CN113520567B - Nail taking device for orthopedics department - Google Patents
Nail taking device for orthopedics department Download PDFInfo
- Publication number
- CN113520567B CN113520567B CN202110894466.0A CN202110894466A CN113520567B CN 113520567 B CN113520567 B CN 113520567B CN 202110894466 A CN202110894466 A CN 202110894466A CN 113520567 B CN113520567 B CN 113520567B
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- clamping
- outer cylinder
- barrel
- pressing sleeve
- nail
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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
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
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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
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
- A61B2017/922—Devices for impaction, impact element
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
A nail taking device for orthopedics department comprises an outer cylinder body, wherein one end of the outer cylinder body is provided with a clamping part, the clamping part is provided with an installation cylinder, an annular cavity is formed between the installation cylinder and the inner side wall of the outer cylinder body, the inner side wall of the installation cylinder is provided with installation grooves communicated with the annular cavity, each installation groove is internally provided with a clamping head, a plurality of clamping heads can synchronously reciprocate along the radial direction, a pressing sleeve is arranged inside the outer cylinder body, the outer side of each clamping head is provided with a wedge-shaped surface, one end of the pressing sleeve is in contact with the wedge-shaped surface, a first spring is connected between one end of the outer side of each clamping head and the installation cylinder, a support plate is fixed inside the pressing sleeve, at least one ejector rod is arranged on the support plate, and the axis of the ejector rod and the center of the outer cylinder body are eccentrically arranged; the outer side wall of the outer cylinder body is fixedly connected with the support frame, the invention has convenient use and labor-saving operation, can improve the working efficiency and avoid secondary damage.
Description
Technical Field
The invention belongs to the technical field of auxiliary equipment for orthopedic medical treatment, and particularly relates to a nail taking device for orthopedics.
Background
Orthopedics mainly studies anatomy, physiology and pathology of a skeletal muscle system, maintains and develops normal form and function of the system by using medicines, operations and physical methods, and changes of times and society cause obvious changes of orthopedics injury disease spectrums, for example, diseases such as osteoarticular tuberculosis, osteomyelitis, poliomyelitis and the like are obviously reduced, wounds caused by traffic accidents are obviously increased, and the orthopedic injury disease spectrums are changed, so that orthopedics is required to be developed all the time, traditional Chinese medicine treatment of orthopedics diseases is gradually pursued by people along with the development of traditional Chinese medicine, and clinically, a screw is usually matched with a steel plate to perform internal fixation on a fracture position.
In the existing medical technology, in the mode of taking out the screw, the method adopted at present is to firstly grind off the screw cap by a drill bit to take out the steel plate and then to open a groove and drill a hole around the screw to take out the screw, the operation process increases trauma, the fracture part is traumatized again, secondary fracture is easy to happen, when the screw is broken, sclerotin or drilling holes are arbitrarily chiseled off to cause excessive bone tissue damage, intraoperative fracture or postoperative re-fracture occurs, iatrogenic injury is caused to a patient, the risk of infection and re-fracture is increased, hospitalization medical expenses of the patient are increased, medical disputes are caused, the operation is not convenient, the normal operation of taking the screw in orthopedics is not facilitated, and the work burden of medical workers is increased.
Disclosure of Invention
The invention aims to provide an orthopedic nail taking device, which solves the problems that in the prior art, a bone nail is inconvenient to take out, and secondary injury to a human body is easily caused.
The invention provides an orthopedic nail extractor, which comprises an outer cylinder body, wherein one end of the outer cylinder body is provided with a clamping part, the clamping part is provided with an installation cylinder positioned in the cylinder body, one end of the outer side of the installation cylinder is fixedly connected with the outer cylinder body, an annular cavity is formed between the outer side wall of one end of the inner side of the installation cylinder and the inner side wall of the outer cylinder body, the inner side wall of the installation cylinder is provided with a plurality of mounting grooves which are uniformly distributed on the circumference, the mounting grooves are communicated with the annular cavity, each mounting groove is internally provided with a clamping head, the clamping heads can synchronously reciprocate along the radial direction, a pressing sleeve which is slidably installed along the axial direction of the outer cylinder body is arranged in the outer cylinder body, one end of the pressing sleeve is arranged in the annular cavity, the outer side of each clamping head is provided with a wedge-shaped surface, one end of the pressing sleeve is mutually contacted with the wedge-shaped surface, a first spring is connected between one end of the outer side of each clamping head and the mounting cylinder, a supporting plate is fixed inside the pressing sleeve, at least one ejector rod which is connected to the supporting plate in a sliding mode is arranged on the supporting plate, and the axis of the ejector rod and the center of the outer cylinder body are arranged in an eccentric mode; and the outer side wall of the outer barrel body is fixedly connected with a support frame.
