US6096038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for inserting spinal implants
Assignee: Warsaw Orthopedic Inc
•
Filing: 1995-06-07
•
Granted: 2000-08-01
•
Expires: 2015-06-07
Abstract
Abstract Apparatus and a method of inserting spinal implants is disclosed in which an intervertebral space is first distracted, a hollow sleeve having teeth at one end is then driven into the vertebrae adjacent that disc space. A drill is then passed through the hollow sleeve removing disc and bone in preparation for receiving the spinal implant which is then inserted through the sleeve.
Inventors
- 👤 Gary Karlin Michelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:26
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/16; A61B17/1662; A61B17/1671; A61B17/17; A61B17/1739; A61B17/1757; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61F2/4455; A61F2/446; A61F2/46; A61F2/4603; A61F2/4611; A61B17/02; A61B17/025; A61B17/32; A61B17/56; A61B17/58; A61B17/88; A61B17/8875; A61B17/8886; A61B17/8888; A61B2017/0256; A61B17/92; A61B2017/922; A61B90/00; A61B90/03; A61B2090/033; A61B2090/036; A61F2/30721; A61F2/30744; A61F2/442; A61F2/4657; 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; A61F2002/30426; A61F2002/30535; A61F2002/30593; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30774; A61F2002/30784; A61F2002/30785; A61F2002/30787; A61F2002/30795; A61F2002/30797; A61F2002/30836; A61F2002/3085; A61F2002/30904; A61F2002/448; A61F2002/4619; A61F2002/4625; A61F2002/4627; A61F2002/4629; A61F2/4644; A61F2002/4649; A61F2002/4681; A61F2002/4687; A61F2220/00; A61F2220/0025; A61F2230/00; A61F2230/0002; A61F2230/0017; A61F2230/0063; A61F2230/0069
Claims Analysis
Total Claims: 240
Claim 1
Independent Claim
130 words
A spinal distractor for use in spinal surgery for temporarily positioning two adjacent vertebrae in selected relationship to restore the height of the disc space therebetween prior to inserting an implant into the distracted disc space, said spinal distractor comprising: a body; and a disc penetrating extension extending from said body and configured to distract the adjacent vertebrae upon insertion into the disc space between the two adjacent vertebrae, said disc penetrating extension adapted to bear against adjacent endplates of the two adjacent vertebrae, said disc penetrating extension having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates, said disc penetrating extension having a height no greater than the restored height of the disc space.
Claim 2
Dependent Claim
130 words
A spinal distractor for use in spinal surgery for temporarily positioning two adjacent vertebrae in selected relationship to restore the height of the disc space therebetween prior to inserting an implant into the distracted disc space, said spinal distractor comprising: a body; and a disc penetrating extension extending from said body and configured to distract the adjacent vertebrae upon insertion into the disc space between the two adjacent vertebrae, said disc penetrating extension adapted to bear against adjacent endplates of the two adjacent vertebrae, said disc penetrating extension having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates, said disc penetrating extension having a height no greater than the restored height of the disc space.
Claim 3
Dependent Claim
22 words
The spinal distractor of claim 1 further comprising means for limiting the penetration of said disc penetrating extension into the disc space.
Claim 4
Dependent Claim
36 words
The spinal distractor of claim 2 wherein said limiting means comprises a shoulder on said body at the juncture of said disc penetrating extension and said body for preventing said body from entering the disc space.
Claim 5
Dependent Claim
17 words
The spinal distractor of claim 1 wherein said body is removably attached to said disc penetrating extension.
Claim 6
Dependent Claim
25 words
The spinal distractor of claim 4 wherein said disc penetrating extension includes a head proximate the juncture of said disc penetrating extension and said body.
Claim 7
Dependent Claim
24 words
The spinal distractor of claim 4 further comprising means for limiting the depth of insertion of said disc penetrating extension into the disc space.
Claim 8
Dependent Claim
30 words
The spinal distractor of claim 6 wherein said limiting means comprises a head associated with said disc penetrating extension, said head being dimensioned to prevent entry into the disc space.
Claim 9
Dependent Claim
26 words
The spinal distractor of claims 7 wherein said head has a low profile so as to minimize protrusion of said head from the two adjacent vertebrae.
Claim 10
Dependent Claim
19 words
The spinal distractor of claim 4 further comprising means for engaging at least one of the two adjacent vertebrae.
Claim 11
Dependent Claim
13 words
The spinal distractor of claim 9 wherein said engaging means is a prong.
Claim 12
Dependent Claim
14 words
The spinal distractor of claim 1 wherein said disc penetrating extension has surface irregularities.
Claim 13
Dependent Claim
12 words
The spinal distractor of claim 11 wherein said surface irregularities include ratchetings.
Claim 14
Dependent Claim
12 words
The spinal distractor of claim 11 wherein said surface irregularities include knurling.
Claim 15
Dependent Claim
26 words
The spinal distractor of claim 1 wherein said body has means for engaging an extraction device for extracting said disc penetrating extension from the disc space.
Claim 16
Dependent Claim
20 words
The spinal distractor of claim 14 wherein said engaging means includes a mating member for mating with an extraction device.
Claim 17
Dependent Claim
36 words
The spinal distractor of claim 4 wherein said disc penetrating extension comprises means for engaging said body, said body having means for engaging an extraction device for extracting said disc penetrating extension from the disc space.
Claim 18
Dependent Claim
34 words
The spinal distractor of claim 1 further comprising an impacting surface proximate the juncture of said body and said disc penetrating extension for flattening portions of the exterior surface of the two adjacent vertebrae.
Claim 19
Dependent Claim
36 words
The spinal distractor of claim 1 in combination with a guard member having an opening for providing protected access to the disc space and the adjacent vertebrae, said spinal distractor capable of passing through said opening.
Claim 20
Dependent Claim
28 words
The spinal distractor of claim 1 wherein said disc penetrating extension has a tapered front end to facilitate insertion of said disc penetrating extension into the disc space.
Claim 21
Dependent Claim
18 words
The spinal distractor of claim 1 wherein said body includes flutes along the outer surface of said body.
Claim 22
Dependent Claim
18 words
The spinal distractor of claim 1 in combination with a trephine configured for passage over said spinal distractor.
Claim 23
Dependent Claim
150 words
A guard for use in performing surgery across a disc space between two adjacent vertebrae, said guard comprising an elongated body having a proximal end and an opposite distal end for placement against the adjacent vertebrae said guard having a first passage through said elongated body for providing protected access to the disc space and the adjacent vertebrae for forming therein a first bore having a radius, and a second passage through said elongated body for providing protected access to the disc space and the adjacent vertebrae for forming therein a second bore having a radius, each of said first and second passages having a central longitudinal axis, the longitudinal axes being spaced from each other greater than the sum of the radius of the first bore and the radius of the second bore, said first and second passages being configured to prevent the first and second bores from overlapping.
