WO2003068112A1 - Systeme permettant de fixer une piece sur un corps osseux - Google Patents
Systeme permettant de fixer une piece sur un corps osseux Download PDFInfo
- Publication number
- WO2003068112A1 WO2003068112A1 PCT/FR2003/000438 FR0300438W WO03068112A1 WO 2003068112 A1 WO2003068112 A1 WO 2003068112A1 FR 0300438 W FR0300438 W FR 0300438W WO 03068112 A1 WO03068112 A1 WO 03068112A1
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- WIPO (PCT)
- Prior art keywords
- rod
- holes
- spiral
- hole
- helical
- Prior art date
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Classifications
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- 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
- A61F2/4455—Joints 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
- A61F2/446—Joints 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 having a circular or elliptical cross-section substantially parallel to the axis of the spine, e.g. cylinders or frustocones
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- 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
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- 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
- A61F2/4455—Joints 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/4611—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
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- 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
- A61F2002/30153—Convex polygonal shapes rectangular
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- 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
- A61F2002/30154—Convex polygonal shapes square
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- 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
- A61F2002/30158—Convex polygonal shapes trapezoidal
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/30199—Three-dimensional shapes
- A61F2002/30289—Three-dimensional shapes helically-coiled
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30593—Special structural features of bone or joint prostheses not otherwise provided for hollow
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
- A61F2002/30649—Ball-and-socket joints
-
- 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
- A61F2002/3082—Grooves
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- 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
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- 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
- A61F2230/0019—Angular shapes rectangular
-
- 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
- A61F2230/0021—Angular shapes square
-
- 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
- A61F2230/0026—Angular shapes trapezoidal
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0091—Three-dimensional shapes helically-coiled or spirally-coiled, i.e. having a 2-D spiral cross-section
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00011—Metals or alloys
- A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys
Definitions
- the present invention relates to systems for fixing a part on a bone body, which find a particularly advantageous application in the spinal domain for fixing, for example, an interbody cage or an intervertebral disc on the vertebral bodies of two consecutive vertebrae.
- Intervertebral prostheses which are implanted between the two vertebral bodies of two vertebrae are already known. These prostheses include for example plates which must be respectively fixed to the two vertebral bodies.
- means such as pins, ribs, etc. are used. which are anchored in the superficial part of the bony body.
- the joining between the part and the bone body can in this case only be done by the natural regrowth of the bone, that is to say by osteosynthesis, by intercalating if necessary a product promoting this osteosynthesis, by example of hydroxyapatite and / or a biocompatible metal, porous or not, or the like.
- the latter solution is not practical because in this case it is necessary to prohibit the patient on whom such a prosthesis part is implanted from having significant movements as long as the solidification by osteosynthesis is not final.
- the present invention therefore aims to provide a system to overcome the drawbacks reported above of the systems of the prior art for fixing a part, for example metal, on a bone body, and which find a particularly application advantageous in spinal prostheses.
- the present invention relates to a system for fixing a part on a bone body according to claim 1.
- This system includes:
- a rod comprising a first end, said rod being wound in a spiral substantially along a first helical curve with respect to a longitudinal axis, and - at least one through hole made in said part and having an axial line,
- the part to be fixed to the bone body preferably comprises a plurality of through holes, the axial lines of these through holes being substantially perpendicular to the longitudinal axis of the first helical curve, the cross section of the holes of this said plurality of through holes being at least equal to the maximum cross section of said rod.
- the axial line or lines respectively of the through hole (s) is or are either straight (s) and substantially perpendicular (s) to the longitudinal axis of the first helical curve, or defined (s) substantially along a second helical curve.
- Said piece to be fixed preferably comprises a projecting rib, the height of said rib, taken from the edges of said through holes, being less than the internal diameter of the spiral and this rib being produced, preferably, according to a axial line substantially parallel to the longitudinal axis of the first helical curve.
- the cross section of said rod may have substantially the shape of a rectangle quadrilateral, a circle, or any other shape.
- Said first and second helical curves are preferably substantially identical and the first and / or second helical curve (s) is or are preferably also of constant pitch.
- the through breakthrough (s) comprise (s), preferably, each at least one ramp respectively bordering at least one end of each through breakthrough to guide the passage of the first end of said rod in said breakthroughs.
- the means for driving the rotation of the rod around the axis of the first helical curve comprise a head secured to the second end of said rod, said head comprising means capable of cooperating with a drive ancillary in rotation.
- the head preferably has an annular shape whose inside and outside diameters are respectively substantially equal to the inside and outside diameters of said spiral.
- the number of through holes is preferably substantially equal to the number of turns of said spiral.
- the end of the rod is preferably pointed or beveled.
- said spiral has a self-tapping shape.
- the present invention also relates to a rod for a system according to the invention, to an interbody cage comprising at least one system according to the invention and to an artificial intervertebral disc comprising two plates of which at least one and preferably both comprises ( nt) a system according to the invention.
- the system according to the invention is simple and easy to manufacture and to install. It does not require significant damage to the bone body.
- system according to the invention is relatively simple to remove when this operation is necessary.
- Figures 1 and 2 show two sectional views of an embodiment of the system according to the invention for fixing a part on a bone body, Figure 1 being a section referenced II in Figure 2, Figure 2 being a section referenced II-II in FIG. 1, and
- FIG. 3 and 4 respectively show a sectional view and a perspective view of another embodiment of the system according to the invention in an application to the fixing of the two plates of an intervertebral disc respectively on the two vertebral bodies of two consecutive vertebrae.
- the present invention relates to a system S for fixing a piece P on a bone body Co.
- the part P comprises at least one through hole 10 made, for example, on an outer surface 18, 18 ′, this through hole having an axial line 10 x .
- the system S a rigid rod 20 comprising a first end 21 shaped to be able to penetrate the body Co, the rod being wound in a spiral 22 substantially along a first helical curve.
- the system further comprises means 30 for driving the rotation of the rod 20 around the axis 31 of the first helical curve so that the first end 21 of the rod 20 passes alternately in the body Co and outside the body, and that, in its rotational movement outside the body Co, the first end 21 of the rod 20, for example pointed or beveled, passes at least once through the through hole 10.
- the cross section of the through hole 10 may be circular and of a section slightly greater than the maximum section of the rod 20.
- the rod 20 passes only once in this breakthrough.
- it can also be made a hole of oblong cross section and of width at least equal to the maximum section of the rod 20 and of length at least equal to a multiple of the pitch of the helical spiral 22.
- the first end 21 of the rod passes, or can pass, several times in the same through-hole.
- the system includes a plurality of through holes 10, 11, 12, ..., as illustrated in all the figures, produced in part P, each having an axial line 10 x respectively. , 11 x , 12 x , ...
- the axial lines 10 x , 11 x , 12 x , ... of these through holes are substantially defined according to a second helical curve, the cross section of the holes of this plurality being at least equal to the maximum cross section of the rod 20 so that the rod can slide there relatively easily.
- the through holes 10, 11, 12, ... are produced in the part P so that their axial lines 10 x , 11 x , 12 x , ... are all substantially perpendicular to the same straight line 13 , itself parallel to the axis 31, to promote the penetration of the rod 20 into the bone and help it pass more easily through these breakthroughs.
- the system also comprises, as illustrated in the figures, a projecting rib 40 produced on the part P possibly able to cooperate, for example by plugging in, with a complementary groove previously made in the bone body Co.
- the height of the rib, taken from the edges of the through holes, is, of course, less than inside diameter of the spiral 22.
- the rib 40 is produced along an axial line substantially parallel to the axis 31 and is substantially contained in a plane defined by the straight line 13 and the axis 31 of the second helical spiral curve 22. This rib 40 makes it possible to increase the maintenance at the level of the cooperation between the walls of the through holes and the spiral 22.
- the cross section of the rod 20 has substantially the shape of a rectangular quadrilateral, for example a square or a rectangle, possibly a trapezium whose large base is little different of the small one and whose shape can then resemble that of a rectangle.
- first and second helical curves defined above are advantageously substantially identical and preferably have a constant pitch.
- the through hole (s) 10, 11, 12, ... each have at least one ramp 14, 15 bordering at least one end 16, 17 respectively of each through hole to guide the passage of the first end 21 of said rod 20 into said holes.
- the axial lines 10 x , 11 x , 12 x , ..., while remaining perpendicular to the straight line 13, are rounded transversely according to a radius of curvature greater than the outside radius of the spiral 22, as can be seen. see Figure 1.
- the system advantageously comprises ramps 14, 15 respectively bordering each of the two ends 16, 17 of each through hole.
- the system includes means 30 for driving the rotation of the rod 20 around the axis 31 of the second helical curve.
- These means may for example be constituted by the second end 23 of the rod 20 in a spiral 22.
