Magnetic stimulation circuit and magnetic stimulation therapeutic apparatus

Abstract

The utility model discloses a magnetic stimulation circuit, which comprises a high-voltage power supply module, two magnetic stimulation coils, two charging and discharging circuits and a control module, the two charging and discharging circuits are connected in parallel and are respectively connected with the two magnetic stimulation coils, and each charging and discharging circuit comprises an energy storage capacitor, a sampling circuit, a charging switch and a discharging switch. An output positive electrode of the high-voltage power supply module is connected with one end of the energy storage capacitor through the charging switch, the other end of the energy storage capacitor is connected with an output negative electrode of the high-voltage power supply module, the magnetic stimulation coil is connected with the energy storage capacitor through the discharging switch, and the charging switch and the discharging switch are controlled by the high-voltage power supply module. The sampling circuit is connected between the energy storage capacitor and the high-voltage power supply module to collect the voltage of the energy storage capacitor, so that the high-voltage power supply module controls the charging switch to be switched on when the collected voltage is lower than a preset voltage and controls the discharging switch to be switched on when the collected voltage is equal to the preset voltage; the control module is connected with the high-voltage power module to control the high-voltage power module to work. The utility model also discloses a magnetic stimulation therapeutic apparatus.

Description

Technical Field

[0001] This utility model relates to the field of magnetic stimulation technology, specifically to a magnetic stimulation circuit and a magnetic stimulation therapy device. Background Technology

[0002] Transcranial magnetic stimulation (TMS) is a painless, non-invasive, and green treatment method. It is based on Faraday's law of electromagnetic induction. During the charging process of the energy storage capacitor, the thyristor rapidly discharges to the stimulation coil. The time-varying large current in the stimulation coil generates a high-intensity time-varying pulse magnetic field. The magnetic signal can penetrate the skull and stimulate the brain nerves.

[0003] Currently, transcranial magnetic stimulation (TMS) devices offer stimulation modes such as single-pulse TMS and dual-pulse TMS. Dual-pulse TMS is further divided into paired associated magnetic stimulation (ccPAS) with two magnetic stimulation coils and paired pulse magnetic stimulation (ppTMS) with one magnetic stimulation coil. Most dual-pulse paired parallel magnetic stimulation devices on the market are constructed by combining two sets of magnetic stimulation devices or by simply combining two sets internally. This results in higher costs. Furthermore, when using two sets of magnetic stimulation devices or simply combining two sets, signal communication between the two sets is required, leading to delays. It is difficult to synchronize the outputs of the two magnetic stimulation coils, making it impossible to achieve precise and synchronized treatment of the target area. Utility Model Content

[0004] This invention provides a magnetic stimulation circuit and a magnetic stimulation therapy device, aiming to solve the problems of high equipment cost and asynchronous control when the current dual-pulse transcranial magnetic stimulation mode is working.

[0005] According to one aspect of this utility model, a magnetic stimulation circuit is provided, comprising a high-voltage power supply module, two magnetic stimulation coils, two parallel charging and discharging circuits respectively connected to the two magnetic stimulation coils, and a control module, wherein...

[0006] Each of the charging and discharging circuits includes an energy storage capacitor, a sampling circuit, a charging switch, and a discharging switch. The positive output terminal of the high-voltage power supply module is connected to one end of the energy storage capacitor through the charging switch, and the other end of the energy storage capacitor is connected to the negative output terminal of the high-voltage power supply module. The magnetic stimulation coil is connected to the energy storage capacitor through the discharging switch, and the charging switch and the discharging switch are controlled by the high-voltage power supply module. The sampling circuit is connected between the energy storage capacitor and the high-voltage power supply module to collect the voltage of the energy storage capacitor, so that the high-voltage power supply module controls the charging switch to turn on when the collected voltage is lower than a predetermined voltage, and controls the discharging switch to turn on when the collected voltage is equal to the predetermined voltage.

[0007] The control module is connected to the high-voltage power supply module and is used to control the operation of the high-voltage power supply module according to external commands.

[0008] The further technical solution is as follows: the magnetic stimulation circuit also includes two connectors, each of which is connected to its energy storage capacitor through a discharge switch in the charging and discharging circuit to serve as the output terminal of the charging and discharging circuit, and each of the magnetic stimulation coils is connected to one of the connectors.

[0009] The further technical solution is that the charging switch is a MOSFET, IGBT, or thyristor.

[0010] The further technical solution is as follows: the charging and discharging circuit also includes a driving module, which is connected to the control terminals of the high-voltage power supply module, the charging switch and the discharging switch.

[0011] The further technical solution is as follows: the discharge switch is a bidirectional thyristor, the control terminal of the bidirectional thyristor is connected to the control terminal of the high-voltage power supply module, the first anode of the bidirectional thyristor is connected to one end of the magnetic stimulation coil, the second anode is connected to the energy storage capacitor, and the other end of the magnetic stimulation coil is connected to the output negative terminal of the high-voltage power supply module.

[0012] The further technical solution is as follows: the charging and discharging circuit further includes a discharging module, the discharging module includes a first resistor, a switch and an isolation circuit, the input terminal of the isolation circuit is connected to the high-voltage power supply module, its output terminal is connected to the control terminal of the switch, the input terminal of the switch is connected to the energy storage capacitor and the second anode of the bidirectional thyristor through the first resistor, and the output terminal of the switch is connected to the output negative terminal of the high-voltage power supply module and the magnetic stimulation coil.

[0013] The further technical solution is as follows: the control module includes a central processing unit and a controller. The central processing unit is connected to the controller to send signals to the controller according to external instructions, so that the controller controls the high-voltage power supply module to work.

[0014] This utility model also provides a magnetic stimulation circuit, which includes a high-voltage power supply module, a magnetic stimulation coil, two parallel charging and discharging circuits, two connectors, and a control module. The two charging and discharging circuits are respectively connected to the magnetic stimulation coil through the two connectors.

[0015] Each of the charging and discharging circuits includes an energy storage capacitor, a sampling circuit, a charging switch, and a discharging switch. The positive output terminal of the high-voltage power supply module is connected to one end of the energy storage capacitor through the charging switch, and the other end of the energy storage capacitor is connected to the negative output terminal of the high-voltage power supply module. The connector is connected to the energy storage capacitor through the discharging switch and serves as the output terminal of the charging and discharging circuit, connected to the magnetic stimulation coil. The charging switch and the discharging switch are controlled by the high-voltage power supply module. The sampling circuit is connected between the energy storage capacitor and the high-voltage power supply module to collect the voltage of the energy storage capacitor. The high-voltage power supply module controls the charging switch to turn on when the collected voltage is lower than a predetermined voltage, and controls the discharging switch to turn on when the collected voltage is higher than the predetermined voltage.

[0016] The control module is connected to the high-voltage power supply module and is used to control the operation of the high-voltage power supply module according to external commands.

[0017] According to another aspect of the present invention, a magnetic stimulation therapy device is provided, which includes a main unit, a treatment head housing and the aforementioned magnetic stimulation circuit, wherein the magnetic stimulation coil is disposed on the treatment head housing, the high voltage power supply module, the charging and discharging circuit and the control module are disposed on the main unit, and the magnetic stimulation coil is connected to the charging and discharging circuit on the main unit via a cable.

[0018] The further technical solution is as follows: the host is also provided with a human-computer interaction module, which includes a keyboard, a mouse and a touch screen, and the keyboard, mouse and touch screen are all connected to the control module.

