FR2857850A1 - 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 - Google Patents
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 Download PDFInfo
- Publication number
- FR2857850A1 FR2857850A1 FR0403413A FR0403413A FR2857850A1 FR 2857850 A1 FR2857850 A1 FR 2857850A1 FR 0403413 A FR0403413 A FR 0403413A FR 0403413 A FR0403413 A FR 0403413A FR 2857850 A1 FR2857850 A1 FR 2857850A1
- Authority
- FR
- France
- Prior art keywords
- pin
- proximal pin
- material according
- proximal
- anchoring
- 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.)
- Granted
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
- A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
- A61B17/7037—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other wherein pivoting is blocked when the rod is clamped
-
- 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
- A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
-
- 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
- A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
- A61B17/7038—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other to a different extent in different directions, e.g. within one plane only
-
- 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
- A61B17/7041—Screws or hooks combined with longitudinal elements which do not contact vertebrae with single longitudinal rod offset laterally from single row of screws or hooks
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/0084—Material properties low friction
- A61B2017/00845—Material properties low friction of moving parts with respect to each other
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/03—Automatic limiting or abutting means, e.g. for safety
- A61B2090/037—Automatic limiting or abutting means, e.g. for safety with a frangible part, e.g. by reduced diameter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00179—Ceramics or ceramic-like structures
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00389—The prosthesis being coated or covered with a particular material
- A61F2310/00592—Coating or prosthesis-covering structure made of ceramics or of ceramic-like compounds
- A61F2310/00856—Coating or prosthesis-covering structure made of compounds based on metal nitrides
- A61F2310/0088—Coating made of titanium nitride
Abstract
Description
La présente invention concerne un matériel d'ostéosynthèse vertébrale.The present invention relates to a vertebral osteosynthesis material.
Un matériel d'ostéosynthèse vertébrale comprend généralement des organes d'ancrage osseux, tels que des vis pédiculaires et/ou des crochets, une ou deux tiges de liaison, destinées à être reliées à ces organes d'ancrage 5 et à être fixées aux vertèbres au moyen de ceux-ci, et des pièces de connexion de cette ou ces tiges de liaison à ces organes d'ancrage. Le matériel peut également comprendre des traverses réglables en longueur, qui relient transversalement deux tiges de liaison parallèles pour maintenir ces tiges l'une par rapport à l'autre. A vertebral osteosynthesis material generally comprises bone anchoring members, such as pedicle screws and / or hooks, one or two connecting rods, intended to be connected to these anchoring members and to be attached to the vertebrae. by means of these, and connecting pieces of this or these connecting rods to these anchoring members. The equipment may also include lengthwise adjustable cross members, which transversely connect two parallel connecting rods to maintain these rods relative to each other.
Dans un type de matériel existant, au moins un organe d'ancrage comprend une partie de base permettant son ancrage osseux et un pion proximal fileté articulé par rapport à cette partie de base, sur lequel peut être vissé un écrou. Chaque pièce de connexion comprend alors une partie arrondie destinée à entourer une tige de liaison et deux ailes parallèles 15 percées de trous. Ces ailes sont destinées à être engagées sur ledit pion proximal fileté et à être serrées, au moyen de cet écrou, contre une surface d'appui aménagée sur la partie de base, ce serrage provoquant le serrage de ladite partie arrondie autour de la tige de liaison et assurant ainsi l'immobilisation longitudinale de cette tige par rapport à l'organe d'ancrage. In an existing type of material, at least one anchoring member comprises a base portion allowing its bone anchoring and a threaded proximal pin articulated with respect to this base portion, on which a nut can be screwed. Each connecting piece then comprises a rounded portion intended to surround a connecting rod and two parallel wings 15 pierced with holes. These wings are intended to be engaged on said threaded proximal pin and to be clamped, by means of this nut, against a bearing surface arranged on the base part, this tightening causing the tightening of said rounded portion around the stem of connection and thus ensuring the longitudinal immobilization of this rod relative to the anchoring member.
Les matériels d'ostéosynthèse vertébrale existants sont destinés à immobiliser deux vertèbres l'une par rapport à l'autre, pour éliminer tout mouvement relatif de ces vertèbres, susceptible d'être douloureux, ou pour rétablir la position adéquate d'une vertèbre par rapport à l'autre. Pour l'obtention de cette immobilisation, ces matériels sont conçus pour assurer un 25 assemblage parfaitement rigide des tiges de liaison avec les organes d'ancrage. The existing vertebral osteosynthesis devices are intended to immobilize two vertebrae relative to each other, to eliminate any relative movement of these vertebrae, which may be painful, or to restore the proper position of a vertebra relative to to the other. In order to obtain this immobilization, these materials are designed to ensure a perfectly rigid connection of the connecting rods with the anchoring members.
Cet assemblage rigide peut cependant ne pas être souhaitable dans tous les cas. Il conduit en particulier à l'exercice de sollicitations importantes au niveau des zones osseuses d'ancrage desdits organes d'ancrage, ainsi qu'à 30 des sollicitations augmentées au niveau des articulations vertébrales situées de part et d'autre du ou des segments vertébraux traités, qui peuvent conduire à des dégénérescences précoces de ces articulations. This rigid assembly may, however, not be desirable in all cases. In particular, it leads to the exercise of major stresses at the anchoring bone zones of said anchoring members, as well as to increased stresses at the level of the vertebral joints situated on either side of the vertebral segment or segments. treated, which can lead to early degeneration of these joints.
La présente invention vise à remédier à ces inconvénients essentiels. The present invention aims to remedy these essential disadvantages.
Le matériel concerné comprend, de manière connue en soi, des organes d'ancrage osseux, tels que des vis pédiculaires et/ou des crochets, une ou deux tiges de liaison, destinées à être reliées à ces organes d'ancrage, et des pièces de connexion de cette ou ces tiges à ces organes d'ancrage; au moins 5 un des organes d'ancrage est du type "polyaxial", c'est-à-dire comprend un pion proximal articulé par rapport à une partie de base permettant l'ancrage osseux; des moyens de serrage permettent le montage de la pièce de connexion sur l'organe d'ancrage. The material concerned comprises, in a manner known per se, bone anchoring members, such as pedicle screws and / or hooks, one or two connecting rods, intended to be connected to these anchoring members, and parts connecting this or these rods to these anchoring members; at least one of the anchoring members is of the "polyaxial" type, i.e. includes a proximal pin articulated with respect to a base portion for bone anchoring; clamping means allow the connection piece to be mounted on the anchoring member.
Selon l'invention, le pion proximal comprend une surface formant une 10 butée axiale, contre laquelle la pièce de connexion devant être montée sur l'organe d'ancrage polyaxial est destinée à venir reposer, et lesdits moyens de serrage permettent de serrer cette pièce de connexion contre cette surface, ladite surface étant positionnée de telle sorte que la pièce de connexion, lorsqu'elle est serrée contre cette surface, laisse subsister la possibilité de 15 débattement articulé du pion proximal par rapport à ladite partie de base. According to the invention, the proximal pin comprises a surface forming an axial abutment, against which the connecting piece to be mounted on the polyaxial anchoring member is intended to rest, and said clamping means serve to clamp this piece. connection to said surface, said surface being positioned such that the connecting piece, when clamped against that surface, leaves the possibility of articulated movement of the proximal pin relative to said base portion.
