A low frequency neuromuscular electrical stimulation physiotherapy device

Abstract

The present application relates to the technical field of electrotherapy, in particular to a low-frequency neuromuscular electrical stimulation physiotherapy device, which comprises an instrument body, a lead wire and an electrode sheet, one end of the lead wire is connected with the instrument body, and the electrode sheet is connected with the end of the lead wire away from the instrument body, the electrode sheet comprises a flexible support frame, a non-woven fabric layer and a conductive layer, the flexible support frame is preferably made of silica gel, and the non-woven fabric layer is arranged on the flexible support frame.The present application is provided with the flexible support frame, the non-woven fabric layer and the conductive layer, after physiotherapy, the staff wipes the hydrogel clean, and then re-applies the hydrogel on the surface of the conductive layer for physiotherapy again, so that the conductive layer indirectly contacts the skin of the user through the hydrogel, thereby avoiding the problem of cross-infection of multiple users, and in addition, the electrode sheet does not need to be discarded after being used once, and can be repeatedly used, so that the physiotherapy cost can be effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of electrotherapy technology, and in particular to a low-frequency neuromuscular electrical stimulation physiotherapy device. Background Technology

[0002] Low-frequency neuromuscular electrical stimulation devices are physiotherapy instruments that use low-frequency pulsed currents for treatment. Through effective electrical stimulation, nerve fibers are excited, and the excitement is then transmitted to the corresponding innervated muscles, causing the muscles in the corresponding area to contract, thus playing a certain role in physiotherapy.

[0003] The physiotherapy device includes the instrument body, wires, and electrode pads. When in use, the specific pulse current generated by the instrument body is transmitted to the electrode pads through the wires. The electrode pads transmit the current to the skin around a specific area of ​​the human body. The current stimulates the motor nerves around the skin, thereby triggering muscle contraction and achieving the physiotherapy purposes of exercising muscles, relieving pain, and promoting blood circulation.

[0004] Existing electrode pads are divided into disposable and reusable types. Disposable electrode pads are used and discarded, which is clean and hygienic and can effectively avoid cross-infection. However, the disadvantage is that the cost is relatively high. Reusable electrodes, although the cost is relatively low, have their conductive layer exposed to the air, which is prone to oxidation. Once a rusty electrode pad comes into contact with human skin, it will have a great impact on the safety of physiotherapy. Summary of the Invention

[0005] Therefore, it is necessary to provide a low-frequency neuromuscular electrical stimulation physiotherapy device to address the problems of high cost of existing electrode pads and easy oxidation of the conductive layer of the electrode pads.

[0006] The above objectives are achieved through the following technical solutions:

[0007] A low-frequency neuromuscular electrical stimulation physiotherapy device includes:

[0008] Instrument body;

[0009] One end of the wire is connected to the instrument body;

[0010] The electrode is connected to the end of the wire furthest from the instrument body;

[0011] The electrode sheet includes a flexible support frame, a non-woven fabric layer and a conductive layer. The non-woven fabric layer is disposed on the flexible support frame, and the conductive layer is embedded in the non-woven fabric layer. The current input terminal of the conductive layer is located above the non-woven fabric layer, and the current output terminal of the conductive layer is located below the non-woven fabric layer.

[0012] The flexible support frame has both an unfolded and a folded state;

[0013] In the folded state, the two sides of the flexible support frame in the width direction bend downwards until the output end of the conductive layer is enclosed inside the non-woven fabric layer.

[0014] In the unfolded state, the flexible support frame has an arc surface, and the output end of the conductive layer is exposed.

[0015] Preferably, the flexible support frame has preset bending openings at the center positions of both sides along its length.

[0016] Preferably, the preset bend is a W-shape with the opening facing downwards.

[0017] Preferably, a sealing strip is provided inside the preset bend.

[0018] Preferably, the lower surface of the nonwoven fabric layer is provided with a gel layer.

[0019] Preferably, a transparent film is adhered to both sides of the gel layer.

[0020] Preferably, rubber strips are provided on both sides of the lower surface of the flexible support frame in the width direction;

[0021] In the unfolded state, the lower part of the rubber strip tilts towards the center of the flexible support frame in the width direction;

[0022] When folded, the rubber strip adheres to the gel layer.

[0023] Preferably, the flexible support frame has an outer fastening part and an inner fastening part on both sides in the width direction, and the outer fastening part and the inner fastening part can fasten together.

