Air bag pulse cooperative rehabilitation physiotherapy device for hand dysfunction

Abstract

The invention discloses an air bag pulse cooperative type rehabilitation physiotherapy device for hand dysfunction. A wrist strap integrated assembly comprises a wrist strap body, and a wrist air bag is connected to the wrist strap body; the finger stretching and bending piece comprises a fingertip fixing piece and one or two knuckle fixing pieces, and an elastic length adjusting piece is arranged between every two adjacent supporting blocks. A fingertip air bag is connected in the fingertip fixing piece, and a knuckle air bag is connected in the knuckle fixing piece; two bases are connected to the supporting block, one end of the rope is connected to the rope driving module, the other end of the rope is connected to the bases, and the rope driving module drives the rope to pull the finger stretching and bending piece to achieve stretching and bending of fingers; the electrode plate is electrically connected to the low-frequency pulse module. Compared with the prior art, through the air bag-finger integrated adaptive structure, the annular wrist strap integrated modular design and the rope drive-low frequency pulse cooperative control mechanism, rehabilitation training of the hemiplegic fingers which is high in adaptability, convenient to wear, good in rehabilitation effect and easy to operate is achieved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an airbag pulse-assisted rehabilitation physiotherapy device for hand dysfunction. Background Technology

[0002] Hemiplegia is a common sequela of cerebrovascular diseases, often presenting with unilateral limb motor dysfunction, particularly in the fingers, severely impacting daily living abilities. Clinical practice shows that scientific passive or assisted active rehabilitation training can effectively promote the recovery of finger motor function and improve neuromuscular control in hemiplegic patients.

[0003] Currently, various finger rehabilitation training devices exist on the market, but they still have many shortcomings in practical application, making it difficult to meet the personalized rehabilitation needs of hemiplegic patients: First, poor adaptability. Existing reciprocating contraction-type hemiplegic finger rehabilitation devices mostly use rigid knuckle grooves to fix the fingers or glove-like wrapping structures, which cannot adapt to the differences in finger circumference and length among different patients. Insufficient fit can easily lead to the device slipping off during training, affecting the training effect. Moreover, the rigid structure can easily compress blood vessels in the affected finger, causing poor blood circulation and aggravating the patient's discomfort. Second, low integration. The drive module of most rehabilitation devices is set separately from the finger actuator, requiring additional straps to fix it to the arm or other parts of the body. This is cumbersome to wear, takes up a lot of space, affects other daily activities of the patient's hand, and is inconvenient for home use. Third, the rehabilitation methods are limited. Existing mechanical rehabilitation devices only achieve finger flexion and extension training through simple mechanical drive, lacking nerve stimulation assistance, and have limited repair effect on damaged motor nerves in hemiplegic patients. Some electrical stimulation rehabilitation devices (such as patent CN111759669B) only achieve coordinated electrical stimulation of the upper and lower limbs, without a dedicated structure designed for fine finger movements, and do not coordinate with mechanical movements, thus failing to fully activate the neuromuscular linkage mechanism. Fourth, the operation is complicated. The transmission structure design of existing rope-driven rehabilitation devices is cumbersome, including multi-stage gear transmission or complex branching mechanisms, which are difficult to debug and require professional guidance to use. They are not suitable for hemiplegic patients to operate independently or for family members to use with assistance.

[0004] In summary, current technologies cannot simultaneously meet the four core needs of finger rehabilitation for hemiplegic patients: good adaptability, portability, synergistic rehabilitation, and ease of operation. Therefore, there is an urgent need for an improved finger rehabilitation physiotherapy device to enhance the effectiveness and convenience of rehabilitation training. Summary of the Invention

[0005] The purpose of this invention is to provide an airbag pulse-synergistic rehabilitation therapy device for hand dysfunction. Through the integrated airbag-finger adaptation structure, the integrated modular design of the ring wristband, and the rope-driven low-frequency pulse synergistic control mechanism, it achieves highly adaptable, portable, effective, and easy-to-operate finger rehabilitation training for hemiplegic patients, solving the technical problems of poor adaptability, low integration, single rehabilitation methods, and complex operation of existing devices.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An airbag pulse-assisted rehabilitation physiotherapy device for hand dysfunction includes a wristband integrated assembly. The wristband integrated assembly includes a wristband body with a display screen and a wrist airbag connected to it. A main control module is housed within the wristband body, along with a power supply, a low-frequency pulse module, a miniature piezoelectric pump module, and a rope-driven module electrically connected to the main control module. The finger flexion / extension mechanism includes a fingertip fixation component and one or two knuckle fixation components. Support blocks are connected to the sides of the fingertip and knuckle fixation components, and elastic elongated supports are provided between adjacent support blocks. The device includes an adjustable mechanism; a fingertip retainer with a fingertip airbag and a knuckle retainer with a knuckle airbag; a miniature pneumatic pump module connected to the wrist airbag, fingertip airbag, and knuckle airbag via an air tube for inflation and deflation; two bases connected to the support block, corresponding to the palm and back of the hand respectively; one end of a rope connected to a rope drive module and the other end connected to a base, the rope drive module driving the rope to pull the finger extension and flexion mechanism to achieve finger extension and flexion; and electrode pads electrically connected to a low-frequency pulse module, which can be attached to acupoints on the hand.

[0007] A further embodiment of the present invention is that the wristband body is an unclosed annular carrier, the display screen is connected to the top of the wristband body, the wrist airbag is adapted to the shape of the wristband body, the wrist airbag is connected to the inner circular surface of the wristband body, and the wristband body is connected with Velcro to adapt to the wearing needs of different patients.

[0008] A further embodiment of the present invention is that the fingertip fixing member is a circular sleeve structure with one end open, and the knuckle fixing member is an unclosed ring structure. The fingertip airbag and the knuckle airbag are respectively adapted to the shape of the fingertip fixing member and the knuckle fixing member and are respectively connected to the inner wall of the fingertip fixing member and the knuckle fixing member.

[0009] A further aspect of the present invention is that a support is connected to the fingertip fixation member and the knuckle fixation member, and a connector is connected to the fingertip airbag and the knuckle airbag, with the connector connected to the support; the trachea includes a main tube and a branch tube, one end of the branch tube is connected to the connector, and the other end is connected to the main tube, one end of the main tube is connected to the micro pneumatic pump module, and the wristband body is provided with several first through holes for the passage of the trachea.

[0010] A further embodiment of the present invention is that the rope drive module is arranged in two sets, one above the other. The upper rope drive module drives the base on the back of the hand, and the lower rope drive module drives the base on the palm of the hand. The rope drive module includes a motor, and several motors are connected to the mounting slots of the inner casing of the wristband. A winch is connected to the power output end of the motor. One end of the rope is fixedly connected to the winch. Several second through holes are provided on the wristband. The other end of the rope passes through the second through holes and is connected to each base respectively.

[0011] A further aspect of the present invention is that the rope is a flexible medical nylon thread, each base corresponds to one rope, and the base of the knuckle fixation member is provided with a thread hole for the nylon thread to pass through, so as to prevent the ropes on the same finger extension member from crossing and tangling.

[0012] A further embodiment of the present invention is that the length adjustment component includes a base, three pillars connected to the base, and a cover plate connected to the base; a spring is connected to the pillar, one of the springs is connected to a thin steel ruler A, one end of the thin steel ruler A is connected to a support block on one side, and the other two springs are connected to thin steel rulers B, the two thin steel rulers B are connected to the support block on the other side.

[0013] A further embodiment of the present invention is that a central shaft is connected to the base, a rotating arm is rotatably connected to the central shaft, the support column where the thin steel ruler A is located is connected to the rotating arm, an arc-shaped limiting groove is provided on the base, and the bottom end of the rotating arm is slidably fitted into the arc-shaped limiting groove.

[0014] A further aspect of the present invention is that a wire is connected to the low-frequency pulse module, and the wristband body is provided with several third through holes through which the wire passes, with one end of the wire connected to an electrode plate.

[0015] A further embodiment of the present invention is that a heart rate and blood pressure sensor is connected to the wristband body, the heart rate and blood pressure sensor is electrically connected to the main control module, the heart rate and blood pressure sensor is exposed on the inner circular surface of the wristband body, and the heart rate and blood pressure sensor is electrically connected to the main control module.

[0016] The beneficial effects of this invention are: The present invention provides an airbag pulse-synergistic rehabilitation therapy device for hand dysfunction. Through the airbag-finger integrated adaptation structure, wrist ring integrated modular design, and rope-driven low-frequency pulse synergistic control mechanism, it achieves highly adaptable, portable, effective, and easy-to-operate finger rehabilitation training for hemiplegic cerebral palsy.

[0017] The present invention relates to an airbag pulse-assisted rehabilitation physiotherapy device for hand dysfunction, wherein a miniature piezoelectric pump module inflates the wrist airbag, fingertip airbag, and knuckle airbag respectively to fit the patient's hand and ensure that they do not fall off during the rehabilitation process.

[0018] The present invention provides an airbag pulse-assisted rehabilitation therapy device for hand dysfunction, which has a length adjustment component between the microfinger and the knuckle to adapt to the finger length of different people.

[0019] The airbag pulse-assisted rehabilitation therapy device for hand dysfunction of the present invention has a rotating arm inside the length adjustment component that rotates along the arc-shaped limiting groove and stops when it reaches the limit position, so as to avoid exceeding the limit position of finger movement and causing secondary injury to the patient.

[0020] The present invention relates to an airbag pulse-assisted rehabilitation therapy device for hand dysfunction, wherein the electrode pads correspond to the corresponding acupoints on the hand, and the acupoints are stimulated by electrical discharge to achieve a synergistic therapeutic effect.

[0021] The present invention provides an airbag pulse-assisted rehabilitation therapy device for hand dysfunction, which adds a heart rate and blood pressure sensor and a display screen. The display screen can reflect the patient's physical functions, such as high and low blood pressure, heart rate, etc. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 This is a schematic diagram of the overall structure of the thumb finger extension component of the present invention.

[0024] Figure 3 This is a schematic diagram of the overall structure of the finger extension and bending component for four fingers (excluding the thumb) of the present invention.

[0025] Figure 4 This is a schematic diagram of the internal structure of the length adjusting component of the present invention.

[0026] Figure 5 This is a schematic diagram of the internal structure of the wristband integrated component of the present invention.

[0027] Figure 6 This is a schematic diagram of the rope-driven module structure of the present invention.

[0028] Figure 7 This is a schematic diagram of the cable-driven module housing structure of the present invention.

[0029] Figure 8 This is a schematic diagram of the structure of the knuckle fixing component of the present invention.

[0030] In the diagram: 1-Wristband integrated assembly, 101-Wristband body, 102-Wrist airbag, 103-Main control module, 104-Low frequency pulse module, 105-Miniature piezoelectric pump module, 106-First through hole, 107-Box, 108-Motor, 109-Winch, 110-Second through hole, 111-Third through hole, 112-Rope drive module, 113-Heart rate and blood pressure sensor, 2-Finger extension / flexion component, 201 202-Fingertip fixing component, 203-Support block, 204-Fingertip airbag, 205-Finger joint airbag, 206-Base, 207-Support, 208-Base, 209-Support column, 210-Cover plate, 211-Clockwork spring, 212-Thin steel ruler A, 213-Thin steel ruler B, 214-Central shaft, 215-Rotating arm, 216-Arc-shaped limiting groove, 3-Display screen, 4-Electrode plate. Detailed Implementation

[0031] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0032] Example 1: As Figures 1-8 As shown, an airbag pulse-assisted rehabilitation physiotherapy device for hand dysfunction includes a wristband integrated assembly 1. The wristband integrated assembly 1 includes a wristband body 101, a display screen 3 and a wrist airbag 102 connected to the wristband body 101. The wristband body 101 is equipped with a main control module 103, as well as a power supply, a low-frequency pulse module 104, a micro piezoelectric pump module 105 and a rope drive module 112 electrically connected to the main control module 103, for realizing the coordinated control of each module.

