WO2008014452A3 - Spinal prosthesis with offset anchors - Google Patents
Spinal prosthesis with offset anchors Download PDFInfo
- Publication number
- WO2008014452A3 WO2008014452A3 PCT/US2007/074584 US2007074584W WO2008014452A3 WO 2008014452 A3 WO2008014452 A3 WO 2008014452A3 US 2007074584 W US2007074584 W US 2007074584W WO 2008014452 A3 WO2008014452 A3 WO 2008014452A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- offset
- vertebra
- anchor
- anchor structure
- midline
- Prior art date
Links
Classifications
-
- 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
- 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
-
- 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
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
- A61F2002/30495—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a locking ring
-
- 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
- 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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30841—Sharp anchoring protrusions for impaction into the bone, e.g. sharp pins, spikes
- A61F2002/30843—Pyramidally-shaped
-
- 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
- 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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30878—Special 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
- A61F2002/30884—Fins or wings, e.g. longitudinal wings for preventing rotation within the bone cavity
-
- 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
- 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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30878—Special 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
- A61F2002/30891—Plurality of protrusions
- A61F2002/30892—Plurality of protrusions parallel
-
- 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
- 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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30878—Special 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
- A61F2002/30899—Protrusions pierced with apertures
-
- 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
- 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
- A61F2002/443—Intervertebral or spinal discs, e.g. resilient made of articulated components having two transversal endplates and at least one intermediate component
-
- 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
- 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
- A61F2002/449—Joints for the spine, e.g. vertebrae, spinal discs comprising multiple spinal implants located in different intervertebral spaces or in different vertebrae
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
An implanted intervertebral prosthesis includes first and second components adapted to attach to a first vertebra and a second vertebra, respectively, that define an intervertebral space. The prosthesis includes a first anchor structure on the first component adapted to enter a grove formed in the first vertebra, and a second anchor structure on the second component adapted to enter a grove formed in the second vertebra. The first anchor structure is offset from the second anchor structure to provide separation of the grooves to preserve vertebral thickness and avoid vertebral splitting. The offset anchor structures can be symmetrically disposed about a midline of the prosthesis or asymmetrically disposed about the midline. In some embodiments, the offset anchor structures comprise elongate anchors shaped as fins or keels. In other embodiments, the offset anchor structures comprise rows of pillars disposed in rows. mplanted intervertebral prosthesis includes first and second components adapted to attach to a first vertebra and a second vertebra, respectively, that define an intervertebral space. The prosthesis includes a first anchor structure on the first component adapted to enter a grove formed in the first vertebra, and a second anchor structure on the second component adapted to enter a grove formed in the second vertebra. The first anchor structure is offset from the second anchor structure to provide separation of the grooves to preserve vertebral thickness and avoid vertebral splitting. The offset anchor structures can be symmetrically disposed about a midline of the prosthesis or asymmetrically disposed about the midline. In some embodiments, the offset anchor structures comprise elongate anchors shaped as fins or keels. In other embodiments, the offset anchor structures comprise rows of pillars disposed in rows.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07813466A EP2077800A4 (en) | 2006-07-28 | 2007-07-27 | Spinal prosthesis with offset anchors |
JP2009522018A JP2009544433A (en) | 2006-07-28 | 2007-07-27 | Spinal prosthesis with offset anchor |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US82076906P | 2006-07-28 | 2006-07-28 | |
US60/820,769 | 2006-07-28 | ||
US11/829,054 | 2007-07-26 | ||
US11/829,054 US20080051900A1 (en) | 2006-07-28 | 2007-07-26 | Spinal Prosthesis with Offset Anchors |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2008014452A2 WO2008014452A2 (en) | 2008-01-31 |
WO2008014452A3 true WO2008014452A3 (en) | 2008-06-26 |
Family
ID=38982385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2007/074584 WO2008014452A2 (en) | 2006-07-28 | 2007-07-27 | Spinal prosthesis with offset anchors |
Country Status (4)
Country | Link |
---|---|
US (1) | US20080051900A1 (en) |
EP (1) | EP2077800A4 (en) |
JP (1) | JP2009544433A (en) |
WO (1) | WO2008014452A2 (en) |
Families Citing this family (27)
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EP1549260B1 (en) | 2002-09-19 | 2010-01-20 | Malan De Villiers | Intervertebral prosthesis |
WO2004066884A1 (en) | 2003-01-31 | 2004-08-12 | Spinalmotion, Inc. | Intervertebral prosthesis placement instrument |
EP2329778A3 (en) * | 2003-01-31 | 2012-06-20 | Spinalmotion, Inc. | Spinal midline indicator |
US7575599B2 (en) | 2004-07-30 | 2009-08-18 | Spinalmotion, Inc. | Intervertebral prosthetic disc with metallic core |
US10052211B2 (en) | 2003-05-27 | 2018-08-21 | Simplify Medical Pty Ltd. | Prosthetic disc for intervertebral insertion |
US20090076614A1 (en) * | 2007-09-17 | 2009-03-19 | Spinalmotion, Inc. | Intervertebral Prosthetic Disc with Shock Absorption Core |
ATE480203T1 (en) * | 2003-05-27 | 2010-09-15 | Spinalmotion Inc | INTERVERTEBRAL DISC PROSTHESIS FOR INTERVERTEBRAL INSERTION |
US7585326B2 (en) * | 2004-08-06 | 2009-09-08 | Spinalmotion, Inc. | Methods and apparatus for intervertebral disc prosthesis insertion |
US8083797B2 (en) | 2005-02-04 | 2011-12-27 | Spinalmotion, Inc. | Intervertebral prosthetic disc with shock absorption |
US20070198093A1 (en) * | 2006-02-17 | 2007-08-23 | Amedica Corporation | Spinal implant with offset keels |
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-
2007
- 2007-07-26 US US11/829,054 patent/US20080051900A1/en not_active Abandoned
- 2007-07-27 EP EP07813466A patent/EP2077800A4/en not_active Withdrawn
- 2007-07-27 WO PCT/US2007/074584 patent/WO2008014452A2/en active Application Filing
- 2007-07-27 JP JP2009522018A patent/JP2009544433A/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040225365A1 (en) * | 2003-02-12 | 2004-11-11 | Sdgi Holdings, Inc. | Articular disc prosthesis for transforaminal insertion |
Non-Patent Citations (1)
Title |
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See also references of EP2077800A4 * |
Also Published As
Publication number | Publication date |
---|---|
WO2008014452A2 (en) | 2008-01-31 |
US20080051900A1 (en) | 2008-02-28 |
EP2077800A2 (en) | 2009-07-15 |
EP2077800A4 (en) | 2012-02-01 |
JP2009544433A (en) | 2009-12-17 |
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