FR2856269A1 - Sectioned sternum closing and maintaining assembly, has retention rod with cylindrical body having diameter lesser than bolt for introducing body into bolt, where retention rod and bolt that are entirely buried in sternum - Google Patents
Sectioned sternum closing and maintaining assembly, has retention rod with cylindrical body having diameter lesser than bolt for introducing body into bolt, where retention rod and bolt that are entirely buried in sternum Download PDFInfo
- Publication number
- FR2856269A1 FR2856269A1 FR0307313A FR0307313A FR2856269A1 FR 2856269 A1 FR2856269 A1 FR 2856269A1 FR 0307313 A FR0307313 A FR 0307313A FR 0307313 A FR0307313 A FR 0307313A FR 2856269 A1 FR2856269 A1 FR 2856269A1
- Authority
- FR
- France
- Prior art keywords
- bolt
- female
- sternum
- male
- 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.)
- Withdrawn
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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
-
- 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
- A61B17/82—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin for bone cerclage
- A61B17/823—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin for bone cerclage for the sternum
Abstract
Description
DESCRIPTIONDESCRIPTION
La présente invention concerne un matériel permettant de rapprocher, solidariser et stabiliser un os qui aurait été sectionné, en l'occurrence celui-ci peut être le sternum. Le matériel objet de la présente invention peut être fabriqué dans un matériau métallique ou non 5 métallique, biodégradable ou non biodégradable, ré habitable ou non ré habitable par de l'os néoformé. Le matériel objet de la présente invention est constitué d'un ensemble, décliné en différents dispositifs, l'un " femelle " et l'autre " mâle ", pouvant être utilisés conjointement à d'autres dispositifs connus ou pouvant être utilisé en compléments de système actuellement utilisés pour maintenir un ou plusieurs fragments osseux ou, être utilisés seuls. The present invention relates to a material making it possible to bring together, secure and stabilize a bone which has been severed, in this case it may be the sternum. The material object of the present invention can be made of a metallic or non-metallic material, biodegradable or non-biodegradable, re-habitable or non-re-habitable with newly formed bone. The material object of the present invention consists of an assembly, declined in different devices, one "female" and the other "male", which can be used in conjunction with other known devices or which can be used in addition to system currently used to maintain one or more bone fragments or, be used alone.
Dans son usage principal, la présente invention est dédiée à la fermeture et au maintien de l'os sternum, sectionné lors d'une sternotomie. In its main use, the present invention is dedicated to the closure and maintenance of the sternum bone, cut during a sternotomy.
Dans son descriptif, I'invention est décrite pour une utilisation à l'os sternum, mais elle pourrait s'appliquer à d'autres sections osseuses. In its description, the invention is described for use in the sternum bone, but it could be applied to other bone sections.
Etat de l'art: Actuellement, la section du sternum réalisée chirurgicalement est réduite 15 et fixée, en fin d'intervention, soit par plaque, soit par un mécanisme interne de type fixateur, soit par crochets, soit par agrafes à mémoire de forme, soit par câble ou fil de cerclage. Pour le sternum, la rapidité de la technique de cerclage fait que cette méthode est la plus généralement utilisée. Le fil de cerclage est passé de part et d'autre du sternum et les deux extrémités du fil sont serrées et nouées jusqu'à contention correcte des deux sections osseuses du sternum. State of the art: Currently, the section of the sternum performed surgically is reduced 15 and fixed, at the end of the intervention, either by plate, or by an internal mechanism of the fixative type, or by hooks, or by shape memory clips. , either by cable or strapping wire. For the sternum, the speed of the strapping technique makes this method the most generally used. The strapping wire is passed on either side of the sternum and the two ends of the wire are tightened and knotted until the two bony sections of the sternum are properly contained.
Généralement, il est nécessaire d'utiliser plusieurs brins de fil pour assurer un montage correct. Generally, it is necessary to use multiple strands of wire to ensure proper mounting.
L'inconvénient de cette méthode réside dans le fait que le fil - qui pour des raisons pratiques est de quelques dixièmes de millimètres - a tendance à sectionner l'os au niveau du contact fil/os. D'autre par, en cas de ré intervention, le traumatisme osseux dû à l'ablation des fils peut affecter la qualité du support osseux. Par les moyens utilisés actuellement, la stabilité du 25 montage reste aléatoire, des micromouvements sont générés par le patient, lesquels micro mouvements favorisent la pénétration des tissus osseux par le système de contention utilisé. The disadvantage of this method is that the wire - which for practical reasons is a few tenths of a millimeter - tends to cut the bone at the wire / bone contact. On the other hand, in case of re-intervention, the bone trauma due to the ablation of the wires can affect the quality of the bone support. By the means currently used, the stability of the assembly remains random, micromovements are generated by the patient, which micro movements promote the penetration of bone tissue by the compression system used.
Descriptif des dispositifs de la présente invention: L'ensemble décrit est constitué de deux dispositifs, I'un " femelle " et l'autre " mâle "; cet ensemble, objet de la présente invention remédie aux problèmes liés aux méthodes actuellement utilisées, tout en optimisant la 30 stabilité du montage et en favorisant la consolidation entre les fragments osseux. Description of the devices of the present invention: The assembly described consists of two devices, one "female" and the other "male"; this assembly, object of the present invention overcomes the problems associated with the methods currently used, while optimizing the stability of the assembly and promoting consolidation between the bone fragments.
