Rehabilitation treatment instrument for cerebral infarction hemiplegia patient

Abstract

The invention discloses a cerebral infarction hemiplegia patient rehabilitation treatment instrument which comprises a base, a seat, a foot bottom massager and a stand column are arranged on the upper end face of the base, and the stand column is sleeved with a leg movement device. Leg extenders are arranged at the front end of the seat corresponding to the legs of a human body; a treatment table is arranged on the upper end face of the stand column. An arm stretcher, a grip strength trainer, a center control platform and an electromagnetic treatment instrument are arranged on the treatment table. The central control platform comprises a control system and a physical sign monitoring system, a physical sign detection interface is arranged on the central control platform, and the central control platform is electrically connected with the foot massager, the leg exerciser, the arm stretcher and the grip strength trainer. Through the integrated design of the foot massager, the leg exerciser, the arm stretcher, the grip strength trainer and the electromagnetic therapeutic apparatus, the device is complete in function, can help a hemiplegic patient to carry out all-around rehabilitation training, can be suitable for hemiplegic patients with various illness states, and effectively reduces the labor cost.

Description

Technical Field

[0001] The invention relates to the technical field of rehabilitation instruments, in particular to a rehabilitation treatment instrument for patients with hemiplegia due to cerebral infarction. Background Art

[0002] Hemiplegia is often caused by cerebrovascular diseases, brain trauma, etc., and the patient's limb motor function is seriously impaired. Traditional rehabilitation methods, such as manual massage and rehabilitation training, are effective, but they have problems such as high labor costs and limited treatment accuracy. In addition, long-term illness makes the patient's muscles prone to atrophy and joint mobility decreased. At this time, a device that can replace manual massage and rehabilitation training is needed to perform limb activities for patients at any time.

[0003] In the prior art, the utility model patent with patent number CN2024202109756 discloses an upper limb auxiliary treatment chair for hemiplegic patients, which includes: a chair, a mounting rod, a hanging rod, an adjustment mechanism, a hanging line, a connecting line and two fixing straps; the lower end of the mounting rod is fixed to the backrest of the chair, one end of the hanging rod is rotatably mounted on the top of the mounting rod, the other end of the hanging rod is extended toward the top of the chair, one end of the hanging line is connected to the hanging rod through the adjustment mechanism, and the other end of the hanging line is connected to the connecting line, and two fixing straps for respectively binding and fixing the patient's forearm and upper arm are fixedly connected to the connecting line. This upper limb auxiliary treatment chair for hemiplegic patients has a simple structure, convenient operation, flexibility and practicality, can reduce the doctor's physical exertion during the treatment process, improve the rehabilitation treatment effect, and the patient can do weight loss training by himself, which is convenient for installation and transfer, and the cost is not high.

[0004] The above patent provides a device that can assist hemiplegic patients in treatment, which can reduce the physical exertion of doctors during the treatment process and improve the rehabilitation treatment effect; however, some long-term hemiplegic patients may also have symptoms of muscle atrophy in both upper and lower limbs. Therefore, it is necessary to provide comprehensive rehabilitation training for such hemiplegic patients, while the existing rehabilitation devices have single functions and can only perform rehabilitation training for the upper limbs, which needs further improvement. Summary of the invention

[0005] The purpose of the present invention is to provide a rehabilitation treatment instrument for hemiplegic patients due to cerebral infarction, aiming to improve the problem that the existing rehabilitation treatment devices for hemiplegic patients have single functions and can only perform rehabilitation training for the upper limbs, and are not suitable for hemiplegic patients who need all-round rehabilitation training.

[0006] The present invention is implemented as follows: A rehabilitation therapy instrument for hemiplegic patients with cerebral infarction includes a base, on the upper end surface of which a seat, a foot massager, and a column are provided. A leg exerciser is sleeved on the column; a leg stretcher is provided at the front end of the seat corresponding to the positions of the human legs; a treatment table is provided on the upper end surface of the column, and an arm stretcher, a grip strength trainer, a central control platform, and an electromagnetic therapy instrument are provided on the treatment table; the central control platform includes a control system and a physical sign monitoring system, a physical sign detection interface is provided on the central control platform, and the central control platform is electrically connected to the foot massager, the leg exerciser, the arm stretcher, and the grip strength trainer.

[0007] Preferably, the seat is sequentially provided with a seat cushion, a first hydraulic lifting column, and a support base from top to bottom. The seat cushion is lifted and installed on the support base through the first hydraulic lifting column, and the support base is seated on the base; a pressure sensor is provided inside the seat; assuming the patient's weight is G and the piston area of the first hydraulic lifting column is S, the pressure P required for the hydraulic system is:

[0008] Preferably, the leg stretcher includes a calf activity frame, a second hydraulic telescopic column, and a fixed frame; a pair of calf activity frames are rotatably provided at the front side of the bottom of the seat cushion corresponding to the positions of the human legs, and an angle sensor and a counter are provided at the rotation connection; a fixed frame is fixedly provided at the rear side of the bottom of the seat cushion, and second hydraulic telescopic columns are respectively provided on the fixed frame corresponding to the positions of the respective calf activity frames. The telescopic end of the second hydraulic telescopic column is rotatably installed on the calf activity frame; a calf support sleeve and a first strap for binding the legs are provided on the calf activity frame; assuming the telescopic length of the second hydraulic telescopic column is L, the length of the calf activity frame is a, and the horizontal distance from the fixed frame to the rotation fulcrum is b, the rotation angle θ of the calf activity frame can be calculated by the cosine theorem:

[0009]

[0010] Preferably, the column includes a fixed rod, a first locking bolt, and a telescopic rod; the telescopic rod can be telescopically inserted into the fixed rod, a first locking bolt is provided on the fixed rod, and the first locking bolt penetrates through the fixed rod and abuts against the telescopic rod; the lower end of the fixed rod is provided on the base, and the upper end of the telescopic rod is provided with a treatment table; the leg exerciser is sleeved and fixed on the fixed rod.

[0011] Preferably, the leg exerciser includes a power box, a foot pedal device is rotatably provided on the power box, and a foot fixing device is detachably installed on the foot pedal device; an installation frame body is provided at the bottom of the power box, and a plurality of matching sleeve barrels are provided at one end of the installation frame body close to the fixed rod. A second locking bolt is provided on the sleeve barrel, and the sleeve barrel is limited and sleeved on the fixed rod through the second locking bolt.

