EP1610731A1 - Prothese articulaire de disque intervertebral cervical - Google Patents

Prothese articulaire de disque intervertebral cervical

Info

Publication number
EP1610731A1
EP1610731A1 EP04711582A EP04711582A EP1610731A1 EP 1610731 A1 EP1610731 A1 EP 1610731A1 EP 04711582 A EP04711582 A EP 04711582A EP 04711582 A EP04711582 A EP 04711582A EP 1610731 A1 EP1610731 A1 EP 1610731A1
Authority
EP
European Patent Office
Prior art keywords
boundary
intervertebral disc
edge
connecting surface
disc prosthesis
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Withdrawn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
EP04711582A
Other languages
German (de)
English (en)
Inventor
Helmut D. Link
Arnold Keller
Paul C. Scoliosis and Spine Center MCAFEE
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.)
Cervitech Inc
Original Assignee
Cervitech Inc
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 Cervitech Inc filed Critical Cervitech Inc
Priority to EP04711582A priority Critical patent/EP1610731A1/fr
Publication of EP1610731A1 publication Critical patent/EP1610731A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • 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
    • 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
    • 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
    • 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
    • A61B17/1659—Surgical rasps, files, planes, or scrapers
    • 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
    • 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
    • A61F2002/3011—Cross-sections or two-dimensional shapes
    • A61F2002/30138—Convex polygonal shapes
    • A61F2002/30156—Convex polygonal shapes triangular
    • 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
    • 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
    • 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
    • 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
    • A61F2002/30891—Plurality of protrusions
    • A61F2002/30892—Plurality of protrusions parallel
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30904—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
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/442—Intervertebral or spinal discs, e.g. resilient
    • A61F2/4425—Intervertebral or spinal discs, e.g. resilient made of articulated components
    • A61F2002/443—Intervertebral or spinal discs, e.g. resilient made of articulated components having two transversal endplates and at least one intermediate component
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0017—Angular shapes
    • A61F2230/0023—Angular shapes triangular
    • 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

