High-frequency magnetic field stimulator for eyes and eye care method

Abstract

The invention discloses an ophthalmic high-frequency magnetic field stimulator and an eye nursing method. The ophthalmic high-frequency magnetic field stimulator comprises a controller and a head ring detachably connected with the controller through a cable, the head ring comprises an adjustable head ring telescopic belt and at least two magnetic stimulation actuators, and each magnetic stimulation actuator comprises an iron core formed by overlapping multiple layers of sheet metal and a conductive coil wound outside the iron core. The controller comprises a power supply module connected with a conductive coil of the magnetic stimulation actuator, the power supply module comprises a power supply for supplying direct current, the direct current is supplied through the power supply of the power supply module, a magnetic field is generated after the conductive coil is electrified, the waveform of current output by the controller is square wave, and the frequency is 1k-200kHz.

Description

Technical Field

[0001] The invention particularly relates to an eye high-frequency magnetic field stimulator and an eye care method, belonging to the technical field of magnetic therapy. Background Art

[0002] Ocular magnetic stimulation is a treatment method that uses magnetic fields to stimulate the eyes, aiming to improve eye health and vision problems. This method uses the energy of the magnetic field to promote blood circulation in the eyes and relieve eye fatigue. It has a positive intervention effect on some eye diseases.

[0003] Most of the magnetic stimulation actuators in existing eye magnetic stimulators are made of magnetic steel. For example, the element that provides the magnetic field in an existing eye magnetic stimulator is a physical therapy magnetic block. Since the magnetic field on the surface of the magnetic steel is basically fixed, the magnetic field strength of the magnetic actuator has no adjustment function. At most, the magnetic field can only be adjusted by the distance, which is inconvenient to use. In order to adjust the magnetic field, an eye magnetic stimulator in the prior art uses copper wire to wind a stimulation coil, and the maximum magnetic field strength can reach 1T. However, this strong magnetic controller directly uses a TMS (transcranial magnetic) stimulator. The main unit is bulky and has a high output energy, which causes the coil of the magnetic stimulator to heat up severely, so the maximum frequency cannot exceed 200Hz. Summary of the invention

[0004] The main purpose of the present invention is to provide an eye high-frequency magnetic field stimulator and an eye care method, thereby overcoming the deficiencies in the prior art.

[0005] In order to achieve the above-mentioned invention object, the technical solution adopted by the present invention includes: A first aspect of an embodiment of the present invention provides an eye-use high-frequency magnetic field stimulator, the eye-use high-frequency magnetic field stimulator comprises at least one magnetic stimulation device and a controller, each of the magnetic stimulation devices comprises x magnetic stimulation actuators, the x magnetic stimulation actuators are sequentially connected to form a ring structure, the x magnetic stimulation actuators are electrically connected to the controller independently, the controller is used to provide current to the magnetic stimulation actuator, and make the magnetic stimulation actuator generate a first magnetic field, and make the external magnetic field directions of the first magnetic field generated by two adjacent magnetic stimulation actuators opposite, and make the second magnetic field generated between the ends of the same end of the two adjacent magnetic stimulation actuators close to the inner area of ​​the ring structure, the magnetic field direction of the second magnetic field intersects with the external magnetic field direction of the first magnetic field, and the magnetic field direction of the second magnetic field is parallel to the circumference of the ring structure, x≥4, x is an even number; When the eye high-frequency magnetic field stimulator is worn and the controller provides current to the magnetic stimulation actuator, the x magnetic stimulation actuators included in each magnetic stimulation device surround the eye, the external magnetic field direction of the first magnetic field is perpendicular to the eye, and the x second magnetic fields are arranged around the eye.

[0006] Furthermore, the x magnetic stimulation actuators are arranged at intervals and in parallel.

[0007] Furthermore, the magnetic stimulation actuator includes an iron core and a conductive coil wound around the outside of the iron core, the conductive coil is electrically connected to the controller, and the central axis of the conductive coil is parallel to the central axis of the annular structure.

[0008] Furthermore, the core includes a plurality of stacked metal sheets.

[0009] Furthermore, the metal sheet includes an iron sheet or an iron alloy sheet.

[0010] Furthermore, the conductive coil comprises an enameled wire having an insulating layer, and the diameter of the conductive coil is 0.05 mm to 2 mm.

[0011] Furthermore, the magnetic stimulation actuator also includes a packaging shell, which is non-magnetic, and the iron core and the conductive coil are packaged inside the packaging shell. The packaging shells of x magnetic stimulation actuators are fixedly connected via non-magnetic connecting parts to form the annular structure.

[0012] Furthermore, the packaging shell and the connecting piece are both plastic components.

[0013] In a more specific implementation scheme, the controller includes a switching circuit module, a driving module and a power supply. The switching circuit module is electrically connected to the driving module and the power supply, respectively. The switching circuit module is also electrically connected to the magnetic stimulation actuator. The driving module is at least used to control the conduction time of the switching circuit module by outputting waveform signals of different frequencies.

[0014] Furthermore, the power supply includes a power supply circuit module, a switching power supply module and an output circuit module. The switching power supply module is electrically connected to the power supply circuit module and the output circuit module respectively, and the output circuit module is electrically connected to the switching circuit module.

[0015] Furthermore, the switching power supply module includes a rectifier bridge, an input filter circuit, an RCD clamp circuit, a switch element, a high-frequency transformer, a rectifier diode, an output filter circuit, a feedback module and a driver chip. The rectifier bridge is connected to the input filter circuit, the input filter circuit is also connected to one end of the RCD clamp circuit and one end of the primary side of the high-frequency transformer, the other end of the RCD clamp circuit and the other end of the primary side of the high-frequency transformer are connected to the switching element, one end of the secondary side of the high-frequency transformer is connected to the rectifier diode, the other end of the secondary side of the high-frequency transformer is grounded, the rectifier diode is connected to the output filter circuit, the output filter circuit is also connected to one end of the feedback module, and the other end of the feedback module is connected to the driver chip; The rectifier bridge and the input filter circuit are used to convert the AC power input from the previous stage into DC power, and the rectifier diode and the output filter circuit are used to convert the AC power input from the previous stage into DC power. By controlling the on and off of the switching element, the circuit energy is transmitted from the primary side of the high-frequency transformer to the secondary side, thereby realizing energy transmission while reducing the input voltage; the feedback module is used to detect the voltage value at the rear end of the output filter circuit, and transmit a signal to the driver chip according to the weight of the load. The driver chip drives the switch element according to the transmission signal provided by the feedback module to maintain the stability of the voltage value at the rear end of the output filter circuit.

[0016] Furthermore, the high-frequency magnetic field stimulator for eyes also includes: a headband, which can be worn on the human head, and the magnetic stimulation device is fixedly arranged on the headband, wherein the headband is non-magnetic.

[0017] Furthermore, the headband includes an adjustable telescopic strap.

[0018] A second aspect of an embodiment of the present invention provides an eye care method, comprising: Wearing the eye-use high-frequency magnetic field stimulator on the head of a human body, wherein the x magnetic stimulation actuators contained in each magnetic stimulation device surround the eyes; A controller applies current to the magnetic stimulation actuator, so that each of the x magnetic stimulation actuators contained in the magnetic stimulation device independently generates a first magnetic field, and the external magnetic field directions of the first magnetic field generated by two adjacent magnetic stimulation actuators are opposite, and a second magnetic field is generated between the ends of the same end of the inner area of ​​the annular structure of the magnetic stimulation device close to the two adjacent magnetic stimulation actuators, the external magnetic field direction of the first magnetic field is perpendicular to the eye, the x second magnetic fields are arranged around the eye, the magnetic field direction of the second magnetic field is parallel to the circumference of the annular structure, and the magnetic flux lines of the first magnetic field and the second magnetic field pass through the eye and the brain to apply magnetic stimulation to the eye.

[0019] Furthermore, the waveform of the current applied by the controller to the magnetic stimulation actuator is a square wave with a frequency of 1k~200kHz.

[0020] Compared with the prior art, the advantages of the present invention include: An eye high-frequency magnetic field stimulator provided by an embodiment of the present invention has a simple structure and is more compact and lightweight, making it easy to wear and use.

[0021] The magnetic field provided by the high-frequency magnetic field stimulator for eyes provided by the embodiment of the present invention has magnetic flux lines that pass through the eyes and the brain, and can provide a flatter magnetic field, thereby improving the care effect on the eyes.

[0022] The controller of a high-frequency magnetic field stimulator for the eye provided by an embodiment of the present invention can control the on-off time of the switching circuit by outputting waveforms of different frequencies, so that the mode and intensity of magnetic stimulation can be flexibly adjusted, thereby improving the flexibility of the high-frequency magnetic field stimulator for the eye. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a high-frequency magnetic field stimulator for eyes provided in a typical implementation case of the present invention; Figure 2 It is a structural schematic diagram of a magnetic stimulation actuator in a high-frequency magnetic field stimulator for an eye provided in a typical implementation case of the present invention; Figure 3 It is a schematic structural diagram of a packaging shell of a magnetic stimulation actuator in a high-frequency magnetic field stimulator for an eye provided in a typical implementation case of the present invention; FIG4 is a schematic diagram of a magnetic stimulation actuator in a high-frequency magnetic field stimulator for an eye provided in a typical embodiment of the present invention applying a magnetic field to the eye; Figure 5 It is a structural schematic diagram of a controller in a high-frequency magnetic field stimulator for eyes provided in a typical implementation case of the present invention; Figure 6 It is a schematic diagram of the structure of a power supply in a high-frequency magnetic field stimulator for eyes provided in a typical implementation case of the present invention; Figure 7 It is a schematic diagram of the structure of a switching power supply in a high-frequency magnetic field stimulator for eyes provided in a typical implementation case of the present invention; Figure 8 This is a circuit diagram of the connection part between the switching circuit and the magnetic stimulation actuator. DETAILED DESCRIPTION

[0024] In view of the deficiencies in the prior art, the inventor of this case has proposed the technical solution of the present invention after long-term research and extensive practice. The technical solution, its implementation process and principle, etc. will be further explained in conjunction with the accompanying drawings and specific implementation cases. Unless otherwise specified, the various functional components used in the embodiments of the present invention are known to those skilled in the art and can be purchased commercially. The specific product models, etc. are not limited or explained here.

[0025] Those skilled in the art should understand that, in the disclosure of the present invention, the orientation or positional relationship indicated by terms such as "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0026] Example See also Figure 1 As shown in Figure 4, a high-frequency magnetic field stimulator for eyes includes a wearable device, six magnetic stimulation actuators 5 and a controller 8. The wearable device can be worn on the head of a human body. The six magnetic stimulation actuators 5 are arranged in parallel and spaced apart to form a ring-shaped magnetic stimulation device. The magnetic stimulation device is fixedly mounted on the wearable device. The six magnetic stimulation actuators 5 are respectively connected to the controller 8. The controller 8 is used to independently provide current to the magnetic stimulation actuators 5, and make the magnetic stimulation actuators 5 generate a first magnetic field, and generate a second magnetic field between adjacent magnetic stimulation actuators, and make the magnetic field act on the eyes and brain of the human body, thereby achieving magnetic stimulation.

[0027] When the wearable device is worn on the human head, the magnetic field direction of the magnetic field generated by the magnetic stimulation actuator 5 is parallel to the extension direction of the central axis of the human face, and the magnetic flux lines of the magnetic field pass through the human eyes. Six magnetic stimulation actuators 5 can form an array so that multiple points around the eyes can receive magnetic stimulation at the same time.

[0028] In this embodiment, the wearable device includes a rigid headband 7 with a fixed posture and an adjustable retractable belt 6. The two ends of the retractable belt 6 are respectively fixedly connected to the two ends of the headband 7 to form a ring-shaped wearable structure. Six magnetic stimulation actuators 5 are fixedly arranged on the headband 7. By adjusting the length of the retractable belt 6, the size of the wearable structure can be changed to adapt to different human bodies. For example, the adjustable structure of the retractable belt 6 is a prior art. For example, the retractable belt 6 can be an elastic belt or other retractable structure. For example, the retractable belt 6 can be fixedly combined with a buckle or other structure, and the retractable belt 6 and the headband 7 can also be fixedly combined with a buckle or other structure. In this embodiment, the six magnetic stimulation actuators 5 are distributed on the front side of the headband 7. The six magnetic stimulation actuators 5 can work simultaneously or sequentially, so as to better produce the effect of magnetic stimulation.

