Patent US6083228A successfully refreshed from Google Patents.
US6083228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device and method for preparing a space between adjacent vertebrae to receive an insert
Assignee: Warsaw Orthopedic Inc
•
Filing: 1998-06-09
•
Granted: 2000-07-04
•
Expires: 2018-06-09
Abstract
Abstract A device and method for use in a human spine to prepare a space between adjacent vertebral bodies and into the vertebral end plates to receive an implantable insert. The device includes a handle, a shaft, and a mounting member at one end of the shaft. An abrading element is mounted on the mounting member and is coupled to a drive mechanism. The drive mechanism is operable to move the abrading element in at least one degree of freedom to create surfaces having predetermined contours in the end plates of the adjacent vertebral bodies.
Inventors
- 👤 Gary K. Michelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:05
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/16; A61B17/1662; A61B17/1671; A61B17/1659; A61B17/17; A61B17/1739; A61B17/1757; A61B17/1613; A61B17/1622; A61B17/1624; A61B17/1628; A61B2017/0046; A61B2017/00477; A61B2017/00535; A61B2017/00544; A61B2017/00681; A61B2017/00734; A61B17/02; A61B17/025; A61B2017/0256; A61B17/32; A61B2017/320004; A61B17/320016; A61B17/32002; A61B2017/320028; A61B17/320068; A61B2017/32007; A61B2017/320084; A61B90/00; A61B90/03; A61B2090/033; A61B2217/00; A61B2217/002; A61B2217/005; A61B2217/007; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61F2/442; A61F2/46; A61F2/4603; A61F2/4611
Claims Analysis
Total Claims: 173
Claim 1
Independent Claim
99 words
A device for preparing a space in the human spine to receive an insert between adjacent vertebral bodies, comprising: a handle; a shaft operably connected to said handle; a mounting member disposed at a distal end of said shaft; a drive mechanism; a power source operably connected to said drive mechanism; and an abrading element mountable on said mounting member and movable by said drive mechanism, said abrading element having at least one abrading surface selected to create a predetermined surface contour in one of the adjacent vertebral bodies as the abrading element is moved by the drive mechanism.
Claim 2
Independent Claim
99 words
A device for preparing a space in the human spine to receive an insert between adjacent vertebral bodies, comprising: a handle; a shaft operably connected to said handle; a mounting member disposed at a distal end of said shaft; a drive mechanism; a power source operably connected to said drive mechanism; and an abrading element mountable on said mounting member and movable by said drive mechanism, said abrading element having at least one abrading surface selected to create a predetermined surface contour in one of the adjacent vertebral bodies as the abrading element is moved by the drive mechanism.
Claim 3
Dependent Claim
15 words
The device of claim 1, wherein said mounting member is fixedly connected to said shaft.
Claim 4
Dependent Claim
15 words
The device of claim 1, wherein said mounting member is removably connected to said shaft.
Claim 5
Dependent Claim
29 words
The device of claim 1, wherein said mounting member includes an aperture and said abrading element includes a projection configured to fit within said aperture of said mounting member.
Claim 6
Dependent Claim
40 words
The device of claim 1, wherein said abrading surface is configured such that it is operated in a plane generally parallel to said surface contour formed in the vertebral body as the abrading element is moved by the drive mechanism.
Claim 7
Dependent Claim
26 words
The device of claim 1, wherein said mounting member includes a wall, an aperture, and a slot configured through said wall to communicate with said aperture.
Claim 8
Dependent Claim
17 words
The device of claim 1 including a mechanism that couples the abrading element to said drive mechanism.
Claim 9
Dependent Claim
68 words
The device of claim 7, wherein said coupling mechanism includes a drive rod having a proximal end and a distal end, said drive rod being adapted to be received in said shaft, said distal end of said drive rod being configured to couple to said abrading element to move said abrading element and said proximal end of said drive rod being configured to engage to said drive mechanism.
Claim 10
Dependent Claim
18 words
The device of claim 1, wherein said drive mechanism is disposed at least in part in said handle.
Claim 11
Dependent Claim
18 words
The device of claim 1, wherein said power source is disposed at least in part in said handle.
Claim 12
Dependent Claim
44 words
The device of claim 1, including a drive rod disposed within said shaft, said drive rod being rotatably driven by said drive mechanism and including a gear at its distal end, said gear being configured to mate with corresponding teeth on said abrading element.
Claim 13
Dependent Claim
61 words
The device of claim 11, wherein said abrading element includes first and second abrading surfaces, each of said abrading surfaces including teeth formed thereon to engage with said gear of said drive rod, said gear and said teeth being configured such that said two abrading surfaces are rotated in opposite directions as said drive rod is rotated by the drive mechanism.
Claim 14
Dependent Claim
26 words
The device of claim 1, wherein said abrading element is driven in one of a reciprocating, arcuate, rotary, oscillatory, and vibratory motion by said drive mechanism.
Claim 15
Dependent Claim
31 words
The device of claim 1, wherein said abrading element includes at least two abrading surfaces for simultaneously creating predetermined surface contours on the respective end plates of the adjacent vertebral bodies.
Claim 16
Dependent Claim
49 words
The device of claim 1, wherein said abrading element includes a non-abrading surface formed on a side of said abrading element opposite said abrading surface, said non-abrading surface being configured to allow a surgeon to increase the pressure of said abrading surface against one of the adjacent vertebral bodies.
