FR2815846A1 - Device for anterior vertebral arthrodesis comprises cage inserted between two vertebrae and connector for linking vertebrae which is screwed on to top of cage - Google Patents

Device for anterior vertebral arthrodesis comprises cage inserted between two vertebrae and connector for linking vertebrae which is screwed on to top of cage Download PDF

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Publication number
FR2815846A1
FR2815846A1 FR0013952A FR0013952A FR2815846A1 FR 2815846 A1 FR2815846 A1 FR 2815846A1 FR 0013952 A FR0013952 A FR 0013952A FR 0013952 A FR0013952 A FR 0013952A FR 2815846 A1 FR2815846 A1 FR 2815846A1
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France
Prior art keywords
cage
vertebrae
proximal
hole
connecting piece
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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.)
Granted
Application number
FR0013952A
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French (fr)
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FR2815846B1 (en
Inventor
Jean Luc Barat
Alain Czorny
Jean Jacques Martin
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Fixano SA
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Fixano SA
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Priority to FR0013952A priority Critical patent/FR2815846B1/en
Publication of FR2815846A1 publication Critical patent/FR2815846A1/en
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Publication of FR2815846B1 publication Critical patent/FR2815846B1/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • A61F2/446—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages having a circular or elliptical cross-section substantially parallel to the axis of the spine, e.g. cylinders or frustocones
    • A—HUMAN NECESSITIES
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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
    • A61F2/30—Joints
    • A61F2/30721—Accessories
    • A61F2/30744—End caps, e.g. for closing an endoprosthetic cavity
    • A—HUMAN NECESSITIES
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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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    • A61F2/442—Intervertebral or spinal discs, e.g. resilient
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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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    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/4611—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
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    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30405—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by screwing complementary threads machined on the parts themselves
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    • 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
    • A61F2002/30576—Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs
    • A61F2002/30578—Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs having apertures, e.g. for receiving fixation screws
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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
    • A61F2002/30316—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
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    • 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
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    • A—HUMAN NECESSITIES
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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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    • A61F2/02—Prostheses implantable into the body
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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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    • A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

The device for anterior vertebral arthrodesis comprises a cage (2) which is inserted between two vertebrae. A connector (4) for linking the vertebrae is screwed on to the top of the cage

Description

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La présente invention concerne un dispositif d'arthrodèse vertébrale, particulièrement destiné à réaliser une arthrodèse cervicale et à être implanté par voie antérieure.  The present invention relates to a vertebral arthrodesis device, particularly intended to perform a cervical arthrodesis and to be implanted by the anterior route.

Pour réaliser une arthrodèse cervicale par voie antérieure, il a été conçu d'implanter une cage entre deux vertèbres et de relier cette cage à une plaque qui est fixée aux corps vertébraux, de part et d'autre de la cage, par l'intermédiaire de vis d'ancrage. La cage contient un greffon osseux ou des copeaux d'os spongieux, qui permettent une croissance des cellules osseuses dans l'espace intervertébral de manière à ce que soit obtenue une"fusion"osseuse, c'est-à-dire une immobilisation des deux vertèbres suite à ladite croissance.  To carry out an anterior cervical arthrodesis, it was designed to implant a cage between two vertebrae and to connect this cage to a plate which is fixed to the vertebral bodies, on either side of the cage, via anchor screw. The cage contains a bone graft or cancellous bone chips, which allow bone cells to grow in the intervertebral space so that a bone "fusion" is obtained, that is to say immobilization of the two vertebrae following said growth.

Dans le matériel connu, cette cage présente un trou proximal taraudé et est reliée à la plaque par une vis engagée au travers d'un trou que comprend cette plaque puis au travers dudit trou proximal taraudé. Ladite plaque présente quant à elle une forme allongée et comprend, à ses extrémités, des trous pour le passage des vis qui permettent son ancrage aux corps vertébraux.  In known equipment, this cage has a tapped proximal hole and is connected to the plate by a screw engaged through a hole that this plate comprises and then through said tapped proximal hole. Said plate has an elongated shape and comprises, at its ends, holes for the passage of screws which allow its anchoring to the vertebral bodies.

