Auxiliary rehabilitation equipment for hemiplegic lower limb walking training

Abstract

The utility model belongs to the technical field of rehabilitation devices, and discloses a hemiplegic lower limb walking training auxiliary rehabilitation device which comprises a running machine, a main body support is arranged on the running machine, a rehabilitation waistcoat and a control terminal are installed on the main body support, and a treatment electrode is connected to the control terminal. An electrical stimulation circuit is arranged in the control terminal, the electrical stimulation circuit comprises a microcontroller, a DAC conversion circuit, a power amplification circuit and a booster circuit which are connected in sequence, and the output end of the booster circuit is connected with the therapeutic electrode. The lower limb walking training device can be used for early-stage lower limb walking training of a hemiplegic patient, and the purposes of correcting abnormal gaits, preventing sports injuries and reducing abnormal muscular tension can be achieved through the combined action of weight reduction walking training, rehabilitation waistcoat posture correction and functional electrical stimulation, so that a good walking training effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rehabilitation appliances, and in particular relates to auxiliary rehabilitation equipment for hemiplegic lower limb walking training. Background Art

[0002] Stroke refers to a type of disease in which cerebrovascular lesions cause damage to brain tissue. The main clinical manifestations after stroke are hemiplegia, difficulty in bearing weight on the lower limbs, and weakened or disappeared muscle strength. If early walking training is not performed, muscle atrophy will occur and the ability to carry out daily activities will be greatly reduced. Therefore, early lower limb walking training is an important part of the rehabilitation of hemiplegic patients. However, since the muscle strength of the lower limbs of hemiplegic patients has not been restored, forcing patients to use traditional walking aids for walking training in the early stage may cause abnormal limb force lines in patients, leading to abnormal gait, increased muscle tension and the occurrence of sports injuries. Therefore, a more effective hemiplegic lower limb walking aid is needed to assist hemiplegic patients to complete walking function training in the correct movement mode at an early stage, so as to solve the above problems and improve the effect of rehabilitation treatment. Utility Model Content

[0003] The utility model aims to provide a walking training auxiliary rehabilitation device for hemiplegic lower limbs, so as to solve the above problems existing in the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides an auxiliary rehabilitation device for walking training of hemiplegic lower limbs, comprising a treadmill, wherein a main body support is provided on the treadmill, a rehabilitation vest and a control terminal are installed on the main body support, a GCT rehabilitation rope is provided on the rehabilitation vest, a treatment electrode is connected to the control terminal, an electric stimulation circuit is arranged inside the control terminal, the electric stimulation circuit comprises a microcontroller, a DAC conversion circuit, a power amplifier circuit and a boost circuit connected in sequence, the output end of the boost circuit is connected to the treatment electrode, the microcontroller is used to output a digital signal to the DAC conversion circuit, the DAC conversion circuit is used to perform digital-to-analog conversion on the digital signal, generate an analog signal, and transmit the analog signal to the power amplifier circuit, the power amplifier circuit is used to perform power amplification processing on the analog signal to obtain the power amplification signal, and transmit the power amplification signal to the boost circuit, the boost circuit is used to perform boost processing on the power amplification signal to obtain the electric stimulation signal, and transmit the electric stimulation signal to the treatment electrode.

[0006] When it is used, hemiplegic patients can wear rehabilitation vests on a treadmill for rehabilitation training. By binding the GCT rehabilitation belt to the hemiplegic patient, part of the patient's body weight is suspended to reduce the weight on the patient's lower limbs when walking. The treadmill can be used to help the patient to perform walking training and balance training, improve the mobility of hemiplegic patients, and the rehabilitation vest can play a role in posture correction, sensory promotion, core stability, etc. for hemiplegic patients. During training, synchronously, the treatment electrode can be attached to the limbs of the hemiplegic patient, and the microcontroller outputs a digital signal to the DAC conversion circuit, the DAC conversion circuit performs digital-to-analog conversion on the digital signal to generate an analog signal, and transmits the analog signal to the power amplifier circuit, the power amplifier circuit performs power amplification processing on the analog signal to obtain a power amplification signal, and transmits the power amplification signal to the boost circuit, the boost circuit performs boost processing on the power amplification signal to obtain an electrical stimulation signal, and transmits the electrical stimulation signal to the treatment electrode, and the electrical stimulation signal is transmitted to the limbs of the hemiplegic patient through the treatment electrode for electrical stimulation treatment to assist the walking rehabilitation training of the hemiplegic patient.

[0007] In one possible design, a feedback circuit is connected between the boost circuit and the microcontroller. The feedback circuit is used to perform current sampling on the electrical stimulation signal output by the boost circuit, generate a feedback signal, and transmit the feedback signal to the microcontroller. The microcontroller controls the output of the digital signal according to the feedback signal.

[0008] In a possible design, a power supply module is also provided inside the control terminal. The power supply module includes a lithium battery and a voltage stabilizing circuit connected to each other. The voltage stabilizing circuit is used to perform voltage conversion on the output power of the lithium battery and output the working power to the electrical stimulation circuit.

[0009] In a possible design, a control button is provided on the control terminal, and the control button is connected to the power module and is used to control the output on and off of the power module.

[0010] In a possible design, the microcontroller is also connected to a Bluetooth module.

[0011] In a possible design, the control terminal is provided with a touch screen, and the touch screen is connected to the microcontroller.

[0012] In a possible design, a treadmill sampling circuit is provided in the treadmill, and the treadmill sampling circuit is connected to a microcontroller for collecting a rotation speed signal of the treadmill and transmitting the rotation speed signal to the microcontroller, and the microcontroller transmits the rotation speed signal to a touch display screen.

[0013] In a possible design, an alarm circuit is also provided inside the control terminal, and the alarm circuit is connected to the microcontroller.

[0014] Beneficial effects: The utility model can correct abnormal gait, prevent sports injuries, and reduce abnormal muscle tension through the combined effects of weight loss walking training, rehabilitation vest posture correction, and functional electrical stimulation, thereby achieving a good walking training effect. The utility model can be used for early lower limb walking training of hemiplegic patients, and can effectively solve the problems of increased muscle tension, sports injuries, and insufficient muscle strength caused by abnormal movement patterns in early walking training of hemiplegic patients, and improve the walking function training effect of lower limbs of hemiplegic patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the equipment of the utility model;

[0017] Figure 2 A schematic diagram of the circuit connection architecture of the control terminal;

[0018] Figure 3 It is a chip schematic diagram of a microcontroller;

[0019] Figure 4 is a schematic diagram of the electrical stimulation circuit;

[0020] Figure 5 is a schematic diagram of the feedback circuit;

[0021] Figure 6 is a schematic diagram of a voltage stabilizing circuit;

[0022] Figure 7 This is a schematic diagram of the treadmill sampling circuit;

[0023] Figure 8 This is a schematic diagram of the alarm circuit.

[0024] In the figure: 1. Treadmill; 2. Main frame; 3. Rehabilitation vest; 4. Control terminal. DETAILED DESCRIPTION

[0025] It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. The specific structural and functional details disclosed herein are only used to describe the exemplary embodiments of the present invention. However, the present invention can be embodied in many alternative forms, and it should not be understood that the present invention is limited to the embodiments described herein.

[0026] It should be understood that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments can be understood according to specific circumstances.

[0027] In the following description, certain details are provided to facilitate a complete understanding of the example embodiments. However, it will be appreciated by those of ordinary skill in the art that the example embodiments may be implemented without these certain details. For example, the system may be shown in a block diagram to avoid obscuring the example with unnecessary details. In other embodiments, well-known processes, structures, and techniques may not be shown in unnecessary detail to avoid obscuring the embodiments.

