WO2023108881A1

WO2023108881A1 - Sculpting magnetic stimulator

Info

Publication number: WO2023108881A1
Application number: PCT/CN2022/076282
Authority: WO
Inventors: 仇凯; 孙陈林; 郭少千; 冯天龙
Original assignee: 南京伟思医疗科技股份有限公司
Priority date: 2021-12-15
Filing date: 2022-02-15
Publication date: 2023-06-22
Also published as: CN114470523A

Abstract

A sculpting magnetic stimulator, comprising a stimulation coil (1), a muscle state monitoring module (2), and a control calculation module (3). The stimulation coil (1) is of a structure of a track-type coil (101), and is configured to send a magnetic pulse to a target muscle; the muscle state monitoring module (2) collects a muscle state value in real time under magnetic pulse stimulation; the control calculation module (3) is configured to receive the muscle state value and calculate the muscle state value into a muscle strength characteristic value, and adjust the magnetic stimulation intensity, so as to self-adaptively adjust the magnetic stimulation intensity according to the theoretical relationship between the change of the muscle strength characteristic value and the contraction state of the target muscle; and the stimulation coil (1) acts on the target muscle according to a magnetic pulse stimulation parameter updated by the control calculation module (3). The sculpting magnetic stimulator uses a calculation method for self-adaptively adjusting the magnetic stimulation intensity summarized according to clinical experiences, the costs are greatly lowered, the invention is simpler and more intuitive, and the sculping effect can be better improved.

Description

A shaping magnetic stimulator

technical field

The invention relates to the technical field of shaping magnets, in particular to a shaping magnetic stimulator that monitors the state of stimulated muscles in real time and adaptively adjusts the stimulation intensity.

Background technique

The current mainstream shaping techniques include drug therapy, electrical stimulation, and magnetic stimulation. Among them, drug therapy has attracted more and more people's vigilance because of its strong side effects, and the electrical stimulation and magnetic stimulation technologies that have emerged in recent years have been more and more respected because of their obvious and quick effects.

Compared with the electric stimulation shaping technology that is currently used more, the magnetic stimulation shaping technology has the following three advantages: 1. There is no area where the current density is very concentrated in the stimulation, so the subject has no pain; 2. Muscle, Poor conductors such as bones have no attenuation effect on the magnetic pulse entering the human body, so magnetic stimulation can reach deep tissues, especially the target part of the shaping magnetic stimulation user usually has a thick fat layer, which has a great attenuation effect on the current, and magnetic stimulation can Directly reach the target muscle through the fat layer to achieve a better shaping effect; 3. The operation of magnetic stimulation is very simple, just place the stimulation coil next to the target stimulation site, there can be various clothes in the middle, and the position of the coil is easy to change.

However, at present, there is no technical solution for real-time monitoring of the state of the stimulated muscles in the field of magnetic stimulation shaping, and it is in the stage of "blind stabbing". Whether the muscle enters the state of maximum contraction, and whether the muscle enters a state of fatigue during the treatment. Therefore, the tolerance strength during the treatment process depends on asking the user's experience or adjusting the strength to the maximum. It cannot ensure that the muscle contraction state is reached every time, and it cannot ensure that the treatment effect is maximized each time. The user may experience muscle fatigue to adjust the intensity, so after the treatment, the user will generally experience muscle soreness.

In order to solve the above problems, the present invention discloses a shaping magnetic stimulator that monitors the state of the stimulated muscles in real time and adaptively adjusts the stimulation intensity.

Contents of the invention

The purpose of the present invention is to provide a shaping magnetic stimulator. Compared with the existing self-adaptive adjustment of magnetic stimulation intensity, this invention proposes an algorithm for adaptive adjustment of magnetic stimulation intensity that does not require the use of non-analytic methods such as neural networks and deep learning. Method modeling does not require a large amount of resources to train model fitting parameters in the early stage, and the calculation method summed up by clinical experience is used, the cost is greatly reduced, it is more concise, more intuitive, and can improve the shaping effect very well.

