FR2718946A1 - Lumbar-sacral osteosynthesis fixing - Google Patents

Lumbar-sacral osteosynthesis fixing Download PDF

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Publication number
FR2718946A1
FR2718946A1 FR9405187A FR9405187A FR2718946A1 FR 2718946 A1 FR2718946 A1 FR 2718946A1 FR 9405187 A FR9405187 A FR 9405187A FR 9405187 A FR9405187 A FR 9405187A FR 2718946 A1 FR2718946 A1 FR 2718946A1
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FR
France
Prior art keywords
rod
connecting rod
sacral
lumbar
spiral
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
Application number
FR9405187A
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French (fr)
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FR2718946B1 (en
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Soprane SA
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Soprane SA
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Publication date
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Priority to FR9405187A priority Critical patent/FR2718946B1/en
Publication of FR2718946A1 publication Critical patent/FR2718946A1/en
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Publication of FR2718946B1 publication Critical patent/FR2718946B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • A61B17/7026—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other with a part that is flexible due to its form
    • A61B17/7028—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other with a part that is flexible due to its form the flexible part being a coil spring
    • 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
    • A61B17/7026—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other with a part that is flexible due to its form
    • A61B17/7029—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other with a part that is flexible due to its form the entire longitudinal element being flexible
    • 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
    • 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
    • A61B17/7055—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant connected to sacrum, pelvis or skull

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)
  • Surgical Instruments (AREA)

Abstract

The fixing consists of pedicular screws connected by a rod (5) which is supple and elastically deformable to control the movements of lumbar vertebrae during traction, compression, flexion and rotation. The rod is made from a biocompatible material such as a steel or titanium alloy and it can be in the form of a square, round or rectangular section wire, wound in a spiral.The hollow spiral rod has a stopper (5b) in each end, which can either be plain or spiral to engage with the rod's coils. The rod can be made rigid in sections by screwing a threaded rod into it.

Description

R E VE NDIL LL IR E VE NDIL LL I

1. Fixateur pour Les cstéosynthèses Lombo-sacrées du rachis du genre comprenant des vis pédicutaires (3) ancrées dans les pédicules (1g) de chaque vertèbre tombaire (1) et des moyens de retenue (4) de ta tige de Liaison sur Lesdites vis, caractérisé en ce que ta tige de Liaison (5) est prévue souple et déformabte étastiquement pour contr8ter Les déplacements des vertèbres Lombaires (1t) en traction, compression,  1. Fixator for Lumbosacral spinal cereosynthesis of the genus comprising pedicutary screws (3) anchored in the pedicles (1g) of each tomb vertebra (1) and retaining means (4) of your connecting rod on said screws , characterized in that your connecting rod (5) is provided flexible and deformable etastically to control the displacements of the lumbar vertebrae (1t) in traction, compression,

flexion et rotation.bending and rotation.

2. Fixateur suivant La revendication 1, caractérisé en ce que La tige de Liaison (5) est réalisée en un matériau bio-compatibte en  2. Fixer according to claim 1, characterized in that the connecting rod (5) is made of a bio-compatible material in

altliage d'acier ou de titane.altliage of steel or titanium.

3. Fixateur suivant ta revendication 1, caractérisé en ce que ta tige de liaison (5) est réalisée dans un filt (5a) enrc lé en forme  3. Fixer according to your claim 1, characterized in that your connecting rod (5) is made of a filt (5a) wrapped in shape

d'hélice et dont ta section peut être ronde, carrée ou rectangulaire.  of propeller and whose section can be round, square or rectangular.

4. Fixateur suivant La revendication 1, caractérisé en ce que La tige de Liaison (5) comporte à chacune des extrémités un bouchon (5b, 'b). 5. Fixateur suivant La revendication 1, caractérisé en ce qu'ur doirc fileté (6) est introduit à L'intérieur de ta tige (5) de manière à constituer une segmentation rigide et souple Lorsque cet ensemble est  4. Fixer according to claim 1, characterized in that the connecting rod (5) has at each end a plug (5b, 'b). 5. Fixer according to claim 1, characterized in that ur threaded doirc (6) is introduced inside your rod (5) so as to constitute a rigid and flexible segmentation When this assembly is

monté sur Les pédicuLes (1b) d'une cotonne vertébrale (1).  mounted on pedicels (1b) of a spinal cotton (1).

