WO2005046534A1 - Prothese totale de disque intervertebral - Google Patents
Prothese totale de disque intervertebral Download PDFInfo
- Publication number
- WO2005046534A1 WO2005046534A1 PCT/FR2004/002661 FR2004002661W WO2005046534A1 WO 2005046534 A1 WO2005046534 A1 WO 2005046534A1 FR 2004002661 W FR2004002661 W FR 2004002661W WO 2005046534 A1 WO2005046534 A1 WO 2005046534A1
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- WIPO (PCT)
- Prior art keywords
- intermediate element
- guide
- prosthesis
- prosthesis according
- elements
- 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
- A61F2/442—Intervertebral or spinal discs, e.g. resilient
- A61F2/4425—Intervertebral or spinal discs, e.g. resilient made of articulated components
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
- A61F2002/3006—Properties of materials and coating materials
- A61F2002/3008—Properties of materials and coating materials radio-opaque, e.g. radio-opaque markers
-
- 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
- A61F2002/30112—Rounded shapes, e.g. with rounded corners
- A61F2002/30133—Rounded shapes, e.g. with rounded corners kidney-shaped or bean-shaped
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30383—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove
- A61F2002/30387—Dovetail connection
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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
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30383—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove
- A61F2002/3039—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove with possibility of relative movement of the rib within the groove
- A61F2002/30392—Rotation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30383—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove
- A61F2002/3039—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove with possibility of relative movement of the rib within the groove
- A61F2002/30397—Limited lateral translation of the rib within a larger groove
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30383—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove
- A61F2002/3039—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove with possibility of relative movement of the rib within the groove
- A61F2002/30398—Sliding
-
- 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
- A61F2002/30878—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
- A61F2/44—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
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0015—Kidney-shaped, e.g. bean-shaped
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
- A61F2250/0096—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers
- A61F2250/0098—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers radio-opaque, e.g. radio-opaque markers
Definitions
- the invention relates to an intervertebral disc prosthesis intended to replace the natural disc ensuring the connection between two vertebrae of the spine.
- the intervertebral disks of the vertebral column consist of: a central element called nucleus pulposus enclosed in a fiber coil called annulus.
- the disc provides the connection between two vertebral bodies and controls the flexion, inclination and rotation movements of the spine. This disc is degraded by time, effort or certain degenerative diseases. This results in a settlement and / or a malfunction thereof. This can lead to different types of pathology causing multiple more or less intense pain as well as more or less significant handicaps.
- Elastomer-based prostheses have quickly shown the limits of this type of material in terms of longevity. Indeed, the various tests showed premature deterioration of the elastic elements in the presence. The technique therefore seems to be moving towards systems using conventional materials in orthopedic surgery (Chrome-Cobalt, high-density polyethylene, titanium).
- the prosthesis (described in the patent 2659226) perfectly allows the flexion and inclination movements of the spine, however it does not allow rotation along a vertical axis (called vertical rotation in the remainder of the document) because the natural axis this rotation is not at all confused with that of the prosthesis. This results in abnormal forces on the elements surrounding the joint (facet joints, ligaments) may cause pain and premature wear of these elements, it also results in a blockage of the vertical rotation of the joint.
- the adjacent joints must therefore compensate for this lack of rotation by working much more, this is even more true in the case of implantation of prostheses on several disks. Adjacent discs may therefore deteriorate faster resulting in the corresponding pathologies.
- the prosthesis (described in patent O / 00/53127) will easily allow the vertical rotation movement of the column through its horizontal plane contact. However, it is easy to understand that this plane contact does not guide the vertical rotation and that it allows translation movements (sliding towards the front of the upper plate) in the horizontal plane generating shear forces on the posterior elements of the spine (articular facets).
- the facet joints being particularly hyperalgic element it will result in significant posterior pain.
- the prosthesis (patent: DE 30 23 353) has the advantage of having two moving surfaces improving the qualities of resistance to wear, however its concept presents risks of loosening by the movement of the spacing of the plates during the movements of the prosthesis. Furthermore known prostheses have substantially planar elements in contact with the vertebrae which have no truly flat surfaces. This results in stress concentrations on small surfaces that sometimes cause impaction of the elements in the bodies of the vertebrae in contact.