La présente invention concerne un ensemble constitué de deux dispositifs, I'un " femelle " et l'autre " mâle " fabriqué soit en matériau métallique ou non métallique, ré habitable ou non ré habitable par les ostéoblastes et facilement extractible dans le cas ou une ré intervention serait exigée. L' ensemble constitué de deux dispositifs, I'un <" femelle " et l'autre " mâle ", partie de la présente invention peut être utilisés en compléments de systèmes actuellement employés pour maintenir un ou plusieurs fragments osseux ou, être utilisé seul. The present invention relates to an assembly consisting of two devices, one "female" and the other "male" made either of metallic or non-metallic material, re-habitable or non-re-habitable by osteoblasts and easily extractable in the case where a re intervention would be required. The assembly consisting of two devices, one "female" and the other "male", part of the present invention can be used in addition to the systems currently used to maintain one or more bone fragments or, be used alone.
Le premier des dispositifs de l'ensemble, concerne une cheville (Figure 1) , appelée dispositif " femelle ", tel que décrite ci-après. Le deuxième dispositif de l'ensemble, concerne une tige de contention (Figure 2), appelée dispositif " mâle ", tel que décrite ci-après. The first of the devices in the assembly relates to a dowel (Figure 1), called a "female" device, as described below. The second device of the assembly relates to a compression rod (Figure 2), called a "male" device, as described below.
Le premier des dispositifs de l'ensemble (Figure 1), appelée dispositif " femelle ", dispose de plusieurs branches ou ailettes (1), les quelles branches ou ailettes se déploient en expansion lors de l'introduction forcée du dispositif " mâle ", et ce grâce aux fentes (2) existants dans la cheville. Un trou cylindrique (3) évite que la cheville ne se déchire lors de son expansion. La cheville " femelle " peut disposer d'un ou de plusieurs orifices pour l'introduction du dispositif 15 mâle. The first of the devices of the assembly (FIG. 1), called the "female" device, has several branches or fins (1), which branches or fins deploy in expansion during the forced introduction of the "male" device, and this thanks to the slots (2) existing in the ankle. A cylindrical hole (3) prevents the pin from tearing during its expansion. The "female" pin may have one or more orifices for the introduction of the male device.
L'utilisation de deux ou plusieurs dispositifs " mâle " va favoriser la stabilisation du dispositif " femelle " et éviter toute rotation du dispositif " femelle " dans l'os. The use of two or more "male" devices will promote the stabilization of the "female" device and avoid any rotation of the "female" device in the bone.
Cette cheville " femelle " peut être de forme générale cylindrique, carrée, rectangulaire, trapézoïdale afin de s'adapter au mieux dans le logement osseux qui lui aura été préparé. This "female" pin can be of generally cylindrical, square, rectangular, trapezoidal shape in order to best adapt to the bone housing which has been prepared for it.
Après préparation du support osseux, le dispositif " femelle ", se glisse dans l'épaisseur de l'os afin de diminuer les mouvements de torsion et de cisaillement. Le dispositif " femelle " est introduit perpendiculairement à la section osseuse. Il est nécessaire de positionner dans chacune des deux tranches osseuses au moins un dispositif " femelle ". De ce fait, chaqu'un des deux dispositifs " femelles ", positionnés en vis-à-vis, seront donc placés en regard l'un de 25 I'autre. Ils recevront lors de la fermeture de l'ostéotomie le dispositif " mâle " qui mettra en expansion (4) chaqu'un des deux dispositifs " femelles ". De ce fait, la stabilisation des sections osseuses est garantie par le montage. Le dispositif " femelle " est constitué d'un élément, ayant de préférence, la forme d'un coin (5) dont les ailettes souples (1) peuvent s'écarter pour augmenter leur rétention dans le matériau osseux. Les ailettes sont garnies de 30 crans (6) qui vont eux aussi favoriser l'accroche de la cheville. Le dispositif " femelle " est positionné perpendiculairement au plan de la coupe osseuse. Une fois les deux sections osseuses rassemblées, les dispositifs " femelles " seront présentés en regard l'un de l'autre et solidarisés entre eux par le dispositif " mâle ". Cet élément en forme de coin est évidé en son centre, dans l'axe de la pièce (7), I'intérieur du cylindre est garni d'un système de rétention; tel qu'une spirale (8), ou un pas de vis ou une crémaillère. Ce système de rétention (8) va servir de guide au dispositif " mâle " et mettre en rétention ce dispositif " mâle " lorsqu'il sera introduit dans chacun des dispositifs " femelles ". Une fois emboîtés intimement, les deux dispositifs " femelle " et " mâle " sont rendus solidaires et leur montage maintien les deux sections de l'os sternum en place. After preparation of the bone support, the "female" device slides into the thickness of the bone in order to reduce the twisting and shearing movements. The "female" device is introduced perpendicular to the bone section. It is necessary to position in each of the two bony sections at least one "female" device. Therefore, each of the two "female" devices, positioned facing each other, will therefore be placed opposite one another. When the osteotomy is closed, they will receive the "male" device which will expand (4) each of the two "female" devices. Therefore, the stabilization of the bone sections is guaranteed by the assembly. The "female" device consists of an element, preferably having the shape of a wedge (5) from which the flexible fins (1) can move apart to increase their retention in the bone material. The fins are lined with 30 notches (6) which will also promote the attachment of the ankle. The "female" device is positioned perpendicular to the plane of the bone section. Once the two bone sections have been brought together, the "female" devices will be presented facing each other and joined together by the "male" device. This wedge-shaped element is hollowed out in its center, in the axis of the part (7), the interior of the cylinder is furnished with a retention system; such as a spiral (8), or a thread or a rack. This retention system (8) will serve as a guide for the "male" device and will retain this "male" device when it is introduced into each of the "female" devices. Once tightly fitted, the two "female" and "male" devices are made integral and their assembly holds the two sections of the sternum bone in place.
