CN2654048Y - Sliding proof clavicle nail - Google Patents
Sliding proof clavicle nail Download PDFInfo
- Publication number
- CN2654048Y CN2654048Y CN 200320123991 CN200320123991U CN2654048Y CN 2654048 Y CN2654048 Y CN 2654048Y CN 200320123991 CN200320123991 CN 200320123991 CN 200320123991 U CN200320123991 U CN 200320123991U CN 2654048 Y CN2654048 Y CN 2654048Y
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- CN
- China
- Prior art keywords
- nail
- hollow screw
- death
- section
- stage casing
- 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 - Fee Related
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Abstract
The utility model discloses a skidproof nail comprising a nail body and a hollow screw. The nail body is divided into three parts. The front part is a flat section; the middle part is columnar; the rear part is a column form with a diameter smaller than the middle part and with a hollow screw. The inside diameter of the hollow screw cooperates with the middle part of the nail body with screw on outer surface. The nail is a complete body without inside or outside displacement and turning.
Description
Technical field
This utility model belongs to field of surgical, particularly relates to the antiskid lock nail of internal fixation when being used for clavicular fracture in a kind of bone surgery and resetting.
Background technology
The patient of clavicular fracture, it is fixing its clavicle to be resetted again with apparatus, and the existing fixed method mainly contains two kinds, and the one, use the steel plate internal fixation, but its wound surface is bigger, big to tissue injury, easily lead to complications.Another kind method is to be screwed in the pulp cavity with Kirschner wire, and the two-phase lock bone is fixed, and the shortcoming of this method is the anti-rotation ability of Kirschner wire, easily skids, deviates from, and is difficult to fix, and makes that the wounded's wound shoulder can not functional activity; And clavicle itself has certain curvature, and columniform Kirschner wire can not be crooked, can't go deep into pulp cavity, and fixed effect is not fine.
Summary of the invention
To be solved in the utility model is that Kirschner wire easily rotates the technical problem of skidding, easily deviating from, provide a kind of and can go deep into pulp cavity, and the antiskid lock nail that can not skid and.
For this reason, this utility model has adopted following technical scheme: the antiskid lock nail, comprise nail body and hollow screw, and the nail status is three sections, and leading portion is a flat, and the stage casing is cylindrical, and what back segment was a diameter less than the stage casing is cylindrical, has external screw thread; The internal diameter of hollow screw matches with nail body stage casing, and outer surface has screw thread.
This utility model has two kinds of further technical schemes, and a kind of is that it also has the breechblock nut, and the breechblock nut has female thread, and section matches with following closely after one's death; The hollow screw afterbody also has a tail hoop, and tail hoop internal diameter is less than nail body stage casing.The hollow screw tail end can be established the empennage of hexagonal in the band, is beneficial to it is screwed into pulp cavity; Under the situation of not considering the tolerance fit factor, section is consistent after one's death with nail for the internal diameter of hollow screw tail hoop.
Another further technical scheme is: the hollow screw afterbody has self-locking nut, and described self-locking nut and hollow screw are one, and inner surface has and follows closely section female thread that matches after one's death.The self-locking nut outer surface is a hexagon; Nail section after one's death also has the extension, and the extension does not have screw thread, and diameter is less than following closely section after one's death.
This utility model in use, to follow closely body by the fixing means of Kirschner wire and insert pulp cavity, and then utilize the external screw thread of hollow screw that it is screwed in the skeleton, this moment, hollow screw entangled nail body stage casing, again the breechblock nut is screwed in nail after one's death on the section, or section is fixing after one's death with nail to utilize self-locking nut; To follow closely after one's death at last, the redundance of section cuts off.Because nail body leading portion is a flat, has certain amount of deflection, can be according to the bending of clavicle curvature, thereby can enter pulp cavity more deeply, the flat nail body after the bending simultaneously is difficult for rotation; Hollow screw is screwed in the skeleton inner surface, and its tail hoop props up nail body stage casing simultaneously, but the staple body prevents outside slippage; The breechblock nut is fixed hollow screw again, makes whole clavicle nail become complete integral body, and inside and outside displacement can not take place again, also can not rotate.With self-locking nut staple body, equally also can make the nail body that interior outer displacement does not take place.
Description of drawings
Fig. 1 is the structural representation of this utility model embodiment one.
Fig. 2 is the sketch map of Fig. 1 hollow core screw empennage.
Fig. 3 is the structural representation of this utility model embodiment two.
