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Insertion tool for a cochlear implant electrode array

  • US 20030093139A1
  • Filed: 11/18/2002
  • Published: 05/15/2003
  • Est. Priority Date: 10/17/2000
  • Status: Active Grant
First Claim
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1. An implantable tissue-stimulating device comprising:

  • a stimulating means;

    an elongate member coupled to said stimulating means made of a resiliently flexible first material and having a length and a plurality of electrodes mounted thereon adapted to apply a preselected tissue stimulation, the elongate member having a pre-formed orientation, an implantable orientation different to said pre-formed orientation that allows said member to be inserted into an implantee'"'"'s body, and an at least one intermediate orientation between said implantable and said pre-formed orientation; and

    a shape element removably positioned within the elongate member and extending along at least a portion of the length thereof, said element having;

    a first shape selected for biasing said elongate member into said implantable orientation when the shape element is at a first temperature; and

    at least a second shape that allows the elongate member to adopt said at least one intermediate orientation when the shape element is exposed to a pre-determined temperature different than said first temperature.

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