[0028] Example:

[0029] This embodiment provides a walking training auxiliary rehabilitation device for hemiplegic lower limbs, such as Figure 1 to Figure 2 As shown, it includes a treadmill 1, the treadmill 1 is provided with a main body support 2, the main body support 2 is installed with a rehabilitation vest 3 and a control terminal 4, the rehabilitation vest 3 is provided with a GCT rehabilitation rope, the control terminal 4 is connected to a treatment electrode, and an electric stimulation circuit is arranged inside the control terminal 4, the electric stimulation circuit includes a microcontroller, a DAC conversion circuit, a power amplifier circuit and a boost circuit connected in sequence, the output end of the boost circuit is connected to the treatment electrode, the microcontroller is used to output a digital signal to the DAC conversion circuit, the DAC conversion circuit is used to perform digital-to-analog conversion on the digital signal, generate an analog signal, and transmit the analog signal to the power amplifier circuit, the power amplifier circuit is used to perform power amplification processing on the analog signal to obtain a power amplification signal, and transmit the power amplification signal to the boost circuit, the boost circuit is used to perform boost processing on the power amplification signal to obtain an electric stimulation signal, and transmit the electric stimulation signal to the treatment electrode.

[0030] In specific implementation, hemiplegic patients can wear the rehabilitation vest 3 on the treadmill 1 for rehabilitation training. By binding the GCT rehabilitation rope to the hemiplegic patient and hanging part of the patient's body weight, the weight on the patient's lower limbs is reduced when the patient walks. The treadmill 1 is used to help the patient to perform walking training and balance training, thereby improving the mobility of hemiplegic patients. The rehabilitation vest 3 can correct the posture, promote sensation, stabilize the core, etc. for the hemiplegic patients. The rehabilitation vest 3 can use elastic and inelastic cloth belts, elastic bands, bandages, etc. to act on the limbs of hemiplegic patients through specific winding methods. At the same time, the treatment electrodes can be attached to the limbs of the hemiplegic patient, and the digital signal can be output to the DAC conversion circuit through the microcontroller. The DAC conversion circuit performs digital-to-analog conversion on the digital signal to generate an analog signal, and the analog signal is transmitted to the power amplifier circuit. The power amplifier circuit performs power amplification processing on the analog signal to obtain a power amplification signal, and the power amplification signal is transmitted to the boost circuit. The boost circuit performs boost processing on the power amplification signal to obtain an electrical stimulation signal, and the electrical stimulation signal is transmitted to the treatment electrode. The electrical stimulation signal is transmitted to the limbs of the hemiplegic patient through the treatment electrode for electrical stimulation therapy to assist the walking rehabilitation training of the hemiplegic patient.

[0031] like Figure 3 As shown, the microcontroller can be a STM32F103ZET6 single-chip microcomputer. Figure 4 As shown, the DAC conversion circuit can use the DAC0832 D / A conversion integrated chip to perform digital-to-analog conversion of the microcontroller output signal, the power amplifier circuit can use the LM4871 power amplifier chip to perform power amplification processing on the analog signal converted by the DAC conversion circuit, and the boost circuit can use a coupling transformer to boost the power amplification signal output by the power amplifier circuit, output the 0-50V electrical stimulation signal required for human body electrical stimulation to the treatment electrode interface, and transmit it to the treatment electrode through the treatment electrode interface.

[0032] Furthermore, the boost circuit is connected to the microcontroller as follows Figure 5 The feedback circuit shown is used to sample the current of the electrical stimulation signal output by the boost circuit, generate a feedback signal, and transmit the feedback signal to the microcontroller. The microcontroller controls the output of the digital signal according to the feedback signal to ensure that the current of the electrical stimulation signal finally output by the electrical stimulation circuit is within a reasonable range (0-25mA) to prevent damage to the human body caused by excessive current.

[0033] Furthermore, the control terminal 4 is also provided with a power module inside, and the power module includes a lithium battery and a voltage stabilizing circuit connected to each other, such as Figure 6As shown, the voltage stabilizing circuit is used to perform voltage conversion processing on the output power of the lithium battery, and output the working power to the electrical stimulation circuit. The lithium battery can be a 12V rechargeable lithium battery. The control terminal 4 is provided with a control button, which is connected to the power module and is used to control the output on and off of the power module, that is, to control the switch of the control terminal 4. The microcontroller is also connected to a Bluetooth module, through which the data connection between the control terminal 4 and the treadmill system and the external terminal can be established, so as to check and control the status of the treadmill 1.

