Aspect Medical Systems, Inc. Aspect Medical Systems International B.V.
One Upland Road Rijnzathe 7d2
Norwood, MA 02062 3454 PV De Meern
U.S.A. The Netherlands
(Tel) 617-559-7000 Tel: +31.30.662.9140 0123
(Tel) 888-BIS INDE(X) (U.S. only) Fax: +31.30.662.9150
(Fax) 617-559-7400 amsint@aspectms.com
bis_info@aspectms.com
www.aspectmedical.com 070-0089 1.01
EC REP
BIS VIEW Monitoring System
OPERATING MANUAL
Copyright, 2007, Aspect Medical Systems, Inc. All rights reserved. Copying or other
reproduction of this document is prohibited without prior written consent of Aspect
Medical Systems, Inc.
BIS VIEW is a trademark of Aspect Medical Systems, Inc.
Aspect, Bispectral Index, BIS, the BIS logo, BISx, the BISx logo and Zipprep are trademarks
of Aspect Medical Systems, Inc. and are registered in the U.S.A., E.U. and other countries.
TABLE OF CONTENTS
ABOUT THIS MANUAL........................................................................................ i
INTRODUCING THE BIS VIEW MONITORING SYSTEM............................. ii
2.3 The BIS VIEW Monitoring System – Equipment and Supplies .............................. 2-6
2.3.1 The BIS VIEW Monitor........................................................................................................................... 2-7
2.3.1.1 Front Panel...................................................................................................................................... 2-7
2.3.1.6 Integral Battery .............................................................................................................................. 2-9
2.3.4 BIS Sensor................................................................................................................................................ 2-11
2.5.1 Starting the Monitor for the First Time ............................................................................................ 2-12
2.5.2 Starting the Monitor from Standby Mode......................................................................................... 2-12
2.6 Initial Menu Settings.................................................................................................. 2-13
2.6.1 Language Selection................................................................................................................................. 2-13
2.6.2 Date and Time........................................................................................................................................ 2-13
2.6.3 Save Settings............................................................................................................................................ 2-14
3 OPERATING THE BIS VIEW MONITORING SYSTEM........................ 3-1
3.1 Preparing for Operation ............................................................................................. 3-1
3.3.4 Signal Quality Indicator........................................................................................................................... 3-8
3.3.6 Case ID....................................................................................................................................................... 3-8
3.3.7 Message Region ........................................................................................................................................ 3-8
3.4 BIS Trend Display Screen with Sensor Status.......................................................... 3-9
3.4.1 BIS Trend Graph .................................................................................................................................... 3-10
3.4.2 Target Range ........................................................................................................................................... 3-10
3.5 BIS Trend Display Screen with EEG........................................................................ 3-10
3.6 Menu Selections ......................................................................................................... 3-11
3.7 Ending a Case ............................................................................................................. 3-19
3.8 Data Transfer ............................................................................................................. 3-19
3.9 How the BIS VIEW Monitoring System Works..................................................... 3-20
3.9.1 Bispectral Index (BIS) ............................................................................................................................ 3-21
3.9.2 System Self-Checks................................................................................................................................ 3-22
3.9.3 Data Memory.......................................................................................................................................... 3-23
5.2.2 System Checkout ..................................................................................................................................... 5-2
5.2.3 Checking the Battery............................................................................................................................... 5-3
5.2.4 Replacing the Battery .............................................................................................................................. 5-4
5.2.5 Replacing the Power Supply................................................................................................................... 5-4
Figure 8 - BIS Number Display..................................................................................................... 3-6
Figure 9 - Screen Features – BIS Trend Display Screen with Sensor Status........................... 3-9
Figure 10 - BIS Trend Display Screen with EEG..................................................................... 3-10
Figure 11 - Trend Display with Target Range ........................................................................... 3-14
Figure 12 - BIS Range Guidelines ...............................................................................................3-21
Figure 13 - Replacing the Power Supply....................................................................................... 5-4
Figure 14 - BIS VIEW Menu Map ................................................................................................ 7-1
ABOUT THIS MANUAL
This Operating Manual contains all of the information you need to set up and operate the
Aspect Medical Systems’ BIS VIEW Monitoring System (Figure 3). It also includes
specific cleaning and test procedures you may occasionally be required to perform. Although
this manual is intended for trained medical personnel, it does not assume prior knowledge or
experience with operator-programmable medical electronics devices.
Keep this Operating Manual with the BIS VIEW monitor for use by the operator. This
manual is also intended to be a service information manual for service technicians or
biomedical engineering personnel.
Before attempting to set up or use the BIS VIEW system, please familiarize yourself
with the safety information provided in this section.
i
INTRODUCING THE BIS VIEW MONITORING SYSTEM
Introduction
The BIS VIEW Monitoring System is a user-configurable patient monitoring system
designed to monitor the hypnotic state of the brain based on acquisition and processing of
EEG signals. The BIS VIEW system processes raw EEG signals to produce a single
number, called the Bispectral Index, or BIS, which correlates with the patient's level of
hypnosis.
The BIS VIEW monitor display consists of:
The current BIS number
Trend graph of BIS values over time
Raw EEG waveforms in real time
Various signal quality indicators (EMG, SQI, SR)
Alarm Indicator and Messages
The system performs self-tests to ensure that the monitor and its components are
functioning properly and that impedance levels of patient sensors are within acceptable
limits. Easy-to-use menus allow the user to change the data display and review stored data.
ii
Important Information about Using BIS Monitoring
BIS monitoring systems are intended for use under the direct supervision of a licensed
healthcare practitioner or by personnel trained in their proper use. They are intended for use
on adult and pediatric patients within a hospital or medical facility providing patient care to
monitor the state of the brain by data acquisition of EEG signals.
The BIS may be used as an aid in monitoring the effects of certain anesthetic agents;
and its usage with certain anesthetic agents may be associated with a reduction in primary
anesthetic use and a reduction in emergence and recovery time.
Use of BIS monitoring to help guide anesthetic administration may be associated with the
reduction of incidence of awareness with recall in adults during general anesthesia and
sedation.
BIS is a complex monitoring technology intended for use as an adjunct to clinical judgment
and training. Clinical judgment should always be used when interpreting the BIS in
conjunction with other available clinical signs. Reliance on the BIS alone for intraoperative anesthetic management is not recommended. As with any monitored
parameter, artifacts and poor signal quality may lead to inappropriate BIS values. Potential
artifacts may be caused by poor skin contact (high impedance), muscle activity or rigidity,
head and body motion, sustained eye movements, improper sensor placement and unusual
or excessive electrical interference. BIS values should also be interpreted cautiously with
certain anesthetic combinations, such as those relying primarily on either ketamine or nitrous
oxide/narcotics to produce unconsciousness. Due to limited clinical experience in the
following applications, BIS values should be interpreted cautiously in patients with known
neurological disorders and those taking other psychoactive medications.
The BIS education site, www.biseducation.com
articles on the clinical use of BIS. In addition, there is a “Monitoring Consciousness Using
the Bispectral Index During Anesthesia” Clinician’s Pocket Guide available on the website
and through your local Aspect Representative.
For more information, please contact Aspect Medical Systems at (800) 442-2051. If you
require additional information on the use of BIS, please contact Aspect Medical Systems
Clinical Support at 800-442-8655 or 617-559-7655 if calling from outside of the USA.
Caution:
Carefully read this entire manual before using the monitor in a clinical
setting.
WARNINGS, CAUTIONS, AND NOTES
The terms warning, caution, and note have specific meanings in this manual.
A WARNING advises against certain actions or situations that could result in
personal injury or death.
A CAUTION advises against actions or situations that could damage equipment,
produce inaccurate data, or invalidate a procedure, although personal injury is
unlikely.
A NOTE provides useful information regarding a function or procedure.
KEY TO SYMBOLS
A key to the symbols used on the BIS VIEW system appears at the end of this section.
1.1 Warnings
EXPLOSION HAZARD: DO NOT USE THE BIS VIEW SYSTEM IN A
FLAMMABLE ATMOSPHERE OR WHERE CONCENTRATIONS OF
FLAMMABLE ANESTHETICS MAY OCCUR.
MONITOR IS NOT DESIGNED FOR USE IN MRI ENVIRONMENT.
CONSIDERATIONS WHEN USING ELECTRO CONVULSIVE THERAPY
(ECT) EQUIPMENT DURING BIS MONITORING:
SEPARATE ECT ELECTRODES FROM THE BIS SENSOR AS MUCH AS
POSSIBLE TO MINIMIZE THE EFFECT OF INTERFERENCE.
CERTAIN ECT EQUIPMENT MAY INTERFERE WITH THE PROPER
FUNCTION OF THE BIS MONITORING SYSTEM. CHECK FOR
COMPATIBILITY OF EQUIPMENT DURING PATIENT SETUP.
USE ONLY THE POWER CORD SUPPLIED BY THE MANUFACTURER.
NEVER ADAPT THE PLUG FROM THE MONITOR TO FIT A NONSTANDARD OUTLET.
U.S.A. REQUIREMENT: FOR PROPER GROUNDING, THE POWER
RECEPTACLE MUST BE A THREE-WIRE GROUNDED OUTLET. A
HOSPITAL GRADE OUTLET IS REQUIRED. NEVER ADAPT THE THREEPRONG PLUG FROM THE MONITOR TO FIT A TWO-SLOT OUTLET. IF
THE OUTLET HAS ONLY TWO SLOTS, MAKE SURE THAT IT IS
REPLACED WITH A THREE-SLOT GROUNDED OUTLET BEFORE
ATTEMPTING TO OPERATE THE MONITOR.
IF THE INTEGRITY OF THE EXTERNAL PROTECTIVE EARTH GROUND
IS IN DOUBT, THE BIS VIEW SYSTEM SHALL BE OPERATED FROM ITS
INTERNAL BATTERY POWER SOURCE ONLY.
BE SURE THE MONITOR IS MOUNTED SECURELY IN PLACE TO AVOID
PERSONAL OR PATIENT INJURY.
WHEN CONNECTING EXTERNAL EQUIPMENT (e.g., DATA CAPTURE
COMPUTER), THE SYSTEM LEAKAGE CURRENT MUST BE CHECKED
AND MUST BE LESS THAN THE IEC 60601-1-1 LIMIT.
THE USE OF ACCESSORY EQUIPMENT NOT COMPLYING WITH THE
EQUIVALENT SAFETY REQUIREMENTS OF THIS EQUIPMENT MAY
LEAD TO A REDUCED LEVEL OF SAFETY OF THE RESULTING SYSTEM.
CONSIDERATION RELATING TO THE CHOICE SHALL INCLUDE:
USE OF THE ACCESSORY IN THE PATIENT VICINITY
EVIDENCE THAT THE SAFETY CERTIFICATION OF THE
ACCESSORY HAS BEEN PERFORMED IN ACCORDANCE TO THE
APPROPRIATE IEC 60601-1 AND/OR IEC 60601-1-1 HARMONIZED
NATIONAL STANDARD.
DUE TO ELEVATED SURFACE TEMPERATURE, DO NOT PLACE BISx IN
PROLONGED DIRECT CONTACT WITH PATIENT’S SKIN, AS IT MAY
CAUSE DISCOMFORT.
THE CONDUCTIVE PARTS OF ELECTRODES OR SENSOR AND
CONNECTORS SHOULD NOT CONTACT OTHER CONDUCTIVE PARTS,
INCLUDING EARTH.
TO REDUCE THE HAZARD OF BURNS DURING USE OF HIGHFREQUENCY SURGICAL EQUIPMENT, THE SENSOR OR ELECTRODES
SHOULD NOT BE LOCATED BETWEEN THE SURGICAL SITE AND THE
ELECTRO-SURGICAL UNIT RETURN ELECTRODE.
THE SENSOR MUST NOT BE LOCATED BETWEEN DEFIBRILLATOR
PADS WHEN A DEFIBRILLATOR IS USED ON A PATIENT CONNECTED
TO THE BIS VIEW SYSTEM.
TO MINIMIZE THE RISK OF PATIENT STRANGULATION, THE PATIENT
INTERFACE CABLE (PIC) MUST BE CAREFULLY PLACED AND SECURED.
DO NOT EXPORT BISx HISTORY DATA WHILE A CASE IS IN PROGRESS.
SHOCK HAZARD: DO NOT ATTEMPT TO DISCONNECT THE POWER
CORD WITH WET HANDS. MAKE CERTAIN THAT YOUR HANDS ARE
CLEAN AND DRY BEFORE TOUCHING THE POWER CORD.
UNIVERSAL PRECAUTIONS SHALL BE OBSERVED TO PREVENT
CONTACT WITH BLOOD OR OTHER POTENTIALLY INFECTIOUS
MATERIALS. PLACE CONTAMINATED MATERIALS IN REGULATED
WASTE CONTAINER.
DO NOT MIX DISINFECTING SOLUTIONS (e.g., BLEACH AND AMMONIA),
AS HAZARDOUS GASES MAY RESULT.
ELECTRICAL SHOCK HAZARD: DO NOT REMOVE MONITOR COVERS
DURING OPERATION OR WHILE POWER IS CONNECTED TO MONITOR.
ELECTRICAL SHOCK HAZARD: THE MANUFACTURER'S INSPECTION OF
THIS APPARATUS VERIFIED THAT THE GROUND LEAKAGE CURRENT
AND THE PATIENT SAFETY CURRENT WERE LESS THAN THE
SPECIFIED LIMITS ESTABLISHED BY THE APPLICABLE SAFETY
STANDARDS. AS A MATTER OF SAFE PRACTICE, THE INSTITUTION
SHOULD CONDUCT PERIODIC TESTS TO VERIFY THESE CURRENTS.
WHENEVER AN EVENT SUCH AS SPILLAGE OF BLOOD OR SOLUTIONS
OCCURS, RE-TEST LEAKAGE CURRENT BEFORE FURTHER USE.
LEAKAGE CURRENT MUST BE CHECKED WHENEVER INSTRUMENT
CASE IS OPENED BY A QUALIFIED BIOMEDICAL ENGINEERING
TECHNICIAN.
