Patent US20020161443A1 successfully refreshed from Google Patents.
US20020161443A1
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Artificial contoured spinal fusion implants made of a material other than bone
Assignee: Warsaw Orthopedic Inc
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Filing: 2002-04-02
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Granted: —
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Expires: 2022-04-02
Abstract
Abstract An interbody spinal implant made of a material other than bone adapted for placement across an intervertebral space formed across the height of a disc space between two adjacent vertebral bodies. The implant has a leading end that includes at least a portion of an arc of a circle from side to side, and sides that are at least in part straight or a trailing end having a radius of curvature of another circle from side to side.
Inventors
- 👤 Gary Michelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:59
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61F2/4455; A61F2/28; A61F2/30721; A61F2/30749; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/84; A61B17/86; A61F2/30767; A61F2/3094; A61F2/30965; A61F2/46; A61F2/4603; A61F2/4611; A61F2002/2817; A61F2002/2835; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30062; A61F2002/30108; A61F2002/3011; A61F2002/30112; A61F2002/30113; A61F2002/30116; A61F2002/30131; A61F2002/30182; A61F2002/30192; A61F2002/30316; A61F2002/30329; A61F2002/30405; A61F2002/30476; A61F2002/30507; A61F2002/30517; A61F2002/30535; A61F2002/30593; A61F2002/30667; A61F2002/30677; A61F2/30771; A61F2002/30772; A61F2002/30774; A61F2002/30777; A61F2002/30779; A61F2002/30784; A61F2002/30785; A61F2002/30787; A61F2002/30836; A61F2002/30841; A61F2002/30904; A61F2002/448; A61F2210/00; A61F2210/0004; A61F2220/00; A61F2220/0025; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0013; A61F2230/0028; A61F2230/0041; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00017; A61F2310/00023; A61F2310/00029; A61F2310/00035; A61F2310/00131; A61F2310/00179; A61F2310/00293; Y; Y10; Y10S; Y10S606/00; Y10S606/907; Y10S606/908
Claims Analysis
Total Claims: 61
Claim 1
Independent Claim
303 words
1 . An artificial interbody spinal implant for insertion at least in part into an implantation space formed across the height of a disc space between adjacent vertebral bodies of a human spine, the vertebral bodies having an anterior aspect and a posterior aspect and a depth therebetween, said implant comprising: a leading end for insertion first into the disc space and a trailing end opposite said leading end, said implant having a length from said leading end to said trailing end; opposed upper and lower portions between said leading and trailing ends adapted to be placed at least in part within and across the height of the disc space to contact and support the adjacent vertebral bodies, said upper and lower portions defining a height of said implant, said upper and lower portions being non-arcuate along at least a portion of the length of said implant; and opposite sides between said upper portion and said lower portion, and between said leading and trailing ends, said opposite sides defining a width of said implant, at least one of said opposite sides being at least in part straight along at least a portion of the length of said implant, said leading end configured in the shape of approximately one half of a circle from one of said opposite sides to another one of said opposite sides, the circle having a diameter generally equal to the width of said implant, the width of said implant being greater than the height of said implant; said implant being manufactured from a material other than bone, said upper and lower portions of said implant including at least one opening in communication with one another and adapted to hold bone growth promoting material for permitting for the growth of bone from vertebral body to vertebral body through said implant.
Claim 2
Dependent Claim
303 words
1 . An artificial interbody spinal implant for insertion at least in part into an implantation space formed across the height of a disc space between adjacent vertebral bodies of a human spine, the vertebral bodies having an anterior aspect and a posterior aspect and a depth therebetween, said implant comprising: a leading end for insertion first into the disc space and a trailing end opposite said leading end, said implant having a length from said leading end to said trailing end; opposed upper and lower portions between said leading and trailing ends adapted to be placed at least in part within and across the height of the disc space to contact and support the adjacent vertebral bodies, said upper and lower portions defining a height of said implant, said upper and lower portions being non-arcuate along at least a portion of the length of said implant; and opposite sides between said upper portion and said lower portion, and between said leading and trailing ends, said opposite sides defining a width of said implant, at least one of said opposite sides being at least in part straight along at least a portion of the length of said implant, said leading end configured in the shape of approximately one half of a circle from one of said opposite sides to another one of said opposite sides, the circle having a diameter generally equal to the width of said implant, the width of said implant being greater than the height of said implant; said implant being manufactured from a material other than bone, said upper and lower portions of said implant including at least one opening in communication with one another and adapted to hold bone growth promoting material for permitting for the growth of bone from vertebral body to vertebral body through said implant.
