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Dual chamber pacemaker with single pass lead and with bipolar and unipolar signal processing capability

  • US 5,999,853 A
  • Filed: 03/02/1998
  • Issued: 12/07/1999
  • Est. Priority Date: 03/02/1998
  • Status: Expired due to Term
First Claim
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1. A dual chamber pacing system for cardiac pacing of a patient, comprising:

  • pulse means for generating pacing pulses;

    a single pass lead for delivering pacing pulses to the patient'"'"'s heart and for sensing cardiac signals from the patient'"'"'s atrium and ventricle, said lead comprising at least one electrode positioned thereon for placement in said atrium and one electrode positioned thereon for placement in said ventricle;

    an indifferent electrode;

    sensing means for sensing signals between respective pairs of said atrial, ventricular and indifferent electrodes;

    enabling means for cyclically enabling one or more of said signals for processing, said enabling means comprises programmable means for cyclically enabling at least two signals sensed at two respective pairs of said electrode; and

    processing means for processing said enabled signals for interpreting the type of event represented by said each said sensed signal.

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