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What is pulse oximetry

Pulse oximetry is a method of monitoring the heart rate and the level of oxygen in the bloodstream. Pulse oximetry is used mostly in hospitals but is gradually finding its way into home use and becoming popular with family doctors. It uses optical sensors and light-emitting diodes (LEDs) emitting light at different wavelengths through a finger tip where the transmitted light is detected using an optical sensor. Based on the principle of oxygenated hemoglobin having a higher absorption coefficient for infrared light than deoxygenated hemoglobin while deoxygenated hemoglobin absorbs more red light, by taking the ratio of absorbed red light to infrared light, the oxygen saturation level can be obtained.

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Meditech Equipment Co.,Ltd is part of Meditech Group. Product(s) described may not be licensed or available for sale in all countries. Sonotech, Sonovet, iSonic, FOs2pro, Dolphi, Defi, HeartRec,miniScan,Cardios,SpirOx,iBreath, Meditech and all corresponding design marks are trademarks of Meditech. The symbol indicates the trademark is registered. Patent and Trademark Office and certain other countries. All other names and marks mentioned are the trade names, trademarks or service marks of their respective owners. Please see the Instructions for Use for a complete listing of the indications, contraindications, warnings and precautions.

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What is pulse oximetry

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