Definitions

  • Articulated endoprostheses for replacing an intervertebral disc of the cervical spine are known (FR-A-2 718 635, EP-B-699 426, WO 03/63727, WO 02/11650, EP-A-1166725, EP-A-820740) , which consist of two cover plates and a joint core.
  • the cover plates which are arranged approximately parallel on both sides of the core, have connecting surfaces which are intended for connection to the adjacent vertebral bodies.
  • the cranial vertebral cover plates, which are to be connected to a lower prosthesis cover plate have an approximately rectangular shape. They are roughly flat and delimited laterally by serrations.
  • the caudal vertebral cover plates have cow-horn-shaped extensions on the ventral edge, the so-called uncovertebral areas. These have to be removed before inserting the prosthesis.
  • the connecting surfaces of the known prostheses mentioned are limited in a circle. Since the end plates of the vertebral bodies have the shape of a rectangle, the width of which is considerably larger than its dimension in the anteroposterior direction, they do not use the size of the naturally given surfaces for the force transmission. As a result, between the vertebral Persistent contact surfaces and the connecting surfaces of the prosthesis on higher forces than would be the case with better use of space.
  • cages serve to immovably connect adjacent vertebral bodies so that they can then grow together immediately. Your space requirement does not matter. In many cases it is sufficient to use a cage that only occupies a small part of the width of the vertebral body. In other cases, the use of cages has become known which intentionally or unintentionally reach beyond the intervertebral space.
  • a look at the prior art of the cages (EP-B-179695, WO 97/20526, US-A-2001/0016774, WO 01/91686, WO 90/00037) is therefore unable to provide any suggestions for solving the problem of a practical one Arrangement of articulated intervertebral prostheses.
  • the object of the invention is to create an articulated endoprosthesis for replacing the intervertebral disc in the cervical region of the spine, which enables the best possible use of space. Since the vertebral body connection surfaces are roughly rectangular, a roughly rectangular or oval design of the connecting surfaces of the prosthesis appears to be appropriate at first glance. However, the invention has recognized that better and safer results are achieved with a prosthesis in which at least one of the two connecting surfaces, but preferably both connecting surfaces are designed according to claim 1
  • the surgeon must keep a safe distance from the spinal canal when working from the ventral side on the vertebral abutment surfaces of the prosthesis. This is especially true when machining the dorsolateral corners of the contact surfaces, where the visual control is more difficult than in the central dorsal area. This leads to the fact that bone material can remain in the dorsolateral corners of the vertebral cover plates, which protrudes beyond the machined contact surface of the vertebral body. If a rectangular prosthesis were to be used, it would not be possible to insert it completely into the intervertebral space, because its dorsal corners strike the bone material that remains. If the prosthesis corners are rounded, the conditions are not much more favorable.
  • the prosthesis then protrudes ventrally over the vertebral bodies and may cause irritation to the esophagus or the large blood vessels located there.
  • the withdrawal of the prosthesis connecting surfaces according to the invention saves the dorsolateral corners and thereby avoids this disadvantage.
  • the area size of the connecting areas in their anterolateral areas, however, remains unchanged.
  • the measure according to the invention can best be described by referring to the distance between the boundary of the connecting surface and the corner points of an imaginary rectangle that circumscribes the cover plate. It is assumed that the sides of the rectangle that touch the circumferential contour of the cover plate run parallel to the sagittal plane or perpendicular to it. In this context, only those parts are considered as cover plates that are suitable for vortex space are provided. If, for example, a ventral flange is connected to the cover plates, which lies in front of the ventral end face of the vertebral body in the implanted state, this is not counted as a cover plate in the construction of the imaginary rectangle.
  • the minimum distance of the boundary of the connection surface from the dorsal corners of the imaginary rectangle is preferably at least 1.3 times, more preferably at least 1.5 times, more preferably at least twice as large as the minimum distance from the ventral corners. It is preferably assumed that the width of the cover plate is greater than its anteroposterior dimension, generally by a factor of 1.1 to 1.6, preferably by a factor of 1.2 to 1.4.
  • the connecting surfaces of both prosthesis cover plates are designed according to the invention. However, there are cases in which this is sufficient for one of the two connecting surfaces, namely in particular for the lower one.
  • the edge of the prosthesis cover plate projects beyond the dorsolateral boundary of the associated connecting surface.
  • the cover plate, the prosthesis core and the connection or sliding surfaces interacting on the cover plates and the prosthesis core can have an optimal size despite the reduced extent of the connection surface.
  • These parts can thus be designed, for example, approximately to a rectangular shape with rounded corners.
  • transition between the dorsolaterally withdrawn boundary of the connecting surface to the further protruding edge takes place in the form of an inclined transition surface.
  • This can connect directly to the connection surface.
  • the transition surface may also participate in the power transmission, namely in contact with the bone parts that have remained in the dorsolateral position and protrude beyond the machined contact surface of the vertebral body.
  • the cross-section of the transition surface can be straight, convexly rounded or stepped.
  • dorsolateral denotes the transition area from the lateral to the dorsal aspect of the cover plate.
  • the withdrawal of the connecting surface according to the invention is therefore not limited to an only dorsal or only a lateral region, but rather comprises sections of both regions.
  • the term withdrawal refers to a standard outline contour of the cover plate, which is approximately symmetrical at the front and rear to the central transverse axis. Compared to this standard outline contour, the boundary of the connecting surface has been reduced. If in doubt, the standard outline contour is the anterolateral contour of the cover plate which is mirrored to the rear about the central transverse axis. If the cover plate has an edge protruding beyond the boundary of the connecting surface, which does not protrude further than the standard outline contour, the withdrawal of the boundary of the connecting surface can also be related to the contour of this edge.
  • the section in which the boundary of the connecting surface is removed generally extends over at least one third of the anteroposterior dimension of the connecting surface. Viewed from the dorsal side, this section generally extends on both sides in each case over at least a quarter of the width of the connecting surface. It may be expedient if the connecting surface is located in a central section of the dorsal plate edge is less or less withdrawn than in the dorsolateral area. This middle section expediently extends over at least a quarter of the width dimension of the connecting surface.
  • the boundary of the connecting surface is preferably not removed. Minor rounding of the edges of the connecting surface is not taken into account.
  • the removal of the connection surface limitation is expediently greatest where it is closest to the dorsal corner of the imaginary, circumscribing rectangle. This results in an approximately straight course for the reduced boundary of the connecting surface.
  • the height difference should be at least about 1 mm.
  • FIGS. 1 and 2 perspective views of the entire prosthesis
  • FIGS. 3 to 4 a views of the prosthesis from dorsal, lateral and caudal
  • FIGS. 6 to 8 different profiles of the transition surface
  • FIG. 9 a plan view of an alternative embodiment
  • FIG. 10 a larger representation of the connecting surface and the edge contour.
  • the prosthesis shown in FIGS. 1 to 8 consists of two cover plates 1 and a prosthesis core 2.
  • the inside of one of the two cover plates can be provided as a holder for the prosthesis core 2, while the other cover plate forms, for example, a spherical sliding surface 3 with the prosthesis core.
  • each cover plate At the ventral edge of each cover plate, a flange 4 is provided, the dorsal surface 5 of which is intended to rest on the ventral side of a vertebral body.
  • the flange can have fastening means, for example screw holes 6.
  • Each prosthesis cover plate has a connection surface 10 for abutment against the associated vertebral body cover plate or on the contact surface created by machining the vertebral body, which runs approximately parallel to the main extension plane of the cover plate. It is essentially flat, but can also have a slight curvature. It is equipped with teeth 13 and / or other means for securely connecting the bone, for example with a bioactive coating.
  • Each cover plate is surrounded by an approximately perpendicular to the connecting surface 10 circumferential surface 14, which is referred to in the present context as an edge.
  • the edge 14 defines the circumferential contour of the cover plate, which has an elongated shape, which can be described as oval or as rectangular with rounded corners. It is also designated by reference number 14 in FIG. 10.
  • the prosthesis core 2 has the same circumferential contour.
  • the anteroposterior depth dimension 11 of the cover plates 1 is smaller than its width dimension 12, namely, for example, in a ratio of three to four.
  • a proven example has a depth of 15 mm and a width of 20 mm.
  • the cover plates 1 are preferably made of metal and the core 2 made of polyethylene.
  • the cover plate 1 or the contour of the edge 14 has a ventral side 15, a dorsal side 16 and lateral sides 17 and 18.
  • the anteroposterior depth dimension 11 and the width dimension 12, which are indicated in FIG. 10 as the sides of an imaginary rectangle 21 are that describes the cover plate or the contour 14 of the edge tangentially.
  • the boundary of the connecting surface 10 follows the contour of the edge 14. Exact correspondence is not important, since there may be slight deviations in the form of roundings or bevels. Their width is generally less than 3% of the width dimension 12.
  • a section 23 of the boundary 24 of the connecting surface 10 does not follow the contour 14 but is set back relative to it.
  • the greatest amount of recess in the top view is between about 2 and 5 mm, generally on the order of 2.5 to 3.5 mm.
  • the minimum distance 28 from the corner 29 of the circumscribing rectangle 21 is greater than 13% and preferably greater than 15% and preferably greater than 18% of the width dimension 12. In the exemplary embodiment it is a little above 20% of this width.
  • the limitation 24 is withdrawn with respect to the contour 14 because an oblique transition surface 25 is provided between the limitation 24 and the edge. Since the transition surface is raised relative to the plane of the connecting surface, a space is created underneath for receiving those bone parts that remain in the dorsolateral area when the vertebral end surface is processed. It goes without saying that this room must have an appropriate height for this. It should be at least 1 mm at the location of the greatest height difference between the connecting surface and the edge 14.
  • the transition surface 25 can, for example, be convexly rounded (FIG. 6) or straight profiled (FIG. 7). It can also be grooved in stages (Fig. 8).
  • the section 23, in which the boundary 24 is withdrawn with respect to the contour 25 of the edge 14, takes up approximately two thirds of the depth dimension 11 in a lateral view of the illustrated example and is preferably not less than one third of the same.
  • the contour of the cover plate does not deviate from the boundary of the connection surface. Minor rounding of the edges is not taken into account.
  • the withdrawal of the connection surface limitation 24 weakens towards the center.
  • the edge 14 practically does not project beyond the boundary 24.
  • the length of this middle section is preferably between one tenth and one third of the width dimension 12.
  • the section 23 of the boundary 24 of the connecting surface 10 which is withdrawn in the dorsolateral region has an approximately straight course. If you compare it with a straight line that connects the end points of this section with each other, it hardly deviates from it. In any case, the deviation is well below 10% of the length of this route.
  • the end points of the route lie at those points at which the deviation of the boundary 24 of the connecting surface from the circumferential contour 14 exceeds the dimension of the edge roundings which are otherwise provided.
  • the deviation of the boundary 24 in the dorsolateral area from the peripheral contour 14 is approximately 10% of the cover plate width 12 and should not be less than 5%.
  • FIG. 9 which differs from that of FIGS. 1 to 8 in that the edge 14 does not protrude beyond the limitation of the connection surface, also shows a reduction in the delimitation of the connection surface in the dorsolateral region corresponding to the above explanations.
  • the description of the exemplary embodiment of FIGS. 1 to 8 and 10 applies correspondingly to this exemplary embodiment, the course of the delimitation of the connecting surface in the dorsolateral region not being compared with the circumferential contour 14 but with the course 14 ′ of the mirrored rearward about the central transverse axis 21 anterolateral cover plate circumference contour 14.
  • FIG. 10 illustrates the different course of the boundary of the connecting surface in the antero-and dorsolateral region by reference to the corners of the imaginary rectangle 21. It can be seen that the minimum distance 28 of the dorsal corner point 29 from the boundary line 24 is almost three times as large as the corresponding minimum distance 26 of the front corner point 27. It should normally be at least 1.5 times as long.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Neurology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • Transplantation (AREA)
  • Dentistry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Prostheses (AREA)

