IL147400A - Interbody spinal stabilisation cage - Google Patents

Interbody spinal stabilisation cage

Info

Publication number
IL147400A
IL147400A IL147400A IL14740001A IL147400A IL 147400 A IL147400 A IL 147400A IL 147400 A IL147400 A IL 147400A IL 14740001 A IL14740001 A IL 14740001A IL 147400 A IL147400 A IL 147400A
Authority
IL
Israel
Prior art keywords
anchoring means
cage
interbody cage
interbody
actuation
Prior art date
Application number
IL147400A
Original Assignee
Spinevision Sa
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 Spinevision Sa filed Critical Spinevision Sa
Publication of IL147400A publication Critical patent/IL147400A/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A61B17/025Joint distractors
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A61B17/0206Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors with antagonistic arms as supports for retractor elements
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • A61F2/447Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Pins or screws or threaded wires; nuts therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/442Intervertebral or spinal discs, e.g. resilient
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/28Bones
    • A61F2002/2835Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108Shapes
    • A61F2002/3011Cross-sections or two-dimensional shapes
    • A61F2002/30138Convex polygonal shapes
    • A61F2002/30143Convex polygonal shapes hexagonal
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108Shapes
    • A61F2002/3011Cross-sections or two-dimensional shapes
    • A61F2002/30138Convex polygonal shapes
    • A61F2002/30153Convex polygonal shapes rectangular
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108Shapes
    • A61F2002/30199Three-dimensional shapes
    • A61F2002/30261Three-dimensional shapes parallelepipedal
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The 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
    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30518Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements with possibility of relative movement between the prosthetic parts
    • A61F2002/30523Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements with possibility of relative movement between the prosthetic parts by means of meshing gear teeth
    • A61F2002/30525Worm gears
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The 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
    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30579Special structural features of bone or joint prostheses not otherwise provided for with mechanically expandable devices, e.g. fixation devices
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The 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
    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30593Special structural features of bone or joint prostheses not otherwise provided for hollow
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772Apertures or holes, e.g. of circular cross section
    • A61F2002/30777Oblong apertures
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772Apertures or holes, e.g. of circular cross section
    • A61F2002/30784Plurality of holes
    • A61F2002/30785Plurality of holes parallel
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772Apertures or holes, e.g. of circular cross section
    • A61F2002/30784Plurality of holes
    • A61F2002/30789Plurality of holes perpendicular with respect to each other
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/3094Designing or manufacturing processes
    • A61F2002/30968Sintering
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/46Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4637Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for connecting or disconnecting two parts of a prosthesis
    • A61F2002/4638Tools for performing screwing, e.g. nut or screwdrivers, or particular adaptations therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2220/00Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0017Angular shapes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0017Angular shapes
    • A61F2230/0019Angular shapes rectangular
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063Three-dimensional shapes
    • A61F2230/0082Three-dimensional shapes parallelepipedal
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005The prosthesis being constructed from a particular material
    • A61F2310/00011Metals or alloys
    • A61F2310/00035Other metals or alloys
    • A61F2310/00131Tantalum or Ta-based alloys
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005The prosthesis being constructed from a particular material
    • A61F2310/00161Carbon; Graphite
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005The prosthesis being constructed from a particular material
    • A61F2310/00179Ceramics or ceramic-like structures
    • A61F2310/00293Ceramics or ceramic-like structures containing a phosphorus-containing compound, e.g. apatite

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Neurology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Transplantation (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • Prostheses (AREA)
  • Surgical Instruments (AREA)
  • Golf Clubs (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Materials For Medical Uses (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

The invention concerns an interbody spinal stabilisation cage comprising a hollow central space (4) designed to be filled with bone fragments. The invention is characterised in that it comprises anchoring means (3) emerging on side surfaces (5, 5') linking it with the adjacent vertebrae, driven by at least driving means (2) emerging of a front surface (6), said anchoring means (3) comprising each at least a main knife edge (10).

Description

147400 J 453328 nw INTERBODY SPINAL STABILISATION CAGE SPINEVISION S.A.
C: 44502 INTERBODY SPINAL STABILISATION CAGE The present invention relates to the field of spinal orthopaedics, and more particularly to that of interbody cages.
Such prostheses are intended to stabilise pathological spinal segments and induce bone consolidation by means of the fusion of the two segments. These cages are generally made from titanium, carbon or biocompatible composite material and receive bone grafts.
For example, it is possible to refer to the French patent application FR 2764795 disclosing an interbody cage according to the prior art. This cage comprises a central hollow space intended to be filled with bone fragments. It comprises, on its transverse section, two wide, convex faces, each equipped with a central opening, two narrow faces each equipped with a central opening, said narrow faces comprising slanting toothing distributed at either end of the central opening of the narrow faces. It also comprises a convex closed front end and a rear end comprising at its centre a polygonal housing to receive an adjustment device. A fitting key equipped with a polygonal fitting and a threaded rod co-operates with the cage according to the invention to insert it by means of impaction between the vertebrae and stabilise it by means of rotation after impaction..
Another French patent application published under the number FR2761879 discloses an implant which comprises, on its two diametrically opposite sides intended to come into contact with the spongy bone of the vertebrae after implantation, a plurality of separate openings, offset at an angle with reference to the others by an interval corresponding roughly to half the length of an opening, such that one of these openings is located opposite the part of the wall of the implant which separates two longitudinally adjacent openings.
Another patent application FR2717068 discloses an interbody cage to be inserted frontally between two vertebrae comprising two roughly parallel branches to come into contact with the vertebral bodies, a bridge connecting the rear ends of the branches after insertion of the cage between the two vertebrae. The cage enables preoperative setting of the lordosis angle between the two vertebrae. A cage holder is connected in a detachable manner to the cage to insert the cage between the two vertebrae. After the removal 2 147, 400/2 of the cage holder, a screwdriver turns a screw wherein the rear end is attached to the distance piece and screwed into one of the branches to separate the two cage branches.
It was also proposed in the American patent No. US 5, 800, 550 to produce an interbody cage comprising toothed cylinders which can be pushed vertically into the vertebrae, by means of a tool equipped with a screw thread, in order to hold the interbody cage in place.
It was also proposed in the German patent application No. DE 4327054 to produce an interbody cage comprising a cam shaft used to raise support eye-bolts.
It was also proposed in the international patent application No. WO 97/06753 to produce an interbody cage comprising a more or less cylindrical hollow body 1, 51 equipped with one or more openings 9, 10, 59, 59', 60, 60'. The hollow body 1, 51 may be broadened in an adjustable manner by adjustment components 18, 19, 65, 66 and comprises fixation components 24, 25, 69, 70, 71, 72 used to fix it on vertebrae.
It was also proposed in the international patent application No. WO 97/46165 to produce an interbody cage comprising at least two basic screws 1, two locking parts 2 preventing the rotation of the vertebra and a connection part 3, 4, 5.
The problem posed with these interbody cages according to the prior art is that of provisional fixation before bone fusion has taken place. Indeed, it is vital for the cage to remain in position. The solutions according to the prior art are not satisfactory since they require direct or indirect impacting of the cage in the intervertebral space.
The major drawbacks of the devices according to the prior art lie both in the fact that they do not allow perfect stabilisation of the interbody cage in the spinal segments, particularly during extension and/or rotation movements of the spinal column and in the fact that they do not really allow the ablation of the interbody cage .
The purpose of the present invention to propose an enhanced interbody cage allowing implantation by the cervical, thoracic or lumbar route, by means of a frontal or rear surgical procedure, guaranteeing effective fixation of the cage before bone fusion and once bone fusion has taken place, and allowing the removal of the cage after bone fusion. 3 147, 00/2 The purpose of the cage according to the invention is to make it possible to keep the intervertebral space constant in order to prevent the distraction of the vertebral bodies.
For this purpose, the broadest embodiment of the invention relates to an interbody spinal stabilisation cage according to claim 1.
An anchoring point is, by definition, composed of a lock comprising no degree of freedom. The interbody cage anchored in this way by anchoring means locks the vertebrae in terms of compression, extension and rotation, in order to form a perfectly attached assembly .
Preferentially, the actuation means comprise a rotation actuation head and are mobile in rotation in both directions, to allow reversibility of the anchoring means.
According to a first embodiment, the anchoring means are composed of self-tapping screws.
According to a preferred embodiment, said anchoring means have an overall S shape and the centre of gravity of the S shape coincides with the axis of the actuation means.
Advantageously, each anchoring means comprise at least one radial cutting edge roughly perpendicular to the axis of the actuation means, to allow good penetration of the anchoring means in the bone substance when the cage is fitted and possibly during its ablation .
Advantageously, each anchoring means also comprise at least one return cutting edge roughly parallel to the main cutting edge to allow good penetration of the anchoring means in the bone substance during the ablation of the cage.
Also advantageously, each anchoring means comprise a slot, to allow bone regrowth between the arms of the anchoring means. The cooperation obtained in this way between the anchoring means and the bone regrowth guarantees perfect support of the vertebrae in terms of compression, extension and rotation.
In addition, the edges of these slots are preferentially at least partially cutting, to allow to the production of a slit for the release of the anchoring means and the ablation of the interbody cage. 4 147,400/2 Also advantageously, the cage according to the invention comprises force locking/unlocking means of the anchoring means in their anchored position.
Finally, advantageously, said actuation means comprise in their centres a hole wherein the walls are threaded, to be able to position one or more additional components, such as a fixation screw, in the axis of the actuation means.
The invention will be understood more clearly upon reading the following description, with reference to the non-restrictive example illustrated in the appended figures where: figure 1 represents a perspective schematic view of an interbody cage according to the invention; - figures 2, 3 and 4 respectively represent a perspective schematic view and section schematic views of an interbody cage corresponding to a first embodiment of the anchoring means of the interbody cage according to the invention; - figures 5 and 6 respectively illustrate a perspective view of two pairs of S-shaped anchoring means according to a second embodiment of the anchoring means of the interbody cage according to the invention; · - figure 7 illustrates a perspective view of an interbody cage according to the invention with one pair of anchoring means; - figures 8 and 9 respectively illustrate a front view of the interbody cage in figure 7, in the retracted position and in the anchoring position; - figure 10 illustrates a side view of an interbody cage according to the invention with one pair of anchoring means. - figure 11 illustrates a perspective view of an interbody cage according to the invention with a double pair of anchoring means; and - figures 12 and 13 respectively illustrate a front view of the interbody cage in figure 11, in the anchoring position and in the anchored position.
The interbody cage 1 according to the invention has an overall parallelepipedic shape and delimits a hollow inner space 4 opening by means of slots provides on the different faces, particularly on the lateral 5, 5' and front 6 faces. The inner space 4 is intended to be filled with bone fragments taken from the patient. These bone 5 147, 400/2 fragments are intended to initiate fusion of the vertebrae between which the interbody cage is placed.
The front face 6 comprises a slot used to access the rotation actuation head 7 of the actuation means 2.
In this way, using the actuation means, the anchoring means each have two extreme positions: a retracted position wherein they are positioned inside the cage and an anchored position wherein that have a maximum clearance outside the cage. Between these two extreme positions, the anchoring means comprise a plurality of intermediate anchoring positions.
In a first embodiment of the invention, the actuation means 2 are composed of an actuation rod equipped with a screw thread and the anchoring means 3 are composed of two self-tapping screws 8, 9 opening onto the upper lateral face 5 and the lower lateral face 5', respectively .
The actuation rod comprises a hexagonal head for actuation with a tool and a ribbed body which co-operates with the threading of the self-tapping screws 8, 9.
In this embodiment, the main cutting edge 10 is composed of the end of the self-tapping screw thread.
In a preferred embodiment of the invention, said anchoring means 3 have an overall S shape, as illustrated in figures 5 and 6, and the centre of gravity of the S shape is positioned on the axis A of the actuation means 2, as illustrated in figure 7.
In this version, each anchoring means 3 preferentially comprise at least one radial cutting edge 11, positioned on a radius of the anchoring means, roughly perpendicular to the axis of the actuation means, on the edge of the connection arms of the anchoring means, and at least one return cutting edge 12 roughly parallel to the main cutting edge 10, as illustrated in figures 5 and 6.
Figure 6 illustrates a version of the invention wherein said main cutting edge 10 forms the base of an at least isosceles or equilateral triangle, equipped with cutting sides forming sharp edges 10' , 10" .
In this figure, each anchoring means 3 comprise two radial cutting edges 11 positioned roughly on the same radius of the anchoring means 3, on opposite edges, inside and outside, of the connection arms. 6 147, 400/2 In figure 7, each anchoring means 3 comprise two radial cutting edges 11 positioned side by side on the inner face of the connection arms.
The cutting movement enabling the anchoring of the cage is illustrated by the arrows Fl in figures 8 and 9, while the ablation movement is illustrated by the arrows F2.
In addition, each anchoring means preferentially 3 comprises a slot 13 wherein the edges are at least partially cutting, as illustrated in figure 10.
To be able to lock the anchoring means 3 in the anchoring position, the cage according to the invention preferentially comprises force locking/unlocking means of the anchoring means 3 in their anchored position, composed, for example, of a boss intended to co-operate with a recess.
Preferentially, the interbody cage 1 according to the invention, as illustrated in figure 11, comprises two pairs of anchoring means 3 turning, for example, in two opposite directions, each actuation means 2 of each pair of anchoring means 3 opening onto the same front face 6.
In this version, the cutting movement enabling the anchoring of the cage is illustrated by the arrows Fl in figure 12, while the ablation movement is illustrated by the arrows F2.
Figure 13 illustrates the double S-shaped interbody cage, in the anchored position.
The cage is advantageously made from carbon. Such a material has a Young's modulus comparable to that of bone. The anchoring means are advantageously made from hydroxyapatite or a bound and sintered calcium phosphate compound aggregate material. The aggregates are bound with calcium phosphate compound particles. The anchoring means may also be made from titanium or stainless steel-based metal alloy.
The anchoring means may also be made from bicalcium phosphate, tricalcium phosphate or porous tantalum.
The invention is described above as an example. Those skilled in the art will be capable of producing various alternatives, particularly for the actuation of the anchoring means and the erection by means of actuation of an anchoring device accessible via a front face. 147,400/2 8

