US6946000B2
Expired / Lapsed
US
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Intervertebral implant with deformable wedge
Assignee: Zimmer Spine SAS
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Filing: 2001-12-20
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Granted: 2005-09-20
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Expires: 2021-12-20
Abstract
Abstract The invention relates to an intervertebral implant including a wedge which is inserted between two spinous processes and has two opposite grooves in which said spinous processes engage, which grooves have substantially parallel axes, and each of which grooves is defined by two flanges. The wedge has at least one central opening between said two grooves and said central opening passes completely through said wedge along an axis Ac substantially parallel to the axes Ag 1 and Ag 2 of said grooves, which renders said wedge elastically deformable.
Inventors
- 👤 Jacques Senegas
- 👤 Denis Pasquet
- 👤 Régis Le Couedic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:18
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/70; A61B17/7062; Y; Y10; Y10S; Y10S606/00; Y10S606/907; Y10S606/91
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
110 words
An intervertebral implant including a wedge which is adapted to be inserted between two spinout processes, wherein said wedge has two opposite grooves each having an axis and each being defined by two flanges, the axes of said two grooves being substantially parallel to each other and for engagement of said spinous processes therein, said wedge has at least one central opening between said two grooves, said central opening passes completely through said wedge along an axis substantially parallel to the axes of said grooves, and the volume of said central opening is from 10% to 30% of the total volume of said wedge, which renders said wedge elastically deformable.
Claim 2
Dependent Claim
110 words
An intervertebral implant including a wedge which is adapted to be inserted between two spinout processes, wherein said wedge has two opposite grooves each having an axis and each being defined by two flanges, the axes of said two grooves being substantially parallel to each other and for engagement of said spinous processes therein, said wedge has at least one central opening between said two grooves, said central opening passes completely through said wedge along an axis substantially parallel to the axes of said grooves, and the volume of said central opening is from 10% to 30% of the total volume of said wedge, which renders said wedge elastically deformable.
Claim 3
Dependent Claim
43 words
An intervertebral implant according to claim 1 , wherein said wedge has two superposed openings between said two grooves, each opening having an axis, and the axes of said openings and the axes of said two grooves are substantially parallel to each other.
Claim 4
Dependent Claim
88 words
An intervertebral implant according to claim 2 , including a single fixing band whose first end is connected to said wedge by said fixing means and whose second end is connected to said wedge by said self-locking fixing means formed in one of its lateral walls, and wherein said wedge further has, in the lateral wall opposite said lateral wall having the self-locking fixing means, guide means in which said fixing band can slide so that said band is able to surround said spinous processes and said wedge.
Claim 5
Dependent Claim
120 words
An intervertebral implant including a wedge which is adapted to be inserted between two spinous processes, wherein said wedge has two opposite grooves each having an axis and each being defined by two flanges, the axes of said two grooves being substantially parallel to each other and for engagement of said spinous processes therein, said wedge has at least one central opening between said two grooves, said central opening passes completely through said wedge along an axis substantially parallel to the axes of said grooves, and the volume of said central opening is from 10% to 30% of the total volume of said wedge, which renders said wedge elastically deformable; and wherein said wedge is made of polyether ether ketone.
Claim 6
Dependent Claim
120 words
An intervertebral implant including a wedge which is adapted to be inserted between two spinous processes, wherein said wedge has two opposite grooves each having an axis and each being defined by two flanges, the axes of said two grooves being substantially parallel to each other and for engagement of said spinous processes therein, said wedge has at least one central opening between said two grooves, said central opening passes completely through said wedge along an axis substantially parallel to the axes of said grooves, and the volume of said central opening is from 10% to 30% of the total volume of said wedge, which renders said wedge elastically deformable; and wherein said wedge is made of polyether ether ketone.
Claim 7
Dependent Claim
34 words
An intervertebral implant according to claim 4 , wherein said opening has a substantially rectangular parallelepiped shape with two parallel faces perpendicular to an axis intersecting the axes of said grooves at right angles.
Claim 8
Dependent Claim
127 words
An intervertebral implant according to claim 4 , wherein said wedge has two superposed openings between said two grooves, each opening having an axis, and the axes of said openings and the axes of said two grooves are substantially parallel to each other, the intervertebral implant further including a single fixing band whose first end is connected to said wedge by said fixing means and whose second end is connected to said wedge by said self-locking fixing means formed in one of its lateral walls, and wherein said wedge further has, in the lateral wall opposite said lateral wall having the self-locking fixing means, guide means in which said fixing band can slide so that said band is able to surround said spinous processes and said wedge.
Claim 9
Dependent Claim
133 words
An intervertebral implant according to claim 4 , including a fixing band adapted to retain said wedge between said processes, said wedge further having: fixing means for connecting said band to said wedge, and self-locking fixing means in its lateral walls adapted to receive said fixing band in order to immobilize it relative to said wedge, wherein said fixing means include at least one lateral bore in one of said flanges opening into one of said grooves, and wherein said self-locking fixing means include at least two separate blind lateral bores having an intersection and a longitudinal bore passing through the flange opposite the flange having a lateral bore and opening into said intersection, and said longitudinal bore and said lateral bores are adapted to receive said fixing band to form a loop.
Claim 10
Dependent Claim
135 words
An intervertebral implant including a wedge which is adapted to be inserted between two spinous processes, wherein said wedge has two opposite grooves each having an axis and each being defined by two flanges, the axes of said two grooves being substantially parallel to each other and for engagement of said spinous processes therein, said wedge has at least one central opening between said two grooves, said central opening passes completely through said wedge along an axis substantially parallel to the axes of said grooves, and the volume of said central opening is from 10%to 30% of the total volume of said wedge, which renders said wedge elastically deformable; wherein said opening has a substantially rectangular parallelepiped shape with two parallel faces perpendicular to an axis intersecting the axes of said grooves at right angles.
Claim 11
Dependent Claim
135 words
An intervertebral implant including a wedge which is adapted to be inserted between two spinous processes, wherein said wedge has two opposite grooves each having an axis and each being defined by two flanges, the axes of said two grooves being substantially parallel to each other and for engagement of said spinous processes therein, said wedge has at least one central opening between said two grooves, said central opening passes completely through said wedge along an axis substantially parallel to the axes of said grooves, and the volume of said central opening is from 10%to 30% of the total volume of said wedge, which renders said wedge elastically deformable; wherein said opening has a substantially rectangular parallelepiped shape with two parallel faces perpendicular to an axis intersecting the axes of said grooves at right angles.
Claim 12
Dependent Claim
127 words
An intervertebral implant according to claim 8 , wherein said wedge has two superposed openings between said two grooves, each opening having an axis, and the axes of said openings and the axes of said two grooves are substantially parallel to each other, the intervertebral implant further including a single fixing band whose first end is connected to said wedge by said fixing means and whose second end is connected to said wedge by said self-locking fixing means formed in one of its lateral walls, and wherein said wedge further has, in the lateral wall opposite said lateral wall having the self-locking fixing means, guide means in which said fixing band can slide so that said band is able to surround said spinous processes and said wedge.
Claim 13
Dependent Claim
133 words
An intervertebral implant according to claim 8 , including a fixing band adapted to retain said wedge between said processes, said wedge further having: fixing means for connecting said band to said wedge, and self-locking fixing means is its lateral walls adapted to receive said fixing band is order to immobilize it relative to said wedge, wherein said fixing means include at least one lateral bore in one of said flanges opening into one of said grooves, and wherein said self-locking fixing means include at least two separate blind lateral bores having an intersection and a longitudinal bore passing through the flange opposite the flange having a lateral bore and opening into said intersection, and said longitudinal bore and said lateral bores are adapted to receive said fixing band to form a loop.
Claim 14
Dependent Claim
158 words
An intervertebral implant including a wedge which is adapted to be inserted between two spinous processes, and a fixing band adapted to retain said wedge between said processes, wherein said wedge has two opposite grooves each having as axis and each being defined by two flanges, the axes of said two grooves being substantially parallel to each other and for engagement of said spinous processes therein, said wedge has at least one central opening between said two grooves, said central opening passes completely through said wedge along an axis substantially parallel to the axes of said grooves, and the volume of said central opening is from 10% to 30% of the total volume of said wedge, which renders said wedge elastically deformable; said wedge further having: fixing means for connecting said band to said wedge; and self-locking fixing means in its lateral walls adapted to receive said fixing band in order to immobilize it relative to said wedge.
Claim 15
Dependent Claim
158 words
An intervertebral implant including a wedge which is adapted to be inserted between two spinous processes, and a fixing band adapted to retain said wedge between said processes, wherein said wedge has two opposite grooves each having as axis and each being defined by two flanges, the axes of said two grooves being substantially parallel to each other and for engagement of said spinous processes therein, said wedge has at least one central opening between said two grooves, said central opening passes completely through said wedge along an axis substantially parallel to the axes of said grooves, and the volume of said central opening is from 10% to 30% of the total volume of said wedge, which renders said wedge elastically deformable; said wedge further having: fixing means for connecting said band to said wedge; and self-locking fixing means in its lateral walls adapted to receive said fixing band in order to immobilize it relative to said wedge.
Claim 16
Dependent Claim
29 words
An intervertebral implant according to claim 4 , wherein said fixing means include at least one lateral bore in one of said flanges opening into one of said grooves.
Claim 17
Dependent Claim
34 words
An intervertebral implant according to claim 11 , wherein said opening has a substantially rectangular parallelepiped shape with two parallel faces perpendicular to an axis intersecting the axes of said grooves at right angles.
Claim 18
Dependent Claim
127 words
An intervertebral implant according to claim 11 , wherein said wedge has two superposed openings between said two grooves, each opening having an axis, and the axes of said openings and the axes of said two groves are substantially parallel to each other, the intervertebral implant further including a single fixing band whose first end is connected to said wedge by said fixing means and whose second end is connected to said wedge by said self-locking fixing means formed in one of its lateral walls, and wherein said wedge further has, in the lateral wall opposite said lateral wall having the self-locking fixing means, guide means in which said fixing band can slide so that said band is able to surround said spinous processes and said wedge.
Claim 19
Dependent Claim
85 words
An intervertebral implant according to claim 8 , wherein said fixing means include at least one lateral bore in one of said flanges opening into one of said grooves, and wherein said self-locking fixing means include at least two separate blind lateral bores having an intersection and a longitudinal bore passing through the flange opposite the flange having a lateral bore and opening into said intersection, and said longitudinal bore and said lateral bore are adapted to receive said fixing band to form a loop.
Claim 20
Dependent Claim
17 words
An intervertebral implant according to claim 8 , wherein said wedge is made of polyether ether ketone.
References Cited (Backward Citations)
US5496318A
Cited
FR2722088A1
Cited
WO1997009000A1
Cited
US6602293B1
Cited
US5836948A
Cited
WO1999040866A1
Cited
FR2775183A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2008-09-19 | 2009-03-21 | 2009-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-09-19 | 2013-03-21 | 2013-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-09-19 | 2017-03-21 | 2017-09-20 | $7700.00 | Window Closed / Lapsed |