[0012] Preferably, the foot pedal device includes a first mounting shaft rotatably mounted in the power box, and a first bevel gear is provided on the shaft body; a first motor is provided inside the power box, and a second bevel gear meshing with the first bevel gear is provided on the output shaft of the first motor; both ends of the first mounting shaft penetrate through the power box and extend to the outside to be vertically mounted with rotating rods, and a foot pedal is vertically and rotatably mounted on the rotating rods; a mounting sleeve adapted to the foot pedal is provided at the bottom of the foot fixing device, and the foot fixing device is mounted on the foot pedal through the mounting sleeve; a plurality of second straps for binding the legs are provided on the foot fixing device; let the rotational speed of the output shaft of the first motor be n 1 , the number of teeth of the first bevel gear is z 1 , the number of teeth of the second bevel gear is z 2 , then the rotational speed n 2 of the foot pedal device is:

[0013] Preferably, the arm stretcher includes a stretcher body and an arm movable frame; a protective pad and a third strap for binding the arm are provided on the upper end surface of the stretcher body; the lower end of the arm movable frame is rotatably mounted at one end of the stretcher body away from the seat, and a second angle sensor and a second counter are provided at the rotation connection; an arm support sleeve and a fourth strap for binding the arm are provided on the upper end frame of the arm movable frame, and a mounting bolt is provided on the arm support sleeve, and the arm support sleeve is detachably mounted on the arm movable frame through the mounting bolt.

[0014] Preferably, a second motor is provided inside the stretcher body, and the output shaft of the second motor penetrates through the stretcher body and extends to the outside to be provided with a second gear; a second mounting shaft is fixedly provided at the lower end of the arm movable frame, and the arm movable frame is rotatably mounted at one end of the stretcher body away from the seat through the second mounting shaft, and a first gear meshing with the second gear is provided at one end of the second mounting shaft penetrating through the stretcher body.

[0015] Preferably, the grip trainer includes a mounting frame body, a resistance rod and a resistance spring; a lead screw shaft is horizontally rotatably mounted in the mounting frame body, and the lead screw shaft is connected to a third motor; a C-shaped grip frame body is fixedly provided at one end of the mounting frame body close to the seat, and grip pull rings are slidably provided at both ends of the C-shaped grip frame body; a contact sensor is provided between the opposite end faces of the C-shaped grip frame body and the grip pull rings; one end of the resistance rod is rotatably mounted on the mounting frame body, and the other end is rotatably connected to the grip pull ring on the same side; one end of the resistance spring is provided at the rod body position of the resistance rod, and the other end is adjustably provided through the lead screw shaft; let the elastic coefficient of the resistance spring be k and the initial stretching length be x 0, if the additional stretching amount adjusted by the lead screw shaft is Δx, then the resistance F during grip strength training is: F = k(x 0 +Δx).

[0016] Preferably, the grip strength trainer further includes a threaded sleeve. Corresponding to the positions of the respective resistance springs on the lead screw shaft, there are threaded sleeves provided in one-to-one correspondence. The end of the resistance spring away from the resistance rod is connected and arranged on the threaded sleeve; assuming the pitch of the lead screw shaft is p and the number of turns of the third motor driving the lead screw shaft to rotate is n, then the displacement amount Δx of the threaded sleeve is: Δx = n·p; by adjusting n through the control system, the resistance F can be precisely controlled to meet the grip strength training requirements of different patients.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. By integrating the foot massager, leg exerciser, arm stretcher, grip strength trainer and electromagnetic therapy instrument, the device of the present invention has complete functions, can help hemiplegic patients carry out comprehensive rehabilitation training, is applicable to hemiplegic patients with various conditions, and effectively reduces the labor cost.

[0019] 2. By providing a seat that can be lifted and lowered, it is convenient to adjust the appropriate seat height according to the height of hemiplegic patients, and it is applicable to hemiplegic patients of this body type.

[0020] 3. Through the electromagnetic therapy instrument of the present invention, when hemiplegic patients are performing limb rehabilitation training, at the same time, the nerves and muscles can be stimulated by low-frequency pulsed current, promoting local blood circulation, improving the nutritional metabolism of muscles, helping to restore nerve function, promoting the recovery of the motor function of hemiplegic limbs, and enhancing the rehabilitation effect. Description of the Drawings

[0021] Figure 1 is the left three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 is the right three-dimensional structural schematic diagram of the present invention;

[0023] Figure 3 is the three-dimensional structural schematic diagram of the seat and leg stretcher of the present invention;

[0024] Figure 4 is the three-dimensional structural schematic diagram of the leg exerciser of the present invention;

[0025] Figure 5 is the internal structural schematic diagram of the leg exerciser of the present invention;

[0026] Figure 6 is the structural schematic diagram of the foot fixing device of the present invention;

[0027] Figure 7It is a three-dimensional structural schematic diagram of the arm stretcher of the present invention;

[0028] Figure 8 It is a three-dimensional structural schematic diagram of the transmission structure in the arm stretcher of the present invention;

[0029] Figure 9 It is a three-dimensional structural schematic diagram of the grip strength trainer of the present invention;

[0030] Figure 10 It is a sectional structural schematic diagram of the grip strength trainer of the present invention.

[0031] In the figure: 1, base; 2, seat; 201, support base; 202, first hydraulic lifting column; 203, seat; 3, leg stretcher; 301, calf movable frame; 302, second hydraulic telescopic column; 303, fixed frame; 304, calf support sleeve; 305, first strap; 4, foot massager; 5, column; 501, fixed rod; 502, first locking bolt; 503, telescopic rod; 6, treatment table; 7, leg exerciser; 701, power box; 702, foot pedal device; 703, foot fixing device; 704, mounting frame body; 705, mounting sleeve; 706, second locking bolt; 707, first mounting shaft; 708, rotating rod; 709, foot pedal; 710, first bevel gear; 711, first motor; 712, second bevel gear; 713, second strap; 714, mounting sleeve; 8, arm stretcher; 801, stretcher body; 802, protective pad; 803, third strap; 804, arm movable frame; 805, arm support sleeve; 806, mounting bolt; 807, fourth strap; 808, second mounting shaft; 809, first gear; 810, second motor; 811, second gear; 9, grip strength trainer; 901, mounting frame body; 902, lead screw shaft; 903, C-shaped grip frame body; 904, grip pull ring; 905, resistance rod; 906, resistance spring; 907, threaded sleeve; 908, third motor; 10, central control platform; 1001, physical sign detection interface; 11, electromagnetic therapeutic apparatus. Detailed implementation manners