[0033] The wristband body 101 is an open-loop carrier. The display screen 3 is connected to the top of the wristband body 101. The wrist airbag 102 is adapted to the shape of the wristband body 101 and is connected to the inner circular surface of the wristband body 101. Velcro is attached to the wristband body 101 to accommodate the wearing needs of different patients. The wristband body 101 is made of medical-grade flexible plastic material, and the Velcro can be adjusted according to the patient's wrist circumference, accommodating patients with wrist circumferences of 15-20cm.

[0034] The finger extender / flexor 2 includes a fingertip retainer 201 and one or two knuckle retainers 202. Taking single-handed use as an example, five sets of finger extender / flexor 2 are required. The thumb finger extender / flexor 2 includes one fingertip retainer 201 and one knuckle retainer 202, while the four fingers' finger extender / flexor 2 includes one fingertip retainer 201 and two knuckle retainers 202. Both the fingertip retainer 201 and the knuckle retainers 202 are made of medical-grade flexible plastic to improve wearing comfort.

[0035] Support blocks 203 are connected to the sides of the fingertip fixing member 201 and the knuckle fixing member 202, and elastic length adjustment members are provided between adjacent support blocks 203; a fingertip airbag 204 is connected inside the fingertip fixing member 201, and a knuckle airbag 205 is connected inside the knuckle fixing member 202. The miniature pneumatic pump module 105 is connected to the wrist airbag 102, the fingertip airbag 204 and the knuckle airbag 205 through an air tube to realize inflation and deflation.

[0036] Both the finger tip airbag and the knuckle airbag 205 are made of medical-grade silicone, offering excellent biocompatibility and flexibility. The finger tip airbag has a volume of 2-3 ml, while the knuckle airbag 205 has a volume of 1-2 ml, adaptable to fingers of varying sizes. The trachea is made of 0.6 mm diameter Teflon or polyurethane tubing.

[0037] The fingertip fixation component 201 has a circular sleeve structure with one end open, and the knuckle fixation component 202 has an unclosed ring structure. The fingertip airbag 204 and the knuckle airbag 205 are respectively adapted to the shape of the fingertip fixation component 201 and the knuckle fixation component 202 and are respectively connected to the inner wall of the fingertip fixation component 201 and the knuckle fixation component 202.

[0038] Supports 207 are connected to the fingertip fixation piece 201 and the knuckle fixation piece 202. Luer connectors are connected to the fingertip airbag 204 and the knuckle airbag 205 to ensure no air leakage during inflation. The connectors are connected to the support 207. The air tube includes a main tube and a branch tube. One end of the branch tube is connected to the connector, and the other end is connected to the main tube. One end of the main tube is connected to the miniature pneumatic electric pump module 105. The wristband body 101 is provided with several first through holes 106 for the air tube to pass through. The miniature pneumatic electric pump module 105 uses a miniature diaphragm air pump, model Binaca SX-1, with dimensions of 32×18×8mm, an operating voltage of 3V, and a maximum output pressure of 0.3bar, providing controllable air pressure for each airbag.

[0039] Two bases 206 are connected to the support block 203, corresponding to the palm and back of the hand respectively; one end of the rope is connected to the rope drive module 112 and the other end is connected to the base 206. The rope drive module 112 drives the rope to pull the finger extension and flexion member 2 to achieve finger extension and flexion; the electrode 4 is electrically connected to the low frequency pulse module 104 and can be attached to the acupoints on the hand.

[0040] The rope-driven modules 112 are arranged in two sets, one above the other. The upper set of rope-driven modules 112 drives the base 206 on the back of the hand, and the lower set drives the base 206 on the palm of the hand. Each rope-driven module 112 includes a motor 108. Several motors 108 are connected to the mounting slots in the inner housing 107 of the wristband body 101. A winch 109 is connected to the power output end of the motor 108. One end of the rope is fixedly connected to the winch 109. Several second through holes 110 are provided on the wristband body 101. The other end of the rope passes through the second through holes 110 and is connected to each base 206. The rotation of the motor 108 drives the rope to extend and retract, realizing the bending and stretching movements of the fingers.

[0041] The 108 miniature coreless motor is a Maxon EC 6 Flat, with a diameter of 6mm and a length of 12mm. It operates at 3V and, when paired with a miniature gearbox, such as the Maxon GP 6C 11:1 series planetary gearbox, can output torque up to 6N·m, meeting the needs of finger actuation.

[0042] The cord is a flexible medical nylon thread, with one cord corresponding to each base 206. The base 206 of the knuckle fixation member 202 is provided with a thread hole for the nylon thread to pass through, so as to prevent the cords on the same finger extension member 2 from crossing and getting tangled.

[0043] The length adjustment component includes a base 208, three support pillars 209 connected to the base 208, and a cover plate 210 connected to the base 208. A spring-loaded mechanism 211 is connected to each support pillar 209. One spring-loaded mechanism 211 is connected to a thin steel ruler A212, one end of which is connected to a support block 203 on one side. Two other spring-loaded mechanisms 211 are connected to thin steel rulers B213, which are connected to the support block 203 on the other side. The tail of the thin steel ruler is connected to the spring-loaded mechanism 211, allowing for extension and retraction adjustment according to the patient's finger length, saving storage space when not worn.

[0044] A central shaft 214 is connected to the base 208, and a rotating arm 215 is rotatably connected to the central shaft 214. The support column 209 where the thin steel ruler A212 is located is connected to the rotating arm 215. An arc-shaped limiting groove 216 is provided on the base 208, and the bottom end of the rotating arm 215 slides in the arc-shaped limiting groove 216.

[0045] The low-frequency pulse module 104 is connected to a wire, and the wristband body 101 has several third through holes 111 through which the wire passes. One end of the wire is connected to the electrode pad 4. The electrode pad 4 is made of medical conductive silicone, which has good fit and conductivity. It can be applied to acupoints such as Hegu (midpoint of the radial side of the second metacarpal bone on the back of the hand), Quchi (in the depression of the elbow crease on the outer side of the arm), Yuji (suitable for thumb rehabilitation, midpoint of the thenar eminence of the palm, radial edge of the first metacarpal bone), and Houxi (suitable for finger extension, relieving extensor weakness). The electrode pad 4 is connected to the low-frequency pulse module 104 in the wrist integrated component through the connecting wire. The pulse frequency of the low-frequency pulse module 104 can be adjusted in the range of 20-100Hz, and the output voltage is 5-15V. The parameters can be adjusted according to the patient's rehabilitation stage.

