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Attachment apparatus for an implantable medical device employing ultrasonic energy

  • US 5,919,215 A
  • Filed: 08/27/1998
  • Issued: 07/06/1999
  • Est. Priority Date: 08/01/1997
  • Status: Expired due to Term
First Claim
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1. An implantable medical device comprising a hermetically sealed enclosure, a header module formed of a thermoplastic material, and a mechanism for attaching the hermetically sealed enclosure to the header module, the mechanism comprising:

  • at least one upstanding attachment tab having a lower portion connected to a predetermined location disposed on a upper mating surface of the enclosure, a free upper end of the at least one upstanding attachment tab extending upwardly in a predetermined location away from the upper mating surface;

    at least one tab channel disposed in the header module and extending upwardly in respect of a lower mating surface of the header module, the at least one channel being sized to receive the at least one upstanding attachment tab therein when at least portions of the upper mating surface and the lower mating surfaces engage and are aligned in respect of one another, at least portions of both mating surfaces being configured and shaped to matingly fit against one another;

    at least one tab hook formed in the at least one upstanding attachment tab, the at least one upstanding attachment tab being disposed in the at least one tab channel; and

    header module solidified thermoplastic material surrounding the at least one tab hook and connecting the at least one tab hook to the header module, wherein the solidified thermoplastic material originates from melted portions of the header module corresponding to the at least one tab hook.

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