Implantable cardioversion device with a self-adjusting...

Details Implantable cardioversion device with a self-adjusting... Implantable cardioversion device with a self-adjusting...

2006-10-10

2006-10-10

Getzow, Scott M. (Department: 3762)

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

Reexamination Certificate

active

07120491

ABSTRACT:
In an implantable cardioversion device, the condition of the patient's heart is determined from an intrinsic ventricular parameter, such as the ventricular rate, and therapy is provided with a pulse generator, including, for instance, antitachycardia pacing therapy or defibrillation shocks. Initially, the conditions, i.e., ventricular tachycardia or fibrillation, are determined using predetermined values for a set of thresholds defining the various conditions. Thereafter, the thresholds are changed by increasing or decreasing the therapy thresholds from the predetermined values based on the morphology of the sensed ventricular signals.

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