AFE4404: What do you mean by Clinical fingerprintip pulse oximetry?

Hi,

It's highly suggested/recommended to do some study about the PPG, SpO2, Clinical finger tip pulse oximetry.

SpO2 is a high level(super set) term for (S)aturation (O2)xygen particular in (p)eripheral, where peripheral could be/mean any peripheral depending on people's definition/usage as long as it's not directly into the blood, not around the heart region/area.

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Peripheral oxygen saturation (SpO₂) is an estimation of the oxygen saturation level usually measured with a pulse oximeter device. It can be calculated with pulse oximetry 

Pulse oximetry is a method used to estimate the percentage of oxygen bound to hemoglobin in the blood.This approximation to SaO₂ is designated SpO₂ (peripheral oxygen saturation). The pulse oximeter consists of a small device that clips to the body (typically a finger, an earlobe or an infant's foot) and transfers its readings to a reading meter by wire or wirelessly. The device uses light-emitting diodes of different colours in conjunction with a light-sensitive sensor to measure the absorption of red and infrared light in the extremity. The difference in absorption between oxygenated and deoxygenated hemoglobin makes the calculation possible.

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Regarding to "Does that mean that AFE4404 is not suitable for measuring SPO2 on the wrist?" -

Whether it can be used on the which peripheral parts/areas and the related performance, it depends on customer's products designs(particular opticals, mechanical opticals and algorithms, etc), not really related to the chip.

Regarding to "Or it can be measured on the wrist, but does it mean that the fingers come out better?"-

Overall and/or in general, finger tips with transmitted optical approaches may yield better results.

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It's highly suggested/recommended to do some basic study and research to understand the PPG, SpO2, pulse oximeter in different approaches.

Thanks

Thank you for your reply.

ChienChun Yang said:

Peripheral oxygen saturation (SpO₂) is an estimation of the oxygen saturation level usually measured with a pulse oximeter device. It can be calculated with pulse oximetry 

I mean, I can get Peripheral Oxygen saturation (SpO2) with pulse oximetry, but why did you divide it up in chip applications?

Ex. AFE4404 applications - fingertip pulse oximetry,        AFE4432 applications - SPO2

Thank you.