[0032] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0033] The following will be further described in conjunction with the accompanying drawings and specific embodiments:

[0034] Example 1

[0035] As Figure 1 、 Figure 2 and Figure 3 shown, a rehabilitation treatment instrument for hemiplegic patients with cerebral infarction includes a base 1. A seat 2, a foot massager 4 and a column 5 are arranged on the upper end surface of the base 1. A leg exerciser 7 is sleeved on the column 5; the foot massager 4 is an airbag type foot massager with the model number YH - 2003; the feet can be massaged by the foot massager 4 when performing upper limb exercises. A leg stretcher 3 is arranged at the front end of the seat 2 corresponding to the positions of the human legs; the distance between the leg exerciser 7 and the seat 2 is set and determined through multiple experiments to facilitate the normal use of the leg exerciser 7 by the user; the seat 2 is sequentially provided with a seat cushion 203, a first hydraulic lifting column 202 and a support base 201 from top to bottom. The seat cushion 203 is arranged on the support base 201 in a lifting manner through the first hydraulic lifting column 202, and the support base 201 is located on the base 1; a pressure sensor is arranged inside the seat cushion 203. By setting the pressure sensor, it can accurately detect whether there is someone on the seat cushion 203, so as to accurately judge whether the device is in normal use. Let the patient's weight be G and the piston area of the first hydraulic lifting column 202 be S, then the pressure P required for the hydraulic system is: The seat 2 can be arranged in a lifting manner through the first hydraulic lifting column 202, which is convenient for adjusting to a suitable height according to the user's height during use. The leg stretcher 3 includes a calf activity frame 301, a second hydraulic telescopic column 302 and a fixing frame 303; a pair of calf activity frames 301 are rotatably arranged at the front side of the bottom of the seat cushion 203 corresponding to the positions of the human legs, and a first angle sensor and a first counter are arranged at the rotation connection; the angle at which the human calf is lifted through the calf activity frame 301 can be accurately detected by the first angle sensor, and the exercise times and time of the user can be recorded in real time by the first counter, so as to customize an accurate exercise plan for the user. The calf activity frame 301 is arranged at the front side of the bottom of the seat cushion 203, which is convenient for the user to sit on the seat cushion 203 and lift the calf through the calf activity frame 301 for activities. A fixing frame 303 is fixedly arranged at the rear side of the bottom of the seat cushion 203, and second hydraulic telescopic columns 302 are respectively arranged at the positions of the fixing frame 303 corresponding to each calf activity frame 301. The telescopic ends of the second hydraulic telescopic columns 302 are rotatably installed on the calf activity frame 301; a calf support sleeve 304 and a first strap 305 for binding the legs are arranged on the calf activity frame 301. Let the telescopic length of the second hydraulic telescopic column 302 be L, the length of the calf activity frame 301 be a, and the horizontal distance from the fixing frame 303 to the rotation fulcrum be b, then the rotation angle θ of the calf activity frame 301 can be calculated by the cosine theorem: When in use, the user places the lower leg on the lower leg movable frame 301 and fixes the lower leg on the lower leg movable frame 301 through the first strap 305. Then, the lower leg movable frame 301 can be controlled by the second hydraulic telescopic column 302 to swing back and forth, so as to stretch the user's leg. A treatment table 6 is arranged on the upper end surface of the column 5. An arm stretcher 8, a grip strength trainer 9, a central control platform 10 and an electromagnetic therapy instrument 11 are arranged on the treatment table 6. The electromagnetic therapy instrument 11 is an electromagnetic therapy instrument with the model ST-BⅠ; low-frequency pulsed current is sent to the hemiplegic part of the patient through the electrode patch, which can stimulate nerves and muscles, cause muscle contraction, promote local blood circulation, improve the nutritional metabolism of muscles, prevent muscle atrophy, and at the same time can also stimulate nerve conduction, help restore nerve function, and promote the recovery of the motor function of the hemiplegic limb. Therefore, when exercising the upper and lower limbs, electromagnetic therapy work can be carried out synchronously by pasting the electrode patch at the position where the user needs treatment.

[0036] As Figure 1 , Figure 4 and Figure 5 shown, the column 5 includes a fixed rod 501, a first locking bolt 502 and a telescopic rod 503; the telescopic rod 503 is telescopically inserted into the fixed rod 501, and a first locking bolt 502 is arranged on the fixed rod 501. The first locking bolt 502 passes through the fixed rod 501 and abuts against the telescopic rod 503; the lower end of the fixed rod 501 is arranged on the base 1, and the upper end of the telescopic rod 503 is provided with a treatment table 6; by setting the column 5 to be a liftable structure, the height of the treatment table 6 can be conveniently adjusted. The leg exerciser 7 is sleeved and fixed on the fixed rod 501. The leg exerciser 7 includes a power box 701, a foot pedal device 702 is rotatably arranged on the power box 701, and a foot fixing device 703 is detachably installed on the foot pedal device 702.

[0037] As Figure 1 , Figure 5 and Figure 6As shown in the figure, the foot pedal device 702 includes a first mounting shaft 707 which is rotatably mounted in the power box 701, and a first bevel gear 710 is provided on the shaft body; a first motor 711 is arranged inside the power box 701, and a second bevel gear 712 meshing with the first bevel gear 710 is provided on the output shaft of the first motor 711; both ends of the first mounting shaft 707 penetrate through the power box 701 and extend to the outside to be vertically installed with a rotating rod 708, and a foot pedal 709 is vertically and rotatably installed on the rotating rod 708; the foot pedal device 702 adopts a structure similar to that of a self-connected foot pedal; thus, it is convenient for the user to place both feet on the foot pedal device 702 for activities; a mounting sleeve 714 adapted to the foot pedal 709 is provided at the bottom of the foot fixing device 703, and the foot fixing device 703 is installed on the foot pedal 709 through the mounting sleeve 714; a plurality of second straps 713 for binding the legs are provided on the foot fixing device 703. Let the rotational speed of the output shaft of the first motor 711 be n 1 , the number of teeth of the first bevel gear 710 be z 1 , the number of teeth of the second bevel gear 712 be z 2 , then the rotational speed n 2 of the foot pedal device 702 is: The user binds both feet to the foot fixing device 703 through the second straps 713, and then the foot fixing device 703 can be sleeved on the foot pedal 709 through the mounting sleeve 714 at the bottom. The mounting sleeve 714 is made of a material with high hardness and no deformation, and can be stably sleeved on the foot pedal 709, so as to prevent misalignment, deformation and detachment between the mounting sleeve 714 and the foot pedal 709; and the mounting sleeve 714 is inserted horizontally on the foot pedal 709, and its moving direction is perpendicular to the moving direction of the foot pedal, so it will not fall off. A mounting frame body 704 is provided at the bottom of the power box 701. A plurality of matching mounting sleeves 705 are provided at one end of the mounting frame body 704 close to the fixed rod 501. A second locking bolt 706 is provided on the mounting sleeve 705, and the mounting sleeve 705 is limited and sleeved on the fixed rod 501 through the second locking bolt 706. The mounting frame body 704 is sleeved on the fixed rod 501 through the mounting sleeve 705, which can facilitate the user to adjust the height of the leg exerciser 7, so as to be conveniently applicable to users with different leg lengths. At the same time, the mounting sleeve 705 is limited by the second locking bolt 706, making the adjustment more convenient.

