Finger trainer and training method

Abstract

The present invention discloses a finger trainer and a training method. The finger trainer includes a flexible hand positioning plate, a pulling device, and a reset device. One end of the hand positioning plate is a fixed end, and the other end is a free end. The pulling device is used to pull the free end to cause the hand positioning plate to bend, and the reset device is used to restore the bent hand positioning plate to a flat state. The finger training method provided by the present invention can use the finger trainer to perform opening and closing training on the patient's fingers, promote the recovery of the patient's finger function, and prevent muscle atrophy of the patient's hand. Moreover, the finger trainer can automatically train the patient's fingers, and can set the training duration, training frequency, etc., without the need for manual training by a doctor or the patient's family members, reducing the training cost and the workload of the family members. In addition, the finger trainer is provided with a flexible hand positioning plate and an arm fixing bracket to ensure the comfort of the patient during the training process.

Description

Technical Field

[0001] The present invention relates to the technical field of finger rehabilitation physiotherapy, and particularly relates to a finger training device and a training method. Background Art

[0002] Stroke is a disease caused by cerebral ischemia and hemorrhagic injury, and is one of the most important lethal diseases in the world. There has always been a lack of effective treatment measures, and sequelae such as numbness, hemiplegia, aphasia, central paralysis, agnosia, and crooked mouth and eyes are likely to be left after the onset.

[0003] Most patients with cerebrovascular diseases will have varying degrees of hand dysfunction during the process of functional recovery. One obvious symptom manifested in patients is that the fingers are in a normal closed state and cannot open independently. If the patient's fingers are in a closed state for a long time, the following adverse results will occur: First, the hand is in a contracted state, with obvious muscle atrophy and permanent loss of motor function; second, it will affect the improvement of the patient's daily life self-care ability and the ability to return to society.

[0004] The Chinese invention patent document with the publication number CN109011413A records a flexible airbag type finger rehabilitation training device, a training system and a training method. The Chinese invention patent document with the publication number CN106038199A records a medical rehabilitation device. The Chinese invention patent document with the publication number CN207545440U records a treatment glove. The above three training devices all train the fingers by squeezing, which can promote blood circulation in the fingers, but cannot train the finger flexibility. The training method is single and the training effect is not good. Summary of the Invention

[0005] The present invention aims to provide a finger training device and a training method to solve the technical problem that patients cannot effectively perform rehabilitation training after losing the ability of autonomous control of their fingers in the prior art.

[0006] To solve the above technical problem, one aspect of the present invention is:

[0007] Design a finger training device, including a flexible hand positioning plate, a pulling device and a reset device. One end of the hand positioning plate is a fixed end, and the other end is a free end. The pulling device is used to pull the free end so that the hand positioning plate bends, and the reset device is used to restore the bent hand positioning plate to a flat state.

[0008] Preferably, the pulling device includes a pull rope, a motor and a pull rope reel. The motor is used to drive the pull rope reel. One end of the pull rope is connected to the free end of the hand positioning plate, and the other end is fixed on the pull rope reel.

[0009] Preferably, a speed reducer is provided between the motor and the cable reel. The motor is connected to the speed reducer, and the cable reel is installed on the output shaft of the speed reducer.

[0010] Preferably, the reset device includes an airbag and an air pump. The air pump is connected to the airbag through an air pipe for inflating and deflating the airbag.

[0011] Preferably, a tee joint is connected to the air pipe, and a normally closed solenoid valve is connected to the spare port of the tee joint.

[0012] Preferably, a control system is further included. The control system includes a power supply, a main controller, a motor drive circuit, and a solenoid valve drive circuit. The power supply is used to supply power to the main controller, the motor drive circuit, the solenoid valve drive circuit, the motor, and the normally closed solenoid valve. The main controller drives the motor to rotate through the motor drive circuit and drives the normally closed solenoid valve to act through the solenoid valve drive circuit.

[0013] Preferably, the control system is further provided with a switch button, a frequency modulation button, a training duration button, and a pause button. The switch button is used to start or stop the finger trainer. The frequency modulation button is used to adjust the frequency at which the hand positioning plate bends. The training duration button is used to set the training duration of the finger trainer. The pause button is used to control the finger trainer to pause training or resume training.

[0014] Preferably, a base is further included. The fixed end of the hand positioning plate is provided at the edge of the base. The pulling device and the reset device are both installed in the base; an arm fixing bracket is provided on the base.

[0015] The second aspect of the present invention is:

[0016] Design a finger training method, including:

[0017] Open the patient's fingers and bind them to the hand positioning plate. One end of the hand positioning plate is fixed, and the other end is in a free state;

[0018] Pull the free end of the hand positioning plate through the pulling device. The bending of the hand positioning plate drives the patient's fingers to close. When the patient's fingers are closed to a certain extent, the pulling device stops pulling;

[0019] Then, the bent hand positioning plate is restored to a flat state through the reset device, so that the hand positioning plate drives the patient's fingers to open;

[0020] The pulling device and the reset device act alternately, so that the hand positioning plate drives the patient's fingers to continuously close and open.

[0021] Preferably, one end of the hand positioning plate is fixed on the base, and an arm fixing bracket is arranged on the base, and the patient's forearm is bound to the arm fixing bracket.

[0022] The beneficial technical effects of the present invention are as follows:

[0023] 1. The finger trainer provided by the present invention can perform closing and opening training on the patient's fingers, promote the recovery of the patient's finger function, and prevent muscle atrophy of the patient's hand.

[0024] 2. The finger trainer can automatically train the patient's fingers, and can set the training duration, training frequency, etc., without manual training by a doctor or the patient's family members, reducing the training cost and the workload of the family members.

[0025] 3. The finger trainer is provided with a flexible hand positioning plate and an arm fixing bracket to ensure the comfort of the patient during the training process. Description of the Drawings

[0026] Figure 1 One of the three-dimensional views of the finger trainer in Embodiment 1 of the present invention;

[0027] Figure 2 Another three-dimensional view of the finger trainer in Embodiment 1 of the present invention;

[0028] Figure 3 One of the exploded views of the finger trainer in Embodiment 1 of the present invention;

[0029] Figure 4 Schematic connection diagram of the hand positioning plate and the pulling device of the finger trainer in Embodiment 1 of the present invention;

[0030] Figure 5 Another exploded view of the finger trainer in Embodiment 1 of the present invention;

[0031] Figure 6 Schematic structural diagram of the reset device of the finger trainer in Embodiment 1 of the present invention;

[0032] Figure 7 Schematic diagram of the internal structure of the base of the finger trainer in Embodiment 1 of the present invention;

[0033] Figure 8 Circuit block diagram of the control system of the finger trainer in Embodiment 1 of the present invention;

[0034] Figure 9 Circuit schematic diagram of the main controller of the finger trainer in Embodiment 1 of the present invention;

[0035] Figure 10 Schematic diagram of the principle of the motor drive circuit of the finger trainer in Embodiment 1 of the present invention;

[0036] Figure 11 This is the schematic diagram of the solenoid valve drive circuit of the finger trainer in Embodiment 1 of the present invention;

[0037] Figure 12 This is the flowchart of the finger training method in Embodiment 2 of the present invention.

[0038] In the figure, the reference numerals denote:

[0039] Hand positioning plate 11, long hole 111, hollow connecting column 112, connecting hole 113, base 12, connecting ear 121, connecting belt 122, connecting ring 123, upper housing 124, lower housing 125, arm fixing bracket 13, pull rope 141, motor 142, reducer 143, pull rope reel 144, pull ring 145, airbag 151, interface seat 1511, panel 1512, air pump 152, three-way joint 153, air pipe 154, normally closed solenoid valve 155, solenoid valve control coil 1551, circuit board 16, power supply 161, main controller 162, motor drive circuit 163, relay control coil 1631, solenoid valve drive circuit 164, switch button 165, frequency modulation button 166, training duration button 167, pause button 168. Detailed implementation manners

[0040] The following will describe the detailed implementation manners of the present invention in conjunction with the accompanying drawings and embodiments. However, the following embodiments are only used to illustrate the present invention in detail and do not limit the scope of the present invention in any way.

[0041] Embodiment 1:

[0042] A finger trainer, please refer to Figures 1 to 11 .

