FR2624720A1 - Implant for osteosynthesis device, in particular for the spine - Google Patents

Implant for osteosynthesis device, in particular for the spine Download PDF

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Publication number
FR2624720A1
FR2624720A1 FR8717852A FR8717852A FR2624720A1 FR 2624720 A1 FR2624720 A1 FR 2624720A1 FR 8717852 A FR8717852 A FR 8717852A FR 8717852 A FR8717852 A FR 8717852A FR 2624720 A1 FR2624720 A1 FR 2624720A1
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Prior art keywords
body
cap
rod
screw
implant
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Granted
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FR8717852A
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French (fr)
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FR2624720B1 (en
Inventor
Yves Cotrel
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Ste de Fabrication de Material Orthopedique en Abrege Sofamor SNC
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Ste de Fabrication de Material Orthopedique en Abrege Sofamor SNC
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7049Connectors, not bearing on the vertebrae, for linking longitudinal elements together
    • A61B17/7052Connectors, not bearing on the vertebrae, for linking longitudinal elements together of variable angle or length
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7032Screws or hooks with U-shaped head or back through which longitudinal rods pass
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B35/00Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/06Specially-shaped heads
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7002Longitudinal elements, e.g. rods

Abstract

This implant comprises a part 1 intended for bone anchoring, and a body 2 for fastening on to a rod 3, having a channel 6 emerging on the posterior part of the said body, delimited by two lateral branches 8 and open on either side of the body in order to receive the rod 3; the implant comprises a tapped cap 9, adapted to be able to be screwed on to a thread 12 of the lateral branches 8 in order to lock the rod 3 in translation and in rotation, and a locking screw 13 which can be screwed into an internal boss 15 of the cap 9 with its tip 13a driven into the rod 3. This arrangement considerably simplifies the instrumentation necessary, since all the implants used are of the type with posterior opening, by virtue of the cap fixed on to the posterior end. <IMAGE>

Description

La présente invention a pour objet un implant pour dispositif d'ostéosynthèse, notamment du rachis, du type comprenant une partie destinée à l'ancrage osseux et un corps de fixation sur une tige, dans lequel est ménagé un canal débouchant sur une partie postérieure dudit corps et délimitant deux branches latérales. The present invention relates to an implant for an osteosynthesis device, particularly for the spine, of the type comprising a part intended for osseous anchoring and a mounting body on a rod, in which is formed a channel leading to a posterior portion of said body and defining two lateral branches.

La partie d'ancrage osseux peut être par exemple une vis ou une lame convenablement réalisée. The bone anchoring portion may be for example a screw or a suitably formed blade.

Les corps des implants connus sont, soit fermés, soit ouverts postérieurement, soit ouverts latéralement. The bodies of the known implants are either closed or open posteriorly or laterally open.

Ces implants présentent les inconvénients suivants : These implants have the following disadvantages:
- le nombre d'éléments nécessaires pour l'instrumentation est très élevé, en raison de l'existence de trois types différents de corps; - the number of elements necessary for the instrumentation is very high, due to the existence of three different types of body;
- les corps ouverts postérieurement entre nent l'obligation d'utiliser des bloqueurs intracanalaires, comme décrit par exemple dans le brevet français 2 545 350 (83 07 450), constituant des éléments d'instrumentation supplémentaires qui doivent être placés au préalable sur la tige.; - the body between open subsequently NENT the mandatory use of intracanal blockers, as described for example in French Patent 2 545 350 (83 07 450), constituting additional instrumentation elements to be placed in advance on the rod .
- il est relativement difficile d'introduire la tige dans les implants à corps fermés; - it is relatively difficult to introduce the rod into the closed body implants;
- les implants à corps ouverts doivent être orientés de manière précise, ce qui constitue une sujétion gênante pour le praticien dans le cas de l'utilisation de vis;; - open body implants must be oriented precisely, which is a troublesome subjection to the practitioner in the case of the use of screws ;;
- la multiplicité et la complexité des élélents utilisés nécessitent la mise en oeuvre d'un matériel ancillaire important; - the multiplicity and complexity of élélents used require the implementation of an important ancillary equipment;
- la fabrication des éléments de ces implants est difficile et onéreuse, et leur ablation également difficile, en raison notamment de l'obligation d'exécuter des coupes. - manufacture elements of these implants is difficult and expensive, and also difficult ablation, particularly because of the obligation to perform the cuts.

L'invention a pour but de proposer un implant exempt de ces inconvénients. The invention aims to provide an implant free of these drawbacks.

Conformément à l'invention, le corps de l'implant présente un canal débouchant sur une partie postérieure dudit corps, délimitant deux branches latérales et ouvert de part et d'autre du corps pour pouvoir recevoir la tige, et l'implant comprend d'une part un capuchon taraudé, adapté pour pouvoir être vissé sur un filetage formé sur les branches latérales constituant l'extrémité postérieure du corps en fermant le canal de ce côté, et pour que ses deux bords diamétralement opposés prennent appui sur la tige, et d'autre part une vis pointeau pouvant être vissée dans un trou taraudé correspondant ménagé dans le capuchon de façon que sa pointe pénètre dans la tige, laquelle est ainsi bloquée en translation et en rotation par les deux bords du capuchon et par la vis. According to the invention, the implant body has a channel opening onto a rear portion of said body, defining two lateral branches and open on either side of the body in order to receive the rod, and the implant comprises of firstly a threaded cap adapted to be screwed onto a thread formed on the side arms constituting the rear end of the body closing this side channel, and that two diametrically opposite edges bear against the rod, and secondly a set screw can be screwed into a corresponding threaded hole formed in the cap so that its tip enters the rod, which is thus locked in translation and in rotation by the two edges of the cap and the screw.

La mise en oeuvre de ce capuchon permet de ramener à un seul le type de corps nécessaire, à savoir un corps ouvert postérieurement, ce qui réduit considérablement le nombre d'éléments nécessaires pour le dispositif d'ostéosynthèse, en supprimant par exemple les bloqueurs intracanalaires de la technique antérieure rappelée ci-dessus. The implementation of the cap allows to reduce to a single type of necessary body, namely an open body subsequently, significantly reduces the number of components necessary for the osteosynthesis device, for example by deleting intraductal blockers the prior art referred to above.