[0038] Such as Figure 1 , Figure 7 and Figure 8As shown in the figure, the arm stretcher 8 includes a stretcher body 801 and an arm movable frame 804; a protective pad 802 and a third strap 803 for binding the arm are provided on the upper end surface of the stretcher body 801; the lower end of the arm movable frame 804 is rotatably installed at one end of the stretcher body 801 away from the seat 2, and a second angle sensor and a second counter are provided at the rotation connection; the angle at which the arm is lifted through the arm movable frame 804 can be accurately detected by the second angle sensor, and the number of exercise times and time of the user can be recorded in real time by the second counter, so that an accurate exercise plan can be customized for the user. A second motor 810 is provided inside the stretcher body 801, and the output shaft of the second motor 810 penetrates through the stretcher body 801 and extends to the outside to be provided with a second gear 811; a second mounting shaft 808 is fixedly provided at the lower end of the arm movable frame 804, and the arm movable frame 804 is rotatably installed at one end of the stretcher body 801 away from the seat 2 through the second mounting shaft 808. One end of the second mounting shaft 808 penetrates through the stretcher body 801 and is provided with a first gear 809 meshing with the second gear 811. The second motor 810 is controlled by programming to perform reciprocating rotation at a certain angle, so as to drive the arm movable frame 804 to swing back and forth. An arm support sleeve 805 and a fourth strap 807 for binding the arm are provided on the upper end frame of the arm movable frame 804. An installation bolt 806 is provided on the arm support sleeve 805, and the arm support sleeve 805 is detachably installed on the arm movable frame 804 through the installation bolt 806.

[0039] As Figure 1 , Figure 9 and Figure 10 shown in the figure, the grip strength trainer 9 includes a mounting frame body 901, a resistance rod 905 and a resistance spring 906; a lead screw shaft 902 is horizontally rotatably installed in the mounting frame body 901, and the lead screw shaft 902 is connected to a third motor 908; a C-shaped grip frame body 903 is fixedly provided at one end of the mounting frame body 901 close to the seat 2, and grip pull rings 904 are slidably provided at both ends of the C-shaped grip frame body 903; a contact sensor is provided between the opposite end faces of the C-shaped grip frame body 903 and the grip pull rings 904; one end of the resistance rod 905 is rotatably installed on the mounting frame body 901, and the other end is rotatably connected to the grip pull ring 904 on the same side; one end of the resistance spring 906 is provided at the rod body position of the resistance rod 905, and the other end is adjustable through the lead screw shaft 902. Let the elastic coefficient of the resistance spring 906 be k, the initial stretching length be x 0 , and the additional stretching amount adjusted by the lead screw shaft 902 be Δx, then the resistance F during grip strength training is: F = k(x 0+Δx); The grip strength trainer 9 further includes a threaded sleeve 907. Corresponding to the positions of the respective resistance springs 906 on the lead screw shaft 902, there are threaded sleeves 907 provided in one-to-one correspondence. One end of the resistance spring 906 away from the resistance rod 905 is connected and arranged on the threaded sleeve 907. Let the pitch of the lead screw shaft 902 be p, and the number of turns of the third motor 908 driving the lead screw shaft 902 to rotate be n. Then the displacement Δx of the threaded sleeve (907) is: Δx = n·p; By adjusting n through the control system, the resistance F can be accurately controlled to meet the grip strength training needs of different patients; When the user is performing grip strength training, by simultaneously holding the C-shaped grip holder 903 and the grip pull ring 904 and pulling them closer to each other, grip strength training can be achieved. And when the grip pull ring 904 is tightly held, the grip pull ring 904 will drive the resistance rod 905 to rotate along the other end. During the rotation process, the resistance spring 906 will be stretched, thereby generating a certain gripping resistance to achieve the training purpose; At the same time, when it is necessary to adjust the resistance size, the third motor 908 can be used to control the rotation of the lead screw shaft 902. The rotation of the lead screw shaft 902 can drive the threaded sleeve 907 to move, thereby stretching the length of the resistance spring 906 and making the resistance generated by the resistance spring 906 on the grip pull ring 904 greater, which can facilitate the operator to rotate the lead screw shaft 902

[0040] As Figure 1 shown, the central control platform 10 includes a control system and a physical sign monitoring system. A physical sign detection interface 1001 is provided on the central control platform 10. The central control platform 10 is electrically connected to the foot massager 4, the leg exerciser 7, the arm stretcher 8, and the grip strength trainer 9. The central control platform 10 uses an intelligent device, a tablet computer with a display; The control system controls the start and stop of the foot massager 4, the leg exerciser 7, and the arm stretcher 8 through software on the cloud server through programming. A pressure sensor is arranged inside the seat 203. By setting the pressure sensor, it can accurately detect whether there is someone on the seat 203, so as to accurately judge whether the device is in normal use. At the same time, the pressure sensor is electrically connected to the control system, and the pressure signal can be transmitted to the control system through the pressure sensor, so as to determine that the user is using it normally. At the same time, when the user leaves or falls from the seat, the pressure sensor can timely transmit the pressure change to the control system, and the control system can timely control the relevant training equipment to stop urgently to prevent harm to the user.

