Dual-head physiotherapy device

Abstract

This utility model provides a dual-head physiotherapy device, belonging to the field of physiotherapy technology. The dual-head physiotherapy device includes: a housing; a circuit board disposed within the housing; a first functional head disposed at one end of the housing and electrically connected to the circuit board to output EMS microcurrent; and a second functional head disposed parallel to the first functional head and electrically connected to the circuit board to output TENS pulse current. The dual-head physiotherapy device of this application embodiment can switch between EMS and TENS to meet the user's combined needs.

Description

Technical Field

[0001] This application belongs to the field of physiotherapy technology, and more specifically, relates to a dual-head physiotherapy device. Background Technology

[0002] With the accelerating pace of life and increased health awareness, portable and non-invasive electrophysiological therapy devices are gaining increasing attention. Among them, Electrical Muscle Stimulation (EMS) based on microcurrents and Transcutaneous Electrical Nerve Stimulation (TENS) based on pulses are two widely used technologies, used to relieve muscle fatigue and suppress pain signals, respectively. However, most devices currently on the market are still single-function, supporting only one stimulation mode of EMS or TENS, making it difficult to meet the complex needs of users in different physical states for muscle relaxation and pain relief.

[0003] Therefore, it is necessary to provide an improved physiotherapy device to solve the problem that existing single-function devices cannot meet the complex needs of users. Utility Model Content

[0004] This application provides a dual-head physiotherapy device that can switch between EMS and TENS to meet the user's diverse needs.

[0005] The technical solution adopted in this application embodiment is: to provide a dual-head physiotherapy device, including: case; The circuit board is disposed within the housing; A first functional head is disposed at one end of the housing and electrically connected to the circuit board to output an EMS microcurrent; and The second functional head is arranged in parallel with the first functional head and is electrically connected to the circuit board to output TENS pulse current.

[0006] Furthermore, a gripping electrode is fixedly provided on the outer surface of the housing; The first functional head has an exposed first conductive element, and the second functional head has an exposed second conductive element; The circuit board has an EMS micro-current output circuit and a TENS pulse current output circuit. The gripping electrode and the first conductive element are respectively connected to the two poles of the EMS microcurrent output circuit; the gripping electrode and the second conductive element are respectively connected to the two poles of the TENS pulse current output circuit.

[0007] Furthermore, the end of the second conductive element located outside the housing is converging and has a spherical protrusion, which is electrically connected to the second conductive element and is integrally formed.

[0008] Furthermore, the second functional head also includes a collar sleeved on the first functional head, and the outer periphery of the collar is recessed with an annular groove; The end wall of the housing has a through hole, and the inner ends of the second conductive element and the collar are inserted into the through hole. The edge of the through hole extends inward to form a surrounding L-shaped locking structure. The folded edge of the locking structure is inserted into the annular groove to achieve axial positioning of the collar.

[0009] Furthermore, the second functional head also includes a vibration generator, and the inner end of the second conductive element is recessed with a drive chamber. The vibration generator is installed in the drive chamber, and the vibration generator is connected to the second conductive element in a transmission manner and drives the second conductive element to vibrate.

[0010] Furthermore, the housing has an installation port corresponding to the position of the first functional head, the first functional head includes a fixing seat fixed to the installation port, and the first conductive element is fixedly disposed on the fixing seat.

[0011] Furthermore, the first functional head also includes a phototherapy light source, which is disposed on the side of the fixing base facing away from the first conductive element, and the fixing base has a light-transmitting area corresponding to the phototherapy light source.

[0012] Furthermore, the first functional head also includes a light-transmitting element, which covers the mounting opening located outside the fixed base. The light-transmitting element has a clearance hole for the first conductive element to pass through, and the working end face of the first conductive element is not lower than the outer surface of the light-transmitting element.

[0013] Furthermore, a function button is provided on the surface of the housing, and the function button is connected to the control switch on the circuit board.

[0014] Furthermore, the housing includes a gripping portion and a functional end located at one end of the gripping portion. The first functional head and the second functional head are arranged side by side at the functional end, making the housing as a whole Y-shaped. The gripping electrode has two pieces and is respectively arranged on two opposite sides of the gripping portion.

[0015] The beneficial effects of the dual-head physiotherapy device provided in this application embodiment are as follows: In the dual-head physiotherapy device of this application embodiment, a first functional head and a second functional head are arranged side by side at one end of the shell, and both functional heads are stably electrically connected to the circuit board inside the shell. The first functional head obtains EMS microcurrent output capability through electrical connection with the circuit board, while the second functional head realizes TENS pulse current output through electrical connection with the circuit board. Through the structure of two parallel functional heads, the device simultaneously possesses both muscle electrical stimulation and transcutaneous electrical nerve stimulation functions. When the user's muscles are fatigued, they can use the first functional head for EMS relaxation, and when the body is in pain, they can switch to the second functional head for TENS relief. This allows the device to meet the physiotherapy needs of different physical states without changing the device, effectively solving the limitations of single-function devices and meeting the user's complex physiotherapy needs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A three-dimensional structural diagram of the dual-head physiotherapy device provided in the embodiments of this application; Figure 2 An exploded view of the dual-head physiotherapy device provided in the embodiments of this application; Figure 3 A top view of the dual-head physiotherapy device provided in the embodiments of this application; Figure 4 For along Figure 3 Sectional view of AA; Figure 5 for Figure 4 Place point B in the view.

[0018] The following are the labeling elements in the figure: 10. Housing; 11. Holding electrode; 12. Through hole; 13. Locking structure; 14. Mounting port; 15. Holding part; 16. Functional end; 20. Circuit board; 21. Control switch; 30. First functional head; 31. First conductive component; 32. Fixing base; 33. Phototherapy light source; 34. Light-transmitting area; 35. Light-transmitting component; 36. Clearance hole; 40. Second functional head; 41. Second conductive component; 42. Spherical protrusion; 43. Collar; 44. Annular groove; 45. Vibration generator; 46. Drive chamber; 50. Function buttons. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0020] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0021] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0023] Please see Figure 1 and Figure 2 The dual-head physiotherapy device provided in the embodiments of this application will now be described. The dual-head physiotherapy device provided in the embodiments of this application includes a housing 10, a circuit board 20, a first functional head 30, and a second functional head 40.

[0024] The housing 10 is the external support structure of the dual-head physiotherapy device and can be made of lightweight, insulating materials, such as ABS plastic. The housing 10 provides protection for the internal components and makes it easy for the user to hold.

[0025] Reference Figure 2 The circuit board 20 is located inside the housing 10 and is electrically connected to external functional components through wires or connectors. It integrates power management modules, control chips, etc., and can output EMS micro current and TENS pulse current.

[0026] Reference Figure 1 and Figure 2The first functional head 30 is located at one end of the housing 10 and is electrically connected to the circuit board 20 to output EMS microcurrent. The first functional head 30 can be designed as a circular or elliptical protruding structure for easy skin contact. The first functional head 30 is electrically connected to the circuit board 20 inside the housing 10 via a wire, and the output EMS microcurrent is transmitted to the human body to stimulate muscle contraction and relieve muscle fatigue.

[0027] Reference Figure 1 and Figure 2 The second functional head 40 is arranged side-by-side with the first functional head 30 and electrically connected to the circuit board 20 to output TENS pulse current. The second functional head 40 and the first functional head 30 are kept at a certain distance to avoid mutual interference. Their shapes may be similar to or slightly different from the first functional head 30, distinguishable by shape, color, or markings. The second functional head 40 is electrically connected to the circuit board 20 via wires, and the output TENS pulse current acts on nerve endings to inhibit pain signal transmission.

[0028] In use, the user holds the housing 10 and applies the first functional head 30 or the second functional head 40 to the area requiring physiotherapy. When the first functional head 30 is in contact with the body, the EMS mode is activated, and the circuit board 20 generates an EMS microcurrent, which is transmitted to the first functional head 30 through wires, causing it to output an EMS microcurrent to the muscle tissue, inducing rhythmic muscle contraction, thereby relaxing muscles and relieving fatigue. When the second functional head 40 is in contact with the body, the TENS mode is switched, and the circuit board 20 switches to output a pulse current, blocking the transmission of pain signals to the central nervous system, thus achieving an analgesic effect. This embodiment integrates two parallel functional heads on the same device, both connected to the internal circuit board 20, allowing the device to quickly switch between two physiotherapy modes, meeting the user's combined needs for muscle relaxation and pain relief without requiring device replacement.

[0029] Reference Figure 1 and Figure 2 A grip electrode 11 is fixedly provided on the outer surface of the housing 10. The grip electrode 11 is a conductive component provided on the outer surface of the housing 10. It can be made of metal sheet or conductive silicone. Its position corresponds to the area that the user's palm or fingers contact when holding the device. Its shape can be designed as a strip or a sheet according to the grip posture to ensure stable contact with the skin when the user holds it.

[0030] Reference Figure 1 and Figure 4The first functional head 30 has an exposed first conductive element 31, and the second functional head 40 has an exposed second conductive element 41. The first conductive element 31 can be made of copper, stainless steel, or conductive gel, and can be embedded in the end face of the first functional head 30, so as to efficiently conduct EMS microcurrent when in contact with the skin. The second conductive element 41 is made of a similar material to the first conductive element 31, and is disposed on the end face of the second functional head 40, so as to transmit the TENS pulse current from the second functional head 40 to the human skin.

[0031] The circuit board 20 has an EMS micro-current output circuit and a TENS pulse current output circuit. The gripping electrode 11 and the first conductive element 31 are respectively connected to the two poles of the EMS micro-current output circuit; the gripping electrode 11 and the second conductive element 41 are respectively connected to the two poles of the TENS pulse current output circuit.

[0032] The EMS microcurrent output circuit is a dedicated circuit module on circuit board 20 for generating and outputting EMS signals. It includes a waveform generator and current regulator, and can generate low-frequency, low-intensity microcurrents. Its two poles are connected to the holding electrode 11 and the first conductive element 31 via wires, forming a complete current loop. Similarly, the TENS pulse current output circuit is a circuit module on circuit board 20 responsible for the TENS function. It can generate pulse signals of specific frequency and intensity. Its two poles are also connected to the holding electrode 11 and the second conductive element 41, using the human body as a conductor to form a current path. Specifically, EMS stands for Electrical Muscle Stimulation, and TENS stands for Transcutaneous Electrical Nerve Stimulation.

[0033] When using EMS mode, the user holds the housing 10 with their palm in contact with the grip electrode 11, while simultaneously placing the first conductive element 31 of the first functional head 30 against the target muscle. The EMS microcurrent output circuit forms a closed loop through the connection to the human body, thereby outputting an EMS microcurrent to the human body. When using TENS mode, the user maintains the gripping posture and aligns the second conductive element 41 of the second functional head 40 with the painful area. The TENS pulse current output circuit forms a closed loop through the connection to the human body, thereby outputting a TENS pulse current to the human body.

[0034] This design in the embodiment of the application simplifies the device structure by using the shared grip electrode 11 as the common electrode of the two circuits, while ensuring that the current loop can be stably formed in both modes, improving the ease of operation and the reliability of the physiotherapy effect, and further optimizing the practicality of dual-mode switching.

[0035] Reference Figure 1 , Figure 3 and Figure 4The second conductive element 41 is located outside the housing 10. One end of it is converging and has a spherical protrusion 42. The spherical protrusion 42 is electrically connected to the second conductive element 41 and is integrally formed.

[0036] The second conductive element 41 can be made of biocompatible and highly conductive materials, such as pure copper, titanium alloy, or conductive ceramics. One end is embedded inside the housing 10 and electrically connected to the TENS pulse current output circuit of the circuit board 20, while the other end extends outside the housing 10 for direct contact with human skin to transmit current. The converging structure refers to the shape of the second conductive element 41 located outside the housing 10, with a gradually narrowing cross-section from the root connected to the housing 10 towards the end, resembling a "cone" or "frustum" transition structure. This design reduces the abruptness of contact between the conductive element and the skin, and guides the current towards the end, increasing the local current density, making it suitable for applications where the pain area is often small. The spherical protrusion 42 is a protruding structure at the end of the second conductive element 41, integrally formed with it to ensure uninterrupted conductive continuity. The spherical protrusion 42 has a smooth hemispherical or partially spherical shape, facilitating precise application to painful areas such as joint gaps and around acupoints, while avoiding current dispersion caused by large-area contact. In addition, the smooth spherical surface with 42 protrusions can reduce friction with the skin. Compared with sharp-edged planes or pointed structures, the spherical surface has no sharp edges, which can effectively reduce the risk of skin redness, breakage and other damage.

[0037] Reference Figure 2 and Figure 4 The second functional head 40 also includes a collar 43 sleeved on the first functional head 30, with an annular groove 44 recessed on its outer circumference. The annular groove 44 is an annular groove structure machined on the outer circumference of the collar 43, and the annular groove 44 surrounds the outer circumference of the inner end of the second conductive element 41. The collar 43 is sleeved on the second functional head 40 and does not affect the conductivity of the second conductive element 41; it only serves as a positioning and limiting structure during assembly.

[0038] A through hole 12 is provided on the end wall of the housing 10. The inner ends of the second conductive element 41 and the collar 43 are inserted into the through hole 12. The edge of the through hole 12 extends inward to form a surrounding L-shaped locking structure 13. The folded edge of the locking structure 13 is inserted into the annular groove 44 to achieve axial positioning of the collar 43.

[0039] Reference Figure 4 The through hole 12 is opened on the end wall of the housing 10 for installing the second functional head 40. Since the housing 10 is designed to be split into two halves, such as the left half and the right half, the two halves are spliced ​​together by snaps or screws. The through hole 12 is also split into "half holes" as the housing 10 is split. There is an arc-shaped half hole on the end wall of the left half and the end wall of the right half. When the two halves of the housing 10 are closed, the two half holes are spliced ​​together to form a complete circular through hole 12.

[0040] Reference Figure 4 The L-shaped locking structure 13 on the end wall is a non-elastic locking structure integrally formed by stamping or injection molding around the through hole 12 on the end wall of the housing 10. When the housing 10 is split, it is divided into two parts. The left half of the end wall and the right half of the end wall each form a "semi-circular L-shaped structure" around the through hole 12. When the housing 10 is closed, the two parts are combined to form a complete L-shaped locking structure 13 that surrounds the through hole 12. Its cross-section is "L"-shaped, including a vertical section that is perpendicular to the end wall and a bent part that extends horizontally towards the center of the through hole 12. The thickness of the bent part is adapted to the groove width of the annular groove 44 of the second conductive element 41, and the length ensures that it can be completely locked into the annular groove 44. During assembly, first, align the inner end of the second conductive element 41 with the semi-through hole 12 of one half of the housing 10 and insert it, so that the annular groove 44 on the outer circumference of the collar 43 corresponds to the position of the semi-circular locking structure 13 of the half-shell. Then, fasten the other half of the housing 10. At this time, the semi-through holes 12 of the two half-shells 10 are combined to form a complete through hole 12, and the two semi-circular locking structures 13 are also combined to form a complete L-shaped locking structure 13 around the through hole 12. Its folded edge fits precisely into the annular groove 44 of the second conductive element 41. Through this structural cooperation, the collar 43 is axially limited to prevent axial displacement during use. The second conductive element 41 can be extended and retracted within the collar 43 to accommodate the vibration function.

