CN2525953Y - Intramedullary nail - Google Patents
Intramedullary nail Download PDFInfo
- Publication number
- CN2525953Y CN2525953Y CN 02205497 CN02205497U CN2525953Y CN 2525953 Y CN2525953 Y CN 2525953Y CN 02205497 CN02205497 CN 02205497 CN 02205497 U CN02205497 U CN 02205497U CN 2525953 Y CN2525953 Y CN 2525953Y
- Authority
- CN
- China
- Prior art keywords
- intramedullary pin
- tail end
- locating slot
- hole
- intramedullary nail
- 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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- Surgical Instruments (AREA)
Abstract
The utility model discloses an intramedullary nail belonging to the medical equipment field. The tail of the intramedullary nail is provided with a positioning slot or a fixation hole, therefore, the whole length of the intramedullary nail can be used to fix the bone fracture, and the application field of the intramedullary nail is enlarged.
Description
Technical field
The utility model discloses a kind of intramedullary pin, belong to technical field of medical instruments.
Background technology
Intramedullary pin at present commonly used is to have fixed groove or fixing hole at its leading section and rear portion, is used to pass bolt, and intramedullary pin and osseous tissue are linked together, fixing fracture site, but do not have fixed groove or fixing hole at the tail end of intramedullary pin.After the fracture line position was leaned on, when surpassing the fixed groove at intramedullary pin rear portion or fixing hole, intramedullary pin is fracture site fixedly, makes intramedullary pin ineffective, has limited the scope of application of intramedullary pin.
The utility model content
The technical problems to be solved in the utility model is the scope of application that enlarges intramedullary pin, even fixedly fracture site of intramedullary pin also can be used near metaphysis in the fracture line position, makes the intramedullary pin total length all can be used to fixedly fracture site.
The technical solution of the utility model is to have locating slot or fixing hole on the intramedullary pin tail end.
On the intramedullary pin tail end, be threaded, on the tail end screw thread, have the protection nut, have cross through hole on the protection nut.
Described protection nut afterbody has connecting thread, has locating slot on connecting thread, and the direction of locating slot is corresponding with the cross through hole direction on the protection nut.
The designed intramedullary pin of this utility model has following advantage:
1. the scope of application is wide.Owing on the intramedullary pin tail end, have locating slot or fixing hole, intramedullary pin can be connected and fixed by bolt with osseous tissue in its total length, thereby need only fracture line in the length range of intramedullary pin, can use fixedly fracture site of intramedullary pin, the scope of application with the intramedullary pin of locating slot or fixing hole is not big than present tail end, has enlarged the range of application of intramedullary pin.
2. rational in infrastructure, easy and simple to handle.Owing on the protection nut on the intramedullary pin tail end screw thread, have cross through hole; the cross through hole direction is corresponding with the locating slot direction of protection nut afterbody; therefore can use localizer; adjust the cross through hole direction on the protection nut; make its locating slot direction or fixing hole direction consistent with the intramedullary pin tail end; make set bolt exactly by cross through hole and locating slot or fixing hole, be connected and fixed intramedullary pin and osseous tissue.
Description of drawings
Fig. 1 is the front view of intramedullary pin.
Fig. 2 is the front view of protection nut.
Fig. 3 is the vertical view of Fig. 2.
Fig. 4 is the left view of Fig. 2.
Fig. 5 is intramedullary pin and the state diagram of protecting nut to be installed together.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is elaborated.
Front end and rear portion at intramedullary pin 1 have fixed groove 2 and fixing hole 3 respectively.Tail end at intramedullary pin 1 has locating slot 4, is threaded 5 at the tail end of intramedullary pin 1.Its structure is seen shown in Figure 1.
It is shown in Figure 4 that the structure of the protection nut 6 on the tail end screw thread 5 of intramedullary pin 1 sees that Fig. 2 arrives.Have cross through hole 7 on protection nut 6, have connecting thread 8 at the afterbody of protecting spiral shell 6, have locating slot 9 on it, the direction of locating slot 9 is consistent with the direction of cross through hole 7.On connection spiral shell 8, also have hexagon ring 10, be used for the connecting screw cutter.
In use, intramedullary pin 1 inserts in the medullary cavity, and intramedullary pin 1 tail end is also imbedded in the medullary cavity.To protect nut 6 to be screwed on the tail end screw thread 5 of intramedullary pin 1 then.Utilize intramedullary pin tail end lock hole localizer; can adjust the direction of the cross through hole 7 on the protection nut 6 consistent with the direction of intramedullary pin 1 tail end locating slot 4; and can on osseous tissue, hole; make bolt pass osseous tissue and cross through hole 7 and locating slot 4; osseous tissue and intramedullary pin 1 are connected and fixed; thereby make the intramedullary pin total length all can be used for fixedly fracture site, enlarge the intramedullary pin scope of application.
Claims (3)
1. an intramedullary pin is characterized in that: have locating slot or fixing hole on its tail end.
2. intramedullary pin according to claim 1 is characterized in that: be threaded on the intramedullary pin tail end, have the protection nut on the tail end screw thread, have cross through hole on the protection nut.
3. intramedullary pin according to claim 2 is characterized in that: have connecting thread at described protection nut afterbody, have locating slot on connecting thread, the direction of locating slot is corresponding with the cross through hole direction on the protection nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02205497 CN2525953Y (en) | 2002-03-04 | 2002-03-04 | Intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02205497 CN2525953Y (en) | 2002-03-04 | 2002-03-04 | Intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2525953Y true CN2525953Y (en) | 2002-12-18 |
Family
ID=33687133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02205497 Expired - Fee Related CN2525953Y (en) | 2002-03-04 | 2002-03-04 | Intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2525953Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101431956B (en) * | 2006-04-19 | 2011-05-04 | 新磁有限公司 | Electric intramedullary nails system |
-
2002
- 2002-03-04 CN CN 02205497 patent/CN2525953Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101431956B (en) * | 2006-04-19 | 2011-05-04 | 新磁有限公司 | Electric intramedullary nails system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20021218 Termination date: 20100304 |