CN216676712U

CN216676712U - Wearable neuromuscular electrical stimulator and system thereof

Info

Publication number: CN216676712U
Application number: CN202122986605.0U
Authority: CN
Inventors: 贾雯; 姜汉钧; 王志华
Original assignee: Shenzhen Research Institute Tsinghua University
Current assignee: Shenzhen Research Institute Tsinghua University
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-06-07
Anticipated expiration: 2031-11-30

Abstract

The utility model provides a wearable neuromuscular electrical stimulator, which comprises communication equipment, a main controller, input equipment, an electrical stimulation generation circuit and an electrode structure. And data interaction is carried out between the communication equipment and the electronic equipment. The main controller receives the stimulation parameters sent by the electronic equipment through the communication equipment. The stimulation parameters include the duration of operation and the pulse width and period of the stimulation current. The input device adjusts the stimulation parameters according to the pressing operation of the user. The electrical stimulation generating circuit outputs stimulation current under the control of the main controller and can adjust the magnitude of the stimulation current. The electrode structure generates electrical stimulation energy in response to the stimulation current. The input equipment adjusts gears to roughly adjust the stimulation parameters; the electronic device sends the stimulation parameters to the controller for fine adjustment of the stimulation parameters. The electrical stimulation generating circuit adjusts the magnitude of the stimulation current to realize the adjustment of the stimulation intensity. The utility model also provides a wearable neuromuscular electrical stimulator system.

Description

Wearable neuromuscular electrical stimulator and system thereof

Technical Field

The utility model relates to a wearable neuromuscular electrical stimulator and a system thereof, in particular to a wearable neuromuscular electrical stimulator with adjustable stimulation parameters and a system thereof.

Background

The electrical stimulation technology is widely used for pain suppression, micturition reflex, hearing restoration, scoliosis correction, Parkinson disease treatment and the like in clinic, the safety and the effectiveness of the technology are fully verified, and the technology has wide application and industrial prospect in clinic.

Neuromuscular Electrical Stimulation (NMES) technology utilizes low frequency Electrical current to stimulate specific muscle groups through electrodes to twitch or contract, and thus achieve "functional" repair. The technology provides a safe and effective alternative scheme for clinically preventing and treating the deep venous thrombosis of the lower limbs after the operation. The stimulating electrode of the neuromuscular electrical stimulator is attached to the calf bone, so that the common peroneal nerve is stimulated to cause the regular contraction of leg muscle groups, rhythmic foot dorsiflexion activity is generated, blood in a deep and shallow vein system is further discharged by the dilation of the blood vessels of the lower limbs, the venous blood flow speed and the volume in the lower limbs are improved, and the venous stasis condition is improved. Promoting blood circulation, accelerating metabolism of wound tissue, preventing aggregation of blood coagulation substances, reducing reactive adhesion of platelets on lower limb vein intima, and reducing blood hypercoagulability.

The neuromuscular electrical stimulator used in medical institutions generally has large volume and heavy mass, and stimulation electrodes are connected by leads, so that the neuromuscular electrical stimulator is inconvenient to carry and use. Particularly, after the patient is discharged from hospital, a certain period of prognosis treatment is still needed, so that a wearable micro neuromuscular electrical stimulator capable of working for a long time and improving the prognosis effect and treatment and rehabilitation experience of the patient is needed. With the development of microelectronic technology, the neuromuscular electrical stimulator provides a feasible technical approach towards miniaturization, miniaturization and wearable development.

The existing wearable neuromuscular electrical stimulator only provides electrical stimulation in several fixed modes on the neuromuscular stimulator, the intensity, pulse width, period and the like of stimulation current pulses cannot be finely regulated, stored and recorded, and the evaluation of clinical use effect is hindered. Because the stimulation current generated by the neuromuscular electrical stimulator needs to enable the venous blood flow rate of the lower limbs of a patient to be the highest within the range that the patient can bear and feels comfortable, the optimal treatment effect is achieved, the treatment course is further shortened, and the treatment cost is reduced, the stimulation parameters of the neuromuscular electrical stimulator need to be finely regulated and controlled when the neuromuscular electrical stimulator is worn. Meanwhile, the stimulation parameters of each treatment course need to be adjusted according to the stimulation parameters and the treatment effect of the previous treatment course. Therefore, the stimulation parameters for each therapy session need to be stored and recorded. The stimulation parameters include the intensity, pulse width, period, etc. of the stimulation current pulses.

SUMMERY OF THE UTILITY MODEL

In view of this, there is a need to provide a wearable neuromuscular electrical stimulator with adjustable stimulation parameters and a system thereof, which aim to solve the technical problem that the stimulation parameters cannot be finely adjusted and recorded in the prior art.

A wearable neuromuscular electrical stimulator is attached to a living body; the wearable neuromuscular electrical stimulator is used for generating stimulation energy according to the stimulation current; the wearable neuromuscular electrical stimulator includes:

the communication equipment is used for carrying out data interaction with the electronic equipment;

the main controller is used for receiving the stimulation parameters sent by the electronic equipment through the communication equipment; the stimulation parameters comprise working time length, pulse width and period of the stimulation current;

the input device is used for adjusting the stimulation parameters according to the pressing operation of the user;

the electrical stimulation generating circuit is used for outputting the stimulation current under the control of the main controller and adjusting the magnitude of the stimulation current; and

an electrode structure for generating electrical stimulation energy in dependence on the stimulation current;

wherein the wearable neuromuscular electrical stimulator includes a plurality of gears; each of the gears corresponds to a different one of the stimulation parameters; the input device adjusts the gear to make a coarse adjustment to the stimulation parameter; the electronic device sends the stimulation parameters to the controller to perform fine adjustment on the stimulation parameters; the electrical stimulation generating circuit adjusts the magnitude of the stimulation current to realize the adjustment of the stimulation intensity.

Optionally, the electrical stimulation generating circuit comprises an energy storage circuit, a switching control circuit and a negative electrode connecting circuit; the energy storage circuit is used for generating and storing induction high voltage according to the control signal output by the main controller; the switch circuit is used for outputting the adjustable stimulation current to the electrode structure according to the induction high voltage; the switch control circuit is used for controlling the pulse width and the period of the stimulation current output by the switch circuit; the negative electrode connecting circuit is used for providing a power supply voltage to the negative electrode of the electrode structure.

Optionally, the tank circuit includes an inductor, a first resistor, a second resistor, a first transistor, a first diode, and a first capacitor; the inductor is used for generating the induction high voltage when the first transistor is rapidly switched on and switched off; one end of the inductor is electrically connected with the main controller, and the other end of the inductor is electrically connected with the switch circuit through the first diode; the first diode is used for storing the induction high voltage; the anode of the first diode is electrically connected with the inductor, and the cathode of the first diode is electrically connected with the switch circuit; the first resistor and the second resistor are divider resistors and are used for protecting the control end of the first transistor; one end of the first resistor is electrically connected with the main controller, and the other end of the first resistor is electrically connected with the control end of the first transistor; one end of the second resistor is electrically connected with the control end of the first transistor, and the other end of the second resistor is grounded; the first transistor is used for realizing rapid on-off according to the control signal; the control end of the first transistor is electrically connected with the main controller through the first resistor, the first connection end of the first transistor is electrically connected with the anode of the first diode, and the second connection end of the first transistor is grounded; one end of the first capacitor is electrically connected with the cathode of the first diode, and the other end of the first capacitor is grounded.

Optionally, the switch circuit includes a third resistor, a fourth resistor, a second diode, a second transistor, a fifth resistor, a second capacitor, and a third capacitor; one end of the third resistor is electrically connected with the cathode of the first diode, and the other end of the third resistor is electrically connected with the control end of the second transistor; the cathode of the second diode is electrically connected with the cathode of the first diode, and the anode of the second diode is electrically connected with the control end of the second transistor; the second transistor is used for controlling the output of the stimulation current; the control end of the second transistor is electrically connected with the switch control circuit, the first connecting end of the second transistor is electrically connected with the positive electrode in the electrode structure through the second capacitor, and the second connecting end of the second transistor is electrically connected with the cathode of the first diode through a fourth resistor; one end of the fifth resistor is electrically connected with the first connecting end of the second transistor, and the other end of the fifth resistor is grounded; one end of the third capacitor is electrically connected between the second capacitor and the positive electrode, and the other end of the third capacitor is grounded.

Optionally, the third resistor is an adjustable resistor for adjusting the magnitude of the stimulation current to realize the adjustment of the stimulation intensity.

Optionally, the switch control circuit includes a sixth resistor, a seventh resistor, a third transistor, and a fourth capacitor; the sixth resistor and the seventh resistor are connected in series between the main controller and the second connection terminal of the third transistor; the control end of the third transistor is electrically connected with the main controller, and the first connection end of the third transistor is electrically connected with the control end of the second transistor; one end of the fourth capacitor is electrically connected with the control end of the third transistor, and the other end of the fourth capacitor is grounded.

Optionally, the electrical stimulation generation circuit further comprises a negative electrode connection circuit; the negative electrode connecting circuit is used for providing a power supply voltage to the negative electrode of the electrode structure.

Optionally, the negative electrode connection circuit comprises an eighth resistor and a ninth resistor; one end of the eighth resistor is electrically connected with the main controller, and the other end of the eighth resistor is electrically connected with the negative electrode of the electrode structure; one end of the ninth resistor is electrically connected between the eighth resistor and the negative electrode, and the other end of the ninth resistor is grounded.

Optionally, one of the plurality of gears is used as a default gear; the wearable neuromuscular electrical stimulator is switchable between an on state and an off state under control of the input device; when the off state is switched to the on state, the wearable neuromuscular electrical stimulator generates the stimulation current according to the stimulation parameters corresponding to the default gear.

A wearable neuromuscular electrical stimulator system comprises a wearable neuromuscular electrical stimulator attached to a living body and an electronic device; the wearable neuromuscular electrical stimulator is used for generating stimulation energy according to the stimulation current; the wearable neuromuscular electrical stimulator includes:

wherein the wearable neuromuscular electrical stimulator includes a plurality of gears; each of the gears corresponds to a different one of the stimulation parameters; the input device adjusting the gear to make a coarse adjustment to the stimulation parameter; the electronic device sends the stimulation parameters to the controller to perform fine adjustment on the stimulation parameters; the electrical stimulation generation current adjusts the magnitude of the stimulation current to achieve the adjustment of stimulation intensity.

According to the wearable neuromuscular electrical stimulator and the system thereof, the electrical stimulation generating circuit is used for adjusting the stimulation current, the input device is used for switching preset gears, the communication device is used for receiving the stimulation parameters sent by the electronic device, so that the stimulation parameters are accurately adjusted, the wireless fine regulation and control of the neuromuscular electrical stimulator are realized, and the optimal curative effect is achieved.

Drawings

Fig. 1 is a perspective view of a wearable neuromuscular electrical stimulator system according to a preferred embodiment of the present invention.

Fig. 2 is a schematic block diagram of the wearable neuromuscular electrical stimulator in fig. 1.

Fig. 3 is a circuit schematic diagram of the electrical stimulation generation circuit of fig. 2.

Description of the main elements

Wearable neuromuscular electrical stimulator system 1

Wearable neuromuscular electrical stimulator 100

Living body 200

Electronic device 300

Power supply 10

Communication device 20

Memory 30

Main controller 40

Audio output device 50

Display device 60

Input device 70

Touch panel 71

Other input devices 72

Electrical stimulation generating circuit 80

Energy storage circuit 81

Switch circuit 83

Switch control circuit 85

Negative electrode connection circuit 87

Electrode structure 90

Positive electrode 91

Negative electrode 92

Inductor L

First diode D1

First resistor R1

Second resistor R2

First transistor Q1

First capacitor C1

Third resistor R3

Fourth resistor R4

Second transistor Q2

Fifth resistor R5

Second capacitance C2

Third capacitor C3

Sixth resistor R6

Seventh resistor R7

Third transistor Q3

Fourth capacitance C4

Eighth resistor R8

Ninth resistor R9

The following detailed description will further illustrate the utility model in conjunction with the above-described figures.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "connected" is to be interpreted broadly, e.g. as a fixed connection, a detachable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other suitable relationship. To those of ordinary skill in the art, the above terms may be immediately defined in the present invention according to their specific meanings.