[0043] As Figure 1 shown, the finger trainer provided in the embodiment of the present invention includes a hand positioning plate 11. The hand positioning plate 11 is made of flexible materials such as flexible PVC and flexible TPE. The shape and size of the hand positioning plate 11 are similar to those of a human palm. One end of the hand positioning plate 11 is fixed to the edge of the base 12, and the other end is a free end. The base 12 is used to fix the end of the hand positioning plate 11 to tilt slightly upward, so that the free end of the hand positioning plate 11 is in an upward inclined posture, facilitating the patient's hand to be placed on the hand positioning plate 11.

[0044] The outside of the hand positioning plate 11 is wrapped with a layer of non-woven fabric. Long holes 111 are provided at the positions corresponding to the fingers on the hand positioning plate 11. The long holes 111 are used to install finger fixing sleeves. The finger fixing sleeves can be riveted in the long holes 111 by rivets, or both ends of the finger fixing sleeves are fixed in the corresponding long holes 111.

[0045] In addition, an arm fixing bracket 13 is provided on the base 12. The arm fixing bracket 13 is fixed to the base 12 by pasting or riveting. The patient's forearm can be bound to the arm fixing bracket 13, and the outside of the arm fixing bracket 13 is wrapped with a layer of non-woven fabric to increase comfort.

[0046] Furthermore, as Figure 2 shown, on both sides of the base 12, two sets of components for connecting the straps are symmetrically provided. Each set of components includes a connecting ear 121, a connecting strap 122, and a connecting ring 123. The connecting ear 121 is a part of the base 12. One end of the connecting strap 122 is fixed inside the connecting ear 121, and the other end is fixedly connected to the connecting ring 123. A strap can be tied to two symmetrically arranged connecting rings 123 on both sides of the base 12. Therefore, two straps can be tied on the base 12 to fix the patient's forearm.

[0047] Furthermore, a pulling device and a reset device are provided in the base 12. The pulling device is used to pull the free end of the hand positioning plate 11 to cause the hand positioning plate 11 to bend, and the reset device is used to restore the bent hand positioning plate 11 to a flat state.

[0048] For a patient whose fingers are in a closed state and cannot open independently, open the patient's fingers, place the palm down, fix the patient's fingers in the corresponding finger fixing sleeves, then bind the patient's forearm to the arm fixing bracket 13. The pulling device and the reset device act alternately to drive the patient's fingers to close and open alternately, so as to train the patient's fingers.

[0049] As Figure 3 and Figure 4 shown, the pulling device includes a pull rope 141, a motor 142, a speed reducer 143, and a pull rope reel 144. The rotating shaft of the motor 142 is connected to the input shaft of the speed reducer 143, and the pull rope reel 144 is installed on the output shaft of the speed reducer 143. One end of the pull rope 141 is connected with a pull ring 145. A hollow connecting column 112 is fixedly provided on the back of the free end of the hand positioning plate 11, and the pull ring 145 is rotatably installed in the hollow connecting column 112.

[0050] The base 12 includes an upper shell 124 and a lower shell 125. The inside of the upper shell 124 and the lower shell 125 is a cavity structure. The motor 142 and the speed reducer 143 are fixed inside the base 12. When the motor 142 rotates, it can drive the pull rope reel 144 to rotate, and the pull rope 141 is wound on the pull rope reel 144. Thus, the pull rope 141 drives the free end of the hand positioning plate 11 to bend downward, and the hand positioning plate 11 drives the patient's fingers to close. After the hand positioning plate 11 bends to a certain extent, the motor 142 stops rotating.

[0051] As Figure 5 and Figure 6As shown in the figure, the reset device includes an airbag 151 and an air pump 152. The air outlet of the air pump 152 is connected to a three-way joint 153, and the three-way joint 153 is further connected to the airbag 151 through an air pipe 154. The spare port of the three-way joint 153 is connected to a normally closed solenoid valve 155.

[0052] The airbag 151 is made of TPE and nylon materials, which can bear a large pressure to ensure safety. A rigid interface seat 1511 is provided at the bottom of the airbag 151, and an interface for connecting the air pipe 154 is provided on the interface seat 1511.

[0053] A flexible panel 1512 is integrally provided on the upper surface of the airbag 151. The shape of the panel 1512 is adapted to the hand positioning plate 11. The parts on both sides of the airbag 151 respectively correspond to the positions on the hand positioning plate 11 where the thumb and little finger are placed, and the middle part of the airbag 151 corresponds to the positions on the hand positioning plate 11 where the index finger, middle finger, and ring finger are placed. There is no airbag below the part on the hand positioning plate 11 corresponding to the palm, so as to facilitate the closing of the fingers.

[0054] Connecting holes 113 are provided on the hand positioning plate 11, and corresponding connecting holes are provided on the panel 1512. First, the upper surface of the panel 1512 is pasted on the lower surface of the hand positioning plate 11, and then the panel 1512 and the hand positioning plate 11 are connected at the connecting holes 113 by screws or rivets.

[0055] When the hand positioning plate 11 is bent and the motor 142 does not rotate, when the air pump 152 is started, the airbag 151 will be inflated. After being filled with air, the upper surface of the airbag 151 will be in a flat state, and the bent hand positioning plate 11 will also be stretched into a flat state, thereby driving the patient's fingers to open.

[0056] When the pull rope 141 is retracted to pull the hand positioning plate 11 to bend again, the normally closed solenoid valve 155 is opened. The hand positioning plate 11 has a squeezing effect on the airbag 151, and the airbag 151 deforms as the hand positioning plate 11 moves, and the gas in the airbag 151 can be discharged from the normally closed solenoid valve 155.

[0057] As Figure 7 As shown in the figure, the air pump 152, the motor 142, and the reducer 143 are all fixedly installed in the base 12. A circuit board 16 is also provided in the base 12. A control system is provided on the circuit board 16 to control the actions of the motor 142 and the normally closed solenoid valve 155.

[0058] As Figure 8As shown in the figure, the control system includes a power supply 161, a main controller 162, a motor drive circuit 163, and a solenoid valve drive circuit 164. The power supply 161 can provide 3.3V and 5V voltages to supply power to the main controller 162, the motor drive circuit 163, the solenoid valve drive circuit 164, the motor 142, and the normally closed solenoid valve 155. The main controller 162 drives the motor 142 to rotate through the motor drive circuit 163 and drives the normally closed solenoid valve 155 to actuate through the solenoid valve drive circuit 164.

[0059] The model of the air pump 152 is WP32E - 4.5H, the model of the normally closed solenoid valve 155 is WV121E - 4.5A, and the operating voltages of the motor 142, the air pump 152, and the normally closed solenoid valve 155 are all 5V.

[0060] Specifically, as Figure 9 shown, the main controller 162 is an AT89S52 single - chip microcomputer. The pin 19 of the main controller 162 is connected to the peripheral clock circuit, and the pin 9 is connected to the peripheral reset circuit; the pin 39 is connected to the key switch S1, the pin 37 is connected to the key switch S2, the pin 35 is connected to the key switch S3, and the pin 33 is connected to the key switch S4.

[0061] As Figure 3 shown, there are four buttons on both sides of the base 12, namely the power switch button 165, the frequency modulation button 166, the training duration button 167, and the pause button 168, which respectively correspond to Figure 9 the key switches S1, S2, S3, and S4 in

[0062] When the finger trainer is in the shutdown state, long - press the power switch button 165 to start the control system. After startup, the finger trainer starts to work. While the finger trainer is working, the frequency of the bending of the hand positioning plate 11 can be adjusted by pressing the frequency modulation button 166. The frequency of the bending of the hand positioning plate 11 can be switched between 15 times per minute, 20 times per minute, and 25 times per minute. Press the training duration button 167 to set the training duration of the finger trainer. After reaching the set duration, the finger trainer stops working. When it is necessary to pause the work of the finger trainer, press the pause button 168. Press the pause button 168 again, and the finger trainer resumes training.

[0063] As Figure 10 shown, the motor drive circuit 163 consists of a triode Q1, a relay, and a resistor R1. The base of the triode Q1 is connected to the pin 7 of the main controller 162 after being in series with the resistor R1. The collector of the triode Q1 is connected to the 5V power supply after being in series with the relay control coil 1631. The emitter of the triode Q1 is grounded. When the pin 7 of the main controller 162 is at a high level, the relay is attracted, the motor 142 is powered on. When the pin 7 is at a low level, the relay disconnects, and the motor 142 stops rotating.

[0064] As Figure 11 shown, the solenoid valve drive circuit 164 is centered around the triode Q2. The models of both the triode Q1 and the triode Q2 are S8050. The base of the triode Q2 is connected to pin 8 of the main controller 162 after being in series with the resistor R2. The collector of the triode Q1 is connected to the solenoid valve control coil 1551 of the normally-closed solenoid valve 155 in series and then connected to the 5V power supply. The emitter of the triode Q2 is grounded. When the pin 8 of the main controller 162 is at a high level, the normally-closed solenoid valve 155 is energized and opened. When the pin 7 is at a low level, the normally-closed solenoid valve 155 is de-energized.

[0065] Embodiment 2:

[0066] A finger training method, which adopts the finger trainer in Embodiment 1. Please refer to Figure 12 , this finger training method includes:

[0067] Open the patient's fingers and bind them to the hand positioning plate. One end of the hand positioning plate is fixed, and the other end is in a free state.

[0068] When fixing, open the patient's hand, and each finger is fixed to the hand positioning plate through the corresponding finger sleeve, and then bind the patient's forearm to the arm fixing bracket.

[0069] Pull the free end of the hand positioning plate through the pulling device. The bending of the hand positioning plate drives the patient's fingers to close. When the patient's fingers close to a certain extent, the pulling device stops pulling; then use the reset device to restore the bent hand positioning plate to a flat state, so that the hand positioning plate drives the patient's fingers to open; the pulling device and the reset device act alternately, so that the hand positioning plate drives the patient's fingers to continuously close and open.

[0070] The continuous spreading and closing of the patient's fingers can play a role in training, which is beneficial to the recovery of the patient's finger function and can also prevent muscle atrophy of the hand. During the training process, the frequency of the patient's finger opening and closing can be adjusted.

[0071] After reaching the set training duration, the training ends. Remove the patient's hand from the hand positioning plate. Then unbind the patient's forearm from the arm fixing bracket.

[0072] The above has described the present invention in detail in conjunction with the drawings and embodiments. However, those skilled in the art can understand that without departing from the gist of the present invention, various specific parameters in the above embodiments can be changed, forming multiple specific embodiments, which are all within the common change range of the present invention and will not be elaborated herein one by one.

Claims

1. A finger trainer, characterized in that, it includes a flexible hand positioning plate, a pulling device and a reset device. One end of the hand positioning plate is a fixed end, and the other end is a free end. The pulling device is used to pull the free end to cause the hand positioning plate to bend, and the reset device is used to restore the bent hand positioning plate to a flat state. The pulling device includes a pulling rope, a motor and a pulling rope reel. The motor is used to drive the pulling rope reel. One end of the pulling rope is connected to the free end of the hand positioning plate, and the other end is fixed on the pulling rope reel. A speed reducer is provided between the motor and the pulling rope reel. The motor is connected to the speed reducer, and the pulling rope reel is installed on the output shaft of the speed reducer. It further includes a base. The fixed end of the hand positioning plate is provided at the edge of the base. The pulling device and the reset device are both installed in the base; an arm fixing bracket is provided on the base. The reset device includes an airbag and an air pump. The air pump is connected to the airbag through an air pipe to be used for inflating and deflating the airbag. A three-way joint is connected to the air pipe, and a normally closed solenoid valve is connected to the empty port of the three-way joint.

2. The finger trainer according to claim 1, characterized in that, it further includes a control system. The control system includes a power supply, a main controller, a motor drive circuit and a solenoid valve drive circuit. The power supply is used to supply power to the main controller, the motor drive circuit, the solenoid valve drive circuit, the motor and the normally closed solenoid valve. The main controller drives the motor to rotate through the motor drive circuit and drives the normally closed solenoid valve to act through the solenoid valve drive circuit.

3. The finger trainer according to claim 2, characterized in that, the control system is further provided with a switch button, a frequency modulation button, a training duration button and a pause button. The switch button is used to start or stop the finger trainer. The frequency modulation button is used to adjust the bending frequency of the hand positioning plate. The training duration button is used to set the training duration of the finger trainer. The pause button is used to control the finger trainer to pause training or resume training.

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