Le cas échéant, plusieurs cages sont implantées dans plusieurs espaces intervertébraux consécutifs, et la plaque présente une longueur telle qu'elle s'étend le long de l'ensemble des vertèbres traitées. Chaque cage présente le trou proximal précité et est reliée à la plaque comme indiqué ci-dessus.  If necessary, several cages are implanted in several consecutive intervertebral spaces, and the plate has a length such that it extends along all of the treated vertebrae. Each cage has the aforementioned proximal hole and is connected to the plate as indicated above.

Ce matériel a pour inconvénient de ne pas permettre une parfaite immobilisation de la cage par rapport à la plaque, et donc aux vertèbres, alors qu'une telle immobilisation est nécessaire à l'obtention d'une fusion osseuse solide. De plus, l'axe du trou proximal taraudé de la cage peut ne pas être parallèle à l'axe du trou de la plaque, ce qui peut poser de sérieux problèmes de raccordement de la cage à la plaque ainsi que d'exercice de contraintes en porte-à-faux sur la vis qui permet de relier la cage et la plaque.  This material has the disadvantage of not allowing perfect immobilization of the cage relative to the plate, and therefore to the vertebrae, while such immobilization is necessary for obtaining a solid bone fusion. In addition, the axis of the threaded proximal hole of the cage may not be parallel to the axis of the plate hole, which can cause serious problems of connection of the cage to the plate as well as exercise of constraints. cantilevered on the screw which connects the cage and the plate.

La présente invention vise à remédier à ces inconvénients importants, en fournissant par conséquent un dispositif d'arthrodèse vertébrale, en particulier destiné à une arthrodèse cervicale et à être implanté par voie antérieure, qui permette d'obtenir une parfaite immobilisation de la cage par rapport à la plaque, et donc aux vertèbres, et  The present invention aims to remedy these significant drawbacks, by consequently providing a vertebral arthrodesis device, in particular intended for cervical arthrodesis and to be implanted by the anterior route, which makes it possible to obtain perfect immobilization of the cage relative to to the plate, and therefore to the vertebrae, and

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qui élimine les problèmes précités de pose et d'exercice de contraintes en porte-à-faux.  which eliminates the aforementioned problems of installation and exercise of cantilever constraints.

Ce dispositif comprend, de manière connue en soi, au moins une cage intervertébrale, une pièce de liaison des deux vertèbres entre lesquelles la ou les cages sont placées et des moyens permettant de relier chaque cage et cette pièce de liaison.  This device comprises, in a manner known per se, at least one intervertebral cage, a connecting piece of the two vertebrae between which the cage or cages are placed and means making it possible to connect each cage and this connecting piece.

Selon l'invention, - chaque cage présente une forme de révolution, et comprend une collerette proximale, des moyens proximaux de prise, permettant l'entraînement en rotation de cette cage autour de son axe, et une zone filetée située à proximité de la collerette, sur le côté distal de celle-ci ; et - la pièce de liaison présente au moins une partie annulaire taraudée, propre à recevoir une cage à travers elle par vissage.  According to the invention, - each cage has a shape of revolution, and comprises a proximal flange, proximal gripping means, allowing the rotation of this cage around its axis, and a threaded zone located near the flange , on the distal side thereof; and - the connecting piece has at least one tapped annular part, suitable for receiving a cage through it by screwing.

La pièce de liaison est mise en place contre les corps vertébraux des vertèbres à traiter, de telle sorte que l'axe de chaque partie annulaire se trouve sensiblement au niveau de chaque espace intervertébral à traiter, puis les vis d'ancrage de cette pièce de liaison aux corps vertébraux sont mises en place. Cette pièce de liaison se trouve ainsi solidement fixée aux vertèbres. Chaque cage est alors engagée au travers de la partie annulaire correspondante puis dans le logement préalablement aménagé dans le disque intervertébral et le cas échéant dans les plateaux vertébraux, jusqu'à venue de la zone filetée qu'elle comprend en coopération avec le taraudage de la partie annulaire. Le logement est éventuellement rectifié s'il apparaît qu'il fait obstacle à cette venue en prise. La cage est vissée jusqu'à venue de la collerette qu'elle comprend en appui contre cette partie annulaire.  The connecting piece is placed against the vertebral bodies of the vertebrae to be treated, so that the axis of each annular part is substantially at the level of each intervertebral space to be treated, then the anchoring screws of this piece of connection to the vertebral bodies are put in place. This connecting piece is thus securely attached to the vertebrae. Each cage is then engaged through the corresponding annular part and then in the housing previously arranged in the intervertebral disc and if necessary in the vertebral plates, until the threaded zone which it includes in cooperation with the tapping of the annular part. The housing may be corrected if it appears that it obstructs this coming into engagement. The cage is screwed until the flange which it comprises bears against this annular part.

