Independent power supply unit, implant, brain neuromodulator and method of operation thereof

Abstract

The application discloses an independent power supply unit, an implant, a brain nerve regulator and a working method thereof. The independent power supply unit comprises a battery, a first coil and a sealing layer. Two ends of the first coil are connected with positive and negative poles of the battery respectively. The sealing layer wraps the first coil and the battery to form an independent sealing body. The implant comprises a shell and an in-vivo machine and an independent power supply unit in the shell. The independent power supply unit is detachably installed in the shell and is wirelessly coupled with a second coil of the in-vivo machine through the first coil. The brain nerve regulator comprises an in-vivo machine and an implant. An in-vivo processor of the in-vivo machine is wirelessly coupled with the first coil and / or the second coil through a third coil. The application combines wireless power supply and battery power supply and adopts a structure of easily replaceable battery, so that the service life of the implant is greatly prolonged. When the battery life is used up, the independent power supply unit can be taken out through a small operation, so that the operation risk is greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of electronic medical technology, and in particular to an independent power supply unit, an implant, a brain nerve modulator, and a method of operation thereof. Background Technology

[0002] Implantable neuromodulators can be used for brain nerve signal acquisition and treatment, and are widely used in the treatment of chronic diseases such as Parkinson's disease, dystonia, essential tremor, and epilepsy. In existing technologies, implantable neuromodulators typically consist of an implant and electrodes. The implant is usually placed subcutaneously in the chest wall, and the electrodes are implanted in the brain. The implant is connected to the electrodes via subcutaneous leads, and the electrodes collect physiological electrical signals and output stimulation electrical signals at target nuclei. However, existing chest / abdominal wall implanted neuromodulator devices still have the following problems:

[0003] (1) Battery life issue: Most implantable devices use built-in batteries that support 24-hour power supply. Continuous battery function will shorten the battery life, resulting in the need to replace the battery frequently.

[0004] (2) Battery replacement issue: The internal battery used in general implantable devices needs to be replaced after it reaches the end of its life. However, since the battery and feedthrough are sealed, the entire implant needs to be replaced, which increases the risk of surgery, infection rate, and difficulty of surgery.

[0005] (3) The electrode wires are prone to breakage: Most breakages occur behind the ear, especially at the interface between the intracranial electrode and the extension wire.

[0006] (4) Interference signals introduced by connecting wires: For feedback implanted brain nerve modulation devices, it is necessary to collect brain nerve signals. Excessively long wires will introduce more interference signals. Summary of the Invention

[0007] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0008] Therefore, the present invention provides an independent power supply unit, an implant, a brain nerve modulator and its working method, which improves battery life by combining wireless power supply and battery power supply; and adopts a structure that makes the battery easy to replace, thereby reducing surgical risks.

[0009] The technical solution adopted by this invention to solve its technical problem is: an independent power supply unit, comprising:

[0010] The battery, the first coil, and the sealing layer; wherein,

[0011] The two ends of the first coil are respectively connected to the positive and negative terminals of the battery;

[0012] The sealing layer encloses the first coil and the battery to form an independent sealed body.

[0013] Furthermore, the sealing layer is made of a flexible material and is used to encapsulate the first coil and the battery through injection molding.

[0014] The top of the sealing layer is provided with a conical boss.

[0015] Furthermore, it also includes:

[0016] The mounting body is box-shaped, with an internal cavity for accommodating the battery, and the first coil is placed on the outside of the mounting body;

[0017] The two ends of the first coil pass through the side of the mounting body and are electrically connected to the positive and negative terminals of the battery via a circuit board.

[0018] Furthermore, the bottom of the mounting body is provided with an opening for placing the battery in the internal cavity;

[0019] A removable cover plate is provided at the opening to seal the internal cavity of the mounting body; and

[0020] The first coil is positioned above the top of the mounting body.

[0021] The present invention also provides an implant, comprising:

[0022] The outer casing, and

[0023] The internal unit and the independent power supply unit are respectively located inside the outer casing; wherein

[0024] The independent power supply unit is detachably installed inside the housing and wirelessly coupled to the second coil of the internal machine via the first coil.

[0025] Furthermore, the outer shell is made of a flexible material and has a mounting groove on it to accommodate the independent power supply unit;

[0026] The mounting slot is located in the hollow inner ring of the second coil to facilitate wireless coupling between the first coil and the second coil;

[0027] The top of the mounting groove is constricted and gradually decreases in thickness to fit the conical boss on the top of the sealing layer.

[0028] Furthermore, the first coil and the second coil are concentric but located on different planes;

[0029] The distance between the outer coil of the first coil and the inner coil of the second coil is 2-10 cm.

[0030] The distance between the plane containing the first coil and the plane containing the second coil is 1-6 cm.

[0031] Furthermore, the in vivo machine includes: an in vivo processor, and a stimulation module and a acquisition module respectively connected to the in vivo processor;

[0032] The in-body processor is connected to the second coil via a wire.

[0033] The present invention also provides a brain nerve modulator, comprising:

[0034] The external machine and the implant;

[0035] The external processor of the external machine is wirelessly coupled to the first and / or second coils via a third coil.

[0036] Furthermore, when the third coil is wirelessly coupled to both the first and second coils simultaneously, the first coil and the second coil are wirelessly disconnected, and the external unit supplies power to the internal unit while simultaneously charging the battery.

[0037] When the third coil is wirelessly coupled only to the first coil, the external unit charges the battery and wirelessly couples the first coil to the second coil, thus enabling the battery to power the internal unit.

[0038] When the third coil is wirelessly coupled only to the second coil, the external unit supplies power to the internal unit;

[0039] When the third coil is disconnected from wireless coupling, the first coil is wirelessly coupled to the second coil, enabling the battery to power the internal machine.

[0040] The present invention also provides a method for operating a brain nerve modulator, including the following operating modes:

[0041] Operating mode 1: The internal unit operates, and the internal unit is powered primarily by the battery;

[0042] Working mode two: When the internal unit is working and the battery is not working, the internal unit is powered by the external unit.

[0043] Working mode three: When the internal unit is working and the battery power is low, the external unit supplies power to the internal unit while charging the battery.

[0044] Working mode four: When the internal unit is not working and the battery power is low, the battery is charged through the external unit.

[0045] Operating mode five: When the internal machine is not working and the battery life is insufficient, the independent power supply unit is replaced from the implant.

[0046] The beneficial effects of this invention are:

[0047] The independent power supply unit of the present invention, by combining a battery with a first coil, enables the battery to power the in-body processor and the external unit to wirelessly charge the battery, thereby extending the battery's lifespan.

[0048] The implant of this invention can wirelessly power the in-body processor and charge the battery at night, while the battery can directly power the in-body processor during the day. It also supports higher internal circuit power consumption to achieve more complex circuit functions and wireless communication functions, greatly extending the device's lifespan. There are no wiring harnesses connecting the battery and the in-body processor, making it easy to remove and place the battery when it reaches the end of its lifespan. The battery and the in-body processor are encased together in a shell. When the battery is depleted, only the independent power unit can be removed through a simple minor surgery, without having to remove the entire implant, greatly reducing surgical risks.

[0049] The brain nerve modulator of the present invention allows the external processor to be wirelessly coupled to the first and / or second coils via a third coil, enabling battery charging, power supply to the internal processor, and communication.

[0050] The working method of the brain nerve regulator of the present invention has multiple working modes, which can not only improve the working efficiency of the internal organ, but also improve the charging efficiency of the battery and reduce the risk of brain nerve regulator failure. Attached Figure Description

[0051] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0052] Figure 1 This is a cross-sectional view of the independent power supply unit of the present invention.

[0053] Figure 2 This is a perspective view of the independent power supply unit of the present invention.

[0054] Figure 3 This is a top view of the first coil of the present invention.

[0055] Figure 4 This is a cross-sectional view of the implant of the present invention.

[0056] Figure 5 This is a top view of the implant (without the outer shell) of the present invention.

[0057] Figure 6 This is a top view of the implant of the present invention.

[0058] Figure 7 This is a schematic diagram of the brain nerve modulator of the present invention.

[0059] In the diagram: 100, implant; 200, external unit; 1, independent power supply unit; 2, outer shell; 3, internal unit; 4, first electrode; 5, second electrode; 11, battery; 12, first coil; 13, sealing layer; 14, mounting body; 15, circuit board; 16, cover plate; 131, conical boss; 21, mounting slot; 31, second coil; 32, internal processor; 33, stimulation module; 34, acquisition module; 35, lead wire; 201, internal processor. Detailed Implementation

[0060] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0061] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0062] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0063] Example 1

[0064] like Figures 1 to 3As shown, the independent power supply unit 1 of this embodiment includes: a battery 11, a first coil 12, and a sealing layer 13; wherein, the two ends of the first coil 12 are respectively connected to the positive and negative terminals of the battery 11; the sealing layer 13 encloses the first coil 12 and the battery 11 to form an independent sealed body. In other words, the independent power supply unit 1 of this embodiment is an independent unit. The battery 11 and the first coil 12 are encapsulated together by the sealing layer 13. The battery 11 can obtain electrical energy from the outside through the first coil 12 to extend the service life of the battery 11.

[0065] For example, the sealing layer 13 is made of a flexible material and is injection molded to encapsulate the first coil 12 and the battery 11. The flexible material is, for example, silicone. A tapered boss 131 is provided on the top of the sealing layer 13. The independent power supply unit 1 also includes a mounting body 14, which is box-shaped. The internal cavity of the mounting body 14 is used to accommodate the battery 11, and the first coil 12 is placed on the outside of the mounting body 14. The two ends of the first coil 12 pass through the sides of the mounting body 14 and are electrically connected to the positive and negative terminals of the battery 11 via a circuit board 15. In other words, the battery 11 is embedded in the internal cavity of the mounting body 14, and the first coil 12 is located outside the internal cavity of the mounting body 14, for example, placed on the top of the mounting body 14. The two ends of the first coil 12 pass through the top of the mounting body 14 and are electrically connected to the circuit board 15. The battery 11 can also be electrically connected to the circuit board 15, thereby achieving an electrical connection between the first coil 12 and the battery 11. The first coil 12 can wirelessly couple with an external device to charge the battery 11.

[0066] For example, the mounting body 14 has an opening at the bottom for placing the battery 11 into the internal cavity. A removable cover plate 16 is provided at the opening to seal the internal cavity of the mounting body 14. The first coil 12 is positioned above the top of the mounting body 14. In other words, the mounting body 14 is a box-shaped structure with an open bottom. The cover plate 16 can be connected to the bottom of the mounting body 14 to seal the internal cavity. The bottom opening of the mounting body 14 facilitates the installation of the battery 11 and the circuit board 15 into the internal cavity, and also facilitates the wiring between the first coil 12 and the circuit board 15. The shape of the mounting body 14 can be cylindrical or cuboid, preferably cylindrical, to facilitate assembly with the first coil 12 and to facilitate the setting of the tapered boss 131.

[0067] The assembly process of the independent power supply unit 1 in this embodiment is as follows: the battery 11 is electrically connected to the circuit board 15; the two ends of the first coil 12 are passed through the top of the mounting body 14 and electrically connected to the circuit board 15; the circuit board 15 and the battery 11 are placed into the internal cavity of the mounting body 14; the cover plate 16 is connected to the bottom of the mounting body 14; and the first coil 12 is placed on the top of the mounting body 14. Finally, a sealing layer 13 is formed on the outer surface of the first coil 12 and the mounting body 14 by injection molding, tightly wrapping the first coil 12, the mounting body 14, and the cover plate 16.

[0068] Example 2

[0069] like Figures 4 to 6 As shown, the implant 100 of this embodiment includes: a shell 2, and an in-body unit 3 and an independent power supply unit 1 respectively located inside the shell 2. The independent power supply unit 1 is detachably installed inside the shell 2 and wirelessly coupled to the second coil 31 of the in-body unit 3 via a first coil 12. In other words, both the in-body unit 3 and the independent power supply unit 1 are located inside the shell 2. The shell 2 is made of a flexible material, such as silicone, which can effectively enclose the in-body unit 3 and the independent power supply unit 1 and has a certain degree of elasticity. The shell 2 can improve the protective properties and flexibility of the implant 100. The shell 2 is provided with a mounting groove 21 for accommodating the independent power supply unit 1. The mounting groove 21 is located in the hollow inner ring of the second coil 31 to facilitate wireless coupling between the first coil 12 and the second coil 31. The top of the mounting groove 21 is provided with an opening for loading and unloading the independent power supply unit 1. The opening is constricted, and the edge thickness of the opening gradually decreases towards the conical protrusion 131 to adapt to the conical protrusion 131 on the top of the sealing layer 13.

[0070] In other words, the inner diameter of the second coil 31 is larger than the outer diameter of the independent power supply unit 1. The independent power supply unit 1 is located in the hollow inner ring of the second coil 31, that is, the second coil 31 is arranged around the independent power supply unit 1. This facilitates better wireless coupling between the first coil 12 and the second coil 31. The independent power supply unit 1 is embedded in the mounting groove 21. The top of the mounting groove 21 is not closed, that is, the opening is smaller than the independent power supply unit 1. Taking advantage of the deformability of the flexible material of the outer shell 2, the independent power supply unit 1 is placed into the mounting groove 21 from the top. After placement, as the thickness of the top of the mounting groove 21 gradually decreases to the opening, the upper surface of the conical protrusion 131 on the top of the sealing layer 13 can be basically flush with the surface of the outer shell 2. Because the independent power supply unit 1 and the mounting groove 21 of the implant 100 are matched in shape, combined with the deformability of the outer shell 2, the sealing of the implant 100 is achieved, meeting the implantation requirements. At the same time, since other components of the independent power supply unit are not connected by connectors, it is also convenient to load and unload the independent power supply unit 1 from the implant 100.

[0071] For example, the first coil 12 and the second coil 31 are concentric but located on different planes. The distance between the outer ring of the first coil 12 and the inner ring of the second coil 31 is 2cm-10cm, and the distance between the plane containing the first coil 12 and the plane containing the second coil 31 is 1cm-6cm. Alternatively, the plane containing the first coil 12 may be above the plane containing the second coil 31. Projecting the first coil 12 and the second coil 31 onto the same plane, the distance between the outer ring of the projection plane of the first coil 12 and the inner ring of the projection plane of the second coil 31 is 2cm-10cm, and the height difference between the plane containing the first coil 12 and the plane containing the second coil 31 is 1cm-6cm. This arrangement aims to, on the one hand, make the wireless coupling between the first coil 12 and the second coil 31 more stable, and on the other hand, make the implant structure more compact, thus reducing the implant's volume.

[0072] The in vivo machine 3 also includes an in vivo processor 32, a stimulation module 33 and a acquisition module 34 respectively connected to the in vivo processor 32, and the in vivo processor 32 is connected to the second coil 31 via a wire 35. The in vivo processor 32 is used to control the operation of the stimulation module 33 and the acquisition module 34. The stimulation module 33 is electrically connected to the stimulation electrode, and the acquisition module 34 is electrically connected to the acquisition electrode. The stimulation electrode is used to output stimulation signals, and the acquisition electrode is used to acquire physiological electrical signals. The stimulation module 33 can generate stimulation signals and send them to the stimulation electrode to stimulate the patient, and the acquisition module 34 can receive the physiological signals acquired by the acquisition electrode. For example, the in-vivo processor 32 includes: an implant modulation module, an implant demodulation module, an AC / DC module, an implant DC / DC module, and an implant microcontroller. The AC / DC module can convert the radio frequency waveform on the second coil 31 into a DC voltage. The implant DC / DC module can convert the DC voltage into a DC power supply voltage suitable for powering the in-vivo processor 32. The implant demodulation module can convert the radio frequency waveform on the second coil 31 into a digital signal waveform. The implant modulation module changes the resonant state of the second coil 31 according to the digital signal waveform generated by the implant microcontroller to generate a radio frequency waveform on the second coil 31 containing information sent back by the implant.

[0073] The implant 100 also includes a first electrode 4 and a second electrode 5, which are embedded in the outer surface of the housing 2, with their upper surfaces exposed outside the housing 2. Thus, the upper surfaces of the first electrode 4 and the second electrode 5 can contact human skin or tissue to generate a potential. In this embodiment, the first electrode 4 is a reference electrode and the second electrode 5 is a ground electrode; alternatively, both the first electrode 4 and the second electrode 5 are ground electrodes; or the first electrode 4 is a ground electrode and the second electrode 5 is a reference electrode. The type of the first electrode 4 and the second electrode 5 is not limited here and can be configured as needed. For example, the first electrode 4 and the second electrode 5 can be flat and have a certain curvature to increase the contact area with human skin or tissue. The first electrode 4 and the second electrode 5 can be made of platinum-iridium alloy, which has a certain strength and elasticity.

[0074] It should be noted that the first coil 12 and the second coil 31 can be wirelessly coupled, enabling the battery 11 to power the internal organ 3. The first coil 12 can also wirelessly couple with an external device to charge the battery 11, thus extending the battery 11's lifespan, reducing the frequency of battery replacements, and minimizing secondary harm to the patient. The second coil 31 can also directly wirelessly couple with an external device to obtain power. Therefore, the implant 100 in this embodiment has two power supply modes: battery power and wireless power. By combining wireless and battery power, the usage time of the implant 100 can be extended, reducing the number of surgical replacements.

