CA2542511A1 - Intervertebral implant with temporary blocking means - Google Patents
Intervertebral implant with temporary blocking means Download PDFInfo
- Publication number
- CA2542511A1 CA2542511A1 CA002542511A CA2542511A CA2542511A1 CA 2542511 A1 CA2542511 A1 CA 2542511A1 CA 002542511 A CA002542511 A CA 002542511A CA 2542511 A CA2542511 A CA 2542511A CA 2542511 A1 CA2542511 A1 CA 2542511A1
- Authority
- CA
- Canada
- Prior art keywords
- intervertebral implant
- apposed
- locking means
- joint
- parts
- 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
Links
Classifications
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- 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
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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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30159—Concave polygonal shapes
- A61F2002/30166—H-shaped or I-shaped
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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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
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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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- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
- A61F2002/30354—Cylindrically-shaped protrusion and recess, e.g. cylinder of circular basis
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- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
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- A61F2002/30387—Dovetail connection
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- A—HUMAN NECESSITIES
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- 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
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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
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- 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
- A61F2002/30485—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism plastically deformable
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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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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- 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
- A61F2002/30515—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a locking wedge or block
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
- A61F2002/30649—Ball-and-socket joints
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61F2/02—Prostheses implantable into the body
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- A61F2002/30672—Features concerning an interaction with the environment or a particular use of the prosthesis temporary
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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
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- A61F2002/30682—Means for preventing migration of particles released by the joint, e.g. wear debris or cement particles
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- 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
- A61F2310/0073—Coating or prosthesis-covering structure made of compounds based on metal carbides
- A61F2310/00748—Coating made of titanium carbide
-
- 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
- A61F2310/00796—Coating or prosthesis-covering structure made of a phosphorus-containing compound, e.g. hydroxy(l)apatite
Abstract
An intervertebral implant (1), in particular an artificial intervertebral disk, with a central axis (2), a top part (3), a bottom part (4) and a joint (9) arranged axially between the two parts (3, 4), and with removable locking means (21, wherein A) the top part (3) has a top apposed surface (35), a ventral side surface (31), a dorsal side surface (32) and two lateral side surfaces (33, 34) and the top apposed surface (35) is suitable to be placed on the base plate of a body of the vertebra adjacent above, B) the bottom part (4) has a bottom apposed surface (45), a ventral side surface (41), a dorsal side surface (42) and two lateral side surfaces (43, 44) and the bottom apposed surface (45) is suitable to be placed on the cover plate of a body of the vertebra adjacent below, C) the joint (9) comprises a convex joint part (12) with a first articular surface (10) and a joint shell (13) matching it, with a second articular surface (11) mounted in a sliding manner on the first articular surface (10), D) each of the two parts (3, 4) comprises means (20) to accommodate temporarily fastenable locking means (21) to fix the two parts (3, 4) relative one another, and E) the intervertebral implant (1) comprises at least one locking means (21) that can be inserted into and removed from the means (20).
Claims (28)
1. An intervertebral implant (1), in particular an artificial intervertebral disk, with a central axis (2), a top part (3), a bottom part (4) and a joint (9) arranged axially between the two parts (3, 4), wherein A) the top part (3) has a top apposed surface (35), a ventral side surface (31), a dorsal side surface (32) and two lateral side surfaces (33, 34) and the top apposed surface (35) is suitable to be placed on the base plate of a body of the vertebra adjacent above, B) the bottom part (4) has a bottom apposed surface (45), a ventral side surface (41), a dorsal side surface (42) and two lateral side surfaces (43, 44) and the bottom apposed surface (45) is suitable to be placed on the cover plate of a body of the vertebra adjacent below, C) the joint (9) comprises a convex joint part (12) with a first articular surface (10) and a joint shell (13) matching it, with a second articular surface (11) mounted in a sliding manner on the first articular surface (10), characterised in that D) each of the two parts (3, 4) comprises means (20) to accommodate temporarily fastenable locking means (21) to temporarily fix the two parts (3, 4) relative one another, and E) the intervertebral implant (1) comprises at least one temporary locking means (21) inserted into the means (20), which is suitable to be introduced into the intervertebral space together with the intervertebral implant (1) and to be removed after the implantation of the locked intervertebral implant (1) has been effected, such that the implanted intervertebral implant (1) receives its functional mobility.
