Phrenic nerve stimulation detection with posture sensing
First Claim
1. A method performed using an implantable medical device (IMD) within a patient, the method comprising:
- receiving a trigger for conducting a pace-induced phrenic nerve stimulation (PS) search using the IMD within an ambulatory patient, wherein receiving the trigger includes deriving a posture trigger from the implantable posture sensor, wherein deriving the posture trigger includes searching for a recently-conducted PS search for the measured posture within a programmed time period leading up to a current time, and providing the posture trigger if the programmed time period does not include the PS search;
in response to the trigger, conducting the PS search using the IMD, wherein conducting the PS search includes;
measuring a posture of the patient using an implantable posture sensor;
searching for PS while the patient is in the measured posture and obtaining a PS search result from the PS search for the measured posture; and
recording in a memory of the IMD both the PS search result and the measured posture.
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Accused Products
Abstract
A method and a system of phrenic nerve stimulation detection in conjunction with posture sensing is disclosed. In an embodiment, the method may include receiving a trigger for conducting a pace-induced phrenic nerve stimulation (PS) search using the IMD within the patient. On receiving the trigger, the IMD may be used for conducting the PS search. A procedure of conducting the PS search may include measuring a posture of the patient using an implantable posture sensor, searching for PS while the patient is in the measured posture and obtaining a PS result from the PS search for the measured posture. The method may include recording both the PS result and the measured posture in a memory of the IMD.
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Citations
20 Claims
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1. A method performed using an implantable medical device (IMD) within a patient, the method comprising:
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receiving a trigger for conducting a pace-induced phrenic nerve stimulation (PS) search using the IMD within an ambulatory patient, wherein receiving the trigger includes deriving a posture trigger from the implantable posture sensor, wherein deriving the posture trigger includes searching for a recently-conducted PS search for the measured posture within a programmed time period leading up to a current time, and providing the posture trigger if the programmed time period does not include the PS search; in response to the trigger, conducting the PS search using the IMD, wherein conducting the PS search includes; measuring a posture of the patient using an implantable posture sensor; searching for PS while the patient is in the measured posture and obtaining a PS search result from the PS search for the measured posture; and recording in a memory of the IMD both the PS search result and the measured posture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system, comprising:
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an implantable medical device (IMD) for implantation in a patient, the IMD including; a posture sensor; a pace-induced phrenic nerve stimulation (PS) sensor; a memory; and a controller, wherein the controller is operably connected to the posture sensor to detect posture and the PS sensor to detect phrenic nerve stimulation; wherein the controller is configured to; receive a trigger for conducting a PS search, wherein the trigger includes a posture trigger, and the controller is configured to derive the posture trigger from the posture sensor; conduct the PS search in response to the trigger, wherein the PS search conducted by the controller includes; measuring a posture of the patient using the posture sensor; searching for PS using the PS sensor while the patient is in the measured posture and obtaining a PS result from the PS search for the measured posture; and recording in the memory both the PS result and the measured posture, wherein the controller is configured to determine if a PS search was successfully conducted for the measured posture within a programmed time period leading up to a current time, and to provide the posture trigger if the PS search was not conducted within the programmed time period. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification