CN108013924B - A kind of fracture fixation pilot pin - Google Patents
A kind of fracture fixation pilot pin Download PDFInfo
- Publication number
- CN108013924B CN108013924B CN201711443077.6A CN201711443077A CN108013924B CN 108013924 B CN108013924 B CN 108013924B CN 201711443077 A CN201711443077 A CN 201711443077A CN 108013924 B CN108013924 B CN 108013924B
- Authority
- CN
- China
- Prior art keywords
- needle
- needle body
- axle sleeve
- fracture fixation
- swivel nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/683—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin comprising bone transfixation elements, e.g. bolt with a distal cooperating element such as a nut
-
- 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/846—Nails or pins, i.e. anchors without movable parts, holding by friction only, with or without structured surface
Abstract
The invention discloses a kind of fracture fixation pilot pins, it include two needle bodies, the lower end of every needle body is provided with needle point, the upper end of every needle body is provided with needle cap, the needle body is provided with multiple hangnails on the part between needle point and needle cap, it is connected between two needle bodies by elastic device, the elastic device includes that there are two axle sleeves, two screw rods and a swivel nut, two axle sleeve difference turning sets are on two needle bodies, and the corresponding top for being located at hangnail on same needle body of the axle sleeve, a spring is respectively connected between each axle sleeve and each screw rod, two screw rods are spirally connected respectively is installed in the axial ends of swivel nut, and the thread rotary orientation of two screw rods is in be reversed.By using above structure, not only there is backing stop structure the present invention provides a kind of, and connect it is more convenient securely, while can also fracture fixation pilot pin according to actually required progress apart from adjusting after being fixedly connected.
Description
Technical field
The present invention relates to the field of medical instrument technology, and in particular to a kind of fracture fixation pilot pin.
Background technique
Currently, being usually to use Kirschner wire that positioning is fixed when short and small fracture or avulsion fracture occur for people, that is, exist
Two Kirschner wires are inserted on fracture both sides respectively, then realize connection by bondage wire between two Kirschner wires, so on the one hand
Since Kirschner wire and wire are all very tiny, the not only troublesome and difficulty of bondage operation is big, on the other hand passes through steel wire
Line is easily broken to connect, while can not carry out further according to needs apart from adjusting after bondage.Further, since existing Kirschner wire sheet
Body does not have backing stop structure, therefore often has retrogressing phenomenon after Kirschner wire insertion pin hole.
Summary of the invention
In view of the deficiencies of the prior art, not only there is backing stop structure the present invention provides a kind of, but also connects more convenient
It securely, can also fracture fixation pilot pin according to actually required progress apart from adjusting while after being fixedly connected.
To achieve the above object, the present invention provides a kind of fracture fixation pilot pins, include two needle bodies, every needle body
Lower end be provided with needle point, the upper end of every needle body is provided with needle cap, part of the needle body between needle point and needle cap
On be provided with multiple hangnails, pass through elastic device between two needle bodies and connect, the elastic device includes that there are two axle sleeves, two
A screw rod and a swivel nut, two axle sleeve difference turning sets are on two needle bodies, and the axle sleeve is corresponding on same needle body
The top of hangnail is respectively connected with a spring between each axle sleeve and each screw rod, two screw rods are spirally connected respectively is installed in the axis of swivel nut
To both ends, and the thread rotary orientation of two screw rods is in be reversed.
The beneficial effects of the present invention are: using the above structure, firstly, since the present invention be provided on the needle body it is multiple
Hangnail, therefore needle body is inserted into after the pin hole on bone with good retaining effect, secondly as being logical between two needle bodies
Elastic device connection is crossed, and the elastic device is made of axle sleeve, screw rod, swivel nut and spring, such connection type phase
It is attached, is operated more convenient and stronger reliable after connecting by bondage wire than existing.In addition, because of two screw rods
It is spirally connected respectively and is installed in the axial ends of swivel nut, and the thread rotary orientation of two screw rods is in be reversed, therefore passing through rotary threaded sleeve can
Corresponding to drive two screw rods axial movement, i.e. two screw rods are inwardly indented or protruding simultaneously simultaneously, not only easy to operate, but also
So that two needle bodies can also be according to actually required progress apart from adjusting after being fixedly connected.
The present invention can be further arranged to the hangnail and be made of elastic material, and the outer end of each hangnail is provided with
Deformation recess.By using above-mentioned setting, so that the hangnail is after entering pin hole with needle body, moreover it is possible to by the way that elastic deformation occurs
It is fixedly connected to further enhance with pin hole.Rubber, silica gel etc. specifically can be used in the elastic material.
The present invention, which may further be provided to arrange in the shape of a spiral for multiple hangnails, to be arranged on needle body.It is not only convenient for needle in this way
Body is rotatably inserted into pin hole, and has stronger retaining effect after being inserted into.
The present invention, which may further be provided, is provided with soft gum cover for also cladding outside the swivel nut, and the swivel nut and soft
Property gum cover middle part arc-shaped recess setting.By the way that soft gum cover is arranged, it is not only convenient for people and holds rotary threaded sleeve, but also make
Obtaining the swivel nut has a soft outer surface, to effectively avoid causing the injury contacted firmly to fracture tissue.And institute
The arc-shaped recess setting in middle part for stating swivel nut and soft gum cover, not only makes swivel nut and soft gum cover preferably be located by connecting on one
It rises, so that it can preferably be bonded with fracture.
The present invention, which may further be provided, is also folded with rolling member between the axle sleeve and needle body.In this way, not only
Can stationary positioned axle sleeve and needle body very well, also contribute to needle body with respect to axle sleeve rotation, consequently facilitating needle body is inserted into pin hole
In.
It is steel ball that the present invention, which may further be provided as the rolling member,.
