A low-frequency therapeutic device

Abstract

The present invention discloses a low-frequency therapeutic device, which relates to the field of rehabilitation and physical therapy technology and includes a main unit and an adsorption bowl. The present invention solves the problem of weak or no adsorption on uneven parts such as shoulders, elbows, and knees by using negative pressure adsorption in a first negative pressure channel provided by the adsorption bowl. Then, the device switches to negative pressure adsorption in a second negative pressure channel by switching the air path device. The adsorption bowl uses double adsorption through the first negative pressure channel and the second negative pressure channel, making the adsorption more reliable. The inner layer adsorption bowl isolates the water-absorbing elastic member from the first annular cavity, so that the negative pressure airflow does not absorb or dry the moisture of the water-absorbing elastic member through the second negative pressure channel. Even if long-term treatment is performed, the water-absorbing elastic member can remain moist, having good conductivity and uniform contact with the skin. The water-absorbing elastic member is also prevented from entering the negative pressure pipeline, thereby avoiding the problem of a humid environment in the pipeline that may breed bacteria or mold and cause infection during treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of rehabilitation physiotherapy, and in particular to a low-frequency therapeutic apparatus. Background Art

[0002] A low-frequency therapy device is a type of rehabilitation and physical therapy equipment that primarily uses low-frequency electrical current to stimulate the body's nerves, muscles, and other tissues to treat illnesses or alleviate symptoms. Low-frequency therapy devices widely utilize suction cups for adsorption and electrical stimulation. The device works by pumping air into the suction cups to create a negative pressure, then attaching electrodes to the treatment area. The electrodes within the suction cups contact a damp absorbent sponge, which then contacts the body. The paired suction cups form an electrical circuit, providing electrical stimulation, rehabilitation, and negative pressure cupping therapy.

[0003] Chinese patent application number 202222729909.3 discloses a suction bowl and rehabilitation device, comprising: a suction bowl body, an air output interface, and a control module; wherein the air output interface is used to connect to a negative pressure exhaust pipeline; the control module is installed at the bottom of the suction bowl body and is in communication with the device host. The control module includes an input module for receiving control commands for the suction bowl body and a display module for displaying the working status of the suction bowl body. The control modules for controlling the control commands of the suction bowl body and displaying the working status of the suction bowl body are fixed to the bottom of the suction bowl body. However, although this invention makes it easy for users to adjust and check the working status of the adsorption bowl by themselves without having to get up and go to the main device to adjust and check, it effectively reduces the risk of the adsorption bowl falling off and improves safety. Users can use the adsorption bowl by themselves without the help of others, which enhances the user experience. However, there is still a problem that it can only adsorb flat parts such as the back, and it is not strong or cannot adsorb on uneven parts such as shoulders, elbows, and knees. There is also the problem that after long-term treatment, the moisture of the water-absorbing sponge is partially absorbed or dried, resulting in reduced conductivity or poor skin contact, and it is difficult for the current to be effectively conducted from the electrode to the human skin. Or when the electrode cannot contact the skin evenly, the current may be concentrated in some small areas with good contact, which can easily cause local skin tingling or burning. There is also the problem that when water enters the negative pressure pipeline, the humid environment in the pipeline will breed bacteria or mold, causing treatment infection.

[0004] Therefore, the present invention proposes a low-frequency therapeutic apparatus to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a low-frequency therapeutic device to solve the technical problems raised in the above-mentioned background technology, such as poor or no adsorption on uneven parts, reduced conductivity or poor skin contact after partial absorption or drying of moisture, and infection caused by the growth of bacteria or mold in negative pressure pipelines.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a low-frequency therapeutic device, comprising: a main unit and an adsorption bowl, wherein the main unit includes a housing, a vacuum pumping and voltage stabilizing component is disposed inside the housing, the vacuum pumping and voltage stabilizing component is connected to an output port disposed on the front side of the housing via a conductive air pipe, and the output port is connected to the adsorption bowl via a conductive air pipe;

[0007] The adsorption bowl includes a surface adsorption bowl, which is provided with a first negative pressure channel and a second negative pressure channel, and a switching air path device is provided between the first negative pressure channel and the second negative pressure channel. An inner adsorption bowl coaxial with the surface adsorption bowl is provided in the surface adsorption bowl cavity, and a first annular cavity is provided on the outside of the inner adsorption bowl and the inside of the surface adsorption bowl. An electrode component is fixedly connected to the top of the inner adsorption bowl cavity, and a water-absorbing elastic component is attached to the bottom of the electrode component.

[0008] Preferably, the first negative pressure channel includes a first air guide hole, which is formed on the side wall of the surface adsorption bowl. There are multiple first air guide holes, and the multiple first air guide holes are evenly distributed along the axial direction of the surface adsorption bowl. The top of the first air guide hole is provided with an annular hole connected to it, and the tops of the multiple first air guide holes are all connected to the annular hole. A third air guide hole is provided at the top of the annular hole, and a first avoidance hole is provided in the middle of the third air guide hole.

[0009] Preferably, the second negative pressure channel includes a fourth air guide hole, a second avoidance hole is opened in the middle of the fourth air guide hole, the top of the fourth air guide hole is connected with the third air guide hole, a fifth air guide hole is opened at the bottom of the fourth air guide hole, both ends of the fifth air guide hole are connected with the first annular cavity, the second avoidance hole is concentric with the first avoidance hole, and the surface adsorption bowl is provided with a sealed cavity concentric with the first avoidance hole and the second avoidance hole.

[0010] Preferably, the switching air path device includes a switching valve core, which is slidably connected in the sealed cavity. The bottom end of the switching valve core is connected to the bottom end of the sealed cavity by an elastic member. The bottom end of the sealed cavity is provided with a sixth air guide hole connected to the third air guide hole, and the middle section of the switching valve core is provided with a first air vent and a second air vent.

[0011] Preferably, the vacuum pumping and pressure stabilizing assembly includes an air pump, an exhaust valve, a drain valve, a silencer box, a gas buffer box, a water container, and an air pressure sensor.

[0012] Preferably, the bottom of the shell is fixedly connected to a chassis, the bottom end of the chassis is fixedly connected to a plurality of casters, the top of the shell is fixedly connected to a touch display component, and the front side of the shell is slidably connected to a drawer.

[0013] Preferably, the conductive air tube includes an air tube and a wire arranged inside the air tube.

[0014] Preferably, a push handle is provided on the rear side of the shell, heat dissipation holes are provided on both sides of the shell, and a control component is provided inside the shell, and the control component includes a control circuit, an air pump control circuit, and a pressure detection control circuit.

[0015] Preferably, the diameter of the switching valve core is larger than the diameters of the third air guide hole and the fourth air guide hole.

[0016] Preferably, the bottom end of the inner adsorption bowl is provided with an inverted rib, and the water-absorbing elastic member is clamped in the cavity of the inner adsorption bowl through the rib.

[0017] The beneficial effects of the present invention are:

[0018] 1. The present invention solves the problem of weak or no adsorption on uneven parts such as shoulders, elbows, and knees by setting up negative pressure adsorption in the first negative pressure channel. Then, by switching the air path device to the second negative pressure channel negative pressure adsorption, the adsorption bowl is doubly adsorbed by the first negative pressure channel and the second negative pressure channel, making the adsorption more reliable.

[0019] 2. The present invention isolates the water-absorbing elastic member from the first annular cavity by providing an inner adsorption bowl, so that the negative pressure airflow will not absorb or dry the moisture of the water-absorbing elastic member through the second negative pressure channel. Even if long-term treatment is performed, the water-absorbing elastic member can remain moist, so that it has good conductivity and uniform contact with the skin, so that the current is effectively conducted from the electrode to the human skin. The current will not be concentrated in certain small areas with good contact to cause local skin tingling or burning sensation, thereby ensuring the treatment effect and safety, and also avoiding the moisture of the water-absorbing elastic member from entering the negative pressure pipeline, thereby avoiding the problem of the humid environment in the pipeline breeding bacteria or mold causing treatment infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the host structure of the present invention.

[0022] Figure 3 This is a cross-sectional view of the adsorption bowl structure.

[0023] Figure 4 This is a cross-sectional view of the first negative pressure channel structure of the present invention.

[0024] Figure 5 This is a cross-sectional view of the second negative pressure channel structure of the present invention.

[0025] Figure 6 This is an exploded view of the structure of the gas path switching device of this engine.

[0026] Figure 7 for Figure 4 A local enlarged schematic diagram in the A direction.

[0027] Figure 8 for Figure 5 A partial enlarged schematic diagram in the B direction.

[0028] Figure 9 This is a schematic diagram of the host vacuum and voltage stabilization system of the present invention.

[0029] Figure 10 This is the control circuit diagram of the main controller of the present invention.

[0030] Figure 11 This is the control circuit diagram of the air pump of the present invention.

[0031] Figure 12 This is the pressure detection control circuit diagram of the present invention.

[0032] The accompanying drawings are marked as follows: 1. Main unit; 11. Housing; 12. Vacuuming and voltage stabilizing component; 121. Air pump; 122. Silencer box; 123. Gas buffer box; 124. Water container; 13. Output port; 14. Chassis; 15. Touch display component; 16. Drawer; 17. Push handle; 18. Electrotherapy control module; 181. Electrotherapy output unit; 2. Adsorption bowl; 21. Surface adsorption bowl; 22. First negative pressure channel; 221. First air guide hole; 222. Annular hole; 223 , third air guide hole; 224, first avoidance hole; 23, second negative pressure channel; 231, fourth air guide hole; 232, second avoidance hole; 233, fifth air guide hole; 234, sealing chamber; 235, sixth air guide hole; 24, switching air path device; 241, switching valve core; 2411, first air vent; 2412, second air vent; 242, elastic part; 25, inner adsorption bowl; 251, retaining edge; 26, electrode part; 27, water-absorbing elastic part; 28, first annular cavity. DETAILED DESCRIPTION

[0033] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0034] In actual use, this embodiment is specially invented to solve the problems of poor or no adsorption on uneven parts, reduced conductivity or poor skin contact after moisture is absorbed or dried up, and infection caused by the growth of bacteria or mold in the negative pressure pipeline.

[0035] See also Figures 1 to 12 As shown, it includes: a host 1, an adsorption bowl 2, the host 1 includes a shell 11, a vacuum voltage stabilizing component 12 is arranged inside the shell 11, the vacuum voltage stabilizing component 12 is connected to the output port 13 arranged on the front side of the shell 11 through a conductive air pipe, the output port 13 is connected to the adsorption bowl 2 through a conductive air pipe, the conductive air pipe includes an air pipe and a wire arranged inside it, the adsorption bowl 2 includes a surface adsorption bowl 21, the surface adsorption bowl 21 is provided with a first negative pressure channel 22 and a second negative pressure channel 23, and a cut-out is arranged between the first negative pressure channel 22 and the second negative pressure channel 23. The ventilation path device 24, the surface adsorption bowl 21 cavity is provided with an inner adsorption bowl 25 coaxial with it, the outer side of the inner adsorption bowl 25 and the inner side of the surface adsorption bowl 21 are provided with a first annular cavity 28, the top of the inner adsorption bowl 25 cavity is fixedly connected to the electrode member 26, the bottom end of the electrode member 26 is fitted with a water-absorbing elastic member 27, the water-absorbing elastic member 27 is generally a water-absorbing sponge, the bottom end of the inner adsorption bowl 25 is provided with an inward-turned retaining edge 251, the water-absorbing elastic member 27 is clamped in the cavity of the inner adsorption bowl 25 through the retaining edge 251 so that it is tightly fitted with the electrode member 26.

[0036] See also Figure 2 As shown, a drawer 16 is slidably connected to the front side of the shell 11 for storing accessories; a handle 17 is provided on the rear side of the shell 11, and a chassis 14 is fixedly connected to the bottom of the shell 11. A plurality of casters are fixedly connected to the bottom end of the chassis 14 for easy movement; heat dissipation holes are provided on both sides of the shell 11 for heat dissipation of the equipment, and a touch display component 15 is fixedly connected to the top of the shell 11 for setting the treatment prescription and adsorption pressure. A control component is provided inside the shell 11.

[0037] See also Figure 4 As shown, the first negative pressure channel 22 includes a first air guide hole 221, which is formed on the side wall of the surface adsorption bowl 21. There are multiple first air guide holes 221, and the multiple first air guide holes 221 are evenly distributed along the axial direction of the surface adsorption bowl 21. The top of the first air guide hole 221 is provided with an annular hole 222 connected to it, and the tops of the multiple first air guide holes 221 are all connected to the annular hole 222. A third air guide hole 223 is provided at the top of the annular hole 222, and a first avoidance hole 224 is provided in the middle of the third air guide hole 223.

[0038] See also Figure 5 As shown, the second negative pressure channel 23 includes a fourth air guide hole 231, a second avoidance hole 232 is opened in the middle of the fourth air guide hole 231, the top of the fourth air guide hole 231 is connected to the third air guide hole 223, and a fifth air guide hole 233 is opened at the bottom of the fourth air guide hole 231. Both ends of the fifth air guide hole 233 are connected to the first annular cavity 28, the second avoidance hole 232 is concentric with the first avoidance hole 224, and the surface adsorption bowl 21 is provided with a sealed cavity 234 concentric with the first avoidance hole 224 and the second avoidance hole 232.

