CA2329363A1 - Articulating spinal implant - Google Patents
Articulating spinal implant Download PDFInfo
- Publication number
- CA2329363A1 CA2329363A1 CA002329363A CA2329363A CA2329363A1 CA 2329363 A1 CA2329363 A1 CA 2329363A1 CA 002329363 A CA002329363 A CA 002329363A CA 2329363 A CA2329363 A CA 2329363A CA 2329363 A1 CA2329363 A1 CA 2329363A1
- Authority
- CA
- Canada
- Prior art keywords
- elements
- vertebrae
- implant
- bone
- spinal implant
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1662—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
- A61B17/1671—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the spine
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- A—HUMAN NECESSITIES
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- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/442—Intervertebral or spinal discs, e.g. resilient
- A61F2/4425—Intervertebral or spinal discs, e.g. resilient made of articulated components
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- A—HUMAN NECESSITIES
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- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/4455—Joints 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
- A61F2/446—Joints 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 having a circular or elliptical cross-section substantially parallel to the axis of the spine, e.g. cylinders or frustocones
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- A—HUMAN NECESSITIES
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- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1604—Chisels; Rongeurs; Punches; Stamps
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- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30721—Accessories
- A61F2/30724—Spacers for centering an implant in a bone cavity, e.g. in a cement-receiving cavity
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- A—HUMAN NECESSITIES
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- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
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- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
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- A—HUMAN NECESSITIES
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- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
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- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/4611—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
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- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
- A61F2/28—Bones
- A61F2002/2817—Bone stimulation by chemical reactions or by osteogenic or biological products for enhancing ossification, e.g. by bone morphogenetic or morphogenic proteins [BMP] or by transforming growth factors [TGF]
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- A—HUMAN NECESSITIES
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- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
- A61F2/28—Bones
- A61F2002/2835—Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
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- A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
- A61F2002/3006—Properties of materials and coating materials
- A61F2002/30062—(bio)absorbable, biodegradable, bioerodable, (bio)resorbable, resorptive
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- A61F2002/30108—Shapes
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- A61F2310/00389—The prosthesis being coated or covered with a particular material
- A61F2310/00395—Coating or prosthesis-covering structure made of metals or of alloys
- A61F2310/00413—Coating made of cobalt or of Co-based alloys
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00389—The prosthesis being coated or covered with a particular material
- A61F2310/00395—Coating or prosthesis-covering structure made of metals or of alloys
- A61F2310/00419—Other metals
- A61F2310/00449—Coating made of chromium or Cr-based alloys
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00389—The prosthesis being coated or covered with a particular material
- A61F2310/00592—Coating or prosthesis-covering structure made of ceramics or of ceramic-like compounds
- A61F2310/00598—Coating or prosthesis-covering structure made of compounds based on metal oxides or hydroxides
- A61F2310/00634—Coating made of zirconium oxide or hydroxides
Abstract
A spinal implant (10) for intervertebral disc replacement.
The implant is formed from two hemicylindrical elements (20, 22), each engaging one of an adjacent pair of vertebrae (12, 14). An articulating ball-and-socket joint between the two elements (20, 22) resists compression and lateral movement between the vertebra, but allows pivotal movement, thereby preserving mobility. Fusion chambers (30, 34) are provided for allowing bone ingrowth to fuse the elements to the vertebrae (12, 14). Biocompatible, bioreabsorbable struts, shims (82), fillers and/or end caps (90) are provided for temporary stabilization of the first (20) and second hernicylindrical (22) elements. Bone chips removed from the vertebrae during implantation or bone growth stimulators can be inserted into the fusion chamber (30, 34) or otherwise applied to the implant to enhance bone ingrowth.
The implant is formed from two hemicylindrical elements (20, 22), each engaging one of an adjacent pair of vertebrae (12, 14). An articulating ball-and-socket joint between the two elements (20, 22) resists compression and lateral movement between the vertebra, but allows pivotal movement, thereby preserving mobility. Fusion chambers (30, 34) are provided for allowing bone ingrowth to fuse the elements to the vertebrae (12, 14). Biocompatible, bioreabsorbable struts, shims (82), fillers and/or end caps (90) are provided for temporary stabilization of the first (20) and second hernicylindrical (22) elements. Bone chips removed from the vertebrae during implantation or bone growth stimulators can be inserted into the fusion chamber (30, 34) or otherwise applied to the implant to enhance bone ingrowth.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/065,816 US6019792A (en) | 1998-04-23 | 1998-04-23 | Articulating spinal implant |
US09/065,816 | 1998-04-23 | ||
PCT/US1999/008898 WO1999053871A1 (en) | 1998-04-23 | 1999-04-23 | Articulating spinal implant |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2329363A1 true CA2329363A1 (en) | 1999-10-28 |
CA2329363C CA2329363C (en) | 2007-12-11 |
Family
ID=22065299
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002329363A Expired - Fee Related CA2329363C (en) | 1998-04-23 | 1999-04-23 | Articulating spinal implant |
Country Status (5)
Country | Link |
---|---|
US (1) | US6179874B1 (en) |
EP (1) | EP1075236A1 (en) |
JP (1) | JP2002512079A (en) |
CA (1) | CA2329363C (en) |
WO (1) | WO1999053871A1 (en) |
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-
1999
- 1999-04-23 CA CA002329363A patent/CA2329363C/en not_active Expired - Fee Related
- 1999-04-23 JP JP2000544282A patent/JP2002512079A/en active Pending
- 1999-04-23 US US09/298,524 patent/US6179874B1/en not_active Expired - Fee Related
- 1999-04-23 EP EP99919994A patent/EP1075236A1/en not_active Withdrawn
- 1999-04-23 WO PCT/US1999/008898 patent/WO1999053871A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP1075236A1 (en) | 2001-02-14 |
US6179874B1 (en) | 2001-01-30 |
WO1999053871A1 (en) | 1999-10-28 |
JP2002512079A (en) | 2002-04-23 |
CA2329363C (en) | 2007-12-11 |
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