CN106073886B - A kind of orthopedic broken screw nail-fetching device - Google Patents
A kind of orthopedic broken screw nail-fetching device Download PDFInfo
- Publication number
- CN106073886B CN106073886B CN201610547905.XA CN201610547905A CN106073886B CN 106073886 B CN106073886 B CN 106073886B CN 201610547905 A CN201610547905 A CN 201610547905A CN 106073886 B CN106073886 B CN 106073886B
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- China
- Prior art keywords
- nail
- pawl
- folder
- holding
- pipe
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Classifications
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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
Abstract
The invention discloses a kind of orthopedic broken screw nail-fetching devices, including take nail pipe, hold pipe, expander tightly, hold folder, arc saw blade, annular pawl, radial pawl tightly；Described take in nail pipe is spirally connected equipped with expander, it is described take nail pipe it is outer be spirally connected to be equipped with hold pipe tightly；Described that nail pipe upper end is taken to be equipped with handle, inside equipped with limit screw thread, lower end equipped with multiple holdings folder and arc saw blade, the arc saw blade medial surface is equipped with a plurality of annular pawl and radial direction pawl, and holding folder inside is equipped with folder convex section；The expander upper end is equipped with handle, lower end is equipped with the expanding bar with expansion ball-joint；Multiple holdings press from both sides annular pawl, the radial pawl that the arc saw blades of front end are arranged by inside and clamp and fix broken nail；The present invention is cooperated by holding the arc saw blade of folder front end tightly with annular pawl, radial pawl, by annular pawl, the effectively fixed broken nail end of radial pawl, is quickly and easily taken out broken nail, is prevented broken nail sliding slot, improve procedure efficiency.
Description
Technical field
The present invention relates to a kind of orthopaedics fixture technology apparatus field, in particular to a kind of orthopedic broken screw nail-fetching device.
Background technique
In bone surgery, fixation is common method in screw combination steel plate and hollow nail, especially half-thread pine
Matter bone screws and half-thread hollow nail are more widely applied, they the advantages of be to meet biomechanical principle, reach fracture site
To effective pressurization, stable state can be reached after fracture fixation and meet the intensity of rehabilitation training, in conjunction with early functional exercise,
To promote union.Firstly, needing to take out screw after patient's recovery from illness, the structural limitations of common spiral shell batch tool can only make sky
Heart nail rotation, gerontal patient's bone density is lower, is difficult to form screw thread on sclerotin, and causing bone nail to fracture cannot take out；Secondly,
Part bone nail is tightly combined with sclerotin, it is easy to bone nail be caused to fracture damage；Again, using locking pliers extractor to destruction of bone
Property is larger, causes unnecessary pain to patient.
In the prior art, broken nail, which usually occurs, in broken nail nail-fetching device can not fix, broken nail skidding, can not rotate, such case
Cause broken nail after some patientss union that cannot take out, can only retain in vivo, causes patient body and psychological puzzlement.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of orthopedic broken screw nail-fetching device, for it is in the prior art not
Foot, optimization design are cooperated using arc saw blade and annular pawl, radial pawl, by holding pipe compression clamp evagination section tightly, thus logical
The effectively fixed broken nail end of annular pawl, radial pawl is crossed, screw is quickly and easily taken out, prevents broken nail sliding slot, can answer extensively
For clinic, mitigate patient suffering, improves procedure efficiency.
In order to achieve the above objectives, technical scheme is as follows: a kind of orthopedic broken screw nail-fetching device, including takes nail pipe, embraces
Tight pipe, expander, handle, hold tightly folder, arc saw blade, press from both sides convex section, press from both sides evagination section, anti-slip handle, fastening thread, inner cone nozzle,
Handle, clamping joint, expanding bar, expansion ball-joint, limit screw thread, annular pawl, radial pawl, it is characterised in that:
Described that interior be spirally connected by limit screw thread of nail pipe is taken to be provided with expander, described take is set outside nail pipe by fastening thread
It is equipped with holding pipe；It is described take nail pipe upper end on the outside of be provided with handle, inside is provided with limit screw thread, it is described take nail pipe lower circumferential
Integral type is provided with multiple holding folders, holding clip slot is provided between the holding folder, the holding folder lower end integral type is set
It is equipped with arc saw blade, a plurality of annular pawl is circumferentially provided on the arcwall face of the arc saw blade inside, along upper and lower
It is arranged radially a plurality of radial pawl, being provided with section on the holding folder medial surface is semicircular folder convex section；The expansion
Prop upper end is provided with handle, lower end is provided with clamping groove, and the expanding bar upper end is provided with clamping joint, lower end is provided with expansion
Ball-joint；The clamping groove is mutually connected and fixed with clamping joint；The expander passes through the mobile expansion ball-joint of limit screw thread, the expansion
It opens ball-joint sliding and pushes folder convex section open, and holding folder is driven to expand outward, the arc saw blades of multiple holding folders front end pass through interior
The annular pawl of side setting, radial pawl clamp and fix broken nail.
The direction of the annular pawl is to set up, and the direction of the radial direction pawl is opposite with the hand of spiral of broken nail to be set
It sets；The annular pawl, radial pawl and broken nail external screw thread are mutually twisted locking.
The holding pipe upper end outside is provided with anti-slip handle, inside is provided with fastening thread, lower end is provided with inner cone nozzle,
The holding pipe is moved down by fastening thread, and the inner cone nozzle is held tightly to the folder evagination section of arc saw blade and fixing lock
Only.
The holding sandwiched set there are three or four, the quantity of the arc saw blade and hold the quantity Matching pressed from both sides tightly and set
It sets, the bottom edge of the arc saw blade is provided with arcuate serrated.
The operation principle of the present invention is that: take nail pipe, holding pipe and expander to be combined with each other, using three groups of holdings folders and arc
Saw blade cooperation is cooperated using arc saw blade and annular pawl, radial pawl, by holding pipe compression clamp evagination section tightly, to pass through
The effectively fixed broken nail end of annular pawl, radial pawl is expanded by expansion ball-joint and folder convex section interaction folder is held tightly
, broken nail is smoothly clamped in order to open arc saw blade；By being arranged on arc saw blade medial surface and annular pawl, radial pawl
Fixed broken nail, the rotation of rotation grip handle hold pipe tightly and compress arc saw blade from outside, and the inner cone nozzle for holding pipe tightly moves down, and holds tightly under pipe
The inner cone nozzle inner tubal wall in portion inwardly holds arc saw blade tightly broken nail, continues to rotate holding pipe, can pass through annular pawl, radial direction
Pawl locks broken nail, and smoothly takes out broken nail；The present invention makes to take broken nail process simple and easy to do, is not in broken nail sliding slot, can be complete
The taking-up requirement of full up all kinds of bone nail broken nails of foot.
Through the above technical solutions, the beneficial effect of technical solution of the present invention is: optimization design, take nail pipe, hold tightly pipe and
Expander be combined with each other, and is cooperated using three groups of holding folders and arc saw blade, is matched using arc saw blade and annular pawl, radial pawl
It closes, by holding pipe compression clamp evagination section tightly, thus by annular pawl, the effectively fixed broken nail end of radial pawl, it is quick and convenient
Ground takes out screw, prevents broken nail sliding slot, can be widely used in clinic, mitigates patient suffering, improves procedure efficiency.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be in embodiment or description of the prior art
Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the invention
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of orthopedic broken screw nail-fetching device cross-sectional view schematic diagram disclosed in the embodiment of the present invention.
Number and corresponding component title represented by letter in figure:
1. nail pipe 2. is taken to hold 3. expander of pipe, 4. handle tightly
5. holding folder 6. arc saw blades 7. folder convex section 8. tightly presss from both sides evagination section
9. 10. fastening thread of anti-slip handle, 11. inner cone nozzle, 12. handle
13. ball-joint 16. is expanded in 14. expanding bar 15. of clamping joint limits screw thread
17. the radial pawl of annular pawl 18.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
According to Fig. 1, the present invention provides a kind of orthopedic broken screw nail-fetching devices, including take nail pipe 1, hold tightly pipe 2, expander 3,
Hand 4 holds folder 5, arc saw blade 6, folder convex section 7, folder evagination section 8, anti-slip handle 9, fastening thread 10, inner cone nozzle 11, handle tightly
12, clamping joint 13, expanding bar 14, expansion ball-joint 15, limit screw thread 16, annular pawl 17, radial pawl 18.