Claim 17
Dependent Claim
24 words
The device of claim 1, including at least one stop member to limit the depth of travel of said abrading element into the spine.
Claim 18
Dependent Claim
27 words
The device of claim 16, wherein said stop member is adjustable so as to select the allowed depth of penetration of said abrading element into the spine.
Claim 19
Dependent Claim
45 words
The device of claim 17, wherein said stop member is configured as a sleeve surrounding a part of said shaft, said sleeve being movable a predetermined amount on said handle portion to select the permissible depth of penetration of said abrading element into the spine.
Claim 20
Dependent Claim
20 words
The device of claim 18, including means for releasably adjusting the position of said stop member relative to said shaft.
Claim 21
Dependent Claim
36 words
The device of claim 19, wherein said releasably adjusting means includes a spring biased lever, said lever having an engaging portion at one end configured to mate with a plurality of notches configured in said shaft.
Claim 22
Dependent Claim
23 words
The device of claim 1, wherein said drive mechanism is operable to move said abrading element in at least two degrees of freedom.
Claim 23
Dependent Claim
21 words
The device of claim 1, wherein said abrading element has at least a top abrading surface and a bottom abrading surface.
Claim 24
Dependent Claim
19 words
The device of claim 22, wherein said abrading element includes a leading edge configured as a bone cutting surface.
Claim 25
Dependent Claim
21 words
The device of claim 22, wherein at least one of said top and bottom surfaces of said abrading element are convex.
Claim 26
Dependent Claim
28 words
The device of claim 22, wherein at least said top and bottom surfaces of said abrading element are tapered outwardly from a front surface of said abrading element.
Claim 27
Dependent Claim
16 words
The device of claim 1, including a rechargeable battery power source for powering said drive mechanism.
Claim 28
Dependent Claim
23 words
The device of claim 1, including a suction mechanism for removing bits of debris created by said abrading surface of the abrading element.
Claim 29
Dependent Claim
17 words
The device of claim 1, including an irrigation channel for delivering irrigation fluid to the surgical site.
Claim 30
Dependent Claim
116 words
An abrading element for preparing a space between adjacent vertebral bodies to receive an insert, said abrading element having at least one abrading surface and being mountable on a device capable of moving said abrading element to cause said abrading surface to create at least one surface having a predetermined contour in the end plate of at least one of said adjacent vertebral bodies, said abrading surface having a width selected to substantially match the overall width of the insert to be received between the adjacent vertebral bodies, said abrading surface being configured and oriented such that it is generally parallel to the surface formed in the end plate of said vertebral body when in use.
Claim 31
Dependent Claim
116 words
An abrading element for preparing a space between adjacent vertebral bodies to receive an insert, said abrading element having at least one abrading surface and being mountable on a device capable of moving said abrading element to cause said abrading surface to create at least one surface having a predetermined contour in the end plate of at least one of said adjacent vertebral bodies, said abrading surface having a width selected to substantially match the overall width of the insert to be received between the adjacent vertebral bodies, said abrading surface being configured and oriented such that it is generally parallel to the surface formed in the end plate of said vertebral body when in use.
Claim 32
Dependent Claim
17 words
The abrading element of claim 29, wherein said abrading element has a top surface and bottom surface.
Claim 33
Dependent Claim
27 words
The abrading element of claim 30, wherein at least one of said top and bottom surfaces of said abrading element are roughened to provide said abrading surface.
Claim 34
Dependent Claim
30 words
The abrading element of claim 29, wherein said abrading element has a leading edge configured to cut into the vertebral body as the abrading element is inserted into the spine.
Claim 35
Dependent Claim
22 words
The abrading element of claim 30, wherein at least one of said top and bottom surfaces of said abrading element are convex.
Claim 36
Dependent Claim
31 words
The abrading element of claim 30, wherein at least one of said top and bottom surfaces of said abrading element are tapered outwardly from said front surface of said abrading element.
Claim 37
Independent Claim
154 words
A device for preparing a space in a human spine across a disc space and into the end plates of adjacent vertebral bodies to receive an interbody spinal insert, comprising: a handle; a shaft operably connected to said handle; a mounting member disposed at a distal end of said shaft; a drive mechanism; a power source for powering said drive mechanism; an abrading element mountable on said mounting member; and a coupling mechanism for connecting and imparting motion from said drive mechanism to said abrading element, said abrading element having at least one broad abrading surface selected to remove bone from and create a predetermined surface contour in at least one of the end plates of the adjacent vertebral bodies as said abrading element is moved by the drive mechanism, said abrading surface being configured to substantially match in width and contour a surface of the interbody spinal insert and the predetermined surface contour.
Claim 38
Independent Claim
154 words
A device for preparing a space in a human spine across a disc space and into the end plates of adjacent vertebral bodies to receive an interbody spinal insert, comprising: a handle; a shaft operably connected to said handle; a mounting member disposed at a distal end of said shaft; a drive mechanism; a power source for powering said drive mechanism; an abrading element mountable on said mounting member; and a coupling mechanism for connecting and imparting motion from said drive mechanism to said abrading element, said abrading element having at least one broad abrading surface selected to remove bone from and create a predetermined surface contour in at least one of the end plates of the adjacent vertebral bodies as said abrading element is moved by the drive mechanism, said abrading surface being configured to substantially match in width and contour a surface of the interbody spinal insert and the predetermined surface contour.
