FR2874814A1 - Intervertebral cage, useful for implantation to relieve pain caused by damaged intervertebral disks, comprises two pieces with support surfaces that can slide relative to each other - Google Patents

Intervertebral cage, useful for implantation to relieve pain caused by damaged intervertebral disks, comprises two pieces with support surfaces that can slide relative to each other Download PDF

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Publication number
FR2874814A1
FR2874814A1 FR0409481A FR0409481A FR2874814A1 FR 2874814 A1 FR2874814 A1 FR 2874814A1 FR 0409481 A FR0409481 A FR 0409481A FR 0409481 A FR0409481 A FR 0409481A FR 2874814 A1 FR2874814 A1 FR 2874814A1
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Prior art keywords
parts
male
characterized
cage
female
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Granted
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FR0409481A
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French (fr)
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FR2874814B1 (en
Inventor
Hassan Razian
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RAZIAN Hassan
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RAZIAN Hassan
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Publication of FR2874814B1 publication Critical patent/FR2874814B1/en
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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
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455Joints 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
    • A61F2/447Joints 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 substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section
    • AHUMAN NECESSITIES
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    • 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
    • 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
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30003Material related properties of the prosthesis or of a coating on the prosthesis
    • A61F2002/30004The prosthesis made from materials having different values of a given property at different locations within the same prosthesis
    • A61F2002/30014The prosthesis made from materials having different values of a given property at different locations within the same prosthesis differing in elasticity, stiffness or compressibility
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    • 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
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    • 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
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    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30383Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove
    • A61F2002/3039Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove with possibility of relative movement of the rib within the groove
    • A61F2002/30398Sliding
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    • A61F2002/30518Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements with possibility of relative movement between the prosthetic parts
    • A61F2002/3052Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements with possibility of relative movement between the prosthetic parts unrestrained in only one direction, e.g. moving unidirectionally
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    • 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
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    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30518Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements with possibility of relative movement between the prosthetic parts
    • A61F2002/3052Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements with possibility of relative movement between the prosthetic parts unrestrained in only one direction, e.g. moving unidirectionally
    • A61F2002/30522Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements with possibility of relative movement between the prosthetic parts unrestrained in only one direction, e.g. moving unidirectionally releasable, e.g. using a releasable ratchet
    • AHUMAN NECESSITIES
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    • 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
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The 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
    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30537Special structural features of bone or joint prostheses not otherwise provided for adjustable
    • A61F2002/3055Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting length
    • 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
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The 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
    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30537Special structural features of bone or joint prostheses not otherwise provided for adjustable
    • A61F2002/3055Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting length
    • A61F2002/30551Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting length at different discrete positions, e.g. at equidistant intervals
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    • 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
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    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The 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
    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30579Special structural features of bone or joint prostheses not otherwise provided for with mechanically expandable devices, e.g. fixation devices
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Abstract

Intervertebral cage (A) comprises at least two pieces (1,2) each with a support surface (3,4), both of which contact the bony parts of two consecutive vertebrae, and a system for joining and shifting (1,2) with respect to each other. Intervertebral cage (A) comprises at least two pieces (1,2) each with a support surface (3,4), both of which contact the bony parts of two consecutive vertebrae, and a system for joining and shifting (1,2) with respect to each other. The new feature is that the joining/shifting system comprises complementary male (11) and female (12) parts of a slide, where these two parts can move relative to each other in a sliding direction (13) that is not parallel to the support surfaces. The two parts are mounted in interdependent co-operation with, respectively (1) and (2), so that (3,4) remain essentially parallel to each other as the distance (D) between (3) and (4) varies, depending on the positions of (11) and (12) during sliding.

Description

CAGE INTERVERTEBRALE INTERVERTEBRAL CAGE
La présente invention concerne les cages intervertébrales qui sont utilisées pour notamment supprimer la cause des douleurs générées par un disque intervertébral endommagé, par exemple en réalisant une distraction entre les deux vertèbres situées de part et d'autre de ce disque ou par le remplacement du disque. The present invention relates to intervertebral cages that are used to remove the particular cause of pain generated by a damaged intervertebral disc, for example by making a distraction between the two vertebrae located on either side of the disc or disc replacement .
Une cage intervertébrale est un dispositif prothétique apte à être implanté entre deux vertèbres consécutives, par exemple dans le but de remplacer le disque intervertébral endommagé situé entre ces deux vertèbres, pour constituer, dans un premier temps une entretoise entre les deux vertèbres et, dans un second temps un moyen pour favoriser l'ostéosynthèse entre ces deux vertèbres pour qu'elles ne puissent plus se déplacer l'une par rapport à l'autre. An intervertebral cage is a prosthetic device adapted to be implanted between two adjacent vertebrae, for example in order to replace the damaged intervertebral disc located between two vertebrae to form, firstly a spacer between two vertebrae and, in a Secondly a way to promote bone between two vertebrae for they can no longer move relative to one another.
On connaît déjà de tels dispositifs prothétiques intervertébraux, par exemple ceux décrits et illustrés dans les US-A-4 501 269, WO-A-89 12431 et EP-A-0 307 241. We already know of such intervertebral prosthetic devices, such as those described and illustrated in US-A-4501269, WO-A-89 12431 and EP-A-0307241.
Dans la majorité des cas, ces entretoises ne s'insèrent pas facilement et parfaitement entre deux vertèbres consécutives, en particulier, mais non exclusivement, dans le cas de deux vertèbres lombaires, par le fait notamment de la complexité de leur structure. In most cases, these braces do not fit easily and perfectly between two consecutive vertebrae, particularly, but not exclusively, in the case of two lumbar vertebrae, the fact of the complexity of their structure. Parfois même, elles ne présentent pas la fiabilité souhaitée. Sometimes, they do not have the desired reliability.
Aussi, la présente invention a-t-elle pour but de réaliser une cage intervertébrale permettant de pallier en grande partie les inconvénients mentionnés ci-dessus des cages intervertébrales connues de l'art antérieur, qui soit d'une structure très simple et donc facile à réaliser et à utiliser notamment par les Praticiens lors de sa mise en place entre deux vertèbres. Also, the present invention does it aim to achieve intervertebral cage that overcomes much of the disadvantages mentioned above of intervertebral cages known from the prior art, that is a very simple and therefore easy structure to make and use particularly by practitioners at its establishment between two vertebrae.
Plus précisément, la présente invention a pour objet une cage intervertébrale comportant au moins deux pièces comprenant chacune une face d'appui, lesdites deux faces d'appui étant aptes à venir respectivement au contact du corps osseux de deux vertèbres consécutives, et des moyens pour associer et déplacer les deux pièces l'une par rapport à l'autre, caractérisée par le fait que les moyens pour associer et déplacer les deux pièces l'une par rapport à l'autre sont constitués par au moins une partie de glissière mâle et une partie de glissière femelle complémentaire de la partie de glissière mâle de façon que ces deux parties de glissière puissent coulisser l'une par rapport à l'autre suivant une direction de glissement non parallèle aux faces d'appui,ces deux parties de glissière étant montées en coopération solidaire respectivement avec les deux pièces de façon que les deux faces d'appui demeurent sensiblement constamment parallèles entre elles et qu More specifically, the present invention relates to an intervertebral cage having at least two parts each comprising a bearing surface, said two bearing surfaces being adapted to come respectively in contact with the bone bodies of two consecutive vertebrae, and means for associating and moving the two parts relative to each other, characterized in that the means for associating and moving the two parts relative to each other are constituted by at least a portion of male track and complementary female part of the slide rail portion male so that these two parts slide can slide relative to each other in a non-parallel direction to the sliding bearing surfaces, these two parts being of rail mounted in integral cooperation respectively with the two parts so that the two bearing faces remain constantly substantially parallel to each other and that e la distance entre ces deux faces d'appui varie en fonction de la position des deux parties de glissière lors de leur glissement l'une par rapport à l'autre. e the distance between these two bearing surfaces varies depending on the position of the two parts slide when they slide relative to each other.
D'autres caractéristiques et avantages de l'invention apparaîtront au cours de la description suivante donnée en regard des dessins annexés à titre illustratif mais nullement limitatif, dans lesquels : La figure 1 représente, dans une vue en perspective cavalière et en éclaté, un mode de réalisation de la cage intervertébrale selon l'invention, Les figures 2 et 3 représentent, dans deux vues orthogonales, le mode de réalisation selon la figure 1, la figure 2 étant une vue de côté et la figure 3 une vue en coupe référencée III-III sur la figure 2, et La figure 4 représente une vue en coupe d'une partie d'un autre mode de réalisation de la cage selon l'invention, constituant un perfectionnement du mode de réalisation selon les figures 1 à 3. Other features and advantages of the invention appear from the following description given in the appended drawings by way of illustration but in no way limiting, in which: Figure 1 shows, in an isometric exploded view of a mode embodiment of the intervertebral cage according to the invention, figures 2 and 3 show, in two orthogonal views, the embodiment of Figure 1, Figure 2 being a side view and Figure 3 a sectional view III referenced -III in Figure 2, and Figure 4 shows a sectional view of a portion of another embodiment of the cage according to the invention constituting a further development of the embodiment according to figures 1 to 3.
Il est tout d'abord précisé que, sur les figures, les mêmes références désignent les mêmes éléments, quelle que soit la figure sur laquelle elles apparaissent et quelle que soit la forme de représentation de ces éléments. It is first noted that the figures, the same references designate the same elements, whatever the figure in which they appear and regardless of the form of representation of these elements. De même, si des éléments ne sont pas spécifiquement référencés sur l'une des figures, leurs références peuvent être aisément retrouvées en se reportant à une autre figure. Similarly, if elements are not specifically referenced in one of the figures, their references can easily be found by referring to another figure.
Il est aussi précisé que les figures représentent essentiellement deux modes de réalisation de l'objet selon l'invention, mais qu'il peut exister d'autres modes de réalisation qui répondent à la définition de cette invention. It is also specified that the figures mainly represent two embodiments of the object of the invention, but it may be other embodiments that fall within the definition of this invention.
Il est en outre précisé que, lorsque, selon la définition de l'invention, l'objet de l'invention comporte "au moins un" élément ayant une fonction donnée, le mode de réalisation décrit peut comporter plusieurs de ces éléments. It is further stated that, when, according to the definition of the invention, the object of the invention comprises "at least one" element having a given function, the embodiment described may include a plurality of such elements. Réciproquement, si les modes de réalisation de l'objet selon l'invention tel qu'illustrés comportent plusieurs éléments de fonction identique et si, dans la description, il n'est pas spécifié que l'objet selon cette invention doit obligatoirement comporter un nombre particulier de ces éléments, l'objet de l'invention pourra être défini comme comportant "au moins un" de ces éléments. Conversely, if the embodiments of the object of the invention as illustrated include several identical functional elements and if, in the description, it is not specified that the object of this invention must include a number especially of those factors, the subject of the invention may be defined as comprising "at least one" of these elements.
Il est enfin précisé que lorsque, dans la présente description, une expression définit à elle seule, sans mention particulière spécifique la concernant, un ensemble de caractéristiques structurelles, [par exemple = ( , , s, ...)], ces caractéristiques peuvent être prises, pour la définition de l'objet de la protection demandée, quand cela est techniquement possible, soit séparément, [par exemples, et/ou , et/ou p, ...], soit en combinaison totale et/ou partielle, [par exemple ( s, , p), et/ou ( , ), et/ou ( , p), et/ou E( s, p)]. Finally, it is specified that when, in the present description, an expression defines itself without specific special mention concerning a set of structural characteristics [eg = (,, s, ...)], these features can be taken for the definition of the object of the protection sought, whenever technically possible, either separately [for example, and / or, and / or p ...] or in combination complete and / or partial [for example (s, p) and / or (,), and / or (p) and / or E (s, p)].
Les figures 1 à 3 représentent un premier mode de réalisation d'une cage intervertébrale comportant deux pièces 1, 2 comprenant chacune une face d'appui 3, 4, ces deux faces d'appui 3, 4 étant aptes à venir respectivement au contact du corps osseux de deux vertèbres consécutives. Figures 1 to 3 show a first embodiment of an intervertebral cage comprising two parts 1, 2 each comprising a support surface 3, 4, these two supporting surfaces 3, 4 being adapted to engage the respectively bone bodies of two consecutive vertebrae. La cage comporte en outre des moyens pour associer et déplacer les deux pièces l'une par rapport à l'autre. The cage further comprises means for associating and moving the two parts relative to each other.
Selon une caractéristique de l'invention, les moyens pour associer et déplacer les deux pièces l'une par rapport à l'autre sont constitués par au moins une partie de glissière mâle 11 et une partie de glissière femelle 12 complémentaire de la partie de glissière mâle 11 de façon que ces deux parties de glissière puissent coulisser l'une par rapport à l'autre suivant une direction de glissement 13 non parallèle aux faces d'appui 3, 4. According to one characteristic of the invention, the means for associating and moving the two parts relative to each other are constituted by at least one male track portion 11 and a portion of complementary female 12 slide the slider portion male 11 so that these two parts slide can slide relative to each other along a sliding direction 13 is not parallel to the support surfaces 3, 4.
Ces deux parties de glissière sont montées en coopération solidaire respectivement avec les deux pièces 1, 2 de façon que les deux faces d'appui 3, 4 demeurent sensiblement constamment parallèles entre elles et que la distance D, figure 2, entre ces deux faces d'appui varie en fonction de la position des deux parties de glissière 11, 12 lors de leur glissement l'une par rapport à l'autre. These two parts slide are mounted with the two parts respectively integral cooperation 1, 2 so that the two supporting surfaces 3, 4 remain constantly substantially parallel to each other and that the distance D 2 between both sides of support varies depending on the position of the two parts of slide 11, 12 when they slide relative to each other.
Selon une réalisation préférentielle comme celle illustrée sur ces figures 1 à 3, l'une 1 des deux pièces 1, 2 comporte en outre au moins une première portion mâle 21 et l'autre pièce 2 comporte une seconde portion femelle 22 complémentaire de la première portion mâle, de façon que ces deux portions mâle et femelle coulissent l'une dans l'autre suivant la direction de glissement 13 définie ci-dessus, à la façon d'un tiroir ou analogue. In a preferred embodiment like that shown in these figures 1 to 3, to one of the two parts 1, 2 further comprises at least a first male portion 21 and the other part 2 has a second female portion 22 complementary to the first male portion, so that these two male and female portions slide one inside the other along the sliding direction 13 defined above, in the manner of a drawer or the like. Dans ce cas, les deux parties de glissière mâle et femelle 11, 12 sont respectivement solidaires des deux portions mâle et femelle. In this case, both sides of slide male and female 11, 12 are respectively integral with the two male and female portions.
En outre, de façon préférentielle, pour obtenir une bonne stabilité des deux pièces 1, 2 lors de leur déplacement relatif, il est avantageux, comme illustré sur les figures, que la partie de glissière mâle 11 soit constituée par deux languettes cylindriques 31, 32 situées symétriquement de part et d'autre de l'une 21 des deux portions mâle et femelle 21, 22, et que la partie de glissière femelle 12 soit constituée par deux rainures 33, 34 complémentaires des languettes 31, 32 et réalisées dans l'autre portion 22. In addition, preferably, to obtain a good stability of the two parts 1, 2 during their relative displacement, it is advantageous, as shown in the figures, the male track part 11 is constituted by two cylindrical lugs 31, 32 located symmetrically on either side of one 21 of the two male and female portions 21, 22, and that the slide part female 12 is constituted by two grooves 33, 34 complementary to the tabs 31, 32 and carried in the another portion 22.
Dans l'exemple de réalisation illustré, les deux languettes cylindriques 31, 32 sont réalisées sur la portion mâle de la pièce 1, tandis que les deux rainures 33, 34 sont réalisées sur la portion femelle de la pièce 2. Mais il est bien évident que la réalisation inverse est possible. In the exemplary embodiment illustrated, the two cylindrical lugs 31, 32 are provided on the male portion of the workpiece 1, while the two grooves 33, 34 are formed on the female portion of the part 2. However, it is obvious the reverse embodiment is possible.
