WO2004026156A1 - Fixateur axial dynamique stable ii (holyfix) - Google Patents

Fixateur axial dynamique stable ii (holyfix) Download PDF

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Publication number
WO2004026156A1
WO2004026156A1 PCT/TR2003/000075 TR0300075W WO2004026156A1 WO 2004026156 A1 WO2004026156 A1 WO 2004026156A1 TR 0300075 W TR0300075 W TR 0300075W WO 2004026156 A1 WO2004026156 A1 WO 2004026156A1
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WO
WIPO (PCT)
Prior art keywords
clamp
fixator
joint
cover
sphere
Prior art date
Application number
PCT/TR2003/000075
Other languages
English (en)
Inventor
Haci Kutlu
Original Assignee
Haci Kutlu
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
Priority claimed from TR200202203A external-priority patent/TR200202203A2/xx
Priority claimed from TR2003/01347A external-priority patent/TR200301347A2/xx
Application filed by Haci Kutlu filed Critical Haci Kutlu
Priority to AU2003265217A priority Critical patent/AU2003265217A1/en
Publication of WO2004026156A1 publication Critical patent/WO2004026156A1/fr

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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
    • A61B17/6458—Devices extending alongside the bones to be positioned with pin-clamps fixed at ends of 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
    • A61B17/6491—Devices extending alongside the bones to be positioned allowing small-scale motion of bone ends

Definitions

  • External Fixators are devices used for fixing the fragments of fractures by means of pins and/or wires to ensure stability until the healing is completed.
  • This invention is a highly modular, multifunctional, monoaxial, hybrid, circular, bar and combination type complete external fixator system used for the fixation, correction, and lengthening of all bones in orthopedics and traumatology.
  • clamps gripping both end of the fractured bones separately, two joints mounted on these clamps that ensure the correction and adaptation of the fracture, a body that determines the length and the degree of extension of the device, and distractor units for shortening or lengthening.
  • Fixators used in this area are divided into three main groups: 1 -Monoaxial 2-Biaxial 3-Circular Monoaxial ball-socket type fixators have two separate clamps that hold the fragments on both ends, two joints for correction of the fractures, and a distraction- compression unit for shortening/ extension.
  • circular type fixators there is a ring that fixes the fracture, a K-thread and a wire brace system, and couplings that join those to each other.
  • the clamp systems of the currently used fixators consist of two bare covers fixed to the body or joint, and that hold the pins entering the bone. This design does not allow modularity, neither it allows the physician to design a desired combination; thus, production of many distinct types and models of fixators are indispensable. Furthermore, these clamps don't comply with the circulatory system.
  • Clamps of the Orthofix type fixators are not capable of translation and arranging of angles from the clamps.
  • Clamps of neither Orthofix type, nor Stable Dynamic Axial Fixators (S-DAF) comply with llizarov.
  • the distraction/compression unit of Orthofix consists of two separate systems. Also it is not capable of controlled dynamization and elastic dynamization. Because of application difficulties and excess of material used the risks of infection and loosening of the pins increase; in addition, it can lengthen the operation time since there is an inability to see the fragments of the fracture because of radiological superposition during application and follow-up, and also it may not allow obtaining x- rays with the required position. Moreover, system gets even- heavier by adding of another unit for elastic fixation, and this reduces the transparency for x-rays. Adaptation difficulties of the patients to these systems may require longer period of hospitalization; so, the cost of the treatment increases and abstinence from work increase.
  • S-DAF Stable Dynamic Axial Fixator type
  • Orthofix does not have cancelable joints, and therefore, the risk of joint insufficiency aiways exists.
  • Usage of the joint of S-DAF has the risk of insufficiency also.
  • the rotation stability of S-DAF system is always predisposed to insufficiency.
  • the sphere skid of S-DAF can cause sliding in fixed position and cause loss of reposition. Because Orthofix makes the entire correction through ball and socket, the final status of the fixator is bio-mechanically vulnerable to insufficiency.
  • butterfly fragment fixation is not possible on the bodies of these devices through the application of off-set pins.
  • S-DAF has not sliding unit. It is not capable of bone transfer. It has limited angulation ability. Also it can not be able to create hybrid and combine type fixator. S-DAF also has not specific circular and pin system.
  • Orthofix has not bar type modularity, and it has not elastic bone transport system. Also it has not translation ability of the fragments for alignment and angular fixation by clamps. Furthermore, there is no application guides for all these types of fixators, and they have to be applied manually. Similarly they have not anti-infective pin system.
  • An ideal external fixator should ensure the proper and stable fixation of the bones till the knitting is completed, and angling, elastic fixation and controlled dynamization should be possible whenever needed.
  • the device should be as functional as possible, the movement range and modularity should be wide, the system should be stable, there should be no re- positioning loss during the application and later on, the device should be light and hygienic, transparent for x-rays, and acceptable and easy-to-use by the patient.
  • the object of the invention is to obtain a fixator that It must ensure a stable fixation while practicing fracture, deformity, and lengthening treatments until the original bone was knitted, and it must be an easily manufactured, hygienic fixator that allows correction, elastic fixation and controlled dynamization whenever needed.
  • This invention is an external fixator system of the dynamic axial, bar and circular fixator type and combinations of these types of fixators with its cancelable bali-socket type joint.
  • Figure 1- Part II Cross-section of the normo-clamp system
  • Figure 1- Part III Mono-clamp system
  • Figure 1- Part IV Body
  • Figure 1- Part V Cross-section of the distraction-compression system
  • Figure 2 Cross-section of the hybrid clamp body
  • Figure 7 Angled connector Figure 8 Clamp cover with bearing Figure 9 x-ray image of the fixator Figure 10 Applicatior ⁇ of the fixator Figure 11 a) Longitudinal cross-sectional view of sliding-clamp b) Cross-sectional view in width of sliding-clamp c) Cross-sectional view in width of single sliding-clamp Figure 12 : View of the threaded rod (Holybar) from the top Figure 13 a) Cross-sectional view in width of the body of double joints with two eccentrics. b)Longitudina! cross-sectional view of the body of double joints with two eccentrics. c)Top view of the body of double joints with two eccentrics. d)Top view of the body of double joints with single eccentric.
  • Figure 14 a) Cross-sectional view in width of double joints with screw b) Longitudinal cross-sectional view of double joints with screw
  • Figure 15 Cross-sectional view in width of clamp with ball-socket joint
  • Figure 18 Cross-sectional view of modular sphere
  • the invention has been designed in six separate clamp systems which can be combined as required.
  • Normo-clamp ( Figure 1- Part II): It is a modular part.
  • the body (3) doesn't have a skid channel. It is tightened directly by fixing. Angling and/or translation can be possible by using the coupling covers (2).
  • the fixing set screw (8) at the body is tightened after inserting the one end of the lengthening bolt (12) into the shell on the body of the clamp.
  • the part of the elongation bolt that enters through the body of the clamp has an inwards inclination and the collar of the elongation nut fit into the clamp firmly when the set screw (8) is tightened.
  • Outer covers have double slots on them for easy application.