[0034] Furthermore, the control terminal 4 is provided with a touch screen, which is connected to the microcontroller. The touch screen can provide a friendly human-computer interaction interface to display the working status of the control terminal 4 in real time and facilitate the user to set and adjust the electrical stimulation parameters. Figure 7 The treadmill sampling circuit shown in the figure is connected to the microcontroller and is used to collect the speed signal of the treadmill 1 and transmit the speed signal to the microcontroller. The microcontroller transmits the speed signal to the touch screen for display and can adjust the current stimulation mode of the electrical stimulation circuit according to the speed signal to achieve the coordination of walking training and electrical stimulation. The control terminal 4 is also provided with the following Figure 8 The alarm circuit shown is connected to a microcontroller, and the alarm circuit is provided with a speaker. When the microcontroller detects that the treadmill or the control terminal 4 is working abnormally, the alarm circuit can be controlled to emit an alarm sound.

[0035] Furthermore, the DAC conversion circuit, power amplifier circuit, boost circuit and feedback circuit can be set in multiple ways, and the microcontroller can perform multi-way unified control. The treatment electrode can be set in multiple ways, and each treatment electrode is connected to an electrical stimulation circuit respectively. The microcontroller can output multiple digital signals respectively, so that each electrical stimulation circuit obtains a different electrical stimulation signal, and electrical stimulation treatment is performed on different parts through each treatment electrode.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A walking training auxiliary rehabilitation device for hemiplegic lower limbs, characterized in that: The invention comprises a treadmill (1), wherein a main frame (2) is provided on the treadmill (1), a rehabilitation vest (3) and a control terminal (4) are installed on the main frame (2), a GCT rehabilitation belt is provided on the rehabilitation vest (3), a treatment electrode is connected to the control terminal (4), an electric stimulation circuit is arranged inside the control terminal (4), the electric stimulation circuit comprises a microcontroller, a DAC conversion circuit, a power amplifier circuit and a boost circuit connected in sequence, the output end of the boost circuit is connected to the treatment electrode, the microcontroller is used to output a digital signal to the DAC conversion circuit, the DAC conversion circuit is used to perform digital-to-analog conversion on the digital signal to generate an analog signal, and transmit the analog signal to the power amplifier circuit, the power amplifier circuit is used to perform power amplification processing on the analog signal to obtain a power amplification signal, and transmit the power amplification signal to the boost circuit, the boost circuit is used to perform boost processing on the power amplification signal to obtain an electric stimulation signal, and transmit the electric stimulation signal to the treatment electrode.

2. The walking training auxiliary rehabilitation device for hemiplegic lower limbs according to claim 1, characterized in that: A feedback circuit is connected between the boost circuit and the microcontroller. The feedback circuit is used to perform current sampling on the electrical stimulation signal output by the boost circuit, generate a feedback signal, and transmit the feedback signal to the microcontroller. The microcontroller controls the output of the digital signal according to the feedback signal.

3. The walking training auxiliary rehabilitation device for hemiplegic lower limbs according to claim 1, characterized in that: The control terminal (4) is also provided with a power module inside. The power module includes a lithium battery and a voltage stabilizing circuit which are connected to each other. The voltage stabilizing circuit is used to perform voltage conversion processing on the output power of the lithium battery and output the working power to the electrical stimulation circuit.

4. The walking training auxiliary rehabilitation device for hemiplegic lower limbs according to claim 3, characterized in that: The control terminal (4) is provided with a control button, which is connected to the power module and is used to control the output on and off of the power module.

5. The walking training auxiliary rehabilitation device for hemiplegic lower limbs according to claim 1, characterized in that: The microcontroller is also connected to a Bluetooth module.

6. The walking training auxiliary rehabilitation device for hemiplegic lower limbs according to claim 1, characterized in that: The control terminal (4) is provided with a touch display screen, and the touch display screen is connected to the microcontroller.

7. The walking training auxiliary rehabilitation device for hemiplegic lower limbs according to claim 6, characterized in that: The treadmill (1) is provided with a treadmill sampling circuit, which is connected to a microcontroller and is used to collect a rotation speed signal of the treadmill (1) and transmit the rotation speed signal to the microcontroller, and the microcontroller transmits the rotation speed signal to the touch display screen.

8. The walking training auxiliary rehabilitation device for hemiplegic lower limbs according to claim 7, characterized in that: The control terminal (4) is also provided with an alarm circuit inside, and the alarm circuit is connected to the microcontroller.

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