Degree of protection against harmful ingress of water:
IPX0 (non-protected)
Degree of safety of application in the presence of FLAMMABLE ANAESTHETIC MIXTURE WITH AIR, OR WITH
OXYGEN OR NITROUS OXIDE: Equipment not suitable for use in the presence of FLAMMABLE
ANAESTHETIC MIXTURE WITH AIR, OR WITH OXYGEN OR
NITROUS OXIDE
Mode of operation: CONTINUOUS OPERATION
Safety Information
This User’s Guide only contains safety information related to monitoring parameters. Full information is in the
BSM-6000A/K series Bedside Monitor Operator’s Manual (code number: 0614-900685U).
WARNING
Do not diagnose a patient based on only part of the monitoring data on the bedside monitor or only on
the data acquired by the bedside monitor. Overall judgement must be performed by a physician who
understands the features, limitations and characteristics of the bedside monitor by reading this operator’s
manual thoroughly and by reading the biomedical signals acquired by other instruments.
ii User’s Guide Part II BSM-6000
Section 1 ECG Monitoring
General ................................................................................................................................................................ 1.3
Using the Output Signal from the ECG/BP OUT Socket ...........................................................................1.4
Preparing for ECG Monitoring ............................................................................................................................. 1.5
ECG Information on the Home Screen ....................................................................................................1.14
ECG Data Display ...................................................................................................................................1.14
Measuring ST Level ................................................................................................................................1.15
Detached Electrode Detection and Display ............................................................................................. 1.15
AC Interference and Display .................................................................................................................... 1.16
General ....................................................................................................................................................1.17
Arrhythmia Analysis Data Display .................................................................................................1.18
Turning Pacing Spike Detection On or Off.....................................................................................1.41
Displaying Pacing Mark ................................................................................................................. 1.43
Changing the Number of Electrodes ....................................................................................................... 1.43
Selecting Mode for Updating the Heart Rate........................................................................................... 1.44
Selecting the Filter Type .......................................................................................................................... 1.44
Turning the Hum Filter On or Off .............................................................................................................1.45
Changing the Sync Sound Source .......................................................................................................... 1.45
Use with an Electrosurgical Unit ........................................................................................................................ 1.49
1.2 User’s Guide Part II BSM-6000
1. ECG MONITORING
General
1
To monitor ECG, attach disposable electrodes to the patient and connect
them to the ECG/RESP socket on the input unit or BSM-1700 series bedside
monitor. Up to 12 leads can be monitored with arrhythmia analysis and ST level
measurement.
WARNING
The bioelectric impedance measurement sensor of a minute
ventilation rate-adaptive implantable pacemaker may be affected by
cardiac monitoring and diagnostic equipment which is connected to
the same patient. If this occurs, the pacemaker may pace at its
maximum rate and give incorrect data to the monitor or diagnostic
equipment. In this case, set the <IMPEDANCE MEASUREMENT>
on the RESP/CO2 window to OFF on the bedside monitor. For a
patient that requires the respiration monitoring, measure the
respiration by thermistor method.
NOTE
• ECG monitoring using 10 electrodes is not available when an AY-660P
input unit is used.
• When a line isolation monitor is used, noise from the line isolation
monitor may resemble actual ECG waveforms on the bedside monitor
and cause false heart rate alarms or no alarm at all.
User’s Guide Part II BSM-6000 1.3
1. ECG MONITORING
Using the Output Signal from the ECG/BP OUT Socket
CAUTION
When using the output signal from the monitor as
the synchronization signal for other equipment
such as an IABP (intra-aortic balloon pump) or
defibrillator:
• Set the timing of the IABP by checking the
waveform on the IABP screen.
• Check the condition of the bedside monitor
at all times. The output signal may become
unstable.
• Check that the delay time of the output signal is
within the range of the connected equipment.
• Analog ECG, analog BP and heart rate trigger output are not available
when an AY-660P input unit is used.
• The output signal from the ECG/BP OUT socket may become unstable
in the following conditions.
- Electrode is dry or detached.
- Electrode lead is damaged or disconnected from the electrode.
- Electrode lead is pulled.
- AC interference or EMG noise superimposed.
- Air bubbles or blood clog in the circuit for monitoring IBP.
- Cord or cable is disconnected or damaged.
• All instruments which are to be connected to the ECG/BP OUTPUT
socket must use a YJ-910P or YJ-920P ECG/BP output cable and
comply with the IEC 60601-1 safety standard for medical equipment.
CAUTION
Only a Nihon Kohden defibrillator can use the
output signal from the monitor as a
synchronization signal. Check that the delay time
of the output signal (heart rate trigger 20 ms
maximum) is within the range of the connected
defibrillator.
NOTE
The following shows the delay time of the output signal.
Output SignalDelay Time
ECG20 ms
BP40 ms
Heart rate trigger20 ms
1.4 User’s Guide Part II BSM-6000
1. ECG MONITORING
Lead I
Lead II
Lead III
Preparing for ECG Monitoring
Preparation Flowchart
1. Select the electrode lead and electrodes.
2. Connect the electrode lead to the ECG connection cord and connect the ECG
connection cord to the ECG/RESP socket on the input unit or BSM-1700
series bedside monitor.
3. Attach the disposable electrodes to the patient and attach the electrode lead
to the electrodes.
4. Monitoring starts. Set necessary settings.
Number of Electrodes and Measuring Leads
The leads which can be monitored differ according to the type of electrode lead
and number of electrodes used. This monitor automatically identies the number
of electrodes attached to the patient.
1
No. of ElectrodesLeadFeatures
Electrode Position
R/RA
L/LA
F/LL
3I, II, IIICan measure at the thoracic wall.
6I, II, III, aVR, aVL, aVF, two leads from V1 to V6 Similar to the standard 12 lead.
10I, II, III, aVR, aVL, aVF, V1 to V6Standard 12 lead.
3 Electrode Leads
Electrode Position
SymbolLead Color (Clip Color)Electrode Position
R
RA
L
LA
F
LL
Red (Red-beige)
White (White-beige)
Yellow (Yellow-beige)
Black (Black-beige)
Green (Green-beige)
Red (Red-beige)
Right infraclavicular fossa
Left infraclavicular fossa
Lowest rib on the left anterior
axillary line
Lead Connection
R/RA
L/LA
F/LL
R/RA
F/LL
L/LA
R/RA
L/LA
F/LL
User’s Guide Part II BSM-6000 1.5
1. ECG MONITORING
Standard limb leads
Monopolar limb leads
Monopolar chest leads
aV
V1 to V6 leads
R/RA
Cb/Vb
Ca/Va
N (RF/RL)
F/LL
L/LA
6 Electrode Leads
Electrode Position
The 5-electrode method with lead II and lead V5 is effective for monitoring
myocardial ischemia. You can improve monitoring accuracy considerably
by adding lead V4 to this combination. Ca and Cb (Va and Vb) can be at any
position of the standard 12 leads C1 to C6 (V1 to V6), but C4 and C5 (V4 and
V5) are most appropriate for myocardial ischemic monitoring.
For details on attaching the Ca or Cb electrode to C1, C2, C3 or C6, refer to the
“Standard 12 Leads” section.
SymbolLead Color (Clip Color)Electrode Position
R
RA
L
LA
F
LL
N* (RF)
N* (RL)
Ca
Va
Cb
Vb
Red (Red-beige)
White (White-beige)
Yellow (Yellow-beige)
Black (Black-beige)
Green (Green-beige)
Red (Red-beige)
Black (Black-beige)
Green (Green-beige)
White (Brown-white)
Brown (Blue-brown)
White (Black-white)
Brown (Orange-brown)
Right infraclavicular fossa
Left infraclavicular fossa
Lowest rib on the left anterior
axillary line
Right anterior axillary line at the
same level as F
Fifth intercostal space on the left
midclavicular line (C4 position of
standard 12 leads)
Left anterior axillary line at the
same level as Ca (C5 position of
standard 12 leads)
* N is the electrical reference point.
Lead Position
Lead I
R/RA
N (RF/RL)
R leadaVL leadaVF lead
R/RA
N (RF/RL)
L/LA
F/LL
L/LA
F/LL
Lead IILead III
R/RA
N (RF/RL)
R/RA
N (RF/RL)
L/LA
F/LL
N (RF/RL)
L/LA
F/LL
N (RF/RL)
R/RA
R/RA
L/LA
F/LL
L/LA
F/LL
1.6 User’s Guide Part II BSM-6000
R/RA
N (RF/RL)
to
L/LA
F/LL
1. ECG MONITORING
R/RA
C1/V1
C2/V2
C3/V3
C4/V4
N (RF/RL)
L/LA
C5/V5
F/LL
C6/V6
Mason-Likar Modification
WARNING
Do not use 12 lead ECG interpretation results and measured values
from the Mason-Likar modification for diagnosis because the limb
electrode placement is not the same as the standard 12 lead ECG.
This may cause wrong diagnosis since 12 lead ECG interpretation of
this monitor is based on the standard 12 lead ECG.
The Mason-Likar modication places the four limb electrodes close to the
shoulders and lower abdomen. The six C (V) electrodes are placed on the chest
in the same position as the standard 12 lead ECG electrode placement. The
waveforms acquired from the Mason-Likar modication are different from those
of the standard 12 lead.
Electrode Position
SymbolLead Color (Clip Color)Electrode Position
R
RA
L
LA
F
LL
N* (RF)
N* (RL)
C1
V1
C2
V2
C3
V3
C4
V4
C5
V5
C6
V6
Red (Red-beige)
White (White-beige)
Yellow (Yellow-beige)
Black (Black-beige)
Green (Green-beige)
Red (Red-beige)
Black (Black-beige)
Green (Green-beige)
White (Red-white)
Brown (Red-brown)
White (Yellow-white)
Brown (Yellow-brown)
White (Green-white)
Brown (Green-brown)
White (Brown-white)
Brown (Blue-brown)
White (Black-white)
Brown (Orange-brown)
White (Purple-white)
Brown (Purple-brown)
Right infraclavicular fossa
Left infraclavicular fossa
Lowest rib on the left anterior
axillary line
Right anterior axillary line at the
same level as F
Fourth intercostal space at the right
border of the sternum
Fourth intercostal space at the left
border of the sternum
Halfway between C2 and C4
Fifth intercostal space on the left
midclavicular line
Left anterior axillary line at the
same level as C4
Left midaxillary line at the same
level as C4
1
* N is the electrical reference point.
Lead Connection
The lead connection is the same as the 6 electrode lead.
User’s Guide Part II BSM-6000 1.7
1. ECG MONITORING
R/RA
C2/V2
C1/V1
C3/V3
C4/V4
C5/V5
N (RF/RL)F/LL
C6/V6
L/LA
Standard 12 Leads
Electrode Position
SymbolLead Color (Clip Color)Electrode Position
R
RA
L
LA
F
LL
N* (RF)
N* (RL)
C1
V1
C2
V2
C3
V3
C4
V4
C5
V5
C6
V6
Red (Red-beige)
White (White-beige)
Yellow (Yellow-beige)
Black (Black-beige)
Green (Green-beige)
Red (Red-beige)
Black (Black-beige)
Green (Green-beige)
White (Red-white)
Brown (Red-brown)
White (Yellow-white)
Brown (Yellow-brown)
White (Green-white)
Brown (Green-brown)
White (Brown-white)
Brown (Blue-brown)
White (Black-white)
Brown (Orange-brown)
White (Purple-white)
Brown (Purple-brown)
Inside of right arm between the
wrist and the elbow
Inside of left arm between the wrist
and the elbow
Inside of the left calf between the
knee and the ankle
Inside of the right calf between the
knee and the ankle
Fourth intercostal space at the right
border of the sternum
Fourth intercostal space at the left
border of the sternum
Halfway between C2 and C4
Fifth intercostal space on the left
midclavicular line
Left anterior axillary line at the
same level as C4
Left midaxillary line at the same
level as C4
* N is the electrical reference point.
Lead Connection
The lead connection is the same as the 6 electrode lead.
Electrode Positions for Detecting the Pacemaker Pulse
If the pacemaker pulse cannot be detected, change the electrode lead or electrode
positions as follows.
Changing the Electrode Lead
If the pacemaker pulse cannot be detected with lead II, use lead I or lead III.
Changing the Electrode Positions
If the pacemaker pulse cannot be detected with lead I or lead III, change the
electrode position as follows.
1. With the lead II position, move the F/LL electrode up.
L/LA
R/RA
F/LL
Lead II
1.8 User’s Guide Part II BSM-6000
1. ECG MONITORING
R/RA
R/RA
Lead II
Lead II
L/LA
F/LL
L/LA
F/LL
2. If step 1 was not effective, move the R/RA electrode down.
3. If step 2 was not effective, move the R/RA and F/LL electrodes closer
together.
If the pacemaker pulse is still not detected, the pacing pulse on the body
surface may be too small. The sensitivity performance is limited.
1
Selecting Electrodes and Lead
Select the appropriate electrodes and lead according to the purpose.
WARNING
When using a defibrillator together with the
monitor, use Ag/AgCl electrodes. Other types of
electrodes, stainless steel in particular, will
adversely affect the ECG waveform by slowing
the baseline recovery on the monitor and result in
no monitoring immediately following defibrillation.
CAUTION
Only use Nihon Kohden specified electrodes and
electrode leads. When other type of electrodes or
electrode leads are used, the “CHECK
ELECTRODES” message may be displayed and
ECG monitoring may stop.
CAUTION
• When using the electrodes with DIN type lead,
use only Vitrode V or N electrodes. If other
electrodes are used, the electrode lead might
not be properly connected and ECG monitoring
may be unstable.
• Do not use electrodes of different metals. ECG
monitoring may be unstable if electrodes of
different metals are used.
NOTE
• Electrode leads other than Nihon Kohden’s might not be defibrillator-
proof.
• Do not use different types of electrodes together. This might cause ECG
monitoring to become unstable.
User’s Guide Part II BSM-6000 1.9
1. ECG MONITORING
Types of Electrodes and Lead
No. of ElectrodesDisposable ElectrodesElectrode LeadECG Connection Cord
Vitrode F-150M, F-150S,
L-150, L-150X
3
(I, II, III)
Disposable Electrode with DIN type lead, Vitrode V-090M3,
V-09IO3, V-120S3, N-03IS3
Vitrode F-150M, F-150S,
L-150, L-150X
6
(I, II, III, aVR, aVL,
aVF, 2 from V1 to
V6)
BR-903P (IEC)/BR-903PA (AHA)
(Clip type, 0.8 m)
BR-963P (IEC) (Clip type: 0.8 m)
BR-906P (IEC)/BR-906PA (AHA)
(Clip type, 0.8 m)
JC-906P (IEC)/JC-906PA
(AHA), 3 m
JC-916P (IEC), 1.5 m
10
(I, II, III, aVR, aVL,
aVF, V1, V2, V3, V4,
V5, V6)
Disposable Electrode with DIN type lead, Vitrode V-060M6,
V-06IO6
Vitrode F-150M, F-150S,
L-150, L-150X
Disposable Electrode with DIN type lead, Vitrode V-040M4,
V-04IO4, V-060M6, V-06IO6
ECG Patient Cable BJ-900P (IEC)/BJ-900PA (AHA)
JC-900P (IEC)/
JC-900PA (AHA)
1.10 User’s Guide Part II BSM-6000
1. ECG MONITORING
Connecting Cables and Attaching Disposable Electrodes
Connecting the Electrode Cable to the Input Unit
1. Connect the electrode lead and ECG connection cord so that their white
panels face the same side.
White panels
When using the electrode with DIN type lead, connect the electrode lead
of the electrode directly to the ECG connection cord according to the panel
symbols.
2. Connect the ECG connection cord to the ECG/RESP socket.
1
When connecting the 3-electrode lead
When using more than 3 electrodes with DIN type lead with JC-906P or
JC-906PA ECG connection cord, the number of electrodes must be set on the
OTHER page of the ECG window. Refer to the “Changing the Number of
Electrodes” section.
Connecting the Electrode Cable to the BSM-1700 series Bedside
Monitor
Refer to the manuals of the BSM-1700 series bedside monitor for details.
User’s Guide Part II BSM-6000 1.11
1. ECG MONITORING
Attaching Disposable Electrodes to the Patient
Attach the electrodes to the patient by referring to the manual provided with the
electrodes.
WARNING
After attaching the electrode to the patient and connecting the cable
to the monitor, check that electrodes are attached to the patient and
check that the cable is connected to the monitor properly. When the
electrodes are removed from the patient, do not touch the metal part
of the electrode with bare hands or let the metal part of the electrode
contact the metal part of the bed or any other conductive parts.
Failure to follow this warning may cause electrical shock or injury to
the patient by discharged energy.
CAUTION
Do not reuse disposable electrodes.
NOTE
• To maintain good contact between the electrode and skin, check that
the paste of the disposable electrode is not dry.
• When contact of the disposable electrode becomes poor, replace the
electrode with a new one immediately. Otherwise, contact impedance
between the skin and electrode increases and the correct ECG cannot
be obtained.
To obtain a stable ECG:
• Shave excess hair.
• Rub the patient’s skin with a piece of cotton where the electrodes are to be
attached.
• If the skin is dirty, clean with soap and water. Dry completely.
1.12 User’s Guide Part II BSM-6000
1. ECG MONITORING
Monitoring ECG
1
When electrodes are attached to the patient and cables are connected properly,
ECG and heart rate appear on the screen. The monitor automatically learns the
patient’s dominant ECG.
One lead appears on the home screen. Up to three leads can be displayed on the
home screen when monitoring with six or ten leads. You can display eight leads
on the 12 LEAD window when monitoring with six electrodes and twelve leads
when monitoring with ten electrodes. To perform 12 lead ECG interpretation,
ECG must be monitored with ten electrodes. For details about the 12 lead ECG
interpretation, refer to the Operator’s Manual or Section 7 of the User’s Guide
Part I.
The number of traces to be displayed on the home screen can be set on the
DISPLAY window. Refer to Section 4 of the User’s Guide Part I.
CAUTION
When the “CHECK ELECTRODES” message is
displayed, ECG is not monitored properly and the
ECG alarm does not function. Check the
electrode, electrode leads and connection cord,
and if necessary, replace with new ones.
• After adjusting the sensitivity of the ECG on the screen and changing
necessary settings, check that the dominant QRS is appropriate.
• Before starting monitoring of a pacemaker patient, check that the
pacing mark is displayed on the ECG.
• The maximum heart rate range is 300 beats/min. “300” is displayed on
the screen even when the patient’s heart rate is above 300.
CAUTION
When the “NOISE” or “CANNOT ANALYZE”
message is displayed, ECG data and alarm are
not reliable. Remove the cause by checking the
electrodes, electrode leads, patient’s body
movement, EMG and peripheral instruments
grounding. Also make sure that an electric
blanket is not used.
NOTE
User’s Guide Part II BSM-6000 1.13
1. ECG MONITORING
ECG Information on the Home Screen
Heart rate trendgraph
Heart rateQRS sync mark
ST level of the
third trace
ST level of the
second trace
ST level of the
first trace
The ST recall waveform,
and reference ST recall
waveform of selected
monitoring ECG leads
are displayed on the
home screen depending
on the settings on the
ST window of the
REVIEW window. Up
to 3 waveforms can
be displayed. Refer to
Section 6 of the User’s
Guide Part I.
ST level trendgraph
Scale of heart rate and ST level trendgraphs
ECG waveform
Sensitivity
Lead
Filter
setting
QRS
detection
type
VPC
ECG Data Display
The following ECG related data is acquired when ECG is monitored.
Displayed Data
Screen/Window
Home screen
TREND window
(Refer to the Operator’s Manual or
Section 6 of the User’s Guide Part I)
ARRHYTHMIA RECALL window
(Refer to the Operator’s Manual or
Section 6 of the User’s Guide Part I)
ST RECALL window
(Refer to the Operator’s Manual or
Section 6 of the User’s Guide Part I)
1
Arrhythmia analysis can be turned on or off on the ECG window → ARRHYTH ANALYSIS page.
*
2
*
Alarm on/off and threshold can be set individually for certain arrhythmias on the ARRHYTH page on the ECG
window or ARRHYTH ALARMS window.
When alarm recording is turned on, the data and waveform are recorded at the arrhythmia alarm occurrence.
*3 The arrhythmia waveforms to be saved as recall les are set on the RECALL window of the Review window.
<ARRHYTHMIA ANALYSIS> is
set to ON*
1
Heart rate
ST level
Arrhythmia classication message
<ARRHYTHMIA ANALYSIS> is
Heart rate
ST level
“ASYSTOLE” alarm occurrence
Number of VPC per minute
Arrhythmia alarm occurrence (when
arrhythmia alarm is set to ON*2)
Heart rate trendgraph
ST level trendgraph
Number of VPC trendgraph
Heart rate list
Heart rate trendgraph
ST level trendgraph
Heart rate list
ST level list
ST level list
Number of VPC list
Recall les of the arrhythmias set to
be saved*
3
“ASYSTOLE” recall les
ST recall lesST recall les
set to OFF*
1
1.14 User’s Guide Part II BSM-6000
1. ECG MONITORING
Baseline
ST wave
ST level
Measuring ST Level
1
The ST level is the amplitude between the baseline and ST wave. The ECG
waveform is averaged for 15 seconds to remove artifacts. The baseline and the
ST wave are detected from the averaged ECG, and the ST level is measured.
NOTE
• If there are too many arrhythmias, there is noise on the ECG, or the
heart rate is below 32, ST level might not be measured and ST level is
not displayed on the screen.
• Although the ST algorithm has been tested for accuracy of the ST
analysis result, the significance of the ST level changes need to be
determined only by a physician.
• If there is baseline drift on the ECG, ST waves are distorted and the ST
measurement may be impossible.
ST levels of up to 12 leads can be displayed on the ST window of the Review
window. Refer to “ST Window” of the Operator’s Manual or Section 6 of the
User’s Guide Part I.
You can change the ISO point, J point and ST point for ST level measurement
on the ECG window → ST POINT page. Refer to the “Changing the ST Level
Measurement Condition” section.
Detached Electrode Detection and Display
When an electrode or electrode lead is detached during ECG monitoring, a
“CHECK ELECTRODES” alarm occurs.
When monitoring with 6 or 10 electrodes and <AUTO LEAD CHANGE> on
the ECG window is set to ON, and the “CHECK ELECTRODES” message is
displayed for more than 5 seconds, the lead for the rst trace on the home screen
is automatically changed to a stable lead.
Five seconds after the detached electrode or electrode lead is attached again, the
lead of the rst trace returns to the lead prior to auto lead change.
While the “CHECK ELECTRODES” message is displayed, the correct ECG
waveform is not displayed. To prevent incorrect reading of ECG during an
error condition, the ECG waveform is temporarily replaced with a square wave
and at line. Check the electrodes if this message appears. Refer to “Screen
Messages” section of the Operator’s Manual.
When the “CHECK ELECTRODES” message is displayed, ECG is
not monitored properly and the ECG alarm does not function. Check
the electrode, electrode leads and connection cord, and if necessary,
replace with new ones.
CAUTION
User’s Guide Part II BSM-6000 1.15
1. ECG MONITORING
AC Interference and Display
When the “CHECK ELECTRODES” message appears, the ECG waveforms
become square waves for 2 seconds, then change to at lines above the baseline.
To prevent incorrect reading of ECG during an error condition, when there is a
large AC interference (hum) on the waveform, the “CHECK ELECTRODES”
message appears and the waveform appears as shown below, depending on the
lter setting on the ECG window.
When the waveform looks like this, check that the bedside monitor is properly
grounded.
Hum noises may interfere if the electrodes are dry. Replace the electrodes with
new ones.
When <FILTERS> is set to DIAG
Noise superimposes on the waveform.
When <FILTERS> is set to MONITOR or MAXIMUM
When noise superimposes on the waveform and it is difcult to detect QRS
waves, the ECG waveforms become square waves for 2 seconds, then change to
at lines above the baseline.
1.16 User’s Guide Part II BSM-6000
1. ECG MONITORING
Monitoring Arrhythmia
General
1
The following functions are available for arrhythmia monitoring.
These arrhythmias become available when “EXTENDED” is selected for <ARRHYTHMIA TYPE> on the SYSTEM SETUP screen.
1*5
Refer to Section 3 of the Administrator’s Guide.
2
*
This number is set in the VT alarm setting.
3
*
120 beats/min when <QRS DETECTION TYPE> is set to ADULT, 150 beats/min when <QRS DETECTION TYPE> is set to CHILD
or NEONATE.
Ventricular tachycardia. 3 to 9 (selectable*1) or more consecutive VPCs when heart rate exceeding the
VT heart rate limit (16 to 300 beats/min selectable*
1
).
Extreme tachycardia exceeding the EXTREME TACHY limit.
Extreme bradycardia dropping below the EXTREME BRADY limit.
Ventricular bradycardia. 3 or more consecutive VPCs when heart rate drops below the V BRADY heart
rate limit (15 to 299 beats/min selectable).
VPC short run. 3 to 8 (selectable) consecutive VPCs when heart rate exceeds the VPC RUN heart rate
limit (16 to 300 beats/min selectable*
1
).
or
The selected number*
2
of consecutive VPCs when heart rate drops below the VT heart rate limit.
Supraventricular tachycardia. 3 to 9 (selectable) or more consecutive normal QRS of regular R-R interval
when heart rate exceeding the SV TACHY heart rate limit (16 to 300 beats/min selectable).
1 to 3 seconds (selectable) with no QRS.
Ventricular rhythm. 3 or more consecutive VPCs.
Early VPC including R-on-T type. VPC with a time interval from the preceding normal QRS complex of
less than approximately one-third of the normal R-R interval, at heart rate dropping below 120*
3
beats/
min.
Two different shaped VPCs within the last 3 minutes.
Ventricular bigeminy. 3 or more consecutive pairs of VPC and normal QRS. A dominant rhythm of N-V-
N-V-N-V (N = normal beat, V = ventricular beat)
Ventricular trigeminy. A dominant rhythm of N-N-V-N-N-V.
Frequent VPCs. VPC rate (VPCs/min) reaching or exceeding the preset limit of 1 to 99 VPCs/min
(selectable).
Atrial brillation longer than 2 minutes.
Consistently irregular R-R intervals.
R-R interval 1.75 times longer than the dominant R-R interval.
No QRS and pacing pulse within the bradycardia limit. Oversensing.
No QRS from the preceding pacing pulse for the preset time interval (40 to 480 ms selectable). Non-
capture.
1.18 User’s Guide Part II BSM-6000
1. ECG MONITORING
*4 Not available for BSM-6000K series. Available only when <ARRHYTHMIA TYPE> on the ECG page of the SYSTEM SETUP
window is set to EXTENDED, and <AF DETECTION> on the ECG page of the SYSTEM SETUP window is set to On. For the
SYSTEM SETUP window settings, refer to the Administrator’s Guide.
5
*
Available only when pacing detection is set to ON.
WARNING
It is not possible to obtain 100% accurate detection of every
arrhythmia.
WARNING
Do not use AF detection for children or neonates. The monitor might
not correctly detect AF in children or neonates.
WARNING
The monitor requires a minimum of 2 minutes of continuous analysis
before AF can be detected. Detection may take up to 2.5 minutes.
NOTE
If arrhythmia type is changed to “EXTENDED” and the bedside monitor
is connected via network to a central monitor that has old software, the
“Lost communication with instruments in the network” message appears
on the bedside monitor and the bedside monitor cannot be monitored on
the central monitor.
1
The QRS is annotated as follows.
QRS AnnotationDescription
NNormal QRS complex
VVentricular premature contraction
PPaced QRS
?Impossible to classify or during learning
–Noise
Changing Arrhythmia Monitoring Settings
Check the following settings for arrhythmia monitoring.
Turning Arrhythmia Analysis On or Off
For arrhythmia monitoring, set <ARRHYTHMIA ANALYSIS> on the
ECG window to ON. Otherwise, there is no sound or indication for
arrhythmia alarms (except for ASYSTOLE).
WARNING
When arrhythmia monitoring is necessary, select “ON”.
User’s Guide Part II BSM-6000 1.19
1. ECG MONITORING
This arrhythmia analysis on/off setting returns to the master setting on the
ARRHYTH page of the MASTER window when:
• The monitor power is off for more than 30 minutes and <SHOW
ADMIT CONFIRMATION WINDOW> is turned off in the SYSTEM
CONFIGURATION screen.
• The patient is admitted or discharged.
To change the master setting, refer to Section 3 of the Administrator’s Guide.
1. Display the ARRHYTH ANALYSIS page of the ECG window.
15 to 299 beats/min (ADULT, CHILD: 50
NEONATE: 60)
3 to 8 VPCs (3)
VPC RUN
16 to 300 beats/min (ADULT, CHILD: 100
NEONATE: 140)*
1
3 to 9 VPCs (6)ON/OFF (OFF)
SV TACHY*
1
16 to 300 beats/min (ADULT, CHILD: 170
NEONATE: 210)
PAUSE*
V RHYTHM*
1
1
1.0 to 3.0 s (ADULT, CHILD: 3.0 NEONATE: 1.5)ON/OFF (ON)
–––
COUPLET–––ON/OFF (OFF)
EARLY VPC–––ON/OFF (OFF)
MULTIFORM*
1
–––ON/OFF (OFF)
BIGEMINY–––ON/OFF (OFF)
TRIGEMINY*
4
AF*
IRREGULAR RR*
PROLONGED RR*
NO PACER PULSE*1*
PACER NON-CAPTURE*1*
1
–––ON/OFF (OFF)
–––
1
1
3
5
40 to 480 ms (400)ON/OFF (OFF)
–––ON/OFF (OFF)
–––ON/OFF (OFF)
–––ON/OFF (OFF)
Alarm ON/OFF Setting
(Default Setting)
ON/OFF (OFF)
ON/OFF (OFF)
ON/OFF (ADULT OR: OFF, ICU/
NICU: ON
CHILD, NEONATE: OFF)
ON/OFF (ADULT OR: OFF, ICU/
NICU: ON
CHILD, NEONATE: OFF)
ON/OFF (OFF)
ON/OFF (ADULT OR: OFF, ICU/
NICU: ON
CHILD, NEONATE: OFF)
ON/OFF (ADULT: ON, CHILD,
NEONATE: OFF)
1
*1 These arrhythmias become available when “EXTENDED” is selected for <ARRHYTHMIA TYPE> on the SYSTEM SETUP screen.
Refer to Section 3 of the Administrator’s Guide.
2
*
When EXT TACHY alarm setting is OFF, HR setting range is 16 to 300 beat/min or OFF.
3
*
When EXT BRADY alarm setting is OFF, HR setting range is 15 to 299 beat/min or OFF.
4
*
Not available for BSM-6000K series. Available only when <ARRHYTHMIA TYPE> on the ECG page of the SYSTEM SETUP
window is set to EXTENDED, and <AF DETECTION> on the ECG page of the SYSTEM SETUP window is set to On. For the
SYSTEM SETUP window settings, refer to the Administrator’s Guide.
5
*
Available only when pacing detection is set to ON.
You can also set arrhythmia alarm limits on the ARRHYTH ALARMS window
(See the Operator’s Manual or Section 5 of the User’s Guide Part I).
NOTE
If arrhythmia type is changed to “EXTENDED” and the bedside monitor
is connected via network to a central monitor that has old software, the
“Lost communication with instruments in the network” message appears
on the bedside monitor and the bedside monitor cannot be monitored on
the central monitor.
User’s Guide Part II BSM-6000 1.35
1. ECG MONITORING
1. Display the ARRHYTH page of the ECG window.
Press the [Menu] key → ECG key → ARRHYTH tab.
Threshold setting
ON/OFF key
2. To turn off an arrhythmia alarm, touch the ON key to turn it to OFF.
To turn on an arrhythmia alarm, touch the OFF key to turn it to ON.
To set the threshold, use the or key to adjust the setting.
NOTE
For BSM-6000A series bedside monitors:
• Items can be turned on or off but thresholds are fixed and cannot
be changed. The thresholds are set by the administrator on the
MASTER window of the SYSTEM SETUP window.
• Arrhythmia alarm whose priority is set to CRISIS on the ALARM
window of the SYSTEM SETUP window cannot be set to OFF.
Refer to Section 3 of the Administrator’s Guide.
When EXTENDED is selected for the arrhythmia type in the SYSTEM
SETUP window, touch the threshold to display the ARRHYTH window and
adjust the setting.
3. Press the [Home] key to return to the home screen.
1.36 User’s Guide Part II BSM-6000
1. ECG MONITORING
Changing the ST Alarm Limits
Selected lead
1
CAUTION
When the alarm limit is set to OFF, there will be no alarm for that
limit. Be careful when you set the alarm limit to OFF.
You can set the upper and lower ST alarm limits for each lead individually or
altogether on the ECG window. You can set all alarms, including the upper and
lower ST of all leads alarm limits, on the ALARM LIMITS window (See the
Operator’s Manual or Section 5 of the User’s Guide Part I).
Setting Range
Upper limit: –1.99 to +2.00 mV in 0.01 mV steps (–19.9 to +20.0 mm in
0.1 mm steps), OFF (default setting: OFF)
Lower limit: OFF, –2.00 to +1.99 mV in 0.01 mV steps (–20.0 to +19.9 mm in
0.1 mm steps) (default setting: OFF)
1. Display the ST ALARMS page of the ECG window.
Press the [Menu] key → ECG key → ST ALARMS tab.
Current ST level of the selected lead
2. To set the upper and lower alarm for a lead
i) Select the lead.
ii) Touch and drag the sliders to the desired level on the setting bar. Use the
or key to adjust the setting.
If the upper limit is set to a value above the maximum, the upper
limit alarm is set to OFF. If the lower limit is set to a value below the
minimum, the lower limit alarm is set to OFF.
Current ST level of the
selected lead
Upper limit slider
Upper limit
Setting bar
Lower limit
Lower limit slider
User’s Guide Part II BSM-6000 1.37
1. ECG MONITORING
R
ISO point
To set alarms altogether for all leads according to the current ST value
i) Touch the ST-ALL key.
ii) Touch and drag the sliders to the desired level on the setting bar. Use the
or key to adjust the setting.
iii) Touch the SET key to set the upper and lower limits according to the
current value of the ST value.
Upper limit
Upper limit slider
Lower limit slider
Lower limit
ST-ALL key
3. Press the [Home] key to return to the home screen.
Changing the ST Level Measurement Condition
In the ST level measurement, the ISO point determines the baseline and the ST
point and J point determine the ST level from the baseline. You can change the
ISO point, J point and ST point for ST level measurement.
T
P
Q
S
ST point
J point
Although the ST algorithm has been tested for accuracy of the ST
analysis result, the significance of the ST level changes need to be
determined only by a physician.
Setting Range
ISO point: (R –) 0 to 248 ms in 4 ms steps
J point: (R +) 0 to 340 ms in 4 ms steps
ST point: (R +) R +: 0 to * ms in 4 ms steps
* When J point is set to R +: 340 ms, ST point is J + 0 ms.
SET key
NOTE
Setting bar
Default Setting
When <QRS DETECTION TYPE> is set to ADULT:
ISO point: R – 80
J point: R + 48
ST point: R + 60
When <QRS DETECTION TYPE> is set to CHILD or NEONATE:
ISO point: R – 56
ST point: R + 60
1.38 User’s Guide Part II BSM-6000
1. ECG MONITORING
When QRS DETECTION TYPE is set to CHILD or NEONATE
1. Display the ST POINT page of the ECG window.
Press the [Menu] key → ECG key → ST POINT tab.
2. Select the lead(s) by touching the lead key to be displayed on the ST POINT
page. The QRS wave(s) of the selected lead(s) appears on the window.
1
Lead keys
If the QRS wave does not appear on the window, close the window then
open it again.
NOTE
R point vertical cursor is fixed.
3. To change the ISO point and ST point
i) Touch the ISO point vertical cursor and ST point vertical cursor to move
the vertical cursor left to right.
ii) Touch the or key to move the vertical cursor left or right to adjust
the setting. The cursor moves in 4 ms steps.
ISO point vertical cursor
ST point vertical cursor
4. To register the ST level measurement condition settings, touch the SET key.
The ST level is measured with the new measurement condition settings.
To refresh the QRS waves on the ST POINT window, touch the REFRESH
key.
User’s Guide Part II BSM-6000 1.39
1. ECG MONITORING
5. Press the [Home] key to return to the home screen.
When QRS DETECTION TYPE is set to ADULT
1. Display the ST POINT page of the ECG window.
Press the [Menu] key → ECG key → ST POINT tab.
2. Select the lead(s) by touching the lead key to be displayed on the ST POINT
page. The QRS wave(s) of the selected lead(s) appears on the window.
Lead keys
If the QRS wave does not appear on the window, close the window then
open it again.
NOTE
• R point vertical cursor is fixed.
• When moves the J point vertical cursor, ST point vertical cursor also
moves.
3. To change ISO and J points
i) Touch the ISO point vertical cursor and J point vertical cursor to move
the vertical cursor left to right.
ii) Touch the or key to move the vertical cursor left or right to adjust
the setting. The cursor moves in 4 ms steps.
ISO point vertical cursorJ point vertical cursor
1.40 User’s Guide Part II BSM-6000
1. ECG MONITORING
To change the ST point
i) Touch the ST POINT key to open the ST POINT dialog box.
ii) Touch the ST point vertical cursor to move the vertical cursor.
iii) Touch the or key to move the vertical cursor left or right. The
cursor moves in 4 ms steps.
iv) Touch the key to close the dialog box.
4. To register the ST level measurement condition settings, touch the SET key.
The ST level is measured with the new measurement condition settings.
1
Changing Pacing Settings
To refresh the QRS waves on the ST POINT window, touch the REFRESH
key.
5. Press the [Home] key to return to the home screen.
Turning Pacing Spike Detection On or Off
When the patient has an implanted cardiac pacemaker, the pacing pulse may be
counted as QRS and the heart rate may be miscounted. The pacing pulse is a
very small wave which cannot be displayed on the monitor. When pacing spike
detection is set to ON, the pacemaker spikes are rejected which allows correct
heart rate counting. When pacing mark is set to ON, the pacing mark is displayed
on the ECG. Refer to the “Displaying Pacing Mark” section.
The pacing spike detection is automatically turned on when <PACE MAKER>
on the ADMIT page of the ADMIT DISCHARGE window is set to YES.
When pacing spike detection is set to OFF, the non-paced mark
upper right of the screen.
appears in the
User’s Guide Part II BSM-6000 1.41
1. ECG MONITORING
WARNING
Turn the pacing pulse detection to ON when
monitoring a pacemaker patient. Otherwise the
pacemaker pulse is not rejected. However, even
when the pacing pulse detection is set to ON, the
pacemaker pulse might not be rejected. When the
pacemaker pulse is not rejected, the pacemaker
pulse is detected as QRS and false heart rate
may be indicated or critical arrhythmia such as
asystole may be overlooked. Keep pacemaker
patients under close observation.
* For the pacemaker pulse rejection capability of BSM-6000
series bedside monitor, refer to the “Specications - ECG”
in the operator’s manual.
When you monitor a premature baby or infant and the monitor miscounts
the narrow width QRS, set this to OFF.
1. Display the OTHER page of the ECG window.
Press the [Menu] key → ECG key → OTHER tab.
WARNING
Even when the pacing pulse detection is set to
ON, the pacemaker pulse can be overlooked or
detected as QRS. You cannot confirm the
pacemaker operation only from the detected
pacemaker pulse.
NOTE
2. Touch the ON or OFF key under <DETECT> in the <PACING> box to
select on or off.
1.42 User’s Guide Part II BSM-6000
1. ECG MONITORING
Displaying Pacing Mark
When the <PACING DETECT> is set to ON, the pacing mark can be displayed
on the ECG waveform.
1. Display the OTHER page of the ECG window.
Press the [Menu] key → ECG key → OTHER tab.
Touch the ON or OFF key under <MARK> in the <PACING> box to select on
2.
or off. When set to ON, the pacing mark is displayed on the ECG waveform.
3. Press the [Home] key to return to the home screen.
1
Changing the Number of Electrodes
Select the type and number of electrodes.
1. Display the OTHER page of the ECG window.
Press the [Menu] key → ECG key → OTHER tab.
2. Select the type and number of electrodes in the <NUMBER OF
ELECTRODES> box.
STANDARD: Any electrodes other than DIN type. The number of
INDIV 6: Monitoring with 3 or 6 DIN type electrodes.
INDIV 10: Monitoring with 10 DIN type electrodes. The RF/RL
3. Press the [Home] key to return to the home screen.
electrodes (3, 6 or 10) is automatically recognized by the
monitor.
electrode must be attached.
User’s Guide Part II BSM-6000 1.43
1. ECG MONITORING
Selecting Mode for Updating the Heart Rate
There are two calculation modes, “AVERAGE” and “INSTANT”.
AVERAGE: The heart rate is calculated by a moving average. The monitor
detects 12 consecutive beats including VPC, averages the R-R
intervals of the latest 12 beats and uses this average to calculate
the current heart rate. When a new beat is detected, the heart rate
is recalculated using the latest 12 beats. The heart rate display is
updated every 3 seconds.
INSTANT: The heart rate is calculated every beat. The heart rate display is
updated every 3 seconds.
1. Display the OTHER page of the ECG window.
Press the [Menu] key → ECG key → OTHER tab.
2. Select AVERAGE or INSTANT in the <HR DISPLAY MODE> box.
Selecting the Filter Type
3. Press the [Home] key to return to the home screen.
There are following types for ECG lter.
DIAG: No lter. This mode is best for viewing the details of the
waveform. It is similar to the real ECG. (0.05 to 150 Hz)
MONITOR: Low-cut and high-cut lter. (0.3 to 40 Hz)
MAXIMUM: Baseline drift-free, hum (AC) and high-cut lter. Appropriate when
there is noise from AC or ESU. (1 to 18 Hz)
NOTE
When performing defibrillation, set the <FILTERS> to MONITOR or
MAXIMUM. The waveform recovery may become slow due to electrode
polarization when DIAG is set.
1. Display the OTHER page of the ECG window.
Press the [Menu] key → ECG key → OTHER tab.
1.44 User’s Guide Part II BSM-6000
1. ECG MONITORING
2. Select lter type from the <FILTERS> box.
3. Press the [Home] key to return to the home screen.
Turning the Hum Filter On or Off
The hum lter type is set on the SYSTEM SETUP window. Refer to Section 3 of
the Administrator’s Guide.
1. Display the OTHER page of the ECG window.
Press the [Menu] key → ECG key → OTHER tab.
1
2. Touch the ON or OFF key under <HUM FILTER> in the <FILTERS> box to
3. Press the [Home] key to return to the home screen.
Changing the Sync Sound Source
You can select ECG, SpO2 pulse (SpO2) or arterial blood pressure pulse (PRESS)
as the sync sound source. When the arterial blood pressure pulse is selected, the
blood pressure of the highest priority label is used. The sync source can also be
changed on the SpO2 and PRESS windows.
select on or off.
When pulse wave and pressure waveform are irregular because of an IABP,
select ECG.
NOTE
• When heart rate is unstable because of an ESU, select SpO
or
2
PRESS.
User’s Guide Part II BSM-6000 1.45
1. ECG MONITORING
• When the SpO2 connection cord is disconnected or the SpO2 probe is
detached and an alarm occurs, the sync source changes to ECG (HR).
The sync source returns to SpO2 when the SpO2 is measured again.
• The SpO2-2 cannot be set to the sync sound source.
When the sync source is set to ECG and ECG is not measured, there is no sync
sound.
When SpO2 or PRESS is selected, the pulse rate is displayed to the left of the
heart rate on the screen and the sync mark synchronizes with the pulse.
1. Display the OTHER page of the ECG window.
Press the [Menu] key → ECG key → OTHER tab.
2. Select the sync source in the <SYNC SOURCE> box.
ECG: QRS
PRESS: Pulse wave of the highest priority arterial blood pressure
SpO2: SpO2 pulse
To display the pulse rate to the left of the heart rate on the home screen,
select ON for <PR DISPLAY>. This setting is only available when <SYNC
SOURCE> is set to ECG.
3. Press the [Home] key to return to the home screen.
1.46 User’s Guide Part II BSM-6000
1. ECG MONITORING
Selecting Sync Sound Pitch
* The AY-661P and AY-663P input
unit and BSM-1763 bedside
monitor are not available in the
US.
1
The sync sound can be variable pitch or xed pitch pips. The xed pitch is high
pitch as the default, but medium or low pitch can also be set on the SYSTEM
SETUP window (see Section 3 of the Administrator’s Guide). When you select
variable pitch, the pitch of the sync sound changes according to SpO2 value or
systolic BP value of the arterial blood pressure so that you can recognize the
change on the patient from the pitch of the sync sound without looking at the
monitor. The sync pitch can also be changed on the SpO2 and PRESS windows.
When using an AY-661P*, AY-663P*, AY-671P or AY-673P input unit or
BSM-1700 series bedside monitor*, the sync sound pitch can be set to change
according to the SpO2 value of the second SpO2 (SpO2-2) when monitoring dual
SpO2.
When the sync sound source is set to SpO2 and the SpO2 value is below
81%SpO2, the low pitch is automatically selected.
When the sync sound source is set to SpO2 and the “CHECK PROBE” or
“DETECTING PULSE” message is displayed on the screen, the sync sound
stops.
When the sync sound source is set to ECG or PRESS, the sync pitch is set
to SpO2 and the SpO2 cannot be displayed on the screen, the low pitch is
automatically selected.
When the sync sound source is set to ECG or SpO2, the sync pitch is set
to PRESS and the IBP cannot be displayed on the screen, the low pitch is
automatically selected.
When the sync sound source is set to ECG or SpO2 and the IBP connection cord
is disconnected, the low pitch is automatically selected. After connecting the IBP
connection cord, adjust zero balance.
1. Display the OTHER page of the ECG window.
Press the [Menu] key → ECG key → OTHER tab.
2. Select the sync sound pitch from the <SYNC PITCH> box.
FIXED: The pitch is xed to the pitch selected on the SYSTEM
SETUP window.
PRESS: The pitch is high when the BP value is above 120 mmHg.
The pitch is low when the BP value is below 20 mmHg.
The pitch changes from high to low in 20 steps for each
5 mmHg change between 120 and 20 mmHg BP value.
The BP value of the highest priority arterial blood
pressure is used.
User’s Guide Part II BSM-6000 1.47
1. ECG MONITORING
SpO2 and SpO2-2: The pitch changes in 20 steps from high to low for each
1%SpO2 change in SpO2 value between 100%SpO2 and
81%SpO2.
When the SpO2 is selected, the pitch changes according
to the SpO2 value acquired from the SpO2 socket. When
the SpO2-2 is selected, the pitch changes according to the
second SpO2 (SpO2-2) value acquired from the MULTI
socket. (SpO2-2 is only available when using an AY-661P,
AY-663P, AY-671P or AY-673P input unit or BSM-1700
series bedside monitor.)
3. Press the [Home] key to return to the home screen.
1.48 User’s Guide Part II BSM-6000
1. ECG MONITORING
grounding for monitor
Bedside monitor
Power supply and
grounding for ESU
Use with an Electrosurgical Unit
For use with an electrosurgical unit (ESU), this monitor has a circuit to
protect the patient from skin burn and to reduce ESU interference on the ECG
waveform. However, the effectiveness of this circuit depends on electrode
position and monitor setup. With an ESU, pay attention to the following points.
When the monitor is used with an electrosurgical unit (ESU), firmly
attach the entire area of the ESU return plate. Otherwise, the current
from the ESU flows into the electrodes of the monitor, causing
electrical burn where the electrodes are attached. For details, refer to
the ESU manual.
When using the monitor with an ESU, locate the monitor and ESU
appropriately and ground instruments properly. Otherwise noise from
the ESU may interfere with the ECG and the heart rate and
arrhythmia analysis may be incorrect.
1
WARNING
CAUTION
• Arrangement
Install the monitor as far from the ESU as possible. If possible, locate them on
opposite sides of the operating table.
• Power supply
Noise from the ESU may interfere with the ECG signal through the AC power
line. Supply power to the monitor and ESU from different outlets located as far
from each other as possible. Do the equipotential grounding properly.
3 electrodes
Power supply and
ESU
Operating table
User’s Guide Part II BSM-6000 1.49
• Measure with 3-electrode lead
Use the minimum number of electrodes. Use new electrodes.
1. ECG MONITORING
Make small
As far as possible from electrode and
as near as possible to incision.
• Minimize noise
1. Select an ECG lead where the active ECG electrodes are located as far
from the incision as possible.
2. Position the + and – electrodes as close as possible.
3. Select the leads where the angle (θ) between the active electrodes and the
incision is as small as possible.
4. Set the electrosurgical return plate as close to the incision as possible.
Return plate
Incision
• Set the following items on the OTHER page of the ECG window.
FILTERS: MAXIMUM
SYNC SOURCE: SpO2 or PRESS
• Monitor respiration by thermistor method or monitor CO
2
Noise is superimposed on the waveform and the respiration rate cannot be
monitored accurately in the impedance method. When monitoring respiration,
turn respiration monitoring off or monitor the respiration by thermistor method
or monitor CO2.
1.50 User’s Guide Part II BSM-6000
Section 2 Respiration Monitoring
General ................................................................................................................................................................ 2.2
Changing the Monitoring Lead in Impedance Method............................................................................. 2.10
Changing the Respiration Sensitivity .......................................................................................................2.11
Turning Respiration Measurement On or Off in Impedance Method ....................................................... 2.12
Changing the Respiration Rate and Apnea Alarm Limits ........................................................................ 2.13
Changing the Respiration Waveform Sweep Speed................................................................................2.14
Displaying Impedance Method Respiration Rate as the Second Respiration Parameter ........................2.15
2
User’s Guide Part II BSM-6000 2.1
2. RESPIRATION MONITORING
General
Measurement Method
On this monitor, respiration can be measured by two methods: impedance
method and thermistor method. When respiration is measured by both the
impedance method and thermistor method, the values measured by the thermistor
method is used.
Impedance Method
In the impedance method, respiration is measured and monitored by attaching
the ECG electrodes to the patient and connecting them to the ECG/RESP socket.
This method measures changes in impedance between the R and F (RA and LL)
or R and L (RA and LA) ECG electrodes.
WARNING
The bioelectric impedance measurement sensor of a minute
ventilation rate-adaptive implantable pacemaker may be affected by
cardiac monitoring and diagnostic equipment which is connected
to the same patient. If this occurs, the pacemaker may pace at its
maximum rate and give incorrect data to the monitor or diagnostic
equipment. In this case, set the <IMPEDANCE MEASUREMENT>
on the RESP/CO2 window to OFF on the bedside monitor. For
a patient that requires the respiration monitoring, measure the
respiration by thermistor method.
Thermistor Method
In the thermistor method, respiration is measured and monitored by attaching the
respiration pickup to the patient or connecting it to the respiration circuit, and
connecting the respiration pickup to the MULTI socket.
This method measures and compares temperature changes caused by respiration
and inspiration using the respiration pickup.
Use this method when using an ESU or if measurement by the impedance
method is unavailable.
NOTE
The MULTI socket on the AY-660P input unit cannot be used for
monitoring respiration in thermistor method.
2.2 User’s Guide Part II BSM-6000
2. RESPIRATION MONITORING
Preparing for Respiration Monitoring in Impedance Method
Preparation Flowchart
The procedure is the same as for monitoring ECG.
1. Select the electrode lead.
2. Connect the electrode lead to the ECG connection cord and connect the ECG
connection cord to the ECG/RESP socket.
3. Attach the disposable electrodes to the patient and attach the electrode lead
to the electrodes. Attach R and F (RA and LL) or R and L (RA and LA) with
the lungs between the electrodes.
4. Monitoring starts. Set necessary settings.
2
User’s Guide Part II BSM-6000 2.3
2. RESPIRATION MONITORING
Electrode lead and position162 cm 47 kg female
Electrode Position and Waveform Examples
Respiration can be measured by the impedance method when the R (RA) and F
(LL) or R (RA) and L (LA) electrodes are placed so that the lungs are between
the electrodes.
