Grip ball for rehabilitation of hemodialysis patient

Abstract

The invention discloses a grip ball for rehabilitation of a hemodialysis patient, relates to the technical field of medical instruments, and aims to solve the technical problems that an existing grip ball is easy to enhance the fatigue of the patient for palm grasping and is difficult to exercise fingers due to the single grasping action, and the grip ball comprises an upper hemisphere and a lower hemisphere, the upper hemisphere and the lower hemisphere are connected through a fist-clenching rebounding assembly, a finger pressing assembly is arranged at the top of the upper hemisphere, a telescopic adjusting assembly is arranged in the lower hemisphere, and the upper hemisphere and the lower hemisphere are adjusted and controlled through the telescopic adjusting assembly and have a mutual approaching state and a mutual separating state. The rehabilitation training device has the advantages that a patient can hold the hollow fist by hand for exercise, the strength of the hand clenching the fist is sensed by applying pressure to the grip ball so as to evaluate the rehabilitation degree, meanwhile, the rehabilitation training device can be used for exercising the finger flexibility, and the requirements of two rehabilitation actions are met.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more specifically to a grip ball for rehabilitation of hemodialysis patients. Background Art

[0002] For hemodialysis patients, the grip ball is a simple and effective rehabilitation tool. After arteriovenous interventional catheterization, patients may lose sensation in their hands and urgently need rehabilitation training. The use of a grip ball can promote blood circulation in the hands through repeated grasping movements, contraction and relaxation of the hand muscles, which can squeeze the veins in the hands, making the process of blood returning to the heart smoother.

[0003] Existing grip balls usually guide the patient's palms to do gripping movements, causing the hand muscles to contract and relax, thereby squeezing the surrounding blood vessels and promoting blood to flow back to the heart. However, the grip ball guides the patient's palms to do exercise movements in a relatively simple manner, which is relatively boring after long-term use. The single gripping movement can easily increase the patient's fatigue in gripping the palms, and it is difficult to exercise the fingers, which can easily lead to a poor exercise experience for the patient. In view of this, we propose a grip ball for rehabilitation of hemodialysis patients. Summary of the invention

[0004] The purpose of the present invention is to provide a grip ball for rehabilitation of hemodialysis patients, so as to solve the technical problems that the existing grip ball can easily increase the fatigue of the patient's palm gripping and make it difficult to exercise the fingers.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a grip ball for rehabilitation of hemodialysis patients, comprising an upper hemisphere and a lower hemisphere; the upper hemisphere and the lower hemisphere are connected by a fist rebound component, a finger pressing component is arranged on the top of the upper hemisphere, and a telescopic adjustment component is arranged inside the lower hemisphere; the upper hemisphere and the lower hemisphere are adjusted and controlled by the telescopic adjustment component, and have a state of approaching each other and a state of moving away from each other; in the state of approaching each other, by holding the upper hemisphere and the lower hemisphere by hand, a hollow fist state is formed, and the fist rebound component provides a force that repels the fist to perform fist training; in the state of moving away from each other, by pressing the fingers on the finger pressing component, the fingers perform a pressing action to train the finger flexibility.

[0006] Preferably, the fist rebound assembly includes four sliding columns connected to the bottom surface of the upper hemisphere, the circumferential outer wall of the sliding column is sleeved with a spring 1, the top of the spring 1 is connected to the bottom surface of the upper hemisphere, the bottom of the spring 1 is connected to a fixed ring plate, the fixed ring plate is slidably matched with the sliding column, the bottom surface of the fixed ring plate is connected to a pressure sensor 1, and the bottom surface of the sliding column is connected to a limiting plate; the top surface of the lower hemisphere is provided with a first circular groove matching the sliding column, and a second circular groove matching the limiting plate is provided below the first circular groove, the first circular groove is connected to the inner cavity of the second circular groove, the sliding column passes through the first circular groove and extends into the second circular groove, and the sliding column is slidably matched with the first circular groove.

[0007] Preferably, the telescopic adjustment assembly includes a rotating rod arranged at the top of the lower hemisphere, a plurality of fixed blocks are connected to the top surface of the lower hemisphere, the rotating rod passes through the side walls of the fixed blocks and rotates with the side walls of the fixed blocks, one end of the rotating rod is connected to a rotating handle, and the circumferential outer wall of the rotating rod is connected to two gears 1, the output end of the gear 1 is meshed with a rack 1, a side wall of the rack is connected to a clamping plate, the clamping plate passes through the inside of the second circular groove, and slots for the movement of the rack 1 and the clamping plate are opened inside the lower hemisphere.