Claim 39
Dependent Claim
49 words
The device of claim 35, wherein said drive mechanism moves said abrading element in a plane generally parallel to the predetermined surface contour to be formed in the vertebral body, and said movement of said abrading element is selected from the group consisting of rotary, oscillatory, vibratory, and reciprocatory.
Claim 40
Independent Claim
153 words
A device for preparing a space to receive an interbody insert within and between the adjacent surfaces of vertebral bodies disposed adjacent a disc space, comprising: a handle, said handle containing at least a portion of a drive mechanism; a shaft operably connected to and extending from said handle; a mounting element positioned at a distal end of said shaft; and an abrading element disposed on said mounting element and operably connected to said drive mechanism to be driven thereby, said abrading element having a surface and said surface having a width substantially the same as the width of the insert to be implanted, said surface having a configuration adapted to remove bone from said vertebral bodies to prepare said vertebral bodies to receive said insert, said surface of said abrading element also being configured to be generally parallel to a receiving surface that is formed on said vertebral body by said device.
Claim 41
Independent Claim
153 words
A device for preparing a space to receive an interbody insert within and between the adjacent surfaces of vertebral bodies disposed adjacent a disc space, comprising: a handle, said handle containing at least a portion of a drive mechanism; a shaft operably connected to and extending from said handle; a mounting element positioned at a distal end of said shaft; and an abrading element disposed on said mounting element and operably connected to said drive mechanism to be driven thereby, said abrading element having a surface and said surface having a width substantially the same as the width of the insert to be implanted, said surface having a configuration adapted to remove bone from said vertebral bodies to prepare said vertebral bodies to receive said insert, said surface of said abrading element also being configured to be generally parallel to a receiving surface that is formed on said vertebral body by said device.
Claim 42
Dependent Claim
18 words
The device of claim 37, wherein said abrading element includes first and second outwardly facing opposed abrading surfaces.
Claim 43
Dependent Claim
25 words
The device of claim 37, wherein said device includes a stop mechanism for limiting the depth of insertion of the device into the disc space.
Claim 44
Dependent Claim
31 words
The device of claim 37, wherein said abrading surface has a width, said width substantially matches the width of the nucleus pulposus of a disc space in which it is inserted.
Claim 45
Dependent Claim
12 words
The device of claim 37, wherein said abrading surface is substantially planar.
Claim 46
Dependent Claim
13 words
The device of claim 37, wherein said abrading surface has a convex configuration.
Claim 47
Dependent Claim
30 words
The device of claim 37, wherein said abrading element includes outwardly facing first and second abrading surfaces, and said first and second abrading surfaces are inclined relative to one another.
Claim 48
Dependent Claim
19 words
The device of claim 38, wherein said two outwardly facing, opposed abrading surfaces are substantially parallel to one another.
Claim 49
Dependent Claim
41 words
The device of claim 37, wherein said drive mechanism is adapted to produce a rotary movement of said abrading element about an axis generally perpendicular to a longitudinal axis of said shaft and a general plane of the vertebral end plate.
Claim 50
Dependent Claim
20 words
The device of claim 37, wherein said drive mechanism is adapted to produce an oscillating rotation of the abrading element.
Claim 51
Dependent Claim
39 words
The device of claim 37, wherein said drive mechanism is adapted to produce an oscillating rotation of the abrading element, wherein said oscillating rotation is from 20° to 45° to either side of the longitudinal axis of said shaft.
Claim 52
Dependent Claim
20 words
The device of claim 37, wherein said drive mechanism is adapted to produce a vibratory motion of the abrading element.
Claim 53
Dependent Claim
20 words
The device of claim 37, wherein said drive mechanism is adapted to produce a reciprocating motion of the abrading element.
Claim 54
Dependent Claim
15 words
The device of claim 37, wherein said device mechanism is powered by an energy source.
Claim 55
Dependent Claim
11 words
The device of claim 50, wherein said energy source is electrical.
Claim 56
Dependent Claim
12 words
The device of claim 51, wherein said energy source is a battery.
Claim 57
Dependent Claim
18 words
The device of claim 50, wherein said energy source is disposed, at least in part, within said handle.
Claim 58
Dependent Claim
21 words
The device of claim 37, wherein said device mechanism comprises a gas driven turbine powered by a source of compressed gas.
Claim 59
Dependent Claim
33 words
The device of claim 37, wherein said mounting member has a surface opposite said surface of said abrading element for bearing against the vertebral body on the opposite side of the disc space.
Claim 60
Dependent Claim
11 words
The device of claim 55, wherein said bearing surface is arcuate.
Claim 61
Dependent Claim
11 words
The device of claim 55, wherein said bearing surface is smooth.
Claim 62
Dependent Claim
14 words
The device of claim 37, wherein said device is sterilizeable for use in surgery.
Claim 63
Dependent Claim
13 words
The device of claim 37, wherein said shaft is detachable from said handle.
Claim 64
Dependent Claim
14 words
The device of claim 37, wherein said mounting element is detachable from said shaft.
