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System and method for multisite steering of cardiac stimuli

  • US 5,800,465 A
  • Filed: 10/30/1996
  • Issued: 09/01/1998
  • Est. Priority Date: 06/18/1996
  • Status: Expired due to Term
First Claim
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1. A pacing system for pacing in at least a patient'"'"'s left atrium, comprising:

  • a multiple electrode lead for pacing in the patient'"'"'s left atrium, said lead having a distal end and at least two anode electrodes and one cathode electrode positioned near said distal end, said electrodes being spaced from each other with a predetermined geometry, said lead having a proximal end for connecting to a pulse generator, and respective conductors connecting the respective electrodes to said proximal end,pulse generator means for generating at least two pulse outputs and delivering a first of said outputs between a first of said anode electrodes and said cathode electrode, and for delivering a second of said outputs between the second of said anode electrodes and said cathode electrode, said pulse outputs having magnitude, polarity and phase parameters,control means for controlling each of said pulse outputs with respect to at least one of said pulse parameters, andsteering means for selecting said at least one pulse parameter for each pulse output so as to generate pulses for steering the delivery of composite steering pulses to an effective site when said lead distal end is positioned in the patient'"'"'s left atrium.

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