- the present invention overcomes these disadvantages by providing a solution allowing and guiding the vertical axis rotation of the vertebral joint. This while avoiding pure forward translation movements of the superior vertebra with respect to the lower vertebra, which would induce harmful shear stresses to the posterior articular facets of the vertebral column.
- the present invention is an intervertebral disc prosthesis consisting of three elements, an upper plate, a lower plate and an intermediate element, which according to a first feature has at least one plate which has on its inner surface at least one guide to make slide the intermediate element in a substantially circular arc to allow the natural rotation relative to the vertical axis of the vertebral joint, the guidance may be complete or unilateral, that is to say, allow a coaptation in one direction only.
- the guide may have on its ends a flange for preventing the end of travel of the intermediate element.
- One of the plates has on its inner face a spherical cap in congruent contact with the spherical dome of the intermediate element to prevent translational movements.
- This feature can be broken down according to four non-limiting embodiments: (a) Prosthesis characterized in that the guide is a groove in which is housed a portion of the intermediate element. (b) Prosthesis characterized in that the guide is a rail which is housed in a part of the intermediate element. (c) Prosthesis characterized in that the guide is a shoulder allowing the possibility of coaptation of the intermediate element.
- the elements are made of materials already proven in orthopedic surgery to prevent premature deterioration of the elements.
- the invention is characterized in that at least one plate has on its external surface a prominent shape (a dome for example) which matches the shape of the vertebral body plate of the vertebra on contact, this is intended to avoid loosening and sinking of the prosthesis.
- the invention is characterized in that at least one plate has on the geometric center of its external face a preferably triangular mark intended to locate the position of the prosthesis in front view and in profile view by ray imaging. X to control the positioning of the prosthesis.
- the invention is characterized in that the lateral wall or walls of the guide have an inclination towards the inside or the outside in order to avoid the expulsion of the intermediate element.
- the invention is characterized in that the upper plate and the lower plate can be reversed.
- the intermediate element can be made in several parts, each having specific qualities: wear resistance, damping for example.
- the elements are made in the materials conventionally used in orthopedic surgery.
- the trays are made of alloy titanium, stainless steel, chrome-cobalt alloy or ceramic.
- the intermediate elements are polyethylene, ceramic, or any other material known for its qualities of resistance to wear and damping.
- the prosthesis consists of three elements (two plates and an intermediate element); the lower plate has on its upper face an arcuate groove receiving an intermediate polyethylene element which can slide freely along the groove, the upper face of the intermediate element has a convex shape in contact with the lower concave face of the upper plate.
- the upper plate has on its upper face a dome positioned substantially in the middle of the surface. Each plate has at the geometric center of its external surface a small flat triangle.
- the trays have on their periphery, holes, notches or special shapes for receiving instruments for placing the prosthesis.
- the materials used for the fabrication of the prosthesis are those generally used in orthopedic surgery, the trays are in titanium alloy or in a chromium-cobalt alloy, the intermediate element is in high density polyethylene or in any other material known for its qualities. of resistance to wear, the trays will be coated on their outer surface of porous titanium and / or hydroxyapatite.
- Figure l (case of the solution (a)) represents the prosthesis with a groove (9) in the lower plate (2) in which is housed an intermediate element (3). This is a profile view in section. The vertebrae (1 ⁇ 1) and (102) in contact are also shown in profile view.
- FIG. 2 (case of the solution (a)) represents the intermediate element (3) and the lower plate (2) with its groove (9) in plan view with the adjacent vertebrae (101) and (102) modeled in order to define the position of the natural center of rotation of vertical axis (100).
- Figure 3 (case of the solution (a)) represents the prosthesis with the groove (9) in the lower plate (2) in section AA.
- FIG. 4 (case of solution (b)) represents the prosthesis with a rail (9) in the lower plate (2) on which part of the intermediate element (3) is housed in profile view (BB section) implanted between two vertebrae (101) and (102).
- Figure 5 (case of solution (b)) represents the prosthesis in section AA.
- Figure 6 (case of solution (b)) represents the intermediate element (3) and the lower plate (2) with its rail (9) in plan view with the adjacent vertebrae (101) and (102) modeled so to define the position of the natural center of rotation of vertical axis (100).
- Figure 7 (case of the solution (c)) represents the prosthesis with the shoulder (9) acting as a guide in the lower plate (2) in section BB, in profile.
- Figure 8 (case of the solution (c)) represents the lower plate (2) with its shoulder (9) and the intermediate element (3) in plan view, in addition the vertical axis of rotation (100) of the vertebrae is represented.
- Figure 9 (case of the solution (d)) represents the prosthesis with the rail (9) in the lower plate (2) and the groove (13) in the intermediate element (3) in section BB, in profile.
- Figure 10 (case of the solution (d)) represents the lower plate (2) with its rail (9) and the intermediate element (3) with its groove (13) oversized, seen from above.
- Figure 11 shows a section of the assembly consisting of the plate (1,2), the guide (9) and the intermediate element (3).
- the device relates to the first embodiment (a), it comprises a lower plate (2) in which is cut a groove (9) of curved shape (in a circular arc for example), an intermediate element (3) is placed in this groove so that it can slide therein in accordance with the rotational movement (20O) of axis (100).
- This intermediate element (3) has on its upper part a convex spherical surface (8) which comes into contact with the upper plate (1) on its inner surface (7) concave spherical.
- the lower plate (2) has in the middle of its outer surface (10) a projection (5) (triangular for example) intended to be identified by X-ray face control and profile.
- the upper plate (1) has on its outer surface (4) a domed shape to conform to the shape of the overlying vertebrae plate (101).
- the upper plate (1) comprises in the middle of its outer surface (4) a preferably triangular projection (5) intended to be identified by a X-ray face and profile control.
- FIG. 1 shows that the upper plate (1) has a movement of rotation (300) relative to the lower plate (2) substantially corresponding to the sliding of the facet joints (103) of the vertebrae (101) and (102), it is the bending movement of the spine.
- FIG. 2 shows that the intermediate element (3) describes a rotational movement (200) of axis (100) on the lower plate (2) substantially corresponding to the sliding of the articular facets (103) of the vertebrae (101) and (102).
- the dome shape (8) of the intermediate element (3) drives in its rotational movement (200) the upper plate (1), it is the rotational movement of the spine.
- the upper plate (1) describes a rotational movement (400) relative to the lower plate (2). This is the lateral tilt movement of the spine.
- FIGS. 5 and 6 the device relates to the second embodiment (b). Its characteristics and operation are identical or similar to the first embodiment (a) except that the male and female parts of the guide system between the lower plate and the intermediate element are reversed.
- the device relates to the third embodiment (c).
- the device allows the intermediate element (3) to be guided in rotation of vertical axis (100) relative to the lower plate (2), but moreover, it can slide backwards on the inner surface (15) of the lower plate (2). In these movements it drives the upper plate (1) through the contact between its spherical dome (8) and the inner surface (7) concave spherical upper plate (1). This spherical contact serves as in the previous cases to reproduce the flexion and lateral inclination of the spine.
- the device relates to the fourth embodiment (d).
- the device allows the intermediate element (3) to be guided in rotation of vertical axis (100) relative to the lower plate (2), but moreover, it can slide backwards on the inner surface (15) of the lower plate (2). In these movements it drives the upper plate (1) through the contact between its spherical dome (8) and the inner surface (7) concave spherical upper plate (1).
- This spherical contact serves as in the previous cases to reproduce the flexion and lateral inclination of the spine.
- the guide (9) preferably has one or more side walls inclined inwardly or outwardly to prevent expulsion of the intermediate member (3).
- the device may have dimensions of 28 mm in length by 35 mm in width with an average height of 10 mm and an angle in profile of 7 °. The invention described above is intended for surgery of the spine.
