Cardiac contraction detection using information indicative of lead motion
First Claim
1. An apparatus including an implantable medical device, the implantable medical device (IMD) comprising:
- 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 of the conductor of the implantable lead to an excitation signal applied to excite the conductor of the implantable lead, the response based on the excitation signal and modulated according to a change in an electrical characteristic of the conductor itself, to obtain information about the excited conductor itself that is indicative of a movement of the implantable lead due at least in part to a motion of a heart; and
a processor circuit configured to determine one or more of (1) whether a cardiac mechanical contraction occurred during a specified interval included in the obtained information indicative of the movement of the implantable lead, or (2) information about the cardiac mechanical contraction using the obtained information indicative of the movement of the implantable lead.
2 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods for cardiac contraction detection using information indicative of lead motion are described. In an example, 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 device can include a processor circuit configured to determine whether a cardiac mechanical contraction occurred during a specified interval included in the obtained information indicative of the movement of the implantable lead. The processor circuit can be configured to determine information about the cardiac mechanical contraction using the obtained information indicative of the movement of the implantable lead.
65 Citations
23 Claims
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1. An apparatus including an implantable medical device, the implantable medical device (IMD) comprising:
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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 of the conductor of the implantable lead to an excitation signal applied to excite the conductor of the implantable lead, the response based on the excitation signal and modulated according to a change in an electrical characteristic of the conductor itself, to obtain information about the excited conductor itself that is indicative of a movement of the implantable lead due at least in part to a motion of a heart; and a processor circuit configured to determine one or more of (1) whether a cardiac mechanical contraction occurred during a specified interval included in the obtained information indicative of the movement of the implantable lead, or (2) information about the cardiac mechanical contraction using the obtained information indicative of the movement of the implantable lead. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An implantable medical device (IMD) including a non-transitory processor-readable medium comprising instructions that, when executed by the processor, cause the IMD to:
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obtain information indicative of movement of a conductor of an implantable lead, using a response of the conductor to an excitation signal applied to excite the conductor of the implantable lead, the response based on the excitation signal and modulated according to a change in an electrical characteristic of the conductor itself, the conductor electrically coupled to a receiver circuit, the receiver circuit included as a portion of the IMD, and the movement due at least in part to a motion of a heart; and determine one or more of (1) whether a cardiac mechanical contraction occurred during a specified interval included in the obtained information indicative of the movement of the implantable lead, or (2) information about the cardiac mechanical contraction using the obtained information indicative of the movement of the implantable lead. - View Dependent Claims (17, 18, 19, 20, 21)
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22. An apparatus including an implantable medical device, the implantable medical device (IMD) comprising:
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means for obtaining information indicative of movement of a conductor of an implantable lead, using a response of the conductor to an excitation signal applied to excite the conductor of the implantable lead, the response based on the excitation signal and modulated according to a change in an electrical characteristic of the conductor itself, the conductor electrically coupled to a receiver circuit, the receiver circuit included as a portion of the IMD, and the movement due at least in part to a motion of a heart; and means for determining one or more of (1) whether a cardiac mechanical contraction occurred during a specified interval included in the obtained information indicative of the movement of the implantable lead, or (2) information about the cardiac mechanical contraction using the obtained information indicative of the movement of the implantable lead. - View Dependent Claims (23)
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Specification