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La présente invention a trait à un fixateur pour des ostéosynthè-  The present invention relates to a fixative for osteosynthesis.

ses Lombo-sacrées, permettant La réunion des étages vertébraux endomma-  its lumbo-sacral, allowing the reunion of the damaged vertebral stages

gés de cette partie du rachis, tout en contr8lant Les déolacements de  of this part of the spine, while controlling Deololations of

chaque vertèbre Lombaire en traction, compression, flexion et rotation.  each Lumbar vertebra in traction, compression, flexion and rotation.

On connaît des fixateurs qui comprennent généralement une tige de  Fixers are known which generally comprise a rod of

liaison rigide et plusieurs ensembles qui coopèrent avec des vis pédi-  rigid connection and several assemblies which cooperate with pedestrian screws

culaires préalablement ancrées dans les pédicules des vertèbres Lomba,;-  eyepieces previously anchored in the pedicles of the Lomba vertebrae,; -

res endommagées en vue de la fixation de La tige. Les fixateure sont  res damaged in order to fix the rod. The fixatives are

utilisés pour réaliser des ostéosynth ses Loabo-sacrées en vue de main-  used to perform osteosynthes its Loabo-sacred in view of hand-

tenir et de réunir rigidement les étages vertébraux endonmagés.  hold and rigidly bring together the damaged vertebral levels.

De tels fixateurs nécessitent l'alignement des vis pédicula;res dans te plan sagittal et frontal. En effet, si l'alignement n'est pas respecté, ta réunion et la connexion par la tige est impossible, a moins  Such fixers require alignment of the pedicle screws in the sagittal and frontal plane. Indeed, if the alignment is not respected, your meeting and the connection by the rod is impossible, unless

de déformer cette dernière pour récupérer le décalage angulaire.  to deform the latter to recover the angular offset.

De plus, Les fixateurs considérés entraÂnent des risques de dégéne-  In addition, the fixers considered entail risks of degeneration.

rescences ultérieures du disque qui se trouve immédiatement sus-iacemt à l'ensemble des vertèbres instrumentées. En effet, le disque recoil après l'ostéosynthèse loabo-sacrée la totalité des contraintes qui, en!'tat  subsequent rescences of the disc which is immediately above-iacemt to all of the instrumented vertebrae. Indeed, the disc recoil after the loabo-sacral osteosynthesis all the constraints which, in! 'Tat

normal se trouveraient sur plusieurs étages.  normal would be on several floors.

En outre, de tels fixateurs empêchent le déplacement des vertèbres assemblées entre elles, risquant d'engendrer des contraintes mécaniques  In addition, such fixers prevent the displacement of the vertebrae assembled together, risking causing mechanical stresses.

importantes sur l'ensemble restant de la colonne vertébrale.  important on the rest of the spine.

C'est é ses inconvénients qu'entend plus particulièrement remédier  It is its disadvantages that more particularly intends to remedy.

la présente invention.the present invention.

Le but du fixateur suivant la présente invention est de permettre un soulagement des vertèbres lombaires tout en contrôlant leurs  The purpose of the fixator according to the present invention is to allow relief of the lumbar vertebrae while controlling their

mouvements les unes par rapport aux autres.  movements relative to each other.

Le fixateur pour les ostéosynthèses Lombo-sacrées suivant La pré-  The fixative for lumbosacral osteosyntheses according to the pre-

sente invention comprend une tige de liaison souple et déformable élas-  sente invention comprises a flexible and deformable connecting rod elas-

tiquement reliant chaque vertèbre lombaire pour contrôler leur dénla-  tically connecting each lumbar vertebra to control their collapse

cement en traction, compression, flexion et rotation.  cement in tension, compression, bending and rotation.

La tige de liaison suivant la présente invention est réalisée en un matériau bio-compatible en alliage d'acier ou de titane ou autre métal sous forme d'un fil enroulé de secticn, onde, carrée, rectangulaire ou  The connecting rod according to the present invention is made of a biocompatible material of alloy of steel or titanium or other metal in the form of a wire wound from secticn, wave, square, rectangular or

analogue.similar.