To achieve the above object, the technical scheme of the present invention is as follows:

As disclosed in the present invention, a plastic magnetic stimulator includes a control operation module, a muscle state monitoring module connected to the input end of the control operation module, and a stimulation coil connected to the output end of the control operation module;

The stimulating coil is a racetrack coil structure, which is used to send magnetic pulses to target muscles; the muscle state monitoring module collects muscle state values in real time under magnetic pulse stimulation;

The control operation module is used to receive the muscle state value and calculate the muscle state value into a muscle strength characteristic value, and adjust the magnetic stimulation strength adaptively according to the theoretical relationship between the change of the muscle strength characteristic value and the target muscle contraction state by adjusting the magnetic stimulation intensity , the stimulation coil acts on the target muscle according to the magnetic pulse stimulation parameters updated by the control operation module.

Compared with the prior art, the beneficial effects of the present invention include:

The stimulation coil is wound on an arc-shaped track, and the corresponding stimulation surface is selected according to the needs of different body shapes and magnetic stimulation strengths to achieve better magnetic stimulation effects;

On the basis of the stimulation coil, a muscle state monitoring design is added, including but not limited to pressure signals, myoelectric signals, image signals, etc., to achieve the purpose of real-time monitoring of muscle states during magnetic stimulation;

According to the characteristic value of muscle strength during muscle contraction, it can be more intuitively evaluated whether the indicated magnetic field strength causes the maximum muscle contraction, so as to ensure the maximum effect of each treatment;

During the treatment process, it will evaluate and indicate whether the user is in a state of muscle fatigue, and at the same time, it can appropriately adjust the stimulation intensity according to the degree of muscle fatigue, so as to reduce muscle soreness and improve the treatment experience on the basis of ensuring the curative effect.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following will briefly introduce the drawings used in the description of the embodiments. Apparently, the drawings in the following description are only some embodiments of the present invention. in:

Fig. 1 is a schematic structural view of a shaping magnetic stimulator according to an embodiment of the present invention;

Fig. 2 is the functional block diagram of the shaping magnetic stimulator of the embodiment of the present invention;

Fig. 3 is a structural comparison diagram between the stimulating coil of the embodiment of the present invention and the existing circular coil;

Fig. 4 is a comparison diagram of X-axis magnetic field changes between the stimulation coil of the embodiment of the present invention and the existing circular coil;

Fig. 5 is a comparison diagram of Y-axis magnetic field changes between the stimulation coil of the embodiment of the present invention and the existing circular coil;

6 is a schematic structural diagram of a stimulating coil according to an embodiment of the present invention;

Fig. 7 is a distribution diagram of the concave magnetic field of the stimulation coil according to the embodiment of the present invention;

Fig. 8 is a distribution diagram of the convex magnetic field of the stimulation coil according to the embodiment of the present invention;

9 is a schematic diagram of magnetic field focusing in which the stimulating coil is an arc-shaped structure according to an embodiment of the present invention;

Fig. 10 is a positional relationship diagram between the muscle state monitoring module and the stimulating coil according to the embodiment of the present invention;

Fig. 11 is a working flow chart of the shaping magnetic stimulator according to the embodiment of the present invention;

Fig. 12 is a flowchart of the self-adaptive adjustment of the magnetic stimulation intensity of the shaping magnetic stimulator according to the embodiment of the present invention;

Fig. 13 is a waveform diagram of muscle strength in the process of shaping magnetic stimulation according to the embodiment of the present invention;

Fig. 14 is a diagram of muscle strength characteristic values in the process of shaping magnetic stimulation according to the embodiment of the present invention;

In the figure, 1-stimulation coil; 101-racetrack coil, 102-hollow racetrack coil, 103-circular coil; 2-muscle status monitoring module; 3-control calculation module; 4-visualization terminal; 5-target muscle.

Detailed ways

The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 1 and Figure 2, the embodiment of the present invention discloses a shaping magnetic stimulator, including a muscle state monitoring module 2, a control operation module 3, a communication module, a visualization terminal 4 and a stimulation coil 1; wherein the stimulation coil 1 It is a track type winding, and the muscle state monitoring module 2 is used to collect the muscle state value under the magnetic stimulation state in real time; The state value is converted into a muscle strength characteristic value, and the magnetic stimulation strength is adaptively adjusted according to the theoretical relationship between the change of the muscle strength characteristic value and the contraction state of the target muscle by adjusting the magnetic stimulation intensity; the output terminal of the control operation module 3 is connected to the stimulation coil 1 , the stimulation coil 1 acts on the target muscle according to the electromagnetic wave stimulation parameters sent by the control operation module 3 .

3 to 5 show the structure diagrams and magnetic field distribution of the existing circular coil 103, the racetrack coil 101 and the hollow racetrack coil 102 in the embodiment of the present invention, and the specific structures of the hollow racetrack coil 102 and the racetrack coil 101 The difference is that the coils are only wound along both sides of the runway. The magnetic field changes from -140mm to +140mm in the X-axis direction and Y-axis direction at a height of 2cm show that the magnetic field distribution of the circular coil 103 is sharp and narrow, the magnetic field distribution of the racetrack coil 101 is flat and wide, and the magnetic field distribution of the hollow racetrack coil 102 is compared The racetrack coil is slightly narrower, but has a wider magnetic field distribution than the conventional circular coil 103 . Therefore, both the structural design of the racetrack coil 101 and the hollow racetrack coil 102 can achieve wider magnetic field distribution.

As shown in Figures 6 to 8, the same magnetic field for different body types stimulates too much for thin people, and too small for fat people. In order to adapt to users of different body types, the present invention further designs the stimulation coil 1 wound on the track into an arc structure, and the magnetic stimulation intensity and magnetic field distribution of the front and back stimulation surfaces are different. The arc-shaped track-shaped coil or the hollow track-shaped coil has a wide concave stimulation surface and a wide and wide magnetic field distribution, as shown in the darker areas on both sides of Figure 7, which are mainly concentrated at the two ends of the stimulation coil; while the convex surface stimulation Narrow surface, as shown in the middle area of Figure 8, is mainly concentrated in the middle of the stimulating coil, with high magnetic field strength and a magnetic gathering effect.

In practical application, when the rectus abdominis is separated due to childbirth or other reasons, when the concave stimulation surface is used for stimulation, there is no muscle located at the white line of the abdomen, so there is no need for magnetic stimulation, and the magnetic field is mainly concentrated on the abdominal white Muscles on both sides of the thread for better therapeutic effect. Therefore, the arc-shaped track-shaped coil or the arc-shaped hollow track-shaped coil can choose to use the convex or concave surface of the stimulating coil to act on the target muscle according to the user's demand for magnetic stimulation intensity and user's body shape, so as to ensure better magnetic stimulation effect.

As shown in Figure 9, the magnetic field distribution on both sides of the planar coil is the same, but when the planar coil is pressed into an arc shape, the magnetic field distribution on the concave surface changes, according to Maxwell's equation

Γ is the boundary of the surface Ω, J is the conduction current density vector,

It is the displacement current density (A/m2), and D is the electric flux density (C/m2). It is the same as the right side of the coil equation, and the dL on the left side will decrease and H will become larger. For the coil edge, the distance from B to the stimulation point is greater than that of the coil Refer to A for the edge, which further confirms that the concave surface of the stimulation coil with the arc structure has a magnetic concentration effect.

In one embodiment, the inner diameter of the racetrack coil 101 or the hollow racetrack coil 102 is 30*50-80*100 mm, the outer diameter is 80*100-200*220 mm, and the number of turns of the coil is specifically customized according to the performance index. It is made of braided copper wires, and the copper wires are potted and bonded with epoxy resin. On the basis of the track-shaped coil 101 or the hollow track-shaped coil 102, radian processing is performed to form two stimulation surfaces with different magnetic stimulation intensities, the concave stimulation surface and the convex stimulation surface, which can meet the magnetic stimulation needs of people of different body types.

To further illustrate, the muscle state monitoring module 2 is used to collect the contraction state of the magnetically stimulated target muscle 5 in real time. The collected signal can be a skin surface electromyographic signal, or a pressure signal collected using a pressure sensor and a fluid device, or based on a mechanical wave (frequency at 10 Hz). ~1010Hz) or electromagnetic waves (frequency between 10Hz ~ 1020Hz) collected skin surface image signals, so as to achieve the purpose of real-time monitoring of the target muscle state.

In one embodiment, as shown in FIG. 10, the muscle state monitoring module 2 includes a fluid structure and a pressure sensor installed in the fluid structure. The fluid structure is installed on the positive and negative stimulation surfaces of the stimulation coil 1, such as an air bag mechanism. Filled with gas or liquid, when the stimulation coil 1 magnetically stimulates the target muscle, the pressure sensor collects the pressure signal of the gas or liquid change caused by the deformation of the target muscle when it is magnetically stimulated, which is the muscle state value or muscle strength value.

Alternatively, the muscle state monitoring module 2 can also be a collection electrode affixed to the corresponding part of the target muscle 5. When the stimulation coil 1 magnetically stimulates the target muscle, the current is transmitted to the target muscle through the neural pathway, and the target muscle 5 can generate an action to collect the data on the skin surface. EMG signal. Based on the conversion of the collected EMG signals into muscle strength characteristic values, the intensity of magnetic stimulation is adaptively adjusted by adjusting the intensity of magnetic stimulation and the changes in the characteristic values of muscle strength.

Alternatively, the muscle state monitoring module 2 can also use infrared sensors, laser sensors or ultrasonic sensors to collect image signals of deformation of the target muscle, such as ultrasonic imaging, visible light imaging, infrared, microwave imaging, X-ray imaging, X-CT imaging, magnetic imaging, etc. Resonance imaging, nuclide imaging, molecular imaging, etc. Similarly, image signals are converted into muscle strength feature values.

The control operation module 3 includes a signal processing unit and a single-chip microcomputer. The signal processing unit is used to process the signal collected by the muscle state monitoring module 2, eliminate noise and interference in the signal, and convert the myoelectric signal or pressure signal or image signal into a single-chip microcomputer. Process and identify the characteristic value of muscle strength; the single-chip microcomputer receives, stores, and processes the characteristic value of muscle strength, realizes the adaptive adjustment algorithm of strength, calculates the real-time optimal stimulation intensity according to the characteristic value of muscle strength, and transmits the magnetic stimulation parameters and user status to the Visual terminal 4; MCU has been realized but not limited to STM32, GD32.

According to the EMG characteristic value during muscle contraction, it can be more intuitively evaluated whether the indicated magnetic field strength causes the maximum muscle contraction, so as to ensure the maximum effect of each treatment. The muscle strength characteristic value of the present invention is the average value, median, average amplitude value, integrated myoelectric value, root mean square average power frequency value, median frequency value, signal rise or fall of all muscle state values in the pulse duration It is calculated by one or more combinations of the ratio of the zero line and the synergistic shrinkage rate. Usually, the characteristic value of muscle strength is the average value of all muscle state values within the duration of the magnetic pulse, that is, the average value of the muscle strength value, or a combined operation of the average value and the median value or the average amplitude value or other values.

The communication module is used to connect the single-chip microcomputer, the visualization terminal 4 and the stimulation coil 1 . Wired (including but not limited to STD and CAMAC bus, ISA bus, VXI bus, PCI, Compact and PXI bus, RS-232C, RS-422A, RS-485, USB, IEEE-1943, IEEE488, SCSI bus, MXI bus) and wireless (including but not limited to custom protocol, IEEE802.15.4 protocol, ZigBee protocol, Bluetooth protocol, LoRa and UWB communication methods) connection.

The visualization terminal 4 is used to graphically display real-time muscle strength curves, muscle strength characteristic values during muscle contraction, magnetic stimulation parameters, and the like.

The stimulating coil 1 acts on target muscles, neuromuscular or muscle fibers according to the magnetic pulse stimulation parameters emitted by the single chip microcomputer, so as to achieve a shaping effect. The stimulation coil 1 stimulates the magnetic pulse stimulation on the target muscles of the human body, including parameters such as magnetic stimulation frequency, intensity, pulse number, interval, and duration.

However, during the shaping process, if the magnetic stimulation intensity is too low, the target muscle group cannot achieve maximum contraction, and a good shaping effect cannot be achieved; if the magnetic stimulation intensity is too high, causing the user to enter a state of fatigue, pain may occur, and even Muscle cramps. Therefore, automatically finding the most suitable magnetic stimulation intensity for the user is crucial to improve the therapeutic effect and enhance the experience.

In order to solve this problem, as an embodiment of the present invention, the muscle strength characteristic value P(t) under the magnetic stimulation state is collected in real time, the magnetic stimulation intensity is adjusted, and the theoretical relationship between the muscle strength characteristic value and the muscle contraction state is automatically obtained according to the clinical experiment. Adapt to adjust the stimulation intensity, so that the user can receive the most suitable magnetic stimulation intensity for the current muscle strength at every moment, and improve the therapeutic effect.

