Anterior cruciate ligament sounding ruler
By designing an anterior cruciate ligament depth measuring ruler and using scale lines and bends to determine the center point of the bone tunnel, the problem of inaccurate bone tunnel location was solved, and the success rate of surgery was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2026-03-20
Smart Images
Figure CN224008492U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of medical devices, in particular to a front cross ligament depth gauge. BACKGROUND
[0002] The anterior cruciate ligament, also known as the anterior cruciate ligament, is located in the knee joint and connects the femur and the tibia. Its main function is to limit the excessive displacement of the tibia forward. It works together with other structures in the knee joint to maintain the stability of the knee joint. When high-intensity exercise is performed, the rupture of the anterior cruciate ligament is prone to occur. When the rupture occurs, the anterior cruciate ligament (ACL) reconstruction surgery under arthroscopy is usually used for treatment. The anterior cruciate ligament reconstruction surgery is considered to be an effective means for treating the rupture of the anterior cruciate ligament. In the reconstruction, a bone tunnel needs to be formed at the femur to fix the ligament. However, the position of the bone tunnel cannot be accurately positioned, and only the experience of the doctor can be used for operation. The incorrect position of the bone tunnel is one of the important factors leading to the failure of the reconstruction surgery.
[0003] In the prior art, it is inconvenient to accurately position the position of the bone tunnel, thereby leading to a high failure rate of the surgery. Therefore, the application provides a front cross ligament depth gauge to solve the above problems. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at solving the problem of inconvenient accurate positioning of the position of the bone tunnel in the prior art, thereby leading to a high failure rate of the surgery, and provides a front cross ligament depth gauge.
[0005] The front cross ligament depth gauge provided by the application adopts the following technical scheme:
[0006] A front cross ligament depth gauge comprises:
[0007] A handle;
[0008] A metal rod, one end of the metal rod is fixedly connected with the handle;
[0009] A first scale line, a second scale line and a third scale line are arranged on the outer side of the metal rod. The outer side of the handle is connected with an anti-skid pad. The metal rod is provided with a first bending section, and the angle of the first bending section is 160-170 degrees. The metal rod is provided with a second bending section, and the angle of the second bending section is 90 degrees. The lengths of the first scale line, the second scale line and the third scale line are 65 mm, 30 mm and 4 mm respectively.
[0010] In summary, the application has the following beneficial technical effects:
[0011] The far end of the metal rod is passed through the front of the tibia to the back of the tibia to hook the highest point of the cartilage edge of the lateral femoral condyle, the third scale line zero scale position is aligned with the highest point of the cartilage edge, the measuring scale is placed in the same direction as the long axis direction of the femur, the position 3mm high (4mm scale line measurement) and 12mm away (30mm scale line measurement) from the reference point is selected as the bone tunnel center point, then the positioner is used to align the center point, and the bone tunnel is opened.
[0012] The utility model discloses a positioning point of bone tunnel can be found accurately, and then through the positioner, the bone tunnel is opened, and the structure is simple, convenient to use, improves the quality of bone tunnel, and greatly reduces the operation failure rate. BRIEF DESCRIPTION OF DRAWINGS
[0013] Fig. 1 A front cross ligament depth gauge is provided in the utility model, and the front cross ligament depth gauge comprises a handle and a metal rod.
[0014] Fig. 2 A front cross ligament depth gauge is provided in the utility model, and the front cross ligament depth gauge comprises a handle and a metal rod.
[0015] Fig. 3 A front cross ligament depth gauge is provided in the utility model, and the front cross ligament depth gauge comprises a handle and a metal rod.
[0016] Mark: 1, handle;2, metal rod;3, first scale line;4, second scale line;5, third scale line;6, first bending section;7, second bending section. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0018] EMBODIMENT
[0019] Refer to Figs. 1-3 A front cross ligament depth gauge, comprising:
[0020] Handle 1;
[0021] Metal rod 2, one end of metal rod 2 is fixedly connected with handle 1;
[0022] The first scale line 3, the second scale line 4 and the third scale line 5 are arranged on the outer side of the metal rod 2, the outer side of the handle 1 is connected with a non-slip mat, the metal rod 2 is provided with a first bending section 6, the angle of the first bending section 6 is 160-170 degrees, the metal rod 2 is provided with a second bending section 7, the angle of the second bending section 7 is 90 degrees, and the lengths of the first scale line 3, the second scale line 4 and the third scale line 5 are 65 mm, 30 mm and 4 mm respectively.
[0023] The implementation principle of the ACL depth gauge is as follows: when used, first, make the knee joint flex 90 degrees, and then, in this body position and angle, take the highest point of the posterior cartilage margin of the femoral condyle as a reference point, use the distal end of the metal rod 2 to hook the highest point of the posterior cartilage margin of the femoral condyle by penetrating the tibia from the front to the back, make the zero scale position of the third scale line 5 flush with the upper side of the highest point of the posterior cartilage margin, place the measuring gauge in the same direction as the long axis of the femur, and select a position 3 mm high (measured by the 4 mm scale line) and 12 mm away (measured by the 30 mm scale line) from the reference point as the center point of the bone tunnel, then use the positioner to align the center point, and open the bone tunnel, so that the position of the bone tunnel is the best hole position.
[0024] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. An anterior cruciate ligament depth measuring ruler, characterized in that: include: Handle (1); Metal rod (2), one end of which is fixedly connected to handle (1); The first scale line (3), the second scale line (4), and the third scale line (5) are all set on the outside of the metal rod (2). The metal rod (2) is provided with a first bending section (6) with an angle of 160°-170°. The metal rod (2) is provided with a second bending section (7) with an angle of 90°. The lengths of the first scale line (3), the second scale line (4), and the third scale line (5) are 65mm, 30mm, and 4mm, respectively.
2. The anterior cruciate ligament depth measuring ruler according to claim 1, characterized in that: The outer side of the handle (1) is connected to an anti-slip pad.