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What is a pulse oximeter — and how does it work?

May 27, 2020 By Lee Teschler

If you’re recovering from a respiratory problem — including COVID-19 — chances are you may have had your oxygen levels checked with a pulse oximeter.

Veridian Healthcare pulse oximeterPulse oximetry is the non-invasive measurement of oxygen saturation (SpO2). Oxygen saturation is defined as the amount of oxygen dissolved in the blood, based on the detection of Hemoglobin, Hb, and Deoxyhemoglobin, HbO2.

The typical pulse oximeter is a device that clamps on one of your fingers. Home-use oximeters are often battery-powered and self-contained with the oxygen level displayed on a built-in LCD along with heart rate.

Go to our WTWH Media sister site Microcontroller Tips and check out a teardown of a home-use pulse oximeter made by Veridian Healthcare in Illinois. 

 

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  • Medical Device Business
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  • Applications
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    • Orthopedic
    • Surgical
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