Claim 65
Dependent Claim
15 words
The device of claim 37, wherein said abrading element is detachable from said mounting element.
Claim 66
Dependent Claim
29 words
The device of claim 37, including a rotatable drive rod disposed within said shaft, said drive rod being operably connected to said drive mechanism and to said abrading element.
Claim 67
Independent Claim
196 words
A method for preparing the disc space between adjacent vertebrae of a human spine to receive an insert therebetween, said method being performed with a device having a movable abrading element with an abrading surface that has a width substantially the same as the width of the insert to be implanted between said vertebrae, said method comprising the steps of: activating the device to cause the abrading surface to move; inserting the abrading surface into the space between the adjacent vertebrae; contacting the abrading surface of the abrading element against at least one of the adjacent vertebra to remove bone from the end plate of the vertebra that lies adjacent the disc space to form a surface on that vertebra, the surface of that vertebra having a contour that substantially matches the contour of a surface of the insert to be implanted and that substantially matches the contour of said abrading surface; and moving said abrading element relative to said device in a plane generally parallel to the surface contour to be formed in the vertebral body, the step of moving being selected from the group consisting of a reciprocating, arcuate, rotary, oscillatory, and vibratory motion.
Claim 68
Independent Claim
196 words
A method for preparing the disc space between adjacent vertebrae of a human spine to receive an insert therebetween, said method being performed with a device having a movable abrading element with an abrading surface that has a width substantially the same as the width of the insert to be implanted between said vertebrae, said method comprising the steps of: activating the device to cause the abrading surface to move; inserting the abrading surface into the space between the adjacent vertebrae; contacting the abrading surface of the abrading element against at least one of the adjacent vertebra to remove bone from the end plate of the vertebra that lies adjacent the disc space to form a surface on that vertebra, the surface of that vertebra having a contour that substantially matches the contour of a surface of the insert to be implanted and that substantially matches the contour of said abrading surface; and moving said abrading element relative to said device in a plane generally parallel to the surface contour to be formed in the vertebral body, the step of moving being selected from the group consisting of a reciprocating, arcuate, rotary, oscillatory, and vibratory motion.
Claim 69
Dependent Claim
53 words
The method of claim 63, wherein said abrading element includes first and second outwardly facing, opposed abrading surfaces, each having a width substantially the same as the width of the insert, and said contacting step includes the sub-step of simultaneously contacting and abrading the opposed surfaces of the vertebrae adjacent the disc space.
Claim 70
Dependent Claim
23 words
The method of claim 64, wherein the device is not activated until after the abrading surface has been inserted into the disc space.
Claim 71
Dependent Claim
56 words
The method of claim 63, wherein said device includes a stop mechanism for limiting the depth that the abrading element can be advanced into the disc space, and said contacting step includes the sub-step of linearly advancing the abrading element into the disc space until the stop mechanism contacts at least one of the adjacent vertebrae.
Claim 72
Dependent Claim
37 words
The method of claim 63, including the steps of measuring the width of the desired space to be formed between the adjacent vertebrae, and selecting an abrading element and corresponding abrading surface that matches the measured width.
Claim 73
Dependent Claim
36 words
The method of claim 64, including the further steps of removing the abrading surface from the disc space after completing the contacting step, and then positioning an insert into the space created between the adjacent vertebrae.
Claim 74
Independent Claim
122 words
A device for preparing a space in the human spine to receive an insert between adjacent vertebral bodies, comprising: a handle; a shaft operably connected to said handle; a mounting member disposed at a distal end of said shaft; a drive mechanism; a power source operably connected to said drive mechanism; an abrading element mountable on said mounting member and movable by said drive mechanism, said abrading element having at least one abrading surface selected to create a predetermined surface contour in one of the adjacent vertebral bodies as the abrading element is moved by the drive mechanism; and a drive rod disposed within said shaft, said drive rod being rotatably driven by said drive mechanism being coupled to said abrading element.
Claim 75
Independent Claim
122 words
A device for preparing a space in the human spine to receive an insert between adjacent vertebral bodies, comprising: a handle; a shaft operably connected to said handle; a mounting member disposed at a distal end of said shaft; a drive mechanism; a power source operably connected to said drive mechanism; an abrading element mountable on said mounting member and movable by said drive mechanism, said abrading element having at least one abrading surface selected to create a predetermined surface contour in one of the adjacent vertebral bodies as the abrading element is moved by the drive mechanism; and a drive rod disposed within said shaft, said drive rod being rotatably driven by said drive mechanism being coupled to said abrading element.
Claim 76
Dependent Claim
61 words
The device of claim 69, wherein said abrading element includes first and second abrading surfaces, each of said abrading surfaces including teeth formed thereon to engage with said gear of said drive rod, said gear and said teeth being configured such that said two abrading surfaces are rotated in opposite directions as said drive rod is rotated by the drive mechanism.
Claim 77
Dependent Claim
15 words
The device of claim 69, wherein said mounting member is fixedly connected to said shaft.
Claim 78
Dependent Claim
15 words
The device of claim 69, wherein said mounting member is removably connected to said shaft.
Claim 79
Dependent Claim
29 words
The device of claim 69, wherein said mounting member includes an aperture and said abrading element includes a projection configured to fit within said aperture of said mounting member.
Claim 80
Dependent Claim
40 words
The device of claim 69, wherein said abrading surface is configured such that it is operated in a plane generally parallel to said surface contour formed in the vertebral body as the abrading element is moved by the drive mechanism.
Claim 81
Dependent Claim
26 words
The device of claim 69, wherein said mounting member includes a wall, an aperture, and a slot configured through said wall to communicate with said aperture.
Claim 82
Dependent Claim
17 words
The device of claim 69 including a mechanism that couples the abrading element to said drive mechanism.
Claim 83
Dependent Claim
68 words
The device of claim 76, wherein said coupling mechanism includes a drive rod having a proximal end and a distal end, said drive rod being adapted to be received in said shaft, said distal end of said drive rod being configured to couple to said abrading element to move said abrading element and said proximal end of said drive rod being configured to engage to said drive mechanism.
Claim 84
Dependent Claim
18 words
The device of claim 69, wherein said drive mechanism is disposed at least in part in said handle.
Claim 85
Dependent Claim
18 words
The device of claim 69, wherein said power source is disposed at least in part in said handle.
Claim 86
Dependent Claim
26 words
The device of claim 69, wherein said abrading element is driven in one of a reciprocating, arcuate, rotary, oscillatory, and vibratory motion by said drive mechanism.
Claim 87
Dependent Claim
31 words
The device of claim 69, wherein said abrading element includes at least two abrading surfaces for simultaneously creating predetermined surface contours on the respective end plates of the adjacent vertebral bodies.
Claim 88
Dependent Claim
49 words
The device of claim 69, wherein said abrading element includes a non-abrading surface formed on a side of said abrading element opposite said abrading surface, said non-abrading surface being configured to allow a surgeon to increase the pressure of said abrading surface against one of the adjacent vertebral bodies.
Claim 89
Dependent Claim
24 words
The device of claim 69, including at least one stop member to limit the depth of travel of said abrading element into the spine.
Claim 90
Dependent Claim
27 words
The device of claim 83, wherein said stop member is adjustable so as to select the allowed depth of penetration of said abrading element into the spine.
Claim 91
Dependent Claim
45 words
The device of claim 84, wherein said stop member is configured as a sleeve surrounding a part of said shaft, said sleeve being movable a predetermined amount on said handle portion to select the permissible depth of penetration of said abrading element into the spine.
Claim 92
Dependent Claim
20 words
The device of claim 85, including means for releasably adjusting the position of said stop member relative to said shaft.
Claim 93
Dependent Claim
36 words
The device of claim 86, wherein said releasably adjusting means includes a spring biased lever, said lever having an engaging portion at one end configured to mate with a plurality of notches configured in said shaft.
Claim 94
Dependent Claim
23 words
The device of claim 69, wherein said drive mechanism is operable to move said abrading element in at least two degrees of freedom.
Claim 95
Dependent Claim
21 words
The device of claim 69, wherein said abrading element has at least a top abrading surface and a bottom abrading surface.
Claim 96
Dependent Claim
19 words
The device of claim 89, wherein said abrading element includes a leading edge configured as a bone cutting surface.
Claim 97
Dependent Claim
21 words
The device of claim 89, wherein at least one of said top and bottom surfaces of said abrading element are convex.
Claim 98
Dependent Claim
28 words
The device of claim 89, wherein at least said top and bottom surfaces of said abrading element are tapered outwardly from a front surface of said abrading element.
Claim 99
Dependent Claim
16 words
The device of claim 69, including a rechargeable battery power source for powering said drive mechanism.
Claim 100
Dependent Claim
23 words
The device of claim 69, including a suction mechanism for removing bits of debris created by said abrading surface of the abrading element.
Claim 101
Dependent Claim
17 words
The device of claim 69, including an irrigation channel for delivering irrigation fluid to the surgical site.
Claim 102
Independent Claim
118 words
A device for preparing a space in the human spine to receive an insert between adjacent vertebral bodies, comprising: a handle; a shaft operably connected to said handle; a mounting member disposed at a distal end of said shaft; a drive mechanism; a power source operably connected to said drive mechanism; and an abrading element mountable on said mounting member and movable by said drive mechanism, said abrading element having at least one abrading surface selected to create a predetermined surface contour in one of the adjacent vertebral bodies as the abrading element is moved by the drive mechanism, said abrading element having a non-abrading surface formed on a side of said abrading element opposite said abrading surface.
Claim 103
Independent Claim
118 words
A device for preparing a space in the human spine to receive an insert between adjacent vertebral bodies, comprising: a handle; a shaft operably connected to said handle; a mounting member disposed at a distal end of said shaft; a drive mechanism; a power source operably connected to said drive mechanism; and an abrading element mountable on said mounting member and movable by said drive mechanism, said abrading element having at least one abrading surface selected to create a predetermined surface contour in one of the adjacent vertebral bodies as the abrading element is moved by the drive mechanism, said abrading element having a non-abrading surface formed on a side of said abrading element opposite said abrading surface.
Claim 104
Dependent Claim
15 words
The device of claim 96, wherein said mounting member is fixedly connected to said shaft.
Claim 105
Dependent Claim
15 words
The device of claim 96, wherein said mounting member is removably connected to said shaft.
Claim 106
Dependent Claim
29 words
The device of claim 96, wherein said mounting member includes an aperture and said abrading element includes a projection configured to fit within said aperture of said mounting member.