[0046] Reference acupoints for rehabilitation: Hegu (LI4), located at the midpoint of the radial side of the second metacarpal bone on the back of the hand, can unblock meridians, promote blood circulation, and relieve muscle spasms. It is a core acupoint for improving numbness, weakness, and difficulty in flexion and extension of the fingers after hemiplegia. It can activate nerve conduction in the hand and promote the recovery of finger motor function. It can be stimulated throughout the entire process of finger bending and extension, and is especially suitable for finger “6” deformity (flexor muscle spasm). When combined with rope-driven extension exercises with synchronous pulses, it can relieve finger curling. Quchi (LI11), located at the lateral end of the elbow crease, when the elbow is flexed (90°), is the midpoint of the line connecting Chize (LU5) and the lateral epicondyle of the humerus (in the depression of the elbow crease on the lateral side of the arm). It can unblock meridians, harmonize qi and blood, improve upper limb (including fingers) motor disorders, and relieve muscle tension in the arm and fingers. It is especially suitable for stimulating when there is weakness in finger extension and wrist drop (“7” deformity). Synchronized pulses during finger extension movements assist the rope-driven module 112 in stretching the fingers and enhancing extensor muscle strength. The Yuji acupoint, located at the midpoint of the thenar eminence (the muscle protruding at the base of the thumb), on the radial side of the first metacarpal bone (pressing it elicits a noticeable soreness and distension, near the junction of the thumb and palm), clears heat and phlegm, unblocks meridians, and specifically improves thumb adduction and curling (corresponding to the core problem of "6" deformity), enhancing thumb flexion and extension control and relieving thumb numbness. Stimulation during thumb flexion / extension movements is particularly suitable for correcting the deformed posture of "thumb adduction." The Houxi acupoint, located on the ulnar side of the palm (near the little finger), on the ulnar side behind the fifth metacarpophalangeal joint (behind the junction of the little finger and palm), at the junction of the red and white skin (the area where the skin of the palm and back of the hand meet), unblocks meridians, strengthens muscles and bones, improves weak finger extension and wrist stiffness, and is particularly suitable for stimulating when the little finger and ring finger are difficult to extend. Synchronized pulses during finger extension movements, combined with the extension drive of the rope-driven module 112, activate the extensor nerve innervation. The Zhongchong acupoint, located at the center of the tip of the middle finger (inner edge of the nail, no need to penetrate deep into the nail bed, just close to the fingertip skin), clears the mind and opens the orifices, unblocks the meridians, and improves stiffness and dullness in the middle finger, especially suitable for cases where the middle finger is "stuck" and unable to flex or extend after hemiplegia. It is applicable to scenarios where the middle finger flexes / extends alone, or to stimulate during coordinated five-finger movements, helping to relieve finger spasms. The Erjian acupoint, located on the radial anterior edge of the second metacarpophalangeal joint on the back of the hand (outer side of the connection between the index finger and the palm, near the Hegu acupoint, pressing it produces a sore and distended sensation), is the Ying-Spring point of the Large Intestine Meridian of Hand Yangming. It clears Yangming, unblocks joints, improves numbness and difficulty in flexion and extension of the index finger, and enhances the index finger's grip strength (addressing the core need of hemiplegic patients for "difficulty in grasping"). Stimulation during index finger flexion (grasping simulation) and extension movements, combined with the flexion drive of the rope-driven module 112, strengthens the flexor-extensor balance of the index finger; Shaoze acupoint, located on the ulnar side of the distal phalanx of the little finger (outer side of the little fingertip, inner side of the nail edge). It can clear heat and open the orifices, unblock the meridians and activate collaterals, relieve little finger curling and decreased sensation, and help improve the coordinated movement of the little finger and ring finger (such as the linkage during fist clenching and extension). Stimulation is performed during little finger flexion / extension or coordinated fist clenching movements of all five fingers.

[0047] The main control module 103 uses an STM32F103 chip, which is electrically connected to the micro piezoelectric pump module 105, the rope drive module 112, and the low-frequency pulse module 104 via wires to achieve coordinated control of these modules. The main control chip can adjust the inflation speed and pressure of the micro piezoelectric pump module 105 via PWM signals, and control the finger bending angle by controlling the forward and reverse rotation of the motor 108. The bending angle is adjustable within the range of 0-90°. Simultaneously, through a pre-set rope drive motion mode, when the finger bends to a preset state, the low-frequency pulse module 104 is triggered, outputting a pulse signal. When the finger stretches back to its original position, the low-frequency pulse module 104 stops working, achieving synchronous coordination between the rope drive operation and the low-frequency pulse.

[0048] Example 2: This example is a further improvement on Example 1. The main improvement is that Example 1 could not monitor the patient's blood pressure and heart rate during use; while in this example, the above-mentioned defects can be avoided. Specifically: A heart rate and blood pressure sensor 113 is connected to the wristband body 101. The heart rate and blood pressure sensor 113 is electrically connected to the main control module 103. The heart rate and blood pressure sensor 113 is exposed on the inner circular surface of the wristband body 101 and is electrically connected to the main control module 103. In this embodiment, a heart rate and blood pressure sensor 113 is added to reflect the patient's physical functions, such as high and low blood pressure, heart rate, etc.

[0049] Apart from the above, this embodiment is exactly the same as Embodiment 1, and will not be described again here.