Described that interior be spirally connected by limit screw thread 16 of nail pipe 1 is taken to be provided with expander 3, described take passes through fastening outside nail pipe 1
Screw thread 10, which is provided with, holds pipe 2 tightly；It is described take nail 1 upper end of pipe on the outside of be provided with handle 4, inside be provided with limit screw thread 16, it is described
Take nail 1 lower circumferential of pipe that integral type is provided with multiple holding folders 5, the holding presss from both sides and is provided with holding clip slot between 5, and described armful
It grips 5 lower end integral types and is provided with arc saw blade 6, be circumferentially provided on the 6 inside arcwall face of arc saw blade more
Item annular pawl 17 is provided with a plurality of radial pawl 18 along upper and lower radial, and being provided with section on 5 medial surfaces of the holding folder is
Semicircular folder convex section 7；3 upper end of expander is provided with handle 12, lower end is provided with clamping groove, in the expanding bar 14
End is provided with clamping joint 13, lower end is provided with expansion ball-joint 15；The clamping groove is mutually connected and fixed with clamping joint 13；The expansion
For prop 3 by the mobile expansion ball-joint 15 of limit screw thread 16, folder convex section 7 is pushed in the sliding of expansion ball-joint 15 open, and drives holding
Folder 5 is expanded outward, multiple to hold the annular pawl 17 for pressing from both sides the arc saw blades 6 of 5 front ends and being arranged by inside, the radial folder of pawl 18 tightly
It holds and fixes broken nail.
The direction of the annular pawl 17 is to set up, the direction of the radial direction pawl 18 and the hand of spiral phase of broken nail
Anti- setting；The annular pawl 17, radial pawl 18 are mutually twisted locking with broken nail external screw thread.
Anti-slip handle 9 is provided on the outside of 2 upper end of holding pipe, inside is provided with fastening thread 10, lower end is provided with inner cone
Nozzle 11, the holding pipe 2 are moved down by fastening thread 10, folder evagination section 8 of the inner cone nozzle 11 to arc saw blade 6
It holds tightly and fixes locking.
There are three 5 settings of holding folder, and the quantity of the arc saw blade 6 and the quantity Matching for holding folder 5 tightly are arranged, described
The bottom edge of arc saw blade 6 is provided with arcuate serrated.
Specific implementation operating procedure of the invention is: taking nail pipe 1, holding pipe 2 and expander 3 to be combined with each other, using three groups
It holds folder 5 tightly and arc saw blade 6 cooperates, cooperated using arc saw blade 6 and annular pawl 17, radial pawl 18, pressed by holding pipe 2 tightly
Compel folder evagination section 8, to pass through expansion ball-joint 15 and folder by annular pawl 17, the effectively fixed broken nail end of radial pawl 18
Convex section 7 interacts, to 5 expansion of folder is held tightly, in order to open the smoothly clamping broken nail of arc saw blade 6；By in arc saw blade 6
Setting and annular pawl 17, the fixed broken nail of radial pawl 18, the rotation of rotation grip handle 9 hold pipe 2 tightly and compress arc from outside on side
Shape saw blade 6, the inner cone nozzle 11 for holding pipe 2 tightly move down, and 11 inner tubal wall of inner cone nozzle for holding 2 lower part of pipe tightly is inside by arc saw blade 6
It holds broken nail tightly, continues to rotate and hold pipe 2 tightly, broken nail can be locked by annular pawl 17, radial pawl 18, and smoothly take out disconnected
Nail；The present invention makes to take broken nail process simple and easy to do, is not in broken nail sliding slot, and the taking-up that can fully meet all kinds of bone nail broken nails is wanted
It asks.
By above-mentioned specific embodiment, the beneficial effects of the present invention are: optimization design, takes nail pipe, holds pipe and expander tightly
It is combined with each other, is cooperated using three groups of holding folders and arc saw blade, cooperated using arc saw blade and annular pawl, radial pawl, led to
Holding pipe compression clamp evagination section is crossed, to quickly and easily take out by annular pawl, the effectively fixed broken nail end of radial pawl
Screw prevents broken nail sliding slot, can be widely used in clinic, mitigates patient suffering, improves procedure efficiency.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (4)
1. a kind of orthopedic broken screw nail-fetching device, which is characterized in that including taking nail pipe, holding pipe, expander, handle, holding folder, arc tightly
Saw blade, folder convex section, folder evagination section, anti-slip handle, fastening thread, inner cone nozzle, handle, clamping joint, expanding bar, expansion ball-joint,
Limit screw thread, annular pawl, radial pawl；It is described that interior be spirally connected by limit screw thread of nail pipe is taken to be provided with expander, it is described to take nail
Holding pipe is provided with by fastening thread outside pipe；It is described take nail pipe upper end on the outside of be provided with handle, inside is provided with limit spiral shell
Line, it is described to take nail pipe lower circumferential that integral type is provided with multiple holding folders, holding clip slot, institute are provided between the holding folder
It states holding folder lower end integral type and is provided with arc saw blade, be circumferentially provided on the arcwall face of the arc saw blade inside more
Item annular pawl is provided with a plurality of radial pawl along upper and lower radial, and being provided with section on the holding folder medial surface is semicircle
The folder convex section of shape；The expander upper end is provided with handle, lower end is provided with clamping groove, and the expanding bar upper end is provided with card
Connector, lower end are provided with expansion ball-joint；The clamping groove is mutually connected and fixed with clamping joint；The expander passes through limit screw thread
Mobile expansion ball-joint, folder convex section is pushed in the expansion ball-joint sliding open, and holding folder is driven to expand outward, before multiple holding folders
Annular pawl that the arc saw blade at end is arranged by inside, radial pawl clamp and fix broken nail.
2. a kind of orthopedic broken screw nail-fetching device according to claim 1, which is characterized in that it is described annular pawl direction be to
Upper setting, the direction of the radial direction pawl and the hand of spiral of broken nail are reversed；The annular pawl, radial pawl and broken nail
External screw thread is mutually twisted locking.
3. a kind of orthopedic broken screw nail-fetching device according to claim 1, which is characterized in that setting on the outside of the holding pipe upper end
There is anti-slip handle, inside to be provided with fastening thread, lower end is provided with inner cone nozzle, holding pipe is by fastening thread to moving down
Dynamic, the inner cone nozzle holds the folder evagination section of arc saw blade tightly and fixes locking.
4. a kind of orthopedic broken screw nail-fetching device according to claim 1, which is characterized in that the holding sandwiched set there are three or
Person four, the quantity of the arc saw blade and the quantity Matching for holding folder tightly are arranged, and the bottom edge of the 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 CN106073886A (en) | 2016-11-09 |
| CN106073886B true CN106073886B (en) | 2019-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610547905.XA Active CN106073886B (en) | 2016-07-13 | 2016-07-13 | A kind of orthopedic broken screw nail-fetching device |
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| CN (1) | CN106073886B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107374718B (en) * | 2017-08-17 | 2019-12-20 | 温州市人民医院 | Broken screw taking device |
| CN109984832B (en) * | 2018-12-28 | 2022-04-15 | 丽水市人民医院 | Hollow nail and matched nail extractor thereof |
| CN109793566B (en) * | 2019-01-11 | 2020-08-25 | 温月云 | Orthopedic nail taking device capable of preventing back movement |
| CN111035446B (en) * | 2019-12-26 | 2021-06-08 | 东阳市人民医院 | Orthopedics nail extractor convenient to take out disconnected nail |
| 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 |
| 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 |
| CN117179878B (en) * | 2023-11-06 | 2024-01-05 | 南方医科大学南方医院 | Orthopedics nail taking device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2016
- 2016-07-13 CN CN201610547905.XA patent/CN106073886B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| Publication number | Publication date |
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| CN106073886A (en) | 2016-11-09 |
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