EP4171408A2 - Dispositif de fixation deformable elastiquement - Google Patents
Dispositif de fixation deformable elastiquementInfo
- Publication number
- EP4171408A2 EP4171408A2 EP21734364.9A EP21734364A EP4171408A2 EP 4171408 A2 EP4171408 A2 EP 4171408A2 EP 21734364 A EP21734364 A EP 21734364A EP 4171408 A2 EP4171408 A2 EP 4171408A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- hollow body
- implant
- fixing
- bone
- fixing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- 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
- A61B17/844—Fasteners therefor or fasteners being internal fixation devices with expandable anchors or anchors having movable parts
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/686—Plugs, i.e. elements forming interface between bone hole and implant or fastener, e.g. screw
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0012—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the material or composition, e.g. ceramics, surface layer, metal alloy
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
- A61C8/0033—Expandable implants; Implants with extendable elements
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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
- A61F2/38—Joints for elbows or knees
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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
- A61F2/38—Joints for elbows or knees
- A61F2/3859—Femoral 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
- A61F2/38—Joints for elbows or knees
- A61F2/389—Tibial 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
- A61F2/42—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
- A61F2/4241—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers
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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
- A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
- A61F2002/3006—Properties of materials and coating materials
- A61F2002/30092—Properties of materials and coating materials using shape memory or superelastic materials, e.g. nitinol
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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
- A61F2002/30205—Three-dimensional shapes conical
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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
- A61F2002/30205—Three-dimensional shapes conical
- A61F2002/3021—Three-dimensional shapes conical frustoconical
-
- 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
- A61F2002/30291—Three-dimensional shapes spirally-coiled, i.e. having a 2D spiral cross-section
-
- 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
- A61F2002/30316—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
- A61F2002/30594—Special structural features of bone or joint prostheses not otherwise provided for slotted, e.g. radial or meridian slot ending in a polar aperture, non-polar slots, horizontal or arcuate slots
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30667—Features concerning an interaction with the environment or a particular use of the prosthesis
- A61F2002/30677—Means for introducing or releasing pharmaceutical products, e.g. antibiotics, into the body
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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
- A61F2002/3082—Grooves
- A61F2002/30827—Plurality of 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
- A61F2/30907—Nets or sleeves applied to surface of prostheses or in cement
- A61F2002/30909—Nets
- A61F2002/30912—Nets made of expanded metal, e.g. diamond mesh or metal nets having lozenge-shaped apertures
Definitions
- the present invention relates to the field of medical devices, and relates more particularly to an elastically deformable fixing device intended to be inserted into a housing, or a cavity, in particular formed in the bone in order to allow the placement of an implant. .
- the invention also relates to a kit comprising such a fixing device, the associated implant and an elastic deformation means to allow the positioning of said device in said housing.
- Bone loss can follow simple tissue aging, bone trauma, or even curative surgery.
- the devices are generally attached to bone tissue by screwing, or are implanted in pre-drilled holes and expand through mechanical means to lock into the bone. It has also been shown that by treating the surface of the material used, such as titanium, by sandblasting, acid etching, electroerosion, laser bombardment, etc., so as to create microrugosities, the adhesion of bone cells is promoted. on the implant, accelerating the formation of bone on the implant and therefore healing, even in the case of weak bone.
- the material used such as titanium
- the dynamics of bone healing are variable depending on the individual and the anatomical, biological (age, medications, etc.), pathological (bacterial, viral), behavioral (smoking, hygiene, addictions, etc.) circumstances. ), traumatic (placement of an implant), and it is difficult to predict the success of the implantation.
- the causes of failure are difficult to dissociate from the quality of the bone tissues, but the improvement of osseointegration cannot be sought by the sole modification of the conditions and treatments of the surfaces of the implant.
- the avenues for improvement of implanted devices are linked to the reduction / elimination of peri-implant bone loss, to the rigor / quality of execution of the protocol by the practitioner.
- the present invention therefore aims to remedy the aforementioned drawbacks and to propose a new device for fixing implants which can be fixed in a robust and lasting manner in the bone.
- the invention relates to a device for use as an anchoring system for enabling the attachment of an implant to or to skeletal bones of a mammal, human or animal, and methods of placing such an implant. device.
- the present invention relates more specifically to a fastening device capable of changing shape during its use and more particularly when it is put in place.
- the invention relates to a fixing device, intended to be interposed between a bone tissue and an implant (functional element) so as to promote osseointegration of said implant and to reduce peri-implant bone loss.
- This fixing device makes it possible to improve the connection with the bone tissues to promote a durable and robust implantation of said device. More precisely, the fixing device according to the invention, by its elastic deformations, allows micro displacements of the device relative to the surrounding tissues, which promotes the reconstruction of the bone tissue around said device and reduces the risks of peri-implant bone loss. .
