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Method and anchor for anchoring

  • US 4,462,402 A
  • Filed: 11/15/1982
  • Issued: 07/31/1984
  • Est. Priority Date: 11/15/1982
  • Status: Expired due to Term
First Claim
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1. In the method of implanting one or more electrodes in or adjacent to a human cochlea so that the electrode can afford electrical stimulation of nerve fibers to produce the sensation of sound, which method comprises the step of positioning a lead terminating at the electrode through an opening surgically made in a temporal bone with the electrode at a predetermined position relative to the cochlea, the improvement wherein said method further includes the steps of:

  • (a) providing an anchor having a first end portion and a second end portion comprising means for engaging a portion of the lead to restrict longitudinal, transverse and rotational movement thereof relative to the anchor, the first end portion of the anchor including a barb projecting along one side and toward the second portion of the anchor;

    (b) forming a socket from the opening into the temporal bone, which socket is adapted to receive the first end portion of the anchor;

    (c) inserting the first end portion of the anchor into the socket with the anchor rotated from its desired orientation;

    (d) rotating the anchor to its desired orientation; and

    (e) engaging a portion of the lead with the means for engaging of the anchor.

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