Abstract

L'invention concerne une prothèse de disque intervertébral cervical comportant une plaque de couverture (1) présentant une surface (10) destinée à la connexion avec une vertèbre, ladite surface étant plus large que profonde. La délimitation (24) de la surface de connexion (10) dans la zone dorsolatérale est en retrait par rapport à la délimitation (14) dans la zone antérolatérale. Ladite délimitation en retrait (24) de la surface de connexion (10) peut être reliée à un bord saillant (14) par l'intermédiaire d'un arrondi ou d'un biseau (25).
EP04711582A 2003-04-07 2004-02-17 Prothese articulaire de disque intervertebral cervical Withdrawn EP1610731A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04711582A EP1610731A1 (fr) 2003-04-07 2004-02-17 Prothese articulaire de disque intervertebral cervical

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP03008127 2003-04-07
EP04711582A EP1610731A1 (fr) 2003-04-07 2004-02-17 Prothese articulaire de disque intervertebral cervical
PCT/EP2004/001498 WO2004089259A1 (fr) 2003-04-07 2004-02-17 Prothese articulaire de disque intervertebral cervical

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EP1610731A1 true EP1610731A1 (fr) 2006-01-04

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EP04707931A Withdrawn EP1610730A1 (fr) 2003-04-07 2004-02-04 Prothese articulaire intervertebrale pour la colonne cervicale
EP04711582A Withdrawn EP1610731A1 (fr) 2003-04-07 2004-02-17 Prothese articulaire de disque intervertebral cervical

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EP04707931A Withdrawn EP1610730A1 (fr) 2003-04-07 2004-02-04 Prothese articulaire intervertebrale pour la colonne cervicale