Le dessin annexé, doner à titre d'exemple, permettra de mieux co-  The attached drawing, donate by way of example, will allow better co-

o-endre l'invention, les caractéristiques qu'elle pr'erte *t lS$ awai-  o-endre the invention, the characteristics it pr'ert * t lS $ awai-

tages ou'etle est susceptible de procurer: Fig. 1 est une vue en 4Lévation illustrant le fix2etur pour  tages ou'etle is likely to provide: Fig. 1 is a view in 4Levation illustrating the fix2etur for

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osteosynthèse lombo-sacrée suivant l'invention.  lumbosacral osteosynthesis according to the invention.

Fig. 2 et 3 sont des vues de détail illustrant différentes  Fig. 2 and 3 are detailed views illustrating different

sections de la tige de liaison souple du fixateur.  sections of the flexible connecting rod of the fixator.

Fig. 4 est une vue montrant une variante d'utitisation de La tige do liaison à L'intérieur de laquelle est introduit un doigt rigide  Fig. 4 is a view showing a variant of use of the connecting rod inside which a rigid finger is introduced

afin de segmenter Ladite tige en zones souples et rigides.  in order to segment said rod into flexible and rigid zones.

On a représenté en fig. 1 La partie basse d'une colonne vertébrale 1 dont les vertèbres la sont réunies les unes aux autres par un fixateur 2 afin de réaliser une ostéosynhése Lombo-sacrée souple et déformable elastiquement afin de soulager les étages vertébraux lorsqu'ils sont  There is shown in fig. 1 The lower part of a vertebral column 1, the vertebrae of which are joined together by a fixator 2 in order to produce a flexible lumbo-sacral osteosynhesis which is elastically deformable in order to relieve the vertebral stages when they are

soumis à des efforts de traction, compression, flexion et rotation.  subjected to tensile, compression, bending and rotation forces.

Le fixateur 2 est constitué de vis pédiculaires 3 qui sont ancrées dan? les pédicules lb de chaque vertèbre la de La colonne 1 de part et d'autre des apophyses épineuses lc. Sur les vis pédiculaires 3 sont dispoosées des moyens de serrage 4 oui permettent de retenir une tige de  The fixator 2 consists of pedicle screws 3 which are anchored in? the pedicles 1b of each vertebra 1a of column 1 on either side of the spinous processes lc. Clamping means 4 are provided on the pedicle screws 3 yes, they allow a rod to be retained.

liaison 5 souple et déformable élastiquement.  flexible and elastically deformable connection 5.

La tige de liaison 5 est réalisée dans un matériau bio-compatibte en attiage d'acier ou de titane. La tige de Liaison 5 est formée dans un fil 5a qui est enroulé en hélice, de manière que son diamètre extérieur  The connecting rod 5 is made of a bio-compatible material made of steel or titanium alloy. The connecting rod 5 is formed in a wire 5a which is wound in a helix, so that its outside diameter

ne dépasse pas par exemple 5 amn.does not exceed 5 amn for example.

Le profit en section du fil 5à peut être par exemple carré o.r rec-  The profit in section of the wire 5à can be for example square o.r rec-

tangulaire selon les conditions d'utilisation de la tige de liaison 5 (fig. 2). Lorsque la t4ge 5 est réalisée dans un filt 5a de section carrée ou rectangulaire, elle reçoit à chaque extrémité libre un bouchon 5b solidaire d'un corps cylindrique 5c qui est introduit à force à  tangular according to the conditions of use of the connecting rod 5 (fig. 2). When the t4ge 5 is produced in a filt 5a of square or rectangular section, it receives at each free end a plug 5b secured to a cylindrical body 5c which is force-fitted to

l'intérieur de ladite tige.inside said rod.

Par contre, lorsque ta section du fil 5a est ronde, il est préfé-  On the other hand, when your section of the wire 5a is round, it is preferable to

rable d'usiner la périphérie externe de la tige 5 pour constituer un otat 5d améliorant sa retenue b l'intérieur des moyens de serrage 4 (fiw. 3). Dans cet exemple de réalisation, la tige 5 comporte à chaque extrémité un bouchon 5'b présentant un,orps cylindrique 5'c fileté pour  rable to machine the outer periphery of the rod 5 to form an otat 5d improving its retention inside the clamping means 4 (fiw. 3). In this exemplary embodiment, the rod 5 comprises at each end a plug 5'b having a threaded cylindrical orp 5'c for

amOliorer sa pénétration et sa retenue à l'intérieur de ladite tige 5.  improve its penetration and retention inside said rod 5.

