Patent US4462401A successfully refreshed from Google Patents.
US4462401A
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Method and anchor for anchoring electrode leads used in cochlear implantation
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
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:19
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/0526; A61N1/0541; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/84; A61B17/86; A61B17/8605; 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: 9
Claim 1
Independent Claim
163 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; (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; and (d) engaging a portion of the lead with the means for engaging of the anchor.
Claim 2
Dependent Claim
163 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; (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; and (d) engaging a portion of the lead with the means for engaging of the anchor.
Claim 3
Dependent Claim
55 words
A method according to claim 1 wherein the means for engaging of the anchor frictionally engages the lead, said inserting and engaging steps are performed prior to completion of said positioning step, and said positioning step comprises the step of pulling the lead through the anchor against the frictional engagement of the means for engaging.
Claim 4
Dependent Claim
121 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 first end portion comprising means for engaging the temporal bone, and an opposite generally U-shaped second end portion having adjacent surfaces and a distal tip as a means for projecting from a temporal bone engaged by said means for engaging so that the combined space between said means for engaging the temporal bone and said distal tip and between said adjacent surfaces is generally L-shaped and is adapted to receive a portion of a said lead therein.
Claim 5
Dependent Claim
121 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 first end portion comprising means for engaging the temporal bone, and an opposite generally U-shaped second end portion having adjacent surfaces and a distal tip as a means for projecting from a temporal bone engaged by said means for engaging so that the combined space between said means for engaging the temporal bone and said distal tip and between said adjacent surfaces is generally L-shaped and is adapted to receive a portion of a said lead therein.
Claim 6
Dependent Claim
30 words
An anchor according to claim 3 wherein said anchor comprises a metal wire and said first end portion is adapted to be inserted in a socket in the temporal bone.
Claim 7
Dependent Claim
134 words
An anchor adapted to be inserted in the temporal bone of a human skull and to be engaged with a lead extending between an electronic device and 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 comprising means for engaging the temporal bone, and a second end portion comprising means for engaging spaced portions of a said lead including first and second spaced generally U-shaped parts positioned with the major planes of said U-shaped parts being generally parallel, and a connecting part connecting ends of said U-shaped parts and extending generally at a right angle to said major planes, said first end portion projecting from the end of one of said U-shaped parts opposite said connecting part.
Claim 8
Dependent Claim
134 words
An anchor adapted to be inserted in the temporal bone of a human skull and to be engaged with a lead extending between an electronic device and 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 comprising means for engaging the temporal bone, and a second end portion comprising means for engaging spaced portions of a said lead including first and second spaced generally U-shaped parts positioned with the major planes of said U-shaped parts being generally parallel, and a connecting part connecting ends of said U-shaped parts and extending generally at a right angle to said major planes, said first end portion projecting from the end of one of said U-shaped parts opposite said connecting part.
Claim 9
Dependent Claim
22 words
An anchor according to claim 5 wherein said second end portion has two generally U-shaped parts in each of said major planes.
References Cited (Backward Citations)
US3449768A
Cited
US3752939A
Cited
DE2353055A1
Cited
EP0002068A2
Cited
US4276882A
Cited
GB2061733A
Cited
EP0076069A1
Cited
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 |