POWER SUPPLY IS INTERNALLY FUSED. REPLACE POWER SUPPLY
ONLY WITH ASPECT MEDICAL SYSTEMS BIS VIEW POWER SUPPLY.
1.2 Cautions
Read this entire manual carefully before using the monitor in a clinical setting.
Do not autoclave the BISx or Monitor. Autoclaving will seriously damage both
components.
Do not block ventilation inlet holes on the underside of monitor.
Do not open the BISx for any reason. The seal to prevent liquids from entering the
BISx may be damaged if opened.
The BIS VIEW system has been designed to operate with a BIS sensor. The sensor is
a silver/silver chloride electrode array that utilizes Aspect's patented Zipprep
technology and uses a proprietary connector. Use of other electrodes is not
recommended.
Do not remove drive while export is in progress.
Continuous impedance checking may need to be disabled if the 1 nanoampere 128
Hz impedance check signal interferes with other equipment (e.g., evoked potential
monitors).
Check the battery periodically by operating a BIS VIEW monitor that has been
disconnected from the wall socket and that has been charged to full capacity (at least
6 hours of charge time). After long periods of storage (e.g., more than 1 month) it
may be necessary to cycle (charge, then discharge) the battery a few times to get full
charge capacity. If the BIS VIEW monitor fails to operate reliably from the battery
for approximately 45 minutes, battery replacement is required.
The BIS VIEW monitor contains an internal Lithium ion battery. The battery must
be removed by a qualified service technician and disposed of or recycled in
accordance with the national laws of the country. Contact Aspect Medical Systems,
Inc. or the local distributor for a replacement battery: Aspect part number 186-0208.
Avoid liquid ingress to the Patient Interface Cable. Contact of fluids with the PIC
sensor connector can interfere with PIC performance.
The BIS VIEW system complies with the electromagnetic compatibility
requirements of IEC 60601-1-2. Operation of this device may affect or be affected by
other equipment in the vicinity due to electromagnetic interference (EMI). If this
occurs:
Increase separation between devices
Re-orient device cabling
Plug devices into separate outlet circuit branches
Refer to Section 8.2 “Electromagnetic Compatibility Specifications.”
Do not disconnect the BISx during the software update.
When connecting or disconnecting BISx, take care not to touch the exposed contacts
of either connector. Damage due to electrostatic discharge may result.
Using accessories other than those specified may result in increased electromagnetic
emissions or decreased electromagnetic immunity of the BIS VIEW Monitoring
System.
The BIS VIEW Monitor should not be used adjacent to or stacked with other
equipment. If adjacent or stacked use is necessary, the BIS VIEW Monitor should be
observed to verify normal operation in the configuration in which it will be used.
To completely remove power from the unit: put the monitor in standby mode,
disconnect power cord from the power cord receptacle of the monitor, then remove
the battery from the monitor.
The BIS VIEW monitor may not power up entirely if battery power is low. If that
should occur, connect unit to wall power and press the Reset button. (Refer to
Section 6.4 “Using the Reset Button”).
Service or repairs must be performed only by qualified biomedical technicians.
Important:
The BIS VIEW systems comply with the European Medical Device Directive (MDD)
and applicable regulatory requirements of the country distributed to and carry the
CE
Marking. Declarations of Conformity provided upon request where
Verify ‘OPERATING ON BATTERY BACKUP’ is displayed
Verify battery icon displays.
7. Reconnect power cord.
Verify battery icon is not displayed.
Verify “OPERATING ON BATTERY BACKUP” is not displayed.
8. End of checkout.
2.2 Environment
2.2.1 Shipping and Storage Environment
The monitor and its accessories can be stored or shipped within the following environmental
limits. Note that these limits apply to non-operational storage and shipping situations.
Temperature -10C to +60C
Humidity 15% to 95% (non-condensing)
Pressure 800 mm Hg (1500 feet below sea level) to 360mm Hg (20,000 feet
above sea level)
Protect the monitor from sudden temperature changes that can lead to condensation within
the instrument. To minimize condensation, avoid moving the system between heated
buildings and outside storage. Once moved inside, allow the monitor to stabilize in the
unopened shipping container at the inside ambient temperature before unpacking and
placing into service. Before operation, wipe down all visible condensation and allow the
system to reach equilibrium at room temperature.
2.2.2 Operating Environment
The BIS VIEW Monitoring System is not designed for use in areas containing flammable
gases or vapors.
WARNING:
EXPLOSION HAZARD: DO NOT USE THE BIS VIEW SYSTEM
IN A FLAMMABLE ATMOSPHERE OR WHERE
CONCENTRATIONS OF FLAMMABLE ANESTHETICS MAY
OCCUR.
MONITOR IS NOT DESIGNED FOR USE IN MRI
ENVIRONMENT.
The BIS VIEW monitor is designed to operate safely under the following conditions.
Conditions outside these ranges could affect reliability.
Temperature 0C to +40C
Humidity 15% to 95% (non-condensing)
Pressure 800 mm Hg (1500 feet below sea level) to 360mm Hg (20,000 feet
above sea level)
2.2.3 Power Requirements and System Grounding
The BIS VIEW Monitoring System requires a power source of 100-240 VAC, 50-60Hz.
Current consumption is 0.7 ampere maximum.
To protect operating personnel and patients, the monitor must be properly grounded.
Accordingly, the monitor is equipped with a hospital grade line cord. The power cord
grounds the system to the power line ground when plugged into an appropriate three-wire
receptacle.
WARNING:
USE ONLY THE POWER CORD SUPPLIED BY THE
MANUFACTURER. NEVER ADAPT THE PLUG FROM THE
MONITOR TO FIT A NON-STANDARD OUTLET.
U.S.A. REQUIREMENT: FOR PROPER GROUNDING, THE
POWER RECEPTACLE MUST BE A THREE-WIRE GROUNDED
OUTLET. A HOSPITAL GRADE OUTLET IS REQUIRED.
NEVER ADAPT THE THREE-PRONG PLUG FROM THE
MONITOR TO FIT A TWO-SLOT OUTLET. IF THE OUTLET
HAS ONLY TWO SLOTS, MAKE SURE THAT IT IS REPLACED
WITH A THREE-SLOT GROUNDED OUTLET BEFORE
ATTEMPTING TO OPERATE THE MONITOR.
IF THE INTEGRITY OF THE EXTERNAL PROTECTIVE
EARTH GROUND IS IN DOUBT, THE BIS VIEW MONITOR
SHALL BE OPERATED FROM ITS INTERNAL BATTERY
POWER SOURCE ONLY.
The BIS VIEW Monitoring unit does not contain a
Since the exposed metal parts on the rear of the BIS VIEW Monitor (Communication serial
port and USB ports) are separated from live parts by double insulation, a ground continuity
test does not apply to these parts. The components of the BIS VIEW Monitor that are
connected to protective earth are contained within its enclosure and are not accessible to the
user of the equipment. However, as stated in the operating manual, an enclosure leakage
current test should be performed on the exposed metal parts and should be checked
periodically to ensure that the integrity of the equipment’s insulation system is maintained.
The leakage current test should include measurement of ground wire leakage, enclosure
leakage, and patient leakage.
Ground wire leakage typically can be performed automatically by connecting the A/C power
cord of the BIS VIEW Monitor into a safety tester. The enclosure leakage may be measured
by any safety test equipment that is capable of connecting to isolated conductive parts and
measuring the current from those parts to earth. The patient connection terminals of many
safety testers can be used for this purpose. The patient leakage current can be measured by
connecting the patient connection terminals of a safety tester to the patient input connection
(the PIC) of the BISx.
The BIS VIEW Monitor has been certified by Underwriters Laboratories to comply with
IEC 60601-1, as indicated on the labeling on the rear of the monitor.
2.2.4 Electromagnetic Compatibility Requirements
The BIS VIEW Monitoring System should be used only with the power cord and accessories
recommended and supplied by Aspect Medical Systems, Inc. The system must be set up and
put into use according to the specifications described in Section8.2 “Electromagnetic
Compatibility Specifications.”
Caution:
The BIS VIEW system complies with the electromagnetic
compatibility requirements of IEC 60601-1-2. Operation of this device
may affect or be affected by other equipment in the vicinity due to
electromagnetic interference (EMI). If this occurs:
Increase separation between devices
Re-orient device cabling
Plug devices into separate outlet circuit branches
Refer to Section 8.2 “Electromagnetic Compatibility Specifications.”
2.2.5 Site Preparation: Mounting the Monitor
Aspect Medical Systems, Inc. strongly recommends permanent mounting of the BIS VIEW
monitor to the anesthesia machine to enhance safety and facilitate ease-of-use. Please
contact your local representative or Aspect to discuss mounting options.
WARNING:
BE SURE THE MONITOR IS MOUNTED SECURELY IN PLACE
TO AVOID PERSONAL OR PATIENT INJURY.
2.2.5.1 Mounting the Monitor using the Pole Clamp
To mount the monitor to a secure vertical pole (1/2" - 1½" in diameter):
1. Place pole within clamp bracket and tighten screw using the black finger knob. Make
sure that there is enough space above the clamp so that you have a few inches to slide
the monitor in from above.
2. Line up the clamp shoe (on back of monitor) with the slot on pole clamp and slide
monitor down to fit. The bottom of the clamp shoe should be seen well below the
bottom of the pole clamp, and the monitor should snap securely into place.
To remove the monitor, press tab on top of clamp shoe before sliding monitor up.
The pole clamp may be locked onto the monitor so that the two do not get separated. To do
this:
1. Line up the clamp shoe (on back of monitor) with the slot on pole clamp and slide
monitor down to fit. The bottom of the clamp shoe should be seen well below the
bottom of the pole clamp and the monitor should snap securely into place.
2. Make sure that set screw hole on pole clamp aligns with corresponding hole on clamp
shoe.
3. Remove black knob screw from pole clamp.
4. Using the Allen wrench supplied, secure pole clamp to monitor with the set screw
provided.
5. Replace black knob screw.
6. To attach to pole, place pole within clamp bracket and tighten screw using the black
finger knob.
2.2.5.2 Optional Mounting Accessories
For information on optional mounting accessories, request Aspect’s “Monitor Mounting
Solutions” booklet (part number 070-0031).
The BIS VIEW Monitoring System consists of the following basic components:
BIS VIEW Monitor (P/N 185-0205)
BISx (P/N 185-0145-AMS)
Patient Interface Cable (PIC)
BIS Sensor
Detachable Power Cord
Sensors are sold separately. For a list of available sensors please contact Aspect Medical
Systems, Inc. or your local distributor.
A pole clamp is also included; however its use is optional. Contact Aspect or your local
representative for information on additional equipment and accessories.
The front panel of the BIS VIEW monitor contains four soft keys, an alarm key, the BISx
port and the ON/Standby button. See Figure 3.
2.3.1.2 Soft Keys
The four white “soft” keys directly under the BIS VIEW screen are used to make all
selections. These keys are designed to function even when the user is wearing examination
gloves.
2.3.1.3 Alarm Key
The Alarm Key is used to pause, silence, or reinstate audible alarms.
2.3.1.4 ON/Standby button
The ON/Standby button is located in the lower right corner of the monitor and indicates
whether the monitor is ON or in Standby mode. When the small LED light to the right of
the ON/Standby button is green, the unit is running and providing power to the BISx.
When it is yellow, the battery is charging and the system is in Standby mode. When it is not
lit, no A/C power is available to the unit; pressing the ON/Standby button will start up the
monitor using the battery.
The rear panel components are pictured in Figure 4. They include: two USB ports (Type A
and B), the Reset button, an RS-232 port, the Battery/Power Supply cover, and the clamp
shoe.
USB Port
(Type A)
USB Port
(Type B)
Battery/Power
Supply
Cover
Reset Button
Serial Port
Power Cord
Receptacle
Clamp Shoe
Figure 4 - Rear Panel
There are two USB ports on the rear of the monitor. The Type A port is used to export
data to a removable drive. It is also used to update monitor and BISx software. The USB
(Type B) port is for manufacturer’s use only.
The clamp shoe allows the monitor to slide into the pole clamp so that it can be attached
to a ½" – 1 ½" diameter vertical pole.
The RS-232 serial port can be used to transfer data from the monitor.
WARNING:
WHEN CONNECTING EXTERNAL EQUIPMENT (e.g., DATA
CAPTURE COMPUTER), THE SYSTEM LEAKAGE CURRENT
MUST BE CHECKED AND MUST BE LESS THAN THE IEC
60601-1-1 LIMIT.
THE USE OF ACCESSORY EQUIPMENT NOT COMPLYING
WITH THE EQUIVALENT SAFETY REQUIREMENTS OF THIS
EQUIPMENT MAY LEAD TO A REDUCED LEVEL OF SAFETY
OF THE RESULTING SYSTEM. CONSIDERATION RELATING
TO THE CHOICE SHALL INCLUDE:
USE OF THE ACCESSORY IN THE PATIENT VICINITY
EVIDENCE THAT THE SAFETY CERTIFICATION OF
THE ACCESSORY HAS BEEN PERFORMED IN
ACCORDANCE TO THE APPROPRIATE IEC 60601-1
AND/OR IEC 60601-1-1 HARMONIZED NATIONAL
STANDARD.
Under normal operation, power is cycled through the ON/Standby button. The Reset
button can be used to reset the software functions of the BIS monitor (and the BISx if it is
attached) in the unlikely case that it is required. See Section 6.4 “Using the Reset Button.”
The Battery/Power Supply cover contains the BIS VIEW monitor’s power supply and
allows access to its battery.
The power cord receptacle, located on the side of the Battery/Power Supply cover, is used
to plug in the power cord provided by the manufacturer. It provides power to the monitor
and to the BISx when it is attached.
Caution:
The BIS VIEW Monitoring System complies with the electromagnetic
compatibility requirements of IEC60601-1-2. Operation of this device
may affect or be affected by other equipment in the vicinity due to
electromagnetic interference (EMI). If this occurs:
Increase separation between devices
Re-orient device cabling
Plug devices into separate outlet circuit branches
Refer to Section 8.2 “Electromagnetic Compatibility Specifications.”
