WO2006115395A1 - Dispositif d’éclisse à charnière et procédé de réglage d’un tel dispositif d’éclisse - Google Patents

Dispositif d’éclisse à charnière et procédé de réglage d’un tel dispositif d’éclisse Download PDF

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Publication number
WO2006115395A1
WO2006115395A1 PCT/NL2005/000312 NL2005000312W WO2006115395A1 WO 2006115395 A1 WO2006115395 A1 WO 2006115395A1 NL 2005000312 W NL2005000312 W NL 2005000312W WO 2006115395 A1 WO2006115395 A1 WO 2006115395A1
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WO
WIPO (PCT)
Prior art keywords
hinge
splint
bone
bearing surface
movement
Prior art date
Application number
PCT/NL2005/000312
Other languages
English (en)
Inventor
Gerrit Johannes Termaten
Original Assignee
Flecares B.V.
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
Application filed by Flecares B.V. filed Critical Flecares B.V.
Priority to PCT/NL2005/000312 priority Critical patent/WO2006115395A1/fr
Publication of WO2006115395A1 publication Critical patent/WO2006115395A1/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
    • A61B17/64—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
    • A61B17/64—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
    • A61B17/6491—Devices extending alongside the bones to be positioned allowing small-scale motion of bone ends

Definitions

  • Hinged splint device and method for adjusting such a splint device are provided.
  • the present invention relates to a device for positioning two bones forming a hinge joint with respect to each other, comprising a first splint part that can be fixed in position relative to the first bone, as well as a second splint part that can be fixed in position relative to the second bone, and at least one hinge device built up of mating first and second hinge elements, which functions to enable the first and second splint parts to hinge relative to each other, said first hinge element forming part of the first splint part and said second hinge element forming part of the second splint part.
  • Such a device is known from GB 1496738, which describes a device by means of which the load on a knee joint can be removed and by means of which the upper leg and the lower leg can pivot with respect to each other.
  • a splint for the femur and a splint for the tibia are connected in a formlocked manner, which enables said splints to make a rotary hinge movement about a virtual pivot axis with respect to each other. This enables a patient whose knee joint has been put in splints to pivot the joint while it is in splints, allowing him to continue to use his muscles.
  • a drawback of the device that is known from GB 1 496738, however, is the fact that the hinge movement is a circular rotary movement, which is only a rough approximation of the natural hinge movement of a knee joint rather than a simulation thereof.
  • the fact is that the anatomy and biomechanics of a knee joint are such that the natural hinge movement of the knee joint is different from a circular rotary movement.
  • the natural hinge movement is a versatile movement comprising a combination of rolling, sliding and active and passive rotation.
  • the movement of the two bones with respect to each other is different with each person.
  • the splint device makes it possible to train the muscles of a splinted leg while the leg is in splints, to be true, but in a forced circular rotary movement that deviates from the natural movement.
  • the two bones must be spaced a forced large distance apart, because the spacing between the ends of the two bones varies in dependence on the orientation of the bones with respect to each other during of the forced hinge movement that deviates from the natural hinge movement. When the spacing between the bones is too small, there is a risk of the bones coming into contact with each other after all in the extreme positions of the joint.
  • first and the second hinge element comprise a first and a second bearing surface, respectively, which bearing surfaces are movable with respect to each other in use.
  • first and the second hinge element comprise a first and a second bearing surface, respectively, which bearing surfaces are movable with respect to each other in use.
  • the device comprises two hinge elements on either side of the hinge joint.
  • Such an embodiment readily enables a correct guidance of the bearing surfaces with respect to each other.
  • the bearing surfaces at least partially bear freely against each other in use. This enables easy fitting of the hinge elements. In addition, it enables a greater freedom of design.
  • the two hinge elements can be freely moved apart at least in one direction in use. This makes it possible to prevent a situation in which one of the two bearing surfaces is confined within the bearing surface that mates therewith. This is advantageous with regards to the manufacture of the hinge device. Furthermore it provides even more degrees of freedom for simulating the natural hinge movement. Since the two splint parts are fitted to one limb, they are held in position, and so are the hinge elements, therefore. In the case of a knee joint, for example, the pressure that the splint part in question exerts on the other splint part of the tibia via the upper leg will moreover ensure that the bearing surfaces will continue to be in contact with each other in use.
  • the device is provided with spring means that can be biased, which spring means function to oppose movement away from each other of the two hinge elements in said at least one direction.
  • the spring means furthermore function to prevent the bearing surfaces of the two hinge elements being urged towards each other, also when no load is being exerted on the splints, so that said bearing surfaces will remain in contact with each other in that case as well so as to realise a good simulation of the natural hinge movement. In this way it is ensured that the bearing surfaces will remain in contact with each other also in a situation in which the bones and the splints are not are being urged towards each other in a natural manner.
  • one of the two hinge elements is provided with a slot comprising the bearing surface and the other hinge element is provided with a pawl that can be received in said slot.
  • This embodiment ensures that the hinge elements cannot be freely moved apart, so that the orientation of the splint parts, and thus of the bones, can be readily defined.
  • the use of a slot configuration provides an additional degree of freedom in comparison with the prior art device, thus enabling an even more natural hinge movement.
  • the hinge elements are preferably arranged for effecting a natural hinge movement of the hinge joint deviating from a substantially circular movement upon movement over each other. This is possible in that the available degrees of freedom make it possible to realise a desired configuration of the two bearing surfaces of the hinge elements so as to optimise the hinge movement of the bones, which, in use of the splint device, is a derivative of the movement of the bearing surfaces of the hinge elements over each other.
  • At least one of the two hinge elements is provided with blocking means that block the relative movement of the two bearing surfaces so as to prevent the hinge joint from overstretching.
  • Said locking means preferably comprise a stop on one of the bearing surfaces. Said stop prevents the other bearing surface from moving any further than said stop.
  • the bearing surface of at least one of the hinge elements is built up of at least one roller element.
  • a roller element is excellently suited for realising a smooth movement with a minimum amount of friction over a bearing surface.
  • the bearing surface of one of the hinge elements comprises two roller elements which, in use, are supported on the bearing surface of the other hinge element.
  • the splint parts are furthermore provided with means for setting a minimum spacing between the first and the second bone.
  • the adjusting means make it possible to increase or decrease the spacing between the two splint parts and thus between the bones that are fixed in position thereto.
  • the adjusting means are suitable for setting an initial spacing between the bones as well as for adjusting said spacing during the period of use of the device. This is advantageous because bone and/or cartilage can regrow when the bones are spaced apart, which can lead to the spacing between the bones becoming smaller. Now it is possible to adapt the spacing between the bones to the amount of regrown bone and/or cartilage.
  • the splint parts are externally secured to the limbs. This enables a relatively quick fitting, with no surgery being required for fixing the splint parts in position with respect to the limbs in question.
  • a splint part is secured to a bone by means of pins connected to the splint part, which extend into the bone in question at an angle. This ensures an adequate fixation of the splint parts with respect to the bones in question.
  • each splint part preferably comprises angle adjusting means for adjusting the angle at which the pin extends from the splint part into the bone.
  • the angle adjusting means may comprise brake pads, for example, which are so designed that different brake pads provide different pin clamping angles.
  • orientation means forming part of the angle adjusting means be provided for causing two pins to extend at different angles, which pins, in use, extend from a splint part into the bone from different positions but from the same vertical level so as to prevent the pins from coming into contact with each other when placed in the bone.
  • a splint part preferably comprises at least two interconnected braces, which externally surround the bone at least in part. This makes it possible to give the splinted limb a certain degree of freedom, for example at the rear side in the case of a splinted leg, so that the splinted leg can rest on a bed or other supporting surface without being bothered by the braces.
