FR3098386A1 - SPINE STABILIZATION SYSTEM - Google Patents
SPINE STABILIZATION SYSTEM Download PDFInfo
- Publication number
- FR3098386A1 FR3098386A1 FR1907647A FR1907647A FR3098386A1 FR 3098386 A1 FR3098386 A1 FR 3098386A1 FR 1907647 A FR1907647 A FR 1907647A FR 1907647 A FR1907647 A FR 1907647A FR 3098386 A1 FR3098386 A1 FR 3098386A1
- Authority
- FR
- France
- Prior art keywords
- stabilization system
- head
- channel
- screws
- flexible
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7019—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other
- A61B17/702—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other having a core or insert, and a sleeve, whereby a screw or hook can move along the core or in the sleeve
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7004—Longitudinal elements, e.g. rods with a cross-section which varies along its length
- A61B17/7008—Longitudinal elements, e.g. rods with a cross-section which varies along its length with parts of, or attached to, the longitudinal elements, bearing against an outside of the screw or hook heads, e.g. nuts on threaded rods
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7019—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other
- A61B17/7031—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other made wholly or partly of flexible material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7032—Screws or hooks with U-shaped head or back through which longitudinal rods pass
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Neurology (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
Titre. Système de stabilisation de la colonne vertébrale Système de stabilisation de la colonne vertébrale comportant des moyens d’ancrage constitués de vis pédiculaires monoaxiales (1) présentant une partie filetée (11) et une tête (10), ainsi qu’un moyen de liaison (2) reliant les têtes (10) et solidarisé à celles-ci par des moyens d’immobilisation. Le moyen de liaison (2) comprend un élément extérieur (21) de forme cylindrique percé dans canal axial (22) traversé librement par un élément intérieur (20) flexible et non extensible. La tête (10) de chacune des vis (1) présente un canal transversal destiné au passage de l’élément intérieur flexible et non extensible (20) en vue d’y être solidarisé, et chaque tête (10) présente deux faces opposées (12, 13), desquelles débouche le canal, inclinées par rapport à l’axe principal (XX’) destinées à constituer chacune une zone d’appui d’une extrémité (23) de l’élément extérieur de forme cylindrique (21). Figure pour l’abrégé : Fig. 3 Title. Spine stabilization system Spine stabilization system comprising anchoring means consisting of monoaxial pedicle screws (1) having a threaded part (11) and a head (10), as well as a connecting means (2) connecting the heads (10) ) and secured to them by means of immobilization. The connecting means (2) comprises an outer element (21) of cylindrical shape pierced in an axial channel (22) freely traversed by a flexible and non-extensible inner element (20). The head (10) of each of the screws (1) has a transverse channel intended for the passage of the flexible and non-extensible interior element (20) with a view to being secured thereto, and each head (10) has two opposite faces ( 12, 13), from which the channel emerges, inclined relative to the main axis (XX ') each intended to constitute a bearing zone of one end (23) of the cylindrical outer element (21). Figure for the abstract: Fig. 3
Description
La présente invention a pour objet système de stabilisation de la colonne vertébrale.The present invention relates to a system for stabilizing the spine.
On connaît déjà des systèmes de stabilisation la colonne vertébrale, qui comprennent essentiellement des moyens d’ancrage constitués de vis pédiculaires, entre lesquels s’étendent, parallèlement à l’axe du rachis, de moyens de liaison tels que des tiges, barres ou plaques.Systems for stabilizing the spine are already known, which essentially comprise anchoring means consisting of pedicle screws, between which extend, parallel to the axis of the spine, connecting means such as rods, bars or plates .
Ces systèmes assurent une liaison rigide entre les vertèbres, sachant qu’il peut être préférable que cette liaison soit plus dynamique. On connaît ainsi des systèmes de stabilisation dynamiques, où les moyens de liaison sont de type flexible.These systems ensure a rigid connection between the vertebrae, knowing that it may be preferable for this connection to be more dynamic. Dynamic stabilization systems are thus known, where the connection means are of the flexible type.
Ainsi, dans la plupart de ces versions dynamiques, les moyens d’ancrage sont associés à un moyen de liaison est constitué d’au moins deux éléments coaxiaux flexibles, l’un intérieur qui est flexible et qui permet la liaison entre les deux moyens d’ancrage, et l’un extérieur, apte à être comprimé axialement en prenant appui sur lesdits deux moyens d’ancrage, en sorte d’assurer une certaine élasticité en compression. Un tel système est décrit dans le document EP0669109.Thus, in most of these dynamic versions, the anchoring means are associated with a connection means consisting of at least two flexible coaxial elements, one inside which is flexible and which allows the connection between the two means of 'anchoring, and the outer one, able to be compressed axially by resting on said two anchoring means, so as to ensure a certain elasticity in compression. Such a system is described in document EP0669109.
Si ces systèmes dynamiques présentent des avantages quant à la souplesse de la liaison, ils ne permettent, tout comme les systèmes non dynamiques d’orienter cette liaison, aussi, la présente invention a pour but de proposer un système de stabilisation dynamique ou pas de la colonne vertébrale procurant une lordose automatique.If these dynamic systems have advantages in terms of the flexibility of the connection, they do not allow, like the non-dynamic systems, to orient this connection, so the present invention aims to propose a system for dynamic stabilization or not of the spine providing automatic lordosis.
Le système de stabilisation de la colonne vertébrale selon l’invention comporte des moyens d’ancrage constitués de vis pédiculaires monoaxiales présentant une partie filetée et une tête, et un moyen de liaison reliant lesdites têtes et solidarisé à celles-ci par des moyens d’immobilisation, et il se caractérise en ce que :
- ledit moyen de liaison comprend deux éléments coaxiaux à savoir un élément extérieur de forme cylindrique percé dans canal axial traversé librement par un élément intérieur flexible et non extensible,
- la tête de chacune desdites vis présente un canal transversal, à savoir d’axe perpendiculaire à l’axe principal, celui de ladite partie filetée, ledit canal étant destiné au passage dudit élément intérieur flexible et non extensible, en vue d’y être solidarisé,
- et en ce que la tête de chacune desdites vis présente deux faces opposées, desquelles débouche ledit canal, qui consistent en des faces planes non parallèles, inclinées par rapport audit axe principal et en sorte de se rapprocher du côté opposé à la partie filetée, et destinées à constituer chacune une zone d’appui d’une extrémité dudit élément extérieur de forme cylindrique.
- said connecting means comprises two coaxial elements, namely an outer element of cylindrical shape pierced in an axial channel freely traversed by a flexible and non-extensible inner element,
- the head of each of said screws has a transverse channel, namely with an axis perpendicular to the main axis, that of said threaded part, said channel being intended for the passage of said flexible and non-extensible inner element, with a view to being secured therein ,
- and in that the head of each of said screws has two opposite faces, from which said channel emerges, which consist of non-parallel planar faces, inclined with respect to said main axis and so as to come closer to the side opposite the threaded part, and each intended to constitute a support zone for one end of said outer element of cylindrical shape.
On comprendra que lors de la mise en tension de l’élément intérieur du moyen de liaison entre deux vis, la mise en appui de l’élément extérieur de forme cylindrique contre les faces inclinées de la tête de vis va contraindre les vis à s’évaser l’une par rapport à l‘autre et créer automatiquement une lordose.It will be understood that during the tensioning of the inner element of the connecting means between two screws, the bearing of the outer element of cylindrical shape against the inclined faces of the screw head will force the screws to widen relative to each other and automatically create lordosis.
Selon une caractéristique additionnelle du système de stabilisation selon l’invention, l’angle d’inclinaison de chacune des faces par rapport à l’axe principal est proche ou égal à 8°.According to an additional characteristic of the stabilization system according to the invention, the angle of inclination of each of the faces with respect to the main axis is close to or equal to 8°.
Selon une autre caractéristique additionnelle du système de stabilisation selon l’invention, l’élément intérieur flexible et non extensible consiste en un câble en titane.According to another additional characteristic of the stabilization system according to the invention, the flexible and non-extensible inner element consists of a titanium cable.
Selon une autre caractéristique additionnelle du système de stabilisation selon l’invention, l’élément extérieur de forme cylindrique est réalisé dans un matériau semi-rigide en sorte de présenter une certaine flexibilité .According to another additional characteristic of the stabilization system according to the invention, the outer element of cylindrical shape is made of a semi-rigid material so as to present a certain flexibility.
Une telle caractéristique permet de rendre le système de stabilisation dynamique.Such a characteristic makes it possible to make the stabilization system dynamic.
Selon une autre caractéristique additionnelle du système de stabilisation selon l’invention, les moyens d’immobilisation du moyen de liaison, c’est-à-dire de l’élément intérieur, dans le canal de la tête d’une vis, consistent en une vis vissée dans un trou taraudé qui débouche dans ledit canal.According to another additional characteristic of the stabilization system according to the invention, the means for immobilizing the connecting means, that is to say the inner element, in the channel of the head of a screw, consist of a screw screwed into a tapped hole which opens into said channel.
Selon une autre caractéristique additionnelle du système de stabilisation selon l’invention, le trou taraudé est pratiqué au sommet de la tête de la vis pédiculaire, selon l’axe principal.According to another additional characteristic of the stabilization system according to the invention, the tapped hole is made at the top of the head of the pedicle screw, along the main axis.
Les avantages et les caractéristiques du système de stabilisation selon l’invention, ressortiront plus clairement de la description qui suit et qui se rapporte au dessin annexé, lequel en représente un mode de réalisation non limitatif.The advantages and characteristics of the stabilization system according to the invention will emerge more clearly from the description which follows and which relates to the appended drawing, which represents a non-limiting embodiment thereof.
Dans le dessin annexé: In the attached drawing :
En référence à la figure 1 on peut voir un système de stabilisation dynamique selon l’invention, lequel comprend deux vis pédiculaires 1 dont les têtes 10 sont reliées par un moyen de liaison 2.Referring to Figure 1 we can see a dynamic stabilization system according to the invention, which comprises two pedicle screws 1 whose heads 10 are connected by a connecting means 2.
Chacune des vis pédiculaires 1, dont une est représentée sur la figure 2, comporte une tige filetée 11 s’étendant selon un axe principal XX’, et destinée à être vissée dans un corps vertébral d’une vertèbre en passant par un pédicule.Each of the pedicle screws 1, one of which is shown in Figure 2, comprises a threaded rod 11 extending along a main axis XX', and intended to be screwed into a vertebral body of a vertebra passing through a pedicle.
Selon l’invention, la tête 10 de chacune de ces vis 1, présente deux faces planes opposées 12 et 13, non parallèles, inclinées par rapport à l’axe principal XX’, en sorte que leurs bords du côté de la tige filetée 11 soient plus éloignés que leurs bords du côté du sommet de la tête 10.According to the invention, the head 10 of each of these screws 1 has two opposite flat faces 12 and 13, not parallel, inclined with respect to the main axis XX', so that their edges on the side of the threaded rod 11 are farther than their edges from the side of the top of the head 10.
L’inclinaison de chacune des faces 12 et 13, par rapport à l’axe principal XX’, peut être variable, il est de préférence proche ou égal à 8°.The inclination of each of the faces 12 and 13, with respect to the main axis XX', can be variable, it is preferably close to or equal to 8°.
La tête 10 est traversée transversalement, perpendiculairement à l’axe XX’, d’un canal 14 dont les extrémités débouchent chacune dans une face 12 ou 13.The head 10 is traversed transversely, perpendicular to the axis XX', by a channel 14 whose ends each open into a face 12 or 13.
Aucun des plans des faces 12 et 13 n’est ainsi perpendiculaire à l’axe du canal 14.None of the planes of faces 12 and 13 is thus perpendicular to the axis of channel 14.
La tête 10 comporte également à son sommet, un trou taraudé 15, qui débouche dans le canal 14, et dans lequel est vissé une vis 16 de type comportant un pointeau, non visible.The head 10 also comprises at its top, a threaded hole 15, which opens into the channel 14, and in which is screwed a screw 16 of the type comprising a punch, not visible.
En référence également à la figure 3, on peut voir que le moyen de liaison 2 est constitué de deux éléments coaxiaux, à savoir un élément intérieur 20 en forme de câble cylindrique, et un élément extérieur 21 de forme cylindrique percé d’un canal 22 traversé par l’élément intérieur 20.Referring also to Figure 3, it can be seen that the connecting means 2 consists of two coaxial elements, namely an inner element 20 in the form of a cylindrical cable, and an outer element 21 of cylindrical shape pierced with a channel 22 crossed by the inner element 20.
L’élément intérieur 20 consiste préférentiellement en un câble en titane de type tressé, de diamètre lui permettant d’être engagé dans les canaux 14 des vis 1, et d’y être serrés par les vis 16. Ce câble 20 présente donc une certaine flexibilité tout en étant non extensible.The inner element 20 preferably consists of a titanium cable of the braided type, of a diameter allowing it to be engaged in the channels 14 of the screws 1, and to be tightened there by the screws 16. This cable 20 therefore has a certain flexibility while being non-stretchable.
L’élément extérieur cylindrique 21 peut être réalisé, non limitativement, en un polymère bio compatible présentant une certaine élasticité autorisant la flexibilité de cet élément extérieur 21, et il comporte à chacune de ses extrémités des faces planes 23, perpendiculaires à l’axe de cet élément extérieur 21.The cylindrical outer element 21 can be made, without limitation, of a biocompatible polymer having a certain elasticity allowing the flexibility of this outer element 21, and it comprises at each of its ends flat faces 23, perpendicular to the axis of this outer element 21.
En pratique, après insertion des vis pédiculaires 1, le câble 20 est introduit dans leurs canaux 14 après avoir intercalé entre les deux têtes 10 un élément extérieur 21. Puis on bloque le câble 20 dans un canal 14 au moyen de sa vis 16, enfin on exerce une traction sur le câble 20, du côté de la vis 1 non solidarisée au câble 14, ce qui a pour conséquence, du fait des surfaces en contact à savoir 12 et/ou 13, et 23, qui sont non coplanaires, un bridage des vis pédiculaire 1, et une prise d’angle de l’une par rapport à l‘autre, c’est-à-dire un évasement des parties filetées 11, en sorte de créer automatiquement une lordose des vertèbres, non représentées, dans lesquelles sont vissées les vis 1.In practice, after insertion of the pedicle screws 1, the cable 20 is introduced into their channels 14 after having inserted between the two heads 10 an external element 21. Then the cable 20 is blocked in a channel 14 by means of its screw 16, finally traction is exerted on the cable 20, on the side of the screw 1 not secured to the cable 14, which has the consequence, due to the surfaces in contact, namely 12 and/or 13, and 23, which are not coplanar, a clamping of the pedicle screws 1, and an angle of one relative to the other, that is to say a widening of the threaded parts 11, so as to automatically create a lordosis of the vertebrae, not shown, into which the screws 1 are screwed.
Après bridage, le câble 20 est immobilisé dans la seconde vis pédiculaire 1, et il peut être procédé de manière identique avec une troisième vis pédiculaire 1, si cela est nécessaire.After clamping, the cable 20 is immobilized in the second pedicle screw 1, and it can be done in the same way with a third pedicle screw 1, if necessary.
L’élément extérieur cylindrique 21 fait ainsi office de cale permettant de brider les vis 1 sous l’action de traction du câble 20. Aussi, dans le cas d’un système de stabilisation dynamique, il convient que le matériau utilisé ne soit pas trop souple ou élastique, pour ne pas amortir complètement l’effet recherché.The cylindrical outer element 21 thus acts as a wedge making it possible to clamp the screws 1 under the pulling action of the cable 20. Also, in the case of a dynamic stabilization system, the material used should not be too flexible or elastic, so as not to completely dampen the desired effect.
Claims (6)
- ledit moyen de liaison (2) comprend deux éléments coaxiaux à savoir un élément extérieur (21) de forme cylindrique percé dans canal axial (22) traversé librement par un élément intérieur (20) flexible et non extensible,
- la tête (10) de chacune desdites vis (1) présente un canal transversal, (14) à savoir d’axe perpendiculaire à l’axe principal (XX’), celui de ladite partie filetée (11), ledit canal (14) étant destiné au passage dudit élément intérieur flexible et non extensible (20) en vue d’y être solidarisé,
- et en ce que la tête (10) de chacune desdites vis (1) présente deux faces opposées (12, 13), desquelles débouche ledit canal (14), qui consistent en des faces planes non parallèles, inclinées par rapport audit axe principal (XX’) et en sorte de se rapprocher du côté opposé à la partie filetée, et destinées à constituer chacune une zone d’appui d’une extrémité (23) dudit élément extérieur de forme cylindrique (21).
- said connecting means (2) comprises two coaxial elements, namely an outer element (21) of cylindrical shape pierced in an axial channel (22) freely traversed by an inner element (20) flexible and non-extensible,
- the head (10) of each of said screws (1) has a transverse channel (14), namely with an axis perpendicular to the main axis (XX'), that of said threaded part (11), said channel (14) being intended for the passage of said flexible and non-extensible inner element (20) in order to be secured thereto,
- and in that the head (10) of each of said screws (1) has two opposite faces (12, 13), from which opens said channel (14), which consist of non-parallel planar faces, inclined with respect to said main axis ( XX') and so as to come closer to the side opposite the threaded part, and each intended to constitute a support zone for one end (23) of said outer element of cylindrical shape (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1907647A FR3098386A1 (en) | 2019-07-09 | 2019-07-09 | SPINE STABILIZATION SYSTEM |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1907647A FR3098386A1 (en) | 2019-07-09 | 2019-07-09 | SPINE STABILIZATION SYSTEM |
| FR1907647 | 2019-07-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR3098386A1 true FR3098386A1 (en) | 2021-01-15 |
Family
ID=68581926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1907647A Pending FR3098386A1 (en) | 2019-07-09 | 2019-07-09 | SPINE STABILIZATION SYSTEM |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR3098386A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0669109A1 (en) | 1994-02-28 | 1995-08-30 | SULZER Medizinaltechnik AG | Stabilizer for adjacent vertebrae |
| US20060111715A1 (en) * | 2004-02-27 | 2006-05-25 | Jackson Roger P | Dynamic stabilization assemblies, tool set and method |
| US20120029568A1 (en) * | 2006-01-09 | 2012-02-02 | Jackson Roger P | Spinal connecting members with radiused rigid sleeves and tensioned cords |
| US8292929B2 (en) * | 2007-03-16 | 2012-10-23 | Zimmer Spine, Inc. | Dynamic spinal stabilization system and method of using the same |
| US8475498B2 (en) * | 2007-01-18 | 2013-07-02 | Roger P. Jackson | Dynamic stabilization connecting member with cord connection |
-
2019
- 2019-07-09 FR FR1907647A patent/FR3098386A1/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0669109A1 (en) | 1994-02-28 | 1995-08-30 | SULZER Medizinaltechnik AG | Stabilizer for adjacent vertebrae |
| US20060111715A1 (en) * | 2004-02-27 | 2006-05-25 | Jackson Roger P | Dynamic stabilization assemblies, tool set and method |
| US20120029568A1 (en) * | 2006-01-09 | 2012-02-02 | Jackson Roger P | Spinal connecting members with radiused rigid sleeves and tensioned cords |
| US8475498B2 (en) * | 2007-01-18 | 2013-07-02 | Roger P. Jackson | Dynamic stabilization connecting member with cord connection |
| US8292929B2 (en) * | 2007-03-16 | 2012-10-23 | Zimmer Spine, Inc. | Dynamic spinal stabilization system and method of using the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2133766C (en) | Spinal osteosynthesis device | |
| EP1119305B1 (en) | Spinal osteosynthesis system with improved stability | |
| CA2304579C (en) | Screw and plate system for backbone osteosynthesis | |
| CA2330705A1 (en) | Backbone osteosynthesis system for anterior fixing | |
| EP1072228A1 (en) | Implantable intervertebral connector device | |
| FR2865378A1 (en) | Vertebral osteosynthesis equipment for immobilizing vertebras, has pin, bolt, nut, unit with structure and ring, forming assembly to connect rod to base part, where articulation of assembly is formed by flexible structure of elongated unit | |
| EP0722697A1 (en) | Spinal osteosynthesis device with median hook and vertebral anchoring supports | |
| FR2867057A1 (en) | Connecting element, useful for a spinal fixing system to connect two entire implantable connection bodies comprises a cable and a polymer envelope surrounding the cable | |
| FR2857850A1 (en) | Vertebral osteosynthesis material for immobilizing vertebras, has flange located such that coupling unit coupling connection rod and pedicle screw, allows articulated movement of proximal slug with respect to base part | |
| FR2887434A1 (en) | Surgical equipment for treatment of vertebrae, has rigid walls extending over each side of spinous process of treated vertebrae, to limit pivot movements of vertebrae about axis perpendicular to intervertebral disk | |
| WO1996027340A1 (en) | Spinal instruments, particularly for a rod | |
| EP1926444A1 (en) | Vertebral fixing system | |
| EP1330987A1 (en) | Interspinous vertebral implant | |
| FR2831420A1 (en) | APPARATUS FOR HOLDING THE SPIN WITH A PINCH ASSEMBLY | |
| FR2817929A1 (en) | DEVICE FOR FIXING A ROD AND A SPHERICAL SYMMETRY SCREW HEAD | |
| CA2740496C (en) | Spinal osteosynthesis system | |
| EP1536735A1 (en) | Linking element for dynamically stabilizing a spinal fixing system and spinal fixing system comprising same | |
| WO1994000062A1 (en) | Spinal therapy apparatus | |
| WO1997032533A1 (en) | Spinal osteosynthesis device | |
| FR3098386A1 (en) | SPINE STABILIZATION SYSTEM | |
| FR2775582A1 (en) | RACHIDIAN OSTEOSYNTHESIS BODY FOR FIXING A LIGAMENT | |
| EP3209228A1 (en) | Polyaxial vertebral anchoring device for straightening a vertebra | |
| FR3076199A1 (en) | SYSTEM FOR CONNECTING TWO PORTIONS OF BONES BETWEEN THEM WHEN ONE MUST MOVE IN RELATION TO THE OTHER | |
| WO2015092270A1 (en) | Spinal correction system | |
| FR2952522A1 (en) | Device for rectifying and stabilizing spinal surgically plantable column e.g. vertebrae, has bars connecting aligned implants on two sides of column when bars are integrated through connection elements, where bars are made of polyethylene |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PLFP | Fee payment |
Year of fee payment: 2 |
|
| PLSC | Publication of the preliminary search report |
Effective date: 20210115 |
|
| RX | Complete rejection |
Effective date: 20210903 |