2.3.1.6 Integral Battery
A rechargeable lithium ion battery inside the monitor provides approximately 45 minutes of
back-up power when power cannot be supplied via the power cord. Recharge time is
approximately 6 hours. The battery charges continually as long as the unit is plugged into
A/C power.
When the system is running on battery, a battery icon displays indicating the battery status. A
battery icon with four green bars indicates that the battery is fully charged. When the battery
reaches a low power condition, the monitor beeps and the battery symbol displayed on the
screen changes color. In addition, a “Battery Voltage Low” message blinks in the Message
area of the screen.
Caution:
Check the battery periodically by operating a BIS VIEW monitor that
has been disconnected from the wall socket and that has been charged
to full capacity (at least 6 hours of charge time). After long periods of
storage (e.g., more than 1 month) it may be necessary to cycle (charge,
then discharge) the battery a few times to get full charge capacity. If
the BIS VIEW monitor fails to operate reliably from the battery for
approximately 45 minutes, battery replacement is required.
The BIS VIEW monitor contains an internal lithium ion battery. The
battery must be removed by a qualified service technician and
disposed of or recycled in accordance with the national laws of the
country. Contact Aspect Medical Systems, Inc. or the local distributor
for a replacement battery: Aspect part number 186-0208.
2.3.2 BISx
Patient Interface Cable (PIC)
Monitor Interface Cable
Figure 5 - BISx and PIC
The BISx receives, filters, and processes patient EEG signals. It is located close to the
patient's head where the EEG signal is less subject to interference from other medical
equipment.
The BISx is shown in Figure 5. Its long flexible Monitor Interface Cable connects to the
front of the monitor. The Patient Interface Cable (PIC) connects the BIS sensor to the
BISx.
The attachment clip on the BISx is used to secure it in a convenient location near the
patient's head.
WARNING:
DUE TO ELEVATED SURFACE TEMPERATURE, DO NOT
PLACE BISx IN PROLONGED DIRECT CONTACT WITH
PATIENT’S SKIN, AS IT MAY CAUSE DISCOMFORT.
Caution:
Do not open BISx for any reason. The seal to prevent liquids from
entering the BISx may be damaged if opened. Service or repairs must
be performed only by qualified biomedical technicians.
2.3.3 Patient Interface Cable (PIC)
Aspect's BIS Sensor Patient Interface Cable (PIC) (see Figure 3) connects the BISx to the
BIS sensor.
2.3.4 BIS Sensor
The sensor is the single use component of the BIS Monitoring System and should be
replaced after each use. For details on how to apply the sensor to the patient and how to
connect to the BIS Monitoring System, refer to the BIS Sensor’s instructions for use. All
sensors, including the BIS Extend Sensor, utilize the monitor’s active settings (such as
smoothing rate).
2.4 Cable Connections
After you have familiarized yourself with the safety information in the introductory section
of this manual and have prepared a suitable environment, follow these steps to prepare the
BIS VIEW system for operation.
1. Connect the BISx to the monitor
Holding the cylindrical connector with the flat side up, plug the BISx Monitor
Interface Cable into the BISx port on the front of the monitor.
Once connected, the BISx need not be disconnected again. However, if you wish to
disconnect the BISx cable from the monitor, carefully grasp the connector and pull.
DO NOT pull on the cable.
2. Connect the PIC to the BISx
Attach the gray connector of the Patient Interface Cable to the BISx.
Note:
Connect with the BIS logo facing up for proper pin alignment. To disconnect the PIC, grasp
the connector housing and pull firmly. DO NOT pull apart by the cable wire.
To start the instrument for the first time, after it has been reset with the RESET button, or
after battery replacement:
1. Attach one end of the power cord to the receptacle on the left side of the monitor.
2. Plug the other end of the power cord into a properly grounded hospital-grade AC
power outlet. A yellow light illuminates to the right of the ON/Standby button.
3. Press the ON/Standby button. The light changes to green and diagnostics tests run
to verify that the system is operating properly. (Do not connect or disconnect
equipment, or press keys until the monitor has completed its tests.) A beep indicates
that the tests are complete. If there is a problem, the system halts and an error
message appears. Error messages are explained in the Troubleshooting section of
this manual.
When not in use, the monitor should be placed in Standby mode. To put the system in Standby mode, press and hold the ON/Standby button for two seconds before releasing.
The light will change from green to yellow. If the monitor is running on battery, the light will
go off completely.
Caution:
To completely remove power from the unit: put the monitor in Standby
mode, disconnect power cord from the power cord receptacle of the
monitor, then remove the battery from the monitor.
2.5.2 Starting the Monitor from Standby Mode
When the monitor is in Standby mode (yellow light), you may start it by pressing the
ON/Standby button. The light will change to green.
When not in use, the monitor should be placed in Standby mode. To put the system in Standby mode, press and hold the ON/Standby button for two seconds before releasing.
The light will change from green to yellow. If the monitor is not connected to A/C power,
the light will go off completely.
Caution:
To completely remove power from the unit: put the monitor in Standby
mode, disconnect power cord from the power cord receptacle of the
monitor, then remove the battery from the monitor.
Before using the BIS VIEW monitor for the first time, you may need to select the proper
language and set the current date and time. Other setting options are discussed in detail in
Section 3.
All menu selections are made using the four soft keys located under the monitor
screen. The function of each key is displayed in a box on the screen, directly above
the key. To access the Menus, press the key below [MENU] on the right side of the
screen. Press the keys labeled [▲] (Up) or [▼] (Down) to scroll through the menu
options, and press the key under [SELECT] to make a selection. Press the key under
[HOME] at any time to return to the main display screen.
From this point forward, when the user is instructed to press the [xx] key, it should
be understood that the instruction refers to the soft key located under that label.
2.6.1 Language Selection
The BIS VIEW monitor is designed to support multiple languages. If the screen does not
display the desired language, follow these steps:
To change the language:
1. Press [MENU] to access the Main Menu. (The MENU key is the soft key on the far
right.)
2. Use the [▲] or [▼] key to highlight [Maintenance]. (Maintenance is the fourth
selection on the list). Press [SELECT]. The Maintenance Menu appears.
3. Highlight [Language]. (Language is the third selection on the list.) Press
[SELECT]. The Language Menu appears.
4. Use the [-] or [+] key to scroll through the available languages until the desired
language displays. Press [SELECT].
To permanently save this change, go to MENU>Setup>Settings and press [SAVE ACTIVE]. See instructions in Section 2.6.3 “Save Settings.”
2.6.2 Date and Time
To set the current Date and Time:
1. Press [MENU] to access the Main Menu.
2. Use the [▲] or [▼] key to highlight [Setup]. Press [SELECT]. The Setup Menu
displays.
3. Highlight [Date/Time]. Press [SELECT]. The Date/Time Menu displays.
4. Use the [▲] or [▼] key to highlight the item that you want to change. Press
[SELECT].
5. Use the [-] and [+] keys to decrease or increase the item (day, month, year, hour, or
minute). When the item is correct, press [SELECT].
(To exit the screen without saving changes, press [BACK.])
6. When all time and date fields are correct, highlight [Apply Change], then press
[SELECT] to save the changes. The message, “Date and Time Changed” displays.
The Date/Time is initially set for the Eastern Standard or Eastern Daylight Time zone
(USA). It will be necessary for you to change the time twice per year using the Date/Time
feature if you are located in a time zone that alters its clocks at the beginning or end of
Daylight Savings Time.
When time is set to a time before the last recorded data, the following message appears on
the screen: “Processing the requested change will result in loss of all data collected since
[date]. BIS History and sensor data saved in BISx will NOT be erased.” Press [CANCEL] to
return to Date and Time Menu with no changes. Press [CONTINUE] to apply the
requested change.
Date and time cannot be changed while a case is in progress.
2.6.3 Save Settings
The BIS VIEW monitor will always start up configured to settings that have been saved in
memory. These settings appear in the “Saved Settings” list. When a user changes a setting,
the change is recorded in the “Active Settings” list, but does not become a default setting
until it is saved to the “Saved Settings” list.
Note:
The following settings are not saved by the Save Settings option: Impedance Checking
(always returns to ON), Diagnostics Codes (returns to OFF).
To access Settings:
1. Press [MENU] to access the Main Menu.
2. Use the [▲] or [▼] key to highlight [Setup]. Press [SELECT]. The Setup Menu
displays.
3. Highlight [Settings]. Press [SELECT]. The Monitor Settings Screen displays the
“Active” and the “Saved” settings. When the Active and Saved settings are different,
they are displayed in yellow font.
To save the Active Settings to the Saved Settings list, press [SAVE ACTIVE]. The active
settings become the new default settings for the monitor.
To return the active settings to the previously saved settings, press [RESTORE SAVED].
The Active Settings will now be the same as the Saved Settings.
When you have finished, press [HOME] to exit.
To restore original factory settings to the monitor, go to MENU>Maintenance>Default
Settings and press [RESTORE]. See Section 6.1.2, “Default Settings” for details.
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Preparing for operation
The sensor check
The three monitor screen displays: BIS Number Display Screen, BIS Trend
Display Screen with Sensor Status and BIS Trend Display Screen with EEG
Waveforms
Software menus and menu selections
Ending a case
Read this section before operating the monitor in a clinical setting.
3.1 Preparing for Operation
After you have familiarized yourself with the safety information in the introductory section
of this manual, prepared a suitable environment, properly connected the BISx and PIC
cables, and completed the initial settings described in Section 2, follow these steps to prepare
the BIS VIEW Monitoring System for operation.
1. Startup and System Check
Press the ON/Standby button on the lower right corner of the monitor to start the monitor.
The light changes from yellow to green, and the system initiates a self-test to make sure that
all equipment is operating properly.
2. Attach BIS Sensor to Patient
Prepare sensor site and place the BIS sensor on the patient in accordance with the
instructions included on the sensor packaging.
Caution:
The BIS VIEW Monitoring System has been designed to operate with
a BIS sensor. The sensor is a silver/silver chloride electrode array that
utilizes Aspect's patented Zipprep technology and uses a proprietary
connector. Use of other electrodes is not recommended.
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WARNINGS:
THE CONDUCTIVE PARTS OF ELECTRODES OR SENSOR
AND CONNECTORS SHOULD NOT CONTACT OTHER
CONDUCTIVE PARTS, INCLUDING EARTH.
TO REDUCE THE HAZARD OF BURNS DURING USE OF
HIGH-FREQUENCY SURGICAL EQUIPMENT, THE SENSOR
OR ELECTRODES SHOULD NOT BE LOCATED BETWEEN
THE SURGICAL SITE AND THE ELECTRO-SURGICAL UNIT
RETURN ELECTRODE.
THE SENSOR MUST NOT BE LOCATED BETWEEN
DEFIBRILLATOR PADS WHEN A DEFIBRILLATOR IS USED
ON A PATIENT CONNECTED TO THE BIS VIEW SYSTEM.
TO MINIMIZE THE RISK OF PATIENT STRANGULATION,
THE PATIENT INTERFACE CABLE (PIC) MUST BE
CAREFULLY PLACED AND SECURED.
3. Secure the BISx
Using the attachment clip, secure the BISx to a convenient location near the patient's head.
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To insert the sensor into the PIC, line up as shown and insert the sensor tab into the
PIC sensor connector until an audible “click” is heard. The blank side of the sensor tab
(i.e. the side without the computer chip) should be facing up.
The Sensor Integrity Check is initiated each time that a sensor is connected to the PIC. It
checks to make certain that a valid, unexpired sensor is in use.
Sensor tab
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The Sensor Check tests the impedance of each electrode on the BIS sensor to verify that it is
within an acceptable range for monitoring. A Sensor Check is initiated automatically when
the sensor and PIC are connected to the BISx. It may also be initiated by the user by
pressing the [SENSOR CHECK] soft key.
The message, “Sensor Check in Progress” appears. When the sensor successfully passes the
test, the Main Screen displays and monitoring begins.
If the sensor does not immediately pass the test, or if the user has manually initiated the test,
the Sensor Check Graphic Screen displays. This screen shows a sensor with a symbol inside
each electrode. The symbol indicates the status of that electrode:
A circle with a question mark indicates that no status is available (Lead is off).
A green circle with a checkmark indicates that the electrode impedance is within the
acceptable range. If all electrodes contain a checkmark, monitoring can begin.
A red circle with an ‘X’ indicates that the electrode impedance is not within the
acceptable range.
Figure 7 - Sensor Check Graphic Screen
The monitor continues updating the values until all impedance values are acceptable. To end
the impedance test, press [EXIT]. The Sensor Check impedance test must be successfully
completed before normal processing resumes.
The “Show Values” Sensor Check Display:
Additional detail may be viewed on this screen by pressing the [SHOW VALUES] soft key.
In this display, the impedance value for each electrode, in kilo ohms, appears on the screen
along with its status:
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PASS - An electrode passes if the impedance for that electrode is less than 7.5 kilo
ohms. The ground electrode (element #2) must be less than 30 kilo ohms to pass.
HIGH - An electrode is labeled “HIGH” if its impedance value is above 7.5 kilo
ohms. As long as the combined impedance of electrodes #1 and #3 and the
combined impedance of electrodes #1 and #4 are less than 15 kilo ohms, the sensor
check will be considered successful.
NOISE - If the signal from the electrode goes beyond the measurable range, the
label “NOISE” displays.
LEAD OFF - If the impedance check indicates that the electrode is not in contact
with the patient, the label “LEAD OFF” displays.
If an electrode does not pass the impedance check, press the edges of the sensor to ensure
adhesion and then press each circle for 5 seconds to ensure proper contact. If the problem
persists, re-prep the electrodes and check all connections. The monitor will continue to
check impedance until it is acceptable.
The “Show Values” Sensor Check Display may be selected as the default Sensor Check
screen display if desired. See Section 3.6.3.1 “Screen Options” for details.
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The BIS Number Display Screen is the default screen display. Once the sensor check has
successfully completed, monitoring begins and the BIS Number Display Screen appears.