  • the at least two braces of a splint part are interconnected by means of an elongated connecting element which is pivotally connected, about a virtual longitudinal axis and about a virtual second axis oriented at an angle with respect to said longitudinal axis, to at least one of the braces.
  • an elongated connecting element which is pivotally connected, about a virtual longitudinal axis and about a virtual second axis oriented at an angle with respect to said longitudinal axis, to at least one of the braces.
  • the device is provided with fixation means for fixing the two splint parts in position with respect to each other. This is important upon fitting the device, for example, when the splint device and the bones must be correctly positioned relative to each other. This can be done more easily when the two splint parts are rigidly connected by the fixation means.
  • one of the two mating hinge elements is capable of deformation prior to use of the device, and the other hinge element is provided with projection means arranged for projecting a contour line that is required upon use onto the deformable hinge element, wherein the deformable hinge element, when used according to the projection, is provided with a bearing surface configured in accordance with the desired contour line for movement there over of the other hinge element.
  • the deformable hinge element is oversized prior to use and if the hinge element that mates therewith is arranged for projecting the movement thereof with respect to the oversize hinge element, for example when the hinge joint is moved in a natural hinge movement, and wherein said one hinge element has been made to size in accordance with the projection so as to enable the two hinge elements to move over each other's bearing surface in use.
  • the deformable hinge element is detachable with a view to making it to size outside the splint device. This makes it possible to fix the two splint parts in position temporarily again, using the original fixation means, so as to make the hinge elements to size in a suitable workshop under ideal circumstances.
  • the present invention further relates to a method for adjusting a device for positioning two bones forming a hinge joint with respect to each other as already discussed above, said device being built up of a first splint part that can be fixed in position relative to the first bone, as well as a second splint part that can fixed in position relative to the second bone, and a hinge device built up of mating first and second hinge elements, which functions to enable pivoting movement of the first and second splint parts relative to each other, said first hinge element forming part of the first splint part and said second hinge element forming part of the second splint part, which method comprises the steps of fixing the first and second splint parts in position relative to the first and second bones, respectively, in a mutually fixed position, and releasing the first and second splint parts from said mutually fixed position.
  • the object of the present invention is to provide a method for adjusting a device for positioning two bones forming a hinge joint with respect to each other, which method results in such a device suitable for reproducing a natural hinge movement of the hinge joint.
  • This object is achieved with the present invention in that the method is characterized by the steps of
  • step D projecting a first bearing surface on the oversize portion by means of the projection element during the hinge movement of step C; E adapting the oversize hinge element so as to obtain the first bearing surface.
  • the method further comprises the steps of
  • the method further comprises the steps of H removing the projection element from the hinge device; and I placing a second hinge element provided with a second bearing surface into the hinge element, which second bearing surface will bear freely against the first bearing surface in use.
  • H removing the projection element from the hinge device
  • I placing a second hinge element provided with a second bearing surface into the hinge element, which second bearing surface will bear freely against the first bearing surface in use.
  • Figure 1 is a perspective view of a splint device according to the present invention in the fixed position thereof;
  • Figure 2 is a perspective view of a preferred embodiment of the invention with an oversize hinge element and a projection element;
  • Figure 3 is a perspective view of a preferred embodiment of the present invention in the position of use
  • Figure 4 is a sectional side view of a hinge element provided with two wheels
  • Figures 5a, 5b are a perspective view and a side view, respectively, of a clamp holder for a bone pin;
  • Figure 6 is a top plan view of a bone pin being clamped down in a clamp holder
  • Figure 7 is a side view of a clamp holder with a bone pin and a mounting bolt.
  • Figure 8 is a perspective view of an alternative embodiment of a hinge element according to the invention.
  • a perspective view is shown of a splint for a knee (not shown), comprising an upper splint part 2 with two braces 4, 5 and a lower splint part 3, likewise with two braces 6, 7.
  • the braces of each splint part 2, 3 are interconnected by means of connecting rods 8 and 9, respectively, which can rotate about their longitudinal axis and about pivot axes 8a and 9a, respectively.
  • Clamp holders 10 are furthermore mounted on the braces 4, 5, 6, 7, in which bone pins 11 are clamped for securing the splint parts to the bones of the femur and the tibia, respectively.
  • the upper and lower splint parts 2, 3 are fixed in position with respect to each other by means of fixing plates 12, which are connected to the braces 4 and 6 by means of mortise and tenon joints 13, 14.
  • Figure 2 also shows the upper and lower splint parts 2, 3 with braces 4, 5, 6, 7, connecting rods 8, 9, clamp holders 10 and bone pins 11.
  • the fixing plates of figure 1 have been replaced by holders 21 for a pencil 22 on the brace 4 and oversize plates 23 on the brace 6.
  • the holder 21 and the oversize plate 23 are freely movable with respect to each other. This situation will only occur, however, when the two splint parts 2, 3 are fixed in position relative to the upper leg and the lower leg, respectively, in which situation the braces are all positioned relative to each other.
  • Figure 3 also shows an upper and a lower splint part 2, 3 with braces 4, 5, 6, 7, connecting rods 8, 9, clamp holders 10 and bone pins 11.
  • the oversize plates have been worked to form hinge plates 33 comprising a bearing surface 31 and a stop 32.
  • a recess 34 is formed in the hinge means.
  • hinge elements 35 are mounted to the brace 4, which hinge elements will be explained in more detail yet with reference to figure 4.
  • the hinge elements 35 are mounted to the brace 4 by means of an adjustment bolt (not shown) and adjusting nuts 38, 39.
  • FIG. 4 is a larger-scale, longitudinal sectional view of the hinge element 35 of figure 3.
  • the hinge element 35 comprises a connecting bolt 40, a lock nut 41 and an upper housing 42.
  • the hinge element 35 further comprises a lower housing 43, in which a coil spring 44 is present, on which the connecting bolt 40 is supported via a supporting block 45.
  • pins 47 are mounted between two plates 46 (only one of which is shown in figure 4), on which wheels 37 are rotatably mounted.
  • Figures 5a and 5b are a perspective view and a side view, respectively, of a clamp holder for a bone pin (not shown).
  • a clamp holder 10 in fact consists of two ring-shaped elements 10a, 10b, in which slots 15a and 15b, respectively, extend.
  • the slots 15a, 15b extend obliquely with respect to the upper and the lower surface, respectively, of the rings 10a, 10b.
  • Bores 16a, 16b (not shown) furthermore extend through the centre of the rings.
  • Figure 6 shows a clamp holder 10, in which a bone pin 11 is held.
  • a hexagonal hole 17 is present in the bore 16 for orienting the bone pin 11 with respect to a brace (see figures 1, 2 and 3) by means of a bolt having a corresponding cross-section.
  • Figure 7 is a side view of a clamp holder 10, in which a bone pin 11 is held between the rings 10a and 10b. A second orientation of a bone pin is indicated at H 1 . A bolt 18 extends through the clamp holder 10.
  • FIG 8 shows an alternative embodiment of a hinge plate 53.
  • the hinge plate 53 is provided with a slot 50, into which a pawl (not shown) can be inserted for movement over the bearing surface 51.
  • a splint is fitted to the femur and the tibia of a patient having a worn knee joint, and that in the configuration that is shown in figure 1, i.e. in a situation in which the upper splint part 2 is fixed in position with respect to the lower splint part 3 by means of a fixing plate. In the present document, this situation is also referred to as the situation prior to the use of the device.
  • the braces 4, 5, 6, 7 are secured to the femur and the tibia in a fixed position with respect to each other.
  • the two braces 4, 5; 6, 7 of one splint part 2; 3 are connected together by means of a connecting rod 8; 9.
  • the connecting rods 8; 9 can still rotate about their longitudinal axis and about pivot axes 8a and 9a, respectively.
