Patent US5700264A successfully refreshed from Google Patents.
US5700264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for preparing a site for an interbody fusion implant
Assignee: Individual
•
Filing: 1996-07-01
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Granted: 1997-12-23
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Expires: 2016-07-01
Abstract
Abstract An instrument set 20 and method for preparing a site between adjacent bones for insertion of an implant includes an alignment probe 22 with a head end 24 and a cutter 34 which fits over the alignment probe 22. The alignment probe 22 can be appropriately positioned using imaging techniques and then given a quarter turn in order to anchor the head end 24 in the bones at the appropriate depth and with the appropriate alignment. The cutter 34 is then inserted over the alignment probe 22 in order to sever bone and tissue. After this is accomplished, the head end 24 is given another quarter turn freeing itself from the bone, and then the alignment probe 22 and the cutter 34 are removed with the tissue and bone captured therebetween.
Inventors
- 👤 James F. Zucherman
- 👤 Ken Y. Hsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:44
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/16; A61B17/1662; A61B17/1671; A61B17/1637; A61B17/17; A61B17/1739; A61B17/1757; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61F2/4455
Claims Analysis
Total Claims: 48
Claim 1
Independent Claim
173 words
An instrument set for forming a bore between adjacent spaced bones comprising: an alignment probe with a head end mounted on a post; said head end including a first arm and a second arm; said first arm having first and second lateral sides, and said second arm having third and fourth lateral sides; wherein said first lateral side of said first arm is on the same side of the head end as said third lateral side of said second arm, and said second lateral side of said first arm is on the same side of the head end as said fourth lateral side of said second arm; wherein said first lateral side is sharpened and said fourth lateral side is sharpened; a cutter which fits over said post and which has a distal cutting edge; said cutting edge describes a width; and said width is less than the combined length of said first arm and said second arm such that said first arm and said second arm provide a stop for said cutter.
Claim 2
Dependent Claim
173 words
An instrument set for forming a bore between adjacent spaced bones comprising: an alignment probe with a head end mounted on a post; said head end including a first arm and a second arm; said first arm having first and second lateral sides, and said second arm having third and fourth lateral sides; wherein said first lateral side of said first arm is on the same side of the head end as said third lateral side of said second arm, and said second lateral side of said first arm is on the same side of the head end as said fourth lateral side of said second arm; wherein said first lateral side is sharpened and said fourth lateral side is sharpened; a cutter which fits over said post and which has a distal cutting edge; said cutting edge describes a width; and said width is less than the combined length of said first arm and said second arm such that said first arm and said second arm provide a stop for said cutter.
Claim 3
Dependent Claim
18 words
The instrument set of claim 1 wherein: said cutter is cylindrical and said distal cutting edge is circular.
Claim 4
Dependent Claim
19 words
The instrument set of claim 1 including: a spacer with a tip which is adapted to distract adjacent bones.
Claim 5
Dependent Claim
50 words
The instrument set of claim 1 wherein: the adjacent spaced bones are first and second bones and the first and fourth lateral sides of the alignment probe are adapted for cutting into the first and second bones respectively order to position the alignment probe between the first and second bones.
Claim 6
Dependent Claim
149 words
An instrument set for forming a bore between adjacent spaced bones comprising: an alignment probe with a head end mounted on a post; said head end including a first arm and a second arm; said first arm having first and second lateral sides, and said second arm having third and fourth lateral sides; wherein said first lateral side of said first arm is on the same side of the head end as said third lateral side of said second arm, and said second lateral side of said first arm is on the same side of the head end as said fourth lateral side of said second arm; wherein said first lateral side is sharpened and said fourth lateral side is sharpened; a cutter which fits over said post and which has a distal cutting edge; and a sharpened edge projects forwardly from said first arm and said second arm.
