Lower limb rehabilitation device for stroke patient

Abstract

The invention discloses a lower limb rehabilitation device for a stroke patient, and relates to the technical field of medical instruments, the lower limb rehabilitation device comprises a support, a cylindrical shaft is transversely fixed on the top of the support, and the cylindrical shaft is provided with a lower limb transverse moving assembly used for assisting lower limb rehabilitation of the stroke patient; a lower limb bending auxiliary assembly used for assisting lower limb rehabilitation of the stroke patient is arranged below the cylindrical shaft, and a control device is further arranged on the top of the support. The double-shaft motor is driven to rotate through the control device, so that the lower limb transverse moving assembly drives the two legs of the stroke patient to extend outwards or retract inwards, and the knee joints of the patient are driven to bend or the ankle joints of the patient are driven to bend and the whole legs are lifted up by driving the first electric push rod or the second electric push rod. The leg muscles of the patient are massaged through the massage balls; the system has the advantages of being comprehensive in function, convenient to use, labor-saving, cost-saving and high in flexibility.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a lower limb rehabilitation device for stroke patients. Background Art

[0002] "Stroke", also known as "stroke" or "cerebrovascular accident", is a group of diseases that cause brain tissue damage due to sudden rupture of brain blood vessels or blood vessel blockage that prevents blood from flowing into the brain. One of the common sequelae after stroke is limb movement disorder. Good limb rehabilitation training is the key to reducing stroke sequelae. Studies have shown that stroke patients should conduct lower limb function training as early as possible, avoid long-term bed rest as much as possible, and gradually increase the angle of sitting and standing. If they cannot get out of bed, they should perform active and passive movements of the lower limbs in bed within their ability to assist patients in recovering limb function as soon as possible. However, due to the functional impairment of patients, they cannot complete leg stretching training independently. It is generally implemented by therapists or other people, and the implementers need to have certain nursing knowledge. Long-term reciprocation is very physically demanding for the implementers, so special rehabilitation training products are needed to replace human work; traditional leg rehabilitation trainers are mainly used for postoperative rehabilitation training of knee joints, with a small range of motion, single training movements, and insufficient functions. They are not suitable for rehabilitation training of lower limb joints in hemiplegic patients.

[0003] Existing lower limb rehabilitation device products for stroke patients, such as a lower limb rehabilitation device for stroke patients provided by publication number CN117084911 A, include a bracket, one end of the bracket is fixed with a foot plate, the other end of the bracket is slidably connected with a lying board in the vertical direction, a plurality of vertical support rods are fixed to the lower end of the lying board, the bracket includes two inverted U-shaped support rods, each of which is equipped with a massage assembly, the massage assembly includes a moving cylinder slidably sleeved on the straight portion of the support rod, a first drive component can drive the moving cylinder to move on the straight portion of the support rod, two massage components are slidably connected to the moving cylinder, the massage component is driven by a second drive component, and the second drive component can drive the massage component to rotate around the axis of the moving cylinder; this application mainly massages the lower limbs of stroke patients by changing the position of the massage roller, but this application only performs auxiliary rehabilitation of the patient's lower limbs by massage, and cannot perform all-round recovery of the muscles of the lower limbs, the functionality is poor, so that the patient's lower limb rehabilitation speed is slow, and the device as a whole is fixed to the lying board, which is not easy to move, resulting in poor flexibility. Summary of the invention

[0004] In view of the above-mentioned problems, the present invention aims to provide a lower limb rehabilitation device for stroke patients. By designing a lower limb lateral movement component, it can assist the stroke patient in abduction and adduction of the lower limbs; by designing a lower limb flexion auxiliary component, it can assist the stroke patient in bending the knees and ankles and lifting or lowering the legs as a whole; by designing a leg muscle massage component, it can massage the leg muscles of the stroke patient. The device has the advantages of comprehensive functions, easy use, labor cost saving and strong flexibility.

[0005] The main idea of ​​the technical solution adopted by the present invention is: designing a lower limb lateral movement component, through the dual-axis motor in the cylindrical shaft to drive the cams on both sides to rotate, so that the push rod slides along the groove on the cam surface, and pushes the slider to slide laterally along the cylindrical shaft, thereby driving the legs of the stroke patient to abduct or adduct; designing a lower limb bending auxiliary component, through the shortening and extension of the first electric push rod to drive the knee joint top block to move upward or downward, so that the knee joint of the stroke patient is bent, or through the extension of the second electric push rod behind the foot pedal, thereby pushing the foot pedal and the second connecting rod to bend the ankle of the stroke patient, and pushing the first connecting rod to drive the slider to rotate along the cylindrical shaft, so that the leg of the stroke patient is lifted or lowered as a whole; by designing a leg muscle massage component, by pressing the disc down by the leg, the calf bracket or the thigh bracket is fitted to the leg, and by pressing the massage ball down by the leg and rotating it, the leg muscles at the calf and thigh of the stroke patient are massaged.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows: A lower limb rehabilitation device for stroke patients comprises a bracket, a cylindrical shaft is laterally fixed on the top of the bracket, a lower limb lateral movement component for assisting the stroke patient's lower limb rehabilitation is provided on the cylindrical shaft, and a lower limb bending auxiliary component for assisting the stroke patient's lower limb rehabilitation is provided below the cylindrical shaft.

[0007] The lower limb lateral movement assembly includes a double-axis motor fixed inside a cylindrical shaft, cams are fixed to power output shafts at both ends of the double-axis motor, a pair of first sliders are symmetrically sleeved on the outer side of the cylindrical shaft, slider return springs are connected between the first sliders, a push rod is fixed on the side of the first slider away from the slider return spring, the push rod penetrates into the cylindrical shaft and is slidably connected to the surface of the cam, a first connecting rod is fixed to the bottom of the first slider, and the end of the first connecting rod away from the first slider is connected to a lower limb bending auxiliary assembly and a leg support structure for placing the legs.

[0008] The lower limb bending auxiliary component includes a knee flexion mechanism, which includes a first electric push rod fixed to the bottom of one end of the first connecting rod away from the first sliding block, and the movable end at the bottom of the first electric push rod is flexibly connected to the knee joint top block.

[0009] The leg support structure comprises a calf support and a thigh support, wherein the calf support and the thigh support are flexibly connected to both sides of the knee joint top block respectively, and the calf support and the thigh support are both provided with elastic straps for assisting in fixing the legs.

[0010] The lower limb flexion assist component also includes an ankle joint / leg lifting mechanism, which includes a connecting plate fixed to the bottom of the calf support on the side away from the knee joint top block, a second electric push rod is provided on the side of the connecting plate away from the calf support, a foot pedal is rotatably provided on the connecting plate and located between the second electric push rod and the calf support, the movable end of the second electric push rod is fixedly connected to one side of the foot pedal, a second connecting rod is fixed to the other side of the foot pedal, and an end of the second connecting rod away from the foot pedal is fixedly connected to an end of the first connecting rod away from the first slider.

[0011] The leg support structure is also provided with a leg muscle massage component, which includes a plurality of massage ball fixing rods evenly distributed on the calf support or the thigh support, a massage ball is installed on the top of each massage ball fixing rod, a limiting ring is provided on the massage ball fixing rod, a plurality of sliding connecting rods are fixed on the limiting ring, a plurality of curved sliding grooves are provided on the bottom of the massage ball, and the end of the sliding connecting rod away from the limiting ring is slidably set in the sliding groove.

[0012] A disc return spring is fixed to the middle part of the calf support or the thigh support, a disc is fixed above the disc return spring, pressure plates are provided on both sides below the disc, a side plate is fixed to the end of the pressure plate away from the disc, the end of the side plate away from the pressure plate is fixedly connected to the upper part of the calf support or the thigh support, rotating shafts are fixed on both sides of the disc, and the connection between the pressure plate and the side plate is rotatably connected to the middle part of the rotating shaft.

[0013] A control device is also provided on the top of the bracket, and a signal output end of the control device is respectively connected to the signal input ends of the dual-axis motor, the first electric push rod and the second electric push rod.

[0014] The bracket includes a base, a plurality of universal wheels are arranged at the bottom of the base, a height-adjustable pillar is arranged above the base, a control device is fixed to the top of the pillar, and one side of the top of the pillar is fixed to the middle of the cylindrical shaft through a connecting rod.

[0015] The beneficial effects of the present invention are: 1. By designing a lower limb lateral movement component to assist stroke patients in leg abduction or adduction, designing a lower limb flexion auxiliary component to assist patients in bending at the knees or ankles, and lifting or lowering the legs as a whole, and designing a leg muscle massage component to massage the leg muscles of stroke patients, the present invention can provide all-round auxiliary recovery for the legs of stroke patients and has the advantage of comprehensive functions.

[0016] 2. By setting a control device on the top of the bracket, the accompanying personnel can control the dual-axis motor in the lower limb lateral movement component, the first electric push rod and the second electric push rod in the lower limb bending auxiliary component respectively, so as to perform rehabilitation treatment on various parts of the lower limbs of stroke patients respectively, which has the advantage of convenient use.

[0017] 3. The present invention drives the dual-axis motor in the lower limb lateral movement component through a control device to abduct and adduct the legs of the stroke patient, or drives the first electric push rod in the lower limb bending auxiliary component to drive the stroke patient's knee to bend, and drives the electric push rod to bend the patient's ankle or lift and lower the leg as a whole. Compared with traditional manual assisted treatment methods, the present invention can save a lot of labor costs paid by accompanying personnel.

[0018] 4. By arranging universal wheels at the bottom of the base of the bracket and arranging the support of the bracket as a height-adjustable structure, the present invention can adjust the position and height according to the bed where the stroke patient is located, making the present invention more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention and the bed body; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention from another viewing angle; Figure 4 It is a front view of the present invention; Figure 5 is a side view of the present invention; Figure 6 A top view of the present invention; Figure 7 It is a partial cross-sectional view of the cylindrical shaft of the present invention; Figure 8 It is a three-dimensional structural schematic diagram of the knee flexion mechanism of the present invention; Fig. 9 It is a three-dimensional structural schematic diagram of the calf support or thigh support of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the massage ball part in the muscle massage component of the present invention; Fig.11 It is a three-dimensional structural schematic diagram of the cam of the present invention.

[0020] Among them: 1. bracket; 101. base; 102. universal wheel; 103. pillar; 104. connecting rod; 2. cylindrical shaft; 3. lower limb lateral movement component; 301. double-axis motor; 302. cam; 303. first slider; 304. slider return spring; 305. push rod; 306. first connecting rod; 4. lower limb bending auxiliary component; 401. knee flexion mechanism; 4011. first electric push rod; 4012. knee joint top block; 4013. knee joint top block flexible rope; 402. leg bracket structure; 4021. calf bracket; 402 2. Thigh support; 4023. Leg support flexible rope; 4024. Elastic strap; 403. Ankle joint / leg lifting mechanism; 4031. Connecting plate; 4032. Second electric push rod; 4033. Foot pedal; 4034. Second connecting rod; 5. Leg muscle massage component; 501. Massage ball fixing rod; 502. Massage ball; 503. Limiting ring; 504. Sliding connecting rod; 505. Slide groove; 506. Disc return spring; 507. Disc; 508. Pressure plate; 509. Side plate; 510. Rotating shaft; 6. Control device; 7. Bed body. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] The inventors found that stroke patients cannot complete leg stretching training independently due to limb dysfunction. The training is usually implemented by therapists or other people, and the implementers need to have certain nursing knowledge. The long-term reciprocating training consumes a lot of physical strength of the implementers. Therefore, special rehabilitation training products are needed to replace manual work. Traditional leg rehabilitation trainers are mainly used for postoperative rehabilitation training of knee joints. They have a small range of motion, single training movements, and insufficient functions. They are not suitable for rehabilitation training of lower limb joints of hemiplegic patients. Existing lower limb rehabilitation devices used by stroke patients mostly massage the patient's leg muscles, or require accompanying personnel to pay more manpower to help stroke patients recover their lower limbs. The recovery efficiency is low and it is very labor-intensive.

[0023] Based on the above findings, the present application proposes a lower limb rehabilitation device for stroke patients, which designs a lower limb lateral movement component, and drives the cams on both sides to rotate through a dual-axis motor in the cylindrical shaft, so that the push rod slides along the groove on the cam surface and pushes the slider to slide laterally along the cylindrical shaft, thereby driving the legs of the stroke patient to be synchronously abducted or adducted; designs a lower limb bending auxiliary component, and drives the second cam to rotate through a second cam driving motor to drive the knee joint top block to move up and down, thereby bending the knee joint of the stroke patient, or extending the electric push rod behind the foot pedal to push the foot pedal and the second connecting rod to bend the ankle of the stroke patient, and push the first connecting rod to drive the slider to rotate along the cylindrical shaft, thereby lifting or lowering the leg of the stroke patient as a whole; by designing a leg muscle massage component, the leg presses down the disc to make the calf bracket or the thigh bracket fit against the leg, and the leg muscles of the stroke patient are massaged through the rotation and compression of the massage ball. It has the advantages of comprehensive functions, easy use, labor cost saving and strong flexibility.

[0024] See also Figure 1-Figure 6 The present application discloses a lower limb rehabilitation device for stroke patients, including a bracket 1. The overall material of the bracket 1 is a metal material with high strength. The bracket 1 includes a symmetrical base 101. A plurality of universal wheels 102 are provided at the bottom of the base 101. A height-adjustable pillar 103 is fixed to the upper middle part of the base 101. In some embodiments, a plurality of through holes can be opened in the middle of the pillar 103, and bolts and other parts are inserted into the through holes at the sliding connection in the middle of the pillar 103 to fix the height-adjusted pillar 103. By arranging the universal wheels 102 at the bottom of the base 101 and arranging the pillar 103 of the bracket 1 as a height-adjustable structure, the present invention can adjust the position and height according to the bed 7 where the stroke patient is located, so that the present invention has greater flexibility; a control device 6 is fixed to the top of the pillar 103.

[0025] A cylindrical shaft 2 is fixed to one side of the support 103 near the top through an obliquely arranged connecting rod 104. The cylindrical shaft 2 is a hollow cylindrical structure as a whole, and its material is a metal material with high strength. See also Figure 7 The cylindrical shaft 2 is provided with a lower limb lateral movement component 3 for assisting lower limb rehabilitation of stroke patients. The lower limb lateral movement component 3 includes a dual-axis motor 301 fixed inside the cylindrical shaft 2. In some embodiments, the middle part of the cylindrical shaft 2 can be cut open along one side to facilitate the installation of the dual-axis motor 301 to the middle position inside the cylindrical shaft 2. It should be noted that the model of the dual-axis motor 301 used here can refer to the "large torque 86 dual-axis stepping motor" produced by Guangzhou Hanbang Motor Co., Ltd. and other products; The power output shafts at both ends of the dual-axis motor 301 are fixed with cams 302, and the two ends of the dual-axis motor 301 can rotate in opposite directions synchronously, and drive the cams 302 on both sides to rotate in opposite directions synchronously; A pair of first sliders 303 are symmetrically sleeved on the outer side of the cylindrical shaft 301. The overall structure of the first slider 303 is a hollow cylindrical structure with a cross-sectional shape larger than a half-circular ring. This design can prevent the slider from falling off when rotating or sliding along the cylindrical shaft 301, thereby improving the overall stability of the device. The material of the first slider 303 can be made of a metal material with a certain strength. A slider return spring 304 is connected between the first sliders 303. In some embodiments, a pair of slider return springs 304 can be inserted along the two ends of the cylindrical shaft 2 and adjusted to face the first slider 303 respectively, so that the slider return spring 304 can be squeezed when the first slider 303 slides horizontally along the cylindrical shaft 2. A push rod 305 is fixed to the side of the first slider 303 away from the slider return spring 304. The push rod 305 penetrates the cylindrical shaft and is slidably connected to the cam 302. Specifically, the shape of the push rod 305 can be manufactured according to actual needs, as long as the straight lines at both ends thereof are perpendicular to each other, that is, when the push rod 305 slides along the slide groove on the surface of the cam 302, the purpose of driving the first slider 303 to slide horizontally along the cylindrical shaft 2 can be achieved; in addition, refer to Fig.11 The shape of the cam 302 is close to that of a cylinder, and the surface is provided with curved grooves distributed along the circumference thereof. The end of the push rod 305 away from the first slider 303 is slidably disposed in the groove on the surface of the cam 302. When the two cams 302 rotate in opposite directions respectively driven by the dual-axis motor 301, the push rods 305 on both sides can make transverse reciprocating motions in opposite directions along the surface grooves of the cam 302, and drive the two first sliders 303 to slide laterally along the cylindrical axis 2 synchronously and in opposite directions. A first connecting rod 306 is fixed to the bottom of the first slider 303, and the end of the first connecting rod 306 away from the first slider 303 is connected to a lower limb bending auxiliary component 4 and a leg support structure for placing the legs. When the two first sliders 303 slide laterally in opposite directions along the cylindrical axis 2, the first connecting rod 306 can drive the legs of the stroke patient to move laterally in opposite directions synchronously, so that the patient's legs repeat the action of expanding and closing, thereby achieving the purpose of assisting the stroke patient's legs to recover.

[0026] The lower limb bending auxiliary component 4 includes a knee flexion mechanism 401, see Figure 8The knee flexion mechanism 401 includes a first electric push rod 4011 fixed to the bottom of one end of the first connecting rod 306 away from the first slider 303. The two sides of the moving end at the bottom of the first electric push rod 4011 are flexibly connected to the two sides of the knee joint top block 4014 through the knee joint top block flexible rope 4013. Under normal circumstances, the electric push rod 4011 is in an extended state, and the moving end of the electric push rod 4011 can be moved upward by the control device 6, even if the overall length of the electric push rod 4011 is shortened, so as to pull the knee joint top block 4014 below it upward, so that the knee joint of the stroke patient can bend, which is beneficial to the recovery of the knee joint.

[0027] The leg support structure 402 includes a calf support 4021 and a thigh support 4022, and the calf support 4021 and the thigh support 4022 are respectively connected to the two sides of the knee joint top block 4014 through the knee joint top block flexible rope 4015, and the calf support 4021 and the thigh support 4022 are both provided with elastic straps 4024 for assisting in fixing the legs.

[0028] The lower limb bending auxiliary component 4 also includes an ankle joint / leg lifting mechanism 403, which includes a connecting plate 4031 fixed to the bottom of the calf bracket 4021, away from the side of the knee joint top block 4014, and the connecting plate 4031 can be used to place the ankle part below the patient's calf; the connecting plate 4031 is above the side away from the calf bracket 4021, and a second electric push rod 4032 is fixedly arranged along the oblique direction, and a foot pedal 4033 is rotatably arranged on the connecting plate 4031 and between the electric push rod 4031 and the calf bracket 4021. Specifically, mounting seats with through holes in the middle are provided on both sides of the connecting plate 4031, and a through hole of the same size is provided near one end of the foot pedal 4033, and a rotating shaft is used to pass through the mounting seat and the through hole at one end of the foot pedal 4033, so as to rotatably install the foot pedal 4033 on the connecting plate 4031; The movable end of the second electric push rod 4032 is fixedly connected to one side of the foot pedal 4033, and the other side of the foot pedal 4033, that is, the side opposite to the position of the second electric push rod 4032, is fixed with a second connecting rod 4034, and the end of the second connecting rod 4034 away from the foot pedal 4033 is fixedly connected to the end of the first connecting rod 306 away from the first slider 303, that is, the end of the first connecting rod 306 close to the bottom. When the second electric push rod 4032 is extended, the foot pedal 4033 can be pushed, so that the ankle of the stroke patient can rotate at a certain angle. At the same time, due to the rotation of the foot pedal 4033, the second connecting rod 4034 can be pushed to move, and then the first connecting rod 306 can be pushed to rotate, so that the first slider 303 rotates along the surface of the cylindrical shaft 2, thereby driving the connecting plate 4031 where the ankle of the stroke patient is located, and the calf bracket 4021 in the leg bracket structure 402 to rotate synchronously, so as to lift the part below the patient's calf as a whole, which is beneficial to the recovery of the patient's lower limbs.

[0029] It should be noted that the first electric push rod 4011 and the second electric push rod 4032 used in the present invention are both existing electric push rod products commonly found on the market, such as the "small electric push rod" product produced by Beijing Botian Shunda Electromechanical Technology Co., Ltd.

[0030] The leg bracket structure 402 is also provided with a leg muscle massage component 5, and the muscle massage component 5 includes a plurality of massage ball fixing rods 501 evenly distributed on the calf bracket 4021 or the thigh bracket 4022, and a massage ball 502 is installed on the top of each massage ball fixing rod 501. Specifically, a cylindrical through hole is opened in the middle of the massage ball 502, and the diameter of the through hole is slightly larger than the cross-sectional diameter of the massage ball fixing rod 501. Then, the top of the massage ball fixing rod 501 is inserted into the massage ball 502 along the through hole, so that the massage ball 502 can slide up and down along the massage ball fixing rod 501, and rotate; a limit ring 503 is fixedly provided on the massage ball fixing rod 502, and a plurality of sliding connecting rods 504 are fixed on the limit ring 503; See also Fig.10Specifically, the sliding connecting rod 504 is evenly distributed and fixed along the circumferential direction of the top of the limiting ring 503 in an oblique direction at a certain angle to the vertical direction. The bottom of the massage ball 502, specifically, is provided with a plurality of curved sliding grooves 505 around the through hole opened therein. One end of the sliding connecting rod 504 away from the limiting ring 503 is slidably arranged in the sliding groove 505. The sliding grooves 505 are evenly distributed in a circular shape along the spherical surface of the massage ball 502, and the number of the sliding grooves 505 should be equal to the number of the sliding connecting rods 504. When the massage ball 502 is pressed, When the massage ball 502 is subjected to pressure and slides downward along the massage ball fixing rod 501, each sliding link 504 can be compressed downward, and the multiple sliding grooves 505 on its surface can make the massage ball 502 rotate at a certain angle through the joint action with the sliding link 504 when the massage ball 502 moves downward. The reaction force of the pressure on the massage ball 502 and the force generated by the massage ball 502 when rotating can massage the muscles of the calf and thigh of the stroke patient, which is beneficial to the recovery of the patient's leg muscles.

[0031] See also Fig. 9 A disc return spring 506 is fixed to the middle of the calf bracket 4021 or the thigh bracket 4022, a disc 507 is fixed above the disc return spring 506, pressure plates 508 are arranged on both sides below the disc 507, a side plate 509 is fixed to the end of the pressure plate 508 away from the disc 507, and the end of the side plate 509 away from the pressure plate 508 is fixedly connected to the upper part of the calf bracket 4021 or the thigh bracket 4022, and a rotating shaft 510 is fixed on both sides of the disc 507, and the connection between the pressure plate 508 and the side plate 509 is rotatably connected to the middle of the rotating shaft 510. The material of the calf bracket 4021 and the thigh bracket 4022 is plastic or plastic with a certain elasticity. Made of metal, in some implementation schemes, a layer of skin-friendly cloth can be selectively covered on the outside to enhance the patient's comfort when using the device. When the patient lies flat with his calf and thigh respectively fitted against the disc 507 on the calf support 4021 or the thigh support 4022, he can try to press his legs downward, and the disc 507 moves downward to squeeze the pressure plate 508, and drives the pressure plate 508 to rotate toward the middle, so that the calf support 4021 or the thigh support 4022 is bent in the direction of covering the leg. While exercising the patient's leg muscles, it can drive the massage balls 502 located on both sides of the calf support 4021 or the thigh support 4022 to massage both sides of the patient's legs and near the upper part.