Specifically, as shown in Figure 11 to Figure 12, the specific method for realizing the real-time monitoring of the stimulated muscle state and adaptive adjustment of the stimulation intensity by the shaping magnetic stimulator is as follows:

Record the muscle strength characteristic value of the target muscle at time t; the user enters the shaping stage, and according to the shaping plan (Treatment_No), the shaping magnetic stimulator emits corresponding electromagnetic waves, including frequency (Treatment_No_Freq), intensity (Treatment_No_Stren(t)), Pulse number (Treatment_No_Cycle), interval (Treatment_No_Gap), duration (Treatment_No_Dura).

Based on the collected muscle state value, that is, the muscle strength value, the muscle strength characteristic value P_Eig(k) of each treatment pulse is calculated. After experiments and comparisons, the present invention uses an average value index with better complexity and effect, that is, the muscle strength characteristic value P_Eig(k) is the average value of all muscle strength values in the unit pulse duration, and is based on clinical experiment muscle strength characteristics. The theoretical relationship between the value and the state of muscle contraction adaptively adjusts the stimulus intensity.

If the magnetic stimulation intensity is increased and P_Eig(k) continues to increase, it is considered that the muscle has not reached the maximum contraction state, and the magnetic stimulation intensity at the next moment is increased as follows:

Treatment_No_Stren(t+1)=Treatment_No_Stren(t)*(1+Stren_Tune)

Among them, Stren_Tune is a fine-tuning coefficient, and the value interval is: [0,1], and the value is usually 5%.

If the magnetic stimulation intensity is increased and P_Eig(k) remains basically unchanged, it is considered that the muscle has reached the maximum contraction state, and the previous magnetic stimulation intensity is taken as the optimal magnetic stimulation intensity:

If the magnetic stimulation intensity remains unchanged during the stimulation process and P_Eig(k) decreases, it is considered that the muscle has entered a state of fatigue, and the magnetic stimulation intensity at the next moment is reduced as follows:

Treatment_No_Stren(t+1)=Treatment_No_Stren(t)*(1-Stren_Tune)

Among them, Stren_Tune is a fine-tuning coefficient, the value range is: [0,1], and the value is usually 5%-10%.

Figures 13 to 14 further illustrate the relationship between the variation of the stimulation intensity and the characteristic value of muscle strength during the shaping process.

In the stage from 0s to 100s, the user is in the state of spontaneous breathing, without receiving magnetic stimulation, and the muscle power map shows the state value of the user's muscle strength when breathing.

In the period from 100s to 440s, with the increase of the magnetic stimulation intensity, the user's muscle strength state value and muscle strength characteristic value are in a state of steady increase, and the magnetic stimulation intensity at the next moment is moderately increased on the basis of the magnetic stimulation intensity at the previous moment Magnetic stimulus strength.

After 450s, when the magnetic stimulation intensity remains unchanged, the user's muscle strength state value and muscle strength characteristic value decrease, indicating that the target muscle is fatigued, and the magnetic stimulation intensity at the next moment is the same as the previous magnetic stimulation Moderately reduce the stimulation intensity on the basis of the intensity, so that the target muscle is still in the best stimulation state. While ensuring the stimulation intensity, reduce the fatigue of the target muscles, accelerate the recovery after stimulation, and improve the shaping effect.

During the entire shaping process, the muscle state value during the muscle contraction process is collected in real time, and converted into the corresponding muscle strength characteristic value, and the degree of muscle contraction during the stimulation process is determined according to the change of the muscle strength characteristic value during the muscle contraction process, which can be more accurate. Intuitively assess whether the intensity of the indicated magnetic field causes the maximum muscle contraction or has entered a state of fatigue, so as to adjust the stimulation intensity adaptively. This process is a process of continuous monitoring and adjustment during the treatment process to ensure the maximum effect of each treatment. Compared with the existing adaptive adjustment stimulation intensity technology, the self-adaptive adjustment algorithm proposed in the present invention does not need to use non-analytic methods such as neural network and deep learning to model, does not need to spend a lot of resources in the early stage to train model fitting parameters, and adopts clinical The calculation method summed up by experience has greatly reduced the cost, is more concise, more intuitive, and can improve the shaping effect very well.

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. , Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall fall within the protection scope of the present invention.

