Implantable cardiac device providing mode switching and...

Details Implantable cardiac device providing mode switching and... Implantable cardiac device providing mode switching and...

2007-07-17

2007-07-17

Layno, Carl (Department: 3766)

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

C607S011000, C607S014000, C607S018000, C607S028000, C607S029000, C128S901000

Reexamination Certificate

active

10465364

ABSTRACT:
An implantable cardiac stimulation device, mode switchable between atrial tracking and atrial non-tracking pacing modes includes a threshold control for controlling atrial sensing threshold. The threshold control reduces the sensing threshold from a first threshold used during the atrial tracking pacing mode to a second threshold between the first threshold and the noise for use during the atrial non-tracking pacing mode. The necessity for readjusting the atrial sensing threshold is based upon the ratio of the sensing threshold and atrial amplitudes or upon a diagnostic distribution of atrial amplitudes.

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