Leg joint ligament nursing training device

Abstract

The utility model discloses a leg joint ligament nursing training device which comprises a mounting frame, a driving assembly and a training assembly, and is characterized in that the mounting frame comprises a placing plate, supporting rods mounted at four corners of the placing plate, sliding grooves symmetrically formed in two sides of one end of the placing plate, and sliding blocks mounted in the sliding grooves in a sliding manner; the buffer springs are arranged at two ends of the sliding block; the driving assembly comprises a fixing frame installed on the lower side of the other end of the containing plate, a bearing seat arranged in the middle of the fixing frame, a transmission shaft rotationally installed in the bearing seat, a first rotating disc, a second chain wheel, a blocking ring, a second rotating disc and eccentric seats arranged on the first rotating disc and the second rotating disc, wherein the first rotating disc, the second chain wheel, the blocking ring and the second rotating disc are sequentially installed on the transmission shaft from top to bottom. Two ends of the connecting rod are rotationally connected with the eccentric seat and the sliding block respectively. In the rehabilitation nursing process of the articular ligament, the patient does not need to bend the leg forcibly in a reciprocating mode with the assistance of the hand, and the varicosity degree and the varicosity stroke can be adjusted according to varicosity requirements of different patients.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a leg joint ligament care and training device. Background Technology

[0002] After a joint ligament injury, rehabilitation care is required. The current rehabilitation care method involves the patient sitting on the hospital bed and bending their legs until they feel pain in their legs. During this process, the patient needs to use their hands to assist in bending their legs repeatedly, which is quite inconvenient.

[0003] Therefore, in order to solve the above-mentioned technical problems, this utility model provides a leg joint ligament care training device. Utility Model Content

[0004] The purpose of this invention is to provide a leg joint ligament care training device that does not require the patient to use their hands to repeatedly bend their leg during the joint ligament rehabilitation process, and can adjust the degree and range of varicose veins according to the different varicose vein needs of different patients.

[0005] To achieve the above-mentioned technical effects, this utility model is implemented through the following technical solution: A leg joint ligament care training device, comprising a mounting frame, a drive assembly, and a training assembly, characterized in that: the mounting frame includes a placement plate, support rods installed at the four corners of the placement plate, sliding grooves symmetrically arranged on both sides of one end of the placement plate, sliding blocks slidably installed inside the sliding grooves, and buffer springs at both ends of the sliding blocks; the drive assembly includes a fixed frame installed on the lower side of the other end of the placement plate, a bearing seat in the middle of the fixed frame, a transmission shaft rotatably installed inside the bearing seat, a first turntable, a second sprocket, a blocking ring, and a second turntable sequentially installed on the transmission shaft from top to bottom, an eccentric seat on the first turntable and the second turntable, and connecting rods rotatably connecting the eccentric seat and the sliding block at both ends; the training assembly includes a first hinge seat symmetrically arranged on the upper side of the other end of the placement plate, a first support plate rotatably installed on the first hinge seat, a second support plate hinged at both ends to the end of the first support plate and the upper surface of the sliding block, a foot pedal at the end of the second support plate, restraint straps on both sides of the foot pedal, and Velcro fasteners installed at the ends of the restraint straps and connecting them to each other.

[0006] Furthermore, a guide rod is provided in the middle of the sliding groove, the buffer spring is sleeved on the guide rod, and a guide hole adapted to the guide rod is provided through the sliding block; the two ends of the buffer spring are respectively fixedly installed on the inner wall of the sliding groove and the outer wall of the sliding block.

[0007] Furthermore, a second hinge seat is provided at the upper end of the sliding block, and the end of the second support plate is rotatably connected to the second hinge seat; the outer diameter of the blocking ring is larger than the inner diameter of the bearing seat.

[0008] Furthermore, a cushion and a controller are also provided on the upper surface of the placement board, and an external wire is provided on the side of the controller, which is electrically connected to the controller.

[0009] Furthermore, a drive motor is provided on the side end of the fixed frame, and a first sprocket is mounted on the output shaft of the drive motor, which meshes with the chain connecting the first sprocket and the second sprocket; the drive motor is electrically connected to the controller.

[0010] Furthermore, the eccentric seat includes an adjustment box disposed on the first turntable and the second turntable, an adjustment groove disposed on the upper end of the adjustment box, an adjustment screw rotatably installed inside the adjustment box, an adjustment handle installed on one end of the adjustment screw, a threaded sleeve threadedly connected to the adjustment screw, an adjustment slider disposed on the upper end of the threaded sleeve, and a connecting shaft disposed on the upper end of the adjustment slider; the upper end of the adjustment slider is slidably installed inside the adjustment groove; one end of the connecting rod is rotatably connected to the connecting shaft.

[0011] The beneficial effects of this utility model are:

[0012] This invention, by setting up a drive component and a training component, allows patients to place their feet on the first and second support plates of the training component, and then operate the controller to operate the drive motor, which drives the first and second turntables to rotate. The connecting rod drives the sliding block to reciprocate along the sliding groove, causing the first and second support plates to move, thereby stretching and relaxing the joint. The interaction of the buffer springs at both ends of the sliding block reduces impact, preventing excessive extension or flexion of the joint. The eccentric seat allows the distance between the connecting shaft and the center of the turntable to be changed by rotating the adjusting screw, controlling the eccentricity of the connecting rod's position on the turntable and adjusting the reciprocating stroke distance. As the stroke changes, the opening and closing angles of the first and second support plates also change, allowing the device to adjust the degree and stroke of varicose veins according to the different needs of different patients. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a front view of the utility model;

[0016] Figure 3This is a side view of the present invention;

[0017] Figure 4 This is a utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0018] Figure 5 This is a top view of the present invention;

[0019] Figure 6 This is a schematic diagram of the internal structure of this utility model;

[0020] Figure 7 This is a utility model Figure 6 Enlarged structural diagram at point B;

[0021] Figure 8 This is a schematic diagram of the internal structure of the sliding block of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Mounting frame; 11. Placement plate; 12. Support rod; 13. Sliding groove; 14. Sliding block; 15. Buffer spring; 16. Seat cushion; 17. Controller; 18. External wire; 2. Drive assembly; 21. Fixing frame; 211. Drive motor; 212. First sprocket; 213. Chain; 22. Bearing seat; 23. Drive shaft; 24. First turntable; 25. Second sprocket; 26. Blocking ring; 27. Second turntable; 28. Eccentric seat; 281. Adjustment box; 282. Adjustment groove; 283. Adjustment screw; 284. Adjustment handle; 285. Screw sleeve; 286. Adjustment slider; 287. Connecting shaft; 29. ​​Connecting rod; 3. Training assembly; 31. Hinge seat; 32. First support plate; 33. Second support plate; 34. Foot pedal; 35. Restraint strap. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] See Figures 1 to 8As shown, a leg joint ligament care training device includes a mounting frame 1, a drive assembly 2, and a training assembly 3. The mounting frame 1 includes a placement plate 11, support rods 12 mounted at the four corners of the placement plate 11, sliding grooves 13 symmetrically arranged on both sides of one end of the placement plate 11, sliding blocks 14 slidably mounted inside the sliding grooves 13, and buffer springs 15 at both ends of the sliding blocks 14. The drive assembly 2 includes a fixed frame 21 mounted on the lower side of the other end of the placement plate 11, a bearing seat 22 located in the middle of the fixed frame 21, a drive shaft 23 rotatably mounted inside the bearing seat 22, and a series of components sequentially mounted on the drive shaft 23 from top to bottom. The training assembly 3 includes a turntable 24, a second sprocket 25, a blocking ring 26, and a second turntable 27; an eccentric seat 28 is set on the first turntable 24 and the second turntable 27; and a connecting rod 29 is rotatably connected at both ends to the eccentric seat 28 and the sliding block 14. The training assembly 3 includes a hinge seat 31 symmetrically set on the upper side of the other end of the placement plate 11; a first support plate 32 rotatably mounted on the hinge seat 31; a second support plate 33 hinged at both ends to the end of the first support plate 32 and the upper surface of the sliding block 14; a foot pedal 34 set at the end of the second support plate 33; restraint straps 35 set on both sides of the foot pedal 34; and Velcro fasteners installed at the ends of the restraint straps 35 that cooperate with each other.

[0027] A guide rod is provided in the middle of the sliding groove 13, and the buffer spring 15 is sleeved on the guide rod. A guide hole adapted to the guide rod is provided through the sliding block 14. The two ends of the buffer spring 15 are respectively fixedly installed on the inner wall of the sliding groove 13 and the outer wall of the sliding block 14. This ensures that the buffer spring 15 can move along the guide rod, preventing the buffer spring 15 from deforming towards the upper and lower openings of the sliding groove 13, thus reducing the buffering performance of the buffer spring 15. At the same time, the guide hole allows the sliding block 14 to move along the guide rod, applying positive compression to the buffer spring 15.

