Novametrix VentCheck 101 User Manual
HANDHELD RESPIRATORY MECHANICS MONITOR
User’s Manual
VentCheck
Model 101
October 30, 1997
Catalog No. 6800-23-02
Copyright ©1997. Novametrix Medical Systems Inc.
5 Technology Drive, Wallingford, Connecticut, U.S.A.
06492. All rights reserved.
About this manual
This manual is written for clinical personnel using the VENT✔ (VentCheck)
Handheld Respiratory Mechanics Monitor, Model 101, and the flow sensors and
accessories intended for use with the monitor.
This document contains information which is proprietary and the property of
Novametrix Medical Systems Inc., and may not be reproduced, stored in a
retrieval system, translated, transcribed, or transmitted, in any form, or by any
means, without the prior explicit written permission of Novametrix Medical
Systems Inc.
Novametrix reserves the right to change specifications without notice. VentCheck
and the VENT✔ logo are trademarks of Novametrix Medical Systems Inc.
VENT
Per requirements of IEC 601-1, VENT✔ is classified as class II equipment,
internally powered, with type BF applied part, and an enclosure protection rating
of IPX1.
Transport/Storage: -10 to +55° C (14-131° F), 10-95% R.H. non-condensing
Operating Conditions: +10 to +40° C (50-104° F), 10-90% R.H. non-condensing
The VENT✔ (VentCheck) Handheld Respiratory Mechanics Monitor, Model 101,
contains no user serviceable parts. Refer servicing to qualified service personnel.
(See Accessories on page 21 for listings of the Service Manual and Service Test
kit for use by technical personnel.)
✔ Technical Description
Declaration of Conformity with European Union Directive
The Authorized Representative for Novametrix equipment is:
D.R.M. Green
European Compliance Services Limited,
Oakdene House,
Oak Road,
Watchfiled
Swindon, Wilts SN6 8TD
United Kingdom
Manual Revision History
31-Jul-97 Release at Rev. 00.
17-Oct-97 Rev. 01. Including software release version 1.1.
30-Oct-97 Rev. 02. Including software release 1.2.
2 VENT✔ Users Manual Rev. 02
Table of Contents
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Indications for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Contra-indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Principles of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Patient Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Preparation for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Getting Acquainted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Keypad Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Power supply options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Battery Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
External Battery Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Features Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Monitor Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Power On/Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Flow Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Patient Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Patient Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Screen Display Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
DATA Display Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
GRAPH Display Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
System Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Parameter Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Battery Alert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Cleaning and Disinfecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Parameter List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Rev. 02 VENT✔ Users Manual 3
4 VENT✔ Users Manual Rev. 02
General Description
The VENT✔ (VentCheck) Handheld Respiratory Mechanics Monitor, Model 101,
from Novametrix Medical Systems Inc., is an easy-to-operate stand-alone
respiratory mechanics monitor. It is intended to be used in patient monitoring
environments by technically skilled clinical personnel.
Indications for
Use
Contraindications
VENT✔ is indicated for use by technically skilled clinical personnel as a mechanics
monitor for mechanically ventilated or spontaneously breathing persons in
monitoring environments including the intensive care unit (ICU), the operating
room (OR) and in emergency/transport care. The device is intended for shortterm use (nominally 1 hour) and is NOT intended for continuous monitoring.
VENT✔ compatible flow sensors are a single patient use devices having fittings
that comply with ISO 5356-1 and may be used in conjunction with endotracheal
tubes, face masks, and breathing circuit devices that also comply with the
specification.
Pediatric/adult flow sensors are indicated for use with endotracheal tubes with
internal diameters of ≥6 mm. Neonatal flow sensors are indicated for use with
endotracheal tubes with internal diameters of ≤4 mm. Further, for endotracheal
tubes with internal diameters of 4.5 to 5.5 mm, in general, neonatal sensors are
indicated if the patient weight <10 kg or tidal volume <100 ml, and pediatric/
adult sensors are indicated where patient weight ≥10 kg and tidal volume ≥100
ml.
VENT✔ is intended for short-term use (nominally 1 hour) and is NOT intended as
a continuous monitoring device.
VENT✔ does NOT compensate for the presence of high oxygen concentrations,
anesthetic gases or helium-oxygen mixtures. When such mixtures are present,
errors in flow measurements may exist.
Principles of
Operation
Rev. 02 VENT✔ Users Manual 5
VENT✔ measures the respiratory parameters of flow and pressure. Many other
parameters are calculated from the flow and pressure signals, including: volume
(tidal and minute), airway resistance, and lung compliance. VENT✔ uses fixed-
orifice, differential pressure pneumotachs. The pneumotach is the airway flow
sensor that converts volumetric flow rate into a differential pressure signal. Gas
flowing through the flow sensor causes a small pressure drop across the two ports
connected to the sensor. This pressure drop is transmitted through the tubing to
the monitor where differential and absolute pressure transducers are located.
