Chapter 6: Oximetry
6-2
Operation Manual SurgiVet
®
V3404 Plus
Patented Technology
The monitor’s oximetry incorporates patented technology and noise reducing hardware to enhance the
oximeter’s ability to detect pulse amplitude in patients with poor peripheral perfusion. Blood Pulse Detection
Method Using Autocorrelation, patent number 5,558,096, analyzes a digitized signal, in real time, and compares
it with previous pulse data. If similar characteristics to previous data are recognized, the device confirms a valid
pulse. In essence, an individual’s pulse data is retained and used as a template to accept or reject future pulse
signals. Patented technology, digital signal processing, and a greatly improved signal to noise ratio, provide for
improved performance.
Oximeter Display
Figure 6.2: Oximeter Display
A few seconds after the patient is attached, the SpO
2
measurement, pulse rate measurement, and pulse
bargraph should be shown.
NOTE: If measurements are not shown, check the patient attachment to make sure it is applied correctly.
Also check for oximeter messages in the alarm and alert message area and see Oximeter
Messages later in this chapter for help.
Plethysmogram
The plethysmogram is shown, assuming it is assigned to a trace. Press the a key to assign the
plethysmogram to a trace.
SpO
2
Measurement
The SpO
2
measurement is shown. Dashes (---) indicate the measurement is invalid or unavailable
Pulse Rate Measurement
The pulse rate measurement is shown. Dashes (---) indicate the measurement is invalid or unavailable.
Pulse Strength Bargraph
Indicates the patient’s pulse activity and strength. The bargraph is logarithmically scaled to indicate a wide
range of pulse strengths.
Messages
Oximeter alarm and alert messages appear on the second line of the message area at the upper left of the
display. If there are several messages to be displayed, then they alternate, showing one message every
second. For details on the oximeter messages, see
Oximeter Messages
later in this chapter.
Small Pulse
F°
100.2
5
3
4
1
2
3
4
5
2
1