[0008] Preferably, the top surface of the upper hemisphere is provided with a plurality of pressure grooves, the finger pressing assembly includes a plurality of pressure plates arranged inside the pressure grooves, the side walls of the pressure grooves are rotatably connected with a rotating shaft, the rotating shaft passes through the side walls of the pressure plates, and the pressure plates are rotatably matched with the side walls of the pressure grooves through the rotating shaft; a movable groove is provided in each of the pressure grooves, and two adjacent movable grooves are connected by a square groove, and the inner side wall of one of the movable grooves is provided with two rack grooves 1, and the two rack grooves 1 are symmetrically distributed; the bottom surface of the pressure plate is connected to spring 2, the bottom surface of the spring 2 is connected to a fixed plate, the bottom surface of the fixed plate is connected to pressure sensor 2, and the pressure sensor 2 is connected to the bottom surface of the fixed plate. The bottom surface of sensor 2 is connected to a support plate, and there are multiple support plates. Every two adjacent support plates are connected by a connecting plate, and the symmetrical two side walls of one of the support plates are respectively connected to rack 2; wherein, spring 2 is arranged in the movable groove, the connecting plate is arranged in the square groove, and rack 2 is arranged in rack groove 1; the bottom surface of the upper hemisphere is connected to multiple fixed side walls, and the fixed side walls are rotatably connected to gear 2, and the output end of gear 2 is meshed with rack 2; the top surface of the lower hemisphere is connected to multiple racks 3 corresponding to gear 2, and the output end of gear 2 is meshed with rack 3.

[0009] Preferably, a plurality of slots 1 matching the racks 3 are provided on the bottom surface of the upper hemisphere, and the slots 1 are used to provide a placement space for the racks 3 when the upper hemisphere is pressed downward toward the lower hemisphere.

[0010] Preferably, a plurality of square grooves are provided on the top surface of the lower hemisphere, and a rack groove 2 is provided in the square groove. The square groove is used to provide a placement space for the gear 2 when the upper hemisphere is pressed downward toward the lower hemisphere, and the rack groove 2 is used to provide a placement space for the rack 2.

[0011] Preferably, the pressing plate is an arc-shaped structure that matches the shape of the outer side wall of the upper hemisphere, and a finger groove is provided on the top surface of the pressing plate, and the finger groove is used to provide a pressing area for a finger to press the pressing plate.

[0012] Preferably, a semi-cylindrical groove is formed on the bottom surface of the upper hemisphere, and a groove symmetrical to the semi-cylindrical groove is formed on the top surface of the lower hemisphere, and the semi-cylindrical groove is used to provide a placement space for the rotating rod.

[0013] A method for using a grip ball for rehabilitation of hemodialysis patients, comprising the following steps: S1. If the grip ball is used for fisting exercise, by rotating the handle, the rotating rod is adjusted to rotate, which drives gear 1 to rotate, and further drives rack 1 meshing with gear 1 to move, so that rack 1 drives the card plate to leave the second circular groove. At this time, the inner cavity of the second circular groove is unobstructed, and then the upper hemisphere is pressed down to make pressure sensor 1 fit on the top surface of the lower hemisphere. During the downward pressure of the upper hemisphere, gear 2 will move downward along the teeth of rack 3, causing gear 2 to rotate. The rotation of gear 2 drives the rack 3 meshing with it. The rack 2 moves downward, and the rack 2 pulls the spring 2 to move downward in the movable groove until the support plate falls into the inner bottom surface of the movable groove, so that the multiple pressure plates enter the corresponding pressure grooves. At this time, the upper hemisphere and the lower hemisphere are in a hollow fist state. By making a fist with force, the upper hemisphere presses down the lower hemisphere, and the spring 1 is compressed by force, and the pressure is transmitted to the pressure sensor 1 at the same time to monitor the pressure value. After the spring 1 is compressed, an elastic force is generated, which is mutually exclusive with the force of making a fist, so that the fist-making action can be performed repeatedly for fist-making exercise; S2. If the grip ball is used to exercise finger flexibility, first pull the upper hemisphere to the farthest point from the lower hemisphere. During the pulling process, gear 2 and rack 3 form a meshing relationship, causing gear 2 to rotate, and gear 2 drives rack 2 meshing with it to move upward, thereby pushing spring 2 to move upward in the movable groove, driving multiple pressure plates to rotate around the side wall of the pressure groove, leaving the inside of the pressure groove to form an expanded state. When the limit plate at the bottom of the sliding column enters the top of the second circular groove, the rotating handle is rotated to adjust the rotating rod to rotate, so that the card plate enters the inside of the second circular groove. The inner cavity of the second circular groove is in a closed state, and the card plate is against the bottom surface of the limit plate, so that the sliding column The sliding is restricted. At this time, the upper hemisphere and the lower hemisphere are in a state of being away from each other and cannot move relative to each other, which further prevents gear two from being displaced on rack three. Gear two cannot rotate, which further fixes rack two and makes it difficult for it to be displaced. Multiple pressure plates can always remain in the expanded state. Then, by pressing the finger into the finger groove of the pressure plate and applying pressure, the pressure plate compresses spring two. Spring two is pressed down on pressure sensor two under force. Pressure is monitored by pressure sensor two. When spring two is compressed, it generates elastic force, which repel the pressure applied by the finger, so that the finger can perform repeated pressing actions to exercise finger flexibility.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention designs a grip ball with two training modes. This grip ball can be used as an effective rehabilitation auxiliary equipment. On the one hand, it allows the patient to exercise with a hollow fist, and the strength of the fist can be sensed by applying pressure to the grip ball to evaluate the degree of rehabilitation; on the other hand, it can be used to train finger flexibility and guide the patient's fingers to make piano-playing movements. The shape of the rehabilitation equipment is carefully designed to meet the needs of two rehabilitation movements. At the same time, the corresponding pressure value can be measured, providing a reliable basis for doctors and patients to accurately understand the progress of rehabilitation. The two training modes solve the problem that a single gripping movement easily increases the patient's fatigue in palm gripping and makes it difficult to exercise the fingers.