[0039] See also Figures 3 to 6 As shown, the switching air path device 24 includes a switching valve core 241, which is slidably connected in the sealing cavity 234. The bottom end of the switching valve core 241 is connected to the bottom end of the sealing cavity 234 by providing an elastic member 242. The elastic member 242 is a compression spring. The bottom end of the sealing cavity 234 is provided with a sixth air guide hole 235 that is connected to the third air guide hole 223. The middle section of the switching valve core 241 is provided with a first air vent 2411 and a second air vent 2412. The diameter of the switching valve core 241 is larger than the diameters of the third air guide hole 223 and the fourth air guide hole 231.

[0040] See also Figure 9 As shown, the vacuum pressure stabilizing assembly 12 includes an air pump 121, an exhaust valve, a drain valve, a silencer box 122, a gas buffer box 123, a water container 124, and an air pressure sensor; the air pressure sensor is used to detect the negative pressure value of each conductive air path.

[0041] See also Figures 9 to 12 As shown, the control component includes a main controller control circuit, an air pump control circuit, a pressure detection control circuit, and an electrotherapy control module 18; the electrotherapy control module 18 includes an electrotherapy output unit 181 for controlling the treatment intensity of the adsorption bowl 2.

[0042] When in use, first place the adsorption bowl 2 on the treatment site, set the treatment parameters and adsorption pressure through the touch display component 15, and control the vacuum pressure stabilizing component 12 to generate negative pressure airflow through the control component.

[0043] See also Figure 4 and Figure 7 As shown, when the switching air path device 24 is in the initial state, the first negative pressure channel 22 is a passage, and the first air vent 2411 and the third air guide hole 223 opened by the switching valve core 241 are in a connected state, and multiple first air guide holes 221 make the bottom end of the surface adsorption bowl 21 adsorbed to the treatment part through the negative pressure airflow until all the first air guide holes 221 are adsorbed to the treatment part, so that the first annular cavity 28 is in a closed state, which solves the problem of weak adsorption or no adsorption on uneven parts.

[0044] Please refer to 4. Figure 5 、 Figure 7 、 Figure 8As shown, when the negative pressure value of the first negative pressure channel 22 reaches the set value, the negative pressure airflow passes through the sixth air guide hole 235 to make the switching valve core 241 overcome the elastic force of the elastic member 242 and move downward until the second air vent 2412 opened by the switching valve core 241 is connected with the fourth air guide hole 231, so that the second negative pressure channel 23 is connected. At the same time, the first air vent 2411 and the third air guide hole 223 are in a staggered state, so that the first negative pressure channel 22 is closed, and the negative pressure value is kept unchanged. The negative pressure airflow passes through the second negative pressure channel 23 to compress the surface adsorption bowl 21 downward until the bottom end of the water-absorbing elastic member 27 is tightly fitted with the treatment area. The adsorption bowl 2 is doubly adsorbed by the first negative pressure channel 22 and the second negative pressure channel 23, making the adsorption more reliable.

[0045] The water-absorbing elastic member 27 is isolated from the first annular cavity 28 by the inner adsorption bowl 25, so that the negative pressure airflow will not absorb or dry the moisture of the water-absorbing elastic member 27 through the second negative pressure channel 23. Even during long-term treatment, the water-absorbing elastic member can remain moist, so that it has good conductivity and uniform contact with the skin, so that the current is effectively conducted from the electrode to the human skin. The current will not be concentrated in certain small areas with good contact to cause local skin tingling or burning sensation, thereby ensuring the treatment effect and safety; it prevents moisture from the water-absorbing elastic member 27 from entering the negative pressure pipeline, thereby avoiding the problem of the humid environment in the negative pressure pipeline breeding bacteria or mold causing treatment infection.