  • Mono-clamp ( Figure 1- Part III): The body of the mono-clamp (4) has skids. The sphere with skid ensures the clamp to fit in to the body by moving through this canal. As a result, the load on the clamp is transferred directly to the body, and the joint is thus released off the load. Similariy, angling and translation by the covers of the normo-clamp and coupling covers are also possible.
  • Hybrid Clamp ( Figures 2 and 3): It consists of a clamp body (5) and ring (9), clips (10) and wire system (Figure 3). There is a skid part as it's on the body (5). In addition, there is a bolt (11) canal to fix the ring. Rings (9) are connected to the body directly or by connectors. Various combinations of the top and intermediate covers are possible. Unlike other clamps, locating pins with different angles, combinations, and numbers are possible. In addition, translations of different degrees are also possible. It is also possible to create hip and pelvis fixators, mobile joint fixators by using angled connectors ( Figure 7) (32).
  • iv. Off-set clamp ( Figure 5): This is an apparatus consisting of parts 25, 26, and 27, and capable of using one or two pins moving on the body. Using of more than one off-set is possible when necessary.
  • Body of sliding-clamp (36 and 41): Sliding-clamp is one of the complementary parts of the system and it can be used along with or combined with other parts. Sliding-clamp is used by sliding over a treated rod (Holybar) (42).
  • Holybar (42) is also a part of the system and it's compliant and can be combined with other parts.
  • Sliding-clamp body (36 and 41) has a tunnel (38) which gives way for sliding over the threaded rod (Holybar) (42). There are two set screws ( set screw canals (39) can be seen) in the back part of the body (36, 41) fixing the body to Holybar (42) and maintaining stability of the rotation.
  • Body has standard number of pin holding surfaces and slots in the front similar to the other clamps.
  • Clamp cover and bolt are the standard cover and bolt of the system.
  • Clamp body (36 and 41) is obtained by fixing the standard lengthening nut of the system to both sides over Holybar (42). At that point when elastic fixation bolt (lengthening nut with cover) (62) and elastic fixation spring
  • clamp gains the ability for elastic fixation.
  • Single sliding-clamp is also possible.
  • Single sliding-clamp (41) is symmetrical half of the normal skid clamp (36). It consists of a half clamp cover (74), body of single sliding clamp (41) and two lengthening bolts. It can hold up one or two pins. (Figure 11-c). It also has normal, intermediate and mini sizes (lower extremity, upper extremity and finger) that are the right sizes for the various bone dimensions.
  • Clamp with ball-socket joint (53) In clamp with ball-socket the tips of the top cover (54) of the short joint and long bottom cover (55) of the joint are chiseled so as to envelope the joint sphere and thus create a sphere slot (52). When the joint bolt (24) is tightened the sphere becomes stabilized.
  • the long cover (20) of the joint is complemented by clamp bottom cover (58), clamp intermediate cover (57) and clamp top cover (56) each having two pin canals (61) that can hold two pins at the bottom, intermediate and top part of the other tip respectively.
  • Clamp covers (56, 57, 58) can be fixed by tightening the clamp bolt (60).
  • Other apparatus and their characteristics are as follows:
  • Body There are three different kinds of bodies: long, medium, and short types. And also there pediatric and upper extremity sizes. These determine the size of the device. It has a telescopic structure. Elongation bolts function within the body. The segment (13) ensures the rotation stability .
  • Joints .
  • (Single, standard) Joint Figure 1- Part VII): This is a joint of ball- socket type. It is either modular or monoblock with the body. It consists of joint tightening wedge (22), tightening nut (23) and joint sphere (24). The sphere and its skid have longitudinal and transversal scrapes on them and the skid has same slot as in lengthening bolt. The axial and rotational stabilities are thus ensured.
  • Double ball-socket type of joint There are two different types of joint design.
  • Body of double joints with a single eccentric (44) This is an apparatus compliant with the standard eccentric and sphere tightening nut and wedge of the system; it has a camshaft slot (46) in the middle and it also has a threaded zone (47) in both tips where tightening nut is fixed and which is used for tightening the sphere (70). When camshaft is rotated it stabilizes the system by pushing the wedge towards the spheres (FIGURE 13-a, b, d). It has different sizes.
  • Body of the double-joints with two eccentrics (45) This is an apparatus compliant with standard eccentric and sphere tightening nut and wedge of the system; it has two camshaft slots (46) in the middle and two threaded zones
  • Double joints with screw (48) It's an apparatus made up of two plates (lower cover (49) and upper cover (50)) that are reciprocally coupled to each other from their middle by a bolt (bolt canal (51) is seen); the tips of the apparatus has a sphere slot (52) in order to encircle (envelope) the joint sphere. When the bolt is tightened both of the spheres are stabilized. (FIGURE 14-a,b).
  • Conical joint (63) It consists of two conical parts (64, 65) intertwined to each other.
  • conical joint bolt (68) passing through the middle of these conical parts and connecting female conical part (66) with the male conical part (67) is rotated to one side the joint is locked. If the bolt (68) is rotated to the reverse side, since the joint is attached to the upper apparatus by a piston-ring (69) the joint is unlocked.
  • the tips of the joints are compliant with the clamps and connectors and other apparatus.
  • Distraction-Compression unit ( Figure 1- Part V): This system consists of a dynamization bolt (15), an elastic fixation spring (16), a stopping spring (-ball) (17), an lengthening nut (18), lengthening bolt (12) and a fixing set screw for the lengthening nut (19). Normally, the lengthening nut is in a fixed position by the fixing set screw on the dynamization bolt. During the lengthening, the system is elongated by 1 mm with a clockwise rotation of one whole tour. This elongation amount is divided into four equal portions. Shortening is done by the same movement in the reverse direction.
  • Lengthening nut with cover (62): By extending one side of the standard lengthening nut over the body like a cover the stability can be increased and calibration and ease of use during elastic fixation and dynamization is ensured. (FIGURE 16).
  • the connector which is used for connecting the clamps together, consists of endings adapted to the clamps, has saw-nails that ensures movement, and becomes fixed when locked with screws, (32), forms in particular the constructions of hip fixator, pelvic, and peri-articular fixators. Washers are placed between nails to obtain a mobile joint.
  • Clamp cover with skid ( Figure 8): This can function as a guide in both pin applications by ensuring movement in both directions. There is no need for displacement by dismounting. Similarly, easy and safe applications have been provided for by discarding the reverse positioning technique.
  • this apparatus resembles Orthofix and stable dynamic axial fixator (S-DAF) patents, the characteristics mentioned above cannot be obtained with the apparatus of those patents, because Orthofix has only one plain cover, and S-DAF has one single slot.
  • Threaded rod (Holybar) (42): This is a system on which the sliding clamp (36 and 41) slides over; it can be combined with other clamps and joints within the system and several combinations can be developed by its use within the system. It's a threaded apparatus and it has two surfaces opposite to each other smoothened by machining its surface threads ( Figure 12, AA' ). Its both tips are compliant with other clamps, spheres and/or joints of the system.
  • !t may be of different size, diameter and shape varying by the characteristics of the bone which it's used for and by its function within the combination. Bar tips
  • Modular sphere (70) This is a spherical apparatus that is applied to the tips of the rods (rod canal is seen(71)) or bars available in the system and is fixed by a set screw (set screw canal (72) is seen). (FIGURE 18).
  • the ring and clips system It is a system that has not been used in similar devices up till now, and it has quite different operating and usage forms.
  • This system ( Figure 3), which consists of a ring (9), clips (10), and wires, fixes the bones using a ring-wire system.
  • the body of the clips can be of two different types, namely as holes ( Figure 3) (10-k) or slots ( Figure 3) (10-a), and their ends can be of types with double or quadruple slots or nails.
  • the wire is passed through the clips, and the clips tighten and stretch the wire when it is passed through the hole of the ring. At the end, the nails are affixed onto the ring to maintain the wire stretched.
  • This consists of an apparatus that corresponds to the pin levels of the clamp and wings that the rods fixing the lower and upper ends of the bone pass through (29, 30, 31).
  • the guide is fitted in so as to be parallel to the mid- axis of the bone.
  • the rods of the guide (30) are located tangenting the lower and upper edges of the fragment of the fracture, and rods are fitted to the lower and upper edges of the bone.
  • the second guide is fitted in similarly. All the pinsthat are to be inserted are thus located meeting the mid-axis of the bone.
  • the guide rod with 6 mm width at one end is sent through till it touches the midline of the bone.
  • the rod at the other end is set to an equal length, and tightened.
  • the objective of this invention is to prevent such micro-movements by holding of the soft tissue by the outer surface of the pins ( by integration of the soft tissue into the roughened surface of the pin), and thus to prevent infection indirectly. Therefore, roughening of the surfaces of these pin parts that will remain within the body is necessary. This can be done by more than one method:
  • Modular sphere firmly holds on to the tip of the bar and facilitates manufacturing, enriches the application and simplifies the set (system) by reducing the need for combinations of sphere with rod due to its modularity. It allows combination changes during surgery or treatment.
  • Angulation of the fragments can be done by polyfix clamps. 10. Translation of the fragments can be done by the clamps.
  • Distraction-compression system is easy to use and adapt both for the surgeon and the patient.
  • the system has high range of angling
  • the system has a unique clips-ring sytem for easy ring fixation.
  • the system has its guide system.
  • System has its specific screw (Holyscrew) which decreases pin site infection.
  • the system is a complate system for complate solutions for total proplems.
  • POM-M polifix without joint monofix medium fixator.
  • MJM-M Monofix with joint monofix medium fixator.
  • HolyFix external fixator System is currently the closest to an ideal fixator.
  • the clinical application method for stable dynamic axial fixator which is the subject matter of this invention, is also the basis of the design. By minimising the use of scopy devices and the need for joints the method becomes a safer and more practical application.
  • This invention is used in the long bones of extremities.
  • An appropriate fixator is selected according to the type, region, and the length of the bone. If the type with joint is selected, the joint must be in the straight and closed position at first to set the distraction-compression distance. Traction is applied to the long bone preferably.
  • the pin of the fixator at the most lateral position is located with an angle of 90 degrees to the bone, and sagittal reposition of the bone is thus ensured.
  • the second pin is inserted into the closest hole on the mid-line of the bone on the same plane and as parallel to the first pin (the modification performed on the clamp cover has provided an ease of application). If the bone is not on the mid-line when inserting that pin, the fractured bone can be pushed downwards or upwards in order to put the bone to the midline. When the same procedure is applied to the counter side the ends of the fracture will be re-positioned on the lateral plane, too.
  • the third set of pins are inserted on the same plane as parallel.
  • the guide is located as to meet the mid-line.
  • the pins of the guide (30) are inserted as tangent to the upper and lower edges of the fragment of the fracture, and rotated so as to fit the pins on upper and lower edges of the bone.
  • the second guide is located in the same way. All the pins are thus located to meet the mid-line of the bone.
  • the pin at one end is sent till it touches the bone.
  • the pin at the other end is adjusted to the same distance and tigthened.
  • the hole for the middle pin is drilled through the middle pin hole spot when the pins at both ends are in touch with the bone, and the pin is nailed. This way, the middle pin will be located as perpendicular to the bone and on the mid-line. This pin is locked to the guide, and the remaining pins are fitted in. The same procedure is applied to the other fragment. When the fixator is iocated in this position, the bone will be anatomically repositioned.
  • the final position of the fracture is controllod under scopy or x-ray after placing both clamps in the same way. If there are any angling, the joint is opened and corrected. The distance for distraction and compression is adjusted, and fixator is locked. The operation is completed by dressing the pin dipping places with sterile gauze.

