User's Manual

8
INTRODUCTION
►Intended for Use
The V-TRUST Handheld Pulse Oximeter is indicated for use in measuring and
displaying functional oxygen saturation of arterial hemoglobin (SpO
2
) and pulse
rate. It is intended for patients during no-motion condition. The oximeter is suitable
for use in hospital and clinical sites.
This device is indicated for non-invasive spot checking or continuous monitoring.
►General Description
The oximeter is a digital handheld that displays numerical values for blood oxygen
saturation. It provides visual alarm for medium priority conditions. The range of the
peak wavelengths and maximum optical output power of the light emitted by the
oximeter probe and the reading result can be especially useful to clinicians.
The oximeter with reusable SpO
2
probe accessories operates on battery power for
up to 40 hours. The oximeter requires no routine calibration or maintenance other
than replacement of alkaline batteries. When the batteries are low, the indicator will
blink to warn users to replace the batteries.
►Principle of Measurement
The V-TRUST Handheld Pulse Oximeter determines functional oxygen saturation
of arterial hemoglobin (SpO
2
) by measuring the absorption of red and infrared light
passing through perfused tissue. Changes in absorption caused by the pulsation of
blood in the vascular bed are used to determine oxygen saturation and pulse rate.