[0075] Example 3

[0076] like Figure 7As shown, the brain nerve modulator of this embodiment includes an external unit 200 and an implant 100. The external processor 201 of the external unit 200 is wirelessly coupled to the first coil 12 and / or the second coil 31 via a third coil 202. In other words, the external processor 201 can be wirelessly coupled to the first coil 12, the second coil 31, or both simultaneously. For example, when the third coil 202 is wirelessly coupled to both the first coil 12 and the second coil 31, the wireless coupling between the first coil 12 and the second coil 31 is disconnected, and the external unit 200 supplies power to the implant 3 while charging the battery 11. When the third coil 202 is wirelessly coupled only to the first coil 12, the external unit 200 charges the battery 11 and wirelessly couples it to the second coil 31 via the first coil 12, enabling the battery 11 to supply power to the implant 3. When the third coil 202 is wirelessly coupled only to the second coil 31, the external unit 200 supplies power to the implant 3. When the third coil 202 disconnects its wireless coupling, the first coil 12 wirelessly couples with the second coil 31, enabling the battery 11 to power the in-body unit 3. In other words, there are multiple wireless coupling modes between the implant 100 and the external unit 200. When the third coil 202 wirelessly couples with the second coil 31, in addition to powering the in-body processor 32, wireless data transmission can also be performed.

[0077] For example, the external processor 201 includes: a power amplifier, an external modulation module, an external demodulation module, an external DC / DC module, and an external microcontroller. The external modulation module converts the information generated by the external microcontroller into a digital signal waveform and sends it to the power amplifier. The external DC / DC module converts the DC voltage provided by the power supply of the external unit 200 into a power supply voltage suitable for the implant 100 and supplies it to the power amplifier. The power amplifier converts the digital signal waveform and the power supply voltage suitable for the implant 100 into a radio frequency waveform and transmits it to the implant 100 through wireless coupling between the third coil 202 and the first coil 12 and / or the second coil 31. The external demodulation module converts the radio frequency wave containing the information sent back by the implant 100 on the third coil 202 into a digital signal waveform and sends it to the external microcontroller.

[0078] Example 4

[0079] The operating method of the brain nerve modulator in this embodiment includes the following operating modes: Operating mode 1: The in-body unit 3 is operating, and power is preferentially supplied to the in-body unit 3 via the battery 11. Operating mode 2: When the in-body unit 3 is operating and the battery 11 is not operating, power is supplied to the in-body unit 3 via the external unit 200. Operating mode 3: When the in-body unit 3 is operating and the battery 11 has insufficient power, power is supplied to the in-body unit 3 via the external unit 200 while simultaneously charging the battery 11. Operating mode 4: When the in-body unit 3 is not operating and the battery 11 has insufficient power, the battery 11 is charged via the external unit 200. Operating mode 5: When the in-body unit 3 is not operating and the battery 11 has insufficient lifespan, the independent power supply unit 1 is replaced from the implant 100.

[0080] In other words, the brain nerve modulator of the present invention has multiple operating modes. For example, the internal unit 3 can be powered by the battery 11 or the external unit 200 to maintain its normal operation. When the battery 11 is low on power, the external unit 200 maintains the normal operation of the internal unit 3 and can also charge the battery 11. When the internal unit 3 is in hibernation, if the battery 11 is low on power, it can also be charged by the external unit 200. When the battery 11 reaches the end of its lifespan, the independent power unit 1 can be removed and replaced during the hibernation of the internal unit 3 through a minor surgery, without having to remove the entire brain nerve modulator. This not only reduces surgical risks but also does not affect the normal operation of the internal unit 3.

[0081] The working method of this invention has multiple working modes, which can not only improve the working efficiency of the internal organ, but also improve the charging efficiency of the battery and reduce the risk of brain nerve regulator failure.

[0082] In summary, the independent power supply unit, implant, brain nerve modulator, and their working method of the present invention have the following beneficial effects: (1) At night, the in-body processor 32 can be powered wirelessly and the battery 11 can be charged simultaneously. During the day, the in-body processor 32 can be directly powered by the battery 11, while supporting higher internal circuit power consumption to achieve more complex circuit functions and wireless communication functions, greatly extending the service life of the device. (2) By combining the battery 11 with the first coil 12, the battery 11 can power the in-body processor 32 when the third coil 202 is not coupled. The in-body processor 32 can work normally through wireless coupling of the first coil 12 and the second coil 31. There is no wire harness connection between the battery 11 and the in-body processor 32, which is convenient for removal and placement when the battery life is exhausted. (3) The battery 11 and the in-body processor 32 are wrapped together by the outer shell 2. When the battery 11 is exhausted, only the independent power supply unit 1 can be removed by a simple minor surgery, without removing the entire implant 100, which greatly reduces the surgical risk.