[0046] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A low-frequency therapeutic device comprising: A main unit (1) and an adsorption bowl (2), characterized in that the main unit (1) comprises a housing (11), a vacuum pumping and voltage stabilizing component (12) is provided inside the housing (11), the vacuum pumping and voltage stabilizing component (12) is connected to an output port (13) provided on the front side of the housing (11) via a conductive air pipe, and the output port (13) is connected to the adsorption bowl (2) via a conductive air pipe; The adsorption bowl (2) includes a surface adsorption bowl (21), the surface adsorption bowl (21) is provided with a first negative pressure channel (22) and a second negative pressure channel (23), a switching air path device (24) is provided between the first negative pressure channel (22) and the second negative pressure channel (23), an inner adsorption bowl (25) coaxial with the surface adsorption bowl (21) is provided in the cavity of the surface adsorption bowl (21), a first annular cavity (28) is provided on the outer side of the inner adsorption bowl (25) and the inner side of the surface adsorption bowl (21), an electrode member (26) is fixedly connected to the top end of the cavity of the inner adsorption bowl (25), and a water-absorbing elastic member (27) is attached to the bottom end of the electrode member (26); The first negative pressure channel (22) includes a first air guide hole (221), a circular hole (222) is provided at the top of the first air guide hole (221) and is in communication with the first air guide hole (221), the tops of the plurality of first air guide holes (221) are in communication with the circular hole (222), a third air guide hole (223) is provided at the top of the circular hole (222), a first avoidance hole (224) is provided in the middle of the third air guide hole (223), the second negative pressure channel (23) includes a fourth air guide hole (231), a second avoidance hole (232) is provided in the middle of the fourth air guide hole (231), and the surface adsorption bowl (21) is provided with a sealed cavity (234) concentric with the first avoidance hole (224) and the second avoidance hole (232); The switching air path device (24) includes a switching valve core (241), the switching valve core (241) is slidably connected in the sealing cavity (234), the bottom end of the switching valve core (241) is connected to the bottom end of the sealing cavity (234) by being provided with an elastic member (242), the bottom end of the sealing cavity (234) is provided with a sixth air guide hole (235) connected to the third air guide hole (223), the middle section of the switching valve core (241) is provided with a first air vent (2411) and a second air vent (2412), when the first air vent is opened, the second air vent is opened, and the first air vent is opened. After the negative pressure value of a negative pressure channel (22) reaches a set value, the negative pressure airflow passes through the sixth air guide hole (235) to cause the switching valve core (241) to move downward, overcoming the elastic force of the elastic member (242), until the second air vent (2412) opened by the switching valve core (241) is in a communication state with the fourth air guide hole (231), so that the second negative pressure channel (23) is in a communication state. At the same time, the first air vent (2411) and the third air guide hole (223) are in a misaligned state, so that the first negative pressure channel (22) is in a closed state, and the negative pressure value is kept unchanged.

2. A low-frequency therapeutic device according to claim 1, characterized in that: The first air guide holes (221) are formed on the side wall of the surface adsorption bowl (21), and there are a plurality of the first air guide holes (221). The plurality of the first air guide holes (221) are evenly distributed along the axial direction of the surface adsorption bowl (21).

3. A low-frequency therapeutic apparatus according to claim 2, characterized in that: The top of the fourth air guide hole (231) is connected to the third air guide hole (223), the bottom of the fourth air guide hole (231) is provided with a fifth air guide hole (233), both ends of the fifth air guide hole (233) are connected to the first annular cavity (28), and the second avoidance hole (232) is concentric with the first avoidance hole (224).

4. A low-frequency therapeutic apparatus according to claim 3, characterized in that: The vacuum pumping and pressure stabilizing assembly (12) comprises an air pump (121), an exhaust valve, a drain valve, a muffler box (122), a gas buffer box (123), a water container (124), and an air pressure sensor.

5. A low-frequency therapeutic apparatus according to claim 4, characterized in that: The bottom of the housing (11) is fixedly connected to a chassis (14), the bottom end of the chassis (14) is fixedly connected to a plurality of casters, the top of the housing (11) is fixedly connected to a touch display component (15), and the front side of the housing (11) is slidably connected to a drawer (16).

6. The low-frequency therapeutic apparatus according to claim 5, characterized in that: The conductive air pipe comprises an air pipe and a wire arranged inside the air pipe.

7. A low-frequency therapeutic apparatus according to claim 6, characterized in that: A push handle (17) is provided on the rear side of the housing (11), heat dissipation holes are provided on both sides of the housing (11), and a control component is provided inside the housing (11), the control component comprising a control circuit, an air pump control circuit, and a pressure detection control circuit.

8. The low-frequency therapeutic apparatus according to claim 7, characterized in that: The diameter of the switching valve core (241) is larger than the diameters of the third air guide hole (223) and the fourth air guide hole (231).

9. The low-frequency therapeutic apparatus according to claim 8, characterized in that: An inverted retaining edge (251) is provided at the bottom end of the inner adsorption bowl (25), and the water-absorbing elastic member (27) is clamped into the cavity of the inner adsorption bowl (25) via the retaining edge (251).

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