CN106691556B - Fracture multidirectional reduction external fixator - Google Patents
Fracture multidirectional reduction external fixator Download PDFInfo
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- CN106691556B CN106691556B CN201611048495.0A CN201611048495A CN106691556B CN 106691556 B CN106691556 B CN 106691556B CN 201611048495 A CN201611048495 A CN 201611048495A CN 106691556 B CN106691556 B CN 106691556B
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- joint
- sleeve
- ball
- universal
- adjusting bolt
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
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- 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8866—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices for gripping or pushing bones, e.g. approximators
Abstract
The invention discloses a fracture multidirectional reduction external fixator which comprises a mandrel, a sleeve, a sliding rail mechanism, two mutually right angle direction fine tuning mechanisms, a first mounting part and a second mounting part of a bone needle, wherein a first universal device and a second universal device are arranged between the first mounting part and the mandrel and between the second mounting part of the bone needle and the sleeve respectively, the sliding rail mechanism comprises a cross dovetail guide rail, a first joint sleeve, a first dovetail block, a second dovetail block and a first adjusting bolt, the first dovetail block and the second dovetail block are respectively fixedly arranged on the first joint sleeve and the mandrel, the first dovetail block and the second dovetail block are respectively and slidingly arranged on the dovetail guide rail, the first adjusting bolt and the second adjusting bolt are respectively connected with the dovetail guide rail in a screwed mode, each angle direction fine tuning mechanism comprises an adjusting screw sleeve, a pair of rod end joint bearings respectively connected with two ends of the adjusting screw sleeve in a screwed mode, and two connecting rods respectively fixed on the second mounting parts of the sleeve and the bone needle, and each rod end joint bearing is respectively pivoted on the corresponding connecting rods. The invention adopting the scheme can correct lateral displacement and angular displacement of the fracture end, not only saves labor in operation, but also reduces the difficulty of fracture reduction operation.
Description
[ field of technology ]
The invention relates to a fracture multidirectional reduction external fixator which is used for conducting multidirectional reduction on a dislocated fracture end in an orthopedics minimally invasive surgery and belongs to the technical field of orthopedics medical appliances.
[ background Art ]
At present, the fracture reduction in the operation is basically realized by manual reduction of orthopedics doctors, the fracture ends are held by means of tools such as bone holding forceps, and the assistant assists traction to correct fracture displacement, so that more manpower is required. On the other hand, the fracture reduction external fixator is difficult to maintain after reduction, temporary fixation is needed to be achieved through means such as clamping of a reduction forceps, a Kirschner wire or a screw, and due to the fact that the damage to blood circulation of a fracture end caused by large wounds is large, periosteum is peeled off and damaged greatly, delayed healing and even bone nonunion are easy to occur.
[ invention ]
The invention aims to provide a fracture multidirectional reduction external fixator capable of correcting lateral displacement and angular displacement of fracture ends.
Therefore, the invention provides the following technical scheme:
the utility model provides a fracture diversified external fixator that resets, includes a dabber, suit in dabber's a sleeve pipe, the first installation department of bone needle and the second installation department of bone needle, has arranged first universal device between the first installation department of bone needle and the dabber, has arranged second universal device between bone needle second installation department and the sleeve pipe, first universal device is including being fixed in the universal joint ball on the first installation department of bone needle, the ball socket of loop on its universal ball of this universal joint ball, first joint cover and the ball seat that is located first joint cover, and first joint cover is connected with ball socket buckle, and this ball seat is the sphere contact with the universal ball through the eccentric pin of cartridge on first joint cover, the ball socket of loop on its universal ball, the ball cover of this universal joint ball, second joint cover and the ball seat that is located the second joint cover, and ball socket buckle are connected, and this ball seat is the sphere contact by the eccentric pin of cartridge on the second joint cover, and wherein, and second end portion directly takes shape by the improvement lies in: the sliding rail mechanism comprises a cross dovetail guide rail, a first dovetail block fixedly arranged on the end face of a first joint sleeve, a second dovetail block fixedly arranged on the end face of a mandrel, a first adjusting bolt and a second adjusting bolt, wherein the first dovetail block and the second dovetail block are respectively and slidably arranged on the cross dovetail guide rail, the first adjusting bolt and the second adjusting bolt are respectively and movably arranged on the first dovetail block and the second dovetail block, and the first adjusting bolt and the second adjusting bolt are mutually and directly screwed on the cross dovetail guide rail, the first adjusting bolt and the second adjusting bolt are rotated, the vertical space positions of the first mounting part of the bone needle and the second mounting part of the bone needle can be adjusted, one angular fine adjustment mechanism comprises an adjusting screw sleeve, a pair of rod end joint bearings which are respectively connected with the two ends of the adjusting screw sleeve in a rotating mode, two connecting rods which are respectively fixed on the sleeve and the second mounting part of the bone needle and are parallel to each other, each rod end joint bearing is respectively pivoted on one corresponding connecting rod, the other angular fine adjustment mechanism comprises an adjusting screw sleeve, a pair of rod end joint bearings which are respectively connected with the two ends of the adjusting screw sleeve in a rotating mode, and two connecting rods which are respectively fixed on the sleeve and the second mounting part of the bone needle and are parallel to each other, and each rod end joint bearing is respectively pivoted on one corresponding connecting rod.
Preferably, the first dovetail groove block and the first joint sleeve are an integral piece, and the second dovetail groove block and the mandrel are an integral piece.
In order to save the die opening cost and reduce the manufacturing cost of the fracture multi-azimuth reduction external fixator, the one angular fine adjustment mechanism and the other angular fine adjustment mechanism are two universal mechanisms.
Compared with the prior art, the invention has the following advantages and positive effects:
after the technical scheme is adopted, when the first adjusting bolt is rotated (when the bolt is in a horizontal state), the first dovetail groove block is translated to drive the first mounting part of the bone needle to correspondingly translate, so that the fracture end connected with the first mounting part of the bone needle translates relative to a static human body, and the effect of correcting lateral displacement of the fracture end connected with the first mounting part of the bone needle is finally achieved; similarly, when the second adjusting bolt is rotated (when the bolt is in a vertical state), the second dovetail groove block is moved up and down to drive the second mounting part of the bone needle to move up and down correspondingly, and the height position of the fracture end connected with the second mounting part of the bone needle relative to the lying human body can be adjusted, so that the effect of correcting the lateral displacement of the other side of the fracture end connected with the second mounting part of the bone needle is finally achieved.
When the screw sleeve of the angle fine adjustment mechanism is rotated, the second mounting part of the bone needle is tilted upwards or sagged, so that the elevation angle or the inclination angle of the fracture end connected with the second mounting part of the bone needle is finely adjusted, and finally, the effect of correcting the angular displacement of the fracture end connected with the second mounting part of the bone needle is achieved; similarly, when the screw sleeve of the other angle fine adjustment mechanism is rotated, the second mounting part of the bone needle tends to move towards the human body or deviates from the human body so as to finely adjust the outward-deviation angle or the inward-deviation angle of the fracture end connected with the second mounting part of the bone needle, thereby finally achieving the effect of correcting the other angular displacement of the fracture end connected with the second mounting part of the bone needle.
In addition, the fracture reduction operation is labor-saving, simple and convenient, the labor consumption is less, the requirements of fracture reduction and fixation are well met, the fracture multidirectional reduction external fixator is matched for use in the minimally invasive orthopaedics operation, the fracture reduction operation difficulty is greatly reduced, periosteum stripping and blood transport damage can be reduced, the reduction precision is improved, the fracture healing is facilitated, the pain of a patient is relieved, the subsequent installation of the bone fracture plate is facilitated, and meanwhile, the application of the percutaneous minimally invasive internal fixation technology is simpler and more convenient.
