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Cardiac pacemaker with position detector

  • US 6,708,063 B2
  • Filed: 12/18/2000
  • Issued: 03/16/2004
  • Est. Priority Date: 12/17/1999
  • Status: Expired due to Term
First Claim
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1. An implantable cardiac pacemaker for a user imposing a physiological demand thereon, the pacemaker capable of adapting to changes in physiological parameters, the pacemaker comprising:

  • a movement sensor that generates a movement signal in the presence of a movement of the pacemaker and no signal in the absence of pacemaker movement; and

    a control device comprising a classification device, connected to the movement sensor, for recognizing pacemaker movements by measuring a duration of the movement signal;

    wherein the classification device comprises a memory device, a short-term counter and a switch device; and

    wherein the switch device compares a state of the counter at an end of the movement signal to at least one predeterminable threshold value and outputs a position change signal.

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