[0015] 2. The present invention is also capable of adjusting the inner cavity of the second circular groove to be in an unobstructed state or a closed state by designing a telescopic adjustment component. When the upper hemisphere and the lower hemisphere are in a state of being close to each other, the inner cavity of the second circular groove is in an unobstructed state by adjusting the telescopic adjustment component, and the sliding column can slide freely up and down in the first circular groove and the second circular groove, thereby ensuring that the upper hemisphere and the lower hemisphere can press each other for fisting training. When the upper hemisphere and the lower hemisphere are in a state of being far away from each other, the inner cavity of the second circular groove is in a closed state by adjusting the telescopic adjustment component, thereby prohibiting the movement of the sliding column, so that the upper hemisphere and the lower hemisphere are always kept away from each other and cannot move from each other, thereby ensuring the stability of the finger pressing component for finger flexibility training. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the bottom surface structure of the upper hemisphere of the present invention; Figure 3 It is a schematic diagram of the lower hemisphere cutaway structure viewing angle 1 of the present invention; Figure 4 It is a schematic diagram of the lower hemisphere cutaway structure from a second viewing angle of the present invention; Figure 5 It is a schematic diagram of the lower hemisphere split structure viewing angle 1 of the present invention; Figure 6 This is a schematic diagram of the second viewing angle of the lower hemisphere split structure of the present invention; Figure 7 It is a schematic diagram of the structure of the telescopic adjustment component of the present invention; Figure 8 It is a schematic diagram of the overall structure of the present invention; Fig. 9 It is a schematic diagram of the internal structure of the upper hemisphere of the present invention; Fig.10 It is a schematic diagram of the cutaway structure of the upper hemisphere of the present invention; Fig.11 It is a partial structural schematic diagram of the finger pressing assembly of the present invention; Fig.12 A schematic diagram of the finger dexterity training of the present invention in use; Fig.13 It is a schematic diagram of the use state of the fist-clenching exercise of the present invention.

[0017] Description of the numbers in the figure: 1. Upper hemisphere; 2. Lower hemisphere; 3. Fist rebound component; 4. Finger pressing component; 5. Telescopic adjustment component; 101, press groove; 102, rotating shaft; 103, movable groove; 104, square groove; 105, rack groove 1; 106, slot 1; 107, semi-cylindrical groove; 201, first circular groove; 202, second circular groove; 203, fixed block; 204, rack three; 205, square groove; 206, rack groove two; 301, sliding column; 302, spring 1; 303, fixed ring plate; 304, pressure sensor 1; 305, limit plate; 401, pressing plate; 4011, finger groove; 402, spring 2; 403, fixing plate; 404, pressure sensor 2; 405, supporting plate; 406, connecting plate; 407, rack 2; 408, fixed side wall; 409, gear 2; 501, rotating rod; 502, rotating handle; 503, gear 1; 504, rack 1; 505, clamping plate. DETAILED DESCRIPTION

[0018] like Figures 1 to 13 As shown, the present invention relates to a grip ball for rehabilitation of hemodialysis patients, comprising an upper hemisphere 1 and a lower hemisphere 2; the upper hemisphere 1 and the lower hemisphere 2 are connected via a fist rebound component 3; a finger pressing component 4 is arranged on the top of the upper hemisphere 1; and a telescopic adjustment component 5 is arranged inside the lower hemisphere 2; In an embodiment of the present invention, the upper hemisphere 1 and the lower hemisphere 2 are adjusted and controlled by the telescopic adjustment component 5, and have a mutually approaching state and a mutually distant state; in the mutually approaching state, a mutually pressable rebound structure is formed between the upper hemisphere 1 and the lower hemisphere 2 through the fist rebound component 3, and a hollow fist state is formed by holding the upper hemisphere 1 and the lower hemisphere 2, and a force repelling the fist is provided by the fist rebound component 3 to perform fist training; in the mutually distant state, a fixed structure is formed between the upper hemisphere 1 and the lower hemisphere 2 through the adjustment of the telescopic adjustment component 5, and the fingers are pressed on the finger pressing component 4 to train the finger flexibility.

[0019] In an embodiment of the present invention, the fist rebound assembly 3 includes four sliding columns 301 connected to the bottom surface of the upper hemisphere 1, and the circumferential outer wall of the sliding column 301 is sleeved with a spring 1 302. The top of the spring 1 302 is connected to the bottom surface of the upper hemisphere 1, and the bottom of the spring 1 302 is connected to a fixed ring plate 303. The fixed ring plate 303 slides with the sliding column 301, and the bottom surface of the fixed ring plate 303 is connected to a pressure sensor 1 304, wherein the pressure sensor 1 304 is the prior art in the example, and the bottom surface of the sliding column 301 is connected to a limiting plate 305; a first circular groove 201 matching the sliding column 301 is opened on the top surface of the lower hemisphere 2, and a second circular groove 202 matching the limiting plate 305 is opened below the first circular groove 201, the inner cavity of the first circular groove 201 is connected to the second circular groove 202, and the sliding column 301 passes through the first circular groove 201 and Extending into the second circular groove 202, the sliding column 301 slides with the first circular groove 201; by pressing the upper hemisphere 1 down on the lower hemisphere 2, the sliding column 301 slides downward in the first circular groove 201, so that the pressure sensor 1 304 fits the top surface of the lower hemisphere 2, and further by holding the upper hemisphere 1 and the lower hemisphere 2, the palm is in a hollow fist state, and by clenching the fist, the upper hemisphere 1 is pressed down on the lower hemisphere 2, and the spring 1 302 is compressed, and the pressure is transmitted to the pressure sensor 1 304 at the same time, and the pressure value is monitored to evaluate the health level. After the spring 1 302 is compressed, an elastic force is generated, which is mutually exclusive with the fist force. After releasing the fist force, the upper hemisphere 1 is pushed away from the lower hemisphere 2 by the elastic force generated by the four springs 1 302, and then the fist is clenched hard, so that the fist-clenching action can be performed repeatedly for fist-clenching exercise.

[0020] In the embodiment of the present invention, the telescopic adjustment component 5 includes a rotating rod 501 arranged on the top of the lower hemisphere 2, and the top surface of the lower hemisphere 2 is connected to two fixed blocks 203, and the fixed blocks 203 are symmetrically distributed on both sides. The rotating rod 501 passes through the side wall of the fixed block 203 and rotates with the side wall of the fixed block 203. One end of the rotating rod 501 is connected to a rotating handle 502, and the rotating handle 502 is a cylindrical rotating cylinder. The outer wall of the circumference of the rotating rod 501 is connected to two gears 503, and the gears 503 output The output end is meshedly connected with a rack 504, and the side wall of the rack 504 is connected with a clamping plate 505, which passes through the second circular groove 202. A slot hole for the rack 504 and the clamping plate 505 to move is opened inside the lower hemisphere 2; by rotating the rotating handle 502, the rotating rod 501 is adjusted to rotate, driving the gear 503 to rotate, and further driving the rack 504 meshed with the gear 503 to move, so that the rack 504 drives the clamping plate 505 to leave the second circular groove 202. At this time, the inner cavity of the second circular groove 202 is unobstructed, and the sliding column 301 can slide freely up and down in the first circular groove 201 and the second circular groove 202; similarly, by rotating the handle 502 in the opposite direction, the clamping plate 505 enters the second circular groove 202, and the second circular groove 202 forms a closed state. The clamping plate 505 abuts against the bottom surface of the limiting plate 305, so that the sliding column 301 is restricted from sliding; in the present invention, the upper hemisphere 1 and the lower hemisphere 2 are in a state of being close to each other, by adjusting the telescopic adjustment component 5, The inner cavity of the second circular groove 202 is kept unobstructed, ensuring that the upper hemisphere 1 and the lower hemisphere 2 can press each other for fist training. When the upper hemisphere 1 and the lower hemisphere 2 are in a state of being away from each other, the second circular groove 202 is closed by adjusting the telescopic adjustment component 5. The clamping plate 505 is pressed against the bottom surface of the limit plate 305, prohibiting the movement of the sliding column 301. The upper hemisphere 1 and the lower hemisphere 2 always remain away from each other and cannot move against each other, thereby ensuring the stability of the finger pressing component 4 for finger flexibility training.

