Pulse oximeter with improved accuracy and response time

Details Pulse oximeter with improved accuracy and response time Pulse oximeter with improved accuracy and response time

1989-11-01

1993-03-02

Howell, Kyle L.

Surgery

Truss

Pad

356 41, A61B 502

Patent

active

051900386

ABSTRACT:
An improved pulse oximeter for the measurement of oxygen saturation in the blood, which is faster and more accurate than conventional pulse oximeter. Improved speed and accuracy is attained by elimination of normalization and feedback circuitry and the use of analog to digital converting devices having a wide dynamic range along with a sophisticated computer analysis. The instant invention eliminates inaccurcies resulting from channel matching errors, and detects and eliminates aberrant input data.

REFERENCES:
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Oximet brochure for Oximet pulse Oximeter Model MET-1471, from Mochida.
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Schematics of Biox pulse oximeters models II, IIa, III and IV, from Biox Technology, Boulder, Colo.
Block schematic diagram of Ohmeda 3700 pulse Oximeter.

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