Orn c,)mvtate que la forme en htlice de ta tire 5 et sa r*ae1iatior le un fIS ô s.,'t ", "'.on',p permet d'obterlr lrt de 4Y" P', ai ô: jr la rein bifa - e (a colonne vertébralte 1 un cortrPte des aip(itudes de mouvements et un soulagement des contraintes soumises aux  Orn c,) mvtate that the htlice shape of your tire 5 and its r * ae1iatior le un fIS ô s., 'T ","' .on ', p allows to obtlr lrt of 4Y "P', ai ô : jr the kidney bifa - e (a vertebral column 1 a cortrPte of the aip (studies of movements and a relief of the stresses subjected to

vertebres la. En effet, la lige 5, de par se conception, peut se defnr-  vertebrae. Indeed, lige 5, by design, can be defnr-

mer dz.s toutes les directions que se soit en traction, compression,  sea dz.s all directions whether in tension, compression,

f^-nu, r)u rotation.f ^ -nu, r) u rotation.

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De plus, la raideur du fit Sa permet de réduire la mobilité du rachis en contrtlant les déplacements des vertèbres lombaires la en  In addition, the stiffness of the Sa fit reduces the mobility of the spine by controlling the movements of the lumbar vertebrae in

flexion, extension, inflexion et rotation.  flexion, extension, inflection and rotation.

Ce genre de tige de liaison 5 permet à La partie lombo-sacrée de La colonne 1 d'être libre dans ses mouvements tout en contrôLant ces der-  This kind of connecting rod 5 allows the lumbo-sacral part of column 1 to be free in its movements while controlling these latter.

niers pour éviter de trop grands efforts sur Les disques inter-verté-  to avoid too great efforts on the inter-vertebral discs

braux. En fig. 4, on a représenté un doigt fileté 6 qui est introduit à l'intérieur de la tige souple 5 de mantière à constituer une segmentation rigide et souple. En effet, le chirurgien peut introduire le doigt  braux. In fig. 4, there is shown a threaded finger 6 which is introduced inside the flexible rod 5 of the coat to constitute a rigid and flexible segmentation. Indeed, the surgeon can introduce the finger

fileté 6 à l'tntérieur de ta tige 5 à un endroit prédéterminé, par exem-  threaded 6 inside your rod 5 at a predetermined location, for example

ple au milieu de celtle-ci pour la rendre rigide sur la Longueur du doigt  full in the middle of this to make it rigid on the length of the finger

6 et souple de part et d'autre. Ainsi, la tige 5 garde toutes ses carac-  6 and flexible on both sides. Thus, the rod 5 retains all of its characteristics

téristiques de souplesse et de contrôle des mouvements d'amplitude, mais uniquement sur des zones ou segmentations délimitées par le doigt fileté 6. L'utilisation de ce doigt fileté 6 permet, tors de la mise en place de La tige 5 sur des vis pédiculaires 3 préalablement ancrées sur les pellicules lb, de constituer des zones souples et rigides suivant te  flexibility and control of amplitude movements, but only on zones or segmentations delimited by the threaded finger 6. The use of this threaded finger 6 allows, twist the establishment of the rod 5 on pedicle screws 3 previously anchored on the films lb, to form flexible and rigid zones according to te

niveau de dégradation du disque inter-vertebral à soulager.  level of degradation of the inter-vertebral disc to be relieved.

On note épgatement qu'une telle tige de liaison 5 peut être combinée sur un fixateur de rachis avec une autre tige de liaison prévue rigide pour constituer un ensemble répondant parfaitement aux détériorations  We note briefly that such a connecting rod 5 can be combined on a spine fixator with another rigid connecting rod provided to constitute an assembly responding perfectly to deterioration

des disques.some discs.

IL doit d'ailleurs être entendu que ta description qui précède n'a  IT should also be understood that your description above has

été donnée qu'à titre d'exemple et qu'elle ne limite nullement le domaine de L'invention dont on ne sortirait pas en remplaçant les  has been given only by way of example and that it in no way limits the field of the invention from which we would not be leaving by replacing

détails d'exécution décrits par tous auire3 équivalents.  execution details described by all equivalent auire3.