[0019] Compared with existing technologies, the magnetic stimulation circuit of this invention is equipped with two charging and discharging circuits and magnetic stimulation coils. The two charging and discharging circuits are controlled by a control module, which can synchronously control the two magnetic stimulation coils to generate pulse magnetic field signals. When the energy storage capacitor discharges for magnetic stimulation therapy, the control module sends a signal to the high-voltage power supply module to cause the high-voltage power supply module to work. If the voltage of the energy storage capacitor collected by the sampling circuit is equal to the predetermined voltage, the high-voltage power supply module controls the discharge switch to conduct, and the energy storage capacitor discharges, controlling the two magnetic stimulation coils to output pulses synchronously. It can stimulate the same or different parts of the body in pairs. It supports single pulse stimulation (sTMS) mode, repetitive stimulation (rTMS) mode, and compound stimulation (TBS) mode. It also supports double pulse stimulation (pTMS) double beat paired associated stimulation (ccPAS) mode and single beat paired pulse magnetic stimulation (ppTMS) mode. Compared with the traditional approach of using two sets of magnetic stimulation therapy devices or simply piecing together two sets of magnetic stimulation therapy devices, the circuit of this invention is simpler, lower in cost, and can centrally control two magnetic stimulation coils, making it applicable to a wider range of modes. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the circuit structure of the first embodiment of the magnetic stimulation circuit of this utility model.

[0022] Figure 2 yes Figure 1 The diagram shows the specific circuit structure of the discharge module in the magnetic stimulation circuit.

[0023] Figure 3 This is a schematic diagram of the circuit structure of the second embodiment of the magnetic stimulation circuit of this utility model. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 1 , Figure 1 This is a schematic diagram of the circuit structure of the first embodiment of the magnetic stimulation circuit of this utility model. In the embodiment shown in the figure, the magnetic stimulation circuit includes a high-voltage power supply module 40, two magnetic stimulation coils (L1, L2), two parallel charging and discharging circuits (10A, 10B) respectively connected to the two magnetic stimulation coils (L1, L2), and a control module 30. In this embodiment, as shown... Figure 1As shown, the charging / discharging circuit 10A includes an energy storage capacitor C1, a sampling circuit 11A, a charging switch S1, and a discharging switch T1. The charging / discharging circuit 10B includes an energy storage capacitor C2, a sampling circuit 11B, a charging switch S2, and a discharging switch T2. The positive output of the high-voltage power supply module 40 is connected to one end of the energy storage capacitors C1 and C2 via the charging switches S1 and S2, respectively. The other ends of the energy storage capacitors C1 and C2 are connected to the negative output of the high-voltage power supply module 40. The two magnetic stimulation coils (L1, L2) are connected to the energy storage capacitors C1 and C2 via the discharging switches T1 and T2, respectively. The charging switches (S1, S2) and discharging switches (T1, T2) are controlled by the high-voltage power module 40. The sampling circuits (11A, 11B) are connected between the energy storage capacitors (C1, C2) and the high-voltage power module 40 to collect the voltages of the energy storage capacitors C1 and C2, respectively. This allows the high-voltage power module 40 to control the charging switches (S1, S2) to turn on when the collected voltage is lower than a predetermined voltage, and to control the discharging switches (T1, T2) to turn on when the collected voltage is equal to the predetermined voltage. The control module 30 is connected to the high-voltage power module 40 and is used to control the operation of the high-voltage power module 40 according to external commands. Preferably, the sampling circuits (11A, 11B) can use sampling resistors to collect and detect the voltage of the energy storage capacitors (C1, C2).

[0026] Based on the above design, the magnetic stimulation circuit of this utility model is provided with two charging and discharging circuits (10A, 10B) and magnetic stimulation coils (L1, L2). The two charging and discharging circuits (10A, 10B) are controlled by a control module 30, which can synchronously control the two magnetic stimulation coils (L1, L2) to generate pulsed magnetic field signals. When the energy storage capacitors (C1, C2) discharge for magnetic stimulation therapy, the control module 30 sends a signal to the high-voltage power supply module 40 to cause the high-voltage power supply module 40 to operate. If the voltage of the energy storage capacitors (C1, C2) collected by the sampling circuits (11A, 11B) is equal to a predetermined voltage, then the high-voltage power supply module 40 controls the discharge switches (T1, T2) to conduct, and the energy storage capacitors (C1, C2) discharge. C1 and C2 discharge, controlling the two magnetic stimulation coils (L1 and L2) to output pulses synchronously. They can be used to stimulate the same or different parts of the body in pairs. It supports single pulse stimulation (sTMS), repetitive stimulation (rTMS), and compound stimulation (TBS) modes, as well as double pulse stimulation (pTMS) with paired associated stimulation (ccPAS) and single-pulse paired magnetic stimulation (ppTMS) modes. Compared with the traditional method of using two sets of magnetic stimulation therapy devices or simply piecing together two sets of magnetic stimulation therapy devices, the circuit of this utility model is simpler, the cost is lower, and it can centrally control the two magnetic stimulation coils (L1 and L2), making it applicable to a wider range of modes.

[0027] In some embodiments, the magnetic stimulation circuit further includes two connectors (21A, 21B). One end of connectors 21A and 21B is connected to the energy storage capacitors C1 and C2 respectively via discharge switches T1 and T2, and the other end is connected to the negative output terminal of the high-voltage power supply module 40, serving as the output terminal of the charging and discharging circuit (10A, 10B). The two magnetic stimulation coils (L1, L2) are connected to the two connectors (21A, 21B) respectively. That is, the charging and discharging circuit 10A is connected to the magnetic stimulation coil L1 via connector 21A, and the charging and discharging circuit 10B is connected to the magnetic stimulation coil L2 via connector 21B. Based on this design, the connectors (21A, 21B) serve as connectors for connecting the magnetic stimulation coils (L1, L2) and the charging and discharging circuit (10A, 10B), and the magnetic stimulation coils (L1, L2) can also be detached from (10A, 10B).

[0028] Furthermore, in this embodiment, the charging and discharging circuit 10A further includes a driving module 12A, and the charging and discharging circuit 10B further includes a driving module 12B. The discharging switches (T1, T2) are bidirectional thyristors. The control terminal of the bidirectional thyristor is connected to the control terminal of the high-voltage power supply module 40 through the driving modules (12A, 12B). The first anode of the bidirectional thyristor is connected to the connector (21A, 21B), and its second anode is connected to the energy storage capacitor (C1, C2). The charging switches (S1, S2) can be MOSFETs, IGBTs, or thyristors. Their control terminals are connected to the high-voltage power supply module 40 through the driving modules (12A, 12B), their input terminals are connected to the positive output of the high-voltage power supply module 40, and their output terminals are connected to the energy storage capacitors (C1, C2). In this embodiment, the control signal output by the high-voltage power supply module 40 is isolated and amplified by the driving modules (12A, 12B) before driving the charging switches (S1, S2) and the discharging switches (T1, T2).

[0029] Preferably, in some embodiments, the charging and discharging circuit further includes a discharging module, that is, the charging and discharging circuit 10A further includes a discharging module 13A, and the charging and discharging circuit 10B further includes a discharging module 13B. The discharging module 13A and the discharging module 13B have the same structure, such as... Figure 2As shown, taking the discharge module 13A as an example, it includes a first resistor R1, a switch S, and an isolation circuit 130. The switch S can be a MOSFET or an IGBT. The input terminal of the isolation circuit 130 is connected to the high-voltage power supply module 40, and its output terminal is connected to the control terminal (gate) of the switch S. The input terminal (source) of the switch S is connected to the energy storage capacitor C1 and the second anode of the bidirectional thyristor T1 through the first resistor R1. The output terminal (drain) of the switch S is connected to the negative output terminal of the high-voltage power supply module 40 and the connector 21A. In this invention, the first resistor R1 in the discharge modules (13A, 13B) can be used to dissipate excess energy from the energy storage capacitors (C1, C2), and the isolation circuit 130 can be used to isolate the high-voltage part from the low-voltage part of the control signal, improving safety. Since the isolation circuit 130 is a commonly used isolation circuit in this field, it will not be described in detail here. Based on the above design, when the voltage of the energy storage capacitors (C1, C2) is higher than the predetermined voltage, the switch S of the discharge module (13A, 13B) is turned on. The first resistor R1 consumes the electrical energy on the energy storage capacitors (C1, C2) until the voltage of the energy storage capacitors (C1, C2) equals the predetermined voltage. Furthermore, the discharge module (13A, 13B) can also automatically consume the electrical energy on the energy storage capacitors (C1, C2) when the magnetic stimulation circuit stops working, i.e., when the magnetic stimulation therapy device equipped with the magnetic stimulation circuit is turned off.

[0030] In some embodiments, the control module 30 includes a central processing unit 31 and a controller 32. The central processing unit 31 is connected to the controller 32 to send signals to the controller 32 according to external instructions, so that the controller 32 controls the high-voltage power supply module 40 to operate. Preferably, the central processing unit 31 is partially an ARM or x86 architecture processor, and the controller 32 is an ARM Cortex-M3 series microcontroller. After receiving instructions from the central processing unit 31, the controller 32 performs corresponding processing according to the instructions issued by the central processing unit 31, and also outputs various control signals according to the instructions issued by the processor 31 to control the high-voltage power supply module 40 to operate.

[0031] Understandably, when the magnetic stimulation circuit of this utility model is working, it first charges or discharges the energy storage capacitors (C1, C2). The charging and discharging process is as follows: after determining the treatment plan, the central processing unit 31 sends the treatment intensity to the controller 32. The controller 32 converts and outputs a PWM signal with a corresponding duty cycle to the high-voltage power supply module 40, and also outputs relevant control signals to the high-voltage power supply module 40. The high-voltage power supply module 40 starts working upon receiving the signal. The working process of the charging and discharging circuit 10A is illustrated as an example:

[0032] State 1: If the voltage of the energy storage capacitor C1 detected by sampling is lower than the predetermined voltage, the high-voltage power supply module 40 outputs a charging signal to drive the charging switch S1 to turn on via the drive module 12A. At the same time, the high-voltage power supply module 40 outputs a discharging signal to the discharging module 13A to start charging. Charging continues until the voltage of the energy storage capacitor C1 rises to equal the predetermined voltage. Then, the high-voltage power supply module 40 outputs a charging disconnect signal to drive the charging switch S1 to disconnect via the drive module 12A. The high-voltage power supply module 40 stops working, and charging ends.

[0033] State 2: If the voltage of the energy storage capacitor C1 detected by sampling is higher than the predetermined voltage, the high-voltage power supply module 40 outputs a disconnect charging signal to drive the charging switch S1 to disconnect via the drive module 12A. At the same time, the high-voltage power supply module 40 outputs a discharge signal to the discharge module 13A to start discharging until the voltage of the energy storage capacitor C1 drops to equal to the predetermined voltage. Then, the high-voltage power supply module 40 outputs a disconnect discharge signal to the discharge module 13A, the high-voltage power supply module 40 stops working, and the discharge ends.

[0034] Then, discharge therapy is performed: During treatment, the controller 32 sends a control signal to the high-voltage power supply module 40 according to the treatment intensity issued by the processor 31. The high-voltage power supply module 40 starts working upon receiving the control signal. If the voltage of the energy storage capacitor C1 is equal to the predetermined voltage, the output signal of the high-voltage power supply module 40 turns on the bidirectional thyristor T1 via the drive module 12A. The energy storage capacitor C1 discharges rapidly to the magnetic stimulation coil L1. The time-varying forward current in the magnetic stimulation coil L1 generates a positive pulse magnetic field. When the voltage on the energy storage capacitor C1 is discharged to 0V, the reverse electromotive force of the magnetic stimulation coil L1 charges the energy storage capacitor C1 again. The time-varying reverse current in the magnetic stimulation coil L1 generates a reverse pulse magnetic field. When the current of the bidirectional thyristor T1 is 0, the bidirectional thyristor T1 is turned off, and the output ends.

[0035] As can be seen from the above, the magnetic stimulation circuit in this embodiment is equipped with two magnetic stimulation coils (L1, L2) and two charging and discharging circuits (10A, 10B). These circuits can be controlled independently without interference and are controlled by the same control module 30, allowing for synchronous control. When applied to a magnetic stimulation therapy device, it can be used as two instruments or as one instrument. When used as two instruments, the two charging and discharging circuits (10A, 10B) can be controlled independently or synchronously. This supports single-pulse stimulation (sTMS), repetitive stimulation (rTMS), and compound stimulation (TBS) modes, as well as the double-pulse stimulation (pTMS) paired-associated stimulation (ccPAS) mode and single-pulse paired magnetic stimulation (ppTMS) mode. When used as one instrument, two pulses are output in pairs each time. These two pulses are output to two different magnetic stimulation coils, stimulating different parts in pairs. This supports the double-pulse stimulation (pTMS) paired-associated stimulation (ccPAS) mode.

[0036] Reference Figure 3 , Figure 3 This is a schematic diagram of the circuit structure of the second embodiment of the magnetic stimulation circuit of this utility model. The difference between this embodiment and the first embodiment is the number of magnetic stimulation coils; the rest of the structure is the same or similar. In this embodiment, there is one magnetic stimulation coil. The two charging and discharging circuits (10A, 10B) are connected to the magnetic stimulation coil L1 through the connectors (21A, 21B). When the magnetic stimulation circuit of this utility model is in use, the two charging and discharging circuits (10A, 10B) are synchronously and independently controlled, and two pulses can be output in pairs each time. These two pulses are output to the same magnetic stimulation coil L1, and can successively stimulate the same area in pairs, equivalent to using a magnetic stimulation therapy device. However, it can not only realize single-pulse stimulation (sTMS), repetitive stimulation (rTMS), and combined stimulation (TBS) modes, but also the single-pulse paired pulse stimulation mode of double-pulse stimulation (pTMS).

[0037] Understandably, this utility model also provides a magnetic stimulation therapy device, including a main unit, a treatment head housing, and the magnetic stimulation circuit described in the first and second embodiments above. The magnetic stimulation coil is disposed on the treatment head housing, and the high-voltage power supply module, charging / discharging circuit, and control module are disposed on the main unit. The magnetic stimulation coil is connected to the charging / discharging circuit on the main unit via a cable and connector. Further, the main unit also includes a human-computer interaction module, which includes a keyboard, mouse, and touchscreen display. The keyboard, mouse, and touchscreen display are all connected to the control module, allowing input of commands via these devices. The display screen can be an LCD screen, capable of displaying the real-time operating status of the two charging / discharging circuits. Understandably, except for the magnetic stimulation circuit, the remaining structure of the magnetic stimulation therapy device can be the same as that of common magnetic stimulation therapy devices in the prior art. For example, the treatment head housing can be a treatment cap, etc., the structure of which is well known to those skilled in the art and will not be described further here.

[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A magnetic stimulation circuit, characterized in that, The magnetic stimulation circuit includes a high-voltage power supply module, two magnetic stimulation coils, two parallel charging and discharging circuits respectively connected to the two magnetic stimulation coils, and a control module. Each of the charging and discharging circuits includes an energy storage capacitor, a sampling circuit, a charging switch, and a discharging switch. The positive output terminal of the high-voltage power supply module is connected to one end of the energy storage capacitor through the charging switch, and the other end of the energy storage capacitor is connected to the negative output terminal of the high-voltage power supply module. The magnetic stimulation coil is connected to the energy storage capacitor through the discharging switch, and the charging switch and the discharging switch are controlled by the high-voltage power supply module. The sampling circuit is connected between the energy storage capacitor and the high-voltage power supply module to collect the voltage of the energy storage capacitor, so that the high-voltage power supply module controls the charging switch to turn on when the collected voltage is lower than a predetermined voltage, and controls the discharging switch to turn on when the collected voltage is equal to the predetermined voltage. The control module is connected to the high-voltage power supply module and is used to control the operation of the high-voltage power supply module according to external commands.