Claims (11)

1. Interbody spinal stabilisation cage (1) having a parallelepipedic shape and comprising a central hollow space (4) intended to be filled with bone fragments, characterised in that it comprises anchoring means (3) having an overall S shape and opening onto lateral faces (5, 5') connecting with adjacent vertebrae, actuated by at least one actuation means (2) opening into a front face (6), said anchoring means (3) each comprising at least one main cutting edge (10) .
2. Interbody cage (1) according to the main claim characterised in that the actuation means (2) comprise a rotation actuation head (7) and are mobile in rotation in both directions, to allow reversibility of the anchoring means.
3. Interbody cage (1) according to claim 1 or 2, characterised in that the centre of gravity of the S shape is positioned on the axis of the actuation means (2) .
4. Interbody cage (1) according to at least one of the above claims characterised in that said main cutting edge (10) forms the base of an at least isosceles triangle, equipped with cutting sides forming sharp edges (10 ' , 10 ' ' ) .
5. Interbody cage (1) according to at least one of the above claims characterised in that each anchoring means (3) comprise at least one radial cutting edge (11) positioned on a radius of the anchoring means .
6. Interbody cage (1) according to at least one of the above claims characterised in that each anchoring means (3) also comprise at least one return cutting edge (12) roughly parallel to the main cutting edge (10) .
7. Interbody cage (1) according to at least one of the above claims characterised in that each anchoring means (3) comprise a slot (13) . 147,400/2 9
8. Interbody cage (1) according to claim 7 characterised in that the edges of said slot (13) are at least partially cutting.
9. Interbody cage (1) according to at least one of the above claims characterised in that it comprises force locking/unlocking means of the anchoring means (3) in their anchored position.
10. Interbody cage (1) according to at least one of the above claims characterised in that it comprises two pairs of anchoring means (3), each actuation means (2) of each pair of anchoring means (3) opening into the same front face (6) .
11. Interbody cage (1) according to at least one of the above claims characterised in that said actuation means (2) comprise in their centres a hole (14) wherein the walls are threaded. Co.
IL147400A 1999-07-01 2001-12-30 Interbody spinal stabilisation cage IL147400A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9908501A FR2795627A1 (en) 1999-07-01 1999-07-01 INTERSOMATIC CAGE OF IMMOBILIZATION OF THE RACHIS
PCT/FR2000/001892 WO2001001894A1 (en) 1999-07-01 2000-07-03 Interbody spinal stabilisation cage

Publications (1)

Publication Number Publication Date
IL147400A true IL147400A (en) 2010-04-29

Family

ID=9547606

Family Applications (2)

Application Number Title Priority Date Filing Date
IL14740000A IL147400A0 (en) 1999-07-01 2000-07-03 Interbody spinal stabilisation cage
IL147400A IL147400A (en) 1999-07-01 2001-12-30 Interbody spinal stabilisation cage

Family Applications Before (1)

Application Number Title Priority Date Filing Date
IL14740000A IL147400A0 (en) 1999-07-01 2000-07-03 Interbody spinal stabilisation cage

Country Status (14)

Country Link
EP (1) EP1278486B1 (en)
JP (1) JP4189151B2 (en)
KR (1) KR100673143B1 (en)
AT (1) ATE291399T1 (en)
AU (1) AU6165200A (en)
BR (1) BR0011965A (en)
CA (1) CA2373788C (en)
DE (1) DE60018988T2 (en)
FR (1) FR2795627A1 (en)
IL (2) IL147400A0 (en)
MX (1) MXPA02000178A (en)
RU (1) RU2258488C2 (en)
WO (1) WO2001001894A1 (en)
ZA (1) ZA200200791B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6923830B2 (en) 2002-02-02 2005-08-02 Gary K. Michelson Spinal fusion implant having deployable bone engaging projections
US7018415B1 (en) 2002-09-23 2006-03-28 Sdgi Holdings, Inc. Expandable spinal fusion device and methods of promoting spinal fusion
FR2846876B1 (en) 2002-11-12 2005-07-29 Hassan Razian INTERVENIAL CAGE WITH MEDIAN ANCHOR BLADE
FR2916956B1 (en) * 2007-06-08 2012-12-14 Ldr Medical INTERSOMATIC CAGE, INTERVERTEBRAL PROSTHESIS, ANCHORING DEVICE AND IMPLANTATION INSTRUMENTATION
US9526620B2 (en) 2009-03-30 2016-12-27 DePuy Synthes Products, Inc. Zero profile spinal fusion cage
CA3003975A1 (en) 2009-12-31 2011-07-07 Ldr Medical Anchoring device, intervertebral implant and implantation instrument
CZ2010155A3 (en) * 2010-03-03 2011-09-14 Šrámek@Jirí Stand alone PLIF and TLIF cage for spinal column fusion with stability secured by threaded pins
AU2011227293A1 (en) 2010-03-16 2012-11-08 Pinnacle Spine Group, Llc Intervertebral implants and graft delivery systems and methods
US9248028B2 (en) 2011-09-16 2016-02-02 DePuy Synthes Products, Inc. Removable, bone-securing cover plate for intervertebral fusion cage
US9380932B1 (en) 2011-11-02 2016-07-05 Pinnacle Spine Group, Llc Retractor devices for minimally invasive access to the spine
US9693876B1 (en) 2012-03-30 2017-07-04 Ali H. MESIWALA Spinal fusion implant and related methods
US10070970B2 (en) 2013-03-14 2018-09-11 Pinnacle Spine Group, Llc Interbody implants and graft delivery systems
EP3361998B1 (en) * 2015-10-13 2020-01-08 Globus Medical, Inc. Device and method for deployment of an anchoring device for intervertebral spinal fusion
FR3048176A1 (en) 2016-02-26 2017-09-01 Ldr Medical SPINAL ARTHRODESIS IMPLANT SYSTEM
US10940016B2 (en) 2017-07-05 2021-03-09 Medos International Sarl Expandable intervertebral fusion cage
CN111839831B (en) * 2020-07-27 2023-06-30 北京市春立正达医疗器械股份有限公司 Vertical implanted artificial vertebral body