- This fixing device is particularly suitable for the osseointegration of dental implants.
- the device according to the invention has a generally tubular shape, leaving a housing delimited by a wall of flexible material.
- the part of the device comprising said housing, elastic and deformable is intended to be housed and maintained in a bone cavity and to receive the implant itself.
- the geometry of the device, and more particularly of the part of the device comprising the housing is adapted to the bone cavity in which it is to be housed.
- the outer contours of the part of the device comprising the housing will match the contours of the tissues bordering the cavity formed in the bone tissue opposite the tooth to be replaced by a dental implant.
- the geometry (thickness, height, structure) of the fixing device advantageously takes into account the surrounding bone tissue, the loads and deformations to which it will be subjected, etc.
- the objective of the invention is to simplify bone rehabilitation by limiting the difficulties of surgical acts and by reducing the associated costs.
- the fixing device By allowing an elastic connection with the surrounding bone tissues, the fixing device according to the invention allows:
- the invention also relates to kits, methods and tools, usable for the placement, of the fixation devices and implants.
- the invention relates very particularly to a fixing device for implants, comprising an open proximal part, a distal part and a central hollow body extending between the proximal part and the distal part, said hollow body forming a housing extending along a line.
- said device being made of elastic material and said hollow body being elastically deformable by axial elongation along the longitudinal axis X so as to pass from an unstressed state to a stressed state and vice versa, in which a length L of the body hollow in the unstressed state is less than a length L 'of said hollow body in the stressed state, and a diameter D of the hollow body in the unstressed state is greater than a diameter D' of said hollow body in the unstressed state. constrained.
- distal and proximal are understood to mean with respect to the position that the fixing device must have once it has been placed in a bone cavity.
- distal end of the device is the end furthest from the mouth of the bone cavity, the proximal part being the part intended to be flush with or out of said cavity when the device is in position in the cavity.
- internal and exital are understood to be relative to the housing provided in the hollow body of the device.
- a so-called internal element is therefore located inside said housing, or more generally inside the device, an external element being located outside said housing, or more generally outside the device.
- implant is understood to mean any single structure or assembly of structures configured to be bonded or fixed to the fixation device.
- a dental implant is understood to mean the structure carrying the false tooth, which is inserted into the fixing device.
- prosthesis is understood to mean the assembly formed by at least one implant, at least one fixing device and optionally the other elements which compose it, the purpose of which is to be placed in the organism to restore a function. compromised.
- a dental prosthesis comprises a fixing device according to the invention and a dental implant, the dental implant carrying the crown (false tooth) being inserted into the fixing device. Examples of prostheses according to the invention are illustrated by Figures 6, 7, and 8.
- the length of the hollow body designates the largest dimension of said hollow body, extending along the longitudinal axis X.
- the diameter of the hollow body designates the largest dimension of said hollow body extending in a plane transverse to the longitudinal axis X .
- the hollow body has a generally tubular shape.
- the wall of the hollow body delimiting the housing is perforated.
- the wall of the hollow body comprises at least one longitudinal slot and / or at least one helical slot.
- the wall of the hollow body comprises at least two helical slots, of identical, different or inverted pitches.
- the wall of the hollow body is in the form of a trellis.
- the distal part of the fixing device intended to be in contact with the bottom of the bone cavity, has a conical or frustoconical cylindrical shape.
- a distal end of the distal portion is closed.
- the distal end of the distal part is pierced, that is to say a through orifice is formed in a wall of said end, making it possible to communicate the interior of the hollow body with the the external environment (and more particularly the bone cavity) in which said fixing device will be inserted.
- the distal part of the fixing device forms a base, possibly pierced.
- an inner surface of the distal portion is substantially smooth, in that it is devoid of any thread or other attachment surface.
- an internal surface of the wall of the hollow body comprises a fixing surface for fixing an implant in said hollow body.
- the fixing surface extends over a partial length of the wall of the hollow body.
- the fixing surface extends over at most 1/4, at most 1/3 or at most 1 ⁇ 2 of the length of the hollow body.
- the fixing surface extends in a proximal part of the hollow body, making the junction with the proximal part of the fixing device.
- the fixing surface intended for fixing an implant in said hollow body is provided in the proximal part of the fixing device.
- the term “elastic material” is understood to mean a material capable of being elastically deformed when it is subjected to an external stress, such as traction, compression, torsion, and the like.
- the term “elastic material” is understood to mean a material having a Young's modulus of between 10 4 and 10 11 Pascal.
- the elastic material constituting all or part of the device according to the invention is one from a polymer, titanium or one of its alloys, preferably an alloy of titanium, niobium and zirconium.
- the material is chosen from biocompatible materials, or biomaterials. Those skilled in the art are able to choose a suitable elastic material, depending in particular on the stresses to which the device will have to be subjected due to its use.
- the device according to the invention advantageously exhibits a variation in length between the length L and the length L 'of between 0.1 and 2 millimeters and / or a variation of diameter between diameter D and diameter D 'between 0.01 and 1 millimeter.
- the wall of the hollow body can typically have a tensile yield strength of between 10 8 and 10 10 Pascal, and a Young's modulus of between 2.10 10 and 30.10 10 Pascal, in particular a Young's modulus of between 4.10 10 and 30.10 10 Pascal, preferably between 6.5.10 10 and 7. 10 10 Pascal.
- the housing of the hollow body is suitable for receiving a dental implant. In other embodiments, the housing of the hollow body is adapted to receive an orthopedic implant.
- the invention also relates to a fixing kit comprising a fixing device according to the invention and an elastic deformation means, such as a screw or a piston, configured to elastically deform by axial elongation the hollow body of the fixing device. so that said hollow body changes from an unconstrained state to a constrained state or vice versa.
- an elastic deformation means such as a screw or a piston
- Figure 1 is a schematic representation of an embodiment, in a side view (A), in longitudinal section along the X axis (B) or in a 3/4 front right view (C), of the fixing device according to the invention, according to which the fixing device is of frustoconical shape and has longitudinal slots.
- Figure 2 shows the steps of implantation of the fixing device in a bone cavity, according to one of the embodiments of the invention.
- Figure 3 is a schematic representation of a fixing device according to the invention of frustoconical shape having helical slots in a side view (A), a longitudinal sectional view along the X axis (B) or 3/4 view front right (C).
- Figure 4 is a schematic representation of embodiments of a fixing device according to the invention, according to which the wall of the fixing device has a trellis.
- Figure 5 is a schematic representation in longitudinal section along the X axis of two embodiments of the distal part of the fixing device according to the invention, having a closed distal end (A), a pierced distal end (B).
- Figure 6 is a schematic representation of an embodiment of the fixing device according to the invention, allowing the establishment of a dental prosthesis.
- Figure 7 is a schematic representation of an embodiment of the fixing device according to the invention, allowing the establishment of a knee prosthesis.
- Figure 8 is a schematic representation of an embodiment of the fixing device according to the invention, allowing the placement of a prosthesis of a joint of a finger.
- the present invention provides a fixation device for implants, comprising an open proximal portion, a distal portion and a central hollow body extending between the proximal portion and the distal portion.
- the device according to the invention is advantageously in one piece, that is to say that it is formed in one piece.
- the device comprises several elements secured to one another.
- the proximal part and / or the distal part can be attached and fixed to the central part.
- the fixation device is an endosseous device, allowing the fixation of an orthopedic implant or of a dental implant.
- the implant is a bone implant, such as an orthopedic implant, for example an articular implant, in particular a finger or knee joint implant, or a dental implant.
- an orthopedic implant for example an articular implant, in particular a finger or knee joint implant, or a dental implant.
- the wall of the hollow body forms a hollow enclosure, a housing, a cavity or a lumen in the fixing device, which extends along a longitudinal axis X.
- This cavity is intended to receive an implant.
- the fixing surface intended to keep the implant in position in the cavity extends over only a part of the hollow body.
- the fixation surface comprises an internal thread for screwing in an implant
- said internal thread extends only over a partial length of the internal surface of the hollow body, in particular over 1 ⁇ 4, 1/3 or 1 ⁇ 2 of the length of the surface. internal hollow body.
- the device according to the invention is made of an elastic material.
- the wall of the hollow body of the device is made of an elastic material and is elastically deformable by axial elongation along a longitudinal axis X, so as to pass from an unconstrained state to a stressed state and vice versa.
- Elastic deformation is understood here to mean the property of a solid material to regain its original shape after having been deformed or constrained.
- Elastic strain is reversible strain, generally proportional to the applied stress.
- the fixing device according to the invention deforms when stresses or forces are applied to it and recovers its initial shape and geometry when these constraints are no longer exerted.
- the device according to the invention can be stretched along its longitudinal axis and regains its initial shape at rest. This stretched or extended position corresponds to the state or to the constrained or tensioned position of the fixing device.
- the original position, the return position or the rest position correspond to the unconstrained state or position.
- the length L of the hollow body represents its average length in the unconstrained state.
- the length L 'of the hollow body represents its average length in the stressed state. This length is measured along the longitudinal axis X which extends on either side of the proximal and distal ends of the device.
- the diameter D of the hollow body corresponds to the diameter in the unconstrained state.
- the elastic material forming the hollow body of the fixing device is such that it allows an increase in length between a length L in the unstressed state and a length L 'in the strained state, that is to say say that the length L ′ is greater than the length L.
- this variation in length is advantageously between 0.1 and 2 millimeters, preferably between 0.1 and 1 millimeter.
- the change from the unstressed state to the strained state also varies the size of the diameter of the device according to the invention, between a diameter D in the unstressed state and a diameter D ′ in the strained state.
- the diameter D ' is less than the diameter D.
- this variation in diameters between the diameter D and the diameter D' is advantageously between 0.01 and 1 millimeter, preferably between 0.1 and 0.5 millimeters.
- the central part of the hollow body is the most deformable part of the fixing device.
- the wall of the hollow body may have a lower thickness at the level of the most central part of the hollow body compared to the thickness of said wall on either side of this most central part, in order to further facilitate its deformation.
- thickness is meant the dimension of the wall extending perpendicular to the longitudinal axis X.
- the diameter D of the hollow body at the level of its most central part is greater than the diameter of said hollow body on either side of this most central part.
- the diameter of the hollow body is advantageously greater than that of the distal end of the fixing device.
- the central part of the hollow body comprises a shoulder or a bulge so as to locally increase the diameter of the central part.
- the fixing device has a cross-section of any shape, such as a round, ovoid, square, polygonal or triangular shape, suitable for forming an internal cavity or housing.
- the cross section of the device is round or ovoid in shape.
- the fixing device can be of any general shape suitable for the implantation zone, that is to say the bone cavity in which it is to be inserted.
- the fixing device has a generally tubular, cylindrical, cylindro-conical, conical or frustoconical shape.
- the hollow body of the device has a generally tubular, cylindrical, cylindro-conical, conical or frustoconical shape.
- the distal part of the fixing device according to the invention may have a conical or frustoconical cylindrical shape, in particular in order to facilitate its implantation in the bone.
- the distal part of the fixing device can have a tapered distal end in order to be able to be inserted into a bone, such as a cancellous bone not prepared by drill.
- the distal part of the fixation device is not intended to hold an implant in position, so that the internal surface of said distal part is devoid of any fixation surface.
- the distal end of the distal portion of the fixation device can be closed, open, or pierced.
- the distal end of the device is pierced, in particular to allow the circulation of fluids and gas through the fixing device.
- the proximal portion of the fixation device comprises a hollow fixation head through which an implant will be inserted into the hollow body of the fixation device.
- the proximal part is open and opens into the housing of the hollow body.
- the opening of the fixing head advantageously extends in the extension of the housing of the hollow body.
- the proximal part comprises a fixing head of flared or frustoconical shape, or in the form of a flat disc or washer.
- the proximal part can also have at least locally a diameter greater than the average diameter of the hollow body, in order to reduce the risks of damage to the surrounding tissues and to prevent the fixing device from sinking completely into the cavity formed in the hollow body. bone.
- the fixing head can come to rest against the bone wall which borders the mouth of the cavity formed in the bone.
- the fixing device is in one piece.
- the entire device is made of elastic material.
- the fixing device comprises at least two blocks, one formed by the fixing head, and another comprising the hollow body and optionally the distal part (which may otherwise form a third block).
- the fixing head can be made of elastic or rigid material, the hollow body being in all cases of elastic material.
- all or part of the outer surface of the fixing device may have a rough appearance.
- the rough surface finish promotes cell adhesion and proliferation, allowing improved osseointegration of the fixation device.
- the external surface of the fixing device does not have an internal thread. Indeed, the fixing device is intended to be maintained in a bone cavity by close contact with the surrounding tissue, and in no case by screwing into said bone tissue.
- the wall of the hollow body delimiting the housing is perforated, in the sense that it is pierced with one or more holes, slots or the like, in the thickness of the wall.
- the purpose of this is in particular to allow the bone cells to penetrate inside the housing and to improve the retention of the fixing device in place in the cavity formed in the bone.
- the wall of the hollow body comprises at least one longitudinal slot.
- the wall of the hollow body is perforated by means of a plurality of longitudinal slots.
- the wall of the hollow body comprises at least one helical slot. More particularly, the wall of the hollow body can comprise at least two helical slots of identical, different or inverted pitches.
- the outer surface of the wall of the hollow body has ribs, or longitudinal protuberances. These ribs make it possible to locally change the flexibility by increasing the rigidity of the hollow body at the level of said ribs. The ribs also make it possible to adjust the contact of the device with the wall of the cavity formed in the bone and to play on the contact areas of the fixing device / bone tissue.
- the ribs or protuberances can be locally perforated.
- the ribs can be alternated with longitudinal slots. These ribs can be provided on all types of fixing devices considered here.
- the wall of the hollow body is in the form of a trellis, a mesh or a mesh.
- the meshes of the trellis can take a round, square or triangular shape depending on the envisaged application.
- the mesh pattern can be more or less tight depending on the shape and size of the fastening device.
- the internal surface of the wall of the hollow body may comprise a fixing surface intended for fixing and maintaining in position of an implant in said hollow body.
- the internal surface of the wall of the hollow body may have a screw thread, or tapping, suitable for receiving an implant having the shape of a complementary screw.
- a system of threading, clips or coincident teeth can also be considered.
- the internal surface of the wall of the hollow body has ridges hollowed out in the thickness of the wall and intended to receive a filling material to hold the implant in the housing by sealing.
- the opening of the proximal part is connected to the housing of the hollow body by means of a neck comprising a means for fixing an implant.
- a neck comprising a means for fixing an implant.
- only said neck comprises means for fixing the implant, the rest of the hollow body being devoid of such fixing means.
- the means for fixing the implant in the hollow body advantageously extend only over a partial length of said hollow body.
- the internal surface of the neck located between the opening of the proximal part and the hollow body may have a thread suitable for receiving an implant having a complementary thread.
- a system of threading, clips or coincident teeth can also be considered.
- the neck located between the opening of the proximal part and the hollow body comprises a thread extending from said proximal part towards the hollow body.
- biocompatible material which has structural and elastically deformable properties can be considered to form the device according to the invention, such as, but not limited to, nickel and its alloys, nitinol, titanium and its alloys including niobium and / or zirconium, stainless steel, polymers, such as PolyEtherEtherKetone, silicone and polyethylene elastomers.
- the elastic material forming the fixing device is one of a polymer, titanium or one of its alloys, preferably an alloy of titanium, niobium and zirconium.
- the material forming the fixing device is an alloy based on titanium, niobium and zirconium, which preferably allows a reduction in the Young's modulus (Young's modulus around 80GPa).
- the elastic material constituting the fixing device in particular the wall of the hollow body, has a tensile elastic limit of between 10 8 and 10 10 Pascal.
- the elastic material constituting the fixing device, in particular the wall of the hollow body has a Young's modulus of between 2.10 10 and 30.10 10 Pascal.
- the fixing device can be covered with a composition which promotes implantation.
- a composition which promotes implantation.
- Such a composition advantageously coats the external surface and / or the internal surface of the device.
- This composition can for example contain one or more antibiotics, to decontaminate the implant site; an unsaponifiable and / or one or more vitamins to promote collagen healing, one or more growth factors to accelerate wound healing, one or more hemostatic components, and any combination including these.
- the invention also relates to a kit comprising at least one fixing device as described above, and an elastic deformation means, such as a screw or a piston, configured to elastically deform the body by elongation or axial traction. hollow of the fixing device, so that said hollow body changes from an unconstrained state to a stressed state.
- the kit may further include a means for gripping the device, such as a forceps, to facilitate insertion of the fixation device into the bone.
- the kit comprises at least one fixation device according to the invention and one or more reusable or disposable surgical instruments for piercing the bone, actuating the fixation device and placing it in the bone and / or placing it in the bone. in place an implant.
- the kit can further comprise at least one implant, in particular an orthopedic implant, for example a knee joint implant or a finger joint, or a dental implant.
- the implant can be in one piece or formed of several interconnected parts.
- the kit includes:
- an instrument intended for bone preparation in particular an instrument for piercing the bone intended to receive the fixing device according to the invention
- an implant preferably a dental implant or a finger or knee joint implant,
- an instrument intended for gripping and handling the fixation device and / or the implant
- the invention also relates to a prosthesis, comprising at least one fixing device according to the invention.
- the prosthesis further comprises at least one implant, intended to be inserted into the fixation device.
- the prosthesis comprises a fixing device according to the invention and an implant.
- the prosthesis is a dental prosthesis, and comprises a fixing device according to the invention and a dental implant, such as a crown or false tooth.
- the prosthesis comprises two fixing devices according to the invention.
- the prosthesis comprises two fixing devices according to the invention and at least one joint implant.
- the prosthesis comprises two fixing devices according to the invention and two complementary implants capable of forming an articular joint.
- the present fixation device can be used for any type of joints of a subject, in particular in order to allow the junction between two bone ends and to restore a compromised function of the organism.
- the prosthesis according to the invention can be a prosthesis of a joint of a finger, such as an interphalangeal or metacarpophalangeal joint.
- the fixing device according to the invention is particularly suitable for receiving an implant intended to replace the metacarpophalangeal joint.
- the joint prosthesis is composed of two fixing devices according to the invention and two complementary implants, one taking the form of the distal part of a metacarpal bone and the other taking the form of the proximal part of the first. phalanx.
- the implant intended to be inserted into the fixing devices is in one piece and comprises an artificial metacarpophalangeal joint made up of the elements described above.
- the prosthesis according to the invention can be a knee joint prosthesis.
- the fixing device according to the invention is particularly suitable for receiving an implant intended to replace the knee joint.
- the joint prosthesis is composed of two fixing devices according to the invention and of two complementary implants, one taking the form of the distal part of the femur and the other of the proximal part of the tibia.
- the prosthesis can further include an artificial patella.
- the implant intended to be inserted into the fixing devices is in one piece.
- the invention also relates to a method of implanting the fixation device according to the invention in a bone.
- the invention relates to a surgical method allowing the placement of a fixing device for an implant in a bone.
- the invention also relates to a surgical method allowing the placement of an implant via the fixation device according to the invention.
- the method comprises a preliminary step according to which an implantation housing is provided in a bone.
- the production of the implantation housing intended to receive the fixing device according to the invention may particularly include a drilling step during which the bone is reamed.
- the diameter of the implantation housing hollowed out in the bone corresponds substantially to the diameter D 'of the fixation device in the extended state, that is to say in the constrained state, so as to allow the introduction of the device in the implantation housing with very limited efforts and stresses on the surrounding tissues.
- the device is stretched along a longitudinal axis X, so as to increase its length and reduce its diameter.
- the elongation of the device is carried out by any type of compatible means known to those skilled in the art, in particular by axial traction, preferably by means of an instrument allowing deformation, such as a screw or a piston.
- the method then comprises a step of placing the fixing device in the implantation housing provided in the bone.
- the practitioner can in particular introduce the fixing device using a suitable gripping instrument, for example of the clamp type.
- the device is then released into the housing and assumes a less or unconstrained conformation.
- the relaxation of the device allows the fixation device to be locked by tight contact with the wall of the bone cavity.
- the device according to the invention comes into contact with the surrounding tissues and fits into the bone cavity.
- the relaxation of the device generates radial compression of the surrounding tissue, which provides stabilization and adhesion at the bone tissue-fixation device interface. This primary mechanical connection can be compared to a “press-fit” type fastening, controlled.
- the external wall of the device ensures the transfer of the load and, by deformation, allows relative micro-displacements of the device-tissue. These micro displacements promote the continuous reconstruction of bone tissue and eliminate the risk of peri-implant bone loss.
- the method according to the invention further comprises the fixing of an implant in the fixing device, for example by screwing.
- the fixation device When placing the implant, the fixation device can also be deformed, so that the introduction of the implant increases the diameter of the fixation device, further adjusting the connection of the fixation device to the bone in which it is implanted.
- Fixing device for dental implant and kit including it
- the fixing device is intended for the placement of a dental implant.
- the housing of the hollow body is suitable for receiving a dental implant.
- the fixing device is intended to be housed in a cavity formed in an alveolar bone to receive a dental implant.
- the outside diameter of the hollow body may be between 2 and 6 millimeters, preferably between 2.5 and 5 millimeters, at the level of the most central part of the hollow body.
- the housing formed in the hollow body of such a device has a diameter of between 2 and 5.5 millimeters, preferably between 2 and 5 millimeters.
- the length of the hollow body of such a device is between 5 and 14 millimeters, preferably between 6 and 12 millimeters.
- the housing provided in the hollow body has a length of between 5 and 11 millimeters, preferably between 7 and 10 millimeters.
- the side wall of the hollow body providing the housing has a thickness of between 0.1 and 0.6 millimeter, and preferably close to 0.3 millimeter.
- the fixing device intended to receive a dental implant comprises a fixing head
- said head may, for example, have a diameter of between 3 and 8 millimeters and / or a length of 1 to 5 millimeters.
- the diameter of the fixing head is advantageously greater than the diameter of the hollow body.
- the implantation protocol is greatly reduced.
- the drilling-screwing operation of a fixing device for a dental implant required a great rigor of execution and a continuous control of tissue heating and of the tightening torque.
- the preparation of the bone site (drilling) remains similar to that of the prior art, but the adaptive geometry of the fixing device tolerates a defect in the geometry of the bore.
- the invention also aims to provide a new surgical kit having great ease of use and allowing rapid, simple and safe use of a fixing device according to the invention and of a dental implant.
- the kit includes:
- an instrument intended for bone preparation in particular an instrument for piercing the bone intended to receive the fixing device according to the invention
- an implant preferably a dental implant.
- the fixation device When the fixation device is intended to be implanted in a jawbone, the device is fully introduced and covered by the bone, with the exception of the proximal part of the device which is flush with the gum.
- FIGS. IA, IB and IC show a fixing device for an implant (10), in particular for a dental implant, according to a first embodiment of the invention.
- This device (10) has a generally tubular shape and comprises an open proximal part (1), a closed distal part (2) and a central hollow body (3) extending between the proximal part (1) and the distal part ( 2), said hollow body (3) forming a housing (4) and extending along a longitudinal axis X.
- the proximal part (1) is open so that the opening (12) of said proximal part opens into the housing (4) of the hollow body (3).
- the opening extends in the axial extension of the housing.
- the distal part (2) forms a closed base.
- the proximal part (1) of the fixing device is formed by a flared head (11).
- the wall (5) of the hollow body (3) is perforated by means of a plurality of longitudinal slots (6).
- the opening (12) of the proximal part is connected to the housing (4) of the hollow body (3) by means of a neck comprising a thread (14) extending from said proximal part towards the proximal part of the hollow body (3).
- the internal surface of the hollow body (3) is substantially smooth, in the sense that it may include micro-roughness, but that it is devoid of any fixing means, in particular of any means. fixation of an implant.
- the implant is held in position in the fixing device (10) by the neck (14).
- FIG. 2 shows the steps allowing the establishment of a fixing device according to the invention in a cavity, such as a bone cavity.
- the fixing device is elastically deformed by traction in order to reduce its diameter.
- the device is then introduced into the preformed cavity. Once inserted, the device relaxes and resumes a conformation tending to be identical to its initial conformation (length and diameter).
- the relaxation of the device generates radial compression of the surrounding tissue, which provides stabilization and adhesion at the bone tissue-fixation device interface.
- FIGS. 3A, 3B and 3C represent another embodiment of the fixing device according to the invention (30), in particular for a dental implant, according to a second embodiment of the invention.
- This device (30) has a generally frustoconical shape. More precisely, in this embodiment, the hollow body (3) has a generally frustoconical shape with a decrease in diameter from the proximal part to the distal part.
- the hollow body (3) also has a bulge, characterized by a local increase in diameter, at a central part of the hollow body. Thus, the diameter of the central part of the hollow body is greater than that of the rest of the hollow body on either side of this bulge.
- the wall (5) of the hollow body (3) is perforated by means of a plurality of helical slots (7) of the same pitch.
- This type of helical slots is particularly suited to tensile-torsional deformations.
- Helical slots of opposite or different pitches can also be envisaged in order to adapt the device to the desired deformations.
- the opening (12) of the proximal part is connected to the housing (4) of the hollow body (3) via a neck comprising a thread (14) extending from said proximal part towards the proximal part of the hollow body (3).
- the internal surface of the hollow body (3) is substantially smooth, in the sense that it may include micro-roughness, but that it is devoid of any fixing means, in particular any means of fixing an implant.
- FIG. 4 represents a side view of the fixing device for an implant (40), in particular a dental implant, according to another embodiment of the invention, in which the wall (5) of the hollow body (3) has a trellis (8 ).
- FIGS. 5A-5B show partial side sectional views of devices according to the invention, at the level of the hollow body (3) and of the distal part (2). As shown, the distal end (13) of the distal portion (2) can be closed (Fig. 5A) or pierced (Fig. 5B).
- FIGS. 6, 7 and 8 represent particular modes of use of the fixing device according to the invention, and particularly its implantation at the level of the jawbone, of the knee joint or of the joint of a finger .
- FIG. 6 particularly represents a device according to the invention inserted into the alveolar bone of a jaw, and in which a dental implant is fixed, to form a dental prosthesis.
- FIG. 7 represents a particular embodiment in which the fixing device (80) is inserted at the level of a bone supporting the knee joint.
- the fixing device according to the invention is particularly suitable for receiving an implant intended to replace the knee joint.
- the articular prosthesis (84) is composed of two fixing devices according to the invention and two complementary implants, one taking the form of the distal part of the femur (81) and the other of the proximal part of the tibia. (82).
- the prosthesis may further include an artificial patella (83).
- the implant intended to be inserted into the fixation devices is in one piece and comprises an artificial knee joint made up of elements (81), (82) and optionally (83).
- FIG. 8 represents a particular embodiment in which the fixation device is inserted at the level of a bone of a phalanx.
- the fixation device according to the invention is particularly suitable for receiving an implant intended to replace the metacarpophalangeal joint.
- the articular prosthesis (93) is composed of two fixing devices according to the invention and two complementary implants, one taking the form of the distal part of a metacarpus (91) and the other taking the form of the proximal part of the first phalanx (92).
- the implant intended to be inserted into the fixing devices is in one piece and comprises an artificial metacarpophalangeal joint made up of elements (91) and (92).
- the present fixing device can be used for all joints other than the knee and the finger in order to restore a compromised function of the organism.
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Vascular Medicine (AREA)
- Cardiology (AREA)
- Transplantation (AREA)
- Neurology (AREA)
- Epidemiology (AREA)
- Dentistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Physical Education & Sports Medicine (AREA)
- Ceramic Engineering (AREA)
- Prostheses (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2006780A FR3111790B1 (fr) | 2020-06-29 | 2020-06-29 | Dispositif de fixation deformable elastiquement |
| PCT/EP2021/067742 WO2022002876A2 (fr) | 2020-06-29 | 2021-06-28 | Dispositif de fixation deformable elastiquement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4171408A2 true EP4171408A2 (fr) | 2023-05-03 |
Family
ID=73013556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21734364.9A Pending EP4171408A2 (fr) | 2020-06-29 | 2021-06-28 | Dispositif de fixation deformable elastiquement |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20230218327A1 (fr) |
| EP (1) | EP4171408A2 (fr) |
| FR (1) | FR3111790B1 (fr) |
| WO (1) | WO2022002876A2 (fr) |
Family Cites Families (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3435526A (en) * | 1967-02-13 | 1969-04-01 | Heli Coil Corp | Device for securing an artificial tooth to the bone structure of a human jaw |
| US5453007A (en) * | 1993-04-08 | 1995-09-26 | Wagher; Felix | Elastic dental implant |
| US5766009A (en) * | 1995-01-20 | 1998-06-16 | Jeffcoat; Robert L. | Elastically stabilized endosseous dental implant |
| AU5478098A (en) * | 1997-01-07 | 1998-08-03 | John Reipur | A method of fastening an implant to a bone and an implant therefor |
| IL121316A (en) * | 1997-07-15 | 2001-07-24 | Litana Ltd | A medical device for planting in an alloy body with memory properties |
| US5954505A (en) * | 1998-03-05 | 1999-09-21 | Ford; Christopher W. | Force distributing dental implant |
| US6152738A (en) * | 1999-09-22 | 2000-11-28 | Aker; Frank | Method and apparatus for a prosthetic ligament |
| US20050260541A1 (en) * | 2001-12-28 | 2005-11-24 | Incumed, Inc. | Expandable polymer dental implant and method of use |
| US6991461B2 (en) * | 2001-12-28 | 2006-01-31 | Gittleman Neal B | Expandable dental implant apparatus |
| US6863530B2 (en) * | 2001-12-28 | 2005-03-08 | Incumed, Inc. | Expandable polymer dental implant and method of use |
| US6840770B2 (en) * | 2001-12-28 | 2005-01-11 | Mcdevitt Dennis | Expandable polymer dental implant and method of use |
| SE522803C2 (sv) * | 2002-12-19 | 2004-03-09 | Exopro L A | Fixtur för förankring i benvävnad |
| US8998923B2 (en) * | 2005-08-31 | 2015-04-07 | Spinealign Medical, Inc. | Threaded bone filling material plunger |
| AT504473B1 (de) * | 2006-10-05 | 2008-06-15 | Blaim Walter Dr | Zahnimplantatträger |
| US20080090209A1 (en) * | 2006-10-12 | 2008-04-17 | Snaper Alvin A | Dental implants using shape memory alloys |
| GB0707418D0 (en) * | 2007-04-17 | 2007-05-23 | Smith & Nephew | Dental implants |
| US20100228301A1 (en) * | 2009-03-09 | 2010-09-09 | Greenhalgh E Skott | Attachment device and methods of use |
| AU2010313866A1 (en) * | 2009-11-02 | 2012-05-31 | Puku Limited | Flexible spring fastener |
| US8486120B2 (en) * | 2010-05-11 | 2013-07-16 | Warsaw Orthopedic, Inc. | Implant with deployable stabilizers |
| FR2965473B1 (fr) * | 2010-10-05 | 2013-08-09 | Altade | Implant endo-osseux a ancrage ameliore |
| EP2522299B1 (fr) * | 2011-05-10 | 2020-07-22 | Nordin, Harald E. | Implant dentaire |
| US9155578B2 (en) * | 2012-02-28 | 2015-10-13 | DePuy Synthes Products, Inc. | Expandable fastener |
| JP6382237B2 (ja) * | 2013-03-06 | 2018-08-29 | スミス アンド ネフュー インコーポレーテッドSmith & Nephew,Inc. | マイクロアンカー |
| CN109069191B (zh) * | 2016-02-26 | 2022-07-12 | 艾缇沃托公司 | 主动压缩装置、组装方法和使用方法 |
| US12310815B2 (en) * | 2016-11-30 | 2025-05-27 | Abdelmadjid Djemai | Dental implant and self-locking fastening element with heterogeneousporous structures, and method for its production |
-
2020
- 2020-06-29 FR FR2006780A patent/FR3111790B1/fr not_active Expired - Fee Related
-
2021
- 2021-06-28 US US18/003,508 patent/US20230218327A1/en not_active Abandoned
- 2021-06-28 WO PCT/EP2021/067742 patent/WO2022002876A2/fr not_active Ceased
- 2021-06-28 EP EP21734364.9A patent/EP4171408A2/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR3111790B1 (fr) | 2022-11-04 |
| WO2022002876A3 (fr) | 2022-02-24 |
| WO2022002876A2 (fr) | 2022-01-06 |
| US20230218327A1 (en) | 2023-07-13 |
| FR3111790A1 (fr) | 2021-12-31 |
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