Ainsi, dans le matériel selon l'invention, ladite pièce de connexion n'est pas immobilisée par rapport a l'organe d'ancrage mais peut jouer vis-à-vis de celui-ci, afin d'autoriser des mouvements limités des vertèbres. Les sollicitations exercées sur les zones osseuses d'ancrage de l'organe 20 d'ancrage sont ainsi notablement réduites, de même que les risques de sursollicitations au niveau des articulations vertébrales situées de part et d'autre du segment vertébral traité. Thus, in the material according to the invention, said connecting piece is not immobilized with respect to the anchoring member but can play with respect thereto, in order to allow limited movements of the vertebrae . The stresses exerted on the anchoring bone areas of the anchoring member 20 are thus significantly reduced, as is the risk of overstressing of the vertebral joints situated on either side of the treated vertebral segment.
La pièce de connexion comprend de préférence une partie arrondie destinée à entourer une tige de liaison et deux ailes parallèles percées de 25 trous, destinées à être engagées sur ledit pion proximal et à être serrées l'une vers l'autre de manière à réaliser le serrage de ladite partie arrondie autour dune tige de liaison. The connecting piece preferably comprises a rounded portion intended to surround a connecting rod and two parallel wings pierced with 25 holes intended to be engaged on said proximal pin and to be clamped towards each other so as to realize the tightening said rounded portion around a connecting rod.
Avantageusement, ledit organe d'ancrage polyaxial comprend au moins une pièce ou une partie de pièce à structure élastiquement déformable, 30 interposée, après montage, entre ladite pièce de connexion et ladite partie de base ou l'os, cette pièce ou une partie de pièce à structure élastiquement déformable permettant une mobilité de la pièce de connexion, et donc de la tige de liaison, par rapport à la partie de base, avec amortissement. Advantageously, said polyaxial anchoring member comprises at least one part or part part with an elastically deformable structure, interposed, after assembly, between said connecting part and said base part or the bone, this part or part of piece with an elastically deformable structure allowing mobility of the connecting piece, and therefore of the connecting rod, relative to the base part, with damping.
Ladite pièce ou partie de pièce à structure élastiquement déformable peut être conformée de manière à réaliser un amortissement du mouvement du pion proximal sur l'ensemble du débattement de ce pion, ou peut être conformée pour réaliser cet amortissement seulement dans les positions extrêmes de ce débattement. Said part or part of elastically deformable structure part may be shaped so as to achieve a damping of the movement of the proximal pin over the entire clearance of the pin, or may be shaped to achieve this damping only in the extreme positions of this clearance .
Selon une forme de réalisation possible de l'invention dans ce deuxième cas, ladite pièce ou partie de pièce à structure élastiquement déformable est formée par une paroi circulaire raccordée à la pièce de connexion, cette paroi comprenant au moins une fente transversale qui la traverse, aménagée sur un 10 côté de cette paroi selon une direction sensiblement perpendiculaire à celle qu'occupe une tige de liaison quand cette tige est engagée dans la pièce de connexion, cette fente permettant une réduction de l'épaisseur de cette paroi circulaire lorsqu'une contrainte est exercée sur cette paroi dans le sens axial, du côté où se trouve la fente. According to a possible embodiment of the invention in this second case, said part or part of elastically deformable structure part is formed by a circular wall connected to the connecting piece, this wall comprising at least one transverse slot which passes through it, arranged on one side of this wall in a direction substantially perpendicular to that occupied by a connecting rod when the rod is engaged in the connecting piece, this slot allowing a reduction in the thickness of this circular wall when a constraint is exerted on this wall in the axial direction, on the side where the slot is located.
Avantageusement, ladite paroi circulaire comprend deux fentes aménagées sur deux de ses côtés opposés, permettant un amortissement sur ces deux côtés. Advantageously, said circular wall comprises two slots arranged on two of its opposite sides, allowing damping on these two sides.
Le pion proximal et ladite surface formant butée axiale peuvent être conformés de manière à permettre le réglage de la position axiale de cette 20 surface par rapport au pion proximal, et cette surface peut être conformée pour réaliser un serrage de ladite pièce ou partie de pièce à structure élastiquement déformable entre elle et une surface d'appui contre laquelle repose cette pièce ou partie de pièce. The proximal pin and said axial abutment surface may be shaped to allow adjustment of the axial position of that surface relative to the proximal pin, and this surface may be shaped to effect a clamping of said piece or part of a piece. resiliently deformable structure between it and a bearing surface against which rests this part or part part.
Ladite surface formant butée axiale permet alors, selon le serrage qu'elle 25 réalise, de régler l'amortissement produit par ladite pièce ou partie de pièce à structure élastiquement déformable. Said axial abutment surface then allows, according to the clamping it performs, to adjust the damping produced by said part or part of elastically deformable structure part.
Selon une forme de mise en oeuvre de l'invention dans ce cas, le pion proximal est fileté et ladite surface formant butée axiale est réalisée sous forme d'une collerette à trou taraudé pouvant être vissée sur ce pion. According to one embodiment of the invention in this case, the proximal pin is threaded and said axial abutment surface is made in the form of a threaded-hole flange that can be screwed onto this pin.
Ladite surface d'appui contre laquelle repose la pièce ou partie de pièce à structure élastiquement déformable peut être une surface de la partie de base ou l'os vertébral. Said bearing surface against which the workpiece or part portion of resiliently deformable structure rests may be a surface of the base portion or the vertebral bone.
Avantageusement, les parois du pion proximal et de ladite partie de base qui glissent l'une contre l'autre lors du débattement de ce pion comportent un revêtement lisse et résistant, propre à résister à de très nombreux mouvements de glissement de ces parois l'une contre l'autre, tel qu'un revêtement en céramique ou en nitrure de titane. Advantageously, the walls of the proximal pin and of said base portion which slide against each other during the movement of this pin comprise a smooth and resistant coating, able to withstand very many sliding movements of these walls. against each other, such as a coating of ceramic or titanium nitride.
Lorsque l'articulation de ce pion proximal est réalisée par glissement de faces en forme de sphère ou de portions de sphère l'une contre l'autre, avantageusement, ces faces présentent un diamètre nettement supérieur à celui du pion proximal, notamment au moins du double du diamètre de ce 10 pion, afin d'augmenter la surface de contact de ses faces l'une avec l'autre. When the articulation of this proximal pin is made by sliding of sphere-shaped faces or spherical portions against each other, these faces advantageously have a diameter much greater than that of the proximal pin, in particular at least double the diameter of this peg, in order to increase the contact area of its faces with each other.
Les frottements s'exercent ainsi sur des surfaces augmentées, réduisant le risque d'usure desdites faces. The friction is thus exerted on increased surfaces, reducing the risk of wear of said faces.
L'invention sera bien comprise, et d'autres caractéristiques et avantages de celle-ci apparaîtront, en référence au dessin schématique annexé, 15 représentant, à titre d'exemples non limitatifs, deux formes de réalisation de pièces que comprend le matériel qu'elle concerne. The invention will be better understood, and other features and advantages thereof will appear, with reference to the appended schematic drawing, showing, by way of nonlimiting examples, two embodiments of parts that includes the material that it relates to.
