EP0637440B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Interbody implant for the spine
Assignee: Advanced Technical Fabrication SA
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Filing: 1994-08-01
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Granted: 1997-10-15
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Expires: 2014-08-01
Abstract
Abstract The implant is tubular and hollow in shape and has an inner cavity (1) bounded by a peripheral wall (2) with communicating apertures (9-12). The wall has an outer surface (4) which is generally circular in shape, two solid side faces (5, 6), and upper and lower surfaces (7, 8) which have the apertures in them. The implant's outer surface has at least one anti-recoil rib (13). The implant's outer wall (2) has the general shape of a truncated cone or ovoid with its larger base situated at its first end (3), and it has outer annular ribs (13, 14, 17) at each end and in the middle, one or more of which can be toothed.
Inventors
- 👤 Jean Godefroy
- 👤 Claude Laville
- 👤 Raymond Roy-Camille
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 20:17
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61F2/4455; A61F2/446; A61F2/442; A61F2/46; A61F2/4603; A61F2/4611; A61F2/28; A61F2002/2835; A61F2002/30001; A61F2002/30108; A61F2002/3011; A61F2002/30138; A61F2002/30158; A61F2002/30199; A61F2002/30205; A61F2002/3021; A61F2002/30217; A61F2002/30252; A61F2002/30253; A61F2002/30316; A61F2002/30317; A61F2002/30327; A61F2002/30535; A61F2002/30537; A61F2002/30538; A61F2002/3054; A61F2002/30593; A61F2002/30617; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30774; A61F2002/30777; A61F2002/30784; A61F2002/30785; A61F2002/30841; A61F2002/30878; A61F2002/30879; A61F2002/30904; A61F2230/00; A61F2230/0002; A61F2230/0017; A61F2230/0026; A61F2230/0063; A61F2230/0067; A61F2230/0073; A61F2230/0076; A61F2250/00; A61F2250/0014; A61F2250/0039; A61F2250/0058; A61F2250/0096; A61F2250/0097
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
92 words
Hollow tubular intersomatic implant for stabilization of the vertebral column, comprising an internal cavity (1) delimited by a peripheral wall (2) comprising a generally circular cross-section external surface (4) and having communicating holes (9, 10, 11, 12), characterized in that the external surface (4) is composed of two solid side surfaces (5, 6) and top (7) and bottom surfaces (8) having said communicating holes (9, 10, 11, 12) in them, and in that the peripheral wall comprises at least one annular external rib (13) that prevent retrograde movement that can be interrupted.
Claim 2
Dependent Claim
21 words
Implant according to claim 1, characterized in that the peripheral wall (2) further comprises at least one rotation preventing external relief.
Claim 3
Dependent Claim
38 words
Implant according to claim 1 or claim 2, characterized in that the peripheral wall (2) is generally frustoconical or ovoidal with truncated longitudinal ends the larger base of which consists of the surface at its first end (3).
Claim 4
Dependent Claim
36 words
Implant according to any one of claims 1 to 3, characterized in that the peripheral wall (2) comprises a respective annular external rib (13, 14) near its first end (3) and near its second end (15).
Claim 5
Dependent Claim
32 words
Implant according to claim 4, characterized in that it further comprises an intermediate annular external rib (16) in an intermediate area (17) of the wall in which there are no communicating holes.
Claim 6
Dependent Claim
33 words
Implant according to claim 2, characterized in that said rotation preventing external relief comprises at least one tooth projecting from at least one of the annular external ribs (13) for preventing retrograde movement.
Claim 7
Dependent Claim
23 words
Implant according to any one of claims 1 to 6, characterized in that the side surfaces (5, 6) have no annular external ribs.
Claim 8
Dependent Claim
24 words
Implant according to any one of claims 1 to 7, characterized in that the side surfaces (5, 6) include a flat on their outside.
Claim 9
Dependent Claim
30 words
Implant according to any one of claims 1 to 8, characterized in that the peripheral wall (2) is joined, at its second end (15), to a transverse bearing wall (22).
Claim 10
Dependent Claim
24 words
Implant according to claim 9, characterized in that the transverse bearing wall (22) comprises a threaded axial hole (23) for fitting an inserting tool.
Claim 11
Dependent Claim
28 words
Implant according to claim 10, characterized in that the transverse bearing wall (22) includes external reliefs (24) for preventing rotation of the inserting tool relative to the implant.
Claim 12
Dependent Claim
31 words
Implant according to claim 11, characterized in that the external reliefs (24) are shaped to constitute means for visually indicating the angular position of the implant about its longitudinal axis (I-I).
References Cited (Backward Citations)
No citation records indexed.
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