Implantable cardiac pacemaker with extended atrial sensing

Details Implantable cardiac pacemaker with extended atrial sensing Implantable cardiac pacemaker with extended atrial sensing

1991-07-24

1993-07-13

Howell, Kyle L.

Surgery

Truss

Pad

A61N 1368

Patent

active

052264149

ABSTRACT:
A pacemaker with a variable, asynchronous minimum heart rate and a second variable, synchronous heart rate. The second, variable heart rate has an absolute minimum, lower than the asynchronous minimum heart rate, which is preselected by the attending physician. The minimum heart rates can vary, conditioned upon sensed physiologic need. The cardiac pacemaker attempts to reestablish synchrony in every cycle, even if the intrinsic or natural atrial heart rate is below the asynchronous minimum heart rate in that cycle and can maintain cardiac synchrony at lower rates, thereby increasing cardiac efficiency and minimizing strain on the heart.

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patent: 4967746 (1990-11-01), Vandegriff

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