Joint motion range measuring device for rheumatic disease of children

Abstract

The utility model discloses a joint motion range measuring device for children rheumatic diseases, which comprises a measuring scale, one side of the measuring scale is provided with a sliding chute, the inner wall of the sliding chute is connected with a movable shaft in a sliding manner, and the tail end of the movable shaft is fixedly connected with a limiting block. According to the joint motion range measuring device for the rheumatic disease of the children, the electric telescopic rod is controlled to be powered on and extend in the measuring process, and the strip-shaped plate, the connecting shaft, the connecting block and the bearing are used in cooperation, so that the leg of a patient can be supported, the burden of joints is relieved, and the joint motion range measuring device can be used for measuring the rheumatic disease of the children. When the knee joint of the child moves to a certain range and feels painful, the electric telescopic rod is controlled to slowly retract, and the knee is slowly laid flat under the cooperation of the knee stretching muscle force of a patient, so that the situation that the shank of the child drops rapidly due to the self-protection instinct is avoided, and the child feels more comfortable when the child feels painful is avoided. And the knee joint can be protected from further injury.

Description

Technical Field

[0001] The utility model relates to the technical field of joint mobility measurement, in particular to a joint mobility measurement device for children with rheumatic diseases. Background Art

[0002] Pediatric rheumatic diseases are complex chronic inflammatory diseases that affect children's joints, muscles, bones and surrounding soft tissues (including but not limited to bursae, tendons, fascia, blood vessels, nerves, etc.). Their clinical manifestations are diverse and are often accompanied by symptoms such as joint pain, swelling, stiffness and limited range of motion. Given that children are in a critical period of growth and development, if such diseases are not treated promptly and effectively, they will not only have a serious impact on the daily lives of children, but may also cause long-term joint dysfunction and even irreversible skeletal deformities. Therefore, it is particularly important to develop a device that can accurately measure the joint range of motion of patients with pediatric rheumatic diseases.

[0003] For example, a joint range of motion measuring device disclosed in the utility model with authorization announcement number CN220025039U "comprises a mounting plate, a movable plate, a measuring ruler, a limiting block, a screw rod, a mounting block and a height adjustment nut; a mounting block is provided on the screw rod, a through hole is opened on the mounting block, the mounting block is sleeved on the screw rod, and the mounting block is provided above the height adjustment nut; a connecting finger is provided on the mounting block, a strip groove is provided on the movable plate, the strip groove passes through the mounting plate, and the connecting finger passes through the strip groove and is installed with the measuring ruler; the height adjustment nut drives the measuring ruler to move up and down in a straight line along the strip groove through the connecting finger. For different patients, due to differences in body shape, joints, etc., the baseline height of the measuring ruler can be adjusted during measurement to adapt to joints of different shapes, which has universality and improves the accuracy of the measuring structure. The device is light and portable and easy to carry."

[0004] However, when the above-mentioned device is in use, it cannot fix and support the children's legs. Moreover, when the children's knee joints move to a certain range and feel pain, they often quickly lower their calves to straighten their legs out of self-protection instinct, thereby interrupting the measurement process. This behavior not only affects the accuracy and completeness of the measurement results, but may also cause further damage to the joints or aggravate the pain due to sudden movements. Utility Model Content

[0005] The main purpose of the present invention is to provide a device for measuring the range of motion of joints for children with rheumatic diseases, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A device for measuring the range of motion of joints for children with rheumatic diseases, comprising a measuring ruler, a slide groove being provided on one side of the measuring ruler, a movable shaft being slidably connected to the inner wall of the slide groove, a tail end of the movable shaft being fixedly connected to a limiting block, a front end of the movable shaft being fixedly connected to a pointer, a front end of the movable shaft being fixedly connected to a fixing belt, a strip plate being fixedly installed on the outer surface of the limiting block, a tail end of the strip plate being fixedly connected to the movable block, a connecting shaft being rotatably connected to the middle part of one side of the strip plate, a tail end of the connecting shaft being fixedly connected to a connecting block, a front face of the connecting block being fixedly connected to an electric telescopic rod, a tail end of the electric telescopic rod being fixedly connected to a bearing, and an inner ring of the bearing being fixedly connected to a fixed shaft.

[0008] Preferably, the slide groove extends to the other side of the measuring ruler, one side of the limit block is movably connected to the other side of the measuring ruler, one side of the pointer is movably connected to one side of the measuring ruler, the movable block is rotatably connected to the other side of the measuring ruler, and the movable block is located at the center of the measuring ruler.

[0009] Preferably, the inner wall of the fixing belt is provided with a plurality of groups of ventilation holes, and Velcro is provided at both ends of the fixing belt.

[0010] Preferably, a rubber pad is slidably connected to the bottom of the measuring ruler, and a base plate is fixedly mounted on the bottom of the rubber pad.

[0011] Preferably, a groove is provided on the top of the rubber pad, and the position of the groove is aligned with the center of the measuring ruler.