Claim 3
Dependent Claim
41 words
2 . The implant of claim 1 , wherein said implant has a maximum width between said opposite sides that is greater than one-half of the width of the adjacent vertebral bodies into which said implant is adapted to be inserted.
Claim 4
Dependent Claim
41 words
3 . The implant of claim 1 , wherein said implant has a maximum width between said opposite sides that is less than one-half of the width of the adjacent vertebral bodies into which said implant is adapted to be inserted.
Claim 5
Dependent Claim
33 words
4 . The implant of claim 3 , wherein said implant is adapted to be inserted side by side a second of said implant into the disc space between the adjacent vertebral bodies.
Claim 6
Dependent Claim
33 words
5 . The implant of claim 1 , wherein at least a portion of said leading end has a reduced height to facilitate insertion of said implant between the two adjacent vertebral bodies.
Claim 7
Dependent Claim
53 words
6 . The implant of claim 1 , wherein said trailing end is adapted to conform from side to side to at least a portion of the peripheral contour of at least one of the anterior and posterior aspects of the vertebral bodies adjacent a disc space into which said implant is inserted.
Claim 8
Dependent Claim
25 words
7 . The implant of claim 1 , wherein said trailing end has a radius of curvature of a second circle from side to side.
Claim 9
Dependent Claim
30 words
8 . The implant of claim 7 , wherein the radius of curvature said trailing end is greater than the radius of curvature of the leading end of said implant.
Claim 10
Dependent Claim
22 words
9 . The implant of claim 1 , wherein said at least one opening is between said opposite sides of said implant.
Claim 11
Dependent Claim
22 words
10 . The implant of claim 1 , wherein said at least one opening intersects at least one of said opposite sides.
Claim 12
Dependent Claim
24 words
11 . The implant of claim 1 , wherein said at least one opening is between said leading and trailing ends of said implant.
Claim 13
Dependent Claim
40 words
12 . The implant of claim 1 , wherein said implant has a mid-longitudinal axis along the length, at least one of said opposite sides being at least in part oriented generally parallel to the mid-longitudinal axis of said implant.
Claim 14
Dependent Claim
21 words
13 . The implant of claim 1 , wherein said opposite sides are at least in part generally parallel one another.
Claim 15
Dependent Claim
45 words
14 . The implant of claim 1 , wherein at least a portion of said upper and lower surfaces are in an angular relationship to each other from trailing end to leading end for allowing angulation of the adjacent vertebral bodies relative to each other.
Claim 16
Dependent Claim
28 words
15 . The implant of claim 1 , wherein said implant has a maximum length less than and approximating the posterior to anterior depth of the vertebral bodies.
Claim 17
Dependent Claim
53 words
16 . The implant of claim 1 , further comprising a bone engaging surface formed on the exterior of at least said upper and lower portions for engaging the adjacent vertebral bodies, said bone engaging surface including at least one of a protrusion, a ratchet, a spike, a spline, surface roughenings, and knurling.
Claim 18
Dependent Claim
67 words
17 . The implant of claim 1 , wherein said implant includes at least two members, each member having a leading portion, a trailing portion, a top, a bottom, and at least one side, each member being adapted to be placed side by side with another of said members, said leading portion of said members forming said leading end of said implant when placed side by side.
Claim 19
Dependent Claim
25 words
18 . The implant of claim 17 , wherein said implant includes two of said members, each member being a mirror image of the other.
Claim 20
Dependent Claim
22 words
19 . The implant of claim 17 , wherein each member includes at least a portion of said at least one opening.
Claim 21
Dependent Claim
16 words
20 . The implant of claim 1 , in combination with a bone growth promoting material.
Claim 22
Dependent Claim
42 words
21 . The implant of claim 20 , wherein said bone growth promoting material is selected from one of bone, bone derived products, demineralized bone matrix, mineralizing proteins, ossifying proteins, bone morphogenetic protein, hydroxyapatite, and genes coding for the production of bone.
