CN215384392U - Femoral tunnel locator for reconstruction of anterior cruciate ligament - Google Patents
Femoral tunnel locator for reconstruction of anterior cruciate ligament Download PDFInfo
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- CN215384392U CN215384392U CN202120843642.3U CN202120843642U CN215384392U CN 215384392 U CN215384392 U CN 215384392U CN 202120843642 U CN202120843642 U CN 202120843642U CN 215384392 U CN215384392 U CN 215384392U
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Abstract
The utility model provides an anterior cruciate ligament reconstruction femoral tunnel positioner which comprises a first positioning part and a second positioning part, wherein the first positioning part comprises a handle part, a straight column part and an arc-shaped part, the handle part is connected with the rear end of the straight column part, the front end of the straight column part is connected with the rear end of the arc-shaped part, the front end of the arc-shaped part is in a conical shape, the second positioning part comprises a connecting part and a positioning column, one end of the connecting part is connected onto the arc-shaped part, the other end of the connecting part is bent and extended towards the front end of the arc-shaped part to form the positioning column, the front end of the positioning column is in the conical shape, the positioning column and the arc-shaped part are arranged at intervals, and one side, close to the arc-shaped part, of the positioning column is provided with a rough pitted surface. The anterior cruciate ligament reconstruction femoral tunnel positioner can be operated by a single person, reduces matching errors, is simple and convenient to operate, and can ensure that the femoral side is accurately positioned.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a positioner for reconstructing a femoral tunnel by using an anterior cruciate ligament.
Background
According to the statistics of domestic literature, the rupture of the anterior cruciate ligament is about 0.04 percent at present, which means that about 240 ten thousand cases need surgical treatment every year, but the curative effect is uneven, and accurate drilling of the femoral tunnel is a difficult point of surgery and is an important component of the surgical effect. Currently, most of the femoral side drilling tunnels are positioned by a main surgeon by using a hollow positioner, and then a first assistant drills holes through the hollow positioner by using an electric drill. However, the operation of drilling the femoral side bone passage is complicated, and need two people to cooperate and go on, two people's operation visual angles are different, easy cooperation error, often high-speed rotatory drill bit is when not reaching the position of ideal yet, drive the locator promptly, lead to the bone passage deviation, the position that leads to the drilling of femoral side bone passage often has the bias with the operator ideal position, it is unsatisfactory to lead to the fixed effect of femoral side, the operation effect that the anterior cruciate ligament is rebuilt is influenced, and the repetition error leads to the reduction of bone mass, it is difficult to drill the ideal position, increase operation time, increase the operation risk. The unstable knee joint often occurs after operation, and even if the revision surgery is performed, the curative effect is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an anterior cruciate ligament reconstruction femoral tunnel positioner which is simple and convenient to operate and accurate in positioning.
In order to achieve the above purpose, the utility model provides an anterior cruciate ligament reconstruction femoral tunnel positioner, which comprises a first positioning part and a second positioning part, wherein the first positioning part comprises a handle part, a straight column part and an arc-shaped part, the handle part is connected with the rear end of the straight column part, the front end of the straight column part is connected with the rear end of the arc-shaped part, the front end of the arc-shaped part is in a conical shape, the second positioning part comprises a connecting part and a positioning column, one end of the connecting part is connected to the arc-shaped part, the other end of the connecting part is bent and extended towards the front end of the arc-shaped part to form the positioning column, the front end of the positioning column is in a conical shape, the positioning column and the arc-shaped part are arranged at intervals, and one side of the positioning column, which is close to the arc-shaped part, is provided with a rough surface.
Preferably, the bending angle between the arc-shaped part and the straight column part is 20 degrees.
Preferably, the first positioning portion is provided with length scales along a direction from the arc portion to the straight portion.
Preferably, the handle portion is a circular plastic cap.
Compared with the prior art, the anterior cruciate ligament reconstruction femoral tunnel locator has the advantages that the first positioning part and the second positioning part are arranged, the second positioning part can penetrate through soft tissues and can be clamped and pressed on the femoral posterior condyle, so that initial positioning is formed, a doctor can instantly press the first positioning part when finding an ideal position of the femoral side, and the first positioning part can be accurately positioned and marked at the ideal position of the femoral side. In addition, the operating space under the arthroscope is limited, and the lateral femoral condyle and the operating access form an included angle.