[0029] In this embodiment, please refer to Figure 2 , Figure 3 The magnetic stimulation actuator 5 includes a packaging shell 26 and an iron core 24 and a conductive coil 25 that are packaged inside the packaging shell 26. The iron core 24 is formed by stacking multiple layers of sheet metal sheets. The conductive coil 25 is wound around the outside of the iron core 24 and forms a reversible magnet. The packaging shell 26 is a plastic shell, the iron core 24 is made of pure iron or iron alloy, and the conductive coil 25 is an enameled wire with an insulating layer. It should be noted that the conductive coil 25 is arranged around the axis of the iron core 24. For example, the outer diameter of the conductive coil 25 is 10 mm, the inner diameter is 5 mm, and the height is 20 mm. The magnetic field strength can also be changed by changing the size of the conductive coil 25, that is, changing the outer diameter to 15 mm, the inner diameter to 10 mm, and the height to 20 mm. In this embodiment, the packaging shells 26 of the six magnetic stimulation actuators 5 are fixedly connected by plastic connectors to form a ring-shaped magnetic stimulation device.

[0030] like Figure 4a , Figure 4b As shown, when the magnetic stimulation device is set around the eye, six magnetic stimulation actuators 5 are distributed around the eye, and the central axes of the conductive coils 25 of the six magnetic stimulation actuators 5 are set in parallel and perpendicular to the human face; when the controller provides current to the six magnetic stimulation actuators, the external magnetic field directions of the first magnetic field generated by two adjacent magnetic stimulation actuators 5 are opposite and perpendicular to the eyes / face, and a second magnetic field is also generated between the ends of the same end of two adjacent magnetic stimulation actuators 5, and the magnetic field direction of the second magnetic field intersects with the external magnetic field direction of the first magnetic field, and the magnetic field direction of the second magnetic field is parallel to the circumference of the annular structure of the magnetic stimulation device, and the magnetic flux lines of the first magnetic field and the second magnetic field pass through the eyes and brain of the human body.

[0031] In this example, see Figure 5-Figure 7The controller 8 includes a controller housing 1 and a switch circuit (module) 10 module, a drive module 11 and a power supply 9 encapsulated inside the controller housing 1. The switch circuit (module) 10 module is electrically connected to the drive module 11 and the power supply 9 respectively. The switch circuit (module) 10 module is electrically connected to the magnetic stimulation actuator 5 through a cable 4. The power supply 9 is used to provide direct current. The drive module 11 is at least used to control the conduction time of the switch circuit (module) 10 module by outputting waveform signals of different frequencies. A start / stop button 3 and an indicator light 2 are provided on the controller housing 1. After the power is turned on, the start / stop button 3 is pressed to perform magnetic stimulation treatment. After pressing the start / stop button 3, the therapeutic device can stop working.

[0032] In this embodiment, please refer to Figure 8 , the driving module 11 outputs PWM, keeps the cycle of a single PWM constant, the initial duty cycle is 0%, and as time goes by, the duty cycle gradually increases and eventually reaches 50%, and then as time goes by, the duty cycle gradually decreases and eventually becomes 0%, realizing a set of sinusoidal wave outputs. After such control, the waveform acting on the load (magnetic stimulation actuator 5) becomes: the amplitude of the initial waveform is 0, and as time goes by, the amplitude gradually increases until it reaches the maximum, and then as time goes by, the amplitude gradually decreases until it reaches 0. Add an inductor L and select a suitable inductance value to achieve the purpose of boosting, thereby increasing the magnetic field strength.

[0033] For details, please refer to Figure 8 , the switch circuit in the present invention includes a MOS tube or an IGBT, a device that can realize high-frequency conduction and shutdown. Then the magnetic stimulation actuator is used as a load, one end is connected to the power supply, and the other end is connected to the D pole of the MOS tube or the C pole of the IGBT. When the MOS tube or the IGBT is turned on, the voltage acting on the magnetic stimulation actuator is the power supply voltage. In order to increase the voltage on the magnetic stimulation actuator so as to increase the magnetic field strength generated by the magnetic stimulation actuator without changing the power supply voltage, an inductor is added to the load end. One end of the inductor is connected to the power supply, and the other end is connected to the magnetic stimulation actuator, that is, the inductor is connected in series with the magnetic stimulation actuator. As is well known, the inductor, as an energy storage element, has the function of boosting, that is, when the MOS tube or the IGBT is turned on, the voltage acting on the magnetic stimulation actuator can be about twice the power supply voltage, generating a greater magnetic field strength to achieve an enhanced magnetic stimulation effect on the eye.

[0034] Specifically, the main functional element of the driving module 11 is a transistor. The driving module 11 may include a single transistor or a push-pull circuit composed of multiple transistors. The conduction of the transistor is controlled by a pulse signal, thereby controlling the operation of the switching circuit (module) 10. In addition, the driving module 11 controls the conduction time of the switching circuit (module) 10 by outputting waveform signals of different frequencies, which can be low frequency or high frequency, thereby achieving different therapeutic effects.

[0035] In this embodiment, the power supply 9 includes a power supply circuit (module) 12, a switching power supply (module) 13 and an output circuit (module) 14. The switching power supply 13 is electrically connected to the power supply circuit 12 and the output circuit 14 respectively. The output circuit 14 is electrically connected to the switching circuit (module) 10 module. The switching power supply (module) 13 and the output circuit (module) 14 convert the alternating current of the power supply circuit 12 into the direct current required by the power supply 9.

[0036] In this example, see Figure 7 The switching power supply (module) 13 includes a rectifier bridge 15, an input filter circuit 16, an RCD clamp circuit 17, a switching element 18, a high-frequency transformer 19, a rectifier diode 20, an output filter circuit 21, a feedback module 22 and a driver chip 23, wherein the rectifier bridge 15 is connected to the input filter circuit 16, the input filter circuit 16 is connected to one end of the RCD clamp circuit 17 and one end of the primary side of the high-frequency transformer 19, the other end of the RCD clamp circuit 17 and the other end of the primary side of the high-frequency transformer 19 are connected to the switch element 18, one end of the secondary side of the high-frequency transformer 19 is connected to the rectifier diode 20, the other end of the secondary side of the high-frequency transformer 19 is grounded, the rectifier diode 20 is connected to the output filter circuit 21, the output filter circuit 21 is connected to one end of the feedback module 22, the other end of the feedback module 22 is connected to the driver chip 23, and the rectifier bridge 15 and the input filter circuit 16 convert the AC power input from the previous stage into DC power.

[0037] Specifically, the RCD clamping loop 17 includes a circuit composed of a resistor, a capacitor and a diode, which is used to suppress the resonant voltage spike and protect the switch element 18 from damage. The switch element 18 and the high-frequency transformer 19 are the core components of the switching power supply 13. By controlling the on and off of the switch element 18, the circuit energy is conducted from the primary side of the high-frequency transformer 19 to the secondary side, achieving the purpose of energy transmission and voltage reduction. The high-frequency transformer 19 satisfies the requirement of reducing the input voltage to a voltage value lower than the input voltage. The rectifier diode 20 and the output filter circuit 21 convert the AC input of the front stage into DC. The feedback module 22 will detect the voltage value at the rear end of the output filter circuit 21 and transmit a signal to the driver chip 23 according to the weight of the load. The driver chip 23 will drive the switch element 18 at a certain frequency according to the transmission signal provided by the feedback module 22. When the load is heavy, the driver chip 23 will increase the driving frequency to drive the switch element 18. Conversely, when the load is light, the driver chip 23 will reduce the driving frequency to drive the switch element 18. The ultimate goal is to maintain the stability of the voltage value at the rear end of the output filter circuit 21.

[0038] In this embodiment, the power supply circuit is connected to the AC mains, the output filter circuit is connected to the switching circuit, and the switching circuit is connected to the conductive coil of the magnetic stimulator actuator. With this structure, the AC mains is used to power the switching power supply, and the AC mains is transformed into a DC power lower than the AC mains by the switching power supply. Finally, the magnetic stimulation actuator is discharged by turning on and off the switching circuit. When the conductive coil is energized, a magnetic field is generated, and the peak value of the magnetic field is located at the end face of the iron core of the magnetic stimulation actuator. Among them, the switching circuit includes switching devices such as MOS tubes or IGBTs and other related devices with high-frequency switching functions, the input filter circuit includes a capacitor as a main component or a related circuit composed of a capacitor and an inductor, the output filter circuit includes a capacitor as a main component or a related circuit composed of a capacitor and an inductor, and the feedback module includes an optocoupler as a main component and its related circuits.