La figure 1 est une de ces pièces, avant montage, selon une forme de réalisation; la figure 2 est une vue de ces pièces similaire à la figure 1, après 20 montage; la figure 3 est une vue de ces pièces similaire à la figure 2, selon une direction perpendiculaire à celle selon cette figure 2, dans une position; la figure 4 est une vue de ces pièces similaire à la figure 3, dans une deuxième position; la figure 5 est une vue de ces pièces similaire à la figure 3, dans une troisième position; la figure 6 est une vue des mêmes pièces en perspective, après mise en place de la vis dans une vertèbre et avant serrage définitif; la figure 7 est une vue de ces pièces similaires à la figure 6, après 30 serrage définitif, et la figure 8 est une vue desdites pièces, avant montage, selon une autre forme de réalisation. Figure 1 is one of these parts, before assembly, according to one embodiment; Figure 2 is a view of these parts similar to Figure 1, after mounting; Figure 3 is a view of these parts similar to Figure 2, in a direction perpendicular to that according to Figure 2, in a position; Figure 4 is a view of these parts similar to Figure 3, in a second position; Figure 5 is a view of these parts similar to Figure 3, in a third position; Figure 6 is a view of the same parts in perspective, after placing the screw in a vertebra and before final tightening; Figure 7 is a view of these parts similar to Figure 6, after final tightening, and Figure 8 is a view of said parts, before mounting, according to another embodiment.
La figure 1 représente une vis pédiculaire polyaxiale 1, une tige 2 de liaison de plusieurs de ces vis 1, une pièce 3 de connexion de cette tige 2 à une de ces vis 1 et un écrou 4 permettant d'assembler la tige de liaison 2 à cette vis 1. FIG. 1 represents a polyaxial pedicle screw 1, a connecting rod 2 of several of these screws 1, a connecting piece 3 of this rod 2 to one of these screws 1 and a nut 4 for assembling the connecting rod 2 to this screw 1.
La vis 1 comprend un pion proximal fileté 5 et un corps de vis distal fileté 6. Le pion 5 est destiné à recevoir la pièce 3 engagée sur lui et l'écrou 4 vissé sur lui tandis que le corps 6 est destiné à être inséré dans le pédicule d'une vertèbre, comme le montrent les figures 6 et 7. The screw 1 comprises a threaded proximal pin 5 and a threaded distal screw body 6. The pin 5 is intended to receive the part 3 engaged on it and the nut 4 screwed on it while the body 6 is intended to be inserted in the pedicle of a vertebra, as shown in Figures 6 and 7.
Le pion 5 présente une partie cylindrique filetée 10, une tête distale 10 élargie 11 et une collerette 12 formant une surface de butée. The pin 5 has a threaded cylindrical portion 10, an enlarged distal head 11 and a flange 12 forming a stop surface.
La partie 10 présente une zone 15 de diamètre réduit, permettant de casser sa portion proximale après mise en place et serrage de l'écrou 4, comme cela apparaît par comparaison des figures 2 et 3. Part 10 has an area 15 of reduced diameter, to break its proximal portion after placement and tightening of the nut 4, as appears by comparison of Figures 2 and 3.
La tête 11 présente un diamètre double du diamètre de la partie 10 et a 15 une forme de calotte sphérique. Cette tête 11 est destinée à être engagée dans une cavité proximale 16 que délimite la zone proximale du corps 6 et à être retenue dans cette cavité 16 par sertissage d'une paroi proximale 17 que présente ce corps 6. Après sertissage, la paroi 17 est façonnée de manière à présenter une forme proximale hémisphérique. Comme cela apparaît sur la 20 figure 1, les dimensions de la cavité 16 et de l'ouverture délimitée par la paroi 17 après sertissage pour le passage du pion 5 sont telles qu'un débattement multidirectionnel de ce pion 5 par rapport au corps 6 est possible. The head 11 has a double diameter of the diameter of the portion 10 and is shaped like a spherical cap. This head 11 is intended to be engaged in a proximal cavity 16 delimited by the proximal zone of the body 6 and to be retained in this cavity 16 by crimping a proximal wall 17 that this body 6 presents. After crimping, the wall 17 is shaped to have a hemispherical proximal shape. As shown in FIG. 1, the dimensions of the cavity 16 and the opening delimited by the wall 17 after crimping for the passage of the pin 5 are such that a multidirectional movement of this pin 5 with respect to the body 6 is possible.
Le corps 6 comprend également une collerette proximale 18, destinée à venir en butée contre le pédicule 100. Cette collerette 18 présente plusieurs 25 encoches radiales 19, notamment quatre encoches à 90 les unes des autres, permettant le maintien du corps 6 en rotation pendant le serrage de l'écrou 4. The body 6 also comprises a proximal flange 18 intended to abut against the pedicle 100. This flange 18 has a plurality of radial notches 19, in particular four notches 90 of each other, allowing the body 6 to be held in rotation during the tightening the nut 4.
La tige de liaison 2 est cylindrique et présente une rigidité telle qu'elle permet le maintien de plusieurs vertèbres les unes par rapport aux autres. The connecting rod 2 is cylindrical and has a rigidity such that it allows the maintenance of several vertebrae relative to each other.
Cette tige 2 est toutefois déformable de manière à pouvoir être conformée en 30 fonction de la correction du rachis à réaliser. This rod 2 is, however, deformable so that it can be shaped according to the correction of the spine to be performed.
La pièce de connexion 3 comprend une partie arrondie 20 destinée à entourer la tige de liaison 2 et deux ailes latérales parallèles 21 percées de trous pour l'engagement de la pièce 3 sur le pion 5. Ces ailes 21 sont mutuellement distantes de telle sorte que, dans une position d'écartement, la tige 2 puisse être insérée et puisse coulisser dans la partie 20, et que, dans une position de rapprochement que leur confère le serrage de l'écrou 4, elles serrent la partie 20 autour de la tige 2, immobilisant cette dernière par rapport à la pièce 3. The connection piece 3 comprises a rounded portion 20 intended to surround the connecting rod 2 and two parallel lateral wings 21 pierced with holes for the engagement of the piece 3 on the pin 5. These wings 21 are mutually distant so that in a spacing position, the rod 2 can be inserted and slidable in the part 20, and that, in a position of approximation that confers on them the tightening of the nut 4, they tighten the part 20 around the rod 2, immobilizing the latter with respect to the piece 3.
Comme le montrent les figures 1 et 2, l'aile 21 proximale présente une cuvette proximale 25 de forme adaptée à la prise d'appui de l'écrou 4, tandis que l'aile 21 distale comprend une cavité circulaire 26 permettant l'engagement de cette aile sur la collerette 12. As shown in FIGS. 1 and 2, the proximal wing 21 has a proximal bowl 25 of a shape adapted to support the nut 4, whereas the distal wing 21 comprises a circular cavity 26 enabling engagement. of this wing on the collar 12.
