[go: up one dir, main page]

FR2808182A1 - Surgical compression screw for joining two bones together has two threaded portions with different pitches, diameters and angles - Google Patents

Surgical compression screw for joining two bones together has two threaded portions with different pitches, diameters and angles Download PDF

Info

Publication number
FR2808182A1
FR2808182A1 FR0005605A FR0005605A FR2808182A1 FR 2808182 A1 FR2808182 A1 FR 2808182A1 FR 0005605 A FR0005605 A FR 0005605A FR 0005605 A FR0005605 A FR 0005605A FR 2808182 A1 FR2808182 A1 FR 2808182A1
Authority
FR
France
Prior art keywords
diameter
threads
thread
rod
bone
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
FR0005605A
Other languages
French (fr)
Other versions
FR2808182B1 (en
Inventor
Jean Christophe Alain Giet
Theo Jan Maria Knevels
Eric Stephane Fourcault
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Newdeal SAS
Original Assignee
Newdeal SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Newdeal SAS filed Critical Newdeal SAS
Priority to FR0005605A priority Critical patent/FR2808182B1/en
Publication of FR2808182A1 publication Critical patent/FR2808182A1/en
Application granted granted Critical
Publication of FR2808182B1 publication Critical patent/FR2808182B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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 or setting implements
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/72—Intramedullary devices, e.g. pins or nails
    • A61B17/7291—Intramedullary devices, e.g. pins or nails for small bones, e.g. in the foot, ankle, hand or wrist
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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 or setting implements
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86—Pins or screws or threaded wires; nuts therefor
    • A61B17/8625—Shanks, i.e. parts contacting bone tissue
    • A61B17/863—Shanks, i.e. parts contacting bone tissue with thread interrupted or changing its form along shank, other than constant taper
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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 or setting implements
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/72—Intramedullary devices, e.g. pins or nails
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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 or setting implements
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/72—Intramedullary devices, e.g. pins or nails
    • A61B17/7216—Intramedullary devices, e.g. pins or nails for bone lengthening or compression
    • A61B17/7225—Intramedullary devices, e.g. pins or nails for bone lengthening or compression for bone compression
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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 or setting implements
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/72—Intramedullary devices, e.g. pins or nails
    • A61B17/7233—Intramedullary devices, e.g. pins or nails with special means of locking the nail to the bone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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 or setting implements
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86—Pins or screws or threaded wires; nuts therefor
    • A61B17/8625—Shanks, i.e. parts contacting bone tissue
    • A61B17/8635—Tips of screws
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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 or setting implements
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86—Pins or screws or threaded wires; nuts therefor
    • A61B17/8645—Headless screws, e.g. ligament interference screws
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (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 screw, comprising a shank that is pointed at both ends, has two threaded portions (F1, F2) with different pitches and outer diameters. The pitch and diameter of the first threaded portion (F1) and greater than the pitch and diameter of the second threaded portion (F2); the first portion has a single helix thread and the second a double helix, angled at 20 and 45 degrees respectively. The two threaded portions are separated by a smooth section (5).

Description

<B>BROCHE CHIRURGICALE DE COMPRESSION</B> <B>POUR LA</B> SOLIDARISATION <B>DE PHALANGES</B> La présente invention se rapporte au domaine technique général des broches chirurgicales destinées à assurer la solidarisation de deux parties osseuses et en particulier de phalanges d'orteils ou de doigts, ladite solidarisation s'effectuant par mise en contact des deux parties osseuses. The present invention relates to the general technical field of surgical pins intended to ensure the joining of two parts. bones and in particular phalanges of toes or fingers, said joining being effected by contacting the two bony parts.

La présente invention concerne une broche chirurgicale destinée à assurer la solidarisation de deux parties osseuses, en particulier de phalanges d'orteils de doigts. The present invention relates to a surgical pin for securing two bony parts, in particular finger toe phalanges.

Dans certaines situations chirurgicales, et par exemple dans le cas de déformations osseuses des pieds ou des mains, ou dans le d'arthrodèses inter phalangiennes, il est nécessaire de procéder à raccourcissement osseux des phalanges, ou de procéder à solidarisation de l'articulation inter phalangienne. In certain surgical situations, and for example in the case of bone deformities of the feet or hands, or in the inter phalangeal arthrodesis, it is necessary to proceed to bone shortening of the phalanges, or to join the inter-joint phalangeal.

Dans le des raccourcissements osseux, il est déjà connu, notamment dans la chirurgie du pied, de pratiquer de tels raccourcissements osseux en prélevant, l'os à raccourcir, la longueur nécessaire au raccourcissement. Par la suite, la solidarisation des deux parties osseuses est effectuée à l'aide d'une agrafe à compression. In the case of bone shortening, it is already known, particularly in foot surgery, to practice such shortening of the bone by taking the bone to be shortened, the length necessary for shortening. Subsequently, the joining of the two bone parts is performed using a compression staple.

Cette technique de raccourcissement n'est pas d'application générale s'avère souffrir d'inconvénients liés à la sécurité du maintien des parties osseuses solidarisées, et principalement à la difficulté de mise en place l'agrafe et des parties osseuses à solidariser avec une position parfaite. particulier, le recours à des agrafes à compression rend la mise en place des parties osseuses à solidariser extrêmement difficile, lorsqu'une direction axiale précise doit être respectée entre les deux parties osseuses. This technique of shortening is not of general application proves to suffer from disadvantages related to the safety of the maintenance of the solidarized bone parts, and mainly to the difficulty of setting up the staple and the bone parts to be secured with a perfect position. In particular, the use of compression staples makes the placement of the bone parts to be extremely difficult to join, when a precise axial direction must be respected between the two bony parts.

Dans le cas des arthrodèses inter phalangiennes, les praticiens réalisent généralement des montages faisant intervenir l'insertion d'une broche metallique lisse, Le recours à des broches métalliques, traversant tout ou partie des deux parties osseuses à mettre en place, permet de résoudre en partie le problème d'alignement axial des parties osseuses rencontré lors de l'utilisation des agrafes à compression. Néanmoins, l'utilisation de broches métalliques lisses souffre de l'inconvénient lié à l'absence de compression parties osseuses à solidariser, ce qui n'est pas un élément favorable l'ostéosynthèse. In the case of inter-phalangeal arthrodesis, the practitioners generally make assemblies involving the insertion of a smooth metal pin, The use of metal pins, traversing all or part of the two bone parts to be put in place, solves the problem. part the problem of axial alignment of the bony parts encountered when using compression staples. Nevertheless, the use of smooth metal pins suffers from the drawback related to the lack of compression of bone parts to be joined, which is not a favorable element osteosynthesis.

objets assignés à l'invention visent en conséquence à proposer nouvelle broche chirurgicale destinée à assurer la solidarisation de deux parties osseuses, et qui permettent un bon alignement axial de ces deux parties osseuses, ainsi qu'une compression axiale mutuelle de ces deux parties osseuses. Objects assigned to the invention therefore aim at proposing a new surgical pin intended to ensure the joining of two bone parts, and which allow a good axial alignment of these two bone parts, as well as mutual axial compression of these two bone parts.

