CN106073886A - A kind of orthopedic broken screw nail-fetching device - Google Patents
A kind of orthopedic broken screw nail-fetching device Download PDFInfo
- Publication number
- CN106073886A CN106073886A CN201610547905.XA CN201610547905A CN106073886A CN 106073886 A CN106073886 A CN 106073886A CN 201610547905 A CN201610547905 A CN 201610547905A CN 106073886 A CN106073886 A CN 106073886A
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- Prior art keywords
- tightly
- nail
- folder
- pawl
- pipe
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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
-
- 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
- A61B2017/564—Methods for bone or joint treatment
-
- 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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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a kind of orthopedic broken screw nail-fetching device, manage including taking nail, hold pipe, dilator tightly, hold folder, arc saw blade, annular pawl, radially pawl tightly；Described take nail pipe in be spirally connected and be provided with dilator, described in take nail pipe outer be spirally connected to be provided with hold pipe tightly；Described take nail pipe upper end is provided with handle, inner side is provided with spacing screw thread, lower end is provided with and multiple holds folder and arc saw blade tightly, and described arc saw blade medial surface is provided with a plurality of annular pawl and radially pawl, described in hold tightly and inside folder, be provided with folder convex joint；Described dilator upper end is provided with handle, lower end is provided with the expanding bar with expansion ball-joint；Multiple hold tightly folder front end arc saw blades arranged by inner side annular pawl, radially pawl clamp and fix broken nail；The present invention coordinates with annular pawl, radially pawl by holding the arc saw blade of folder front end tightly, effectively fixes broken nail end by annular pawl, radially pawl, takes out broken nail quickly and easily, prevent broken nail chute, improves procedure efficiency.
Description
Technical field
The present invention relates to a kind of orthopaedics fixture technology apparatus field, particularly to a kind of orthopedic broken screw nail-fetching device.
Background technology
In bone surgery, screw is fixing in combining steel plate and hollow nail is conventional method, especially half-thread pine
Matter bone screw and half-thread hollow nail are more widely applied, and their advantage is to meet biomechanical principle, make fracture site reach
To effective pressurization, steady statue can be reached after fracture fixation and meet the intensity of rehabilitation training, in conjunction with early functional exercise,
To promote union of fracture.First, needing to take out screw after patient's recovery from illness, common spiral shell is criticized the structural limitations of instrument, can only be made sky
Heart nail rotates, and gerontal patient's bone density is relatively low, is difficult on sclerotin form screw thread, and causing nail to fracture can not take out；Secondly,
Part nail is tightly combined with sclerotin, it is easy to cause nail to fracture damage；Again, use locking pliers extractor to bone destruction
Property relatively big, cause unnecessary misery to patient.
In prior art, broken nail nail-fetching device usually occurs that broken nail cannot be fixed, broken nail skids, cannot rotate, this situation
After causing some patients union of fracture, broken nail can not take out, and can only remain in internal, causes patient body and psychological puzzlement.
Summary of the invention
For solving above-mentioned technical problem, the invention provides a kind of orthopedic broken screw nail-fetching device, for of the prior art not
Foot, optimizes design, uses arc saw blade to coordinate with annular pawl, radially pawl, saves by holding pipe compression clamp evagination tightly, thus logical
Cross annular pawl, radially pawl and effectively fix broken nail end, take out screw quickly and easily, prevent broken nail chute, can extensively answer
For clinic, alleviate patient suffering, improve procedure efficiency.
For reaching above-mentioned purpose, technical scheme is as follows: a kind of orthopedic broken screw nail-fetching device, including taking nail pipe, embracing
Tight pipe, dilator, handle, hold folder tightly, arc saw blade, folder convex save, press from both sides evagination joint, anti-slip handle, fastening screw thread, the inner cone mouth of pipe,
Handle, clamping joint, expanding bar, expansion ball-joint, spacing screw thread, annular pawl, radially pawl, it is characterised in that:
Described take nail pipe in be spirally connected by spacing screw thread and to be provided with dilator, described in take and set by fastening screw thread outside nail pipe
It is equipped with and holds pipe tightly；Described take nail pipe upper end outside be provided with handle, inner side is provided with spacing screw thread, described in take nail pipe lower circumferential
Be provided with to integral type and multiple hold folder tightly, described in hold tightly to be provided with between folder and hold clip slot tightly, described in hold folder lower end integral type tightly and set
It is equipped with arc saw blade, is circumferentially provided with a plurality of annular pawl inside described arc saw blade on arcwall face, along up and down
Be radially arranged a plurality of radial direction pawl, described in hold tightly folder medial surface on be provided with cross section be semicircular folder convex joint；Described expansion
Prop upper end is provided with handle, lower end is provided with buckling groove, and described expanding bar upper end is provided with clamping joint, lower end is provided with expansion
Ball-joint；Described buckling groove mutually connects and fixes with clamping joint；Described dilator moves expansion ball-joint, described expansion by spacing screw thread
Opening ball-joint slip and push folder convex joint open, and drive is held tightly to press from both sides and expanded laterally, multiple arc saw blades pressing from both sides front end of holding tightly are by interior
The annular pawl of side setting, radially pawl clamp and fix broken nail.
The direction of described annular pawl is for setting up, and the direction of described radial direction pawl is contrary with the hand of spiral of broken nail to be set
Put；Described annular pawl, radially pawl are mutually twisted locking with broken nail external screw thread.
Described hold tightly be provided with anti-slip handle outside pipe upper end, inner side is provided with fastening screw thread, lower end and is provided with the inner cone mouth of pipe,
Described pipe of holding tightly is moved up and down by fastening screw thread, and the folder evagination of arc saw blade is saved and holds tightly and fixing lock by the described inner cone mouth of pipe
Only.
Described sandwiched of holding tightly is equipped with three or four, and the quantity of described arc saw blade and the quantity Matching holding folder tightly set
Putting, the base of described arc saw blade is provided with arcuate serrated.
The operation principle of the present invention is: take nail pipe, hold tightly pipe and dilator be combined with each other, use three groups hold tightly folder and arc
Saw blade coordinates, and uses arc saw blade to coordinate with annular pawl, radially pawl, saves by holding pipe compression clamp evagination tightly, thus pass through
Annular pawl, radially pawl effectively fix broken nail end, are interacted with folder convex joint by expansion ball-joint, expand holding folder tightly
, in order to open arc saw blade and clamp broken nail smoothly；By arranging on arc saw blade medial surface and annular pawl, radially pawl
Fixing broken nail, the rotation of rotation grip handle is held pipe tightly and is compressed arc saw blade from outside, and the inner cone mouth of pipe holding pipe tightly moves down, and holds tightly under pipe
The inner cone mouth of pipe inner tubal wall in portion inwardly holds arc saw blade tightly broken nail, is rotated further and holds pipe tightly, can be by annular pawl, radially
Pawl locking broken nail, and take out broken nail smoothly；It is simple and easy to do that the present invention makes to take broken nail process, does not haves broken nail chute, can be complete
The taking-up requirement of full up foot all kinds of nail broken nail.
By technique scheme, technical solution of the present invention provides the benefit that: optimize design, take nail pipe, hold tightly pipe and
Dilator be combined with each other, and uses three groups to hold folder tightly and arc saw blade coordinates, and uses arc saw blade to join with annular pawl, radially pawl
Close, save by holding pipe compression clamp evagination tightly, thus effectively fix broken nail end by annular pawl, radially pawl, quick and convenient
Ground takes out screw, prevents broken nail chute, can be widely used in clinic, alleviates patient suffering, improves procedure efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be in embodiment or description of the prior art
The required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only some realities of the present invention
Execute example, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to these accompanying drawings
Obtain other accompanying drawing.
Fig. 1 is a kind of orthopedic broken screw nail-fetching device sectional view schematic diagram disclosed in the embodiment of the present invention.
Numeral and the corresponding component title represented by letter in figure:
1. take nail pipe 2. and hold pipe 3. dilator 4. handle tightly
5. hold folder 6. arc saw blades 7. tightly and press from both sides convex joint 8. folder evagination joint
9. anti-slip handle 10. fastens the screw thread 11. inner cone mouth of pipe 12. handle
The spacing screw thread of ball-joint 16. is expanded in 13. clamping joint 14. expanding bars 15.