[0041] In some preferred embodiments, refer to Figure 4 The second functional head 40 also includes a vibration generator 45. A drive chamber 46 is recessed at the inner end of the second conductive element 41, and the vibration generator 45 is installed inside the drive chamber 46. The vibration generator 45 is connected to the second conductive element 41 and drives the second conductive element 41 to vibrate. The vibration generator 45 can be a miniature eccentric motor or a piezoelectric vibrator, and is cylindrical or flat in shape, with a small size to fit the installation space of the drive chamber 46. The vibration generator 45 is electrically connected to the circuit board 20 inside the housing 10 via wires, and can receive control signals output from the circuit board 20 to realize vibration start / stop and adjustment of vibration intensity and frequency. The drive chamber 46 at the inner end of the second conductive element 41 is a cylindrical or square cavity structure formed by a recess in one end face or side of the second conductive element 41 embedded inside the housing 10. The size of the cavity precisely matches the shape of the vibration generator 45, ensuring that the vibration generator 45 can be tightly embedded in the chamber without significant shaking. The drive chamber 46 serves as the mounting carrier for the vibration generator 45. After the vibration generator 45 is embedded, its outer shell or output end is tightly fitted to the inner wall of the drive chamber 46, or connected by interference fit or adhesive fixation, to ensure that the vibration energy is efficiently transmitted to the second conductive element 41.

[0042] In TENS mode, if the user selects to enable the vibration function, the circuit board 20 will simultaneously output a drive signal to the vibration generator 45 and a pulse current to the TENS pulse current output circuit. Upon receiving the signal, the eccentric rotor inside the vibration generator 45 begins to rotate (or the piezoelectric element begins to extend or retract), generating mechanical vibration that drives the second conductive element 41 to vibrate as a whole. This vibration is simultaneously transmitted to the spherical protrusion 42 at the outer end of the second conductive element 41. At this time, when the user places the spherical protrusion 42 against the painful area, they will simultaneously experience two therapeutic effects: TENS pulse current and vibration massage. The TENS pulse current acts on nerve endings through the spherical protrusion 42, blocking pain signal transmission. The vibration promotes local blood circulation, relieves muscle tension, and simultaneously distracts from the perception of pain through tactile stimulation, forming a synergistic effect of "electrotherapy + physical massage."

[0043] Reference Figure 2 and Figure 4 The housing 10 has an installation port 14 at the position corresponding to the first functional head 30. The first functional head 30 includes a fixing seat 32 fixed to the installation port 14, and the first conductive element 31 is fixedly disposed on the fixing seat 32.

[0044] Reference Figure 2 and Figure 4 The mounting port 14 is formed on the end wall of the housing 10 for mounting the first functional head 30. The shape of the opening is adapted to the shape of the first functional head 30 fixing seat 32, and can be circular, square or elliptical. The edge of the mounting port 14 may be designed with steps or positioning grooves for radial positioning of the fixing seat 32 to prevent the fixing seat 32 from shifting or shaking after installation.

[0045] Reference Figure 2 and Figure 4 The mounting base 32 has a block or disc-shaped structure, and its shape and size perfectly match the mounting opening 14 of the housing 10, allowing it to be tightly embedded in the mounting opening 14. The mounting base 32 can be fixed in the mounting opening 14 by snap-fit ​​connection, interference fit, or screw fastening. The outer surface of the mounting base 32 can be designed to be flush with or slightly protruding from the end wall of the housing 10 to ensure the overall appearance of the equipment. The mounting base 32 has pre-drilled holes or slots for installing the first conductive component 31, and can also have wire channels inside to facilitate the establishment of an electrical connection between the first conductive component 31 and the circuit board 20 inside the housing 10.