The terms "first", "second", and "third" etc. in the description of the utility model and the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "comprises" and any variations thereof, are intended to cover non-exclusive inclusions.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

The following describes a specific embodiment of the wearable neuromuscular electrical stimulator system according to the present invention with reference to the accompanying drawings.

Please refer to fig. 1, which is a perspective view of a wearable neuromuscular electrical stimulator system 1 according to a preferred embodiment of the present invention. The wearable neuromuscular electrical stimulator system 1 includes a wearable neuromuscular electrical stimulator 100 attached to a living body 200 and an electronic device 300 communicating with the wearable neuromuscular electrical stimulator 100. In at least one embodiment of the present invention, the electronic device 300 may be a Personal computer, a tablet computer, a smart phone, a Personal Digital Assistant (PDA), an intelligent wearable device, and the like, but is not limited thereto.

Please refer to fig. 2, which is a block diagram of the wearable neuromuscular electrical stimulator 100. The wearable neuromuscular electrical stimulator 100 is configured to generate a stimulation current according to the stimulation parameters to achieve stimulation of the living body 200. Wherein the stimulation parameters include an on-time length and a pulse width and period of the stimulation current. The wearable neuromuscular electrical stimulator 100 includes a power supply 10, a communication device 20, a memory 30, a master controller 40, an audio output device 50, a display device 60, an input device 70, an electrical stimulus generation circuit 80, and an electrode structure 90.

The power supply 10 is used to power various components, and the power supply 10 may include a battery and a power control board. The power control board is used for controlling the functions of battery charging, battery discharging, power consumption management and the like. Alternatively, the power source 10 may be electrically connected to the communication device 20, the memory 30, the main controller 40, the audio output device 50, the display device 60, the input device 70 and the electrical stimulation generation circuit 80, respectively, it should be noted that each of the components may be connected to a different power source 10, or powered by the same power source 10.

The communication device 20 is used for data interaction with the electronic device 300. The communication device 20 includes, for example, a WiFi module, a 4G module, a 5G module, a bluetooth module, an infrared module, and the like. The communication device 20 can receive the stimulation parameters sent by the electronic device 300 and send them to the main controller 40.

The memory 30 is used to store software programs and various data. The memory 30 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system program, a control program, an application program (such as a text editor), and the like; the data storage area may store data generated by the wearable neuromuscular electrical stimulator 100 in use, and the like. In addition, the memory 30 may include high speed random access memory, and may also include non-volatile memory, such as disk memory, flash memory, or other volatile solid state memory.

The master controller 40 is the control center of the wearable neuromuscular electrical stimulator 100. The main controller 40 is connected to the various components of the wearable neuromuscular electrical stimulator 100, and performs overall control of the wearable neuromuscular electrical stimulator 100 by running or executing the software program stored in the memory 30 and invoking data in the memory 30. The main controller 40 regulates and controls the stimulation current generated by the electrical stimulation generating circuit 80, records the configuration information of the stimulation parameters, and performs data interaction with the electronic device 300.

The audio output device 50 may convert audio data received by the communication device 20 or stored in the memory 30 into an audio signal and output as sound. The audio output device 50 may include a speaker, a buzzer, and the like.