Claim 107
Dependent Claim
40 words
The device of claim 96, wherein said abrading surface is configured such that it is operated in a plane generally parallel to said surface contour formed in the vertebral body as the abrading element is moved by the drive mechanism.
Claim 108
Dependent Claim
26 words
The device of claim 96, wherein said mounting member includes a wall, an aperture, and a slot configured through said wall to communicate with said aperture.
Claim 109
Dependent Claim
17 words
The device of claim 96 including a mechanism that couples the abrading element to said drive mechanism.
Claim 110
Dependent Claim
68 words
The device of claim 102, wherein said coupling mechanism includes a drive rod having a proximal end and a distal end, said drive rod being adapted to be received in said shaft, said distal end of said drive rod being configured to couple to said abrading element to move said abrading element and said proximal end of said drive rod being configured to engage to said drive mechanism.
Claim 111
Dependent Claim
18 words
The device of claim 96, wherein said drive mechanism is disposed at least in part in said handle.
Claim 112
Dependent Claim
18 words
The device of claim 96, wherein said power source is disposed at least in part in said handle.
Claim 113
Dependent Claim
44 words
The device of claim 96, including a drive rod disposed within said shaft, said drive rod being rotatably driven by said drive mechanism and including a gear at its distal end, said gear being configured to mate with corresponding teeth on said abrading element.
Claim 114
Dependent Claim
61 words
The device of claim 106, wherein said abrading element includes first and second abrading surfaces, each of said abrading surfaces including teeth formed thereon to engage with said gear of said drive rod, said gear and said teeth being configured such that said two abrading surfaces are rotated in opposite directions as said drive rod is rotated by the drive mechanism.
Claim 115
Dependent Claim
26 words
The device of claim 96, wherein said abrading element is driven in one of a reciprocating, arcuate, rotary, oscillatory, and vibratory motion by said drive mechanism.
Claim 116
Dependent Claim
31 words
The device of claim 96, wherein said abrading element includes at least two abrading surfaces for simultaneously creating predetermined surface contours on the respective end plates of the adjacent vertebral bodies.
Claim 117
Dependent Claim
24 words
The device of claim 96, including at least one stop member to limit the depth of travel of said abrading element into the spine.
Claim 118
Dependent Claim
27 words
The device of claim 110, wherein said stop member is adjustable so as to select the allowed depth of penetration of said abrading element into the spine.
Claim 119
Dependent Claim
45 words
The device of claim 111, wherein said stop member is configured as a sleeve surrounding a part of said shaft, said sleeve being movable a predetermined amount on said handle portion to select the permissible depth of penetration of said abrading element into the spine.
Claim 120
Dependent Claim
20 words
The device of claim 112, including means for releasably adjusting the position of said stop member relative to said shaft.
Claim 121
Dependent Claim
36 words
The device of claim 113, wherein said releasably adjusting means includes a spring biased lever, said lever having an engaging portion at one end configured to mate with a plurality of notches configured in said shaft.
Claim 122
Dependent Claim
23 words
The device of claim 96, wherein said drive mechanism is operable to move said abrading element in at least two degrees of freedom.
Claim 123
Dependent Claim
21 words
The device of claim 96, wherein said abrading element has at least a top abrading surface and a bottom abrading surface.
Claim 124
Dependent Claim
19 words
The device of claim 116, wherein said abrading element includes a leading edge configured as a bone cutting surface.
Claim 125
Dependent Claim
21 words
The device of claim 116, wherein at least one of said top and bottom surfaces of said abrading element are convex.
Claim 126
Dependent Claim
28 words
The device of claim 116, wherein at least said top and bottom surfaces of said abrading element are tapered outwardly from a front surface of said abrading element.
Claim 127
Dependent Claim
16 words
The device of claim 96, including a rechargeable battery power source for powering said drive mechanism.
Claim 128
Dependent Claim
23 words
The device of claim 96, including a suction mechanism for removing bits of debris created by said abrading surface of the abrading element.
Claim 129
Dependent Claim
17 words
The device of claim 96, including an irrigation channel for delivering irrigation fluid to the surgical site.
Claim 130
Independent Claim
99 words
A device for preparing a space in the human spine to receive an insert between adjacent vertebral bodies, comprising: a handle; a shaft operably connected to said handle; a mounting member disposed at a distal end of said shaft; a drive mechanism; a power source operably connected to said drive mechanism; and an abrading element mountable on said mounting member and movable by said drive mechanism, said abrading element having at least one abrading surface selected to create a predetermined surface contour in one of the adjacent vertebral bodies as the abrading element is moved by the drive mechanism.
Claim 131
Independent Claim
99 words
A device for preparing a space in the human spine to receive an insert between adjacent vertebral bodies, comprising: a handle; a shaft operably connected to said handle; a mounting member disposed at a distal end of said shaft; a drive mechanism; a power source operably connected to said drive mechanism; and an abrading element mountable on said mounting member and movable by said drive mechanism, said abrading element having at least one abrading surface selected to create a predetermined surface contour in one of the adjacent vertebral bodies as the abrading element is moved by the drive mechanism.
Claim 132
Dependent Claim
21 words
The device of claim 123, wherein said abrading element has at least a top abrading surface and a bottom abrading surface.
Claim 133
Dependent Claim
19 words
The device of claim 124, wherein said abrading element includes a leading edge configured as a bone cutting surface.
Claim 134
Dependent Claim
15 words
The device of claim 123, wherein said mounting member is fixedly connected to said shaft.
Claim 135
Dependent Claim
15 words
The device of claim 123, wherein said mounting member is removably connected to said shaft.
Claim 136
Dependent Claim
29 words
The device of claim 123, wherein said mounting member includes an aperture and said abrading element includes a projection configured to fit within said aperture of said mounting member.
Claim 137
Dependent Claim
40 words
The device of claim 123, wherein said abrading surface is configured such that it is operated in a plane generally parallel to said surface contour formed in the vertebral body as the abrading element is moved by the drive mechanism.
Claim 138
Dependent Claim
26 words
The device of claim 123, wherein said mounting member includes a wall, an aperture, and a slot configured through said wall to communicate with said aperture.
Claim 139
Dependent Claim
17 words
The device of claim 123 including a mechanism that couples the abrading element to said drive mechanism.
Claim 140
Dependent Claim
68 words
The device of claim 131, wherein said coupling mechanism includes a drive rod having a proximal end and a distal end, said drive rod being adapted to be received in said shaft, said distal end of said drive rod being configured to couple to said abrading element to move said abrading element and said proximal end of said drive rod being configured to engage to said drive mechanism.
Claim 141
Dependent Claim
18 words
The device of claim 123, wherein said drive mechanism is disposed at least in part in said handle.
Claim 142
Dependent Claim
18 words
The device of claim 123, wherein said power source is disposed at least in part in said handle.
Claim 143
Dependent Claim
44 words
The device of claim 123, including a drive rod disposed within said shaft, said drive rod being rotatably driven by said drive mechanism and including a gear at its distal end, said gear being configured to mate with corresponding teeth on said abrading element.
Claim 144
Dependent Claim
61 words
The device of claim 135, wherein said abrading element includes first and second abrading surfaces, each of said abrading surfaces including teeth formed thereon to engage with said gear of said drive rod, said gear and said teeth being configured such that said two abrading surfaces are rotated in opposite directions as said drive rod is rotated by the drive mechanism.
Claim 145
Dependent Claim
26 words
The device of claim 123, wherein said abrading element is driven in one of a reciprocating, arcuate, rotary, osciallatory, and vibratory motion by said drive mechanism.
Claim 146
Dependent Claim
31 words
The device of claim 123, wherein said abrading element includes at least two abrading surfaces for simultaneously creating predetermined surface contours on the respective end plates of the adjacent vertebral bodies.
Claim 147
Dependent Claim
49 words
The device of claim 123, wherein said abrading element includes a non-abrading surface formed on a side of said abrading element opposite said abrading surface, said non-abrading surface being configured to allow a surgeon to increase the pressure of said abrading surface against one of the adjacent vertebral bodies.
Claim 148
Dependent Claim
24 words
The device of claim 123, including at least one stop member to limit the depth of travel of said abrading element into the spine.
Claim 149
Dependent Claim
27 words
The device of claim 140, wherein said stop member is adjustable so as to select the allowed depth of penetration of said abrading element into the spine.
Claim 150
Dependent Claim
45 words
The device of claim 141, wherein said stop member is configured as a sleeve surrounding a part of said shaft, said sleeve being movable a predetermined amount on said handle portion to select the permissible depth of penetration of said abrading element into the spine.
Claim 151
Dependent Claim
20 words
The device of claim 142, including means for releasably adjusting the position of said stop member relative to said shaft.
Claim 152
Dependent Claim
36 words
The device of claim 143, wherein said releasably adjusting means includes a spring biased lever, said lever having an engaging portion at one end configured to mate with a plurality of notches configured in said shaft.
Claim 153
Dependent Claim
23 words
The device of claim 123, wherein said drive mechanism is operable to move said abrading element in at least two degrees of freedom.
Claim 154
Dependent Claim
21 words
The device of claim 123, wherein at least one of said top and bottom surfaces of said abrading element are convex.
Claim 155
Dependent Claim
28 words
The device of claim 123, wherein at least said top and bottom surfaces of said abrading element are tapered outwardly from a front surface of said abrading element.
Claim 156
Dependent Claim
16 words
The device of claim 123, including a rechargeable battery power source for powering said drive mechanism.
Claim 157
Dependent Claim
23 words
The device of claim 123, including a suction mechanism for removing bits of debris created by said abrading surface of the abrading element.
Claim 158
Dependent Claim
17 words
The device of claim 123, including an irrigation channel for delivering irrigation fluid to the surgical site.
Claim 159
Dependent Claim
121 words
An abrading element for preparing a space between adjacent vertebral bodies to receive an insert, said abrading element having at least one abrading surface and being mountable on a device capable of moving said abrading element to cause said abrading surface to create at least one surface having a predetermined contour in the end plate of at least one of said adjacent vertebral bodies, said abrading surface having a width selected to substantially match the overall width of the insert to be received between the adjacent vertebral bodies and a perimeter that is at least in part arcuate, said abrading element having a leading edge configured to cut into the vertebral body as the abrading element is inserted into the spine.