Drawings
Fig. 1 is a schematic structural diagram of an anterior cruciate ligament reconstruction femoral tunnel locator of the present invention.
Detailed Description
In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.
Referring to fig. 1, the anterior cruciate ligament reconstruction femoral tunnel locator 100 of the present invention includes a first locating portion 1 and a second locating portion 2. The first positioning portion 1 includes a handle portion 11, a straight column portion 12 and an arc portion 13, the handle portion 11 is connected to a rear end of the straight column portion 12, a front end of the straight column portion 12 is connected to a rear end of the arc portion 13, and a front end of the arc portion 13 is tapered. The cone-shaped front end of the arc-shaped part 13 has a depth limiting function, and when the first positioning is not ideal, the cone-shaped front end of the arc-shaped part 13 also influences subsequent accurate positioning, so that the bone tract which cannot be drilled due to the loss of bone mass cannot be caused. The depth of the tapered front end of the arc-shaped portion 13 may be 2 mm, the width may be 2 mm, and the tip may be 0.5 mm, but not limited thereto. Second location portion 2 includes connecting portion 21 and reference column 22, and the one end of connecting portion 21 is connected on arc portion 13, and the other end of connecting portion 21 is bent towards the front end direction of arc portion 13 and is extended formation reference column 22, and the front end of reference column 22 is the taper, and reference column 22 is the interval setting with arc portion 13, and one side that reference column 22 is close to arc portion 13 is equipped with rough pitted surface 221, and this rough pitted surface 221 can play the antiskid effect, guarantees the stability of second location portion 2 location. The vertical distance between the top of the front end of the arc-shaped part 13 and the positioning column 22 can be 6 mm, 7 mm or 8 mm, so that the device can be in different models and is suitable for different people. The thickness of the positioning pillars 22 may be 2 mm, but not limited thereto.
Referring to fig. 1, in the present embodiment, α represents a bending angle between the arc-shaped portion 13 and the straight column portion 12, and the bending angle between the arc-shaped portion 13 and the straight column portion 12 is 20 degrees, but not limited thereto. Specifically, the handle portion 11 is a circular plastic cap, but not limited thereto. Further, the first positioning portion 1 is provided with a length scale 14 along the direction from the arc portion 13 to the straight column portion 12. By providing the length scale 14, the insertion depth of the anterior cruciate ligament reconstruction femoral tunnel locator 100 can be observed and understood conveniently by a doctor.
In summary, the anterior cruciate ligament reconstruction femoral tunnel locator 100 of the present invention is provided with the first positioning portion 1 and the second positioning portion 2, and the second positioning portion 2 can penetrate through soft tissue and be clamped and pressed on the posterior femoral condyle, so as to form initial positioning, so that a doctor can instantly press the first positioning portion 1 when finding an ideal position of the femoral side, so as to accurately position and mark the first positioning portion 1 at the ideal position of the femoral side. In addition, the operating space under the arthroscope is limited, and the lateral femoral condyle and the operating access form an included angle, the included angle formed by the lateral femoral condyle and the operating access is adapted by arranging the arc-shaped part 13 on the first positioning part 1, so that the operation of a doctor is greatly facilitated.
The above disclosure is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the utility model, so that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the utility model.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120843642.3U CN215384392U (en) | 2021-04-22 | 2021-04-22 | Femoral tunnel locator for reconstruction of anterior cruciate ligament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120843642.3U CN215384392U (en) | 2021-04-22 | 2021-04-22 | Femoral tunnel locator for reconstruction of anterior cruciate ligament |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215384392U true CN215384392U (en) | 2022-01-04 |
Family
ID=79672578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120843642.3U Expired - Fee Related CN215384392U (en) | 2021-04-22 | 2021-04-22 | Femoral tunnel locator for reconstruction of anterior cruciate ligament |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215384392U (en) |
-
2021
- 2021-04-22 CN CN202120843642.3U patent/CN215384392U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220104 |