The display device 60 is used to display information input by the user or information provided to the user. The Display device 60 may include a Display panel or an indicator Light, wherein the Display panel may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The input device 70 may be used to receive entered numeric or character information. In particular, the user input device 70 may include a touch panel 71. The touch panel 71, also referred to as a touch screen, may collect a touch operation of a user (e.g., an operation of the user on the touch panel 71 or near the touch panel 71 using a palm, a finger, or a suitable accessory), and drive a corresponding connection device according to a preset program. The touch panel 71 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation, and transmits the signal to the touch controller. The touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the main controller 40, and can receive and execute commands sent by the main controller 40. In addition to the touch panel 71, the user input device 70 may include other input devices 72. In particular, the other input devices 72 may include, but are not limited to, one or more of physical keys, remote control handles, and the like, which are not limited herein. For example, the other input device 72 may include a plurality of physical keys, such as, but not limited to, an on/off key, an add key, and a drop key. By pressing the on/off key, the wearable neuromuscular electrical stimulator 100 can be switched between an on state and an off state. By pressing the increase key or the decrease key, the wearable neuromuscular electrical stimulator 100 performs a gear adjustment to achieve a coarse adjustment of the stimulation parameters. In other words, the gear is changed by pressing the increase key or the decrease key, so that the stimulation parameter is switched between different specified values. Wherein the wearable neuromuscular electrical stimulator 100 includes a plurality of gears. Each of the gears corresponds to a different one of the stimulation parameters. One of the plurality of gears serves as a default gear for the wearable neuromuscular electrical stimulator 100 to sample the stimulation parameter corresponding to the default gear to generate the stimulation current when switching from the off-state to the on-state. The stimulation parameters corresponding to different gears may be all different or may be partially different. In the activated state, the wearable neuromuscular electrical stimulator 100 generates the stimulation current with the stimulation parameters corresponding to the default gear.

Further, the touch panel 71 can cover the display device 60, and when the touch panel 71 detects a touch operation on or near the touch panel, the touch panel is transmitted to the main controller 40 to determine the type of the touch event, and then the main controller 40 provides a corresponding visual output on the display device 60 according to the type of the touch event. Although in fig. 1, the touch panel 71 and the display device 60 are two independent components to implement input and output functions, respectively, in some embodiments, the touch panel 71 and the display device 60 may be integrated to implement input and output functions, which is not limited herein.

Please refer to fig. 3, which is a circuit diagram of the electrical stimulation generating circuit 80. The electrical stimulation generating circuit 80 is configured to output the stimulation current to the electrode structure 90 under the control of the main controller 40. Wherein the stimulation current is a periodic signal. The electrical stimulation generation circuit 80 includes a tank circuit 81, a switch circuit 83, a switch control circuit 85, and a negative electrode connection circuit 87.

The tank circuit 81 is electrically connected between the main controller 40 and the switch circuit 83. The tank circuit 81 is used for generating and storing an induced high voltage according to the control signal output by the main controller 40. The energy storage circuit 81 includes an inductor L, a first resistor R1, a second resistor R2, a first transistor Q1, a first diode D1, and a first capacitor C1. The inductor L is used for generating the induced high voltage when the first transistor Q1 is rapidly switched on and off. One end of the inductor L is electrically connected to the main controller 40, and the other end of the inductor L is electrically connected to the switch circuit 83 through the first diode D1. The first diode D1 is used to store the induced high voltage. The anode of the first diode D1 is electrically connected to the inductor L, and the cathode of the first diode D1 is electrically connected to the switch circuit 83. The first resistor R1 and the second resistor R2 are voltage dividing resistors for protecting the control end of the first transistor Q1. One end of the first resistor R1 is electrically connected to the main controller 40, and the other end of the first resistor R1 is electrically connected to the control end of the first transistor Q1. One end of the second resistor R2 is electrically connected to the control end of the first transistor Q1, and the other end of the second resistor R2 is grounded. The first transistor Q1 is used for realizing rapid on-off according to the control signal. The control end of the first transistor Q1 is electrically connected to the main controller 40 through the first resistor R1, the first connection end of the first transistor Q1 is electrically connected to the anode of the first diode D1, and the second connection end of the first transistor Q1 is grounded. One end of the first capacitor C1 is electrically connected to the cathode of the first diode D1, and the other end of the first capacitor C1 is grounded. In at least one embodiment of the present invention, the first transistor Q1 is an NPN transistor, the control terminal is a base, the first connection terminal is a collector, and the second connection terminal is an emitter.