[0046] The first conductive element 31 can be in the form of a sheet, column, or ring. It is installed in the reserved hole or slot of the fixing base 32 by means of embedding, bonding, or screw fixing. Its outer surface is exposed to facilitate contact with the skin, and its inner end is electrically connected to the EMS micro-current output circuit of the circuit board 20 through the wire channel of the fixing base 32 via a wire, so as to ensure that the current can be stably conducted.

[0047] The fit between the mounting port 14 of the housing 10 and the fixing base 32 ensures the installation stability of the first functional head 30, preventing the first conductive element 31 from shifting due to collision or pressing during use, thereby ensuring the continuity and stability of the EMS microcurrent output. The insulating material of the fixing base 32 effectively isolates the first conductive element 31 from the housing 10, preventing current leakage and improving safety during use.

[0048] In some preferred embodiments, refer to Figure 2 , Figure 4 and Figure 5 The first functional head 30 also includes a phototherapy light source 33, which is located on the side of the mounting base 32 facing away from the first conductive element 31. The mounting base 32 has a light-transmitting area 34 corresponding to the phototherapy light source 33. The phototherapy light source 33 can use low-power LED beads, such as red LEDs with wavelengths of 620nm-660nm, blue LEDs with wavelengths of 460nm-480nm, or composite LEDs with multiple wavelengths. The phototherapy light source 33 has a small cylindrical or surface-mount structure to fit the installation space on the back of the mounting base 32. The phototherapy light source 33 is electrically connected to the circuit board 20 inside the housing 10 via wires. It can receive drive signals output by the circuit board 20 to start / stop and adjust brightness. Its main function is to emit light radiation of a specific wavelength, which acts on human skin and subcutaneous tissue to help achieve therapeutic effects such as anti-inflammatory effects, promoting blood circulation, or relieving muscle soreness.

[0049] Reference Figure 2 , Figure 4 and Figure 5 The light-transmitting area 34 of the fixing base 32 is a light-transmitting structure extending from the side of the fixing base 32 away from the first conductive member 31 to the side facing the first conductive member 31. For example, a circular or square light-transmitting hole can be opened in the fixing base 32 at the position corresponding to the phototherapy light source 33, or the fixing base 32 can be made entirely of transparent or semi-transparent insulating material (such as transparent PC plastic) to directly form a large area of ​​light-transmitting area 34. The setting of the light-transmitting area 34 can ensure that the light emitted by the phototherapy light source 33 can penetrate the fixing base 32 without obstruction and be transmitted to the skin surface on the outside of the first functional head 30.

[0050] When the user activates EMS mode and selects to turn on phototherapy, the user places the first conductive element 31 against the muscle area. The current forms a circuit through "circuit board 20 - first conductive element 31 - human body - holding electrode 11 - circuit board 20", causing rhythmic muscle contraction to relieve fatigue. At the same time, the phototherapy light source 33 is activated and emits light of a specific wavelength. The light passes through the light-transmitting area 34 of the fixing base 32 and directly irradiates the skin area where the first conductive element 31 is attached. The light radiation acts on the subcutaneous tissue, forming a synergistic effect of "electrotherapy + phototherapy" with the electrical stimulation of EMS.

[0051] Reference Figure 2 , Figure 4 and Figure 5 The first functional head 30 also includes a light-transmitting element 35. The light-transmitting element 35 covers the mounting opening 14 located outside the fixing base 32. The light-transmitting element 35 has a clearance hole 36 for the first conductive element 31 to pass through, and the working end face of the first conductive element 31 is not lower than the outer surface of the light-transmitting element 35. The light-transmitting element 35 can be made of a high-transmittance insulating material, such as transparent acrylic, high borosilicate glass, or food-grade transparent silicone. The light-transmitting element 35 has a sheet-like or disc-like structure. The light-transmitting element 35 is fixed to the outside of the mounting opening 14 by bonding, snap-fitting, or screw pressing, covering the gap between the fixing base 32 and the mounting opening 14. This prevents dust, moisture, or foreign objects from entering the housing 10 without blocking the light from the phototherapy light source 33, thus improving the durability and safety of the device.

