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Feedthrough assembly with glass layer and electrical stimulation systems containing the assembly

  • US 9,119,970 B2
  • Filed: 08/12/2014
  • Issued: 09/01/2015
  • Est. Priority Date: 08/19/2013
  • Status: Active Grant
First Claim
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1. A control module for an electrical stimulation system, comprising:

  • a casing defining a sealed inner compartment;

    an electronic subassembly disposed in the inner compartment of the casing;

    a header portion coupled to the casing and comprising a connector configured and arranged to receive a proximal end of at least one lead or lead extension, the connector comprising a plurality of conductive contacts configured and arranged to electrically couple to terminal contacts on the at least one lead or lead extension;

    a feedthrough assembly coupling the casing to the header portion and, in combination with the casing, sealing the inner compartment of the casing, the feedthrough assembly comprisinga non-conductive ceramic block coupled to the casing,a plurality of conductive feedthrough pins passing through the ceramic block, the feedthrough pins electrically coupling the conductive contacts of the connector to the electronic subassembly disposed in the inner compartment of the casing,a metal braze coupling the feedthrough pins to the ceramic block, anda glass layer disposed on at least a portion of the ceramic block and in contact with at least one of the feedthrough pins.

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