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US (1) US20060195189A1 (fr)
EP (2) EP1610730A1 (fr)
JP (2) JP2006521845A (fr)
KR (2) KR100754570B1 (fr)
CN (2) CN1802133A (fr)
AR (2) AR048119A1 (fr)
AU (2) AU2004228904A1 (fr)
BR (1) BRPI0409091A (fr)
CA (2) CA2519925A1 (fr)
IL (1) IL170969A (fr)
MX (2) MXPA05010766A (fr)
NZ (1) NZ542551A (fr)
PL (2) PL378751A1 (fr)
RU (2) RU2325875C2 (fr)
WO (2) WO2004089258A1 (fr)
ZA (2) ZA200508010B (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR038680A1 (es) 2002-02-19 2005-01-26 Synthes Ag Implante intervertebral
US7527629B2 (en) 2002-03-12 2009-05-05 Cervitech, Inc. Instrument set for fitting an intervertebral joint prosthesis
ES2358586T3 (es) 2003-02-06 2011-05-12 Synthes Gmbh Implante intervertebral.
US7819903B2 (en) 2003-03-31 2010-10-26 Depuy Spine, Inc. Spinal fixation plate
EP1532950B1 (fr) 2003-11-18 2008-03-26 Zimmer GmbH Prothèse de disque intervertébral
EP1694215B1 (fr) * 2003-12-10 2010-01-13 Cervitech, Inc. Instrument d'insertion d'une prothese articulaire intervertebrale
US9237958B2 (en) 2004-06-30 2016-01-19 Synergy Disc Replacement Inc. Joint prostheses
US8172904B2 (en) 2004-06-30 2012-05-08 Synergy Disc Replacement, Inc. Artificial spinal disc
AU2005260554B2 (en) 2004-06-30 2010-10-28 Synergy Disc Replacement, Inc. Artificial spinal disc
US20060100548A1 (en) * 2004-11-09 2006-05-11 Sdgi Holdings, Inc. Ultrasonic implant revision instrument
AU2005314224B2 (en) 2004-12-06 2009-10-08 Axiomed Spine Corporation Method for replacing a spinal disc
EP1736120A1 (fr) 2005-06-22 2006-12-27 Cervitech, Inc. Prothèse intervertébrale avec saillies de fixation auto-pénétrantes
US20100305704A1 (en) 2006-02-27 2010-12-02 Synthes Gmbh Intervertebral implant with fixation geometry
EP2211785B1 (fr) 2007-10-25 2016-01-27 Synergy Disc Replacement, Inc. Systèmes de remplacement de disque vertébral
JP2011502708A (ja) 2007-11-16 2011-01-27 ジンテス ゲゼルシャフト ミット ベシュレンクテル ハフツング 低輪郭の椎間インプラント
FR2931657B1 (fr) * 2008-05-27 2011-12-16 Medicrea International Implant intervertebral destine a permettre d'immobiliser une vertebre par rapport a une autre
KR20110081351A (ko) 2008-11-07 2011-07-13 신세스 게엠바하 척추 체간 스페이서 및 결합된 플레이트 조립체
US9241809B2 (en) 2010-12-21 2016-01-26 DePuy Synthes Products, Inc. Intervertebral implants, systems, and methods of use
EP2654626B1 (fr) 2010-12-21 2016-02-24 Synthes GmbH Implants intervertébraux et systèmes
RU2465870C1 (ru) * 2011-02-28 2012-11-10 Общество с ограниченной ответственностью "Эндокарбон" Протез межпозвоночного диска
US9867718B2 (en) 2014-10-22 2018-01-16 DePuy Synthes Products, Inc. Intervertebral implants, systems, and methods of use
CN105726172B (zh) * 2016-04-19 2018-08-10 西安交通大学第二附属医院 一种适用于下颈椎的人工颈椎关节