[0052] The aperture of the clearance hole 36 in the light-transmitting element 35 is precisely matched with the outer diameter of the first conductive element 31, ensuring that the first conductive element 31 can smoothly pass through the through hole and fit tightly after passing through, preventing dust accumulation in the gaps. The number of clearance holes 36 is the same as the number of first conductive elements 31. If the first conductive element 31 is a single columnar structure, the clearance hole 36 is a single circular hole; if it is multiple sheet-like structures, the clearance hole 36 is designed to be multiple. The working end face of the first conductive element 31 is not lower than the outer surface of the light-transmitting element 35, ensuring that the first conductive element 31 can stably maintain contact with the skin after passing through the clearance hole 36.

[0053] Preferably, refer to Figure 1 and Figure 2 The housing 10 has a function button 50 on its surface, which is connected to the control switch 21 on the circuit board 20. The function button 50 is positioned on the outer surface of the housing 10 for easy gripping and operation, making it convenient for the user. The bottom of the function button 50 has a guide post or contact point, corresponding to the control switch 21 inside the housing 10. When pressed, it physically actuates the control switch 21; when released, it springs back to its initial position due to its own elasticity or a return spring.

[0054] Reference Figure 2The control switch 21 on circuit board 20 is a component that receives operation signals from function button 50 and transmits them to the control chip of circuit board 20. It can be a tactile switch, membrane switch, or micro switch, and is soldered and fixed to the surface of circuit board 20. Its position is precisely aligned with the guide post or contact of function button 50 on housing 10 to ensure accurate triggering when the button is pressed. The pins of control switch 21 are electrically connected to the control circuit of circuit board 20. When triggered by the button, it changes the on / off state of the circuit, thereby controlling the start / stop or parameter adjustment of the corresponding function, such as switching EMS / TENS mode, increasing or decreasing current intensity, or turning on light therapy or vibration. In addition, circuit board 20 is also equipped with multiple indicator lights to indicate different functional states. Different indicator lights correspond to different functions. When the corresponding function is activated, the corresponding indicator light is lit; when the function is not activated, the corresponding indicator light is not lit.

[0055] In some preferred embodiments, refer to Figure 1 and Figure 2 The housing 10 includes a gripping part 15 and a functional end 16 located at one end of the gripping part 15. A first functional head 30 and a second functional head 40 are arranged side by side on the functional end 16, making the housing 10 as a whole Y-shaped. The gripping electrode 11 has two pieces and is respectively arranged on two opposite sides of the gripping part 15.

[0056] The grip portion 15 of the housing 10 can be designed as an ergonomic elongated structure, and the outer surface can be frosted or have anti-slip textures. Sufficient space is reserved inside the grip portion 15 for installing core components such as the circuit board 20 and the battery, while the buttons can be located on the side or top of the grip portion 15 according to the operation requirements of the function buttons 50, ensuring that the user's fingers can naturally contact them when holding the grip.

[0057] The functional end 16 of the housing 10 is connected to one end of the gripping part 15. Its end wall needs to be provided with a mounting port 14 for the first functional head 30 and a through hole 12 for the second functional head 40 to provide a mounting carrier for the dual functional heads, forming a Y-shaped structure. The gripping part 15 serves as the vertical part of the "Y", and the functional end 16 serves as the forked part of the "Y".

[0058] The two gripping electrodes 11 are conductive components used to form a current loop. They are designed as long strips or arc-shaped pieces that fit the sides of the gripping part 15. They are fixed to the two opposite sides of the gripping part 15 by adhesive, snaps, or screws. The outer surface is exposed to facilitate contact with the skin for conductivity. The inner end is connected to the EMS micro-current output circuit and TENS pulse current output circuit of the circuit board 20 through wires to ensure that the user's palm can contact both electrodes at the same time, or at least one electrode, to form a loop through the body when gripping.