This pressure drop is correlated to flow according to the factory stored calibration.
(The relationship between the volumetric flow-rate and the resulting differential
pressure is governed by standard fluid mechanics equations.) User calibration is
not required because of the ability of the plastic injection mold to produce
precision flow sensors. Empirical calibration for the specific pneumotach type
(pediatric/adult, neonatal, etc.) is performed at the factory and is stored in the
monitor. The pressure transducer is automatically "zeroed" to correct for changes
in ambient temperature, electronics and position (gravity effects).
Patient Safety
Warnings
Keep the VENT✔ and its accessories clean. Do not operate the VENT✔ when
it is wet due to spills or condensation.
Connect only Novametrix Series 3 Flow Sensors to the VENT✔. For
maximum performance; keep the pressure sensor ports oriented upward,
and keep the sensor clear of moisture and secretions by proper breathing
circuit maintenance.
Connect the sensor first to the VENT✔ and then to the patient breathing
circuit in order to limit circuit volume loss and to avoid excessive moisture
build-up in the flow sensor tubing.
VENT✔ has electrically isolated inputs. Patient leakage current flowing from
the instrument to ground is limited to less than 50 µA at 120 V, 60 Hz.
Patient isolation is greater than 10 MΩ, 2500 V rms at 60 Hz.
Where electromagnetic devices (i.e., electrocautery) are used, patient
monitoring may be interrupted due to electromagnetic interference.
Electromagnetic fields up to 3 V/m will not adversely affect system
performance.
VENT✔ contains no user serviceable parts. Refer servicing to qualified
service personnel. (See Accessories on page 21 for listings of the Service
Manual and Service Test kit for use by technical personnel.)
This product and its accessories which have patient contact are latex free.
WARNING:
Indicates a potentially harmful co ndition that ca n lead to personal injury.
!
Explosion Hazard: Do NOT use the VENT✔ in the presence of flammable
anesthetics. Use of this instrument in such an environment may present an
explosion hazard.
Electrical Shock Hazard: Always turn the monitor off before cleaning it.
Do NOT use a damaged monitor or sensor. Refer servicing to qualified
service personnel.
Fire Hazard: The VENT✔ should not be exposed to elevated oxygen levels
at elevated pressures. Use in such an environment may present a fire
hazard.
Failure of Operation: If the monitor fails to respond as described, do not
use it until the situation has been corrected by qualified personnel.
Do not apply tension to the sensor tubing while connected to a patient
breathing circuit, as accidental extubation may result.
Do not position the flow sensors tubing in any manner that may cause
entanglement or strangulation.
Use the optional external battery charger in non-patient areas only.
6 VENT✔ Users Manual Rev. 02
Cautions
Notes
CAUTION:
Indicates a condition that may lead to equipment damage or malfunction.
!
Federal (U.S.A.) law restricts this device to sale, distribution, or use by or
on the order of a licensed medical practitioner.
Electrical Shock Hazard: Always turn the monitor off before cleaning. Do
NOT use a damaged monitor.
Do NOT use a damaged flow sensor.
Do NOT immerse the monitor or sensors in liquids.
Do NOT sterilize the monitor or the sensors.
No user serviceable parts inside. Refer servicing to qualified service
personnel.
Operate at temperatures between +10° C to +40° C (50-104° F), < 90%
relative humidity (non-condensing).
Avoid storing the monitor at temperatures less than -20° C or greater than
+55° C (<-4° F or >131° F).
NOTE
Indicates points of particular interest or emphasis and intended to provide for more
efficient or convenient operation.
The VENT✔ operates with Novametrix Series 3 Flow Sensors only.
The VENT✔ performs an automatic zero (self calibration) periodically and as
needed. During this time, monitoring is interrupted for less than three
seconds.
The automatic zero can be manually initiated by simultaneously pressing
the DATA and GRAPH keys. After changing the sensor from Adult to
Neonatal (while the VENT✔ is operational), wait 30 seconds then perform
an automatic zero.
This product and its accessories which have patient contact are free of latex.
The C
To determine the VENT✔ software version, turn the monitor on. During the
self test performed at power up, the software level is shown on the third line
as main-101-xx, where xx is the software version.
Some VENT✔ monitors were produced with the statement Use only
Novametrix approved devices, 13 VDC, 1A located on the label at the Flow
Sensor Input Connector. This erroneous statement does NOT apply to the
VENT✔ monitor and should be ignored.
/C Compliance Ratio (neonatal) parameter is not supported.
20
Rev. 02 VENT✔ Users Manual 7
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