Family Cites Families (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8807485U1 (fr) * 1988-06-06 1989-08-10 Mecron Medizinische Produkte Gmbh, 1000 Berlin, De
CA1333209C (fr) * 1988-06-28 1994-11-29 Gary Karlin Michelson Implants artificiels pour la soudure osseuse intervertebrale
US5425773A (en) * 1992-01-06 1995-06-20 Danek Medical, Inc. Intervertebral disk arthroplasty device
DE4208116C2 (de) * 1992-03-13 1995-08-03 Link Waldemar Gmbh Co Bandscheibenendoprothese
DE4213771C1 (de) * 1992-04-27 1993-09-30 Eska Medical Gmbh & Co Bandscheibenendoprothese
FR2694882B1 (fr) * 1992-08-24 1994-10-21 Sofamor Prothèse discale intervertébrale.
DE4423826B4 (de) * 1993-07-07 2007-01-04 Pentax Corp. Keramische Wirbelprothese
US5514180A (en) * 1994-01-14 1996-05-07 Heggeness; Michael H. Prosthetic intervertebral devices
FR2718635B1 (fr) * 1994-04-15 1996-07-05 Axcyl Medical Prothèse cervicale.
KR100415064B1 (ko) * 1995-10-20 2005-04-06 신테스 아게 츄어 추골간임플랜트
WO1997020526A1 (fr) * 1995-12-08 1997-06-12 Bray Robert S Jr Dispositif de stabilisation anterieure
FR2747034B1 (fr) * 1996-04-03 1998-06-19 Scient X Systeme de contention et de fusion intersomatique
US5895428A (en) * 1996-11-01 1999-04-20 Berry; Don Load bearing spinal joint implant
EP1769777A1 (fr) * 1997-04-25 2007-04-04 Stryker France S.A. Implants intersomatiques en deux parties
KR20010022695A (ko) * 1997-08-04 2001-03-26 고든 마야 로버츠 앤드 토마스 넘버 1 엘엘씨 다축 추골간 인공기관
US6241771B1 (en) * 1997-08-13 2001-06-05 Cambridge Scientific, Inc. Resorbable interbody spinal fusion devices
US20010016773A1 (en) * 1998-10-15 2001-08-23 Hassan Serhan Spinal disc
US6083228A (en) * 1998-06-09 2000-07-04 Michelson; Gary K. Device and method for preparing a space between adjacent vertebrae to receive an insert
US6296664B1 (en) * 1998-06-17 2001-10-02 Surgical Dynamics, Inc. Artificial intervertebral disc
US6682561B2 (en) * 1998-06-18 2004-01-27 Pioneer Laboratories, Inc. Spinal fixation system
WO2000023014A1 (fr) * 1998-10-20 2000-04-27 Synthes Ag Chur Cage d'arthrodese spinale regulatrice de contraintes pour chirurgie de soudure
US6113637A (en) * 1998-10-22 2000-09-05 Sofamor Danek Holdings, Inc. Artificial intervertebral joint permitting translational and rotational motion
FR2787017B1 (fr) * 1998-12-11 2001-04-27 Dimso Sa Prothese de disque intervertebral a comportement mecanique ameliore
US6113638A (en) * 1999-02-26 2000-09-05 Williams; Lytton A. Method and apparatus for intervertebral implant anchorage
NZ516410A (en) * 1999-07-02 2004-12-24 Spine Solutions Inc Intervertebral implant
WO2002009626A1 (fr) * 1999-07-26 2002-02-07 Advanced Prosthetic Technologies, Inc. Prothese chirurgicale vertebrale amelioree
US6432106B1 (en) * 1999-11-24 2002-08-13 Depuy Acromed, Inc. Anterior lumbar interbody fusion cage with locking plate
US6592624B1 (en) * 1999-11-24 2003-07-15 Depuy Acromed, Inc. Prosthetic implant element
WO2001049220A1 (fr) * 1999-12-30 2001-07-12 Osteotech, Inc. Implants intervertebraux
US6709458B2 (en) * 2000-02-04 2004-03-23 Gary Karlin Michelson Expandable push-in arcuate interbody spinal fusion implant with tapered configuration during insertion
FR2805733B1 (fr) * 2000-03-03 2002-06-07 Scient X Prothese discale pour vertebre cervicale
FR2805985B1 (fr) * 2000-03-10 2003-02-07 Eurosurgical Prothese de disque intervertebral
FR2808673B1 (fr) * 2000-05-11 2002-12-06 Scient X Implant intersomatique anterieur lombaire
AU2001266623A1 (en) * 2000-05-30 2001-12-11 Paul S. Lin Implant for placement between cervical vertebrae
US6610093B1 (en) * 2000-07-28 2003-08-26 Perumala Corporation Method and apparatus for stabilizing adjacent vertebrae
EP1363565A2 (fr) * 2000-08-08 2003-11-26 SDGI Holdings, Inc. Prothese d'articulation implantable
US6723128B2 (en) * 2000-10-17 2004-04-20 Chang Jong Uk Prosthetic device for correcting deformity of spine
US6666891B2 (en) * 2000-11-13 2003-12-23 Frank H. Boehm, Jr. Device and method for lumbar interbody fusion
US6773460B2 (en) * 2000-12-05 2004-08-10 Roger P. Jackson Anterior variable expandable fusion cage
US7169182B2 (en) * 2001-07-16 2007-01-30 Spinecore, Inc. Implanting an artificial intervertebral disc
US7604664B2 (en) * 2001-07-16 2009-10-20 Spinecore, Inc. Spinal baseplates with ball joint coupling and a retaining member
DE10116412C1 (de) * 2001-04-02 2003-01-16 Ulrich Gmbh & Co Kg Implantat zum Einsetzen zwischen Wirbelkörper der Wirbelsäule
US6648917B2 (en) * 2001-10-17 2003-11-18 Medicinelodge, Inc. Adjustable bone fusion implant and method
US7238203B2 (en) * 2001-12-12 2007-07-03 Vita Special Purpose Corporation Bioactive spinal implants and method of manufacture thereof
US6740118B2 (en) * 2002-01-09 2004-05-25 Sdgi Holdings, Inc. Intervertebral prosthetic joint
US6682563B2 (en) * 2002-03-04 2004-01-27 Michael S. Scharf Spinal fixation device
RU2303422C2 (ru) * 2002-03-12 2007-07-27 Сервитек Инк. Межпозвонковый протез и система межпозвонковых протезов, в частности для шейного отдела позвоночника
AU2003228391A1 (en) * 2002-03-30 2003-10-20 Cool Brace Intervertebral device and method of use
US7179294B2 (en) * 2002-04-25 2007-02-20 Warsaw Orthopedic, Inc. Articular disc prosthesis and method for implanting the same
US6770095B2 (en) * 2002-06-18 2004-08-03 Depuy Acroned, Inc. Intervertebral disc
DE10242329B4 (de) * 2002-09-12 2005-03-17 Biedermann Motech Gmbh Bandscheibenprothese
US6899735B2 (en) * 2002-10-02 2005-05-31 Sdgi Holdings, Inc. Modular intervertebral prosthesis system
US7156876B2 (en) * 2002-10-09 2007-01-02 Depuy Acromed, Inc. Intervertebral motion disc having articulation and shock absorption
WO2004037067A2 (fr) * 2002-10-21 2004-05-06 3Hbfm, Llc Prothese de disque intervertebral
AR037168A1 (es) * 2002-10-30 2004-10-27 Carrasco Mauricio Rodolfo Implante para reemplazo vertebral y reestablecimiento de la normal curvatura espinal.
US6685742B1 (en) * 2002-11-12 2004-02-03 Roger P. Jackson Articulated anterior expandable spinal fusion cage system
EP1572042A4 (fr) * 2002-12-17 2010-12-08 Amedica Corp Prothese discale complete
US6908484B2 (en) * 2003-03-06 2005-06-21 Spinecore, Inc. Cervical disc replacement
US8012212B2 (en) * 2003-04-07 2011-09-06 Nuvasive, Inc. Cervical intervertebral disk prosthesis