[0059] When using the device, the user holds the grip part 15 of the housing 10 with one hand, and the palm naturally rests on the two grip electrodes 11 on the side of the grip part 15, or at least one electrode is in contact with the palm. The fingers can naturally reach the function button 50, and the two function heads of the function end 16 are aligned with the area that needs physiotherapy. At the same time, the light therapy or vibration function can be turned on as needed.

[0060] Preferably, a battery may also be installed inside the grip portion 15 to power the circuit board 20 and the two functional heads. A rechargeable battery is preferred, and a corresponding rechargeable interface, such as Type-C, Micro-USB, Lightning, USB-A, or USB-PD, is provided on the housing 10.

[0061] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A dual-head physiotherapy device, characterized in that, include: case; The circuit board is disposed within the housing; The first functional head is located at one end of the housing and is electrically connected to the circuit board to output EMS microcurrent; as well as The second functional head is arranged in parallel with the first functional head and is electrically connected to the circuit board to output TENS pulse current.

2. The dual-head physiotherapy device according to claim 1, characterized in that, The outer surface of the housing is fixedly provided with a gripping electrode; The first functional head has an exposed first conductive element, and the second functional head has an exposed second conductive element; The circuit board has an EMS micro-current output circuit and a TENS pulse current output circuit. The gripping electrode and the first conductive element are respectively connected to the two poles of the EMS microcurrent output circuit; the gripping electrode and the second conductive element are respectively connected to the two poles of the TENS pulse current output circuit.

3. The dual-head physiotherapy device according to claim 2, characterized in that, The second conductive element has a converging end located outside the housing and is provided with a spherical protrusion. The spherical protrusion is electrically connected to the second conductive element and is integrally formed.

4. The dual-head physiotherapy device according to claim 2, characterized in that, The second functional head also includes a collar sleeved on the first functional head, and the outer periphery of the collar is recessed with an annular groove; The end wall of the housing has a through hole, and the inner ends of the second conductive element and the collar are inserted into the through hole. The edge of the through hole extends inward to form a surrounding L-shaped locking structure. The folded edge of the locking structure is inserted into the annular groove to achieve axial positioning of the collar.

5. The dual-head physiotherapy device according to claim 2, characterized in that, The second functional head also includes a vibration generator. The inner end of the second conductive element is recessed with a drive chamber. The vibration generator is installed in the drive chamber. The vibration generator is connected to the second conductive element and drives the second conductive element to vibrate.

6. The dual-head physiotherapy device according to claim 2, characterized in that, The housing has an installation port corresponding to the position of the first functional head. The first functional head includes a fixing seat fixed to the installation port, and the first conductive element is fixedly disposed on the fixing seat.

7. The dual-head physiotherapy device according to claim 6, characterized in that, The first functional head also includes a phototherapy light source, which is disposed on the side of the fixing base facing away from the first conductive element, and the fixing base has a light-transmitting area corresponding to the phototherapy light source.

8. The dual-head physiotherapy device according to claim 7, characterized in that, The first functional head also includes a light-transmitting element, which covers the mounting opening located outside the fixed base. The light-transmitting element has a clearance hole for the first conductive element to pass through, and the working end face of the first conductive element is not lower than the outer surface of the light-transmitting element.

9. The dual-headed physiotherapy device according to claim 1, characterized in that, The housing surface is provided with function buttons, which are kinetically connected to the control switch on the circuit board.

10. The dual-head physiotherapy device according to claim 1, characterized in that, The housing includes a gripping portion and a functional end located at one end of the gripping portion. The first functional head and the second functional head are arranged side by side at the functional end, making the housing as a whole Y-shaped. The gripping electrode has two pieces and is respectively arranged on two opposite sides of the gripping portion.

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