This screen displays the following information:
• The BIS value
• The battery icon (if the system is running on battery power)
• An alarm icon (when the alarms are sounding or have been paused or silenced)
• Signal quality indicator
• EMG indicator
• A unique case ID number
• System messages
To set a different screen as the default screen, see Section 3.6.3.1 “Screen Options”
Alarm
Icon
Battery
Icon
Signal
Quality
Indicator
Electromyograph
Indicator
BIS
Number
Case ID
Figure 8 - BIS Number Display
3.3.1 BIS (Bispectral Index) Value
The current numeric value of the BIS is displayed in the upper left corner of the screen.
The BIS number is displayed and continuously updated during all display modes as long as
signal quality is sufficient.
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The battery icon is displayed in the title bar above the BIS number or in the top right corner
of the screen when the monitor and BISx are running on battery power. When the battery
icon is filled with green bars, the battery is fully charged. When the icon turns orange, the
battery is nearly depleted.
If an empty battery icon displays on the screen with a slash across it, there is no battery in
the monitor.
3.3.3 Alarm Icon
The alarm icon indicates the status of the alarms. It is displayed in the title bar above the BIS
number or in the top right corner of the screen when an alarm is sounding or when the
alarms have been paused or silenced. The user may press the alarm key on the front of the
monitor to change the alarm status:
(No Bell Icon
Displayed)
Alarms Active
When no bell icon is displayed, all alarms are active. Pressing the
alarm key pauses all alarms for two minutes.
Alarms Paused
Alarms Silenced
Alarm
Sounding
A yellow bell with a dotted ‘X’ over it indicates that all alarms have
been silenced for two minutes. When this icon is displayed, pressing
the alarm key changes the alarm status to “Alarms Silenced” and the
red bell icon displays.
The red bell with a solid “X” over it indicates that all alarms have
been silenced indefinitely. When this icon is displayed, pressing the
alarm key restores the active alarms.
When a high priority alarm is sounding, the ringing bell displays,
alternating between yellow and green. Pressing the alarm key silences
the current alarm, but does not prevent other alarms from sounding
if another alarm condition should occur. The alarm sounding icon
continues to display as long as the alarm condition exists.
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The Signal Quality Indicator (SQI) is a measure of the signal quality for the EEG channel
source and is calculated based on impedance data, artifact, and other variables. The SQI bar
graph is displayed in the title bar above the BIS number. Signal quality is optimal when all
five bars are green. When signal quality is too low to accurately calculate a BIS value, the BIS
value and other trend variables that are adversely affected by artifact will not be displayed on
the screen.
3.3.5 Electromyograph (EMG) Indicator
The EMG bar graph displays the power (in decibels) in the frequency range 70 - 110 Hz.
This frequency range contains power from muscle activity (i.e., electromyography or
“EMG”) as well as power from other high-frequency artifacts. When the indicator is low, it
indicates that EMG activity is low. BIS monitoring is optimal when the bar is empty.
1 bar represents power in the 30-38 range
2 bars represent power in the 39-47 range
3 bars represent power in the 48-55 range
4 bars represent power greater than 55.
An EMG trend line can be added to the BIS Trend Display screens. See Section 3.6.3.1
“Screen Options.”
3.3.6 Case ID
A new case number is assigned each time a new sensor is attached and passes the Sensor
Check. Case ID is displayed on the BIS Number Display Screen and the Chart Data screen.
3.3.7 Message Region
The Message Region is a space reserved for status and error messages, just below the BIS
Number. Messages are prioritized so that a high priority message displays before a lower
priority message. The background color of the message indicates its priority:
Message Priority Background Color
High Orange
Medium Yellow
Low Light Blue
Information only Dark Blue
Diagnostic codes may be displayed above the messages by activating them in the Diagnostic
Menu. Specific error messages are explained in the Troubleshooting section of this manual
(Section 6).
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From the BIS Number screen, the user may use the four soft keys to:
• Initiate a Sensor Check
• Change the screen display to the BIS Trend Display Screen with Sensor Status
• Change the screen display to the BIS Trend Display Screen with EEG, or
• Access the Menu system.
3.4 BIS Trend Display Screen with Sensor Status
The BIS Trend Display Screen can be displayed by pressing the [TREND/SENSOR] soft
key at the bottom of the screen. The following information displays:
• The BIS Number display in a smaller format
• Current Sensor Status - A diagram of the sensor shows the PASS/FAIL status of
each electrode
•A graph of the BIS numbers plotted over a one hour time period
BIS Number Displa
Current Date and Time
and Sensor Status
BIS Trend Line
Figure 9 - Screen Features – BIS Trend Display Screen with Sensor Status
To make this screen the default screen, go to: MENU>Setup>Screen Options>BIS Display
and select Trend/Sensor Status. See instructions in Section 3.6.3.1 “Screen Options.”
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The BIS Trend Graph plots the values of the Bispectral Index over a 1 hour time period.
The BIS trend is indicated with a thick line and its unit labels appear on the left axis. The
current date and time display in the top right section of the screen (See Figure 9 and Figure
10). A secondary trend line showing EMG activity may be added to the graph, if desired, by
requesting it in the Screen Options Menu.
3.4.2 Target Range
A target range of optimal BIS values may be set by the user. When activated, this target
range displays on the BIS Trend Graph.
If a target range for BIS has been set, the target area displays as two horizontal lines
showing the upper and lower target ranges. If the BIS value falls outside of the target range,
a message displays in the Message Region of the screen, and if an audible alarm was
requested in the target range setup screen, the alarm sounds (unless alarms have been
silenced). The alarm continues to sound until the BIS value returns to the target range or the
alarm is silenced by pressing the alarm key. See Section 3.6.3.2 “Alarms: The Alarms Menu”
for more information.
3.5 BIS Trend Display Screen with EEG
The BIS Trend Display Screen with EEG can be displayed by pressing the
[TREND/EEG] soft key at the bottom of the screen. The following information displays:
The BIS Number display in a smaller format
The BIS Trend Graph (See Section 3.4.1 “BIS Trend Graph”)
EEG waveforms
Suppression Ratio (SR), if requested in the Screen Options Menu. See Section 3.6.3.1
“Screen Options” for details.
Figure 10 - BIS Trend Display Screen with EEG
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Filtered electroencephalogram (EEG) waveforms are displayed with a sweep rate of 25
millimeters per second and a scale of 25 microvolts per division. When artifact is present, the
label ‘artifact’ is displayed at the top of the screen. When the artifact is excessive, a message
appears in the message region of the screen, and data that could be corrupted by artifact,
such as the BIS number, are not displayed.
A test is performed immediately after every sensor check and at 10-minute intervals during
monitoring to check the status of the patient ground connection. During the test, the EEG
display shows a flat line and the message “GROUND CHECK” displays on the screen.
To make this screen the default screen, go to: MENU>Setup>Screen Options>BIS Display
and select Trend/EEG See instructions in Section 3.6.3.1 “Screen Options.”
3.6 Menu Selections
Before using the BIS VIEW monitor for the first time, you may want to update the monitor
with your desired screen settings and the current date and time. You should also familiarize
yourself with the various menu options available. This section describes the menu options
available and how they work.
To make a selection from a menu, use the [▲] (Up) or [▼] (Down) soft keys until
the desired menu item is highlighted, then press [SELECT] to make your selection.
To exit without making a selection or changing a setting, press [HOME].
Main Menu:
Press [MENU] to access the Main Menu.
The Main Menu options are:
Chart Data
Export Data
Setup
Maintenance
Diagnostics
Demo Case
3.6.1 Chart Data
When selected, this option provides a listing of BIS, SQI, EMG and SR values at a selected
time interval, so that they can be recorded on the patient chart. The Case ID number and
case start and end times are displayed at the top of the screen. When the start time is yellow,
the beginning of the case is displayed on the screen. When the case end time is yellow, the
end of the case is displayed on the screen. When start or end time is grey, more data for that
case can be viewed by pressing the [▲] or [▼] key.
The charting interval can be changed by the user on the screen and the default interval can
be set in the menu system. Available intervals are 1, 5, 10 and 15 minutes. When signal
quality is less than half of the level desirable for optimal monitoring conditions, an asterisk
(*) displays next to the SQI number. When signal quality is too low to accurately calculate a
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BIS value, no BIS number displays. Note that SR will only appear if the “Display SR” option
was selected in the “Screen Options” menu.
To access Chart Data:
1. Press [MENU] to access the Main Menu.
2. Highlight [Chart Data]. Press [SELECT]. The Chart Data displays.
3. Use the [▲] and [▼] keys to scroll through the data.
To change the Charting Interval, press [INTERVAL] to scroll through the available
options (1, 5, 10 or 15 minutes).
To permanently save the charting interval, go to MENU>Setup>Screen Options>Charting
Interval, to select the desired interval, then save using the “Save Settings” option. See
instructions in Section 3.6.3.1 “Screen Options.”
3.6.2 Export Data
This selection allows the user to send data to a removable drive via the USB port (Type A) at
the rear of the monitor, or to a device connected to the monitor’s serial port. Recommended
USB drives include:
Sandisk Cruzer Mini and Micro 128, 256, 512 MB or 1 G
PNY Attache 256 or 512 MB
Memorex TravelDrive 512 MB
Kingston DataTraveler 512 MB
Aspect 32 MB and Aspect 128 MB
Data that may be exported include:
Live Data: When this option is selected, live case data (BIS values, SQI, EMG, SR
and unfiltered EEG waveforms) are exported.
BISx History Data: When this option is selected, case data stored in the BISx (BIS
values, SQI, EMG and SR) are exported.
Monitor Error Log: This option reports all system errors, including those related to
the monitor, BISx, PIC or sensor.
Information on the data file format may be obtained by contacting Technical Service. (See
back cover for contact information.)
WARNING:
DO NOT EXPORT BISx HISTORY DATA WHILE A CASE IS IN
PROGRESS.
Before exporting BISx history data:
1. Disconnect the BISx.
2. Disconnect sensor from PIC.
3. Reconnect the BISx only.
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If a case is in progress during Live Data or Monitor Error Log exports, the BIS number will
continue to update and display.
In order to export data, the system must be powered ON and the BISx must be connected
to the monitor. If the removable drive has a “write protect” switch, it must be set to the
“unlock” position. Plug the removable drive into the USB-A port on the back of the
monitor. To access the Export Data function:
1. Press [MENU] to access the Main Menu.
2. Use the [▲] or [▼] key to highlight [Export Data]. Press [SELECT].
3. Highlight [Source]. Press [SELECT].
4. Highlight the data source you want to export (Live Data, BISx History, or Monitor
Error Log), then press [SELECT]. The Export Data Menu re-displays.
6. When the export status screen displays “100% complete,” the drive may be removed
from the back of the monitor. To stop Live Export, press [STOP] before removing
the drive.
To exit while the export is still running, press [HOME]. To stop the export, press [STOP].
Caution:
Do not remove drive while export is in progress.
3.6.3 Setup
The Setup Menu contains these options:
Screen Options
Alarms (set target range, set and test alarm volume)
Smoothing Rate (set smoothing rate to 10, 15, or 30 seconds)
Date and Time
Settings (view or save settings)
3.6.3.1 Screen Options
The Screen Options Menu includes the following:
BIS Display: The BIS VIEW may be set so that the most frequently used screen
display becomes the default screens. There are three screen choices:
o The BIS Number Display Screen,
o The BIS Trend Display Screen with Sensor Status
o The BIS Trend Display Screen with EEG.
Sensor Check Values: Simple pass/fail status, or detailed impedance information
may be displayed.
Charting Interval (Chart Data Screen): Charting interval may be set to display at
various intervals.
Display SR (Suppression Ratio): The Suppression Ratio can be displayed on the BIS
Trend Display Screen with EEG and the Chart Data Screen. Suppression Ratio (SR)
is a calculated parameter to give the user an indication when an isoelectric (flatline)
condition may exist. Suppression ratio is the percentage of time over the last 63second period that the signal is considered to be in the suppressed state, for example:
SR=11 (isoelectric over 11% of the last 63 second review). The SR is displayed in the
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upper right corner of the screen. When SR reaches 100%, the message “Isoelectric
EEG detected” will notify the user.
Secondary Variable: EMG can be plotted as a secondary variable on the BIS Trend
graph.
To access Screen Options:
1. Press [MENU] to access the Main Menu.
2. Use the [▲] or [▼] key to highlight [Setup]. Press [SELECT]. The Setup Menu
displays.
3. Highlight [Screen Options]. Press [SELECT]. The screen options display,
followed by their current default settings.
4. Highlight the screen option that you would like to change, then press [SELECT]. A
new screen displays, listing the available options.
5. Highlight the desired option, then press [SELECT].
6. Press [BACK] to go back to the previous screen.
3.6.3.2 Alarms: The Alarms Menu
Alarms sound to alert the user to possible problems with the patient or the equipment.
Alarm conditions are prioritized so that high priority alarms take precedence over lower
priority alarms. The user may silence the currently sounding alarm or silence all alarms, and
may also set the alarm volume. (See Section 3.3.3 “Alarm Icon” for additional information.)
The Alarms Menu allows users to:
Set the target range of BIS values
Set and test the alarm volume
Figure 11 - Trend Display with Target Range
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To aid in patient management, a target range of desired BIS values may be set. When the
Target Range is activated, the selected range displays on the BIS Trend Graph. When the
Target Alarm is ON, an alarm notifies the user whenever the patient’s BIS value falls outside
of the intended range.
To access the Target Range:
1. Press [MENU] to access the Main Menu.
2. Use the [▲] or [▼] key to highlight [Setup]. Press [SELECT].
3. Highlight [Alarms]. Press [SELECT].
4. Highlight [Target Range]. Press [SELECT].
Target Range: BIS High Limit:
To set the High Limit for the BIS value,
1. Use the [▲] or [▼] key to highlight [BIS High Limit]. Press [SELECT].
2. Press the [+] key to raise the upper limit by 5, or press the [-] key to lower the upper
limit by 5. A high value of 100 = none.