Cependant, dans un mode de réalisation perfectionné comme illustré sur la figure 4, il est très avantageux, pour sécuriser encore plus l'implantation de la cage, que la cage comporte en outre des moyens de crémaillère 40 associés aux deux pièces 1, 2, ces moyens de crémaillère étant agencés pour autoriser le glissement des deux parties de glissière 11, 12 l'une par rapport à l'autre dans le sens de l'augmentation de la distance D entre les deux faces d'appui 3, 4 et empêcher tout glissement dans l'autre sens. However, in an improved embodiment as shown in Figure 4, it is highly advantageous for even more secure implantation of the cage, that the cage further comprises means of rack 40 associated with the two parts 1, 2, these rack means being arranged to allow the sliding of the two parts of slide 11, 12 relative to each other in the direction of increasing the distance D between the two supporting surfaces 3, 4 and prevent slippage in the other direction.
Selon une réalisation préférentielle, ces moyens de crémaillère 40 sont constitués par au moins deux systèmes de dents à rochets complémentaires 41, 42, c'est-à-dire essentiellement formés de dents en biseau ou "de scie" comme illustré sur la figure 4, chaque dent 47 étant délimitée par un flan à faible pente 48 d'un côté et par un flan à pente raide 49 de l'autre. In a preferred embodiment, the rack means 40 are constituted by at least two tooth systems complementary ratchets 41, 42, that is to say essentially formed teeth bevelled or "saw" as illustrated in FIG 4 , each tooth 47 being defined by a gently sloping flank 48 on one side and a steep flank 49 of the other.
Cette structure de dents permet le déplacement des deux pièces 1, 2 l'une par rapport à l'autre, par référence à la figure 4, dans les mouvements relatifs indiqués par les flèches référencées 43-44, et empêche les mouvements relatifs opposés indiqués par les flèches 45- 46. This structure allows the displacement of teeth of the two parts 1, 2 relative to each other, by reference to Figure 4, the relative movements indicated by the arrows referenced 43-44, and prevents relative movements indicated opposite by the arrows 45- 46.
Selon ce mode de réalisation, les dents en biseau peuvent glisser l'une sur l'autre par leurs flans inclinés 48 à pente faible ou peu prononcée par rapport à la direction de glissement 13, dans le cas des mouvements relatifs 43-44, en entraînant, selon la nature du matériau les constituant, soit une légère déformation par écrasement des dents 47, soit, plus généralement, un léger soulèvement des deux pièces 1, 2. En revanche, les mouvements relatifs 45-46 sont rendus impossibles par le contact des flans à pente raide 49. According to this embodiment, the bevel teeth can slide over each other by their inclined flanks 48 gently sloping or very pronounced compared to the sliding direction 13, in the case of relative movements 43-44, in causing, according to the nature of the constituting material, a slight deformation by crushing teeth 47 or, more generally, a slight lifting of the two parts 1, 2. In contrast, 45-46 relative movements are made impossible by the contact blanks to steep 49.
Il est cependant bien précisé que, sur la figure 4, essentiellement la hauteur des dents 47 a été fortement exagérée par rapport aux dimensions des deux pièces 1 et 2, uniquement pour faire ressortir la structure de ces dents 47 et leur coopération. However, it is quite clear that, in Figure 4, essentially the height of the teeth 47 has been greatly exaggerated relative to the dimensions of the two parts 1 and 2, only to bring out the structure of the teeth 47 and their cooperation.
Il est aussi souligné que les deux systèmes de dents à rochets complémentaires 41, 42 peuvent être respectivement réalisés sur au moins deux des éléments suivants : les deux portions mâle et femelle, les deux parties de glissière mâle et femelle. It is also noted that the two systems of teeth with complementary ratchets 41, 42 can be respectively made on at least two of the following elements: two male and female portions, the two parts of the male and female slideway.
Dans une réalisation avantageuse, ces deux systèmes de dents à rochets complémentaires 41, 42 sont réalisés, contrairement au mode de réalisation illustré sur la figure 4, dans un plan perpendiculaire au plan des deux faces d'appui 3, 4. Dans ce cas, au passage de chaque dent l'une sur l'autre, les deux pièces 1, 2 ne subissent pas de déplacements oscillatoires selon une direction perpendiculaire aux deux faces des corps vertébraux ou aux deux faces d'appui 3 et 4, mais suivant une direction parallèle au plan des faces d'appui 3, 4. La distance entre les deux corps vertébraux varie ainsi de façon continue. In an advantageous embodiment, the two tooth systems complementary ratchets 41, 42 are formed, unlike the embodiment illustrated in Figure 4, in a plane perpendicular to the plane of the two supporting surfaces 3, 4. In this case, the passage of each tooth on one another, the two parts 1, 2 are not subjected to oscillatory movements in a direction perpendicular to the two faces of the vertebral bodies or both sides of support 3 and 4, but in a direction parallel to the plane of the support surfaces 3, 4. the distance between the two vertebral bodies thus varies continuously.
Par référence à la figure 3, ces deux systèmes de dents à rochets peuvent par exemple être réalisés sur les faces en regard correspondant respectivement au sommet des languettes cylindriques 31, 32 et au fond des deux rainures 33, 34. Referring to Figure 3, the two ratchet teeth systems can for example be carried out on opposite faces corresponding respectively to the top of cylindrical lugs 31, 32 and the bottom of the two grooves 33, 34.
