FR2616319A1 - Flexible biocompatible intramedullary obturator - Google Patents

Flexible biocompatible intramedullary obturator Download PDF

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Publication number
FR2616319A1
FR2616319A1 FR8708244A FR8708244A FR2616319A1 FR 2616319 A1 FR2616319 A1 FR 2616319A1 FR 8708244 A FR8708244 A FR 8708244A FR 8708244 A FR8708244 A FR 8708244A FR 2616319 A1 FR2616319 A1 FR 2616319A1
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obturator
bone
intramedullary
flexible
cement
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FR2616319B1 (en
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Jean Frismand
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SCIENCE MEDECINE SA
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SCIENCE MEDECINE SA
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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
    • A61F2/30721—Accessories
    • A61F2/30723—Plugs or restrictors for sealing a cement-receiving space
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS 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
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS 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
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A61L27/58—Materials at least partially resorbable by the body
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
    • C08L5/04—Alginic acid; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L89/00—Compositions of proteins; Compositions of derivatives thereof
    • C08L89/04—Products derived from waste materials, e.g. horn, hoof or hair
    • C08L89/06—Products derived from waste materials, e.g. horn, hoof or hair derived from leather or skin, e.g. gelatin
    • 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
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3662—Femoral shafts
    • A61F2/3676—Distal or diaphyseal parts of shafts
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    • 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
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    • 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
    • A61F2002/30062—(bio)absorbable, biodegradable, bioerodable, (bio)resorbable, resorptive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • 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
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    • 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
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    • 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
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    • A61F2002/30242—Three-dimensional shapes spherical
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
    • A61F2002/30884—Fins or wings, e.g. longitudinal wings for preventing rotation within the bone cavity
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2002/4631—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor the prosthesis being specially adapted for being cemented
    • 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
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    • A61F2210/0004—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof bioabsorbable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0067—Three-dimensional shapes conical
    • 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
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    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
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    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005—The prosthesis being constructed from a particular material
    • A61F2310/00365—Proteins; Polypeptides; Degradation products thereof
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    • A61L2430/00—Materials or treatment for tissue regeneration
    • A61L2430/02—Materials or treatment for tissue regeneration for reconstruction of bones; weight-bearing implants
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Dermatology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • Epidemiology (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Cardiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Prostheses (AREA)

Abstract

The invention relates to a flexible biocompatible intramedullary obturator intended for fitting a prosthesis in orthopaedic surgery. The invention consists of an obturator of flexible consistency for completely deforming under the action of stresses encountered during its fitting. Any pressing together of the walls or any convex deformation on the internal surface of the bone will tend to compress the obturator and lead to the filling of any concave surface. It is free of open worked fins in order to prevent leakage of cement. The modulus of elasticity of the material used lies between 0.5 and 50 N/mm<2>.

Description

La présente invention concerne un obturateur biocompatible intrsw médullaire souple. The present invention relates to a biocompatible intrswith flexible medullary obturator.

Cette invention a rapport à la chirurgie orthopédique dans laquelle une prothèse est fixée par du ciment chirurgical dans l'os d'un patient pour remplacer une articulation défectueuse. Un bouchon ou obturateur (1) est fri- quement placé au fond de la cavité osseuse (2) avant d'injecter le ciment (3) puis de placer la prothèse (4) Fig 1. This invention relates to orthopedic surgery in which a prosthesis is fixed by surgical cement in the bone of a patient to replace a defective joint. A plug or obturator (1) is placed tightly at the bottom of the bone cavity (2) before injecting the cement (3) and then placing the prosthesis (4) Fig 1.

Cet obturateur est destiné d'une part, à éviter que le ciment chirurgical utilisé pour fixer la prothèse ne pénètre plus profondément que nécessaire dans le canal médullaire de l'os, d'autre part, à rendre ce ciment plus homogène au niveau de la queue de la prothèse, donc de meilleure qualité mécanique. This obturator is intended, on the one hand, to prevent the surgical cement used to fix the prosthesis from penetrating more deeply than necessary into the medullary canal of the bone, on the other hand, to make this cement more homogeneous at the level of the bone. tail of the prosthesis, therefore of better mechanical quality.

La présente invention concerne un obturateur biocompatible intramédullaire souple, notamment d'un canal médullaire fémoral. The present invention relates to a flexible intramedullary biocompatible obturator, in particular of a femoral medullary canal.

Actuellement, les obturateurs ne donnent pas entièrement satisfaction. Ils sont généralement réalisés en polyéthylène, de forme globalement cylindrique ou tronconique. Un système d'ailette leur confère une souplesse partielle. Mais la section des os considérés est de forme très irrégulière et l'adaptation morphologique est mauvaise car les obturateurs ne se déforment que partiellement et uniquement de part la géométrie de leur usinage. Selon la figure 2, représentant la section transversale d'un os, un système à ailette (5) autorise un effacement (6), mais aucune expension n'est possible dans une concavité (7) d'où obturation incomplète. Il en résulte des fuites de ciment sous l'obturateur et donc un échec du principe. Currently, the shutters are not entirely satisfactory. They are generally made of polyethylene, of generally cylindrical or frustoconical shape. A fin system gives them partial flexibility. But the section of the bones considered is very irregular in shape and the morphological adaptation is poor because the obturators are only partially deformed and only because of the geometry of their machining. According to Figure 2, showing the cross section of a bone, a fin system (5) allows erasure (6), but no expansion is possible in a concavity (7) resulting in incomplete obturation. This results in cement leaks under the shutter and therefore a failure of the principle.

L'invention vise à fournir un obturateur de consistance souple, pour se déformer totalement et s'adapter exactement à la forme de l'os. The invention aims to provide an obturator of flexible consistency, to be completely deformed and to adapt exactly to the shape of the bone.

Selon le shéma 3 L'obturateur (1) de forme globalement cylindrique au départ, comprimé par deux faces rapprochées (8) de l'os ira remplir partiellement ou en totalité. une ou plusieurs concavités (7) de l'os. -De façon générale, tout rapprochement des parois ou toute déformation convexe sur la surface interne #de l'os aura tendance à comprimer l'obturateur et à entrainer le remplissage de toute surface concave. According to diagram 3 The obturator (1) of generally cylindrical shape at the start, compressed by two close faces (8) of the bone will go to fill partially or completely. one or more concavities (7) of the bone. -In general, any approximation of the walls or any convex deformation on the internal surface of the bone will tend to compress the obturator and cause the filling of any concave surface.

Ce mécanisme d'adaptation de forme est dû à la conservation de volume de l'obturateur et à sa possibilité de déformation. This form adaptation mechanism is due to the conservation of the volume of the shutter and its possibility of deformation.

C'est un principe élémentaire de physique, d'adaptation de la forme du contenu à la forme du contenant, principe concernant les liquides mais que l'on peut appliquer à tout corps déformable sous l'effet d'une action extérieure. It is an elementary principle of physics, of adaptation of the shape of the content to the shape of the container, principle concerning liquids but which can be applied to any deformable body under the effect of an external action.

Les essais que nous avons réalisés ont déterminé que le module d'élasticité ( Module YOUNG = E ) du matériau doit être compris entre 0.5 et 50 N/mm2 en fonction de l'importance de la surface de l'obturateur au contact de la paroi osseuse ( cylindrique de 6 à 25 ma de diamètre et de 8 à 30 ma de hauteur. The tests that we carried out determined that the modulus of elasticity (YOUNG modulus = E) of the material must be between 0.5 and 50 N / mm2 depending on the size of the surface of the shutter in contact with the wall. bony (cylindrical 6 to 25 m in diameter and 8 to 30 m in height.

Cet obturateur est donc de consistance très souple par rapport à l'os cortical ( E = 17 à 24. 000 N/mm2 ) et par rapport au polyéthylène utilisé actuellement ( E = 7 à 14. 000 N/mm2 ). This obturator is therefore of very flexible consistency compared to the cortical bone (E = 17 to 24,000 N / mm2) and compared to the polyethylene currently used (E = 7 to 14,000 N / mm2).

Un obturateur de consistance plus souple ne peut résister à la pression du ciment, et un obturateur de consistance plus dure ne peut se déformer. A plug of a softer consistency cannot withstand the pressure of the cement, and a plug of a harder consistency cannot deform.

Cet obturateur est réalisé en différents diamètres pour s'adapter aux différentes tailles de l'os. Il n'y a aucun système d'ailettes ajourées pour éviter tout orifice de fuite du ciment. This obturator is made in different diameters to adapt to the different sizes of the bone. There is no perforated fin system to prevent any cement leakage hole.

Lors de l'intervention le chirurgien détermine la taille de l'obtu- rateur à l'aide de gabarits d'essais. Ensuite il enfonce cet obturateur à l'aide d'un impacteur à petits coups de marteau. Ces contraintes suffisent à déformer l'obturateur qui s'adapte à la forme de l'os tout en présentant une résistance suffisante pour résister à la pression du ciment lors de la mise en place ultérieure de la prothèse. During the operation, the surgeon determines the size of the obturator using test templates. Then he pushes in this shutter using an impactor with small blows of a hammer. These stresses are sufficient to deform the obturator which adapts to the shape of the bone while having sufficient strength to withstand the pressure of the cement during the subsequent placement of the prosthesis.

La réalisation d'un obturateur de toute autre forme est possible, par exemple une sphère, un tronc de cône..., du moment que le produit pourra se déformer de façon homogène sans créer d'orifice de fuite. The production of a shutter of any other shape is possible, for example a sphere, a truncated cone, etc., as long as the product can be deformed homogeneously without creating a leak orifice.

Ltinvention peut être réalisée à partir de collagène hydrolysé, matériau parfaitement biocompatible, et dont on peut régler le degré de souplesse souhaité, p#ar exemple par déshydration progressive,
L'invention peut également être réalisé à partir d'alginate, autre matériau biocompatible.The invention can be made from hydrolyzed collagen, a perfectly biocompatible material, and the desired degree of flexibility can be adjusted, for example by progressive dehydration,
The invention can also be made from alginate, another biocompatible material.

Ces matériaux présentent en autre l'intérêt d'être biodégradable, c'est à dire de disparaître de l'organisme, ce qui est intéressant en cas de reprise de la prothèse. These materials also have the advantage of being biodegradable, that is to say of disappearing from the body, which is advantageous in the event of resumption of the prosthesis.

Claims (5)

REVENDICATIONS 1) Obturateur intramédullaire d'un canal osseux caractérisé en ce qu'il est réalisé en un materiau biocompatible de consistance souple, déformable sous l'action des contraintes imposées lors de sa mise en place dans un os. 1) Intramedullary obturator of a bone canal characterized in that it is made of a biocompatible material of flexible consistency, deformable under the action of the constraints imposed during its placement in a bone. 2) Obturateur conforme à la revendication 1, caractérisé en ce que son module d'élasticité ( Module YOUNG ) est compris entre 0.5 et 50 N/mm2. 2) A shutter according to claim 1, characterized in that its modulus of elasticity (YOUNG modulus) is between 0.5 and 50 N / mm2. 3) Obturateur conforme à la revendication 1 et 2 caractérisé en ce que la forme est globalement cylindrique, sphérique ou tronconique mais sans ailettes ajourées. 3) A shutter according to claim 1 and 2 characterized in that the shape is generally cylindrical, spherical or frustoconical but without perforated fins. 4) Obturateur conforme à la revendication 1,2 et 3 caractérisé en ce que le matériau est à la base de collagène hydrolysé. 4) Obturator according to claim 1, 2 and 3, characterized in that the material is the basis of hydrolyzed collagen. 5) Obturateur conforme à la revendication 1,2 et 3 caractérisé en ce que le matériau est à base d'alginate. 5) A shutter according to claim 1, 2 and 3, characterized in that the material is based on alginate.
FR8708244A 1987-06-12 1987-06-12 FLEXIBLE INTRAMEDULAR BIOCOMPATIBLE SHUTTER Expired - Lifetime FR2616319B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2697430A1 (en) * 1992-11-03 1994-05-06 Frismand Jean Supple and biocompatible stopper for medullary canal of bone - made from series of rings on central core, made e.g. from natural or synthetic polymer
WO1995034331A1 (en) * 1994-06-10 1995-12-21 Ao-Forschungsinstitut Davos Self-expanding, adaptable cavity plug for use in implantation of endo-joint prosthesis
FR2763500A1 (en) * 1997-05-21 1998-11-27 Landanger Camus Sa Stopper for diaphysis canal specially of hip prosthesis

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2047541A (en) * 1979-04-27 1980-12-03 Dow Corning Surgical replacement of diseased or damaged of diseased or damaged joints of the human body
EP0023787A2 (en) * 1979-07-25 1981-02-11 University Of Exeter Plugs for the medullary canal of a bone
EP0140596A2 (en) * 1983-10-04 1985-05-08 JOHNSON &amp; JOHNSON Protein/polysaccharide complexes
EP0178173A2 (en) * 1984-10-12 1986-04-16 Dow Corning Corporation Method of making an intramedullary bone plug and bone plug made thereby
DE3445709A1 (en) * 1984-12-14 1986-06-19 Klaus Dr.med. Dr.med.habil. 8000 München Draenert SURGICAL MATERIAL CLOSURE
US4642124A (en) * 1984-06-11 1987-02-10 Clemson University Hip prosthesis

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2047541A (en) * 1979-04-27 1980-12-03 Dow Corning Surgical replacement of diseased or damaged of diseased or damaged joints of the human body
EP0023787A2 (en) * 1979-07-25 1981-02-11 University Of Exeter Plugs for the medullary canal of a bone
EP0140596A2 (en) * 1983-10-04 1985-05-08 JOHNSON &amp; JOHNSON Protein/polysaccharide complexes
US4642124A (en) * 1984-06-11 1987-02-10 Clemson University Hip prosthesis
EP0178173A2 (en) * 1984-10-12 1986-04-16 Dow Corning Corporation Method of making an intramedullary bone plug and bone plug made thereby
DE3445709A1 (en) * 1984-12-14 1986-06-19 Klaus Dr.med. Dr.med.habil. 8000 München Draenert SURGICAL MATERIAL CLOSURE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2697430A1 (en) * 1992-11-03 1994-05-06 Frismand Jean Supple and biocompatible stopper for medullary canal of bone - made from series of rings on central core, made e.g. from natural or synthetic polymer
WO1995034331A1 (en) * 1994-06-10 1995-12-21 Ao-Forschungsinstitut Davos Self-expanding, adaptable cavity plug for use in implantation of endo-joint prosthesis
FR2763500A1 (en) * 1997-05-21 1998-11-27 Landanger Camus Sa Stopper for diaphysis canal specially of hip prosthesis

Also Published As

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