Cardiac function monitor using information indicative of lead motion
First Claim
1. A system comprising:
- an implantable medical device (IMD) including;
a receiver circuit, configured to be electrically coupled to a conductor comprising a portion of an implantable lead, the receiver circuit configured to receive a response to an excitation signal applied to the conductor of the lead, the response modulated according to a change in an electrical characteristic of at least one conductor in the lead to provide information indicative of a movement of the implantable lead due at least in part to a motion of a heart; and
a sensing circuit configured to obtain information indicative of cardiac electrical activity; and
a processor circuit configured to construct a template representative of a contraction of the heart, the template constructed using the information indicative of the movement of the implantable lead due at least in part to the motion of the heart during the contraction, and using the information indicative of cardiac electrical activity sensed during the contraction.
2 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods to monitor cardiac function using information indicative of lead motion are described. In an example, a system including an implantable medical device can include a receiver circuit configured to be electrically coupled to conductor comprising a portion of an implantable lead and be configured to obtain information indicative of a movement of the implantable lead due at least in part to a motion of a heart. The system can include a sensing circuit configured to obtain information indicative of cardiac electrical activity. The system can include a processor circuit configured to construct a template representative of a contraction of the heart, where the template can be constructed using the information indicative of the movement of the implantable lead due at least in part to the motion of the heart during the contraction, and using the information indicative of the cardiac electrical activity sensed during the contraction.
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Citations
22 Claims
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1. A system comprising:
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an implantable medical device (IMD) including; a receiver circuit, configured to be electrically coupled to a conductor comprising a portion of an implantable lead, the receiver circuit configured to receive a response to an excitation signal applied to the conductor of the lead, the response modulated according to a change in an electrical characteristic of at least one conductor in the lead to provide information indicative of a movement of the implantable lead due at least in part to a motion of a heart; and a sensing circuit configured to obtain information indicative of cardiac electrical activity; and a processor circuit configured to construct a template representative of a contraction of the heart, the template constructed using the information indicative of the movement of the implantable lead due at least in part to the motion of the heart during the contraction, and using the information indicative of cardiac electrical activity sensed during the contraction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A processor-readable medium comprising instructions that, when executed by the processor, cause the processor to:
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receive, using a receiver circuit, a response to an excitation signal applied to a conductor in an implantable lead, the response modulated according to a change in an electrical characteristic of the conductor in the lead to provide information indicative of the movement of the implantable lead, wherein the conductor is electrically coupled to the receiver circuit, the receiver circuit included as a portion of an implantable medical device (IMD), and the movement due at least in part to a motion of a heart; obtain information indicative of cardiac electrical activity using a sensing circuit; and construct a template representative of a contraction of the heart, the template constructed using information indicative of the movement of the implantable lead due at least in part to the motion of the heart during the contraction, and using the information indicative of cardiac electrical activity sensed during the contraction. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A system, comprising:
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means for receiving a response to an excitation signal applied to a conductor in an implantable lead, the response modulated according to a change in an electrical characteristic of the conductor in the lead to provide information indicative of movement of the implantable lead, the conductor electrically coupled to a receiver circuit, the receiver circuit included as a portion of an implantable medical device (IMD), and the movement due at least in part to a motion of a heart; means for obtaining information indicative of cardiac electrical activity using a sensing circuit; and means for constructing a template representative of a contraction of the heart, the template constructed using the information indicative of the movement of the implantable lead due at least in part to the motion of the heart during the contraction, and using the information indicative of cardiac electrical activity sensed during the contraction.
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Specification