Long and short leg tester

Abstract

The utility model provides a long and short leg tester, and relates to the field of medical equipment. Comprising a test platform; the positioning mechanism comprises a leg root positioning assembly and an ankle positioning assembly, the leg root positioning assembly is slidably arranged on the test platform and corresponds to one side of the thigh root, the ankle positioning assembly is slidably arranged on the test platform and corresponds to one side of the ankle, and the ankle positioning assembly and the leg root positioning assembly are located on the same axis parallel to the axial direction of the leg; the fixing assembly comprises a plurality of bandages, one ends of the bandages are connected to the leg root positioning assembly and the ankle positioning assembly respectively, connecting pieces are arranged on the opposite sides, corresponding to the leg root positioning assembly and the ankle positioning assembly, of the testing platform, and the connecting pieces are detachably connected with the other ends of the bandages; the distance testing assembly comprises a first detection piece and a second detection piece, the first detection piece is arranged on the leg root positioning assembly, and the second detection piece is arranged on the ankle positioning assembly. Whether the patient has the long and short leg phenomenon or not can be rapidly and accurately detected, and the long and short leg defect can be found as soon as possible and corrected in time.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment, and more specifically, to a leg length discrepancy tester. Background Technology

[0002] Clinically, many patients experience leg length discrepancy due to postural problems. These discrepancies are often caused by long-term poor habits, such as incorrect walking, squatting, or sitting postures, without the patients being aware of it. This persistent leg length discrepancy, in turn, affects the posture of the spine and pelvis, creating a vicious cycle.

[0003] However, leg length discrepancy is not easily detected by visual inspection in its early stages, and it becomes difficult to correct in its later, more severe forms. Early detection and correction of problems in posture, skeletal structure, and physical development are crucial for promoting the healthy physical development of adolescents. Utility Model Content

[0004] The purpose of this invention is to provide a leg length discrepancy tester that can quickly and accurately detect whether a patient has a leg length discrepancy, detect the defect early, and correct it in a timely manner.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A leg length discrepancy testing device, comprising:

[0007] The testing platform is designed for patients to lie flat.

[0008] The positioning mechanism has two sets, each corresponding to the patient's legs. The positioning mechanism includes a leg root positioning component and an ankle positioning component. The leg root positioning component is slidably disposed on the test platform and corresponds to the thigh root side. The ankle positioning component is slidably disposed on the test platform and corresponds to the ankle side. The ankle positioning component and the leg root positioning component are located on the same axis parallel to the leg axis.

[0009] The fixing component includes multiple straps, one end of each strap is connected to the leg root positioning component and the ankle positioning component respectively, and the test platform is provided with a connector on the opposite side of the leg root positioning component and the ankle positioning component. The connector is detachably connected to the other end of the strap.

[0010] A distance testing component, comprising a first detection element and a second detection element, wherein the first detection element is disposed on the leg root positioning component and the second detection element is disposed on the ankle positioning component.

[0011] Furthermore, in this utility model, the testing platform includes an upper body support and a leg support. Two leg supports are provided and are arranged at intervals relative to each other at one end of the upper body support. The leg supports are integrally connected to the upper body support.

[0012] Furthermore, in this invention, the top surface of the leg support portion is provided with a groove adapted to the shape of the leg.

[0013] Furthermore, in this invention, the depth of the groove is 1cm-2cm.

[0014] Furthermore, in this utility model, the leg root positioning component includes a first slider and a first elastic positioning plate. The first slider is slidably disposed in a first groove opened in the test platform; the first elastic positioning plate is slidably disposed on the side of the first slider facing the thigh root through an elastic element.

[0015] The ankle positioning component includes a second slider and a second elastic positioning plate. The second slider is slidably disposed in a second groove opened in the test platform. The second elastic positioning plate is slidably disposed on the ankle-facing side of the second slider through an elastic element.

[0016] Furthermore, in this invention, the first elastic positioning plate and the second elastic positioning plate are provided with pressure sensors on the side facing the leg.

[0017] Furthermore, in this utility model, both the first detection element and the second detection element are positioners, and the pressure sensor and the positioner are electrically connected to the terminal controller and connected to the display screen.

[0018] Furthermore, in this utility model, the first detection element is an infrared emitting tube, which is fixed to the side of the first slider away from the leg; the second detection element is an infrared receiving tube, which is fixed to the side of the second slider away from the leg, and the infrared emitting tube and the infrared receiving tube are opposite to each other; the infrared emitting tube and the infrared receiving tube are respectively electrically connected to the terminal controller and connected to the display screen.

[0019] Furthermore, in this utility model, one end of each of the multiple straps is fixedly connected to the first elastic positioning plate and the second elastic positioning plate, and the other end of the strap is provided with a hook; the connector is provided with a hook groove, and the hook is hooked into the hook groove.

[0020] Furthermore, in this utility model, a knee joint positioning component is slidably provided in the second slide groove. The knee joint positioning component includes a third slider and a third elastic positioning plate. The third slider is slidably connected to the second slide groove. The third elastic positioning plate is slidably passed through the third slider near the leg side by an elastic element. The third elastic positioning plate is connected to the strap.

[0021] This utility model has at least the following advantages or beneficial effects:

[0022] This invention uses a leg root positioning component and an ankle positioning component to locate the groin and ankle of both legs respectively. Multiple straps are installed on the leg root and ankle positioning components. After the patient lies flat on the testing platform and is positioned, the straps fix the legs to prevent displacement and inaccurate testing. First and second detection elements are respectively set on the leg root and ankle positioning components to detect the distance between them, thereby obtaining the length of both legs and determining whether the patient has leg length discrepancy. This application can quickly and accurately detect whether a patient has leg length discrepancy, enabling early detection and timely correction of the defect. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of the leg length discrepancy tester provided in the embodiments of this application;

[0025] Figure 2 For this application Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0026] Figure 3 For this application Figure 2 Enlarged schematic diagram of the structure at point B;

[0027] Figure 4 This is a cross-sectional view of the ankle positioning component provided in an embodiment of this application.

[0028] Icons: 1-Test platform, 11-Connector, 12-Groove, 13-First slide, 14-Second slide, 2-Leg root positioning component, 21-First slider, 22-First elastic positioning plate, 3-Ankle positioning component, 31-Second slider, 32-Second elastic positioning plate, 33-Elastic component, 4-Knee joint positioning component, 5-Strap, 6-First detection component, 7-Second detection component. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] Example

[0032] Please refer to Figures 1-4 The figure shown is a schematic diagram of the leg length and length tester in an embodiment of this utility model;

[0033] This embodiment provides a leg length discrepancy tester, including:

[0034] Test platform 1 is used for patients to lie flat;

[0035] The positioning mechanism has two sets, each corresponding to the patient's two legs. The positioning mechanism includes a leg root positioning component 2 and an ankle positioning component 3. The leg root positioning component 2 is slidably disposed on the test platform 1 and corresponds to the thigh root side. The ankle positioning component 3 is slidably disposed on the test platform 1 and corresponds to the ankle side. The ankle positioning component 3 and the leg root positioning component 2 are located on the same axis parallel to the leg axis.

[0036] The fixing component includes multiple straps 5, one end of each strap 5 is connected to the leg root positioning component 2 and the ankle positioning component 3 respectively. The test platform 1 is provided with a connector 11 on the opposite side of the leg root positioning component 2 and the ankle positioning component 3. The connector 11 is detachably connected to the other end of the strap 5.

[0037] The distance testing component includes a first detection element 6 and a second detection element 7. The first detection element 6 is located on the leg root positioning component 2, and the second detection element 7 is located on the ankle positioning component 3.

[0038] The leg length discrepancy tester of this exemplary embodiment will now be further described.

[0039] In some embodiments of this application, the aforementioned testing platform 1 is used for a patient to lie flat and includes an upper body support and a leg support. Two leg supports are provided and spaced apart from each other at one end of the upper body support, and the leg supports are integrally connected to the upper body support. When the patient lies flat on the testing platform 1, both legs are placed on the two leg supports. The bottom of the testing platform 1 is also provided with a support column for supporting the testing platform 1.

[0040] In a preferred embodiment, the top surface of the leg support has a groove 12 adapted to the shape of the leg, and the depth of the groove 12 is 1cm-2cm. By providing the groove 12, the patient's leg can be initially positioned, and rotation or displacement of the leg can be prevented. The shallow depth of the groove 12 (1cm-2cm) allows the ankle to be exposed when the leg is placed in the groove 12, facilitating testing.

[0041] In some embodiments of this application, the positioning mechanism is provided in two sets, each corresponding to the patient's two legs. The two sets of positioning mechanisms are used to position the two legs respectively. The positioning mechanism includes a leg root positioning component 2 and an ankle positioning component 3. The leg root positioning component 2 is slidably disposed on the test platform 1 and corresponds to the side of the thigh root, and is used to position the thigh root. The ankle positioning component 3 is slidably disposed on the test platform 1 and corresponds to the side of the ankle, and is used to position the ankle. The ankle positioning component 3 and the leg root positioning component 2 are located on the same axis parallel to the leg axis. Being on the same axis facilitates the detection of the distance between the two.

[0042] In a preferred embodiment, the leg root positioning component 2 includes a first slider 21 and a first elastic positioning plate 22. The first slider 21 is slidably disposed within a first groove 13 opened in the test platform 1. The first elastic positioning plate 22 is slidably disposed through an elastic element 33 on the side of the first slider 21 facing the thigh root. The ankle positioning component 3 includes a second slider 31 and a second elastic positioning plate 32. The second slider 31 is slidably disposed within a second groove 14 opened in the test platform 1. The second elastic positioning plate 32 is slidably disposed through an elastic element 33 on the side of the second slider 31 facing the ankle. The elastic element 33 is a spring, and multiple springs can be arranged side-by-side to improve stability. By sliding the first slider 21 and the second slider 31 along the leg axis, the positions of the first slider 21 and the second slider 31 can be adjusted, thus making it suitable for testing patients with different leg lengths. The first elastic positioning plate 22 and the second elastic positioning plate 32 can respectively press against the patient's thigh root and ankle, making the leg width range adjustable and suitable for patients with different leg thicknesses. It should be noted that, since the ankle gradually narrows from the upper thigh at the position of the test platform 1, the top widths of the first slider 21 and the second slider 31 can be set differently, and the lengths of the first elastic positioning plate 22 and the second elastic positioning plate 32 can be set differently to adapt to the positioning and fixation of the ankle.

[0043] In some embodiments of this application, the aforementioned fixing component includes multiple straps 5, one end of which is connected to the leg root positioning component 2 and the ankle positioning component 3, respectively. A connector 11 is provided on the opposite side of the test platform 1 corresponding to the leg root positioning component 2 and the ankle positioning component 3. The connector 11 is detachably connected to the other end of the straps 5. The straps 5 are elastic straps. After the leg root positioning component 2 and the ankle positioning component 3 are moved to a suitable position, they can be fixed by stretching the straps 5 to the other side and connecting them to the connector 11, thus preventing slippage.

[0044] In some embodiments of this application, the distance testing component includes a first detection element 6 and a second detection element 7. The first detection element 6 is disposed on the leg root positioning component 2, and the second detection element 7 is disposed on the ankle positioning component 3. By using the first detection element 6 and the second detection element 7, the distance between the leg root positioning component 2 and the ankle positioning component 3 is detected respectively, thereby obtaining the length of the two legs. If the lengths are inconsistent, it can be determined that the legs are of different lengths.

[0045] In a preferred embodiment, the first elastic positioning plate 22 and the second elastic positioning plate 32 are equipped with pressure sensors facing the leg. The first detection element 6 and the second detection element 7 are both positioners. The pressure sensors and positioners are electrically connected to the terminal controller and connected to the display screen. By modeling the dimensions of the test platform 1 and the leg root positioning component 2 and the ankle positioning component 3, when the two positioners move to the fixed position and are fixed by the strap 5 along with the leg root positioning component 2 and the ankle positioning component 3, the pressure sensors detect pressure data, thereby obtaining the location of the pressure data, and thus the distance between the two positioners can be obtained.

[0046] In a preferred embodiment, the first detection element 6 is an infrared emitting tube, fixed to the side of the first slider 21 away from the leg; the second detection element 7 is an infrared receiving tube, fixed to the side of the second slider 31 away from the leg, with the infrared emitting tube and the infrared receiving tube facing each other; the infrared emitting tube and the infrared receiving tube are electrically connected to the terminal controller and connected to the display screen respectively. Alternatively, distance detection can be performed using an infrared ranging sensor; that is, when the pressure sensor detects pressure data, the infrared emitting tube emits infrared light, and the infrared receiving tube receives the infrared light, thus obtaining the distance between the two, and consequently, the leg length data.

