CN209450639U - Anti- rotation screw - Google Patents
Anti- rotation screw Download PDFInfo
- Publication number
- CN209450639U CN209450639U CN201822041068.0U CN201822041068U CN209450639U CN 209450639 U CN209450639 U CN 209450639U CN 201822041068 U CN201822041068 U CN 201822041068U CN 209450639 U CN209450639 U CN 209450639U
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- Prior art keywords
- bar portion
- cylinder bar
- rear end
- screwed
- convenient
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Abstract
This application discloses a kind of anti-rotation screws, including integrally formed cylinder bar portion, the cylinder bar portion smooth outer surface, cylinder bar portion front end is formed with arc-shaped tip, the cylinder bar portion back end outer surface is formed with fine thread, and the cylinder bar portion rear end face offers interior hexagonal groove.The utility model has the advantage of front end circular arc tips, bar portion smooth outer surface, and guiding performance is stronger when being screwed into, be screwed into facilitate it is convenient；Rear end fine thread design further such that be screwed into it is convenient；Hexagonal facilitates the use of tool in rear end.
Description
Technical field
This application involves bone surgery, in particular to a kind of anti-rotation screw.
Background technique
Intramedullary nail needs that nail is effectively prevent to move in vivo, moves back nail as a kind of implant.
Summary of the invention
The purpose of the present invention is to provide a kind of anti-rotation screw, fixed intramedullary nail prevents lag screw from sliding in vivo.
To achieve the above object, the present invention provides the following technical solutions.
The embodiment of the present application discloses a kind of anti-rotation screw, including integrally formed cylinder bar portion, outside the cylinder bar portion
Surface is smooth, and cylinder bar portion front end is formed with arc-shaped tip, and the cylinder bar portion back end outer surface is formed with fine thread,
The cylinder bar portion rear end face offers interior hexagonal groove.
Compared with the prior art, the advantages of the present invention are as follows front end circular arc tip, bar portion smooth outer surface, guiding when being screwed into
Property is stronger, be screwed into facilitate it is convenient；Rear end fine thread design further such that be screwed into it is convenient；Hexagonal facilitates making for tool in rear end
With.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in application, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 show the stereoscopic schematic diagram of anti-rotation screw in the specific embodiment of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out detailed retouch
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, those of ordinary skill in the art's every other implementation obtained without making creative work
Example, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As shown in connection with fig. 1, anti-rotation screw, including integrally formed cylinder bar portion 100,100 smooth outer surface of cylinder bar portion,
100 front end of cylinder bar portion is formed with arc-shaped tip 110, and 100 back end outer surface of cylinder bar portion is formed with fine thread 120, cylinder
100 rear end face of bar portion offers interior hexagonal groove 130.
Front end circular arc tip, bar portion smooth outer surface, guiding performance is stronger when being screwed into, be screwed into facilitate it is convenient；Rear end fine thread
Design further such that be screwed into it is convenient；Hexagonal facilitates the use of tool in rear end.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection scope of the application.
Claims (1)
1. a kind of anti-rotation screw, which is characterized in that including integrally formed cylinder bar portion (100), the cylinder bar portion (100) is outside
Surface is smooth, and cylinder bar portion (100) front end is formed with arc-shaped tip (110), cylinder bar portion (100) rear end appearance
Face is formed with fine thread (120), and cylinder bar portion (100) rear end face offers interior hexagonal groove (130).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822041068.0U CN209450639U (en) | 2018-12-06 | 2018-12-06 | Anti- rotation screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822041068.0U CN209450639U (en) | 2018-12-06 | 2018-12-06 | Anti- rotation screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209450639U true CN209450639U (en) | 2019-10-01 |
Family
ID=68039979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822041068.0U Active CN209450639U (en) | 2018-12-06 | 2018-12-06 | Anti- rotation screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209450639U (en) |
-
2018
- 2018-12-06 CN CN201822041068.0U patent/CN209450639U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |