DE20313512U1 - Implant used for closing gap created in annulus fibrous, designed in shape of flexible plug with rigid holding elements - Google Patents
Implant used for closing gap created in annulus fibrous, designed in shape of flexible plug with rigid holding elements Download PDFInfo
- Publication number
- DE20313512U1 DE20313512U1 DE20313512U DE20313512U DE20313512U1 DE 20313512 U1 DE20313512 U1 DE 20313512U1 DE 20313512 U DE20313512 U DE 20313512U DE 20313512 U DE20313512 U DE 20313512U DE 20313512 U1 DE20313512 U1 DE 20313512U1
- Authority
- DE
- Germany
- Prior art keywords
- implant according
- stopper
- implant
- plug
- annulus
- 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.)
- Expired - Lifetime
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
-
- 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
-
- 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
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
- A61B17/1757—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the spine
-
- 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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4601—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for introducing bone substitute, for implanting bone graft implants or for compacting them in 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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- 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
-
- 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
- A61B17/1604—Chisels; Rongeurs; Punches; Stamps
-
- 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
- A61B17/1604—Chisels; Rongeurs; Punches; Stamps
- A61B17/1606—Chisels; Rongeurs; Punches; Stamps of forceps type, i.e. having two jaw elements moving relative to each other
- A61B17/1608—Chisels; Rongeurs; Punches; Stamps of forceps type, i.e. having two jaw elements moving relative to each other the two jaw elements being linked to two elongated shaft elements moving longitudinally relative to each other
-
- 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
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1735—Guides or aligning means for drills, mills, pins or wires for rasps or chisels
-
- 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
- A61F2/441—Joints for the spine, e.g. vertebrae, spinal discs made of inflatable pockets or chambers filled with fluid, e.g. with hydrogel
-
- 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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4684—Trial or dummy prostheses
-
- 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
- A61F2/0077—Special surfaces of prostheses, e.g. for improving ingrowth
- A61F2002/009—Special surfaces of prostheses, e.g. for improving ingrowth for hindering or preventing attachment of biological tissue
-
- 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
- A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
- A61F2002/30004—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis
- A61F2002/30014—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis differing in elasticity, stiffness or compressibility
-
- 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
- A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
- A61F2002/30004—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis
- A61F2002/30016—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis differing in hardness, e.g. Vickers, Shore, Brinell
-
- 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
- A61F2002/30003—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
-
- 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
- A61F2002/30108—Shapes
- A61F2002/30199—Three-dimensional shapes
- A61F2002/30224—Three-dimensional shapes cylindrical
-
- 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
- A61F2002/30108—Shapes
- A61F2002/30199—Three-dimensional shapes
- A61F2002/30261—Three-dimensional shapes parallelepipedal
-
- 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
- A61F2002/30108—Shapes
- A61F2002/30199—Three-dimensional shapes
- A61F2002/30261—Three-dimensional shapes parallelepipedal
- A61F2002/30263—Three-dimensional shapes parallelepipedal cubical
-
- 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
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30604—Special structural features of bone or joint prostheses not otherwise provided for modular
- A61F2002/30616—Sets comprising a plurality of prosthetic parts of different sizes or orientations
-
- 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
- A61F2002/30879—Ribs
-
- 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
- A61F2002/30904—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves serrated profile, i.e. saw-toothed
-
- 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
- A61F2002/3092—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth having an open-celled or open-pored structure
-
- 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
- A61F2002/30932—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth for retarding or preventing ingrowth of bone tissue
-
- 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
- A61F2002/4435—Support means or repair of the natural disc wall, i.e. annulus, e.g. using plates, membranes or meshes
-
- 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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- 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
- A61F2002/4625—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 with relative movement between parts of the instrument during use
- A61F2002/4627—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 with relative movement between parts of the instrument during use with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument
-
- 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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2002/4635—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor using minimally invasive surgery
-
- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0004—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof bioabsorbable
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0069—Three-dimensional shapes cylindrical
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0082—Three-dimensional shapes parallelepipedal
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0082—Three-dimensional shapes parallelepipedal
- A61F2230/0084—Three-dimensional shapes parallelepipedal cubical
-
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special 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
- A61F2250/0018—Special 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 elasticity, stiffness or compressibility
-
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special 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
- A61F2250/0019—Special 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 hardness, e.g. Vickers, Shore, Brinell
Abstract
Description
Die Erfindung betrifft ein Implantat zum Verschluß einer Öffnung des Annulus fibrosus in Form eines Stopfens.The invention relates to an implant to close an opening of the Annulus fibrosus in the form of a stopper.
Die menschliche Wirbelsäule, insbesondere die Bandscheiben, sind einem natürlichen Alterungsprozeß unterworfen. Dabei verringert sich der Flüssigkeitsgehalt des gelartigen Kerns der Bandscheibe (Nucleus pulposus). Dadurch verliert die Bandscheibe an Höhe, und der faserartige Ring, der den Nucleus umgibt (Annulus fibrosus), wird immer stärker beansprucht. Es können Risse im Annulus entstehen, durch welche Nucleusmaterial nach außen gedrückt wird. So entstehen zunächst Vorwölbungen (Prolaps), bei denen das Nucleusmaterial noch innerhalb der Bandscheibe bleibt. Ist das Nucleusmaterial vollständig aus dem Annulus ausgetreten, spricht man von einem Sequester. Prolaps und Sequester können Schmerzen von unterschiedlichem Ausmaß hervorrufen, je nachdem wie stark die benachbarten Nervenwurzeln oder der Spinalkanal beeinträchtigt werden.The human spine, especially the Intervertebral discs, are a natural one Subject to aging process. This reduces the liquid content of the gel-like nucleus of the intervertebral disc (nucleus pulposus). Thereby the intervertebral disc loses height, and the fibrous ring that surrounds the nucleus (annulus fibrosus), is getting stronger claimed. It can Cracks develop in the annulus, through which nucleus material is pressed outwards. So initially arise protrusions (Prolapse), in which the nucleus material is still inside the intervertebral disc remains. When the nucleus material has completely exited the annulus, one speaks of a sequester. Prolapse and sequester can be painful of varying degrees, depending on how strong the neighboring nerve roots or the spinal canal be affected.
Bei einer Bandscheibenoperation wird deshalb zunächst alles ausgetretene Nucleusmaterial entfernt. Um sicherzugehen, daß es zu keinem erneuten Bandscheibenvorfall kommt, wird auch ein Teil des noch in der Bandscheibe befindlichen Nucleus entfernt (Nucleotomie). Das dabei entfernte Material kann zur Wiederherstellung oder Regeneration des Nucleus verwendet werden. Es wird nämlich ein Teil des Nucleusmaterials, welches dem Patienten bei der Nucleotomie entnommen wurde, dazu benutzt, um biotechnologisch Zellen neu anzuzüchten. Es wird ein Bandscheibenzelltransplatat aus körpereigenen Zellen hergestellt, welches dem Patienten etwa zwei Wochen nach der Bandscheibenoperation wieder in die Bandscheibe injiziert wird. Die injizierten Zellen siedeln sich wieder an und tragen zu einer Regeneration des noch vorhandenen Nucleus bei.During an intervertebral disc surgery therefore first all leaked nucleus material removed. To make sure it is too If there is no renewed herniated disc, part of the Nucleus still in the intervertebral disc removed (nucleotomy). The removed material can be used to restore or regenerate the Nucleus can be used. Because it becomes part of the nucleus material which was removed from the patient during the nucleotomy used to re-grow cells biotechnologically. It becomes a spinal disc cell transplant from the body's own Cells produced, which the patient about two weeks after the intervertebral disc surgery is injected back into the intervertebral disc. The injected cells resettle and contribute to one Regeneration of the remaining nucleus.
Allerdings ergibt sich dadurch ein Problem, daß der Annulus nicht mehr intakt ist, durch die bei der Nucleotomie erzeugte Öffnung und durch Risse im Annulus können die injizierten Zellen wieder entweichen und absterben, noch bevor sie anwachsen konnten.However, this results in a Problem that the Annulus is no longer intact due to the opening and nucleotomy through cracks in the annulus the injected cells escape and die even before they could grow.
