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Sensing margin detectors for implantable electromedical devices

  • US 4,827,934 A
  • Filed: 10/27/1987
  • Issued: 05/09/1989
  • Est. Priority Date: 10/27/1987
  • Status: Expired due to Term
First Claim
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1. An implantable electromedical device for developing predetermined control signals in response to sensed physiological reactions comprising:

  • signal processing means coupled to receive signals corresponding to electrophysiological activity and to develop processed signals in response thereto, the signal processing means including a sensing detector for developing output signals corresponding to said processed signals;

    means coupled to the sensing detector for establishing a threshold of response for said sensing detector, wherein the time duration of said output signal from said sensing detector corresponds to the time interval during which a processed signal exceeds said threshold level;

    sensing margin means for determining a sensing margin as the level of said processed signals relative to said threshold; and

    means for indicating the degree of difference between the processed signals and said threshold.

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