3. When the desired number is displayed, press [SELECT]. To leave the High Limit
unchanged, press [HOME].
To permanently save this change, go to MENU>Setup>Settings and press [SAVE ACTIVE]. See instructions in Section 3.6.3.5 “Settings.”
Target Range: Low Limit:
To set the Low Limit for the BIS value:
1. Use the [▲] or [▼] key to highlight [BIS Low Limit]. Press [SELECT].
2. Press the [+] key to raise the lower limit by 5, or press the [-] key to decrease the
lower limit by 5. A low limit of 0 = none.
3. When the desired number is displayed, press [SELECT]. To leave the Low Limit
unchanged, press [HOME].
To permanently save this change, go to MENU>Setup>Settings and press [SAVE ACTIVE]. See instructions in Section 3.6.3.5 “Settings.”
Target Range Active: Yes/No
To activate the Target Range so that it displays on the BIS Trend Graph, or deactivate it so
that it does not:
1. Use the [▲] or [▼] key to highlight [Target Range Active]. Press [SELECT].
2. Use the [▲] and [▼] keys to select ‘Yes’ (active alarms) or ‘No’ (alarms not active).
3. When the desired selection is highlighted, press [SELECT].
4. Press [BACK] to exit.
To permanently save this change, go to MENU>Setup>Settings and press [SAVE ACTIVE]. See instructions in Section 3.6.3.5 “Settings: Active and Saved Monitor Settings.”
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To activate the target alarms so that they sound when the patient’s BIS value falls outside of
the desired range, or to deactivate the alarms so that they do not:
1. Use the [▲] or [▼] key to highlight [Target Alarm]. Press [SELECT].
2. Use the [▲] and [▼] keys to select ‘On’ or ‘Off’.
3. When the desired selection is highlighted, press [SELECT].
4. Press [BACK] to exit.
To permanently save this change, go to MENU>Setup>Settings and press [SAVE ACTIVE]. See instructions in Section 3.6.3.5 “Settings.”
3.6.3.2.2 Alarm Volume Menu / Test Alarm Volume
The alarms can be set to sound at LOW, MEDIUM, or HIGH volume. A Test Alarm
Volume option is provided to listen to the volume that has been set.
To access the Alarm Volume Menu and set the alarm volume:
1. Press [MENU] to access the Main Menu.
2. Use the [▲] or [▼] key to highlight [Setup]. Press [SELECT]. The Setup Menu
displays.
3. Highlight [Alarms]. Press [SELECT]. The Alarms Menu displays.
4. Highlight [Alarm Volume]. Press [SELECT]. The Alarm Volume Menu appears.
5. Highlight the desired volume (High, Medium, or Low). Press [SELECT].
6. Press [BACK] to return to the previous screen. To test the alarm volume, highlight
[Test Alarm Volume] and press [SELECT].
7. Press [BACK] to exit.
To permanently save this change, go to MENU>Setup>Settings and press [SAVE ACTIVE]. See instructions in Section 3.6.3.5 “Settings.”
3.6.3.3 Smoothing Rate: The Smoothing Rate Menu
The BIS VIEW system offers three choices of smoothing rates over which the BIS value is
averaged:
10 seconds: Provides increased responsiveness to state changes, such as induction or
awakening.
15 seconds: This is the default setting.
30 seconds: Provides a smoother trend with decreased variability and sensitivity to
artifact.
To access the BIS Smoothing Rate:
1. Press [MENU] to access the Main Menu.
2. Use the [▲] or [▼] key to highlight [Setup]. Press [SELECT]. The Setup Menu
displays.
3. Highlight [Smoothing Rate]. Press [SELECT]. The Smoothing Rate Menu
displays.
4. Highlight the desired BIS smoothing rate. Press [SELECT].
5. Press [HOME] to exit.
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SECTION 3 OPERATING THE BIS VIEW MONITORING SYSTEM
To permanently save this change, go to MENU>Setup>Settings and press [SAVE ACTIVE]. See instructions in Section 3.6.3.5 “Settings: Active and Saved Monitor Settings.”
3.6.3.4 Date/Time
The date and time may be changed at any time as long as a case is not in progress. To set the
current Date and Time:
1. Press [MENU] to access the Main Menu.
2. Use the [▲] or [▼] key to highlight [Setup]. Press [SELECT]. The Setup Menu
displays.
3. Highlight [Date/Time]. Press [SELECT]. The Date/Time Menu displays.
4. Use the [▲] or [▼] key to highlight the item that you want to change. Press
[SELECT].
5. Use the [-] and [+] keys to decrease or increase the item (day, month, year, hour, or
minute). When the item is correct, press [SELECT].
(To exit the screen without saving changes, press [BACK].)
6. When all time and date fields are correct, highlight [Apply Change], then press
[SELECT] to save the changes. The message, “Date and Time Changed” displays.
7. Press [HOME] to exit.
Notes:
The Date/Time is initially set for the Eastern Standard or Eastern Daylight Time zone
(USA). It will be necessary for you to change the time twice per year using the Date/Time
feature if you are located in a time zone that alters its clocks at the beginning or end of
Daylight Savings Time.
When time is set to a time before the last recorded data, the following message appears on
the screen: “Processing the requested change will result in loss of all data collected since
[date]. BIS History and sensor data saved in BISx will NOT be erased.” Press [CANCEL] to
return to Date and Time Menu with no changes. Press [CONTINUE] to apply the
requested change.
Date and time cannot be changed while a case is in progress.
3.6.3.5 Settings: Active and Saved Monitor Settings
The BIS VIEW monitor will always start up configured to settings that have been saved in
memory. These settings appear in the “Saved Settings” list. When a user changes a setting in
the menu system, the change is recorded in the “Active Settings” list, but does not become a
default setting unless it is saved to the “Saved Settings” list.
Note:
The following settings are not saved by the Save Settings option: Impedance Checking
(always returns to ON), Diagnostics Codes (returns to OFF).
To access Settings:
1. Press [MENU] to access the Main Menu.
2. Use the [▲] or [▼] key to highlight [Setup]. Press [SELECT]. The Setup Menu
displays.
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3. Highlight [Settings]. Press [SELECT]. The Monitor Settings Screen displays the
“Active” and the “Saved” settings. When the Active and Saved settings are different,
they are displayed in yellow font.
To save the Active settings to the Saved Settings list, press [SAVE ACTIVE]. The active
settings become the new default settings for the monitor.
To return the active settings to the previously Saved settings, press [RESTORE SAVED].
The Active Settings will now be the same as the Saved Settings.
When you have finished, press [HOME] to exit.
To restore original factory settings to the monitor, go to MENU>Maintenance>Default
Settings and press [RESTORE]. See Section 6.1.2, “Default Settings” for details.
3.6.4 Maintenance
The Maintenance Menu includes maintenance functions to update the monitor and BISx
software, view and restore default monitor settings, and change the language.
To display the Maintenance Menu:
1. Press [MENU] to access the Main Menu.
2. Use the [▲] or [▼] key to highlight [Maintenance]. Press [SELECT]. The
Maintenance Menu appears.
Use of the Maintenance Menu is covered in Section 6, “Diagnostics and Troubleshooting.”
3.6.5 Diagnostics
Contact Aspect Medical Systems, Inc. for instructions on use of the Diagnostic Menu. See
the back cover of this manual for contact information.
To display the Diagnostic Menu:
1. Press [MENU] to access the Main Menu.
2. Use the [▲] or [▼] key to highlight [Diagnostics]. Press [SELECT]. The
Diagnostics Menu appears.
3.6.6 Demo Case
A demonstration case is available for use in familiarizing users with the BIS monitoring
system. This option allows the user to run or stop a demonstration case. When the Demo
Case is selected, the Main Screen appears, with the heading, “Demo Case.”
Note: The Demo Case function uses pre-stored simulated case data. It should not be
used during patient monitoring at any time.
To access Demo Case:
1. Press [MENU] to access the Main Menu.
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SECTION 3 OPERATING THE BIS VIEW MONITORING SYSTEM
2. Use the [▲] or [▼] key to highlight [Demo Case]. Press [SELECT]. The
message, “Press START to begin Demo Case” displays. If the BISx is connected, the
system assumes that a case may be in progress and issues a warning.
3. Press [START] to start the Demo Case, or [HOME] to cancel.
To stop the Demo Case:
1. Press [MENU] to access the Main Menu.
2. Use the [▲] or [▼] key to highlight [Demo Case]. Press [SELECT]. The
messages, “In progress” and “Press STOP to end the Demo Case. Press
CONTINUE to continue the Demo Case” display.
3. Press [STOP] to stop the Demo Case, or [CONTINUE] to continue.
3.7 Ending a Case
When the case has finished:
Disconnect the patient sensor from the PIC:
o Press the release button on the connector and pull the connectors apart.
o DO NOT pull apart by the cable wires.
Remove BIS sensor from patient. Disposable sensors are single-use only.
Be sure to leave the PIC with the monitor so that it is not inadvertently discarded.
If this is the last procedure of the day, press and hold the ON/Standby button for
two seconds before releasing to put the BIS VIEW monitor in Standby mode (a
yellow light displays)
Clean the BIS VIEW system between uses. See Section 5.1.
WARNING:
SHOCK HAZARD: DO NOT ATTEMPT TO DISCONNECT THE
POWER CORD WITH WET HANDS. MAKE CERTAIN THAT
YOUR HANDS ARE CLEAN AND DRY BEFORE TOUCHING
THE POWER CORD.
Note: The BIS VIEW can remain plugged in to A/C power at all times.
3.8 Data Transfer
Three ports on the rear of the BIS VIEW monitor facilitate data transfer. The USB (Type A)
port is used to export data to a removable drive and to update monitor and BISx software.
See the following sections for use of the USB-A port:
3.6.2 “Export Data”
6.1.1 “Software Update”
An RS-232 port is available to connect the monitor to a patient monitoring system using an
ASCII serial port protocol.
The USB (Type B) port is for manufacturer’s use only.
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WARNINGS:
THE USE OF ACCESSORY EQUIPMENT NOT COMPLYING
WITH THE EQUIVALENT SAFETY REQUIREMENTS OF THIS
EQUIPMENT MAY LEAD TO A REDUCED LEVEL OF SAFETY
OF THE RESULTING SYSTEM. CONSIDERATION RELATING
TO THE CHOICE SHALL INCLUDE:
USE OF THE ACCESSORY IN THE PATIENT VICINITY
EVIDENCE THAT THE SAFETY CERTIFICATION OF
THE ACCESSORY HAS BEEN PERFORMED IN
ACCORDANCE TO THE APPROPRIATE IEC 60601-1
AND/OR IEC 60601-1-1 HARMONIZED NATIONAL
STANDARD.
WHEN CONNECTING EXTERNAL EQUIPMENT (e.g., DATA
CAPTURE COMPUTER), THE SYSTEM LEAKAGE CURRENT
MUST BE CHECKED AND MUST BE LESS THAN THE IEC
60601-1-1 LIMIT.
3.9 How the BIS VIEW Monitoring System
Works
A sensor placed on the patient’s head transmits EEG signals to the BISx. The BISx filters
the data, analyzes it for artifact and processes it using digital signal processing techniques,
then sends the data to the monitor for display. The purpose of processing the EEG
waveform data is to extract characteristic features from the complex signal in order to
provide easier pattern recognition of changes over time during the recording.
BIS Range Guidelines are illustrated in Figure 12. A list of the processed variables and a
description of each is provided in Appendix I. These data are displayed on the screen
according to the preferences set by the user in the menu system. Individual screen features
are covered in Sections 3.1 through 3.6
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SECTION 3 OPERATING THE BIS VIEW MONITORING SYSTEM
This chart reflects a general association between clinical state and BIS values.
Ranges are based on results from a multi-center study of the BIS involving the
administration of specific anesthetic agents. BIS values and ranges assume that the
EEG is free of artifacts that can affect its performance. Titration of anesthetics to
BIS range should be dependent upon the individual goals established for each
patient. These goals and associated BIS ranges may vary over time and in the
context of patient status and treatment plan.
Figure 12 - BIS Range Guidelines
3.9.1 Bispectral Index (BIS)
Range = 0 – 100
The Bispectral Index is a continuous processed EEG parameter that correlates to the
patient’s level of hypnosis, where 100=awake and 0=flat line EEG. BIS was designed to
correlate with “hypnotic” clinical endpoints (sedation, lack of awareness, and memory) and
to track changes in the effects of anesthetics on the brain. BIS is displayed as a number in
the upper left corner of the screen and is plotted over time on the BIS Trend Graph. When
signal quality is too low to accurately calculate a BIS value, the BIS number is not displayed.
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SECTION 3 OPERATING THE BIS VIEW MONITORING SYSTEM
The BIS VIEW monitor has several self-checking features to ensure that the system is
operating properly. These include:
System Check
Initiated when the unit is started up, this test makes certain that system software and
hardware components are functioning properly.
Equipment and Connection Checks
The system checks continuously to be sure that the BISx, the PIC, and patient sensors are
operating properly and have not become disconnected.
DSC Self Test (Data Acquisition Test)
The DSC Self Test tests the digital signal acquisition and conversion functions of the BISx.
It is a thorough test of the signal processing chain inside the BISx. It does not test the PIC
or sensor. The DSC Self Test may be initiated in the Advanced Diagnostics Menu (see
Section 6).
Sensor Integrity Check
This test begins each time that a sensor is connected to the PIC. It checks to make certain
that a valid, unexpired sensor is in use. Information on the current sensor can be viewed in
the “System Configuration” Screen.
Impedance Check (Sensor Check)
Electrode impedance is tested when the BISx and PIC are connected and is monitored
continuously unless the user has turned impedance checking off in the menu system.
Caution:
Continuous impedance checking may need to be disabled if the 1
nanoampere 128 Hz impedance check signal interferes with other
equipment, e.g., evoked potential monitors.