[0032] The signal output end of the control device 6 is respectively connected to the signal input ends of the dual-axis motor 301, the first electric push rod 4011 and the second electric push rod 4032. It should be noted that the control device 6 used here is a common controller on the market, which can independently control the start and stop of the motor and the extension and retraction of the electric push rod; the dual-axis motor 301 is driven to rotate by the control device 6, thereby driving the lower limb lateral movement component 3 to drive the stroke patient's legs to abduct or adduct; the first electric push rod 4011 is driven to contract or extend, so that the knee flexion mechanism 401 in the lower limb bending auxiliary component 4 drives the patient's knee joint to bend; and the second electric push rod 4032 is driven to extend or shorten, so that the ankle joint / leg lifting mechanism 403 drives the patient's ankle to bend and the leg to be lifted as a whole, so that the method of use of the present invention is simple, and only needs to be operated by one accompanying person, which can save a lot of manpower costs. In some implementation schemes, the position of the control device 6 can also be adjusted so that the stroke patient can operate it by himself.

[0033] The stroke patient lies flat on the bed 7, and the accompanying personnel adjusts the height of the support 1 according to the height of the bed 7, and moves and adjusts the support 1 along the position of the patient's lower limbs on the bed 7; The calf support 4021 and the thigh support 4022 are worn on the corresponding positions of the patient's lower limbs, and elastic straps 4024 may be used for auxiliary fixation; The accompanying person operates the control device 6 to control the driving motor 301 in the lower limb lateral movement assembly 3 to rotate, and through the action of the cam 302 and the first slider 303, the first connecting rod 306 is driven to move laterally, thereby driving the entire structure below the first connecting rod 306 to move laterally, so that the patient's legs repeatedly perform the lateral spreading and closing actions; The operation control device 6 controls the first electric push rod 4011 in the knee flexion mechanism 401 to contract and extend, thereby driving the knee joint top block 4012 to rise and fall, so that the patient's knee moves upward to bend and return to the initial state; The operation control device 6 controls the second electric push rod 4032 in the ankle joint / leg lifting mechanism 403 to extend or shorten, thereby pushing or pulling back the foot pedal 4033, so that the patient's ankle is slightly bent. At the same time, the rotation of the foot pedal 4033 can push the second connecting rod 4034, thereby rotating the first connecting rod 306 along the cylindrical axis 2, so that the patient's lower limbs are lifted and lowered as a whole, so as to perform comprehensive auxiliary recovery of the patient's lower limbs; When the patient's legs move, pressure is applied to the calf support 4021 and the thigh support 4022, so that the leg support structure 402 covers the patient's legs as a whole. The massage balls 502 located on the calf support 4021 and the thigh support 4022 can massage the patient's leg muscles and enhance the recovery effect of the patient's lower limbs.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A lower limb rehabilitation device for stroke patients, comprising a support (1), a cylindrical shaft (2) being laterally fixed to the top of the support (1), characterized in that: A lower limb lateral movement component (3) for assisting stroke patients in lower limb rehabilitation is provided on the cylindrical shaft (2), and a lower limb bending auxiliary component (4) for assisting stroke patients in lower limb rehabilitation is provided below the cylindrical shaft (2).

2. The lower limb rehabilitation device for stroke patients according to claim 1, characterized in that: The lower limb lateral movement component (3) comprises a double-axis motor (301) fixed inside a cylindrical shaft (2), cams (302) are fixed to power output shafts at both ends of the double-axis motor (301), a pair of first sliders (303) are symmetrically sleeved on the outer side of the cylindrical shaft (2), a slider return spring (304) is connected between the first sliders (303), a push rod (305) is fixed on the side of the first slider (303) away from the slider return spring (304), the push rod (305) penetrates into the cylindrical shaft (2) and is slidably connected to the surface of the cam (302), a first connecting rod (306) is fixed to the bottom of the first slider (303), and the end of the first connecting rod (306) away from the first slider (303) is connected to a lower limb bending auxiliary component (4) and a leg bracket structure (402) for placing the legs.

3. The lower limb rehabilitation device for stroke patients according to claim 1, characterized in that: The lower limb flexion auxiliary component (4) comprises a knee flexion mechanism (401), wherein the knee flexion mechanism (401) comprises a first electric push rod (4011) fixed to the bottom of one end of the first connecting rod (306) away from the first sliding block (303), and the movable end at the bottom of the first electric push rod (4011) is flexibly connected to a knee joint top block (4012).

4. The lower limb rehabilitation device for stroke patients according to claim 2, characterized in that: The leg support structure (402) comprises a calf support (4021) and a thigh support (4022), wherein the calf support (4021) and the thigh support (4022) are flexibly connected to two sides of the knee joint top block (4012) respectively, and the calf support (4021) and the thigh support (4022) are both provided with elastic straps (4024) for assisting in fixing the legs.

5. The lower limb rehabilitation device for stroke patients according to claim 3, characterized in that: The lower limb bending auxiliary component (4) further comprises an ankle joint / leg lifting mechanism (403), wherein the ankle joint / leg lifting mechanism (403) comprises a connecting plate (4031) fixed to the bottom of the calf bracket (4021) on a side away from the knee joint top block (4012), a second electric push rod (4032) being provided on the side of the connecting plate (4031) away from the calf bracket (4021), a foot pedal (4033) being rotatably provided on the connecting plate (4031) and located between the second electric push rod (4032) and the calf bracket (4021), a movable end of the second electric push rod (4032) being fixedly connected to one side of the foot pedal (4033), a second connecting rod (4034) being fixedly connected to the other side of the foot pedal (4033), and an end of the second connecting rod (4034) away from the foot pedal (4033) being fixedly connected to an end of the first connecting rod (306) away from the first slider (303).

6. The lower limb rehabilitation device for stroke patients according to claim 2, characterized in that: The leg support structure (402) is also provided with a leg muscle massage component (5), the muscle massage component (5) comprising a plurality of massage ball fixing rods (501) evenly distributed on the calf support (4021) or the thigh support (4022), a massage ball (502) being mounted on the top of each massage ball fixing rod (501), a limiting ring (503) being provided on the massage ball fixing rod (501), a plurality of sliding connecting rods (504) being fixed on the limiting ring (503), a plurality of curved sliding grooves (505) being provided at the bottom of the massage ball (502), and an end of the sliding connecting rod (504) away from the limiting ring (503) being slidably disposed in the sliding groove (505).

7. The lower limb rehabilitation device for stroke patients according to claim 6, characterized in that: A disc return spring (506) is fixed in the middle of the calf bracket (4021) or the thigh bracket (4022), a disc (507) is fixed above the disc return spring (506), pressure plates (508) are provided on both sides below the disc (507), a side plate (509) is fixed at one end of the pressure plate (508) away from the disc (507), and one end of the side plate (509) away from the pressure plate (508) is fixedly connected to the upper part of the calf bracket (4021) or the thigh bracket (4022), a rotating shaft (510) is fixed at both sides of the disc (507), and the connection between the pressure plate (508) and the side plate (509) is rotatably connected to the middle of the rotating shaft (510).

8. The lower limb rehabilitation device for stroke patients according to claim 1, characterized in that: A control device (6) is also provided on the top of the bracket (1), and a signal output end of the control device (6) is respectively connected to the signal input ends of the dual-axis motor (301), the first electric push rod (4011), and the second electric push rod (4032).

9. The lower limb rehabilitation device for stroke patients according to claim 1, characterized in that: The bracket (1) comprises a base (101), a plurality of universal wheels (102) are provided at the bottom of the base (101), a height-adjustable support (103) is provided above the base (101), a control device (6) is fixed to the top of the support (103), and one side of the top of the support (103) is fixed to the middle of the cylindrical shaft (2) via a connecting rod (104).

Images