[0021] In the embodiment of the present invention, four pressing grooves 101 are provided on the top surface of the upper hemisphere 1, and the finger pressing assembly 4 includes four pressing plates 401 arranged inside the pressing grooves 101. The pressing plate 401 is an arc-shaped special-shaped structure matching the shape of the outer wall of the upper hemisphere 1. A finger groove 4011 is provided on the top surface of the pressing plate 401, and the finger groove 4011 is used to provide a pressing area for a finger to press the pressing plate 401. The side wall of the pressing groove 101 is rotatably connected with a rotating shaft 102, and the rotating shaft 102 passes through the side wall of the pressing plate 401. The pressing plate 401 rotates with the side wall of the pressing groove 101 through the rotating shaft 102; each pressing groove 101 is provided with an active groove 103, and two adjacent active grooves 103 are connected through a square groove 104, and the inner side wall of one of the active grooves 103 is provided with two rack grooves 105, and the two rack grooves 105 are symmetrically distributed; the bottom surface of the pressing plate 401 is connected with a spring 2 402, and the bottom surface of the spring 2 402 is connected with a fixed The fixed plate 403 is connected to the bottom surface of the fixed plate 403 with a pressure sensor 2 404, which is the existing technology in the example, and the bottom surface of the pressure sensor 2 404 is connected to a support plate 405, and there are four support plates 405, and each two adjacent support plates 405 are connected by a connecting plate 406, and the symmetrical two side walls of one support plate 405 are respectively connected to rack 2 407; wherein, the spring 2 402 is arranged in the movable groove 103, the connecting plate 406 is arranged in the square groove 104, and the rack 2 407 is arranged in the rack groove 1 105; the bottom surface of the upper hemisphere 1 is connected to a plurality of fixed side walls 408, and the side walls of the fixed side walls 408 are rotatably connected to the gear 2 409, and the output end of the gear 2 409 is meshed and connected with the rack 2 407; the top surface of the lower hemisphere 2 is connected to a plurality of racks 3 204 corresponding to the gears 2 409, and the output end of the gear 2 409 is meshed and connected with the rack 3 204;In the present invention, the upper hemisphere 1 and the lower hemisphere 2 are pulled apart to form a state of being away from each other. During the pulling process, the gear 2 409 and the rack 3 204 form a meshing relationship, causing the gear 2 409 to rotate, and the gear 2 409 drives the rack 2 407 meshing therewith to move upward, thereby pushing the spring 2 402 to move upward in the movable groove 103, driving the multiple pressing plates 401 to rotate around the side wall of the pressing groove 101, leaving the inside of the pressing groove 101, and forming an expanded state. Then, by adjusting the telescopic adjustment component 5, the upper hemisphere 1 and the lower hemisphere 2 are always kept away from each other and cannot move relative to each other, and the gear 2 409 is further unable to move on the rack 3 204. , the gear 2 409 cannot rotate, further making the rack 2 407 fixed and difficult to move, and the multiple pressing plates 401 can always remain in the unfolded state, and then by pressing the finger in the finger groove 4011 of the pressing plate 401, the finger makes a piano-playing action, exerting pressure on the pressing plate 401, prompting the pressing plate 401 to compress the spring 2 402, and the spring 2 402 is pressed down on the pressure sensor 2 404. The pressure is monitored by the pressure sensor 2 404, which is convenient for evaluating the recovery degree of the finger. When the spring 2 402 is compressed, it generates elastic force, which forms a mutual repulsion with the pressure applied by the finger, so that the finger can perform repeated pressing actions to exercise the finger flexibility. ;