2. An intervertebral implant (1) according to claim 1, characterised in that the locking means (21) is made from one piece.
3. An intervertebral implant (1) according to claim 1 or 2, characterised in that the locking means (21) allow an automatic fixing of the two parts (3, 4).
4. An intervertebral implant (1) according to any one of claims 1 to 3, characterised in that the means (20) comprise at least one top groove (22) on the top part (3) as well as at least one bottom groove (23) on the bottom part (4), while the longitudinal axes of the grooves (22, 23) intersect the ventral side surfaces (31, 41) of the respective part (3, 4).
5. An intervertebral implant (1) according to claim 4, characterised in that the grooves (22, 23) terminate in the ventral side surface (31, 41) of the respective part (3, 4).
6. An intervertebral implant (1) according to claim 4 or 5, characterised in that in the middle between the lateral side surfaces (33, 34, 43, 44) it has a central plane (19) that contains the central axis (2) and comprises a top groove (22a, 22b) and a bottom groove (23a, 23b) on each side of the central plane (19).
7. An intervertebral implant (1) according to claim 6, characterised in that the cross-section of the grooves (22, 23) situated perpendicularly to the central plane (19) narrows towards the top and bottom surfaces (36, 46), respectively, of the two parts (3, 4).
8. An intervertebral implant (1) according to claim 6 or 7, characterised in that the grooves (22, 23) are curved and have arch-shaped longitudinal axes, while the distances of the longitudinal axes towards the central plane (19) increase relative to the ventral side.
9. An intervertebral implant (1) according to any one of claims 1 to 6, characterised in that the locking means (21) comprise a joining web (28) that is arranged parallel to the central axis (2) and at the end of it a leg (27) or a transverse web (30) each.
10. An intervertebral implant (1) according to claim 8, characterised in that the locking means (21) have a pliers-like construction and comprise two jaws (50) which can move relative one another about a pivot hinge (52) and can be introduced into the grooves (22, 23).
11. An intervertebral implant (1) according to claim 10, characterised in that the axis (49) of rotation of the pivot hinge (52) extends parallel to the central axis (2).
12. An intervertebral implant (1) according to any one of claims 1 to 11, characterised in that the convex joint part (12) has a spherical construction.
13. An intervertebral implant (1) according to claim 12, characterised in that the radius of the first articular surface (10) of the convex spherical joint (12) part is between 3 mm and 25 mm.
14. An intervertebral implant (1) according to claim 13, characterised in that the radius of the first articular surface (10) of the convex spherical joint (12) part is between 4 mm and 20 mm.
15. An intervertebral implant (1) according to any one of claims 1 to 14, characterised in that the convex joint part (12) and the joint shell (13) are made from a metal/plastics material pair.
16. An intervertebral implant (1) according to any one of claims 1 to 15, characterised in that the articular surfaces (10, 11) are coated with titanium carbide or amorphous carbon (ADLC).
17. An intervertebral implant (1) according to any one of claims 1 to 16, characterised in that the two parts (3, 4) are coated with titanium on the apposed surfaces (5, 7).
18. An intervertebral implant (1) according to any one of claims 1 to 17, characterised in that the apposed surfaces (5, 7) have a convex construction.
19. An intervertebral implant (1) according to any one of claims 1 to 18, characterised in that the apposed surfaces (5, 7) of the two parts (3, 4) are provided at least partially with macroscopic structures.
20. An intervertebral implant (1) according to claim 19, characterised in that the macroscopic structures are protuberances (18).
21. An intervertebral implant (1) according to claim 20, characterised in that the protuberances (18) comprise pyramid-like protuberances (17)
22. An intervertebral implant (1) according to claim 20 or 21, characterised in that the protuberances (18) comprise at least one wedge-shaped rib (38) that is symmetrical about the central plane (19) and is situated on the respective apposed surfaces (31, 41) in a straight line that is parallel to the central plane (19).
23. An intervertebral implant (1) according to claim 20 or 21, characterised in that the protuberances (18) comprises saw-tooth like serrations (39) arranged symmetrically about the central plane (19).
24. An intervertebral implant (1) according to any one of claims 21 to 23, characterised in that a pyramid-shaped protuberance (17) has a volume V
between 0.12 mm3 and 1.4 mm3.
between 0.12 mm3 and 1.4 mm3.
25. An intervertebral implant (1) according to any one of claims 20 to 24, characterised in that the protuberances (18) are coated at least partially with hydroxylapatite or with a bi-phased hydroxylapatite-tricalcium phosphate mixture.
