Multifunctional electro-therapeutic apparatus

Abstract

The utility model relates to the technical field of electro-therapeutic apparatuses, in particular to a multifunctional electro-therapeutic apparatus, which comprises a shell; the main control board is mounted on the shell; an electrode wire and an electrode slice, wherein the main control board is electrically connected with the electrode slice through the electrode wire; the display screen and the adjusting key are both installed on the shell and are both electrically connected with the main control board; a myoelectricity acquisition sensor; in the thickness direction of the electrode plate, the electrode plate comprises an appearance layer, a heating layer substrate, a heating layer, an insulating layer, a conductive layer and a hydrogel layer which are sequentially attached. The myoelectricity acquisition sensor is arranged between the conductive layer and the hydrogel layer; the electrode plate further comprises a snap button connector connected to the electrode wire and the appearance layer. The heating layer is connected with the snap button connector to form a heating loop; and the conductive layer is connected with the snap button connector to form a conductive loop. The functions of the electro-therapeutic apparatus are expanded.

Description

Technical Field

[0001] This utility model relates to the field of electrotherapy device technology, specifically to a multifunctional electrotherapy device. Background Technology

[0002] In the field of modern medicine and rehabilitation, electrotherapy devices have become a common and important tool due to their unique therapeutic advantages. They stimulate human tissues by outputting electric currents of specific frequencies and intensities, achieving effects such as promoting blood circulation and relaxing muscles.

[0003] The basic principle of existing electrotherapy devices is based on electrical stimulation, which applies current to the human body by outputting current of a specific frequency and intensity. Most products only offer adjustable current intensity levels to suit different user tolerances, while some more advanced products have simple waveform switching capabilities, such as square waves and sine waves. However, overall, technological development remains at a basic stage centered on electrotherapy functions.

[0004] Existing electrotherapy devices focus on the function of electrotherapy, which leads to a problem of limited functionality. However, users have diverse needs. For example, some users need to receive heat therapy, which electrotherapy devices cannot meet, resulting in a gradual decline in the user experience provided by electrotherapy devices.

[0005] Therefore, how to overcome the shortcomings of the existing technology mentioned above has become the subject of this utility model. Utility Model Content

[0006] The purpose of this invention is to provide a multifunctional electrotherapy device.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A multifunctional electrotherapy device, comprising:

[0009] case;

[0010] The main control board is mounted on the housing;

[0011] Electrode wires and electrode plates, the main control board being electrically connected to the electrode plates via the electrode wires;

[0012] The display screen and adjustment keys are both mounted on the housing and are electrically connected to the main control board;

[0013] Electromyography (EMG) sensor;

[0014] Along the thickness direction of the electrode sheet, the electrode sheet includes an outer layer, a heating layer substrate, a heating layer, an insulating layer, a conductive layer, and a hydrogel layer that are sequentially bonded together.

[0015] The electromyography sensor is disposed between the conductive layer and the hydrogel layer;

[0016] The electrode sheet also includes a snap-fit ​​connector that connects the electrode wire to the outer layer;

[0017] The heating layer is connected to the push button connector to form a heating circuit;

[0018] The conductive layer is connected to the push button connector to form a conductive circuit.

[0019] In the above scheme, the main control board is a circuit board protected by a casing. The main control board is responsible for the functional control and operational coordination of the entire electrotherapy device. The adjustment buttons are connected to the main control board, allowing commands to be input. The display screen is also connected to the main control board, providing real-time feedback on the device's operating status and parameters. The main control board is connected to the electrode pads via electrode wires. The electrical signals generated by the main control board are transmitted to the electrode pads via these wires, ultimately stimulating neuromuscular tissue.

[0020] This application incorporates a conductive layer and other structures to create a conductive circuit, enabling the electrode pads to perform the conventional function of stimulating neuromuscular tissue. Furthermore, the inclusion of a heating circuit allows the electrode pads to heat the tissues. Additionally, the inclusion of an electromyography (EMG) sensor enables the electrode pads to collect EMG signals. These features expand upon existing single-function electrode pads in multiple ways.

[0021] The electromyography (EMG) sensor is positioned between the conductive layer and the hydrogel layer, allowing it to be placed closer to the target during use, thus improving the effectiveness of EMG signal acquisition. Furthermore, the hydrogel layer, unlike the outer layer, has properties that prevent it from interfering with EMG signal acquisition.

[0022] In a further technical solution, the electrode sheet is configured as two.