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- 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
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0312647A FR2861581B1 (fr) | 2003-10-29 | 2003-10-29 | Prothese totale de disque intervertebral |
FR0312647 | 2003-10-29 |
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WO2005046534A1 true WO2005046534A1 (fr) | 2005-05-26 |
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PCT/FR2004/002661 WO2005046534A1 (fr) | 2003-10-29 | 2004-10-19 | Prothese totale de disque intervertebral |
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US7695516B2 (en) | 2004-12-22 | 2010-04-13 | Ldr Medical | Intervertebral disc prosthesis |
US7842088B2 (en) | 2005-09-23 | 2010-11-30 | Ldr Medical | Intervertebral disc prosthesis |
US7927374B2 (en) | 2004-06-30 | 2011-04-19 | Synergy Disc Replacement, Inc. | Artificial spinal disc |
US8002835B2 (en) | 2004-04-28 | 2011-08-23 | Ldr Medical | Intervertebral disc prosthesis |
US8038716B2 (en) | 2004-06-30 | 2011-10-18 | Synergy Disc Replacement, Inc | Artificial spinal disc |
US8137404B2 (en) | 2006-03-28 | 2012-03-20 | Depuy Spine, Inc. | Artificial disc replacement using posterior approach |
US8267999B2 (en) | 2002-11-05 | 2012-09-18 | Ldr Medical | Intervertebral disc prosthesis |
US8282641B2 (en) | 2006-03-28 | 2012-10-09 | Depuy Spine, Inc. | Methods and instrumentation for disc replacement |
US8343219B2 (en) | 2007-06-08 | 2013-01-01 | Ldr Medical | Intersomatic cage, intervertebral prosthesis, anchoring device and implantation instruments |
US8439931B2 (en) | 2005-06-29 | 2013-05-14 | Ldr Medical | Instrumentation and methods for inserting an intervertebral disc prosthesis |
US8454699B2 (en) | 2004-06-30 | 2013-06-04 | Synergy Disc Replacement, Inc | Systems and methods for vertebral disc replacement |
US8465546B2 (en) | 2007-02-16 | 2013-06-18 | Ldr Medical | Intervertebral disc prosthesis insertion assemblies |
US8715352B2 (en) | 2006-12-14 | 2014-05-06 | Depuy Spine, Inc. | Buckling disc replacement |
US8858635B2 (en) | 2004-02-04 | 2014-10-14 | Ldr Medical | Intervertebral disc prosthesis |
US9237958B2 (en) | 2004-06-30 | 2016-01-19 | Synergy Disc Replacement Inc. | Joint prostheses |
US9265618B2 (en) | 2005-11-30 | 2016-02-23 | Ldr Medical | Intervertebral disc prosthesis and instrumentation for insertion of the prosthesis between the vertebrae |
US9333095B2 (en) | 2001-05-04 | 2016-05-10 | Ldr Medical | Intervertebral disc prosthesis, surgical methods, and fitting tools |
US9675389B2 (en) | 2009-12-07 | 2017-06-13 | Samy Abdou | Devices and methods for minimally invasive spinal stabilization and instrumentation |
US10548740B1 (en) | 2016-10-25 | 2020-02-04 | Samy Abdou | Devices and methods for vertebral bone realignment |
US10575961B1 (en) | 2011-09-23 | 2020-03-03 | Samy Abdou | Spinal fixation devices and methods of use |
US10603185B2 (en) | 2004-02-04 | 2020-03-31 | Ldr Medical | Intervertebral disc prosthesis |
US10695105B2 (en) | 2012-08-28 | 2020-06-30 | Samy Abdou | Spinal fixation devices and methods of use |
US10857003B1 (en) | 2015-10-14 | 2020-12-08 | Samy Abdou | Devices and methods for vertebral stabilization |
US10918498B2 (en) | 2004-11-24 | 2021-02-16 | Samy Abdou | Devices and methods for inter-vertebral orthopedic device placement |
US10973648B1 (en) | 2016-10-25 | 2021-04-13 | Samy Abdou | Devices and methods for vertebral bone realignment |
