EP2320833A1 - Implantat zum einsetzen zwischen wirbelkörper der wirbelsäule - Google Patents

Implantat zum einsetzen zwischen wirbelkörper der wirbelsäule

Info

Publication number
EP2320833A1
EP2320833A1 EP08874069A EP08874069A EP2320833A1 EP 2320833 A1 EP2320833 A1 EP 2320833A1 EP 08874069 A EP08874069 A EP 08874069A EP 08874069 A EP08874069 A EP 08874069A EP 2320833 A1 EP2320833 A1 EP 2320833A1
Authority
EP
European Patent Office
Prior art keywords
implant
plate
implant according
bottom plate
implant part
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.)
Withdrawn
Application number
EP08874069A
Other languages
German (de)
English (en)
French (fr)
Inventor
Erich Kast
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ulrich GmbH and Co KG
Original Assignee
Ulrich GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ulrich GmbH and Co KG filed Critical Ulrich GmbH and Co KG
Publication of EP2320833A1 publication Critical patent/EP2320833A1/de
Withdrawn legal-status Critical Current

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
    • 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
    • A61F2/30721—Accessories
    • A61F2/30744—End caps, e.g. for closing an endoprosthetic 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
    • A61F2/44—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
    • A61F2002/30331—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
    • A61F2002/30362—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 with possibility of relative movement between the protrusion and the recess
    • A61F2002/30369—Limited lateral translation of the protrusion within a larger recess
    • 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
    • A61F2002/30383—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove
    • A61F2002/3039—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove with possibility of relative movement of the rib within the groove
    • A61F2002/30397—Limited lateral translation of the rib within a larger groove
    • 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
    • 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
    • A61F2002/30507—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a threaded locking member, e.g. a locking screw or a set screw
    • 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
    • A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
    • A61F2002/3055—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting length
    • 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
    • A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
    • A61F2002/30553—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting a position by translation along an axis
    • 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
    • A61F2002/30576—Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs
    • A61F2002/30578—Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs having apertures, e.g. for receiving fixation screws
    • 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
    • A61F2002/30593—Special structural features of bone or joint prostheses not otherwise provided for hollow
    • 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
    • A61F2002/30601—Special structural features of bone or joint prostheses not otherwise provided for telescopic
    • 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
    • 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
    • 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
    • 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
    • A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
    • 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
    • A61F2250/0004—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof adjustable
    • A61F2250/0008—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof adjustable for adjusting a position by translation along an axis or two perpendicular axes

Definitions

  • the invention relates to an implant for insertion between vertebral bodies of the spine as a placeholder for vertebrae or vertebrae removed from the vertebral column, with a first implant part and a second implant part, which are adjustable in the direction of their coaxial longitudinal axis to change the length of the implant, and with at least one one fixable to the implant parts, facing the adjacent vortex and this at least partially overlapping fixing plate.
  • Such an implant is known from EP 0 950 388 A2.
  • This implant consists of a total of three implant parts, namely two terminal, intended for engagement with the adjacent vertebra terminal implant parts and a central intermediate implant part therebetween, which are connected to each other via threads.
  • Holes are formed in the terminal implant parts which primarily serve to allow access to the interior of the implant parts for introducing bone cement or bone material.
  • These holes are additionally used to be able to attach a fixation plate with a circular collar optionally to a terminal implant parts, for which purpose in the collar openings are formed, with two holes formed in the terminal implant part to cover can be brought. Through the openings bolts can be inserted into the holes.
  • the fixing plate has a slot in the longitudinal direction, which is adjustable in its width, so that a clamping of the bolts is achieved in the holes.
  • the fixation plate is attached to the outer periphery of the terminal implant part and can be used to improve the stability of the spine without preventing accessibility to the implant parts.
  • Restrictions is subject to because the change in length of the implant, the central implants relative to the terminal implant parts by applying a tool to be moved in a circular arc and adjustment by the arrangement of the fixation plate on the outer circumference of the terminal implant parts to the individual circumstances of the patient is not possible ,
  • the invention is therefore based on the object, an implant of the type mentioned in such a way that the position of the fixing plate relative to the implant is variable.
  • the fixing plate is formed by a swirl bearing plate and a protruding from this, the radial adjustment of the fixing plate relative to the implant part serving base plate with a guide rail, and that the one implant part Means are assigned for radial fixing of the bottom plate.
  • This implant is characterized in that a different distance of the vertebral investment plate to the center of the implant part adjustable is and thus a different placement of the implant between the vertebral bodies is possible without having to give up the use of the fixation plate.
  • the advantage of greater variability is combined with the advantage of improved stability, since the radial adjustability of the fixation plate with the vertebral bearing plate relative to the implant part can be terminated by the means for radially fixing the bottom plate. It is very particularly preferred in the context of the invention if each of the two implant parts each have a fixing plate is assigned, since so a further improved stability is achieved.
  • the implant part has an end plate facing the adjacent vertebra with an opening for receiving a clamping means engaging the bottom plate, since this will overcome a restriction on the circumference of the implant part for connection to the fixation plate.
  • the opening is designed as a threaded bore and the clamping means as a clamping screw.
  • the bottom plate is like a fork with at least two forks, in which attack the means for fixing. It is of course possible to provide more than two forks, so that in terms of increased variability and the means for fixing with different pairings of forks can interact, so the fixing plate can be adjusted in their lateral orientation relative to the implant part.
  • a particularly strong connection is used when the forks under the screw head of the clamping screw cross clamping webs.
  • An improved adaptation to the anatomical conditions makes it possible for the turbulence plates to have a convex cross-section, at least one screw opening and a window in the region of the connection to the bottom plate.
  • the screw opening is for
  • the window in the fixation plate serves primarily to allow visual inspection in the area behind the vortex plate.
  • the bottom plate has on the side facing the adjacent vortex at least one anchoring mandrel.
  • the first implant part and the second implant part are designed as tubular sleeves
  • the first implant part is assigned a rotatable threaded ring with a toothing which engages with a ring thread in a thread associated with the second implant part in that a threaded bore is formed in the wall of the first implant for inserting a surgical instrument serving for twisting the threaded ring.
  • the design and the interaction of such first and second implant parts with a surgical instrument is basically known from EP 1 219 266 A1, wherein this implant described therein and therefore not further explained here is suitable for the embodiment according to the invention using the radially adjustable fixation plate and thus overall a minimally invasive procedure is possible.
  • the locking seats are formed, which allow a primary position securing the fixing plate relative to the implant part before the final position assurance is done by tightening the clamping screw.
  • the locking seats are formed by transverse to the radial adjustment direction of the guide rail extending webs.
  • FIG. 2 shows a perspective view of the upper part of the implant with the fixation plate in a first radial position
  • FIG. 3 shows a perspective view of the upper part of the implant with the fixation plate in one 4 shows a perspective view of the implant from FIG. 3 from a different view
  • FIG. 5 shows a representation of the implant from FIG. 4 in a lateral perspective
  • 6 shows a side view of the implant according to the invention in situ between two vertebral bodies of the spinal column
  • FIG. 7 shows the detail VII from FIG. 6.
  • an implant 1 which serves for insertion between the vertebral body 8 of the spine as a placeholder for vertebrae or vertebrae removed from the vertebral column.
  • This implant 1 consists of a first implant part 2 and a second implant part 3, which are adjustable in the direction of their coaxial longitudinal axis to change the length of the implant 1 against each other.
  • This adjustability is achieved by designing the first implant part 2 and the second implant part 3 as tubular sleeves, the first implant part 2 comprising the second implant part 3 on the outside, with a rotatable threaded ring 4 assigned to the first implant part 2, which engages on its inner peripheral surface Has ring thread, with which this engages in a second implant part 3 associated thread 5.
  • a toothing 6, in particular a bevel gear On the outer peripheral surface of the threaded ring 4 is provided with a toothing 6, in particular a bevel gear, so that the length change in terms of distraction of the vertebral body 8 can be achieved by a rotation of the threaded ring 4 by means of a screwed into a threaded bore of the first implant part 2 surgical instrument.
  • These implant parts 2, 3 have an end plate 9 facing the adjacent vertebra with an opening.
  • This end plate 9 is used for releasably securing a fixable to the respective implant part 2, 3, facing the adjacent vortex and this at least partially overlapping fixing plate 10 by a vortex contact plate 11 as a projecting from this, the radial adjustment of the fixing plate 10 opposite the bottom part 12 serving for the implant part 2, 3 is formed with a guide rail 13. at In the exemplary embodiment illustrated in FIG. 1 and FIG.
  • each of the two implant parts 2, 3 is assigned the fixation plate 10 which can be fixed to the respective implant part 2, 3 by means of fixing the bottom plate 12, these means being shown in FIG Embodiment by a designed as a threaded hole opening of the end plate 9 to be screwed clamping screw 14 are designed.
  • the bottom plate 12 is like a fork with two forks 15 designed to which the clamping screw 14 acts, namely under the screw head 7 of the clamping screw 14 projecting clamping webs 16.
  • the turbulence plate 11 is convex in cross section and further has
  • FIG. 5 shows that, in the region of the connection to the base plate 12, the whirl bearing plate 11 has a window 19 which permits a control of the area behind the whirling plate 11 and at the same time opens up the possibility of guiding a tool or instrument through the window 19.
  • the bottom plate 12 has on the side facing the adjacent vortex a plurality of anchoring mandrels 20, which can penetrate into the vertebral body 8 and thus effect a positional backup before the bone screw 17 to be inserted through the bone screws 18, which are preferably designed as expansion screws, are placed.
  • the required position of the fixation plate 10 relative to the implant parts 2, 3 is determined more suitably by means of an imaging procedure and the fixation plate 10 is securely mounted on the implant part 2, 3 in preparation for the operation.
  • the distraction of the implant 1 to obtain the required height can then be carried out, in order then to carry out the final fixation of the implant 1 by means of the bone screws 18.
EP08874069A 2008-10-24 2008-10-24 Implantat zum einsetzen zwischen wirbelkörper der wirbelsäule Withdrawn EP2320833A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE2008/001721 WO2010045901A1 (de) 2008-10-24 2008-10-24 Implantat zum einsetzen zwischen wirbelkörper der wirbelsäule