Grâce à cette partie annulaire, l'assemblage entre la cage et la pièce de liaison est parfaitement résistant, ce qui garantit la parfaite immobilisation de la cage par rapport aux vertèbres. La position de cette cage est déterminée par cette même partie annulaire, ce qui permet d'éliminer les problèmes précités d'assemblage de la cage à la pièce de liaison et d'exercice de contraintes en porte-à-faux.  Thanks to this annular part, the assembly between the cage and the connecting piece is perfectly resistant, which guarantees perfect immobilization of the cage relative to the vertebrae. The position of this cage is determined by this same annular part, which makes it possible to eliminate the aforementioned problems of assembly of the cage to the connecting piece and of stressing exercise in overhang.

La cage pourrait être lisse mais comprend de préférence une ou plusieurs saillies au niveau de sa paroi circonférentielle, lui permettant de prendre appui contre les vertèbres entre lesquelles elle est insérée, et d'aviver les parois de ces vertèbres venant en contact avec elle lorsqu'elle  The cage could be smooth but preferably comprises one or more protrusions at its circumferential wall, allowing it to bear against the vertebrae between which it is inserted, and to sharpen the walls of these vertebrae coming into contact with it when she

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est entraînée en rotation au moment de son vissage dans ladite partie annulaire.  is rotated when it is screwed into said annular part.

Cette ou ces saillies favorisent l'immobilisation de la cage par rapport aux vertèbres, et l'avivement des surfaces de contact des vertèbres avec la cage favorise la croissance des cellules osseuses autour de la cage.  This or these projections promote immobilization of the cage relative to the vertebrae, and the heightening of the contact surfaces of the vertebrae with the cage promotes the growth of bone cells around the cage.

Cette saillie peut présenter la forme d'un filet de pas large, favorisant l'insertion de la cage par vissage.  This projection may have the shape of a wide pitch thread, favoring the insertion of the cage by screwing.

De préférence, cette dernière est creuse de manière à pouvoir recevoir un greffon et/ou des copeaux d'os spongieux dans la cavité qu'elle délimite intérieurement, et est percée d'au moins un trou radial, permettant la croissance des cellules osseuses à travers sa paroi.  Preferably, the latter is hollow so as to be able to receive a graft and / or chips of cancellous bone in the cavity which it delimits internally, and is pierced with at least one radial hole, allowing the growth of bone cells to through its wall.

La croissance osseuse s'étend ainsi au travers de la cage, ce qui assure l'immobilisation définitive de cette dernière.  Bone growth thus extends through the cage, which ensures the final immobilization of the latter.

Le dispositif peut comprendre un bouchon fileté pouvant être vissé sur une zone proximale taraudée de la paroi de la cage qui délimite la cavité, afin de fermer cette cavité sur le côté proximal de la cage.  The device can comprise a threaded plug which can be screwed onto a threaded proximal zone of the wall of the cage which delimits the cavity, in order to close this cavity on the proximal side of the cage.

Avantageusement, ladite partie annulaire présente un évidement circulaire proximal définissant un épaulement, et ladite collerette est conformée pour pouvoir être engagée dans cet évidement en fin de vissage.  Advantageously, said annular part has a proximal circular recess defining a shoulder, and said flange is shaped to be able to be engaged in this recess at the end of screwing.

La venue de cette collerette en appui contre ledit épaulement en fin de vissage permet de bloquer la cage en rotation par rapport à la pièce de liaison, ce qui contribue à la parfaite liaison de la cage et de cette pièce de liaison le temps que la croissance osseuse s'opère.  The coming of this flange bearing against said shoulder at the end of screwing makes it possible to block the cage in rotation with respect to the connecting piece, which contributes to the perfect connection of the cage and this connecting piece while growth bone is operated.

