×

Pacemaker system and method with improved evoked response and repolarization signal detection

  • US 6,067,472 A
  • Filed: 01/22/1998
  • Issued: 05/23/2000
  • Est. Priority Date: 03/12/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. A pacemaker system for delivering pace pulses to a patient'"'"'s heart, comprising:

  • a controllable pulse generator for delivering pace pulses comprising a stimulus pulse portion of a first polarity and a post-stim portion of a second polarity;

    control means for controlling the duration of said post-stim pace pulses;

    a lead for delivering said pace pulses, said lead having at least one electrode at about its distal end;

    sensing means for sensing signals at said electrode, and polarization level means for determining the level of polarization signals sensed at said electrode; and

    said control means having program means for programming said post-stim pace pulse duration to a value at which the level of a said polarization signal following a delivered pace pulse is within predetermined limits, wherein said program means comprises means for adjusting said post-stim portion to different values in a predetermined sequence until said polarization signals are determined to be within said limits.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×