Claim 7
Dependent Claim
149 words
An instrument set for forming a bore between adjacent spaced bones comprising: an alignment probe with a head end mounted on a post; said head end including a first arm and a second arm; said first arm having first and second lateral sides, and said second arm having third and fourth lateral sides; wherein said first lateral side of said first arm is on the same side of the head end as said third lateral side of said second arm, and said second lateral side of said first arm is on the same side of the head end as said fourth lateral side of said second arm; wherein said first lateral side is sharpened and said fourth lateral side is sharpened; a cutter which fits over said post and which has a distal cutting edge; and a sharpened edge projects forwardly from said first arm and said second arm.
Claim 8
Dependent Claim
131 words
An alignment probe for establishing a desired alignment between spaced bones comprising: a head end mounted on a post; said head end including a first arm and a second arm; said first arm having first and second lateral sides, and said second arm having third and fourth lateral sides; wherein said first lateral side of said first arm is on the same side of said head end as said third lateral side of said second arm, and said second lateral side of said first arm is on the same side of said head end as said fourth lateral side of said second arm; wherein said first lateral side is sharpened and said fourth lateral side is sharpened; and a sharpened edge projects forwardly from said first arm and said second arm.
Claim 9
Dependent Claim
131 words
An alignment probe for establishing a desired alignment between spaced bones comprising: a head end mounted on a post; said head end including a first arm and a second arm; said first arm having first and second lateral sides, and said second arm having third and fourth lateral sides; wherein said first lateral side of said first arm is on the same side of said head end as said third lateral side of said second arm, and said second lateral side of said first arm is on the same side of said head end as said fourth lateral side of said second arm; wherein said first lateral side is sharpened and said fourth lateral side is sharpened; and a sharpened edge projects forwardly from said first arm and said second arm.
Claim 10
Dependent Claim
13 words
The alignment probe of claim 6 wherein: said alignment probe is substantially T-shaped.
Claim 11
Dependent Claim
20 words
The alignment probe of claim 6 wherein: said first arm and said second arm are directed oppositely from each other.
Claim 12
Dependent Claim
27 words
The alignment probe of claim 6 wherein: said first arm and said second arm together describe a length of between about thirteen millimeters and about twenty-one millimeters.
Claim 13
Dependent Claim
28 words
The alignment probe of claim 6 wherein: said first arm and said second arm together describe a length of one of thirteen millimeters, seventeen millimeters, and twenty-one millimeters.
Claim 14
Independent Claim
240 words
A method for forming a bore between first and second bones comprising the steps of: selecting an alignment probe which alignment probe comprises: a head end mounted on a post; said head end including a first arm and a second arm; said first arm having first and second lateral sides, end said second arm having third and fourth lateral sides; wherein said first lateral side of said first arm is on the same side of said head end as said third lateral side of said second arm, and said second lateral side of said first arm is on the same side of said head end as said fourth lateral side of said second arm; wherein said first lateral side is sharpened and said fourth lateral side is sharpened; positioning the alignment probe with the first arm and the second arm between the two bones; twisting the alignment probe until the sharpened first lateral side of the first arm is secured in the first bone and the sharpened fourth lateral side of the second arm is secured in the second bone in order to align the alignment probe relative to the first and second bones; placing a cutter over the post, which cutter has a distal cutting edge; operating the cutter in order to cut into the first bone and the second bone in order to define a bore; and removing the alignment probe and the cutter with the cut bone.
Claim 15
Independent Claim
240 words
A method for forming a bore between first and second bones comprising the steps of: selecting an alignment probe which alignment probe comprises: a head end mounted on a post; said head end including a first arm and a second arm; said first arm having first and second lateral sides, end said second arm having third and fourth lateral sides; wherein said first lateral side of said first arm is on the same side of said head end as said third lateral side of said second arm, and said second lateral side of said first arm is on the same side of said head end as said fourth lateral side of said second arm; wherein said first lateral side is sharpened and said fourth lateral side is sharpened; positioning the alignment probe with the first arm and the second arm between the two bones; twisting the alignment probe until the sharpened first lateral side of the first arm is secured in the first bone and the sharpened fourth lateral side of the second arm is secured in the second bone in order to align the alignment probe relative to the first and second bones; placing a cutter over the post, which cutter has a distal cutting edge; operating the cutter in order to cut into the first bone and the second bone in order to define a bore; and removing the alignment probe and the cutter with the cut bone.
Claim 16
Dependent Claim
26 words
The method of claim 11 including the steps of: performing the operating step until the cutter comes into contact with the arms of the alignment probe.
Claim 17
Dependent Claim
40 words
The method of claim 11 including the step of: placing a spacer over the post of the alignment probe prior to placing the cutter over the alignment probe in order to appropriate position the cutter relative to the alignment probe.
Claim 18
Dependent Claim
35 words
The method of claim 11 including the step of: said positioning step includes aligning the post of the alignment probe relative to the first bone and the second bone prior to twisting the alignment probe.
Claim 19
Dependent Claim
40 words
The method of claim 11 including the step of: using an imaging instrument during the positioning step to align the post of the alignment probe relative to the first bone and the second bone prior to twisting the alignment probe.
Claim 20
Dependent Claim
49 words
The method of claim 11 wherein the first and second bones are first and second vertebrae with disk space located therebetween and wherein: said positioning step include positioning said first arm and said second arm of said alignment tool in the disk space between the first and second vertebrae.
Claim 21
Dependent Claim
36 words
The method of claim 16 including the step of: removing disk material from between first and second vertebrae prior to positioning the first arm and the second arm of the alignment tool in the disk space.
Claim 22
Dependent Claim
82 words
The method of claim 11 wherein said first bone is a first vertebra and said second bone is a second vertebra and a disk is located between said first vertebra and said second vertebra, and wherein said selecting step includes: selecting an alignment probe with a sharpened edge projecting forwardly from said first arm and said second arm; and using the sharpened edge to cut the disk in order to position the alignment tool between the first vertebra and the second vertebra.
Claim 23
Dependent Claim
41 words
The method of claim 11 including the steps of: placing a spacer with a tip over the alignment probe prior to placing the cutter over the alignment probe; and positioning the tip between the bones in order to distract the bones.
Claim 24
Dependent Claim
64 words
The method of claim 11 wherein: the cutter has a width and said width is less than the combined length of the first arm and said second arm such that said first arm and said second arm provide a stop for the cutter, wherein the method includes: performing the operating step until the cutter comes into contact with the arms of the adjacent probe.
Claim 25
Dependent Claim
169 words
An alignment probe instrument set for providing alignment relative to a first vertebra and a second vertebra so that a bore can be created in order to introduce an implant into the disk space between the first vertebra and the second vertebra such that the implant spans the disk space and projects into and engages the first vertebra and the second vertebra, said instrument set comprising: an alignment probe having: a. head end mounted on a post; b. said head end including an elongate member which is transverse to said post; c. said elongate member including a first arm and a second arm; d. said first arm having a first sharpened side and said second arm having a second sharpened side; a spacer with a central bore which fits over said post; a cutter with a distant cutting edge: and wherein said cutter fits over said spacer and is guided by said spacer and said alignment probe to a location relative to said first vertebra and said second vertebra.
Claim 26
Dependent Claim
169 words
An alignment probe instrument set for providing alignment relative to a first vertebra and a second vertebra so that a bore can be created in order to introduce an implant into the disk space between the first vertebra and the second vertebra such that the implant spans the disk space and projects into and engages the first vertebra and the second vertebra, said instrument set comprising: an alignment probe having: a. head end mounted on a post; b. said head end including an elongate member which is transverse to said post; c. said elongate member including a first arm and a second arm; d. said first arm having a first sharpened side and said second arm having a second sharpened side; a spacer with a central bore which fits over said post; a cutter with a distant cutting edge: and wherein said cutter fits over said spacer and is guided by said spacer and said alignment probe to a location relative to said first vertebra and said second vertebra.
Claim 27
Dependent Claim
34 words
The method of claim 11 including the step of: placing a spacer with a tip over the alignment probe in order to distract the first and second bones prior to twisting the alignment probe.
Claim 28
Dependent Claim
188 words
An alignment probe for providing alignment relative to a first vertebra and a second vertebra so that a bore can be created in order to introduce an implant into the disk space between the first vertebra and the second vertebra such that the implant spans the disk space and projects into and engages the first vertebra and the second vertebra, said alignment probe comprising: a head end mounted on a post; said head end including an elongate member which is transverse to said post; said elongate member including a first arm and a second arm; said first arm having first and second lateral sides, and said second arm having third and fourth lateral sides; said first lateral side of said first arm is on the same side of said head end as is the third lateral side of said second arm, and said second lateral side of said first arm is on the same side of the head end as the fourth lateral side of said second arm; wherein said first lateral side is sharpened and said fourth lateral side is sharpened; and said head end is Z-shaped.
Claim 29
Dependent Claim
188 words
An alignment probe for providing alignment relative to a first vertebra and a second vertebra so that a bore can be created in order to introduce an implant into the disk space between the first vertebra and the second vertebra such that the implant spans the disk space and projects into and engages the first vertebra and the second vertebra, said alignment probe comprising: a head end mounted on a post; said head end including an elongate member which is transverse to said post; said elongate member including a first arm and a second arm; said first arm having first and second lateral sides, and said second arm having third and fourth lateral sides; said first lateral side of said first arm is on the same side of said head end as is the third lateral side of said second arm, and said second lateral side of said first arm is on the same side of the head end as the fourth lateral side of said second arm; wherein said first lateral side is sharpened and said fourth lateral side is sharpened; and said head end is Z-shaped.
Claim 30
Dependent Claim
21 words
The alignment probe of claim 23 wherein: said head end has a length of about 13 millimeters to about 21 millimeters.
Claim 31
Dependent Claim
26 words
The alignment probe of claim 23 wherein: said head end has a length selected from one of about 13 millimeters, 17 millimeters, and about 21 millimeters.
Claim 32
Dependent Claim
188 words
An alignment probe for providing alignment relative to a first vertebra and a second vertebra so that a bore can be created in order to introduce an implant into the disk space between the first vertebra and the second vertebra such that the implant spans the disk space and projects into and engages the first vertebra and the second vertebra, said alignment probe comprising: a head end mounted on a post; said head end including an elongate member which is transverse to said post: said elongate member including a first arm and a second arm; said first arm having first and second lateral sides, and said second arm having third and fourth lateral sides; said first lateral side of said first arm is on the same side of said head end as is the third lateral side of said second arm, and said second lateral side of said first arm is on the same side of the head end as the fourth lateral side of said second arm; wherein said first lateral side is sharpened and said fourth lateral side is sharpened; and said head end is S-shaped.
Claim 33
Dependent Claim
188 words
An alignment probe for providing alignment relative to a first vertebra and a second vertebra so that a bore can be created in order to introduce an implant into the disk space between the first vertebra and the second vertebra such that the implant spans the disk space and projects into and engages the first vertebra and the second vertebra, said alignment probe comprising: a head end mounted on a post; said head end including an elongate member which is transverse to said post: said elongate member including a first arm and a second arm; said first arm having first and second lateral sides, and said second arm having third and fourth lateral sides; said first lateral side of said first arm is on the same side of said head end as is the third lateral side of said second arm, and said second lateral side of said first arm is on the same side of the head end as the fourth lateral side of said second arm; wherein said first lateral side is sharpened and said fourth lateral side is sharpened; and said head end is S-shaped.
Claim 34
Dependent Claim
196 words
An alignment probe for providing alignment relative to a first vertebra and a second vertebra so that a bore can be created in order to introduce an implant into the disk space between the first vertebra and the second vertebra such that the implant spans the disk space and projects into and engages the first vertebra and the second vertebra, said alignment probe comprising: a head end mounted on a post; said head end including an elongate member which is transverse to said post; said elongate member including a first arm and a second arm; said first arm having first and second lateral sides, and said second arm having third and fourth lateral sides; said first lateral side of said first arm is on the same side of said head end as is the third lateral side of said second arm, and said second lateral side of said first arm is on the same side of the head end as the fourth lateral side of said second arm; wherein said first lateral side is sharpened and said fourth lateral side is sharpened; and, a sharpened edge projecting forwardly from said first arm and said second arm.
Claim 35
Dependent Claim
196 words
An alignment probe for providing alignment relative to a first vertebra and a second vertebra so that a bore can be created in order to introduce an implant into the disk space between the first vertebra and the second vertebra such that the implant spans the disk space and projects into and engages the first vertebra and the second vertebra, said alignment probe comprising: a head end mounted on a post; said head end including an elongate member which is transverse to said post; said elongate member including a first arm and a second arm; said first arm having first and second lateral sides, and said second arm having third and fourth lateral sides; said first lateral side of said first arm is on the same side of said head end as is the third lateral side of said second arm, and said second lateral side of said first arm is on the same side of the head end as the fourth lateral side of said second arm; wherein said first lateral side is sharpened and said fourth lateral side is sharpened; and, a sharpened edge projecting forwardly from said first arm and said second arm.
Claim 36
Dependent Claim
48 words
The alignment probe of claim 27 wherein: said first lateral side of said first arm is in line with the third lateral side of said second arm, and said second lateral side of said first arm is in line with the fourth lateral side of said second arm.
Claim 37
Dependent Claim
173 words
An instrument set for forming a bore between adjacent spaced bones comprising: an alignment probe with a head end mounted on a post; said head end including a first arm and a second arm; said first arm having first and second lateral sides, and said second arm having third and fourth lateral sides; wherein said first lateral side of said first arm is on the same side of the head end as said third lateral side of said second arm, and said second lateral side of said first arm is on the same side of the head end as said fourth lateral side of said second arm; wherein said first lateral side is sharpened and said fourth lateral side is sharpened; a cutter which fits over said post and which has a distal cutting edge; a spacer with a central bore which fits over said post; and wherein said cutter fits over said spacer and is guided by said spacer and said alignment probe to a location relative to the adjacent spaced bones.
Claim 38
Dependent Claim
173 words
An instrument set for forming a bore between adjacent spaced bones comprising: an alignment probe with a head end mounted on a post; said head end including a first arm and a second arm; said first arm having first and second lateral sides, and said second arm having third and fourth lateral sides; wherein said first lateral side of said first arm is on the same side of the head end as said third lateral side of said second arm, and said second lateral side of said first arm is on the same side of the head end as said fourth lateral side of said second arm; wherein said first lateral side is sharpened and said fourth lateral side is sharpened; a cutter which fits over said post and which has a distal cutting edge; a spacer with a central bore which fits over said post; and wherein said cutter fits over said spacer and is guided by said spacer and said alignment probe to a location relative to the adjacent spaced bones.
Claim 39
Dependent Claim
20 words
The instrument set of claim 29 wherein: said spacer has a tip which is adapted to distract the adjacent bones.
Claim 40
Dependent Claim
77 words
An alignment probe for establishing a desired alignment between spaced bones comprising: a head end mounted on a post; said head end adapted to be positioned between the bones; said head end having means for penetrating the bones so that said head end can be anchored between the spaced bones; and said head end includes stop flanges which are adapted to prevent a cutter from penetrating the bone to a depth that is past said stop flanges.
Claim 41
Dependent Claim
77 words
An alignment probe for establishing a desired alignment between spaced bones comprising: a head end mounted on a post; said head end adapted to be positioned between the bones; said head end having means for penetrating the bones so that said head end can be anchored between the spaced bones; and said head end includes stop flanges which are adapted to prevent a cutter from penetrating the bone to a depth that is past said stop flanges.
Claim 42
Dependent Claim
116 words
An alignment probe for establishing a desired alignment between spaced bones comprising: a head end mounted on a post with a longitudinal axis; said head end adapted to be movable past the outwardly facing exterior surfaces of the bones and such that the head end can be positioned between the bones; said head and having an anchor device that can penetrate both of the bones substantially simultaneously when the post is twisted along the longitudinal axis so that said head end can be anchored between the spaced bones; and said head end includes at least one stop which is adapted to prevent a cutter from penetrating the bone to a length that is past said stop.