Ground Check
A test is performed immediately after every sensor check and at 10-minute intervals during
monitoring to check the status of the patient ground connection. During the test, the EEG
display shows a flat line and the message “GROUND CHECK” displays on the screen
Diagnostics
The BIS VIEW monitor provides diagnostic codes to assist the user in tracing the source of
any problems that may occur. Codes are displayed in the Message Region only if the user has
requested them in the Diagnostic Menu.
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SECTION 3 OPERATING THE BIS VIEW MONITORING SYSTEM
The monitor stores recorded trend data with time and date of acquisition. The duration of
trend data stored is approximately 72 hours.
When the memory is full, the oldest data are automatically erased as new data are stored.
Memory will be retained even if the battery has been discharged and remains when the
monitor is in the power off condition.
3.9.4 Battery Operation
In the event of a power failure or interruption of power during a procedure, the monitor
automatically switches to back-up battery operation. A fully charged battery will provide
approximately 45 minutes of operation. When the system is running on battery, a battery
icon displays above the BIS number, indicating the battery status. When the battery reaches a
low power condition, the monitor beeps and the battery symbol displayed on the screen
changes color from green to orange. In addition, a “Battery Voltage Low” message blinks
continuously in the Message area of the screen.
Battery recharge time is approximately 6 hours. The battery charges continually as long as
the unit is plugged into A/C power.
Caution:
To completely remove power from the unit: put the monitor in Standby
mode, disconnect power cord from the power cord receptacle of the
monitor, then remove the battery from the monitor.
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This “Quick Reference Guide” is intended only as an operating checklist for users already
familiar with the BIS VIEW monitor. Do not proceed unless you have read the “Important
Safety Precautions” (Section 1 of this manual).
BASIC OPERATION
If the BIS VIEW system has already been set up, but has been put into Standby mode (after
a previous surgery, for example), proceed as follows:
1. Verify that all power and other cables are connected properly.
The BISx’s long cable to the BISx port on the monitor.
The Patient Interface Cable to the BISx unit.
2. Press the button in the right corner of the monitor to turn the monitor and BISx on.
The button light will turn from yellow to green. The system will initiate a self-test to
ensure that all equipment is operating properly.
3. Prepare sensor site and place BIS sensor on the patient in accordance with
manufacturer’s instructions.
4. Using the attachment clip, secure the BISx to a convenient location near the patient’s
head.
5. Insert the BIS sensor tab into the PIC connector until fully engaged.
You are now ready to begin monitoring. For detailed operating instructions and software
configuration, read Sections 2 and 3. Current settings may be viewed at any time by viewing
the appropriate menu.
Care and cleaning procedures
Routine maintenance
Technical documentation
Instrument Identification.
5.1 Care and Cleaning
WARNING:
UNIVERSAL PRECAUTIONS SHALL BE OBSERVED TO
PREVENT CONTACT WITH BLOOD OR OTHER
POTENTIALLY INFECTIOUS MATERIALS. PLACE
CONTAMINATED MATERIALS IN REGULATED WASTE
CONTAINER.
Cleaning the Monitor and BISx
Clean any spillage of blood or solutions on either the monitor or BISx as soon as possible.
Dried blood is very difficult to remove. Use lint-free absorbent towels for spill cleanups.
Dampen the towel with detergent and lukewarm water to aid in cleaning. After cleaning,
wipe the PIC connector ends with alcohol and allow to dry completely. Residual moisture
inside the connector may affect BISx performance.
Disinfecting the Monitor and BISx
Use lint-free absorbent towels dampened with a 10% bleach solution, or a commercial
disinfectant (e.g. Lysol® Professional Disinfectant Foam Cleaner Spray or PDI Germicidal
Disposable Wipes).
After cleaning, dry all areas except the monitor display screen (see below) with a lint-free
absorbent paper towel. Wipe the BISx and PIC connector ends with alcohol and allow to dry
completely.
WARNING:
WHENEVER AN EVENT SUCH AS SPILLAGE OF BLOOD OR
SOLUTIONS OCCURS, RE-TEST LEAKAGE CURRENT BEFORE
FURTHER USE.
DO NOT MIX DISINFECTING SOLUTIONS (e.g., BLEACH AND
AMMONIA) AS HAZARDOUS GASES MAY RESULT.
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Caution:
Do not autoclave the BISx or Monitor. Autoclaving will seriously
damage both components.
Avoid liquid ingress to the Patient Interface Cable. Contact of fluids
with the PIC sensor connectors can interfere with PIC performance.
Cleaning the Monitor Display
Clean the monitor display screen with a mild solution of detergent and warm water or a
commercial display screen cleaner, available through personal computer dealers. To avoid
scratching the screen, never use abrasive cleaners.
5.2 Maintenance
The BIS VIEW monitor is designed so that no periodic adjustment or calibration is required.
Suggested routine maintenance includes: periodic checking of cable integrity, system
checkout, checking the battery, and checking leakage current. Instructions on replacing the
battery and power supply are included in this section should replacement be necessary.
Caution:
Service or repairs must be performed only by qualified biomedical
technicians.
5.2.1 Checking Cable Integrity
The BIS VIEW System should be inspected periodically to ensure that all cables are in
working order, with no cuts in electrical insulation. Cables can be flexed during the system
checkout (See Section 5.2.2) to ensure there are no loose wires.
5.2.2 System Checkout
A system checkout should be done periodically to verify that all system components are in
working order. Follow the instructions below for System Checkout.
1. Disconnect the BISx from the monitor.
2. Connect power cable to monitor, plug power plug into appropriate wall outlet.
Verify that the light to the right of the ON/Standby button is yellow.
3. Start up monitor by pressing the ON/Standby button (lower right corner).
Verify that the light to the right of the ON/Standby button is green.
Verify all self-tests complete successfully. (Do not connect or disconnect equipment,
or press keys until the monitor has completed its tests.)
Verify next screen says “Connect BISx.”
4. Connect BISx with PIC to monitor.
Verify that screen says “Connect sensor or cable.”
5. Connect PIC and sensor.
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SECTION 5 PREVENTIVE MAINTENANCE, CARE AND CLEANING
Verify ‘OPERATING ON BATTERY BACKUP’ is displayed.
Verify battery icon displays.
7. Reconnect power cord.
Verify battery icon is not displayed.
Verify ‘OPERATING ON BATTERY BACKUP is not displayed.
8. End of checkout.
5.2.3 Checking the Battery
Check the battery periodically by operating a BIS VIEW monitor that has been disconnected
from the wall socket and that has been charging the battery for at least 6 hours. If the
monitor fails to operate reliably from the battery for approximately 45 minutes, battery
replacement is required.
WARNING:
ELECTRICAL SHOCK HAZARD: DO NOT REMOVE MONITOR
COVERS DURING OPERATION OR WHILE POWER IS
CONNECTED TO MONITOR.
LEAKAGE CURRENT MUST BE CHECKED WHENEVER
INSTRUMENT CASE IS OPENED BY A QUALIFIED
BIOMEDICAL ENGINEERING TECHNICIAN.
Caution:
Check the battery periodically by operating a BIS VIEW monitor that
has been disconnected from the wall socket and that has been charged
to full capacity (at least 6 hours of charge time). After long periods of
storage (e.g., more than 1 month) it may be necessary to cycle (charge,
then discharge) the battery a few times to get full charge capacity. If
the BIS VIEW monitor fails to operate reliably from the battery for
approximately 45 minutes, battery replacement is required.
The BIS VIEW monitor contains an internal lithium ion battery. The
battery must be removed by a qualified service technician and
disposed of or recycled in accordance with the national laws of the
country. Contact Aspect Medical Systems, Inc. or the local distributor
for a replacement battery: Aspect part number 186-0208.
Note: The BIS VIEW may not power up entirely if battery power is low. If that should
occur, connect unit to wall power and press the Reset button. Refer to Section6.4 “Using the
Reset Button.”
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SECTION 5 PREVENTIVE MAINTENANCE, CARE AND CLEANING
1. Unplug A/C line cord from the BIS VIEW monitor.
2. Lay the monitor screen-side-down on a scratch-free work surface so that the
Battery/Power Supply cover is accessible.
3. Remove 4 screws from the Battery/Power Supply cover and remove the cover. The
power supply is located inside the cover.
4. Unplug (squeeze and pull to remove) the battery and the power supply connectors.
5. Remove screws from the power supply bracket and remove the old power supply.
6. Insert new power supply into the cover, lining up the A/C power receptacle with the
cutout in the cover.
7. Reconnect the power supply.
8. Reconnect the battery.
9. Replace the cover and 4 screws (hand-tighten only) and reconnect the A/C power
cord.
5.2.6 Checking Leakage Current
Leakage current is a primary indicator of electrical shock hazard to personnel making contact
with any exposed outer surface of the equipment. Each BIS VIEW monitor is carefully
checked at the factory to verify that leakage current meets the UL60601-1 and IEC60601-1-1
safety standards.
The BIS VIEW monitor should be checked routinely for leakage current at least once
a year.
Always have the leakage current checked after a saline or blood spill, or immediately after a
major surge in the house electrical system and after every time the monitor case has been
opened.
Keep in mind that liquids such as saline and Ringer’s as well as blood are all excellent
conductors of electricity. Avoid touching any part of the system with wet hands. Always
work with clean, dry hands.
WARNING:
ELECTRICAL SHOCK HAZARD: THE MANUFACTURER’S
INSPECTION OF THIS APPARATUS VERIFIED THAT THE
GROUND LEAKAGE CURRENT AND THE PATIENT SAFETY
CURRENT WERE LESS THAN THE SPECIFIED LIMITS
ESTABLISHED BY THE APPLICABLE SAFETY STANDARDS. AS
A MATTER OF SAFE PRACTICE, THE INSTITUTION SHOULD
CONDUCT PERIODIC TESTS TO VERIFY THESE CURRENTS.
WHENEVER AN EVENT SUCH AS SPILLAGE OF BLOOD OR
SOLUTIONS OCCURS, RE-TEST LEAKAGE CURRENT BEFORE
FURTHER USE.
The BIS VIEW Monitoring unit does not contain a
Since the exposed metal parts on the rear of the BIS VIEW Monitor (Communication serial
port and USB ports) are separated from live parts by double insulation, a ground continuity
test does not apply to these parts. The components of the BIS VIEW Monitor that are
connected to protective earth are contained within its enclosure and are not accessible to the
Protective Earth Stud (GND Stud)
.
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user of the equipment. However, as stated in the operating manual, an enclosure leakage
current test should be performed on the exposed metal parts, and should be checked
periodically to ensure that the integrity of the equipment’s insulation system is maintained.
The leakage current test should include measurement of ground wire leakage, enclosure
leakage, and patient leakage.
Ground wire leakage typically can be performed automatically by connecting the A/C power
cord of the BIS VIEW Monitor into a safety tester. The enclosure leakage may be measured
by any safety test equipment that is capable of connecting to isolated conductive parts and
measuring the current from those parts to earth. The patient connection terminals of many
safety testers can be used for this purpose. The patient leakage current can be measured by
connecting the patient connection terminals of a safety tester to the patient input connection
(the PIC) of the BISx.
The BIS VIEW Monitor has been certified by Underwriters Laboratories to comply with
IEC60601-1, as indicated on the labeling on the rear of the monitor.
5.3 Technical Documentation
The BIS VIEW Monitoring System is designed and manufactured using state-of-the-art
components and manufacturing processes. Field repair or customer repairs are therefore
limited by design to replacement of major component assemblies such as: the Patient
Interface Cable (PIC), BISx, the BIS VIEW Monitor itself, the battery, power supply and
pole clamp. Periodic software updates are possible via the USB-A port.
This BIS VIEW Operating Manual contains the maintenance and diagnostic troubleshooting
information necessary for customer qualified technical personnel to test and replace those
parts of the equipment that are replaceable by the customer. Aspect does not authorize nor
provide information to service or repair the internal components of the BIS VIEW monitor
or the BISx.
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Monitor identification information is permanently marked on the rear panel. This
information includes instrument model and serial numbers, patent numbers, power ratings,
cautions, and the Aspect Medical Systems’ shipping address.
BISx
The BISx identification information is permanently marked on the rear panel of the BISx.
The information includes instrument model and serial numbers, patent numbers, cautions,
and the Aspect Medical Systems’ shipping address.
Software Revision Numbers
To view the software revision numbers and other system information, go to:
MENU>Diagnostics> System Configuration. See Section 6.2.3 “System Configuration
Information” for instructions.
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The Maintenance Menu
The Diagnostic Menu
BIS VIEW monitor messages and appropriate operator actions
Resetting the system
What to do if the BIS VIEW system requires service
6.1 Maintenance
The maintenance menu contains three options:
• Software Update – to update the monitor and BISx software
• Default Settings – to return the monitor to the original factory default values
• Language – to set the language that is displayed on the screens
To display the Maintenance Menu:
1. Press [MENU] to access the Main Menu.
2. Use the [▲] or [▼] key to highlight [Maintenance]. Press [SELECT]. The
Maintenance Menu appears.
6.1.1 Software Update
The BIS VIEW system software may be updated by attaching a removable drive containing
the update to the USB port on the rear of the monitor. The progress of the update displays
on the monitor screen. When the update is complete, the user is asked to reset the system.
Notes:
The monitor must be connected to A/C power to perform the update.
When software is updated, all monitor configuration settings will be lost.
Additionally, previously recorded data may be lost. Therefore, configuration
settings and previous data should be recorded before the software update is
performed.
Follow these steps to perform the update:
Caution:
Do not disconnect the BISx during the software update.
4. Press [RESTORE]. The factory values become the monitor’s active settings.
5. Press [SETTINGS] to go to the Monitor Settings screen.
6. Press [SAVE ACTIVE] to save the factory settings to the Saved Settings list.
7. Press [HOME] to exit.
For more information on Active and Saved Settings, see Section 3.6.3.5 “Settings: Active and
Saved Monitor Settings.”
6.1.3 Language
The BIS VIEW monitor is designed to support multiple languages, including: English,
French, German, Italian, Spanish, Portuguese, Swedish and Dutch. If the screen does not
display the desired language, follow these steps:
To change the language:
1. Press [MENU] to access the Main Menu. (The MENU key is the soft key on the far
right.)