[0041] As Figure 4As shown, the first angle sensor can accurately detect the angle at which the human calf is lifted through the calf moving frame 301, and the first counter can record the exercise times and duration of the user in real time, so as to customize an accurate exercise plan for the user. The second angle sensor can accurately detect the angle at which the arm is lifted through the arm moving frame 804, and the second counter can record the exercise times and duration of the user in real time, so as to customize an accurate exercise plan for the user. Both the first angle sensor and the second angle sensor are magnetoelectric angle sensors, which work by using the magnetoresistance effect or Hall effect. When the permanent magnet rotates with the rotating shaft of the exercise device, the magnetic field strength and direction at the position of the Hall element change. According to the Hall effect, the Hall element will generate a Hall voltage related to the magnetic field strength and direction. By measuring the change of the Hall voltage, the rotation angle of the permanent magnet can be calculated, and then the angle data of the exercise device can be obtained; and it is electrically connected to the control system for convenient data collection. Both the first counter and the second counter are photoelectric counters, which mainly consist of a light source, a photoelectric sensor and a signal processing circuit. On the movement path of the exercise device, a component with a light-shielding sheet or a reflecting sheet is set. The light emitted by the light source shines on the photoelectric sensor. When the exercise device drives the light-shielding sheet or the reflecting sheet to move, it will block or reflect the light. The photoelectric sensor generates an electrical signal according to the change of the received optical signal. Each time the light is blocked or reflected, an electrical pulse signal will be generated. The signal processing circuit counts and processes these electrical pulse signals to count the number of arm movements. And it is electrically connected to the control system for convenient data collection.

[0042] As Figure 9 and Figure 10As shown in the figure, a third motor 908 is connected to the lead screw shaft 902; at one end of the mounting frame 901 close to the seat 2, a C-shaped grip frame 903 is fixedly arranged, and grip force pull rings 904 are slidably arranged at both ends of the C-shaped grip frame 903; a distance sensor is arranged between the opposite end faces of the C-shaped grip frame 903 and the grip force pull rings 904; the distance sensor is a capacitive distance sensor, which utilizes the relationship between the capacitance of a parallel plate capacitor and the distance between the plates. The two pinched parts of the C-shaped grip frame 903 and the grip force pull rings 904 are respectively used as the two plates of the capacitor. When the grip force pull rings 904 are pinched and move towards the C-shaped grip frame 903, the distance between the two plates changes. By measuring the change in capacitance, the change in the distance between the plates can be calculated, thereby knowing the pinching degree of the gripper; and the distance sensor is electrically connected to the control system. Through the programming setting of the control system, an appropriate pinching distance can be set in advance to ensure that users with different strengths can use an appropriate pinching force; when the resistance of the grip trainer 9 is too small, the moving distance when the user pinches the grip force pull rings 904 will be greater than the set distance. Thus, the control system can control the third motor 908 to manipulate the movement of the lead screw shaft, increase the initial stretching length of the resistance spring 906, thereby increasing the resistance. When the moving distance when the user pinches the grip force pull rings 904 is less than the set distance, the control system can control the third motor 908 to manipulate the movement of the lead screw shaft, reduce the initial stretching length of the resistance spring 906, thereby reducing the resistance; thus, the control system can automatically detect the exercise effect of the user, and can automatically adjust the grip trainer 9 to an appropriate exercise resistance according to the grip strength of the user.

[0043] As Figure 1 shown, the physical sign monitoring system is composed of healthcare software that monitors and records various physiological sign data of the human body; and is electrically connected to a finger clip probe through a physical sign detection interface 1001, facilitating the direct detection of the user's physical state through the probe; and for the received and transmitted physical sign data, algorithms and models are used to deeply analyze and process the data. Through the spectral analysis of the heart rate data, the autonomous nerve function of the heart is evaluated. Doctors can adjust the rehabilitation training plan on the control system according to the data feedback by the physical sign monitoring system, including training intensity, time, electrical stimulation parameters, etc. In addition, the physical sign monitoring system can also be connected to the hospital information management system to realize the remote storage and sharing of the patient's rehabilitation data, facilitating doctors to consult and analyze at any time.

[0044] Embodiment 2

[0045] As Figure 1 、 Figure 2 and Figure 3As shown in the figure, a rehabilitation therapy instrument for hemiplegic patients with cerebral infarction includes a base 1. A seat 2, a foot massager 4 and a column 5 are arranged on the upper end surface of the base 1. A leg exerciser 7 is sleeved on the column 5. A leg stretcher 3 is arranged at the front of the seat 2 corresponding to the positions of the human legs. The seat 2 is successively provided with a seat cushion 203, a first hydraulic lifting column 202 and a support base 201 from top to bottom. The seat cushion 203 is arranged on the support base 201 through the first hydraulic lifting column 202 in a lifting manner, and the support base 201 is arranged on the base 1. A pressure sensor is arranged inside the seat cushion 203. Let the patient's weight be G and the piston area of the first hydraulic lifting column 202 be S. Then the pressure P required for the hydraulic system is: The leg stretcher 3 includes a calf activity frame 301, a second hydraulic telescopic column 302 and a fixed frame 303. A pair of calf activity frames 301 are rotatably arranged at the front side of the bottom of the seat cushion 203 corresponding to the positions of the human legs, and an angle sensor and a counter are arranged at the rotation connection. A fixed frame 303 is fixedly arranged at the rear side of the bottom of the seat cushion 203. Second hydraulic telescopic columns 302 are respectively arranged on the fixed frame 303 corresponding to the positions of the calf activity frames 301. The telescopic ends of the second hydraulic telescopic columns 302 are rotatably installed on the calf activity frames 301. A calf support sleeve 304 and a first strap 305 for binding the legs are arranged on the calf activity frames 301. Let the telescopic length of the second hydraulic telescopic column 302 be L, the length of the calf activity frame 301 be a, and the horizontal distance from the fixed frame 303 to the rotation fulcrum be b. Then the rotation angle θ of the calf activity frame 301 can be calculated by the cosine theorem: A treatment table 6 is arranged on the upper end surface of the column 5. An arm stretcher 8, a grip strength trainer 9, a central control platform 10 and an electromagnetic therapy instrument 11 are arranged on the treatment table 6. A physical sign detection interface 1001 is arranged on the central control platform 10. The central control platform 10 is electrically connected to the foot massager 4, the leg exerciser 7, the arm stretcher 8 and the grip strength trainer 9.

