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Local lead to improve energy efficiency in implantable wireless acoustic stimulators

  • US 9,731,139 B2
  • Filed: 12/22/2015
  • Issued: 08/15/2017
  • Est. Priority Date: 07/16/2008
  • Status: Active Grant
First Claim
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1. A method of using acoustic energy to stimulate cardiac tissue, comprising:

  • subcutaneously implanting a transmitter in an intercostal space, wherein the intercostal space permits an ultrasonic imaging view of the heart;

    implanting a receiver at a first cardiac tissue location aligned with the intercostal space;

    wherein the receiver receives acoustic energy transmitted by the transmitter and produces a biologically stimulating electrical output in response to the received acoustic energy; and

    implanting a stimulating electrode connected to the receiver by a local lead at a second cardiac tissue location, wherein the stimulating electrode receives the biologically stimulating electrical output from the receiver and delivers said output to cardiac tissue, and wherein the first cardiac tissue location is selected to minimize the distance and angle of the acoustic energy transmission from the transmitter to the receiver and the second cardiac tissue location is selected to deliver the stimulating electrical output remote from the housing of the receiver.

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