FR2531332A1 - External fixator for bones. Percutaneous screwed plate - Google Patents
External fixator for bones. Percutaneous screwed plate Download PDFInfo
- Publication number
- FR2531332A1 FR2531332A1 FR8213827A FR8213827A FR2531332A1 FR 2531332 A1 FR2531332 A1 FR 2531332A1 FR 8213827 A FR8213827 A FR 8213827A FR 8213827 A FR8213827 A FR 8213827A FR 2531332 A1 FR2531332 A1 FR 2531332A1
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- FR
- France
- Prior art keywords
- bar
- union
- nut
- external
- plan
- 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.)
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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
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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
La présente invention concerne les instruments du type " fixateur externe 9 permettant de contenir les fractures des os grâce à un dispositif d'union externe qui solidarise des fiches vissées dans les os à-maintenir,
Les dispositifs connus de ce genre pe^vue,lt être distingués en deux catégories : - dans la première categorie dont le type est le fixateur externe
de Judet : les fiches osseuses sont enfonce as à travers des ori
fices perces régulièrement dans un barre d'union dont la section
en U assure une grande rigidité. Ce système permet par ailleurs
de placer chaque fiche à l'endroit idéal pour la meilleurs
fixation. L'inconvénient de cet appareil est ltimpossibilité
de modifier le montage en conservant le même appareil.Son avantage
raide dans la grande rigidité de la fixation des fragments. - dans la deuxième catégorie dont le type est le fixateur de
Hoffman, chaque os est fixe par un groupe de deux ou trois fiches
rapprochées, solidarisées par une poignée externe. Cette poignée
est reliée à celle maintenant les autres fragments par des barres
d'union équipées de rotules permettant de déplacer à volonté les
fragments osseux les uns par rapport aux autres Ce système à
l'avantage de s'adapter à la plupart des situations et de pouvoir
être modifié sans changer d'appareil, Il a l'inconvénient de
n'assurer qu'une rigidité médiocre.The present invention relates to instruments of the "external fixator 9 type making it possible to contain bone fractures by means of an external union device which secures plugs screwed into the bones to be maintained,
Known devices of this kind pe ^ vue, lt be distinguished in two categories: - in the first category whose type is the external fixator
de Judet: the bone plugs are inserted as through holes
fices drilled regularly in a union bar whose section
U-shaped provides great rigidity. This system also allows
to place each card in the ideal place for the best
fixation. The downside of this device is the impossibility
modify the assembly while keeping the same device.
stiff in the great rigidity of the fixation of the fragments. - in the second category, the type of which is the fixer
Hoffman, each bone is fixed by a group of two or three cards
close together, secured by an external handle. This handle
is linked to that now the other fragments by bars
union equipped with ball joints allowing to move at will the
bone fragments relative to each other This system to
the advantage of adapting to most situations and being able
be modified without changing the device, It has the disadvantage of
only provide mediocre rigidity.
Le fixateur externe selon l'invention permet dgéviter les inconvenients des deux catégories-de fixateur.Tl est en effet constitue par une barre d'union comorenant une glissière centrale longitudinale sur laquelle sont fixées les fiches perpendiculairement à la barre d'union, ce qui permet de placer la fiche à l'endroit permettant d'assurer la meilleure rigidité. La fixation de la fiche à la barre d'union est d'autre part constituée par un ensemble boulon-rondelle-écrou creusé au diamètre de la fiche et permettant le serrage simultané de la fiche dans le boulon et du boulon sur la barre d'union. The external fixator according to the invention makes it possible to avoid the drawbacks of the two categories of fixator. It is in fact constituted by a union bar comprising a longitudinal central slide on which the plugs are fixed perpendicular to the union bar, which allows you to place the plug in the place to ensure the best rigidity. The fixing of the plug to the union bar is on the other hand constituted by a bolt-washer-nut assembly hollowed out to the diameter of the plug and allowing the simultaneous tightening of the plug in the bolt and of the bolt on the bar of union.
Ce système permet de déplacer àvolonté : - d'une part les boulons le long de la glissière permettant un assemblage
ais, la compression et la distraction des fragmants.This system allows you to freely move: - on the one hand the bolts along the slide allowing an assembly
ais, compression and distraction of fragmants.
- d'autre part, la ficho a. l'intérieur du boulon permettant ainsi de
déplacer dans un plan le fragment osseux par rapport à la barre
d'union.- on the other hand, the file a. the inside of the bolt allowing
move the bone fragment in a plane relative to the bar
of union.
Selon une première variante, la barre d'union est constituee par une
barre à section en U ou en H ou plate, dont le plat central comporte
une glissière longitudinale ( plan n0 4 ). Le système boulon, écrou de
serrage comprend - un boulon (plan n 1) fileté, creusé selon son axe, dont la tête et
la partie de la tige qui lui fait suite sont creusées d'une ou
plusieurs fentes jouant le rôle de rainure de serrage de la fiche.According to a first variant, the union bar is constituted by a
U or H section bar or flat, with a central flat
a longitudinal slide (plan no. 4). The bolt, nut system
tightening includes - a threaded bolt (plane # 1), hollowed out along its axis, the head and
the part of the stem which follows it is dug with one or
several slots acting as a tightening groove for the plug.
Des plots latéraux situes sous la tata du boulon assurent'lors du
serrage la déformation de celle-ci et la fermeture des rainures de
serrage qui va bloquer la broche dans la tête du boulon (plan de
montage n0 5). Ces plots lateraux d'écartement correspondent à des
rainures dans la barre d'union afin d'empécher la tête du boulon
de tourner lors du serrage.Lateral studs located under the tata of the bolt ensure 'during the
tightening the deformation thereof and the closing of the grooves of
tightening which will block the spindle in the bolt head (plane of
assembly no.5). These lateral spacing studs correspond to
grooves in the union bar to prevent the bolt head
to turn when tightening.
- une rondelle (plan no 2) et un ecrou (plan n0 3) dont le serrage
va d'abord bloquer le boulon sur la barre d'union puis la fiche
dans la tête du boulon (plan de montage n0 5).- a washer (plan no 2) and a nut (plan no 3) whose tightening
will first block the bolt on the union bar then the plug
in the head of the bolt (assembly plan 5).
Salon une deuxième variante, la barre d'union est constitue par un tube cylindrique sur lequel sont fixes des mâchoires pouvant tourner autour du tube. Chaque machoire est articulée sur une deuxième qui -reçoit la fiche du fixateur. Un ecrou permet le serrage simultané
des deux machoires l'une sur l'autre solidarisant la fiche sur le
tube-barre d'union.In a second variant, the union bar is constituted by a cylindrical tube on which are fixed jaws which can rotate around the tube. Each jaw is articulated on a second which receives the plug of the fixator. A nut allows simultaneous tightening
of the two jaws one on the other joining the plug on the
tube-union bar.
Le dispositif présente peut être utilisé dans les cas ou la fixation
externe de l'os est nécessaire : fracture, arthrite, arthrodèse.The present device can be used in cases where the fixation
external bone is necessary: fracture, arthritis, arthrodesis.
Il peut donc être utilisé en chirurgie et en médecine mais également
être appliqué en industrie,en mécanique, ainsi qu'an utilisation
artistique et domestique. It can therefore be used in surgery and medicine but also
be applied in industry, mechanics, as well as in use
artistic and domestic.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8213827A FR2531332A1 (en) | 1982-08-04 | 1982-08-04 | External fixator for bones. Percutaneous screwed plate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8213827A FR2531332A1 (en) | 1982-08-04 | 1982-08-04 | External fixator for bones. Percutaneous screwed plate |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2531332A1 true FR2531332A1 (en) | 1984-02-10 |
Family
ID=9276728
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8213827A Withdrawn FR2531332A1 (en) | 1982-08-04 | 1982-08-04 | External fixator for bones. Percutaneous screwed plate |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2531332A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0240034A1 (en) * | 1986-04-04 | 1987-10-07 | Ulrich Dr.-Ing. Witzel | External fixation for osteosynthesis |
US5047029A (en) * | 1988-06-10 | 1991-09-10 | Synthes (U.S.A.) | Clamp and system for internal fixation |
WO1994000067A1 (en) * | 1992-06-26 | 1994-01-06 | Dietmar Pennig | Osteosynthetic auxiliary for the fixation of bones |
US5304177A (en) * | 1992-06-26 | 1994-04-19 | Dietmar Pennig | Auxiliary device for osteosynthesis |
US5562661A (en) * | 1995-03-16 | 1996-10-08 | Alphatec Manufacturing Incorporated | Top tightening bone fixation apparatus |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1789060A (en) * | 1928-09-29 | 1931-01-13 | King Scheerer Corp | Bone-fracture clamp |
US2214490A (en) * | 1937-02-08 | 1940-09-10 | Albert A Thomas | Bone-setting splint |
FR2405063A1 (en) * | 1977-10-10 | 1979-05-04 | Knoll Ag | DEVICE FOR IMMOBILIZING OR SUPPORTING FRACTURED LIMBS |
US4185623A (en) * | 1978-07-18 | 1980-01-29 | Oganesian Oganes V | Apparatus for restoration of hip joint mobility |
GB2069846A (en) * | 1980-02-19 | 1981-09-03 | Nat Res Dev | External fixation devices for orthopaedic fractures |
-
1982
- 1982-08-04 FR FR8213827A patent/FR2531332A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1789060A (en) * | 1928-09-29 | 1931-01-13 | King Scheerer Corp | Bone-fracture clamp |
US2214490A (en) * | 1937-02-08 | 1940-09-10 | Albert A Thomas | Bone-setting splint |
FR2405063A1 (en) * | 1977-10-10 | 1979-05-04 | Knoll Ag | DEVICE FOR IMMOBILIZING OR SUPPORTING FRACTURED LIMBS |
US4185623A (en) * | 1978-07-18 | 1980-01-29 | Oganesian Oganes V | Apparatus for restoration of hip joint mobility |
GB2069846A (en) * | 1980-02-19 | 1981-09-03 | Nat Res Dev | External fixation devices for orthopaedic fractures |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0240034A1 (en) * | 1986-04-04 | 1987-10-07 | Ulrich Dr.-Ing. Witzel | External fixation for osteosynthesis |
US4920959A (en) * | 1986-04-04 | 1990-05-01 | Ulrich Witzel | External fixture for osteosynthetis |
WO1993012729A1 (en) * | 1986-04-04 | 1993-07-08 | Ulrich Witzel | External fastener for osteosynthesis |
US5047029A (en) * | 1988-06-10 | 1991-09-10 | Synthes (U.S.A.) | Clamp and system for internal fixation |
WO1994000067A1 (en) * | 1992-06-26 | 1994-01-06 | Dietmar Pennig | Osteosynthetic auxiliary for the fixation of bones |
US5304177A (en) * | 1992-06-26 | 1994-04-19 | Dietmar Pennig | Auxiliary device for osteosynthesis |
US5562661A (en) * | 1995-03-16 | 1996-10-08 | Alphatec Manufacturing Incorporated | Top tightening bone fixation apparatus |
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