La vis pointeau peut être manoeuvrée indépendamment du capuchon, son pointeau venant pénétrer dans la tige, et assure la'sécurité de la fixation en agissant comme un frein d'écrou. The screw pin can be actuated independently of the cap, its needle from penetrating into the stem, and provides la'sécurité fixing acting as a nut lock.

D'autres particularités et avantages de l'invention apparaitront au cours de la description qui va suivre, faite en référence aux dessins annexés qui en illustrent deux formes de réalisation à titre d'exemples non limitatifs Other features and advantages of the invention will appear during the following description, with reference to the accompanying drawings which illustrate two embodiments of non-limiting examples
- la Figure 1 est une vue en élévation longitudinale d'une première forme de réalisation de l'invention dans laquelle l'implant comprend une vis pour l'ancrage osseux; - Figure 1 is a longitudinal elevational view of a first embodiment of the invention wherein the implant comprises a screw to the bone anchor;
- la Figure 2 est une vue en élévation latérale du capuchon de l'implant de la Figure 1; - Figure 2 is a side elevational view of the cap of the implant of Figure 1;
- la Figure 3 est une vue de dessus du capuchon de la Figure 2; - Figure 3 is a top view of the cap of Figure 2;
- la Figure 4 est une vue en élévation d'une seconde forme de réalisation e l'implant selon l'invention dans laquelle la partie d'ancrage osseux est un crochet; - Figure 4 is an elevation view of a second embodiment for an implant according to the invention wherein the osseous anchoring part is a hook;
- la Figure 5 est une vue en élévation avec arrachement partiel, de l'implant de la Figure 4 fixé sur une tige d'un dispositif d'ostéosynthèse;; - Figure 5 is an elevational partially cut away view of the implant of Figure 4 attached to a rod of an osteosynthesis device ;;
- la Figure 6 est une vue dans un plan sagittal de vertèbres dont l'une est fracturée; - Figure 6 is a view in a sagittal plane of the vertebrae of which is fractured;
- la Figure 7 est une vue dans un plan frontal de la fracture de la Figure 6 réduite par un dispositif d'ostéosynthèse pourvu d'implants selon l'invention; - Figure 7 is a view in a frontal plane of the fracture of Figure 6 reduced by an osteosynthesis device provided with implants according to the invention;
- la Figure 8 est une vue dans le plan sagittal du dispositif de la Figure 7. - Figure 8 is a view in the sagittal plane of the Figure 7 device.

L'implant représenté aux Figures I à 3 est destiné à faire partie d'un dispositif d'ostéosynthèse, notamment du rachis. The implant shown in Figures I to 3 is intended to form part of an osteosynthesis device, particularly for the spine.

Il comprend une partie destinée à l'ancrage osseux, constituée dans cet exemple par une vis 1, connue en soi et qui ne sera donc pas décrite, et un corps 2 de fixation sur une tige 3 dont la surface est lisse ou munie d'aspérités telles que des pointes de diamant. It comprises a part intended for osseous anchoring, constituted in this example by a screw 1, known per se and therefore will not be described, and a body 2 for attachment to a shaft 3 whose surface is smooth or provided with asperities such as diamond tips.

Le corps 2 comporte, en partant de l'ex trémité de la vis 1, une partie cylindrique 4, une partie conique 5 et une partie postérieure du type ouvert, c'est-à-dire qui présente un canal 6 s'éten dant suivant l'axe XX de la vis 1, débouchant sur la partie postérieure, et ouvert de part et d'autre du corps 2 pour pouvoir recevoir la tige 3. Cette dernière prend appui sur un fond arrondi 7 du canal 6, qui est. The body 2 comprises, starting from the former Tremite screw 1, a cylindrical portion 4, a conical portion 5 and a rear part of the open type, that is to say which has a channel 6 is eten ing along the axis XX of the screw 1, leading to the rear portion and opened from either side of the body 2 in order to receive the rod 3. the latter bears on a rounded bottom 7 of the channel 6, which is. d'autre part délimité par deux branches ou berges latérales 8 constituant l'extrémité postérieure du corps 2. on the other hand delimited by two lateral branches or banks 8 constituting the rear end of the body 2.

L'implant comprend un capuchon femelle 9 présentant un taraudage 11 adapté pour pouvoir être vissé sur un filetage correspondant 12 formé sur les branches 8, et pour? The implant comprises a cap 9 having a female thread 11 adapted to be screwed onto a corresponding thread 12 formed on the legs 8, and? que ses deux bords diamétralement opposés (9a) puissent prendre appui, en fin de vissage, sur la tige 3. De son côté, la périphérie du capuchon 9 est également profilée pour permettre son vissage par une clé appropriée non représentée, par exemple par un profil 17 à douze pans (Figure 3) ou un profil octogonal. that two diametrically opposite edges (9a) can be supported at the end of screwing on the rod 3. For its part, the periphery of the cap 9 is also shaped to allow screwing by a not shown appropriate key, for example by a 17 twelve-sided profile (Figure 3) or an octagonal profile. De plus, l'implant comprend une vis pointeau 13 pouvant être vissée dans un trou taraudé 14 ménagé dans un bossage de révolution interne 15 du capuchon 9, d'axe XX, de telle sorte que le pointeau 13a puisse venir s'enfoncer dans la tige 3. Le bossage 15 est dimensionné pour pouvoir s'insérer entre les bras 8 en étant pratiquement à leur contact.De ce fait, tout rapprochement des deux bras 8 pendant le vissage du capuchon 9 est impossible. In addition, the implant comprises a set screw 13 can be screwed into a threaded hole 14 formed in a boss of internal revolution 15 of the cap 9, of axis XX, so that the needle 13a can come to sink into the rod 3. the projection 15 is dimensioned to be inserted between the arms 8 being substantially their contact.De therefore, any combination of the two arms 8 during the screwing of the cap 9 is impossible.

La vis pointeau 13 présente un évidement axial 16 profilé de manière à pouvoir recevoir un outil de vissage non représenté, par exemple un profil à six pans. The screw pin 13 has an axial recess 16 contoured to be able to receive a not shown driving tool, for example a hexagonal profile.

Le filetage 12 de l'extrémité postérieure du corps 2 d'une part, le taraudage 14 du bossage 15 et le filetage de la vis pointeau 13 d'autre part, présentent des pas de vis différents. The thread 12 of the rear end of the body 2 on the one hand, the tapping 14 of the boss 15 and the needle thread of the screw 13 on the other hand, exhibit no different screws. Enfin, la vis d'ancrage 1, le corps 2, le capuchon 9 et la vis 13 sont réalisés en un même matériau biocompatible, par exemple l'acier selon la norme américaine 316 L correspondant à la norme AFNOR AS 1 Z2 CND 17.3, la vis pouvant être selon la norme "M3CH". Finally, the screw anchor 1, the body 2, the cap 9 and the screw 13 are made of the same biocompatible material, for example steel according to US standard 316 L corresponding to the standard AFNOR AS 1 Z2 CND 17.3, the screw being according to standard "M3CH".

Le montage de l'implant qui vient d'être décrit est très simple : on introduit d'abord la tige 3 entre les branches 8 dans le canal 6 jusqu'à ce qu'elle vienne en appui contre le fond 7, puis, la vis pointeau 13 étant engagée dans le bossage 15, on visse partiellement le capuchon 9 sur le filetage 12. On met en charge l'implant par détraction ou compressipn ou dérotation, on fixe ensuite l'ensemble provisoirement par serrage de la vis 13 par l'outil correspondant au profil du logement 16, jusqu'à ce que la pointe 13a pénètre dans la tige 3. Enfin, on procède à la fixation terminale par vissage à fond du capuchon 9. De ce fait, la pointe 13a de la vis 13 entraînée par le capuchon 9 en raison de la différence des deux pas de vis, s'enfonce dans la tige 3. Mounting the implant that has just been described is very simple: first introducing the rod 3 between the arms 8 in the channel 6 until it abuts against the bottom 7, and then, the needle screw 13 being engaged in the boss 15 is screwed partially the cap 9 onto the thread 12. Emphasis is supported by detraction or implant compressipn or derotation, then all provisionally fixed by tightening the screw 13 by tool corresponding to the profile of the housing 16, 13a until the tip enters the rod 3. Finally, one proceeds to the terminal fixing cap base to screw 9. thus, the tip 13a of the screw 13 driven by the cap 9 due to the difference of the two screw threads, sinks into the rod 3.

Au terme de ces opérations, la tige 3 est bloquée à la fois en translation et en rotation en trois points, à savoir : les deux bords 9a du capuchon 9 et la pointe 13a de la vis 13. Enfin, cette dernière assure la sécurité de la fixation en agissant comme un frein d'écrou. At the end of these operations, the rod 3 is locked both in translation and in rotation on three points, namely: the two edges 9a of the cap 9 and 13a tip of the screw 13. Finally, it ensures the safety of fixing by acting as a nut lock.

Dans le second mode de réalisation illustré aux Figures 4 et 5, l'implant est un crochet 18 comportant une lame recourbée 19 pour l'ancrage osseux, connue en soi, et un corps 21 formé de deux branches latérales 8 reliées à la lame 19 par une une partie conique 22 et délimitant entre elles le canal 6, le corps 21 étant similaire au corps 2. La vis pointeau 13 permet le blocage crochet 18-tige 3 dans toutes les directions, comme dans la réalisation des Figures 1 à 3. De même, en raison de la différence des deux pas, à savoir celui du taraudage 11 du capuchon ou capsule 9 et de la vis pointeau 13, il n'y a aucun risque de dévissage du capuchon 9 lorsque la vis pointeau 13 est bloquée sur la tige 3.Le blocage du crochet 18 sur la tige 3 est exécuté sans bloqueur ni verrou de sécurité, et la fixation de la tige 3 dans le canal 6 est alors extrêmement stable, comme cela peut être vérifié par des tests mécaniques. In the second embodiment illustrated in Figures 4 and 5, the implant is a hook 18 having a curved blade 19 to the bone anchor, known per se, and a body 21 formed by two side branches 8 connected to the blade 19 by a tapered portion 22 and defining therebetween the channel 6, the body 21 is similar to the body 2. the set screw 13 allows the 18-pin locking hook 3 in all directions, as in the embodiment of Figures 1 to 3. Similarly, because of the difference of two steps, namely the thread 11 of cap or capsule 9 and the set screw 13, there is no risk of unscrewing the cap 9 when the set screw 13 is blocked on the locking hook 18 of the rod 3. the rod 3 is executed without blocker or safety lock and fixing the pin 3 in the channel 6 is then extremely stable, as can be determined by mechanical testing.

La mise en place du crochet 18 s'exécute de la manière suivante : on procède tout d'abord à son implantation de la même manière que celle d'un crochet à ouverture postérieure fermé par un bloqueur cylindroconique. The introduction of the hook 18 runs in the following manner: firstly proceeds to its implantation in the same manner as that of a posterior hook opening closed by a cylindrical-conical blocker. Ce type de crochet présente un corps creusé d'un canal dont la moitié, du côté de l'implantation de la lame est cylindrique, et l'autre moitié conique. This type of hook has a hollowed body of a channel with half the side of implantation of the blade is cylindrical and the other conical half. Un bloqueur constitué d'un anneau cylindroconique et surmonté d'un corps carré, permet le blocage du crochet sur la tige en niveau et en rotation. Blocker consisting of a cylindro-conical ring, surmounted by a square body, allows for blocking the hook on the rod in level and rotation. Pour obtenir une immobilisation stricte du crochet ouvert dans l'appui osseux, un verrou de sûreté est mis en place, et assure avec le bloqueur une fixation pour un double boulonnage. For a strict immobilization of the open hook in the bony support, a safety lock is put in place, and ensures the blocking for a fastening double bolting.

