FR2927790A1 - Dynamic external fixer for treating articular fracture of finger bone of hand, has two half-rings with orifices receiving fixation screws, and bridge with two parts connected by pier inclined at specific degrees, spring and two pulleys - Google Patents
Dynamic external fixer for treating articular fracture of finger bone of hand, has two half-rings with orifices receiving fixation screws, and bridge with two parts connected by pier inclined at specific degrees, spring and two pulleys Download PDFInfo
- Publication number
- FR2927790A1 FR2927790A1 FR0801159A FR0801159A FR2927790A1 FR 2927790 A1 FR2927790 A1 FR 2927790A1 FR 0801159 A FR0801159 A FR 0801159A FR 0801159 A FR0801159 A FR 0801159A FR 2927790 A1 FR2927790 A1 FR 2927790A1
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- FR
- France
- Prior art keywords
- bridge
- rings
- pulleys
- spring
- hand
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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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
- A61B17/66—Alignment, compression or distraction mechanisms
-
- 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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/6416—Devices extending alongside the bones to be positioned with non-continuous, e.g. hinged, pin-clamp connecting element
-
- 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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/6425—Devices extending alongside the bones to be positioned specially adapted to be fitted across a bone joint
-
- 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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
- A61B17/62—Ring frames, i.e. devices extending around the bones to be positioned
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (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
Description
Fixateur externe modulaire dynamique pour ostéosynthèse des petits os, notamment de la main. Pour réaliser ce type de synthèse, on peut utiliser notamment des broches ou bien des fixateurs externes. En ce qui concerne les broches, c'est bien y sont souvent S génératrice de raideur articulaire lorsqu'elle traverse une articulation. En outre, la broche n'assure généralement pas une stabilité complète et doit être protégée par une telle. En ce qui concerne des fixateurs externes, on peut citer le 'La brevet F. R. 911 4260 dont le demandeur de la présente est également titulaire. Ce fixateur comprend des éléments faisant office de mâchoire et recevant des broches d'ancrage pour être fixé dans une position angulaire déterminée de part et d'autre d'un foyer de fracture. hS Les mâchoires peuvent recevoir, après fixation, au moins un corps manqué avec capacité d'orientation angulaire contrôlée et de blocage dans cette position au moyen de tiges d'accouplement. Se fixateur est particulièrement destiné aux membres non .o portant et, compte tenu de son caractère modulable, permet entre autres, l'immobilisation de la fracture avec conservation des mouvements d'articulation. C'est ce type de fixateur donne entièrement satisfaction, il est apparu nécessaire d'y apporter une certaine modification, notamment au niveau de l'articulation de mâchoire et du corps, avec la possibilité d'étendre les applications, tout en ayant pour objectif de simplifier sa conception. Notamment, le problème que se pose de résoudre l'invention et d'obtenir une réduction de fracture de haute qualité une contention stable autorisant une reprise immédiate de la fonction de l'articulation considérée. Pour résoudre le problème était-il conçu, un fixateur modulaire orientable dans tous les plans de l'espace, facile rapide opposé sur une fracture préalablement réduite ; La présente invention concerne un fixateur externe élastique à s'être monté en coopération avec deux portions de os contre lesquels on veut exercer soit une traction soit une distraction, qui trouve une application particulièrement avantageuse pour traiter par distraction de fracture 4e articulaire selon le principe du ligamentotaxis dans lequel d'attraction exercée de part et d'autre de la fracture réduit le déplacement des fragments et les maintiens dans une position susceptible de favoriser le remodelage articule. 11 existait déjà de tel fixateur externe qui trouve des 45 implications notamment dans le domaine de la réparation osseuse du doigt de la main. Un tel fixateur comprend essentiellement deux crochets aptes à être fixé 2S 30 3s M ,15 Z,J respectivement sur les deux portions d'os et relayés par un ressort élastique. Ses crochets sont de deux types : de forme rectiligne si l'on veut exercer une traction, en forme sensiblement de ( z) si l'on veut exercer une distraction au moyen d'une force élastique de traction. Les fixateurs externes connus actuellement ne permettent de moduler l'intensité de la force à exercer entre le dépôt le deux portions d'os, aussi bien en traction qu'en distraction et nécessite au moins le deux organisations différentes selon le type de force que l'on veut exercer. Ce système connu son essentiellement des montages artisanaux, de réalisation délicate et très dépendant des opérateurs. Les résultats de cette technique connue sont aléatoires. Par ailleurs des montages réalisés sont en général encombrants. Il en est de même que d'ici cet externe détourné de mots simple fonction de fixation est rendu mobile. Leur volume est lié au fait que les systèmes de fixation sur lance, ceux exerçant une distraction le maintenant dans l'axe, par exemple du doigt, sont indépendants et occupe chacun d'un volume propre. Aussi la présente invention a-t-elle pour but de réaliser un fixateur externe élastique qui est une seule structure quelle que soit le type de force à exercer entre les deux portions d'os, traction ou distraction et qui permet de moduler %5 l'intensité de cette force, en autorisant la mobilisation en même temps que la destruction plus précisément, pour un fixateur externe élastique entre deux premières et second portions de os, par le fait qu'il comporte : En fig. 2 deux demi-cercles, chaque demi cercle a une forme 3,0 de sandwich, traverse par quatre perçages (2a) (2b) (2c) (2d) et deux orifices (3a), destines à être engagé par deux vis, qui permettent le serrage. Selon fig. 1 et fig. 2.1es deux demi-cercles sont relies par un pont ((5), fondu, qui permet le coulissage de la deuxième 3S partie (5b), comporte des orifices (6) communicantes permettant ainsi le coulissage et la distraction du pont.une fois la longueur souhaite est définie, un plot(7) qui relie les deux parties du pont et permet ainsi aux deux parties de pivoter.Modular dynamic external fixation device for osteosynthesis of small bones, especially of the hand. To achieve this type of synthesis, it is possible to use, in particular, pins or external fixators. With regard to the pins, it is well there are often S generatrix of articular stiffness when it crosses a joint. In addition, the spindle generally does not provide complete stability and must be protected by such. With regard to external fixators, mention may be made of the patent FR R. 911 4260 of which the applicant of the present also holds. This fixator comprises elements acting as a jaw and receiving anchor pins to be fixed in a specific angular position on either side of a fracture focus. The jaws can receive, after fixation, at least one missile body with controlled angular orientation capability and locking in this position by means of coupling rods. Fixator is particularly intended for non-bearing limbs and, given its modular nature, allows inter alia, the immobilization of the fracture with preservation of articulation movements. It is this type of fixator gives full satisfaction, it appeared necessary to make a certain modification, especially at the jaw and the body, with the possibility of extending the applications, while aiming to simplify its design. In particular, the problem that arises to solve the invention and to obtain a fracture reduction of high quality stable contention allowing an immediate recovery of the function of the joint considered. To solve the problem was it designed, a modular fixator orientable in all planes of space, easy fast opposite on a previously reduced fracture; The present invention relates to an elastic external fixator to be mounted in cooperation with two portions of bone against which it is desired to exert either a traction or a distraction, which finds a particularly advantageous application to treat by distraction of articular fracture 4e according to the principle of ligamentotaxis in which the attraction exerted on both sides of the fracture reduces the displacement of the fragments and maintains them in a position likely to promote joint remodeling. There already existed such external fixator which has implications especially in the field of bone repair of the finger of the hand. Such a fixator essentially comprises two hooks capable of being fixed 2S 30 3s M, 15 Z, J respectively on the two bone portions and relayed by an elastic spring. Its hooks are of two types: rectilinear shape if one wants to exert traction, shaped substantially (z) if one wants to exercise a distraction by means of an elastic force of traction. External fixators known at the present time can modulate the intensity of the force to be exerted between the deposition of the two portions of bone, both in traction and in distraction, and requires at least two different organizations according to the type of force that the we want to exercise. This known system is essentially hand-crafted, delicate and highly dependent on operators. The results of this known technique are random. Moreover, montages made are generally bulky. It is the same as here from this external hijacked words simple fixing function is made mobile. Their volume is related to the fact that the attachment systems on the lance, those exercising a distraction on the axis, for example the finger, are independent and each occupies a clean volume. It is therefore an object of the present invention to provide an elastic external fixator which is a single structure irrespective of the type of force to be exerted between the two bone portions, traction or distraction and which makes it possible to modulate intensity of this force, allowing mobilization at the same time as destruction more precisely, for an elastic external fixator between two first and second portions of bone, in that it comprises: In fig. 2 two semicircles, each half circle has a sandwich shape 3.0, passes through four holes (2a) (2b) (2c) (2d) and two orifices (3a), intended to be engaged by two screws, which allow tightening. According to fig. 1 and fig. 2.1es two semicircles are connected by a bridge ((5), molten, which allows the sliding of the second 3S part (5b), has orifices (6) communicating thus allowing the sliding and distraction of the bridge. the desired length is defined, a stud (7) which connects the two parts of the bridge and thus allows the two parts to rotate.