  • the splints 2, 3 are fixed to the femur and the tibia, respectively. In the illustrated embodiment, this takes place by securing the pins 11 to the respective bones.
  • the braces 8; 9 are then set in the desired position with respect to each other by rotating them about their respective longitudinal axes and about the pivot axes 8a, 9a. Then the connecting rods 8; 9 are locked against rotation. In this way it is ensured that the splint 1 is correctly oriented with respect to the patient's leg.
  • FIG 1 furthermore shows that two bone pins 11, which are mounted to the same brace, for example brace 4 or brace 6, extend at different angles into the bone in question (not shown). This prevents the pins 11 of the respective braces from touching each other at the location in the bone where they intersect. This is achieved by using clamp holders 10 configured with different angles, which will be discussed in more detail yet herein.
  • the fixing plates 12 can be removed and be exchanged for holders 21 for pencils 22, which are connected to the brace 4, and for oversize plates 23 that are connected to the brace 6. Then the pencils 22 are inserted into the holders 21 until they make contact with the associated oversize plate 23.
  • the knee (not shown) is made to make a hinge movement, during which movement also the splint parts 2, 3 hinge with respect to each other. Since the splint parts 2, 3 are not connected to each other, the knee can make a natural movement. Since the pencils 22 make contact with the oversize plates 23 during said movement, a derivative of said movement is drawn on the oversize plates 23.
  • the oversize plates 23 and the holders 21 are removed and the fixing plate 12 is placed back.
  • the oversize plates 23 will be worked in a specially equipped workshop at a later point in time, i.e. the plates are cut or milled along the projection line drawn by the pencils 22, after which a recess 34 is formed. This latter operation is only carried out with a view to reducing the weight of the splint.
  • the splint can be adapted so as to allow hinging movement thereof at a polyclinic. This is done by removing the fixing plate 12 and fitting the worked hinge plates 33 and the hinge element 35 to the respective braces 6 and 4 instead.
  • the hinge elements 35 are so adjusted by means of the adjusting nuts 38, 39 that the femur and the tibia are moved apart just far enough to create an interspace of a desired dimension there between.
  • the lower leg with the lower splint 3 can now be pivoted with respect to the upper leg with the upper splint 2.
  • the femur and the tibia would guide this hinge movement, but in this case the spacing that has been set as described above prevents this.
  • the wheels 37 will run over the bearing surfaces 31, as a result of which the two bones will pivot relative to each other as if they were interconnected via the hinge joint.
  • the spacing between the two bones allows bone and/or cartilage to regrow on the worn surfaces thereof. This may make it necessary to readjust the spacing after some time, which can be realised in a simple manner by turning the adjusting nuts 38, 39 on the connecting bolt 40 (figure 4), as a result of which the brace 4 is moved further away from or closer to the brace 6.
  • the spring 44 will be compressed until the upper end 49 of the housing 43 abuts against the stop 48.
  • the length of the hinge element 35 in use is thus defined, and the spacing between two bones of the hinge joint is changed as a result of the spacing between the brace 4 and the brace 6 being changed through adjustment of the adjusting nut 39.
  • the braces 4 and 6 might tend to move slightly apart.
  • the spring 44 will urge the wheels 47 of the hinge element 35 into contact with the bearing surface 31 of the hinge plate 33.
  • Figure 8 shows an alternative form of a hinge plate 53.
  • the relative hinge movement of two splint elements is defined in that a pawl (not shown) is inserted into a slot 50, in which it can move over the bearing surface 51.
  • the upper and lower splint parts are secured against being moved apart, however, in that the pawl is confined within the slot 50.
  • FIGs 5a and 5b show a clamp holder 10 consisting of rings 10a and 10b provided with slots 15a and 15b, respectively, between which a bone pin 11 can be placed (see figures 6 and 7). Since the slots 15a and 15b extend obliquely through the rings 10a and 10b, a bone pin 11, 11' will be oriented at an angle with respect to the brace 4, 5, 6, 7 in which it is used. In figure 7 this is clearly indicated by the orientation of the bone pin 11 and the bone pin H 1 (in dotted lines).