Claim 23
Dependent Claim
19 words
22 . The implant of claim 1 , wherein said implant is treated with a bone growth promoting substance.
Claim 24
Dependent Claim
17 words
23 . The implant of claim 1 , wherein said implant is at least in part resorbable.
Claim 25
Dependent Claim
19 words
24 . The implant of claim 1 , in combination with a chemical substance adapted to inhibit scar formation.
Claim 26
Dependent Claim
14 words
25 . The implant of claim 1 , in combination with an antimicrobial material.
Claim 27
Dependent Claim
31 words
26 . The implant of claim 1 , wherein at least a portion of said implant is treated to promote bone in growth between said implant and said adjacent vertebral bodies.
Claim 28
Dependent Claim
17 words
27 . The implant of claim 1 , in combination with at least one spinal fixation implant.
Claim 29
Dependent Claim
34 words
28 . The implant of claim 1 , wherein said trailing end is adapted to receive at least one bone screw adapted to engage at least one vertebral body when inserted through said implant.
Claim 30
Dependent Claim
22 words
29 . The implant of claim 28 , further comprising a lock for locking at least one bone screw to said implant.
Claim 31
Dependent Claim
252 words
30 . An artificial interbody spinal implant for insertion at least in part into an implantation space formed across the height of a disc space between adjacent vertebral bodies of a human spine, the vertebral bodies having an anterior aspect and a posterior aspect and a depth therebetween, said implant comprising: a leading end for insertion first into the disc space and a trailing end opposite said leading end, said implant having a length from said leading end to said trailing end; opposed upper and lower portions between said leading and trailing ends adapted to be placed at least in part within and across the height of the disc space to contact and support the adjacent vertebral bodies; said implant having a maximum width that is greater than one-half of the width of the adjacent vertebral bodies into which said implant is adapted to be inserted, said leading end configured in the shape of approximately one half of a first circle along the width of said implant, said trailing end having a radius of curvature of a second circle along the width of said implant, the second circle having a radius greater than the radius of the first circle; and said implant being manufactured from a material other than bone, said upper and lower portions of said implant including at least one opening in communication with one another and adapted to hold bone growth promoting material for permitting for the growth of bone from vertebral body to vertebral body through said implant.
Claim 32
Dependent Claim
252 words
30 . An artificial interbody spinal implant for insertion at least in part into an implantation space formed across the height of a disc space between adjacent vertebral bodies of a human spine, the vertebral bodies having an anterior aspect and a posterior aspect and a depth therebetween, said implant comprising: a leading end for insertion first into the disc space and a trailing end opposite said leading end, said implant having a length from said leading end to said trailing end; opposed upper and lower portions between said leading and trailing ends adapted to be placed at least in part within and across the height of the disc space to contact and support the adjacent vertebral bodies; said implant having a maximum width that is greater than one-half of the width of the adjacent vertebral bodies into which said implant is adapted to be inserted, said leading end configured in the shape of approximately one half of a first circle along the width of said implant, said trailing end having a radius of curvature of a second circle along the width of said implant, the second circle having a radius greater than the radius of the first circle; and said implant being manufactured from a material other than bone, said upper and lower portions of said implant including at least one opening in communication with one another and adapted to hold bone growth promoting material for permitting for the growth of bone from vertebral body to vertebral body through said implant.
Claim 33
Dependent Claim
27 words
31 . The implant of claim 30 , wherein said leading end and said trailing end of said implant intersect at diametrically opposite points of said implant.
Claim 34
Dependent Claim
24 words
32 . The implant of claim 30 , wherein said width of said implant is approximately equal to the diameter of the first circle.
Claim 35
Dependent Claim
36 words
33 . The implant of claim 30 , wherein said implant has a height from said upper portion to said lower portion, the height of said implant being less than the maximum width of said implant.
Claim 36
Dependent Claim
33 words
34 . The implant of claim 30 , wherein at least a portion of said leading end has a reduced height to facilitate insertion of said implant between the two adjacent vertebral bodies.
Claim 37
Dependent Claim
47 words
35 . The implant of claim 30 , wherein said trailing end is adapted to conform from side to side to at least a portion of the peripheral contour of the anterior aspect of the vertebral bodies adjacent a disc space into which said implant is inserted.