[0039] In this embodiment, the controller also includes an operation control module, which includes a driving module connected to the switching circuit. With this structure, the driving module controls the on-off time of the switching circuit by outputting waveforms of different frequencies, thereby flexibly adjusting the mode and intensity of magnetic stimulation.

[0040] The eye magnetic stimulator provided in the embodiment of the present invention is powered by a power supply that provides direct current, and by controlling the conduction frequency of the switching element, a voltage pulse of a certain frequency is generated, so that a magnetic field of a certain frequency is generated after the conductive coil is energized, thereby achieving the effect of magnetic stimulation.

[0041] In this embodiment, when the eye care method is performed using the eye high-frequency magnetic field stimulator, the eye high-frequency magnetic field stimulator is worn on the human head, and the magnetic stimulation actuator is located in front of the eye. When the magnetic stimulation device is set around the eye, the six magnetic stimulation actuators 5 are distributed around the eye, and the central axes of the conductive coils 25 of the six magnetic stimulation actuators 5 are arranged in parallel and perpendicular to the human face; a controller is used to apply current to the magnetic stimulation actuator, and when the magnetic stimulation device is set around the eye, the six magnetic stimulation actuators 5 are distributed around the eye, and the central axes of the conductive coils 25 of the six magnetic stimulation actuators 5 are arranged in parallel and perpendicular to the human face. The central axis of the electric coil 25 is arranged in parallel and perpendicular to the human face; when the controller provides current to the six magnetic stimulation actuators, the external magnetic field directions of the first magnetic field generated by two adjacent magnetic stimulation actuators 5 are opposite and perpendicular to the eyes / face, and a second magnetic field is also generated between the ends of the same end of two adjacent magnetic stimulation actuators 5, and the magnetic field direction of the second magnetic field intersects with the external magnetic field direction of the first magnetic field, and the magnetic field direction of the second magnetic field is parallel to the circumference of the annular structure of the magnetic stimulation device, and the magnetic flux lines of the first magnetic field and the second magnetic field pass through the eyes and brain of the human body.

[0042] It should be understood that the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-frequency magnetic field stimulator for eyes, used to apply magnetic stimulation to the eyes of human body, characterized in that: The eye-use high-frequency magnetic field stimulator comprises at least one magnetic stimulation device and a controller, each of the magnetic stimulation devices comprises x magnetic stimulation actuators, the x magnetic stimulation actuators are sequentially connected to form a ring structure, the x magnetic stimulation actuators are electrically connected to the controller independently, the controller is used to provide current to the magnetic stimulation actuator, and make the magnetic stimulation actuator generate a first magnetic field, and make the external magnetic field directions of the first magnetic field generated by two adjacent magnetic stimulation actuators opposite, and make the second magnetic field generated between the ends of the same end of the two adjacent magnetic stimulation actuators close to the inner area of ​​the ring structure, the magnetic field direction of the second magnetic field intersects with the external magnetic field direction of the first magnetic field, and the magnetic field direction of the second magnetic field is parallel to the circumference of the ring structure, x≥4, x is an even number; When the eye high-frequency magnetic field stimulator is worn and the controller provides current to the magnetic stimulation actuator, the x magnetic stimulation actuators included in each magnetic stimulation device surround the eye, the external magnetic field direction of the first magnetic field is perpendicular to the eye, and the x second magnetic fields are arranged around the eye.

2. The high-frequency magnetic field stimulator for eyes according to claim 1, characterized in that: The x magnetic stimulation actuators are arranged in parallel and at intervals.

3. The high-frequency magnetic field stimulator for eyes according to claim 1 or 2, characterized in that: The magnetic stimulation actuator includes an iron core and a conductive coil wound outside the iron core, the conductive coil is electrically connected to the controller, and the central axis of the conductive coil is parallel to the central axis of the annular structure.

