System and method for cardiac rhythm management with dynamically adjusted synchronized chamber pacing protection period
First Claim
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1. A cardiac rhythm management device, comprising:
- sensing channels for sensing intrinsic depolarizations in heart chambers designated as a rate chamber and a synchronized chamber and generating sense signals in accordance therewith;
a controller for controlling the delivery of paces in accordance with a programmed pacing mode;
wherein the controller is programmed to pace the synchronized chamber in accordance with a synchronized pacing mode based upon rate chamber events and wherein pacing of the synchronized chamber is inhibited during a synchronized chamber protection period that is initiated by a synchronized chamber sense or pace; and
, wherein the controller is further programmed to adjust the duration of the synchronized chamber protection period based upon detection of a repolarization in the synchronized chamber.
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Abstract
A device and method for cardiac rhythm management in which one heart chamber, designated as the synchronized chamber, is paced in accordance with a pacing mode that employs sense signals from the opposite chamber, designated as the rate chamber. A synchronized chamber protection period triggered by an intrinsic or paced beat in the synchronized chamber is used to inhibit pacing without otherwise disturbing the pacing algorithm. The duration of the synchronized chamber protection period is dynamically adjusted based upon detection of a repolarization in the synchronized chamber
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Citations
27 Claims
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1. A cardiac rhythm management device, comprising:
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sensing channels for sensing intrinsic depolarizations in heart chambers designated as a rate chamber and a synchronized chamber and generating sense signals in accordance therewith;
a controller for controlling the delivery of paces in accordance with a programmed pacing mode;
wherein the controller is programmed to pace the synchronized chamber in accordance with a synchronized pacing mode based upon rate chamber events and wherein pacing of the synchronized chamber is inhibited during a synchronized chamber protection period that is initiated by a synchronized chamber sense or pace; and
,wherein the controller is further programmed to adjust the duration of the synchronized chamber protection period based upon detection of a repolarization in the synchronized chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for operating a cardiac rhythm management device, comprising:
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sensing intrinsic depolarizations in heart chambers designated as a rate chamber and a synchronized chamber and generating sense signals in accordance therewith;
pacing the synchronized chamber in accordance with a synchronized pacing mode based upon rate chamber events, wherein pacing of the synchronized chamber is inhibited during a synchronized chamber protection period that is initiated by a synchronized chamber sense or pace; and
,adjusting the duration of the synchronized chamber protection period based upon detection of a repolarization in the synchronized chamber. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification