05190038 is referenced by 340 patents and cites 12 patents.

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.

Title
Pulse oximeter with improved accuracy and response time
Application Number
7/430612
Publication Number
5190038
Application Date
November 1, 1989
Publication Date
March 2, 1993
Inventor
Gregory L Morris
South Wales
GB
Michael J R Polson
Chesire
CT, US
Agent
Hopgood Calimafde Kalil Blaustein & Judlowe
Assignee
Novametrix Medical Systems
CT, US
IPC
A61B 5/02
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