Cette aile 21 distale comprend en outre une paroi circulaire 27 solidaire d'elle. Cette paroi 27 a une hauteur inférieure à celle de la paroi 17, et délimite une face sphérique concave interne 28 de diamètre supérieur au diamètre de cette paroi 17. This distal wing 21 further comprises a circular wall 27 integral with it. This wall 27 has a height less than that of the wall 17, and delimits an inner concave spherical face 28 of diameter greater than the diameter of this wall 17.
En outre, deux fentes transversales 29 sont aménagées dans cette paroi 15 27, sur deux côtés opposés de la paroi 27, et selon une direction sensiblement perpendiculaire à celle qu'occupe la tige de liaison 2 quand cette tige est engagée dans la partie arrondie 20. Chaque fente 29 s'étend angulairement sur environ 120 de la paroi 27 et se termine par une zone élargie 30 en forme de cercle. In addition, two transverse slots 29 are formed in this wall 27, on two opposite sides of the wall 27, and in a direction substantially perpendicular to that occupied by the connecting rod 2 when the rod is engaged in the rounded portion 20 Each slot 29 extends angularly over approximately 120 of the wall 27 and ends with an enlarged zone 30 in the form of a circle.
Comme cela se comprend en référence à la figure 5, les portions distales de la paroi 27 délimitées par les fentes 29 ont, au niveau de ces zones arrondies 30, une hauteur réduite, telle que ces portions peuvent fléchir au niveau de ces zones 30, permettant ainsi une réduction de la hauteur de la paroi 27. As can be understood with reference to FIG. 5, the distal portions of the wall 27 delimited by the slots 29 have, at these rounded zones 30, a reduced height, such that these portions can flex at these zones 30, thus allowing a reduction in the height of the wall 27.
En pratique, le nombre de vis 1 nécessaire au traitement à réaliser est mis en place dans les pédicules 100 des vertèbres concernées, puis les pièces de connexion 3, avec la tige 2 engagée dans les parties 20, sont placées sur les pions 5, jusqu'à engagement des collerettes 12 dans les cavités 26. Les écrous 4 sont ensuite serrés pour réaliser l'immobilisation de la 30 tige 2 par rapport aux pièces 3 et les portions proximales des pions 5 sont sectionnées. In practice, the number of screws 1 necessary for the treatment to be performed is placed in the pedicles 100 of the vertebrae concerned, then the connecting pieces 3, with the rod 2 engaged in the parts 20, are placed on the pins 5, until The nuts 4 are then tightened to immobilize the rod 2 relative to the parts 3 and the proximal portions of the pins 5 are cut off.
Dans cette position de serrage de chaque pièce 3 contre la collerette 12 correspondante, la paroi 27 ne repose contre la paroi 17 que par une surface très réduite, comme le montre la figure 2. Ce serrage laisse subsister la possibilité de débattement articulé du pion proximal 5 par rapport au corps de vis 6, ce débattement étant libre tant que la paroi 27 n'est pas venue en butée contre le corps 6 (cf. figure 4) puis étant possible avec déformation de la paroi 5 27 au-delà, réalisant un amortissement du mouvement du pion 5 dans les angles maximaux de débattement de ce pion (cf. figure 5). La limite du débattement possible de ce dernier correspond à la venue en contact des bords de la paroi 27 délimitant les fentes 29. In this clamping position of each piece 3 against the corresponding collar 12, the wall 27 rests against the wall 17 only by a very small surface, as shown in FIG. 2. This clamping allows the possibility of articulated movement of the proximal pin to remain. 5 with respect to the screw body 6, this deflection being free as long as the wall 27 has not come into abutment against the body 6 (see FIG. 4) and then being possible with deformation of the wall 5 27 beyond, realizing damping the movement of the pin 5 in the maximum angles of movement of this pin (see FIG. 5). The limit of the possible deflection of the latter corresponds to the coming into contact of the edges of the wall 27 delimiting the slots 29.
Grâce au diamètre de sa face 28, supérieur au diamètre de la paroi 17, 10 la paroi 27 ne fait pas obstacle au débattement du pion 5. Due to the diameter of its face 28, greater than the diameter of the wall 17, the wall 27 does not hinder the movement of the pin 5.
Les zones de glissement de la tête 11 contre la paroi 17 et de la face 28 contre la paroi 17 peuvent comporter un revêtement lisse et résistant, propre à résister à de très nombreux mouvements de glissement de ces parois l'une contre l'autre, tel qu'un revêtement en céramique ou en nitrure de titane. The sliding zones of the head 11 against the wall 17 and the face 28 against the wall 17 may comprise a smooth and resistant coating, able to withstand very many sliding movements of these walls against each other, such as a coating of ceramic or titanium nitride.
La figure 8 représente des pièces 2 à 5 identiques ou similaires à celles décrites en référence aux figures 1 et 2, les pièces se retrouvant de manière identique ou similaire étant désignées par les mêmes références numériques. FIG. 8 represents parts 2 to 5 that are identical or similar to those described with reference to FIGS. 1 and 2, the parts that are identical or similar being designated by the same reference numerals.
Dans ce cas, la pièce 3 est dépourvue de la paroi 27, et le matériel comprend, pour au moins un organe d'ancrage 1, une pièce 31 sous forme 20 d'une rondelle en matériau à structure élastiquement déformable, notamment en silicone ou en PMMA, et une rondelle rigide 50, notamment métallique, présentant un alésage taraudé permettant son vissage sur le pion 5 jusqu'à serrer la pièce 31 entre elle et la partie 6 de la vis. In this case, the part 3 is devoid of the wall 27, and the material comprises, for at least one anchoring member 1, a part 31 in the form of a washer made of material with an elastically deformable structure, in particular made of silicone or PMMA, and a rigid washer 50, in particular metal, having a threaded bore allowing its screwing on the pin 5 to clamp the piece 31 between it and the portion 6 of the screw.
La rondelle 50 peut être vissée sur le pion 5 jusqu'à réaliser un serrage 25 de la pièce 31 en fonction de d'un amortissement recherché pour le débattement du pion 5. Une fois ce serrage obtenu, la pièce 3, avec la tige 2 engagée en elle, est mise en place sur le pion 5 puis l'écrou 4 est serré de manière à immobiliser la tige 2 par rapport à la pièce 3. The washer 50 can be screwed onto the peg 5 until a clamp 25 of the piece 31 is made as a function of a desired damping for the clearance of the peg 5. Once this clamping has been obtained, the piece 3 with the rod 2 engaged in it, is placed on the pin 5 and the nut 4 is tightened so as to immobilize the rod 2 relative to the piece 3.
Comme cela apparaît de ce qui précède, I'invention fournit un matériel 30 d'ostéosynthèse vertébrale permettant un jeu de la pièce de connexion 3, et donc de la tige de liaison 2, par rapport au corps 6 d'ancrage à la vertèbre, afin d'autoriser des mouvements limités des vertèbres traitées. Les sollicitations exercées sur les zones osseuses d'ancrage de l'organe d'ancrage sont ainsi notablement réduites, de même que les risques de sursollicitations au niveau des articulations vertébrales situées de part et d'autre du segment vertébral traité. As is apparent from the foregoing, the invention provides a vertebral osteosynthesis material 30 allowing a play of the connecting piece 3, and thus of the connecting rod 2, relative to the anchoring body 6 to the vertebra, to allow limited movements of the treated vertebrae. The stresses exerted on the anchoring bone areas of the anchoring member are thus significantly reduced, as well as the risk of overstressing of the vertebral joints located on either side of the treated vertebral segment.