[0046] As Figure 1 、 Figure 4 and Figure 5 shown, the column 5 includes a fixed rod 501, a first locking bolt 502 and a telescopic rod 503. The telescopic rod 503 can be telescopically inserted into the fixed rod 501. A first locking bolt 502 is arranged on the fixed rod 501. The first locking bolt 502 penetrates through the fixed rod 501 and abuts against the telescopic rod 503. The lower end of the fixed rod 501 is arranged on the base 1, and the upper end of the telescopic rod 503 is provided with the treatment table 6. The leg exerciser 7 is sleeved and fixed on the fixed rod 501. The leg exerciser 7 includes a power box 701. A foot pedal device 702 is rotatably arranged on the power box 701. A foot fixing device 703 is detachably installed on the foot pedal device 702.

[0047] As Figure 1 、 Figure 5 and Figure 6As shown, the foot pedal device 702 includes a first mounting shaft 707, which is rotatably mounted in the power box 701, and a first bevel gear 710 is provided on the shaft body; a first motor 711 is provided inside the power box 701, and a second bevel gear 712 meshing with the first bevel gear 710 is provided on the output shaft of the first motor 711; both ends of the first mounting shaft 707 penetrate through the power box 701 and extend to the outside to vertically mount a rotating rod 708, and a foot pedal 709 is vertically and rotatably mounted on the rotating rod 708; the bottom of the foot fixing device 703 is provided with a mounting sleeve 714 adapted to the foot pedal 709, and the foot fixing device 703 is mounted on the foot pedal 709 through the mounting sleeve 714; a plurality of second straps 713 for binding the legs are provided on the foot fixing device 703. Let the rotational speed of the output shaft of the first motor 711 be n 1 , the number of teeth of the first bevel gear 710 is z 1 , the number of teeth of the second bevel gear 712 is z 2 , then the rotational speed n 2 of the foot pedal device 702 is: A mounting frame body 704 is provided at the bottom of the power box 701. A plurality of matching sleeve barrels 705 are provided at one end of the mounting frame body 704 close to the fixed rod 501. A second locking bolt 706 is provided on the sleeve barrel 705, and the sleeve barrel 705 is limited and sleeved on the fixed rod 501 through the second locking bolt 706.

[0048] As Figure 1 , Figure 7 and Figure 8 shown, the arm stretcher 8 includes a stretcher body 801 and an arm movable frame 804; a protective pad 802 and a third strap 803 for binding the arm are provided on the upper end surface of the stretcher body 801; the lower end of the arm movable frame 804 is rotatably mounted at one end of the stretcher body 801 away from the seat 2, and a second angle sensor and a second counter are provided at the rotation connection; a second motor 810 is provided inside the stretcher body 801, and the output shaft of the second motor 810 penetrates through the stretcher body 801 and extends to the outside to be provided with a second gear 811; a second mounting shaft 808 is fixedly provided at the lower end of the arm movable frame 804, and the arm movable frame 804 is rotatably mounted at one end of the stretcher body 801 away from the seat 2 through the second mounting shaft 808. One end of the second mounting shaft 808 penetrates through the stretcher body 801 to be provided with a first gear 809 meshing with the second gear 811. An arm support sleeve 805 and a fourth strap 807 for binding the arm are provided on the upper end frame of the arm movable frame 804. A mounting bolt 806 is provided on the arm support sleeve 805, and the arm support sleeve 805 is detachably mounted on the arm movable frame 804 through the mounting bolt 806.

[0049] As Figure 1 , Figure 9 andFigure 10 As shown in the figure, the grip strength trainer 9 includes a mounting frame 901, a resistance rod 905, and a resistance spring 906. A lead screw shaft 902 is horizontally rotatably mounted in the mounting frame 901, and the lead screw shaft 902 is connected to a third motor 908. One end of the mounting frame 901 close to the seat 2 is fixedly provided with a C-shaped grip frame 903, and grip pull rings 904 are slidably arranged at both ends of the C-shaped grip frame 903. A contact sensor is arranged between the opposite end faces of the C-shaped grip frame 903 and the grip pull rings 904. One end of the resistance rod 905 is rotatably mounted on the mounting frame 901, and the other end is rotatably connected to the grip pull ring 904 on the same side. One end of the resistance spring 906 is arranged at the rod body position of the resistance rod 905, and the other end is adjustably arranged through the lead screw shaft 902. Let the elastic coefficient of the resistance spring 906 be k, and the initial stretching length be x 0 , and the additional stretching amount adjusted by the lead screw shaft 902 be Δx. Then the resistance F during grip strength training is: F = k(x 0 + Δx); The grip strength trainer 9 further includes a threaded sleeve 907. Threaded sleeves 907 corresponding to the positions of the respective resistance springs 906 are arranged on the lead screw shaft 902, and the end of the resistance spring 906 away from the resistance rod 905 is connected and arranged on the threaded sleeve 907. Let the pitch of the lead screw shaft 902 be p, and the number of turns of the lead screw shaft 902 driven by the third motor 908 be n. Then the displacement amount Δx of the threaded sleeve (907) is: Δx = n·p; By adjusting n through the control system, the resistance F can be accurately controlled to meet the grip strength training requirements of different patients.

[0050] As Figure 3As shown, a data processing module is integrated at the bottom of the seat 203 of the seat 2. The data processing module is connected to a heart rate monitoring sensor, a sitting posture deviation sensor, a vibration feedback module, a power supply module, and a wireless communication module. The heart rate monitoring sensor uses a high-precision PPG (photoplethysmogram) sensor, which is embedded in the area of the seat cushion of the seat 2 that contacts the human body, such as under the fabric on the surface of the seat 2. The PPG sensor emits green light to irradiate the skin, utilizes the light absorption characteristics of hemoglobin in the blood, receives the reflected light and converts it into an electrical signal, thereby monitoring the heart rate in real time. This sensor has the characteristics of small size, low power consumption, and high precision, and can accurately capture the changes in heart rate. The sitting posture deviation sensor adopts the method of distributing multiple pressure sensor matrices on the seat cushion and backrest of the seat 2. The pressure sensor uses a thin-film pressure sensor, which has the advantages of being thin, light, and flexible, and can be evenly distributed at different positions of the seat 2, such as the front, middle, and rear of the seat cushion, and the upper, middle, and lower parts of the backrest, etc. These pressure sensors can sense the pressure distribution of the human body on different areas of the seat 2 in real time, and judge whether the sitting posture has deviated by the change of pressure data. The data processing module uses a high-performance microprocessor, such as an ARM Cortex-M series chip. This module is responsible for receiving the heart rate data and pressure data collected by the sensors, and performing real-time processing and analysis on the data. For the heart rate data, the microprocessor will compare the real-time heart rate value with the preset normal heart rate range (such as the normal heart rate of adults is 60-100 beats per minute). When the heart rate exceeds the normal range, it is judged that the heart rate is abnormal. For the sitting posture deviation data, the microprocessor will calculate the difference between the current pressure distribution and the normal model according to the preset normal sitting posture pressure distribution model (established by learning and analyzing a large amount of normal sitting posture data). When the difference exceeds the preset threshold, it is judged that the sitting posture has deviated. At the same time, the data processing module also has a data storage function, which can store historical data in the local memory, and the data processing module cooperates with the wireless communication module and transmits the data to the central control platform 10 through wireless communication methods such as Bluetooth or Wi-Fi, so that users can view and manage it. The vibration feedback module embeds a vibration motor in the seat cushion or backrest of the seat 2. When an abnormal situation occurs, the data processing module will control the vibration motor to generate vibrations with specific frequencies and intensities, and remind the user through tactile feedback. The power supply module uses a rechargeable lithium battery, and the battery capacity is selected according to the power consumption and usage time requirements of the module to ensure that the monitoring function of the seat 2 can work continuously for a certain period of time, such as 8-12 hours. At the same time, the seat 2 is equipped with a charging interface, such as a USB interface, which is convenient for users to charge the battery. In addition, the power supply unit also has a low battery detection and protection function. When the battery power is lower than the preset threshold, it will be fed back to the central control platform 10 through the wireless communication module to remind the user to charge, so as to avoid the module stopping working due to insufficient power. The specific working process is as follows: The heart rate monitoring sensor and the sitting posture deviation sensor collect heart rate data and pressure data in real time, and transmit the data to the data processing unit.The data processing module performs preprocessing such as filtering and amplifying the collected data, and then compares and analyzes it with the preset normal range and model to determine whether there are abnormal heart rates or sitting posture offsets. When an abnormal situation is detected, the data processing module controls the vibration feedback module to give corresponding vibration feedback to remind the user to pay attention. The data processing module transmits the real-time data and historical data to the central control platform 10 via wireless communication and stores them in the local memory for subsequent viewing and analysis by the user.

[0051] The working principle of the present invention: When in use, the user first adjusts the seat 2 to a suitable height through the first hydraulic lifting column 202. Place the calves on the calf moving frame 301 and fix the calves on the calf moving frame 301 through the first strap 305. Then, the calf moving frame 301 can be controlled to swing back and forth through the second hydraulic telescopic column 302, so as to stretch the user's legs. When using the leg exerciser 7, bind the feet to the foot fixing device 703 through the second strap 713, and then the foot fixing device 703 can be sleeved on the foot pedal 709 through the mounting sleeve 714 at the bottom, so that the foot pedal 709 can be driven to rotate by the first motor 711, and the lower limbs can be driven to move through the foot fixing device 703. When using the arm stretcher 8, the arm can be placed in the stretcher body 801 and bound through the third strap 803. Then, the second motor 810 can be driven to reciprocate at a certain angle to drive the arm to stretch back and forth. At the same time, when performing various limb exercises, low-frequency pulsed current can be sent to the hemiplegic part of the patient through the electrode patch, so that electromagnetic therapy work can be carried out synchronously when exercising the upper and lower limbs. At the same time, a pressure sensor is arranged inside the seat cushion 203. By setting the pressure sensor, it can accurately detect whether there is someone on the seat cushion 203, so as to accurately judge whether the device is in normal use. At the same time, the pressure sensor is electrically connected to the control system, and the pressure signal can be transmitted to the control system through the pressure sensor, so as to determine that the user is using it normally. At the same time, when the user leaves or falls from the seat, the pressure sensor can timely transmit the pressure change to the control system, and the control system can timely control the relevant training equipment to stop urgently. The distance sensor is electrically connected to the control system. Through the programming setting of the control system, a suitable pinching distance can be set in advance to ensure that users with different strengths can use a suitable pinching force.

[0052] In summary, by integrating the foot massager 4, leg exerciser 7, arm stretcher 8, grip strength trainer 9 and electromagnetic therapy apparatus 11, the present invention makes the device fully functional, which can help hemiplegic patients conduct comprehensive rehabilitation training, be applicable to hemiplegic patients with various conditions, and effectively reduce the labor cost. By providing the adjustable seat 2, the appropriate seat height can be conveniently adjusted according to the height of the hemiplegic patient, which is applicable to hemiplegic patients of this body type. Through the electromagnetic therapy apparatus 11, when the hemiplegic patient conducts limb rehabilitation training, the nerve and muscle can be stimulated by low-frequency pulsed current at the same time, promoting local blood circulation, improving the nutritional metabolism of muscles, helping to restore nerve function, promoting the recovery of the motor function of the hemiplegic limb, and enhancing the rehabilitation effect.

[0053] The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rehabilitation treatment apparatus for hemiplegic patients due to cerebral infarction, comprising a base (1), characterized in that: The upper end surface of the base (1) is provided with a seat (2), a foot massager (4) and a column (5), and the column (5) is provided with a leg exerciser (7); the front end of the seat (2) is provided with a leg stretcher (3) at a position corresponding to the legs of a human body; the upper end surface of the column (5) is provided with a treatment table (6), and the treatment table (6) is provided with an arm stretcher (8), a grip trainer (9), a central control platform (10) and an electromagnetic treatment device (11); the central control platform (10) includes a control system and a vital sign monitoring system, and the central control platform (10) is provided with a vital sign detection interface (1001), and the central control platform (10) is electrically connected to the foot massager (4), the leg exerciser (7), the arm stretcher (8) and the grip trainer (9).

