Spo2 algoritham

Ajeesh Arakkal

Other Parts Discussed in Thread: AFE4403EVM

how to calculate SPo2 persentage level ?

I am using AFE 4490 and MSP430 .i got one source code for msp430xG43x. i used the same algoritham in MSP430 but getting value is different .

in that one they are using FIR, DC estimator i am not able to understant its logic. any one can we me me its logic details ?

can i use same function for fittering AFE 4490 's out put also(ADC out put is 22bit )?

over 10 years ago

0 Guilherme Borba over 10 years ago

TI__Intellectual 1910 points

Hello Ajeesh,

Please take a look at the following TI design: http://www.ti.com/tool/tida-00010. There, you will find the firmware that calculates SpO2 and heartrate. This may be helpful to you, but keep in mind that the code comes as is, and we do not support it. I hope this helps.

Regards,

Gui

0 STEPHEN HO over 10 years ago in reply to Guilherme Borba

Prodigy 40 points

Hi Gui,

I would like to know if the Spo2 algorithm in tida-00010 is working properly or not. Thanks.

Best Regards,
Stephen

0 Lijoy Philipose over 10 years ago in reply to STEPHEN HO

TI__Intellectual 1315 points

Hello Stephen,
The example SP02 algorithm worked for some subjects, using that transmissive sensor but not all. It doesn't dynamically adjust current and gain for low perfusion patients for example. You'll need to license or develop the algorithm yourself for your end product.
The main objective of the design is to help quickly prototype hardware. Hope this helps.

Best Regards,
Lijoy

0 STEPHEN HO over 10 years ago in reply to Lijoy Philipose

Prodigy 40 points

Hi Lijoy,

May I know if this SPO2 algorithm can be demonstrated in AFE4403EVM or not?

If yes, would you please advise the corresponding procedures? Thanks.

Best Regards,
Stephen

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Spo2 algoritham