US11006982B2 (en) | 2012-02-22 | 2021-05-18 | Samy Abdou | Spinous process fixation devices and methods of use |
US11173040B2 (en) | 2012-10-22 | 2021-11-16 | Cogent Spine, LLC | Devices and methods for spinal stabilization and instrumentation |
US11179248B2 (en) | 2018-10-02 | 2021-11-23 | Samy Abdou | Devices and methods for spinal implantation |
CN117084832A (zh) * | 2023-10-16 | 2023-11-21 | 北京爱康宜诚医疗器材有限公司 | 一种脊柱小关节假体 |
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WO1999053871A1 (fr) * | 1998-04-23 | 1999-10-28 | Cauthen Research Group, Inc. | Implant spinal articule |
US6368350B1 (en) * | 1999-03-11 | 2002-04-09 | Sulzer Spine-Tech Inc. | Intervertebral disc prosthesis and method |
EP1344508A1 (fr) * | 2002-03-12 | 2003-09-17 | Waldemar Link (GmbH & Co.) | Prothèse intervertébrale en particulier pour la colonne cervicale |
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- 2003-10-29 FR FR0312647A patent/FR2861581B1/fr not_active Expired - Fee Related
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EP0560141A1 (fr) * | 1992-03-13 | 1993-09-15 | Waldemar Link (GmbH & Co.) | Endoprothèse pour disques intervertébraux |
WO1999053871A1 (fr) * | 1998-04-23 | 1999-10-28 | Cauthen Research Group, Inc. | Implant spinal articule |
US6368350B1 (en) * | 1999-03-11 | 2002-04-09 | Sulzer Spine-Tech Inc. | Intervertebral disc prosthesis and method |
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US11957598B2 (en) | 2004-02-04 | 2024-04-16 | Ldr Medical | Intervertebral disc prosthesis |
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US8454699B2 (en) | 2004-06-30 | 2013-06-04 | Synergy Disc Replacement, Inc | Systems and methods for vertebral disc replacement |
US8852193B2 (en) | 2004-06-30 | 2014-10-07 | Synergy Disc Replacement, Inc. | Systems and methods for vertebral disc replacement |
US8231677B2 (en) | 2004-06-30 | 2012-07-31 | Synergy Disc Replacement, Inc. | Artificial spinal disc |
US10064739B2 (en) | 2004-06-30 | 2018-09-04 | Synergy Disc Replacement, Inc. | Systems and methods for vertebral disc replacement |
US9237958B2 (en) | 2004-06-30 | 2016-01-19 | Synergy Disc Replacement Inc. | Joint prostheses |
US9125754B2 (en) | 2004-06-30 | 2015-09-08 | Synergy Disc Replacement, Inc. | Artificial spinal disc |
US10786362B2 (en) | 2004-06-30 | 2020-09-29 | Synergy Disc Replacement, Inc. | Systems and methods for vertebral disc replacement |
US8894709B2 (en) | 2004-06-30 | 2014-11-25 | Synergy Disc Replacement, Inc. | Systems and methods for vertebral disc replacement |
US7927374B2 (en) | 2004-06-30 | 2011-04-19 | Synergy Disc Replacement, Inc. | Artificial spinal disc |
US8100974B2 (en) | 2004-06-30 | 2012-01-24 | Synergy Disc Replacement, Inc. | Artificial spinal disc |
US8038716B2 (en) | 2004-06-30 | 2011-10-18 | Synergy Disc Replacement, Inc | Artificial spinal disc |
US8172904B2 (en) | 2004-06-30 | 2012-05-08 | Synergy Disc Replacement, Inc. | Artificial spinal disc |
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US8282641B2 (en) | 2006-03-28 | 2012-10-09 | Depuy Spine, Inc. | Methods and instrumentation for disc replacement |
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US10188528B2 (en) | 2007-02-16 | 2019-01-29 | Ldr Medical | Interveterbral disc prosthesis insertion assemblies |
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Also Published As
Publication number | Publication date |
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FR2861581A1 (fr) | 2005-05-06 |
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