Il va de soi que l'invention n'est pas limitée à la forme de réalisation 5 décrite ci-dessus à titre d'exemple mais qu'elle s'étend à toutes les formes de réalisations couvertes par les revendications ci-annexées. Ainsi, l'on ne sortirait pas du cadre de l'invention en remplaçant la paroi 27 par une rondelle en matériau élastique ou à structure élastique, par exemple sous forme de ressort. It goes without saying that the invention is not limited to the embodiment described above by way of example but that it extends to all embodiments covered by the appended claims. Thus, it would not depart from the scope of the invention by replacing the wall 27 with a washer of elastic material or elastic structure, for example in the form of a spring.
Claims (10)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0403413A FR2857850B1 (en) | 2003-06-27 | 2004-04-01 | MATERIAL OF VERTEBRAL OSTEOSYNTHESIS |
EP04744114A EP1653873B1 (en) | 2003-06-27 | 2004-06-24 | Vertebral osteosynthesis equipment |
US10/561,509 US7731734B2 (en) | 2003-06-27 | 2004-06-24 | Vertebral osteosynthesis equipment |
PCT/IB2004/002463 WO2005000137A1 (en) | 2003-06-27 | 2004-06-24 | Vertebral osteosynthesis equipment |
AT04744114T ATE511803T1 (en) | 2003-06-27 | 2004-06-24 | DEVICE FOR OSTEOSYNTHESIS OF THE SPINE |
PCT/IB2004/002429 WO2005000135A1 (en) | 2003-06-27 | 2004-06-24 | Vertebral osteosynthesis equipment |
PT04744114T PT1653873E (en) | 2003-06-27 | 2004-06-24 | Vertebral osteosynthesis equipment |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0307776A FR2856578B1 (en) | 2003-06-27 | 2003-06-27 | MATERIAL OF VERTEBRAL OSTEOSYNTHESIS |
FR0400747A FR2865377B1 (en) | 2004-01-27 | 2004-01-27 | MATERIAL OF VERTEBRAL OSTEOSYNTHESIS |
FR0403413A FR2857850B1 (en) | 2003-06-27 | 2004-04-01 | MATERIAL OF VERTEBRAL OSTEOSYNTHESIS |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2857850A1 true FR2857850A1 (en) | 2005-01-28 |
FR2857850B1 FR2857850B1 (en) | 2005-08-19 |
Family
ID=33568245
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0403413A Expired - Fee Related FR2857850B1 (en) | 2003-06-27 | 2004-04-01 | MATERIAL OF VERTEBRAL OSTEOSYNTHESIS |
Country Status (3)
Country | Link |
---|---|
AT (1) | ATE511803T1 (en) |
FR (1) | FR2857850B1 (en) |
PT (1) | PT1653873E (en) |
Cited By (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009102656A1 (en) * | 2008-02-12 | 2009-08-20 | Warsaw Orthopedic, Inc. | Pedicle mounted devices for spinal deformity correction |
US9198695B2 (en) | 2010-08-30 | 2015-12-01 | Zimmer Spine, Inc. | Polyaxial pedicle screw |
US9629669B2 (en) | 2004-11-23 | 2017-04-25 | Roger P. Jackson | Spinal fixation tool set and method |
US9636151B2 (en) | 2004-02-27 | 2017-05-02 | Roger P Jackson | Orthopedic implant rod reduction tool set and method |
US9662143B2 (en) | 2004-02-27 | 2017-05-30 | Roger P Jackson | Dynamic fixation assemblies with inner core and outer coil-like member |
US9662151B2 (en) | 2004-02-27 | 2017-05-30 | Roger P Jackson | Orthopedic implant rod reduction tool set and method |
US9668771B2 (en) | 2009-06-15 | 2017-06-06 | Roger P Jackson | Soft stabilization assemblies with off-set connector |
USRE46431E1 (en) | 2003-06-18 | 2017-06-13 | Roger P Jackson | Polyaxial bone anchor with helical capture connection, insert and dual locking assembly |
US9717533B2 (en) | 2013-12-12 | 2017-08-01 | Roger P. Jackson | Bone anchor closure pivot-splay control flange form guide and advancement structure |
US9717534B2 (en) | 2009-06-15 | 2017-08-01 | Roger P. Jackson | Polyaxial bone anchor with pop-on shank and friction fit retainer with low profile edge lock |
US9743957B2 (en) | 2004-11-10 | 2017-08-29 | Roger P. Jackson | Polyaxial bone screw with shank articulation pressure insert and method |
US9907574B2 (en) | 2008-08-01 | 2018-03-06 | Roger P. Jackson | Polyaxial bone anchors with pop-on shank, friction fit fully restrained retainer, insert and tool receiving features |
US9918751B2 (en) | 2004-02-27 | 2018-03-20 | Roger P. Jackson | Tool system for dynamic spinal implants |
US9918745B2 (en) | 2009-06-15 | 2018-03-20 | Roger P. Jackson | Polyaxial bone anchor with pop-on shank and winged insert with friction fit compressive collet |
US9980753B2 (en) | 2009-06-15 | 2018-05-29 | Roger P Jackson | pivotal anchor with snap-in-place insert having rotation blocking extensions |
US10039577B2 (en) | 2004-11-23 | 2018-08-07 | Roger P Jackson | Bone anchor receiver with horizontal radiused tool attachment structures and parallel planar outer surfaces |
US10039578B2 (en) | 2003-12-16 | 2018-08-07 | DePuy Synthes Products, Inc. | Methods and devices for minimally invasive spinal fixation element placement |
US10058354B2 (en) | 2013-01-28 | 2018-08-28 | Roger P. Jackson | Pivotal bone anchor assembly with frictional shank head seating surfaces |
US10064658B2 (en) | 2014-06-04 | 2018-09-04 | Roger P. Jackson | Polyaxial bone anchor with insert guides |
US10076361B2 (en) | 2005-02-22 | 2018-09-18 | Roger P. Jackson | Polyaxial bone screw with spherical capture, compression and alignment and retention structures |
US10194951B2 (en) | 2005-05-10 | 2019-02-05 | Roger P. Jackson | Polyaxial bone anchor with compound articulation and pop-on shank |
US10258382B2 (en) | 2007-01-18 | 2019-04-16 | Roger P. Jackson | Rod-cord dynamic connection assemblies with slidable bone anchor attachment members along the cord |
US10299839B2 (en) | 2003-12-16 | 2019-05-28 | Medos International Sárl | Percutaneous access devices and bone anchor assemblies |
US10349983B2 (en) | 2003-05-22 | 2019-07-16 | Alphatec Spine, Inc. | Pivotal bone anchor assembly with biased bushing for pre-lock friction fit |
US10363070B2 (en) | 2009-06-15 | 2019-07-30 | Roger P. Jackson | Pivotal bone anchor assemblies with pressure inserts and snap on articulating retainers |
US10383660B2 (en) | 2007-05-01 | 2019-08-20 | Roger P. Jackson | Soft stabilization assemblies with pretensioned cords |
