Dat T Truong

US Patent:

58738975, Feb 23, 1999

Filed:

Sep 19, 1997

Appl. No.:

8/934361

Inventors:

Randolph K. Armstrong - Missouri City TX
D. Curtis Deno - Missouri City TX
Douglas J. Cook - Missouri City TX
Dat H. Truong - Houston TX

Assignee:

Sulzer Intermedics Inc. - Angleton TX

International Classification:

A61N 500

US Classification:

607 14

Abstract:

A method and apparatus for classifying and treating tachyarrhythmias. A cardiac stimulator includes an algorithm that uses dual chamber sensing to determine the type of tachyarrhythmia detected. If the tachyarrhythmia is of a type that responds well to ventricular therapy, such as a tachyarrhythmia originating in the ventricle rather than the atrium, the tachyarrhythmia is grouped into a treatable category. Accordingly, the cardiac stimulator applies therapy, or therapies, to the ventricle to remedy the ventricular tachyarrhythmia.