The switching circuit 83 is electrically connected between the tank circuit 81 and the electrode structure 90. The switch circuit 83 is configured to output the adjustable stimulation current to the electrode structure 90 according to the induced high voltage. The switch circuit 83 includes a third resistor R3, a fourth resistor R4, a second diode D2, a second transistor Q2, a fifth resistor R5, a second capacitor C2, and a third capacitor C3. The third resistor R3 is an adjustable resistor for adjusting the stimulation current to adjust the stimulation intensity. One end of the third resistor R3 is electrically connected to the cathode of the first diode D1, and the other end of the third resistor R3 is electrically connected to the control end of the second transistor Q2. The cathode of the second diode D2 is electrically connected to the cathode of the first diode D1, and the anode of the second diode D2 is electrically connected to the control terminal of the second transistor Q2. The second transistor Q2 is used to control the output of the stimulation current. The control end of the second transistor Q2 is electrically connected to the switch control circuit 85, the first connection end of the second transistor Q2 is electrically connected to the positive electrode 91 of the electrode structure 90 through the second capacitor C2, and the second connection end of the second transistor Q2 is electrically connected to the cathode of the first diode D1 through the fourth resistor R4. One end of the fifth resistor R5 is electrically connected to the first connection terminal of the second transistor Q2, and the other end of the fifth resistor R5 is grounded. One end of the third capacitor C3 is electrically connected between the second capacitor C2 and the positive electrode 91, and the other end of the third capacitor C3 is grounded. In at least one embodiment of the present invention, the second transistor Q2 is a PNP type triode, the control terminal is a base, the first connection terminal is a collector, and the second connection terminal is an emitter.

The switch control circuit 85 is electrically connected to the main controller 40, the switch circuit 83, and the negative electrode 92 of the electrode structure 90. The switch control circuit 85 is used for controlling the pulse width and the period of the stimulation current output by the switch circuit 83. The switch control circuit 85 includes a sixth resistor R6, a seventh resistor R7, a third transistor Q3, and a fourth capacitor C4. The sixth resistor R6 and the seventh resistor R7 are connected in series between the main controller 40 and the second connection terminal of the third transistor Q3. A control end of the third transistor Q3 is electrically connected to the main controller 40, and a first connection end of the third transistor Q3 is electrically connected to a control end of the second transistor Q2. One end of the fourth capacitor C4 is electrically connected to the control end of the third transistor Q3, and the other end of the fourth capacitor C4 is grounded. In at least one embodiment of the present invention, the third transistor Q3 is an NPN type triode, the control terminal is a base, the first connection terminal is a collector, and the second connection terminal is an emitter.

The negative electrode connection circuit 87 is electrically connected between the main controller 40 and the negative electrode 92. The negative electrode connection circuit 87 is used to supply a supply voltage to the negative electrode 92. The negative electrode connection circuit 87 includes an eighth resistor R8 and a ninth resistor R9. One end of the eighth resistor R8 is electrically connected to the main controller 40, and the other end of the eighth resistor R8 is electrically connected to the negative electrode 92. One end of the ninth resistor R9 is electrically connected between the eighth resistor R8 and the negative electrode 92, and the other end of the ninth resistor R9 is grounded.

The electrode structure 90 is attached to the living body 200. The electrode structure 90 is used to generate electrical stimulation energy in accordance with the stimulation current. The electrode structure 90 includes the positive electrode 91 and the negative electrode 92.

Specifically, the wearable neuromuscular electrical stimulator 100 operates on the following principle:

by pressing the further input device 72 the wearable neuromuscular electrical stimulator 100 is caused to switch from the off state to the on state. When switching to the activation state, the wearable neuromuscular electrical stimulator 100 generates the stimulation current according to the stimulation parameter corresponding to the default gear. In other embodiments, the wearable neuromuscular electrical stimulator 100 may also obtain the latest stimulation parameter from the memory 30 as a default stimulation parameter. The latest stimulation parameter may be the stimulation parameter when the wearable neuromuscular electrical stimulator 100 was in the last activation state.