US10470801B2 (en) | 2007-01-18 | 2019-11-12 | Roger P. Jackson | Dynamic spinal stabilization with rod-cord longitudinal connecting members |
US10485588B2 (en) | 2004-02-27 | 2019-11-26 | Nuvasive, Inc. | Spinal fixation tool attachment structure |
US10729469B2 (en) | 2006-01-09 | 2020-08-04 | Roger P. Jackson | Flexible spinal stabilization assembly with spacer having off-axis core member |
US10792074B2 (en) | 2007-01-22 | 2020-10-06 | Roger P. Jackson | Pivotal bone anchor assemly with twist-in-place friction fit insert |
US10952777B2 (en) | 2003-04-09 | 2021-03-23 | Roger P. Jackson | Pivotal bone screw assembly with receiver having threaded open channel and lower opening |
US11147597B2 (en) | 2004-02-27 | 2021-10-19 | Roger P Jackson | Dynamic spinal stabilization assemblies, tool set and method |
US11147591B2 (en) | 2004-11-10 | 2021-10-19 | Roger P Jackson | Pivotal bone anchor receiver assembly with threaded closure |
US11229457B2 (en) | 2009-06-15 | 2022-01-25 | Roger P. Jackson | Pivotal bone anchor assembly with insert tool deployment |
US11234745B2 (en) | 2005-07-14 | 2022-02-01 | Roger P. Jackson | Polyaxial bone screw assembly with partially spherical screw head and twist in place pressure insert |
US11419642B2 (en) | 2003-12-16 | 2022-08-23 | Medos International Sarl | Percutaneous access devices and bone anchor assemblies |
Families Citing this family (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8377100B2 (en) | 2000-12-08 | 2013-02-19 | Roger P. Jackson | Closure for open-headed medical implant |
US6726689B2 (en) | 2002-09-06 | 2004-04-27 | Roger P. Jackson | Helical interlocking mating guide and advancement structure |
US8292926B2 (en) | 2005-09-30 | 2012-10-23 | Jackson Roger P | Dynamic stabilization connecting member with elastic core and outer sleeve |
US8353932B2 (en) | 2005-09-30 | 2013-01-15 | Jackson Roger P | Polyaxial bone anchor assembly with one-piece closure, pressure insert and plastic elongate member |
US8282673B2 (en) | 2002-09-06 | 2012-10-09 | Jackson Roger P | Anti-splay medical implant closure with multi-surface removal aperture |
US8257402B2 (en) | 2002-09-06 | 2012-09-04 | Jackson Roger P | Closure for rod receiving orthopedic implant having left handed thread removal |
US8876868B2 (en) | 2002-09-06 | 2014-11-04 | Roger P. Jackson | Helical guide and advancement flange with radially loaded lip |
US6716214B1 (en) | 2003-06-18 | 2004-04-06 | Roger P. Jackson | Polyaxial bone screw with spline capture connection |
US8137386B2 (en) | 2003-08-28 | 2012-03-20 | Jackson Roger P | Polyaxial bone screw apparatus |
US8926670B2 (en) | 2003-06-18 | 2015-01-06 | Roger P. Jackson | Polyaxial bone screw assembly |
US8257398B2 (en) | 2003-06-18 | 2012-09-04 | Jackson Roger P | Polyaxial bone screw with cam capture |
US8377102B2 (en) | 2003-06-18 | 2013-02-19 | Roger P. Jackson | Polyaxial bone anchor with spline capture connection and lower pressure insert |
US8398682B2 (en) | 2003-06-18 | 2013-03-19 | Roger P. Jackson | Polyaxial bone screw assembly |
US8092500B2 (en) | 2007-05-01 | 2012-01-10 | Jackson Roger P | Dynamic stabilization connecting member with floating core, compression spacer and over-mold |
US7651502B2 (en) | 2004-09-24 | 2010-01-26 | Jackson Roger P | Spinal fixation tool set and method for rod reduction and fastener insertion |
JP2008519656A (en) | 2004-11-10 | 2008-06-12 | ロジャー・ピー・ジャクソン | Helical guide and forward flange with break extension |
US8926672B2 (en) | 2004-11-10 | 2015-01-06 | Roger P. Jackson | Splay control closure for open bone anchor |
US9216041B2 (en) | 2009-06-15 | 2015-12-22 | Roger P. Jackson | Spinal connecting members with tensioned cords and rigid sleeves for engaging compression inserts |
US9168069B2 (en) | 2009-06-15 | 2015-10-27 | Roger P. Jackson | Polyaxial bone anchor with pop-on shank and winged insert with lower skirt for engaging a friction fit retainer |
US8308782B2 (en) | 2004-11-23 | 2012-11-13 | Jackson Roger P | Bone anchors with longitudinal connecting member engaging inserts and closures for fixation and optional angulation |
US7875065B2 (en) | 2004-11-23 | 2011-01-25 | Jackson Roger P | Polyaxial bone screw with multi-part shank retainer and pressure insert |
US8444681B2 (en) | 2009-06-15 | 2013-05-21 | Roger P. Jackson | Polyaxial bone anchor with pop-on shank, friction fit retainer and winged insert |
US7901437B2 (en) | 2007-01-26 | 2011-03-08 | Jackson Roger P | Dynamic stabilization member with molded connection |
US8105368B2 (en) | 2005-09-30 | 2012-01-31 | Jackson Roger P | Dynamic stabilization connecting member with slitted core and outer sleeve |
US8366745B2 (en) | 2007-05-01 | 2013-02-05 | Jackson Roger P | Dynamic stabilization assembly having pre-compressed spacers with differential displacements |
US8012177B2 (en) | 2007-02-12 | 2011-09-06 | Jackson Roger P | Dynamic stabilization assembly with frusto-conical connection |
US7942910B2 (en) | 2007-05-16 | 2011-05-17 | Ortho Innovations, Llc | Polyaxial bone screw |
US8197518B2 (en) | 2007-05-16 | 2012-06-12 | Ortho Innovations, Llc | Thread-thru polyaxial pedicle screw system |
US7947065B2 (en) | 2008-11-14 | 2011-05-24 | Ortho Innovations, Llc | Locking polyaxial ball and socket fastener |
US7942909B2 (en) | 2009-08-13 | 2011-05-17 | Ortho Innovations, Llc | Thread-thru polyaxial pedicle screw system |
US7942911B2 (en) | 2007-05-16 | 2011-05-17 | Ortho Innovations, Llc | Polyaxial bone screw |
US7951173B2 (en) | 2007-05-16 | 2011-05-31 | Ortho Innovations, Llc | Pedicle screw implant system |
AU2008263148C1 (en) | 2007-05-31 | 2012-05-24 | Roger P. Jackson | Dynamic stabilization connecting member with pre-tensioned solid core |
US8911477B2 (en) | 2007-10-23 | 2014-12-16 | Roger P. Jackson | Dynamic stabilization member with end plate support and cable core extension |
US8075603B2 (en) | 2008-11-14 | 2011-12-13 | Ortho Innovations, Llc | Locking polyaxial ball and socket fastener |
US8998959B2 (en) | 2009-06-15 | 2015-04-07 | Roger P Jackson | Polyaxial bone anchors with pop-on shank, fully constrained friction fit retainer and lock and release insert |
CA2774471A1 (en) | 2009-10-05 | 2011-04-14 | James L. Surber | Polyaxial bone anchor with non-pivotable retainer and pop-on shank, some with friction fit |
AU2011299558A1 (en) | 2010-09-08 | 2013-05-02 | Roger P. Jackson | Dynamic stabilization members with elastic and inelastic sections |
US8911479B2 (en) | 2012-01-10 | 2014-12-16 | Roger P. Jackson | Multi-start closures for open implants |
US8911478B2 (en) | 2012-11-21 | 2014-12-16 | Roger P. Jackson | Splay control closure for open bone anchor |
US8852239B2 (en) | 2013-02-15 | 2014-10-07 | Roger P Jackson | Sagittal angle screw with integral shank and receiver |
US9453526B2 (en) | 2013-04-30 | 2016-09-27 | Degen Medical, Inc. | Bottom-loading anchor assembly |
US9566092B2 (en) | 2013-10-29 | 2017-02-14 | Roger P. Jackson | Cervical bone anchor with collet retainer and outer locking sleeve |
US9451993B2 (en) | 2014-01-09 | 2016-09-27 | Roger P. Jackson | Bi-radial pop-on cervical bone anchor |
US9597119B2 (en) | 2014-06-04 | 2017-03-21 | Roger P. Jackson | Polyaxial bone anchor with polymer sleeve |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0242708A2 (en) * | 1986-04-25 | 1987-10-28 | Jürgen Prof. Dr. Harms | Pedicle screw |
WO1991006254A1 (en) * | 1989-11-03 | 1991-05-16 | Lutz Biedermann | Pedicel screw, and correction and retaining device with said pedicel screw |
FR2697742A1 (en) * | 1992-11-06 | 1994-05-13 | Biomat | Osteosynthesis device for spinal consolidation. |
US5735851A (en) * | 1996-10-09 | 1998-04-07 | Third Millennium Engineering, Llc | Modular polyaxial locking pedicle screw |
WO1998055038A1 (en) * | 1997-06-03 | 1998-12-10 | Jean Taylor | Multidirectional adaptable vertebral osteosynthesis device with reduced space requirement |
-
2004
- 2004-04-01 FR FR0403413A patent/FR2857850B1/en not_active Expired - Fee Related
- 2004-06-24 AT AT04744114T patent/ATE511803T1/en not_active IP Right Cessation
- 2004-06-24 PT PT04744114T patent/PT1653873E/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0242708A2 (en) * | 1986-04-25 | 1987-10-28 | Jürgen Prof. Dr. Harms | Pedicle screw |
WO1991006254A1 (en) * | 1989-11-03 | 1991-05-16 | Lutz Biedermann | Pedicel screw, and correction and retaining device with said pedicel screw |
FR2697742A1 (en) * | 1992-11-06 | 1994-05-13 | Biomat | Osteosynthesis device for spinal consolidation. |
US5735851A (en) * | 1996-10-09 | 1998-04-07 | Third Millennium Engineering, Llc | Modular polyaxial locking pedicle screw |
WO1998055038A1 (en) * | 1997-06-03 | 1998-12-10 | Jean Taylor | Multidirectional adaptable vertebral osteosynthesis device with reduced space requirement |
Cited By (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10952777B2 (en) | 2003-04-09 | 2021-03-23 | Roger P. Jackson | Pivotal bone screw assembly with receiver having threaded open channel and lower opening |
US10349983B2 (en) | 2003-05-22 | 2019-07-16 | Alphatec Spine, Inc. | Pivotal bone anchor assembly with biased bushing for pre-lock friction fit |
USRE46431E1 (en) | 2003-06-18 | 2017-06-13 | Roger P Jackson | Polyaxial bone anchor with helical capture connection, insert and dual locking assembly |
US11419642B2 (en) | 2003-12-16 | 2022-08-23 | Medos International Sarl | Percutaneous access devices and bone anchor assemblies |
US10039578B2 (en) | 2003-12-16 | 2018-08-07 | DePuy Synthes Products, Inc. | Methods and devices for minimally invasive spinal fixation element placement |
US10299839B2 (en) | 2003-12-16 | 2019-05-28 | Medos International Sárl | Percutaneous access devices and bone anchor assemblies |
US11426216B2 (en) | 2003-12-16 | 2022-08-30 | DePuy Synthes Products, Inc. | Methods and devices for minimally invasive spinal fixation element placement |
US11291480B2 (en) | 2004-02-27 | 2022-04-05 | Nuvasive, Inc. | Spinal fixation tool attachment structure |
US9662151B2 (en) | 2004-02-27 | 2017-05-30 | Roger P Jackson | Orthopedic implant rod reduction tool set and method |
US9662143B2 (en) | 2004-02-27 | 2017-05-30 | Roger P Jackson | Dynamic fixation assemblies with inner core and outer coil-like member |
US10485588B2 (en) | 2004-02-27 | 2019-11-26 | Nuvasive, Inc. | Spinal fixation tool attachment structure |
US11147597B2 (en) | 2004-02-27 | 2021-10-19 | Roger P Jackson | Dynamic spinal stabilization assemblies, tool set and method |
US9636151B2 (en) | 2004-02-27 | 2017-05-02 | Roger P Jackson | Orthopedic implant rod reduction tool set and method |
US9918751B2 (en) | 2004-02-27 | 2018-03-20 | Roger P. Jackson | Tool system for dynamic spinal implants |
US11648039B2 (en) | 2004-02-27 | 2023-05-16 | Roger P. Jackson | Spinal fixation tool attachment structure |
US9743957B2 (en) | 2004-11-10 | 2017-08-29 | Roger P. Jackson | Polyaxial bone screw with shank articulation pressure insert and method |
US11147591B2 (en) | 2004-11-10 | 2021-10-19 | Roger P Jackson | Pivotal bone anchor receiver assembly with threaded closure |
US10039577B2 (en) | 2004-11-23 | 2018-08-07 | Roger P Jackson | Bone anchor receiver with horizontal radiused tool attachment structures and parallel planar outer surfaces |
US9629669B2 (en) | 2004-11-23 | 2017-04-25 | Roger P. Jackson | Spinal fixation tool set and method |
US11389214B2 (en) | 2004-11-23 | 2022-07-19 | Roger P. Jackson | Spinal fixation tool set and method |
USRE47551E1 (en) | 2005-02-22 | 2019-08-06 | Roger P. Jackson | Polyaxial bone screw with spherical capture, compression insert and alignment and retention structures |
US10076361B2 (en) | 2005-02-22 | 2018-09-18 | Roger P. Jackson | Polyaxial bone screw with spherical capture, compression and alignment and retention structures |
US10194951B2 (en) | 2005-05-10 | 2019-02-05 | Roger P. Jackson | Polyaxial bone anchor with compound articulation and pop-on shank |
US11234745B2 (en) | 2005-07-14 | 2022-02-01 | Roger P. Jackson | Polyaxial bone screw assembly with partially spherical screw head and twist in place pressure insert |
US10729469B2 (en) | 2006-01-09 | 2020-08-04 | Roger P. Jackson | Flexible spinal stabilization assembly with spacer having off-axis core member |
US10258382B2 (en) | 2007-01-18 | 2019-04-16 | Roger P. Jackson | Rod-cord dynamic connection assemblies with slidable bone anchor attachment members along the cord |
US10470801B2 (en) | 2007-01-18 | 2019-11-12 | Roger P. Jackson | Dynamic spinal stabilization with rod-cord longitudinal connecting members |
US10792074B2 (en) | 2007-01-22 | 2020-10-06 | Roger P. Jackson | Pivotal bone anchor assemly with twist-in-place friction fit insert |
US10383660B2 (en) | 2007-05-01 | 2019-08-20 | Roger P. Jackson | Soft stabilization assemblies with pretensioned cords |
WO2009102656A1 (en) * | 2008-02-12 | 2009-08-20 | Warsaw Orthopedic, Inc. | Pedicle mounted devices for spinal deformity correction |
US8221426B2 (en) | 2008-02-12 | 2012-07-17 | Warsaw Orthopedic, Inc. | Methods and devices for deformity correction |
US9907574B2 (en) | 2008-08-01 | 2018-03-06 | Roger P. Jackson | Polyaxial bone anchors with pop-on shank, friction fit fully restrained retainer, insert and tool receiving features |
US9717534B2 (en) | 2009-06-15 | 2017-08-01 | Roger P. Jackson | Polyaxial bone anchor with pop-on shank and friction fit retainer with low profile edge lock |
US11229457B2 (en) | 2009-06-15 | 2022-01-25 | Roger P. Jackson | Pivotal bone anchor assembly with insert tool deployment |
US9668771B2 (en) | 2009-06-15 | 2017-06-06 | Roger P Jackson | Soft stabilization assemblies with off-set connector |
US9918745B2 (en) | 2009-06-15 | 2018-03-20 | Roger P. Jackson | Polyaxial bone anchor with pop-on shank and winged insert with friction fit compressive collet |
US10363070B2 (en) | 2009-06-15 | 2019-07-30 | Roger P. Jackson | Pivotal bone anchor assemblies with pressure inserts and snap on articulating retainers |
US9980753B2 (en) | 2009-06-15 | 2018-05-29 | Roger P Jackson | pivotal anchor with snap-in-place insert having rotation blocking extensions |
US10182844B2 (en) | 2010-08-30 | 2019-01-22 | Zimmer Spine, Inc. | Polyaxial pedicle screw |
US11166751B2 (en) | 2010-08-30 | 2021-11-09 | Zimmer Spine, Inc. | Polyaxial pedicle screw |
US10945766B2 (en) | 2010-08-30 | 2021-03-16 | Zimmer Spine, Inc. | Polyaxial pedicle screw |
US10925646B2 (en) | 2010-08-30 | 2021-02-23 | Zimmer Spine, Inc. | Polyaxial pedicle screw |
US9636148B2 (en) | 2010-08-30 | 2017-05-02 | Zimmer Spine, Inc. | Polyaxial pedicle screw |
US9198695B2 (en) | 2010-08-30 | 2015-12-01 | Zimmer Spine, Inc. | Polyaxial pedicle screw |
US10058354B2 (en) | 2013-01-28 | 2018-08-28 | Roger P. Jackson | Pivotal bone anchor assembly with frictional shank head seating surfaces |
US9717533B2 (en) | 2013-12-12 | 2017-08-01 | Roger P. Jackson | Bone anchor closure pivot-splay control flange form guide and advancement structure |
US10064658B2 (en) | 2014-06-04 | 2018-09-04 | Roger P. Jackson | Polyaxial bone anchor with insert guides |
Also Published As
Publication number | Publication date |
---|---|
FR2857850B1 (en) | 2005-08-19 |
PT1653873E (en) | 2011-09-12 |
ATE511803T1 (en) | 2011-06-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
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 | |
FR2865377A1 (en) | Vertebral osteosynthesis equipment for use in correcting position of vertebrae has polyaxial anchor with nut that is elastically deformable and is interposed between the connecting portion and a bearing surface of the base | |
FR2856578A1 (en) | Vertebral osteosynthesis material, has screw with deformable elastic circular wall interposed between connection piece and threaded distal screw body, where wall permits mobility of piece with respect to body | |
EP1708631B1 (en) | Vertebral osteosynthesis 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 | |
EP1575433B1 (en) | Plate fixing system | |
EP0971639B1 (en) | Device for backbone osteosynthesis with offset intervertebral fixing rod | |
CA2215485C (en) | Spinal instruments, particularly for a rod | |
EP0919199B1 (en) | Intervertebral connecting device with axial and angular play | |
FR2833151A1 (en) | BONE ANCHORING IMPLANT WITH POLYAXIAL HEAD | |
FR2929100A1 (en) | MATERIAL OF VERTEBRAL ARTHRODE | |
FR2697992A1 (en) | Device for fixation on a stem of an organ, in particular for spinal orthopedic instrumentation. | |
WO1996041582A1 (en) | Implant for surgically treating a vertebral isthmic fracture | |
FR2680461A1 (en) | IMPLANT FOR OSTEOSYNTHESIS DEVICE, ESPECIALLY OF THE RACHIS, AND CORRESPONDING DEVICE FOR ITS PLACEMENT. | |
FR2831420A1 (en) | APPARATUS FOR HOLDING THE SPIN WITH A PINCH ASSEMBLY | |
FR2835735A1 (en) | Vertebral bone fixing screw has screw and rod with spherical joint having intercalating fingers on halves and fitting into recess in anchor screw head | |
FR3019982A1 (en) | VERTEBRAL OSTEOSYNTHESIS EQUIPMENT FOR REALIZING THE ILIAC ANCHORAGE OF A VERTEBRAL BAR | |
FR2861981A1 (en) | MATERIAL OF VERTEBRAL OSTEOSYNTHESIS | |
WO1999000065A1 (en) | Adjustable fixing device for straightening and supporting the back bone | |
FR2756481A1 (en) | SPINAL DEVIATION CORRECTION DEVICE | |
FR2790941A1 (en) | INSTRUMENTATION OF RACHIDIAN OSTEOSYNTHESIS WITH PLATE AND PEDICULAR SCREW OR TRANSVERSE CONNECTOR BETWEEN A VERTEBRAL ROD AND A PEDICULAR SCREW | |
EP0682918A1 (en) | Spinal osteosynthesis device | |
WO2005053550A1 (en) | Implant system comprising an implant and implant fixing means provided with a screw anchor screwed into a blocking unit clipped in the implant | |
WO1995032676A1 (en) | Implant for an osteosynthesis device | |
FR2956803A1 (en) | Vertebral osteosynthesis equipment for use on spinal vertebrae, has anchoring units comprising connection rod connecting anchoring units, and strip comprising free end with support surface against which locking unit is supported |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PLFP | Fee payment |
Year of fee payment: 12 |
|
ST | Notification of lapse |
Effective date: 20161230 |