[0012] Preferably, a fixing plate is fixedly installed on one side of the base plate, a support frame is fixedly installed on the top of the fixing plate, a hydraulic telescopic rod is fixedly installed on one side of the support frame, and the output end of the hydraulic telescopic rod is fixedly connected to the other side of the measuring ruler.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the utility model, the electric telescopic rod is controlled to be energized and extended during measurement, and the strip plate, connecting shaft, connecting block and bearing are used in coordination, so that the electric telescopic rod can not only support the patient's legs and reduce the burden on the joints, but also stop the resetting of the strip plate to facilitate measurement. When the child's knee joint moves to a certain range and feels pain, the electric telescopic rod is controlled to slowly retract, and with the cooperation of the patient's knee extensor muscle strength, the knee is slowly flattened, thereby preventing the child from quickly lowering the calf due to self-protection instinct, which helps to protect the knee joint from further injury. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a device for measuring joint mobility for children with rheumatic diseases according to the present invention;

[0016] Figure 2 This is a schematic diagram of the bottom plate structure of a device for measuring joint mobility for children with rheumatic diseases according to the present invention;

[0017] Figure 3 This is a front structural schematic diagram of a joint range of motion measuring device for children with rheumatic diseases according to the present invention;

[0018] Figure 4 The utility model is a schematic diagram of the strip plate structure of a joint mobility measuring device for children with rheumatic diseases.

[0019] In the figure: 1. Measuring ruler; 2. Rubber pad; 3. Bottom plate; 4. Groove; 5. Support frame; 6. Fixing belt; 7. Slide; 8. Hydraulic telescopic rod; 9. Fixed shaft; 10. Fixed plate; 11. Electric telescopic rod; 12. Pointer; 13. Ventilation hole; 14. Movable shaft; 15. Limit block; 16. Movable block; 17. Connecting block; 18. Bearing; 19. Strip plate; 20. Connecting shaft. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] Example 1:

[0022] like Figure 1 、 Figure 3 and Figure 4 As shown, a device for measuring the range of motion of joints for children with rheumatic diseases includes a measuring ruler 1, characterized in that: a slide groove 7 is opened on one side of the measuring ruler 1, a movable shaft 14 is slidably connected to the inner wall of the slide groove 7, the tail end of the movable shaft 14 is fixedly connected to a limiting block 15, the front end of the movable shaft 14 is fixedly connected to a pointer 12, the front end of the movable shaft 14 is fixedly connected to a fixing belt 6, a strip plate 19 is fixedly installed on the outer surface of the limiting block 15, the tail end of the strip plate 19 is fixedly connected to a movable block 16, and the middle part of one side of the strip plate 19 is rotatably connected to the movable block 16. There is a connecting shaft 20, the tail end of the connecting shaft 20 is fixedly connected to the connecting block 17, the front of the connecting block 17 is fixedly connected to the electric telescopic rod 11, the tail end of the electric telescopic rod 11 is fixedly connected to the bearing 18, the inner ring of the bearing 18 is fixedly connected to the fixed shaft 9, the slide groove 7 extends to the other side of the measuring ruler 1, one side of the limit block 15 is movably connected to the other side of the measuring ruler 1, one side of the pointer 12 is movably connected to one side of the measuring ruler 1, and the movable block 16 is rotatably connected to the other side of the measuring ruler 1, and the movable block 16 is located at the center of the measuring ruler 1;

[0023] When using the device for measurement, the child patient lies on one side of the measuring ruler 1, aligns the knee with the center of the measuring ruler 1, and then uses the fixing belt 6 to fix the ankle. The child patient slowly bends the knee, and the ankle drives the fixing belt 6 to move, thereby driving the movable shaft 14 to slide along the track of the slide groove 7. By setting the track of the slide groove 7 to be semicircular, the slide groove 7 can conform to the track of the leg swing when the knee is bent, thereby improving the accuracy of the measurement. While the movable shaft 14 moves, it drives the limit block 15 to move synchronously, and then drives the strip plate 19 to start rotating with the movable block 16 as the axis, so that the strip plate 19 can rotate flexibly with the bending of the knee. The strip plate 19 is connected to the connecting shaft 20, so that the connecting shaft 20 moves synchronously with the strip plate 19, and then drives the connecting block 17 to move, controlling The electric telescopic rod 11 is energized so that its output end begins to extend, and under the cooperation of the connecting block 17 and the bearing 18, the inclination angle of the electric telescopic rod 11 changes with the rotation of the strip plate 19, thereby supporting the patient's ankle, helping to reduce the weight of the calf and foot, and thus reducing the burden on the joints, and at the same time, it can stop the resetting of the strip plate 19. The pointer 12 is fixedly connected to the movable shaft 14, and then the measurement result can be obtained by observing the scale on the measuring ruler 1 pointed by the pointer 12. When the patient feels pain in the knee joint, the output end of the electric telescopic rod 11 is controlled to slowly retract, and with the cooperation of the patient's knee extensor muscle strength, the strip plate 19 is rotated in the opposite direction, thereby achieving the purpose of slowly flattening the knee, avoiding further damage to the knee joint caused by rapid drooping of the calf.