Un autre objet de l'invention vise à proposer une nouvelle broche chirurgicale présentant une bonne stabilité de pénétration, ainsi qu'une bonne stabilité de la compression mutuelle des parties osseuses. Another object of the invention is to propose a new surgical pin having a good penetration stability, as well as good stability of the mutual compression of the bone parts.

Un autre objet de l'invention vise à proposer une nouvelle broche chirurgicale favorisant la mise en compression des deux parties osseuses. Un autre objet de l'invention vise à proposer une nouvelle broche chirurgicale permettant une compression particulièrement efficace des deux parties osseuses à solidariser. Un autre objet de l'invention vise à proposer une nouvelle broche chirurgicale permettant de faciliter la mise en place de la broche. Another object of the invention is to propose a new surgical pin promoting the compression of the two bone parts. Another object of the invention is to propose a new surgical pin allowing particularly effective compression of the two bone parts to be joined. Another object of the invention is to provide a new surgical pin to facilitate the establishment of the spindle.

Un objet supplémentaire de l'invention vise à proposer une nouvelle broche chirurgicale particulièrement adaptée à la solidarisation de phalanges. A further object of the invention is to propose a new surgical pin particularly adapted to the joining of phalanges.

Les objets assignés à l'invention sont atteints à l'aide d'une broche chirurgicale destinée à assurer la solidarisation de deux parties osseuses M,, en particulier de phalanges, caractérisée en ce elle comporte une tige effilée à ses deux extrémités 2, 3, comprenant deux filetages F,, F2 s'étendant sur deux portions de sa longueur, les deux filetages F,, F2, respectivement de pas P,, P2 et de diamètre extérieur D2 étant tels que P2 supérieur à P, et D, est supérieur à D2. The objects assigned to the invention are achieved by means of a surgical pin designed to secure two bone parts M ,, in particular phalanges, characterized in that it comprises a tapered stem at its two ends 2, 3 , comprising two threads F ,, F2 extending over two portions of its length, the two threads F ,, F2, respectively pitch P ,, P2 and outer diameter D2 being such that P2 greater than P, and D, is greater than D2.

D'autres avantages de l'invention seront explicités plus en détails à la lecture de la description qui suit et des dessins, fournis * après uniquement à titre explicatif et non limitatif, dans lesquels - La figure 1 illustre, selon une vue générale, un exemple de réalisation d'une broche de compression conforme à l'invention. Other advantages of the invention will be explained in more detail on reading the description which follows and the drawings, provided only after explanatory and non-limiting, in which - Figure 1 illustrates, in a general view, a exemplary embodiment of a compression pin according to the invention.

- figure 2 illustre, selon une vue en coupe schématique partielle, un detail de la première étape de mise en place de la broche. - Figure 2 illustrates, in a partial schematic sectional view, a detail of the first stage of implementation of the spindle.

- figure 3 illustre, selon une vue en coupe schématique partielle, un detail de la mise en place de la broche de compression conforme à l'invention selon une étape supplémentaire. - La figure 4 illustre, selon une vue en coupe schématique partielle, un détail de la mise en place d'une broche chirurgicale conforme à l'invention selon une étape terminale. - Figure 3 illustrates, in a partial schematic sectional view, a detail of the establishment of the compression pin according to the invention in a further step. - Figure 4 illustrates, in a partial schematic sectional view, a detail of the establishment of a surgical pin according to the invention according to a terminal step.

- La figure 5 illustre, selon une vue en coupe schématique partielle, solidarisation de deux parties osseuses lorsque l'implantation de broche conforme à l'invention est terminée. - Figure 5 illustrates, in a partial schematic sectional view, securing two bone parts when the pin implantation according to the invention is complete.

- La figure 6 illustre, selon une vue en coupe schématique partielle, l'implantation définitive de la broche, lorsque la partie sécable a été retirée. - Figure 6 illustrates, in a partial schematic sectional view, the final implantation of the spindle, when the breakable portion has been removed.

La figure 7 illustre , selon une vue partielle, un détail de réalisation de l'inclinaison des filetages d'une broche conforme à l'invention. Figure 7 illustrates, in a partial view, a detail of the embodiment of the inclination of the threads of a spindle according to the invention.

que cela est représenté aux figures 1 à 7, la broche chirurgicale conforme à l'invention est destinée à assurer la solidarisation de deux parties osseuses M,, M2, et en particulier à titre d'application préférentielle, solidarisation de deux phalanges du pied ou de la main. 1 to 7, the surgical pin according to the invention is intended to ensure the joining of two bone parts M ,, M2, and in particular as a preferential application, securing two phalanges of the foot or from the hand.

La broche chirurgicale conforme à l'invention comporte une tige 1 sensiblement cylindrique, de préférence réalisée en un matériau métallique biocompatible, ladite tige étant effilée à ses deux extrémités 2, 3 pour favoriser l'introduction et le positionnement de ladite tige 1. The surgical pin according to the invention comprises a substantially cylindrical rod 1, preferably made of a biocompatible metallic material, said rod being tapered at its two ends 2, 3 to promote the introduction and positioning of said rod 1.

Selon l'invention, la tige 1 comporte et est pourvue à sa périphérie de deux filetages, respectivement F, et F2, de même sens et s'étendant sur deux portions de la longueur totale de la tige 1, et de préférence sur des portions de longueur sensiblement égale. Selon l'invention, chaque filetage F,, F2 comporte des filets f,, orientés mutuellement de même sens définissant entre eux respectivement pas P, et pas P2, le pas P2 étant supérieur au pas P, avec une angulation a correspondante des filets également supérieure tel que cela est bien connu de l'homme de l'art. According to the invention, the rod 1 comprises and is provided at its periphery with two threads, respectively F 1 and F 2, of the same direction and extending over two portions of the total length of the rod 1, and preferably on portions of substantially equal length. According to the invention, each thread F ,, F2 has threads f ,, mutually oriented with the same direction defining between them respectively not P, and not P2, the pitch P2 being greater than the pitch P, with a corresponding angulation of the threads also superior as is well known to those skilled in the art.

Selon l'invention également, la broche chirurgicale conforme à l'invention est conçue et réalisée de telle façon que le diamètre extérieur de chaque filetage F,, F2, respectivement nommés D,, D2, soit différent de telle sorte que est supérieur à D2. According to the invention also, the surgical pin according to the invention is designed and made such that the outer diameter of each thread F ,, F2, respectively named D ,, D2, is different so that is greater than D2 .

Grâce à ces particularités de conception, il est possible, tel qu'illustré aux figures 2 à 4, d'effectuer d'abord le vissage du filetage F, dans la partie osseuse M,, sans que le filetage F2 soit actif dans le taraudage réalisé par le filetage F,, puisqu'il est d'un diamètre inférieur. Au contraire, lors vissage ultérieur (figure 4) du filetage F2 dans l'autre partie osseuse M2, le filetage F2 est actif. En outre, les filets f2 étant comparativement plus espacés entre eux que filets f,, la vitesse d'introduction du filetage F2 dans la fraction d'os M2 sera plus rapide que la vitesse de sortie du filetage F, hors la partie osseuse M,, ce qui crée une zone de compression entre les deux parties osseuses M,, M2. Thanks to these design features, it is possible, as illustrated in FIGS. 2 to 4, to first screw the thread F into the bone portion M ,, without the thread F2 being active in the tapping. realized by the thread F ,, since it is of a smaller diameter. On the contrary, during subsequent screwing (FIG. 4) of the thread F2 into the other bone part M2, the threading F2 is active. In addition, the threads f2 being comparatively more spaced than threads f ,, the insertion speed of the thread F2 into the bone fraction M2 will be faster than the output speed of the thread F, outside the bone part M, , which creates a compression zone between the two bone parts M ,, M2.

Selon une variante préférentielle de l'invention, la tige 1 comporte deux sections de diamètres différents respectivement notés W,, W2. De manière particulièrement avantageuse, les sections de diamètres W,, W2 constituent la totalité de la longueur de la tige 1 à l'exception des deux extrémités effilées 2, 3, le diamètre W, étant supérieur au diamètre W2, par exemple de l'ordre de 1,6 millimètres. Ainsi, selon une variante préférentielle de l'invention, le filetage F, s'étend sur la portion de longueur de la tige dont le diamètre W, est supérieur au diamètre W2 la portion de longueur de la tige 1 sur laquelle s'étend le filetage F2. Selon cette variante, les filets f, présentent non seulement un diamètre extérieur D, supérieur au diamètre extérieur D2 des filets f2, mais encore leur diamètre à la racine correspondant au diamètre W, est supérieur ou égal au diamètre à la racine des filets f2. Une telle réalisation confère à l'ensemble la vis une excellente stabilité longitudinale et transversale. Selon l'invention, les filetages F, et F2 seront avantageusement de longueur sensiblement identique, les parties terminales 6, 7 de la tige 1 situées entre l'extrémité de chaque filetage F,, F2 et respectivement les extrémités 3, 2 étant formées par des zones lisses. According to a preferred variant of the invention, the rod 1 comprises two sections of different diameters respectively denoted W ,, W2. Particularly advantageously, the sections of diameters W 1, W 2 constitute the entire length of the rod 1 with the exception of the two tapered ends 2, 3, the diameter W being greater than the diameter W 2, for example of the order of 1.6 millimeters. Thus, according to a preferred variant of the invention, the thread F extends over the length portion of the rod whose diameter W is greater than the diameter W2 the length portion of the rod 1 on which the F2 thread. According to this variant, the threads f, have not only an outer diameter D greater than the outer diameter D2 of the threads f2, but also their diameter at the root corresponding to the diameter W, is greater than or equal to the diameter at the root of the threads f2. Such an embodiment gives the assembly the screw excellent longitudinal and transverse stability. According to the invention, the threads F 1 and F 2 are advantageously of substantially identical length, the end portions 6, 7 of the rod 1 located between the end of each thread F 1, F 2 and the ends 3, 2 being formed by smooth areas.

Selon une variante préférentielle de l'invention, la tige 1 comporte une zone de diamètre affaiblie, ou zone sécable 8, afin de permettre de faciliter la séparation de la partie lisse (et inactive) de la partie active (filetée) de la broche après l'implantation. Avantageusement, la zone sécable 8 sera située sur la partie lisse 6 entre le filetage F, et l'extrémité 3, réalisée au voisinage du filetage F, par exemple à quelques millimètres. According to a preferred variant of the invention, the rod 1 comprises a zone of weakened diameter, or breakable zone 8, in order to make it possible to facilitate the separation of the smooth (and inactive) part of the active part (threaded) of the pin after implantation. Advantageously, the breakable zone 8 will be located on the smooth portion 6 between the thread F, and the end 3, made in the vicinity of the thread F, for example a few millimeters.

Selon une autre caractéristique particulièrement avantageuse l'invention, les filetages F, et F2 sont séparés par une portion lisse 5 permettant lors du rapprochement des parties osseuse M, et M2 un bon rapprochement et une bonne efficacité de la compression. La portion lisse 5 sera réalisée soit sur la portion de longueur de la tige 1 correspondant au petit diamètre D2, soit sur l'autre portion de longueur correspondant au grand diamètre Pour améliorer l'efficacité de la compression, le pas P2 sera avantageusement le double du pas P,. Avantageusement, tel qu'illustré à la Fig.7, la valeur de l'angle des filets f2 sera de l'ordre de 45 , la valeur correspondante de l'angle des filets f, étant de l'ordre de 20 . D'autres couples de valeurs sont envisageables tel que cela est prescrit par la norme NF S 90411. According to another particularly advantageous feature of the invention, the threads F 1 and F 2 are separated by a smooth portion 5 allowing the approximation of the bone portions M 1 and M 2 to be a good approximation and a good efficiency of the compression. The smooth portion 5 will be made either on the length portion of the rod 1 corresponding to the small diameter D2, or on the other portion of length corresponding to the large diameter To improve the efficiency of compression, the pitch P2 will advantageously be double step P ,. Advantageously, as illustrated in FIG. 7, the value of the angle of the threads f2 will be of the order of 45, the corresponding value of the angle of the threads f being of the order of 20. Other pairs of values are conceivable as prescribed by standard NF S 90411.

Si l'on souhaite encore améliorer l'efficacité de la compression, le filetage F2 pourra être avantageusement formé par une double hélice alors que le filetage F, sera formé par une simple hélice. If it is still desired to improve the efficiency of the compression, the threading F2 may advantageously be formed by a double helix whereas the threading F will be formed by a simple helix.

