CN202036306U - Hip joint operation screw - Google Patents
Hip joint operation screw Download PDFInfo
- Publication number
- CN202036306U CN202036306U CN2011200580704U CN201120058070U CN202036306U CN 202036306 U CN202036306 U CN 202036306U CN 2011200580704 U CN2011200580704 U CN 2011200580704U CN 201120058070 U CN201120058070 U CN 201120058070U CN 202036306 U CN202036306 U CN 202036306U
- Authority
- CN
- China
- Prior art keywords
- hole
- screw
- staple
- hip joint
- fixing head
- 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
A hip joint operation screw belongs to a medical instrument and comprises a fixed plate and a rod cover, wherein the fixed plate is at least provided with three countersunk holes, the fixed plate and the rod cover are integrated, the rod cover is provided with a regularhexagon hole, a six-edge rod is arranged in the regularhexagon hole, one end of the regularhexagon hole is provided with a section of internal threads, one end of the six-edge rod is provided with a threaded head, and the other end of the six-edge rod is provided with a blind hole which is provided with a fixing screw. The hip joint operation screw is characterized in that a section of round hole is arranged in the regularhexagon hole, threads are arranged on the round hole, internal threads are arranged on the blind hole, a screw rod of the fixing screw is provided with external threads which are matched with the internal threads arranged on the blind hole, external threads are arranged on a screw head of the fixing screw, arc-shaped plates are respectively arranged at two sides of the fixed plate, countersunk holes are arranged in the arc-shaped plates, and a locking hole is arranged in the fixed plate and is close to the position of the fixing screw. The hip joint operation screw is better in stability after an operation, and reduces screw quitting phenomenon of the fixing screw.
Description
Technical field
This utility model belongs to medical apparatus and instruments, is used for the fracture operation internal fixation, is specifically related to a kind of operation on hip joint screw.
Background technology
Fig. 1, Fig. 2 are the structure charts of traditional operation on hip joint screw, it comprises fixing head 1, bar cover 5, at least be provided with 3 counter sinks on the fixing head 1, fixing head 1 is an one with bar cover 5, and bar cover 5 is provided with the regular hexagon hole, one end in regular hexagon hole has one section female thread 4, six rib bars 3 are arranged in the regular hexagon hole, and the other end that an end of six rib bars 3 is provided with thread head 6, six rib bars 3 is provided with the light blind hole, blind hole is provided with staple 2.It is behind the bone internal fixation operation, and it is 16.8% that staple moves back the nail rate, and its nonreactive fracture spinfunction often causes internal fixation material to become flexible, move back nail in addition, causes operative failure; When intertrochanteric fracture merged the comminuted fracture of little tuberosity, the latter did not generally process simultaneously, malunion or disunion phenomenon pilosity.
Summary of the invention
This utility model provides stability better a kind of operation on hip joint screw.
It comprises fixing head this utility model, the bar cover, at least be provided with a counter sink on the fixing head, fixing head and bar cover are one, bar puts and is provided with the regular hexagon hole, six rib bars are arranged in the regular hexagon hole, one end in regular hexagon hole has one section female thread, one end of six rib bars is provided with thread head, the other end of six rib bars is provided with blind hole, and blind hole is provided with staple, and it is characterized in that having in the regular hexagon hole sector hole is circular hole, circular hole is provided with screw thread, blind hole is provided with female thread, the nail bar of staple be provided with blind hole on the supporting external screw thread of female thread, the ailhead of staple is provided with external screw thread, the both sides of fixing head are equipped with arc, arc is provided with counter sink, and fixing head is provided with lock hole, and lock hole is arranged on the position near staple.
This utility model is provided with external screw thread on the ailhead of staple, the formation one that interlocks of the screw thread on one section circular hole in ailhead and the regular hexagon hole avoids staple to withdraw from; Lock hole plays anti-fracture spinfunction jointly with main nail after being screwed into screw; Arc penetrates the little tuberosity that screw causes fracture, plays to reset and fixation, and used theory, its postoperative stability is better, has reduced staple and has moved back the nail phenomenon.
Description of drawings
Fig. 1 is the front view (broken section) of existing hip power screw.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is front view of the present utility model (broken section).
Fig. 4 is the right view of Fig. 3.
Among the figure, 1, fixing head, 2, staple, 3, six rib bars, 4, female thread, 5, the bar cover, 6, thread head, 7, external screw thread, 8, screw thread, 9, arc, 10, lock hole, 11, counter sink.
The specific embodiment
Embodiment: Fig. 3, shown in Figure 4, present embodiment comprises fixing head 1, bar cover 5, at least be provided with 3 counter sinks on the fixing head 1, fixing head 1 is an one with bar cover 5, bar cover 5 is provided with the regular hexagon hole, six rib bars 3 are arranged in the hexagonal hole, having a sector hole in the regular hexagon hole is circular hole, and the end that circular hole is provided with female thread 4, six rib bars 3 is provided with thread head, the other end of six rib bars 3 is provided with the light blind hole, blind hole is provided with staple 2, and blind hole is provided with female thread 8, the nail bar of staple 2 be provided with blind hole on the supporting external screw thread 8 of female thread, the ailhead of staple 2 is provided with external screw thread 7, external screw thread 7 is supporting with female thread 4, and the both sides of fixing head 1 are equipped with arc 9, and arc 9 is provided with counter sink 11, fixing head 1 is provided with lock hole 10, and lock hole 10 is arranged on the position near staple 2.
Claims (1)
1. operation on hip joint screw, comprise fixing head, the bar cover, at least be provided with a counter sink on the fixing head, fixing head and bar cover are one, bar puts and is provided with the regular hexagon hole, six rib bars are arranged in the regular hexagon hole, one end in regular hexagon hole has one section female thread, and an end of six rib bars is provided with thread head, and the other end of six rib bars is provided with blind hole, blind hole is provided with staple, it is characterized in that having a sector hole in the regular hexagon hole is circular hole, circular hole is provided with screw thread, and blind hole is provided with female thread, the nail bar of staple be provided with blind hole on the supporting external screw thread of female thread, the ailhead of staple is provided with external screw thread, and the both sides of fixing head are equipped with arc, and arc is provided with counter sink, fixing head is provided with lock hole, and lock hole is arranged on the position near staple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200580704U CN202036306U (en) | 2011-03-08 | 2011-03-08 | Hip joint operation screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200580704U CN202036306U (en) | 2011-03-08 | 2011-03-08 | Hip joint operation screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202036306U true CN202036306U (en) | 2011-11-16 |
Family
ID=44963781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200580704U Expired - Fee Related CN202036306U (en) | 2011-03-08 | 2011-03-08 | Hip joint operation screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202036306U (en) |
-
2011
- 2011-03-08 CN CN2011200580704U patent/CN202036306U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20120308 |