US7169153B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical instrument for inserting intervertebral prosthesis
Assignee: DePuy Spine LLC
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Filing: 2003-02-05
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Granted: 2007-01-30
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Expires: 2023-02-05
Abstract
Abstract Surgical instrument for inserting an intervertebral prosthesis, having first and second prosthesis holders ( 52 A, 52 B) for a pair of prosthesis plates, which holders are connected to one another by a parallel guide ( 57 ) and can be spread by a lever arrangement ( 131 ). The first of the prosthesis holders is arranged on an elongate instrument body in order to give the surgeon an exact picture of the orientation of the prosthesis and to allow force to be exerted in exactly this direction. The actuating lever ( 131 ) is articulated with its front end on the second prosthesis holder ( 52 B) so as to pivot about a spindle ( 130 ) extending transversely with respect to the longitudinal direction of the instrument body ( 51 ) and to the direction of spreading. Behind this spindle ( 130 ), it has a limit stop ( 133 ) which acts directly or indirectly on the instrument body ( 51 ) or the first prosthesis holder ( 52 A). The lever arrangement can also be the other way around.
Inventors
- 👤 Arnold Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:14
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/46; A61F2/4603; A61F2/4611; A61F2/44; A61F2/442; A61F2/4425; A61F2002/4615; A61F2002/4622; A61F2002/4625; A61F2002/4628; A61F2002/4687
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
123 words
Surgical instrument for inserting intervertebral prostheses, having a first prosthesis holder and a second prosthesis holder for a pair of prosthesis plates, which holders are connected to one another by a parallel guide and can be spread by means of a lever arrangement, characterized in that the first prosthesis holder is arranged on an elongated instrument body and the lever arrangement comprises an actuating lever which is articulated at its front end on the first prosthesis holder so as to pivot about a spindle, said spindle extending transversely with respect to the longitudinal direction of the instrument body and to the direction of spreading, and behind this spindle it has a limit stop which acts directly or indirectly on the second prosthesis holder.
Claim 2
Dependent Claim
123 words
Surgical instrument for inserting intervertebral prostheses, having a first prosthesis holder and a second prosthesis holder for a pair of prosthesis plates, which holders are connected to one another by a parallel guide and can be spread by means of a lever arrangement, characterized in that the first prosthesis holder is arranged on an elongated instrument body and the lever arrangement comprises an actuating lever which is articulated at its front end on the first prosthesis holder so as to pivot about a spindle, said spindle extending transversely with respect to the longitudinal direction of the instrument body and to the direction of spreading, and behind this spindle it has a limit stop which acts directly or indirectly on the second prosthesis holder.
Claim 3
Dependent Claim
25 words
Instrument according to claim 1 , characterized in that the limit stop acts on an oblique link arm which is part of the parallel guide.
Claim 4
Dependent Claim
21 words
Instrument according to claim 1 , characterized in that the actuating lever can be easily attached or released during the operation.
Claim 5
Dependent Claim
35 words
Instrument according to claim 1 , characterized in that the limit stop acts, via a friction-reducing means, on a limit stop mating surface on the instrument body or on the first or second prosthesis holder.
Claim 6
Dependent Claim
33 words
Instrument according to claim 4 , characterized in that a fixture pairing is provided which comprises a slotted guide and slide block and holds the limit stop on the limit stop mating surface.
Claim 7
Dependent Claim
41 words
Instrument set with an instrument according to claim 1 , characterized in that a prosthesis core holder is provided and the instrument and the prosthesis core holder have interacting limit stops for determining the end position of the prosthesis core holder.
Claim 8
Dependent Claim
36 words
Instrument set according to claim 6 , characterized in that the prosthesis core holder has an elongated instrument body and at its front end has an angled holder opening to the side for the prosthesis core.
Claim 9
Dependent Claim
177 words
Instrument for inserting an intervertebral prosthesis, having a first prosthesis holder and a second prosthesis holder for a pair of prosthesis plates, which holders are connected to one another by a parallel guide and can be spread by means of a lever arrangement, characterized in that the first prosthesis holder is arranged on an elongate instrument body and the lever arrangement comprises an actuating lever which is articulated at its front end on the second prosthesis holder so as to pivot about a spindle extending transversely with respect to the longitudinal direction of the instrument body and to the direction of spreading, and behind this spindle it has a limit stop which acts directly or indirectly on the instrument body or the first prosthesis holder, and the limit stop acts, via a friction-reducing means, on a limit stop mating surface on the instrument body or on the first or second prosthesis holder, and a fixture pairing is provided which comprises a slotted guide and slide block and holds the limit stop on the limit stop mating surface.
Claim 10
Dependent Claim
177 words
Instrument for inserting an intervertebral prosthesis, having a first prosthesis holder and a second prosthesis holder for a pair of prosthesis plates, which holders are connected to one another by a parallel guide and can be spread by means of a lever arrangement, characterized in that the first prosthesis holder is arranged on an elongate instrument body and the lever arrangement comprises an actuating lever which is articulated at its front end on the second prosthesis holder so as to pivot about a spindle extending transversely with respect to the longitudinal direction of the instrument body and to the direction of spreading, and behind this spindle it has a limit stop which acts directly or indirectly on the instrument body or the first prosthesis holder, and the limit stop acts, via a friction-reducing means, on a limit stop mating surface on the instrument body or on the first or second prosthesis holder, and a fixture pairing is provided which comprises a slotted guide and slide block and holds the limit stop on the limit stop mating surface.
Claim 11
Dependent Claim
25 words
Instrument according to claim 8 , characterized in that the limit stop acts on an oblique link arm which is part of the parallel guide.
Claim 12
Dependent Claim
21 words
Instrument according to claim 8 , characterized in that the actuating lever can be easily attached or released during the operation.
Claim 13
Dependent Claim
35 words
Instrument according to claim 8 , characterized in that the limit stop acts, via a friction-reducing means, on a limit stop mating surface on the instrument body or on the first or second prosthesis holder.
Claim 14
Dependent Claim
154 words
Instrument for inserting an intervertebral prosthesis, having a first prosthesis holder and a second prosthesis holder for a pair of prosthesis plates, which holders are connected to one another by a parallel guide and can be spread by means of a lever arrangement, characterized in that the first prosthesis holder is arranged on an elongate instrument body and the lever arrangement comprises an actuating lever which is articulated at its front end on the second prosthesis holder so as to pivot about a spindle extending transversely with respect to the longitudinal direction of the instrument body and to the direction of spreading, and behind this spindle it has a limit stop which acts directly or indirectly on the instrument body or the first prosthesis holder, and a prosthesis core holder is provided and the instrument and the prosthesis core holder have interacting limit stops for determining the end position of the prosthesis core holder.
Claim 15
Dependent Claim
154 words
Instrument for inserting an intervertebral prosthesis, having a first prosthesis holder and a second prosthesis holder for a pair of prosthesis plates, which holders are connected to one another by a parallel guide and can be spread by means of a lever arrangement, characterized in that the first prosthesis holder is arranged on an elongate instrument body and the lever arrangement comprises an actuating lever which is articulated at its front end on the second prosthesis holder so as to pivot about a spindle extending transversely with respect to the longitudinal direction of the instrument body and to the direction of spreading, and behind this spindle it has a limit stop which acts directly or indirectly on the instrument body or the first prosthesis holder, and a prosthesis core holder is provided and the instrument and the prosthesis core holder have interacting limit stops for determining the end position of the prosthesis core holder.
Claim 16
Dependent Claim
36 words
Instrument set according to claim 12 , characterized in that the prosthesis core holder has an elongated instrument body and at its front end has an angled holder opening to the side for the prosthesis core.
Claim 17
Dependent Claim
35 words
Instrument according to claim 13 , characterized in that the limit stop acts, via a friction-reducing means, on a limit stop mating surface on the instrument body or on the first or second prosthesis holder.
Claim 18
Dependent Claim
25 words
Instrument according to claim 13 , characterized in that the limit stop acts on an oblique link arm which is part of the parallel guide.
Claim 19
Dependent Claim
21 words
Instrument according to claim 13 , characterized in that the actuating lever can be easily attached or released during the operation.
Claim 20
Dependent Claim
25 words
Instrument according to claim 12 , characterized in that the limit stop acts on an oblique link arm which is part of the parallel guide.
Claim 21
Dependent Claim
21 words
Instrument according to claim 12 , characterized in that the actuating lever can be easily attached or released during the operation.
Claim 22
Dependent Claim
35 words
Instrument according to claim 12 , characterized in that the limit stop acts, via a friction-reducing means, on a limit stop mating surface on the instrument body or on the first or second prosthesis holder.
References Cited (Backward Citations)
EP0269935A2
Cited
EP0333990A2
Cited
DE19836498A1
Cited
DE29916078U1
Cited
DE20004812U1
Cited
US20020116009A1
Cited
US6716218B2
Cited
US6551316B1
Cited
US20040093021A1
Cited
DE20116410U1
Cited
US20040106927A1
Cited
US20040002758A1
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2010-01-29 | 2010-07-31 | 2011-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2014-01-29 | 2014-07-31 | 2015-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2018-01-29 | 2018-07-31 | 2019-01-30 | $7700.00 | Window Closed / Lapsed |