[ description of the drawings ]
The invention will be described in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic view of the structure of the fracture multi-azimuth reduction external fixator of the present invention;
FIG. 2 is a schematic view of a sleeve structure in accordance with the present invention;
FIG. 3 is a radial cross-section of a mandrel in the present invention;
FIG. 4 is a schematic view of a ball seat structure in a first gimbal assembly;
FIG. 5 is a schematic view of a ball seat structure in a second gimbal assembly;
FIG. 6 is a schematic view of an angular adjustment mechanism;
FIG. 7 is a schematic view of another angular adjustment mechanism;
FIG. 8 is a perspective view of a cross dovetail rail;
FIG. 9 is a schematic view of the structure of the first dovetail block and the first adapter sleeve as a unit.
[ detailed description ] of the invention
Please refer to fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, which are preferred embodiments of the present invention.
The fracture multidirectional reduction external fixator comprises a mandrel 3, a sleeve 4 sleeved on the mandrel 3, a first bone needle mounting part 1 and a second bone needle mounting part 2, wherein a first universal device 5 is arranged between the first bone needle mounting part 1 and the mandrel 3, and a second universal device 6 is arranged between the second bone needle mounting part 2 and the sleeve 4.
The sleeve 4 is provided with a screw hole 40, after the set screw S0 is screwed in, the head end of the set screw S0 is propped against the bottom of the adjusting long groove 30 formed in the mandrel 3, and the adjustable fixing of the sleeve 4 and the mandrel 3 is completed.
The first bone needle mounting part 1 consists of a mounting seat 11, a needle clamping plate 12 and an inner hexagon bolt S. The needle clamping plate 12 is fixed by two hexagon socket head cap bolts S after being arranged on the mounting seat 11, the first mounting part 1 of the fixed bone needle is just like an elliptic cylinder, and the matched elliptic cylinder is provided with a mounting hole 10 for mounting the bone needle and the connecting rod; the second mounting part 2 of the bone needle is also composed of a mounting seat 21, a needle clamping plate (not visible in fig. 1) and an inner hexagon bolt S, the needle clamping plate is fixed by two inner hexagon bolts S after being mounted on the mounting seat 21, the second mounting part 2 of the bone needle after being fixed is also an elliptic cylinder, and the elliptic cylinder formed by involution is provided with a mounting hole 20 for mounting the bone needle and the connecting rod. In order to save the die sinking cost, the first mounting part 1 of the bone needle and the second mounting part 2 of the bone needle have the same structure.
Referring to the left hand side of fig. 1, the first universal device 5 includes a universal joint ball 51 fixed on the first mounting portion 1 of the bone needle, a ball head sleeve 52 movably sleeved on the universal ball head 511 of the universal joint ball 51, a first joint sleeve 53, and a ball head seat 54 located in the first joint sleeve 53, wherein the ball head sleeve 52 is in snap connection with the first joint sleeve 53, and the ball head seat 54 is in spherical contact with the universal ball head 511 through an eccentric pin H inserted on the first joint sleeve 53.
The joint handle 512 of the universal joint ball 51 is fixedly connected with the mounting seat 11 into a whole through a small cylindrical pin (not visible in the figure); the eccentric pin H is radially inserted into the pin hole 530 of the first joint sleeve 53, the ball seat 54 is axially lined in the first joint sleeve 53, a concave curved surface matched with the universal ball 511 is formed on the opposite side (the outer side of the ball seat 54) of the ball seat 54 and the universal ball 51, a concave pit 540 matched with the eccentric pin H is formed on the opposite side (the inner side of the ball seat 54) of the ball seat 54 and the eccentric pin H, and when the eccentric pin H is rotated, the ball seat 54 can slightly move axially and be in spherical contact with the universal ball 511, as shown in fig. 4, 5 and 9.