Preferably, the circumference of the clamping heads are uniformly distributed on the inner side wall of the mounting cylinder, the number of the clamping heads is at least 3, and one end of the inner side of each clamping head is of a tip structure.
Preferably, the distance between the axis of the clamping head and the end surface of the outer cylinder body is not more than 5 mm.
Preferably, a gland is sleeved at one end, far away from the clamping portion, of the outer barrel, the gland is in threaded connection with the outer side wall of the outer barrel, and a second spring is connected between the inner top wall of the gland and the pressing sleeve.
Preferably, a top pressing barrel is arranged in the gland, and the lower end of the top pressing barrel is always in contact with the end head of the pressing sleeve under the action of a second spring.
Preferably, the inside of pressing the sleeve be equipped with a plurality of interval parallel distribution's backup pad, the ejector pin is kept away from the one end of clamping part and is run through the backup pad and stretch out the outside of outer barrel, the one end that the ejector pin is close to the clamping part is most advanced structure, threaded connection between ejector pin and one of them backup pad at least.
Preferably, the number of the ejector rods is 2, 3 or 4, and the ejector rods are distributed on the same circumference.
Preferably, the inner side wall of the pressing sleeve at one end of the annular cavity is of a conical structure, and the interval between adjacent support plates in the pressing sleeve is not less than 5 cm.
In summary, the technical scheme of the invention at least has the following beneficial effects:
1. through designing a plurality of clamping heads which can synchronously and radially reciprocate in the clamping part, the multi-point pressure support of the bone nail in the radial direction can be realized;
2. the eccentric ejector rod is designed, so that the bone nail can be compressed from the axial direction, and the human body does not bear the jacking pressure by operation in the compression process, so that the medical experience is improved;
3. the invention has the advantages of ingenious integral structure, small volume, convenient operation and labor saving, and is suitable for medical use.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a perspective view I of the present invention;
FIG. 2 is a front view II of the present invention;
FIG. 3 is a front sectional view of the present invention;
FIG. 4 is a top view of the present invention;
FIG. 5 is a front view of the press sleeve construction of the present invention;
FIG. 6 is a perspective view of the clamping head configuration of the present invention;
FIG. 7 is a perspective view of the gland structure of the present invention;
FIG. 8 is a top cross-sectional view of the clamping position of the present invention;
FIG. 9 is a schematic view of the ejector pin structure of the present invention.
In the figure; 1. an outer cylinder; 2. mounting the cylinder; 3. an annular cavity; 4. a clamping head; 5. pressing the sleeve; 6. a wedge-shaped surface; 7. a first spring; 8. a support plate; 9. a top rod; 10. a support frame; 11. a gland; 12. a second spring; 13. and a top pressing cylinder.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
As can be seen from the attached drawings 1-9, the invention provides an orthopedic nail-removing device, which comprises an outer cylinder body 1 and a support frame 10, wherein the support frame 10 is used as a hand-held piece or a connecting part with a basic piece, the support frame 10 and the outer cylinder body 1 are of an integrated structure, one end of the outer cylinder body 1 is provided with a clamping part, the clamping part is used for clamping and fixing a nut part of a bone nail end laterally, and the specific structure of the clamping part is as follows: the clamping part is provided with an installation barrel 2 positioned in the barrel body, the installation barrel 2 and the outer barrel body 1 are a whole, an annular cavity 3 is formed between the outer side wall of one end of the inner side of the installation barrel 2 and the inner side wall of the outer barrel body 1, the inner side wall of the installation barrel 2 is provided with a plurality of mounting grooves which are uniformly distributed in the circumferential direction, the mounting grooves are communicated with the annular cavity 3, each mounting groove is internally provided with a clamping head 4, the structure of each clamping head 4 is that the inner side end is in a tip structure, the outer side end is provided with a wedge surface 6, the position of the wedge surface 6 of each clamping head 4 is intersected with the vertical extension of the annular cavity 3, a pressing sleeve 5 which is slidably mounted along the axial direction of the outer barrel body 1 is arranged in the annular cavity 3, one end of the pressing sleeve 5 is arranged in the wedge surface 6 of each clamping head 4, and the linear motion of the pressing sleeve 5 along the outer barrel body 1 can realize the synchronous radial motion of the plurality of the clamping heads 4 through the cooperation of the wedge