The doctor can observe the stimulation effect corresponding to the current stimulation parameter through means such as ultrasound, when the stimulation effect does not reach the expected effect, the adjustment of the stimulation parameter in different modes is realized through the other input devices 72, the electronic device 300 and the electrical stimulation generating circuit 80, and when the stimulation effect reaches the expected effect, the electronic device 300 records and locks the current stimulation parameter. Meanwhile, the wearable neuromuscular electrical stimulator 100 automatically switches to the off state after operating for the working time period under the current stimulation parameters.

When the stimulation parameters are adjusted through the other input device 72, the main controller 40 controls the on-time of the second transistor Q2 by controlling the level of the second connection terminal of the third transistor Q3, so as to adjust the pulse width and the period of the stimulation current. The main controller 40 can adjust the stimulation current through the input device 70. The main controller 40 performs gear adjustment on the stimulation parameters according to the input of the other input device 72. For example, the user presses the add button to make the main controller 40 adjust the stimulation parameter from the current gear to the next gear, and the stimulation parameter of the next gear is larger than the stimulation parameter of the current gear. When the user presses the reduction button, the main controller 40 adjusts the stimulation parameter from the current gear to the previous gear, and the stimulation parameter of the previous gear is smaller than the stimulation parameter of the current gear.

When the stimulation parameters are adjusted by the electronic device 300, the main controller 40 can also perform precise adjustment on the stimulation parameters according to the input of the electronic device 300. That is, the stimulation parameters input by the electronic device 300 are completely or partially different from the stimulation parameters corresponding to the plurality of gears. The main controller 40 receives the stimulation parameter set by the electronic device 300 through the communication device 20, adjusts the level of the second connection terminal of the third transistor Q3 according to the received stimulation parameter, and can set the stimulation parameter to a value other than the gear, so as to realize wireless fine control of the wearable neuromuscular electrical stimulator 100. In at least one embodiment of the present invention, the stimulation parameters sent by the electronic device 300 may be completely different from the stimulation parameters corresponding to the gear positions, or may be partially the same.

When the stimulation parameter is adjusted by the electrical stimulation generation circuit 80, the wearable neuromuscular electrical stimulator 100 can also adjust the stimulation parameter by adjusting the resistance of the third resistor R3, so as to adjust the magnitude of the stimulation current, and thus adjust the stimulation intensity.

The wearable neuromuscular electrical stimulator 100 realizes the intensity adjustment of the stimulation current by adjusting the third resistor in the switch control circuit 85, realizes the switching of preset gears by the input device 70, and realizes the accurate adjustment of the stimulation parameters by receiving the stimulation parameters sent by the electronic device 300 by the communication device 20, thereby realizing the wireless fine control of the wearable neuromuscular electrical stimulator 100 and achieving the best curative effect.

It will be appreciated by those skilled in the art that the above embodiments are illustrative only and not intended to be limiting, and that suitable modifications and variations may be made to the above embodiments without departing from the true spirit and scope of the utility model.

Claims

1. A wearable neuromuscular electrical stimulator is attached to a living body; the wearable neuromuscular electrical stimulator is used for generating stimulation energy according to the stimulation current; the method is characterized in that: the wearable neuromuscular electrical stimulator includes:

wherein the wearable neuromuscular electrical stimulator includes a plurality of gears; each of the gears corresponds to a different one of the stimulation parameters; the input device adjusts the gear to make a coarse adjustment to the stimulation parameter; the electronic device sends the stimulation parameters to the controller to perform fine adjustment on the stimulation parameters; the electrical stimulation generation current adjusts the magnitude of the stimulation current to achieve the adjustment of stimulation intensity.

2. The wearable neuromuscular electrical stimulator of claim 1, wherein the electrical stimulus generation circuit comprises a tank circuit, a switch circuit, and a switch control circuit; the energy storage circuit is used for generating and storing induction high voltage according to the control signal output by the main controller; the switch circuit is used for outputting the adjustable stimulation current to the electrode structure according to the induction high voltage; the switch control circuit is used for controlling the pulse width and the period of the stimulation current output by the switch circuit.