Referring to the right hand side of fig. 1, the second universal device 6 includes a universal joint ball 61 fixed on the second mounting portion 2 of the bone needle, a ball head sleeve 62 movably sleeved on a universal ball head 611 of the universal joint ball 61, a second joint sleeve 41, and a ball head seat 64 located in the second joint sleeve 41, wherein the ball head sleeve 62 is in snap connection with the second joint sleeve 41, the ball head seat 64 is in spherical contact with the universal ball head 611 through an eccentric pin H inserted on the second joint sleeve 41, and the second joint sleeve 41 is directly formed by an end portion (right end portion in fig. 1) of the sleeve 4.
The joint handle 612 of the universal joint ball 61 is fixedly connected with the mounting seat 21 into a whole through a small cylindrical pin I; the eccentric pin H is radially inserted into the second joint sleeve 41, the ball seat 64 is axially lined into the second joint sleeve 41, a concave curved surface matched with the universal ball 611 is formed on the opposite side (the outer side of the ball seat 64) of the ball seat 64 and the universal joint ball 61, a concave pit 640 matched with the eccentric pin H is formed on the opposite side (the inner side of the ball seat 64) of the ball seat 64 and the eccentric pin H, and when the eccentric pin H is rotated, the ball seat 64 can slightly move axially and be in spherical contact with the universal ball 611, as shown in fig. 4 and 5.
The universal joint ball 51, the ball head sleeve 52 and the ball head seat 54 in the first universal device 5 and the universal joint ball 61, the ball head sleeve 62 and the ball head seat 64 in the second universal device 6 respectively have the same structure, so that the universality of parts is strong.
The improvement of the present application is that it further comprises a slide rail mechanism 7, an angular trimming mechanism 8 (shown as a vertical top in fig. 1) mounted on the sleeve 4 and the second mounting portion 2 of the bone needle, and another angular trimming mechanism 9 (shown as a bottom in fig. 1) mounted on the sleeve 4 and the second mounting portion 2 of the bone needle, which are arranged at right angles to each other.
The slide rail mechanism 7 includes a cross dovetail rail 70, a first dovetail block 71 (having a horizontal groove, not visible in fig. 1) fixedly attached to an end surface of the first joint cover 53, a second dovetail block 72 (having a vertical groove, visible in fig. 1) fixedly attached to an end surface of the spindle 3, a first adjusting bolt S1, and a second adjusting bolt S2. The first dovetail groove block 71 and the second dovetail groove block 72 are respectively and slidably arranged on the cross dovetail guide rail 70, the first adjusting bolt S1 and the second adjusting bolt S2 are respectively and movably arranged on the first dovetail groove block 71 and the second dovetail groove block 72, and the first adjusting bolt S1 and the second adjusting bolt S2 are mutually and directly screwed on the cross dovetail guide rail 70.
As can be seen from fig. 8, dovetails on the left and right sides of the cross dovetail guide rail 70 are distributed in a space cross, and two screw holes in the space cross distribution are formed in the cross dovetail guide rail 70 for screwing the adjusting bolts.
The first dovetail block 71 is an integral piece with the first adapter sleeve 53; the second dovetail block 72 is integral with the spindle 3.
The second dovetail block 72 is welded to the left end of the mandrel 3.
As shown in fig. 1, the first dovetail groove block 71 has a bending portion 711, a first adjusting bolt S1 is horizontally disposed in a through hole formed in the bending portion 711, and a blocking piece S11 and a bolt head of the first adjusting bolt S1 are respectively located on an inner wall side and an outer wall side of the bending portion 711, and the first adjusting bolt S1 is horizontally screwed on the cross dovetail rail 70; similarly, the second dovetail block 72 has a bending portion 721, a second adjusting bolt S2 is vertically disposed in a through hole formed in the bending portion 721, and a baffle (not visible in fig. 1) and a bolt head of the second adjusting bolt S2 are respectively located on an inner wall side and an outer wall side of the bending portion 721, and the second adjusting bolt S2 is vertically screwed on the cross dovetail rail 70.
An angular fine adjustment mechanism 8 comprises an adjusting screw sleeve 80, rod end joint bearings 81, 82 respectively screwed on the left and right ends of the adjusting screw sleeve 80, two parallel connecting rods 83, 84 respectively fixed on the sleeve 4 and the second mounting part 2 of the bone needle, the rod end joint bearing 81 is pivoted on the connecting rod 83, and the rod end joint bearing 82 is pivoted on the connecting rod 84.
The other angular fine adjustment mechanism 9 comprises an adjusting screw sleeve 90, rod end joint bearings 91 and 92 respectively screwed on the left end and the right end of the adjusting screw sleeve 90, two parallel connecting rods 93 and 94 respectively fixed on the sleeve 4 and the second mounting part 2 of the bone needle, the rod end joint bearing 91 is pivoted on the connecting rod 93, and the rod end joint bearing 92 is pivoted on the connecting rod 94.
One of the fine adjustment mechanisms 8 and the other fine adjustment mechanism 9 are two common mechanisms.
When the invention is specifically used, an anesthesia scheme is determined according to the age and the illness state of a patient, the fracture displacement condition is determined under an X-ray machine to select a needle threading position, two stainless steel bone needles are respectively driven into legs at two ends of the fracture, and then the bone needles are respectively clamped and fixed by a first bone needle mounting part 1 and a second bone needle mounting part 2, so that the external fixator is positioned at the front and outer sides of the legs, and the length direction of the external fixator is consistent with the length direction of limbs.
The angular displacement and fixation of the fracture end are corrected by adjusting the adjusting screw sleeve 80 of one angular fine adjustment mechanism 8 and the adjusting screw sleeve 90 of the other angular fine adjustment mechanism 9 respectively.
When the lateral displacement of the fracture end needs to be adjusted, the two adjusting bolts S1 and S2 of the slide rail mechanism are rotated.
When the diaphysis shortening condition occurs, the set screw S0 is loosened, after the moving sleeve 4 is in place, the set screw S0 is tightened until it abuts the adjustment slot 30.
Claims (2)
1. The utility model provides a fracture diversified external fixator that resets, includes a dabber, suit in dabber's a sleeve pipe, the first installation department of spicule and the second installation department of spicule, has arranged first universal device between the first installation department of spicule and the dabber, has arranged second universal device between the first installation department of spicule and the sleeve pipe, first universal device is including being fixed in the universal joint ball on the first installation department of spicule, the loop is the ball cover on its universal joint ball, first joint cover and the ball seat that is located first joint cover, first joint cover and ball head cover buckle are connected, this ball seat is spherical contact through the eccentric pin of cartridge on first joint cover with the universal ball, the second universal device is including being fixed in the universal joint ball on its universal joint ball, second joint cover and the ball seat that is located the second joint cover, and the ball seat is connected with the ball cover to the second joint cover through the ball head cover that is the eccentric pin of cartridge on its universal joint, wherein, second joint cover and the tip is direct shaping by the tip, characterized in that: the sliding rail mechanism comprises a cross dovetail guide rail, a first dovetail groove block fixedly arranged on the end face of the first joint sleeve, a second dovetail groove block fixedly arranged on the end face of the mandrel, a first adjusting bolt and a second adjusting bolt, the first dovetail groove block and the second dovetail groove block are respectively and slidably arranged on the cross dovetail guide rail, the first adjusting bolt and the second adjusting bolt are respectively and movably arranged on the first dovetail groove block and the second dovetail groove block, and the first adjusting bolt and the second adjusting bolt are mutually and perpendicularly screwed on the cross dovetail guide rail; the other angular fine tuning mechanism comprises an adjusting screw sleeve, a pair of rod end joint bearings respectively screwed on two ends of the adjusting screw sleeve, and two mutually parallel connecting rods respectively fixed on the second installation parts of the sleeve and the bone needle, wherein each rod end joint bearing is respectively pivoted on the corresponding connecting rod, the other angular fine tuning mechanism comprises an adjusting screw sleeve, a pair of rod end joint bearings respectively screwed on two ends of the adjusting screw sleeve, and two mutually parallel connecting rods respectively fixed on the second installation parts of the sleeve and the bone needle, each rod end joint bearing is respectively pivoted on the corresponding connecting rod, and the one angular fine tuning mechanism and the other angular fine tuning mechanism are universal.
