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EP0646366B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Spinal implant
Assignee: DePuy Spine LLC
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Filing: 1994-10-04
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Granted: 1997-12-17
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Expires: 2014-10-04
Abstract
Abstract A spinal implant for use in distracting and maintaining spinal disc height while promoting fusion of adjacent vertebrae of a spinal column includes first and second side surfaces extending substantially parallel to each other. Upper and lower surfaces for engaging the adjacent vertebrae extend between the first and second side surfaces and extend from a first end portion to a second end portion of the spinal implant. The spinal implant includes recesses located in the first and second side surfaces for receiving an instrument to rotate the spinal implant. A method of fusing together the adjacent vertebrae using the spinal implant includes removing at least a portion of the spinal disc between the adjacent vertebrae. The spinal implant is inserted between the adjacent vertebrae with the first and second parallel side surfaces facing the adjacent vertebrae. The spinal implant is rotated into a position in which the parallel side surfaces extend from one of the adjacent vertebrae to the other adjacent vertebrae and the upper and lower surfaces engage the adjacent vertebrae. <IMAGE>
Inventors
- 👤 Arthur D. Steffee
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 03:34
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/46; A61F2/4603; A61F2/4611; A61F2/44; A61B; A61B17/00; A61B17/56; A61B17/58; A61F2/4455; A61F2/447; A61B17/02; A61B17/025; A61B2017/0256; A61F2/442; A61F2/28; A61F2002/2835; A61F2002/30001; A61F2002/30108; A61F2002/3011; A61F2002/30138; A61F2002/30158; A61F2002/30199; A61F2002/30261; A61F2002/30316; A61F2002/30535; A61F2002/30593; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30784; A61F2002/30785; A61F2002/30904; A61F2002/448; A61F2002/4622; A61F2002/4625; A61F2002/4627; A61F2002/4628; A61F2230/00; A61F2230/0002; A61F2230/0017; A61F2230/0026; A61F2230/0063; A61F2230/0082
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
283 words
A spinal implant (10, 10a, 10b) for use in fusing together adjacent vertebrae (12, 14) of a spinal column (16) comprising: first and second side surfaces (20, 20a, 20b; 22, 22a, 22b) extending substantially parallel to each other; upper and lower surface means (24, 24a, 24b; 26, 26a, 26b) for engaging the adjacent vertebrae (12, 14) extending between said first and second side surfaces (20, 20a, 20b; 22, 22a, 22b); first and second end portions (30, 30a, 30b; 32, 32a, 32b); and means (60, 60a, 60b; 62, 62a, 62b) for engaging a tool (80) for rotating said spinal implant (10, 10a, 10b), characterized in that, said means (60, 60a, 60b; 62, 62a, 62b) for engaging a tool (80) for rotating said spinal implant (10, 10a, 10b) comprising recesses (60, 60a, 60b; 62, 62a, 62b), located adjacent said first end portion (30, 30a, 30b) of said spinal implant (10, 10a, 10b), in said first and second side surfaces (20, 20a, 20b; 22, 22a, 22b) for receiving the tool (80) for grasping and rotating said spinal implant (10, 10a, 10b), whereby said spinal implant (10, 10a, 10b) is rotatable about an axis extending through said first and second end portions (30, 30a, 30b; 32, 32a, 32b) from a position between the adjacent vertebrae (12, 14) in which said first and second side surfaces (20, 20a, 20b; 22, 22a, 22b) face the adjacent vertebrae (12, 14) to a position in which said upper and lower surface means (24, 24a, 24b; 26, 26a, 26b) engage the adjacent vertebrae (12, 14) and said first and second side surfaces (20, 20a, 20b; 22, 22a, 22b) extend from one of the adjacent vertebrae (12) to the other adjacent vertebrae (14).
Claim 2
Dependent Claim
102 words
A spinal implant (10, 10a, 10b) as set forth in claim 1 wherein said upper and lower surface means (24, 24a, 24b; 26, 26a, 26b) extend from said first end portion (30, 30a, 30b) to said second end portion (32, 32a, 32b), said upper and lower surface means (24, 24a, 24b; 26, 26a, 26b) adjacent said first end portion (30, 30a, 30b) being spaced apart by a first distance and said upper and lower surface means (24, 24a, 24b; 26, 26a, 26b) adjacent said second end portion (32, 32a, 32b) being spaced apart by a second distance greater than the first distance.
Claim 3
Dependent Claim
31 words
A spinal implant (10, 10a, 10b) as set forth in claim 1 further including at least one opening (56, 58, 156, 156b, 160) extending through said spinal implant (10, 10a, 10b).
Claim 4
Dependent Claim
27 words
A spinal implant (10b) as set forth in claim 3 wherein said opening (160) extends from said upper surface means (22b) to said lower surface means (24b).
Claim 5
Dependent Claim
36 words
A spinal implant (10, 10a, 10b) as set forth in claim 3 wherein said opening (56, 58, 156, 156b) extends from said first side surface (20, 20a, 20b) to said second side surface (22, 22a, 22b).
Claim 6
Dependent Claim
31 words
A spinal implant (10) as set forth in claim 5 further including a plurality of openings (56, 58) extending from said first side surface (20) to said second side surface (22).
Claim 7
Dependent Claim
27 words
A spinal implant (10) as set forth in claim 6 wherein said openings (56, 58) extend substantially perpendicular to said first and second side surfaces (20, 22).
Claim 8
Dependent Claim
28 words
A spinal implant (10b) as set forth in claim 5 further including an opening (160) extending from said upper surface means (22b) to said lower surface means (24b).
Claim 9
Dependent Claim
44 words
A spinal implant (10b) as set forth in claim 8 wherein said opening (160) extending from said upper surface means (22b) to said lower surface means (24b) intersects said opening (156b) extending from said first side surface (20b) to said second side surface (22b).
Claim 10
Dependent Claim
37 words
A spinal implant (10, 10a, 10b) as set forth in claim 1 wherein said upper and lower surface means (24, 24a, 24b; 26, 26a, 26b) include teeth (36, 36a, 36b) for engaging the adjacent vertebrae (12, 14).
Claim 11
Dependent Claim
34 words
A spinal implant (10, 10a, 10b) as set forth in claim 10 wherein said teeth (36, 36a, 36b) on said upper and lower surface means (24, 24a, 24b; 26, 26a, 26b) are triangular shaped.
Claim 12
Dependent Claim
229 words
A spinal implant (10, 10a, 10b) as set forth in claim 11 wherein each of said teeth (36, 36a, 36b) includes a first surface (40, 40a, 40b) facing toward said first end portion (30, 30a, 30b) and a second surface (42, 42a, 42b) extending from said first surface (40, 40a, 40b) of said tooth (36, 36a, 36b) and facing said second end portion (32, 32a, 32b), said first and second surfaces (40, 40a, 40b, 42, 42a, 42b) of said tooth (36, 36a, 36b) intersecting each other to form an edge (44, 44a, 44b), said first surface (40, 40a, 40b) extending at an acute angle (X, C, F) to a plane (48, 48a, 48b) containing an edge (46, 46a, 46b) of said first surface (40, 40a, 40b) opposite from said edge (44, 44a, 44b) defined by the intersection of said first and second surfaces (40, 40a, 40b; 42, 42a, 42b) and containing an edge (46, 46a, 46b) of said second side surface (42, 42a, 42b) opposite from said edge (44, 44a, 44b) defined by the intersection of said first and second surfaces (40, 40a, 40b; 42, 42a, 42b), said second surface (42, 42a, 42b) extending at an acute angle (Y, D, G) to the plane (48, 48a, 48b) equal to the acute angle (X, C, F) that said first surface (40, 4Oa, 40b) extends from said plane (48, 48a, 48b).
Claim 13
Dependent Claim
28 words
A spinal implant (10, 10a, 10b) as set forth in claim 12 wherein said first surface (40, 40a, 40b) extends perpendicular to said second surface (42, 42a, 42b).
References Cited (Backward Citations)
EP0720455A1
Cited
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