17. annular pawl 18. radially pawls
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
According to Fig. 1, the invention provides a kind of orthopedic broken screw nail-fetching device, including take nail pipe 1, hold tightly pipe 2, dilator 3,
Hands 4, hold tightly folder 5, arc saw blade 6, folder convex joint 7, folder evagination joint 8, anti-slip handle 9, fastening screw thread 10, the inner cone mouth of pipe 11, handle
12, clamping joint 13, expanding bar 14, expansion ball-joint 15, spacing screw thread 16, annular pawl 17, radially pawl 18.
Described take to be spirally connected by spacing screw thread 16 in nail pipe 1 be provided with dilator 3, described in take nail pipe 1 outside by fastening
Screw thread 10 is provided with holds pipe 2 tightly；Described take nail pipe 1 upper end outside be provided with handle 4, inner side is provided with spacing screw thread 16, described
Take nail pipe 1 lower circumferential to be provided with to integral type and multiple hold folder 5 tightly, described in hold tightly to be provided with between folder 5 and hold clip slot tightly, described armful
Grip 5 lower end integral types and be provided with arc saw blade 6, be circumferentially provided with many inside described arc saw blade 6 on arcwall face
Bar annular pawl 17, along being radially arranged a plurality of radial direction pawl 18 up and down, described in hold tightly and be provided with cross section and be on folder 5 medial surface
Semicircular folder convex joint 7；Described dilator 3 upper end is provided with handle 12, lower end is provided with buckling groove, in described expanding bar 14
End is provided with clamping joint 13, lower end is provided with expansion ball-joint 15；Described buckling groove mutually connects and fixes with clamping joint 13；Described expansion
Prop 3 passes through spacing screw thread 16 and moves expansion ball-joint 15, and described expansion ball-joint 15 slides and pushes folder convex joint 7 open, and drive is held tightly
Folder 5 is expanded laterally, and annular pawl 17 that multiple arc saw blades 6 holding folder 5 front ends tightly are arranged by inner side, radially pawl 18 press from both sides
Hold and fix broken nail.
Described annular pawl 17 direction for setting up, the direction of described radial direction pawl 18 and the hand of spiral phase of broken nail
Anti-setting；Described annular pawl 17, radially pawl 18 and broken nail external screw thread are mutually twisted locking.
Described hold tightly be provided with anti-slip handle 9 outside pipe 2 upper end, inner side is provided with fastening screw thread 10, lower end and is provided with inner cone
The mouth of pipe 11, described in hold pipe 2 tightly and moved up and down by fastening screw thread 10, the folder evagination of arc saw blade 6 is saved 8 by the described inner cone mouth of pipe 11
Hold tightly and fix locking.
Described folder 5 of holding tightly is provided with three, and the quantity of described arc saw blade 6 and the quantity Matching holding folder 5 tightly are arranged, described
The base of arc saw blade 6 is provided with arcuate serrated.
The operating procedure that is embodied as of the present invention is: takes nail pipe 1, hold pipe 2 tightly and dilator 3 be combined with each other, uses three groups
Hold folder 5 tightly and arc saw blade 6 coordinates, use arc saw blade 6 to coordinate with annular pawl 17, radially pawl 18, press by holding pipe 2 tightly
Compel folder evagination joint 8, thus effectively fix broken nail end by annular pawl 17, radially pawl 18, by expansion ball-joint 15 and folder
Convex joint 7 interaction, to holding folder 5 expansion tightly, in order to open arc saw blade 6 and clamp broken nail smoothly；By in arc saw blade 6
Arranging on side and annular pawl 17, radially pawl 18 fix broken nail, rotation grip handle 9 rotates holds pipe 2 tightly from outside compression arc
Shape saw blade 6, the inner cone mouth of pipe 11 holding pipe 2 tightly moves down, and holds the inner cone mouth of pipe 11 inner tubal wall of pipe 2 bottom tightly by inside for arc saw blade 6
Hold broken nail tightly, be rotated further and hold pipe 2 tightly, broken nail can be locked by annular pawl 17, radially pawl 18, and take out disconnected smoothly
Nail；It is simple and easy to do that the present invention makes to take broken nail process, does not haves broken nail chute, and the taking-up that can fully meet all kinds of nail broken nail is wanted
Ask.