Claim 24
Dependent Claim
150 words
A guard for use in performing surgery across a disc space between two adjacent vertebrae, said guard comprising an elongated body having a proximal end and an opposite distal end for placement against the adjacent vertebrae said guard having a first passage through said elongated body for providing protected access to the disc space and the adjacent vertebrae for forming therein a first bore having a radius, and a second passage through said elongated body for providing protected access to the disc space and the adjacent vertebrae for forming therein a second bore having a radius, each of said first and second passages having a central longitudinal axis, the longitudinal axes being spaced from each other greater than the sum of the radius of the first bore and the radius of the second bore, said first and second passages being configured to prevent the first and second bores from overlapping.
Claim 25
Dependent Claim
14 words
The apparatus of claim 22 further comprising means for penetrating the two adjacent vertebrae.
Claim 26
Dependent Claim
18 words
The apparatus of claim 23 wherein said penetrating means includes prongs for engaging each of the adjacent vertebrae.
Claim 27
Dependent Claim
18 words
The apparatus of claim 23 wherein said penetrating means includes teeth for insertion into the two adjacent vertebrae.
Claim 28
Dependent Claim
19 words
The apparatus of claim 23 wherein said penetrating means is located at the distal end of said guard member.
Claim 29
Dependent Claim
10 words
The apparatus of claim 23 further comprising a foot plate.
Claim 30
Dependent Claim
12 words
The apparatus of claim 22 further comprising means for penetrating the spine.
Claim 31
Dependent Claim
16 words
The apparatus of claim 28 wherein said penetrating means includes teeth for insertion into the spine.
Claim 32
Dependent Claim
19 words
The apparatus of claim 28 wherein said penetrating means includes at least one prong for insertion into the spine.
Claim 33
Dependent Claim
18 words
The apparatus of claim 28 wherein said penetrating means is located at the distal end of said guard.
Claim 34
Dependent Claim
10 words
The apparatus of claim 28 further comprising a foot plate.
Claim 35
Dependent Claim
17 words
The apparatus of claim 22 wherein said first and second passages are spaced apart from each other.
Claim 36
Dependent Claim
19 words
The apparatus of claim 22 wherein said first and second passages are parallel to each other along their length.
Claim 37
Dependent Claim
20 words
The apparatus of claim 22 wherein said first and second passages converge along at least a portion of their length.
Claim 38
Dependent Claim
16 words
The apparatus of claim 22 wherein said first and second passages are separated from each other.
Claim 39
Independent Claim
120 words
A device for removing an instrument inserted at least in part into a human spine, the instrument having a body with a central axis and a disc penetrating extension extending from the body for insertion into a disc space between two adjacent vertebrae, said removing device comprising: a shaft having an outer surface and a central axis adapted to be oriented parallel to the central axis of the body of the instrument, said shaft terminating at an end having a configuration for removable engagement to the body of the instrument; and a mass slideably engaging said outer surface of said shaft for providing linear movement of said removing device and instrument when said removing device is engaged to the instrument.
Claim 40
Independent Claim
120 words
A device for removing an instrument inserted at least in part into a human spine, the instrument having a body with a central axis and a disc penetrating extension extending from the body for insertion into a disc space between two adjacent vertebrae, said removing device comprising: a shaft having an outer surface and a central axis adapted to be oriented parallel to the central axis of the body of the instrument, said shaft terminating at an end having a configuration for removable engagement to the body of the instrument; and a mass slideably engaging said outer surface of said shaft for providing linear movement of said removing device and instrument when said removing device is engaged to the instrument.
Claim 41
Dependent Claim
35 words
The removing device of claim 37 wherein the central axis of said shaft is adapted to be oriented coaxial with the central axis of the instrument when said removing device is engaged to the instrument.
Claim 42
Dependent Claim
19 words
The removing device of claim 37 wherein said end of said shaft is configured to engage a spinal distractor.
Claim 43
Dependent Claim
20 words
The removing device of claim 37 wherein said shaft has an engagement end configured for complementary engagement to the instrument.
Claim 44
Dependent Claim
24 words
The removing device of claim 37 further comprising a detent at said end for preventing inadvertent dissociation of said removing device from said instrument.
Claim 45
Dependent Claim
95 words
A combined distractor and bone removal device for use in performing spinal surgery for positioning two adjacent vertebrae in selected relationship to each other and forming an opening in the two adjacent vertebrae, said device comprising: a cutting portion for removing bone; and a disc penetrating extension extending from said cutting portion for insertion into the disc space between the two adjacent vertebrae and for bearing against adjacent endplates of the two adjacent vertebrae, said disc penetrating extension oriented to said cutting portion so as to advance into the spine ahead of said cutting portion.
Claim 46
Dependent Claim
95 words
A combined distractor and bone removal device for use in performing spinal surgery for positioning two adjacent vertebrae in selected relationship to each other and forming an opening in the two adjacent vertebrae, said device comprising: a cutting portion for removing bone; and a disc penetrating extension extending from said cutting portion for insertion into the disc space between the two adjacent vertebrae and for bearing against adjacent endplates of the two adjacent vertebrae, said disc penetrating extension oriented to said cutting portion so as to advance into the spine ahead of said cutting portion.
Claim 47
Dependent Claim
21 words
The device of claim 42 wherein said disc penetrating extension is adapted to be self-centering when inserted into the disc space.
Claim 48
Dependent Claim
15 words
The device of claim 42 wherein said disc penetrating extension is a forward projecting nipple.
Claim 49
Dependent Claim
19 words
The device of claim 42 wherein said disc penetrating extension is bullet-shaped to facilitate insertion into the disc space.
Claim 50
Dependent Claim
12 words
The device of claim 42 wherein said cutting portion is a drill.
Claim 51
Dependent Claim
97 words
Apparatus for use in spinal surgery for cutting bone, said apparatus comprising a shaft having a longitudinal central axis terminating in a cutting portion, said cutting portion extending from said shaft to form a sharp tip perpendicular to the longitudinal central axis of said shaft, said sharp tip adapted to make radial cuts in a plane perpendicular to the longitudinal central axis of said shaft; and a handle attached to said shaft, said handle having a central longitudinal axis, the longitudinal central axis of said shaft being parallel and off-center from the central axis of said handle.
Claim 52
Dependent Claim
97 words
Apparatus for use in spinal surgery for cutting bone, said apparatus comprising a shaft having a longitudinal central axis terminating in a cutting portion, said cutting portion extending from said shaft to form a sharp tip perpendicular to the longitudinal central axis of said shaft, said sharp tip adapted to make radial cuts in a plane perpendicular to the longitudinal central axis of said shaft; and a handle attached to said shaft, said handle having a central longitudinal axis, the longitudinal central axis of said shaft being parallel and off-center from the central axis of said handle.
Claim 53
Dependent Claim
49 words
Apparatus for loading a spinal implant with fusion promoting material, said apparatus comprising: a fusion material holder; an implant holder for holding the implant; and a press for loading the fusion promoting material into the spinal implant, said press having a plunger for passing through said fusion material holder.
Claim 54
Dependent Claim
49 words
Apparatus for loading a spinal implant with fusion promoting material, said apparatus comprising: a fusion material holder; an implant holder for holding the implant; and a press for loading the fusion promoting material into the spinal implant, said press having a plunger for passing through said fusion material holder.
Claim 55
Dependent Claim
21 words
The apparatus of claim 48 wherein said fusion material holder is a trephine having a passage through which said plunger passes.
Claim 56
Dependent Claim
13 words
The apparatus of claim 48 wherein said holder is adapted to hold bone.
Claim 57
Dependent Claim
31 words
The apparatus of claim 48 wherein the implant has a hollow portion and said press generates sufficient force to press a core of bone into the hollow portion of the implant.
Claim 58
Dependent Claim
34 words
The apparatus of claim 51 wherein the implant has a plurality of openings in communication with said hollow portion and said press generates sufficient force to extrude the bone through said plurality of openings.
Claim 59
Dependent Claim
19 words
The apparatus of claim 48 wherein said plunger is adapted to compressively load said implant with fusion promoting material.
Claim 60
Dependent Claim
13 words
The apparatus of claim 48 wherein said implant holder cooperatively engages the implant.
Claim 61
Dependent Claim
98 words
A bone removal device for use in performing spinal surgery for forming an opening in the spine, said bone removal device comprising a shaft having a longitudinal axis and terminating in a cutting end for removing bone, said cutting end being perpendicular to the longitudinal axis and having a center which does not extend further than the rest of said cutting end, said shaft having a proximal end opposite said cutting end, said cutting end and said shaft having flutes for guiding debris generated during operation of said bone removal device toward said proximal end of said shaft.
Claim 62
Dependent Claim
98 words
A bone removal device for use in performing spinal surgery for forming an opening in the spine, said bone removal device comprising a shaft having a longitudinal axis and terminating in a cutting end for removing bone, said cutting end being perpendicular to the longitudinal axis and having a center which does not extend further than the rest of said cutting end, said shaft having a proximal end opposite said cutting end, said cutting end and said shaft having flutes for guiding debris generated during operation of said bone removal device toward said proximal end of said shaft.
Claim 63
Dependent Claim
12 words
The bone removal device of claim 55 wherein said center is indented.
Claim 64
Dependent Claim
29 words
The bone removal device of claim 55 wherein further comprising a proximal end opposite said cutting end, said proximal end being configured for removable engagement to a driving mechanism.
Claim 65
Dependent Claim
20 words
The bone removal device of claim 55 further comprising means for limiting penetration of said cutting end into the spine.
Claim 66
Dependent Claim
14 words
The bone removal device of claim 58 wherein said limiting means is lockably adjustable.
Claim 67
Dependent Claim
17 words
The bone removal device of claim 55 wherein said cutting end has a plurality of cutting surfaces.
Claim 68
Dependent Claim
16 words
The bone removal device of claim 55 wherein said bone removal device is an end mill.
Claim 69
Dependent Claim
15 words
The bone removal device of claim 55 wherein said bone removal device is a drill.
Claim 70
Dependent Claim
15 words
The bone removal device of claim 5 wherein said bone removal device is a reamer.
Claim 71
Dependent Claim
54 words
An interbody distractor comprising a body portion and a disc penetrating extension therefrom, said extension adapted to urge the adjacent vertebral bodies apart and align the vertebral bodies relative to each other, said extension having a width and a height through a plane perpendicular to said width, said height being greater than said width.
Claim 72
Dependent Claim
54 words
An interbody distractor comprising a body portion and a disc penetrating extension therefrom, said extension adapted to urge the adjacent vertebral bodies apart and align the vertebral bodies relative to each other, said extension having a width and a height through a plane perpendicular to said width, said height being greater than said width.
Claim 73
Dependent Claim
99 words
A spinal distractor for use in spinal surgery for positioning two adjacent vertebrae in selected relationship to each other, said spinal distractor comprising: a body; a disc penetrating extension extending from said body for insertion into the disc space between the two adjacent vertebrae and for bearing against adjacent endplates of the two adjacent vertebrae, said disc penetrating extension having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates; and means for limiting the penetration of said disc penetrating extension into the disc space.
Claim 74
Dependent Claim
99 words
A spinal distractor for use in spinal surgery for positioning two adjacent vertebrae in selected relationship to each other, said spinal distractor comprising: a body; a disc penetrating extension extending from said body for insertion into the disc space between the two adjacent vertebrae and for bearing against adjacent endplates of the two adjacent vertebrae, said disc penetrating extension having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates; and means for limiting the penetration of said disc penetrating extension into the disc space.
Claim 75
Dependent Claim
36 words
The spinal distractor of claim 65, wherein said limiting means comprises a shoulder on said body at the juncture of said disc penetrating extension and said body for preventing said body from entering the disc space.
Claim 76
Dependent Claim
14 words
The spinal distractor of claim 65, wherein said disc penetrating extension has surface irregularities.
Claim 77
Dependent Claim
12 words
The spinal distractor of claim 67, wherein said surface irregularities include ratchetings.
Claim 78
Dependent Claim
12 words
The spinal distractor of claim 67, wherein said surface irregularities include knurling.
Claim 79
Dependent Claim
34 words
The spinal distractor of claim 65, further comprising an impacting surface proximate the juncture of said body and said disc penetrating extension for flattening portions of the exterior surface of the two adjacent vertebrae.
Claim 80
Dependent Claim
28 words
The spinal distractor of claim 65, wherein said disc penetrating extension has a tapered front end to facilitate insertion of said disc penetrating extension into the disc space.
Claim 81
Dependent Claim
111 words
A spinal distractor for use in spinal surgery for positioning two adjacent vertebrae in selected relationship to each other, said spinal distractor comprising: a body; a disc penetrating extension extending from said body for insertion into the disc space between the two adjacent vertebrae and for bearing against adjacent endplates of the two adjacent vertebrae, said disc penetrating extension having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates, said disc penetrating extension being removably attached to said body; and means for limiting the depth of insertion of said disc penetrating extension into the disc space.
Claim 82
Dependent Claim
111 words
A spinal distractor for use in spinal surgery for positioning two adjacent vertebrae in selected relationship to each other, said spinal distractor comprising: a body; a disc penetrating extension extending from said body for insertion into the disc space between the two adjacent vertebrae and for bearing against adjacent endplates of the two adjacent vertebrae, said disc penetrating extension having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates, said disc penetrating extension being removably attached to said body; and means for limiting the depth of insertion of said disc penetrating extension into the disc space.
Claim 83
Dependent Claim
30 words
The spinal distractor of claim 72, wherein said limiting means comprises a head associated with said disc penetrating extension, said head being dimensioned to prevent entry into the disc space.
Claim 84
Dependent Claim
26 words
The spinal distractor of claims 73, wherein said head has a low profile so as to minimize protrusion of said head from the two adjacent vertebrae.
Claim 85
Dependent Claim
36 words
The spinal distractor of claim 72, wherein said limiting means comprises a shoulder on said body at the juncture of said disc penetrating extension and said body for preventing said body from entering the disc space.
Claim 86
Dependent Claim
25 words
The spinal distractor of claim 72, wherein said disc penetrating extension includes a head proximate the juncture of said disc penetrating extension and said body.
Claim 87
Dependent Claim
19 words
The spinal distractor of claim 72, further comprising means for engaging at least one of the two adjacent vertebrae.
Claim 88
Dependent Claim
13 words
The spinal distractor of claim 77, wherein said engaging means is a prong.
Claim 89
Dependent Claim
14 words
The spinal distractor of claim 72, wherein said disc penetrating extension has surface irregularities.
Claim 90
Dependent Claim
12 words
The spinal distractor of claim 79, wherein said surface irregularities include ratchetings.
Claim 91
Dependent Claim
12 words
The spinal distractor of claim 79, wherein said surface irregularities include knurling.
Claim 92
Dependent Claim
26 words
The spinal distractor of claim 72, wherein said body has means for engaging an extraction device for extracting said disc penetrating extension from the disc space.
Claim 93
Dependent Claim
20 words
The spinal distractor of claim 82, wherein said engaging means includes a mating member for mating with an extraction device.
Claim 94
Dependent Claim
36 words
The spinal distractor of claim 72, wherein said disc penetrating extension comprises means for engaging said body, said body having means for engaging an extraction device for extracting said disc penetrating extension from the disc space.
Claim 95
Dependent Claim
34 words
The spinal distractor of claim 72, further comprising an impacting surface proximate the juncture of said body and said disc penetrating extension for flattening portions of the exterior surface of the two adjacent vertebrae.
Claim 96
Dependent Claim
28 words
The spinal distractor of claim 72, wherein said disc penetrating extension has a tapered front end to facilitate insertion of said disc penetrating extension into the disc space.
Claim 97
Dependent Claim
106 words
A spinal distractor for use in spinal surgery for positioning two adjacent vertebrae in selected relationship to each other, said spinal distractor comprising: a body; a disc penetrating extension extending from said body for insertion into the disc space between the two adjacent vertebrae and for bearing against adjacent endplates of the two adjacent vertebrae, said disc penetrating extension having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates, said disc penetrating extension being removably attached to said body; and means for engaging at least one of the two adjacent vertebrae.
Claim 98
Dependent Claim
106 words
A spinal distractor for use in spinal surgery for positioning two adjacent vertebrae in selected relationship to each other, said spinal distractor comprising: a body; a disc penetrating extension extending from said body for insertion into the disc space between the two adjacent vertebrae and for bearing against adjacent endplates of the two adjacent vertebrae, said disc penetrating extension having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates, said disc penetrating extension being removably attached to said body; and means for engaging at least one of the two adjacent vertebrae.
Claim 99
Dependent Claim
13 words
The spinal distractor of claim 87, wherein said engaging means is a prong.
Claim 100
Dependent Claim
22 words
The spinal distractor of claim 87, further comprising means for limiting the penetration of said disc penetrating extension into the disc space.
Claim 101
Dependent Claim
36 words
The spinal distractor of claim 89, wherein said limiting means comprises a shoulder on said body at the juncture of said disc penetrating extension and said body for preventing said body from entering the disc space.
Claim 102
Dependent Claim
25 words
The spinal distractor of claim 87, wherein said disc penetrating extension includes a head proximate the juncture of said disc penetrating extension and said body.
Claim 103
Dependent Claim
27 words
The spinal distractor of claim 87, further comprising a head associated with said disc penetrating extension, said head being dimensioned to prevent entry into the disc space.
Claim 104
Dependent Claim
26 words
The spinal distractor of claims 92, wherein said head has a low profile so as to minimize protrusion of said head from the two adjacent vertebrae.
Claim 105
Dependent Claim
14 words
The spinal distractor of claim 87, wherein said disc penetrating extension has surface irregularities.
Claim 106
Dependent Claim
12 words
The spinal distractor of claim 94, wherein said surface irregularities include ratchetings.
Claim 107
Dependent Claim
12 words
The spinal distractor of claim 94, wherein said surface irregularities include knurling.
Claim 108
Dependent Claim
26 words
The spinal distractor of claim 87, wherein said body has means for engaging an extraction device for extracting said disc penetrating extension from the disc space.
Claim 109
Dependent Claim
20 words
The spinal distractor of claim 97, wherein said engaging means includes a mating member for mating with an extraction device.
Claim 110
Dependent Claim
36 words
The spinal distractor of claim 87, wherein said disc penetrating extension comprises means for engaging said body, said body having means for engaging an extraction device for extracting said disc penetrating extension from the disc space.
Claim 111
Dependent Claim
34 words
The spinal distractor of claim 87, further comprising an impacting surface proximate the juncture of said body and said disc penetrating extension for flattening portions of the exterior surface of the two adjacent vertebrae.
Claim 112
Dependent Claim
36 words
The spinal distractor of claim 87, in combination with a guard member having an opening for providing protected access to the disc space and the adjacent vertebrae, said spinal distractor capable of passing through said opening.
Claim 113
Dependent Claim
28 words
The spinal distractor of claim 87, wherein said disc penetrating extension has a tapered front end to facilitate insertion of said disc penetrating extension into the disc space.
Claim 114
Dependent Claim
18 words
The spinal distractor of claim 87, wherein said body includes flutes along the outer surface of said body.
Claim 115
Dependent Claim
18 words
The spinal distractor of claim 87, in combination with a trephine configured for passage over said spinal distractor.
Claim 116
Dependent Claim
104 words
A spinal distractor for use in spinal surgery for positioning two adjacent vertebrae in selected relationship to each other, said spinal distractor comprising: a body; and a disc penetrating extension extending from said body for insertion into the disc space between the two adjacent vertebrae and for bearing against adjacent endplates of the two adjacent vertebrae, said disc penetrating extension having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates, said body having means for engaging an extraction device for extracting said disc penetrating extension from the disc space.
Claim 117
Dependent Claim
104 words
A spinal distractor for use in spinal surgery for positioning two adjacent vertebrae in selected relationship to each other, said spinal distractor comprising: a body; and a disc penetrating extension extending from said body for insertion into the disc space between the two adjacent vertebrae and for bearing against adjacent endplates of the two adjacent vertebrae, said disc penetrating extension having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates, said body having means for engaging an extraction device for extracting said disc penetrating extension from the disc space.
Claim 118
Dependent Claim
20 words
The spinal distractor of claim 105, wherein said engaging means includes a mating member for mating with an extraction device.
Claim 119
Dependent Claim
22 words
The spinal distractor of claim 105, further comprising means for limiting the penetration of said disc penetrating extension into the disc space.
Claim 120
Dependent Claim
36 words
The spinal distractor of claim 107, wherein said limiting means comprises a shoulder on said body at the juncture of said disc penetrating extension and said body for preventing said body from entering the disc space.
Claim 121
Dependent Claim
17 words
The spinal distractor of claim 105, wherein said body is removably attached to said disc penetrating extension.
Claim 122
Dependent Claim
25 words
The spinal distractor of claim 109, wherein said disc penetrating extension includes a head proximate the juncture of said disc penetrating extension and said body.
Claim 123
Dependent Claim
20 words
The spinal distractor of claim 105, further comprising a prong for engaging at least one of the two adjacent vertebrae.
Claim 124
Dependent Claim
14 words
The spinal distractor of claim 105, wherein said disc penetrating extension has surface irregularities.
Claim 125
Dependent Claim
12 words
The spinal distractor of claim 112, wherein said surface irregularities include ratchetings.
Claim 126
Dependent Claim
12 words
The spinal distractor of claim 112, wherein said surface irregularities include knurling.
Claim 127
Dependent Claim
34 words
The spinal distractor of claim 105, further comprising an impacting surface proximate the juncture of said body and said disc penetrating extension for flattening portions of the exterior surface of the two adjacent vertebrae.
Claim 128
Dependent Claim
36 words
The spinal distractor of claim 105, in combination with a guard member having an opening for providing protected access to the disc space and the adjacent vertebrae, said spinal distractor capable of passing through said opening.
Claim 129
Dependent Claim
28 words
The spinal distractor of claim 105, wherein said disc penetrating extension has a tapered front end to facilitate insertion of said disc penetrating extension into the disc space.
Claim 130
Dependent Claim
18 words
The spinal distractor of claim 105, wherein said body includes flutes along the outer surface of said body.
Claim 131
Dependent Claim
18 words
The spinal distractor of claim 105, in combination with a trephine configured for passage over said spinal distractor.
Claim 132
Dependent Claim
124 words
A spinal distractor for use in spinal surgery for positioning two adjacent vertebrae in selected relationship to each other, said spinal distractor comprising: a body; and a disc penetrating extension extending from said body for insertion into the disc space between the two adjacent vertebrae and for bearing against adjacent endplates of the two adjacent vertebrae, said disc penetrating extension having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates, said disc penetrating extension being removably attached to said body, said disc penetrating extension comprising means for engaging said body, said body having means for engaging an extraction device for extracting said disc penetrating extension from the disc space.
Claim 133
Dependent Claim
124 words
A spinal distractor for use in spinal surgery for positioning two adjacent vertebrae in selected relationship to each other, said spinal distractor comprising: a body; and a disc penetrating extension extending from said body for insertion into the disc space between the two adjacent vertebrae and for bearing against adjacent endplates of the two adjacent vertebrae, said disc penetrating extension having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates, said disc penetrating extension being removably attached to said body, said disc penetrating extension comprising means for engaging said body, said body having means for engaging an extraction device for extracting said disc penetrating extension from the disc space.
Claim 134
Dependent Claim
22 words
The spinal distractor of claim 120, further comprising means for limiting the penetration of said disc penetrating extension into the disc space.
Claim 135
Dependent Claim
36 words
The spinal distractor of claim 121, wherein said limiting means comprises a shoulder on said body at the juncture of said disc penetrating extension and said body for preventing said body from entering the disc space.
Claim 136
Dependent Claim
25 words
The spinal distractor of claim 120, wherein said disc penetrating extension includes a head proximate the juncture of said disc penetrating extension and said body.
Claim 137
Dependent Claim
30 words
The spinal distractor of claim 121, wherein said limiting means comprises a head associated with said disc penetrating extension, said head being dimensioned to prevent entry into the disc space.
Claim 138
Dependent Claim
25 words
The spinal distractor of claims 124, wherein said head has a low profile so as to minimize protrusion of said head from the two-adjacent vertebrae.
Claim 139
Dependent Claim
20 words
The spinal distractor of claim 120, further comprising a prong for engaging at least one of the two adjacent vertebrae.
Claim 140
Dependent Claim
14 words
The spinal distractor of claim 120, wherein said disc penetrating extension has surface irregularities.
Claim 141
Dependent Claim
12 words
The spinal distractor of claim 127, wherein said surface irregularities include ratchetings.
Claim 142
Dependent Claim
12 words
The spinal distractor of claim 127, wherein said surface irregularities include knurling.
Claim 143
Dependent Claim
20 words
The spinal distractor of claim 120, wherein said engaging means includes a mating member for mating with an extraction device.
Claim 144
Dependent Claim
34 words
The spinal distractor of claim 120, further comprising an impacting surface proximate the juncture of said body and said disc penetrating extension for flattening portions of the exterior surface of the two adjacent vertebrae.
Claim 145
Dependent Claim
36 words
The spinal distractor of claim 120, in combination with a guard member having an opening for providing protected access to the disc space and the adjacent vertebrae, said spinal distractor capable of passing through said opening.
Claim 146
Dependent Claim
28 words
The spinal distractor of claim 120, wherein said disc penetrating extension has a tapered front end to facilitate insertion of said disc penetrating extension into the disc space.
Claim 147
Dependent Claim
18 words
The spinal distractor of claim 120, wherein said body includes flutes along the outer surface of said body.
Claim 148
Dependent Claim
18 words
The spinal distractor of claim 120, in combination with a trephine configured for passage over said spinal distractor.
Claim 149
Independent Claim
119 words
An apparatus for use in spinal surgery for positioning two adjacent vertebrae in selected relationship to each other, said apparatus comprising: a guard member having an opening for providing protected access to the disc space and the adjacent vertebrae; and a spinal distractor comprising: a body; and a disc penetrating extension extending from said body for insertion into the disc space between the two adjacent vertebrae and for bearing against adjacent endplates of the two adjacent vertebrae, said disc penetrating extension having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates, said spinal distractor capable of passing through said opening of said guard member.
Claim 150
Independent Claim
119 words
An apparatus for use in spinal surgery for positioning two adjacent vertebrae in selected relationship to each other, said apparatus comprising: a guard member having an opening for providing protected access to the disc space and the adjacent vertebrae; and a spinal distractor comprising: a body; and a disc penetrating extension extending from said body for insertion into the disc space between the two adjacent vertebrae and for bearing against adjacent endplates of the two adjacent vertebrae, said disc penetrating extension having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates, said spinal distractor capable of passing through said opening of said guard member.
Claim 151
Dependent Claim
22 words
The spinal distractor of claim 136, further comprising means for limiting the penetration of said disc penetrating extension into the disc space.
Claim 152
Dependent Claim
36 words
The spinal distractor of claim 137, wherein said limiting means comprises a shoulder on said body at the juncture of said disc penetrating extension and said body for preventing said body from entering the disc space.
Claim 153
Dependent Claim
17 words
The spinal distractor of claim 136, wherein said body is removably attached to said disc penetrating extension.
Claim 154
Dependent Claim
25 words
The spinal distractor of claim 139, wherein said disc penetrating extension includes a head proximate the juncture of said disc penetrating extension and said body.
Claim 155
Dependent Claim
24 words
The spinal distractor of claim 139, further comprising means for limiting the depth of insertion of said disc penetrating extension into the disc space.
Claim 156
Dependent Claim
30 words
The spinal distractor of claim 141, wherein said limiting means comprises a head associated with said disc penetrating extension, said head being dimensioned to prevent entry into the disc space.
Claim 157
Dependent Claim
26 words
The spinal distractor of claims 142, wherein said head has a low profile so as to minimize protrusion of said head from the two adjacent vertebrae.
Claim 158
Dependent Claim
20 words
The spinal distractor of claim 136, further comprising a prong for engaging at least one of the two adjacent vertebrae.
Claim 159
Dependent Claim
14 words
The spinal distractor of claim 136, wherein said disc penetrating extension has surface irregularities.
Claim 160
Dependent Claim
12 words
The spinal distractor of claim 145, wherein said surface irregularities include ratchetings.
Claim 161
Dependent Claim
12 words
The spinal distractor of claim 145, wherein said surface irregularities include knurling.
Claim 162
Dependent Claim
29 words
The spinal distractor of claim 136, wherein said body has a mating member for mating with an extraction device to extract said disc penetrating extension from the disc space.
Claim 163
Dependent Claim
34 words
The spinal distractor of claim 136, further comprising an impacting surface proximate the juncture of said body and said disc penetrating extension for flattening portions of the exterior surface of the two adjacent vertebrae.
Claim 164
Dependent Claim
28 words
The spinal distractor of claim 136, wherein said disc penetrating extension has a tapered front end to facilitate insertion of said disc penetrating extension into the disc space.
Claim 165
Dependent Claim
18 words
The spinal distractor of claim 136, wherein said body includes flutes along the outer surface of said body.
Claim 166
Dependent Claim
18 words
The spinal distractor of claim 136, in combination with a trephine configured for passage over said spinal distractor.
Claim 167
Dependent Claim
94 words
A spinal distractor for use in spinal surgery for positioning two adjacent vertebrae in selected relationship to each other, said spinal distractor comprising: a body having flutes along an outer surface of said body; and a disc penetrating extension extending from said body for insertion into the disc space between the two adjacent vertebrae and for bearing against adjacent endplates of the two adjacent vertebrae, said disc penetrating extension having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates.
Claim 168
Dependent Claim
94 words
A spinal distractor for use in spinal surgery for positioning two adjacent vertebrae in selected relationship to each other, said spinal distractor comprising: a body having flutes along an outer surface of said body; and a disc penetrating extension extending from said body for insertion into the disc space between the two adjacent vertebrae and for bearing against adjacent endplates of the two adjacent vertebrae, said disc penetrating extension having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates.
Claim 169
Dependent Claim
22 words
The spinal distractor of claim 153, further comprising means for limiting the penetration of said disc penetrating extension into the disc space.
Claim 170
Dependent Claim
36 words
The spinal distractor of claim 154, wherein said limiting means comprises a shoulder on said body at the juncture of said disc penetrating extension and said body for preventing said body from entering the disc space.
Claim 171
Dependent Claim
30 words
The spinal distractor of claim 154, wherein said limiting means comprises a head associated with said disc penetrating extension, said head being dimensioned to prevent entry into the disc space.
Claim 172
Dependent Claim
26 words
The spinal distractor of claims 156, wherein said head has a low profile so as to minimize protrusion of said head from the two adjacent vertebrae.
Claim 173
Dependent Claim
14 words
The spinal distractor of claim 153, wherein said disc penetrating extension has surface irregularities.
Claim 174
Dependent Claim
12 words
The spinal distractor of claim 158, wherein said surface irregularities include ratchetings.
Claim 175
Dependent Claim
12 words
The spinal distractor of claim 158, wherein said surface irregularities include knurling.
Claim 176
Dependent Claim
29 words
The spinal distractor of claim 153, wherein said body has a mating member for mating with an extraction device for extracting said disc penetrating extension from the disc space.
Claim 177
Dependent Claim
28 words
The spinal distractor of claim 153, wherein said disc penetrating extension has a tapered front end to facilitate insertion of said disc penetrating extension into the disc space.
Claim 178
Dependent Claim
18 words
The spinal distractor of claim 153, in combination with a trephine configured for passage over said spinal distractor.
Claim 179
Independent Claim
96 words
An apparatus for use in spinal surgery for positioning two adjacent vertebrae in selected relationship to each other, said apparatus comprising: spinal distractor comprising: a body; and a disc penetrating extension extending from said body for insertion into the disc space between the two adjacent vertebrae and for bearing against adjacent endplates of the two adjacent vertebrae, said disc penetrating extension having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates; and a trephine configured for passage over said spinal distractor.
Claim 180
Independent Claim
96 words
An apparatus for use in spinal surgery for positioning two adjacent vertebrae in selected relationship to each other, said apparatus comprising: spinal distractor comprising: a body; and a disc penetrating extension extending from said body for insertion into the disc space between the two adjacent vertebrae and for bearing against adjacent endplates of the two adjacent vertebrae, said disc penetrating extension having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates; and a trephine configured for passage over said spinal distractor.
Claim 181
Dependent Claim
22 words
The spinal distractor of claim 164, further comprising means for limiting the penetration of said disc penetrating extension into the disc space.
Claim 182
Dependent Claim
36 words
The spinal distractor of claim 165, wherein said limiting means comprises a shoulder on said body at the juncture of said disc penetrating extension and said body for preventing said body from entering the disc space.
Claim 183
Dependent Claim
17 words
The spinal distractor of claim 164, wherein said body is removably attached to said disc penetrating extension.
Claim 184
Dependent Claim
25 words
The spinal distractor of claim 167, wherein said disc penetrating extension includes a head proximate the juncture of said disc penetrating extension and said body.
Claim 185
Dependent Claim
24 words
The spinal distractor of claim 167, further comprising means for limiting the depth of insertion of said disc penetrating extension into the disc space.
Claim 186
Dependent Claim
30 words
The spinal distractor of claim 169, wherein said limiting means comprises a head associated with said disc penetrating extension, said head being dimensioned to prevent entry into the disc space.
Claim 187
Dependent Claim
26 words
The spinal distractor of claims 170, wherein said head has a low profile so as to minimize protrusion of said head from the two adjacent vertebrae.
Claim 188
Dependent Claim
20 words
The spinal distractor of claim 164, further comprising a prong for engaging at least one of the two adjacent vertebrae.
Claim 189
Dependent Claim
14 words
The spinal distractor of claim 164, wherein said disc penetrating extension has surface irregularities.
Claim 190
Dependent Claim
12 words
The spinal distractor of claim 173, wherein said surface irregularities include ratchetings.
Claim 191
Dependent Claim
12 words
The spinal distractor of claim 173, wherein said surface irregularities include knurling.
Claim 192
Dependent Claim
29 words
The spinal distractor of claim 164, wherein said body has a mating member for mating with an extraction device for extracting said disc penetrating extension from the disc space.
Claim 193
Dependent Claim
34 words
The spinal distractor of claim 164, further comprising an impacting surface proximate the juncture of said body and said disc penetrating extension for flattening portions of the exterior surface of the two adjacent vertebrae.
Claim 194
Dependent Claim
28 words
The spinal distractor of claim 164, wherein said disc penetrating extension has a tapered front end to facilitate insertion of said disc penetrating extension into the disc space.
Claim 195
Dependent Claim
138 words
A spinal distractor for use in spinal surgery for temporarily positioning two adjacent vertebrae in selected relationship to restore the height of the disc space therebetween prior to inserting an implant into the distracted disc space, said spinal distractor comprising: a body; and a disc penetrating extension extending from said body and configured to distract the adjacent vertebrae upon insertion into the disc space between the two adjacent vertebrae, said disc penetrating extension adapted to bear against adjacent endplates of the two adjacent vertebrae, said disc penetrating extension having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates, said disc penetrating extension having a height no greater than the restored height of the disc space and a width no greater than the height.
Claim 196
Dependent Claim
138 words
A spinal distractor for use in spinal surgery for temporarily positioning two adjacent vertebrae in selected relationship to restore the height of the disc space therebetween prior to inserting an implant into the distracted disc space, said spinal distractor comprising: a body; and a disc penetrating extension extending from said body and configured to distract the adjacent vertebrae upon insertion into the disc space between the two adjacent vertebrae, said disc penetrating extension adapted to bear against adjacent endplates of the two adjacent vertebrae, said disc penetrating extension having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates, said disc penetrating extension having a height no greater than the restored height of the disc space and a width no greater than the height.
Claim 197
Dependent Claim
33 words
The spinal distractor of claim 179 further comprising a shoulder on said body at the juncture of said disc penetrating extension and said body for preventing said body from entering the disc space.
Claim 198
Dependent Claim
14 words
The spinal distractor of claim 179, wherein said disc penetrating extension has surface irregularities.
Claim 199
Dependent Claim
12 words
The spinal distractor of claim 181, wherein said surface irregularities include ratchetings.
Claim 200
Dependent Claim
12 words
The spinal distractor of claim 181, wherein said surface irregularities include knurling.
Claim 201
Dependent Claim
28 words
The spinal distractor of claim 179, wherein said disc penetrating extension has a tapered front end to facilitate insertion of said disc penetrating extension into the disc space.
Claim 202
Dependent Claim
27 words
The spinal distractor of claim 179 further comprising a head associated with said disc penetrating extension, said head being dimensioned to prevent entry into the disc space.
Claim 203
Dependent Claim
28 words
The spinal distractor of claim 179, wherein said body has a mating member for engaging an extraction device for extracting said disc penetrating extension from the disc space.
Claim 204
Dependent Claim
17 words
The spinal distractor of claim 179, wherein said body is removably attached to said disc penetrating extension.
Claim 205
Independent Claim
117 words
An apparatus for use in spinal surgery for positioning two adjacent vertebrae in selected relationship to restore the height of the disc space therebetween, said apparatus comprising: a guard member having an opening for providing protected access to the disc space and the adjacent vertebrae; and a distractor configured to distract the adjacent vertebrae upon insertion into the disc space between the two adjacent vertebrae, said distractor adapted to bear against adjacent endplates of the two adjacent vertebrae, said distractor having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates, said distractor capable of passing through said opening of said guard member.
Claim 206
Independent Claim
117 words
An apparatus for use in spinal surgery for positioning two adjacent vertebrae in selected relationship to restore the height of the disc space therebetween, said apparatus comprising: a guard member having an opening for providing protected access to the disc space and the adjacent vertebrae; and a distractor configured to distract the adjacent vertebrae upon insertion into the disc space between the two adjacent vertebrae, said distractor adapted to bear against adjacent endplates of the two adjacent vertebrae, said distractor having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates, said distractor capable of passing through said opening of said guard member.
Claim 207
Dependent Claim
45 words
The apparatus of claim 188, wherein said distractor includes a body, a disc penetrating extension extending from said body, an a shoulder on said body at the juncture of said disc penetrating extension and said body for preventing said body from entering the disc space.
Claim 208
Dependent Claim
13 words
The apparatus of claim 189, wherein said disc penetrating extension has surface irregularities.
Claim 209
Dependent Claim
11 words
The apparatus of claim 190, wherein said surface irregularities include ratchetings.
Claim 210
Dependent Claim
11 words
The apparatus of claim 190, wherein said surface irregularities include knurling.
Claim 211
Dependent Claim
27 words
The apparatus of claim 189, wherein said disc penetrating extension has a tapered front end to facilitate insertion of said disc penetrating extension into the disc space.
Claim 212
Dependent Claim
26 words
The apparatus of claim 189 further comprising a head associated with said disc penetrating extension, said head being dimensioned to prevent entry into the disc space.
Claim 213
Dependent Claim
27 words
The apparatus of claim 189, wherein said body has a mating member for engaging an extraction device for extracting said disc penetrating extension from the disc space.
Claim 214
Dependent Claim
16 words
The apparatus of claim 189, wherein said body is removably attached to said disc penetrating extension.
Claim 215
Independent Claim
138 words
An apparatus for use in spinal surgery for positioning two adjacent vertebrae in selected relationship to restore the height of the disc space therebetween, said apparatus comprising: a spinal implant having opposed surfaces adapted to be placed against the endplates of the adjacent vertebrae, said spinal implant having a length; and a distractor configured to distract the adjacent vertebrae upon insertion into the disc space between the two adjacent vertebrae, said distractor adapted to bear against adjacent endplates of the two adjacent vertebrae, said distractor having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates, said distractor having a height no greater than the restored height of the disc space, said distractor having a length less than the length of said spinal implant.
Claim 216
Independent Claim
138 words
An apparatus for use in spinal surgery for positioning two adjacent vertebrae in selected relationship to restore the height of the disc space therebetween, said apparatus comprising: a spinal implant having opposed surfaces adapted to be placed against the endplates of the adjacent vertebrae, said spinal implant having a length; and a distractor configured to distract the adjacent vertebrae upon insertion into the disc space between the two adjacent vertebrae, said distractor adapted to bear against adjacent endplates of the two adjacent vertebrae, said distractor having a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates, said distractor having a height no greater than the restored height of the disc space, said distractor having a length less than the length of said spinal implant.
Claim 217
Dependent Claim
45 words
The apparatus of claim 181, wherein said distractor includes a body, a disc penetrating extension extending from said body, an a shoulder on said body at the juncture of said disc penetrating extension and said body for preventing said body from entering the disc space.
Claim 218
Dependent Claim
13 words
The apparatus of claim 198, wherein said disc penetrating extension has surface irregularities.
Claim 219
Dependent Claim
11 words
The apparatus of claim 199, wherein said surface irregularities include ratchetings.
Claim 220
Dependent Claim
11 words
The apparatus of claim 199, wherein said surface irregularities include knurling.
Claim 221
Dependent Claim
27 words
The apparatus of claim 198, wherein said disc penetrating extension has a tapered front end to facilitate insertion of said disc penetrating extension into the disc space.
Claim 222
Dependent Claim
26 words
The apparatus of claim 198 further comprising a head associated with said disc penetrating extension, said head being dimensioned to prevent entry into the disc space.
Claim 223
Dependent Claim
27 words
The apparatus of claim 198, wherein said body has a mating member for engaging an extraction device for extracting said disc penetrating extension from the disc space.
Claim 224
Dependent Claim
16 words
The apparatus of claim 198, wherein said body is removably attached to said disc penetrating extension.
Claim 225
Dependent Claim
92 words
A spinal distractor for use in spinal surgery for positioning two adjacent vertebrae in selected relationship to each other, said spinal distractor comprising a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates, said first and second portions being configured for insertion into the disc space between the two adjacent vertebrae and for bearing against adjacent endplates of the two adjacent vertebrae, said distractor having means for engaging an extraction device for extracting said distractor from the disc.
Claim 226
Dependent Claim
92 words
A spinal distractor for use in spinal surgery for positioning two adjacent vertebrae in selected relationship to each other, said spinal distractor comprising a first portion for bearing against one of the adjacent endplates and a second portion for bearing against the other of the adjacent endplates, said first and second portions being configured for insertion into the disc space between the two adjacent vertebrae and for bearing against adjacent endplates of the two adjacent vertebrae, said distractor having means for engaging an extraction device for extracting said distractor from the disc.
Claim 227
Dependent Claim
12 words
The spinal distractor of claim 206, wherein said distractor has surface irregularities.
Claim 228
Dependent Claim
12 words
The spinal distractor of claim 207, wherein said surface irregularities include ratchetings.
Claim 229
Dependent Claim
12 words
The spinal distractor of claim 207, wherein said surface irregularities include knurling.
Claim 230
Dependent Claim
24 words
The spinal distractor of claim 206, wherein said distractor has a tapered front end to facilitate insertion of said distractor into the disc space.
Claim 231
Dependent Claim
25 words
The spinal distractor of claim 206 further comprising a head associated with said distractor, said head being dimensioned to prevent entry into the disc space.
Claim 232
Dependent Claim
26 words
The spinal distractor of claim 206, wherein said distractor has a mating member for engaging an extraction device for extracting said distractor from the disc space.
Claim 233
Dependent Claim
37 words
The device of claim 42, in combination with a guard member having an opening for providing protected access to the disc space and the adjacent vertebrae and for guiding said device into contact with the adjacent vertebrae.
Claim 234
Dependent Claim
35 words
The device of claim 42, wherein said cutting portion and said disc penetrating extension have cross-sectional dimensions, the cross-sectional dimension of said cutting portion being greater than the cross-sectional dimension of said disc penetrating extension.
Claim 235
Dependent Claim
25 words
The device of claim 214, wherein the cross sectional dimension of said cutting portion is greater than the restored height of the operated disc space.
Claim 236
Dependent Claim
21 words
The device of claim 42, wherein said disc penetrating extension has a length less than the depth of the disc space.
Claim 237
Dependent Claim
60 words
Apparatus for loading a spinal implant with fusion promoting material, said apparatus comprising: a spinal implant having a hollow interior and an access aperture for accessing said hollow interior; and a plunger having a portion configured to pass through said access aperture and into said hollow interior of said implant for compressively loading the fusion promoting material into said implant.
Claim 238
Dependent Claim
60 words
Apparatus for loading a spinal implant with fusion promoting material, said apparatus comprising: a spinal implant having a hollow interior and an access aperture for accessing said hollow interior; and a plunger having a portion configured to pass through said access aperture and into said hollow interior of said implant for compressively loading the fusion promoting material into said implant.
Claim 239
Dependent Claim
24 words
The apparatus of claim 217, wherein said plunger generates sufficient force to press a core of bone into the hollow interior of said implant.
Claim 240
Dependent Claim
34 words
The apparatus of claim 217, wherein said implant has a plurality of openings in communication with said hollow interior and said plunger generates sufficient force to extrude the bone through said plurality of openings.
References Cited (Backward Citations)
US31865A
Cited
US350420A
Cited
US1137585A
Cited
US2065659A
Cited
US2243718A
Cited
US2181746A
Cited
US2372622A
Cited
US2543780A
Cited
US2537070A
Cited
US2514665A
Cited
US2677369A
Cited
US2774350A
Cited
US2789558A
Cited
US2832343A
Cited
US2842131A
Cited
US2878809A
Cited
US3128768A
Cited
DE1961531U
Cited
US3298372A
Cited
US3426364A
Cited
US3486505A
Cited
US3618611A
Cited
US3604487A
Cited
US3948262A
Cited
US3605123A
Cited
US3855638A
Cited
US3720959A
Cited
US3709219A
Cited
US3750652A
Cited
US3867950A
Cited
US3867728A
Cited
US3848601A
Cited
US3888260A
Cited
US3918440A
Cited
US3915151A
Cited
US4070514A
Cited
US3905047A
Cited
US3987499A
Cited
US3942535A
Cited
DE2446039A1
Cited
US4051905A
Cited
US3916907A
Cited
US4016651A
Cited
US3952334A
Cited
FR2295729B1
Cited
US4086701A
Cited
USD257511S
Cited
US4168326A
Cited
USD245259S
Cited
US4237948A
Cited
US4027392A
Cited
US4124026A
Cited
US4177524A
Cited
US4082097A
Cited
US4059115A
Cited
US4142517A
Cited
US4206516A
Cited
US4232679A
Cited
US4232679B1
Cited
US4175555A
Cited
US4259072A
Cited
US4222128A
Cited
US4258716A
Cited
US4181457A
Cited
US4262369A
Cited
USRE31865E
Cited
US4271832A
Cited
US4423721A
Cited
US4197850A
Cited
USD260525S
Cited
US4356572A
Cited
US4333469A
Cited
US4492226A
Cited
US4328593A
Cited
US4293962A
Cited
SU1124960A1
Cited
US4289123A
Cited
US4405319A
Cited
US4484570A
Cited
GB2076657A
Cited
US4349921A
Cited
GB2082754B
Cited
US4401112A
Cited
US4309777A
Cited
DE3132520C2
Cited
US4414979A
Cited
US4507115A
Cited
EP0077159A1
Cited
US4530360A
Cited
US4501269A
Cited
US4439152A
Cited
US4535485A
Cited
US4542539A
Cited
US4547390A
Cited
US4549547A
Cited
GB2126094A
Cited
US4545374A
Cited
US4600000A
Cited
US4552200A
Cited
US4535374A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-08-01 | 2004-01-31 | 2004-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-08-01 | 2008-01-31 | 2008-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-08-01 | 2012-01-31 | 2012-08-01 | $7700.00 | Window Closed / Lapsed |