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Using the case of an implantable medical device to broaden communication bandwidth

  • US 9,061,159 B2
  • Filed: 05/01/2013
  • Issued: 06/23/2015
  • Est. Priority Date: 11/11/2009
  • Status: Active Grant
First Claim
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1. An implantable medical device configured to transmit data to, receive data from, or transmit and receive data to and from, an external device with a first bandwidth, comprising:

  • a planar conductive case;

    a resonant circuit within the conductive case comprising an antenna with an inductance and a resistance, wherein the antenna is located in a plane parallel to a plane of the conductive case, wherein the inductance and resistance of the antenna prescribe a second bandwidth for the resonant circuit;

    wherein the antenna is spaced at a distance to the conductive case to cause coupling between the antenna and the conductive case, whereby the coupling broadens the second bandwidth to a third bandwidth greater than the first bandwidth.

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