CN203059874U - Extrusion screw with sheath - Google Patents
Extrusion screw with sheath Download PDFInfo
- Publication number
- CN203059874U CN203059874U CN 201220697265 CN201220697265U CN203059874U CN 203059874 U CN203059874 U CN 203059874U CN 201220697265 CN201220697265 CN 201220697265 CN 201220697265 U CN201220697265 U CN 201220697265U CN 203059874 U CN203059874 U CN 203059874U
- Authority
- CN
- China
- Prior art keywords
- sheath
- screw
- side wing
- extrusion screw
- arthroscope
- 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 - Lifetime
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Abstract
The utility model aims to provide an extrusion screw with a sheath to fix and reconstruct anterior cruciate double ligaments under an arthroscope. The extrusion screw with the sheath is convenient to use and reliable, and comprises the sheath and the screw capable of being inserted in the sheath, wherein the sheath comprises two side wing plates which are connected into a whole, the included angle between the two side wing plates is an acute angle, baffles are arranged at free sides of the two side wing plates, and a groove body used for containing a muscle tendon is arranged at the outer side of the each side wing plate. In the process of an operation, the muscle tendons are respectively placed in the groove bodies at first and then are isolated at two sides of the sheath by utilizing the sheath, the screw is inserted in the sheath, the sheath is expanded, the sheath can be prevented from moving freely by combining the baffles, and therefore the two bundles of muscle tendons are fixed, and the extrusion screw with the sheath is quite suitable for reconstruction of the anterior cruciate double ligaments under the arthroscope. A linear or crossed pattern is usually arranged at the top face of the screw, the screw can be directly screwed into the sheath by utilizing a screw driver, and threads of the screw prevent the screw from falling off the sheath.
Description
Technical field
This utility model belongs to technical field of medical instruments, specially refers to a kind of for the preceding pair band sheath extrusion screw of ligaments reconstruction that intersects under the arthroscope.
Background technology
The two ligaments of preceding intersection need be divided into two bundles when two ligaments that intersect before under the arthroscope are rebuild, in this process, must utilize apparatus that tendon is fixed, move with the position of avoiding tendon, and then guarantee patient's reliable recovery.
Summary of the invention
The purpose of this utility model be propose a kind of easy to use, be with the sheath extrusion screw reliably, to intersect fixing that two ligaments rebuild before being used under the arthroscope.
Band sheath extrusion screw of the present utility model comprises sheath and the screw that can insert in the sheath, and described sheath comprises two side wings that connect as one, and the angle between described two side wings is acute angle, and the free side of described two side wings is provided with relative baffle plate; The outside of described side wing is provided be used to the cell body that holds tendon.
When operation, at first tendon is put into cell body, thereby utilize sheath tendon to be isolated from the both sides of sheath, then screw is inserted in the sheath, make the sheath expansion, can prevent that in conjunction with baffle plate sheath from moving freely, thereby the two-beam tendon is fixed, be highly suitable for the two ligaments reconstructions of preceding intersection under the arthroscope.The end face of screw generally all is provided with a word or cross decorative pattern, adopt screwdriver directly screw to be screwed in the sheath, and the screw thread of screw can avoid screw to deviate from sheath.
Further, described screw and sheath are made for the polylactic acid material, and be in light weight, and certain elasticity is arranged.
Band sheath extrusion screw of the present utility model is simple in structure, easy to use, and fixed effect is reliable, is suitable for very much preceding the fixing of two ligaments reconstructions that intersect under the arthroscope.
Description of drawings
Fig. 1 is the user mode figure of band sheath extrusion screw of the present utility model.
Fig. 2 is the structural representation of sheath.
Fig. 3 is the side view of screw.
The specific embodiment
Contrast accompanying drawing below, by the description to embodiment, the effect of the mutual alignment between the shape of the specific embodiment of the present utility model such as related each member, structure, the each several part and annexation, each several part and operation principle etc. are described in further detail.
Embodiment 1:
As shown in the figure, the band sheath extrusion screw of present embodiment comprises sheath 1 and the screw 2 that can insert in the sheath 1, and sheath 1 comprises that the angle between 3, two side wings 3 of two side wings that connect as one is acute angle, and the free side of described two side wings 3 is provided with relative baffle plate 4; The outside of side wing 3 is provided be used to the cell body 5 that holds tendon.
The end face of screw 2 is provided with the cross decorative pattern, adopt screwdriver directly screw 2 to be screwed in the sheath 1, and the screw thread 7 of screw 2 can avoid screw 2 to deviate from sheath 1.
When operation, at first tendon 6 is put into cell body 5, thereby utilize sheath 1 tendon 6 to be isolated from the both sides of sheath 1, then screw 2 is inserted in the sheath 1, make sheath 12 expansions, can prevent that in conjunction with baffle plate 4 sheath 1 from moving freely, thereby the two-beam tendon is fixed, be highly suitable for the two ligaments reconstructions of preceding intersection under the arthroscope.
Claims (2)
1. a band sheath extrusion screw is characterized in that comprising sheath and can screw in the interior screw of sheath, and described sheath comprises two side wings that connect as one, and the angle between described two side wings is acute angle, and the free side of described two side wings is provided with relative baffle plate; The outside of described side wing is provided be used to the cell body that holds tendon.
2. band sheath extrusion screw according to claim 1 is characterized in that described screw and sheath make for the polylactic acid material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220697265 CN203059874U (en) | 2012-12-17 | 2012-12-17 | Extrusion screw with sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220697265 CN203059874U (en) | 2012-12-17 | 2012-12-17 | Extrusion screw with sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203059874U true CN203059874U (en) | 2013-07-17 |
Family
ID=48758705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220697265 Expired - Lifetime CN203059874U (en) | 2012-12-17 | 2012-12-17 | Extrusion screw with sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203059874U (en) |
-
2012
- 2012-12-17 CN CN 201220697265 patent/CN203059874U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221118 Address after: 510515 No. 1838, Guangzhou Avenue, Guangzhou, Guangdong Patentee after: NANFANG HOSPITAL, SOUTHERN MEDICAL University Address before: 510515 No. 1838, Guangzhou Avenue, Guangzhou, Guangdong Patentee before: Shi Zhanjun Patentee before: Zhao Liang Patentee before: Wang Jian |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |