WO2002002151B1 - Self-aligning and tapping bone joining implant - Google Patents

Self-aligning and tapping bone joining implant

Info

Publication number
WO2002002151B1
WO2002002151B1 PCT/US2001/041100 US0141100W WO0202151B1 WO 2002002151 B1 WO2002002151 B1 WO 2002002151B1 US 0141100 W US0141100 W US 0141100W WO 0202151 B1 WO0202151 B1 WO 0202151B1
Authority
WO
WIPO (PCT)
Prior art keywords
bone
adjacent
implant
leading end
bodies
Prior art date
Application number
PCT/US2001/041100
Other languages
French (fr)
Other versions
WO2002002151A2 (en
WO2002002151A3 (en
Inventor
George W Bagby
Original Assignee
George W Bagby
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by George W Bagby filed Critical George W Bagby
Priority to EP01952914A priority Critical patent/EP1326559B1/en
Priority to AU2001273621A priority patent/AU2001273621A1/en
Priority to AT01952914T priority patent/ATE465697T1/en
Priority to DE60141970T priority patent/DE60141970D1/en
Publication of WO2002002151A2 publication Critical patent/WO2002002151A2/en
Publication of WO2002002151A3 publication Critical patent/WO2002002151A3/en
Publication of WO2002002151B1 publication Critical patent/WO2002002151B1/en

Links

Classifications

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    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2/4455Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • A61F2/447Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section
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    • A61F2/30771Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30878Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
    • A61F2002/30891Plurality of protrusions
    • A61F2002/30896Plurality of protrusions perpendicular with respect to each other
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/46Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2002/4681Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor by applying mechanical shocks, e.g. by hammering
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0004Rounded shapes, e.g. with rounded corners
    • A61F2230/0006Rounded shapes, e.g. with rounded corners circular
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0017Angular shapes
    • A61F2230/0019Angular shapes rectangular
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063Three-dimensional shapes
    • A61F2230/0069Three-dimensional shapes cylindrical
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063Three-dimensional shapes
    • A61F2230/0082Three-dimensional shapes parallelepipedal
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2250/00Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0014Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
    • A61F2250/0026Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in surface structures
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S606/00Surgery
    • Y10S606/907Composed of particular material or coated

Abstract

A bone joining implant (10) includes a tubular body. The tubular body has an axially extending outer surface (66) defining an outer dimension of substantially uniform cross-section and including a smooth leading insertion portion (70) and a bone engaging trailing portion (72).

