Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Reexamination Certificate
2011-07-26
2011-07-26
Layno, Carl H. (Department: 3766)
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
C607S017000
Reexamination Certificate
active
07986993
ABSTRACT:
An implantable cardiac stimulation device provides AV interval hysteresis to promote intrinsic conduction while providing PMT avoidance. The device comprises a pulse generator that provides atrial and ventricular pacing stimulation pulses on demand separated by an AV interval, an AV hysteresis circuit that extends the AV interval from a base AV interval to an extended AV interval to promote intrinsic heart activity, and a refractory circuit that establishes a PVARP following each provided ventricular pacing pulse including a lengthened PVARP longer in duration than a normal PVARP responsive to the AV hysteresis circuit extending the AV interval from the base AV interval to the extended AV interval.
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Layno Carl H.
Morales Jon-Eric C.
Pacesetter Inc.
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