Bionet Oxy9Wave Vet, Operation Manual

Page: 13 / 48

Oxy9Wave Vet
Operation manual
Ver. 1.52 2.Product description 13
2-4. GENERAL DESCRIPTION
Oxy9Wave Vet(Pulse oximetry) is a continuous, non-invasive method of measuring the level of
arterial oxygen saturation in blood. The measurement is taken by placing a sensor on a patient
–
usually on the animals tongue. The sensor is connected to the pulse oximetry instrument with
patient cable, collecting signal data from the patient and sending it to the instrument
The following figure shows the general monitoring setup:
2-5. PRINCIPLE OF OPERATION
Ox9Wave Vet uses the difference in absorbance that occurs when two lights with unique
wavelength pass through a substance with different density. The principle of spectrum
measurement is used. Specifically, it measures the ratio of absorbed red(664nm) and infrared
(860nm) light generated from these two light sources using the oxygen sensor after passing
through an artery such as that in the fingers while the heart is beating. In other words, it uses the
nature of absorbing more red light when passing through dark red blood which contains less
oxygen and absorbing more infrared light when passing through scarlet blood which contains lots
of oxygen.