Claim 43
Dependent Claim
116 words
An alignment probe for establishing a desired alignment between spaced bones comprising: a head end mounted on a post with a longitudinal axis; said head end adapted to be movable past the outwardly facing exterior surfaces of the bones and such that the head end can be positioned between the bones; said head and having an anchor device that can penetrate both of the bones substantially simultaneously when the post is twisted along the longitudinal axis so that said head end can be anchored between the spaced bones; and said head end includes at least one stop which is adapted to prevent a cutter from penetrating the bone to a length that is past said stop.
Claim 44
Dependent Claim
64 words
The alignment probe of claim 32 wherein the bones are spaced apart first vertebra and second vertebra with a disk space located therebetween and wherein: said head end is sized so that it can fit into the disk space between the first vertebra and the second vertebra prior to being twisted in order to be anchored in the first vertebra and the second vertebra.
Claim 45
Dependent Claim
22 words
The instrument set of claim 21 wherein: said spacer has a tip which is adapted to distract the first and second vertebrae.
Claim 46
Dependent Claim
49 words
The method of claim 11 including the steps of: placing a spacer with a tip over the alignment probe prior to placing the cutter over the alignment probe; and positioning the tip between the bones in order to distract the bones prior to the step of operating the cutter.
Claim 47
Dependent Claim
190 words
An instrument set for forming a bore between adjacent spaced first and second bones comprising: an alignment probe with a head end mounted on a post; said head end having first and second arms; said first arm having a sharpened first side which is adapted for cutting into the first bone and the second arm having sharpened second side which is adapted for cutting into the second bone as the sharpened first side cuts into the first bone; wherein the action of the sharpened first side and sharpened second side in cutting into the first and second bones respectively securely positions the probe between the first and second bones and established an alignment between said first and second bones; a cutter with a distal cutting edge that is guided by the post of the alignment probe to a position adjacent to the first and second bones after the alignment probe is secured to and aligned between the first and second bones; and said first and second arms including stop flanges which prevent said cutter from penetrating the first and second bones to a depth which is past said stop flanges.
Claim 48
Dependent Claim
190 words
An instrument set for forming a bore between adjacent spaced first and second bones comprising: an alignment probe with a head end mounted on a post; said head end having first and second arms; said first arm having a sharpened first side which is adapted for cutting into the first bone and the second arm having sharpened second side which is adapted for cutting into the second bone as the sharpened first side cuts into the first bone; wherein the action of the sharpened first side and sharpened second side in cutting into the first and second bones respectively securely positions the probe between the first and second bones and established an alignment between said first and second bones; a cutter with a distal cutting edge that is guided by the post of the alignment probe to a position adjacent to the first and second bones after the alignment probe is secured to and aligned between the first and second bones; and said first and second arms including stop flanges which prevent said cutter from penetrating the first and second bones to a depth which is past said stop flanges.
References Cited (Backward Citations)
US493730A
Cited
US2537070A
Cited
US3112743A
Cited
DE1961531A1
Cited
US3848601A
Cited
US4124026A
Cited
US4059115A
Cited
EP0073177A2
Cited
DE3505567A1
Cited
US4721103A
Cited
US4599086A
Cited
US4743256A
Cited
EP0260222A2
Cited
US4878915A
Cited
US4834757A
Cited
US4714469A
Cited
US4772287A
Cited
US4904260A
Cited
US5015247A
Cited
US5505732A
Cited
US4961740A
Cited
US5026373A
Cited
US4961740B1
Cited
US5015255A
Cited
US5062845A
Cited
CA2015507A1
Cited
US5055104A
Cited
US5059193A
Cited
EP0537060A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-12-22 | 2001-06-23 | 2001-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-12-22 | 2005-06-23 | 2005-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-12-22 | 2009-06-23 | 2009-12-23 | $7700.00 | Window Closed / Lapsed |