[0028] The upper surface of the placement plate 11 is also provided with a seat cushion 16 and a controller 17. An external wire 18 is provided on the side of the controller 17, and the external wire 18 is electrically connected to the controller 17. An external power supply can be connected to the controller 17 to power the drive motor 211, ensuring the normal operation of the electrical appliances. The controller can control the power supply to the drive motor 211, ensuring that the patient can actively control the start and stop of the device.

[0029] A drive motor 211 is provided on the side of the fixed frame 21. A first sprocket 212 is mounted on the output shaft of the drive motor 211, and a chain 213 meshes with the first sprocket 212 and the second sprocket 25. The drive motor 211 is electrically connected to the controller 17. The power of the drive motor is transmitted to the transmission shaft 23 through the sprocket mechanism, driving the transmission shaft 23 to rotate, which in turn drives the first turntable 24 and the second turntable 27 to rotate. The crank-slider mechanism, which is composed of the turntable, the eccentric seat 28, the connecting rod 29 and the sliding block 14, can convert the rotation of the first turntable 24 and the second turntable 27 into the linear movement of the sliding block 14 along the sliding groove 13, thereby driving the training component 3 to flex and relax, so as to stretch and relax the joint.

[0030] The eccentric seat 28 includes an adjustment box 281 disposed on the first turntable 24 and the second turntable 27, an adjustment groove 282 disposed on the upper end of the adjustment box 281, an adjustment screw 283 rotatably installed inside the adjustment box 281, an adjustment handle 284 installed at one end of the adjustment screw 283, a threaded sleeve 285 threadedly connected to the adjustment screw 283, an adjustment slider 286 disposed on the upper end of the threaded sleeve 285, and a connecting shaft 287 disposed on the upper end of the adjustment slider 286; the upper end of the adjustment slider 286 is slidably installed inside the adjustment groove 282; one end of the connecting rod 29 is rotatably connected to the connecting shaft 287. The distance between the connecting shaft 287 and the rotation center can be changed by rotating the adjustment screw 283, thereby controlling the eccentricity of the position of the connecting rod 29 connected to the turntable, and thus adjusting the reciprocating stroke distance. After the stroke changes, the opening and closing angles of the first support plate 32 and the second support plate 33 also change, enabling the device to adjust the degree and stroke of varicose veins according to the different varicose vein needs of different patients.

[0031] Example 2

[0032] In this utility model, the first support plate 32 is provided with a hinge seat at its end and the sliding block 14 at its upper end, and the two ends of the second support plate 33 are respectively rotatably connected to the hinge seat.

[0033] The outer diameter of the blocking ring 26 of this utility model is larger than the inner diameter of the bearing seat 22.

[0034] The bearing housing 22 described in this utility model is specifically a bearing housing that extends through both ends, ensuring that the lower end of the transmission shaft 23 can pass through the bearing housing 22 while also being able to rotate normally inside the bearing housing 22.

[0035] The hook and loop fasteners of this invention, which are connected to each other, include a hook and loop loop surface and a hook and loop loop hook surface.

[0036] The first support plate 32 and the second support plate 33 of this utility model can be telescopic plates to accommodate patients with different leg lengths; the telescopic plates adopt the same structure as the existing tent telescopic poles, and can be telescopically adjusted.

[0037] The adjusting box 281 of this utility model is provided with bearing seats at both ends, and the adjusting screw 283 is installed inside the bearing seats to ensure that the adjusting screw 283 can rotate synchronously when the adjusting handle 284 is rotated.

[0038] When the connecting rod 29 of this invention is in the maximum eccentric position, the outer end of the adjusting handle is located inside the support rod 12, ensuring that the support rod 12 will not interfere with the normal rotation of the first turntable 24 and the second turntable 27.

[0039] Example 3

[0040] Working principle: When using this device, first connect the external wire 18 to the external power supply, then control the controller 17 to control the drive motor 211 to move, observe whether it can drive the sliding block 14 to move, and whether the movement of the sliding block 14 can drive the second support plate 33 to move back and forth, check whether the device is operating normally. After the check, the assistant disconnects the external wire 18 connected to the external power supply, and then lets the patient sit on the top surface of the cushion 16, and then puts the thigh and calf on the first support plate 32 and the second support plate 33 respectively, and places the foot on the foot pedal 34. Then use the restraint strap 35 to restrain the foot on the foot pedal 34 to ensure that the foot will not fall off during the traction process, so that the foot can follow the movement of the first support plate 32 and the second support plate 33. Through the reciprocating movement of the sliding block 14, the second support plate 33 is driven to move back and forth, thereby driving the patient's leg to straighten or flex.

[0041] After the patient's foot is fixed to the foot pedal 34, the assistant connects the external wire 18 to an external power source, and then controls the controller 17 to control the drive motor 211 to move slowly, moving the second support plate 33 forward and straightening the patient's leg. When the patient feels pain (there are two situations: reaching the maximum extension stroke without pain, and feeling pain before reaching the maximum stroke), the control device retracts (reaching the maximum extension stroke position), and the patient can then be trained. During this process, the elasticity of the buffer springs 15 at both ends of the sliding block 14 reduces the impact force, thereby preventing excessive straightening and bending.

[0042] When the patient reaches the maximum extension stroke without pain, adjust the device to the maximum stroke position and then stop the device. At this point, hold the adjusting handle 284 of the eccentric seat 28 and rotate it, causing the adjusting screw 283 to rotate. This causes the threaded sleeve 285 connected to the adjusting screw 283 to move backward, thereby increasing the distance between the connecting shaft 287 and the center of the turntable. This increases the eccentricity of the connecting rod 29. During the adjustment process, the increased eccentricity will cause the sliding block 14 to move outward until the patient feels pain. Stop the adjustment at this point. The position at this point is the maximum extension stroke. Then restart the device to begin training.

[0043] When pain occurs before the maximum extension stroke is reached, stop the device when the patient feels pain, mark the position of the sliding block 14, remove the patient's leg from the device, and then control the device to adjust it to the maximum stroke position. At this time, hold the adjusting handle 284 of the eccentric seat 28 and rotate it, causing the adjusting screw 283 to rotate, which drives the threaded sleeve 285 connected to the adjusting screw 283 to move forward, thereby reducing the distance between the connecting shaft 287 and the center of the turntable, thus reducing the eccentricity of the connecting rod 29. During the adjustment process, due to the reduction in eccentricity, the sliding block 14 will move inward. When the sliding block 14 retracts to the marked position, stop the adjustment. This position is the maximum extension stroke. Then fix the patient's leg again and restart the device to start training.

Claims

1. A knee ligament care training device comprising a mounting frame, a driving assembly and a training assembly, characterized in that: The mounting frame comprises a placing plate, support rods mounted at four corners of the placing plate, sliding grooves symmetrically arranged at two sides of one end of the placing plate, sliding blocks slidingly mounted in the sliding grooves, and buffer springs arranged at two ends of the sliding blocks; the driving assembly comprises a fixing frame mounted at the other end of the placing plate, a bearing seat arranged at the middle of the fixing frame, a transmission shaft rotatably mounted in the bearing seat, a first rotating disc, a second sprocket, a blocking ring and a second rotating disc mounted on the transmission shaft in sequence from top to bottom, eccentric seats arranged on the first rotating disc and the second rotating disc, and connecting rods rotatably connected between the eccentric seats and the sliding blocks at two ends; the training assembly comprises first hinged seats symmetrically arranged on the upper side of the other end of the placing plate, a first supporting plate rotatably mounted on the first hinged seat, a second supporting plate hingedly connected between the end of the first supporting plate and the upper surface of the sliding block at two ends, a foot plate arranged at the end of the second supporting plate, restraint belts arranged at two sides of the foot plate, and magic tapes cooperatively connected at the ends of the restraint belts.

2. The knee ligament care training device according to claim 1, wherein A guide rod is arranged in the middle of the sliding groove, the buffer spring is sleeved on the guide rod, and a guide hole matched with the guide rod is arranged through the sliding block; the buffer spring is fixedly mounted on the inner wall of the sliding groove and the outer wall of the sliding block at two ends.

3. The knee ligament care training device according to claim 1, wherein A cushion and a controller are further arranged on the upper surface of the placing plate, an external lead wire is arranged at the side end of the controller, and the external lead wire is electrically connected to the controller.

4. The knee ligament care training device according to claim 1, wherein A driving motor is arranged at the side end of the fixing frame, a first sprocket is mounted on the output shaft of the driving motor, and a chain is engagedly connected between the first sprocket and the second sprocket; the driving motor is electrically connected to the controller.

5. The knee ligament care training device according to claim 1, wherein The eccentric seat comprises adjusting boxes arranged on the first rotating disc and the second rotating disc, an adjusting groove arranged at the upper end of the adjusting box, an adjusting screw rotatably mounted in the adjusting box, an adjusting crank mounted at one end of the adjusting screw, a screw sleeve threadedly connected to the adjusting screw, an adjusting sliding block arranged at the upper end of the screw sleeve, and a connecting shaft arranged at the upper end of the adjusting sliding block; the upper end of the adjusting sliding block is slidingly mounted in the adjusting groove; and one end of the connecting rod is rotatably connected to the connecting shaft.

Images