2. The fracture multi-aspect reduction external fixator of claim 1, wherein: the first dovetail groove block and the first joint sleeve are integrated, and the second dovetail groove block and the mandrel are integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611048495.0A CN106691556B (en) | 2016-11-18 | 2016-11-18 | Fracture multidirectional reduction external fixator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611048495.0A CN106691556B (en) | 2016-11-18 | 2016-11-18 | Fracture multidirectional reduction external fixator |
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| CN106691556A CN106691556A (en) | 2017-05-24 |
| CN106691556B true CN106691556B (en) | 2023-07-04 |
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| CN201611048495.0A Active CN106691556B (en) | 2016-11-18 | 2016-11-18 | Fracture multidirectional reduction external fixator |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109662767B (en) * | 2018-12-26 | 2020-07-03 | 大博医疗科技股份有限公司 | Near joint deformity correction external fixation support |
| CN109464184B (en) * | 2019-01-15 | 2020-02-21 | 河南省中医院（河南中医药大学第二附属医院） | Limb long bone diaphysis fracture reduction device |
| CN113648065B (en) * | 2021-07-30 | 2023-12-19 | 上海大学 | Clamping apparatus of pelvis fracture reduction robot |
| CN113813054B (en) * | 2021-08-13 | 2023-11-17 | 上海大学 | Universal adjusting type pelvis clamping instrument of pelvis fracture reduction robot |
| CN113974815A (en) * | 2021-10-22 | 2022-01-28 | 上海大学 | Universal and hydraulic expansion type clamping instrument of pelvic fracture reduction robot |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202128531U (en) * | 2011-06-03 | 2012-02-01 | 梁伟 | Telescopic outer fixing rack of ankle fracture |
| CN204655020U (en) * | 2015-04-21 | 2015-09-23 | 张家港市亚堤仕医疗咨询管理有限公司 | A kind of skin drafting system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3842255C2 (en) * | 1988-12-15 | 1995-08-03 | Leibinger Medizintech | External bone fragment connector |
| CN2219680Y (en) * | 1995-04-08 | 1996-02-14 | 赵生普 | Combined single arm type external fixation device for reduction of fracture |
| JP3752146B2 (en) * | 2000-12-07 | 2006-03-08 | 株式会社フォーエスメディカル | External fixator |
| AU2013249076B2 (en) * | 2012-04-20 | 2018-03-29 | Jai Singh | Repositionable medical instrument support systems, devices, and methods |
| CN104057315B (en) * | 2014-04-09 | 2016-04-20 | 横店集团东磁股份有限公司 | A kind of clamping device of processing rigid alloy top hammer outer cone circle |
| CN204353842U (en) * | 2014-12-05 | 2015-05-27 | 重庆耀勇减震器有限公司 | Shock-absorber cylinder processing tool |
| CN105997210B (en) * | 2016-06-08 | 2018-10-12 | 迪恩医疗科技有限公司 | A kind of multi-faceted orthopedic external fixer of vertebral column minimally invasive |
| CN206745428U (en) * | 2016-11-18 | 2017-12-15 | 周海东 | Fracture multi-faceted external fixator for restoring |
-
2016
- 2016-11-18 CN CN201611048495.0A patent/CN106691556B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202128531U (en) * | 2011-06-03 | 2012-02-01 | 梁伟 | Telescopic outer fixing rack of ankle fracture |
| CN204655020U (en) * | 2015-04-21 | 2015-09-23 | 张家港市亚堤仕医疗咨询管理有限公司 | A kind of skin drafting system |
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