The optimum electrode positions for ECG monitoring of a patient are not always
optimum for respiration monitoring of the patient. Select the optimum positions
for both ECG and respiration measurements or measure respiration by the
thermistor method.
The amplitude of the respiration waveform differs according to the electrode
position. The following shows different examples of respiration waveforms
according to the electrode position when monitoring with the impedance method.
R/RA
L/LA
1
F/LL
Standard R-F/RA-LL
R/RA
2
R-L/RA-LA
R/RA
L/LA
F/LL
L/LA
3
153 cm 45 kg female
F/LL
R-F/RA-LL with higher F/LL position
2.4 User’s Guide Part II BSM-6000
Electrode Position
170 cm 60 kg male179 cm 94 kg male
160 cm 50 kg male
2. RESPIRATION MONITORING
R or RAF or LLL or LA
Right infraclavicular fossa
1
Right infraclavicular fossa—Left infraclavicular fossa
2
Right infraclavicular fossa
3
Amplitude
Respiration measurement is inuenced by movement of the chest and abdomen. The
amplitude of the waveform changes greatly according to slight change of the F (LL)
1
electrode position. It also differs considerably between different patients.
Respiration measurement is inuenced by movement of the chest. Detects thoracic
2
respiration. There is a great difference in amplitude between different patients.
Respiration amplitude is large, and therefore, detection rate is good. The electrode
3
position is similar to lead II of the ECG. This position is highly recommended.
Lowest rib on the left
anterior axillary line
Fifth intercostal space on
the left midaxillary line
—
—
2
Connecting Cables and Attaching Disposable Electrodes
Connecting cables and attaching disposable electrodes are the same as for the
ECG monitoring. Refer to “Preparing for ECG Monitoring” in Section 1.
User’s Guide Part II BSM-6000 2.5
2. RESPIRATION MONITORING
Preparing for Respiration Monitoring in Thermistor Method
Preparation Flowchart
1. Select the respiration pickup.
2. Connect the respiration pickup to the MULTI socket.
3. Attach the respiration pickup to the respiration circuit.
4. Monitoring starts. Set necessary settings.
Respiration Pickups
CAUTION
Only use Nihon Kohden specified electrodes, probes, transducers,
thermistors and catheters. Otherwise, the maximum performance
from the monitor cannot be guaranteed.
Respiration pickup for nose TR-900P*
For measuring at nostrils.
* This part has not been checked for compliance with the MDD (Medical Device
Directive). For EC member countries, Nihon Kohden recommends the use of
parts that comply with MDD.
Respiration pickup for airway TR-910P Airway adapter YG-001P
For measuring with trachea intubation. Use with the TR-910P respiration pickup.
2.6 User’s Guide Part II BSM-6000
Connecting the Cable to the Unit
Connect the respiration pickup to the MULTI socket.
Attaching the Respiration Pickup
When Using Respiration Pickup for Nose
1. Place the tip of the respiration pickup at the front of the nostril.
2. RESPIRATION MONITORING
2
When connecting the TR-900P respiration pickup for nose
Airway adapter
Respiration pickup
2. Secure the lead wire and respiration pickup rmly to the cheek with surgical
tape.
When Using Respiration Pickup for Airway
1. Firmly insert the tip of the respiration pickup for airway into the small hole
on the airway adapter.
2. Connect the airway adapter to the airway tube (between the mouth and
Y-shaped tube).
User’s Guide Part II BSM-6000 2.7
2. RESPIRATION MONITORING
Monitoring Respiration
When preparation is done properly, the respiration waveform appears on the
screen.
NOTE
Increase in the temperature of the inspired air during monitoring in
thermistor method causes decrease in the temperature difference
between inspiration and expiration, and the amplitude of the respiration
waveform becomes small. When the inspiration temperature increases
higher than the expiration temperature, the phases of expiration and
inspiration may be reversed.
In impedance method, the respiration data do not appear on the screen when
respiration monitoring in impedance method is set to OFF (the “RESP OFF”
message appears). When using an ESU, noise is superimposed on the waveform
and the respiration measurement cannot be monitored accurately. When
respiration monitoring is necessary, use the thermistor method or monitor CO2.
NOTE
• The respiration rate can only be detected from one parameter. When
, respiration and anesthetic gas are monitored at the same time, the
CO
2
respiration rate is detected in the following priority.
Gas > FLOW > CO2 > thermistor respiration > impedance respiration
• When ON is selected at <DISPLAY IMP-RR AS SECOND
PARAMETER> on the OTHER page of the RESP/CO2 window,
the respiration rate is detected from two parameters. Refer to the
“Displaying Impedance Method Respiration Rate as the Second
Respiration Parameter” section.
2.8 User’s Guide Part II BSM-6000
Respiration Information on the Home Screen
In impedance method
2. RESPIRATION MONITORING
2
Respiration sync mark
Respiration rate
In thermistor method
Scale of respiration rate trendgraph
Respiration rate trendgraph
Compressed respiration waveform
Sensitivity
Respiration waveform
Sensitivity
Respiration rate
Respiration waveform
User’s Guide Part II BSM-6000 2.9
2. RESPIRATION MONITORING
Changing Respiration Settings
Change settings on the RESP/CO2 window. The following settings can be
changed for respiration monitoring.
For impedance method
• Changing monitoring lead
• Turning respiration monitoring on or off
• Displaying respiration rate as the second parameter
• Respiration sensitivity
• Respiration rate and apnea alarm limits
• Respiration waveform sweep speed
For thermistor method
• Respiration sensitivity
• Respiration rate and apnea alarm limits
• Respiration waveform sweep speed
The noise reduction for impedance respiration monitoring can be turned on or
off and the respiration data display color can be set on the SYSTEM SETUP
window. Refer to Section 3 of the Administrator’s Guide.
The scale of the respiration rate trendgraph on the home screen is the same scale
as the trendgraph of the Review window. Refer to the Operator’s Manual or
Section 6 of the User’s Guide Part I.
If the APNEA alarm occurs and no action is taken for a selected duration, the
alarm level can be escalated. Refer to Section 3 of the Administrator’s Guide.
Changing the Monitoring Lead in Impedance Method
The lead which can be monitored in the impedance method is R-F (RA-LL) or
R-L (RA-LA). The selected lead appears on both the home screen and RESP/CO2
window.
1. Display the MAIN page of the RESP/CO2 window.
Press the [Menu] key → RESP/CO2 key → MAIN tab.
2.10 User’s Guide Part II BSM-6000
Respiration waveform
2. RESPIRATION MONITORING
2. Select the lead in the <IMPEDANCE RESP LEAD> box. Select the lead
with the larger respiration amplitude and smaller heart beat.
2
3. Press the [Home] key to return to the home screen.
Changing the Respiration Sensitivity
The sensitivity determines the size of the waveform on both the screen and
recording paper.
The respiration waveform amplitude differs according to the sensitivity and the
NOISE REDUCTION ON IMPEDANCE RESP setting on the SYSTEM SETUP
window. The following amplitudes for the respiration rate can be counted. Refer
to Section 3 of the Administrator’s Guide for the NOISE REDUCTION ON
IMPEDANCE RESP setting.
NOISE REDUCTION ON
IMPEDANCE RESP Setting
ON
Sensitivity
× 1/4
× 1/2
× 1
× 2
Countable Amplitudes
for the Respiration Rate
Larger than 0.375 mm
Larger than 0.75 mm
Larger than 1.5 mm
Larger than 3 mm
× 4
Larger than 6 mm
OFFAll sensitivities Larger than 10 mm
In thermistor method, countable amplitudes for the respiration rate is the same as
when the NOISE REDUCTION ON IMPEDANCE RESP setting is set to ON.
1. Display the MAIN page of the RESP/CO
window.
2
Press the [Menu] key → RESP/CO2 key → MAIN tab.
User’s Guide Part II BSM-6000 2.11
2. RESPIRATION MONITORING
2. Select the appropriate sensitivity from ×1/4, ×1/2, ×1, ×2 and ×4 in the
<SENSITIVITY> box.
3. Press the [Home] key to return to the home screen.
Turning Respiration Measurement On or Off in Impedance Method
Even when respiration measurement is set up, you can turn respiration
measurement off if you do not need it. When respiration is turned off, respiration
waveform does not appear and the “RESP OFF” message appears on the home
screen. When respiration is not available, no respiration data appears.
When monitoring respiration in thermistor method and not in impedance method,
turn this setting to OFF.
NOTE
When using an ESU, noise is superimposed on the waveform and
the respiration measurement cannot be monitored accurately. When
respiration monitoring is necessary, use the thermistor method or monitor
CO2.
1. Display the OTHER page of the RESP/CO2 window.
Press the [Menu] key → RESP/CO2 key → OTHER tab.
2. Select ON or OFF in the <IMPEDANCE MEASUREMENT> box to turn
impedance measurement on or off.
