Pace counter isolation for cardiac resynchronization pacing
First Claim
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1. A method for operating a cardiac rhythm management device, comprising:
- delivering pacing pulses to a heart chamber upon occurrence of one of at least a first event and a second event;
counting the number of pacing pulses delivered by reason of the first event occurring;
counting the number of pacing pulses delivered by reason of the second event occurring; and
computing the percentage of cardiac cycles in which a pacing pulse was delivered by reason of the first event occurring and the percentage of cardiac cycles in which a pacing pulse was delivered by reason of the second event occurring.
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Abstract
A system and method recording sensing and pacing events in a cardiac rhythm management device. The method may be particularly useful in assessment of pacing parameters for ventricular resynchronization therapy.
41 Citations
44 Claims
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1. A method for operating a cardiac rhythm management device, comprising:
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delivering pacing pulses to a heart chamber upon occurrence of one of at least a first event and a second event; counting the number of pacing pulses delivered by reason of the first event occurring; counting the number of pacing pulses delivered by reason of the second event occurring; and computing the percentage of cardiac cycles in which a pacing pulse was delivered by reason of the first event occurring and the percentage of cardiac cycles in which a pacing pulse was delivered by reason of the second event occurring. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A cardiac rhythm management device, comprising:
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a pacing channel for delivering pacing pulses to a heart chamber; a controller for controlling the delivery of paces to the heart chamber in accordance with a programmed pacing mode, wherein a pace is delivered upon occurrence of one of at least a first event and a second event; wherein the controller is programmed to count the number of pacing pulses delivered by reason of the first event occurring; wherein the controller is programmed to count the number of pacing pulses delivered by reason of the second event occurring; and
,wherein the controller is programmed to compute the percentage of cardiac cycles in which a pacing pulse was delivered by reason of the first event occurring and the percentage of cardiac cycles in which a pacing pulse was delivered by reason of the second event occurring. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A cardiac rhythm management device, comprising:
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a channel interface associated with a heart chamber; a controller circuit configured to control generation of a pacing pulse to be provided via the channel interface to the heart chamber in accordance with a programmed pacing mode; wherein the controller circuit is configured to provide the pacing pulse in response to an event of either a first event type or a different second event type; wherein the controller circuit is configured to count the number of respective pacing pulses provided by reason of respective occurrences of the first event type; wherein the controller circuit is configured to count the number of pacing pulses provided by reason of respective occurrences of the second event type; and wherein the controller circuit is configured to compute a percentage of cardiac cycles in which a pacing pulse was provided by reason of the first event type occurring and the percentage of cardiac cycles in which a pacing pulse was provided by reason of the second event type occurring. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A memory circuit within a cardiac rhythm management device, the memory having instructions for operating the cardiac rhythm management device, the instructions when performed by a processor within the cardiac rhythm management device causing the cardiac rhythm management device to:
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receive an indication from a channel interface of an occurrence of either a first event type or a different second event type; control providing a pacing pulse to be delivered to a heart chamber via the channel interface in accordance with a programmed pacing mode, wherein the pacing pulse is provided in response to an event of either the first event type or the different second event type; count the number of respective pacing pulses provided by reason of respective occurrences of the first event type; count the number of respective pacing pulses provided by reason of respective occurrences of the second event type; and compute the percentage of cardiac cycles in which a pacing pulse was provided by reason of the first event type occurring and the percentage of cardiac cycles in which a pacing pulse was provided by reason of the second event type occurring. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A cardiac rhythm management device, comprising:
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a first channel interface associated with a first heart chamber; a first sense amplifier circuit coupled to the first channel interface, the first sense amplifier configured to provide a first sense signal indicating an occurrence of either a first event type or a different second event type; a first pulse generator circuit coupled to the first channel interface, the first pulse generator configured to provide a pacing pulse in accordance with a programmed pacing mode; a second channel interface associated with a second heart chamber; a second sense amplifier circuit coupled to the second channel interface, the second sense amplifier configured to provide a second sense signal indicating an occurrence of either the first event type or the different second event type; a second pulse generator circuit coupled to the second channel interface, the second pulse generator configured to provide a pacing pulse in accordance with the programmed pacing mode; a controller circuit in bi-directional communication with each of the channel interfaces, wherein the controller circuit receives the first and second sense signals from the respective sense amplifiers via the channel interfaces and, in response, controls generating the pacing pulse by the appropriate pulse generator in accordance with the programmed pacing mode; wherein the controller circuit is configured to count the number of pacing pulses provided by reason of the first event type occurring; wherein the controller circuit is configured to count the number of pacing pulses provided by reason of the second event type occurring; and wherein the controller circuit is configured to compute the percentage of cardiac cycles in which a pacing pulse was provided by reason of the first event type occurring and the percentage of cardiac cycles in which a pacing pulse was provided by reason of the second event type occurring. - View Dependent Claims (44)
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Specification