[0024] like Figure 2 and Figure 4 As shown, a device for measuring the range of motion of a joint for children with rheumatic diseases is provided. The inner wall of a fixing belt 6 is provided with multiple groups of ventilation holes 13, and both ends of the fixing belt 6 are provided with Velcro. A rubber pad 2 is slidably connected to the bottom of the measuring ruler 1, a bottom plate 3 is fixedly installed on the bottom of the rubber pad 2, a groove 4 is provided on the top of the rubber pad 2, and the position of the groove 4 is aligned with the center of the circle of the measuring ruler 1, a fixing plate 10 is fixedly installed on one side of the bottom plate 3, a support frame 5 is fixedly installed on the top of the fixing plate 10, a hydraulic telescopic rod 8 is fixedly installed on one side of the support frame 5, and the output end of the hydraulic telescopic rod 8 is fixedly connected to the other side of the measuring ruler 1;

[0025] After the patient lies on the rubber mat 2, he places his knees on the groove 4. By aligning the groove 4 with the center of the measuring ruler 1, the patient's knee can be accurately aligned with the center of the measuring ruler 1, thereby improving the accuracy of the measurement. Then, the hydraulic telescopic rod 8 is controlled to operate so that its output end drives the measuring ruler 1 to slide to the side of the patient until the measuring ruler 1 contacts the side of the patient's leg to facilitate accurate measurement. By providing ventilation holes 13 on the fixing belt 6, the stuffiness at the patient's ankle during measurement is effectively reduced.

[0026] It should be noted that the present invention is a device for measuring the range of motion of joints for children with rheumatic diseases. When in use, the patient lies on the rubber mat 2 and places his knee on the groove 4. The hydraulic telescopic rod 8 is then controlled to operate so that its output end drives the measuring ruler 1 to slide toward the patient and contact the patient's leg. The patient's ankle is fixed using the fixing belt 6, and the patient begins to bend his knee. At the same time, the electric telescopic rod 11 is controlled to be energized and extended. The knee bending drives the calf to swing, and then drives the movable shaft 14 to slide along the inner wall of the slide groove 7, while driving the strip plate 19 to rotate with the movable block 16 as the axis. With the cooperation of the connecting shaft 20, the connecting block 17 and the bearing 18, the electric telescopic rod 11 changes its inclination angle while extending, thereby supporting the patient's ankle and reducing the burden on the joint. After bending to a certain degree, the scale pointed to by the pointer 12 can be observed to obtain the measurement result. During the measurement process, if the patient feels pain in the knee joint, the electric telescopic rod 11 is controlled to retract, and with the cooperation of the knee extensor muscle strength, the knee is slowly flattened to avoid further damage to the patient's knee joint.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A device for measuring the range of motion of joints for children with rheumatic diseases, comprising a measuring ruler (1), characterized in that: A sliding groove (7) is provided on one side of the measuring ruler (1), and a movable shaft (14) is slidably connected to the inner wall of the sliding groove (7), the tail end of the movable shaft (14) is fixedly connected to a limit block (15), the front end of the movable shaft (14) is fixedly connected to a pointer (12), the front end of the movable shaft (14) is fixedly connected to a fixing belt (6), a strip plate (19) is fixedly installed on the outer surface of the limit block (15), the tail end of the strip plate (19) is fixedly connected to a movable block (16), the middle part of one side of the strip plate (19) is rotatably connected to a connecting shaft (20), the tail end of the connecting shaft (20) is fixedly connected to a connecting block (17), the front face of the connecting block (17) is fixedly connected to an electric telescopic rod (11), the tail end of the electric telescopic rod (11) is fixedly connected to a bearing (18), and the inner ring of the bearing (18) is fixedly connected to a fixed shaft (9).

2. The device for measuring joint mobility for children with rheumatic diseases according to claim 1, characterized in that: The slide groove (7) extends to the other side of the measuring ruler (1), one side of the limit block (15) is movably connected to the other side of the measuring ruler (1), one side of the pointer (12) is movably connected to one side of the measuring ruler (1), and the movable block (16) is rotatably connected to the other side of the measuring ruler (1), and the movable block (16) is located at the center of the measuring ruler (1).

3. The joint range of motion measuring device for children with rheumatic diseases according to claim 1, characterized in that: The inner wall of the fixing belt (6) is provided with a plurality of groups of ventilation holes (13), and both ends of the fixing belt (6) are provided with Velcro.

4. The device for measuring joint mobility for children with rheumatic diseases according to claim 1, characterized in that: The bottom of the measuring ruler (1) is slidably connected to a rubber pad (2), and the bottom of the rubber pad (2) is fixedly mounted with a base plate (3).

5. The device for measuring joint mobility for children with rheumatic diseases according to claim 4, characterized in that: A groove (4) is provided on the top of the rubber pad (2), and the position of the groove (4) is aligned with the center of the measuring ruler (1).

6. The device for measuring joint mobility for children with rheumatic diseases according to claim 4, characterized in that: A fixed plate (10) is fixedly mounted on one side of the base plate (3), a support frame (5) is fixedly mounted on the top of the fixed plate (10), a hydraulic telescopic rod (8) is fixedly mounted on one side of the support frame (5), and an output end of the hydraulic telescopic rod (8) is fixedly connected to the other side of the measuring ruler (1).

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