  • the clamping ring 10 when it is turned through 180° in comparison with the position in which the bone pin 11 is held in the position that is illustrated in full lines, will orient a bone pin H 1 at a different angle with respect to the brace in question. This achieves that two intersecting bone pins (see the bone pins that are connected to the brace 4 in figures 1, 2 and 3, for example) will not cross at the same vertical level at the location at which they are secured to a bone.
  • the embodiments described herein are merely examples that do not limit the scope of the invention, which is defined by the appended claims.
  • the embodiments of the device as described herein relate to a splint that is secured to bones, but it is also possible to use a splint that is externally connected to the leg.
  • the invention has been described in relation to the use thereof with a knee joint, but it is also possible to use the device and the method with other hinge joints.

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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)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

L’invention concerne un dispositif de positionnement de deux os constituant un joint à charnière l’un par rapport à l’autre, comprenant une première pièce d’éclisse (2) que l’on peut fixer dans une position relative au premier os, de même qu’une seconde pièce d’éclisse (3) que l’on peut fixer dans une position relative au second os, et au moins un dispositif à charnière (35) combinant le premier élément à charnière (37) et le second (33) élément à charnière, permettant d’établir une charnière entre la première pièce d’éclisse et la seconde pièce d’éclisse pour les relier l’une à l’autre, tandis que le premier élément à charnière et le second élément à charnière comprennent une première surface d’appui et une second (31) surface d’appui, respectivement, lesquelles surfaces d’appui sont mobiles l’une par l’autre. L’invention concerne en outre un procédé permettant de régler un tel dispositif.
PCT/NL2005/000312 2005-04-26 2005-04-26 Dispositif d’éclisse à charnière et procédé de réglage d’un tel dispositif d’éclisse WO2006115395A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/NL2005/000312 WO2006115395A1 (fr) 2005-04-26 2005-04-26 Dispositif d’éclisse à charnière et procédé de réglage d’un tel dispositif d’éclisse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/NL2005/000312 WO2006115395A1 (fr) 2005-04-26 2005-04-26 Dispositif d’éclisse à charnière et procédé de réglage d’un tel dispositif d’éclisse

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115998398A (zh) * 2023-02-14 2023-04-25 北京爱康宜诚医疗器材有限公司 骨固定装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3779654A (en) * 1971-08-06 1973-12-18 R Horne Artificial joint
US4185623A (en) * 1978-07-18 1980-01-29 Oganesian Oganes V Apparatus for restoration of hip joint mobility
US4637382A (en) * 1982-04-27 1987-01-20 Brigham & Women's Hospital Motion-guiding load-bearing external linkage for the knee
US5122140A (en) * 1989-08-23 1992-06-16 Jaquet Orthopedie, S.A. Dynamic external fixation device
DE4313767A1 (de) * 1992-04-30 1993-11-04 Lima Spa Fixiervorrichtung, mit deren hilfe die teile eines gebrochenen handgelenkes festgestellt werden koennen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3779654A (en) * 1971-08-06 1973-12-18 R Horne Artificial joint
US4185623A (en) * 1978-07-18 1980-01-29 Oganesian Oganes V Apparatus for restoration of hip joint mobility
US4637382A (en) * 1982-04-27 1987-01-20 Brigham & Women's Hospital Motion-guiding load-bearing external linkage for the knee
US5122140A (en) * 1989-08-23 1992-06-16 Jaquet Orthopedie, S.A. Dynamic external fixation device
DE4313767A1 (de) * 1992-04-30 1993-11-04 Lima Spa Fixiervorrichtung, mit deren hilfe die teile eines gebrochenen handgelenkes festgestellt werden koennen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115998398A (zh) * 2023-02-14 2023-04-25 北京爱康宜诚医疗器材有限公司 骨固定装置

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