CN202960735U - Self-locking bone nail - Google Patents
Self-locking bone nail Download PDFInfo
- Publication number
- CN202960735U CN202960735U CN 201220661175 CN201220661175U CN202960735U CN 202960735 U CN202960735 U CN 202960735U CN 201220661175 CN201220661175 CN 201220661175 CN 201220661175 U CN201220661175 U CN 201220661175U CN 202960735 U CN202960735 U CN 202960735U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- self
- nail
- locating pin
- alignment pin
- 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 belongs to a medical component and discloses a self-locking bone nail which is characterized in that a center cavity extending to the upper end of a nail cap is formed in a screw rod; the side wall of the screw rod is provided with a lateral hole; a locating pin is placed in the lateral hole; the outer end of the locating pin is provided with a return inclined plane, and the inner end of the locating pin is provided with an outlet inclined plane; and when the outer end of the locating pin is in level with the outer side wall of the screw rod, the inner end of the locating pin is positioned in the center cavity. The self-locking bone nail has he advantages of reasonable structural design, self-locking function, convenience in operation, good fixation effect and remarkable practicability.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, relates in particular to a kind of self-locking nail.
Background technology
According to the sclerotin situation, for increase nail and sclerotin in conjunction with dynamics, some nail has auto-lock function, the present similar setscrew of self-locking Bone nail structure has installations, dismantles inconvenient shortcoming, and fixed effect is undesirable.
The utility model content
For overcoming above-mentioned technical problem, this utility model provides a kind of reasonable in design, installation, convenient disassembly, and the self-locking nail of good fixing effect.
For realizing above-mentioned technical purpose, this utility model adopts following scheme: a kind of self-locking nail, comprise screw rod and the head of a nail, it is characterized in that: be provided with a center cavity that extends to head of a nail upper end in screw rod, the screw rod sidewall is provided with side opening, is placed with alignment pin in side opening, the alignment pin outer end is provided with the return inclined-plane, the inner end is provided with out an inclined-plane, and when the alignment pin outer end was concordant with the screw rod lateral wall, the inner end was positioned at center cavity.
This utility model beneficial effect is: be the column instrument of wedge shape by the lower end, support out inclined-plane and drive an alignment pin and outwards move, make return inclined-plane one end stretch out screw rod, and insert in sclerotin; During the dismounting nail, the rotation nail, alignment pin moves inward under the ordering about on return inclined-plane, finally makes the outer end concordant with the screw rod outer wall.Its reasonable in design, installation, convenient disassembly, good fixing effect has significant practicality.
Description of drawings
Fig. 1 is this utility model structural representation;
Fig. 2 is the structural representation of alignment pin when stretching out.
The specific embodiment
Shown in accompanying drawing 1,2, screw rod 1 upper end is provided with the head of a nail 7, be provided with a center cavity 2 that extends to the head of a nail 7 upper ends in screw rod 1, screw rod 1 sidewall is provided with side opening, be placed with alignment pin 3 in side opening, alignment pin 3 outer ends are provided with return inclined-plane 6, and the inner end is provided with out an inclined-plane 5, when concordant, the inner end is positioned at center cavity 2 when alignment pin 3 outer ends and screw rod 1 lateral wall.Use column instrument 4 to support out an inclined-plane 5, alignment pin 3 outwards moves, and during rotary screw 1, return inclined-plane 6 orders about alignment pin 3 to the interior movement of screw rod 1.
Claims (1)
1. self-locking nail, comprise screw rod and the head of a nail, it is characterized in that: be provided with a center cavity that extends to head of a nail upper end in screw rod, the screw rod sidewall is provided with side opening, be placed with alignment pin in side opening, the alignment pin outer end is provided with the return inclined-plane, and the inner end is provided with out an inclined-plane, when the alignment pin outer end was concordant with the screw rod lateral wall, the inner end was positioned at center cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220661175 CN202960735U (en) | 2012-11-23 | 2012-11-23 | Self-locking bone nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220661175 CN202960735U (en) | 2012-11-23 | 2012-11-23 | Self-locking bone nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202960735U true CN202960735U (en) | 2013-06-05 |
Family
ID=48501874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220661175 Expired - Fee Related CN202960735U (en) | 2012-11-23 | 2012-11-23 | Self-locking bone nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202960735U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104287819A (en) * | 2014-10-09 | 2015-01-21 | 中国人民解放军第四军医大学 | Medical pedicle screw component with telescopic double thread and capable of resisting pullout |
| CN106691570A (en) * | 2017-01-22 | 2017-05-24 | 北京爱康宜诚医疗器材有限公司 | Bolt |
| CN115444531A (en) * | 2022-08-10 | 2022-12-09 | 郭建利 | Proximal tibia posterolateral dissection locking device |
| CN117029770A (en) * | 2023-10-09 | 2023-11-10 | 山东省国土空间生态修复中心(山东省地质灾害防治技术指导中心、山东省土地储备中心) | Ground subsidence data monitoring device for high geothermal exploitation |
| CN117257429A (en) * | 2023-11-21 | 2023-12-22 | 苏州爱得科技发展股份有限公司 | pedicle screw |
-
2012
- 2012-11-23 CN CN 201220661175 patent/CN202960735U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104287819A (en) * | 2014-10-09 | 2015-01-21 | 中国人民解放军第四军医大学 | Medical pedicle screw component with telescopic double thread and capable of resisting pullout |
| CN106691570A (en) * | 2017-01-22 | 2017-05-24 | 北京爱康宜诚医疗器材有限公司 | Bolt |
| CN106691570B (en) * | 2017-01-22 | 2020-11-06 | 北京爱康宜诚医疗器材有限公司 | Screw nail |
| CN115444531A (en) * | 2022-08-10 | 2022-12-09 | 郭建利 | Proximal tibia posterolateral dissection locking device |
| CN117029770A (en) * | 2023-10-09 | 2023-11-10 | 山东省国土空间生态修复中心(山东省地质灾害防治技术指导中心、山东省土地储备中心) | Ground subsidence data monitoring device for high geothermal exploitation |
| CN117257429A (en) * | 2023-11-21 | 2023-12-22 | 苏州爱得科技发展股份有限公司 | pedicle screw |
| CN117257429B (en) * | 2023-11-21 | 2024-01-30 | 苏州爱得科技发展股份有限公司 | Pedicle screw |
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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: 20130605 Termination date: 20131123 |