De préférence, la pièce de liaison présente au moins deux oreilles faisant saillie de ses extrémités, chacune de ces oreilles étant percée d'un trou pour la réception d'une vis d'ancrage de cette pièce de liaison au corps vertébral de la vertèbre correspondante, et chaque oreille présentant des dimensions telles, et/ou étant réalisée dans un matériau tel, qu'elle peut être déformée plastiquement.  Preferably, the connecting piece has at least two ears projecting from its ends, each of these ears being pierced with a hole for the reception of an anchoring screw of this connecting piece to the vertebral body of the corresponding vertebra , and each ear having such dimensions, and / or being made of a material such that it can be plastically deformed.

Ces oreilles peuvent ainsi être déformées de manière à orienter l'axe des trous qu'elles comprennent, en vue de donner des orientations spécifiques aux vis d'ancrage, si besoin est.  These ears can thus be deformed so as to orient the axis of the holes which they comprise, with a view to giving specific orientations to the anchoring screws, if necessary.

Selon une forme de réalisation préférée de l'invention, le trou que présente au moins une oreille est taraudé et la vis destinée à être  According to a preferred embodiment of the invention, the hole in at least one ear is tapped and the screw intended to be

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engagée dans ce trou présente une portion proximale filetée propre à coopérer avec le taraudage du trou.  engaged in this hole has a threaded proximal portion adapted to cooperate with the tapping of the hole.

Pour sa bonne compréhension, l'invention est à nouveau décrite ci-dessous en référence au dessin schématique annexé représentant, à titre d'exemple non limitatif, une forme de réalisation préférée du dispositif d'arthrodèse vertébrale qu'elle concerne.  For a good understanding, the invention is again described below with reference to the appended diagrammatic drawing representing, by way of nonlimiting example, a preferred embodiment of the vertebral arthrodesis device that it relates to.

La figure 1 est une vue en perspective des différentes pièces qui le composent, avant montage ; la figure 2 en est une vue de côté, après montage ; les figures 3 et 4 en sont des vues respectivement en perspective et de côté, après mise en place sur des vertèbres, et la figure 5 est une vue de face de deux dispositifs implantés dans deux espaces intervertébraux consécutifs.  Figure 1 is a perspective view of the different parts that compose it, before assembly; Figure 2 is a side view, after assembly; Figures 3 and 4 are perspective and side views respectively, after placement on the vertebrae, and Figure 5 is a front view of two devices implanted in two consecutive intervertebral spaces.

Les figures 1 et 2 représentent un dispositif 1 d'arthrodèse vertébrale, destiné à réaliser une arthrodèse cervicale et à être implanté par voie antérieure.  FIGS. 1 and 2 represent a device 1 for vertebral arthrodesis, intended to perform a cervical arthrodesis and to be implanted by the anterior route.

Ce dispositif 1 comprend une cage intervertébrale 2, un bouchon fileté 3, une pièce 4 de liaison des deux vertèbres adjacentes à traiter, et deux vis d'ancrage 5 permettant la fixation de la pièce de liaison 4 aux corps vertébraux des deux vertèbres à traiter.  This device 1 comprises an intervertebral cage 2, a threaded plug 3, a piece 4 connecting the two adjacent vertebrae to be treated, and two anchoring screws 5 allowing the attachment of the connecting piece 4 to the vertebral bodies of the two vertebrae to be treated .

La cage 2 présente une forme générale cylindrique. Elle est creuse et délimite intérieurement une cavité 10 qui est ouverte du côté proximal et qui est fermée du côté distal.  The cage 2 has a generally cylindrical shape. It is hollow and internally delimits a cavity 10 which is open on the proximal side and which is closed on the distal side.

La cage 2 comprend une collerette proximale 11, dans laquelle sont aménagées, à partir de sa face proximale, deux rainures 12 disposées diamétralement. Ces rainures 12 sont propres à recevoir deux tétons de forme correspondante aménagés dans l'extrémité d'un instrument de pose (non représenté), cet instrument venant ainsi en prise de rotation avec la cage 2 afin de permettre l'entraînement de cette cage en rotation.  The cage 2 comprises a proximal flange 11, in which are arranged, from its proximal face, two grooves 12 arranged diametrically. These grooves 12 are suitable for receiving two studs of corresponding shape arranged in the end of a setting instrument (not shown), this instrument thus coming into rotation with the cage 2 in order to allow the driving of this cage in rotation.

La cage 2 comprend également une zone filetée 13 située à proximité de la collerette 11, sur le côté distal de celle-ci.  The cage 2 also includes a threaded zone 13 located near the flange 11, on the distal side of the latter.

En outre, la cage 2 présente une saillie 14 conformée en filet de pas large, située sur sa paroi circonférentielle, en dehors de la collerette 11 et de la zone 13. Cette saillie 14 est interrompue par des séries longitudinales de trous 15, qui mettent la cavité 10 en communication avec l'extérieur de la cage 2. Cette dernière présente d'autres séries  In addition, the cage 2 has a projection 14 shaped as a wide pitch thread, situated on its circumferential wall, outside of the collar 11 and of the zone 13. This projection 14 is interrupted by longitudinal series of holes 15, which put the cavity 10 in communication with the outside of the cage 2. The latter has other series

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longitudinales de trous 16, qui sont aménagées entre les séries de trous 15 et entre les spires que forme la saillie 14.  longitudinal holes 16, which are arranged between the series of holes 15 and between the turns formed by the projection 14.

Du côté proximal, la cage 2 présente une zone taraudée 17 propre à recevoir le bouchon fileté 3 par vissage, pour fermer la cavité 10.  On the proximal side, the cage 2 has a tapped zone 17 suitable for receiving the threaded plug 3 by screwing, to close the cavity 10.

Ce bouchon fileté 3 comprend, pour sa manoeuvre en rotation, une cavité hexagonale proximale 20.  This threaded plug 3 comprises, for its rotary operation, a proximal hexagonal cavity 20.

La pièce de liaison 4 présente une partie annulaire taraudée 23, dont le taraudage est propre à coopérer avec la zone 13, un évidement circulaire proximal 24 définissant un épaulement, propre à recevoir la collerette 11 en fin de vissage de la cage 2 dans la partie annulaire 23, et deux oreilles 25 propres à recevoir les vis 5 dans des trous taraudés 26 qu'elles comprennent.  The connecting piece 4 has a tapped annular part 23, the tapping of which is capable of cooperating with the zone 13, a proximal circular recess 24 defining a shoulder, suitable for receiving the collar 11 at the end of screwing of the cage 2 in the part annular 23, and two ears 25 adapted to receive the screws 5 in tapped holes 26 which they include.

La pièce 4 est réalisée dans un matériau plastiquement déformable tel que du titane ou de l'acier inoxydable, et l'épaisseur des oreilles 25 est réduite par rapport à celle de la partie 23, de sorte que ces oreilles 25 peuvent être déformées plastiquement.  The part 4 is made of a plastically deformable material such as titanium or stainless steel, and the thickness of the ears 25 is reduced compared to that of the part 23, so that these ears 25 can be plastically deformed.

Chaque vis 5 présente un filet 30 adapté à une insertion et à une prise d'appui dans les corps vertébraux, et comprend une zone filetée proximale 31, propre à coopérer avec les taraudages des trous 26.  Each screw 5 has a thread 30 suitable for insertion and for taking support in the vertebral bodies, and comprises a proximal threaded zone 31, suitable for cooperating with the threads of the holes 26.

En pratique, ainsi que cela se comprend en référence aux figures 3 à 5, la pièce 4 est mise en place contre les corps vertébraux 51 des vertèbres 50 à traiter, de telle sorte que l'axe de la partie annulaire 23 se trouve sensiblement au niveau de l'espace intervertébral concerné. Les oreilles 25 sont éventuellement déformées de manière à permettre d'orienter l'axe des trous 26 en fonction des orientations spécifiques à donner aux vis 5, si besoin est, et ces vis 5 sont mises en place, de manière à fixer solidement la pièce 4 aux vertèbres 50.  In practice, as is understood with reference to Figures 3 to 5, the part 4 is placed against the vertebral bodies 51 of the vertebrae 50 to be treated, so that the axis of the annular part 23 is located substantially at level of the intervertebral space concerned. The ears 25 are possibly deformed so as to allow the axis of the holes 26 to be oriented as a function of the specific orientations to be given to the screws 5, if necessary, and these screws 5 are put in place, so as to firmly fix the part. 4 at the vertebrae 50.

Un greffon et/ou des copeaux d'os spongieux sont placés dans la cavité 10, et la cage 2 est engagée au travers de la partie 23 puis dans un logement préalablement aménagé dans le disque intervertébral 52 et le cas échéant dans les plateaux vertébraux 53. Cet engagement est réalisé en entraînant la cage 2 en rotation, la saillie 14 favorisant alors l'avance de celle-ci dans son logement récepteur. En fin d'introduction de la cage 2 dans ce logement, la zone 13 est amenée en coopération avec le taraudage de la partie 23, jusqu'à engagement de la collerette 11 dans l'évidement proximal de cette partie 23. Lors de ce vissage, la saillie 14 permet  A graft and / or cancellous bone chips are placed in the cavity 10, and the cage 2 is engaged through the part 23 then in a housing previously arranged in the intervertebral disc 52 and if necessary in the vertebral plates 53 This engagement is achieved by driving the cage 2 in rotation, the projection 14 then promoting the advance thereof in its receiving housing. At the end of introduction of the cage 2 into this housing, the zone 13 is brought in cooperation with the tapping of the part 23, until engagement of the flange 11 in the proximal recess of this part 23. During this screwing , the projection 14 allows

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d'aviver les parois des plateaux 53, ce qui favorise la croissance des cellules osseuses autour de la cage 2.  to brighten the walls of the trays 53, which promotes the growth of bone cells around the cage 2.

Le bouchon 3 est ensuite vissé sur la cage 2 pour fermer la cavité 10.  The plug 3 is then screwed onto the cage 2 to close the cavity 10.

Lorsque trois vertèbres 50 consécutives sont à traiter, comme le montre la figure 5, deux dispositifs 1 sont mis en place, avec un décalage angulaire des oreilles 25 d'un dispositif à l'autre, de sorte que les oreilles 25 adjacentes des deux dispositifs 1 soient placées côte à côte.  When three vertebrae 50 consecutive are to be treated, as shown in FIG. 5, two devices 1 are put in place, with an angular offset of the ears 25 from one device to another, so that the ears 25 adjacent to the two devices 1 are placed side by side.

En variante, la pièce 4 pourrait comprendre deux parties 23 ou plus, des trous 26 aménagés entre deux parties 23 consécutives et deux oreilles 25 à ses extrémités, cette pièce 4 pouvant recevoir deux cages 2 ou plus, comme indiqué précédemment.  As a variant, the part 4 could comprise two parts 23 or more, holes 26 arranged between two consecutive parts 23 and two ears 25 at its ends, this part 4 being able to receive two or more cages 2, as indicated above.

Ainsi qu'il apparaît de ce qui précède, l'invention fournit un dispositif d'arthrodèse vertébrale, particulièrement destiné à réaliser une arthrodèse cervicale et à être implanté par voie antérieure, qui remédie aux inconvénients des dispositifs homologues de la technique antérieure puisqu'il permet d'obtenir une parfaite immobilisation de la cage par rapport à la pièce de liaison des vertèbres et d'éliminer des problèmes de pose et d'exercice de contraintes en porte-à-faux existants avec le matériel de la technique antérieure.  As appears from the above, the invention provides a vertebral arthrodesis device, particularly intended to perform a cervical arthrodesis and to be implanted anteriorly, which overcomes the drawbacks of the homologous devices of the prior art since makes it possible to obtain perfect immobilization of the cage relative to the connecting piece of the vertebrae and to eliminate problems of fitting and exerting constraints in overhang existing with the equipment of the prior art.

Il va de soi que l'invention n'est pas limitée à la forme de réalisation décrite ci-dessus à titre d'exemple mais qu'elle en embrasse au contraire toutes les variantes de réalisation couvertes par les revendications ci-annexées. It goes without saying that the invention is not limited to the embodiment described above by way of example, but on the contrary embraces all the variant embodiments covered by the claims appended hereto.

Claims (8)

REVENDICATIONS 1-Dispositif d'arthrodèse vertébrale, particulièrement destiné à réaliser une arthrodèse cervicale et à être implanté par voie antérieure, comprenant au moins une cage intervertébrale (2), une pièce (4) de liaison des deux vertèbres (50) entre lesquelles la ou les cages (2) sont placées et des moyens (13,23) permettant de relier chaque cage (2) et cette pièce de liaison (4) ; dispositif (1) caractérisé en ce que : - chaque cage (2) présente une forme de révolution, et comprend une collerette proximale (11), des moyens proximaux (12) de prise, permettant l'entraînement en rotation de cette cage (2) autour de son axe, et une zone filetée (13) située à proximité de la collerette (11), sur le côté distal de celle-ci ; et - la pièce de liaison (4) présente au moins une partie annulaire taraudée (23), propre à recevoir une cage (2) à travers elle par vissage.  CLAIMS 1-Vertebral arthrodesis device, particularly intended to perform a cervical arthrodesis and to be implanted anteriorly, comprising at least one intervertebral cage (2), a part (4) connecting the two vertebrae (50) between which the or the cages (2) are placed and means (13,23) making it possible to connect each cage (2) and this connecting piece (4); device (1) characterized in that: - each cage (2) has a shape of revolution, and comprises a proximal collar (11), proximal means (12) for taking, allowing the drive in rotation of this cage (2 ) around its axis, and a threaded area (13) located near the flange (11), on the distal side thereof; and - the connecting piece (4) has at least one tapped annular part (23), suitable for receiving a cage (2) through it by screwing. 2-Dispositif selon la revendication 1, caractérisé en ce que la cage (2) comprend une ou plusieurs saillies (14) au niveau de sa paroi circonférentielle.  2-Device according to claim 1, characterized in that the cage (2) comprises one or more projections (14) at its circumferential wall. 3-Dispositif selon la revendication 2, caractérisé en ce qu'elle présente une saillie (14) ayant la forme d'un filet de pas large.  3-Device according to claim 2, characterized in that it has a projection (14) having the shape of a wide pitch thread. 4-Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que la cage (2) est creuse de manière à pouvoir recevoir un greffon et/ou des copeaux d'os spongieux dans la cavité (10) qu'elle délimite intérieurement, et en ce qu'elle est percée d'au moins un trou radial (15, 16), permettant la croissance des cellules osseuses à travers sa paroi.  4-Device according to one of claims 1 to 3, characterized in that the cage (2) is hollow so as to be able to receive a graft and / or cancellous bone chips in the cavity (10) which it delimits internally, and in that it is pierced with at least one radial hole (15, 16), allowing the growth of bone cells through its wall. 5-Dispositif selon la revendication 4, caractérisé en ce qu'il comprend un bouchon fileté (3) pouvant être vissé sur une zone proximale taraudée (17) de la paroi de la cage (2) qui délimite la cavité (10), afin de fermer cette cavité (10) sur le côté proximal de la cage (2).  5-Device according to claim 4, characterized in that it comprises a threaded plug (3) which can be screwed onto a threaded proximal area (17) of the wall of the cage (2) which delimits the cavity (10), so to close this cavity (10) on the proximal side of the cage (2). 6-Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que ladite partie annulaire (3) présente un évidement circulaire proximal (24) définissant un épaulement, et en ce que ladite collerette (11) est conformée pour pouvoir être engagée dans cet évidement (24) en fin de vissage.  6-Device according to one of claims 1 to 5, characterized in that said annular part (3) has a proximal circular recess (24) defining a shoulder, and in that said flange (11) is shaped to be able to be engaged in this recess (24) at the end of screwing. <Desc/Clms Page number 8> <Desc / Clms Page number 8> 7-Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que la pièce de liaison (4) présente au moins deux oreilles (25) faisant saillie de ses extrémités, chacune de ces oreilles (25) étant percée d'un trou (26) pour la réception d'une vis d'ancrage (5) de cette pièce de liaison (4) au corps vertébral (51) de la vertèbre (50) correspondante, et en ce que chaque oreille (25) présente des dimensions telles, et/ou est réalisée dans un matériau tel, qu'elle peut être déformée plastiquement.  7-Device according to one of claims 1 to 6, characterized in that the connecting piece (4) has at least two ears (25) projecting from its ends, each of these ears (25) being pierced with a hole (26) for receiving an anchor screw (5) of this connecting piece (4) to the vertebral body (51) of the corresponding vertebra (50), and in that each ear (25) has such dimensions, and / or is made of a material such that it can be plastically deformed. 8-Dispositif selon la revendication 7, caractérisé en ce que le trou (26) que présente au moins une oreille (26) est taraudé et en ce que la vis (5) destinée à être engagée dans ce trou présente une portion proximale filetée (31) propre à coopérer avec le taraudage du trou (26). 8-Device according to claim 7, characterized in that the hole (26) that has at least one lug (26) is tapped and in that the screw (5) intended to be engaged in this hole has a threaded proximal portion ( 31) suitable for cooperating with the thread of the hole (26).
FR0013952A 2000-10-30 2000-10-30 VERTEBRAL ARTHRODESIS DEVICE Expired - Fee Related FR2815846B1 (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2926457A1 (en) * 2008-01-17 2009-07-24 Warsaw Orthopedic Inc INTERVERTEBRAL CAGE AND VERTEBRAL FUSION DEVICE HAVING THE SAME
US8216312B2 (en) 2007-05-31 2012-07-10 Zimmer Spine, Inc. Spinal interbody system and method
US11793652B2 (en) 2017-11-21 2023-10-24 Institute for Musculoskeletal Science and Education, Ltd. Implant with improved bone contact
US11819419B2 (en) 2015-04-29 2023-11-21 Institute for Musculoskeletal Science and Education, Ltd. Implant with curved bone contacting elements
US11826261B2 (en) 2015-04-29 2023-11-28 Institute for Musculoskeletal Science and Education, Ltd. Coiled implants and systems and methods of use thereof
US11938039B2 (en) 2017-03-13 2024-03-26 Institute for Musculoskeletal Science and Education, Ltd. Implant with structural members arranged around a ring
US11951018B2 (en) 2017-11-21 2024-04-09 Institute for Musculoskeletal Science and Education, Ltd. Implant with improved flow characteristics

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8480715B2 (en) 2007-05-22 2013-07-09 Zimmer Spine, Inc. Spinal implant system and method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998048718A1 (en) * 1997-04-25 1998-11-05 Tegementa, L.L.C. Threaded fusion cage anchoring device and method
WO2000024343A1 (en) * 1998-10-28 2000-05-04 Sdgi Holdings, Inc. Anterior lateral spine cage-plate fixation device and technique

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998048718A1 (en) * 1997-04-25 1998-11-05 Tegementa, L.L.C. Threaded fusion cage anchoring device and method
WO2000024343A1 (en) * 1998-10-28 2000-05-04 Sdgi Holdings, Inc. Anterior lateral spine cage-plate fixation device and technique

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8216312B2 (en) 2007-05-31 2012-07-10 Zimmer Spine, Inc. Spinal interbody system and method
FR2926457A1 (en) * 2008-01-17 2009-07-24 Warsaw Orthopedic Inc INTERVERTEBRAL CAGE AND VERTEBRAL FUSION DEVICE HAVING THE SAME
WO2009091775A3 (en) * 2008-01-17 2009-09-11 Warsaw Orthopedic, Inc. Intervertebral cage and vertebral fusion device
CN101917937A (en) * 2008-01-17 2010-12-15 华沙整形外科股份有限公司 Intervertebral cage and vertebral fusion device
CN101917937B (en) * 2008-01-17 2014-06-25 华沙整形外科股份有限公司 Intervertebral cage and vertebral fusion device
US11819419B2 (en) 2015-04-29 2023-11-21 Institute for Musculoskeletal Science and Education, Ltd. Implant with curved bone contacting elements
US11826261B2 (en) 2015-04-29 2023-11-28 Institute for Musculoskeletal Science and Education, Ltd. Coiled implants and systems and methods of use thereof
US11938039B2 (en) 2017-03-13 2024-03-26 Institute for Musculoskeletal Science and Education, Ltd. Implant with structural members arranged around a ring
US11793652B2 (en) 2017-11-21 2023-10-24 Institute for Musculoskeletal Science and Education, Ltd. Implant with improved bone contact
US11951018B2 (en) 2017-11-21 2024-04-09 Institute for Musculoskeletal Science and Education, Ltd. Implant with improved flow characteristics

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