Method for extracting timing parameters using a...

Details Method for extracting timing parameters using a... Method for extracting timing parameters using a...

2006-06-19

2009-08-04

Sykes, Angela D (Department: 3762)

Surgery

Diagnostic testing

Cardiovascular

Reexamination Certificate

active

07569020

ABSTRACT:
In a method and apparatus for measuring the ejection fraction in a mammalian heart, the opening and closing of a heart valve is sensed with an implanted sensor, and a pre-ejection period is measured as a function of the sensed opening and closing of the heart valve. The ventricular ejection time also is measured, and the ejection fraction is determined as a function of the measured pre-ejection period and the ejection time.

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