[0022] In an embodiment of the present invention, two slots 106 matching rack 3 204 are provided on the bottom surface of the upper hemisphere 1, and slots 106 are used to provide a placement space for rack 3 204 when the upper hemisphere 1 is pressed down on the lower hemisphere 2; two square grooves 205 are provided on the top surface of the lower hemisphere 2, and rack grooves 206 are provided in the square grooves 205. The square grooves 205 are used to provide a placement space for gear 2 409 when the upper hemisphere 1 is pressed down on the lower hemisphere 2, and rack grooves 206 are used to provide a placement space for rack 2 407; a semi-cylindrical groove 107 is provided on the bottom surface of the upper hemisphere 1, and a groove symmetrical to the semi-cylindrical groove 107 is provided on the top surface of the lower hemisphere 2, and the semi-cylindrical groove 107 is used to provide a placement space for the rotating rod 501.

[0023] As another embodiment of the present invention, a method for using a grip ball for rehabilitation of hemodialysis patients comprises the following steps: S1. If the grip ball is used for fisting exercise, by rotating the handle 502, the rotating rod 501 is adjusted to rotate, which drives the gear 1 503 to rotate, and further drives the rack 1 504 meshing with the gear 1 503 to move, so that the rack 1 504 drives the clamping plate 505 to leave the second circular groove 202. At this time, the inner cavity of the second circular groove 202 is unobstructed, and then the upper hemisphere 1 is pressed down to make the pressure sensor 1 304 fit on the top surface of the lower hemisphere 2. During the pressing process of the upper hemisphere 1, the gear 2 409 will move downward along the teeth of the rack 3 204, causing the gear 2 409 to rotate. The rotation of the gear 2 409 drives the rack 3 204 meshing with the gear 1 503 to move. The meshed rack 2 407 moves downward, and the rack 2 407 pulls the spring 2 402 to move downward in the movable groove 103 until the support plate 405 falls into the inner bottom surface of the movable groove 103, so that the multiple pressing plates 401 enter the corresponding pressing grooves 101. At this time, the upper hemisphere 1 and the lower hemisphere 2 are held in a hollow fist state. By making a fist with force, the upper hemisphere 1 presses down on the lower hemisphere 2, and the spring 1 302 is compressed and the pressure is transmitted to the pressure sensor 1 304 to monitor the pressure value. After the spring 1 302 is compressed, an elastic force is generated, which is mutually exclusive with the force of making a fist, so that the fist-making action can be performed repeatedly for fist-making exercise; S2. If the grip ball is used to exercise finger flexibility, first pull the upper hemisphere 1 to the farthest point from the lower hemisphere 2. During the pulling process, the gear 2 409 and the rack 3 204 form a meshing relationship, causing the gear 2 409 to rotate, and the gear 2 409 drives the rack 2 407 meshing therewith to move upward, thereby pushing the spring 2 402 to move upward in the movable groove 103, driving multiple pressure plates 401 to rotate around the side wall of the pressure groove 101, leaving the inside of the pressure groove 101 to form an expanded state. When the limit plate 305 at the bottom of the slide column 301 enters the top of the second circular groove 202, by rotating the rotating handle 502, the rotating rod 501 is adjusted to rotate, so that the clamping plate 505 enters the inside of the second circular groove 202, and the inner cavity of the second circular groove 202 is in a closed state, and the clamping plate 505 is against the limit plate 30 5, so that the sliding column 301 is restricted from sliding. At this time, the upper hemisphere 1 and the lower hemisphere 2 are in a state of being away from each other and cannot move relative to each other, further making it impossible for the gear 2 409 to be displaced on the rack 3 204, and the gear 2 409 cannot rotate, further making the rack 2 407 fixed and difficult to be displaced. The multiple pressure plates 401 can always remain in the expanded state, and then by pressing the finger into the finger groove 4011 of the pressure plate 401, pressure is applied to cause the pressure plate 401 to compress the spring 2 402, and the spring 2 402 is pressed down on the pressure sensor 2 404. The pressure is monitored by the pressure sensor 2 404. When the spring 2 402 is compressed, an elastic force is generated, which is mutually exclusive with the pressure applied by the finger, so that the finger can perform repeated pressing actions to exercise the finger flexibility.

[0024] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A grip ball for rehabilitation of hemodialysis patients, characterized in that: Includes the upper hemisphere (1) and the lower hemisphere (2); The upper hemisphere (1) and the lower hemisphere (2) are connected via a fist rebound component (3); A finger pressing component (4) is arranged on the top of the upper hemisphere (1); A telescopic adjustment component (5) is arranged inside the lower hemisphere (2); The upper hemisphere (1) and the lower hemisphere (2) are adjusted and controlled by the telescopic adjustment component (5), and have a mutually approaching state and a mutually distant state. In the mutually approaching state, the upper hemisphere (1) and the lower hemisphere (2) are grasped by the hand to form a hollow fist state, and the fist rebound component (3) provides a force that repels the fist, thereby performing fist exercise. In the mutually distant state, the finger is pressed on the finger pressing component (4) to perform a pressing action, thereby performing finger flexibility exercise.

