US20030065394A1
Expired / Lapsed
US
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Spinal fusion implant having a curved end
Assignee: Warsaw Orthopedic Inc
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Filing: 2002-11-08
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Granted: —
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Expires: 2022-11-08
Abstract
Abstract An artificial spinal implant is disclosed which when placed between two adjacent vertebrae directly participates and is incorporated in the ensuing fusion. Instrumentation and procedure is also disclosed.
Inventors
- 👤 Gary Michelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:07
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/46; A61F2/4603; A61F2/4611; A61B; A61B17/00; A61B17/16; A61B17/1662; A61B17/1671; A61B17/17; A61B17/1739; A61B17/1757; A61F2/44; A61F2/4455; A61F2/446; A61B17/56; A61B17/58; A61B17/88; A61B17/8875; A61B17/8886; A61B17/8888; A61B17/02; A61B17/025; A61B2017/0256; A61B90/00; A61B90/03; A61B2090/033; A61B2090/036; A61F2/30721; A61F2/30744; A61F2/442; A61F2/28; A61F2002/2835; A61F2002/30001; A61F2002/30108; A61F2002/3011; A61F2002/30138; A61F2002/30143; A61F2002/30199; A61F2002/30224; A61F2002/30235; A61F2002/30316; A61F2002/30329; A61F2002/30405; A61F2002/30535; A61F2002/30593; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30774; A61F2002/30784; A61F2002/30785; A61F2002/30787; A61F2002/3085; A61F2002/448; A61F2002/4619; A61F2002/4625; A61F2002/4627; A61F2002/4629; A61F2002/4681; A61F2220/00; A61F2220/0025; A61F2230/00; A61F2230/0002; A61F2230/0017; A61F2230/0063; A61F2230/0069
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
153 words
1 . An artificial interbody spinal fusion implant for insertion across the height of a disc space and at least in part in between two adjacent vertebral bodies of a human spine, said implant comprising: a leading end for insertion into the spine and a trailing end opposite said leading end, at least one of said leading and trailing ends being at least in part curved; opposed arcuate portions adapted for placement toward and at least in part within the adjacent vertebral bodies and having a distance therebetween defining an implant height greater than the surgically corrected height of the disc space to be fused, each of said opposed arcuate portions having at least one opening in communication with one another for permitting for the growth of bone from vertebral body to adjacent vertebral body through said implant; and said implant comprising at least in part of an implantation material other than bone.
Claim 2
Dependent Claim
153 words
1 . An artificial interbody spinal fusion implant for insertion across the height of a disc space and at least in part in between two adjacent vertebral bodies of a human spine, said implant comprising: a leading end for insertion into the spine and a trailing end opposite said leading end, at least one of said leading and trailing ends being at least in part curved; opposed arcuate portions adapted for placement toward and at least in part within the adjacent vertebral bodies and having a distance therebetween defining an implant height greater than the surgically corrected height of the disc space to be fused, each of said opposed arcuate portions having at least one opening in communication with one another for permitting for the growth of bone from vertebral body to adjacent vertebral body through said implant; and said implant comprising at least in part of an implantation material other than bone.
Claim 3
Dependent Claim
23 words
2 . The spinal fusion implant of claim 1 , wherein at least one of said ends is at least in part convex.
Claim 4
Dependent Claim
30 words
3 . The spinal fusion implant of claim 1 , wherein said at least in part curved portion of said at least one of said ends comprises a removable cap.
Claim 5
Dependent Claim
19 words
4 . The spinal fusion implant of claim 3 , wherein said cap is at least in part convex.
Claim 6
Dependent Claim
47 words
5 . The spinal fusion implant of claim 1 , wherein each of said opposed arcuate portions comprises an interior surface, said interior surfaces being spaced apart to define a hollow interior in communication with said at least one opening of each of said opposed arcuate portions.
Claim 7
Dependent Claim
26 words
6 . The spinal fusion implant of claim 5 , wherein at least one of said ends is open to allow access to said hollow interior.
