WO2005044151A1 - Implant a placer entre des corps vertebraux - Google Patents

Implant a placer entre des corps vertebraux Download PDF

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Publication number
WO2005044151A1
WO2005044151A1 PCT/DE2004/002445 DE2004002445W WO2005044151A1 WO 2005044151 A1 WO2005044151 A1 WO 2005044151A1 DE 2004002445 W DE2004002445 W DE 2004002445W WO 2005044151 A1 WO2005044151 A1 WO 2005044151A1
Authority
WO
WIPO (PCT)
Prior art keywords
implant
plate
blind hole
vertebral body
implant plate
Prior art date
Application number
PCT/DE2004/002445
Other languages
German (de)
English (en)
Inventor
Sideris Pantazis
Original Assignee
Ulrich Gmbh & 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 & Co. Kg filed Critical Ulrich Gmbh & Co. Kg
Publication of WO2005044151A1 publication Critical patent/WO2005044151A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/442—Intervertebral or spinal discs, e.g. resilient
    • A61F2/4425—Intervertebral or spinal discs, e.g. resilient made of articulated components
    • 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
    • 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
    • A61F2002/302—Three-dimensional shapes toroidal, e.g. rings
    • 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
    • A61F2002/30354—Cylindrically-shaped protrusion and recess, e.g. cylinder of circular basis
    • 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
    • A61F2002/30364—Rotation about the common longitudinal 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
    • A61F2002/30329—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
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30589—Sealing means
    • 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
    • A61F2002/30667—Features concerning an interaction with the environment or a particular use of the prosthesis
    • A61F2002/30682—Means for preventing migration of particles released by the joint, e.g. wear debris or cement particles
    • 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
    • A61F2002/30667—Features concerning an interaction with the environment or a particular use of the prosthesis
    • A61F2002/30682—Means for preventing migration of particles released by the joint, e.g. wear debris or cement particles
    • A61F2002/30685—Means for reducing or preventing the generation of wear particulates
    • 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
    • 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
    • A61F2230/0065—Three-dimensional shapes toroidal, e.g. ring-shaped, doughnut-shaped
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005—The prosthesis being constructed from a particular material
    • A61F2310/00011—Metals or alloys
    • A61F2310/00017—Iron- or Fe-based alloys, e.g. stainless steel
    • 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
    • A61F2310/00005—The prosthesis being constructed from a particular material
    • A61F2310/00011—Metals or alloys
    • A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00389—The prosthesis being coated or covered with a particular material
    • A61F2310/00592—Coating or prosthesis-covering structure made of ceramics or of ceramic-like compounds
    • A61F2310/00796—Coating or prosthesis-covering structure made of a phosphorus-containing compound, e.g. hydroxy(l)apatite

Definitions

  • Implant to be inserted between the vertebral body
  • the invention relates to an implant for insertion between the vertebral body, in particular the vertebral body of the cervical spine.
  • Implants for insertion between vertebral bodies as placeholders for vertebrae, vertebral parts or intervertebral discs removed from the spine are known from practice and are described, for example, in DE 44 23 257 AI or DE 101 16 412 Cl. These known implants serve to fuse adjacent vertebral bodies in order to stabilize the spine when the natural stability due to degenerative or traumatic diseases is no longer present. This fusion of adjacent vertebral bodies, however, requires stiffening of the spine in the fused one Section that limits the overall mobility of the spine. With regard to the use of the known implants, it is obvious that their construction and the resulting dimensions mean that use in the area of the cervical spine is excluded.
  • the invention is therefore based on the object of designing an implant of the type mentioned at the outset in such a way that one after the implantation natural mobility of the 15 adjacent vertebrae relative to each other is given.
  • a blind hole is formed in a first implant plate intended for contact with one vertebral body, that in a second implant plate intended for contact with the other vertebral body the blind hole to be inserted is formed, and that of the two base surfaces of the blind hole base and the end of the pin end which are intended for contact, a base surface, preferably convex, is curved and the other base surface is preferably designed to be flat.
  • the advantage is achieved that the -3-0- -I-mpl-an-ta-t — e-inen - very — easy-to-fit-ba-u - bes- i-tz-t - nd - can be provided in small dimensions that are also suitable for the cervical spine, the pin being inserted into the blind hole displacing the two implant plates is prevented by a form fit, while the two base surfaces with different curvature, in particular with different radii of curvature, which allow rolling 5, enable a tilting movement which enables the two adjacent vertebral bodies to tilt towards one another.
  • the pin and the blind hole are circular in cross section.
  • This design has the great advantage that not only the tilting movements that are possible with a natural spine are made possible by the implant, but also a rotational movement about the longitudinal axis of the pin or the blind hole is released, in an unhindered superposition with the Tilting movement, so that a movement possibility approximating the natural movement sequence is provided as a result.
  • the side wall of the blind hole is formed by a plastic ring which functions as a sliding ring, since an optimized one with regard to the low wear
  • the plastic ring can also take on the function of a seal in order to prevent or suppress the ingrowth of body tissue, in order to increase the mobility inherent in the implant over a long period of time
  • first implant plate and / or the second implant plate is made of titanium or surgical steel.
  • a permanent anchoring of the implant relative to the vertebral body is provided by the fact that a tooth is formed on the surface of the first implant plate and / or the second implant plate facing the vertebral body. It is preferred that the tooth is provided several times in an embodiment as a rim-side rim, since a firm connection to the vertebral body is achieved in a simple manner, which prevents both a translational and a rotational adjustment of the implant plate relative to the vertebral body.
  • the implant is preferably designed so that the surface facing the vertebral body and that of the other implant plate face at least one of the implant plates Surface inclined to each other.
  • This implant plate a wedge shape, which prevents a coaxial alignment of the vertebral bodies from being forced by the implantation. It has proven to be expedient if the angle of inclination is in the range from 2 ° to 30 °, preferably in the range from 5 ° to 15 °, and also implant plates with different ones
  • Tilt angles can be provided, which can be easily supplemented with the other implant plate to the finished implant.
  • the simplified handling of the implant during the operation serves that receptacles for an operating instrument are formed in the periphery of the first implant plate and the second implant plate. 5
  • the improvement of the mobility of the first implant plate compared to the second implant plate is that the outer surface of the pin is barrel-shaped, so that the pin lies in line contact 10 the blind hole without hindrance to the tilting movement.
  • the length of the pin is dimensioned such that when the maximum tilt position is reached, the mutually facing 15 surfaces of the first implant plate and the second implant plate come to rest on one side, that is to say on the one hand an additional support and on the other hand, a limitation of the tilt angle is provided by means of a stop.
  • at least one of the implant plates is coated with calcium phosphate or hydroxyapatite.
  • 1 is a perspective view of the isolated -3O implant
  • FIG. 2 is a perspective view of the back of the implant of FIG. 1, 3 shows an exploded view of the implant from FIG. 1,
  • FIG. 4 shows an exploded view of the implant from FIG. 1 in a side view
  • FIG. 8 shows a side view of the implant, shown partly in section, in a first boundary division with respect to the tilt angle
  • FIG. 9 shows a representation of the implant corresponding to FIG. 8 in the middle position
  • FIG. 10 shows a representation corresponding to FIG. 8 in the limit position which is different with respect to the tilt angle
  • an implant 1 which serves for insertion between the vertebral body, in particular the cervical spine, as a replacement for partially or completely removed intervertebral discs.
  • This implant 1 consists of a first implant plate 2 intended for bearing against one vertebral body and a second implant plate intended for bearing against the other vertebral body Implant plate 3, a blind hole 4 being assigned to the first implant plate 2 and a pin 5 to be inserted into the blind hole 4 being assigned to the second implant plate 3.
  • one base surface is convexly curved and the other base surface is designed to be flat, so that as a result the first implant plate 2 can perform a tilting movement relative to the second implant plate 3. Furthermore, since the ten pin 5 and the blind hole 4 are circular in cross section, the two implant plates 2, 3 can be rotated relative to one another, so that this implant 1 simulates the natural movement of the cervical spine
  • the first implant plate 2 and the second implant plate 3 are made of titanium or alternatively of surgical steel and with calcium phosphate or hydroxyapatite
  • Teeth 9 are configured as a rim-side rim, which serve to permanently fix the first implant plate 2 and the second implant plate 3 relative to the respectively associated vertebral bodies.
  • the first implant plate 2 having the blind hole 4 the surface facing the vertebral body and the surface facing the second implant plate 3 run inclined to one another with an angle of inclination which is in the range from 2 ° to 30 °, preferably in the range from 5 ° to 15 °.
  • receptacles 10 for a surgical instrument are formed (FIGS. 5, 6).
  • the length of the pin 5 can be dimensioned such that when the maximum tilt position is reached, the surfaces of the first implant plate 2 and the second implant plate 3 facing one another come to rest on one side.

Abstract

La présente invention concerne un implant à placer entre des corps vertébraux de la colonne cervicale. Un trou borgne (4) est ménagé dans une première plaque d'implant (2) conçue pour être placée sur un corps vertébral et une saillie (5) à insérer dans ledit trou borgne est ménagée sur une seconde plaque d'implant (3) conçue pour être placée sur l'autre corps vertébral. Une des deux surfaces de base du fond du trou borgne (6) et de l'extrémité de la saillie (7), conçues pour venir en contact l'une avec l'autre, est courbée de manière convexe et l'autre est de conception plane.
PCT/DE2004/002445 2003-11-03 2004-11-03 Implant a placer entre des corps vertebraux WO2005044151A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10351107 2003-11-03
DE10351107.5 2003-11-03

Publications (1)

Publication Number Publication Date
WO2005044151A1 true WO2005044151A1 (fr) 2005-05-19

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ID=34559287

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PCT/DE2004/002445 WO2005044151A1 (fr) 2003-11-03 2004-11-03 Implant a placer entre des corps vertebraux

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WO (1) WO2005044151A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007003439A2 (fr) * 2005-07-06 2007-01-11 Copf Franz Jun Dispositif de preparation pour preparation de compartiment de disque intervertebral
WO2008070821A1 (fr) * 2006-12-07 2008-06-12 Warsaw Orthopedic, Inc. Systèmes d'implants vertébraux et leurs procédés d'utilisation
WO2009105884A1 (fr) * 2008-02-28 2009-09-03 Kinetic Spine Technologies Inc. Prothèse de disque intervertébral présentant une structure de bille et d’anneau
US8172902B2 (en) 2008-07-17 2012-05-08 Spinemedica, Llc Spinal interbody spacers
US9700425B1 (en) 2011-03-20 2017-07-11 Nuvasive, Inc. Vertebral body replacement and insertion methods
CN111419485A (zh) * 2018-07-27 2020-07-17 深圳清华大学研究院 一种椎间运动保留装置及其定位式植入器械和植入方法

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FR2737656A1 (fr) * 1995-08-09 1997-02-14 Jbs Sa Dispositif d'impacteur pour la mise en place d'une prothese pour disques intervertebraux
US5683465A (en) * 1996-03-18 1997-11-04 Shinn; Gary Lee Artificial intervertebral disk prosthesis
US5899941A (en) * 1997-12-09 1999-05-04 Chubu Bearing Kabushiki Kaisha Artificial intervertebral disk
US20030135278A1 (en) * 2002-01-17 2003-07-17 Concept Matrix, Llc Intervertebral disk prosthesis

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Publication number Priority date Publication date Assignee Title
FR2737656A1 (fr) * 1995-08-09 1997-02-14 Jbs Sa Dispositif d'impacteur pour la mise en place d'une prothese pour disques intervertebraux
US5683465A (en) * 1996-03-18 1997-11-04 Shinn; Gary Lee Artificial intervertebral disk prosthesis
US5899941A (en) * 1997-12-09 1999-05-04 Chubu Bearing Kabushiki Kaisha Artificial intervertebral disk
US20030135278A1 (en) * 2002-01-17 2003-07-17 Concept Matrix, Llc Intervertebral disk prosthesis

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007003439A2 (fr) * 2005-07-06 2007-01-11 Copf Franz Jun Dispositif de preparation pour preparation de compartiment de disque intervertebral
WO2007003439A3 (fr) * 2005-07-06 2007-08-23 Franz Jun Copf Dispositif de preparation pour preparation de compartiment de disque intervertebral
US8366718B2 (en) 2005-07-06 2013-02-05 Copf Jr Franz Preparation device for preparing an intervertebral disc compartment
WO2008070821A1 (fr) * 2006-12-07 2008-06-12 Warsaw Orthopedic, Inc. Systèmes d'implants vertébraux et leurs procédés d'utilisation
WO2009105884A1 (fr) * 2008-02-28 2009-09-03 Kinetic Spine Technologies Inc. Prothèse de disque intervertébral présentant une structure de bille et d’anneau
US8172902B2 (en) 2008-07-17 2012-05-08 Spinemedica, Llc Spinal interbody spacers
US9700425B1 (en) 2011-03-20 2017-07-11 Nuvasive, Inc. Vertebral body replacement and insertion methods
US10485672B2 (en) 2011-03-20 2019-11-26 Nuvasive, Inc. Vertebral body replacement and insertion methods
US11389301B2 (en) 2011-03-20 2022-07-19 Nuvasive, Inc. Vertebral body replacement and insertion methods
CN111419485A (zh) * 2018-07-27 2020-07-17 深圳清华大学研究院 一种椎间运动保留装置及其定位式植入器械和植入方法

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