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Patent US4462402A successfully refreshed from Google Patents.
US4462402A
Expired / Lapsed
US
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Method and anchor for anchoring
Assignee: Cochlear Corp
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Filing: 1982-11-15
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Granted: 1984-07-31
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Expires: 2002-11-15
Abstract
Abstract A method for implanting electrodes in or around a human cochlea that involves inserting one end of an anchor in the temperal bone, and functionally engaging a lead to the electrode with the anchor. Numerous anchor embodiments are described together with tools for inserting some of the anchors.
Inventors
- 👤 Paul A. Burgio
- 👤 Derrick A. Jones
- 👤 Allen J. Abel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:11
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/0526; A61N1/0541; A61F; A61F11/00; A61F11/20; H; H04; H04R; H04R25/00; H04R25/60; H04R25/604; H04R25/606; Y; Y10; Y10S; Y10S128/00; Y10S128/26
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
201 words
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.
Claim 2
Dependent Claim
201 words
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.
Claim 3
Dependent Claim
132 words
An anchor adapted to be inserted in the temporal bone of a human skull and to be engaged with one or more leads extending to an electrode to help position the electrode at a desired location relative to the cochlea, said anchor comprising a metal wire having a first end portion of a size capable of insertion in a socket in the temporal bone and comprising means adapted to firmly engage the walls defining the socket; and an opposite generally U-shaped second end portion having adjacent surfaces; and a layer of resiliently elastic polymeric material over the adjacent surfaces of said wire along said U-shaped end portion and having adjacent surfaces, the adjacent surfaces of said layer of polymeric material being spaced to frictionally receive a portion of a said lead therebetween.
Claim 4
Dependent Claim
132 words
An anchor adapted to be inserted in the temporal bone of a human skull and to be engaged with one or more leads extending to an electrode to help position the electrode at a desired location relative to the cochlea, said anchor comprising a metal wire having a first end portion of a size capable of insertion in a socket in the temporal bone and comprising means adapted to firmly engage the walls defining the socket; and an opposite generally U-shaped second end portion having adjacent surfaces; and a layer of resiliently elastic polymeric material over the adjacent surfaces of said wire along said U-shaped end portion and having adjacent surfaces, the adjacent surfaces of said layer of polymeric material being spaced to frictionally receive a portion of a said lead therebetween.
Claim 5
Dependent Claim
34 words
An anchor according to claim 2 wherein said means adapted to firmly engage the walls of the socket comprise a barb projecting along one side and toward the second end portion of the anchor.
Claim 6
Dependent Claim
27 words
An anchor according to claim 2 wherein said anchor includes a polymeric tube over said generally U-shaped second end portion to provide said layer of polymeric material.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-07-31 | 1988-01-30 | 1988-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-31 | 1992-01-30 | 1992-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-31 | 1996-01-30 | 1996-07-31 | $7700.00 | Window Closed / Lapsed |