[0050] The specific working principle of this invention is as follows: First, the patient puts their fingers into the finger extension / flexion device 2, inserts the fingertip into the fingertip fixation device 201, and puts the knuckle into the knuckle fixation device 202. Then, the patient adjusts the Velcro of the wristband integrated component 1 so that the ring carrier fits tightly against the wrist without any pressure.

[0051] After the device is worn on the patient's hand, the length adjustment component can be moved according to the length of the patient's fingers to determine a suitable position. At this time, the thin steel rulers A212 and B213 inside the length adjustment component will be pulled out, and the spring 211 will store elastic potential energy, ensuring that after the patient removes the device, the thin steel rulers A212 and B213 will be retracted into the length adjustment component by the spring 211. After the device is worn comfortably, the micro-pneumatic pump module 105 is activated by clicking the display screen 3. The air tube inflates the wrist airbag 102, finger airbags, and knuckle airbags 205, so that the wristband 101 fits the patient's wrist, and the knuckle airbags 205 wrap around and hold the device in place, ensuring that it will not fall off during rehabilitation. The micro-pneumatic pump module 105 stops working after the inflation pressure reaches the preset value.

[0052] Subsequently, the main control chip controls the motor 108 of the rope drive module 112 to rotate forward, driving the ropes corresponding to each finger to extend and retract, driving the fingers to perform bending movements. The main control chip triggers the low-frequency pulse module 104 to start according to the nodes set by the finger movements, and the electrode plate 4 outputs pulse signals to the acupoints on the hand. After the finger bending movement is completed, the motor 108 reverses, driving the rope to release, and the rope drive module 112 on the back of the hand starts to work, driving the fingers to naturally stretch and return to their original position. At the same time, the low-frequency pulse module 104 stops working. The above bending-stretching-pulse stimulation process is repeated to complete the rehabilitation training. The heart rate and blood pressure sensor 113 can be used to detect the patient's blood pressure and heart rate, and provide feedback through the display screen 3 to facilitate the patient's understanding of their physical condition. After the training is completed, the main control chip controls the micro-pneumatic pump module 105 to depressurize, and each airbag returns to its initial state, allowing the patient to easily remove the device.

[0053] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent transformations or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An air bag pulse synergic rehabilitation physiotherapy device for hand dysfunction, characterized in that, The application relates to a wristband integrated assembly (1) which comprises a wristband body (101), a display screen (3) and a wrist air bag (102) connected to the wristband body (101), a main control module (103) arranged in the wristband body (101), and a power supply, a low-frequency pulse module (104), a micro piezoelectric air pump module (105) and a rope driving module (112) electrically connected to the main control module (103). The finger stretching and bending device (2) comprises a fingertip fixing member (201) and one or two knuckle fixing members (202), the fingertip fixing member (201) and the knuckle fixing member (202) are provided with support blocks (203) on the side portions, and elastic length adjusting members are arranged between the adjacent support blocks (203). The fingertip fixing member (201) is connected with a fingertip air bag (204), the knuckle fixing member (202) is connected with a knuckle air bag (205), and the micro piezoelectric air pump module (105) is connected with the wrist air bag (102), the fingertip air bag (204) and the knuckle air bag (205) through air pipes to realize air charging and discharging. The support blocks (203) are connected with two bases (206) corresponding to the palm and the back of the hand respectively, one end of a rope is connected to the rope driving module (112), the other end of the rope is connected to the base (206), and the rope driving module (112) drives the rope to pull the finger stretching and bending device (2) to realize the stretching and bending of the fingers. An electrode sheet (4) is electrically connected to the low-frequency pulse module (104), and the electrode sheet (4) can be attached to the acupoint of the hand. The wristband body (101) is an unsealed ring-shaped carrier, the display screen (3) is connected to the top of the wristband body (101), the wrist air bag (102) is matched with the shape of the wristband body (101), the wrist air bag (102) is connected to the inner circular surface of the wristband body (101), and the wristband body (101) is connected with magic tape to adapt to the wearing requirements of different patients.

2. The pneumatic pulse synergic rehabilitation physiotherapy device for hand dysfunction as claimed in claim-1, wherein: The fingertip fixing member (201) is a circular sleeve structure with one end being opened, the knuckle fixing member (202) is an unsealed ring structure, the fingertip air bag (204) and the knuckle air bag (205) are matched with the shapes of the fingertip fixing member (201) and the knuckle fixing member (202) respectively and are connected to the inner walls of the fingertip fixing member (201) and the knuckle fixing member (202) respectively.

3. The air-pulse coordinated rehabilitation therapy device for hand dysfunction according to claim 1, wherein: The fingertip fixing member (201) and the knuckle fixing member (202) are connected with supports (207), the fingertip air bag (204) and the knuckle air bag (205) are connected with joints, and the joints are connected to the supports (207); the air pipes comprise main pipes and branch pipes, one end of the branch pipes is connected to the joints, the other end of the branch pipes is connected to the main pipes in parallel, one end of the main pipes is connected to the micro piezoelectric air pump module (105), and the wristband body (101) is provided with a plurality of first through holes (106) for the air pipes.

4. The pneumatic pulse synergic remedial therapy device for hand dysfunction according to claim 3, characterized in that: ​ 5. The air-pulse coordinated rehabilitation therapy device for hand dysfunction according to claim 1, wherein: The rope drive module (112) is arranged in two groups from top to bottom, the upper group of rope drive modules (112) drive the bases (206) of the back of the hand, and the lower group of rope drive modules (112) drive the bases (206) of the palm; the rope drive module (112) comprises a motor (108), a plurality of motors (108) are connected in the mounting groove of the box (107) in the wrist strap body (101), a winch (109) is connected to the power output end of the motor (108), one end of the rope is fixedly connected to the winch (109), a plurality of second through holes (110) are arranged on the wrist strap body (101), and the other end of the rope passes through the second through hole (110) and is connected to each base (206) respectively.

6. The pneumatic pulse synergic remedial therapy device for hand dysfunction according to claim 5, characterized in that: The rope is a flexible medical nylon line, each base (206) corresponds to a rope, and the base (206) of the knuckle fixing piece (202) is provided with a wire passing hole for the nylon line to pass through, so as to prevent the ropes on the same finger stretching and bending piece (2) from crossing and winding.

7. The pneumatic pulse synergic remedial therapy device for hand dysfunction according to claim 1, wherein: The length adjusting piece comprises a base (208), three support columns (209) are connected to the base (208), and a cover plate (210) is connected to the base (208); a clock spring (211) is connected to the support column (209), one of the clock springs (211) is connected with a steel ruler A (212), one end of the steel ruler A (212) is connected to the support block (203) on one side, and the other two clock springs (211) are connected with steel rulers B (213), and the two steel rulers B (213) are connected to the support block (203) on the other side.

8. The pneumatic pulse synergic remedial therapy device for hand dysfunction according to claim 7, characterized in that: The base (208) is connected with a center shaft (214), the center shaft (214) is rotatably connected with a rotating arm (215), the support column (209) where the steel ruler A (212) is located is connected to the rotating arm (215), and the base (208) is provided with an arc-shaped limiting groove (216), and the bottom end of the rotating arm (215) is slidingly fitted in the arc-shaped limiting groove (216).

9. The pneumatic pulse synergic remedial therapy device for hand dysfunction according to claim 1, wherein: The low-frequency pulse module (104) is connected with a wire, the wrist strap body (101) is provided with a plurality of third through holes (111) through which the wire passes, and one end of the wire is connected to the electrode sheet (4).

10. The pneumatic pulse synergic remedial therapy device for hand dysfunction according to claim 1, characterized in that: The wrist strap body (101) is connected with a heart rate and blood pressure sensor (113), the heart rate and blood pressure sensor (113) is electrically connected to the main control module (103), the heart rate and blood pressure sensor (113) is exposed on the inner circular surface of the wrist strap body (101), and the heart rate and blood pressure sensor (113) is electrically connected to the main control module (103).

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