- the head 32 it is also very advantageous for the head 32 to have an annular shape, the inside and outside diameters of which are respectively substantially equal to the inside and outside diameters of the spiral 22, which makes it possible to obtain simultaneous production of the spiral 22 and the head. 32, by machining a cylindrical tube of revolution made of titanium or the like.
- This embodiment of the annular head also has an advantage during the establishment of the spiral. Indeed, the head then serves as a stop to define the limit position of the spiral 22 relative to part P, as illustrated in FIGS. 3 and 4.
- the number of holes 10, 11, 12, ... is substantially equal to the number of turns of the spiral 22, which makes it possible to obtain a relatively good fixation of the part P on the bone body Co , with a minimum spiral length.
- the system according to the invention can be used in many fields, but finds particularly advantageous applications for the methods of fixing interbody cages or intervertebral discs.
- To facilitate the implantation of the system according to the invention it may be necessary to first perform a tapping of the bone body, in order to produce in the wall a substantially helical shape which is exactly complementary to the shape of the spiral 22. This operation is then carried out using a tapping instrument.
- the prosthesis spiral is screwed into the tapping.
- FIGs 3 and 4 show, by way of illustration, the system according to the invention used to fix the two plates 51, 52, of an artificial intervertebral disc D cooperating with each other by means of ball joint 53 or the like, with respectively the two vertebral bodies of two consecutive vertebrae.
- an artificial intervertebral disc D When it is necessary to implant, for example, an artificial intervertebral disc D between two vertebral bodies, it is introduced by sliding it between the two vertebral bodies, if necessary previously subjected to a slight distraction.
- Two helical spiral rods 22 are then respectively introduced as described above by passing alternately through the bone of the vertebral bodies and respectively through the through-holes of each plate of the intervertebral disc, the first end 21 of each rod passing, at each complete turn of the spiral when the rod is rotated by the head 32, in a breakthrough 10, 11, 12, ...
- the arrow 19 illustrates the direction of the screwing movement of the spiral 22 in the vertebral structure for the implantation of the system S.
- the system according to the invention will be used in the same way as described above, to fix at least one of the two opposite external surfaces of an interbody cage on at least one of the two vertebral bodies of two vertebrae consecutive, the through holes being made on the opposite faces of the cage.
- the fixing system described above has two essential advantages over the systems of the prior art which only included pins and / or ribs, with possibly products promoting osteosynthesis between the facing faces coming into contact, respectively. plates and vertebral bodies.
- the first of these two advantages is the fact that it is then possible to introduce the intervertebral disc or the cage without having to carry out a significant distraction between the two vertebral bodies, whereas, with the systems of the prior art, it was necessary to distract the two vertebral bodies by at least twice the height of the pins and / or ribs.
- fixation makes it possible to obtain what the technicians call a primary stability which allows the patient to carry out movements which were not authorized to him with the systems of the prior art which required to wait for significant bone consolidation, usually of the order of a few weeks.
- the spiral is simply unscrewed by turning the cage in the opposite direction to the arrow 19. It is not necessary to break the bone body to release the spiral 22.
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003226878A AU2003226878A1 (en) | 2002-02-11 | 2003-02-11 | System for fixing a part to a bone element |
US10/504,388 US8142504B2 (en) | 2002-02-11 | 2003-02-11 | System for fixing a part to a bone element |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0201654A FR2835739B1 (fr) | 2002-02-11 | 2002-02-11 | Systeme permettant de fixer une piece sur un corps osseux |
