Key Features
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4.2 Key Features
• Chest Sensor options: 3 lead-wire and 5 lead-wire (HR and ECG waveforms)
• RESP (measurement and waveform)
•SpO
2
% (measurement and waveform)
• TEMP (
o
C/
o
F) (Skin Temperature measurement)
• NIBP (single measurement, automatic measurements at predefined cycles and continuously)
• Touchscreen display
• Alarms and Alerts generated with visual and audible indication on the Monitor
• Self Test
4.3 Overview of Clinical Features
The ViSi Mobile Monitoring System is a lightweight portable patient vital signs monitor featuring a high
resolution, full color display with visual and audible alarms and alerts. The ViSi Mobile Monitor is
completely body-worn and designed to continuously measure ECG/HR, SpO
2
, PR, RESP, NIBP and
TEMP. The ECG, SpO
2
, and RESP. Waveforms are viewable on demand. NIBP can be measured as a one-
time measurement, automatically at programmed intervals or continuously.
The Monitor is powered by a rechargeable battery. For ease of use, the Monitor features interchangeable
plug-in sites for the ViSi Mobile Chest Sensor and ViSi Mobile Cuff Module. The Chest Sensor measures
the ECG/HR (with a 3 lead-wire or 5 lead-wire), RESP, and TEMP.
4.3.1 ECG Monitoring and Heart Rate (HR) Monitoring
With the 3 lead-wire Chest Sensor, the Monitor continuously monitors Lead II.
With the 5 lead-wire Chest Sensor, the Monitor continuously monitors seven ECG lead views
simultaneously, Leads I, II, III, aVR, aVL, aVF, and a V lead. The ECG waveform can be displayed one
lead at a time.
The ability to monitor multiple leads simultaneously improves beat detection to determine the HR and
minimizes false detections as a result of muscle artifact.
4.3.2 Respiration Rate (RESP) Monitoring
RESP is determined by measuring the AC impedance between the RA and LL ECG electrodes. Chest wall
motion, rise and fall, associated with inspiration and expiration is automatically detected when the RA and
LL leads are placed in the standard Lead II configuration on the chest, or in the MCL II position.
RESP is determined from the frequency of the respiration (chest wall motion). The respiration channel can
detect the absence of RESP.
Note: Respiration rate monitoring is an optional feature that requires an additional license key.
RESP (chest wall motion) can continue in the absence of ventilation
(obstructed airway). Do not rely on the RESP alone to determine adequacy
of ventilation. Other vital signs, such as HR and SpO2, should be assessed
as well.
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