Claim 160
Dependent Claim
121 words
An abrading element for preparing a space between adjacent vertebral bodies to receive an insert, said abrading element having at least one abrading surface and being mountable on a device capable of moving said abrading element to cause said abrading surface to create at least one surface having a predetermined contour in the end plate of at least one of said adjacent vertebral bodies, said abrading surface having a width selected to substantially match the overall width of the insert to be received between the adjacent vertebral bodies and a perimeter that is at least in part arcuate, said abrading element having a leading edge configured to cut into the vertebral body as the abrading element is inserted into the spine.
Claim 161
Dependent Claim
17 words
The abrading element of claim 151, wherein said abrading element has a top surface and bottom surface.
Claim 162
Dependent Claim
27 words
The abrading element of claim 152, wherein at least one of said top and bottom surfaces of said abrading element are roughened to provide said abrading surface.
Claim 163
Dependent Claim
22 words
The abrading element of claim 152, wherein at least one of said top and bottom surfaces of said abrading element are convex.
Claim 164
Dependent Claim
31 words
The abrading element of claim 152, wherein at least one of said top and bottom surfaces of said abrading element are tapered outwardly from said front surface of said abrading element.
Claim 165
Dependent Claim
35 words
The abrading element of claim 151, wherein said abrading surface is configured and oriented such that it is generally parallel to the surface formed in the end plate of said vertebral body when in use.
Claim 166
Independent Claim
184 words
A device for preparing a space in a human spine across a disc space and into the end plates of adjacent vertebral bodies to receive an interbody spinal insert, comprising: a handle; a shaft operably connected to said handle; a mounting member disposed at a distal end of said shaft; a drive mechanism; a power source for powering said drive mechanism; an abrading element mountable on said mounting member; and a coupling mechanism for connecting and imparting motion from said drive mechanism to said abrading element, said abrading element having at least one broad abrading surface selected to remove bone from and create a predetermined surface contour in at least one of the end plates of the adjacent vertebral bodies as said abrading element is moved by the drive mechanism in a plane generally parallel to the predetermined surface contour to be formed in the vertebral body, said movement of said abrading element being selected from the group consisting of rotary, oscillatory, vibratory, and reciprocatory, said abrading surface being configured to substantially match in width and contour a surface of said interbody spinal insert.
Claim 167
Independent Claim
184 words
A device for preparing a space in a human spine across a disc space and into the end plates of adjacent vertebral bodies to receive an interbody spinal insert, comprising: a handle; a shaft operably connected to said handle; a mounting member disposed at a distal end of said shaft; a drive mechanism; a power source for powering said drive mechanism; an abrading element mountable on said mounting member; and a coupling mechanism for connecting and imparting motion from said drive mechanism to said abrading element, said abrading element having at least one broad abrading surface selected to remove bone from and create a predetermined surface contour in at least one of the end plates of the adjacent vertebral bodies as said abrading element is moved by the drive mechanism in a plane generally parallel to the predetermined surface contour to be formed in the vertebral body, said movement of said abrading element being selected from the group consisting of rotary, oscillatory, vibratory, and reciprocatory, said abrading surface being configured to substantially match in width and contour a surface of said interbody spinal insert.
Claim 168
Dependent Claim
121 words
An abrading element for preparing a space between adjacent vertebral bodies to receive an insert, said abrading element having a top abrading surface for abrading bone and a bottom surface opposite said top surface adapted to mount on a device capable of moving said abrading element to cause said abrading surface to create at least one surface having a predetermined contour in the end plate of at least one of said adjacent vertebral bodies, said abrading surface having a width selected to substantially match the overall width of the insert to be received between the adjacent vertebral bodies, said abrading element having a leading edge configured to cut into the vertebral body as the abrading element is inserted into the spine.
Claim 169
Dependent Claim
121 words
An abrading element for preparing a space between adjacent vertebral bodies to receive an insert, said abrading element having a top abrading surface for abrading bone and a bottom surface opposite said top surface adapted to mount on a device capable of moving said abrading element to cause said abrading surface to create at least one surface having a predetermined contour in the end plate of at least one of said adjacent vertebral bodies, said abrading surface having a width selected to substantially match the overall width of the insert to be received between the adjacent vertebral bodies, said abrading element having a leading edge configured to cut into the vertebral body as the abrading element is inserted into the spine.
Claim 170
Dependent Claim
21 words
The abrading element of claim 158, wherein said top surface of said abrading element is roughened to provide said abrading surface.
Claim 171
Dependent Claim
16 words
The abrading element of claim 158, wherein said top surface of said abrading element is convex.
Claim 172
Dependent Claim
25 words
The abrading element of claim 158, wherein said top surface of said abrading element is tapered outwardly from a front surface of said abrading element.
Claim 173
Dependent Claim
35 words
The abrading element of claim 158, wherein said abrading surface is configured and oriented such that it is generally parallel to the surface formed in the end plate of said vertebral body when in use.
References Cited (Backward Citations)
US3937222A
Cited
US4842578A
Cited
US5387215A
Cited
US5853415A
Cited
US5601556A
Cited
US5904687A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-07-04 | 2004-01-03 | 2004-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-07-04 | 2008-01-03 | 2008-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-07-04 | 2012-01-03 | 2012-07-04 | $7700.00 | Window Closed / Lapsed |