Electronic processor for pulse oximeter

Details Electronic processor for pulse oximeter Electronic processor for pulse oximeter

1993-03-31

1994-09-20

Sykes, Angela D.

Surgery

Truss

Pad

128664, 128666, 356 41, A61B 500

Patent

active

053480040

ABSTRACT:
An electronic processor for calculating in vivo blood oxygenation concentration levels using pulsed light that eliminates both requirements for comparing photosensor signal amplitudes with analog/digital circuit dynamic ranges and also adjusting electronic processor parameters. The invention uses monolithic a/d converters with expanded capacity and a microcontroller/processor with a pulse control module to synchronize switching in an oversampling demodulator with pulsing of light sources to overcome prior circuitry limitations that consumed substantial central processor capacity.

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