Le second dispositif (Figure 2) de l'ensemble, appelé le dispositif " mâle ", est constitué d'une tige de contention, dont le corps de forme générale cylindrique est d'un diamètre suffisamment inférieur par rapport au dispositif " femelle " afin de favoriser son introduction dans le dispositif " femelle ". La tige de contention (9) du dispositif " mâle ", est garnie d'une spirale ou d'une crémaillère (10) qui peut s'emboîter dans chacune des deux chevilles des dispositifs " femelles " introduites préalablement dans l'os du sternum. Lors de la réduction des deux sections osseuses du sternum, la tige de contention (9) du dispositif " mâle " fait s'ouvrir les branches ou ailettes (1) des dispositifs " femelles " permettant à celles-ci de se fixer dans la masse osseuse du sternum. The second device (Figure 2) of the assembly, called the "male" device, consists of a compression rod, the generally cylindrical body of which is of sufficiently smaller diameter compared to the "female" device so to favor its introduction into the "female" device. The compression rod (9) of the "male" device is fitted with a spiral or a rack (10) which can fit into each of the two ankles of the "female" devices previously introduced into the sternum bone . When reducing the two bony sections of the sternum, the compression rod (9) of the "male" device causes the branches or fins (1) of the "female" devices to open, allowing them to be fixed in the mass sternum bone.
La tige de contention est équipée en son milieu d'un méplat ou d'un trou (11) pour faciliter la 20 manipulation de la tige de contention. The compression rod is fitted in the middle with a flat or a hole (11) to facilitate handling of the compression rod.
La présente invention est représentée graphiquement pour chacun des dispositifs décrits: Figure 1: vue en perspective du dispositif " femelle ". The present invention is represented graphically for each of the devices described: Figure 1: perspective view of the "female" device.
Figure 2 vue en perspective du dispositif " mâle ". Figure 2 perspective view of the "male" device.
Figure 3: Figure pour l'abrégé, vue en perspective des dispositifs " femelle " et " mâle ". Figure 3: Figure for the abstract, perspective view of the "female" and "male" devices.
L'invention n'est pas limitée aux formes de réalisation représentées dans les dessins annexés. The invention is not limited to the embodiments shown in the accompanying drawings.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0307313A FR2856269A1 (en) | 2003-06-18 | 2003-06-18 | Sectioned sternum closing and maintaining assembly, has retention rod with cylindrical body having diameter lesser than bolt for introducing body into bolt, where retention rod and bolt that are entirely buried in sternum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0307313A FR2856269A1 (en) | 2003-06-18 | 2003-06-18 | Sectioned sternum closing and maintaining assembly, has retention rod with cylindrical body having diameter lesser than bolt for introducing body into bolt, where retention rod and bolt that are entirely buried in sternum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2856269A1 true FR2856269A1 (en) | 2004-12-24 |
Family
ID=33484519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0307313A Withdrawn FR2856269A1 (en) | 2003-06-18 | 2003-06-18 | Sectioned sternum closing and maintaining assembly, has retention rod with cylindrical body having diameter lesser than bolt for introducing body into bolt, where retention rod and bolt that are entirely buried in sternum |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2856269A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015136212A1 (en) * | 2014-03-11 | 2015-09-17 | Novastep | Surgical implant for merging two bone portions, and clamping aid for clamping such a surgical implant |
-
2003
- 2003-06-18 FR FR0307313A patent/FR2856269A1/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015136212A1 (en) * | 2014-03-11 | 2015-09-17 | Novastep | Surgical implant for merging two bone portions, and clamping aid for clamping such a surgical implant |
| FR3018441A1 (en) * | 2014-03-11 | 2015-09-18 | Novastep | SURGICAL IMPLANT FOR MERGING BETWEEN TWO PORTIONS OF BONE AND ANCILLARY CLAMP FOR TIGHTENING SUCH A SURGICAL IMPLANT |
| US10098676B2 (en) | 2014-03-11 | 2018-10-16 | Novastep | Surgical implant for fusion between two bone portions and a clamping ancillary for clamping such a surgical implant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |
Effective date: 20080229 |