Detailed description of the invention
Fig. 1 is structure chart of the invention.
Specific embodiment
A kind of fracture fixation pilot pin is given as shown in Figure 1, includes two needle bodies 1, and the lower end of every needle body 1 is all provided with
It is equipped with needle point 11, the upper end of every needle body 1 is provided with needle cap 12, part of the needle body 1 between needle point 11 and needle cap 12
On be provided with multiple hangnails 13, the hangnail 13 is made of elastic material, and the outer end of each hangnail 13 is provided with deformation
Recess 131.Multiple hangnails 13 are arranged in the shape of a spiral to be arranged on needle body 1.It is connected between two needle bodies 1 by elastic device, institute
The elastic device stated includes there are two 2, two screw rods 3 of axle sleeve and a swivel nut 4, and two axle sleeves 2 distinguish turning set and are mounted in two needles
On body 1, and the corresponding top for being located at hangnail 13 on same needle body 1 of the axle sleeve 2, connect between each axle sleeve 2 and each screw rod 3
It is connected to a spring 5, two screw rods 3 are spirally connected respectively is installed in the axial ends of swivel nut 4, and the thread rotary orientation of two screw rods 3 is in set on the contrary
It sets.Also cladding is provided with soft gum cover 6, and the arc-shaped recess in the middle part of the swivel nut 4 and soft gum cover 6 outside the swivel nut 4
Setting.Rolling member 7 is also folded between the axle sleeve 2 and needle body 1, the rolling member 7 is steel ball.By using above-mentioned knot
Structure not only has backing stop structure the present invention provides a kind of, and connect it is more convenient securely, while can also root after being fixedly connected
Fracture fixation pilot pin according to actually required progress apart from adjusting.
Claims (5)
- It include two needle bodies 1. a kind of fracture fixation pilot pin, the lower end of every needle body is provided with needle point, every needle body Upper end is provided with needle cap, it is characterised in that: and the needle body is provided with multiple hangnails on the part between needle point and needle cap, and two It is connected between root needle body by elastic device, the elastic device axle sleeve, two screw rods and swivel nut including there are two, two Axle sleeve distinguishes turning set on two needle bodies, and the corresponding top for being located at hangnail on same needle body of the axle sleeve, each axle sleeve A spring is respectively connected between each screw rod, two screw rods are spirally connected respectively is installed in the axial ends of swivel nut, and the spiral shell of two screw rods Line rotation direction is in being reversed, and also cladding is provided with soft gum cover, and the middle part of the swivel nut and soft gum cover outside the swivel nut Arc-shaped recess setting.
- 2. a kind of fracture fixation pilot pin according to claim 1, it is characterised in that: the hangnail is by elastic material system At, and the outer end of each hangnail is provided with deformation recess.
- 3. a kind of fracture fixation pilot pin according to claim 1 or 2, it is characterised in that: multiple hangnails are arranged in the shape of a spiral Cloth is arranged on needle body.
- 4. a kind of fracture fixation pilot pin according to claim 1 or 2, it is characterised in that: between the axle sleeve and needle body Also it is folded with rolling member.
- 5. a kind of fracture fixation pilot pin according to claim 4, it is characterised in that: the rolling member is steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711443077.6A CN108013924B (en) | 2017-12-27 | 2017-12-27 | A kind of fracture fixation pilot pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711443077.6A CN108013924B (en) | 2017-12-27 | 2017-12-27 | A kind of fracture fixation pilot pin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108013924A CN108013924A (en) | 2018-05-11 |
| CN108013924B true CN108013924B (en) | 2019-11-12 |
Family
ID=62071766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711443077.6A Active CN108013924B (en) | 2017-12-27 | 2017-12-27 | A kind of fracture fixation pilot pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108013924B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109077775B (en) * | 2018-07-10 | 2020-04-21 | 杭州电子科技大学 | Biological spur grinding device of imitative ant-eating beast tongue |
| CN112155701B (en) * | 2020-10-10 | 2023-03-28 | 江山市人民医院 | Adjustable screw for calcaneus |
| CN113491874A (en) * | 2021-07-19 | 2021-10-12 | 山东第一医科大学(山东省医学科学院) | Automatic tester for middle-distance running |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030220643A1 (en) * | 2002-05-24 | 2003-11-27 | Ferree Bret A. | Devices to prevent spinal extension |
| DE602005007223D1 (en) * | 2005-08-24 | 2008-07-10 | Biedermann Motech Gmbh | Rod-shaped element for use in spine or trauma surgery and stabilization device with such an element |
| EP1825826B1 (en) * | 2006-02-23 | 2008-08-06 | BIEDERMANN MOTECH GmbH | Bone anchoring device |
| CN200948162Y (en) * | 2006-09-12 | 2007-09-19 | 马英 | One side bone outside fixing frame |
| CN204468242U (en) * | 2014-12-17 | 2015-07-15 | 兆峰生技股份有限公司 | Connect the helical form elastic device of the retaining element of more than two joint skeleton |
| CN204708960U (en) * | 2015-05-20 | 2015-10-21 | 陈伟 | A kind of clavicular fracture Wicresoft Medullary fixation device |
| CN205126383U (en) * | 2015-11-30 | 2016-04-06 | 蔡效信 | External fixation ware is restored to multisection section backbone |
| CN205386179U (en) * | 2015-12-31 | 2016-07-20 | 张英泽 | Fracture traction fixation ware that can reset fast simultaneously |
| TWI572318B (en) * | 2016-04-26 | 2017-03-01 | 長庚醫療財團法人林口長庚紀念醫院 | Kirschner wire fixation structure |
-
2017
- 2017-12-27 CN CN201711443077.6A patent/CN108013924B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108013924A (en) | 2018-05-11 |
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