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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

Holyfix est un système extrêmement modulaire. La combinaisons d'éléments permet d'élaborer différents types de fixateurs à axe unique, hybrides, circulaires, à barre, ou des combinaisons de ces fixateurs en fonction de la pathologie avec différentes fonctions. Le système décrit dans cette invention comprend une unité de distraction-compression, d'un corps, des raccords, un raccord coudé, différents types d'attaches pouvant être sélectionnées en fonction des besoins, différents types d'articulations modulaires coniques et à rotule sphérique, une holybar, un système d'anneaux et d'agrafes (holyring) permettant la fixation d'anneau, des broches dotées de surfaces rugueuses (holypin) permettant l'intégration de tissus mous pour prévenir l'infection, et un système de guidage (holyguide) permettant l'insertion d'une broche sans rayons x.
PCT/TR2003/000075 2002-09-18 2003-09-15 Fixateur axial dynamique stable ii (holyfix) WO2004026156A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003265217A AU2003265217A1 (en) 2002-09-18 2003-09-15 Stable dynamic axial fixator-ii (holyfix)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
TR200202203A TR200202203A2 (tr) 2002-09-18 2002-09-18 Stabil dinamik aksiyel fiksatör-II (holyfix)
TR2002/02203 2002-09-18
TR2003/1347 2003-08-19
TR2003/01347A TR200301347A2 (tr) 2003-08-19 2003-08-19 Sabit dinamik aksiyel fiksatör II (HOLYFIX)