2. Use the [▲] or [▼] key to highlight [Maintenance]. (Maintenance is the fourth
selection on the list). Press [SELECT]. The Maintenance Menu appears.
3. Highlight [Language]. (Language is the third selection on the list.) Press
[SELECT]. The Language Menu appears.
4. Use the [-] or [+] key to scroll through the available languages until the desired
language displays. Press [SELECT].
To permanently save this change, go to MENU>Setup>Settings and press [SAVE ACTIVE]. See instructions in Section 2.6.3 “Save Settings.”
6.2 Diagnostics
The Diagnostics Menu contains functions to test and maintain the BIS VIEW system. If you
should experience a problem with the BIS VIEW system, Aspect’s Technical Service
Department will direct you in using these functions. To contact Aspect, please refer to the
back cover of this manual.
The Diagnostics Menu options are:
• Impedance Checking (ON or OFF)
• Diagnostic Codes (ON or OFF)
• System Configuration Information
• Advanced Diagnostics
6.2.1 Impedance Checking
The BIS VIEW system continually checks impedance levels during a procedure by
generating a 128 Hz test signal. Occasionally this signal may interfere with other equipment.
If this becomes a problem, you may turn off the continuous impedance checking.
Impedance levels will still be tested at startup, but once they pass, they will not be tested
again until a new case is begun. (Note that you may test them at any time by pressing the
“Sensor Check” touch key.)
To turn the Impedance Checking OFF:
1. Press [MENU]. The Main Menu displays.
2. Use the [▲] or [▼] key to highlight [Diagnostics]. Press [SELECT]. The
Turning off continuous impedance checking will not be saved by the “Save Settings” feature.
The next time the monitor is started up or a new sensor is connected, the monitor will reenable continuous impedance checking.
If you are experiencing problems with the BIS VIEW system, Aspect’s Technical Service
may direct you to turn the Diagnostic Codes ON so that numeric diagnostic values will be
displayed in the Message Region of the screen.
To turn ON the Diagnostics Codes:
1. Press [MENU]. The Main Menu displays.
2. Use the [▲] or [▼] key to highlight [Diagnostics]. Press [SELECT]. The
Diagnostics Menu displays.
3. Highlight [Diagnostic Codes]. Press [SELECT].
4. Highlight [On]. Press [SELECT].
5. Press [HOME] to exit.
6.2.3 System Configuration Information
This selection allows the user to view the current configuration of the system, including the
monitor, BISx, and sensor. It also shows the revision of each language installed in the
monitor.
To view System Configuration Information:
1. Press [MENU]. The Main Menu displays.
2. Use the [▲] or [▼] key to highlight [Diagnostics]. Press [SELECT]. The
4. Use the [MORE] key to view the next screen, or the [HOME] key to exit.
6.2.4 Advanced Diagnostics
The Advanced Diagnostics Menu contains system information and test procedures for the
monitor and the BISx. Contact Aspect Medical Systems, Inc. Technical Service Department
for assistance on using these functions. Contact information is located on the back page of
this manual.
When an alarm is triggered, a message appears in the Message Region of the screen. Possible
messages and the recommended operator actions are listed below. It is a good idea to write
down the exact status message number when it occurs and have that information available if
you should need service. See Section 6.5 “What to do if the BIS VIEW Monitoring System
Requires Service.”
BIS VIEW Messages and Operator Actions
Status Messages: Causes: Corrective Actions:
None (screen is blank) Monitor has not completed
its power ON diagnostics
tests.
Connect BISx 1. BISx disconnected.
2. Defective BISx cable.
3. Defective BISx.
4. Defective monitor.
Re-prep Sensor [0013] 1. Incorrect sensor
application.
2. Poor sensor
connections.
3. Sensor Check fails
4. Defective PIC.
5. Defective BISx.
1. Monitor may take up to
three minutes to initialize
trend memory. Do not
disconnect equipment or
press keys during this time.
The Signal Quality is less
than half of the level
desirable for optimal
monitoring conditions. This
may occur as a result of
artifact such as those
generated from motion or
eyeblinks.
1. Artifact, such as those
generated by motion or
eyeblinks, is causing loss
of EEG recognition.
2. EMG Bar indicates
electrical activity that
may be interfering with
EEG recognition.
3. PIC is defective.
4. BISx is defective.
Note: This message may
occur as a result of artifact
(non-EEG signal) such as
those generated from
motion (patient movement
or eyeblinks) or the
presence of electro-cautery,
warming blankets, or other
devices.
1. If ARTIFACT label
appears above the EEG
waveform box, attempt to
identify and eliminate
artifact source.
Data unavailable due
to poor signal quality
[0028]
BIS Out of Target
Range
Low [0029]
High [0030]
Isoelectric EEG
Detected [0031]
The signal quality is too low
to accurately calculate a BIS
value. The BIS value and
other trend variables that
are adversely affected by
artifact are not displayed
1. Artifact, such as those
generated by motion or
eyeblinks, is causing loss
of EEG recognition.
2. EMG Bar indicates
electrical activity that
may be interfering with
EEG recognition.
3. PIC is defective.
4. BISx is defective.
Note: This message may
occur as a result of artifact
(non-EEG signal) such as
those generated from
motion (patient movement
or eyeblinks) or the
presence of electro-cautery,
warming blankets, or other
devices.
The BIS has fallen outside
the target range set by the
user.
No discernible EEG activity
is detected for sixty-three
seconds; SR=100.
Note: This message
notifies user of a flatline
EEG. This is a normal
condition when Sensor
Simulator or Test Sensor is
connected.
1. If ARTIFACT label
appears above the EEG
waveform box, attempt to
identify and eliminate
artifact source.
The AC power has been lost
and the monitor is running
on the battery. The battery
keeps the monitor operating
for approximately 45
minutes (when the battery is
fully charged).
There are only a few
minutes of battery life left.
Problem is detected relating
to sensor ground element.
Sensor is using too much
current.
Sensor has been connected
and disconnected too many
times.
connection between
sensor and PIC.
2. An incorrect or
defective sensor has
been connected to the
PIC.
3. Defective PIC.
4. Defective BISx.
1. Poor connection
between BISx monitor
cable and monitor.
2. Defective BISx.
3. Defective monitor.
1. Restore the AC power.
2. Verify power cord.
3. Verify AC fuses are good.
4. Replace power supply.
Restore AC power to avoid
automatic shutdown.
1. Disconnect and examine
sensor connection. Clean
any contamination present.
2. Replace sensor if necessary.
3. Replace PIC.
4. Replace BISx.
1. Disconnect and examine
sensor connection. Clean
any contamination.
2. Replace sensor if necessary.
3. Replace PIC.
4. Replace BISx.
Replace the sensor.
1. Connect/clean connection
between sensor and PIC.
2. Replace the sensor.
3. Replace the PIC.
4. Replace the BISx.
1. Unplug BISx from monitor
and plug in again. If
necessary, unplug power
cord and plug in again to
re-start monitor.
The Reset button is located on the back panel of the monitor. If necessary, the software can
be reset by accessing this button with a ballpoint pen, paper clip or other similar tool.
6.5 What to do if the BIS VIEW Monitoring
System Requires Service
Contact your local distributor to determine where servicing will occur. Aspect’s Technical
Service Department will assist you in isolating the problem to a specific component. Have
the equipment available when you call so that you can supply the appropriate serial numbers
and a detailed description of the problem. If it becomes necessary to return a unit directly to
Aspect Medical Systems, follow the procedure below:
Contact Aspect’s Technical Service Department to obtain a Returned Materials
Authorization (RMA) number. (The Technical Service phone number is printed on
the back cover of this manual.) The RMA number must appear on the outside of the
shipping container.
Use the original shipping container, if available, or equivalent packaging to protect
the product. Seal the package with plastic shipping tape rather than masking tape.
Mark shipping or storage container FRAGILE.
If the repair or replacement is covered by the warranty, Aspect will bear the costs of
shipping the repaired or replacement product back to the user. All other shipping
costs shall be paid by the user.
Impedance Checking
Diagnostic Codes
System Configuration
Advanced Diagnostics
DSC Self Test
Monitor Error Log
BISx Connection History
Clear Trend Data
View or Restore Factory Defaults
English
French
German
Portuguese
Spanish
Dutch
Italian
Swedish
On/Off
On/Off
7.3 Processed EEG Variables
Variable Name Description Range
Bispectral Index
(BIS)
Signal Quality
Indicator (SQI)
EMG The absolute power in the 70-110 Hz range. The
Suppression Ratio
(SR)
The output from a multivariate discriminate
analysis that quantifies the overall bispectral
properties (frequency, power, and phase)
throughout the entire frequency range.
A measure of the signal quality for the EEG
channel source(s) that is calculated based on
impedance data, artifact, and other variables.
Not affected by Suppression Ratio.
power value is reported in dB with respect to
2
0.0001V
off for this variable.
The percentage of epochs in the past 63 seconds
in which the EEG signal is considered
suppressed.
. All the artifact detection is turned
0 – 100
0 – 100
20 points per bar
30 – 80 dB Trend
30 – 55 dB Bar
Graph
0 – 100 %
7-3
SECTION 7 APPENDIX I: MENUS, PROCESSED VARIABLES, AND GLOSSARY
The maximum absolute value reached by a voltage or current waveform.
Artifact
An electrical waveform with characteristics that arise from sources other than the heart or
brain.
Bispectral Index
The Bispectral Index is a continuous processed EEG parameter that correlates to the
patient’s level of hypnosis, where 100=awake and 0=flat line EEG. BIS was designed to
correlate with “hypnotic” clinical endpoints (sedation, lack of awareness, and memory) and
to track changes in the effects of anesthetics on the brain.
BIS Sensor
A single patient use, disposable, pre-gelled 4 electrode array that is applied directly to the
patient’s forehead to record electrophysiological signals. The BIS sensor tab contains an
electric smart card memory device that stores configuration and identification information.
BISx
The BISx is the small unit that attaches to the BIS VIEW monitor via its own monitor cable,
and attaches to a BIS sensor via the Patient Interface Cable (PIC). It acquires and processes
EEG information and sends it to the monitor for display.
Electroencephalogram (EEG)
A visual representation of the rhythmic fluctuations of electric potential between parts of the
brain (brain waves).
Electromyelogram (EMG)
A visual representation of the power (in decibels) in the frequency range 70 – 110 Hz. This
frequency range contains power from muscle activity as well as power from other highfrequency artifacts.
Epoch
A short interval of arbitrarily defined length.
Impedance
The measure of the quality of the sensor electrodes’ contact. Impedance is the amount of
resistance that the electrical current encounters. Impedance is continuously monitored to
ensure adequate signal quality.
Isoelectric EEG
Electrocerebral silence (flat EEG) or no significant electrical activity in the brain.
Specifically, periods >240 msecs during which the electroencephalographic voltage did not
exceed 5 [mu]V). A long period (>1 minute) of isoelectric EEG leads to suppression,
indicated by a high suppression ratio and the message “Isoelectric EEG.”
7-4
SECTION 7 APPENDIX I: MENUS, PROCESSED VARIABLES, AND GLOSSARY
The cable that connects the BIS sensor to the BISx.
Signal Quality Indicator (SQI)
A measure of the signal quality for the EEG channel source that is calculated based on
impedance data, artifact, and other variables.
Smoothing Rate
The rate over which the BIS value is averaged.
Suppression Ratio (SR)
A calculated parameter that indicates when an isoelectric (flatline) condition may exist.
Suppression ratio is the percentage of time over the last 63-second period that the signal is
considered to be in the suppressed state (isoelectric). When SR equals 100, it means that
during 100% of the last 63 second time period, no significant amount of electrical activity
was detected.
7-5
SECTION 7 APPENDIX I: MENUS, PROCESSED VARIABLES, AND GLOSSARY
Type of Protection against Electric Shock of the System:
Class 1: Equipment in which protection against electric shock does not rely on basic
insulation only, but which includes an additional safety precaution. Means are provided for
the connection of the equipment to the protective earth conductor in the fixed wiring of the
installation in such a way that accessible metal parts cannot become live in the event of a
failure of the basic insulation.
Degree of Protection against Electric Shock of the System:
Type BF: Equipment providing a degree of protection against electric shock regarding
allowable leakage currents and reliability of the protective earth ground connection with an
F-type applied part. An F-type applied part is isolated from all other parts of the equipment
to such a degree that the patient leakage current allowable in single fault condition is not
exceeded when a voltage equal to 1.1 times the highest rated AC supply voltage is applied
between the applied part and earth. The circuitry inside the BIS VIEW monitor is isolated
from the mains in accordance with IEC60601-1. Patient isolation is accomplished within the
BISx.
Degree of Protection against effects of Cardiac Defibrillation:
The BIS VIEW system provides protection for the operator and patient during cardiac
defibrillation. This protection is achieved via the isolation barrier within the BISx.
Degree of Protection against the Ingress of Water:
Monitor degree of protection rating: IPX2 (ingress of water vertically dripping).
BISx degree of protection rating: IPX4 (splash proof).
Mode of Operation of the System:
Continuous: Operation under normal load for a normal period without exceeding the
specified limits of temperature.
Classification:
MEDICAL ELECTRONIC EQUIPMENT
CLASSIFIED BY UNDERWRITERS LABORATORIES INC. WITH RESPECT TO
ELECTRIC SHOCK, FIRE AND MECHANICAL HAZARDS ONLY IN
ACCORDANCE WITH UL 60601-1, IEC 60601-1, IEC 60601-2-26,
The BIS VIEW Monitoring System requires special precautions regarding Electromagnetic
Compatibility (EMC). The BIS VIEW system must be set up and put into service according
to the EMC guidance information provided in this section.
Portable and mobile radio frequency communications equipment can affect the operation of
the BIS VIEW Monitoring System. Refer to the EMC guidance information and Cautions
provided in this manual.
8.2.1 Accessories
The BIS VIEW Monitoring System complies with the requirements of IEC 60601-1-2:2001
when used with the accessories listed in Section 2 of the Operating Manual. In addition, the
BIS VIEW system must be used only with the power cord provided.