Tel que cela est illustré aux figures 2 à 6, la mise en place la broche chirurgicale conforme à l'invention s'effectue à l'aide d'un outil vissage 10 incluant un mandrin rotatif relié à un organe moteur (non représenté aux figures), dans lequel l'extrémité 2 est fixée et bloquée rotation. Le praticien effectue alors le vissage du filetage F, dans la première partie osseuse M,, jusqu'à ce que la totalité de la vis pénètre dans la partie osseuse, l'extrémité 2 débouchant alors hors de la partie osseuse M,. Le diamètre externe D, du filetage F, étant supérieur au diamètre externe D2 du filetage F2, seul le filetage F, est en prise avec la partie osseuse M,, alors que le filetage F2 est lui-même inséré dans la partie osseuse M,. As illustrated in Figures 2 to 6, the implementation of the surgical pin according to the invention is performed using a screwing tool 10 including a rotary mandrel connected to a motor member (not shown in Figures ), in which the end 2 is fixed and blocked rotation. The practitioner then performs the screwing of the thread F, in the first bone part M ,, until all of the screw enters the bone part, the end 2 then opening out of the bone part M ,. The external diameter D, of the thread F, being greater than the external diameter D2 of the thread F2, only the thread F, is in engagement with the bone part M ,, whereas the threading F2 is itself inserted into the bone part M, .

la suite, le praticien fixe le mandrin sur l'extrémité 2, et après avoir aligné axialement les parties osseuses M, et M2 (figure 4), il assure le vissage en sens inverse du filetage F2 sur et dans la partie osseuse M2. Lors vissage, le filetage F2 est vissé dans la partie osseuse M2 à une vitesse supérieure, et par exemple double de la vitesse de sortie du filetage F, hors la partie osseuse M,, ce qui provoque une compression entre les deux fractions osseuses M,, M2 lorsqu'elles sont en contact l'une avec l'autre, tel 'illustré à la figure 5. En fin d'opération (Fig. 5, 6), la partie lisse 6 comprenant la zone sécable 8 est fractionnée en l'inclinant sensiblement perpendiculairement à son axe longitudinal, puis retirée, sans avoir à utiliser une pince coupante. Thereafter, the practitioner fixed the mandrel on the end 2, and after axially aligning the bone parts M, and M2 (Figure 4), it ensures the screwing in the opposite direction of the thread F2 on and in the bone part M2. When screwing, the thread F2 is screwed into the bone part M2 at a higher speed, and for example twice the output speed of the thread F, outside the bone part M ,, which causes a compression between the two bone fractions M, , M2 when in contact with each other, as illustrated in Figure 5. At the end of the operation (Fig. 5, 6), the smooth portion 6 comprising the breakable zone 8 is fractionated at a distance of tilting substantially perpendicular to its longitudinal axis, and then withdrawn, without having to use cutting pliers.

La broche chirurgicale conforme à l'invention permet conséquence d'assurer solidarisation par compression de fragments osseux, et en particulier phalanges, tout en assurant un bon maniement entre les deux fractions osseuses. The surgical pin according to the invention consequently makes it possible to ensure compression-fitting of bone fragments, and in particular phalanges, while ensuring good handling between the two bone fractions.

A titre purement illustratif et non limitatif, les dimensions d'une broche conforme à l'invention seront - longueur totale : 100 mm dont 84 mm pour la portion longueur de diamètre W1 et 16 mm pour l'autre portion, - longueur de chaque filetage F1 et F2 : 8 mm, - diamètre W1 : 1,6 mm; diamètre W2:1,2 mm, - diamètre D1<B>:2,5</B> mm; diamètre W2 : 1,6 mm.As a purely illustrative and non-limiting example, the dimensions of a pin according to the invention will be - total length: 100 mm, 84 mm for the length of diameter portion W1 and 16 mm for the other portion, - length of each thread F1 and F2: 8 mm, - W1 diameter: 1.6 mm; diameter W2: 1.2 mm, - diameter D1 <B>: 2.5 </ B> mm; diameter W2: 1.6 mm.

Claims (1)

<B><U>REVENDICATIONS</U></B> 1 - Broche chirurgicale destinée à assurer la solidarisation de deux parties osseuses M,, M2, en particulier de phalanges, caractérisée en ce qu'elle comporte une tige (1) effilée à ses deux extrémités (2, 3), comprenant deux filetages F,, F2 s'étendant sur deux portions de sa longueur, les deux filetages Fl, F2, respectivement de pas P,, P2 et de diamètre extérieur DZ étant tels que P2 est supérieur à P, et D, est supérieur à D2. 2 - Broche selon la revendication 1 caractérisée en ce que le filetage F, s'étend une portion de longueur de la tige dont le diamètre W, est supérieur égal au diamètre W2 de la portion de longueur de la tige (1) sur laquelle 'étend le filetage F2. 3 - Broche selon la revendication 1 ou 2 caractérisée en ce que les filetages F, et F2 sont séparés par une portion lisse (5). 4 - Broche selon les revendications 2 et 3 caractérisée en ce que la portion lisse (5) réalisée sur la portion de longueur de la tige (1) de diamètre inférieur 5 - Broche selon les revendications 2 et 3 caractérisée en ce que la portion lisse (5) réalisée sur la portion de longueur de la tige (1) de diamètre supérieur 6 - Broche selon l'une des revendications 1 à 5 caractérisée en ce que le pas P2 est le double du pas P,. 7 - Broche selon l'une des revendications 1 à caractérisée en ce que le filetage F2 est formé par une double hélice, filetage F, étant formé par une simple hélice. 8 - Broche selon l'une des revendications 1 à caractérisée en ce que la valeur angulaire a, de l'inclinaison des filets est de l'ordre de 20 alors que celle a2 des filets f2 est de l'ordre de 45 . 9 - Broche selon l'une des revendications 1 à 8 caractérisée en ce que les filetages F,, F2 sont de longueur sensiblement identique. 10 - Broche selon l'une des revendications précédentes caractérisée en ce que la partie lisse (6) comporte une zone sécable (8).<1> - Surgical pin intended to ensure the joining of two bone parts M ,, M2, in particular of phalanges, characterized in that it comprises a rod (1) tapered at its two ends (2, 3), comprising two threads F ,, F2 extending over two portions of its length, the two threads F 1, F 2, respectively pitch P ,, P2 and outer diameter DZ being such that P2 is greater than P, and D is greater than D2. 2 - Spindle according to claim 1 characterized in that the threading F extends a length portion of the rod whose diameter W is greater than the diameter W2 of the length portion of the rod (1) on which extends the thread F2. 3 - pin according to claim 1 or 2 characterized in that the threads F, and F2 are separated by a smooth portion (5). 4 - Spindle according to claims 2 and 3 characterized in that the smooth portion (5) formed on the length portion of the rod (1) of smaller diameter 5 - pin according to claims 2 and 3 characterized in that the smooth portion (5) carried out on the length portion of the rod (1) of greater diameter 6 - Pin according to one of claims 1 to 5 characterized in that the pitch P2 is twice the pitch P ,. 7 - Spindle according to one of claims 1 to characterized in that the thread F2 is formed by a double helix, F-thread being formed by a simple propeller. 8 - Spindle according to one of claims 1 to characterized in that the angular value a of the inclination of the threads is of the order of 20 while the a2 nets f2 is of the order of 45. 9 - Spindle according to one of claims 1 to 8 characterized in that the threads F ,, F2 are of substantially identical length. 10 - Pin according to one of the preceding claims characterized in that the smooth portion (6) comprises a breakable zone (8).
FR0005605A 2000-04-28 2000-04-28 COMPRESSION SPINDLE FOR THE SOLIDARIZATION OF PHALANGES Expired - Fee Related FR2808182B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0005605A FR2808182B1 (en) 2000-04-28 2000-04-28 COMPRESSION SPINDLE FOR THE SOLIDARIZATION OF PHALANGES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0005605A FR2808182B1 (en) 2000-04-28 2000-04-28 COMPRESSION SPINDLE FOR THE SOLIDARIZATION OF PHALANGES

