FR2760628A1 - SCREW WITH THREADED HEAD FOR OSTEOSYNTHESIS OF BONE FRAGMENTS - Google Patents
SCREW WITH THREADED HEAD FOR OSTEOSYNTHESIS OF BONE FRAGMENTS Download PDFInfo
- Publication number
- FR2760628A1 FR2760628A1 FR9703158A FR9703158A FR2760628A1 FR 2760628 A1 FR2760628 A1 FR 2760628A1 FR 9703158 A FR9703158 A FR 9703158A FR 9703158 A FR9703158 A FR 9703158A FR 2760628 A1 FR2760628 A1 FR 2760628A1
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- Prior art keywords
- screw
- thread
- conical
- proximal
- pitch
- Prior art date
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 15
- 239000012634 fragment Substances 0.000 title claims abstract description 12
- 230000006835 compression Effects 0.000 description 11
- 238000007906 compression Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 206010061159 Foot deformity Diseases 0.000 description 1
- 208000001963 Hallux Valgus Diseases 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000000560 biocompatible material Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 210000002683 foot Anatomy 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000001872 metatarsal bone Anatomy 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 210000000457 tarsus Anatomy 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—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, 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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
-
- 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
- A61B17/84—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, 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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/864—Pins or screws or threaded wires; nuts therefor hollow, e.g. with socket or cannulated
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
Description
Vis à tête filetée pour I'ostéosynthèse de fragments d'os. Screw with threaded head for osteosynthesis of bone fragments.
La présente invention concerne une vis à tête filetée pour l'osthéosynthêse ou coaptation de fragments d'os. The present invention relates to a screw with a threaded head for osteosynthesis or coaptation of bone fragments.
L'objet de l'invention est plus particulièrement destiné à permettre la coaptation des petits fragments d'os tel que ceux du pied ou de la main. Dans cette application intéressante, la vis selon l'invention permet notamment de réaliser des ostéosynthéses des os du carpe, du tarse, du métacarpien, du métatarsien, de la malléole, etc. Elle est plus particulièrement avantageuse pour la mise en oeuvre des techniques d'orthopédie telle que le traitement de l'Hallux Valgus par l'ostéotomie
Scarf, ou d'autres techniques d'ostéotomie, par exemple selon la méthode de Weil.The object of the invention is more particularly intended to allow the coaptation of small bone fragments such as those of the foot or the hand. In this interesting application, the screw according to the invention makes it possible in particular to produce osteosyntheses of the bones of the carpus, tarsus, metacarpal, metatarsal, malleolus, etc. It is more particularly advantageous for the implementation of orthopedic techniques such as the treatment of Hallux Valgus by osteotomy
Scarf, or other osteotomy techniques, for example according to the method of Weil.
Toutefois, on souligne que la vis selon l'invention peut également être utilisée pour réaliser la réduction/compression de fragments d'os appartenant à d'autres parties du squelette. However, it is emphasized that the screw according to the invention can also be used to carry out the reduction / compression of bone fragments belonging to other parts of the skeleton.
Il existe, sur le marché, des vis canulées ou non pour l'ostéosynthèse des petits fragments d'os. There are cannulated or non-cannulated screws on the market for osteosynthesis of small bone fragments.
Un premier type de ces vis que l'on peut distinguer comme étant des vis à simple filetage assez proche des vis ordinaires, est constitué d'une partie distale filetée et d'une partie proximale pouvant être soit une tête à appui plan, soit une tête à appui conique. Dans les deux cas, I'effort de compression dépend du nombre de tours imposés à la vis, une fois que la tête se trouve placée en appui sur la corticale supérieure. Le chirurgien doit ainsi apprécier le couple de serrage nécessaire afin d'estimer l'effort de compression transmis aux fragments d'os. On conçoit que toute erreur d'appréciation peut avoir des conséquences fâcheuses sur le résultat de l'intervention de réduction/compression ou pour l'intégrité des fragments d'os dont on souhaite réaliser l'ostéosynthèse. A first type of these screws which can be distinguished as being single-threaded screws fairly close to ordinary screws, consists of a threaded distal part and a proximal part which can be either a head with plane support, or a tapered head. In both cases, the compression force depends on the number of turns imposed on the screw, once the head is placed in abutment on the upper cortex. The surgeon must therefore assess the tightening torque necessary in order to estimate the compression force transmitted to the bone fragments. It is understandable that any error of appreciation can have unfortunate consequences on the result of the reduction / compression intervention or on the integrity of the bone fragments of which one wishes to perform osteosynthesis.
En outre, ce type de vis ne génère aucun effet anti-desserrage. In addition, this type of screw does not generate any anti-loosening effect.
On connait aussi (US-A-4. 175.555, FR-A-2.699.065, EP-0.695.537, des vis d'ostéosynthèse à double filetage et à pas différenciés. Ces vis sont constituées d'une partie distale filetée et d'une partie proximale ou tête également filetée, mais dont le pas est légèrement inférieur à celui de la partie distale, ce qui procure ainsi, lors du vissage, un effet de compression entre les deux fragments d'os à maintenir l'un contre l'autre. Toutes ces vis comprennent une partie proximale ou tête pourvue d'un filet hélicoïdal cylindrique. We also know (US-A-4. 175.555, FR-A-2.699.065, EP-0.695.537, osteosynthesis screws with double thread and with differentiated pitch. These screws consist of a threaded distal part and a proximal part or head also threaded, but whose pitch is slightly less than that of the distal part, which thus provides, during screwing, a compression effect between the two bone fragments to be held against one the other All these screws include a proximal part or head provided with a cylindrical helical thread.
Bien que d'un diamètre supérieur à celui du corps, les têtes filetées de ce type de vis qui ne comportent en général que trois ou quatre spires, n'offrent qu'une faible résistance mécanique axiale. En conséquence, il est difficile d'obtenir un effort de compression satisfaisant sur des os de mauvaise qualité, avec le risque de voir la tête arracher le taraudage proximal de l'os. Although of a diameter greater than that of the body, the threaded heads of this type of screw which generally have only three or four turns, offer only a low axial mechanical strength. Consequently, it is difficult to obtain a satisfactory compression force on poor quality bones, with the risk of the head tearing off the proximal tapping of the bone.
En outre, une fois mise en place, une vis de ce type ne peut pas être remplacée en lieu et place par une autre, en situation per-opératoire, au cas ou un contrôle radiographique révèlerait que la longueur de la vis utilisée n'est pas conforme à celle qui est souhaitable. In addition, once inserted, a screw of this type cannot be replaced in place of another by an intraoperative situation, in case an X-ray inspection reveals that the length of the screw used is not not consistent with that which is desirable.
L'invention a notamment pour but de remédier aux inconvénients susmentionnés des vis connues à simple filetage ou à double filetage et à pas différenciés. The invention particularly aims to remedy the aforementioned drawbacks of known screws with single thread or double thread and with differentiated pitch.
Selon l'invention, cet objectif est atteint grâce à une vis comprenant une partie distale pourvue d'un filetage cylindrique et une partie proximale ou tête dotée d'un filetage conique dont le diamètre croit en direction de l'extrémité proximale de ladite vis. According to the invention, this objective is achieved by a screw comprising a distal part provided with a cylindrical thread and a proximal or head part provided with a conical thread whose diameter increases in the direction of the proximal end of said screw.
Selon une deuxième disposition caractéristique de l'invention, le pas du filetage conique de la partie proximale est plus petit que celui du filetage cylindrique de la partie distale. According to a second characteristic arrangement of the invention, the pitch of the conical thread of the proximal part is smaller than that of the cylindrical thread of the distal part.
Le double filetage à pas différenciés permet une réduction/compression contrôlée ou "pré-programmée"
La tête conique filetée assure un bon appui proximal tout en étant enfouie, ce qui autorise l'utilisation des vis selon l'invention en zone articulaire. La tête conique filetée permet aussi de substituer une vis en situation per-opératoire, par une vis de longueur différente. Dans ce cas, la nouvelle vis peut se comporter comme une vis à tête conique et à simple filetage distal.Double thread with differentiated pitch allows controlled or "pre-programmed" reduction / compression
The threaded conical head provides good proximal support while being buried, which allows the use of the screws according to the invention in the articular zone. The threaded conical head also makes it possible to replace a screw in an intraoperative situation, by a screw of different length. In this case, the new screw can behave like a conical head screw with a single distal thread.
Les buts, caractéristiques et avantages ci-dessus, et d'autres encore,
ressortiront mieux de la description qui suit et des dessins annexés dans lesquels:
La figure 1 est une vue en élévation d'un premier exemple de configuration d'une vis d'ostéosynthèse selon l'invention, plus spécialement adaptée à l'exécution d'ostéotomies selon la technique de Weil.The above goals, features and benefits, and more,
will emerge more clearly from the description which follows and from the appended drawings in which:
Figure 1 is an elevational view of a first example of configuration of an osteosynthesis screw according to the invention, more particularly adapted to the execution of osteotomies according to the Weil technique.
La figure 2 est une vue en coupe axiale de cette vis. Figure 2 is an axial sectional view of this screw.
La figure 3 montre le profil du filet du filetage conique de la partie proximale de la vis. Figure 3 shows the profile of the thread of the conical thread of the proximal part of the screw.
La figure 4 est une vue en élévation d'un deuxième exemple de conformation d'une vis d'ostéosynthèse, plus spécialement appropriée à la réalisation d'ostéotomies phalangiennes. Figure 4 is an elevational view of a second example of conformation of an osteosynthesis screw, more particularly suitable for the production of phalangeal osteotomies.
La figure 5 est une vue en coupe axiale de cette vis. Figure 5 is an axial sectional view of this screw.
La figure 6 est une vue en élévation d'un troisième exemple de conformation d'une vis d'ostéosynthèse, plus spécialement destinée à l'ostéotomie de Scarf. Figure 6 is an elevational view of a third example of conformation of an osteosynthesis screw, more specifically intended for Scarf osteotomy.
La figure 7 est une vue en coupe axiale de cette vis. Figure 7 is an axial sectional view of this screw.
On se réfère auxdits dessins pour décrire des exemples avantageux, bien que nullement limitatifs, de réalisation de la vis destinée à permettre la coaptation, avec mise en compression, de deux fragments d'os, selon l'invention. Reference is made to said drawings to describe advantageous examples, although in no way limitative, of making the screw intended to allow the coaptation, with compression, of two bone fragments, according to the invention.
Cette vis peut être réalisée en tout matériau biocompatible tel que le titane, ou en matériau à la fois biocompatible et biodégradable. This screw can be made of any biocompatible material such as titanium, or of material that is both biocompatible and biodegradable.
Selon une première disposition caractéristique de l'invention, cette vis est remarquable en ce qu'elle comporte une partie distale I pourvue d'un filetage cylindrique 2 et une partie proximale ou tête 3 dotée d'un filetage conique 4 dont le diamètre croit en direction de l'extrémité proximale de ladite vis. According to a first characteristic arrangement of the invention, this screw is remarkable in that it comprises a distal part I provided with a cylindrical thread 2 and a proximal or head part 3 provided with a conical thread 4 whose diameter increases in direction of the proximal end of said screw.
Les génératrices du filetage conique 4 de la partie proximale 3, forment, par exemple, un angle a de l'ordre de 16 , par rapport à l'axe de la vis. The generatrices of the conical thread 4 of the proximal part 3 form, for example, an angle a of the order of 16, relative to the axis of the screw.
D'autre part, ce filetage conique comprend, par exemple, trois à cinq spires. On the other hand, this conical thread includes, for example, three to five turns.
Le côté supérieur 4a du filet du filetage conique 4 est perpendiculaire ou sensiblement perpendiculaire (pente de l'ordre de 3 ) à l'axe A de la vis, tandis que son côté inférieur 4b est orienté obliquement par rapport audit axe (figure 3). The upper side 4a of the thread of the conical thread 4 is perpendicular or substantially perpendicular (slope of the order of 3) to the axis A of the screw, while its lower side 4b is oriented obliquely relative to said axis (Figure 3) .
D'autre part, le côté inférieur 4b forme un angle (ss) de l'ordre de 35 à 40 , de préférence de 38 , avec le côté supérieur 4a.On the other hand, the lower side 4b forms an angle (ss) of the order of 35 to 40, preferably 38, with the upper side 4a.
De manière préférée, les parties distale I et proximale 2 filetées, sont séparées par un tronçon cylindrique lisse 5. Preferably, the distal I and proximal 2 threaded parts are separated by a smooth cylindrical section 5.
Les vis selon l'invention ont une longueur variable en fonction des interventions auxquelles elles sont destinées, cette longueur étant, par exemple, comprise entre 10 et 28 mm. The screws according to the invention have a variable length depending on the interventions for which they are intended, this length being, for example, between 10 and 28 mm.
A titre de simple exemple, - la partie distale 1 d'une vis pour l'ostéotomie de
Weil, peut avoir une longueur correspondant à environ 46 % de la longueur totale de la vis , - son tronçon lisse 5, une longueur correspondant à environ 31 % de la longueur de la vis , - et sa partie proximale 3 à filetage conique, une longueur correspondant à 23 % de la longueur de la vis. Ainsi, si l'on considère, à titre d'exemple seulement, une vis pour l'ostéotomie de Weil d'une longueur de 13 mm, la longueur de sa partie distale pourra être de 6 mm, celle de son tronçon lisse de 4 mm, et celle de sa tête conique filetée de 3 mm.As a simple example, - the distal part 1 of a screw for the osteotomy of
Weil, can have a length corresponding to approximately 46% of the total length of the screw, - its smooth section 5, a length corresponding to approximately 31% of the length of the screw, - and its proximal part 3 with conical thread, a length corresponding to 23% of the length of the screw. Thus, if we consider, by way of example only, a screw for the Weil osteotomy with a length of 13 mm, the length of its distal part may be 6 mm, that of its smooth section of 4 mm, and that of its conical threaded head of 3 mm.
Selon une autre disposition caractéristique de l'invention, le pas P du filetage conique 4 de la partie proximale ou tête conique 3 de la vis, a une hauteur légèrement inférieure à celle du pas P' du filetage cylindrique 2 de la partie distale 1 de ladite vis. According to another characteristic arrangement of the invention, the pitch P of the conical thread 4 of the proximal part or conical head 3 of the screw, has a height slightly less than that of the pitch P 'of the cylindrical thread 2 of the distal part 1 of said screw.
A titre d'exemples seulement:
- le pas P du filetage proximal conique 4 des vis à compression autoperforantes pour la mise en oeuvre de la technique de Weil, qui ont généralement une longueur comprise entre 11 et 14 mm, peut avoir une hauteur de 0,6 mm, alors que le pas P' de leur filetage distal cylindrique 2, peut être de 0,8 mm,
- le pas P du filetage proximal conique 4 des vis canulées à compression pour ostéotomie phalangienne ou pour ostéosynthèse du scafoïde, qui ont généralement une longueur comprise entre 12 et 28 mm, peut avoir une hauteur de 0,8 mm, alors que le pas P' de leur filetage distal cylindrique 2, peut être de I mm,
- le pas P du filetage proximal conique 4 des vis canulées à compression pour la technique Scarf, qui ont généralement une longueur comprise entre 10 et 22 mm, peut avoir une hauteur de 1,05 mm, alors que le pas P' de leur filetage distal cylindrique 2, présente une hauteur de 1,25 mm.As examples only:
- the pitch P of the conical proximal thread 4 of the self-drilling compression screws for the implementation of the Weil technique, which generally have a length of between 11 and 14 mm, can have a height of 0.6 mm, while the pitch P 'of their distal cylindrical thread 2, may be 0.8 mm,
- the pitch P of the conical proximal thread 4 of the cannulated compression screws for phalangeal osteotomy or for osteosynthesis of the scafoid, which generally have a length of between 12 and 28 mm, can have a height of 0.8 mm, while the pitch P 'of their distal cylindrical thread 2, can be I mm,
- the pitch P of the conical proximal thread 4 of the cannulated compression screws for the Scarf technique, which generally have a length of between 10 and 22 mm, can have a height of 1.05 mm, while the pitch P 'of their thread distal cylindrical 2, has a height of 1.25 mm.
Il résulte des exemples qui précèdent que la différence de la hauteur entre les pas P et P' peut être avantageusement de l'ordre de 0,20 mm. It follows from the above examples that the difference in height between the steps P and P 'can advantageously be of the order of 0.20 mm.
La tête de la vis est conformée de façon à permettre son entraînement en rotation au moyen d'un instrument approprié et standard. Par exemple, la tête 3 de la vis est pourvue, de manière connue en soi, d'un creux à six pans axial 6, destiné à recevoir l'extrémité d'entraînement à six pans, d'un outil ou organe de manoeuvre adéquat (tournevis ou autre), par exemple à 6 pans de 1,5 mm sur plats pour Weil et ostéotomie phalangienne, ou 6 pans de 2 mm sur plats pour Scarf. The head of the screw is shaped so as to allow it to be driven in rotation by means of an appropriate and standard instrument. For example, the head 3 of the screw is provided, in a manner known per se, with an axial hexagonal recess 6, intended to receive the hexagonal drive end, with a suitable tool or operating member. (screwdriver or other), for example with 1.5 mm hexagon on flats for Weil and phalangeal osteotomy, or 2 mm hexagon on flats for Scarf.
La vis d'ostéosynthèse selon l'invention peut être de type "canulée", c'est-àdire munie d'un canal axial 7 s'étendant d'une extrémité à l'autre de ladite vis, pour le passage d'une broche. The osteosynthesis screw according to the invention can be of the "cannulated" type, that is to say provided with an axial channel 7 extending from one end to the other of said screw, for the passage of a brooch.
Le filetage conique 4 de la tête de la vis peut avantageusement comporter au moins une entaille 8 orientée suivant l'une de ses génératrices, et conférant à la tête conique 3 de la vis une action d'auto-taraudage lors du vissage, de manière préférée, le filetage conique présente deux ou trois entailles 8 régulièrement espacées. The conical thread 4 of the head of the screw may advantageously comprise at least one notch 8 oriented along one of its generatrices, and giving the conical head 3 of the screw a self-tapping action during screwing, so preferred, the conical thread has two or three notches 8 regularly spaced.
On souligne cependant aussi que le filetage conique 4 pourrait comporter plus de deux ou trois entailles, par exemple quatre entailles espacées de 90"
D'autre part, de manière connue en soi, le filetage cylindrique 2 de la partie distale 1, pourrait également comporter, au moins sur une portion de sa longueur, une ou plusieurs entailles 9 (figure 4) orientée(s) parallèlement à l'axe de la vis et coupant deux ou trois spires extrêmes de ladite vis. However, it is also emphasized that the conical thread 4 could comprise more than two or three notches, for example four notches spaced 90 "
On the other hand, in a manner known per se, the cylindrical thread 2 of the distal part 1, could also include, at least over a portion of its length, one or more notches 9 (Figure 4) oriented (s) parallel to the axis of the screw and cutting two or three extreme turns of said screw.
Claims (9)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9703158A FR2760628B1 (en) | 1997-03-11 | 1997-03-11 | SCREW WITH THREADED HEAD FOR OSTEOSYNTHESIS OF BONE FRAGMENTS |
| AU68381/98A AU6838198A (en) | 1997-03-11 | 1998-03-04 | Screw with threaded head for bone fragment osteosynthesis |
| PCT/FR1998/000417 WO1998040024A1 (en) | 1997-03-11 | 1998-03-04 | Screw with threaded head for bone fragment osteosynthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9703158A FR2760628B1 (en) | 1997-03-11 | 1997-03-11 | SCREW WITH THREADED HEAD FOR OSTEOSYNTHESIS OF BONE FRAGMENTS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2760628A1 true FR2760628A1 (en) | 1998-09-18 |
| FR2760628B1 FR2760628B1 (en) | 1999-11-26 |
Family
ID=9504829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9703158A Expired - Lifetime FR2760628B1 (en) | 1997-03-11 | 1997-03-11 | SCREW WITH THREADED HEAD FOR OSTEOSYNTHESIS OF BONE FRAGMENTS |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU6838198A (en) |
| FR (1) | FR2760628B1 (en) |