3. Press the [Home] key to return to the home screen.
2.12 User’s Guide Part II BSM-6000
Changing the Respiration Rate and Apnea Alarm Limits
2. RESPIRATION MONITORING
CAUTION
When the alarm limit is set to OFF, there will be no alarm for that
limit. Be careful when you set the alarm limit to OFF.
You can set the upper and lower respiration rate and apnea alarm limits on
the RESP/CO2 window. You can set all alarms, including the upper and lower
respiration rate and apnea alarm limits, on the ALARM LIMITS window (See
the Operator’s Manual or Section 5 of the User’s Guide Part I). You can also set
the upper and lower respiration rate and apnea alarm limits on the CO2, GAS and
FLOW/Paw windows. (FLOW/Paw window is not available for BSM-6000A
series.)
Setting Range
Respiration rate upper limit: 2 to 150 counts/min in 2 counts/min steps, OFF
(default setting: OFF)*1*
Respiration rate lower limit: OFF, 0 to 148 counts/min in 2 counts/min steps
(default setting: OFF)*1*
Apnea upper limit: 5 to 40 s in 5 s steps, OFF (default setting: 20)*1*
1
On BSM-6000A series, if <CRISIS VITAL ALARM MANAGEMENT> on the SYSTEM
*
CONFIGURATION screen is turned on and “ALARM PRIORITY” on the SYSTEM SETUP
window is set to CRISIS, the alarm setting is set to the alarm master setting.
2
On BSM-6000A series, if <ALARM CAP> on the SYSTEM CONFIGURATION screen is
*
turned on, the alarm setting is affected by the “ALARM CAP” setting on the SYSTEM SETUP
window.
2
2
2
2
1. Display the MAIN page of the RESP/CO2 window.
Press the [Menu] key → RESP/CO2 key → MAIN tab.
2. Touch the RR key to change the respiration rate alarm setting.
Touch the APNEA key to change the apnea alarm setting.
Current value
of the selected
parameter
Upper limit slider
Upper limit
Setting bar
Lower limit
Lower limit slider
Selected parameter
Current value of the selected parameter
User’s Guide Part II BSM-6000 2.13
2. RESPIRATION MONITORING
3. Touch and drag the sliders to the desired level on the setting bar. Use the
or key to adjust the setting.
If the upper limit is set to a value above the maximum, the upper limit alarm
is set to OFF. If the lower limit is set to a value below the minimum, the
lower limit alarm is set to OFF.
4. Press the [Home] key to return to the home screen.
Changing the Respiration Waveform Sweep Speed
The respiration waveform sweep speed on the screen can be selected. This
setting can also be changed on the WAVES page of the DISPLAY window.
1. Display the OTHER page of the RESP/CO2 window.
Press the [Menu] key → RESP/CO2 key → OTHER tab.
2. Select the sweep speed from the <RESP/CO2 SWEEP SPEED> box.
3. Press the [Home] key to return to the home screen.
2.14 User’s Guide Part II BSM-6000
2. RESPIRATION MONITORING
Displaying Impedance Method Respiration Rate as the Second Respiration Parameter
Respiration rate by impedance method can be displayed as a second respiration
rate parameter together with the rst respiration rate parameter. The method of
the rst respiration rate parameter is displayed in the following priority.
Gas > FLOW > CO2 > thermistor respiration
Turn this setting on when displaying two measured values of respiration rate.
1. Display the OTHER page of the RESP/CO2 window.
Press the [Menu] key → RESP/CO2 key → OTHER tab.
2. Select ON or OFF from the <DISPLAY IMP-RR AS SECOND
PARAMETER> box.
ON: Respiration rate by impedance method is displayed on the home
screen.
OFF: Respiration rate by impedance method is not displayed. Only the rst
respiration rate parameter is displayed on the home screen.
2
Display example for ONDisplay example for OFF
First RR parameter only
First RR parameter
RR by impedance method
3. Press the [Home] key to return to the home screen.
User’s Guide Part II BSM-6000 2.15
Section 3 CO2 Monitoring
General ................................................................................................................................................................ 3.2
Measurement Error with the TG-900P or TG-920P CO2 Sensor Kit .......................................................... 3.3
Use with Volatile Anesthetic Agents .......................................................................................................... 3.5
Preparing for CO2 Monitoring .............................................................................................................................. 3.6
Types of CO2 Sensor Kits for Mainstream Method ....................................................................................3.7
TG-900P CO2 Sensor Kit ................................................................................................................ 3.8
TG-920P CO2 Sensor Kit ................................................................................................................ 3.9
TG-950P CO2 Sensor Kit .............................................................................................................. 3.10
TG-970P and TG-980P CO2 Sensor Kits ...................................................................................... 3.11
Connecting the CO2 Sensor Kit to the Unit .............................................................................................. 3.12
Connecting the CO2 Sensor Kit to the Respiration Circuit .......................................................................3.12
Performing Zero Calibration when Using a TG-950P, TG-970P or TG-980P CO2 Sensor Kit .................. 3.12
Calibrating by Air ........................................................................................................................... 3.13
Calibrating with N2 Gas ................................................................................................................. 3.14
Monitoring CO2 .................................................................................................................................................. 3.15
CO2 Information on the Home Screen ..................................................................................................... 3.16
Changing CO2 Settings ...................................................................................................................................... 3.18
Changing the Scale ................................................................................................................................. 3.18
Changing the CO2, Respiration Rate and Apnea Alarm Limits ............................................................... 3.19
Setting the Inspiration Composition .........................................................................................................3.20
Changing the CO2 Waveform Sweep Speed ........................................................................................... 3.21
Changing Duration for Holding ETCO2 Maximum Value ..........................................................................3.22
Inspection of Measuring Accuracy ..................................................................................................................... 3.24
Daily Inspection of Measuring Accuracy ................................................................................................. 3.24
Inspection of Measuring Accuracy (Precise Method) .............................................................................. 3.24
3
User’s Guide Part II BSM-6000 3.1
3. CO2 MONITORING
General
On this monitor, CO2 can be measured by either mainstream method or
sidestream method.
To monitor CO2 by the mainstream method, connect the TG-900P, TG-920P,
TG-950P, TG-970P or TG-980P CO2 sensor kit to the patient’s respiration circuit
or directly to the patient and connect the CO2 sensor kit to the MULTI socket or
PRESS CO2 socket.
NOTE
The TG-950P CO2 sensor kit is not available for BSM-6000A series.
To monitor CO2 by the sidestream method, the optional AG-400R CO2 unit,
Oridion portable bedside monitor Microcap® or Covidien Microstream
®
Micropod™ capnography module is required.
Mainstream Method
To use the AG-400R CO2 unit, the QF-905P interface is required. For details on
the sidestream method, refer to the AG-400R CO2 unit operator’s manual.
To connect the Microcap® monitor, the QF-921P interface is required. Microcap
is a registered trademark of Oridion Medical Ltd.
To connect the Micropod™ capnography module, the QF-801P interface is
required. Micropod™ is a trademark of Covidien.
NOTE
• The AG-400R CO2 unit is not available for BSM-6000A series.
• Oridion Microcap® portable bedside monitor is not available for
BSM-6000K series.
In the mainstream method, the sensor is located directly in the respiration circuit.
There are two types of sensors for different calculation methods.
Semi-quantitative method using the TG-900P or TG-920P CO2 sensor kit
Measurements are based on the assumption of no CO2 gas in the inspiration.
The CO2 concentration in the respiration is calculated by taking the CO2
concentration in the inspiration as 0 mmHg (0 kPa).
Quantitative method using the TG-950P, TG-970P or TG-980P CO2 sensor
kit
The CO2 partial pressure in both inspiration and expiration is measured.
3.2 User’s Guide Part II BSM-6000
3. CO2 MONITORING
The mainstream CO2 measurement method has the following merits and limits
compared to the sidestream method. Understand these points when performing
measurements.
Sidestream Method
Merits
• No delay in the measurement time.
• Measurement is stable over a long period of time.
• Few measurement troubles due to mixture of water droplets.
Limits
• TG-900P, TG-950P, TG-970P or TG-980P CO2 sensor kit cannot be used on
non-intubated patients.
• Due to the weight of the TG-900P, TG-950P, TG-970P or TG-980P CO2 sensor
kit, load is easily imposed on the tracheal tube.
• The dead space volume is relatively large.
A small portion of the breath is continuously sampled from the respiratory circuit
or directly from the patient’s nostril. CO2 molecules in the breath sample absorb
infrared light at 4.3 µm. The absorption is proportional to the concentration
of the CO2 and the concentration can be determined by comparing the level of
absorption to that of a known standard.
3
The sidestream CO2 measurement method has the following merits and limits
compared to the mainstream method. Understand these points when performing
measurements.
NOTE
• The AG-400R CO2 unit is not available for BSM-6000A series.
• Oridion Microcap® portable bedside monitor is not available for
BSM-6000K series.
Merits
• CO2 sensor adapter can be used on non-intubated patients.
• Lightweight adapter reduces risk of extubations.