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FR9405187A 1994-04-25 1994-04-25 Flexible rod for lumbosacral osteosynthesis fixator. Expired - Fee Related FR2718946B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9405187A FR2718946B1 (en) 1994-04-25 1994-04-25 Flexible rod for lumbosacral osteosynthesis fixator.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9405187A FR2718946B1 (en) 1994-04-25 1994-04-25 Flexible rod for lumbosacral osteosynthesis fixator.

Publications (2)

Publication Number Publication Date
FR2718946A1 true FR2718946A1 (en) 1995-10-27
FR2718946B1 FR2718946B1 (en) 1996-09-27

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Application Number Title Priority Date Filing Date
FR9405187A Expired - Fee Related FR2718946B1 (en) 1994-04-25 1994-04-25 Flexible rod for lumbosacral osteosynthesis fixator.

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FR (1) FR2718946B1 (en)

Cited By (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996015729A1 (en) * 1994-11-18 1996-05-30 Euros S.A. Posterior spinal stabilisation device using a rod
FR2745706A1 (en) * 1996-03-05 1997-09-12 Option Sa Prosthetic vertebral support device
FR2755844A1 (en) * 1996-11-15 1998-05-22 Stryker France Sa ELASTICALLY DEFORMED OSTEOSYNTHESIS SYSTEM FOR SPINE
FR2799949A1 (en) * 1999-10-22 2001-04-27 Abder Benazza Spinal osteosynthesis apparatus has lengthwise supports in form of single or double spiral springs to allow for movement
JP2003038505A (en) * 2001-08-01 2003-02-12 Showa Ika Kohgyo Co Ltd Bone joining connection member
WO2003047442A1 (en) * 2001-12-07 2003-06-12 Mathys Medizinaltechnik Ag Damping element and device for stabilisation of adjacent vertebral bodies
EP1364622A3 (en) * 2002-05-21 2003-12-17 Spinelab GmbH Elastical system for stabilising the spine
FR2844180A1 (en) * 2002-09-11 2004-03-12 Spinevision Connection element for spinal fixation system designed to link at least two implantable connection assemblies, is formed from a helicoidal spring part and a polymeric material support part
FR2846223A1 (en) * 2002-10-24 2004-04-30 Frederic Fortin Flexible intervertebral connection device has two screws and connection acting as damper with three degrees of freedom and heads with radii at ends enabling rotation in connection opening
FR2846222A1 (en) * 2002-10-24 2004-04-30 Frederic Fortin Adjustable modular flexible vertebral connection device comprises two identical screws and connection system forming damper with three degrees of freedom
EP1488751A1 (en) * 2003-06-16 2004-12-22 Ulrich GmbH & Co. KG Implant for stabilisation and correction of the spine
FR2868285A1 (en) * 2004-03-30 2005-10-07 Scient X Sa INTERVERTEBRAL CONNECTION DEVICE WITH CONTROLLED MULTIDIRECTIONAL MOVEMENTS
EP1677689A2 (en) * 2003-09-24 2006-07-12 N Spine, Inc. A method and apparatus for flexible fixation of a spine
EP1830723A2 (en) * 2004-12-27 2007-09-12 N Spine, Inc. Adjustable spinal stabilization system
EP2123230A3 (en) * 2003-11-07 2010-01-27 BIEDERMANN MOTECH GmbH Spring element for a stabiliser device for bones and method for producing same
US8632570B2 (en) 2003-11-07 2014-01-21 Biedermann Technologies Gmbh & Co. Kg Stabilization device for bones comprising a spring element and manufacturing method for said spring element
US8721690B2 (en) 2003-10-17 2014-05-13 Biedermann Technologies GmbH & Co., KG Rod-shaped implant element with flexible section
US9629669B2 (en) 2004-11-23 2017-04-25 Roger P. Jackson Spinal fixation tool set and method
US9636146B2 (en) 2012-01-10 2017-05-02 Roger P. Jackson Multi-start closures for open implants
US9636151B2 (en) 2004-02-27 2017-05-02 Roger P Jackson Orthopedic implant rod reduction tool set and method
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
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
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
US9717533B2 (en) 2013-12-12 2017-08-01 Roger P. Jackson Bone anchor closure pivot-splay control flange form guide and advancement structure
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