CN106175916B - A kind of bone surgery nail-fetching device - Google Patents
A kind of bone surgery nail-fetching device Download PDFInfo
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- CN106175916B CN106175916B CN201610547722.8A CN201610547722A CN106175916B CN 106175916 B CN106175916 B CN 106175916B CN 201610547722 A CN201610547722 A CN 201610547722A CN 106175916 B CN106175916 B CN 106175916B
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- 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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- 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 bone surgery nail-fetching devices, including take nail pipe, hold pipe, expander tightly, hold folder, conical tooth, the convex section of toothholder, arc clamping head, batch bar, expansion ball-joint tightly；Described take in nail pipe is spirally connected by limiting screw thread and is provided with expander, it is described take to be provided with to hold tightly by fastening thread outside nail pipe manage；Described take is equipped with limit screw thread equipped with handle, inside on the outside of nail pipe upper end, and described to take nail pipe lower end to be equipped with multiple holdings folder and hold clip slot tightly, holding folder lower end is equipped with arc clamping head and conical tooth, is equipped with the convex section of toothholder on the inside of the holding folder；The expander lower end is equipped with batch bar, middle part is equipped with expansion ball-joint；The expander pushes the convex section of toothholder open by the mobile expansion ball-joint of limit screw thread, the expansion ball-joint, and drives holding folder expansion, multiple arcs grips fixing bone pin cap；The present invention quickly and easily takes out screw, prevents screw sliding slot, mitigate patient suffering, improve procedure efficiency by arc clamping head and the fixed head of a nail of conical tooth.
Description
Technical field
The present invention relates to a kind of orthopaedics fixture technology apparatus field, in particular to a kind of bone surgery 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, causes bone nail cannot be from taking-up；Secondly, portion
Bone nail is divided to be tightly combined with sclerotin, it is easy to bone nail cap be caused to damage；Again, using locking pliers extractor to destruction of bone compared with
Greatly, unnecessary pain is caused to patient.
In the prior art, extractor for bone-pin usually occurs that screw tail cap stress is excessive to lead to that sliding slot damages or screw is anti-
To when rotation, after turning to certain position, cannot continue to back-out outward, it can only original place idle running, especially half-thread spongiosa murices
Nail and this phenomenon of half-thread hollow nail are more obvious；Such case cannot even take out bone after leading to some patientss union
Nail, can only retain in vivo, cause patient body and psychological puzzlement.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of bone surgery nail-fetching device, for it is in the prior art not
Foot, optimization design, using arc clamping head and spiral shell batch cooperation, by the head of a nail of the conical tooth fixing bone pin in arc clamping head, quickly
It is easily removed screw, prevents screw sliding slot, it, can be wide especially suitable for taking out half-thread cancellous bone screw and half-thread hollow nail
It is general to be applied to clinic, mitigate patient suffering, improves procedure efficiency.
In order to achieve the above objectives, technical scheme is as follows: a kind of bone surgery nail-fetching device, including takes nail pipe, embraces
Tight pipe, handle, holds folder, conical tooth, the convex section of toothholder, arc clamping head, anti-slip handle, fastening thread, inner cone nozzle, hand tightly at expander
Handle, clamping joint, batch bar, expansion ball-joint, limit screw thread, 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 arranged outside nail pipe by fastening thread
There is holding to manage；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 to
Integral type is provided with multiple holding folders, and holding clip slot, the holding folder lower end integral type setting are provided between the holding folder
There is arc clamping head, is abound with the conical tooth for being provided with pyramid shape, holding folder inside on the inside of the arc clamping head on arcwall face
It is the convex section of semicircular toothholder that section is provided on face；The expander upper end is provided with handle, lower end is provided with clamping groove, institute
State that batch bar upper end is provided with clamping joint, middle part is provided with expansion ball-joint, lower end is provided with screwdriver bit；The clamping groove and clamping joint phase
Mutually connect and fix；The expander pushes the convex section of toothholder open by the mobile expansion ball-joint of limit screw thread, the expansion ball-joint sliding, and
It drives to hold tightly to press from both sides and expand outward, multiple arc clamping heads for holding folder front end tightly entangle the head of a nail of clamping and fixing bone pin.
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 holds the extrados of arc clamping head tightly and fixes locking.
The holding sandwiched set there are three or four.
Screwdriver bit on described batch of bar is provided with plurality of specifications, and the screwdriver bit of plurality of specifications is provided with identical clamping joint, institute
Stating screwdriver bit form includes a word, cross, spiral cutter head.
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 arc clamping heads in
The heart batch bar, screwdriver bit cooperation, are interacted by expansion ball-joint and the convex section of toothholder, to folder expansion is held tightly, in order to open arc-shaped gear
Folder smoothly clamps the head of a nail of bone nail；By the head of a nail of the conical tooth fixing bone pin in arc clamping head, the rotation of rotation grip handle is held tightly
Pipe compresses arc clamping head from outside, and the inner cone nozzle for holding pipe tightly moves down, and the inner cone nozzle inner tubal wall for holding pipe lower part tightly presss from both sides arc
Head inwardly holds bone nail tightly, continues to rotate holding pipe, bone nail cap can be locked by conical tooth, and pass through rotational handle control batch bar
Bone nail is loosened with screwdriver bit, and smoothly takes out bone nail；The present invention makes to take nail process simple and easy to do, and screw easily takes out, and is not in spiral shell
The failures such as sliding slot are followed closely, all kinds of bone nails can be fully met and take out requirement, especially half-thread cancellous bone screw and half-thread hollow nail
Requirement.
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 using three groups of arc clamping heads and center spiral shell batch cooperation, passes through the conical tooth fixing bone pin in arc clamping head
The head of a nail, quickly and easily take out screw, prevent screw sliding slot, especially suitable for taking out half-thread cancellous bone screw and half-thread
Hollow nail can be widely used in clinic, mitigate patient suffering, improve 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 bone surgery 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 convex 8. arc clamping head of section of 6. conical tooth, 7. toothholder tightly
9. 10. fastening thread of anti-slip handle, 11. inner cone nozzle, 12. handle
13. 14. batches of bars 15. of clamping joint, which expand ball-joint 16., limits screw thread
Specific embodiment
Below in conjunction with attached drawing of the embodiment of the present invention, technical solution of the embodiment of the present invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
According to Fig. 1, the present invention provides a kind of bone surgery nail-fetching devices, including take nail pipe 1, hold tightly pipe 2, expander 3,
Hand 4, hold tightly folder 5, conical tooth 6, the convex section 7 of toothholder, arc clamping head 8, anti-slip handle 9, fastening thread 10, inner cone nozzle 11, handle 12,
Clamping joint 13, batch bar 14, expansion ball-joint 15, limit screw thread 16.
It is described that interior be spirally connected by limit screw thread 16 of nail pipe 1 is taken to be provided with expander 3, it is described to take outside nail pipe 1 by fastening spiral shell
Line 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 to take
Nail 1 lower circumferential of pipe is provided with multiple holding folders 5 to integral type, is provided with holding clip slot, the holding between the holding folder 5
It presss from both sides 5 lower end integral types and is provided with arc clamping head 8, be abound with the cone for being provided with pyramid shape on the 8 inside arcwall face of arc clamping head
Shape tooth 6, it is the convex section 7 of semicircular toothholder that the holding, which presss from both sides and is provided with section on 5 medial surfaces,；3 upper end of expander is provided with
Handle 12, lower end are provided with clamping groove, described batch of 14 upper end of bar is provided with clamping joint 13, middle part be provided with expansion ball-joint 15, under
End is provided with screwdriver bit；The clamping groove is mutually connected and fixed with clamping joint 13；The expander 3 expands by the way that limit screw thread 16 is mobile
Ball-joint 15 is opened, the convex section 7 of toothholder is pushed in the sliding of expansion ball-joint 15 open, and holding folder 5 is driven to expand outward, multiple holdings folders 5
The arc clamping head 8 of front end entangles the head of a nail of clamping and fixing bone pin.
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, and the inner cone nozzle 11 embraces the extrados of arc clamping head 8
Tight and fixed locking.
There are three 5 settings of holding folder.
Screwdriver bit on described batch of bar 14 is provided with plurality of specifications, and the screwdriver bit of plurality of specifications is provided with identical clamping joint
13, the screwdriver bit form is cross cutter head.
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
Arc clamping head 8 and center batch bar 14, screwdriver bit cooperate, and by the head of a nail of 6 fixing bone pin of conical tooth in arc clamping head 8, rotation is anti-
The rotation of sliding handle 9 holds pipe 2 tightly and compresses arc clamping head 8 from outside, and the inner cone nozzle 11 for holding pipe 2 tightly moves down, and holds the inner cone of 2 lower part of pipe tightly
11 inner tubal wall of nozzle inwardly holds arc clamping head 8 tightly bone nail, continues to rotate and holds pipe 2 tightly, can lock bone nail by conical tooth 6
Cap, and bone nail is loosened by the control batch bar 14 of rotational handle 12 and screwdriver bit, and smoothly take out bone nail；The present invention makes to take nail process simple
Easy row, screw easily take out, and are not in the failures such as screw sliding slot, can fully meet all kinds of bone nails and take out requirement, and especially half
The requirement of screw thread cancellous bone screw and half-thread hollow nail.