By above-mentioned specific embodiment, the invention has the beneficial effects as follows: optimize design, take nail pipe, hold pipe and dilator tightly
It is combined with each other, use three groups to hold folder tightly and arc saw blade coordinates, use arc saw blade to coordinate with annular pawl, radially pawl, logical
Cross and hold pipe compression clamp evagination joint tightly, thus effectively fix broken nail end by annular pawl, radially pawl, take out quickly and easily
Screw, prevents broken nail chute, can be widely used in clinic, alleviates patient suffering, improves procedure efficiency.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple amendment to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty phase one
The widest scope caused.
Claims (4)
1. an orthopedic broken screw nail-fetching device, it is characterised in that include that taking nail manages, holds pipe, dilator, handle tightly, holds folder, arc tightly
Saw blade, folder convex joint, folder evagination joint, anti-slip handle, fastening screw thread, the inner cone mouth of pipe, handle, clamping joint, expanding bar, expansion ball-joint,
Spacing screw thread, annular pawl, radially pawl；Described take nail pipe in be spirally connected by spacing screw thread and to be provided with dilator, described in take nail
It is provided with by fastening screw thread outside pipe and holds pipe tightly；Described take nail pipe upper end outside be provided with handle, inner side is provided with spacing spiral shell
Stricture of vagina, described in take nail pipe lower circumferential and be provided with to integral type and multiple hold folder tightly, described in hold tightly to be provided with between folder and hold clip slot tightly, institute
State and hold folder lower end integral type tightly and be provided with arc saw blade, be circumferentially provided with many inside described arc saw blade on arcwall face
Bar annular pawl, along being radially arranged a plurality of radial direction pawl up and down, described in hold on folder medial surface that to be provided with cross section be semicircle tightly
The folder convex joint of shape；Described dilator upper end is provided with handle, lower end is provided with buckling groove, and described expanding bar upper end is provided with card
Joint, lower end are provided with expansion ball-joint；Described buckling groove mutually connects and fixes with clamping joint；Described dilator passes through spacing screw thread
Mobile expansion ball-joint, described expansion ball-joint slides and pushes folder convex joint open, and drives and hold folder tightly and expand laterally, multiple hold folder tightly before
End arc saw blade arranged by inner side annular pawl, radially pawl clamp and fix broken nail.
A kind of orthopedic broken screw nail-fetching device the most according to claim 1, it is characterised in that the direction of described annular pawl be to
Upper setting, the described direction of radial direction pawl is reversed with the hand of spiral of broken nail；Described annular pawl, radially pawl and broken nail
External screw thread is mutually twisted locking.
A kind of orthopedic broken screw nail-fetching device the most according to claim 1, it is characterised in that described in hold tightly and arrange outside pipe upper end
Have anti-slip handle, inner side to be provided with fastening screw thread, lower end and be provided with the inner cone mouth of pipe, described in hold pipe tightly by moving down on fastening screw thread
Dynamic, the folder evagination of arc saw blade is saved and holds tightly and fix locking by the described inner cone mouth of pipe.
A kind of orthopedic broken screw nail-fetching device the most according to claim 1, it is characterised in that described in hold tightly sandwiched be equipped with three or
Person four, the quantity of described arc saw blade and hold tightly folder quantity Matching arrange, the base of described arc saw blade is provided with arc
Sawtooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610547905.XA CN106073886B (en) | 2016-07-13 | 2016-07-13 | A kind of orthopedic broken screw nail-fetching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610547905.XA CN106073886B (en) | 2016-07-13 | 2016-07-13 | A kind of orthopedic broken screw nail-fetching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106073886A true CN106073886A (en) | 2016-11-09 |
