EP4178498A1 - Kit or assembly for carrying out guided bone regeneration - Google Patents

Kit or assembly for carrying out guided bone regeneration

Info

Publication number
EP4178498A1
EP4178498A1 EP21740489.6A EP21740489A EP4178498A1 EP 4178498 A1 EP4178498 A1 EP 4178498A1 EP 21740489 A EP21740489 A EP 21740489A EP 4178498 A1 EP4178498 A1 EP 4178498A1
Authority
EP
European Patent Office
Prior art keywords
membrane
kit according
bone
kit
stent
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
Application number
EP21740489.6A
Other languages
German (de)
French (fr)
Inventor
Jacques ATTIAS
Georges Khoury
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP4178498A1 publication Critical patent/EP4178498A1/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/28Bones
    • A61F2/2846Support means for bone substitute or for bone graft implants, e.g. membranes or plates for covering bone defects
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0003Not used, see subgroups
    • A61C8/0004Consolidating natural teeth
    • A61C8/0006Periodontal tissue or bone regeneration
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/02Inorganic materials
    • A61L27/04Metals or alloys
    • A61L27/06Titanium or titanium alloys
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/14Macromolecular materials
    • A61L27/18Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/14Macromolecular materials
    • A61L27/22Polypeptides or derivatives thereof, e.g. degradation products
    • A61L27/24Collagen
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/50Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A61L27/56Porous materials, e.g. foams or sponges
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/28Bones
    • A61F2002/2835Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/28Bones
    • A61F2/2875Skull or cranium
    • A61F2002/2889Maxillary, premaxillary or molar implants
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2430/00Materials or treatment for tissue regeneration
    • A61L2430/02Materials or treatment for tissue regeneration for reconstruction of bones; weight-bearing implants

Definitions

  • the present invention relates to a kit or assembly for the implementation of guided bone regeneration (ROG), in particular for dental and maxillofacial surgery operations with a view to promoting bone formation, in particular in the field of odontology or dental implantology.
  • ROG guided bone regeneration
  • a membrane is provided to cover the hollow region(s) lacking bone so as to prevent the invasion of tissues and cells, which contribute to the non-formation of bone in the region. lacking bone, thus allowing the bone to rebuild itself using its self-regenerative capacity to the maximum.
  • membranes made of bioresorbable material in addition to the fact that they do not require a second operation to remove them, are better suited to the treatment of large hollow regions, in particular thanks to the fact that they are not not bio-inert, and thus present a lower risk of exposure and secondary infection.
  • Document W02010/006270A1 discloses an implant for the bone of the wrist in the form of a laminate comprising a first layer with domed projections and a second layer of lesser density, the materials provided for the first layer being bioabsorbable.
  • This document does not relate to a method of regeneration and increase in volume at the bone surface by maintaining a space intended to ossify below the membrane by modifying the initial bone volume. It is a complex of biomaterials and membrane which ossifies like a single biomaterial.
  • the present invention aims to solve the drawbacks of the prior art by providing a kit or assembly for the so-called guided bone regeneration technique (ROG or also GBR for Guided Bone Regeneration) using a bioresorbable membrane which also gives good results. for large bone defects or complex shapes, while maintaining the lowest risk of exposure and infection.
  • ROG guided bone regeneration technique
  • GBR Guided Bone Regeneration
  • a kit or assembly for the guided bone regeneration technique in which a defective region of bone is protected by a membrane against cells and tissues likely to oppose the regeneration of the bone in said defective region, the kit comprising at least one membrane made of a bioresorbable material, is characterized in that there are provided means forming stents intended to prevent the membrane from collapsing in said defective bone region when it is positioned around or above it.
  • the means forming stents are made of non-resorbable material, in particular titanium.
  • the means forming stents, in particular made of non-resorbable material are incorporated into the thickness of the membrane made of bioresorbable material.
  • the means forming a guardian have sufficient rigidity to hold on their own without collapsing.
  • the means forming tutors hold on their own without collapsing, while the membrane alone does not hold on its own without collapsing, and the kit holds on its own without collapsing. sag.
  • the membrane is a matrix of resorbable material containing the stent(s) in its mass.
  • the surface occupied by the stent(s) preferably represent between 5 and 50% of the surface of said zone, preferably between 10 and 40%.
  • the membrane is flexible and the means forming a stent are more rigid than the membrane.
  • the membrane is made from a bioresorbable material, for example a resorbable polymer, such as polylactic acid (PLA) and polyglycolic acid (PGA) or their mixture (PLGA), or a material based of one extracellular matrix in collagen or in collagen of animal origin, such as porcine or bovine collagen.
  • a resorbable polymer such as polylactic acid (PLA) and polyglycolic acid (PGA) or their mixture (PLGA)
  • PLA polylactic acid
  • PGA polyglycolic acid
  • PLGA polyglycolic acid
  • a material based of one extracellular matrix in collagen or in collagen of animal origin such as porcine or bovine collagen.
  • the Kit is in the form of a laminate, the membrane and the tutor each being constituted by one or more respective layer(s) of the laminate.
  • the layer or layers of the laminate forming the tutor is in the internal part of the laminate, in particular is/are embedded in the laminate.
  • the tutor element is formed of tongues at a distance from each other, in particular of rectangular shape, the tongues being in particular made of a thickness and/or of a material such as they can be deformed, in particular curved, in particular with their concavity facing the defect, then retaining this shape to adapt perfectly to the shape of the bone defect.
  • the present invention also relates to a method for regenerating bone material according to the technique known as guided bone regeneration (ROG), which comprises the steps in which:
  • a hollow or boneless region is formed in which it is desired that bone regenerates autonomously;
  • a membrane is placed, incorporating in its structure means forming guardians, on or around said hollow region or without bone to protect it from the entry of cells and/or tissues opposing bone regeneration;
  • FIGS 1 to 3 schematically represent the main steps of the ROG or GBR technique
  • Figure 4 is a front view of a kit or assembly according to the invention.
  • Figure 5 is a schematic perspective view of the use of a kit or assembly according to the invention.
  • Figure 6 is a sectional view of a laminate forming a kit according to the invention.
  • Figures 7A, 7B, 7C, 7D, 7E and 7F are top views of an example of a kit formed by a membrane and tutor elements in the form of oblong tabs incorporated into the membrane.
  • FIGS 1 to 3 schematically show the main steps of the GBR technique according to the invention in the field of dental implantology.
  • kit or assembly according to the invention. It consists of the membrane 1 in the form of a film or sheet, in which means have been incorporated forming tutors in the form of an element 2 in the shape of a cross or lattice having transverse tongues 4, in particular rectangular, from a 3 main stem or column.
  • element 2 is laminated to the membrane so as to form a two-layer laminate, the layer formed from element 2 being preferably placed on the face of membrane 1 intended to be on the side opposite to the hollow region.
  • the flexible membrane and rigid support assembly is maintained thanks to the rigidity conferred on it by the supports above the hollow region, while retaining its volume without collapsing inside, thus remaining at a distance from the defect.
  • bone in order to maintain a colonizable space by a bone tissue in formation, making it possible to conform a volume which will determine an ossification space adapted to the desired bone surface.
  • the membrane is fixed using titanium tacks impacted into the bone, the head of the tack retaining the membrane, the tacks preferably (but not necessarily) being independent of the stent(s).
  • the fixing of the membrane, in particular using tacks is peripheral in an area that does not require correction.
  • the stents are found free and affixed to the newly formed bone. They can therefore be easily removed at the end of treatment or during treatment in the event of complications.
  • the tutor element 2 could be made only with the tabs 4, at a distance from each other, without providing the column 3.
  • the tabs can be made to a thickness and / or in a material such that they can be deformed, in particular curved, in particular with their concavity facing the defect, then retaining this shape to adapt perfectly to the shape of the bone defect.
  • the tutor element 2 is more rigid than the membrane 1.
  • the tutor 2 can certainly be deformed along certain lines of lesser rigidity to allow the membrane to take on a shape that matches a volume, but the tutor retains its shape, however. especially along the tabs so that it prevents the membrane from sagging into the hole above it is arranged to plug it.
  • the membrane made of bioresorbable material can in particular be made of a material based on a collagen extracellular matrix or it can also be made of collagen of animal origin, such as porcine or bovine collagen.
  • the membrane can also be made from resorbable polymer, such as polylactic acid (PLA) and polyglycolic acid (PGA) or their mixture (PLGA).
  • the stent is made of a non-bioresorbable material, to give it sufficient rigidity, for example titanium, and is preferably located on the outside of the region to be treated.
  • kits according to the invention in the form of a laminate consisting of three layers, the intermediate layer forming the guardian, and may in particular consist of the element 2, or formed of the column 3 and tabs 4, either tabs 4 alone, or a mesh in another form, for example in the form of a grid, or any other similar form, while the other two layers form the bioresorbable membrane(s) (s).
  • the stakes can have different positions, in particular in the membrane, depending on the extent of the latter, in particular circumferentially at the periphery of the membrane with one or two optional tabs (depending on the diameter of the membrane) transverse, in particular perpendicular, in order to increase the rigidity of the assembly, or in the form of assembled flexible tongues which can describe different geometric shapes adapted to the volume to be increased at the level of the surface of the bone or a combination of these different shapes.
  • an element stands on its own without collapsing, the fact that when a rectangular sample is taken, in particular 40mm long by 10mm wide of this element and that it is tightened by a side edge, at the level of the width, over a length of 10mm, to hold it horizontally, for example between the thumb and the index finger or even more preferably by tightening it between two jaws, it stands by itself, in particular the line which extends between the free end of the sample and the beginning of the loose part of the sample makes an angle with the horizontal which is less than 45°, in particular less than 30°, even more notably less than 15°, in particular being between 1° and 30°, and in particular is between 1° and 5°.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Medicinal Chemistry (AREA)
  • Dermatology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Developmental Biology & Embryology (AREA)
  • Biophysics (AREA)
  • Dentistry (AREA)
  • Cardiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Materials For Medical Uses (AREA)
  • Prostheses (AREA)

Abstract

A kit or assembly for the technique of guided bone regeneration, in which a region lacking in bone is protected by a membrane against cells and tissue likely to resist the regeneration of bone in said defective region, the kit comprising at least one membrane (1) made of a bioresorbable material, is characterised in that it is provided with means (2) forming props intended to prevent the membrane from collapsing into the region lacking in bone when it is placed around or above said region.

Description

Kit ou ensemble pour la mise en œuvre d'une régénération osseuse guidée Kit or set for the implementation of guided bone regeneration
[0001] La présente invention se rapporte à un kit ou ensemble pour la mise en oeuvre d'une régénération osseuse guidée (ROG), en particulier pour des opérations de chirurgie dentaire et maxillo-faciale en vue de promouvoir la formation osseuse, notamment dans le domaine de l'odontologie ou de l'implantologie dentaire. The present invention relates to a kit or assembly for the implementation of guided bone regeneration (ROG), in particular for dental and maxillofacial surgery operations with a view to promoting bone formation, in particular in the field of odontology or dental implantology.
[0002] Le manque de volume osseux limite dans une grande mesure l'utilisation d'implant dentaire. Un volume osseux insuffisant, que ce soit en hauteur ou en épaisseur, peut nécessiter la mise en oeuvre de procédures chirurgicales d’augmentation osseuse lourdes. La Régénération Osseuse Guidée est une des thérapeutiques possibles. [0002] The lack of bone volume greatly limits the use of dental implants. Insufficient bone volume, whether in height or thickness, may require the implementation of heavy bone augmentation surgery procedures. Guided Bone Regeneration is one of the possible therapies.
[0003] Une membrane est prévue pour recouvrir la ou les région(s) creuse(s) manquant d'os de manière à empêcher l'invasion de tissus et cellules, qui contribuent à la non-formation de l'os dans la région manquant d'os, pour ainsi permettre à l'os de se reconstruire en utilisant au maximum sa capacité auto régénératrice. [0003] A membrane is provided to cover the hollow region(s) lacking bone so as to prevent the invasion of tissues and cells, which contribute to the non-formation of bone in the region. lacking bone, thus allowing the bone to rebuild itself using its self-regenerative capacity to the maximum.
[0004] Il est déjà connu d'utiliser aussi bien des membranes résorbables ou biorésorbables que des membranes qui ne sont pas résorbables ou dites non- biorésorbables. [0004] It is already known to use both resorbable or bioresorbable membranes and membranes which are not resorbable or said to be non-bioresorbable.
[0005] L'utilisation de membranes non-biorésorbables présente cependant comme inconvénient qu'il est difficile d'adopter ce genre de matériau, bio-inerte, à des régions creuses étendues. En outre, elles présentent un risque d’exposition et de surinfection élevé. [0005] The use of non-bioresorbable membranes, however, has the disadvantage that it is difficult to adopt this type of material, bio-inert, to extended hollow regions. In addition, they present a high risk of exposure and superinfection.
[0006] A l'inverse, les membranes en matériau biorésorbable, outre le fait qu'elles ne nécessitent pas une deuxième opération pour les retirer, sont mieux adaptées au traitement de régions creuses étendues, en particulier grâce au fait qu'elles ne sont pas bio-inertes, et présentent ainsi un risque d’exposition et de surinfection moindre. [0006] Conversely, membranes made of bioresorbable material, in addition to the fact that they do not require a second operation to remove them, are better suited to the treatment of large hollow regions, in particular thanks to the fact that they are not not bio-inert, and thus present a lower risk of exposure and secondary infection.
[0007] Cependant, à l'usage, il est apparu que l'utilisation de membranes biorésorbables, notamment pour des régions creuses étendues ou de forme complexe, bien que ne coupant pas la vascularisation, présente des résultats inconstants en volume et en forme de l’os régénéré, pourtant nécessaire à la pose d’implants, de sorte que cette utilisation est aujourd’hui cantonnée à des défauts de faible étendue. [0007] However, in use, it has appeared that the use of bioresorbable membranes, in particular for large hollow regions or regions of complex shape, although not cutting off the vascularization, presents results variable in volume and shape of the regenerated bone, yet necessary for the placement of implants, so that this use is today confined to defects of small extent.
[0008] Par exemple, il est connu de US5919234A1 , une membrane est disposée au- dessus d’une zone de régénération en étant fixée le long du bord de celle-ci par des moyens de fixation constitués d’une barrette et de vis en matériau résorbable. Cependant, ces moyens de fixation n’empêchent pas la membrane de s’affaisser dans la zone de régénération, leur action étant limitée au niveau du bord. [0008] For example, it is known from US5919234A1, a membrane is arranged above a regeneration zone while being fixed along the edge of the latter by fixing means consisting of a strip and screws in resorbable material. However, these fastening means do not prevent the membrane from collapsing in the regeneration zone, their action being limited to the edge.
[0009] Du document W02010/006270A1 , il est connu un implant pour l’os du poignet sous la forme d’un stratifié comportant une première couche avec des saillies en dôme et une deuxième couche de moindre densité, les matériaux prévus pour la première couche étant bio résorbables. Ce document ne se rapporte pas à un procédé de régénération et d’augmentation de volume à la surface osseuse par maintien d’un espace destiné à s’ossifier en dessous de la membrane en modifiant le volume osseux initial. Il s’agit d’un complexe de bio matériaux et membrane qui s’ossifie à la manière d’un biomatériau seul. [0009] Document W02010/006270A1 discloses an implant for the bone of the wrist in the form of a laminate comprising a first layer with domed projections and a second layer of lesser density, the materials provided for the first layer being bioabsorbable. This document does not relate to a method of regeneration and increase in volume at the bone surface by maintaining a space intended to ossify below the membrane by modifying the initial bone volume. It is a complex of biomaterials and membrane which ossifies like a single biomaterial.
[0010] La présente invention vise à résoudre les inconvénients de l'art antérieur en proposant un kit ou ensemble pour la technique dite de régénération osseuse guidée (ROG ou également GBR pour Guided Bone Régénération) utilisant une membrane biorésorbable qui donne de bon résultat aussi pour des défauts osseux de grande étendue ou de forme complexe, et ce en conservant le risque moindre d’exposition et d’infection. The present invention aims to solve the drawbacks of the prior art by providing a kit or assembly for the so-called guided bone regeneration technique (ROG or also GBR for Guided Bone Regeneration) using a bioresorbable membrane which also gives good results. for large bone defects or complex shapes, while maintaining the lowest risk of exposure and infection.
[0011] Suivant l'invention, un kit ou ensemble pour la technique de régénération osseuse guidée, dans laquelle une région défectueuse en os est protégée par une membrane vis-à-vis des cellules et tissus susceptibles de s'opposer à la régénération de l'os dans ladite région défectueuse, le kit comportant au moins une membrane en un matériau biorésorbable, est caractérisé en ce qu'il est prévu des moyens formant tuteurs destinés à empêcher la membrane de s'affaisser dans ladite région défectueuse en os lorsqu’elle y est positionnée autour ou au-dessus. [0011] According to the invention, a kit or assembly for the guided bone regeneration technique, in which a defective region of bone is protected by a membrane against cells and tissues likely to oppose the regeneration of the bone in said defective region, the kit comprising at least one membrane made of a bioresorbable material, is characterized in that there are provided means forming stents intended to prevent the membrane from collapsing in said defective bone region when it is positioned around or above it.
[0012] Suivant un mode de réalisation particulièrement favorable, les moyens formant tuteurs sont réalisés en matériau non-résorbable, notamment en titane. [0013] De préférence, les moyens formant tuteurs, notamment en matériau non- résorbable, sont incorporés dans l’épaisseur de la membrane en matériau biorésorbable. [0012] According to a particularly favorable embodiment, the means forming stents are made of non-resorbable material, in particular titanium. [0013] Preferably, the means forming stents, in particular made of non-resorbable material, are incorporated into the thickness of the membrane made of bioresorbable material.
[0014] De préférence, les moyens formant tuteur ont une rigidité suffisante pour tenir d’eux même sans s’affaisser. [0014] Preferably, the means forming a guardian have sufficient rigidity to hold on their own without collapsing.
[0015] En particulier, les moyens formant tuteurs tiennent d’eux-mêmes sans s’affaisser, tandis que la membrane seule ne tient pas d’elle-même sans s’affaisser, et le kit tient de soi-même sans s’affaisser. [0015] In particular, the means forming tutors hold on their own without collapsing, while the membrane alone does not hold on its own without collapsing, and the kit holds on its own without collapsing. sag.
[0016] En particulier, la membrane est une matrice en matériau résorbable contenant dans sa masse le ou les tuteurs. [0016] In particular, the membrane is a matrix of resorbable material containing the stent(s) in its mass.
[0017] De préférence, dans la zone de la membrane dans laquelle sont incorporés le ou les tuteurs, notamment dans la zone destinée à se trouver à l’aplomb de la cavité osseuse que l’on souhaite régénérer, la surface occupée par le ou les tuteurs représente, de préférence, entre 5 et 50% de la surface de ladite zone, de préférence entre 10 et 40%. [0017] Preferably, in the zone of the membrane in which the stent(s) are incorporated, in particular in the zone intended to be located directly above the bone cavity that it is desired to regenerate, the surface occupied by the stent(s) the stakes preferably represent between 5 and 50% of the surface of said zone, preferably between 10 and 40%.
[0018] En prévoyant ainsi des moyens formant tuteurs destinés à supporter la membrane dans la position dans laquelle elle enferme la région dans laquelle on souhaite que de l'os repousse de manière naturelle, pour y empêcher l'entrée de tissus et cellules qui aurait des effets néfastes à l'encontre de cette repousse osseuse, on s'assure que la membrane, notamment dans le cas de régions creuses de grande dimension, ne s'affaisse pas sur elle-même, ce qui, ont compris les inventeurs, était une cause importante de la difficulté de l’os à se régénérer. En outre, il est apparu de manière surprenante que l’utilisation de matériau non résorbable pour le tuteur n’entraînait pas le risque de surinfection élevé lié à l’utilisation de tels matériaux. [0018] By thus providing means forming tutors intended to support the membrane in the position in which it encloses the region in which it is desired that the bone grow back in a natural way, to prevent the entry of tissues and cells which would have harmful effects against this bone regrowth, it is ensured that the membrane, in particular in the case of large hollow regions, does not collapse on itself, which, the inventors have understood, was an important cause of the difficulty of the bone to regenerate. In addition, it appeared surprisingly that the use of non-absorbable material for the stent did not lead to the high risk of superinfection associated with the use of such materials.
[0019] De préférence, la membrane est souple et les moyens formant tuteur sont plus rigides que la membrane. [0019] Preferably, the membrane is flexible and the means forming a stent are more rigid than the membrane.
[0020] En particulier, la membrane est réalisée à partir d’un matériau biorésorbable, par exemple un polymère résorbable, tel que d’acide polylactique (PLA) et polyglycolique (PGA) ou leur mélange (PLGA), ou un matériau à base d'une matrice extracellulaire en collagène ou en collagène d'origine animale, tel que du collagène porcin ou bovin. [0020] In particular, the membrane is made from a bioresorbable material, for example a resorbable polymer, such as polylactic acid (PLA) and polyglycolic acid (PGA) or their mixture (PLGA), or a material based of one extracellular matrix in collagen or in collagen of animal origin, such as porcine or bovine collagen.
[0021 ] Notamment, le Kit est sous la forme d’un stratifié, la membrane et le tuteur étant chacun constitué par une ou plusieurs couche(s) respective(s) du stratifié. [0021] In particular, the Kit is in the form of a laminate, the membrane and the tutor each being constituted by one or more respective layer(s) of the laminate.
[0022] En particulier la couche ou les couches du stratifié formant le tuteur est dans la partie interne du stratifié, notamment est/sont noyée(s) dans le stratifié. [0022] In particular, the layer or layers of the laminate forming the tutor is in the internal part of the laminate, in particular is/are embedded in the laminate.
[0023] Suivant un mode de réalisation avantageux, l’élément tuteur est formé de languettes à distance les unes des autres, notamment de forme rectangulaire, les languettes étant notamment réalisées à une épaisseur et/ou en un matériau tel(s), qu’elles peuvent être déformées, notamment courbées, notamment avec leur concavité tournée vers le défaut, en conservant ensuite cette forme pour s’adapter parfaitement à la forme du défaut osseux. [0023] According to an advantageous embodiment, the tutor element is formed of tongues at a distance from each other, in particular of rectangular shape, the tongues being in particular made of a thickness and/or of a material such as they can be deformed, in particular curved, in particular with their concavity facing the defect, then retaining this shape to adapt perfectly to the shape of the bone defect.
[0024] La présente invention se rapporte également à un procédé_pour régénérer de la matière osseuse suivant la technique dite de régénération osseuse guidée (ROG), qui comprend les étapes dans lesquelles : The present invention also relates to a method for regenerating bone material according to the technique known as guided bone regeneration (ROG), which comprises the steps in which:
- on forme une région creuse ou sans os dans laquelle on souhaite que de l'os se régénère de manière autonome ; - a hollow or boneless region is formed in which it is desired that bone regenerates autonomously;
- on dispose une membrane, incorporant dans sa structure des moyens formant tuteurs, sur ou autour de ladite région creuse ou sans os pour la protéger de l’entrée de cellules et/ou tissus s’opposant à la régénération osseuse ; et - a membrane is placed, incorporating in its structure means forming guardians, on or around said hollow region or without bone to protect it from the entry of cells and/or tissues opposing bone regeneration; and
- Les moyens formant tuteurs empêchant la membrane de s’affaisser dans ladite région creuse. - The means forming tutors preventing the membrane from collapsing in said hollow region.
[0025] A titre d’exemple, on décrit maintenant un mode de réalisation préféré de l’invention en se reportant aux dessins dans lesquels : By way of example, a preferred embodiment of the invention will now be described with reference to the drawings in which:
[0026] Les figures 1 à 3 représentent schématiquement les étapes principales de la technique ROG ou GBR ; Figures 1 to 3 schematically represent the main steps of the ROG or GBR technique;
[0027] La figure 4 est une vue de face d'un kit ou ensemble suivant l'invention ; Figure 4 is a front view of a kit or assembly according to the invention;
[0028] La figure 5 est une vue en perspective schématique de l'utilisation d'un kit ou ensemble suivant l'invention ; [0029] La figure 6 est une vue en coupe d’un stratifié formant un kit suivant l’invention ; et Figure 5 is a schematic perspective view of the use of a kit or assembly according to the invention; Figure 6 is a sectional view of a laminate forming a kit according to the invention; and
[0030] Les figures 7A, 7B, 7C, 7D, 7E et 7F sont des vues de dessus d’exemple de kit formé d’une membrane et d’éléments tuteurs en forme de languettes oblongues incorporées dans la membrane. [0030] Figures 7A, 7B, 7C, 7D, 7E and 7F are top views of an example of a kit formed by a membrane and tutor elements in the form of oblong tabs incorporated into the membrane.
[0031] Aux figures 1 à 3, il est représenté schématiquement les étapes principales de la technique GBR suivant l’invention dans le domaine de l’implantologie dentaire. Figures 1 to 3 schematically show the main steps of the GBR technique according to the invention in the field of dental implantology.
[0032] Lorsqu’une dent est extraite (figure 1 ), il reste une cavité, ou défaut osseux, dans l’os (figure 2), dans lequel il convient de laisser l’os se régénérer avant d’implanter un implant en remplacement de la dent extraite. [0032] When a tooth is extracted (Figure 1), there remains a cavity, or bone defect, in the bone (Figure 2), in which the bone should be allowed to regenerate before implanting an implant in replacement of the extracted tooth.
[0033] Or pour que l’os se régénère convenablement dans le défaut osseux, il est nécessaire de protéger ce dernier de l’envahissement de cellules gingivales néfaste à la repousse tout en assurant le maintien du volume modelé par une membrane résorbable combinée au tuteur associé. C’est pourquoi on bouche le défaut osseux à l’aide d’une membrane 1 d’un kit suivant l’invention. [0033] However, for the bone to regenerate properly in the bone defect, it is necessary to protect the latter from the invasion of gingival cells harmful to regrowth while ensuring the maintenance of the volume modeled by a resorbable membrane combined with the guardian associate. This is why the bone defect is plugged using a membrane 1 from a kit according to the invention.
[0034] A la figure 4, il est représenté un kit ou ensemble suivant l'invention. Il est constitué de la membrane 1 en forme de film ou nappe, dans laquelle on a incorporé des moyens formant tuteurs sous la forme d'un élément 2 en forme de croix ou treillis ayant des languettes 4 transversales, notamment rectangulaires, issues d’une tige ou colonne 3 principale. In Figure 4, there is shown a kit or assembly according to the invention. It consists of the membrane 1 in the form of a film or sheet, in which means have been incorporated forming tutors in the form of an element 2 in the shape of a cross or lattice having transverse tongues 4, in particular rectangular, from a 3 main stem or column.
[0035] En particulier l’élément 2 est laminé sur la membrane de manière à former un stratifié à deux couches, la couche formée de l’élément 2 étant disposée de préférence sur la face de la membrane 1 destinée à être du côté opposé à la région creuse. In particular, element 2 is laminated to the membrane so as to form a two-layer laminate, the layer formed from element 2 being preferably placed on the face of membrane 1 intended to be on the side opposite to the hollow region.
[0036] L’ensemble membrane souple et tuteur rigide est maintenu grâce à la rigidité que lui confère les tuteurs au-dessus de la région creuse en en conservant son volume sans s’affaisser à l’intérieur, en restant ainsi à distance du défaut osseux afin de maintenir un espace colonisable par un tissu osseux en formation, permettant de conformer un volume qui déterminera un espace d’ossification adapté à la surface osseuse souhaitée. [0037] La membrane est fixée à l’aide de punaises en titane impactées dans l’os, la tête de la punaise retenant la membrane, les punaises étant de préférence (mais pas nécessairement) indépendantes du ou des tuteurs. La fixation de la membrane, notamment à l’aide des punaises, est périphérique dans une zone ne nécessitant pas de correction. [0036] The flexible membrane and rigid support assembly is maintained thanks to the rigidity conferred on it by the supports above the hollow region, while retaining its volume without collapsing inside, thus remaining at a distance from the defect. bone in order to maintain a colonizable space by a bone tissue in formation, making it possible to conform a volume which will determine an ossification space adapted to the desired bone surface. The membrane is fixed using titanium tacks impacted into the bone, the head of the tack retaining the membrane, the tacks preferably (but not necessarily) being independent of the stent(s). The fixing of the membrane, in particular using tacks, is peripheral in an area that does not require correction.
[0038] Une fois la membrane résorbée et la régénération osseuse obtenue, les tuteurs se retrouvent libres et apposés sur l’os néoformé. Ils peuvent donc être déposés aisément en fin de traitement ou en cours de traitement en cas de complications. [0038] Once the membrane has been resorbed and bone regeneration has been obtained, the stents are found free and affixed to the newly formed bone. They can therefore be easily removed at the end of treatment or during treatment in the event of complications.
[0039] Suivant un autre mode de réalisation avantageux, on pourrait réaliser l’élément 2 tuteur uniquement avec les languettes 4, à distance les unes des autres, sans prévoir la colonne 3. En particulier, on peut réaliser les languettes à une épaisseur et/ou en un matériau tel, qu’elles peuvent être déformées, notamment courbées, notamment avec leur concavité tournée vers le défaut, en conservant ensuite cette forme pour s’adapter parfaitement à la forme du défaut osseux. According to another advantageous embodiment, the tutor element 2 could be made only with the tabs 4, at a distance from each other, without providing the column 3. In particular, the tabs can be made to a thickness and / or in a material such that they can be deformed, in particular curved, in particular with their concavity facing the defect, then retaining this shape to adapt perfectly to the shape of the bone defect.
[0040] L’élément 2 tuteur est plus rigide que la membrane 1. Le tuteur 2 peut certes être déformé suivant certaines lignes de moindre rigidité pour permettre à la membrane de prendre une forme épousant un volume, mais cependant le tuteur conserve sa forme, notamment le long des languettes de sorte qu’il empêche la membrane de s’affaisser dans le trou au-dessus elle est disposée pour le boucher. The tutor element 2 is more rigid than the membrane 1. The tutor 2 can certainly be deformed along certain lines of lesser rigidity to allow the membrane to take on a shape that matches a volume, but the tutor retains its shape, however. especially along the tabs so that it prevents the membrane from sagging into the hole above it is arranged to plug it.
[0041] La membrane en matériau biorésorbable peut notamment être en un matériau à base d'une matrice extracellulaire en collagène ou elle peut également être réalisée en collagène d'origine animale, tel que du collagène porcin ou bovin. On peut également réaliser la membrane à partir de polymère résorbable, tel que d’acide polylactique (PLA) et polyglycolique (PGA) ou leur mélange (PLGA). [0041] The membrane made of bioresorbable material can in particular be made of a material based on a collagen extracellular matrix or it can also be made of collagen of animal origin, such as porcine or bovine collagen. The membrane can also be made from resorbable polymer, such as polylactic acid (PLA) and polyglycolic acid (PGA) or their mixture (PLGA).
[0042] De préférence, le tuteur est en un matériau non-biorésorbable, pour lui donner une rigidité suffisante, par exemple en Titane, et de préférence se trouve du côté extérieur de la région à traiter. [0042] Preferably, the stent is made of a non-bioresorbable material, to give it sufficient rigidity, for example titanium, and is preferably located on the outside of the region to be treated.
[0043] D’autres matériaux pour le tuteur 2 peuvent être ceux utilisés pour la membrane. Ces matériaux pourraient être biorésorbables rigides réalisés à partir d’acide Polylactique et ou Polyglycolique. [0044] A la figure 6, il est représenté un kit suivant l’invention sous la forme d’un stratifié constitué de trois couches, la couche intermédiaire formant le tuteur, et pouvant notamment être constitué de l’élément 2, soit formé de la colonne 3 et des languettes 4, soit des languettes 4 seules, soit d’un treillis sous une autre forme, par exemple en forme de grille, ou toute autre forme analogue, tandis que les deux autres couches forment la ou les membranes bio résorbable(s). Other materials for the tutor 2 can be those used for the membrane. These materials could be rigid bioresorbable made from polylactic and or polyglycolic acid. In Figure 6, there is shown a kit according to the invention in the form of a laminate consisting of three layers, the intermediate layer forming the guardian, and may in particular consist of the element 2, or formed of the column 3 and tabs 4, either tabs 4 alone, or a mesh in another form, for example in the form of a grid, or any other similar form, while the other two layers form the bioresorbable membrane(s) (s).
[0045] Ainsi, les tuteurs peuvent avoir différents positionnements, notamment dans la membrane, en fonction de l’étendue de celle-ci, notamment de manière circonférentielle en périphérie de la membrane avec une ou deux languettes facultatives (en fonction du diamètre de la membrane) transversales, notamment perpendiculaires, afin d’accroître la rigidité de l’ensemble, ou en forme de languettes souples assemblées pouvant décrire différentes formes géométriques adaptées au volume à augmenter au niveau de la surface de l’os ou une combinaison de ces différentes formes. [0046] Suivant l’invention, on entend qu’un élément tient de soi-même sans s’affaisser, le fait que lorsqu’on en prend un échantillon rectangulaire, notamment de 40mm de long sur 10mm de large de cet élément et qu’on le serre par un bord latéral, au niveau de la largeur, sur une longueur de 10mm, pour le faire tenir à l’horizontal, par exemple entre le pouce et l’index ou encore plus préférablement en le serrant entre deux mâchoires, il tient de lui-même, notamment la ligne qui s’étend entre l’extrémité libre de l’échantillon et le début de la partie non serrée de l’échantillon fait un angle avec l’horizontale qui est inférieur à 45°, notamment inférieur à 30°, encore plus notablement inférieur à 15°, notamment en étant compris entre 1° et 30°, et notamment est compris entre 1° et 5°. Thus, the stakes can have different positions, in particular in the membrane, depending on the extent of the latter, in particular circumferentially at the periphery of the membrane with one or two optional tabs (depending on the diameter of the membrane) transverse, in particular perpendicular, in order to increase the rigidity of the assembly, or in the form of assembled flexible tongues which can describe different geometric shapes adapted to the volume to be increased at the level of the surface of the bone or a combination of these different shapes. [0046] According to the invention, it is meant that an element stands on its own without collapsing, the fact that when a rectangular sample is taken, in particular 40mm long by 10mm wide of this element and that it is tightened by a side edge, at the level of the width, over a length of 10mm, to hold it horizontally, for example between the thumb and the index finger or even more preferably by tightening it between two jaws, it stands by itself, in particular the line which extends between the free end of the sample and the beginning of the loose part of the sample makes an angle with the horizontal which is less than 45°, in particular less than 30°, even more notably less than 15°, in particular being between 1° and 30°, and in particular is between 1° and 5°.

Claims

Revendications Claims
[Revendication 1] Kit ou ensemble pour la technique de régénération osseuse guidée, dans laquelle une région défectueuse en os est protégée par une membrane vis-à-vis des cellules et tissus susceptibles de s'opposer à la régénération de l'os dans ladite région défectueuse, le kit comportant au moins une membrane (1) en un matériau biorésorbable, est caractérisé en ce qu'il est prévu des moyens (2) formant tuteurs destinés à empêcher la membrane de s'affaisser dans ladite région défectueuse en os lorsqu’elle y est positionnée autour ou au-dessus. [Revendication 2] Kit suivant la revendication 1 , caractérisé en ce que les moyens [Claim 1] Kit or assembly for the technique of guided bone regeneration, in which a defective region of bone is protected by a membrane against cells and tissues likely to oppose the regeneration of bone in said defective region, the kit comprising at least one membrane (1) made of a bioresorbable material, is characterized in that there are provided means (2) forming stakes intended to prevent the membrane from collapsing in the said defective bone region when it is positioned around or above it. [Claim 2] Kit according to claim 1, characterized in that the means
(2) formant tuteur sont en un matériau non biorésorbable. (2) forming a stent are made of a non-bioabsorbable material.
[Revendication 3] Kit suivant la revendication 1 ou 2, caractérisé en ce que la membrane est souple et les moyens formant tuteur sont plus rigides que la membrane [Claim 3] Kit according to Claim 1 or 2, characterized in that the membrane is flexible and the means forming a stent are more rigid than the membrane
[Revendication 4] Kit suivant l’une des revendications précédentes, caractérisé en ce que les moyens formant tuteurs, notamment en matériau non- résorbable, sont incorporés dans l’épaisseur de la membrane en matériau biorésorbable. [Claim 4] Kit according to one of the preceding claims, characterized in that the means forming tutors, in particular of non-resorbable material, are incorporated into the thickness of the membrane of bioresorbable material.
[Revendication 5] Kit suivant l’une des revendications précédentes, caractérisé en ce que les moyens formant tuteur ont une rigidité suffisante pour tenir d’eux même sans s’affaisser. [Claim 5] Kit according to one of the preceding claims, characterized in that the means forming a stake have sufficient rigidity to hold on their own without collapsing.
[Revendication 6] Kit suivant l’une des revendications précédentes, caractérisé en ce que les moyens formant tuteurs tiennent d’eux-mêmes sans s’affaisser, tandis que la membrane seule ne tient pas d’elle-même sans s’affaisser, et le kit tient de soi-même sans s’affaisser. [Claim 6] Kit according to one of the preceding claims, characterized in that the means forming tutors hold on their own without collapsing, while the membrane alone does not hold on its own without collapsing, and the kit stands on its own without sagging.
[Revendication 7] Kit suivant la revendication 4, 5 ou 6, caractérisé en ce que la membrane est une matrice en matériau résorbable contenant dans sa masse les moyens formant tuteur. [Claim 7] Kit according to Claim 4, 5 or 6, characterized in that the membrane is a matrix of resorbable material containing in its mass the means forming a stent.
[Revendication 8] Kit suivant l’une des revendications précédentes, caractérisé en ce que dans la zone de la membrane dans laquelle sont incorporés le ou les tuteurs, notamment dans la zone destinée à se trouver à l’aplomb de la cavité osseuse que l’on souhaite régénérer, la surface occupée par le ou les tuteurs représente, de préférence, entre 5 et 50% de la surface de ladite zone, de préférence entre 10 et 40%. [Claim 8] Kit according to one of the preceding claims, characterized in that in the zone of the membrane in which the stent(s) are incorporated, in particular in the zone intended to be located directly above the bone cavity that the 'we want to regenerate, the surface occupied by the tutor(s) preferably represents between 5 and 50% of the surface of said zone, preferably between 10 and 40%.
[Revendication 9] Kit suivant l’une des revendications précédentes, caractérisé en ce que l’élément tuteur est formé de languettes à distance les unes des autres, notamment de forme rectangulaire. [Claim 9] Kit according to one of the preceding claims, characterized in that the tutor element is formed of tongues at a distance from each other, in particular of rectangular shape.
[Revendication 10] Kit suivant la revendication 4, caractérisé en ce que les languettes sont réalisées à une épaisseur et/ou en un matériau tel(s), qu’elles peuvent être déformées, notamment courbées, notamment avec leur concavité tournée vers le défaut, en conservant ensuite cette forme pour s’adapter parfaitement à la forme du défaut osseux. [Claim 10] Kit according to Claim 4, characterized in that the tabs are made of a thickness and/or of a material such that they can be deformed, in particular bent, in particular with their concavity facing the defect , then maintaining this shape to adapt perfectly to the shape of the bony defect.
[Revendication 11] Kit suivant l’une des revendications 1 à 10, caractérisé en ce que la membrane est réalisée à partir de polymère résorbable, tel que d’acide polylactique (PLA) et polyglycolique (PGA) ou leur mélange (PLGA). [Claim 11] Kit according to one of Claims 1 to 10, characterized in that the membrane is made from a resorbable polymer, such as polylactic acid (PLA) and polyglycolic acid (PGA) or their mixture (PLGA).
[Revendication 12] Kit suivant l’une des revendications 1 à 10, caractérisé en ce que la membrane est en un matériau à base d'une matrice extracellulaire en collagène ou en collagène d'origine animale, tel que du collagène porcin ou bovin. [Claim 12] Kit according to one of Claims 1 to 10, characterized in that the membrane is made of a material based on an extracellular matrix of collagen or collagen of animal origin, such as porcine or bovine collagen.
[Revendication 13] Kit suivant l’une des revendications 1 à 12, caractérisé en ce que les moyens formant tuteur sont en Titane. [Claim 13] Kit according to one of Claims 1 to 12, characterized in that the means forming a guardian are made of titanium.
[Revendication 14] Kit suivant l’une des revendications précédentes, caractérisé en ce qu’il est sous la forme d’un stratifié. [Claim 14] Kit according to one of the preceding claims, characterized in that it is in the form of a laminate.
[Revendication 15] Kit suivant la revendication 14, caractérisé en ce que la couche du stratifié formant le tuteur est noyé dans le stratifié. | [Claim 15] Kit according to Claim 14, characterized in that the layer of the laminate forming the stent is embedded in the laminate. |
EP21740489.6A 2020-07-10 2021-07-06 Kit or assembly for carrying out guided bone regeneration Pending EP4178498A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2007321A FR3112280B1 (en) 2020-07-10 2020-07-10 Kit or set for the implementation of guided bone regeneration
PCT/EP2021/068707 WO2022008537A1 (en) 2020-07-10 2021-07-06 Kit or assembly for carrying out guided bone regeneration

Publications (1)

Publication Number Publication Date
EP4178498A1 true EP4178498A1 (en) 2023-05-17

Family

ID=73497868

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21740489.6A Pending EP4178498A1 (en) 2020-07-10 2021-07-06 Kit or assembly for carrying out guided bone regeneration

Country Status (3)

Country Link
EP (1) EP4178498A1 (en)
FR (1) FR3112280B1 (en)
WO (1) WO2022008537A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2691901B1 (en) * 1992-06-04 1995-05-19 Centre Nat Rech Scient Use of mixtures of polymers derived from lactic acids in the preparation of bioresorbable membranes for guided tissue regeneration, in particular in periodontology.
FR2713090A1 (en) * 1993-12-03 1995-06-09 Scortecci Gerard Bone tissue regeneration promotion device, esp. for dental surgery
US5919234A (en) * 1996-08-19 1999-07-06 Macropore, Inc. Resorbable, macro-porous, non-collapsing and flexible membrane barrier for skeletal repair and regeneration
ATE270905T1 (en) * 1998-12-14 2004-07-15 Osteotech Inc BONE TRANSPLANT FROM BONE PARTICLES
US6333029B1 (en) * 1999-06-30 2001-12-25 Ethicon, Inc. Porous tissue scaffoldings for the repair of regeneration of tissue
EP2309950A1 (en) * 2008-07-11 2011-04-20 Integra LifeSciences Corporation Resorbable medical implants and related methods

Also Published As

Publication number Publication date
FR3112280A1 (en) 2022-01-14
FR3112280B1 (en) 2022-09-16
WO2022008537A1 (en) 2022-01-13

Similar Documents

Publication Publication Date Title
EP0836838B1 (en) Anatomical prosthesis for inguinal hernia repair via open of laparoscopic surgery
EP1361817B1 (en) Bone repair device
EP1897509A1 (en) Arthrodesis plate for a metatarsal-phalanges joint
FR2977789A1 (en) PROSTHETIC FOR UMBILIC HERNIA
WO2006089380A1 (en) Bone implant
EP1137375A1 (en) Scleral expanding segment
FR2898486A1 (en) IMPLANTABLE PLATE AND METHOD FOR MANUFACTURING THE SAME
WO2022008537A1 (en) Kit or assembly for carrying out guided bone regeneration
WO2016055752A1 (en) Synthetic block intended for filling in a bone defect and method for manufacturing same
FR2742982A1 (en) METHOD AND DEVICE FOR FACILITATING BONE GROWTH, IN PARTICULAR DENTAL SURGERY AND MAXILLO-FACIAL SURGERY AND DEVICE FOR CARRYING OUT SAID METHOD
EP3817689A1 (en) Abutment and healing cuff device for dental implant
FR2604085A1 (en) OSTEOSYNTHESIS PLATE FOR CONTAINING AND REDUCING COLLAPSE OF ORBITARY FLOORS
EP1625831A1 (en) Prosthetic implant for obstructing.
CA3124169C (en) Device for guided bone regeneration and production method
WO2023208968A1 (en) Titanium device for guided bone regeneration, and manufacturing process
WO2020249702A1 (en) Bio-functionalised implant part
KR101405839B1 (en) Membrane For Alveolar Bone Regeneration
BE1028336B1 (en) AGENCY COVER DEVICE TO PROMOTE BONE REGENERATION
KR102566819B1 (en) Dental Membrane and Method For Producing The Same
KR20110003208U (en) Dental membrane
EP1558172B1 (en) Intermediate composite part for shaping reinforcing prostheses
FR3069430A1 (en) SUB-TALIAL IMPLANT FOR ARTHROUSISM OF TALO-CALCANEAN ARTICULATION
FR3093911A1 (en) HERNIA REPAIR PROSTHESIS
FR3099361A1 (en) Textile barrier membrane
CA3197889A1 (en) Device forming a barrier to bone regeneration

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20230210

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)