System and method for dual-chamber pacing
First Claim
1. A method for controlling cardiac pacing by an implantable medical device system comprising a first chamber pacemaker and a second chamber pacemaker, the method comprising:
- selecting by a control module of the first chamber pacemaker a first chamber pacing rate from a first plurality of selectable pacing rates;
automatically detecting atrioventricular (AV) block;
in response to detecting the AV block, establishing a second plurality of selectable pacing rates comprising fewer selectable pacing rates than the first plurality of selectable pacing rates;
selecting a first rate from the second plurality of selectable pacing rates;
adjusting the first chamber pacing rate to the first rate;
delivering first pacing pulses to a first heart chamber at the selected first rate;
establishing a second chamber pacing rate that is equivalent to the first rate in response to detecting the AV block; and
delivering second pacing pulses to a second heart chamber at the second chamber pacing rate.
1 Assignment
0 Petitions
Accused Products
Abstract
An implantable medical device system including an atrial pacemaker and a ventricular pacemaker is configured to deliver dual chamber pacing in the presence of atrioventricular block. In response to detecting the AV block, the atrial pacemaker may establish a limited number of selectable pacing rates. The atrial pacemaker selects a rate from the limited number of selectable pacing rates and adjusts the atrial pacing rate to the selected rate. The ventricular pacemaker is configured to establish a ventricular pacing rate that is equivalent to the selected rate in response to detecting the AV block. Other examples are described herein.
82 Citations
23 Claims
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1. A method for controlling cardiac pacing by an implantable medical device system comprising a first chamber pacemaker and a second chamber pacemaker, the method comprising:
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selecting by a control module of the first chamber pacemaker a first chamber pacing rate from a first plurality of selectable pacing rates; automatically detecting atrioventricular (AV) block; in response to detecting the AV block, establishing a second plurality of selectable pacing rates comprising fewer selectable pacing rates than the first plurality of selectable pacing rates; selecting a first rate from the second plurality of selectable pacing rates; adjusting the first chamber pacing rate to the first rate; delivering first pacing pulses to a first heart chamber at the selected first rate; establishing a second chamber pacing rate that is equivalent to the first rate in response to detecting the AV block; and delivering second pacing pulses to a second heart chamber at the second chamber pacing rate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An implantable medical device system, comprising:
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a first chamber pacemaker comprising a first pacing pulse generator, a first sensing module and a first control module coupled to the first pacing pulse generator and the first sensing module; and a second chamber pacemaker comprising a second pacing pulse generator, a second sensing module, and a second control module coupled to the second pulse generator and the second sensing module, the first chamber pacemaker configured to; select a first chamber pacing rate from a first plurality of selectable pacing rates; detect atrioventricular (AV) block; in response to detecting the AV block, establish a second plurality of selectable pacing rates comprising fewer selectable rates than the first plurality of selectable pacing rates; select a first rate from the second plurality of selectable pacing rates; adjust the first chamber pacing rate to the first rate; and control the first chamber pulse generator to deliver first pacing pulses to a first heart chamber at the selected first rate; the second control module configured to; detect the AV block; establish a second chamber pacing rate that is equivalent to the first rate in response to detecting the AV block; and control the second pacing pulse generator to deliver second pacing pulses to a second heart chamber at the second chamber pacing rate. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A non-transitory, computer-readable medium comprising a set of instructions which, when executed by an implantable medical device system comprising a first chamber pacemaker and a second chamber pacemaker, cause the system to:
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select a first chamber pacing rate from a first plurality of selectable pacing rates; detect atrioventricular (AV) block; in response to detecting the AV block, establish a second plurality of selectable pacing rates comprising fewer selectable pacing rates than the first plurality of selectable pacing rates; select a rate from the second plurality of selectable pacing rates; adjust the first chamber pacing rate to the selected rate; deliver first pacing pulses to a first heart chamber at the selected rate; establish a second chamber pacing rate that is equivalent to the selected rate in response to detecting the AV block; and deliver second pacing pulses to a second heart chamber at the second chamber pacing rate.
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Specification