surfaces 6 on the clamping heads 4, and then can realize the clamping operation, connect with the first spring 7 between one end of outside of every clamp head 4 and installation cylinder 2, the clamp head 4 can be moved to the outside under the influence of the first spring 7, and then realize the radial reciprocating motion, the clamping of the bone nail is unclamped and operated to the corresponding realization, there are backup pads 8 in pressing the inside of the sleeve 5, there are knockout pins 9 on the backup pad 8, it is threaded connection between backup pad 8 and the knockout pin 9, and the bottom end of the knockout pin 9 is the most advanced structure too, the knockout pin 9 is eccentric with the centre of clamping that a plurality of clamp heads 4 form, can make the most advanced of the bottom end of knockout pin 9 press against the position of the upper end off-center of the bone nail through rotating the knockout pin 9, clamp the bone nail through clamping to the lateral wall and terminal surface of the bone nail at the same time, then drive the outer cylinder 1 to rotate through rotating the support shelf 10, can realize the twisting of the bone nail, the nail taking operation is convenient, and simultaneously, the bone nail is not easy to slip in the screwing process through the design of the eccentric ejector rod 9. It should be noted that, in order to avoid the damage to the human body caused by the jacking of the jacking rod 9 in the use process, before the jacking rod 9 acts, the bone nail is firstly clamped by the clamping part, and the whole device is screwed by the support frame 10, so that the position of the bone nail is relatively screwed by the bone nail, and then the jacking action of the jacking rod 9 is performed, so that the risk of crush injury to the human body bone caused by the jacking force can be reduced or even avoided. The supporting frame 10 and the outer cylinder 1 are designed to be perpendicular to each other and can be used as a rotary wrench.
In order to ensure that the clamping heads 4 can better clamp the side wall of the screw cap part of the bone nail, the clamping heads 4 are uniformly distributed on the inner side wall of the mounting cylinder 2 in the circumference, the number of the clamping heads 4 is at least 3, the design is required according to the size of the bone nail, and meanwhile, the multi-point compression can improve the clamping reliability; in addition, because the volume of the bone nail is generally smaller, the distance between the axis of the clamping head 4 and the end surface of the outer cylinder body 1 is not more than 5mm, and the clamping part can be sleeved outside the bone nail nut.
In order to realize the reciprocating motion of the pressing sleeve 5 along the inner wall of the outer cylinder 1, a pressing cover 11 is sleeved at one end, away from the clamping portion, of the outer cylinder 1, the pressing cover 11 is in threaded connection with the outer side wall of the outer cylinder 1, the pressing sleeve 5 can be driven to move up and down through a pressing sleeve 13 by screwing the pressing cover 11, a second spring 12 is connected between the inner top wall of the pressing cover 11 and the pressing sleeve 5, one end of the second spring 12 is nailed on the pressing cover 11, the other end of the second spring 12 is rotatably connected with the pressing sleeve 5, in the specific design, the second spring 12 is rotatably connected to the supporting plate 8, a rotatably connected sliding block can be specifically designed on the supporting plate 8, the second spring 12 is connected to the sliding block, and in the screwing process of the pressing cover 11, the second spring 12 can generate certain torsion. In order to realize the movement of the outer cylinder 1 driven by the pressing cover 11, the connection structure of the second spring 12 may not be adopted, and only the lower end of the pressing sleeve 13 is connected with the upper end of the pressing sleeve 5 in a rotating manner, and the specific sliding connection structure may be realized by arranging an annular chute on the upper end surface of the pressing sleeve 5 and arranging a sliding block in the annular chute at the lower end of the pressing sleeve 13.
Because the ejector rod 9 is a slender rod-shaped structure, a plurality of support plates 8 which are distributed in parallel at intervals are arranged inside the pressing sleeve 5, one end, far away from a clamping part, of the ejector rod 9 penetrates through the support plates 8 and extends out of the outer part of the outer cylinder 1, the ejector rod 9 is in threaded connection with at least one support plate 8, and a hexagonal head which is convenient to screw is designed at one end of the outer side of the ejector rod 9, so that the ejector rod 9 can move up and down through screwing, the guide effect of the ejector rod 9 during moving can be improved through the design of the plurality of support plates 8, the bending of the ejector rod 9 is avoided, and the ejector rod 9 needs enough strength.
In order to realize better compaction effect, the ejector rods 9 are provided with 2, 3 or 4, and a plurality of ejector rods 9 are distributed on the same circumference.