| WO (1) | WO1998040024A1 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2788960A1 (en) | 1999-02-02 | 2000-08-04 | Europ Foot Platform | Threaded pin for connecting bone fragments has two threaded sections of different diameters with smooth section between |
| WO2002056778A1 (en) * | 2001-01-17 | 2002-07-25 | Synthes (U.S.A.) | Bone screw |
| WO2004072496A1 (en) * | 2003-02-12 | 2004-08-26 | Synthes Ag Chur | Screw comprising an integrated screwdriver |
| WO2006037898A1 (en) * | 2004-10-07 | 2006-04-13 | Biotech International (Sarl) | Screw for device for coaptation of bone fragments or parts using compression effect |
| WO2009053540A1 (en) * | 2007-10-25 | 2009-04-30 | D.L.P. | Compression screw with threaded head for osteosynthesis |
| DE102009033138A1 (en) * | 2009-07-13 | 2011-02-03 | Z-Medical Gmbh & Co. Kg | Screw for compression of bones, has head thread section with cutting thread, where external dimension and/or core dimension of thread and/or external dimension and/or core dimension of thread section is reduced with respect to screw thread |
| WO2013118101A1 (en) * | 2012-02-08 | 2013-08-15 | Twocare S.R.L. | Dental or osseous implant |
| WO2015091916A1 (en) * | 2013-12-19 | 2015-06-25 | Rita Leibinger GmbH & Co. KG | Self-tapping, tension absorbing bone screw |
| US9339315B2 (en) | 2010-03-08 | 2016-05-17 | Stryker European Holdings I, Llc | Bone fixation system with curved profile threads |
| RU172665U1 (en) * | 2017-02-27 | 2017-07-18 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) | BIO-COMPATIBLE ROLL IMPLANT WITH BIOCOMPATIBLE COATING |
| WO2017123753A1 (en) * | 2016-01-12 | 2017-07-20 | Biomet Manufacturing, Llc | Headless bone compression screw |
| US10130406B2 (en) | 2016-01-12 | 2018-11-20 | Biomet Manufacturing, Llc | Headless bone compression screw |
| RU185339U1 (en) * | 2017-11-14 | 2018-11-30 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) | BIO-COMPATIBLE ROLL IMPLANT WITH BIOCOMPATIBLE COATING |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6030162A (en) * | 1998-12-18 | 2000-02-29 | Acumed, Inc. | Axial tension screw |
| US6984235B2 (en) | 1993-01-21 | 2006-01-10 | Acumed Llc | System for fusing joints |
| US6299615B1 (en) | 1993-01-21 | 2001-10-09 | Acumed, Inc. | System for fusing joints |
| US9161793B2 (en) | 1993-01-21 | 2015-10-20 | Acumed Llc | Axial tension screw |
| GB2355505B (en) * | 1998-12-18 | 2001-07-25 | Acumed Inc | Axial tension screw |
| GB2370619A (en) * | 2000-12-29 | 2002-07-03 | Olarewaju James Olagbo Oladipo | Bone screw |
| ES2267358B1 (en) * | 2004-09-08 | 2008-02-16 | Mariano Nuñez-Samper Pizarroso | COMPRESSION SCREW FOR OSTEOSYNTHESIS OF MINIFRAGMENTS. |
| US20100094358A1 (en) * | 2008-10-10 | 2010-04-15 | K2M, Inc. | Spinal staple |
| FR2996115B1 (en) | 2012-10-03 | 2015-05-29 | Biotech Ortho | SUPPORT OF ORTHOPEDIC SCREW. |
| FR3063005B1 (en) | 2017-02-22 | 2021-11-12 | Novastep | SCREW FOR OSTEOSYNTHESIS WITH ANGULAR INDEX TO THE SCREWDRIVER |
| 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 |
| US12076065B2 (en) | 2021-02-05 | 2024-09-03 | Acumed Llc | Bone screw with reduced flank portion |
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| US4175555A (en) | 1977-02-24 | 1979-11-27 | Interfix Limited | Bone screw |
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| WO1993000518A1 (en) * | 1991-06-25 | 1993-01-07 | Synthes Ag, Chur | Fastening element |
| FR2699065A1 (en) | 1992-12-10 | 1994-06-17 | Hardy Jean Marie | Self-compressing screw for treating bone end fractures - comprises hollow threaded rod with distal tip and bush with self-tapping surfaces |
| EP0695537A1 (en) | 1994-07-05 | 1996-02-07 | Amp Developpement | Threaded head screw device for setting two bone fragments |
-
1997
- 1997-03-11 FR FR9703158A patent/FR2760628B1/en not_active Expired - Lifetime
-
1998
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- 1998-03-04 AU AU68381/98A patent/AU6838198A/en not_active Abandoned
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| US4175555A (en) | 1977-02-24 | 1979-11-27 | Interfix Limited | Bone screw |
| SU1284533A1 (en) * | 1984-12-19 | 1987-01-23 | Харьковский Научно-Исследовательский Институт Ортопедии И Травматологии Им.Проф.М.И.Ситенко | Arrangement for fixing fragment of tubular bone |
| WO1993000518A1 (en) * | 1991-06-25 | 1993-01-07 | Synthes Ag, Chur | Fastening element |
| FR2699065A1 (en) | 1992-12-10 | 1994-06-17 | Hardy Jean Marie | Self-compressing screw for treating bone end fractures - comprises hollow threaded rod with distal tip and bush with self-tapping surfaces |
| EP0695537A1 (en) | 1994-07-05 | 1996-02-07 | Amp Developpement | Threaded head screw device for setting two bone fragments |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2788960A1 (en) | 1999-02-02 | 2000-08-04 | Europ Foot Platform | Threaded pin for connecting bone fragments has two threaded sections of different diameters with smooth section between |
| US6261292B1 (en) | 1999-02-02 | 2001-07-17 | European Foot Platform | Threaded pin |
| WO2002056778A1 (en) * | 2001-01-17 | 2002-07-25 | Synthes (U.S.A.) | Bone screw |
| AU2002235407B2 (en) * | 2001-01-17 | 2005-09-29 | Synthes Gmbh | Bone screw |
| WO2004072496A1 (en) * | 2003-02-12 | 2004-08-26 | Synthes Ag Chur | Screw comprising an integrated screwdriver |
| US7316532B2 (en) | 2003-02-12 | 2008-01-08 | Synthes (U.S.A.) | Screw with integrated screwdriver |
| WO2006037898A1 (en) * | 2004-10-07 | 2006-04-13 | Biotech International (Sarl) | Screw for device for coaptation of bone fragments or parts using compression effect |
| FR2876270A1 (en) * | 2004-10-07 | 2006-04-14 | Biotech Internat Sarl | SCREW FOR DEVICE FOR COAPTATION OF FRAGMENTS OR BONE PARTS USING A COMPRESSION EFFECT |
| GB2466599A (en) * | 2007-10-25 | 2010-06-30 | D L P Sarl | Compression screw with threaded head for osteosynthesis |
| FR2922749A1 (en) * | 2007-10-25 | 2009-05-01 | D L P Sarl | THREADED HEAD SCREW FOR OSTHEOSYNTHESIS |
| WO2009053540A1 (en) * | 2007-10-25 | 2009-04-30 | D.L.P. | Compression screw with threaded head for osteosynthesis |
| GB2466599B (en) * | 2007-10-25 | 2012-07-18 | D L P Sarl | Compression screw with compound threaded head for osteosynthesis |
| DE102009033138A1 (en) * | 2009-07-13 | 2011-02-03 | Z-Medical Gmbh & Co. Kg | Screw for compression of bones, has head thread section with cutting thread, where external dimension and/or core dimension of thread and/or external dimension and/or core dimension of thread section is reduced with respect to screw thread |
| US9339315B2 (en) | 2010-03-08 | 2016-05-17 | Stryker European Holdings I, Llc | Bone fixation system with curved profile threads |
| WO2013118101A1 (en) * | 2012-02-08 | 2013-08-15 | Twocare S.R.L. | Dental or osseous implant |
| WO2015091916A1 (en) * | 2013-12-19 | 2015-06-25 | Rita Leibinger GmbH & Co. KG | Self-tapping, tension absorbing bone screw |
| WO2017123753A1 (en) * | 2016-01-12 | 2017-07-20 | Biomet Manufacturing, Llc | Headless bone compression screw |
| US10130407B2 (en) | 2016-01-12 | 2018-11-20 | Biomet Manufacturing, Llc | Headless bone compression screw |
| US10130406B2 (en) | 2016-01-12 | 2018-11-20 | Biomet Manufacturing, Llc | Headless bone compression screw |
| RU172665U1 (en) * | 2017-02-27 | 2017-07-18 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) | BIO-COMPATIBLE ROLL IMPLANT WITH BIOCOMPATIBLE COATING |
| RU185339U1 (en) * | 2017-11-14 | 2018-11-30 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) | BIO-COMPATIBLE ROLL IMPLANT WITH BIOCOMPATIBLE COATING |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2760628B1 (en) | 1999-11-26 |
| AU6838198A (en) | 1998-09-29 |
| WO1998040024A1 (en) | 1998-09-17 |
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