Claims

A shaping magnetic stimulator, characterized in that it includes a control operation module, a muscle state monitoring module connected to the input end of the control operation module, and a stimulation coil connected to the output end of the control operation module;

The stimulating coil is a racetrack coil structure, which is used to send magnetic pulses to target muscles; the muscle state monitoring module collects muscle state values in real time under magnetic pulse stimulation;

The control operation module is used to receive the muscle state value and convert it into a muscle strength characteristic value. By adjusting the magnetic stimulation intensity, the magnetic stimulation intensity is adaptively adjusted according to the theoretical relationship between the change of the muscle strength characteristic value and the contraction state of the target muscle. The updated magnetic pulse stimulation parameters of the control operation module act on the target muscle.
The shaping magnetic stimulator according to claim 1, wherein the muscle state value is a pressure signal caused by target muscle deformation, a skin surface electromyographic signal, or a skin image signal collected based on mechanical waves or electromagnetic waves.
The shaping magnetic stimulator according to claim 2, wherein the muscle state monitoring module includes a fluid structure and a pressure sensor installed in the fluid structure, and the fluid structure is installed in the positive and negative stimulation coils of the stimulation coil. On the surface, the pressure sensor is used to collect the pressure signal of the fluid change caused by the deformation of the target muscle when it is stimulated.
The shaping magnetic stimulator according to claim 2, wherein the muscle state monitoring module includes electrodes for collecting surface electromyographic signals of target muscles.
According to the shaping magnetic stimulator according to any one of claims 1-4, it is characterized in that the control operation module includes a signal processing unit and a single-chip microcomputer, and the signal processing unit is used to process the muscle state value, and the muscle state The value is converted into the characteristic value of muscle strength; the magnetic stimulation intensity is adjusted, and the single-chip microcomputer judges the state of muscle contraction according to the change of the characteristic value of muscle strength, and calculates the real-time optimal stimulation intensity.
The shaping magnetic stimulator according to claim 1, wherein the stimulation coil is a hollow racetrack coil structure with coils wound on both sides of the racetrack.
The shaping magnetic stimulator according to claim 1 or 6, characterized in that the inner diameter of the stimulating coil is 30*50-80*100mm, and the outer diameter is 80*100-200*220mm.
The shaping magnetic stimulator according to claim 1 or 6, wherein the stimulating coil is arc-shaped, including a concave stimulating surface and a convex stimulating surface.
The shaping magnetic stimulator according to claim 5, wherein the muscle strength characteristic value is the average value, median value, average amplitude value, integral myoelectric value, mean value of all muscle state values within the pulse duration. The square root average power frequency value, the median frequency value, the ratio of the signal rising or falling through the zero line, and the synergistic contraction rate, the signal processing unit converts the muscle state value into muscle strength characteristics according to one of the operations or a combination of operations value.
The shaping magnetic stimulator according to claim 9, characterized in that, according to the theoretical relationship between the characteristic value of clinical muscle strength and the state of muscle contraction, the method for adaptively adjusting the intensity of magnetic stimulation is as follows:

If the magnetic stimulation intensity is increased and the muscle strength characteristic value continues to increase, it is considered that the target muscle has not reached the maximum contraction state, and the magnetic stimulation intensity at the next moment is increased as follows:

Treatment_No_Stren(t+1)=Treatment_No_Stren(t)*(1+Stren_Tune);

If the magnetic stimulation intensity is increased and the characteristic value of muscle strength is basically unchanged, it is considered that the target muscle has reached the maximum contraction state, and the stimulation intensity at the previous moment is taken as the optimal magnetic stimulation intensity:

If the intensity of magnetic stimulation remains unchanged and the characteristic value of muscle strength decreases, it is considered that the target muscle has reached a state of fatigue, and the intensity of magnetic stimulation at the next moment is reduced as follows:

Treatment_No_Stren(t+1)=Treatment_No_Stren(t)*(1-Stren_Tune);

Among them, Treatment_No_Stren(t+1) is the magnetic stimulation intensity at the next moment, Treatment_No_Stren(t) is the magnetic stimulation intensity at the previous moment, Stren_Tune is the fine-tuning coefficient, and the value range is [0,1].
The shaping magnetic stimulator according to claim 9, characterized in that, the value of the fine-tuning coefficient is 5%-10%.
The shaping magnetic stimulator according to claim 1, characterized in that it also includes a visualization terminal connected to the control operation module for real-time graphical display of real-time muscle strength curves, contraction state muscle strength characteristic values and magnetic pulse stimulation parameters .