Claims (8)
1. The utility model provides an orthopedics is with getting nail device, its characterized in that includes outer barrel (1), the one end of outer barrel (1) be equipped with the clamping part, the clamping part is equipped with and is located the inside installation section of thick bamboo (2) of barrel, the outside one end and the outer barrel (1) fixed connection of installation section of thick bamboo (2), be formed with annular chamber (3) between the lateral wall of the inboard one end of installation section of thick bamboo (2) and the inside wall of outer barrel (1), the inside wall of installation section of thick bamboo (2) is seted up the mounting groove of a plurality of circumference equipartitions, the mounting groove with annular chamber (3) intercommunication, install clamp head (4) in every mounting groove, a plurality of clamp head (4) can be along radial synchronous reciprocating motion, the inside pressure sleeve (5) of installing along outer barrel (1) axis direction slidable mounting of being equipped with of outer barrel (1), the annular chamber (3) is arranged in to the one end of pressure sleeve (5), a wedge-shaped surface (6) is arranged on the outer side of each clamping head (4), one end of the pressing sleeve (5) is in contact with the wedge-shaped surface (6), a first spring (7) is connected between one end of the outer side of each clamping head (4) and the mounting barrel (2), a supporting plate (8) is fixed inside the pressing sleeve (5), at least one ejector rod (9) which is connected to the supporting plate (8) in a sliding mode is arranged on the supporting plate (8), and the axis of the ejector rod (9) and the center of the outer barrel body (1) are arranged in an eccentric mode; the outer side wall of the outer cylinder body (1) is fixedly connected with a support frame (10).
2. The nail taking device for orthopedics department according to claim 1, characterized in that the clamping heads (4) are evenly distributed on the inner side wall of the installation barrel (2) in the circumference, the number of the clamping heads (4) is at least 3, and one end of the inner side of the clamping heads (4) is in a tip structure.
3. An orthopaedic nail-removing device according to claim 2, wherein the distance from the axis of the clamping head (4) to the end surface of the outer cylinder (1) is not more than 5 mm.
4. The orthopedic nail extractor according to claim 1, characterized in that a gland (11) is sleeved on one end of the outer cylinder (1) far away from the clamping portion, the gland (11) is in threaded connection with the outer side wall of the outer cylinder (1), and a second spring (12) is connected between the inner top wall of the gland (11) and the pressing sleeve (5).
5. The orthopedic nail-removing device according to claim 4, characterized in that a top pressing barrel (13) is arranged in the pressing cover (11), and the lower end of the top pressing barrel (13) is always contacted with the end of the pressing sleeve (5) under the action of the second spring (12).
6. The orthopedic nail extraction device according to claim 1, characterized in that a plurality of support plates (8) are arranged in parallel at intervals inside the pressing sleeve (5), one end of the ejector rod (9) far away from the clamping portion penetrates through the support plates (8) and extends out of the outer cylinder (1), one end of the ejector rod (9) near the clamping portion is of a tip structure, and the ejector rod (9) is in threaded connection with at least one of the support plates (8).
7. An orthopaedic nail-removing device according to claim 6, wherein said ejector pins (9) are provided in 2, 3 or 4, said ejector pins (9) being distributed on the same circumference.
8. The orthopedic nail extractor according to claim 6, characterized in that the inner side wall of the pressing sleeve (5) at one end of the annular cavity (3) is a conical structure, and the interval between the adjacent supporting plates (8) in the pressing sleeve (5) is not less than 5 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110894466.0A CN113520567B (en) | 2021-08-05 | 2021-08-05 | Nail taking device for orthopedics department |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110894466.0A CN113520567B (en) | 2021-08-05 | 2021-08-05 | Nail taking device for orthopedics department |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113520567A CN113520567A (en) | 2021-10-22 |
