Knee joint anterior cruciate ligament injury measuring device

Abstract

The utility model discloses a knee joint anterior cruciate ligament injury measuring device, and relates to the technical field of medical detection instruments. Comprising a bearing plate, two fixing belts are arranged on the left side and the right side of the bearing plate, first connecting blocks are fixedly connected to the bottom ends of the left side and the right side of the bearing plate respectively, fixing rods are rotatably connected to the bottom ends of the two connecting blocks, adjusting rods are movably inserted into the lower ends of the fixing rods, fixing blocks are installed at the bottom ends of the adjusting rods, and a clamping ring is installed between the two fixing blocks; the middle of the clamping ring is in threaded connection with an electric telescopic rod, a second connecting block is installed at the output end of the electric telescopic rod, a fixing ring is movably installed at the end, away from the electric telescopic rod, of the second connecting block, a lead screw is welded to the bottom end of the clamping ring, and a supporting rod is in threaded connection with the circumferential surface of the lower end of the lead screw. Springs are movably installed in the circular grooves, limiting columns are movably installed at the opening ends of the circular grooves, and a plurality of limiting holes are formed in the outward side walls of the fixing rods.

Description

Technical Field

[0001] The utility model relates to the technical field of medical detection instruments, in particular to a device for measuring anterior cruciate ligament injury of a knee joint. Background Art

[0002] The anterior cruciate ligament originates from the anterior and medial side of the intercondylar eminence of the tibia, meets the anterior horn of the lateral meniscus, and obliquely moves posteriorly, superiorly and laterally. The fibers are attached to the medial side of the lateral femoral condyle in a fan shape. Anterior cruciate ligament injury of the knee is a relatively common sports injury. The clinical manifestations of anterior cruciate ligament injury are usually determined by pivot shift test, Lachman test and anterior drawer test. The principle is to determine whether the anterior cruciate ligament is damaged by the relative anterior displacement of the tibia. During the test, the knee joint is maintained at a certain angle to allow the physician to perform clinical testing of the anterior cruciate ligament.

[0003] Medical workers have found that the anterior cruciate ligament injury grading or tibial anterior displacement distance is an important reference for evaluating whether to take surgical treatment. During the physical examination, clinical physicians need to rely on hand feel and experience to obtain a rough qualitative judgment, so as to conduct basic quantitative examinations. Since the patient's legs are not supported by a support device, the patient's movement during the examination is very likely to cause misjudgment of the examination results, so it is difficult to achieve accurate quantitative detection. For this reason, we propose a knee anterior cruciate ligament injury measurement device. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the anterior cruciate ligament injury grading or the tibial anterior displacement distance is an important reference for evaluating whether to take surgical treatment. During the physical examination, the clinical physician needs to obtain a rough qualitative judgment by hand feeling and experience, so as to conduct a basic quantitative examination. Since the patient's legs are not supported by a supporting device, the patient's movement during the examination is very likely to cause a misjudgment of the examination result, so it is difficult to achieve accurate quantitative detection. The utility model provides a knee anterior cruciate ligament injury measurement device.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0006] A knee anterior cruciate ligament injury measuring device comprises a bearing plate, two fixing belts are arranged on the left and right sides of the bearing plate, the bottom ends of the left and right sides of the bearing plate are respectively fixedly connected with first connecting blocks, the bottom ends of the two first connecting blocks are rotatably connected with fixing rods, an adjusting rod is movably inserted inside the lower end of the fixing rod, a fixing block is installed at the bottom end of the adjusting rod, a clamping ring is installed between the two fixing blocks, an electric telescopic rod is threadedly connected to the middle part of the clamping ring, a second connecting block is installed at the output end of the electric telescopic rod, a fixing ring is movably installed at one end of the second connecting block away from the electric telescopic rod, a screw rod is welded at the bottom end of the clamping ring, a support rod is threadedly connected to the circumferential surface of the lower end of the screw rod, a support plate is fixedly connected to the bottom end of the support rod, a circular groove is provided on the outward side wall of the adjusting rod, a spring is movably installed inside the circular groove, a limiting column is movably installed on the open end of the circular groove, a plurality of limiting holes are provided on the outward side wall of the fixing rod, and the limiting column is movably inserted in the limiting hole.

[0007] Furthermore, the support plate is in the shape of a semicircular plate, and a protective cover is sheathed on the outer side of the support plate.

[0008] Furthermore, the size of the adjusting rod is consistent with the inner size of the fixing rod.

[0009] Furthermore, a layer of soft pad is provided on the inner wall of the fixing ring.

[0010] Furthermore, the size of the external thread formed on the circumferential surface of the screw rod is consistent with the size of the internal thread formed inside the support rod.

[0011] Furthermore, the diameter of the support plate is greater than the diameter of the support rod, and an anti-slip pad is provided on the lower surface of the support plate.

[0012] Furthermore, the diameter of the limiting column is consistent with the diameter of the limiting hole.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. When the utility model is in use, the patient is first allowed to sit, and then the supporting plate is placed at the bottom of the patient's thigh so that the inside of the supporting plate is in contact with the patient's thigh. Then, the limiting column is pressed from the limiting hole into the circular groove to adjust the distance between the adjusting rod and the fixing rod, so that the adjusting rod is moved with the clamping ring between the fixing blocks, so that the clamping ring is lifted and lowered with the electric telescopic rod, so that the electric telescopic rod is suitable for patients with different leg lengths with the fixing ring installed on the second connecting block. After the fixing ring fixes the patient's calf, the support rod is rotated to adjust the distance between the support rod and the screw rod, so that the support rod and the supporting plate can more stably support the clamping ring at the upper end of the screw rod. Then, when the doctor is examining the patient, the electric telescopic rod is started to rotate the electric telescopic rod with the patient's calf through the fixing ring, and the supporting plate supports the patient's thigh, so that the patient can maintain stability during the examination, thereby increasing the doctor's examination efficiency.

[0015] 2. When the utility model is in use, the shape of the supporting plate is a semicircular plate, which can make the supporting plate fit the patient's legs more closely, thereby better supporting the patient's legs. At the same time, by means of a protective cover put on the outside of the supporting plate, it can prevent the supporting plate from accidentally causing harm to the patient at the corners of the supporting plate during use, thereby increasing the safety of the supporting plate.

[0016] 3. When the utility model is in use, when there is a large gap between the patient's leg length and the support rod, the support rod can be rotated to allow the support rod to move along the screw rod to adjust the length of the support rod, thereby ensuring that the support rod can support the patient's legs and avoiding violent shaking between the screw rod and the support rod, thereby affecting the doctor's examination results. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the extension of the utility model;

[0019] Figure 3 It is a cross-sectional view of the utility model;

[0020] Figure 4 It is an enlarged view of part A of the utility model.

[0021] Figure numerals: 1. load-bearing plate; 2. fixing belt; 3. first connecting block; 4. fixing rod; 5. adjusting rod; 6. fixing block; 7. clamping ring; 8. electric telescopic rod; 9. second connecting block; 10. fixing ring; 11. screw rod; 12. support rod; 13. support plate; 14. circular groove; 15. spring; 16. limiting column; 17. limiting hole. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0023] See also Figure 1-Figure 4 The utility model provides a knee joint anterior cruciate ligament injury measuring device, comprising a bearing plate 1, two fixing belts 2 are arranged on the left and right sides of the bearing plate 1, the bottom ends of the left and right sides of the bearing plate 1 are respectively fixedly connected with first connecting blocks 3, the bottom ends of the two first connecting blocks 3 are rotatably connected with fixing rods 4, the lower ends of the fixing rods 4 are movably plugged with adjusting rods 5, the bottom ends of the adjusting rods 5 are installed with fixing blocks 6, a clamping ring 7 is installed between the two fixing blocks 6, the middle part of the clamping ring 7 is threadedly connected with an electric telescopic rod 8, and the output end of the electric telescopic rod 8 is installed with a first Two connecting blocks 9, the second connecting block 9 is movably installed with a fixing ring 10 at one end away from the electric telescopic rod 8, a screw rod 11 is welded to the bottom end of the clamping ring 7, a support rod 12 is threadedly connected to the circumferential surface of the lower end of the screw rod 11, and a support plate 13 is fixedly connected to the bottom end of the support rod 12, a circular groove 14 is provided on the outward side wall of the adjusting rod 5, a spring 15 is movably installed inside the circular groove 14, a limiting column 16 is movably installed at the open end of the circular groove 14, a plurality of limiting holes 17 are provided on the outward side wall of the fixing rod 4, and the limiting column 16 is movably inserted in the limiting hole 17.

[0024] In the present embodiment, preferably, the shape of the supporting plate 1 is a semicircular plate, and a protective cover is provided on the outer side of the supporting plate 1; the shape of the supporting plate 1 is a semicircular plate, so that the supporting plate 1 can fit the patient's legs more closely, thereby better supporting the patient's legs. At the same time, by means of the protective cover provided on the outer side of the supporting plate 1, the corners of the supporting plate 1 can be prevented from accidentally causing harm to the patient during use, thereby increasing the safety of the supporting plate 1.

[0025] In this embodiment, preferably, the size of the adjusting rod 5 is consistent with the internal size of the fixing rod 4; when the size of the adjusting rod 5 is consistent with the internal size of the fixing rod 4, the gap between the adjusting rod 5 and the fixing rod 4 can be reduced, thereby avoiding large shaking between the adjusting rod 5 and the fixing rod 4 during the process of pressing the limiting column 16 from the limiting hole 17 into the circular groove 14 and then stretching the adjusting rod 5, thereby affecting the doctor's examination results.

[0026] In this embodiment, preferably, a layer of soft pad is provided on the inner wall of the fixing ring 10; by providing a layer of soft pad on the inner wall of the fixing ring 10, the pressure of the fixing ring 10 on the patient's calf can be reduced during the process of fixing the patient's calf with the fixing ring 10, thereby making the patient more comfortable.

[0027] In this embodiment, preferably, the size of the external thread provided on the circumferential surface of the screw rod 11 is consistent with the size of the internal thread provided inside the support rod 12; when the size of the external thread provided on the circumferential surface of the screw rod 11 is consistent with the size of the internal thread provided inside the support rod 12, when there is a large difference between the patient's leg length and the support rod 12, the support rod 12 can be rotated to move along the screw rod 11 to adjust the length of the support rod 12, thereby ensuring that the support rod 12 can support the patient's legs and avoid violent shaking between the screw rod 11 and the support rod 12, thereby affecting the doctor's examination results.

[0028] In this embodiment, preferably, the diameter of the support plate 13 is larger than the diameter of the support rod 12, and an anti-slip pad is provided on the lower surface of the support plate 13; making the diameter of the support plate 13 larger than the diameter of the support rod 12, and providing an anti-slip pad on the lower surface of the support plate 13, can increase the friction between the support plate 13 and the ground, so that the support plate 13 can more stably fix the support rod 12, thereby improving the doctor's examination results.

[0029] In this embodiment, preferably, the diameter of the limiting column 16 is consistent with the diameter of the limiting hole 17; when the diameter of the limiting column 16 is consistent with the diameter of the limiting hole 17, the gap between the limiting column 16 and the limiting hole 17 can be reduced, thereby preventing the adjusting rod 5 from shaking when the limiting column 16 fixes the adjusting rod 5 inside the fixing rod 4, thereby affecting the accuracy of the doctor's detection.

[0030] The working principle and use process of the utility model are as follows: when the device is used, the patient is first allowed to sit, and then the support plate 1 is placed at the bottom of the patient's thigh, so that the inside of the support plate 1 is in contact with the patient's thigh, and then the limiting column 16 is pressed from the limiting hole 17 into the circular groove 14 to adjust the distance between the adjusting rod 5 and the fixing rod 4, so that the adjusting rod 5 moves with the clamping ring 7 between the fixing blocks 6, so that the clamping ring 7 moves with the electric telescopic rod 8, so that the electric telescopic rod 8 moves with the fixing ring 10 installed on the second connecting block 9, so that the electric telescopic rod 8 is suitable for patients with different leg lengths. After the fixing ring 10 fixes the patient's calf, the support rod 12 is rotated to adjust the distance between the support rod 12 and the screw rod 11, so that the support rod 12 and the support plate 13 can more stably support the clamping ring 7 at the upper end of the screw rod 11. Then, when the doctor examines the patient, the electric telescopic rod 8 is started to rotate the electric telescopic rod 8 with the patient's calf through the fixing ring 10, and the supporting plate 1 supports the patient's thigh, so that the patient can maintain stability during the examination, thereby increasing the doctor's examination efficiency.

[0031] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A knee anterior cruciate ligament injury measuring device, characterized in that: The invention comprises a bearing plate (1), two fixing belts (2) are arranged on the left and right sides of the bearing plate (1), the bottom ends of the left and right sides of the bearing plate (1) are respectively fixedly connected with first connecting blocks (3), the bottom ends of the two first connecting blocks (3) are rotatably connected with fixing rods (4), the lower ends of the fixing rods (4) are movably plugged with adjusting rods (5), the bottom ends of the adjusting rods (5) are installed with fixing blocks (6), a clamping ring (7) is installed between the two fixing blocks (6), the middle part of the clamping ring (7) is threadedly connected with an electric telescopic rod (8), the output end of the electric telescopic rod (8) is installed with a second connecting block (9), and the second connecting block (9) is away from A fixing ring (10) is movably mounted on one end of the electric telescopic rod (8); a screw rod (11) is welded to the bottom end of the clamping ring (7); a support rod (12) is threadedly connected to the circumferential surface of the lower end of the screw rod (11); a support plate (13) is fixedly connected to the bottom end of the support rod (12); a circular groove (14) is provided on the outward side wall of the adjusting rod (5); a spring (15) is movably mounted inside the circular groove (14); a limiting column (16) is movably mounted on the open end of the circular groove (14); a plurality of limiting holes (17) are provided on the outward side wall of the fixing rod (4); and the limiting column (16) is movably inserted into the limiting hole (17).

2. A knee joint anterior cruciate ligament injury measuring device according to claim 1, characterized in that: The bearing plate (1) is in the shape of a semicircular plate, and a protective cover is sheathed on the outer side of the bearing plate (1).

3. A knee joint anterior cruciate ligament injury measuring device according to claim 1, characterized in that: The size of the adjusting rod (5) is consistent with the internal size of the fixing rod (4).

4. The device for measuring anterior cruciate ligament injury of knee joint according to claim 1, characterized in that: The inner wall of the fixing ring (10) is provided with a layer of soft pad.

5. The device for measuring anterior cruciate ligament injury of knee joint according to claim 1, characterized in that: The size of the external thread formed on the circumferential surface of the screw rod (11) is consistent with the size of the internal thread formed inside the support rod (12).

6. The device for measuring anterior cruciate ligament injury of knee joint according to claim 1, characterized in that: The diameter of the support plate (13) is greater than the diameter of the support rod (12), and an anti-slip pad is provided on the lower surface of the support plate (13).

7. The device for measuring anterior cruciate ligament injury of knee joint according to claim 1, characterized in that: The diameter of the limiting column (16) is consistent with the diameter of the limiting hole (17).

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