Pulse Oximetry Theory Of Operation - Smiths Medical BCI Pulse Manual De Instrucciones

Chapter 2: Intended Use and Features
• Portable and lightweight. Weighs only 85
grams (3 ounces), with batteries.
• Uses two (2) standard "AAA" (type IEC LR03)
alkaline batteries.
• Battery life is approximately sixteen (16) hours
continuous use, 1400 spot checks (1 minute on
2 minutes off ), and 4 years shelf life.
• Bright, easy-to-read LED displays indicate SpO
and pulse rate measurements.
• Low battery indicator lights when about 30
minutes of battery use remains.
• The automatic power down turns the unit off
when not in use.

Pulse Oximetry Theory of Operation

The pulse oximeter determines %SpO
rate by passing two wavelengths of low intensity
light, one red and one infrared, through body
tissue to a photodetector. Information about
wavelength range can be especially useful to
clinicians. Wavelength information for this device
can be found in the SpO
this manual.
Pulse identification is accomplished by using
plethysmographic techniques, and oxygen
saturation measurements are determined using
spectrophotometric oximetry principles. During
12
Specifications section of
2
Finger Oximeter Operation Manual
and pulse
2
2