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, using batch cooperation of three groups of arc clamping heads and center spiral shell, by the head of a nail of the conical tooth fixing bone pin in arc clamping head,
Screw is quickly and easily taken out, screw sliding slot is prevented, especially suitable for taking out half-thread cancellous bone screw and half-thread hollow nail,
It can be widely used in clinic, mitigate patient suffering, improve 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 bone surgery nail-fetching device, which is characterized in that including taking nail pipe, holding pipe, expander, handle, holding folder, taper tightly
The convex section of tooth, toothholder, arc clamping head, anti-slip handle, fastening thread, inner cone nozzle, handle, clamping joint, batch bar, expansion ball-joint, limit
Screw thread；Described that interior be spirally connected by limit screw thread of nail pipe is taken to be provided with expander, described take is provided with outside nail pipe by fastening thread
Hold pipe tightly；It is described take be provided with handle on the outside of nail pipe upper end, inside is provided with limit screw thread, described to take nail pipe lower circumferential to one
Body formula is provided with multiple holding folders, and holding clip slot is provided between the holding folder, and the holding folder lower end integral type is provided with
Arc clamping head is abound with the conical tooth for being provided with pyramid shape, the holdings folder medial surface on arcwall face on the inside of the arc clamping head
On be provided with section be the convex section of semicircular toothholder；The expander upper end is provided with handle, lower end is provided with clamping groove, described
Batch bar upper end is provided with clamping joint, middle part is provided with expansion ball-joint, lower end is provided with screwdriver bit；The clamping groove and clamping joint are mutual
It connects and fixes；The expander pushes the convex section of toothholder, and band open by the mobile expansion ball-joint of limit screw thread, the expansion ball-joint sliding
Dynamic folder of holding tightly is expanded outward, and multiple arc clamping heads for holding folder front end tightly entangle the head of a nail of clamping and fixing bone pin.
2. a kind of bone surgery 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 extrados of arc clamping head tightly and fixes locking.
3. a kind of bone surgery nail-fetching device according to claim 1, which is characterized in that the holding sandwiched set there are three or
Person four.
4. a kind of bone surgery nail-fetching device according to claim 1, which is characterized in that the screwdriver bit on described batch of bar is provided with
Plurality of specifications, the screwdriver bit of plurality of specifications are provided with identical clamping joint, and the screwdriver bit form includes a word, cross, spiral
Cutter head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610547722.8A CN106175916B (en) | 2016-07-13 | 2016-07-13 | A kind of bone surgery nail-fetching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610547722.8A CN106175916B (en) | 2016-07-13 | 2016-07-13 | A kind of bone surgery nail-fetching device |
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| Publication Number | Publication Date |
|---|---|
| CN106175916A CN106175916A (en) | 2016-12-07 |
| CN106175916B true CN106175916B (en) | 2019-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610547722.8A Active CN106175916B (en) | 2016-07-13 | 2016-07-13 | A kind of bone surgery nail-fetching device |
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| CN106821488B (en) * | 2017-04-07 | 2023-08-11 | 中国人民解放军总医院 | Auxiliary sleeve for screw fixation and taking out |
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| KR101934391B1 (en) * | 2017-07-18 | 2019-01-02 | 주식회사 솔고 바이오메디칼 | Sleeve pin assembly for fixing bone pieces |
| CN109965970A (en) * | 2017-12-27 | 2019-07-05 | 慈溪市人民医院 | Device for fetching nail and its application |
| CN110200692B (en) * | 2018-12-27 | 2022-06-28 | 丽水市人民医院 | Broken nail taking device for orthopedics |
| CN110236662B (en) * | 2018-12-27 | 2022-07-15 | 丽水市人民医院 | Fracture restorer |
| CN109984832B (en) * | 2018-12-28 | 2022-04-15 | 丽水市人民医院 | Hollow nail and matched nail extractor thereof |
| CN111317556B (en) * | 2020-03-12 | 2021-03-26 | 施田宝 | Nail taking device for orthopedics department |
| CN111991682B (en) * | 2020-07-21 | 2022-07-12 | 哈尔滨医科大学 | Medical clinical continuous anus dilator |
| CN213910486U (en) * | 2020-08-31 | 2021-08-10 | 苏州微创骨科医疗工具有限公司 | Nail taking device |
| CN112244987B (en) * | 2020-11-05 | 2022-09-09 | 孙金堂 | Portable bone 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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- 2016-07-13 CN CN201610547722.8A patent/CN106175916B/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 |
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| 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 |
|---|---|
| CN106175916A (en) | 2016-12-07 |
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