Claim 38
Dependent Claim
26 words
36 . The implant of claim 30 , wherein said implant has a perimeter, said at least one opening being within said perimeter of said implant.
Claim 39
Dependent Claim
30 words
37 . The implant of claim 30 , wherein said implant has a perimeter, said at least one opening intersecting at least a portion of said perimeter of said implant.
Claim 40
Dependent Claim
24 words
38 . The implant of claim 30 , wherein said at least one opening is between said leading and trailing ends of said implant.
Claim 41
Dependent Claim
20 words
39 . The implant of claim 30 , further comprising opposite sides between said leading end and said trailing end.
Claim 42
Dependent Claim
33 words
40 . The implant of claim 39 , wherein at least one of said opposite sides is at least in part straight along at least a portion of the length of said implant.
Claim 43
Dependent Claim
40 words
41 . The implant of claim 39 , wherein said implant has a mid-longitudinal axis along the length, at least one of said opposite sides being at least in part oriented generally parallel to the mid-longitudinal axis of said implant.
Claim 44
Dependent Claim
21 words
42 . The implant of claim 39 , wherein said opposite sides are at least in part generally parallel one another.
Claim 45
Dependent Claim
45 words
43 . The implant of claim 30 , wherein at least a portion of said upper and lower surfaces are in an angular relationship to each other from trailing end to leading end for allowing angulation of the adjacent vertebral bodies relative to each other.
Claim 46
Dependent Claim
28 words
44 . The implant of claim 30 , wherein said implant has a maximum length less than and approximating the posterior to anterior depth of the vertebral bodies.
Claim 47
Dependent Claim
53 words
45 . The implant of claim 30 , further comprising a bone engaging surface formed on the exterior of at least said upper and lower portions for engaging the adjacent vertebral bodies, said bone engaging surface including at least one of a protrusion, a ratchet, a spike, a spline, surface roughenings, and knurling.
Claim 48
Dependent Claim
67 words
46 . The implant of claim 30 , wherein said implant includes at least two members, each member having a leading portion, a trailing portion, a top, a bottom, and at least one side, each member being adapted to be placed side by side with another of said members, said leading portion of said members forming said leading end of said implant when placed side by side.
Claim 49
Dependent Claim
25 words
47 . The implant of claim 46 , wherein said implant includes two of said members, each member being a mirror image of the other.
Claim 50
Dependent Claim
22 words
48 . The implant of claim 46 , wherein each member includes at least a portion of said at least one opening.
Claim 51
Dependent Claim
16 words
49 . The implant of claim 30 , in combination with a bone growth promoting material.
Claim 52
Dependent Claim
42 words
50 . The implant of claim 49 , wherein said bone growth promoting material is selected from one of bone, bone derived products, demineralized bone matrix, mineralizing proteins, ossifying proteins, bone morphogenetic protein, hydroxyapatite, and genes coding for the production of bone.
Claim 53
Dependent Claim
19 words
51 . The implant of claim 30 , wherein said implant is treated with a bone growth promoting substance.
Claim 54
Dependent Claim
17 words
52 . The implant of claim 30 , wherein said implant is at least in part resorbable.
Claim 55
Dependent Claim
19 words
53 . The implant of claim 30 , in combination with a chemical substance adapted to inhibit scar formation.
Claim 56
Dependent Claim
14 words
54 . The implant of claim 30 , in combination with an antimicrobial material.
Claim 57
Dependent Claim
31 words
55 . The implant of claim 30 , wherein at least a portion of said implant is treated to promote bone in growth between said implant and said adjacent vertebral bodies.
Claim 58
Dependent Claim
17 words
56 . The implant of claim 30 , in combination with at least one spinal fixation implant.
Claim 59
Dependent Claim
38 words
57 . The implant of claim 39 , further comprising a curved transition between at least one of said opposite sides and said trailing end, said curved transition forming at least part of an arc of a circle.
Claim 60
Dependent Claim
34 words
58 . The implant of claim 30 , wherein said trailing end is adapted to receive at least one bone screw adapted to engage at least one vertebral body when inserted through said implant.
Claim 61
Dependent Claim
22 words
59 . The implant of claim 58 , further comprising a lock for locking at least one bone screw to said implant.
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