4. The high-frequency magnetic field stimulator for eyes according to claim 3, characterized in that: The core includes a plurality of metal sheets stacked in layers; And / or, the metal sheet comprises an iron sheet or an iron alloy sheet; And / or, the conductive coil comprises an enameled wire having an insulating layer, and the diameter of the conductive coil is 0.05 mm to 2 mm.

5. The high-frequency magnetic field stimulator for eyes according to claim 3, characterized in that: The magnetic stimulation actuator further includes a packaging shell, which is non-magnetic, and the iron core and the conductive coil are packaged inside the packaging shell. The packaging shells of the x magnetic stimulation actuators are fixedly connected via non-magnetic connectors to form the annular structure. Preferably, the packaging shell and the connecting piece are both plastic components.

6. The high-frequency magnetic field stimulator for eyes according to claim 1, characterized in that: The controller includes a switching circuit module, a driving module and a power supply. The switching circuit module is electrically connected to the driving module and the power supply respectively. The switching circuit module is also electrically connected to the magnetic stimulation actuator. The driving module is at least used to control the conduction time of the switching circuit module by outputting waveform signals of different frequencies.

7. The high-frequency magnetic field stimulator for eyes according to claim 6, characterized in that: The power supply comprises a power supply circuit module, a switching power supply module and an output circuit module. The switching power supply module is electrically connected to the power supply circuit module and the output circuit module respectively, and the output circuit module is electrically connected to the switching circuit module.

8. The high-frequency magnetic field stimulator for eyes according to claim 5, characterized in that: The switching power supply module includes a rectifier bridge, an input filter circuit, an RCD clamp circuit, a switch element, a high-frequency transformer, a rectifier diode, an output filter circuit, a feedback module and a driver chip. The rectifier bridge is connected to the input filter circuit, the input filter circuit is also connected to one end of the RCD clamp circuit and one end of the primary side of the high-frequency transformer, the other end of the RCD clamp circuit and the other end of the primary side of the high-frequency transformer are connected to the switching element, one end of the secondary side of the high-frequency transformer is connected to the rectifier diode, the other end of the secondary side of the high-frequency transformer is grounded, the rectifier diode is connected to the output filter circuit, the output filter circuit is also connected to one end of the feedback module, and the other end of the feedback module is connected to the driver chip; The rectifier bridge and the input filter circuit are used to convert the AC power input from the previous stage into DC power, and the rectifier diode and the output filter circuit are used to convert the AC power input from the previous stage into DC power. By controlling the on and off of the switching element, the circuit energy is transmitted from the primary side of the high-frequency transformer to the secondary side, thereby realizing energy transmission while reducing the input voltage; the feedback module is used to detect the voltage value at the rear end of the output filter circuit, and transmit a signal to the driver chip according to the weight of the load. The driver chip drives the switch element according to the transmission signal provided by the feedback module to maintain the stability of the voltage value at the rear end of the output filter circuit.

9. The high-frequency magnetic field stimulator for eyes according to claim 1, characterized in that: Also includes: A headband, which can be worn on a human head, and the magnetic stimulation device is fixedly arranged on the headband, wherein the headband is non-magnetic; Preferably, the headband comprises an adjustable telescopic strap.

10. An eye care method, characterized in that: include: Wearing the high-frequency magnetic field stimulator for eyes according to any one of claims 1 to 9 on the head of a human body, wherein the x magnetic stimulation actuators contained in each magnetic stimulation device surround the eyes; A controller is used to apply current to the magnetic stimulation actuator, so that the x magnetic stimulation actuators included in each magnetic stimulation device independently generate a first magnetic field, and the external magnetic field directions of the first magnetic field generated by two adjacent magnetic stimulation actuators are opposite, and a second magnetic field is generated between the ends of the same end of the inner area of ​​the annular structure of the magnetic stimulation device of two adjacent magnetic stimulation actuators, the external magnetic field direction of the first magnetic field is perpendicular to the eye, the x second magnetic fields are arranged around the eye, the magnetic field direction of the second magnetic field is parallel to the circumference of the annular structure, and the magnetic flux lines of the first magnetic field and the second magnetic field pass through the eye and the brain, so as to apply magnetic stimulation to the eye; Preferably, the waveform of the current applied by the controller to the magnetic stimulation actuator is a square wave with a frequency of 1k~200kHz.

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