3. The wearable neuromuscular electrical stimulator of claim 2, wherein the tank circuit comprises an inductor, a first resistor, a second resistor, a first transistor, a first diode, and a first capacitor; the inductor is used for generating the induction high voltage when the first transistor is rapidly switched on and switched off; one end of the inductor is electrically connected with the main controller, and the other end of the inductor is electrically connected with the switch circuit through the first diode; the first diode is used for storing the induction high voltage; the anode of the first diode is electrically connected with the inductor, and the cathode of the first diode is electrically connected with the switch circuit; the first resistor and the second resistor are divider resistors and are used for protecting the control end of the first transistor; one end of the first resistor is electrically connected with the main controller, and the other end of the first resistor is electrically connected with the control end of the first transistor; one end of the second resistor is electrically connected with the control end of the first transistor, and the other end of the second resistor is grounded; the first transistor is used for realizing rapid on-off according to the control signal; the control end of the first transistor is electrically connected with the main controller through the first resistor, the first connection end of the first transistor is electrically connected with the anode of the first diode, and the second connection end of the first transistor is grounded; one end of the first capacitor is electrically connected with the cathode of the first diode, and the other end of the first capacitor is grounded.

4. The wearable neuromuscular electrical stimulator of claim 3, wherein the switching circuit comprises a third resistor, a fourth resistor, a second diode, a second transistor, a fifth resistor, a second capacitor, and a third capacitor; one end of the third resistor is electrically connected with the cathode of the first diode, and the other end of the third resistor is electrically connected with the control end of the second transistor; the cathode of the second diode is electrically connected with the cathode of the first diode, and the anode of the second diode is electrically connected with the control end of the second transistor; the second transistor is used for controlling the output of the stimulation current; the control end of the second transistor is electrically connected with the switch control circuit, the first connecting end of the second transistor is electrically connected with the positive electrode in the electrode structure through the second capacitor, and the second connecting end of the second transistor is electrically connected with the cathode of the first diode through the fourth resistor; one end of the fifth resistor is electrically connected with the first connecting end of the second transistor, and the other end of the fifth resistor is grounded; one end of the third capacitor is electrically connected between the second capacitor and the positive electrode, and the other end of the third capacitor is grounded.

5. The wearable neuromuscular electrical stimulator of claim 4, wherein the third resistor is an adjustable resistor configured to adjust the magnitude of the stimulation current to achieve an adjustment in stimulation intensity.

6. The wearable neuromuscular electrical stimulator of claim 4, wherein the switch control circuit comprises a sixth resistor, a seventh resistor, a third transistor, and a fourth capacitor; the sixth resistor and the seventh resistor are connected in series between the main controller and the second connection terminal of the third transistor; the control end of the third transistor is electrically connected with the main controller, and the first connection end of the third transistor is electrically connected with the control end of the second transistor; one end of the fourth capacitor is electrically connected with the control end of the third transistor, and the other end of the fourth capacitor is grounded.

7. The wearable neuromuscular electrical stimulator of claim 2, wherein the electrical stimulus generation circuit further comprises a negative electrode connection circuit; the negative electrode connecting circuit is used for providing a power supply voltage to the negative electrode of the electrode structure.

8. The wearable neuromuscular electrical stimulator of claim 7, wherein the negative electrode connection circuit comprises an eighth resistor and a ninth resistor; one end of the eighth resistor is electrically connected with the main controller, and the other end of the eighth resistor is electrically connected with the negative electrode of the electrode structure; one end of the ninth resistor is electrically connected between the eighth resistor and the negative electrode, and the other end of the ninth resistor is grounded.

9. The wearable neuromuscular electrical stimulator of claim 1, wherein one of the plurality of gears is a default gear; the wearable neuromuscular electrical stimulator is switchable between an on state and an off state under control of the input device; when the off state is switched to the on state, the wearable neuromuscular electrical stimulator generates the stimulation current according to the stimulation parameters corresponding to the default gear.

10. A wearable neuromuscular electrical stimulator system comprises a wearable neuromuscular electrical stimulator attached to a living body and an electronic device; characterized in that the wearable neuromuscular electrical stimulator adopts the wearable neuromuscular electrical stimulator according to any one of claims 1 to 9.