| CN113520567B true CN113520567B (en) | 2022-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110894466.0A Active CN113520567B (en) | 2021-08-05 | 2021-08-05 | Nail taking device for orthopedics department |
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| CN (1) | CN113520567B (en) |
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| FR2689751A1 (en) * | 1992-04-08 | 1993-10-15 | Medinov Sa | Positioning and impacting assembly for intramedullary nail - comprises nail gripping arm with assembly of slidably-fitting support and securing components aligning nail with guide in medullary canal |
| WO2005055845A1 (en) * | 2003-12-08 | 2005-06-23 | Synthes Gmbh | Surgical mallet |
| CN201239193Y (en) * | 2008-06-26 | 2009-05-20 | 杨兆军 | Device for fetching medical screw |
| CN201701295U (en) * | 2010-05-07 | 2011-01-12 | 刘斌 | Orthopedic screw taking device |
| CN204318895U (en) * | 2014-10-13 | 2015-05-13 | 南阳医学高等专科学校第一附属医院 | A kind of orthopaedics gets nail electric drill |
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| CN206543205U (en) * | 2016-11-22 | 2017-10-10 | 白德磊 | A kind of nail taking out apparatus in orthopaedics |
| CN208525031U (en) * | 2017-07-12 | 2019-02-22 | 王丰岩 | Inverted tension type intramedullary nail device for taking out broken nail |
| CN109793566A (en) * | 2019-01-11 | 2019-05-24 | 温月云 | A kind of device for fetching nail of the anti-return of orthopaedics |
| CN209153954U (en) * | 2018-10-09 | 2019-07-26 | 王海生 | A kind of nail-fetching device for orthopaedics |
| CN209253076U (en) * | 2018-11-28 | 2019-08-16 | 绍兴福清卫生用品有限公司 | A kind of bone screw assembly |
| CN210301189U (en) * | 2019-01-23 | 2020-04-14 | 陈金燕 | Novel nail is got to orthopedics device |
| CN210494213U (en) * | 2019-06-12 | 2020-05-12 | 孙明启 | Efficient nail taking device for orthopedic surgery |
| CN210990681U (en) * | 2019-10-15 | 2020-07-14 | 张伟 | Orthopedics nail taking device |
| CN211704808U (en) * | 2019-11-06 | 2020-10-20 | 古文炎 | Orthopedic splint and orthopedic nail taking device |
| CN212592389U (en) * | 2020-04-16 | 2021-02-26 | 诸暨市人民医院 | Simple orthopedic nail extractor |
| CN113081226A (en) * | 2021-03-01 | 2021-07-09 | 河南科技大学第一附属医院 | Fracture internal fixation nail taking assembly |
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2021
- 2021-08-05 CN CN202110894466.0A patent/CN113520567B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2689751A1 (en) * | 1992-04-08 | 1993-10-15 | Medinov Sa | Positioning and impacting assembly for intramedullary nail - comprises nail gripping arm with assembly of slidably-fitting support and securing components aligning nail with guide in medullary canal |
| WO2005055845A1 (en) * | 2003-12-08 | 2005-06-23 | Synthes Gmbh | Surgical mallet |
| CN201239193Y (en) * | 2008-06-26 | 2009-05-20 | 杨兆军 | Device for fetching medical screw |
| CN201701295U (en) * | 2010-05-07 | 2011-01-12 | 刘斌 | Orthopedic screw taking device |
| CN204318895U (en) * | 2014-10-13 | 2015-05-13 | 南阳医学高等专科学校第一附属医院 | A kind of orthopaedics gets nail electric drill |
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| CN106073886A (en) * | 2016-07-13 | 2016-11-09 | 苏州苏南捷迈得医疗器械有限公司 | A kind of orthopedic broken screw nail-fetching device |
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| CN206543205U (en) * | 2016-11-22 | 2017-10-10 | 白德磊 | A kind of nail taking out apparatus in orthopaedics |
| CN208525031U (en) * | 2017-07-12 | 2019-02-22 | 王丰岩 | Inverted tension type intramedullary nail device for taking out broken nail |
| CN209153954U (en) * | 2018-10-09 | 2019-07-26 | 王海生 | A kind of nail-fetching device for orthopaedics |
| CN209253076U (en) * | 2018-11-28 | 2019-08-16 | 绍兴福清卫生用品有限公司 | A kind of bone screw assembly |
| CN109793566A (en) * | 2019-01-11 | 2019-05-24 | 温月云 | A kind of device for fetching nail of the anti-return of orthopaedics |
| CN210301189U (en) * | 2019-01-23 | 2020-04-14 | 陈金燕 | Novel nail is got to orthopedics device |
| CN210494213U (en) * | 2019-06-12 | 2020-05-12 | 孙明启 | Efficient nail taking device for orthopedic surgery |
| CN210990681U (en) * | 2019-10-15 | 2020-07-14 | 张伟 | Orthopedics nail taking device |
| CN211704808U (en) * | 2019-11-06 | 2020-10-20 | 古文炎 | Orthopedic splint and orthopedic nail taking device |
| CN212592389U (en) * | 2020-04-16 | 2021-02-26 | 诸暨市人民医院 | Simple orthopedic nail extractor |
| CN113081226A (en) * | 2021-03-01 | 2021-07-09 | 河南科技大学第一附属医院 | Fracture internal fixation nail taking assembly |
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| Publication number | Publication date |
|---|---|
| CN113520567A (en) | 2021-10-22 |
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