CN109938814B - Reduction holding device for refractory intertrochanter fracture - Google Patents
Reduction holding device for refractory intertrochanter fracture Download PDFInfo
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- CN109938814B CN109938814B CN201910145998.7A CN201910145998A CN109938814B CN 109938814 B CN109938814 B CN 109938814B CN 201910145998 A CN201910145998 A CN 201910145998A CN 109938814 B CN109938814 B CN 109938814B
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- 230000009467 reduction Effects 0.000 title claims description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 47
- 208000010392 Bone Fractures Diseases 0.000 claims description 25
- 206010017076 Fracture Diseases 0.000 claims description 25
- 206010020100 Hip fracture Diseases 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000017531 blood circulation Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 210000003484 anatomy Anatomy 0.000 description 3
- 230000009194 climbing Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 208000006735 Periostitis Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 210000003460 periosteum Anatomy 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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Abstract
The invention discloses a device for reducing and holding refractory intertrochanter fracture, and relates to the field of medical appliances. The holding device comprises holding pliers, wherein the holding pliers are provided with limiting plates for adjusting the opening and closing degree; the jacking mechanism comprises a fixed rod perpendicular to the holding forceps, a bowl-shaped connecting frame extending over the connecting holes is arranged on the fixed rod, and a threaded connecting rod can be penetrated through any connecting hole on the connecting frame; the jacking mechanism comprises a connecting rod mechanism capable of changing the height of the jacking mechanism by rotating the adjusting rod. The holding device can be mechanically fixed at the far end, the incision required by the fracture end is small, the blood circulation is not damaged, and the position of the top pressing rod can be randomly adjusted to be matched with the lifting mechanism with the adjustable supporting height below the limb, so that the device is suitable for the tilted bone stubble to achieve the optimal pressing state.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a difficult-to-restore intertrochanteric fracture reduction holding device.
Background
In the intertrochanteric fracture operation, traction is needed by a traction bed, and because of the continuous traction effect, the strength of muscles can lead the fracture end to generate the lifting of bone stubbles, and in the operation process, the lifted bone stubbles are required to be pressed and reset to enable the operation to be continued.
In a conventional operation of covering a bone stubble, an incision is made at a fracture end, and a turned-up bone stubble is directly pressed down by using an object such as a hand-held ejector rod, or the turned-up part is clamped by using a holding clamp, and simultaneously, a limb of a patient is manually supported from below by using a support, so that the operation is performed under the combined action.
However, for the difficult-to-restore intertrochanter fracture operation, the operation time is long, and in the long-time operation process, when the bone stubbles are pressed by using articles such as a handheld top rod and the like and the fractured limb is supported by using a periosteum opener, stable stress is difficult to maintain, so that the bone stubbles are loosened and even tilted again; meanwhile, when the holding forceps are used for fixing bone stubbles, a larger incision is needed to be made at the fracture end, the larger incision has more serious influence on blood circulation, the holding forceps have larger acting force, the bone stubbles are weaker and sharper, and the bone stubbles are easily broken due to the overlarge acting force; and because of the different fracture parts, when supporting the limbs of a patient, medical staff is required to manually carry out supporting adjustment, and the stable supporting state is difficult to maintain.
Disclosure of Invention
The invention aims to solve the technical problems of providing the refractory intertrochanteric fracture reduction holding device which can be mechanically fixed at the far end, has small incision required by the fracture end, does not damage blood circulation, can randomly adjust the position of the threaded ejector rod so as to adapt to the tilted bone stubble to achieve the optimal jacking state, has a stable jacking mechanism and can meet the requirements of various heights for supporting limbs.
In order to solve the technical problems, the invention adopts the following technical scheme:
the refractory intertrochanter fracture reduction holding device is characterized by comprising:
the holding forceps are used for being clamped on limbs of a patient and comprise a left forceps handle and a right forceps handle which are mutually hinged through a pin shaft, a limiting plate is connected between the left forceps handle and the right forceps handle, an arc-shaped hole is formed in the limiting plate along the opening and closing track of the holding forceps, the left forceps handle is fixedly connected with one end of the limiting plate, a limiting bolt capable of sliding in the arc-shaped hole is fixed on the right forceps handle, and a nut matched with the limiting bolt in a threaded mode is sleeved on the limiting bolt.
The jacking mechanism comprises a fixing rod coaxially fixed on a pin shaft, a connecting frame is fixed at one end, far away from the holding forceps, of the fixing rod, the connecting frame is of an inverted bowl-shaped structure, a plurality of connecting holes with connecting threads are formed in the arc surface of the connecting frame, a threaded ejector rod is arranged below the connecting frame, the threaded ejector rod can penetrate into any connecting hole, and the upper end of the threaded ejector rod is locked through a screw-in nut.
The jacking mechanism comprises a connecting rod mechanism, a jacking plate fixed above the connecting rod mechanism and a fixed base fixed below the connecting rod mechanism, wherein the connecting rod mechanism comprises two first connecting rods which are vertically arranged at left and right intervals, an adjusting rod transversely penetrates through the two first connecting rods, the adjusting rod is in threaded connection with the first connecting rods, one end of the adjusting rod extends outwards, a second connecting rod is hinged above each first connecting rod, the two second connecting rods are in a splayed structure, a third connecting rod is hinged below each first connecting rod, and the two third connecting rods are in an inverted splayed structure.
The further technical scheme is that the number of the connecting rod mechanisms is two, and a space capable of accommodating limbs of a patient is arranged between the two connecting rod mechanisms.
The further technical scheme is that the jacking plate is an arc plate which is fit with the appearance of the limb.
The further technical scheme is that the non-extending end of the adjusting rod is fixedly provided with a rotating block, the rotating block is perpendicular to the adjusting rod and provided with a rotating hole, and a rotating handle is arranged in the rotating hole in a penetrating mode.
The further technical scheme is that the connecting hole is a universal locking hole.
The further technical scheme is that the lower ends of the left forceps handle and the right forceps handle are symmetrically fixed with a clamping plate for clamping bones.
The further technical proposal is that the joint surface of the sandwich plate and the bone is an arc surface.
The further technical scheme is that fixing protrusions are distributed on the end face of the bottom of the threaded ejector rod.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in:
the holding forceps are fixed at the far end of the fracture, so that the holding forceps can be fixed at the position of the intact bone, the holding forceps are connected with the jacking mechanism with the threaded ejector rod to jack the tilted bone stubble, three-point fixation is adopted, the condition of supporting which requires manpower in operation is replaced, and accordingly the balance of the stress of the bone stubble and the stable structure of the pressing can be ensured in the long-time operation process. Meanwhile, the situation that bone stubbles are loosened and even tilted again caused by unbalanced stress or instability in operation is avoided.
And because the fracture end is only covered by the implanted threaded ejector rod, the needed incision is smaller, thereby avoiding the situation that the incision is too large to damage blood circulation, the composite time is long and even the fracture cannot heal, and improving the minimally invasive nature of the operation. And the pressing force of the threaded ejector rod is mild, so that the bone stubble at the weak part is not broken and the anatomical structure is not damaged due to the overlarge pressing force.
Meanwhile, the connecting frame is provided with a plurality of connecting holes in different positions and directions, the threaded ejector rod can penetrate through any connecting hole, so that the tilting angle of the threaded ejector rod and the bone stubble is matched, the weak point of the bone stubble is avoided, the most suitable jacking position is achieved, and the bone stubble is stably and effectively pressed and covered.
And, cooperate roof pressure mechanism still to be equipped with climbing mechanism, fix during the operation and carry out effectual and stable support to the unsettled limbs of patient subaerial, can adjust the supporting height simultaneously in order to cooperate different support demands to with screw thread ejector pin combined action, reach and stabilize and effectual reset press the cover effect to perk bone stubble.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic view of the structure of the present invention in a use state;
FIG. 2 is a schematic left-hand view of the holding forceps of the invention;
FIG. 3 is a schematic illustration of an isometric construction of a holding clamp according to the present invention;
FIG. 4 is a schematic structural view of the jacking mechanism according to the present invention;
fig. 5 is a schematic side view of the lifting mechanism according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art without making any inventive effort, are intended to be within the scope of the present invention based on only the embodiments of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1 to 5, the device for reducing and holding a refractory intertrochanteric fracture comprises: a holding clamp 1, a jacking mechanism 2 and a jacking mechanism 3. The holding forceps 1 is used for clamping limbs of a patient and comprises a left forceps handle 11 and a right forceps handle 12 which are mutually hinged through a pin shaft, a limiting plate 13 is connected between the left forceps handle 11 and the right forceps handle 12, an arc-shaped hole 130 is formed in the limiting plate 13 along the opening and closing track of the holding forceps 1, the left forceps handle 11 is fixedly connected with one end of the limiting plate 13, a limiting bolt 121 capable of sliding in the arc-shaped hole 130 is fixed on the right forceps handle 12, and a nut matched with the thread of the limiting bolt 121 is sleeved on the limiting bolt.
The jacking mechanism 2 comprises a fixing rod 21 coaxially fixed on a pin shaft, one end of the fixing rod 21, far away from the holding forceps 1, is fixedly provided with a connecting frame 22, the connecting frame 22 is of an inverted bowl-shaped structure, a plurality of connecting holes 220 with connecting threads are formed in the arc surface of the connecting frame, a threaded ejector rod 221 is arranged below the connecting frame 22, the threaded ejector rod 221 can penetrate into any connecting hole 220, and the upper end of the threaded ejector rod is locked through a screwing nut.
The jacking mechanism 3 comprises a link mechanism 31, a jacking plate 32 fixed above the link mechanism 31 and a fixing base 33 fixed below the link mechanism 31, wherein the link mechanism 31 comprises two vertical first links 311 which are arranged at left and right intervals, an adjusting rod 310 transversely penetrates through the two first links 311, the adjusting rod 310 is in threaded connection with the first links 31, one end of the adjusting rod extends outwards, a second link 312 is hinged above each first link 311, the two second links 312 are in a splayed structure, a third link 313 is hinged below each first link 311, and the two third links 313 are in an inverted splayed structure.
The holding device is mainly applied to the situations of intertrochanter fracture, partial femoral shaft fracture, intertrochanter fracture and the like, in the use process, firstly, a patient is fixed on an operation bed in an operation posture, at this time, the limbs of the patient are pulled to be in a suspended state, and falling force is generated due to the action of gravity, so that bone stubbles cannot be aligned, and therefore, the jacking mechanism 3 is required to be placed below the suspended limbs to support the limbs, so that the limbs of the patient are kept in a stable state, and the bone stubbles can be aligned. When in support, the fixed base 33 is firstly stably placed on the floor under the limb and is aligned with the support position up and down, then the adjusting rod 310 is rotated to gradually reduce the distance between the two first connecting rods 311, so that the distance between the two second connecting rods 312 and the connecting ends of the third connecting rods 313 and the first connecting rods 311 is driven to be continuously reduced, one ends of the two second connecting rods 312 and the third connecting rods 313, which are far away from the first connecting rods 311, are respectively moved up and down, the height of the whole jacking mechanism 3 is continuously increased until the whole jacking mechanism can contact the limb and support the limb to a proper height, and then the rotating of the adjusting rod 310 is stopped. The lifting mechanism 3 can be stably supported below the suspended limb at the moment, and the bone stubble is pressed and covered by matching with the subsequent operation until the operation is finished, and when the supporting is not needed, the adjusting rod 310 is reversely rotated, so that the lifting mechanism 3 is lowered and pulled out.
After the limb is supported by the jacking mechanism 3, the bone is cut at a proper distance from the fracture position according to the fracture position, the nut on the limit bolt 121 is unscrewed, the holding forceps 1 is clamped on the bone at the cut and the adjusting mechanism 2 faces the fracture end, at this time, the fixing rod 21 is perpendicular to the plane of the holding forceps 1 and the connecting frame 22 is positioned above the fracture position. After the holding forceps 1 are clamped, the limit bolts 121 are locked, so that the holding forceps 1 are fixedly clamped above the limb. A small incision into which the threaded rod 221 can be inserted is made at a suitable position where the stubble lifts up and breaks, which is a position where the stubble can be forced against and not damaged due to its weakness. Then, the connecting hole 220 at a proper position is selected to be screwed into the threaded ejector rod 221 and locked by a nut, so that the threaded ejector rod 221 is implanted from a small incision, and the bone stubble is effectively and stably pressed and covered at the optimal angle position, thus the pressing and covering operation of the tilted bone stubble is completed by matching with the jacking mechanism 3, and the holding forceps 1 and the jacking mechanism 3 are respectively withdrawn after the pressing and covering operation is completed, and the post-operation treatment is completed.
Through fixing the holding forceps 1 at the far end of the fracture, the holding forceps 1 can be fixed at the intact bone so as to be more stable, and the holding forceps 1 is connected with the jacking mechanism 2 with the threaded ejector rod 221 to jack up and press the tilted bone stubble, so that the three-point fixing is adopted, the condition of supporting which requires manpower in the operation is replaced, and the balanced stress of the bone stubble and the stable pressing structure can be still ensured in the long-time operation process. Meanwhile, the situation that bone stubbles are loosened and even tilted again caused by unbalanced stress or instability in operation is avoided. And because the fracture end is only covered by the implanted thread ejector rod 221, the needed incision is smaller, thereby avoiding the situation that the incision is too large to damage blood circulation, the composite time is long and even the fracture cannot heal, and improving the minimally invasive nature of the operation. And the pressing force of the threaded ejector rod 221 is mild, so that the bone stubble at the weak part is not broken and the anatomical structure is not damaged due to the overlarge pressing force.
Meanwhile, the connecting frame 22 is provided with a plurality of connecting holes 220 in different positions and directions, the threaded ejector rod 221 can penetrate through any connecting hole 220, so that the raising angle of the threaded ejector rod 221 and a bone stubble is matched, and the weak part of the bone stubble is avoided, thereby achieving the most suitable jacking position, and stably and effectively covering the bone stubble. And, still be equipped with climbing mechanism 3 in cooperation with roof pressure mechanism 2, fix and carry out effective and stable support to patient unsettled limbs subaerial during the operation, can adjust supporting height simultaneously in order to cooperate different support demands to with screw thread ejector pin 221 combined action, reach and stabilize and effectual reset and press the cover effect to perk bone stubble.
In order to make the support of the jacking mechanism 3 more stable, the number of the link mechanisms 31 is two, and a space capable of accommodating the limb of the patient is provided between the two link mechanisms 31. The two link mechanisms 32 act together, the bottom encloses into stable quadrilateral structure, places the fracture limbs on the jack-up board 32 of two top, can provide bigger holding power to make the placing of limbs more balanced, can not produce and rock, guaranteed going on smoothly of operation. Meanwhile, the jack-up plate 32 is provided as an arc plate conforming to the outer shape of the limb. Thereby the limbs are wound in the ring, further preventing the limbs from shaking in the operation and increasing the stability of support and stress.
Since the lifting mechanism 3 is known to change the lifting height by rotating the adjustment lever 310, a rotation block 3101 is fixed to the non-extending end of the adjustment lever 310, a rotation hole 3102 is formed in the rotation block perpendicular to the adjustment lever 310, and a rotation grip 3103 is provided in the rotation hole 3102. In this way, the rotation handle 332 is held to rotate to drive the adjusting rod 33 to rotate, so that the height of the jacking mechanism 3 is changed, the adjustment rod is easier and more labor-saving than the direct rotation of the adjusting rod 310, time and resources are saved, the height of the jacking mechanism 3 is changed in the adjustment mode, the adjustment after the jacking mechanism contacts limbs is milder, the supporting height and strength can be accurately and slowly determined, and the ideal use effect is achieved.
Since the angle and position of the pressing are very important when the stubble is pressed by the screw rod 221, the connecting hole 220 is provided as a universal locking hole, and the universal locking hole used here is of an existing structure, in addition to providing the arc-shaped connecting plate 22 so that the screw rod 221 can be inserted from multiple directions. Therefore, when the bone stubble is covered, fine angle adjustment can be performed, so that the bone stubble can meet the supporting requirement, the operation accuracy is improved, the universal locking hole can automatically lock the threaded ejector rod 221, the step of locking by using a nut is omitted, and the covering operation is more convenient and quick.
As a supporting point of the holding device, in order to secure the holding stability of the holding forceps 1, a clamp plate 14 for holding bone is symmetrically fixed to the lower ends of the left forceps handle 11 and the right forceps handle 12, and the bonding surface of the clamp plate 14 and the bone is an arc surface. This increases the contact area between the holding forceps 1 and the bone, and increases the friction force between the two, thereby making the holding forceps 1 more stable and providing more support force for the threaded ejector rod 221.
Meanwhile, in order to increase the pressing force and stability between the threaded ejector rod 221 and the bone stubble, fixing protrusions 2210 are distributed on the bottom end surface of the threaded ejector rod 221, and the fixing protrusions 2210 are of a tooth-shaped structure, so that the threaded ejector rod 221 can firmly push against the bone stubble after implantation, sliding and deviation cannot occur, and damage to an anatomical structure is caused.
The foregoing is only a preferred embodiment of the present invention, and any and all simple modifications, variations and equivalents of the present invention will fall within the scope of the present invention.