26. An intervertebral implant (1) according to any one of claims 1 to 25, characterised in that the locking means (21) have a maximum volume of 12cm3.
27. An intervertebral implant (1) according to claim 26, characterised in that the locking means (21) have a maximum volume of 6 cm3.
28. An intervertebral implant (1) according to any one of claims 1 to 27, characterised in that it comprises a sterile packaging.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CH2003/000496 WO2005007041A1 (en) | 2003-07-22 | 2003-07-22 | Intervertebral implant comprising temporary blocking means |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2542511A1 true CA2542511A1 (en) | 2005-01-27 |
CA2542511C CA2542511C (en) | 2011-07-05 |
Family
ID=34069949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2542511A Expired - Fee Related CA2542511C (en) | 2003-07-22 | 2003-07-22 | Intervertebral implant with temporary blocking means |
Country Status (16)
Country | Link |
---|---|
US (1) | US7704280B2 (en) |
EP (1) | EP1648351B1 (en) |
JP (1) | JP4299835B2 (en) |
KR (1) | KR100973030B1 (en) |
CN (1) | CN100566678C (en) |
AR (1) | AR046401A1 (en) |
AT (1) | ATE423532T1 (en) |
AU (1) | AU2003304353B2 (en) |
BR (1) | BR0318406A (en) |
CA (1) | CA2542511C (en) |
CL (1) | CL2004001823A1 (en) |
DE (1) | DE50311234D1 (en) |
ES (1) | ES2319637T3 (en) |
NZ (1) | NZ544723A (en) |
TW (1) | TW200513246A (en) |
WO (1) | WO2005007041A1 (en) |
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2003
- 2003-07-22 DE DE50311234T patent/DE50311234D1/en not_active Expired - Lifetime
- 2003-07-22 KR KR1020067001584A patent/KR100973030B1/en not_active IP Right Cessation
- 2003-07-22 NZ NZ544723A patent/NZ544723A/en not_active IP Right Cessation
- 2003-07-22 EP EP03739938A patent/EP1648351B1/en not_active Expired - Lifetime
- 2003-07-22 AT AT03739938T patent/ATE423532T1/en not_active IP Right Cessation
- 2003-07-22 WO PCT/CH2003/000496 patent/WO2005007041A1/en active Application Filing
- 2003-07-22 AU AU2003304353A patent/AU2003304353B2/en not_active Ceased
- 2003-07-22 CA CA2542511A patent/CA2542511C/en not_active Expired - Fee Related
- 2003-07-22 ES ES03739938T patent/ES2319637T3/en not_active Expired - Lifetime
- 2003-07-22 CN CNB038267810A patent/CN100566678C/en not_active Expired - Fee Related
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- 2003-07-22 JP JP2005504321A patent/JP4299835B2/en not_active Expired - Fee Related
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2004
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- 2004-07-21 CL CL200401823A patent/CL2004001823A1/en unknown
- 2004-07-22 AR ARP040102597A patent/AR046401A1/en unknown
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2006
- 2006-01-23 US US11/338,453 patent/US7704280B2/en active Active
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CL2004001823A1 (en) | 2005-05-06 |
ATE423532T1 (en) | 2009-03-15 |
AU2003304353A1 (en) | 2005-02-04 |
TW200513246A (en) | 2005-04-16 |
NZ544723A (en) | 2010-03-26 |
US20060229724A1 (en) | 2006-10-12 |
CA2542511C (en) | 2011-07-05 |
WO2005007041A1 (en) | 2005-01-27 |
EP1648351B1 (en) | 2009-02-25 |
AU2003304353B2 (en) | 2009-05-28 |
JP2007506444A (en) | 2007-03-22 |
BR0318406A (en) | 2006-09-19 |
KR20060113640A (en) | 2006-11-02 |
KR100973030B1 (en) | 2010-07-30 |
CN1819805A (en) | 2006-08-16 |
DE50311234D1 (en) | 2009-04-09 |
AR046401A1 (en) | 2005-12-07 |
US7704280B2 (en) | 2010-04-27 |
CN100566678C (en) | 2009-12-09 |
EP1648351A1 (en) | 2006-04-26 |
JP4299835B2 (en) | 2009-07-22 |
ES2319637T3 (en) | 2009-05-11 |
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