MULTI-CHAMBER INTRACARDIAC PACING SYSTEM
First Claim
1. A medical device system, comprisinga first implantable pacemaker;
- anda second implantable pacemaker;
the first implantable pacemaker comprising;
a first sensing module configured to receive a first cardiac electrical signal via a pair of electrodes and sense from the cardiac electrical signal near field intrinsic cardiac events occurring in a first heart chamber, far field intrinsic events occurring in a second heart chamber different than the first heart chamber, and far field pacing pulses, the far field pacing pulses being pacing pulses delivered in the second heart chamber by the second implantable pacemaker;
a first pulse generator coupled to the pair electrodes for delivering a cardiac pacing pulse to the first heart chamber; and
a first control module configured to;
set a first pacing escape interval in response to a far field pacing pulse sensed by the first sensing module;
permit the first pacing escape interval to continue without restarting the first pacing escape interval in response to a far field intrinsic event sensed by the first sensing module during the first pacing escape interval; and
control the pulse generator to deliver the cardiac pacing pulse to the first heart chamber upon expiration of the first pacing escape interval.
1 Assignment
0 Petitions
Accused Products
Abstract
The control module of a first pacemaker included in an implantable medical device system including the first pacemaker and a second pacemaker is configured to set a pacing escape interval in response to a far field pacing pulse sensed by the first pacemaker. The far field pacing pulse is a pacing pulse delivered by the second pacemaker. The pacing escape interval is allowed to continue without restarting the in response to a far field intrinsic event sensed by the first pacemaker during the pacing escape interval. The first pacemaker delivers a cardiac pacing pulse to the heart upon expiration of the pacing escape interval.
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Citations
21 Claims
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1. A medical device system, comprising
a first implantable pacemaker; - and
a second implantable pacemaker; the first implantable pacemaker comprising; a first sensing module configured to receive a first cardiac electrical signal via a pair of electrodes and sense from the cardiac electrical signal near field intrinsic cardiac events occurring in a first heart chamber, far field intrinsic events occurring in a second heart chamber different than the first heart chamber, and far field pacing pulses, the far field pacing pulses being pacing pulses delivered in the second heart chamber by the second implantable pacemaker; a first pulse generator coupled to the pair electrodes for delivering a cardiac pacing pulse to the first heart chamber; and a first control module configured to; set a first pacing escape interval in response to a far field pacing pulse sensed by the first sensing module; permit the first pacing escape interval to continue without restarting the first pacing escape interval in response to a far field intrinsic event sensed by the first sensing module during the first pacing escape interval; and control the pulse generator to deliver the cardiac pacing pulse to the first heart chamber upon expiration of the first pacing escape interval. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method performed by an implantable medical device system including a first implantable pacemaker and a second implantable pacemaker, the method comprising:
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sensing from a cardiac electrical signal received by a first sensing module of the first implantable pacemaker; near field intrinsic cardiac events occurring in a first heart chamber, far field intrinsic events occurring in a second heart chamber different than the first heart chamber, and far field pacing pulses, the far field pacing pulses being pacing pulses delivered in the second heart chamber by the second implantable pacemaker; setting a first pacing escape interval in response to a far field pacing pulse sensed by the first sensing module; allowing the first pacing escape interval to continue without restarting the first pacing escape interval in response to a far field intrinsic event sensed by the first sensing module during the first pacing escape interval; and controlling a pulse generator to deliver a cardiac pacing pulse to the first heart chamber upon expiration of the first pacing escape interval. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A non-transitory, computer-readable storage medium storing a set of instructions that, when executed by a control module of a first implantable pacemaker of an medical device system including the first implantable pacemaker and a second implantable pacemaker, cause the system to:
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sense from a cardiac electrical signal received by a first sensing module of the first implantable pacemaker near field intrinsic cardiac events occurring in a first heart chamber, far field intrinsic events occurring in a second heart chamber different than the first heart chamber, and far field pacing pulses, the far field pacing pulses being pacing pulses delivered in the second heart chamber by the second implantable pacemaker; setting a first pacing escape interval in response to a far field pacing pulse sensed by the first sensing module; allowing the first pacing escape interval to continue without restarting the first pacing escape interval in response to a far field intrinsic event sensed by the sensing module during the first pacing escape interval; and controlling a pulse generator to deliver a cardiac pacing pulse to the first heart chamber upon expiration of the first pacing escape interval.
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Specification