40 Sur l'un des demi-cercles est fixe un pilier (8) incline de 45°, compose d'une poulie (9) qui est destine à recevoir l'extrémité d'un ressort(10), l'autre partie est fixe sur une deuxième poulie(11). 40 On one of the semicircles is fixed a pillar (8) inclined 45 °, consists of a pulley (9) which is intended to receive the end of a spring (10), the other part is fixed on a second pulley (11).
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0801159A FR2927790A1 (en) | 2008-02-26 | 2008-02-26 | Dynamic external fixer for treating articular fracture of finger bone of hand, has two half-rings with orifices receiving fixation screws, and bridge with two parts connected by pier inclined at specific degrees, spring and two pulleys |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0801159A FR2927790A1 (en) | 2008-02-26 | 2008-02-26 | Dynamic external fixer for treating articular fracture of finger bone of hand, has two half-rings with orifices receiving fixation screws, and bridge with two parts connected by pier inclined at specific degrees, spring and two pulleys |
Publications (1)
Publication Number | Publication Date |
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FR2927790A1 true FR2927790A1 (en) | 2009-08-28 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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FR0801159A Pending FR2927790A1 (en) | 2008-02-26 | 2008-02-26 | Dynamic external fixer for treating articular fracture of finger bone of hand, has two half-rings with orifices receiving fixation screws, and bridge with two parts connected by pier inclined at specific degrees, spring and two pulleys |
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FR (1) | FR2927790A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2489471A (en) * | 2011-03-30 | 2012-10-03 | Bath Med Eng Inst | Finger fixator |
RU2514888C1 (en) * | 2013-02-22 | 2014-05-10 | Владимир Трофимович Кипоренко | Graduated distraction device |
RU2535081C1 (en) * | 2013-12-30 | 2014-12-10 | Государственное бюджетное образовательное учреждение высшего профессионального образования "Дальневосточный государственный медицинский университет" Министерства здравоохранения Российской Федерации (ГБОУ ВПО "ДВГМУ" Минздрава России) | Distraction apparatus for finger formation in children |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2416688A1 (en) * | 1978-02-08 | 1979-09-07 | Serole Michelle | Splint for finger and similar fractures - has semicircular supports fitted to pins fixed into bone and linked by longitudinal guides |
US4450834A (en) * | 1979-10-18 | 1984-05-29 | Ace Orthopedic Manufacturing, Inc. | External fixation device |
US20020169447A1 (en) * | 2001-05-09 | 2002-11-14 | Agee John M. | Medical device for correcting finger joint contractures |
WO2008010779A2 (en) * | 2006-07-17 | 2008-01-24 | Ghassan Salameh | External fixation system for treatment of hand and metacarpal fractures |
-
2008
- 2008-02-26 FR FR0801159A patent/FR2927790A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2416688A1 (en) * | 1978-02-08 | 1979-09-07 | Serole Michelle | Splint for finger and similar fractures - has semicircular supports fitted to pins fixed into bone and linked by longitudinal guides |
US4450834A (en) * | 1979-10-18 | 1984-05-29 | Ace Orthopedic Manufacturing, Inc. | External fixation device |
US20020169447A1 (en) * | 2001-05-09 | 2002-11-14 | Agee John M. | Medical device for correcting finger joint contractures |
WO2008010779A2 (en) * | 2006-07-17 | 2008-01-24 | Ghassan Salameh | External fixation system for treatment of hand and metacarpal fractures |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2489471A (en) * | 2011-03-30 | 2012-10-03 | Bath Med Eng Inst | Finger fixator |
RU2514888C1 (en) * | 2013-02-22 | 2014-05-10 | Владимир Трофимович Кипоренко | Graduated distraction device |
RU2535081C1 (en) * | 2013-12-30 | 2014-12-10 | Государственное бюджетное образовательное учреждение высшего профессионального образования "Дальневосточный государственный медицинский университет" Министерства здравоохранения Российской Федерации (ГБОУ ВПО "ДВГМУ" Минздрава России) | Distraction apparatus for finger formation in children |
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