Es ist bekannt, Öffnungen im Annulus durch Einsetzen
von Annulusverschlüssen
zu verschließen (
Es ist Aufgabe der Erfindung, ein gattungsgemäßes Implantat so auszubilden, daß einerseits eine sichere Festlegung des Implantates sichergestellt ist und andererseits ein zuverlässiger Verschluß der Annulusöffnung, wobei die Beweglichkeit des Annulus erhalten bleiben soll.It is an object of the invention generic implant to train so that on the one hand secure fixation of the implant is ensured and on the other hand a reliable Closure of the Annulusöffnung, the mobility of the annulus should be preserved.
Diese Aufgabe wird bei einem Implantat der eingangs beschriebenen Art erfindungsgemäß dadurch gelöst, daß der Stopfen an seiner Oberseite und an seiner Unterseite formstabile Verankerungselemente für die Endplatten benachbarter Wirbelkörper und im Bereich zwischen Oberseite und Unterseite eine verformbare Struktur aufweist.This task is done with an implant of the type described in the invention solved in that the stopper Anchoring elements of stable shape on the top and bottom for the End plates of adjacent vertebral bodies and a deformable area between the top and bottom Has structure.
Es wird also ein Implantat in Form eines Stopfens verwendet, welcher in die Öffnung des Annulus eingesetzt wird und welcher im wesentlichen eine verformbare Struktur aufweist, so daß er sich an die Struktur des Annulus anpaßt und sich insbesondere im Abdichtungsbereich am Rand der zu verschließenden Öffnung dicht an das Annulusgewebe anlegt, während er andererseits die freie Beweglichkeit des Annulusgewebes nicht beeinträchtigt. Andererseits läßt sich dieser verformbare Stopfen durch die formstabilen Verankerungselemente an der Oberseite und an der Unterseite des Stopfens an den Endplatten der benachbarten Wirbelkörper festlegen, so daß die Wirbelkörper die Positionierung des Stopfens gewährleisten, so daß dieser durch die Bewegung des Annulus nicht aus seiner Position entfernt wird.So it becomes an implant in shape of a stopper, which is inserted into the opening of the annulus and which essentially has a deformable structure, so he adapts to the structure of the annulus and especially in the Sealing area at the edge of the opening to be closed tightly against the annulus tissue, while on the other hand, he does not see the free mobility of the annulus tissue impaired. On the other hand, this deformable plug through the dimensionally stable anchoring elements on the top and bottom of the plug on the end plates of the neighboring vertebrae set so that the vertebra ensure the positioning of the plug so that it not removed from its position by the movement of the annulus becomes.
Die formstabilen Verankerungselemente können beispielsweise dadurch gebildet werden, daß gemäß einer bevorzugten Ausführungsform die Oberseite und/oder die Unterseite formstabiler sind als der zwischen Oberseite und Unterseite liegende Bereich des Stopfens. In diesem Falle wirken die Oberseite und die Unterseite als Verankerungselemente und bilden Anlageflächen, die an den Endplatten anliegen und dadurch den Stopfen in seiner Lage fixieren.The dimensionally stable anchoring elements can, for example are formed in that according to a preferred embodiment the top and / or bottom are more dimensionally stable than that area of the stopper between the top and bottom. In this case, the top and the bottom act as anchoring elements and form contact areas, which rest on the end plates and thereby the plug in its Fix position.
Es ist günstig, wenn das Implantat aus resorbierbarem Material besteht, so daß sich der Stopfen nach einiger Zeit auflöst. Sobald die implantierten Zellkulturen angewachsen sind, verschließen sie den Annulus wieder, so daß dann der Stopfen durch körpereigenes Gewebe ersetzt werden kann.It is beneficial if the implant is made resorbable material, so that the plug after some Dissolves time. As soon as the implanted cell cultures have grown, they close the annulus again, so that then the plug through the body's own Tissue can be replaced.
Der Stopfen kann insbesondere aus einem porösen Material bestehen, die Porengröße kann beispielsweise zwischen 150 μm und 200 μm liegen. Es ist dadurch möglich, Zellkulturen auch in den Stopfen zu injizieren, so daß diese auch in diesem Bereich anwachsen und die Öffnung beschleunigt verschließen.The plug can be made in particular a porous Material exist, for example, the pore size between 150 μm and 200 μm lie. This makes it possible Inject cell cultures also into the stopper so that this also grow in this area and close the opening faster.
Besonders vorteilhaft ist es, wenn die Oberseite und die Unterseite mindestens einen in die Endplatte des benachbarten Wirbelkörpers einsetzbaren Vorsprung tragen. Diese Vorsprünge können in das Material der benachbarten Wirbelkörper eingreifen und fixieren dadurch den Stopfen in der gewünschten Lage. Beispielsweise ist es möglich, im Wirbelkörper entsprechende Vertiefungen auszuarbeiten, in die diese Vorsprünge eingreifen.It is particularly advantageous if the upper side and the lower side carry at least one projection which can be inserted into the end plate of the adjacent vertebral body. These projections can engage in the material of the adjacent vertebrae and thereby fix the plug in the desired position. For example, it is possible to work out corresponding depressions in the vertebral body in which these projections engage.
Günstig ist es, wenn mehrere Vorsprünge in einer Linie nebeneinander liegen, diese Vorsprünge können dann beispielsweise in eine linienförmige Vertiefung der Endplatte eingreifen.Cheap it is when there are multiple protrusions next to each other in a line, these projections can then for example in a linear depression engage the end plate.
Bei einer anderen Ausführungsform ist vorgesehen, daß der Vorsprung eine Längsrippe ist.In another embodiment it is envisaged that the Protrusion a longitudinal rib is.
Dabei ist es vorteilhaft, wenn die Linie der Vorsprünge bzw. die Längsrichtung der Längsrippe parallel zur Einschubrichtung des Stopfens verläuft. Man kann auf diese Weise den Stopfen in die Öffnung einschieben, und gleichzeitig greifen die in einer Linie hintereinander angeordneten Vorsprünge oder die entsprechend ausgerichtete Längsrippe in eine in Vorschubrichtung verlaufende Rinne im Wirbelkörper ein, die vor dem Einsetzen in den Wirbelkörper eingearbeitet wird. Man erhält auf diese Weise eine sehr sichere Festlegung des Stopfens.It is advantageous if the Line of protrusions or the longitudinal direction parallel to the longitudinal rib to the direction of insertion of the plug. You can do that the plug into the opening insert, and at the same time they grip in a line arranged projections or the correspondingly aligned longitudinal rib into a groove in the vertebral body running in the direction of advance, which is worked into the vertebral body before insertion. you receives in this way a very secure fixing of the plug.
Eine zusätzliche Fixierung des Stopfens kann man dadurch erreichen, daß der Vorsprung eine Zahnung aufweist.An additional fixation of the plug can one can achieve that the Projection has a toothing.
Insbesondere bei größeren Stopfen ist es günstig, wenn quer zur Einschubrichtung des Stopfens nebeneinander mehrere Vorsprünge angeordnet sind, so daß eine besonders homogene Festlegung des Stopfens in den benachbarten Wirbelkörpern erfolgen kann.Especially with larger plugs is it convenient if several crosswise to the direction of insertion of the stopper projections are arranged so that a the plug in the adjacent vertebral bodies is particularly homogeneous can.
Dabei ist es vorteilhaft, wenn die Vorsprünge gegenüber der Seitenfläche des Stopfens zurückgesetzt sind, so daß die seitlich überstehenden Teile des Stopfens sich optimal an das Gewebe des Annulus anpassen können, da dieses Gewebe flexibel und gegebenenfalls elastisch ausgebildet ist.It is advantageous if the Lead over the side surface of the stopper are so that the protruding laterally Parts of the stopper adapt optimally to the tissue of the annulus can, because this fabric is flexible and possibly elastic is.
Bei einer bevorzugten Ausführungsform ist vorgesehen, daß der Stopfen die Form eines Würfels oder Quaders hat, es sind aber auch andere Formen des Stopfens möglich, beispielsweise können Stopfen in Zylinderform verwendet werden, deren Längsachse parallel zur Einschubrichtung verläuft.In a preferred embodiment it is envisaged that the Plug the shape of a cube or Cuboid has, but other forms of tamping are possible, for example can Plugs are used in cylindrical form, their longitudinal axis runs parallel to the direction of insertion.
Bei einer besonders bevorzugten Ausführungsform ist der Stopfen mit einer Membran abgedeckt, die ebenfalls aus resorbierbarem Material besteht, dies dichtet den Stopfen nach außen zusätzlich ab, so daß in ihn injizierte Zellen sicher im Stopfen verbleiben.In a particularly preferred embodiment the stopper is covered with a membrane, which is also made of absorbable Material exists, this additionally seals the plug to the outside, so that in cells injected remain safely in the stopper.
Günstig ist es dabei, wenn die Membran langsamer resorbierbar ist als der Stopfen.Cheap it is when the membrane is more slowly absorbable than the Plug.
Weiterhin kann vorgesehen sein, daß der Stopfen an seiner Außenseite mit einem Anti-Adhäsionsmittel versehen ist, um in diesem Bereich die Bildung von Narbengewebe zu vermeiden.Furthermore, it can be provided that the stopper on its outside with an anti-adhesive is provided to the formation of scar tissue in this area to avoid.
Es ist vorteilhaft, wenn das Implantat Teil eines Satzes von Stopfen mit unterschiedlicher Höhe und/oder Breite ist, so daß der Operateur während der Operation aus diesem Satz einen Stopfen der geeigneten Abmessungen auswählen kann und dadurch eine optimale Abdichtung der Öffnung des Annulus fibrosus erreicht.It is advantageous if the implant Part of a set of plugs of different heights and / or Width is so that the Surgeon during the Operation from this set a stopper of the appropriate dimensions choose can and thus an optimal seal of the opening of the annulus fibrosus reached.
Die nachfolgende Beschreibung bevorzugter Ausführungsformen der Erfindung dient im Zusammenhang mit der Zeichnung der näheren Erläuterung. Es zeigen:The following description of preferred embodiments the invention serves in conjunction with the drawing for a more detailed explanation. Show it:
Wie aus der Zeichnung, insbesondere
aus den
In
Um diese Verletzung zu beheben, wird
in einer Operation das aus der Öffnung
In einem weiteren Operationsschritt
muß die Öffnung
An seiner Oberseite und an seiner
Unterseite ist in das Probeimplantat
In gleicher Weise kann auf der Unterseite
der Bandscheibe
Nach Entnahme des Probeimplantates
Wie aus der Darstellung der
Das Implantat
Das gesamte Material des Stopfens
zwischen den Rippen
Wenn die Öffnung
Bei dem in den
Bei dem abgewandelten Ausführungsbeispiel
der
Anstelle der Rippen
An seiner Außenseite kann das Implantat
Außerdem kann in diesem Bereich eine in der Zeichnung nicht näher dargestellte Anti-Adhäsionsschicht aufgetragen werden, diese kann beispielsweise aus einem gelatinehaltigen Gel oder Spray bestehen. Dadurch kann eine postoperative Entstehung von Narbengewebe verhindert werden.It can also in this area one not in the drawing anti-adhesion layer shown can be applied, for example, from a gelatin-containing Gel or spray exist. This can result in postoperative development can be prevented by scar tissue.