Publications (2)

Publication Number Publication Date
FR2808182A1 true FR2808182A1 (en) 2001-11-02
FR2808182B1 FR2808182B1 (en) 2002-10-31

Family

ID=8849814

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0005605A Expired - Fee Related FR2808182B1 (en) 2000-04-28 2000-04-28 COMPRESSION SPINDLE FOR THE SOLIDARIZATION OF PHALANGES

Country Status (1)

Country Link
FR (1) FR2808182B1 (en)

Cited By (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6511481B2 (en) 2001-03-30 2003-01-28 Triage Medical, Inc. Method and apparatus for fixation of proximal femoral fractures
EP1273272A3 (en) * 2001-07-02 2003-09-24 Depuy France Fixing device for bone portions
US6648890B2 (en) 1996-11-12 2003-11-18 Triage Medical, Inc. Bone fixation system with radially extendable anchor
US6685706B2 (en) 2001-11-19 2004-02-03 Triage Medical, Inc. Proximal anchors for bone fixation system
WO2006084994A1 (en) * 2005-02-14 2006-08-17 Small Bone Innovations International Osteosynthesis equipment
WO2007048267A1 (en) * 2005-10-28 2007-05-03 Medartis, Ag Thread-forming screw
EP1927322A1 (en) * 2006-12-01 2008-06-04 Wright Medical Technology, Inc. Device for positioning tubular bones
EP1982665A1 (en) 2007-04-20 2008-10-22 Zrinski AG Compression screw with wire element
DE202008016697U1 (en) 2008-03-20 2009-03-05 Med-Titan Spine Gmbh implant screw
EP1482844B1 (en) * 2002-02-15 2010-05-12 John Stanley Taras Distraction pin for fracture fixation
WO2010141183A1 (en) * 2009-06-04 2010-12-09 Olecranail Llc Intramedullary device assembly and associated method
DE102010000911A1 (en) 2010-01-14 2011-07-21 Med-Titan Spine GmbH, 91052 Instrument for strengthening human spinal column in area of e.g. vertebral body of sacrum, has stiffener screw designed in head-free manner and comprising self-cutting and/or self-centering mounting thread in area of primal threaded section
US8147531B2 (en) 2006-03-17 2012-04-03 Tornier, Inc. Compression pin with opposed threaded regions
WO2013003347A1 (en) * 2011-06-27 2013-01-03 Biomet Sports Medicine, Llc System for repairing bone defects
US8870884B2 (en) 2011-06-27 2014-10-28 Biomet Sports Medicine, Llc Method for repairing bone defects
US20170065424A1 (en) * 2015-09-04 2017-03-09 Centric Medical, LLC Small Bone Orthopedic Implants
US9713486B2 (en) 2002-07-19 2017-07-25 DePuy Synthes Products, Inc. Method and apparatus for spinal fixation
EP3122263A4 (en) * 2014-03-28 2017-11-15 Wright Medical Technology, Inc. Retrograded hammertoe compression screw implant and methods of implanting the same
US9895236B2 (en) 2010-06-24 2018-02-20 DePuy Synthes Products, Inc. Enhanced cage insertion assembly
US9913727B2 (en) 2015-07-02 2018-03-13 Medos International Sarl Expandable implant
US9993350B2 (en) 2008-04-05 2018-06-12 DePuy Synthes Products, Inc. Expandable intervertebral implant
US9993349B2 (en) 2002-06-27 2018-06-12 DePuy Synthes Products, Inc. Intervertebral disc
US10058433B2 (en) 2012-07-26 2018-08-28 DePuy Synthes Products, Inc. Expandable implant
WO2018154225A1 (en) 2017-02-22 2018-08-30 Novastep Osteosynthesis screw comprising an angular index in relation to the screwdriver
US10166056B2 (en) 2013-07-03 2019-01-01 DePuy Synthes Products, Inc. Method and apparatus for sacroiliac joint fixation
US10349991B2 (en) 2001-03-30 2019-07-16 DePuy Synthes Products, Inc. Method and apparatus for bone fixation with secondary compression
US10390963B2 (en) 2006-12-07 2019-08-27 DePuy Synthes Products, Inc. Intervertebral implant
US10398563B2 (en) 2017-05-08 2019-09-03 Medos International Sarl Expandable cage
US10413422B2 (en) 2013-03-07 2019-09-17 DePuy Synthes Products, Inc. Intervertebral implant
US10433977B2 (en) 2008-01-17 2019-10-08 DePuy Synthes Products, Inc. Expandable intervertebral implant and associated method of manufacturing the same
WO2019197913A1 (en) 2018-04-12 2019-10-17 Atlas Copco Airpower, Naamloze Vennootschap Multi-stage compressor unit and method for adjusting the rotational speed of the motors
US10500062B2 (en) 2009-12-10 2019-12-10 DePuy Synthes Products, Inc. Bellows-like expandable interbody fusion cage
US10537436B2 (en) 2016-11-01 2020-01-21 DePuy Synthes Products, Inc. Curved expandable cage
US10548741B2 (en) 2010-06-29 2020-02-04 DePuy Synthes Products, Inc. Distractible intervertebral implant
US10639163B2 (en) 2012-10-19 2020-05-05 Tyber Medical, LLC Small joint fixation
US10888433B2 (en) 2016-12-14 2021-01-12 DePuy Synthes Products, Inc. Intervertebral implant inserter and related methods
US10940016B2 (en) 2017-07-05 2021-03-09 Medos International Sarl Expandable intervertebral fusion cage
US10973652B2 (en) 2007-06-26 2021-04-13 DePuy Synthes Products, Inc. Highly lordosed fusion cage
US11344424B2 (en) 2017-06-14 2022-05-31 Medos International Sarl Expandable intervertebral implant and related methods
US11426290B2 (en) 2015-03-06 2022-08-30 DePuy Synthes Products, Inc. Expandable intervertebral implant, system, kit and method
US11426286B2 (en) 2020-03-06 2022-08-30 Eit Emerging Implant Technologies Gmbh Expandable intervertebral implant
US11446156B2 (en) 2018-10-25 2022-09-20 Medos International Sarl Expandable intervertebral implant, inserter instrument, and related methods
US11452607B2 (en) 2010-10-11 2022-09-27 DePuy Synthes Products, Inc. Expandable interspinous process spacer implant
US11510788B2 (en) 2016-06-28 2022-11-29 Eit Emerging Implant Technologies Gmbh Expandable, angularly adjustable intervertebral cages
US11596523B2 (en) 2016-06-28 2023-03-07 Eit Emerging Implant Technologies Gmbh Expandable and angularly adjustable articulating intervertebral cages
US11612491B2 (en) 2009-03-30 2023-03-28 DePuy Synthes Products, Inc. Zero profile spinal fusion cage
US11752009B2 (en) 2021-04-06 2023-09-12 Medos International Sarl Expandable intervertebral fusion cage
US11850160B2 (en) 2021-03-26 2023-12-26 Medos International Sarl Expandable lordotic intervertebral fusion cage
US11911287B2 (en) 2010-06-24 2024-02-27 DePuy Synthes Products, Inc. Lateral spondylolisthesis reduction cage
USRE49973E1 (en) 2013-02-28 2024-05-21 DePuy Synthes Products, Inc. Expandable intervertebral implant, system, kit and method
US12090064B2 (en) 2022-03-01 2024-09-17 Medos International Sarl Stabilization members for expandable intervertebral implants, and related systems and methods

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6632224B2 (en) 1996-11-12 2003-10-14 Triage Medical, Inc. Bone fixation system
US7070601B2 (en) 2003-01-16 2006-07-04 Triage Medical, Inc. Locking plate for bone anchors
WO2004098453A2 (en) 2003-05-06 2004-11-18 Triage Medical, Inc. Proximal anchors for bone fixation system
US7998176B2 (en) 2007-06-08 2011-08-16 Interventional Spine, Inc. Method and apparatus for spinal stabilization
US8608785B2 (en) 2010-06-02 2013-12-17 Wright Medical Technology, Inc. Hammer toe implant with expansion portion for retrograde approach
US9498273B2 (en) 2010-06-02 2016-11-22 Wright Medical Technology, Inc. Orthopedic implant kit
US8945232B2 (en) 2012-12-31 2015-02-03 Wright Medical Technology, Inc. Ball and socket implants for correction of hammer toes and claw toes
US9474561B2 (en) 2013-11-19 2016-10-25 Wright Medical Technology, Inc. Two-wire technique for installing hammertoe implant
AU2014331633B2 (en) 2014-09-18 2017-06-22 Wright Medical Technology, Inc Hammertoe implant and instrument

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2381511A1 (en) * 1977-02-24 1978-09-22 Herbert Timothy IMPROVEMENTS IN SURGICAL SCREWS
SU843967A1 (en) * 1978-07-31 1981-07-07 Предприятие П/Я В-8657 Compression screw
JPH09539A (en) * 1995-06-16 1997-01-07 Asahi Optical Co Ltd Osteosynthesis screw
EP0856293A1 (en) * 1997-02-04 1998-08-05 Patrice Francois Diebold Bone screw for connecting small bone fragments
US6030162A (en) * 1998-12-18 2000-02-29 Acumed, Inc. Axial tension screw

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2381511A1 (en) * 1977-02-24 1978-09-22 Herbert Timothy IMPROVEMENTS IN SURGICAL SCREWS
SU843967A1 (en) * 1978-07-31 1981-07-07 Предприятие П/Я В-8657 Compression screw
JPH09539A (en) * 1995-06-16 1997-01-07 Asahi Optical Co Ltd Osteosynthesis screw
EP0856293A1 (en) * 1997-02-04 1998-08-05 Patrice Francois Diebold Bone screw for connecting small bone fragments
US6030162A (en) * 1998-12-18 2000-02-29 Acumed, Inc. Axial tension screw

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section PQ Week 198216, Derwent World Patents Index; Class P31, AN 1982-E5987E, XP002157748 *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 05 30 May 1997 (1997-05-30) *