Claim 8
Dependent Claim
33 words
7 . The spinal fusion implant of claim 6 , wherein said at least one end providing access to said hollow interior of said implant is adapted to be closed by a cap.
Claim 9
Dependent Claim
37 words
8 . The spinal fusion implant of claim 7 , wherein said implant having said at least one end providing access to said hollow interior is in combination with a cap adapted to close said hollow interior.
Claim 10
Dependent Claim
21 words
9 . The spinal fusion implant of claim 8 , wherein said cap includes said at least in part curved portion.
Claim 11
Dependent Claim
38 words
10 . The spinal fusion implant of claim 1 , further comprising a protrusion extending from each of said opposed arcuate portions for engaging each of the adjacent vertebral bodies to maintain said implant within the disc space.
Claim 12
Dependent Claim
16 words
11 . The spinal fusion implant of claim 10 , wherein said protrusion comprises a thread.
Claim 13
Dependent Claim
21 words
12 . The spinal fusion implant of claim 1 , further comprising a plurality of cells for retaining fusion promoting substance.
Claim 14
Dependent Claim
19 words
13 . The spinal fusion implant of claim 1 , wherein said opposed arcuate portions have a porous surface.
Claim 15
Dependent Claim
16 words
14 . The spinal fusion implant of claim 1 , wherein said implantation material is porous.
Claim 16
Dependent Claim
22 words
15 . The spinal fusion implant of claim 1 , wherein said implantation material comprises a fusion promoting substance other than bone.
Claim 17
Dependent Claim
19 words
16 . The spinal fusion implant of claim 11 , wherein said implantation material comprises a bone ingrowth material.
Claim 18
Dependent Claim
36 words
17 . The spinal fusion implant of claim 1 , wherein said implantation material intrinsically participates in the growth of bone from one of the adjacent vertebral bodies to the other of the adjacent vertebral bodies.
Claim 19
Dependent Claim
20 words
18 . The spinal fusion implant of claim 1 , wherein said implant is treated with a fusion promoting substance.
Claim 20
Dependent Claim
20 words
19 . The spinal fusion implant of claim 1 , wherein said opposed arcuate portions have a bone ingrowth surface.
Claim 21
Dependent Claim
18 words
20 . The spinal fusion implant of claim 1 , wherein said implantation material is stronger than bone.
Claim 22
Dependent Claim
17 words
21 . The spinal fusion implant of claim 1 , in combination with a source of osteogenesis.
Claim 23
Dependent Claim
18 words
22 . The spinal fusion implant of claim 1 , in combination with a bone growth promoting substance.
Claim 24
Dependent Claim
14 words
23 . The spinal fusion implant of claim 1 , in combination with bone.
Claim 25
Dependent Claim
19 words
24 . The spinal fusion implant of claim 23 , wherein said bone is compressively loaded in said implant.
Claim 26
Dependent Claim
18 words
25 . The spinal fusion implant of claim 1 , in combination with a material other than bone.
Claim 27
Dependent Claim
61 words
26 . The spinal fusion implant of claim 1 , in combination with a guard and a bone removal device, said guard for providing protected access to prepare across the spinal disc and into the adjacent vertebral bodies the implantation space, said guard having a passage through which said bone removal device passes to form the implantation space through said guard.
Claim 28
Dependent Claim
36 words
27 . The spinal fusion implant of claim 26 , wherein said implant is configured to have a height greater than the height of the implantation space and to pass through said passage of said guard.
Claim 29
Dependent Claim
29 words
28 . The spinal fusion implant of claim 1 , wherein said trailing end is adapted to cooperatively engage an insertion device for inserting said implant into the spine.
Claim 30
Dependent Claim
37 words
29 . The spinal fusion implant of claim 28 , in combination with an insertion device for inserting said implant into the spine, said insertion device being adapted to cooperatively engage said trailing end of said implant.
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