×

Automatic capture verification using electrocardiograms sensed from multiple implanted electrodes

  • US 8,116,871 B2
  • Filed: 03/23/2009
  • Issued: 02/14/2012
  • Est. Priority Date: 05/09/2005
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method of classifying a cardiac response to a pacing pulse, comprising:

  • delivering, from within a patient, a cardiac pacing pulse;

    sensing one or more composite cardiac signals following delivery of the cardiac pacing pulse using at least three spatially distributed implantable electrodes;

    performing source separation using the sensed one or more composite cardiac signals, the source separation algorithmically separating one or more components of the sensed composite cardiac signals according to correlation between components of cardiac origin;

    producing one or more cardiac signal vectors representative of all or a portion of one or more cardiac activation sequences based on the separated one or more components of the sensed composite cardiac signals;

    comparing an orientation of the one or more cardiac signal vectors with predetermined vector orientation criteria comprising at least a capture vector orientation criterion and a fusion vector orientation criterion; and

    classifying the cardiac response to the pacing pulse as one of capture and fusion based on the comparison.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×