CN202184793U - Extractor suitable for locking intramedullary nails in different inner diameters - Google Patents
Extractor suitable for locking intramedullary nails in different inner diameters Download PDFInfo
- Publication number
- CN202184793U CN202184793U CN2011203132748U CN201120313274U CN202184793U CN 202184793 U CN202184793 U CN 202184793U CN 2011203132748 U CN2011203132748 U CN 2011203132748U CN 201120313274 U CN201120313274 U CN 201120313274U CN 202184793 U CN202184793 U CN 202184793U
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- CN
- China
- Prior art keywords
- extractor
- inner diameters
- different inner
- locking
- screw rod
- 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 surgical appliance in the medical field and particularly discloses an extractor suitable for locking intramedullary nails in different inner diameters. The utility model aims to solve the problem in the prior that the intramedullary nail cannot be extracted as the extractor and the intramedullary nail are not matched with each other in practical use. The key point in the technical scheme includes that an outer lead screw is shaped like a truncated cone which is thin in the front and is thick in the back. The extractor can be used for extracting a locking intramedullary nail and has the advantages of wide application and convenience in use.
Description
Technical field: this utility model belongs to the strand marrow-locking inner needle extractor of the surgical instrument of medical field, particularly a kind of suitable different inner diameters.
Background technology: in the bone surgery, adopt the strand marrow-locking inner needle to fix fracture site at present.Be about to the intramedullary needle entering bone cavity that tail end has the internal thread hole, the radially locking nail hole of some axial distribution is set on the intramedullary needle, pinning passes locking nail hole and clamps in the position of needs, form fixing fracture site.Intramedullary needle need use strand marrow-locking inner needle extractor when taking out, strand marrow-locking inner needle extractor is to be formed connection by out screw rod and hook, and out screw rod is screwed into the internal thread hole of intramedullary needle tail end, knocks the hook handle again and can accomplish.The internal thread hole that will seek out out screw rod and the intramedullary needle tail end of device like this must form the interlock of inside and outside silk and could accomplish.But in practice often because extractor and intramedullary needle do not match and can't accomplish.
Summary of the invention: the purpose of this utility model is exactly the technical scheme that proposes a kind of strand marrow-locking inner needle extractor of suitable different inner diameters, exists with the solution background technology: often do not match and can't not accomplish the problem of taking out intramedullary needle because of extractor and intramedullary needle in the practice.Solving this technical problem the technical scheme that is adopted is: a kind of strand marrow-locking inner needle extractor of suitable different inner diameters, out screw rod hook handle is characterized in that out screw rod is front fine and rear thick truncated conical shape.
The beneficial effect that this utility model and prior art comparison are had is: owing to adopt technique scheme; During operation; The out screw rod of extractor is screwed into the internal thread hole of intramedullary needle tail end, because out screw rod is front fine and rear thick truncated conical shape, the strand marrow-locking inner needle that can be suitable for different inner diameters forms the interlock of inside and outside silk; Thoroughly solved the problem that often can't accomplish in the practice because extractor and intramedullary needle do not match, easy to use and improved operation efficient.
Description of drawings: Fig. 1 is the structural representation of this utility model.
The specific embodiment: with reference to figure 1, a kind of strand marrow-locking inner needle extractor of suitable different inner diameters, out screw rod 1 hook is characterized in that out screw rod 1 is front fine and rear thick truncated conical shape to 2.
Claims (1)
1. the strand marrow-locking inner needle extractor of a suitable different inner diameters, out screw rod (1) hook is characterized in that out screw rod (1) is front fine and rear thick truncated conical shape to (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203132748U CN202184793U (en) | 2011-08-20 | 2011-08-20 | Extractor suitable for locking intramedullary nails in different inner diameters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203132748U CN202184793U (en) | 2011-08-20 | 2011-08-20 | Extractor suitable for locking intramedullary nails in different inner diameters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202184793U true CN202184793U (en) | 2012-04-11 |
Family
ID=45916273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203132748U Expired - Fee Related CN202184793U (en) | 2011-08-20 | 2011-08-20 | Extractor suitable for locking intramedullary nails in different inner diameters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202184793U (en) |
-
2011
- 2011-08-20 CN CN2011203132748U patent/CN202184793U/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: 20120411 Termination date: 20120820 |