[0083] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined by the scope of the claims.

Claims

1. A brain nerve modulator, characterized in that, include: External machine (200) and implant (100); The implant (100) includes: The outer shell (2), and The internal unit (3) and the independent power supply unit (1) are located inside the outer shell (2), respectively; the independent power supply unit (1) includes: a battery (11), a first coil (12) and a sealing layer (13); the two ends of the first coil (12) are respectively connected to the positive and negative terminals of the battery (11); the sealing layer (13) wraps the first coil (12) and the battery (11) to form an independent sealed body; The independent power supply unit (1) is detachably installed inside the housing (2) and wirelessly coupled to the second coil (31) of the internal machine (3) via the first coil (12); The external processor (201) of the external machine (200) is wirelessly coupled to the first coil (12) and / or the second coil (31) via the third coil (202); When the third coil (202) is wirelessly coupled to the first coil (12) and the second coil (31) at the same time, the first coil (12) and the second coil (31) are wirelessly disconnected, and the external machine (200) supplies power to the internal machine (3) while charging the battery (11); When the third coil (202) is wirelessly coupled only to the first coil (12), the external machine (200) charges the battery (11) and wirelessly couples with the second coil (31) through the first coil (12), so that the battery (11) supplies power to the internal machine (3); When the third coil (202) is wirelessly coupled only to the second coil (31), the external unit (200) supplies power to the internal unit (3); When the third coil (202) is disconnected from wireless coupling, the first coil (12) is wirelessly coupled to the second coil (31), so that the battery (11) supplies power to the internal machine (3).

2. The brain nerve modulator as described in claim 1, characterized in that, The sealing layer (13) is made of flexible material and is used to wrap the first coil (12) and battery (11) by injection molding. The top of the sealing layer (13) is provided with a conical boss (131).

3. The brain nerve modulator as described in claim 1, characterized in that, The independent power supply unit (1) also includes: Mounting body (14), the mounting body (14) is box-shaped, the internal cavity of the mounting body (14) is used to accommodate the battery (11), and the first coil (12) is placed on the outside of the mounting body (14); The two ends of the first coil (12) pass through the side of the mounting body (14) and are electrically connected to the positive and negative terminals of the battery (11) via the circuit board (15).

4. The brain nerve modulator as described in claim 3, characterized in that, The bottom of the mounting body (14) is provided with an opening for placing the battery (11) in the internal cavity; A removable cover plate (16) is provided at the opening to seal the internal cavity of the mounting body (14); and The first coil (12) is disposed above the top of the mounting body (14).

5. The brain nerve modulator as described in claim 1, characterized in that, The outer shell (2) is made of flexible material and has a mounting groove (21) for accommodating the independent power supply unit (1); The mounting slot (21) is located in the inner ring hollow of the second coil (31) to facilitate wireless coupling between the first coil (12) and the second coil (31); The top of the mounting groove (21) is constricted and gradually decreases in thickness to fit the conical boss (131) on the top of the sealing layer (13).

6. The brain nerve modulator as described in claim 1, characterized in that, The first coil (12) and the second coil (31) are concentric but located on different planes; The distance between the outer coil of the first coil (12) and the inner coil plane of the second coil (31) is 2cm-10cm; The distance between the plane where the first coil (12) is located and the plane where the second coil (31) is located is 1cm-6cm.

7. The brain nerve modulator as described in claim 1, characterized in that, The in vivo machine (3) includes: an in vivo processor (32), a stimulation module (33) and a collection module (34) respectively connected to the in vivo processor (32); The in-body processor (32) is connected to the second coil (31) via a wire (35).

8. A method for operating the brain nerve modulator as described in claim 1, characterized in that, The following working modes are included: Working mode one, the in-body machine (3) works, and the in-body machine (3) is powered by the battery (11) first; Working mode 2: When the in-body unit (3) is working and the battery (11) is not working, the in-body unit (3) is powered by the external unit (200); Working mode 3: When the in-body machine (3) is working and the battery (11) is low on power, the in-body machine (3) is powered by the external machine (200) while the battery (11) is charged. Working mode four: When the in-body machine (3) is not working and the battery (11) is low on power, the battery (11) is charged by the external machine (200); In working mode 5, when the in-body machine (3) is not working and the battery (11) is not long enough, the independent power supply unit (1) is replaced from the implant (100).

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