When using a removable drive to load new versions of software into the BIS VIEW
monitor, no cables or other accessories should be connected to the device. The BIS VIEW
monitor should be connected to the mains through the appropriate power cord, and the
removable drive should be plugged into the USB-A connector on the back of the monitor.
Caution:
Using accessories other than those specified may result in increased
electromagnetic emissions or decreased electromagnetic immunity of
the BIS VIEW Monitoring System.
This section provides the appropriate specification tables for the BIS VIEW Monitoring
System as per IEC 60601-1-2.
Guidance and Manufacturer’s Declaration - Electromagnetic Emissions
The BIS VIEW Monitoring System is intended for use in the electromagnetic environment
specified below. The customer or user of the BIS VIEW system should assure that it is used
in such an environment
Emissions test Compliance Electromagnetic
Environment - Guidance
RF Emissions
CISPR 11
RF Emissions
CISPR 11
Harmonic Emissions
IEC 61000-3-2
Voltage Fluctuations/
Flicker Emissions
IEC 61000-3-3
The BIS VIEW system should not be used adjacent to or stacked with
other equipment. If adjacent or stacked use is necessary, the BIS
VIEW Monitor should be observed to verify normal operation in the
configuration in which it will be used.
Group 1 The BIS VIEW system uses
RF energy only for its internal
function. Therefore, its RF
emissions are very low and
are not likely to cause any
interference in nearby
electronic equipment.
Class A
Class A
Complies
Caution:
The BIS VIEW system is
suitable for use in all
establishments, other than
domestic and those directly
connected to the public lowvoltage power supply network
that supplies buildings used
for domestic purposes.
Guidance and Manufacturer’s Declaration - Electromagnetic Immunity
The BIS VIEW system is intended for use in the electromagnetic environment specified
below. The customer or user of the BIS VIEW system should assure that it is used in such
an environment
Immunity test IEC 60601 test
level
Electrostatic
discharge (ESD)
IEC 61000-4-2
Electrical fast
transient/burst
IEC 61000-4-4
Surge
IEC 61000-4-5
Voltage dips,
short interruptions
and voltage
variations on
power supply
input lines.
IEC 61000-4-11
Power frequency
(50/60 Hz)
magnetic field.
IEC 61000-4-8
NOTE: UT is the AC mains voltage prior to the application of the test level.
±6 kV contact
±8 kV air
±2 kV for power
supply lines.
±1 kV for
input/output
lines.
±1 kV differential
mode
±2 kV common
mode
<5% UT (>95%
dip in UT)
for 0.5 cycle.
40% UT (60%
dip in UT)
for 5 cycles.
70% UT (30%
dip in UT)
for 25 cycles.
<5% UT (>95%
dip in UT)
for 5 sec.
3 A/m 3 A/m Power frequency magnetic
Compliance
level
±6 kV contact
±8 kV air
±2 kV for power
supply lines.
±1 kV for
input/output
lines.
±1 kV differential
mode
±2 kV common
mode
<5% UT (>95%
dip in UT)
for 0.5 cycle.
40% UT (60% dip
in UT)
for 5 cycles.
70% UT (30% dip
in UT)
for 25 cycles.
<5% UT (>95%
dip in UT)
for 5 sec.
Electromagnetic
environment - guidance
Floors should be wood,
concrete or ceramic tile. If
floors are covered with
synthetic material, the relative
humidity should be at least
30%.
Mains power quality should
be that of a typical
commercial or hospital
environment.
Mains power quality should
be that of a typical hospital
environment.
Mains power quality should
be that of a typical hospital
environment. If the user of
the BIS VIEW system
requires continued operation
during power mains
interruptions longer than 45
minutes, it is recommended
that the BIS VIEW Monitor
be powered by an
uninterruptible power supply.
fields should be at levels
characteristic of typical
location in a typical hospital
environment.
Guidance and Manufacturer’s Declaration - Electromagnetic Immunity
The BIS VIEW Monitoring System is intended for use in the electromagnetic environment
specified below. The customer or user of the BIS VIEW system should assure that it is used
in such an environment.
Immunity
Test
IEC 60601
Test Level
Compliance
Level
Electromagnetic Environment Guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Vrms
150 kHz to 80
MHz
3 V/m
80 MHz to 2.5
GHz
3 V
3 V/m
Portable and mobile RF
communications equipment should be
used no closer to any part of the BIS
VIEW system, including cables, than
the recommended separation distance
calculated from the equation
applicable to the frequency of the
transmitter.
Recommended separation distance
d = 1.2
d = 1.2
d = 2.3
where P is the maximum output power
rating of the transmitter in watts
according to the transmitter
manufacturer and d is the
recommended separation distance in
meters (m).
Field strengths from fixed RF
transmitters, as determined by
electromagnetic site surveya, should be
less than the compliance level in each
frequency range.b Interference may
occur in the vicinity of equipment
marked with the following
symbol:
NOTE 1: At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.
a
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless)
telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV
broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic
environment due to fixed RF transmitters, an electromagnetic site survey should be
considered. If the measured field strength in the location in which the BIS VIEW system is
used exceeds the applicable RF compliance level above, the BIS VIEW system should be
observed to verify normal operation. If abnormal performance is observed, additional
measures may by be necessary, such as reorienting or relocating the BIS VIEW system
b
Over the frequency ranges 150kHz to 80 MHz field strength should be less than 3 V/m.
Recommended Separation Distances between Portable and Mobile RF
Communications Equipment and the BIS VIEW Monitor
The BIS VIEW Monitoring System is intended for use in the electromagnetic environment
in which radiated RF disturbances are controlled. The customer or user of the BIS VIEW
system can help prevent electromagnetic interference by maintaining a minimum distance
between portable and mobile RF communications equipment (transmitters) and the BIS
VIEW system as recommended below, according to the maximum output power of the
communications equipment.
For transmitters rated at a maximum output power not listed above, the recommended
separation distance d in meters (m) can be determined using the equation applicable to the
frequency of the transmitter, where P is the maximum output power rating of the transmitter
in watts (W) according to the transmitter manufacturer.
NOTE 1: At 80 MHz and 800 MHz, the separation distance for the higher frequency ranges
applies.
NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects, and people.
Separation distance according to frequency of
transmitter
Aspect warrants to the initial Purchaser that the BIS VIEW monitor and the BISx
(“Warranted Product”) will be free from defects in workmanship or materials, when given
normal, proper, and intended usage for a period of one year (“Warranty Period”) from the
date of its initial shipment to Purchaser. Excluded from this warranty are expendable
components and supply items such as, but not limited to, electrodes, cables, and prep
solutions. Aspect’s obligations under this warranty are to repair or replace any Warranted
Product (or part thereof) that Aspect reasonably determines to be covered by this warranty
and to be defective in workmanship or materials provided that the Purchaser has given
notice of such warranty claim within the Warranty Period and the Warranted Product is
returned to the factory with freight prepaid. Repair or replacement of Products under this
warranty does not extend the Warranty Period.
To request repair or replacement under this warranty, Purchaser should contact Aspect
directly (see contact information on the back cover of this manual). Aspect will authorize
Purchaser to return the Warranted Product (or part thereof) to Aspect. Aspect shall
determine whether to repair or replace Products and parts covered by this warranty and all
Products or parts replaced shall become Aspect’s property. In the course of warranty service,
Aspect may but shall not be required to make engineering improvements to the Warranted
Product or part thereof. If Aspect reasonably determines that a repair or replacement is
covered by the warranty, Aspect shall bear the costs of shipping the repaired or replacement
Product to Purchaser. All other shipping costs shall be paid by Purchaser. Risk of loss or
damage during shipments under this warranty shall be borne by the party shipping the
Product. Products shipped by Purchaser under this warranty shall be packaged in the original
shipping container or equivalent packaging to protect the Product. If Purchaser ships a
Product to Aspect in unsuitable packaging, any physical damage present in the Product on
receipt by Aspect (and not previously reported) will be presumed to have occurred in transit
and will be the responsibility of Purchaser.
This warranty does not extend to any Warranted Products or part thereof: that have been
subject to misuse, neglect, or accident; that have been damaged by causes external to the
Warranted Product, including but not limited to failure of or faulty electrical power; that
have been used in violation of Aspect’s instructions; that have been affixed to any
nonstandard accessory attachment; on which the serial number has been removed or made
illegible; that have been modified by anyone other than Aspect; or that have been
disassembled, serviced, or reassembled by anyone other than Aspect, unless authorized by
Aspect. Aspect shall have no obligation to make repairs, replacements, or corrections which
result, in whole or in part, from normal wear and tear. Aspect makes no warranty (a) with
respect to any products that are not Warranted Products, (b) with respect to any products
purchased from a person other than Aspect or an Aspect-authorized distributor or (c) with
respect to any product sold under a brand name other than Aspect Medical Systems, Inc.
THIS WARRANTY IS THE SOLE AND EXCLUSIVE WARRANTY FOR ASPECT’S
PRODUCTS, EXTENDS ONLY TO THE PURCHASER, AND IS EXPRESSLY IN
LIEU OF ANY OTHER EXPRESS OR IMPLIED WARRANTIES INCLUDING
WITHOUT LIMITATION ANY WARRANTY AS TO MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE. ASPECT’S MAXIMUM LIABILITY
ARISING OUT OF THE SALE OF THE PRODUCTS OR THEIR USE, WHETHER
BASED ON WARRANTY, CONTRACT, TORT, OR OTHERWISE, SHALL NOT
EXCEED THE ACTUAL PAYMENTS RECEIVED BY ASPECT IN CONNECTION
THEREWITH. ASPECT SHALL NOT BE LIABLE FOR ANY INCIDENTAL,
SPECIAL, OR CONSEQUENTIAL LOSS, DAMAGE OR EXPENSE (INCLUDING
WITHOUT LIMITATION LOST PROFITS) DIRECTLY OR INDIRECTLY ARISING
FROM THE SALE, INABILITY TO SELL, USE OR LOSS OF USE OF ANY
PRODUCT. EXCEPT AS SET FORTH HEREIN, ALL PRODUCTS ARE SUPPLIED
“AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED.
The computer software (“Licensed Software”) loaded on the BIS VIEW monitor (“System”)
is licensed, not sold, to you for use only under the terms of this license. Aspect Medical
Systems, Inc. (“Aspect”) reserves any rights not expressly granted to you. You own the
System, but Aspect retains all ownership rights and title to the Licensed Software itself.
1. LICENSE: You are hereby granted the non-exclusive right to use the Licensed
Software solely with the specific System on which the Licensed Software was provided
to you.
2. RESTRICTIONS: You shall not transfer the Licensed Software in any manner from
the System to any other computer or system without the prior written consent of Aspect.
You shall not distribute copies of the Licensed Software or its related documentation to
others. You shall not modify or translate the Licensed Software or its related
documentation without the prior written consent of Aspect. The Licensed Software
contains trade secrets and to protect them you may not decompile, reverse engineer,
disassemble, or otherwise reduce the Licensed Software to a human-perceivable form. If
you transfer the System, you have the right to transfer the Licensed Software provided
that the transferee agrees to be bound by the terms and conditions of this License
Agreement.
3. TERMINATION: This License remains effective until terminated. This License will
terminate automatically without notice from Aspect if you fail to comply with any term
or provision of this License. Upon termination of this License, you may not make any
further use of the Licensed Software.
4. LIMITED WARRANTY: THE LICENSED SOFTWARE IS PROVIDED “AS IS”
WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED,
INCLUDING WITHOUT LIMITATION ANY WARRANTY WITH RESPECT TO
ITS MERCHANTABILITY OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
ASPECT DOES NOT WARRANT THAT THE FUNCTIONS CONTAINED IN
THE LICENSED SOFTWARE WILL MEET YOUR REQUIREMENTS OR THAT
THE OPERATION OF THE LICENSED SOFTWARE WILL BE
UNINTERRUPTED OR ERROR FREE OR THAT SUCH ERRORS IN THE
LICENSED SOFTWARE WILL BE CORRECTED.
5. LIMITATION OF REMEDIES AND DAMAGES: ASPECT’S ENTIRE
LIABILITY TO YOU FOR ACTUAL DAMAGES FOR ANY CAUSE
WHATSOEVER, AND REGARDLESS OF THE FORM OF THE ACTION, AND
YOUR EXCLUSIVE REMEDY SHALL BE LIMITED TO THE MONEY PAID
FOR THE SYSTEM, WHICH INCLUDED THE LICENSED SOFTWARE.
IN NO EVENT SHALL ASPECT BE LIABLE TO YOU ( I ) FOR ANY INCIDENTAL,
CONSEQUENTIAL, OR INDIRECT DAMAGES (INCLUDING DAMAGES FOR
LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS
INFORMATION, AND THE LIKE) ARISING OUT OF THE USE OF OR
INABILITY TO USE ANY LICENSED SOFTWARE EVEN IF ASPECT OR ANY
AUTHORIZED ASPECT REPRESENTATIVE HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES, OR (ii) FOR ANY CLAIM BY ANY OTHER
PARTY.
6. GENERAL: This License Agreement will be construed under the laws of the
Commonwealth of Massachusetts. If any provision of this License Agreement shall be
held by a court of competent jurisdiction to be contrary to law, that provision will be
enforced to the maximum extent permissible, and the remaining provisions of this
Agreement will remain in full force and effect.
Should you have any questions concerning this License Agreement, you may contact Aspect
by writing to Aspect Medical Systems, Technical Service, at the address listed on the back
cover of this manual.
THIS LICENSE AGREEMENT IS THE COMPLETE AND EXCLUSIVE
STATEMENT OF THE AGREEMENT BETWEEN YOU AND ASPECT AND
SUPERSEDES ANY PROPOSAL OR PRIOR AGREEMENT, ORAL OR WRITTEN,
AND ANY OTHER COMMUNICATIONS BETWEEN YOU AND ASPECT
RELATING TO THE SUBJECT MATTER OF THIS AGREEMENT.
8-14
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