CN2707200Y - Dynamic joint for exterior fixer - Google Patents
Dynamic joint for exterior fixer Download PDFInfo
- Publication number
- CN2707200Y CN2707200Y CN 200320103343 CN200320103343U CN2707200Y CN 2707200 Y CN2707200 Y CN 2707200Y CN 200320103343 CN200320103343 CN 200320103343 CN 200320103343 U CN200320103343 U CN 200320103343U CN 2707200 Y CN2707200 Y CN 2707200Y
- Authority
- CN
- China
- Prior art keywords
- guide post
- thread guide
- dynamic joint
- conductor bar
- screw thread
- 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.)
- Expired - Lifetime
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- Surgical Instruments (AREA)
Abstract
The utility model relates to a dynamic joint inner screw used on the bone external fixer, which comprises an inner screw conductor bar 1, a removable pin 2 and an outer screw conductor bar 3. The head end of the dynamic joint inner screw used on the bone external fixer is provided with the inner screw conductor bar 1, the middle position of the dynamic joint inner screw used on the bone external fixer is the removable pin 2 while the back end is the outer screw conductor bar 3. Both of the upper ends of the inner screw conductor bar 1 and the outer screw conductor bar 3 are provided with holes whose diameters are from 2 mm to 4 mm. The removable pin 2 separately passes through the upper end holes of the inner screw conductor bar 1 and the outer screw conductor bar 3, and connects the inner screw conductor bar 1 with the outer screw conductor bar 3. The dynamic joint inner screw used on the bone external fixer of the utility model has the advantages of big rotation amplitude, simple structure, accurate angle and convenience for use.
Description
One, technical field
This utility model belongs to a kind of medical apparatus and instruments, is specifically related to the outer dynamic joint of deciding to use on the device together of a kind of bone.
Two, background technology
The joint rotation amplitude of existing bone external fixator is little, and angle is not enough, and structure is constant, can not satisfy actual needs, and dynamically the street corner structure is flexible for this, and arbitrary combination is common to fracture fixation, malformation correction and limb lengthening.
Three, summary of the invention
Technical problem to be solved in the utility model is that a kind of rotation amplitude of design is big, and angle is accurate, and is simple in structure, dynamic joint easy to use.
The technical solution of the utility model: the dynamic joint that uses on a kind of bone external fixator, it is by female thread guide post 1, active pin shaft 2, external screw thread guide post 3 is formed.The head end of external fixator dynamic joint is a female thread guide post 1, the centre is an active pin shaft 2, end is an external screw thread guide post 3, be respectively arranged with Φ 2mm--Φ 4mm hole on female thread guide post 1 and external screw thread guide post 3 tops, active pin shaft 2 passes female thread guide post 1 topped hole and external screw thread guide post 3 topped hole respectively, connects female thread guide post 1 and external screw thread guide post 3.The female thread of female thread guide post 1 is M5--M6, and length 10-50mm, external diameter are Φ 6mm-Φ 8mm, and the top is provided with angular adjustment groove and pin shaft hole.The external screw thread of external screw thread guide post 3 is M5-M6, length 10-50mm, and the top is provided with angular adjustment groove and pin shaft hole.Described active pin shaft 2 is provided with the centre bore of Φ 1mm, and external diameter is Φ 2mm-Φ 4mm.
Advantage of the present utility model: this dynamic joint structure is flexible, arbitrary combination, and mobility is big, is common to fracture fixation, malformation correction and limb lengthening.
Four. description of drawings
Fig. 1 is a structural representation of the present utility model
Five specific embodiment:
A kind of external fixator dynamic joint comprises female thread guide post 1, active pin shaft 2, external screw thread guide post 3, be respectively arranged with Φ 4mm hole on female thread guide post 1 and external screw thread guide post 3 tops, pass this hole by active pin shaft 2 and connect female thread guide post 1 and external screw thread guide post 3; Female thread guide post 1 female thread is M6, and length 50mm, external diameter are Φ 8mm; External screw thread guide post 3 external screw threads are M6, length 50mm, and active pin shaft 2 is provided with the centre bore of Φ 1mm, and external diameter is Φ 4mm.
Claims (4)
1, a kind of external fixator dynamic joint, it comprises female thread guide post (1), active pin shaft (2), external screw thread guide post (3), it is characterized in that: the head end of external fixator dynamic joint is female thread guide post (1), and the centre is active pin shaft (2), and end is external screw thread guide post (3); Be respectively arranged with Ф 2mm--Ф 4mm hole on female thread guide post (1) and external screw thread guide post (3) top, active pin shaft (2) passes female thread guide post (1) topped hole and external screw thread guide post (3) topped hole respectively, connects female thread guide post (1) and external screw thread guide post (3).
2, external fixator dynamic joint according to claim 1 is characterized in that: the female thread of female thread guide post (1) is M5--M6, and length 10-50mm, external diameter are Ф 6mm-Ф 8mm, and the top is provided with angular adjustment groove and pin shaft hole.
3, external fixator dynamic joint according to claim 1 is characterized in that: the external screw thread of external screw thread guide post (3) is M5--M6, length 10-50mm, and the top is provided with angular adjustment groove and pin shaft hole.
4, external fixator dynamic joint according to claim 1 is characterized in that: described active pin shaft (2) is provided with the centre bore of Ф 1mm, and external diameter is Ф 2mm-Ф 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320103343 CN2707200Y (en) | 2003-11-14 | 2003-11-14 | Dynamic joint for exterior fixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320103343 CN2707200Y (en) | 2003-11-14 | 2003-11-14 | Dynamic joint for exterior fixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2707200Y true CN2707200Y (en) | 2005-07-06 |
Family
ID=34845180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320103343 Expired - Lifetime CN2707200Y (en) | 2003-11-14 | 2003-11-14 | Dynamic joint for exterior fixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2707200Y (en) |
-
2003
- 2003-11-14 CN CN 200320103343 patent/CN2707200Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131114 Granted publication date: 20050706 |