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

1995-03-16

1998-10-13

Bahr, Jennifer

Surgery

Diagnostic testing

Measuring or detecting nonradioactive constituent of body...

600336, 356 41, A61B 500

Patent

active

058205500

ABSTRACT:
An improved pulse oximeter apparatus and method for the measurement of oxygen saturation in the blood, which is faster and more accurate than conventional pulse oximeters. 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 inaccuricies resulting from channel matching errors, and detects and eliminates aberrant input data.

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Schematics of Biox Pulse Oximeter Models II, IIA, II and IV, from Biox Technology, Boulder, Colorado, 4 pages.

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