Cited By (101)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6648890B2 (en) 1996-11-12 2003-11-18 Triage Medical, Inc. Bone fixation system with radially extendable anchor
US10349991B2 (en) 2001-03-30 2019-07-16 DePuy Synthes Products, Inc. Method and apparatus for bone fixation with secondary compression
US10111695B2 (en) 2001-03-30 2018-10-30 DePuy Synthes Products, Inc. Distal bone anchors for bone fixation with secondary compression
US6511481B2 (en) 2001-03-30 2003-01-28 Triage Medical, Inc. Method and apparatus for fixation of proximal femoral fractures
EP1273272A3 (en) * 2001-07-02 2003-09-24 Depuy France Fixing device for bone portions
US6685706B2 (en) 2001-11-19 2004-02-03 Triage Medical, Inc. Proximal anchors for bone fixation system
EP1482844B1 (en) * 2002-02-15 2010-05-12 John Stanley Taras Distraction pin for fracture fixation
US9993349B2 (en) 2002-06-27 2018-06-12 DePuy Synthes Products, Inc. Intervertebral disc
US9713486B2 (en) 2002-07-19 2017-07-25 DePuy Synthes Products, Inc. Method and apparatus for spinal fixation
FR2881942A1 (en) * 2005-02-14 2006-08-18 Fixano Soc Par Actions Simplif OSTEOSYNTHESIS EQUIPMENT
WO2006084994A1 (en) * 2005-02-14 2006-08-17 Small Bone Innovations International Osteosynthesis equipment
WO2007048267A1 (en) * 2005-10-28 2007-05-03 Medartis, Ag Thread-forming screw
US8403972B2 (en) 2005-10-28 2013-03-26 Medartis Ag Thread-forming screw
US8147531B2 (en) 2006-03-17 2012-04-03 Tornier, Inc. Compression pin with opposed threaded regions
EP1927322A1 (en) * 2006-12-01 2008-06-04 Wright Medical Technology, Inc. Device for positioning tubular bones
US10583015B2 (en) 2006-12-07 2020-03-10 DePuy Synthes Products, Inc. Intervertebral implant
US11273050B2 (en) 2006-12-07 2022-03-15 DePuy Synthes Products, Inc. Intervertebral implant
US11432942B2 (en) 2006-12-07 2022-09-06 DePuy Synthes Products, Inc. Intervertebral implant
US11660206B2 (en) 2006-12-07 2023-05-30 DePuy Synthes Products, Inc. Intervertebral implant
US11642229B2 (en) 2006-12-07 2023-05-09 DePuy Synthes Products, Inc. Intervertebral implant
US10398566B2 (en) 2006-12-07 2019-09-03 DePuy Synthes Products, Inc. Intervertebral implant
US10390963B2 (en) 2006-12-07 2019-08-27 DePuy Synthes Products, Inc. Intervertebral implant
US11712345B2 (en) 2006-12-07 2023-08-01 DePuy Synthes Products, Inc. Intervertebral implant
US11497618B2 (en) 2006-12-07 2022-11-15 DePuy Synthes Products, Inc. Intervertebral implant
WO2008129401A1 (en) * 2007-04-20 2008-10-30 Zrinski Ag Compression screw comprising a wire element
EP1982665A1 (en) 2007-04-20 2008-10-22 Zrinski AG Compression screw with wire element
US10973652B2 (en) 2007-06-26 2021-04-13 DePuy Synthes Products, Inc. Highly lordosed fusion cage
US11622868B2 (en) 2007-06-26 2023-04-11 DePuy Synthes Products, Inc. Highly lordosed fusion cage
US11737881B2 (en) 2008-01-17 2023-08-29 DePuy Synthes Products, Inc. Expandable intervertebral implant and associated method of manufacturing the same
US10433977B2 (en) 2008-01-17 2019-10-08 DePuy Synthes Products, Inc. Expandable intervertebral implant and associated method of manufacturing the same
US10449058B2 (en) 2008-01-17 2019-10-22 DePuy Synthes Products, Inc. Expandable intervertebral implant and associated method of manufacturing the same
DE202008016697U1 (en) 2008-03-20 2009-03-05 Med-Titan Spine Gmbh implant screw
US11712341B2 (en) 2008-04-05 2023-08-01 DePuy Synthes Products, Inc. Expandable intervertebral implant
US10449056B2 (en) 2008-04-05 2019-10-22 DePuy Synthes Products, Inc. Expandable intervertebral implant
US9993350B2 (en) 2008-04-05 2018-06-12 DePuy Synthes Products, Inc. Expandable intervertebral implant
US11707359B2 (en) 2008-04-05 2023-07-25 DePuy Synthes Products, Inc. Expandable intervertebral implant
US11712342B2 (en) 2008-04-05 2023-08-01 DePuy Synthes Products, Inc. Expandable intervertebral implant
US12011361B2 (en) 2008-04-05 2024-06-18 DePuy Synthes Products, Inc. Expandable intervertebral implant
US11617655B2 (en) 2008-04-05 2023-04-04 DePuy Synthes Products, Inc. Expandable intervertebral implant
US12023255B2 (en) 2008-04-05 2024-07-02 DePuy Synthes Products, Inc. Expandable inter vertebral implant
US12440346B2 (en) 2008-04-05 2025-10-14 DePuy Synthes Products, Inc. Expandable intervertebral implant
US11701234B2 (en) 2008-04-05 2023-07-18 DePuy Synthes Products, Inc. Expandable intervertebral implant
US11602438B2 (en) 2008-04-05 2023-03-14 DePuy Synthes Products, Inc. Expandable intervertebral implant
US12097124B2 (en) 2009-03-30 2024-09-24 DePuy Synthes Products, Inc. Zero profile spinal fusion cage
US11612491B2 (en) 2009-03-30 2023-03-28 DePuy Synthes Products, Inc. Zero profile spinal fusion cage
US8216237B2 (en) 2009-06-04 2012-07-10 Edwards Scott G Intramedullary device assembly and associated method
WO2010141183A1 (en) * 2009-06-04 2010-12-09 Olecranail Llc Intramedullary device assembly and associated method
US10500062B2 (en) 2009-12-10 2019-12-10 DePuy Synthes Products, Inc. Bellows-like expandable interbody fusion cage
US11607321B2 (en) 2009-12-10 2023-03-21 DePuy Synthes Products, Inc. Bellows-like expandable interbody fusion cage
DE102010000911A1 (en) 2010-01-14 2011-07-21 Med-Titan Spine GmbH, 91052 Instrument for strengthening human spinal column in area of e.g. vertebral body of sacrum, has stiffener screw designed in head-free manner and comprising self-cutting and/or self-centering mounting thread in area of primal threaded section
US9895236B2 (en) 2010-06-24 2018-02-20 DePuy Synthes Products, Inc. Enhanced cage insertion assembly
US11911287B2 (en) 2010-06-24 2024-02-27 DePuy Synthes Products, Inc. Lateral spondylolisthesis reduction cage
US10966840B2 (en) 2010-06-24 2021-04-06 DePuy Synthes Products, Inc. Enhanced cage insertion assembly
US11872139B2 (en) 2010-06-24 2024-01-16 DePuy Synthes Products, Inc. Enhanced cage insertion assembly
US12318304B2 (en) 2010-06-24 2025-06-03 DePuy Synthes Products, Inc. Lateral spondylolisthesis reduction cage
US10548741B2 (en) 2010-06-29 2020-02-04 DePuy Synthes Products, Inc. Distractible intervertebral implant
US11654033B2 (en) 2010-06-29 2023-05-23 DePuy Synthes Products, Inc. Distractible intervertebral implant
US11452607B2 (en) 2010-10-11 2022-09-27 DePuy Synthes Products, Inc. Expandable interspinous process spacer implant
US8728084B2 (en) 2011-06-27 2014-05-20 Biomet Sports Medicine, Llc Apparatus for repairing bone defects
US8870884B2 (en) 2011-06-27 2014-10-28 Biomet Sports Medicine, Llc Method for repairing bone defects
US9301766B2 (en) 2011-06-27 2016-04-05 Biomet Sports Medicine, Llc Apparatus for repairing bone defects
WO2013003347A1 (en) * 2011-06-27 2013-01-03 Biomet Sports Medicine, Llc System for repairing bone defects
US9693786B2 (en) 2011-06-27 2017-07-04 Biomet Sports Medicine, Llc Method for repairing bone defects
US10058433B2 (en) 2012-07-26 2018-08-28 DePuy Synthes Products, Inc. Expandable implant
US11147680B2 (en) 2012-10-19 2021-10-19 Tyber Medical Llc Small joint fixation
US10639163B2 (en) 2012-10-19 2020-05-05 Tyber Medical, LLC Small joint fixation
USRE49973E1 (en) 2013-02-28 2024-05-21 DePuy Synthes Products, Inc. Expandable intervertebral implant, system, kit and method
US11497619B2 (en) 2013-03-07 2022-11-15 DePuy Synthes Products, Inc. Intervertebral implant
US11850164B2 (en) 2013-03-07 2023-12-26 DePuy Synthes Products, Inc. Intervertebral implant
US10413422B2 (en) 2013-03-07 2019-09-17 DePuy Synthes Products, Inc. Intervertebral implant
US11006991B2 (en) 2013-07-03 2021-05-18 DePuy Synthes Products, Inc. Method and apparatus for sacroiliac joint fixation
US10166056B2 (en) 2013-07-03 2019-01-01 DePuy Synthes Products, Inc. Method and apparatus for sacroiliac joint fixation
EP3122263A4 (en) * 2014-03-28 2017-11-15 Wright Medical Technology, Inc. Retrograded hammertoe compression screw implant and methods of implanting the same
US11426290B2 (en) 2015-03-06 2022-08-30 DePuy Synthes Products, Inc. Expandable intervertebral implant, system, kit and method
US9913727B2 (en) 2015-07-02 2018-03-13 Medos International Sarl Expandable implant
USD884178S1 (en) 2015-09-04 2020-05-12 Life Spine, Inc. Orthopedic implant
US20170065424A1 (en) * 2015-09-04 2017-03-09 Centric Medical, LLC Small Bone Orthopedic Implants
WO2017041065A1 (en) * 2015-09-04 2017-03-09 Centric Medical Llc (A Delaware Limited Liability Company) Small bone orthopedic implants
US11596522B2 (en) 2016-06-28 2023-03-07 Eit Emerging Implant Technologies Gmbh Expandable and angularly adjustable intervertebral cages with articulating joint
US12433757B2 (en) 2016-06-28 2025-10-07 Eit Emerging Implant Technologies Gmbh Expandable, angularly adjustable and articulating intervertebral cages
US11510788B2 (en) 2016-06-28 2022-11-29 Eit Emerging Implant Technologies Gmbh Expandable, angularly adjustable intervertebral cages
US12390343B2 (en) 2016-06-28 2025-08-19 Eit Emerging Implant Technologies Gmbh Expandable, angularly adjustable intervertebral cages
US11596523B2 (en) 2016-06-28 2023-03-07 Eit Emerging Implant Technologies Gmbh Expandable and angularly adjustable articulating intervertebral cages
EP3487415A4 (en) * 2016-07-19 2020-07-29 Tyber Medical LLC FIXING DEVICE FOR SMALL JOINTS
US10537436B2 (en) 2016-11-01 2020-01-21 DePuy Synthes Products, Inc. Curved expandable cage
US10888433B2 (en) 2016-12-14 2021-01-12 DePuy Synthes Products, Inc. Intervertebral implant inserter and related methods
WO2018154225A1 (en) 2017-02-22 2018-08-30 Novastep Osteosynthesis screw comprising an angular index in relation to the screwdriver
US10398563B2 (en) 2017-05-08 2019-09-03 Medos International Sarl Expandable cage
US12427031B2 (en) 2017-05-08 2025-09-30 Medos International Sarl Expandable cage
US11446155B2 (en) 2017-05-08 2022-09-20 Medos International Sarl Expandable cage
US11344424B2 (en) 2017-06-14 2022-05-31 Medos International Sarl Expandable intervertebral implant and related methods
US10940016B2 (en) 2017-07-05 2021-03-09 Medos International Sarl Expandable intervertebral fusion cage
WO2019197913A1 (en) 2018-04-12 2019-10-17 Atlas Copco Airpower, Naamloze Vennootschap Multi-stage compressor unit and method for adjusting the rotational speed of the motors
US11446156B2 (en) 2018-10-25 2022-09-20 Medos International Sarl Expandable intervertebral implant, inserter instrument, and related methods
US11426286B2 (en) 2020-03-06 2022-08-30 Eit Emerging Implant Technologies Gmbh Expandable intervertebral implant
US11806245B2 (en) 2020-03-06 2023-11-07 Eit Emerging Implant Technologies Gmbh Expandable intervertebral implant
US11850160B2 (en) 2021-03-26 2023-12-26 Medos International Sarl Expandable lordotic intervertebral fusion cage
US12023258B2 (en) 2021-04-06 2024-07-02 Medos International Sarl Expandable intervertebral fusion cage
US11752009B2 (en) 2021-04-06 2023-09-12 Medos International Sarl Expandable intervertebral fusion cage
US12447026B2 (en) 2021-04-06 2025-10-21 Medos International Sarl Expandable inter vertebral fusion cage
US12090064B2 (en) 2022-03-01 2024-09-17 Medos International Sarl Stabilization members for expandable intervertebral implants, and related systems and methods

Also Published As

Publication number Publication date
FR2808182B1 (en) 2002-10-31

Similar Documents

Publication Publication Date Title
FR2808182A1 (en) Surgical compression screw for joining two bones together has two threaded portions with different pitches, diameters and angles
EP1378205B1 (en) Compression screw for osteosynthesis
EP2393441B1 (en) Screw for osteosynthesis and arthrodesis
EP0856293B1 (en) Bone screw for connecting small bone fragments
CA2160875A1 (en) Osteosynthesis clip and ancillary material for the installation thereof
EP1273272A2 (en) Fixing device for bone portions
FR2801189A1 (en) Bone shortening implant, especially for metatarsal bones, has anterior portion with anchoring head and posterior portion sliding into bone canal
WO1998040024A1 (en) Screw with threaded head for bone fragment osteosynthesis
FR2908627A1 (en) PROTHETIC OR OSTEOSYNTHESIS DEVICE WITH A SLICED OLIVE
EP0695537B1 (en) Threaded head screw device for setting two bone fragments
FR2788960A1 (en) Threaded pin for connecting bone fragments has two threaded sections of different diameters with smooth section between
WO1996039971A1 (en) Osteosynthesis ring usable in combination with a pin or a screw, and compressing device therefor
FR3000664A3 (en) Screw for treatment of small bone in e.g. hand, has machining screed flush-mounted at sector of proximal turn of thread, and proximal and distal threaded portions arranged on coil for forming step edge in unscrewing direction of screw
FR2971413A1 (en) Cannulated self-tapping screw for osteosynthesis of e.g. hand bone, has threaded distal portion including thread whose proximal edge is inclined toward proximal side of screw and whose outer edge forms sharp edge with distal edge of thread
EP2863818B1 (en) Osteosynthesis screw with reduced radial compression
WO2013175099A1 (en) Self-compressing osteosynthesis screw
WO2009053540A1 (en) Compression screw with threaded head for osteosynthesis
FR3000662A3 (en) Self-drilling and self-tapping bone screw for treatment of e.g. cortical bone, has notch extending from distal edge of screw, along base of cutting face of each tooth, where notch is arranged parallel to axis of screw
EP1234546B1 (en) Protection device for surgical pins
FR3021206A1 (en) OSTEOSYNTHESIS SCREW FOR SOLIDARIZING BONE FRAGMENTS
FR2876897A1 (en) IMPROVEMENT TO IMPLANTABLE SURGICAL SCREWS
EP3320871A1 (en) Equipment for the treatment of a fracture with bracing, for example a fracture of the olecranon or the patella
WO2006084994A1 (en) Osteosynthesis equipment
FR3150707A1 (en) Blade cage suitable for implantation between two vertebrae
FR3102926A1 (en) Intervertebral cage

Legal Events

Date Code Title Description
CJ Change in legal form
ST Notification of lapse

Effective date: 20081231