Claims

24
AMENDED CLAIMS
[received by the International Bureau on 8 April 2002 (08.04.02); original claims 1-24 replaced by amended claims 1-48 (7 pages)]
1. An intervertebral implant, comprising: a tubular body having an axially extending outer surface including a smooth leading insertion portion configured to self-align the tubular body and a bone-engaging trailing portion, the outer surface including opposed portions adapted for placement toward and adjacent each of a pair of adjacent vertebral bodies.
2. The intervertebral implant of claim 1 wherein the tubular body comprises a hollow cylinder.
3. The intervertebral implant of claim 2 wherein the trailing portion comprises at least one thread segment.
4. The intervertebral implant of claim 3 wherein the thread segment comprises a self-tapping thread.
6. The intervertebral implant of claim 2 wherein the tubular body defines a substantially constant diameter inner bore extending from an open leading end to an open trailing end.
7. The intervertebral implant of claim 6 wherein a plurality of fenestrations are provided through the tubular body extending from an outer surface adjacent living bone to an inner surface adjacent living bone to facilitate living bone growing between the inner surface and the outer surface.
8. The intervertebral implant of claim 6 wherein a tapered portion is provided along a leading end of the leading insertion portion.
11. An intervertebral wedge, comprising: a perforated fusion body having an outer surface including an insertion portion with an axially extending uniform cross-sectional dimension adjacent a leading end and a bone fixating trailing portion adjacent a trailing end, the insertion portion configured 25
to self-align the fusion body between a pair of adjacent vertebra and including an open leading end defining a bore therein sized sufficiently to receive a pair of adjacent bone projections from the vertebrae to facilitate arthrodesis therebetween.
12. The intervertebral wedge of claim 11 wherein the fusion body comprises a tubular cylinder including a plurality of fenestrations extending from the outer surface to an inner surface.
13. The intervertebral wedge of claim 11 wherein the insertion portion comprises a smooth insertion portion including a substantially smooth, cylindrical leading end portion having a plurality of fenestrations extending from the outer surface to an inner surface.
14. The intervertebral wedge of claim 11 wherein the bone fixating trailing portion comprises a cylindrical threaded end portion.
17. The intervertebral wedge of claim 11 wherein the bone fixating trailing portion comprises a self-tapping thread.
18. The intervertebral wedge of claim 11 further comprising a tapered portion provided about a leading end of the insertion portion and configured to impart distraction between a pair of vertebrae upon insertion of the fusion device between a pair of bone bodies of adjacent vertebrae.
19. A vertebral fusion implant, comprising, an elongate, axially extending fusion body including an outer surface having an insertion portion and a threaded trailing portion, the outer surface including opposed portions adapted for placement toward each of a pair of adjacent vertebral bodies, the insertion portion having an axially extending uniform cross-section, and the threaded trailing portion provided at a trailing end of the fusion body; wherein the insertion portion is configured to self-align the fusion body between bone beds of adjacent vertebrae during implantation, and the threaded trailing portion is configured to self-fixate the fusion body between the bone beds. 26
20. The vertebral fusion implant of claim 19 wherein the fusion body comprises an elongate cylinder.
21. The vertebral fusion implant of claim 20 further comprising a plurality of fenestrations provided in the elongate cylinder extending from an outer surface to an inner surface and operative to encourage arthrodesis.
22. A spinal arthrodesis device, comprising: an axially extending tubular body having a smooth, leading end insertion portion, a bone-engaging trailing end portion, and a surface, the surface including opposed portions adapted for placement toward and adjacent each of a pair of adjacent vertebral bodies and the insertion portion configured to self-align the body between the pair of adjacent vertebral bodies.
23. The spinal arthrodesis device of claim 22 wherein the surface comprises an outer surface of the tubular body including an upper opposed portion adapted to contact and invade a first vertebral body and a lower opposed portion adapted to contact and invade a second, adjacent vertebral body.
24. The spinal arthrodesis device of claim 22 further comprising a bore extending from a leading end of the tubular body and invading the body, the bore of sufficient size to receive living bone projections from each of a pair of adjacent vertebral bodies.
25. The spinal arthrodesis device of claim 24 wherein the surface comprises an inner surface provided by the bore, and wherein the opposed portions comprise opposed arcuate portions of the bore adapted for placement toward and adjacent bone projections from each of a pair of adjacent vertebral bodies.
26. The spinal arthrodesis device of claim 25 wherein the bore is configured to telescopically receive the adjacent bone projections within the tubular body.
27. An intervertebral implant, comprising: 27
a tubular body having a smooth leading end insertion portion configured to align the implant and a trailing end bone-engaging portion, the insertion portion including at least one wall providing an axially extending bore within the insertion portion and providing an open leading end and a first wall portion provided for insertion within a kerf of a first vertebral body and a second, opposed wall portion provided for insertion within a kerf of a second vertebral body.
28. The intervertebral implant of claim 27 wherein the first wall portion is configured to invade a first vertebral body and the second wall portion is configured to invade a second vertebral body by inserting the implant axially along an inter-disc space between the first and second vertebral bodies, and wherein respective bone projections of the vertebral bodies are telescopically received within the bore to facilitate arthrodesis between the adjacent vertebral bodies.
29. The intervertebral implant of claim 27 wherein the tubular body comprises a cylindrical body and the trailing end bone-engaging portion comprises at least one thread segment extending from the cylindrical body.