The specific embodiment
Referring to Fig. 1.The antiskid lock nail of present embodiment comprises nail body 1, hollow screw 2 and breechblock nut 3, the nail status is three sections, stage casing 12 is the cylindrical of diameter 2.5mm, highly be 6cm, leading portion 11 is actually the flat that the stage casing is processed, and body thickness is at 1.0-1.8mm, the about 2.5mm of width, highly be 5cm, back segment 13 is that diameter is the cylindrical of 2.0mm, and height 4cm has external screw thread; Hollow screw 2 also has external screw thread, and its internal diameter is 2.6mm, and the afterbody of screw 2 is provided with the inside projection 21 of a circle, forms a tail hoop, and the internal diameter of tail hoop 21 is 2.1mm; Hollow screw 2 tail ends have empennage 22, and the slightly larger in diameter of empennage 22 is in 2.5mm, and the groove 23 of hexagonal can turn with spanner in having; Breechblock nut 3 has female thread, with nail after one's death section 13 match, breechblock nut 3 is greater than groove 23, middle in addition can ccontaining nail the circular hole of section 13 after one's death.
Use for being suitable for the different wounded, this utility model can have different specifications, and total length is 15cm, preceding segment length is that 5cm immobilizes, and the length sum of stage casing and back segment is that 10cm immobilizes, and back segment length has the 3-5cm plurality of specifications, correspondingly, middle segment length also has plurality of specifications.
Referring to Fig. 3.The antiskid lock nail of present embodiment comprises nail body 4 and hollow screw 5, and nail body 4 is divided into four sections, and stage casing 42 is the cylindrical of diameter 2.5mm, highly be 6cm, leading portion 41 is actually the flat that the stage casing is processed, and body thickness is at 1.0-1.8mm, the about 2.5mm of width, highly be 5cm, back segment 43 is that diameter is the cylindrical of 2.0mm, height 1cm, have external screw thread, back segment also has extension 44, and its diameter is less than back segment 43, and is not threaded.Hollow screw 5 leading portions have external screw thread 51, and hollow screw 5 afterbodys have self-locking nut 52, and self-locking nut 52 has female thread, with nail section 43 threads engaged after one's death.After present embodiment stretched into pulp cavity, the screw thread 51 of hollow screw was screwed in the skeleton inner surface, and simultaneously self-locking nut 52 is screwed in nail after one's death on the section 43, makes whole clavicle nail fixing, and the extension 44 that will follow closely body then gets rid of and gets final product.
Claims (7)
1. the antiskid lock nail comprises the nail body, it is characterized in that: it also comprises hollow screw, and the nail status is three sections, and leading portion is a flat, and the stage casing is cylindrical, and what back segment was a diameter less than the stage casing is cylindrical, has external screw thread; The internal diameter of hollow screw matches with nail body stage casing, and outer surface has screw thread.
2. antiskid lock nail as claimed in claim 1 is characterized in that: it also has the breechblock nut, and the breechblock nut has female thread, and section matches with following closely after one's death; The hollow screw afterbody also has a tail hoop, and tail hoop internal diameter is less than nail body stage casing.
3. antiskid lock nail as claimed in claim 2 is characterized in that: the hollow screw tail end is established the empennage of hexagonal in the band.
4. antiskid lock nail as claimed in claim 3 is characterized in that: section is consistent after one's death with nail for the internal diameter of hollow screw tail hoop.
5. antiskid lock nail as claimed in claim 1 is characterized in that: the hollow screw afterbody has self-locking nut, and described self-locking nut and hollow screw are one, and inner surface has and follows closely section female thread that matches after one's death.
6. antiskid lock nail as claimed in claim 5 is characterized in that: the self-locking nut outer surface is a hexagon.
7. antiskid lock nail as claimed in claim 6 is characterized in that: nail section after one's death also has the extension, and the extension does not have screw thread, and diameter is less than following closely section after one's death.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320123991 CN2654048Y (en) | 2003-11-17 | 2003-11-17 | Sliding proof clavicle nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320123991 CN2654048Y (en) | 2003-11-17 | 2003-11-17 | Sliding proof clavicle nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2654048Y true CN2654048Y (en) | 2004-11-10 |
Family
ID=34348927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320123991 Expired - Fee Related CN2654048Y (en) | 2003-11-17 | 2003-11-17 | Sliding proof clavicle nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2654048Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105342678A (en) * | 2015-12-15 | 2016-02-24 | 徐强 | Secondary screw and bone screw adopting same |
| CN105877827A (en) * | 2014-11-20 | 2016-08-24 | 宋若怡 | Sliding-preventing kirschner wire |
-
2003
- 2003-11-17 CN CN 200320123991 patent/CN2654048Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105877827A (en) * | 2014-11-20 | 2016-08-24 | 宋若怡 | Sliding-preventing kirschner wire |
| CN105342678A (en) * | 2015-12-15 | 2016-02-24 | 徐强 | Secondary screw and bone screw adopting same |
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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 |