Knee angle broadcasting measuring device
By designing a knee joint angle reporting and measuring device that combines mechanical and electronic components, the problems of knee joint angle detection accuracy and inconvenient reading were solved. This enabled intuitive measurement and automatic reporting of knee joint movement angles, improving detection accuracy and the accuracy of rehabilitation judgment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE SECOND HOSPITAL AFFILIATED TO WENZHOU MEDICAL COLLEGE
- Filing Date
- 2025-03-12
- Publication Date
- 2026-07-31
AI Technical Summary
Existing technologies have poor accuracy in knee joint angle detection and are inconvenient to read. Traditional visual judgment has large errors, and the values detected by angle and attitude sensors need to be read manually.
A knee joint angle broadcasting and measuring device was designed. Combining mechanical structure and electronic components, through the cooperation of a rotating shaft, pointer, angle measurement scale line, color marking area, arc-shaped resistance wire, copper block, copper strip, and controller, the device can realize the intuitive measurement and broadcasting of knee joint movement angle.
It enables intuitive reading and reporting of knee joint movement angles, improves detection accuracy, and can automatically report knee joint rehabilitation status, reducing manual intervention.
Smart Images
Figure CN224572747U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical technology, and in particular to a knee joint angle broadcasting and measuring device. Background Technology
[0002] When the knee joint is injured, bending movements are required during rehabilitation. In order to understand the changes in the angle of the knee joint during movement and to judge the specific situation of the patient's rehabilitation, traditionally, medical staff mostly judged it with their naked eyes. This method of judgment has a large error. Existing technology also uses angle and posture sensors for detection. This detection method has relatively poor accuracy, and the detection values mostly need to be read by medical staff or patients themselves.
[0003] Therefore, it is necessary to provide a new knee joint angle broadcasting and measuring device to solve the above-mentioned technical problems. Summary of the Invention
[0004] The technical problem solved by this utility model is to provide a knee joint angle broadcasting and measuring device that is easy to use, can simultaneously utilize mechanical structures and electronic components to measure the knee joint movement angle of a patient, and can broadcast the knee joint movement angle of a patient.
[0005] To solve the above-mentioned technical problems, the knee joint angle broadcasting measuring device provided by this utility model includes: a first measuring plate, on which a rotating shaft is rotatably mounted, one end of which passes through the first measuring plate and is fixedly mounted with a second measuring plate, the first measuring plate having arc-shaped angle measurement scale lines and three color marking areas on the side away from the second measuring plate, the three color marking areas being adapted to the angle measurement scale lines, and a pointer being fixedly mounted on one side of the rotating shaft, the pointer being adapted to the color marking areas and the angle measurement scale lines.
[0006] Preferably, the first measuring plate has a mounting hole, and a bearing is fixedly sleeved on the outer side of the rotating shaft, with the outer wall of the bearing being fixedly connected to the inner wall of the mounting hole.
[0007] Preferably, an arc-shaped resistance wire is fixedly installed on the side of the first measuring plate near the second measuring plate, the angle of the arc-shaped resistance wire being 180 degrees. An arc-shaped copper strip and a copper block are fixedly installed on the side of the second measuring plate near the first measuring plate, both of which are connected to the arc-shaped resistance wire.
[0008] Preferably, the first measuring plate has a cavity, and a controller is fixedly installed in the cavity. The controller is connected to the copper block and the arc-shaped copper strip. The controller is used to detect the resistance value between the copper block and the arc-shaped copper strip and to provide corresponding voice prompts based on the resistance value.
[0009] Compared with related technologies, the knee joint angle broadcasting and measuring device provided by this utility model has the following beneficial effects: This invention provides a knee joint angle reporting and measuring device. Through the setting of a rotating shaft, pointer, angle measurement scale line, and radiographic marking area, it can intuitively read the maximum angle of the patient's knee joint movement and intuitively judge the patient's knee joint rehabilitation status. Through the cooperation of arc-shaped resistance wire, copper block, arc-shaped copper strip, cavity and controller, it can measure the patient's knee joint movement angle through electronic components, and announce the maximum angle of the patient's knee joint movement, as well as announce the patient's knee joint rehabilitation status. Attached Figure Description
[0010] Figure 1 A schematic diagram of a preferred embodiment of the knee joint angle broadcasting and measuring device provided by this utility model; Figure 2 for Figure 1 The diagram shows a top-view cross-sectional view of the structure. Figure 3 for Figure 2 The diagram shows a top view of the connection structure of the arc-shaped resistance wire, copper block, and arc-shaped copper strip.