Publications (1)

Publication Number Publication Date
WO2004026156A1 true WO2004026156A1 (fr) 2004-04-01

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WO (1) WO2004026156A1 (fr)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4312336A (en) * 1978-11-10 1982-01-26 Orthofix S.R.1. External axial fixation unit
US4488542A (en) * 1981-11-27 1984-12-18 Per Helland External setting and correction device for the treatment of bone fractures
FR2557933A1 (fr) * 1984-01-10 1985-07-12 Srebot Dispositif d'articulation pour l'assemblage de plusieurs elements, notamment pour fixateur externe destine a l'osteosynthese
US5026372A (en) * 1987-11-05 1991-06-25 Robert Sturtzkopf Fixation device for the external adjusting of bone fragments
DE4139700A1 (de) * 1991-10-02 1993-04-08 Robert Dr Sturtzkopf Vorrichtung zum externen festlegen von knockenfragmenten
WO1994002078A1 (fr) * 1992-07-28 1994-02-03 Orthofix Srl Dispositif de fixation axial externe pour osteosynthese
EP0628289A1 (fr) * 1993-06-01 1994-12-14 Jean-Marie Hardy Fixateur externe modulaire évolutif pour immobilisation d'un foyer de fracture
WO1999025265A1 (fr) * 1997-11-17 1999-05-27 Haci Kutlu Fixateur axial dynamique stable
EP1021992A2 (fr) * 1999-01-21 2000-07-26 Medicalplastic S.r.L. Fixateur externe pour l'orthopédie et la traumatologie
WO2001028441A1 (fr) * 1999-10-21 2001-04-26 Electro-Biology, Inc. Systeme de fixation externe
US6428540B1 (en) * 1996-11-13 2002-08-06 Synthes (U.S.A.) Device for repositioning fractured bone fragments

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4312336A (en) * 1978-11-10 1982-01-26 Orthofix S.R.1. External axial fixation unit
US4488542A (en) * 1981-11-27 1984-12-18 Per Helland External setting and correction device for the treatment of bone fractures
FR2557933A1 (fr) * 1984-01-10 1985-07-12 Srebot Dispositif d'articulation pour l'assemblage de plusieurs elements, notamment pour fixateur externe destine a l'osteosynthese
US5026372A (en) * 1987-11-05 1991-06-25 Robert Sturtzkopf Fixation device for the external adjusting of bone fragments
DE4139700A1 (de) * 1991-10-02 1993-04-08 Robert Dr Sturtzkopf Vorrichtung zum externen festlegen von knockenfragmenten
WO1994002078A1 (fr) * 1992-07-28 1994-02-03 Orthofix Srl Dispositif de fixation axial externe pour osteosynthese
EP0628289A1 (fr) * 1993-06-01 1994-12-14 Jean-Marie Hardy Fixateur externe modulaire évolutif pour immobilisation d'un foyer de fracture
US6428540B1 (en) * 1996-11-13 2002-08-06 Synthes (U.S.A.) Device for repositioning fractured bone fragments
WO1999025265A1 (fr) * 1997-11-17 1999-05-27 Haci Kutlu Fixateur axial dynamique stable
EP1021992A2 (fr) * 1999-01-21 2000-07-26 Medicalplastic S.r.L. Fixateur externe pour l'orthopédie et la traumatologie
WO2001028441A1 (fr) * 1999-10-21 2001-04-26 Electro-Biology, Inc. Systeme de fixation externe

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