Claims (6)
1. The refractory intertrochanter fracture reduction holding device is characterized by comprising:
the holding forceps (1) is used for being clamped on limbs of a patient, the holding forceps (1) comprises a left forceps handle (11) and a right forceps handle (12) which are hinged with each other through a pin shaft, a limiting plate (13) is connected between the left forceps handle (11) and the right forceps handle (12), an arc-shaped hole (130) is formed in the limiting plate (13) along the opening and closing track of the holding forceps (1), the left forceps handle (11) is fixedly connected with one end of the limiting plate (13), a limiting bolt (121) capable of sliding in the arc-shaped hole (130) is fixed on the right forceps handle (12), and a nut matched with the threads of the limiting bolt is sleeved on the limiting bolt (121);
the jacking mechanism (2) comprises a fixed rod (21) coaxially fixed on the pin shaft, a connecting frame (22) is fixed at one end, far away from the holding forceps (1), of the fixed rod (21), the connecting frame (22) is of an inverted bowl-shaped structure, a plurality of connecting holes (220) with connecting threads are formed in the arc surface of the connecting frame, a threaded ejector rod (221) is arranged below the connecting frame (22), the threaded ejector rod (221) can penetrate into any connecting hole (220), and the upper end of the threaded ejector rod is locked through a screwing nut;
the jacking mechanism (3) comprises a connecting rod mechanism (31), a jacking plate (32) fixed above the connecting rod mechanism (31) and a fixed base (33) fixed below the connecting rod mechanism (31), wherein the connecting rod mechanism (31) comprises two first connecting rods (311) which are vertical and are arranged at left and right intervals, an adjusting rod (310) transversely penetrates through the two first connecting rods (311), the adjusting rod (310) is in threaded connection with the first connecting rods (31) and one end of the adjusting rod extends outwards, a second connecting rod (312) is hinged above each first connecting rod (311), the two second connecting rods (312) are in a splayed structure, a third connecting rod (313) is hinged below each first connecting rod (311), and the two third connecting rods (313) are in an inverted splayed structure;
the number of the link mechanisms (31) is two, and a space capable of accommodating limbs of a patient is arranged between the two link mechanisms (31);
the jacking plate (32) is an arc-shaped plate which is fit with the appearance of the limb.
2. The refractory intertrochanter fracture reduction holding device according to claim 1, wherein a rotating block (3101) is fixed at the non-extending end of the adjusting rod (310), a rotating hole (3102) is formed in the rotating block perpendicular to the adjusting rod (310), and a rotating grip (3103) is arranged in the rotating hole (3102) in a penetrating mode.
3. The refractory intertrochanteric fracture reduction holding device according to claim 1, wherein the connecting hole (220) is a universal locking hole.
4. The refractory intertrochanter fracture reduction holding device according to claim 1, wherein a clamping plate (14) for clamping bones is symmetrically fixed at the lower ends of the left forceps handle (11) and the right forceps handle (12).
5. The refractory intertrochanteric fracture reduction holding device according to claim 4, wherein the contact surface between the clamping plate (14) and the bone is an arc surface.
6. The refractory intertrochanteric fracture reduction holding device according to claim 1, wherein fixing protrusions (2210) are distributed on the bottom end surface of the threaded ejector rod (221).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910145998.7A CN109938814B (en) | 2019-02-27 | 2019-02-27 | Reduction holding device for refractory intertrochanter fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910145998.7A CN109938814B (en) | 2019-02-27 | 2019-02-27 | Reduction holding device for refractory intertrochanter fracture |
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| Publication Number | Publication Date |
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| CN109938814A CN109938814A (en) | 2019-06-28 |
| CN109938814B true CN109938814B (en) | 2023-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910145998.7A Active CN109938814B (en) | 2019-02-27 | 2019-02-27 | Reduction holding device for refractory intertrochanter fracture |
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| CN (1) | CN109938814B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112545611B (en) * | 2020-12-02 | 2022-03-08 | 中国科学院大学宁波华美医院 | Femoral tuberosity resetting device |
| CN114681029B (en) * | 2020-12-31 | 2024-08-27 | 四川省骨科医院 | Split type ankle joint external fixation device |
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| CN209996449U (en) * | 2019-02-27 | 2020-01-31 | 陈伟 | Reduction holding device for difficult renaturation intertrochanteric fracture |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR9816017A (en) * | 1998-09-17 | 2001-06-05 | Synthes Ag | Forceps for grasping bone or bone fragments and device for external fixation of bone fractures |
| US8656917B2 (en) * | 2009-11-30 | 2014-02-25 | Gemm Quality Products Llc | Limb support device |
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|---|---|---|---|---|
| CN2102735U (en) * | 1991-03-18 | 1992-04-29 | 刘岩松 | Outer-traction fixer for legs fracture |
| CN101404944A (en) * | 2006-01-27 | 2009-04-08 | 史密夫和内修有限公司 | Fracture reduction assembly |
| CN201337512Y (en) * | 2009-01-23 | 2009-11-04 | 王培吉 | Pressuring locking type fracture resetting tongs |
| CN201987802U (en) * | 2011-03-03 | 2011-09-28 | 陈慧 | Adjustable limb lifting brace |
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| CN109938814A (en) | 2019-06-28 |
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