[0023] When two electrode pads are used, they can work together. For example, one electrode pad's outer layer can adhere to the target for better heating, while the other electrode pad's hydrogel layer can adhere to the target for better stimulation of its neuromuscular tissue. This can be flexibly adjusted according to actual needs.

[0024] In a further technical solution, the push button connector is configured as a plurality of such connectors, wherein a portion of the push button connectors are connected to the heating layer, and another portion of the push button connectors are connected to the conductive layer.

[0025] By controlling different push button connectors, the heating circuit and the conductive circuit can be started asynchronously, thereby switching between heating and stimulating neuromuscular tissue, further improving the flexibility of the electrode pads.

[0026] In a further technical solution, the electrode wire is snapped together with the electrode sheet, or the electrode wire is magnetically connected to the electrode sheet.

[0027] The buckle connection instructions are as follows:

[0028] In some embodiments, a flexible snap-fit ​​plug is provided at the end of the electrode wire, and a corresponding slot or socket is provided on the electrode plate. The flexible design of the snap-fit ​​plug enables it to generate a certain squeezing force when inserted into the slot or socket, thereby achieving a tight connection.

[0029] The snap-fit ​​connection provides a reliable connection and is not easily dislodged by slight pulling; at the same time, the plug-in snap-fit ​​connection is easy to operate; in addition, snap-fits of different specifications can be designed according to different needs, and are suitable for various types and sizes of electrode plates.

[0030] The magnetic connection is explained below:

[0031] In some embodiments, matching magnetic elements are installed at the ends of the electrode wires and on the electrode sheets, respectively, and the connection is achieved by the attraction between the magnetic elements. Strong magnetic materials such as neodymium iron boron can be used to ensure sufficient attraction to maintain the connection.

[0032] Magnetic connections eliminate the need for aligning the slots or performing complex insertion and removal operations. Simply bring the end of the electrode wire close to the electrode plate, and it will automatically attach and connect, improving connection speed. This is especially suitable for situations where electrode plates need to be replaced frequently. Compared to snap-fit ​​connections, magnetic connections eliminate mechanical friction during insertion and removal, thus preventing wear on the connection points and extending the lifespan of the electrode wire and electrode plate.

[0033] In a further technical solution, the thickness of the outer layer is greater than the thickness of the conductive layer.

[0034] The thickness of the outer layer is greater than the thickness of the conductive layer, which can be regarded as setting the outer layer to be thicker and the conductive layer to be thinner.

[0035] The conductive layer serves to conduct electricity. A thinner conductive layer can reduce the cost of the electrode sheet while ensuring good conductivity, and it also helps to ensure the flexibility and fit of the electrode sheet.

[0036] The outer layer is the outer structure of the electrode sheet, and its thickness is beneficial for the long-term use of the electrode sheet.

[0037] A further technical solution is that, along the thickness direction of the housing, the housing includes an upper housing and a lower housing connected to each other;

[0038] The upper housing and the lower housing enclose a cavity, and the main control board is placed inside the cavity;

[0039] At least one of the upper housing or the lower housing has a through hole for the electrode wire to pass through, and the through hole communicates with the cavity.

[0040] The housing is divided into an upper housing and a lower housing, which facilitates the installation and disassembly of the main control board and other structures.

[0041] In some embodiments, the upper shell and the lower shell have the same structure, and both the upper shell and the lower shell are provided with openings. The description will be based on the case of a single perforation and two openings, with the two openings enclosing each other to form a perforation.

[0042] In a further technical solution, a portion of the adjustment key is located within the cavity;

[0043] The adjustment key is located on the outside of the housing.

[0044] The adjustment key is located inside the cavity, which reduces the degree to which the adjustment key protrudes relative to the shell in the thickness direction of the shell, thereby reducing the overall space required by this application and providing convenience for placing the electrotherapy device.

[0045] The adjustment keys are located on the outside of the housing, providing convenience for operating them.

[0046] In a further technical solution, a fixing member is provided on the upper housing or the lower housing, and a fixing hole is provided on the main control board corresponding to the fixing member.

[0047] The following description describes the fasteners on the housing. During installation, first install the main control board, and then fix the main control board to the lower housing by connecting the fasteners to the fixing holes. Then install the upper housing.

[0048] By setting up a fixed structure to fix the main control board, the stability of the main control board can be guaranteed even if the size of the cavity is larger than the size of the main control board.

[0049] In a further technical solution, a groove for fixing the display screen is provided on the outer surface of the housing.

[0050] By accommodating the display screen in a groove, the degree of protrusion of the display screen relative to the housing in the thickness direction can be reduced, or the display screen can be prevented from protruding relative to the housing, thereby reducing the overall space required by this application and providing convenience for placing the electrotherapy device.

[0051] In a further technical solution, the thickness of the groove is less than the thickness of the display screen.

[0052] The slot can be adapted to the size of the display screen to facilitate screen mounting.

[0053] By limiting the thickness of the groove and the display screen, part of the display screen can protrude from the groove, making it easier to disassemble the display screen.

[0054] The terms "first," "second," etc., used in this article do not specifically refer to order or sequence, nor are they intended to limit this case; they are merely used to distinguish components or operations described using the same technical terms.

[0055] The terms "connection" or "positioning" as used in this article can refer to two or more components or devices making direct physical contact with each other, or making indirect physical contact with each other, or to two or more components or devices operating or moving with each other.

[0056] The terms “include,” “including,” and “have” used in this article are all open-ended, meaning they include but are not limited to.

[0057] Unless otherwise specified, the terms used herein generally have their ordinary meaning in the context of the art, the subject matter, and the specific context. Certain terms used to describe this case will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the case.

[0058] The terms “front,” “back,” “up,” “down,” “left,” and “right” used in this article are directional terms. In this case, they are only used to describe the positional relationship between the structures and are not intended to limit the specific direction of the protection scheme or its actual implementation.

[0059] The working principle and advantages of this utility model are as follows:

[0060] The main control board is connected to the electrode pads via electrode wires. The electrical signals generated by the main control board are transmitted to the electrode pads via the electrode wires, ultimately stimulating the neuromuscular tissue.

[0061] This application incorporates a conductive layer and other structures to create a conductive circuit, enabling the electrotherapy device to perform its conventional function of stimulating neuromuscular tissue. Furthermore, the inclusion of a heating circuit provides a heating function. Additionally, the inclusion of an electromyography (EMG) sensor allows the device to collect EMG signals. These features expand the functionality of existing single-function electrotherapy devices in multiple ways, improving the user experience.

[0062] The electromyography (EMG) sensor is positioned between the conductive layer and the hydrogel layer, allowing it to be placed closer to the target during use, thus improving the effectiveness of EMG signal acquisition. Furthermore, the hydrogel layer, unlike the outer layer, has properties that prevent it from interfering with EMG signal acquisition. Attached Figure Description

[0063] Figure 1 This is a schematic diagram of the structure of the electrotherapy device according to an embodiment of the present invention;

[0064] Figure 2This is a schematic diagram of the structure of the electrode sheet and protective film in an embodiment of the present invention.

[0065] In the above attached diagrams: 1. Housing; 11. Upper housing; 12. Lower housing; 13. Cavity; 14. Perforation; 15. Fixing component; 16. Groove; 2. Main control board; 21. Fixing hole; 3. Electrode wire; 4. Electrode sheet; 41. Outer layer; 42. Heating layer substrate; 43. Heating layer; 44. Insulating layer; 45. Conductive layer; 46. Hydrogel layer; 47. Button connector; 5. Display screen; 6. Adjustment key; 7. Electromyography sensor; 8. Protective film. Detailed Implementation

[0066] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0067] Example: The present invention will be clearly described below with illustrations and detailed description. Any person skilled in the art who understands the examples of the present invention can make changes and modifications based on the technology taught in the present invention without departing from the spirit and scope of the present invention.

[0068] The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the scope of this work. Singular forms such as “a,” “this,” “this,” “the,” and “the” as used herein also include plural forms.

[0069] See Figures 1-2 A multifunctional electrotherapy device, comprising:

[0070] Casing 1;

[0071] Main control board 2 is mounted on the housing 1;

[0072] Electrode wire 3 and electrode sheet 4, the main control board 2 is electrically connected to the electrode sheet 4 through the electrode wire 3;

[0073] The display screen 5 and the adjustment keys 6 are both mounted on the housing 1 and are electrically connected to the main control board 2;

[0074] Electromyography (EMG) sensor 7;

[0075] Along the thickness direction of the electrode sheet 4, the electrode sheet 4 includes an outer layer 41, a heating layer substrate 42, a heating layer 43, an insulating layer 44, a conductive layer 45, and a hydrogel layer 46 that are sequentially bonded together.

[0076] The electromyography sensor 7 is disposed between the conductive layer 45 and the hydrogel layer 46;

[0077] The electrode sheet 4 also includes a snap-fit ​​connector 47 that connects the electrode wire 3 to the outer layer 41;

[0078] The heating layer 43 is connected (or electrically connected) to the push button connector 47 to form a heating circuit;

[0079] The conductive layer 45 is connected to the push button connector 47 to form a conductive circuit.

[0080] The push button connector 47 is positioned on the outer layer 41 and is electrically connected to the electrode wire 3.

[0081] The main control board 2 is a circuit board protected by the housing 1. The main control board 2 is responsible for the functional control and operational coordination of the entire electrotherapy device. The adjustment key 6 is connected to the main control board 2, allowing commands to be input. The display screen 5 is also connected to the main control board 2, providing real-time feedback on the device's operating status and parameters. The main control board 2 is connected to the electrode pads 4 via electrode wires 3. The electrical signals generated by the main control board 2 are transmitted to the electrode pads 4 via electrode wires 3, ultimately stimulating neuromuscular tissue.

[0082] This application incorporates a conductive layer 45 and other structures to create a conductive circuit, enabling the electrode pad 4 to perform its conventional function of stimulating neuromuscular tissue (also known as electroacupuncture). Furthermore, the heating circuit provides a heating effect for the electrode pad 4. Additionally, the electromyography sensor 7 enables the electrode pad 4 to collect electromyography signals. This multi-faceted approach expands the functionality of the existing single-function electrode pad 4 (also known as an electrotherapy device).

[0083] The electromyography (EMG) acquisition sensor 7 is disposed between the conductive layer 45 and the hydrogel layer 46, which allows it to be closer to the target to be acquired during use, thereby improving the effect of acquiring EMG signals. In addition, the hydrogel layer 46 is different from the outer layer 41, and the (conductive) properties of the hydrogel layer 46 can avoid affecting the acquisition of EMG signals.

[0084] The push-button connector 47 is an electrical connection push-button, an existing feature known to those skilled in the art, and will not be described in detail here. The push-button connector 47 facilitates the connection between the heating circuit and the conductive circuit.

[0085] The electromyography (EMG) sensor 7 is an existing sensor and will not be described in detail here.

[0086] In some embodiments, the electromyography sensor 7 is disposed between any two layers of the electrode sheet 4 or positioned on any layer.

[0087] In some embodiments, the outer layer 41 is made of polyethylene foam and has a thickness of less than 0.5 mm. The outer layer 41 is part of the outer structure of the electrode sheet 4 and has a protective function.

[0088] In some embodiments, the heating layer 43 includes a PI film substrate sheet, the surface of which is covered with copper-plated busbars, which are connected to the push button connector 47 to form a heating circuit.

[0089] In some embodiments, the insulating layer 44 is a PET insulating layer.

[0090] In some embodiments, the conductive layer 45 is a carbon film conductive layer with a thickness of 0.1 mm.

[0091] In some embodiments, the heating layer substrate 42 is made of PET material.

[0092] In some embodiments, the surface of the hydrogel layer 46 facing away from the conductive layer 45 is provided with a peelable protective film 8.

[0093] See Figure 1 In this embodiment, two electrode plates 4 are provided.

[0094] When two electrode pads 4 are provided, the two electrode pads 4 can cooperate with each other. For example, the outer layer 41 of one electrode pad 4 can adhere to the target for better heating, while the hydrogel layer 46 of the other electrode pad 4 can adhere to the target for better stimulation of its neuromuscular tissue. This can be flexibly adjusted according to actual needs.

[0095] When two electrode pads 4 are set, one of the electrode pads 4 can be configured not to have an electromyography (EMG) sensor 7.

[0096] In some embodiments, the electrode pads 4 are configured as at least three, wherein some electrode pads 4 do not include the electromyography acquisition sensor 7.

[0097] See Figure 2 In this embodiment, multiple push button connectors 47 are provided, wherein a portion of the push button connectors 47 are connected to the heating layer 43, and another portion of the push button connectors 47 are connected to the conductive layer 45.

[0098] By controlling different push button connectors 47, the heating circuit and the conductive circuit can be started asynchronously, thereby switching between heating and stimulating neuromuscular tissue, further improving the flexibility of the electrode plate 4.

[0099] In this embodiment, the electrode wire 3 is snapped together with the electrode sheet 4, or the electrode wire 3 is magnetically connected to the electrode sheet 4.

[0100] The buckle connection instructions are as follows:

[0101] In some embodiments, a snap-fit ​​plug with elasticity is provided at the end of the electrode wire 3, and a corresponding slot or seat is provided on the electrode plate 4. The elastic design of the snap-fit ​​plug enables it to generate a certain squeezing force when inserted into the slot or seat, thereby achieving a tight connection.

[0102] The snap-fit ​​connection provides a reliable connection and is not easily dislodged by slight pulling; at the same time, the plug-in snap-fit ​​connection is easy to operate; in addition, snap-fits of different specifications can be designed according to different needs, and are suitable for various types and sizes of electrode plates.

[0103] The magnetic connection is explained below:

[0104] In some embodiments, matching magnetic elements are installed at the ends of the electrode wire 3 and on the electrode sheet 4, respectively, and the connection is achieved by the attraction between the magnetic elements. Strong magnetic materials such as neodymium iron boron can be used to ensure sufficient attraction to maintain the connection.

[0105] Magnetic connection eliminates the need for aligning the slot or performing complex insertion and removal operations. Simply bring the end of the electrode wire 3 close to the electrode plate 4 for automatic magnetic connection, improving connection speed. This is especially suitable for situations where the electrode plate 4 needs to be replaced frequently. Compared to snap-fit ​​connection, magnetic connection eliminates mechanical friction during insertion and removal, thus preventing wear on the connection parts and extending the service life of the electrode wire 3 and electrode plate 4.

[0106] In this embodiment, the thickness of the outer layer 41 is greater than the thickness of the conductive layer 45.

[0107] The thickness of the outer layer 41 is greater than the thickness of the conductive layer 45, which can be regarded as setting the outer layer 41 to be thicker and the conductive layer 45 to be thinner.

[0108] The conductive layer 45 is used to conduct electricity. A thinner conductive layer 45 can reduce the cost of the electrode sheet 4 while ensuring good conductivity, and it is also beneficial to ensure the flexibility and fit of the electrode sheet 4.

[0109] The outer layer 41 is the outer structure of the electrode sheet 4. Its thickness is beneficial to the long-term use of the electrode sheet 4.

[0110] See Figure 1 In this embodiment, along the thickness direction of the housing 1, the housing 1 includes an upper housing 11 and a lower housing 12 connected to each other;

[0111] The upper housing 11 and the lower housing 12 enclose a cavity 13, and the main control board 2 is placed inside the cavity 13;

[0112] At least one of the upper housing 11 or the lower housing 12 is provided with a through hole 14 for the electrode wire 3 to pass through, and the through hole 14 is connected to the cavity 13.

[0113] In some embodiments, the upper housing 11 and the lower housing 12 are threaded together.

[0114] The housing 1 is divided into an upper housing 11 and a lower housing 12, which facilitates the installation and disassembly of the main control board 2 and other structures.

[0115] In some embodiments, the upper housing 11 and the lower housing 12 have the same structure, and both the upper housing 11 and the lower housing 12 are provided with openings. The description takes a single through hole 14 as an example and two openings as an example. The two openings enclose each other to form a through hole 14.

[0116] In this embodiment, a portion of the adjustment key 6 is located within the cavity 13;

[0117] The adjustment key 6 is located on the outside of the housing 1.

[0118] The adjustment key 6 is located inside the cavity 13, which reduces the degree of protrusion of the adjustment key 6 relative to the housing 1 in the thickness direction of the housing 1, thereby reducing the overall space required by this application and providing convenience for placing the electrotherapy device.

[0119] The adjustment key 6 is located on the outside of the housing 1, which facilitates the operation of the adjustment key 6.

[0120] See Figure 1 In this embodiment, a fixing member 15 is provided on the upper housing 11 or the lower housing 12, and a fixing hole 21 is provided on the main control board 2 corresponding to the fixing member 15.

[0121] In some embodiments, the fastener 15 is fixed as a cylindrical structure.

[0122] In some embodiments, the fastener 15 is sized to match the fixing hole 21.

[0123] In some embodiments, both the fasteners 15 and the fixing holes 21 are provided in multiples, and each fastener 15 is distributed in a square array.

[0124] The following description is based on the fastener 15 provided on the housing 12. During installation, the main control board 2 is installed first. The main control board 2 is fixed to the lower housing 12 by the connection between the fastener 15 and the fixing hole 21. Then the upper housing 11 is installed.

[0125] By setting a fixed structure to fix the main control board 2, the stability of the main control board 2 can be guaranteed even if the size of the cavity 13 is larger than the size of the main control board 2.

[0126] In some embodiments, both the upper housing 11 and the lower housing 12 are provided with fixing members 15, and the upper housing 11 and the lower housing 12 can be positioned by the two fixing members 15. For example, one fixing member 15 is provided with a hole-like structure, and the other fixing member 15 can be inserted into this hole-like structure.

[0127] See Figure 1 In this embodiment, the outer surface of the housing 1 is provided with a groove 16 for fixing the display screen 5.

[0128] By accommodating the display screen 5 in the groove 16, the degree of protrusion of the display screen 5 relative to the housing 1 in the thickness direction can be reduced, or the display screen 5 can be prevented from protruding relative to the housing 1, thereby reducing the overall space required by this application and providing convenience for placing the electrotherapy device.

[0129] In this embodiment, the thickness of the groove 16 is less than the thickness of the display screen 5.

[0130] The slot 16 can be adapted to the size of the display screen 5 to facilitate fixing the display screen 5.

[0131] By limiting the thickness of the groove 16 and the display screen 5, a portion of the display screen 5 can protrude from the groove 16, making it easier to disassemble the display screen 5.

[0132] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A multifunctional electrotherapy device, characterized in that: include: Shell (1); The main control board (2) is mounted on the housing (1); Electrode wire (3) and electrode sheet (4), the main control board (2) is electrically connected to the electrode sheet (4) through the electrode wire (3); The display screen (5) and the adjustment keys (6) are both mounted on the housing (1) and are electrically connected to the main control board (2); Electromyography (EMG) sensor (7); Along the thickness direction of the electrode sheet (4), the electrode sheet (4) includes an outer layer (41), a heating layer substrate (42), a heating layer (43), an insulating layer (44), a conductive layer (45), and a hydrogel layer (46) that are sequentially bonded together. The electromyography sensor (7) is disposed between the conductive layer (45) and the hydrogel layer (46); The electrode sheet (4) also includes a push button connector (47) positioned on the outer layer (41) and electrically connected to the electrode wire (3). The heating layer (43) is electrically connected to the push button connector (47) to form a heating circuit; The conductive layer (45) is electrically connected to the push button connector (47) to form a conductive circuit.

2. The multifunctional electrotherapy device according to claim 1, characterized in that: The electrode sheet (4) is configured as two.

3. The multifunctional electrotherapy device according to claim 1, characterized in that: The push button connector (47) is configured in multiple ways, wherein a portion of the push button connector (47) is connected to the heating layer (43), and another portion of the push button connector (47) is connected to the conductive layer (45).

4. A multifunctional electrotherapy device according to any one of claims 1-3, characterized in that: The electrode wire (3) is snapped to the electrode sheet (4), or the electrode wire (3) is magnetically connected to the electrode sheet (4).

5. A multifunctional electrotherapy device according to any one of claims 1-3, characterized in that: The thickness of the outer layer (41) is greater than the thickness of the conductive layer (45).

6. A multifunctional electrotherapy device according to any one of claims 1-3, characterized in that: Along the thickness direction of the housing (1), the housing (1) includes an upper housing (11) and a lower housing (12) connected to each other. The upper shell (11) and the lower shell (12) enclose a cavity (13), and the main control board (2) is placed inside the cavity (13); At least one of the upper housing (11) or the lower housing (12) is provided with a through hole (14) for the electrode wire (3) to pass through, and the through hole (14) is connected to the cavity (13).

7. A multifunctional electrotherapy device according to claim 6, characterized in that: The adjustment key (6) is partially located inside the cavity (13); The adjustment key (6) is located on the outside of the housing (1).

8. A multifunctional electrotherapy device according to claim 6, characterized in that: The upper housing (11) or the lower housing (12) is provided with a fixing member (15), and the main control board (2) is provided with a fixing hole (21) corresponding to the fixing member (15).

9. A multifunctional electrotherapy device according to any one of claims 1-3, characterized in that: The outer surface of the housing (1) is provided with a groove (16) for fixing the display screen (5).

10. A multifunctional electrotherapy device according to claim 9, characterized in that: The thickness of the groove (16) is less than the thickness of the display screen (5).

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