2. A grip ball for rehabilitation of hemodialysis patients according to claim 1, characterized in that: The fist rebound component (3) comprises four sliding columns (301) connected to the bottom surface of the upper hemisphere (1); a spring 1 (302) is sleeved on the circumferential outer wall of the sliding column (301); the top of the spring 1 (302) is connected to the bottom surface of the upper hemisphere (1); the bottom of the spring 1 (302) is connected to a fixed ring plate (303); the fixed ring plate (303) is slidably matched with the sliding column (301); the bottom surface of the fixed ring plate (303) is connected to a pressure sensor 1 (304); and the bottom surface of the sliding column (301) is connected to a limit plate (305); The top surface of the lower hemisphere (2) is provided with a first circular groove (201) matching the sliding column (301), and a second circular groove (202) matching the limiting plate (305) is provided below the first circular groove (201). The inner cavities of the first circular groove (201) and the second circular groove (202) are connected, and the sliding column (301) passes through the first circular groove (201) and extends into the second circular groove (202). The sliding column (301) and the first circular groove (201) are slidably matched.

3. A grip ball for rehabilitation of hemodialysis patients according to claim 2, characterized in that: The telescopic adjustment assembly (5) comprises a rotating rod (501) arranged at the top of the lower hemisphere (2); a plurality of fixed blocks (203) are connected to the top surface of the lower hemisphere (2); the rotating rod (501) passes through the side wall of the fixed block (203) and is rotatably matched with the side wall of the fixed block (203); one end of the rotating rod (501) is connected to a rotating handle (502); two gears (503) are connected to the circumferential outer wall of the rotating rod (501); the output end of the gear (503) is meshingly connected to a rack (504); the side wall of the rack (504) is connected to a clamping plate (505); the clamping plate (505) passes through the inside of the second circular groove (202); and a slot hole for the movement of the rack (504) and the clamping plate (505) is opened inside the lower hemisphere (2).

4. The grip ball for rehabilitation of hemodialysis patients according to claim 3, characterized in that: The top surface of the upper hemisphere (1) is provided with a plurality of pressing grooves (101); the finger pressing assembly (4) comprises a plurality of pressing plates (401) arranged inside the pressing grooves (101); the side walls of the pressing grooves (101) are rotatably connected to a rotating shaft (102); the rotating shaft (102) passes through the side walls of the pressing plates (401); and the pressing plates (401) are rotatably matched with the side walls of the pressing grooves (101) via the rotating shaft (102); Each of the pressing grooves (101) is provided with a movable groove (103), and two adjacent movable grooves (103) are connected via a square groove (104), and the inner side wall of one of the movable grooves (103) is provided with two rack grooves (105), and the two rack grooves (105) are symmetrically distributed; The bottom surface of the pressure plate (401) is connected to a second spring (402), the bottom surface of the second spring (402) is connected to a fixing plate (403), the bottom surface of the fixing plate (403) is connected to a second pressure sensor (404), the bottom surface of the second pressure sensor (404) is connected to a support plate (405), there are a plurality of support plates (405), each two adjacent support plates (405) are connected via a connecting plate (406), and two symmetrical side walls of one of the support plates (405) are respectively connected to a second rack (407); Wherein, the second spring (402) is arranged in the movable groove (103), the connecting plate (406) is arranged in the square groove (104), and the second rack (407) is arranged in the first rack groove (105); The bottom surface of the upper hemisphere (1) is connected to a plurality of fixed side walls (408), the fixed side walls (408) are rotatably connected to a second gear (409), and the output end of the second gear (409) is meshingly connected to the second rack (407); The top surface of the lower hemisphere (2) is connected to a plurality of racks three (204) corresponding to the gear two (409), and the output end of the gear two (409) is meshingly connected with the rack three (204).

5. The grip ball for rehabilitation of hemodialysis patients according to claim 4, characterized in that: The bottom surface of the upper hemisphere (1) is provided with a plurality of slots one (106) matching the rack three (204), and the slots one (106) are used to provide a placement space for the rack three (204) when the upper hemisphere (1) is pressed downward toward the lower hemisphere (2).

6. The grip ball for rehabilitation of hemodialysis patients according to claim 5, characterized in that: The top surface of the lower hemisphere (2) is provided with a plurality of square grooves (205), and a second rack groove (206) is provided in the square groove (205). The square groove (205) is used to provide a placement space for the second gear (409) when the upper hemisphere (1) is pressed downward toward the lower hemisphere (2), and the second rack groove (206) is used to provide a placement space for the second rack (407).

7. The grip ball for rehabilitation of hemodialysis patients according to claim 6, characterized in that: The pressing plate (401) is an arc-shaped structure that matches the shape of the outer wall of the upper hemisphere (1), and a finger groove (4011) is provided on the top surface of the pressing plate (401), and the finger groove (4011) is used to provide a pressing area for a finger to press the pressing plate (401).

8. The grip ball for rehabilitation of hemodialysis patients according to claim 7, characterized in that: The bottom surface of the upper hemisphere (1) is provided with a semi-cylindrical groove (107), and the top surface of the lower hemisphere (2) is provided with a groove symmetrical to the semi-cylindrical groove (107). The semi-cylindrical groove (107) is used to provide a placement space for the rotating rod (501).

9. The method for using the grip ball for rehabilitation of hemodialysis patients according to claim 8, characterized in that: The following steps are involved: S1. If the grip ball is used for fisting exercise, the handle (502) is rotated to adjust the rotating rod (501) to rotate, thereby driving the gear 1 (503) to rotate, and further driving the rack 1 (504) meshing with the gear 1 (503) to move, so that the rack 1 (504) drives the clamping plate (505) to leave the second circular groove (202). At this time, the inner cavity of the second circular groove (202) is unobstructed, and then the upper hemisphere (1) is pressed down to make the pressure sensor 1 (304) fit on the top surface of the lower hemisphere (2). During the pressing process of the upper hemisphere (1), the gear 2 (409) moves downward along the tooth mouth of the rack 3 (204), causing the gear 2 (409) to rotate. The gear 2 (409) rotates. The gear rack 2 (407) meshing with the gear rack 2 (407) moves downward, and the gear rack 2 (407) pulls the spring 2 (402) to move downward in the movable groove (103) until the support plate (405) falls into the inner bottom surface of the movable groove (103), so that the plurality of pressure plates (401) enter the corresponding pressure grooves (101). At this time, the upper hemisphere (1) and the lower hemisphere (2) are held in a hollow fist state, and the upper hemisphere (1) is pressed downward toward the lower hemisphere (2) by clenching the fist with force, so that the spring 1 (302) is compressed and the pressure is transmitted to the pressure sensor 1 (304) to monitor the pressure value. After the spring 1 (302) is compressed, an elastic force is generated, which is mutually exclusive with the force of clenching the fist, so that the fist-clenching action can be performed repeatedly, and fist-clenching exercise is performed; S2. If the grip ball is used for finger flexibility training, first pull the upper hemisphere (1) to the farthest point from the lower hemisphere (2). During the pulling process, gear 2 (409) and rack 3 (204) form a meshing relationship, causing gear 2 (409) to rotate. Gear 2 (409) drives rack 2 (407) meshing therewith to move upward, thereby pushing spring 2 (402) to move upward in the movable groove (103), driving multiple pressure plates (401) to rotate around the side wall of the pressure groove (101) and leave the inside of the pressure groove (101) to form an expanded state. When the limit plate (305) at the bottom of the sliding column (301) enters the top of the second circular groove (202), the rotating handle (502) is rotated to adjust the rotating rod (501) to rotate, so that the clamping plate (505) enters the inside of the second circular groove (202). The inner cavity of the second circular groove (202) is in a closed state, and the clamping plate (505) is against The bottom surface of the limit plate (305) restricts the sliding of the sliding column (301). At this time, the upper hemisphere (1) and the lower hemisphere (2) are in a state of being away from each other and cannot move relative to each other, further preventing the second gear (409) from being displaced on the third rack (204). The second gear (409) cannot rotate, further fixing the second rack (407) and making it difficult for it to be displaced. The plurality of pressure plates (401) can always be kept in an unfolded state. Then, by pressing a finger into the finger groove (4011) of the pressure plate (401) to apply pressure, the pressure plate (401) compresses the second spring (402). The second spring (402) is pressed downward on the second pressure sensor (404). Pressure monitoring is performed through the second pressure sensor (404). When the second spring (402) is compressed, an elastic force is generated, which is mutually exclusive with the pressure applied by the finger, so that the finger can perform repeated pressing actions to exercise the finger flexibility.

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