CN2617323Y - Adjustable hook-socket fracture external fixer - Google Patents
Adjustable hook-socket fracture external fixer Download PDFInfo
- Publication number
- CN2617323Y CN2617323Y CN 03224682 CN03224682U CN2617323Y CN 2617323 Y CN2617323 Y CN 2617323Y CN 03224682 CN03224682 CN 03224682 CN 03224682 U CN03224682 U CN 03224682U CN 2617323 Y CN2617323 Y CN 2617323Y
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- China
- Prior art keywords
- connecting rod
- type connecting
- slot type
- bolt
- utility
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a tunable fracture external fixation with hooks and grooves, comprising fixed pins, a slit-type connecting rod, a plurality of bolts and nuts; wherein, transverse grooves are arranged in the inside of the bolt caps; the bolts are fixed in the sliding grooves of the slit-type connecting rod; the fixed pins are inserted into the transverse grooves of the bolts and are fixed at the slit-type connecting rod with the nut. The utility model meets the requirements of reduction of fracture, fixation, biology mechanical property, also has the advantages of simple structure, less parts, stable performance, tunable pin length, convenient operation, and is favorable for the function exercise and getting well of the patients.
Description
Technical field
This utility model relates to a kind of fracture external fixator.
Background technology
Just adopt bilateral external fixator treatment fracture as far back as nineteen fifty-one Hoffmann, but its locking pin need penetrate the limbs bilateral, and both sides all to install connecting rod, be not easy to limb activity and take exercise.People such as Bastiani designed a kind of monolateral axial pressure external fixator (DAF) in 1984, and locking pin penetrates to the offside cortical bone from limbs one side, the feasible reduction of the fracture, fixing and pressurization.But this external fixator complex structure, heaviness (650g) are not easy to patient activity and take exercise; Locking pin astragalus broken line is far away, and fixing understable to fracture end can not be used for big section syntripsis and dual fixation of fractures; Spacing is little in the pin group, poor stability; Needle gage is fixed, and is not easy to select suitable entry point; Pin thick (Φ 6mm), bigger to bone and soft tissue injury, refracture easily takes place.
Summary of the invention
The purpose of this utility model is at the above problem, and a kind of simple in structure, stable performance, adjustable hooks slot type fracture external fixator that needle gage is adjustable are provided.
The purpose of this utility model is achieved in that this utility model comprises locking pin, also comprise slot type connecting rod, several screw bolt and nut, inboard at nuts has translot, bolt places the sliding tray of slot type connecting rod, in the translot of locking pin inserting bolt, and be fixed on the slot type connecting rod by nut.
Technique effect of the present utility model is: this utility model is under the prerequisite that satisfies the reduction of the fracture, fixed function and biomechanical property requirement, have simple in structure, parts are few, stable performance, adjustable, the easy to operate advantage of needle gage, also help patient's functional exercise and rehabilitation.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is this utility model embodiment and skeletal fixation structural representation together.
Fig. 2 is the front view of slot type connecting rod among the embodiment.
Fig. 3 is the side view of bolt among the embodiment.
The specific embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, the fracture external fixator of present embodiment is made of a slot type connecting rod 6, four locking pins 1, three bolts 5 and three nuts 4, inboard at the nuts of each bolt 5 has two translots that are parallel to each other 8, bolt 5 places the sliding tray 7 of slot type connecting rod 6, one end of every locking pin 1 passes skeleton 3, in the translot 8 of other end inserting bolt 5, fastening nut 4 and bolt 5, thereby locking pin 1 is fixed on the slot type connecting rod 6, plays the effect of fixing fracture 2 by locking pin 1.In three bolts of present embodiment, be inserted with two locking pins on the bolt that has, only be inserted with a locking pin on the bolt that has, the quantity of bolt and locking pin is decided according to the concrete condition of fracture in this utility model, and the spacing of locking pin can be regulated along sliding tray.
In the above-described embodiments, can between nut 4 and slot type connecting rod 6, add upper gasket.
In this utility model, the quantity of translot is one to several on each bolt, all is feasible, and is parallel to each other between the translot on each bolt or not parallel.
Claims (3)
1. adjustable hooks slot type fracture external fixator, comprise locking pin, it is characterized in that: also comprise slot type connecting rod, several screw bolt and nut, inboard at nuts has translot, bolt places the sliding tray of slot type connecting rod, in the translot of locking pin inserting bolt, and be fixed on the slot type connecting rod by nut.
2. adjustable hooks slot type fracture external fixator according to claim 1 is characterized in that: the quantity of translot is one to several on each bolt, is parallel to each other or not parallel.
3. adjustable hooks slot type fracture external fixator according to claim 1 and 2 is characterized in that: be provided with packing ring between nut and slot type connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03224682 CN2617323Y (en) | 2003-03-24 | 2003-03-24 | Adjustable hook-socket fracture external fixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03224682 CN2617323Y (en) | 2003-03-24 | 2003-03-24 | Adjustable hook-socket fracture external fixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2617323Y true CN2617323Y (en) | 2004-05-26 |
Family
ID=34245678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03224682 Expired - Fee Related CN2617323Y (en) | 2003-03-24 | 2003-03-24 | Adjustable hook-socket fracture external fixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2617323Y (en) |
-
2003
- 2003-03-24 CN CN 03224682 patent/CN2617323Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |