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Device and Method for Automatic Threshold Setting

  • US 20080161657A1
  • Filed: 12/28/2006
  • Published: 07/03/2008
  • Est. Priority Date: 12/28/2006
  • Status: Active Grant
First Claim
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1. An implantable medical device, comprising:

  • a first sensor for sensing a first signal in a patient correlated to a first physiological condition;

    a second sensor for sensing a second signal in the patient corresponding to a second physiological condition;

    a third sensor for sensing a third signal in the patient corresponding to a third physiological condition responsive to the second physiological condition; and

    control circuitry for receiving the first, second and third signals and being configured to determine a relationship between the second signal and the third signal, detect a change in the relationship between the second signal and the third signal, determine a threshold in response to detecting the change in the relationship between the second signal and the third signal, and detect an event in response to the first signal crossing the determined threshold.

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