FR02/01654 | 2002-02-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003068112A1 true WO2003068112A1 (fr) | 2003-08-21 |
Family
ID=27620088
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2003/000438 WO2003068112A1 (fr) | 2002-02-11 | 2003-02-11 | Systeme permettant de fixer une piece sur un corps osseux |
Country Status (4)
Country | Link |
---|---|
US (1) | US8142504B2 (fr) |
AU (1) | AU2003226878A1 (fr) |
FR (1) | FR2835739B1 (fr) |
WO (1) | WO2003068112A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2701638A1 (fr) * | 2011-04-26 | 2014-03-05 | Alphatec Spine, Inc. | Système de fixation intersomatique autonome |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
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US7491232B2 (en) * | 1998-09-18 | 2009-02-17 | Aptus Endosystems, Inc. | Catheter-based fastener implantation apparatus and methods with implantation force resolution |
FR2897259B1 (fr) | 2006-02-15 | 2008-05-09 | Ldr Medical Soc Par Actions Si | Cage intersomatique transforaminale a greffon de fusion intervetebrale et instrument d'implantation de la cage |
FR2824261B1 (fr) | 2001-05-04 | 2004-05-28 | Ldr Medical | Prothese de disque intervertebral et procede et outils de mise en place |
FR2827156B1 (fr) | 2001-07-13 | 2003-11-14 | Ldr Medical | Dispositif de cage vertebrale avec fixation modulaire |
FR2846550B1 (fr) | 2002-11-05 | 2006-01-13 | Ldr Medical | Prothese de disque intervertebral |
WO2004089240A2 (fr) | 2003-04-04 | 2004-10-21 | Theken Disc, Llc | Prothese de disque artificiel |
FR2865629B1 (fr) | 2004-02-04 | 2007-01-26 | Ldr Medical | Prothese de disque intervertebral |
ES2363154T3 (es) | 2004-02-04 | 2011-07-22 | Ldr Medical | Prótesis de disco intervertebral. |
FR2869528B1 (fr) | 2004-04-28 | 2007-02-02 | Ldr Medical | Prothese de disque intervertebral |
FR2879436B1 (fr) | 2004-12-22 | 2007-03-09 | Ldr Medical | Prothese de disque intervertebral |
FR2891135B1 (fr) | 2005-09-23 | 2008-09-12 | Ldr Medical Sarl | Prothese de disque intervertebral |
FR2893838B1 (fr) | 2005-11-30 | 2008-08-08 | Ldr Medical Soc Par Actions Si | Prothese de disque intervertebral et instrumentation d'insertion de la prothese entre les vertebres |
US8465546B2 (en) | 2007-02-16 | 2013-06-18 | Ldr Medical | Intervertebral disc prosthesis insertion assemblies |
FR2916956B1 (fr) | 2007-06-08 | 2012-12-14 | Ldr Medical | Cage intersomatique,prothese intervertebrale,dispositif d'ancrage et instrumentation d'implantation |
JP5699353B2 (ja) | 2009-09-17 | 2015-04-08 | エルディーアール ホールディング コーポレイション | 拡張可能な骨固定部材を有する椎間インプラント |
RU2573945C2 (ru) | 2009-12-31 | 2016-01-27 | Лдр Медикал | Крепежное устройство, межпозвонковый имплантат и приспособление для имплантирования |
US9750616B2 (en) | 2012-02-17 | 2017-09-05 | Spinal Elements, Inc. | Interbody fusion device |
FR2987256B1 (fr) | 2012-02-24 | 2014-08-08 | Ldr Medical | Dispositif d'ancrage pour implant intervertebral, implant intervertebral et instrumentation d'implantation |
US20130261746A1 (en) * | 2012-03-28 | 2013-10-03 | Linares Medical Devices, Llc | Implantable inter-vertebral disk having upper and lower layers of a metal exhibiting bone fusing characteristics and which sandwich therebetween a soft plastic cushioning disc for providing dynamic properties mimicking that of a natural inter-vertebral disc |
US9456904B2 (en) * | 2012-10-23 | 2016-10-04 | Spinesmith Partners, L.P. | Facet fixation device |
FR3005569B1 (fr) | 2013-05-16 | 2021-09-03 | Ldr Medical | Implant vertebral, dispositif de fixation vertebrale d'implant et instrumentation d'implantation |
FR3016793B1 (fr) | 2014-01-30 | 2021-05-07 | Ldr Medical | Dispositif d'ancrage pour implant spinal, implant spinal et instrumentation d'implantation |
FR3020756B1 (fr) | 2014-05-06 | 2022-03-11 | Ldr Medical | Implant vertebral, dispositif de fixation vertebrale d'implant et instrumentation d'implantation |
US10342678B2 (en) | 2015-02-02 | 2019-07-09 | Spinal Elements, Inc. | Interbody implant inserter |
US10449051B2 (en) | 2015-04-29 | 2019-10-22 | Institute for Musculoskeletal Science and Education, Ltd. | Implant with curved bone contacting elements |
US10492921B2 (en) | 2015-04-29 | 2019-12-03 | Institute for Musculoskeletal Science and Education, Ltd. | Implant with arched bone contacting elements |
EP3288501B1 (fr) | 2015-04-29 | 2020-11-25 | Institute For Musculoskeletal Science And Education, Ltd. | Implants helicoidaux |
US10166116B2 (en) * | 2015-12-02 | 2019-01-01 | Brian Patrick Janowski | Helical lock spacer, instruments and methods |
US10478312B2 (en) | 2016-10-25 | 2019-11-19 | Institute for Musculoskeletal Science and Education, Ltd. | Implant with protected fusion zones |
US10512549B2 (en) | 2017-03-13 | 2019-12-24 | Institute for Musculoskeletal Science and Education, Ltd. | Implant with structural members arranged around a ring |
US10744001B2 (en) | 2017-11-21 | 2020-08-18 | Institute for Musculoskeletal Science and Education, Ltd. | Implant with improved bone contact |
US10940015B2 (en) | 2017-11-21 | 2021-03-09 | Institute for Musculoskeletal Science and Education, Ltd. | Implant with improved flow characteristics |
US11273058B2 (en) | 2019-05-07 | 2022-03-15 | Spinal Elements, Inc. | Cervical plate and inserter |
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US5423817A (en) * | 1993-07-29 | 1995-06-13 | Lin; Chih-I | Intervertebral fusing device |
WO1998002117A1 (fr) * | 1996-07-15 | 1998-01-22 | Aesculap Ag & Co. Kg | Implant pour fusion de corps vertebraux |
WO1998048738A1 (fr) * | 1997-04-25 | 1998-11-05 | Stryker France S.A. | Implants intersomatiques en deux parties |
FR2812188A1 (fr) * | 2000-07-31 | 2002-02-01 | Spinevision Sa | Cage d'immobilisation du rachis et d'osteosynthese, procede de fabrication de ladite cage et equipement de forage pour l'implantation de ladite cage |
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US5433817A (en) * | 1993-09-30 | 1995-07-18 | Fabio Perini S.P.A. | Ply-bonding device for bonding plies of paper webs and like material |
US6758849B1 (en) * | 1995-02-17 | 2004-07-06 | Sdgi Holdings, Inc. | Interbody spinal fusion implants |
US5662683A (en) * | 1995-08-22 | 1997-09-02 | Ortho Helix Limited | Open helical organic tissue anchor and method of facilitating healing |
DE29720022U1 (de) * | 1997-11-12 | 1998-01-15 | SCHÄFER micomed GmbH, 73035 Göppingen | Zwischenwirbelimplantat |
US6544265B2 (en) * | 2000-11-08 | 2003-04-08 | The Cleveland Clinic Foundation | Apparatus for implantation into bone related applications |
-
2002
- 2002-02-11 FR FR0201654A patent/FR2835739B1/fr not_active Expired - Fee Related
-
2003
- 2003-02-11 WO PCT/FR2003/000438 patent/WO2003068112A1/fr not_active Application Discontinuation
- 2003-02-11 US US10/504,388 patent/US8142504B2/en active Active
- 2003-02-11 AU AU2003226878A patent/AU2003226878A1/en not_active Abandoned
Patent Citations (6)
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US4038703A (en) * | 1975-11-14 | 1977-08-02 | General Atomic Company | Prosthetic devices having a region of controlled porosity |
US5263953A (en) * | 1991-12-31 | 1993-11-23 | Spine-Tech, Inc. | Apparatus and system for fusing bone joints |
US5423817A (en) * | 1993-07-29 | 1995-06-13 | Lin; Chih-I | Intervertebral fusing device |
WO1998002117A1 (fr) * | 1996-07-15 | 1998-01-22 | Aesculap Ag & Co. Kg | Implant pour fusion de corps vertebraux |
WO1998048738A1 (fr) * | 1997-04-25 | 1998-11-05 | Stryker France S.A. | Implants intersomatiques en deux parties |
FR2812188A1 (fr) * | 2000-07-31 | 2002-02-01 | Spinevision Sa | Cage d'immobilisation du rachis et d'osteosynthese, procede de fabrication de ladite cage et equipement de forage pour l'implantation de ladite cage |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2701638A1 (fr) * | 2011-04-26 | 2014-03-05 | Alphatec Spine, Inc. | Système de fixation intersomatique autonome |
EP2701638A4 (fr) * | 2011-04-26 | 2014-10-08 | Alphatec Spine Inc | Système de fixation intersomatique autonome |
EP3225214A1 (fr) * | 2011-04-26 | 2017-10-04 | Alphatec Spine, Inc. | Système de fixation intersomatique autonome |
US10500058B2 (en) | 2011-04-26 | 2019-12-10 | Alphatec Spine, Inc. | Stand alone interbody fixation system |
Also Published As
Publication number | Publication date |
---|---|
US20050143733A1 (en) | 2005-06-30 |
FR2835739A1 (fr) | 2003-08-15 |
FR2835739B1 (fr) | 2004-05-14 |
US8142504B2 (en) | 2012-03-27 |
AU2003226878A1 (en) | 2003-09-04 |
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