Donc, après implantation du crochet, on insère la tige 3 dans le canal 6, puis on visse partiellement la capsule ou capuchon 9 au moyen d'une clé adaptée au contour extérieur polygonal 17, on met ensuite en charge (détraction ou compression) par réglage du vissage du capuchon 9. On fixe l'implant au moyen de la clé dont l'extrémité est engagée dans le logement profilé 16 de la vis pointeau 13, et on procède enfin au blocage définitif du capuchon 9 avec la clé précédemment utilisée, Thus, after implantation of the hook is inserted the rod 3 into the channel 6, and then is screwed partially the capsule or cap 9 by means of a key adapted to the outer polygonal profile 17, then start charging (distraction or compression) by cap screwing setting 9. the implant is fixed by means of the key whose end is engaged in the housing section 16 of the needle valve 13, and finally makes the final locking of the cap 9 with the key earlier used,
Il convient de noter que le crochet 18 à ouverture postérieure fermée par le capuchon 9, est spécialement recommandé lorsque l'insertion du bloqueur ou du verrou de sécurité est difficile ou impossible (crochets divergents trop rapprochés, etc..). It should be noted that the hook 18 to rear opening closed by the cap 9, is especially recommended when inserting the blocker or the security lock is difficult or impossible (conflicting hooks too close, etc. ..).

Les Figures 7 et 8 montrent l'implantation d'une instrumentation d'ostéosynthèse sur des vertèbres 10 dont l'une présente une fracture 25 (Figure 6). Figures 7 and 8 show the implantation of an osteosynthesis instrumentation of the vertebrae 10 of which has a fracture 25 (Figure 6). Cette instrumentation comprend deux dispositifs 20 de solidarisation et de traction transversale (DTT) à tiges transversales 22 et crochets 23 fixés sur les tiges 3. L'instrumetation est complétée par plusieurs implants 18 constitués par des crochets à capuchon 9 tels que décrits en référence aux Figures 4 et 5, convenablement répartis le long des tiges 3. This instrumentation has two devices 20 coupling and transverse tensile (DTT) to the transverse rods 22 and hooks 23 attached to the rods 3. The instrumetation is supplemented by several 18 constituted by cap hook implants 9 as described with reference to figures 4 and 5, suitably distributed along the rods 3.

En plus de ceux mentionnés ci-dessus, l'invention présente les avantages suivants In addition to those mentioned above, the invention has the following advantages
- possibilité d'introduction directe de la tige 3 postérieurement au corps de l'implant sans nécessiter des pièces complémentaires, telles que bloqueurs intracanalaires; - possibility of direct introduction of rod 3 subsequently implant the body without requiring additional parts, such as intraductal blockers;
- possibilité de réaliser la compression et la détraction (c'est-à-dire la mise en extension de la partie rachidienne ou osseuse) sans obligation d'une orientation précise de la tête dans le cas des implants à vis, alors qu'une orientation précise est au contraire imposée par la forme conique du système antérieur; - ability to achieve compression and distraction (that is to say the setting expansion of the spinal or bone part) without obligation to a precise orientation of the head in the case of screw implants, while a precise orientation is on the contrary imposed by the conical shape of the prior system;
- simplification considérable de l'instrutentation par la réduction des différents types de corps utilisés jusqu'à présent à un seul type, ouvert postérieurement; - considerable simplification of instrutentation by reducing different body types used so far to one type, open posteriorly;
- simplification corrélative du matériel ancillaire;; - corresponding simplification of ancillary equipment ;;
- simplification de la fabrication, le capuchon, la vis pointeau et le filetage sur l'extrémité postérieure du corps n'impliquant pas de difficulté particulière de fabrication; - simplification of the manufacturing, the cap, the needle screw and the thread on the rear end of the body that do not involve any particular difficulty of manufacture;
- meilleure fixation de l'implant par la fixation en trois points sur la tige, à savoir deux bords opposés du capuchon 9 et la vis pointeau 13; - better attachment of the implant by fixation at three points on the rod, namely two opposite edges of the cap 9 and the needle valve 13;
- possibilité de remise en tension du dispositif (lorsque cela devient nécessaire par suite de la croissance d'un jeune sujet) ou d'ablation aisée, cette dernière étant surtout nécessaire en traumatologie. - Voltage Fitness possibility of the device (when it becomes necessary due to the growth of a young subject) or easy removal, the latter being especially necessary in trauma. En effet, Sie démontage de l'implant peut être effectué très aisément d'abord par dévissage de la vis 13, puis du capuchon 9; Indeed, Sie removal of the implant can be done very easily by first unscrewing the screw 13, and the cap 9;
- enfin facilité d'introduction de la tige dans l'implant, contrastant avec la difficulté actuelle d'introduction de cette tige dans un corps fermé. - finally ease of inserting the rod into the implant, in contrast to the current difficulty of introducing the stem into a closed body.

La méthodologie de montage assure la conservation du logement profilé 16 de la vis 13 grace au fait que l'effort principal de serrage est exercé, non pas sur ce logement 16, mais sur le pourtour 17 du capuchon 9. The mounting method ensures the preservation of the profile housing 16 of the screw 13 thanks to the fact that the main clamping force is exerted not on this housing 16, but on the periphery 17 of the cap 9.

En variante, la vis pointeau 13 peut être excentrée. Alternatively, the screw pin 13 can be eccentrically.

Claims (5)

REVENDICATIONS
1 - Implant pour dispositif d'ostéosynthèse, notamment du rachis, comprenant une partie (1, 19) destinée à l'ancrage osseux et un corps (2, 21) de fixation sur une tige (3), caractérisé en ce que le corps (2, 21) présente un canal (6) débouchant sur une partie postérieure dudit corps, délimitant deux branches latérales (.8) et ouvert de part et d'autre du corps pour pouvoir recevoir la tige (3), et l'implant comporte d'une part un capuchon (9) taraudé, adapté pour pouvoir être vissé sur un filetage (12) formé sur les branches latérales (8) constituant l'extrémité postérieure du corps (2, 21) en fermant le canal (6) de ce côté, et poub que ses deux bords diamétralement opposés (9a) prennent appui que la tige (3), et d'autre part une vis pointeau (13) pouvant être vissée dans un trou taraudé (14) correspondant ménagé dans le capuchon (9), de façon que sa pointe (13a) pénètre dans la tige (3), laquelle est ainsi bloquée en translation et en rotation par le 1 - Implant for an osteosynthesis device, particularly for the spine, comprising a part (1, 19) for the bone anchorage and a body (2, 21) for fixing to a rod (3), characterized in that the body (2, 21) has a channel (6) opening on a rear portion of said body, defining two lateral branches (.8) and open on either side of the body in order to receive the rod (3) and the implant comprises firstly a cap (9) threaded, adapted to be screwed onto a thread (12) formed on the lateral arms (8) constituting the rear end of the body (2, 21) by closing the channel (6) on that side, and refuse cont its two diametrically opposite edges (9a) are supported that the rod (3), and secondly a set screw (13) screwable into a threaded hole (14) formed in the corresponding cap (9) so that its tip (13a) enters the rod (3), which is thus locked in translation and in rotation by the s deux bords (9a) du capuchon (9) et par la vis (13). s two edges (9a) of the cap (9) and the screw (13).
2 - Implant selon la revendication 1 , caractérisé en ce que la vis (13) est engagée dans un bossage interne de révolution (13) du capuchon (9). 2 - implant according to claim 1, characterized in that the screw (13) is engaged in an inner boss of revolution (13) of the cap (9).
3 - Implant selon la revendication 2, caractérisé en ce que la vis pointeau (13) présente un évidement (16) profilé de manière à pouvoir recevoir un outil de vissage, et la périphérie (t7) du capuchon (9) est également profilée pour permettre son vissage par une clef correspondante. 3 - implant according to claim 2, characterized in that the grub screw (13) has a recess (16) profiled so as to receive a screwing tool, and the periphery (t7) of the cap (9) is also profiled for allow screwing by a corresponding key.
4 - Implant selon l'une des revendications 1 à 3, caractérisé en ce que le filetage (12) de l'extrémité postérieure du corps (2, 21) d'une part, le trou taraudé (14) et le filetage de la vis pointeau (13) d'autre part, présentent des pas de vis différents 4 - An implant according to one of claims 1 to 3, characterized in that the thread (12) of the rear end of the body (2, 21) on the one hand, the threaded hole (14) and the thread of the needle screw (13) on the other hand, exhibit no different screw
5 - Implant selon l'une des revendications 1 à 4, caractérisé en ce que la partie d'ancrage (1, 19), le corps (2, 21), le capuchon (9) et la vis pointeau (13) sont réalisés en un même matériau biocompatible. 5 - An implant according to one of claims 1 to 4, characterized in that the anchoring part (1, 19), the body (2, 21), the cap (9) and the pointed screw (13) are made in the same biocompatible material.
FR8717852A 1987-12-21 1987-12-21 Implant for osteosynthesis device, particularly for the spine Expired - Fee Related FR2624720B1 (en)

Priority Applications (1)

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FR8717852A FR2624720B1 (en) 1987-12-21 1987-12-21 Implant for osteosynthesis device, particularly for the spine

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Application Number Priority Date Filing Date Title
FR8717852A FR2624720B1 (en) 1987-12-21 1987-12-21 Implant for osteosynthesis device, particularly for the spine

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FR2624720A1 true FR2624720A1 (en) 1989-06-23
FR2624720B1 FR2624720B1 (en) 1994-04-15

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WO1990009156A1 (en) * 1989-02-09 1990-08-23 Vignaud Jean Louis A supporting device for the spinal column
DE3923996A1 (en) * 1989-07-20 1991-01-31 Lutz Biedermann Receiving portion for the articulated connection with a screw to form a pedicle screw
FR2650173A1 (en) * 1989-07-26 1991-02-01 Jbs Sa Method and device for recovering, fixing, compression, elongation of rachis
FR2656214A1 (en) * 1989-12-26 1991-06-28 Baulny Dominique Dynamic frame for spinal osteosynthesis
EP0441729A1 (en) * 1990-02-08 1991-08-14 STRYKER CORPORATION (a Michigan corporation) Swivelling fastening device for spinal osteosynthesis rods
FR2658414A1 (en) * 1990-02-19 1991-08-23 Sofamor Implant for osteosynthesis device in particular of the spine.
EP0451765A1 (en) * 1990-04-11 1991-10-16 Waldemar Link (GmbH &amp; Co.) Fixator for bone surgery
EP0465158A2 (en) * 1990-07-04 1992-01-08 Seyed Mohammad Hossein Mehdian Apparatus for use in the treatment of spinal disorders
EP0470660A1 (en) * 1990-08-07 1992-02-12 Acromed B.V. Apparatus for the correction of scoliosis
EP0487830A1 (en) * 1990-11-29 1992-06-03 Howmedica GmbH Implant for correction of the humain spinal column
EP0535623A1 (en) * 1991-10-04 1993-04-07 Acromed Corporation Top-entry rod retainer
US5261913A (en) * 1989-07-26 1993-11-16 J.B.S. Limited Company Device for straightening, securing, compressing and elongating the spinal column
ES2043491A1 (en) * 1991-04-30 1993-12-16 Distribuciones Medico Sanitari Improvements to devices for immobilizing/correcting the dorso-lumbar and lumbo-sacral regions of the spinal column
DE4238339A1 (en) * 1992-11-13 1994-05-19 Peter Brehm Fastening screw for spinal column support rod - has hollow slotted head with female thread to accommodate grub-screw to firmly clamp rod in place
WO1994026191A1 (en) * 1993-05-18 1994-11-24 Schäfer Micomed GmbH Osteosynthesis device
EP0639065A1 (en) * 1992-04-29 1995-02-22 Danek Medical, Inc. Positionable spinal fixation device
FR2711909A1 (en) * 1993-11-02 1995-05-12 Chauvin Jean Luc Device for straightening and bracing a spinal column
US5437669A (en) * 1993-08-12 1995-08-01 Amei Technologies Inc. Spinal fixation systems with bifurcated connectors
EP0671151A1 (en) * 1994-03-10 1995-09-13 Schäfer micomed GmbH Osteosynthetic device
EP0672388A1 (en) * 1994-02-22 1995-09-20 Howmedica GmbH An apparatus for correcting a spinal column having a damaged vertebrae
US5545165A (en) * 1992-10-09 1996-08-13 Biedermann Motech Gmbh Anchoring member
WO1996031167A1 (en) * 1995-04-05 1996-10-10 Chauvin Jean Luc Device for straightening and supporting a backbone
US5624442A (en) * 1990-04-26 1997-04-29 Cross Medical Products, Inc. Transverse link for use with a spinal implant system
WO1997037604A1 (en) * 1996-04-09 1997-10-16 Waldemar Link (Gmbh & Co.) Spinal fixing device
WO1999000065A1 (en) 1997-06-27 1999-01-07 David Attali Adjustable fixing device for straightening and supporting the back bone
US6132431A (en) * 1996-04-18 2000-10-17 Tresona Instrument Ab Device and method for correcting and stabilizing a deviating curvature of a spinal column
EP1064885A1 (en) * 1999-07-02 2001-01-03 Sulzer Orthopedics Ltd. Spinal fixator
US6432108B1 (en) 2000-01-24 2002-08-13 Depuy Orthopaedics, Inc. Transverse connector
US6547789B1 (en) 1999-07-02 2003-04-15 Sulzer Orthopedics Ltd. Holding apparatus for the spinal column
EP1348388A1 (en) * 2002-03-27 2003-10-01 BIEDERMANN MOTECH GmbH Bone anchoring device for stabilisation of bone segments
US6641586B2 (en) 2002-02-01 2003-11-04 Depuy Acromed, Inc. Closure system for spinal fixation instrumentation
US6736817B2 (en) 1999-12-17 2004-05-18 Thomas N. Troxell Transconnector for coupling spinal rods
US6802844B2 (en) 2001-03-26 2004-10-12 Nuvasive, Inc Spinal alignment apparatus and methods
US6843791B2 (en) 2003-01-10 2005-01-18 Depuy Acromed, Inc. Locking cap assembly for spinal fixation instrumentation
US7220262B1 (en) 2001-03-16 2007-05-22 Sdgi Holdings, Inc. Spinal fixation system and related methods
US7530992B2 (en) 2002-03-27 2009-05-12 Biedermann Motech Gmbh Bone anchoring device for stabilising bone segments and seat part of a bone anchoring device
EP2135574A1 (en) 2008-06-19 2009-12-23 BIEDERMANN MOTECH GmbH Bone anchoring assembly
US7662172B2 (en) 2004-10-25 2010-02-16 X-Spine Systems, Inc. Pedicle screw systems and methods of assembling/installing the same
ITRM20080502A1 (en) * 2008-09-22 2010-03-23 2B1 S R L Barra perfected for correction of the spine and support system of the spine using said bar.
US7686835B2 (en) 2005-10-04 2010-03-30 X-Spine Systems, Inc. Pedicle screw system with provisional locking aspects
US7833251B1 (en) 2004-01-06 2010-11-16 Nuvasive, Inc. System and method for performing spinal fixation
US7918857B2 (en) 2006-09-26 2011-04-05 Depuy Spine, Inc. Minimally invasive bone anchor extensions
US7967845B2 (en) 2004-03-31 2011-06-28 Depuy Spine, Inc. Head-to-head connector spinal fixation system
US8029539B2 (en) 2007-12-19 2011-10-04 X-Spine Systems, Inc. Offset multiaxial or polyaxial screw, system and assembly
US8066745B2 (en) 2005-07-29 2011-11-29 X-Spine Systems, Inc. Capless multiaxial screw and spinal fixation assembly and method
US8097025B2 (en) 2005-10-25 2012-01-17 X-Spine Systems, Inc. Pedicle screw system configured to receive a straight or curved rod
US8147522B2 (en) 2004-10-25 2012-04-03 X-Spine Systems, Inc. Bone fixation method
US8162990B2 (en) 2006-11-16 2012-04-24 Spine Wave, Inc. Multi-axial spinal fixation system
US8192471B2 (en) 2004-03-31 2012-06-05 Depuy Spine, Inc. Rod attachment for head to head cross connector
US8348952B2 (en) 2006-01-26 2013-01-08 Depuy International Ltd. System and method for cooling a spinal correction device comprising a shape memory material for corrective spinal surgery
US8361117B2 (en) 2006-11-08 2013-01-29 Depuy Spine, Inc. Spinal cross connectors
WO2014147104A1 (en) * 2013-03-22 2014-09-25 Aesculap Ag Vertebral column-stabilizing system and surgical fastening element for a vertebral column-stabilizing system
US8961572B2 (en) 2004-08-27 2015-02-24 Depuy Synthes Products Llc Dual rod cross connectors and inserter tools
US9351774B2 (en) 2002-12-31 2016-05-31 DePuy Synthes Products, Inc. Resilient bone plate and screw system allowing bi-directional assembly
US9770269B1 (en) 2011-03-01 2017-09-26 Nuvasive, Inc. Spinal Cross-connector
US9956009B1 (en) 2011-03-01 2018-05-01 Nuvasive, Inc. Posterior cervical fixation system
US10299839B2 (en) 2003-12-16 2019-05-28 Medos International Sárl Percutaneous access devices and bone anchor assemblies

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US8414588B2 (en) 2007-10-04 2013-04-09 Depuy Spine, Inc. Methods and devices for minimally invasive spinal connection element delivery
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US9060813B1 (en) 2008-02-29 2015-06-23 Nuvasive, Inc. Surgical fixation system and related methods
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Cited By (96)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990009156A1 (en) * 1989-02-09 1990-08-23 Vignaud Jean Louis A supporting device for the spinal column
US5129388A (en) * 1989-02-09 1992-07-14 Vignaud Jean Louis Device for supporting the spinal column
DE3923996A1 (en) * 1989-07-20 1991-01-31 Lutz Biedermann Receiving portion for the articulated connection with a screw to form a pedicle screw
FR2650173A1 (en) * 1989-07-26 1991-02-01 Jbs Sa Method and device for recovering, fixing, compression, elongation of rachis
WO1991001691A1 (en) * 1989-07-26 1991-02-21 J.B.S. S.A. Device for straightening, securing, compressing and elongating the spinal column
AU638265B2 (en) * 1989-07-26 1993-06-24 Aesculap Ag & Co. Kg Device for straightening, securing, compressing and elongating the spinal column
US5261913A (en) * 1989-07-26 1993-11-16 J.B.S. Limited Company Device for straightening, securing, compressing and elongating the spinal column
FR2656214A1 (en) * 1989-12-26 1991-06-28 Baulny Dominique Dynamic frame for spinal osteosynthesis
EP0441729A1 (en) * 1990-02-08 1991-08-14 STRYKER CORPORATION (a Michigan corporation) Swivelling fastening device for spinal osteosynthesis rods
EP0443892A1 (en) * 1990-02-19 1991-08-28 Societe De Fabrication De Materiel Orthopedique Sofamor Implant for osteosynthesis device, in particular for the spinal column
FR2658414A1 (en) * 1990-02-19 1991-08-23 Sofamor Implant for osteosynthesis device in particular of the spine.
US5154719A (en) * 1990-02-19 1992-10-13 Societe De Fabrication De Materiel Orthopedique - Sofamor Implant for a device for osteosynthesis, in particular of the spine
EP0451765A1 (en) * 1990-04-11 1991-10-16 Waldemar Link (GmbH &amp; Co.) Fixator for bone surgery
US5624442A (en) * 1990-04-26 1997-04-29 Cross Medical Products, Inc. Transverse link for use with a spinal implant system
EP0465158A3 (en) * 1990-07-04 1992-03-18 Seyed Mohammad Hossein Mehdian Apparatus for use in the treatment of spinal disorders
US5217497A (en) * 1990-07-04 1993-06-08 Mehdian Seyed M H Apparatus for use in the treatment of spinal disorders
EP0465158A2 (en) * 1990-07-04 1992-01-08 Seyed Mohammad Hossein Mehdian Apparatus for use in the treatment of spinal disorders
EP0470660A1 (en) * 1990-08-07 1992-02-12 Acromed B.V. Apparatus for the correction of scoliosis
EP0487830A1 (en) * 1990-11-29 1992-06-03 Howmedica GmbH Implant for correction of the humain spinal column
ES2043491A1 (en) * 1991-04-30 1993-12-16 Distribuciones Medico Sanitari Improvements to devices for immobilizing/correcting the dorso-lumbar and lumbo-sacral regions of the spinal column
EP0535623A1 (en) * 1991-10-04 1993-04-07 Acromed Corporation Top-entry rod retainer
EP0639065A4 (en) * 1992-04-29 1995-10-25 Danek Medical Inc Positionable spinal fixation device.
EP0639065A1 (en) * 1992-04-29 1995-02-22 Danek Medical, Inc. Positionable spinal fixation device
TR28176A (en) * 1992-04-29 1996-02-13 Danek Medical Inc PIPE to a spinal device temporarily placing a fixing clamp.
US5725527A (en) * 1992-09-10 1998-03-10 Biedermann Motech Gmbh Anchoring member
EP0776635A1 (en) * 1992-10-09 1997-06-04 BIEDERMANN MOTECH GmbH Anchoring element
US5545165A (en) * 1992-10-09 1996-08-13 Biedermann Motech Gmbh Anchoring member
DE4238339A1 (en) * 1992-11-13 1994-05-19 Peter Brehm Fastening screw for spinal column support rod - has hollow slotted head with female thread to accommodate grub-screw to firmly clamp rod in place
WO1994026191A1 (en) * 1993-05-18 1994-11-24 Schäfer Micomed GmbH Osteosynthesis device
US5738685A (en) * 1993-05-18 1998-04-14 Schafer Micomed Gmbh Osteosynthesis device
US5437669A (en) * 1993-08-12 1995-08-01 Amei Technologies Inc. Spinal fixation systems with bifurcated connectors
FR2711909A1 (en) * 1993-11-02 1995-05-12 Chauvin Jean Luc Device for straightening and bracing a spinal column
EP0672388A1 (en) * 1994-02-22 1995-09-20 Howmedica GmbH An apparatus for correcting a spinal column having a damaged vertebrae
US5683390A (en) * 1994-02-22 1997-11-04 Howmedica Gmbh Correcting a spinal column
EP0671151A1 (en) * 1994-03-10 1995-09-13 Schäfer micomed GmbH Osteosynthetic device
WO1996031167A1 (en) * 1995-04-05 1996-10-10 Chauvin Jean Luc Device for straightening and supporting a backbone
WO1997037604A1 (en) * 1996-04-09 1997-10-16 Waldemar Link (Gmbh & Co.) Spinal fixing device
US6139549A (en) * 1996-04-09 2000-10-31 Waldemar Link (Gmbh & Co.) Spinal fixing device
US6132431A (en) * 1996-04-18 2000-10-17 Tresona Instrument Ab Device and method for correcting and stabilizing a deviating curvature of a spinal column
WO1999000065A1 (en) 1997-06-27 1999-01-07 David Attali Adjustable fixing device for straightening and supporting the back bone
EP1064885A1 (en) * 1999-07-02 2001-01-03 Sulzer Orthopedics Ltd. Spinal fixator
US6547789B1 (en) 1999-07-02 2003-04-15 Sulzer Orthopedics Ltd. Holding apparatus for the spinal column
US6736817B2 (en) 1999-12-17 2004-05-18 Thomas N. Troxell Transconnector for coupling spinal rods
US6432108B1 (en) 2000-01-24 2002-08-13 Depuy Orthopaedics, Inc. Transverse connector
US7473269B1 (en) 2001-03-16 2009-01-06 Warsaw Orthopedic, Inc. Spinal fixation system and related methods
US7220262B1 (en) 2001-03-16 2007-05-22 Sdgi Holdings, Inc. Spinal fixation system and related methods
USRE44392E1 (en) 2001-03-16 2013-07-23 Warsaw Orthopedic, Inc. Spinal fixation system and related methods
US6802844B2 (en) 2001-03-26 2004-10-12 Nuvasive, Inc Spinal alignment apparatus and methods
US6641586B2 (en) 2002-02-01 2003-11-04 Depuy Acromed, Inc. Closure system for spinal fixation instrumentation
US7530992B2 (en) 2002-03-27 2009-05-12 Biedermann Motech Gmbh Bone anchoring device for stabilising bone segments and seat part of a bone anchoring device
EP1348388A1 (en) * 2002-03-27 2003-10-01 BIEDERMANN MOTECH GmbH Bone anchoring device for stabilisation of bone segments
US6918911B2 (en) * 2002-03-27 2005-07-19 Biedermann Motech Gmbh Bone anchoring device for stabilizing bone segments and seat part of a bone anchoring device
US9351774B2 (en) 2002-12-31 2016-05-31 DePuy Synthes Products, Inc. Resilient bone plate and screw system allowing bi-directional assembly
US6843791B2 (en) 2003-01-10 2005-01-18 Depuy Acromed, Inc. Locking cap assembly for spinal fixation instrumentation
US10299839B2 (en) 2003-12-16 2019-05-28 Medos International Sárl Percutaneous access devices and bone anchor assemblies
US7833251B1 (en) 2004-01-06 2010-11-16 Nuvasive, Inc. System and method for performing spinal fixation
US9387014B2 (en) 2004-03-31 2016-07-12 DePuy Synthes Products, Inc. Systems and methods for decompressing a spinal canal
US9629663B2 (en) 2004-03-31 2017-04-25 DePuy Synthes Products, Inc. Rod attachment for head to head cross connector
US8920469B2 (en) 2004-03-31 2014-12-30 Depuy Synthes Products Llc Rod attachment for head to head cross connector
US7967845B2 (en) 2004-03-31 2011-06-28 Depuy Spine, Inc. Head-to-head connector spinal fixation system
US8192471B2 (en) 2004-03-31 2012-06-05 Depuy Spine, Inc. Rod attachment for head to head cross connector
US8556937B2 (en) 2004-03-31 2013-10-15 DePuy Synthes Products, LLC Rod attachment for head to head cross connector
US8920470B2 (en) 2004-03-31 2014-12-30 Depuy Synthes Products Llc Rod attachment for head to head cross connector
US9486247B2 (en) 2004-03-31 2016-11-08 DePuy Synthes Products, Inc. Rod attachment for head to head cross connector
US8961572B2 (en) 2004-08-27 2015-02-24 Depuy Synthes Products Llc Dual rod cross connectors and inserter tools
US7662172B2 (en) 2004-10-25 2010-02-16 X-Spine Systems, Inc. Pedicle screw systems and methods of assembling/installing the same
US8142481B2 (en) 2004-10-25 2012-03-27 X-Spine Systems, Inc. Pedicle screw systems and methods of assembling/installing the same
US8147522B2 (en) 2004-10-25 2012-04-03 X-Spine Systems, Inc. Bone fixation method
US8092504B2 (en) 2004-10-25 2012-01-10 X-Spine Systems, Inc. Pedicle screw systems and methods of assembling/installing the same
US8012185B2 (en) 2004-10-25 2011-09-06 X-Spine Systems, Inc. Pedicle screw systems and methods of assembling/installing the same
US8066745B2 (en) 2005-07-29 2011-11-29 X-Spine Systems, Inc. Capless multiaxial screw and spinal fixation assembly and method
US8016866B2 (en) 2005-10-04 2011-09-13 X-Spine Systems, Inc. Pedicle screw system with provisional locking aspects
US7686835B2 (en) 2005-10-04 2010-03-30 X-Spine Systems, Inc. Pedicle screw system with provisional locking aspects
US8097025B2 (en) 2005-10-25 2012-01-17 X-Spine Systems, Inc. Pedicle screw system configured to receive a straight or curved rod
US8348952B2 (en) 2006-01-26 2013-01-08 Depuy International Ltd. System and method for cooling a spinal correction device comprising a shape memory material for corrective spinal surgery
US7918858B2 (en) 2006-09-26 2011-04-05 Depuy Spine, Inc. Minimally invasive bone anchor extensions
US8828007B2 (en) 2006-09-26 2014-09-09 DePuy Synthes Products, LLC Minimally invasive bone anchor extensions
US7918857B2 (en) 2006-09-26 2011-04-05 Depuy Spine, Inc. Minimally invasive bone anchor extensions
US8870921B2 (en) 2006-11-08 2014-10-28 DePuy Synthes Products, LLC Spinal cross connectors
US8361117B2 (en) 2006-11-08 2013-01-29 Depuy Spine, Inc. Spinal cross connectors
US9861395B2 (en) 2006-11-16 2018-01-09 Spine Wave, Inc. Multi-axial spinal fixation system
US8475500B2 (en) 2006-11-16 2013-07-02 Spine Wave, Inc. Multi-axial spinal fixation system
US8414622B2 (en) 2006-11-16 2013-04-09 Spine Wave, Inc. Multi-axial spinal fixation system
US8162990B2 (en) 2006-11-16 2012-04-24 Spine Wave, Inc. Multi-axial spinal fixation system
US9226777B2 (en) 2006-11-16 2016-01-05 Spine Wave, Inc. Multi-axial spinal fixation system
US9198691B2 (en) 2007-12-19 2015-12-01 X-Spine Systems, Inc. Offset multiaxial or polyaxial screw, system and assembly
US8480714B2 (en) 2007-12-19 2013-07-09 X-Spine Systems, Inc. Offset multiaxial or polyaxial screw, system and assembly
US8029539B2 (en) 2007-12-19 2011-10-04 X-Spine Systems, Inc. Offset multiaxial or polyaxial screw, system and assembly
EP2135574A1 (en) 2008-06-19 2009-12-23 BIEDERMANN MOTECH GmbH Bone anchoring assembly
US9144437B2 (en) 2008-06-19 2015-09-29 Biedermann Technologies Gmbh & Co. Kg Bone anchoring assembly
ITRM20080502A1 (en) * 2008-09-22 2010-03-23 2B1 S R L Barra perfected for correction of the spine and support system of the spine using said bar.
US9770269B1 (en) 2011-03-01 2017-09-26 Nuvasive, Inc. Spinal Cross-connector
US10136925B2 (en) 2011-03-01 2018-11-27 Nuvasive, Inc. Spinal cross-connector
US9956009B1 (en) 2011-03-01 2018-05-01 Nuvasive, Inc. Posterior cervical fixation system
US9655653B2 (en) 2013-03-22 2017-05-23 Aesculap Ag Vertebral column-stabilizing system and surgical fastening element for a vertebral column-stabilizing system
WO2014147104A1 (en) * 2013-03-22 2014-09-25 Aesculap Ag Vertebral column-stabilizing system and surgical fastening element for a vertebral column-stabilizing system

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