Claims (17)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20313512U DE20313512U1 (en) | 2003-08-26 | 2003-08-26 | Implant used for closing gap created in annulus fibrous, designed in shape of flexible plug with rigid holding elements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20313512U DE20313512U1 (en) | 2003-08-26 | 2003-08-26 | Implant used for closing gap created in annulus fibrous, designed in shape of flexible plug with rigid holding elements |
Publications (1)
Publication Number | Publication Date |
---|---|
DE20313512U1 true DE20313512U1 (en) | 2003-12-04 |
Family
ID=29724183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE20313512U Expired - Lifetime DE20313512U1 (en) | 2003-08-26 | 2003-08-26 | Implant used for closing gap created in annulus fibrous, designed in shape of flexible plug with rigid holding elements |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE20313512U1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006044649A2 (en) * | 2004-10-14 | 2006-04-27 | Sdgi Holdings, Inc. | Implant system, method, and instrument for augmentation or reconstruction of intervertebral disc |
EP2077801A2 (en) * | 2006-07-28 | 2009-07-15 | Spinalmotion Inc. | Spinal prosthesis with multiple pillar anchors |
-
2003
- 2003-08-26 DE DE20313512U patent/DE20313512U1/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006044649A2 (en) * | 2004-10-14 | 2006-04-27 | Sdgi Holdings, Inc. | Implant system, method, and instrument for augmentation or reconstruction of intervertebral disc |
WO2006044649A3 (en) * | 2004-10-14 | 2006-09-21 | Sdgi Holdings Inc | Implant system, method, and instrument for augmentation or reconstruction of intervertebral disc |
US7682393B2 (en) | 2004-10-14 | 2010-03-23 | Warsaw Orthopedic, Inc. | Implant system, method, and instrument for augmentation or reconstruction of intervertebral disc |
EP2077801A2 (en) * | 2006-07-28 | 2009-07-15 | Spinalmotion Inc. | Spinal prosthesis with multiple pillar anchors |
EP2077801A4 (en) * | 2006-07-28 | 2012-01-25 | Spinalmotion Inc | Spinal prosthesis with multiple pillar anchors |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1658024B1 (en) | Implant for closing an opening of the annulus fibrosus | |
DE69637048T2 (en) | LORDOTIC SPONDYLODE ELEPLANTS | |
DE60320464T2 (en) | Vertebral distractor | |
DE69814390T2 (en) | Spinal disc-GRAFT | |
EP1841385B1 (en) | Implant for transforaminal intracorporeal fusion | |
DE69836834T2 (en) | TRANSLATION AND ROTATION MOVEMENT PERMISSIBLE ARTIFICIAL INTERMEDIATE JOINTING | |
DE69837883T2 (en) | Spinal implant and cutting tool preparation accessory for implant insertion | |
WO1999037255A1 (en) | Implant | |
EP2696811A1 (en) | Intervertebral implant and insertion device | |
WO2006081843A1 (en) | Expandable implant placeable between two vertebral bodies | |
WO2003075804A1 (en) | Cervical intervertebral prosthesis | |
DE2007355A1 (en) | Hair implants | |
WO2005004756A2 (en) | Intervertebral disk prosthesis | |
EP1206226A1 (en) | Implant from osseous material | |
WO2005102227A1 (en) | Device for manipulating hollow intervertebral or disk prostheses and supplying said prostheses with a flowable osteocementum | |
EP2621382A1 (en) | Lamina implant set | |
DE69634255T2 (en) | ELEMENTS FOR JOINT PROSTHESIS AND METHOD FOR THE PRODUCTION THEREOF | |
EP3331472B1 (en) | Implant for sealing a defect in the anulus fibrosus of an intervertebral disc | |
EP1809211B1 (en) | Prosthesis for binding a vertebral body | |
WO2009071045A1 (en) | Modular prostheses and method for implanting modular prostheses | |
DE102007042946A1 (en) | Implantable, prosthetic vertebral body replacement | |
DE20313512U1 (en) | Implant used for closing gap created in annulus fibrous, designed in shape of flexible plug with rigid holding elements | |
DE4105165A1 (en) | TOOTH ROOT IMPLANT | |
DE60219352T2 (en) | SET OF FEATURES FIXED WITH A LIQUID INJECTED BY THEIR CENTER | |
DE102005040329B4 (en) | Apparatus and method for the production of implants from fast-curing, in the original state liquid or gelatinous plastic materials |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 20040115 |
|
R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20060818 |
|
R081 | Change of applicant/patentee |
Owner name: AESCULAP AG, DE Free format text: FORMER OWNER: AESCULAP AG & CO. KG, 78532 TUTTLINGEN, DE Effective date: 20080624 |
|
R151 | Utility model maintained after payment of second maintenance fee after six years |
Effective date: 20090910 |
|
R152 | Utility model maintained after payment of third maintenance fee after eight years |
Effective date: 20111027 |
|
R071 | Expiry of right | ||
R071 | Expiry of right |