2. The magnetic stimulation circuit as described in claim 1, characterized in that, The magnetic stimulation circuit also includes two connectors, each of which is connected to its energy storage capacitor via a discharge switch in the charging and discharging circuit to serve as the output terminal of the charging and discharging circuit, and each of the magnetic stimulation coils is connected to one of the connectors.

3. The magnetic stimulation circuit as described in claim 1, characterized in that, The charging switch is a MOSFET, IGBT, or thyristor.

4. The magnetic stimulation circuit as described in claim 1 or 3, characterized in that, The charging and discharging circuit also includes a driving module, which is connected to the control terminals of the high-voltage power supply module, the charging switch, and the discharging switch.

5. The magnetic stimulation circuit as described in claim 1, characterized in that, The discharge switch is a bidirectional thyristor. The control terminal of the bidirectional thyristor is connected to the control terminal of the high-voltage power supply module. The first anode of the bidirectional thyristor is connected to one end of the magnetic stimulation coil, and its second anode is connected to the energy storage capacitor. The other end of the magnetic stimulation coil is connected to the negative output terminal of the high-voltage power supply module.

6. The magnetic stimulation circuit as described in claim 5, characterized in that, The charging and discharging circuit also includes a discharging module, which includes a first resistor, a switch, and an isolation circuit. The input terminal of the isolation circuit is connected to the high-voltage power supply module, and its output terminal is connected to the control terminal of the switch. The input terminal of the switch is connected to the energy storage capacitor and the second anode of the bidirectional thyristor through the first resistor. The output terminal of the switch is connected to the output negative terminal of the high-voltage power supply module and the magnetic stimulation coil.

7. The magnetic stimulation circuit as described in claim 1, characterized in that, The control module includes a central processing unit and a controller. The central processing unit is connected to the controller to send signals to the controller according to external instructions, so that the controller controls the high-voltage power supply module to work.

8. A magnetic stimulation circuit, characterized in that, The magnetic stimulation circuit includes a high-voltage power supply module, a magnetic stimulation coil, two parallel charging and discharging circuits, two connectors, and a control module. The two charging and discharging circuits are respectively connected to the magnetic stimulation coil via the two connectors. Each of the charging and discharging circuits includes an energy storage capacitor, a sampling circuit, a charging switch, and a discharging switch. The positive output terminal of the high-voltage power supply module is connected to one end of the energy storage capacitor through the charging switch, and the other end of the energy storage capacitor is connected to the negative output terminal of the high-voltage power supply module. The connector is connected to the energy storage capacitor through the discharging switch and serves as the output terminal of the charging and discharging circuit, connected to the magnetic stimulation coil. The charging switch and the discharging switch are controlled by the high-voltage power supply module. The sampling circuit is connected between the energy storage capacitor and the high-voltage power supply module to collect the voltage of the energy storage capacitor. The high-voltage power supply module controls the charging switch to turn on when the collected voltage is lower than a predetermined voltage, and controls the discharging switch to turn on when the collected voltage is higher than the predetermined voltage. The control module is connected to the high-voltage power supply module and is used to control the operation of the high-voltage power supply module according to external commands.

9. A magnetic stimulation therapy device, characterized in that, The device includes a host, a treatment head housing, and the magnetic stimulation circuit according to any one of claims 1-8, wherein the magnetic stimulation coil is disposed on the treatment head housing, the high-voltage power supply module, the charging and discharging circuit and the control module are disposed on the host, and the magnetic stimulation coil is connected to the charging and discharging circuit on the host via a cable.

10. The magnetic stimulation therapy device as described in claim 9, characterized in that, The host computer is also equipped with a human-computer interaction module, which includes a keyboard, a mouse, and a touch screen. The keyboard, mouse, and touch screen are all connected to the control module.

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