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Cardiac Output Monitor Using Fuzzy Logic Blood Pressure Analysis

Abstract: 

A method of monitoring cardiac output. The method uses a blood pressure waveform as input. The waveform is digitized and various blood pressure features are extracted. The features are used as inputs to a fuzzy logic model, where each input is fuzzified by determining its degree of confidence as a member of one or more fuzzy membership regions. A rule base is applied to the defuzzified inputs to obtain a fuzzy stroke volume index. This output is defuzzied and used to calculate cardiac output.

Patent Number: 
6,007,491
Date Of Issue: 
12/28/1999
Inventors: 

Jian Ling;Dean Winter;Brian Robey