System and method for cardiac pacing
First Claim
1. An implantable medical device system for delivering cardiac pacing, comprising:
- a first device comprising a power transmitter, sensing circuitry, a control module, a first housing enclosing the power transmitter, the sensing circuitry and the control module, a plurality of sensing electrodes, and an extra-cardiovascular sensing extension extending from the first housing and carrying at least one of the plurality of sensing electrodes, the control module configured to;
identify a first cardiac event by identifying a P-wave from a cardiac electrical signal received by the sensing circuitry via the plurality of sensing electrodes,identify a second cardiac event by identifying an R-wave;
determine an interval between the P-wave and the R-wave; and
set a first pacing interval to be less than the interval between the P-wave and the R-wave in response to identifying the first cardiac event, andcontrol the power transmitter to transmit power upon expiration of the first pacing interval; and
a second device comprising a pacing electrode pair, a second housing, and a power receiver enclosed by the second housing, the power receiver coupled to the first pacing electrode pair, the first pacing electrode pair carried by the second housing;
wherein the power receiver is configured to receive the transmitted power and deliver at least a portion of the received power to a patient'"'"'s heart via the first pacing electrode pair.
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Accused Products
Abstract
An implantable medical device system is configured to deliver cardiac pacing by receiving a cardiac electrical signal by sensing circuitry of a first device via a plurality of sensing electrodes, identifying by a control module of the first device a first cardiac event from the cardiac electrical signal, setting a first pacing interval in response to identifying the first cardiac event, controlling a power transmitter of the first device to transmit power upon expiration of the first pacing interval, receiving the transmitted power by a power receiver of a second device; and delivering at least a portion of the received power to a patient'"'"'s heart via a first pacing electrode pair of the second device coupled to the power receiver.
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Citations
40 Claims
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1. An implantable medical device system for delivering cardiac pacing, comprising:
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a first device comprising a power transmitter, sensing circuitry, a control module, a first housing enclosing the power transmitter, the sensing circuitry and the control module, a plurality of sensing electrodes, and an extra-cardiovascular sensing extension extending from the first housing and carrying at least one of the plurality of sensing electrodes, the control module configured to; identify a first cardiac event by identifying a P-wave from a cardiac electrical signal received by the sensing circuitry via the plurality of sensing electrodes, identify a second cardiac event by identifying an R-wave; determine an interval between the P-wave and the R-wave; and set a first pacing interval to be less than the interval between the P-wave and the R-wave in response to identifying the first cardiac event, and control the power transmitter to transmit power upon expiration of the first pacing interval; and a second device comprising a pacing electrode pair, a second housing, and a power receiver enclosed by the second housing, the power receiver coupled to the first pacing electrode pair, the first pacing electrode pair carried by the second housing; wherein the power receiver is configured to receive the transmitted power and deliver at least a portion of the received power to a patient'"'"'s heart via the first pacing electrode pair. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for delivering cardiac pacing by an implantable medical device system, comprising:
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receiving a cardiac electrical signal via a plurality of sensing electrodes coupled to sensing circuitry of a first device, at least one of the plurality of sensing electrodes carried by an extra-cardiovascular sensing extension extending from the first device; identifying by a control module of the first device a first cardiac event by identifying a P-wave from the cardiac electrical signal; identifying a second cardiac event by identifying an R-wave; determining an interval between the P-wave and the R-wave; setting a first pacing interval to be less than the interval between the P-wave and the R-wave in response to identifying the first cardiac event; controlling a power transmitter of the first device to transmit power upon expiration of the first pacing interval; receiving the transmitted power by a power receiver of a second device; and delivering at least a portion of the received power to a patient'"'"'s heart via a first pacing electrode pair of the second device coupled to the power receiver. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A non-transitory, computer-readable medium comprising a set of instructions which when executed by a control module of an implantable medical device system comprising a first device and a second device cause the system to:
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receive a cardiac electrical signal via a plurality of sensing electrodes coupled to sensing circuitry of the first device, at least one of the plurality of sensing electrodes carried by an extra-cardiovascular sensing extension extending from the first device; identify by a control module of the first device a first cardiac event by identifying a P-wave from the cardiac electrical signal; identifying a second cardiac event by identifying an R-wave; determining an interval between the P-wave and the R-wave; setting a first pacing interval to be less than the interval between the P-wave and the R-wave in response to identifying the first cardiac event; control a power transmitter of the first device to transmit power upon expiration of the first pacing interval; receive the transmitted power by a power receiver of the second device; and deliver at least a portion of the received power to a patient'"'"'s heart via a pacing electrode pair of the second device coupled to the power receiver.
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34. An implantable medical device comprising:
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a power transmitter, sensing circuitry, a control module, a housing enclosing the power transmitter, the sensing circuitry and the control module, a plurality of sensing electrodes, and an extra-cardiovascular sensing extension extending from the housing and carrying at least one of the plurality of sensing electrodes, the control module configured to; identify a first cardiac event by identifying a P-wave from a cardiac electrical signal received by the sensing circuitry via the plurality of sensing electrodes, identify a second cardiac event by identifying an R-wave; determine an interval between the P-wave and the R-wave; and set a first pacing interval to be less than the interval between the P-wave and the R-wave in response to identifying the first cardiac event, and control the power transmitter to transmit power for pacing to another device upon expiration of the first pacing interval. - View Dependent Claims (35, 36, 37, 38, 39, 40)
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Specification