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004089259A1 *

Also Published As

Publication number Publication date
IL170969A (en) 2010-12-30
JP2006521845A (ja) 2006-09-28
PL378751A1 (pl) 2006-05-15
KR100754570B1 (ko) 2007-09-05
MXPA05010768A (es) 2006-05-25
AU2004228908A1 (en) 2004-10-21
CN1771013A (zh) 2006-05-10
WO2004089259A1 (fr) 2004-10-21
CA2519925A1 (fr) 2004-10-21
RU2005134220A (ru) 2006-03-10
NZ542551A (en) 2010-04-30
AR048120A1 (es) 2006-04-05
AR048119A1 (es) 2006-04-05
AU2004228904A1 (en) 2004-10-21
US20060195189A1 (en) 2006-08-31
JP2006521848A (ja) 2006-09-28
RU2307624C2 (ru) 2007-10-10
WO2004089258A1 (fr) 2004-10-21
AU2004228908A2 (en) 2004-10-21
CA2519926A1 (fr) 2004-10-21
ZA200508062B (en) 2007-03-28
KR20060005358A (ko) 2006-01-17
JP4617294B2 (ja) 2011-01-19
KR101134264B1 (ko) 2012-04-12
AU2004228908B2 (en) 2010-01-21
BRPI0409091A (pt) 2006-04-11
MXPA05010766A (es) 2005-12-12
ZA200508010B (en) 2006-07-26
EP1610730A1 (fr) 2006-01-04
RU2005134216A (ru) 2006-06-10
PL378752A1 (pl) 2006-05-15
KR20060005357A (ko) 2006-01-17
CN100594855C (zh) 2010-03-24
RU2325875C2 (ru) 2008-06-10
CN1802133A (zh) 2006-07-12

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