| CN106073886B CN106073886B (en) | 2019-09-27 |
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|---|---|---|---|
| CN201610547905.XA Active CN106073886B (en) | 2016-07-13 | 2016-07-13 | A kind of orthopedic broken screw nail-fetching device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107374718A (en) * | 2017-08-17 | 2017-11-24 | 温州市人民医院 | A kind of screw broken nail device for fetching 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 |
| CN109984832A (en) * | 2018-12-28 | 2019-07-09 | 丽水市人民医院 | A kind of hollow nail and nail-fetching device matched with its |
| CN111035446A (en) * | 2019-12-26 | 2020-04-21 | 东阳市人民医院 | Orthopedics nail extractor convenient to take out disconnected nail |
| CN111317556A (en) * | 2020-03-12 | 2020-06-23 | 施田宝 | Nail taking device for orthopedics department |
| CN113520567A (en) * | 2021-08-05 | 2021-10-22 | 河南科技大学第一附属医院 | Nail taking device for orthopedics department |
| CN114376705A (en) * | 2020-10-19 | 2022-04-22 | 江苏国立医疗器械有限公司 | Intramedullary nail extractor |
| CN117179878A (en) * | 2023-11-06 | 2023-12-08 | 南方医科大学南方医院 | Orthopedics nail taking device |
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| WO1994012112A1 (en) * | 1992-11-21 | 1994-06-09 | Erwin Ludwig Klinge | Expanding intramedullary nail |
| DE20316629U1 (en) * | 2002-11-30 | 2004-01-22 | Ferber, Ottfried, Dr. | Surgical slide hammer for removing medullary nails has exchangeable expansion tips with different surfaces to engage ends of nails |
| CN202207202U (en) * | 2011-09-14 | 2012-05-02 | 朱春景 | Vertebral arch broken nail puller |
| CN203861338U (en) * | 2014-05-30 | 2014-10-08 | 张庆文 | Vertebral pedicle broken nail extractor |
| CN204723168U (en) * | 2015-03-23 | 2015-10-28 | 延安大学附属医院 | A kind of nail taking out apparatus in orthopaedics |
| CN205073016U (en) * | 2015-09-26 | 2016-03-09 | 无锡市人民医院 | Broken nail extraction apparatus |
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Patent Citations (6)
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| WO1994012112A1 (en) * | 1992-11-21 | 1994-06-09 | Erwin Ludwig Klinge | Expanding intramedullary nail |
| DE20316629U1 (en) * | 2002-11-30 | 2004-01-22 | Ferber, Ottfried, Dr. | Surgical slide hammer for removing medullary nails has exchangeable expansion tips with different surfaces to engage ends of nails |
| CN202207202U (en) * | 2011-09-14 | 2012-05-02 | 朱春景 | Vertebral arch broken nail puller |
| CN203861338U (en) * | 2014-05-30 | 2014-10-08 | 张庆文 | Vertebral pedicle broken nail extractor |
| CN204723168U (en) * | 2015-03-23 | 2015-10-28 | 延安大学附属医院 | A kind of nail taking out apparatus in orthopaedics |
| CN205073016U (en) * | 2015-09-26 | 2016-03-09 | 无锡市人民医院 | Broken nail extraction apparatus |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107374718A (en) * | 2017-08-17 | 2017-11-24 | 温州市人民医院 | A kind of screw broken nail device for fetching nail |
| CN109984832A (en) * | 2018-12-28 | 2019-07-09 | 丽水市人民医院 | A kind of hollow nail and nail-fetching device matched with its |
| CN109984832B (en) * | 2018-12-28 | 2022-04-15 | 丽水市人民医院 | Hollow nail and matched nail extractor thereof |
| CN109793566A (en) * | 2019-01-11 | 2019-05-24 | 温月云 | A kind of device for fetching nail of the anti-return of orthopaedics |
| CN111035446A (en) * | 2019-12-26 | 2020-04-21 | 东阳市人民医院 | Orthopedics nail extractor convenient to take out disconnected nail |
| CN111317556A (en) * | 2020-03-12 | 2020-06-23 | 施田宝 | Nail taking device for orthopedics department |
| CN111317556B (en) * | 2020-03-12 | 2021-03-26 | 施田宝 | Nail taking device for orthopedics department |
| CN114376705A (en) * | 2020-10-19 | 2022-04-22 | 江苏国立医疗器械有限公司 | Intramedullary nail extractor |
| CN113520567A (en) * | 2021-08-05 | 2021-10-22 | 河南科技大学第一附属医院 | Nail taking device for orthopedics department |
| CN113520567B (en) * | 2021-08-05 | 2022-06-03 | 河南科技大学第一附属医院 | Nail taking device for orthopedics department |
| CN117179878A (en) * | 2023-11-06 | 2023-12-08 | 南方医科大学南方医院 | Orthopedics nail taking device |
| CN117179878B (en) * | 2023-11-06 | 2024-01-05 | 南方医科大学南方医院 | Orthopedics nail taking device |
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|---|---|
| CN106073886B (en) | 2019-09-27 |
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