2. The rehabilitation treatment instrument for hemiplegic patients due to cerebral infarction according to claim 1, characterized in that: The chair (2) is provided with a seat (203), a first hydraulic lifting column (202) and a support seat (201) in order from top to bottom; the seat (203) is lifted and lowered on the support seat (201) by the first hydraulic lifting column (202); the support seat (201) is seated on the base (1); a pressure sensor is provided inside the seat (203); assuming that the patient's weight is G and the piston area of ​​the first hydraulic lifting column (202) is S, the pressure P required by the hydraulic system is:

3. The rehabilitation treatment instrument for hemiplegic patients with cerebral infarction according to claim 2, characterized in that: The leg stretcher (3) comprises a calf movable frame (301), a second hydraulic telescopic column (302) and a fixed frame (303); a pair of calf movable frames (301) are rotatably arranged at the front bottom side of the seat (203) corresponding to the positions of the legs of the human body, and an angle sensor and a counter are arranged at the rotation connection; a fixed frame (303) is fixedly arranged at the rear bottom side of the seat (203), and a second hydraulic telescopic column (302) is respectively arranged on the fixed frame (303) at the positions corresponding to the calf movable frames (301). The telescopic end of the second hydraulic telescopic column (302) is rotatably mounted on the calf movable frame (301); the calf movable frame (301) is provided with a calf support sleeve (304) and a first strap (305) for restraining the leg; assuming that the telescopic length of the second hydraulic telescopic column (302) is L, the length of the calf movable frame (301) is a, and the horizontal distance from the fixed frame (303) to the rotation fulcrum is b, then the rotation angle θ of the calf movable frame (301) can be calculated by the cosine theorem:

4. The rehabilitation treatment instrument for hemiplegic patients with cerebral infarction according to claim 1, characterized in that: The upright column (5) comprises a fixed rod (501), a first locking bolt (502) and a telescopic rod (503); the telescopic rod (503) is telescopically inserted into the fixed rod (501), the fixed rod (501) is provided with a first locking bolt (502), the first locking bolt (502) passes through the fixed rod (501) and abuts against the telescopic rod (503); the lower end of the fixed rod (501) is provided on the base (1), and the upper end of the telescopic rod (503) is provided with a treatment table (6); the leg exerciser (7) is mounted on the fixed rod (501).

5. The rehabilitation treatment apparatus for hemiplegic patients due to cerebral infarction according to claim 4, characterized in that: The leg exerciser (7) comprises a power box (701), on which a pedal device (702) is rotatably provided, and on which a foot fixing device (703) is detachably installed; a mounting frame (704) is provided at the bottom of the power box (701), and a plurality of matching mounting sleeves (705) are provided at one end of the mounting frame (704) close to the fixing rod (501), and a second locking bolt (706) is provided on the mounting sleeve (705), and the mounting sleeve (705) is limitedly sleeved on the fixing rod (501) by the second locking bolt (706).

6. The rehabilitation treatment apparatus for hemiplegic patients due to cerebral infarction according to claim 5, characterized in that: The pedal device (702) comprises a first mounting shaft (707), the first mounting shaft (707) is rotatably mounted in the power box (701), and a first bevel gear (710) is arranged on the shaft body; a first motor (711) is arranged inside the power box (701), and a second bevel gear (712) meshing with the first bevel gear (710) is arranged on the output shaft of the first motor (711); both ends of the first mounting shaft (707) penetrate the power box (701) and extend to the outside to be vertically mounted with a rotating rod (708), and the rotating rod (708) is vertically mounted on the rotating rod (708). A foot pedal (709) is installed straight and rotatably; a mounting sleeve (714) adapted to the foot pedal (709) is provided at the bottom of the foot fixing device (703), and the foot fixing device (703) is installed on the foot pedal (709) through the mounting sleeve (714); a plurality of second straps (713) for binding the legs are provided on the foot fixing device (703); assuming that the output shaft speed of the first motor (711) is n1, the number of teeth of the first bevel gear (710) is z1, and the number of teeth of the second bevel gear (712) is z2, then the speed n2 of the foot pedal device (702) is:

7. The rehabilitation treatment apparatus for hemiplegic patients due to cerebral infarction according to claim 1, characterized in that: The arm stretcher (8) comprises a stretcher body (801) and an arm movable frame (804); the upper end surface of the stretcher body (801) is provided with a protective pad (802) and a third strap (803) for restraining the arm; the lower end of the arm movable frame (804) is rotatably mounted on an end of the stretcher body (801) away from the seat (2), and a second angle sensor and a second counter are provided at the rotation connection; an arm support sleeve (805) and a fourth strap (807) for restraining the arm are provided on the upper end frame of the arm movable frame (804), and a mounting bolt (806) is provided on the arm support sleeve (805), and the arm support sleeve (805) can be detachably mounted on the arm movable frame (804) via the mounting bolt (806).

8. The rehabilitation treatment apparatus for hemiplegic patients due to cerebral infarction according to claim 7, characterized in that: A second motor (810) is arranged inside the stretcher body (801), and an output shaft of the second motor (810) passes through the stretcher body (801) and extends to the outside and is provided with a second gear (811); a second mounting shaft (808) is fixedly arranged at the lower end of the arm movable frame (804), and the arm movable frame (804) is rotatably mounted on one end of the stretcher body (801) away from the seat (2) through the second mounting shaft (808), and one end of the second mounting shaft (808) passes through the stretcher body (801) and is provided with a first gear (809) meshing with the second gear (811).

9. The rehabilitation treatment apparatus for hemiplegic patients due to cerebral infarction according to claim 1, characterized in that: The grip strength trainer (9) comprises a mounting frame (901), a resistance rod (905) and a resistance spring (906); a lead screw shaft (902) is installed in the mounting frame (901) for transverse rotation, and the lead screw shaft (902) is connected to a third motor (908); a C-shaped grip frame (903) is fixedly provided at one end of the mounting frame (901) close to the seat (2), and grip pull rings (904) are slidably provided at both ends of the C-shaped grip frame (903); the C-shaped grip frame (903) and the grip pull ring (904) are mutually connected. A contact sensor is arranged between the end faces of the pair; one end of the resistance rod (905) is rotatably mounted on the mounting frame (901), and the other end is rotatably connected to the grip pull ring (904) on the same side; one end of the resistance spring (906) is arranged at the rod body position of the resistance rod (905), and the other end is adjustable through the screw shaft (902); assuming that the elastic coefficient of the resistance spring (906) is k, the initial stretching length is x0, and the additional stretching amount adjusted by the screw shaft (902) is Δx, then the resistance F during grip training is: F=k(x0+Δx).

10. The rehabilitation treatment apparatus for hemiplegic patients due to cerebral infarction according to claim 9, characterized in that: The grip strength trainer (9) further comprises a threaded sleeve (907), wherein a corresponding threaded sleeve (907) is arranged at a position corresponding to each resistance spring (906) on the lead screw shaft (902), and one end of the resistance spring (906) away from the resistance rod (905) is connected to the threaded sleeve (907); assuming that the pitch of the lead screw shaft (902) is p, and the number of turns driven by the third motor (908) to rotate the lead screw shaft (902) is n, the displacement Δx of the threaded sleeve (907) is: Δx=n·p; by adjusting n through the control system, the resistance F can be precisely controlled to meet the grip strength training needs of different patients.

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