Cardiac stimulating device

Details Cardiac stimulating device Cardiac stimulating device

2005-10-04

2005-10-04

Layno, Carl (Department: 3762)

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

C607S015000, C607S017000

Reexamination Certificate

active

06952609

ABSTRACT:
An implantable cardiac stimulating device has an atrial pulse generator and an atrial sensor connected to an atrial electrode, for delivering stimulating pulses to the atrium and sensing events in the atrium. The stimulating device also has a ventricular pulse generator and a ventricular sensor connected to a ventricular electrode for delivering stimulating pulses to the ventricle and for sensing events in the ventricle. The ventricular sensor also includes an evoked response detector. A control unit causes the ventricular pulse generator to deliver a back-up pulse if no evoked response is detected. The control unit operates the atrial pulse generator in a first manner wherein no stimulating pulse is delivered to the atrium and in a second manner wherein stimulating pulses are delivered to the atrium. The control unit prevents delivery of the back-up pulse at least during a first heart cycle following a time at which the control unit changes from the first manner of operation of the atrial pulse generator to the second manner of operation.

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patent: 0 770 408 (1996-10-01), None

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