30. The intervertebral implant of claim 27 wherein the tubular leading end insertion portion comprises a cylindrical tube, the first wall comprises an arcuate portion of the cylindrical tube, and the second wall comprises an opposed, arcuate portion of the cylindrical tube.
31. The intervertebral implant of claim 30 wherein the bore extends completely through the body from an open leading end to an open trailing end, and the body comprises a cylindrical tube having a bore sized sufficiently to receive each of a pair of bone projections from respective adjacent vertebral bodies.
32. A spinal arthrodesis device, comprising: a tubular body configured for insertion along an axis substantially parallel with an inter-disc gap between adj acent vertebral bodies, the tubular body having a smooth leading end portion configured to align the tubular body during insertion, a bone-engaging trailing 28
end portion, a length sized to fit between the adjacent vertebral bodies, and a cross-sectional dimension sufficient to provide a bore sized to receive living bone projections from each of the adjacent vertebral bodies.
33. The spinal arthrodesis device of claim 32 wherein the tubular body has an open leading end including at least one wall configured to be received within a kerf within each of the adjacent vertebral bodies.
34. The spinal arthrodesis device of claim 32 wherein the tubular body comprises a hollow cylinder having an open leading end, defining a bore sized sufficiently to telescopically receive a bone projection from each respective vertebral body.
35. An intervertebral implant, comprising: an elongate body having a smooth leading end portion configured to self-align the elongate body between adjacent vertebral bodies, a bone-engaging trailing end portion, and opposed lateral portions each adapted for placement toward and at least partly within the respective, adjacent vertebral bodies.
36. The intervertebral implant of claim 35 wherein the elongate body comprises a tubular body having a central axis configured for insertion along an inter-disc space between the adjacent vertebral bodies.
37. The intervertebral implant of claim 36 wherein the elongate body has an open leading end sized sufficiently to receive a bone projection from each of an adjacent pair of bone bodies.
38. An intervertebral implant, comprising: an elongate body having a leading end configured to self-align the body between adjacent vertebral bodies comprising a smooth outer surface and a trailing end comprising at least one surface projection, the elongate body configured for alignment and insertion substantially along a vertebral disc space between a pair of adj acent vertebral bodies, 29
and having an open leading end communicating with a bore configured to receive a bone projection from each of the pair of adjacent vertebral bodies.
39. The intervertebral implant of claim 38 wherein the at least one surface projection comprises a thread segment.
40. A bone arthrodizing implant, comprising: a hollow elongate body having an open front face communicating with an inner bore and an outer surface with a smooth leading end configured to self-align along adjacent bone bodies and a bone-gripping trailing end, the elongate body configured for insertion along an interface between adjacent bone bodies, and the elongate body having a cross-sectional dimension and thickness sufficient to telescopically receive vascularized bone projections from each of the adjacent bone bodies.
41. The bone arthrodizing implant of claim 40 wherein the hollow elongate body comprises a cylindrical tube having at least one thread along the bone-gripping trailing end.
42. A bone implant, comprising: a body having a smooth leading portion configured to align the body between adjacent bone bodies, a bone-engaging trailing portion, and opposed lateral portions each adapted for placement toward adjacent bone bodies.
43. The bone implant of claim 42 wherein the body has a central axis along which the smooth leading portion and the bone-engaging trailing portion extend for axial insertion between a pair of adjacent bone bodies.
44. The bone implant of claim 43 wherein the elongate body extends at least in part within each of the adjacent bone bodies.
45. The bone implant of claim 43 wherein the body comprises a tubular body having an open leading end communicating with an internal bore having an axially extending 30
uniform cross-sectional dimension sized sufficiently to receive a bone projection from at least one of the adjacent bone bodies.
46. The bone implant of claim 45 wherein the bore has a dimension sized sufficiently to receive each of a pair of bone projections from respective adjacent bone bodies.
47. The bone implant of claim 43 wherein the bone-engaging trailing portion comprises a thread.
48. The bone implant of claim 43 wherein the body comprises man-made material.
PCT/US2001/041100 2000-07-01 2001-06-22 Self-aligning and tapping bone joining implant WO2002002151A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP01952914A EP1326559B1 (en) 2000-07-01 2001-06-22 Self-aligning and tapping bone joining implant
AU2001273621A AU2001273621A1 (en) 2000-07-01 2001-06-22 Self-aligning and tapping bone joining implant
AT01952914T ATE465697T1 (en) 2000-07-01 2001-06-22 A SELF-ALIGNATING AND THREAD-CUTTING IMPLANT FOR CONNECTING BONE
DE60141970T DE60141970D1 (en) 2000-07-01 2001-06-22 A SELF-ALIGNING AND THREAD-CUTTING IMPLANT FOR JOINING BONE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/609,129 2000-07-01
US09/609,129 US6447545B1 (en) 2000-07-01 2000-07-01 Self-aligning bone implant

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WO2002002151A2 WO2002002151A2 (en) 2002-01-10
WO2002002151A3 WO2002002151A3 (en) 2002-04-11
WO2002002151B1 true WO2002002151B1 (en) 2002-07-18

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PCT/US2001/041100 WO2002002151A2 (en) 2000-07-01 2001-06-22 Self-aligning and tapping bone joining implant

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US (2) US6447545B1 (en)
EP (1) EP1326559B1 (en)
AT (1) ATE465697T1 (en)
AU (1) AU2001273621A1 (en)
DE (1) DE60141970D1 (en)
WO (1) WO2002002151A2 (en)

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US20030004573A1 (en) 2003-01-02
AU2001273621A1 (en) 2002-01-14
EP1326559A2 (en) 2003-07-16
WO2002002151A2 (en) 2002-01-10
DE60141970D1 (en) 2010-06-10
EP1326559B1 (en) 2010-04-28
US6447545B1 (en) 2002-09-10
EP1326559A4 (en) 2006-08-09
WO2002002151A3 (en) 2002-04-11
ATE465697T1 (en) 2010-05-15

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