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Phrenic nerve stimulation detection with posture sensing

  • US 9,211,415 B2
  • Filed: 02/26/2014
  • Issued: 12/15/2015
  • Est. Priority Date: 03/13/2013
  • Status: Active Grant
First Claim
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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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