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4327054C1 (en) * 1993-08-12 1995-04-13 Schaefer Micomed Gmbh Ventral intervertebral implant
US5702391A (en) * 1995-05-16 1997-12-30 Lin; Chih-I Intervertebral fusion device
DE19529605C2 (en) * 1995-08-11 1997-10-09 Bernhard Zientek Intervertebral implant
US5683394A (en) * 1995-09-29 1997-11-04 Advanced Spine Fixation Systems, Inc. Fusion mass constrainer
US5800550A (en) * 1996-03-13 1998-09-01 Sertich; Mario M. Interbody fusion cage
AU2989997A (en) * 1996-06-04 1998-01-05 Cengiz Turkmen Surgical instrument for the fusion of vertebrae
AU3021897A (en) * 1996-06-18 1998-01-07 Marc D. Grynpas Bone prosthesis fixation device and methods of using same
DE19807236C2 (en) * 1998-02-20 2000-06-21 Biedermann Motech Gmbh Intervertebral implant
DE19818143A1 (en) * 1998-04-23 1999-10-28 Medinorm Ag Device for connecting vertebrae of the spine
JP4141640B2 (en) * 1998-06-23 2008-08-27 ストリケ、スピーヌ Intervertebral implant having an anchoring component

Also Published As

Publication number Publication date
CA2373788C (en) 2009-01-06
EP1278486A1 (en) 2003-01-29
RU2258488C2 (en) 2005-08-20
EP1278486B1 (en) 2005-03-23
ZA200200791B (en) 2003-03-26
ATE291399T1 (en) 2005-04-15
JP4189151B2 (en) 2008-12-03
BR0011965A (en) 2002-05-14
JP2003503155A (en) 2003-01-28
AU6165200A (en) 2001-01-22
MXPA02000178A (en) 2003-07-21
DE60018988T2 (en) 2006-04-13
KR20020033648A (en) 2002-05-07
DE60018988D1 (en) 2005-04-28
KR100673143B1 (en) 2007-01-22
CA2373788A1 (en) 2001-01-11
IL147400A0 (en) 2002-08-14
FR2795627A1 (en) 2001-01-05
WO2001001894A1 (en) 2001-01-11

Similar Documents

Publication Publication Date Title
US6770096B2 (en) Interbody spinal stabilization cage and spinal stabilization method
US5800550A (en) Interbody fusion cage
JP6181236B2 (en) Independent intervertebral fusion device
US7637951B2 (en) Nested interbody spinal fusion implants
US8882843B2 (en) Interbody spinal fusion implant having a trailing end with at least one stabilization element
US9060816B2 (en) Spinal stabilization systems and methods of use
EP1500372B1 (en) Apparatus for spinal fixation
AU2001296380B2 (en) Method and apparatus for stabilizing adjacent bones
US9801732B2 (en) System and method for an intervertebral implant assembly
IL147400A (en) Interbody spinal stabilisation cage
EP0611116B1 (en) Spinal column retaining apparatus
US6890355B2 (en) Artificial contoured spinal fusion implants made of a material other than bone
US9101410B1 (en) Facet joint fusion device and method for using same
US20090171394A1 (en) Devices And Methods For The Treatment Of Facet Joint Disease
JP2004517686A (en) Interbody spinal fusion implant having a posterior end adapted to receive a bone screw
AU2001296380A1 (en) Method and apparatus for stabilizing adjacent bones
WO2004080356A2 (en) Spinal implant with securement spikes
JP2003521273A (en) Self broaching, rotary push-in implant for interbody fusion and method of deployment

Legal Events

Date Code Title Description
FF Patent granted
KB Patent renewed
MM9K Patent not in force due to non-payment of renewal fees