[0047] In a preferred embodiment, one end of each of the multiple straps 5 is fixedly connected to the first elastic positioning plate 22 and the second elastic positioning plate 32, thus securing them tightly to the patient's leg. The other end of each strap 5 is provided with a hook. The connector 11 has a hook groove, into which the hook engages. The connector 11 is positioned along the length of the test platform 1 on its side wall, with the hook groove located at the bottom. When the straps 5 are stretched to this side, the hook can be directly hooked into the hook groove, making assembly and disassembly convenient and quick.

[0048] In a preferred embodiment, a knee joint positioning component 4 is also slidably disposed within the second slide groove 14. The knee joint positioning component 4 includes a third slider and a third elastic positioning plate. The third slider is slidably connected to the second slide groove, and the third elastic positioning plate is slidably disposed on the side of the third slider near the leg via an elastic element 33. A strap 5 is connected to the third elastic positioning plate. By setting the third slider and the third elastic positioning plate, the knee joint of the leg can be fixed, avoiding inaccurate testing caused by leg bending. It should be noted that no structure is provided on the side of the third slider away from the leg to avoid obstructing infrared distance detection.

[0049] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A leg length discrepancy testing instrument, characterized in that, include: The testing platform is designed for patients to lie flat. The positioning mechanism has two sets, each corresponding to the patient's two legs. The positioning mechanism includes a leg root positioning component and an ankle positioning component. The leg root positioning component is slidably disposed on the test platform and corresponds to the thigh root side. The ankle positioning component is slidably disposed on the test platform and corresponds to the ankle side. The ankle positioning component and the leg root positioning component are located on the same axis parallel to the leg axis. The fixing component includes multiple straps, one end of each strap is connected to the leg root positioning component and the ankle positioning component respectively, and the test platform is provided with a connector on the opposite side of the leg root positioning component and the ankle positioning component. The connector is detachably connected to the other end of the strap. A distance testing component, comprising a first detection element and a second detection element, wherein the first detection element is disposed on the leg root positioning component and the second detection element is disposed on the ankle positioning component.

2. The leg length discrepancy tester according to claim 1, characterized in that, The test platform includes an upper body support and a leg support. There are two leg supports, which are arranged at intervals relative to each other at one end of the upper body support. The leg supports are integrally connected to the upper body support.

3. The leg length discrepancy tester according to claim 2, characterized in that, The top surface of the leg support is provided with a groove that matches the shape of the leg.

4. The leg length discrepancy tester according to claim 3, characterized in that, The depth of the groove is 1cm-2cm.

5. The leg length discrepancy tester according to claim 1 or 4, characterized in that, The leg root positioning component includes a first slider and a first elastic positioning plate. The first slider is slidably disposed in a first groove opened in the test platform. The first elastic positioning plate is slidably disposed on the side of the first slider facing the thigh root through an elastic element. The ankle positioning component includes a second slider and a second elastic positioning plate. The second slider is slidably disposed in a second groove opened in the test platform. The second elastic positioning plate is slidably disposed on the ankle-facing side of the second slider through an elastic element.

6. The leg length discrepancy tester according to claim 5, characterized in that, Pressure sensors are provided on the leg-facing side of the first and second elastic positioning plates.

7. The leg length discrepancy tester according to claim 6, characterized in that, Both the first and second detection components are positioners. The pressure sensor and the positioner are electrically connected to the terminal controller and connected to the display screen, respectively.

8. The leg length discrepancy tester according to claim 6, characterized in that, The first detection element is an infrared emitting tube, which is fixed to the side of the first slider away from the leg; the second detection element is an infrared receiving tube, which is fixed to the side of the second slider away from the leg, and the infrared emitting tube and the infrared receiving tube are opposite to each other; the infrared emitting tube and the infrared receiving tube are electrically connected to the terminal controller and connected to the display screen respectively.

9. The leg length discrepancy tester according to claim 5, characterized in that, One end of each of the multiple straps is fixedly connected to the first elastic positioning plate and the second elastic positioning plate, and the other end of the strap is provided with a hook; the connector is provided with a hook groove, and the hook is hooked into the hook groove.

10. The leg length discrepancy tester according to claim 9, characterized in that, The second slide groove is also slidably provided with a knee joint positioning component, which includes a third slider and a third elastic positioning plate. The third slider is slidably connected to the second slide groove, and the third elastic positioning plate is slidably passed through the third slider near the leg by an elastic element. The third elastic positioning plate is connected to the strap.

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