Dans une réalisation qui peut être avantageuse dans certains cas d'applications, les deux parties de glissière mâle et femelle 11, 12 sont respectivement réalisées dans deux matériaux présentant un module d'élasticité différent. In one embodiment which may be advantageous in some cases of application, the two parts of the male and female slide 11, 12 are respectively made in two materials having a different modulus of elasticity.
Dans ce cas notamment, il est avantageux pour la réalisation industrielle de la cage intervertébrale, que chaque ensemble constitué d'une pièce 1, 2 et de la partie de glissière 11, 12 avec laquelle elle est montée en coopération solidaire, soit monobloc, l'un des deux ensembles monoblocs étant en un matériau métallique et l'autre en un matériau plastique synthétique. In this case in particular, it is advantageous for the industrial embodiment of the intervertebral cage, that each set consists of a part 1, 2 and the slider portion 11, 12 with which it is mounted in integral cooperation or monobloc, the one of the two-piece assemblies being of a metallic material and the other in a synthetic plastics material.
Par exemple, le matériau métallique peut être du titane ou un alliage de titane comme celui qui est couramment utilisé pour la réalisation de prothèses connues, comme les prothèses de hanche ou analogues, et le matériau plastique synthétique peut être du poly-éther-éther-cétone connu des techniciens sous la dénomination "PEEK", ou tout matériau analogue. For example, the metallic material may be titanium or a titanium alloy such as that commonly used for the production of known prostheses such as hip prostheses or the like, and the synthetic plastic material may be poly-ether-ether ketone experienced technicians under the name "PEEK", or similar material.
Quand l'un des deux ensembles est en un matériau métallique comme du titane ou analogue, il est possible de contrôler l'implantation de la cage par radiographie car ce matériau est radio opaque. When one of the two sets is of a metallic material such as titanium or the like, it is possible to control the implantation of the cage by radiography since this material is radiopaque.
Quand les deux ensembles sont tous les deux en un matériau plastique ou analogue, au moins l'un d'eux peut comporter, par exemple, deux broches en un matériau radio opaque pour permettre le contrôle, par radiographie, de l'implantation de la cage entre les deux vertèbres. When the two assemblies are both of a plastic or similar material, at least one of them may include, for example, two pins in a radio-opaque material to allow monitoring, by radiography, the introduction of cage between two vertebrae.
Enfin, comme pour les cages intervertébrales de l'art antérieur, il est préférable qu'au moins l'une des deux pièces 1, 2, et avantageusement les deux, comporte un logement 50 débouchant sur sa face d'appui 3, 4, de façon que ce logement soit apte à contenir un greffon osseux pour favoriser l'ostéosynthèse entre les deux corps vertébraux entre lesquels a été implantée la cage. Finally, as the intervertebral cages of the prior art, it is preferable that at least one of the two parts 1, 2, and preferably both, comprises a recess 50 opening on its bearing face 3, 4, such that said housing is adapted to contain a bone graft to promote osteosynthesis between the two vertebral bodies between which the cage has been implanted.
A la description faite ci-dessus et compte tenu de la parfaite connaissance, de la part des Praticiens, des cages de l'art antérieur et de la pratique de leur pose, il apparaît à l'évidence qu'il n'est pas nécessaire de décrire ici le mode d'utilisation de la cage selon l'invention. In the description above, and given the perfect knowledge on the part of practitioners, cages of the prior art and practice their poses, it is evident that it is not necessary describe here the use of cage mode of the invention.
Il est simplement important de souligner le fait que la structure de la cage selon l'invention facilite largement le déplacement des deux pièces 1, 2 qui sont au contact, par leur faces d'appui respectives 3, 4, des corps vertébraux des deux vertèbres consécutives, pour permettre au Praticien d'adapter la distance D à l'écartement souhaité pour réaliser le soin désiré. It is merely important to emphasize that the structure of the cage according to the invention greatly facilitates the displacement of the two parts 1, 2 which are in contact through their respective support surfaces 3, 4, the vertebral bodies of the two vertebrae consecutive to allow the practitioner to adapt the distance D to the desired spacing to achieve the desired care.
Le déplacement relatif suivant les flèches 43, 44 des deux pièces 1, 2 peut être effectué par tout moyen, notamment par exemple à l'aide d'une pince d'ancillaire dont les deux branches de pincement prennent appui sur les deux faces des deux pièces 1, 2 qui sont sensiblement perpendiculaires aux deux faces d'appui 3, 4 définies ci-dessus. The relative movement along the arrows 43, 44 of the two parts 1, 2 can be done by any means, including for example using an ancillary pliers with two clamping legs are supported on the two faces of the two parts 1, 2 which are substantially perpendicular to the two supporting surfaces 3, 4 defined above.

REVENDICATIONS
1. Cage intervertébrale comportant au moins deux pièces (1, 2) comprenant chacune une face d'appui (3, 4), lesdites deux faces d'appui (3, 4) étant aptes à venir respectivement au contact du corps osseux de deux vertèbres consécutives, et des moyens pour associer et déplacer les deux pièces l'une par rapport à l'autre;caractérisée par le fait que les moyens pour associer et déplacer les deux pièces l'une par rapport à l'autre sont constitués par au moins une partie de glissière mâle (11) et une partie de glissière femelle (12) complémentaire de la partie de glissière mâle (11) de façon que ces deux parties de glissière puissent coulisser l'une par rapport à l'autre suivant une direction de glissement (13) non parallèle aux faces d'appui, ces deux parties de glissière étant montées en coopération solidaire respectivement avec les deux pièces (1, 2) de façon que les deux faces d'appui (3, 4) demeurent sensiblement constamment parallèles entre elles et que 1. intervertebral cage having at least two parts (1, 2) each comprising a bearing face (3, 4), said two bearing faces (3, 4) being suitable for engaging the bone of two bodies respectively consecutive vertebrae, and means for associating and moving the two parts relative to each other; characterized in that the means for associating and moving the two parts relative to each other are formed by at least a portion of male track (11) and a portion of female track (12) complementary to the male part of rail (11) so that these two parts slide can slide relative to each other along a direction slip (13) not parallel to the bearing surfaces, these two parts being mounted to slide integral cooperation with two parts respectively (1, 2) so that the two bearing faces (3, 4) remains substantially constant parallel to each other and that la distance (D) entre ces deux faces d'appui varie en fonction de la position des deux parties de glissière (11, 12) lors de leur glissement l'une par rapport à l'autre. the distance (D) between these two bearing surfaces varies depending on the position of the two parts of rail (11, 12) when they slide relative to each other.

Claims (6)

  1. 2. Cage intervertébrale selon la revendication 1, caractérisée par le fait que l'une (1) des deux pièces (1, 2) comporte un première portion mâle (21) et que l'autre pièce (2) comporte une seconde portion femelle (22) complémentaire de la première portion mâle, de façon que les deux dites portions coulissent l'une dans l'autre suivant ladite direction de glissement (13), les deux parties de glissière mâle et femelle étant respectivement solidaires des deux dites portions mâle et femelle. 2. intervertebral cage according to claim 1, characterized in that one (1) of the two parts (1, 2) comprises a first male portion (21) and the other part (2) has a second female portion (22) complementary to the first male portion, so that said two portions sliding one in the other along said sliding direction (13), the two parts of the male and female slide being integral respectively of said two male portions and female.
    3. Cage intervertébrale selon l'une des revendications 1 et 2, caractérisée par le fait que la partie de glissière mâle (11) est constituée par deux languettes 3. Cage prosthesis according to one of claims 1 and 2, characterized in that the portion of male track (11) is constituted by two tongues
    (31, 32) situées symétriquement de part et d'autre de l'une (21) des deux portions mâle et femelle (21, 22), et que la partie de glissière femelle (12) est constituée par deux rainures (33, 34) complémentaires des languettes (31, 32) et réalisées dans l'autre (22) des deux portions mâle et femelle (21, 22). (31, 32) located symmetrically on either side of one (21) of the two male and female portions (21, 22), and the female slide portion (12) is constituted by two grooves (33, 34) complementary to the tabs (31, 32) and performed in the other (22) of the two male and female portions (21, 22).
    4. Cage intervertébrale selon l'une des revendications précédentes, caractérisée par le fait qu'elle comporte des moyens de crémaillère (40) associés aux deux pièces (1, 2), lesdits moyens de crémaillère étant agencés pour autoriser le glissement des deux parties de glissière l'une par rapport à l'autre dans le sens de l'augmentation de ladite distance (D) entre les deux faces d'appui 4. Cage prosthesis according to one of the preceding claims, characterized in that it comprises means of rack (40) associated with the two parts (1, 2), said rack means being arranged to allow the sliding of the two parts slide relative to each other in the direction of increasing said distance (D) between the two bearing faces
    (3, 4) et empêcher ce dit glissement dans l'autre sens. (3, 4) and prevent the said sliding in the other direction.
  2. 5. Cage intervertébrale selon la revendication 4, caractérisée par le fait que les moyens de crémaillère (40) sont constitués par au moins deux systèmes (41, 5. intervertebral cage according to claim 4, characterized in that the rack means (40) are constituted by at least two systems (41,
    42) de dents à rochets complémentaires. 42) of teeth with complementary ratchets.
    6. Cage intervertébrale selon la revendication 5, caractérisée par le fait que les deux dits systèmes de dents à rochets complémentaires sont respectivement réalisés sur au moins deux des éléments suivants : les deux portions mâle et femelle, les deux parties de glissière mâle et femelle. 6. intervertebral cage according to claim 5, characterized in that both said complementary ratchet teeth systems are respectively formed on at least two of the following elements: two male and female portions, the two parts of the male and female slideway.
  3. 7. Cage intervertébrale selon l'une des revendications précédentes, caractérisée par le fait que les deux parties de glissière (11, 12) sont respectivement réalisées dans deux matériaux présentant un module d'élasticité différent. 7. Cage prosthesis according to one of the preceding claims, characterized in that the two parts of rail (11, 12) are respectively made in two materials having a different modulus of elasticity.
  4. 8. Cage intervertébrale selon la revendication 7, caractérisée par le fait que chaque ensemble constitué d'une pièce (1, 2) et de la partie de glissière (11, 12) avec laquelle elle est montée en coopération solidaire, est monobloc. 8. intervertebral cage according to claim 7, characterized in that each set consists of a part (1, 2) and the slider portion (11, 12) with which it is mounted in integral cooperation is monobloc.
    9. Cage intervertébrale selon la revendication 8, caractérisée par le fait que l'un des deux ensembles monoblocs est en un matériau métallique et l'autre en un matériau plastique synthétique. 9. Cage prosthesis according to claim 8, characterized in that one of the two-piece assemblies is a metallic material and one of a synthetic plastics material.
  5. 10. Cage intervertébrale selon la revendication 9, caractérisée par le fait que le matériau métallique est du titane et que le matériau plastique synthétique est du poly-éther-éther-cétone dit "PEEK". 10. intervertebral cage according to claim 9, characterized in that the metallic material is titanium and the synthetic plastics material is poly ether ether ketone said "PEEK".
  6. 11. Cage intervertébrale selon l'une des revendications précédentes, caractérisée par le fait qu'au moins l'une des deux pièces (1, 2) comporte un logement (50) débouchant sur sa face d'appui (3, 4), ledit logement étant apte à contenir un greffon osseux. 11. Cage prosthesis according to one of the preceding claims, characterized in that at least one of the two parts (1, 2) comprises a housing (50) opening on its bearing face (3, 4) said housing being adapted to contain a bone graft.
FR0409481A 2004-09-08 2004-09-08 intervertebral cage Expired - Fee Related FR2874814B1 (en)

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Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2347735A1 (en) * 2010-01-25 2011-07-27 Stout Medical Group LP Fixation device and method
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WO2012004580A1 (en) * 2010-07-07 2012-01-12 Depuy (Ireland) A surgical instrument
EP2645965A1 (en) * 2010-11-30 2013-10-09 DePuy Synthes Products LLC Lateral spondylolisthesis reduction cage
US8574300B2 (en) 2008-03-07 2013-11-05 DePuy Synthes Products, LLC Expandable interbody spacer device
EP2833812A4 (en) * 2012-04-05 2015-12-09 Globus Medical Inc Expandable fusion device and method of installation thereof
US9456903B2 (en) 2010-06-25 2016-10-04 Globus Medical Inc. Expandable fusion device and method of installation thereof
US9597200B2 (en) 2010-06-25 2017-03-21 Globus Medical, Inc Expandable fusion device and method of installation thereof
US9700425B1 (en) 2011-03-20 2017-07-11 Nuvasive, Inc. Vertebral body replacement and insertion methods
US9717601B2 (en) 2013-02-28 2017-08-01 DePuy Synthes Products, Inc. Expandable intervertebral implant, system, kit and method
US9724207B2 (en) 2003-02-14 2017-08-08 DePuy Synthes Products, Inc. In-situ formed intervertebral fusion device and method
US9750552B2 (en) 2009-07-06 2017-09-05 DePuy Synthes Products, Inc. Expandable fixation assemblies
US9788971B1 (en) 2013-05-22 2017-10-17 Nuvasive, Inc. Expandable fusion implant and related methods
US9801640B2 (en) 2010-06-24 2017-10-31 DePuy Synthes Products, Inc. Lateral spondylolisthesis reduction cage
US9801734B1 (en) 2013-08-09 2017-10-31 Nuvasive, Inc. Lordotic expandable interbody implant
US9833334B2 (en) 2010-06-24 2017-12-05 DePuy Synthes Products, Inc. Enhanced cage insertion assembly
US9839530B2 (en) 2007-06-26 2017-12-12 DePuy Synthes Products, Inc. Highly lordosed fusion cage
US9913727B2 (en) 2015-07-02 2018-03-13 Medos International Sarl Expandable implant
US9931224B2 (en) 2009-11-05 2018-04-03 DePuy Synthes Products, Inc. Self-pivoting spinal implant and associated instrumentation
US9931223B2 (en) 2008-04-05 2018-04-03 DePuy Synthes Products, Inc. Expandable intervertebral implant
US9949769B2 (en) 2004-03-06 2018-04-24 DePuy Synthes Products, Inc. Dynamized interspinal implant
US10058433B2 (en) 2012-07-26 2018-08-28 DePuy Synthes Products, Inc. Expandable implant
US10195053B2 (en) 2009-09-18 2019-02-05 Spinal Surgical Strategies, Llc Bone graft delivery system and method for using same
US10238500B2 (en) 2002-06-27 2019-03-26 DePuy Synthes Products, Inc. Intervertebral disc
US10245159B1 (en) 2009-09-18 2019-04-02 Spinal Surgical Strategies, Llc Bone graft delivery system and method for using same
US10376372B2 (en) 2017-11-29 2019-08-13 DePuy Synthes Products, Inc. In-situ formed intervertebral fusion device and method

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006034436A2 (en) 2004-09-21 2006-03-30 Stout Medical Group, L.P. Expandable support device and method of use
EP2471493A1 (en) 2008-01-17 2012-07-04 Synthes GmbH An expandable intervertebral implant and associated method of manufacturing the same
US9526620B2 (en) 2009-03-30 2016-12-27 DePuy Synthes Products, Inc. Zero profile spinal fusion cage
US8535380B2 (en) 2010-05-13 2013-09-17 Stout Medical Group, L.P. Fixation device and method
US9149286B1 (en) 2010-11-12 2015-10-06 Flexmedex, LLC Guidance tool and method for use
EP2747682A4 (en) 2011-08-23 2015-01-21 Flexmedex Llc Tissue removal device and method
US9226764B2 (en) 2012-03-06 2016-01-05 DePuy Synthes Products, Inc. Conformable soft tissue removal instruments
US10022245B2 (en) 2012-12-17 2018-07-17 DePuy Synthes Products, Inc. Polyaxial articulating instrument

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2730158A1 (en) * 1995-02-06 1996-08-09 Jbs Sa Device for holding a normal spacing between the vertebrae and for the replacement of missing vertebrae
US5865848A (en) * 1997-09-12 1999-02-02 Artifex, Ltd. Dynamic intervertebral spacer and method of use
WO2002009626A1 (en) * 1999-07-26 2002-02-07 Advanced Prosthetic Technologies, Inc. Improved spinal surgical prosthesis
US6562074B2 (en) * 2001-10-17 2003-05-13 Medicinelodge, Inc. Adjustable bone fusion implant and method
WO2004073563A2 (en) * 2003-02-14 2004-09-02 Depuy Spine, Inc. In-situ formed intervertebral fusion device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2730158A1 (en) * 1995-02-06 1996-08-09 Jbs Sa Device for holding a normal spacing between the vertebrae and for the replacement of missing vertebrae
US5865848A (en) * 1997-09-12 1999-02-02 Artifex, Ltd. Dynamic intervertebral spacer and method of use
WO2002009626A1 (en) * 1999-07-26 2002-02-07 Advanced Prosthetic Technologies, Inc. Improved spinal surgical prosthesis
US6562074B2 (en) * 2001-10-17 2003-05-13 Medicinelodge, Inc. Adjustable bone fusion implant and method
WO2004073563A2 (en) * 2003-02-14 2004-09-02 Depuy Spine, Inc. In-situ formed intervertebral fusion device

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US10238500B2 (en) 2002-06-27 2019-03-26 DePuy Synthes Products, Inc. Intervertebral disc
US9925060B2 (en) 2003-02-14 2018-03-27 DePuy Synthes Products, Inc. In-situ formed intervertebral fusion device and method
US9724207B2 (en) 2003-02-14 2017-08-08 DePuy Synthes Products, Inc. In-situ formed intervertebral fusion device and method
US9801729B2 (en) 2003-02-14 2017-10-31 DePuy Synthes Products, Inc. In-situ formed intervertebral fusion device and method
US9808351B2 (en) 2003-02-14 2017-11-07 DePuy Synthes Products, Inc. In-situ formed intervertebral fusion device and method
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US9814589B2 (en) 2003-02-14 2017-11-14 DePuy Synthes Products, Inc. In-situ formed intervertebral fusion device and method
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US9788963B2 (en) 2003-02-14 2017-10-17 DePuy Synthes Products, Inc. In-situ formed intervertebral fusion device and method
US9949769B2 (en) 2004-03-06 2018-04-24 DePuy Synthes Products, Inc. Dynamized interspinal implant
US9839530B2 (en) 2007-06-26 2017-12-12 DePuy Synthes Products, Inc. Highly lordosed fusion cage
US9844445B2 (en) 2008-03-07 2017-12-19 DePuy Synthes Products, Inc. Expandable interbody spacer device
US9149364B2 (en) 2008-03-07 2015-10-06 DePuy Synthes Products, Inc. Expandable interbody spacer device
US8574300B2 (en) 2008-03-07 2013-11-05 DePuy Synthes Products, LLC Expandable interbody spacer device
US9931223B2 (en) 2008-04-05 2018-04-03 DePuy Synthes Products, Inc. Expandable intervertebral implant
US9750552B2 (en) 2009-07-06 2017-09-05 DePuy Synthes Products, Inc. Expandable fixation assemblies
US10245159B1 (en) 2009-09-18 2019-04-02 Spinal Surgical Strategies, Llc Bone graft delivery system and method for using same
US10195053B2 (en) 2009-09-18 2019-02-05 Spinal Surgical Strategies, Llc Bone graft delivery system and method for using same
US9931224B2 (en) 2009-11-05 2018-04-03 DePuy Synthes Products, Inc. Self-pivoting spinal implant and associated instrumentation
US10195049B2 (en) 2009-11-05 2019-02-05 DePuy Synthes Products, Inc. Self-pivoting spinal implant and associated instrumentation
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US9907560B2 (en) 2010-06-24 2018-03-06 DePuy Synthes Products, Inc. Flexible vertebral body shavers
US9895236B2 (en) 2010-06-24 2018-02-20 DePuy Synthes Products, Inc. Enhanced cage insertion assembly
US10052213B2 (en) 2010-06-25 2018-08-21 Globus Medical, Inc. Expandable fusion device and method of installation thereof
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US9848997B2 (en) 2010-06-25 2017-12-26 Globus Medical, Inc. Expandable fusion device and method of installation thereof
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US9320615B2 (en) 2010-06-29 2016-04-26 DePuy Synthes Products, Inc. Distractible intervertebral implant
US9579215B2 (en) 2010-06-29 2017-02-28 DePuy Synthes Products, Inc. Distractible intervertebral implant
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EP2645965A4 (en) * 2010-11-30 2014-07-09 Depuy Synthes Products Llc Lateral spondylolisthesis reduction cage
EP2645965A1 (en) * 2010-11-30 2013-10-09 DePuy Synthes Products LLC Lateral spondylolisthesis reduction cage
US9700425B1 (en) 2011-03-20 2017-07-11 Nuvasive, Inc. Vertebral body replacement and insertion methods
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US10058433B2 (en) 2012-07-26 2018-08-28 DePuy Synthes Products, Inc. Expandable implant
US9717601B2 (en) 2013-02-28 2017-08-01 DePuy Synthes Products, Inc. Expandable intervertebral implant, system, kit and method
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