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EP2320833A1 true EP2320833A1 (de) 2011-05-18

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EP08874069A Withdrawn EP2320833A1 (de) 2008-10-24 2008-10-24 Implantat zum einsetzen zwischen wirbelkörper der wirbelsäule

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EP (1) EP2320833A1 (es)
CN (1) CN101808597B (es)
MX (1) MX2009013311A (es)
TW (1) TWI465228B (es)
WO (1) WO2010045901A1 (es)

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Publication number Priority date Publication date Assignee Title
US9700425B1 (en) 2011-03-20 2017-07-11 Nuvasive, Inc. Vertebral body replacement and insertion methods
CN103830024B (zh) * 2014-03-05 2015-10-28 浙江科惠医疗器械股份有限公司 角度可调高度可伸缩人工椎体
CN104840281B (zh) * 2015-05-29 2018-03-23 北京爱康宜诚医疗器材股份有限公司 人工椎体
CN105853031B (zh) * 2016-04-29 2017-10-03 西安交通大学第二附属医院 一种仿生防脱位人工腰椎及椎间盘连接复合体
CN106510905A (zh) * 2016-11-23 2017-03-22 大博医疗科技股份有限公司 一种自身稳定可调节的人工椎体
CN106890037A (zh) * 2017-04-10 2017-06-27 北京大学人民医院 一种体内可延长人工椎体

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US5236460A (en) * 1990-02-12 1993-08-17 Midas Rex Pneumatic Tools, Inc. Vertebral body prosthesis
US5360430A (en) * 1993-07-29 1994-11-01 Lin Chih I Intervertebral locking device
US6682561B2 (en) * 1998-06-18 2004-01-27 Pioneer Laboratories, Inc. Spinal fixation system
DE29813139U1 (de) * 1998-07-23 1998-12-03 Howmedica Gmbh Wirbelkörper-Rekonstruktionssystem
FR2818530B1 (fr) * 2000-12-22 2003-10-31 Spine Next Sa Implant intervertebral a cale deformable
US7674296B2 (en) * 2005-04-21 2010-03-09 Globus Medical, Inc. Expandable vertebral prosthesis
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Publication number Publication date
TW201021774A (en) 2010-06-16
CN101808597A (zh) 2010-08-18
CN101808597B (zh) 2012-11-28
MX2009013311A (es) 2010-05-24
TWI465228B (zh) 2014-12-21
WO2010045901A1 (de) 2010-04-29

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