[0011] The following are the labels in the diagram: 1. First measuring plate, 2. Second measuring plate, 3. Rotating shaft, 4. Pointer, 5. Angle measurement scale line, 6. Color marking area, 7. Mounting hole, 8. Bearing, 9. Arc-shaped resistance wire, 10. Copper block, 11. Arc-shaped copper strip, 12. Cavity, 13. Controller. Detailed Implementation
[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0013] Please refer to the following: Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 A schematic diagram of a preferred embodiment of the knee joint angle broadcasting and measuring device provided by this utility model; Figure 2 for Figure 1 The diagram shows a top-view cross-sectional view of the structure. Figure 3 for Figure 2The diagram shows a top view of the connection structure of the arc-shaped resistance wire, copper block, and arc-shaped copper strip. The knee joint angle measuring device includes: a first measuring plate 1, on which a rotating shaft 3 is rotatably mounted. One end of the rotating shaft 3 passes through the first measuring plate 1 and is fixedly mounted with a second measuring plate 2. On the side of the first measuring plate 1 away from the second measuring plate 2, there are arc-shaped angle measurement scale lines 5 and three color-marked areas 6. The three color-marked areas 6 are adapted to the angle measurement scale lines 5. A pointer 4 is fixedly mounted on one side of the rotating shaft 3. The pointer 4 is adapted to the color-marked areas 6 and the angle measurement scale lines 5. The numbers on the angle measurement scale lines 5 are multiple integer values from 0 to 180 degrees. The numerical ranges of the corresponding angle measurement scale lines 5 for the three color-marked areas 6 are 0°-90°, 90°-120°, and 120°-180°, respectively.
[0014] The first measuring plate 1 has a mounting hole 7, and a bearing 8 is fixedly sleeved on the outer side of the rotating shaft 3. The outer wall of the bearing 8 is fixedly connected to the inner wall of the mounting hole 7.
[0015] An arc-shaped resistance wire 9 is fixedly installed on the side of the first measuring plate 1 near the second measuring plate 2. The angle of the arc-shaped resistance wire 9 is 180 degrees. An arc-shaped copper strip 11 and a copper block 10 are fixedly installed on the side of the second measuring plate 2 near the first measuring plate 1. The arc-shaped copper strip 11 and the copper block 10 are both connected to the arc-shaped resistance wire 9.
[0016] The first measuring plate 1 has a cavity 12, and a controller 13 is fixedly installed in the cavity 12. The controller 13 is connected to the copper block 10 and the arc-shaped copper strip 11. The controller 13 is used to detect the resistance value between the copper block 10 and the arc-shaped copper strip 11, and to provide corresponding voice prompts based on the resistance value.
[0017] The working principle of the knee joint angle broadcasting and measuring device provided by this utility model is as follows: In use, the first measuring plate 1 is first fixed to the patient's thigh, and then the second measuring plate 2 is fixed to the patient's calf. When the patient's knee joint moves, the second measuring plate 2 rotates relative to the first measuring plate 1. The second measuring plate 2 drives the rotating shaft 3 to rotate, and the rotating shaft 3 drives the pointer 4 to rotate, thereby moving the pointer 4 to the corresponding angle measurement scale line 5 and stopping at the corresponding color mark area 6. At the same time, the second measuring plate 2 drives the arc-shaped resistance wire 9 to rotate. As the arc-shaped resistance wire 9 rotates, the relative resistance value between the arc-shaped copper strip 11 and the copper block 10 decreases. The controller 13 measures the rotation angle of the second measuring plate 2 according to the change in resistance value and reads it out. When the rotation angle of the second measuring plate 2 is <90°, it announces: Your knee joint flexion angle is poor; when the rotation angle of the second measuring plate 2 is between 90° and 120°, it announces: Your knee joint flexion angle is good; when the rotation angle of the second measuring plate 2 is greater than 120°, it announces: Your knee joint flexion angle is excellent.
[0018] Compared with related technologies, the knee joint angle broadcasting and measuring device provided by this utility model has the following beneficial effects: This utility model provides a knee joint angle broadcasting and measuring device. Through the setting of the rotating shaft 3, pointer 4, angle measuring scale line 5, and radiographic marking area 6, it can intuitively read the maximum angle of the patient's knee joint movement and intuitively judge the patient's knee joint rehabilitation status. Through the cooperation of the arc-shaped resistance wire 9, copper block 10, arc-shaped copper strip 11, cavity 12 and controller 13, it can measure the patient's knee joint movement angle through electronic components, broadcast the maximum angle of the patient's knee joint movement, and broadcast the patient's knee joint rehabilitation status.
[0019] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A knee joint angle broadcasting and measuring device, characterized in that, include: A first measuring plate has a rotating shaft rotatably mounted on it. One end of the rotating shaft passes through the first measuring plate and is fixedly mounted on a second measuring plate. The first measuring plate has arc-shaped angle measurement scale lines and three color marking areas on the side away from the second measuring plate. The three color marking areas are adapted to the angle measurement scale lines. A pointer is fixedly mounted on one side of the rotating shaft. The pointer is adapted to the color marking areas and the angle measurement scale lines.
2. The knee angle announcing measurer according to claim 1, wherein The first measuring plate has a mounting hole, and a bearing is fixedly sleeved on the outer side of the rotating shaft. The outer wall of the bearing is fixedly connected to the inner wall of the mounting hole.
3. The knee angle announcing measurer according to claim 1, wherein An arc-shaped resistance wire is fixedly installed on the side of the first measuring plate near the second measuring plate. The angle of the arc-shaped resistance wire is 180 degrees. An arc-shaped copper strip and a copper block are fixedly installed on the side of the second measuring plate near the first measuring plate. The arc-shaped copper strip and the copper block are connected to the arc-shaped resistance wire.
4. The knee angle announcing measurer according to claim 3, wherein The first measuring plate has a cavity, and a controller is fixedly installed in the cavity. The controller is connected to the copper block and the arc-shaped copper strip. The controller is used to detect the resistance value between the copper block and the arc-shaped copper strip and to provide corresponding voice prompts based on the resistance value.