[0024] Preferably, the nonwoven fabric layer includes an inner layer and an outer layer, which are arranged sequentially from top to bottom on the flexible support frame.

[0025] Preferably, the conductive layer includes a connection socket, an upper insulating sheet, a lower insulating sheet, and electrode contacts. The upper insulating sheet is disposed on the non-woven fabric layer, the connection socket is disposed on the upper insulating sheet, the lower insulating sheet is disposed between the inner layer and the outer layer, and there are two electrode contacts disposed at both ends of the lower insulating sheet. The electrode contacts extend from the inner layer and are electrically connected to the connection socket.

[0026] The beneficial effects of this invention are:

[0027] This invention features a flexible support frame, a non-woven fabric layer, and a conductive layer. After the treatment, the staff wipes the hydrogel clean. When the treatment is repeated, the hydrogel is reapplied to the surface of the conductive layer. Since the conductive layer is indirectly in contact with the user's skin through the hydrogel, the problem of cross-infection among multiple users can be avoided. In addition, the electrode pads do not need to be discarded after one use and can be reused multiple times, thus effectively reducing the cost of treatment. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of a low-frequency neuromuscular electrical stimulation physiotherapy device according to the present invention.

[0029] Figure 2 This is a schematic diagram of the electrode sheet structure in a low-frequency neuromuscular electrical stimulation physiotherapy device of the present invention;

[0030] Figure 3 This is a half-sectional axonometric view of the electrode pads in a low-frequency neuromuscular electrical stimulation physiotherapy device of the present invention;

[0031] Figure 4 This is a schematic diagram showing the position of the electrode contacts in a low-frequency neuromuscular electrical stimulation physiotherapy device of the present invention;

[0032] Figure 5 This is a schematic diagram of the folded state of the flexible support frame in a low-frequency neuromuscular electrical stimulation physiotherapy device of the present invention.

[0033] Figure 6 This is an exploded view of the electrode pads in a low-frequency neuromuscular electrical stimulation physiotherapy device of the present invention;

[0034] Figure 7 This is a front view of a low-frequency neuromuscular electrical stimulation physiotherapy device according to the present invention;

[0035] Figure 8 for Figure 7 Sectional view of AA;

[0036] Figure 9 This is a schematic diagram of the rubber strip in a folded state in a low-frequency neuromuscular electrical stimulation physiotherapy device of the present invention;

[0037] Figure 10 This is a schematic diagram of the gel layer in use in a low-frequency neuromuscular electrical stimulation physiotherapy device of the present invention.

[0038] in:

[0039] 100. Instrument body;

[0040] 200. Wire;

[0041] 300. Electrode sheet; 310. Flexible support frame; 311. Pre-set bending opening; 320. Non-woven fabric layer; 321. Inner layer; 322. Outer layer; 330. Conductive layer; 331. Connection socket; 332. Upper insulating sheet; 333. Lower insulating sheet; 334. Electrode contact; 340. Sealing strip; 350. Gel layer; 360. Rubber strip; 371. Outer fastening part; 372. Inner fastening part. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0043] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0044] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] like Figures 1 to 10 As shown, a low-frequency neuromuscular electrical stimulation physiotherapy device includes an instrument body 100, a wire 200, and an electrode plate 300. One end of the wire 200 is connected to the instrument body 100, and the electrode plate 300 is connected to the end of the wire 200 away from the instrument body 100. The electrode plate 300 includes a flexible support frame 310, a non-woven fabric layer 320, and a conductive layer 330. The flexible support frame 310 is preferably made of silicone. The non-woven fabric layer 320 is disposed on the flexible support frame 310, and the conductive layer 330 is embedded in the non-woven fabric layer 320. The current input terminal of the conductive layer 330 is located above the nonwoven fabric layer 320. Specifically, the current input terminal of the conductive layer 330 is connected to the wire 200, and the current output terminal of the conductive layer 330 is located below the nonwoven fabric layer 320. The flexible support frame 310 has an unfolded state and a folded state. In the folded state, the two sides of the flexible support frame 310 in the width direction are bent downwards until the current output terminal of the conductive layer 330 is surrounded inside the nonwoven fabric layer 320. In the unfolded state, the flexible support frame 310 is an arc surface, and the current output terminal of the conductive layer 330 is exposed.

[0046] In its initial state, the flexible support frame 310 is folded, and the current output terminal of the conductive layer 330 is enclosed within the non-woven fabric layer 320. At this time, the interior of the non-woven fabric layer 320 is isolated from the outside air, effectively preventing corrosion of the current output terminal of the conductive layer 330. When the electrode pad 300 is needed, the operator switches the flexible support frame 310 from the folded state to the unfolded state. The unfolded flexible support frame 310 has a curved surface to better fit the user's skin at the treatment site. At this time, the current output terminal of the conductive layer 330 is exposed. Next, the operator applies hydrogel to the conductive layer 330. The electrode 300 is then attached to the skin of the user's treatment area, outside the current output terminal of the conductive layer 330. At this point, the current output terminal of the conductive layer 330 is indirectly connected to the skin of the user's treatment area via hydrogel. Finally, the operator activates the instrument body 100. The low-frequency pulse current generated by the instrument body 100 is transmitted through the wire 200 to the current input terminal of the conductive layer 330, and then from the current input terminal to the current output terminal of the conductive layer 330. Finally, the current output terminal of the conductive layer 330 delivers the current to the skin around the user's treatment area via hydrogel, stimulating the skin. The surrounding motor nerves trigger muscle contractions, achieving therapeutic effects such as muscle strengthening, pain relief, and improved blood circulation. After the treatment, staff first remove the electrode pads 300 from the user's skin at the treatment site, then turn off the device 100. Next, they wipe the hydrogel applied to the current output terminal of the conductive layer 330 clean. Since the electrode pads 300 need to have hydrogel reapplied to the current output terminal of the conductive layer 330 for reuse, the current output terminal of the conductive layer 330 will not directly contact the user's skin. Therefore, cross-infection among multiple users can be avoided without replacing the electrode pads 300. In addition to addressing the issue of the electrode pad 300 disclosed in this invention being reusable, it can effectively reduce the cost of physiotherapy. After wiping the hydrogel applied to the current output end of the conductive layer 330 clean, the operator switches the flexible support frame 310 from the unfolded state back to the folded state. At this time, the two sides of the flexible support frame 310 in the width direction bend downwards until the current output end of the conductive layer 330 is enclosed inside the non-woven fabric layer 320. At this time, the output end of the conductive layer 330 is isolated from the outside air. Therefore, when the electrode pad 300 is not in use, it can effectively prevent the current output end of the conductive layer 330 from corroding.

[0047] Furthermore, the nonwoven layer 320 includes an inner layer 321 and an outer layer 322, which are arranged sequentially from top to bottom on the flexible support frame 310.

[0048] The nonwoven fabric layer 320 is configured as an inner layer 321 and an outer layer 322 to facilitate the fixing of the conductive layer 330 onto the nonwoven fabric layer 320.

[0049] Furthermore, the conductive layer 330 includes a connection socket 331, an upper insulating sheet 332, a lower insulating sheet 333, and electrode contacts 334. The upper insulating sheet 332 is disposed on the outer layer 322, and the connection socket 331 is disposed on the upper insulating sheet 332 and connected to the wire 200. The lower insulating sheet 333 is disposed between the inner layer 321 and the outer layer 322. There are two electrode contacts 334, which are disposed at both ends of the lower insulating sheet 333 and extend from the inner layer 321. The two electrode contacts 334 are electrically connected to the connection socket 331. Specifically, both electrode contacts 334 are connected to the connection socket 331 through a metal wire (disposed inside the lower insulating sheet 333) so that current can be transmitted from the connection socket 331 to the electrode contacts 334.

[0050] In a further embodiment, such as Figure 2 , Figures 4-6 As shown, the flexible support frame 310 has preset bending openings 311 at the center of both sides along its length, and the preset bending openings 311 are W-shaped with the opening facing downwards.

[0051] The purpose of pre-set bending openings 311 at the center of both sides of the flexible support frame 310 along its length is to ensure that the two sides of the flexible support frame 310 along its width can fit together completely after folding. The pre-set bending openings 311 are W-shaped with the opening facing downwards. When the two sides of the flexible support frame 310 along its width are folded downwards, the middle part of the flexible support frame 310 will not deform. After placing the conductive layer 330 in the middle part of the flexible support frame 310, the conductive layer 330 can be prevented from being damaged by the bending of the flexible support frame 310, thereby ensuring that the interior of the nonwoven fabric layer 320 is isolated from the outside air.

[0052] In a further embodiment, such as Figure 4 and Figure 5 As shown, a sealing strip 340 is provided inside the preset bend opening 311.

[0053] The sealing strip 340 is provided to improve the sealing performance at the preset bend 311, ensuring that the inside of the nonwoven fabric layer 320 and the outside air can be isolated from each other for a long time, thereby improving the service life of the electrode contacts 334.

[0054] In a further embodiment, such as Figures 5-10 As shown, a gel layer 350 is provided on the lower surface of the nonwoven fabric layer 320.

[0055] The purpose of setting the gel layer 350 is to replace the hydrogel, simplify the workflow of staff, and avoid differences in user experience caused by inconsistent application thickness of hydrogel.

[0056] In the initial state, the gel layer 350 is attached to the non-woven fabric layer 320. At this time, the gel layer 350 is in contact with the electrode contact 334. The current output by the electrode contact 334 is transmitted to the skin of the user's treatment area through the gel layer 350. After the treatment, the staff will peel the gel layer 350 off the non-woven fabric layer 320. When the electrode pad 300 is used again, a new gel layer 350 needs to be replaced. Similarly, the new gel layer 350 is attached to the non-woven fabric layer 320.

[0057] In a further embodiment, a transparent film is adhered to both sides of the gel layer 350.

[0058] A transparent film is adhered to both sides of the gel layer 350 to protect it and prevent contamination. When the gel layer 350 needs to be attached to the non-woven fabric layer 320, the transparent film on one side of the gel layer 350 is peeled off first, and then that side of the gel layer 350 is attached to the non-woven fabric layer 320. If the electrode pad 300 is to be used immediately, the transparent film on the other side of the gel layer 350 is also peeled off, and then the gel layer 350 is attached to the skin of the user's treatment area. If the electrode pad 300 is not to be used temporarily, the transparent film on the other side of the gel layer 350 does not need to be peeled off, allowing the flexible support frame 310 to be switched from the unfolded state to the folded state for storage.

[0059] In a further embodiment, such as Figures 8-10 As shown, rubber strips 360 are provided on both sides of the lower surface of the flexible support frame 310 in the width direction. In the unfolded state, the lower part of the rubber strips 360 is inclined towards the center of the flexible support frame 310 in the width direction. In the folded state, the rubber strips 360 are in contact with the gel layer 350.

[0060] In the initial state, such as Figure 9 As shown, at this time, the rubber strip 360 is flattened by the gel layer 350, and the two rubber strips 360 are pressed together. The lower surface of the gel layer 350 is in close contact with the upper surface of the rubber strip 360 to improve the sealing performance and prevent outside air from entering. In use, the flexible support frame 310 is switched from the folded state to the unfolded state. The unfolded flexible support frame 310 is as follows: Figure 10 As shown, at this time, the gel layer 350 is in close contact with the rubber strip 360 and the non-woven fabric layer 320, and the gel layer 350 is lifted upward by the two rubber strips 360, which increases the positive pressure between the gel layer 350 and the non-woven fabric layer 320, thereby increasing the connection between the gel layer 350 and the non-woven fabric layer 320. After the physiotherapy, the staff removes the electrode pad 300 from the user's skin at the treatment site and then replaces it with a new gel layer 350. Specifically, first, the transparent film attached to one side of the gel layer 350 is peeled off, and then the gel layer 350 is attached to the non-woven fabric layer 320. At this time, as shown... Figure 8As shown, the gel layer 350 is initially fixed on the nonwoven fabric layer 320, with the edge of the gel layer 350 located below the rubber strip 360. A certain gap is formed between the gel layer 350 and the rubber strip 360. Next, the flexible support frame 310 is switched from an unfolded state to a folded state. During this process, when the flexible support frame 310 is folded until the edges on both sides of the gel layer 350 in the width direction contact each other, as the flexible support frame 310 continues to fold, the gel layer 350 compresses the rubber strip 360, so that the rubber... The inclination of the lower part of the strip 360 gradually decreases. At the same time, the rubber strip 360 also presses the gel layer 350 in the opposite direction, so that the residual air between the gel layer 350 and the non-woven fabric layer 320 is squeezed into the folded part of the gel layer 350. This not only prevents air from remaining between the non-woven fabric layer 320 and the gel layer 350, causing the electrode contacts 334 between the non-woven fabric layer 320 and the gel layer 350 to come into contact with air and rust, but also makes the gel layer 350 adhere more tightly to the non-woven fabric layer 320.

[0061] Furthermore, if a user has physiotherapy plans for both the morning and afternoon of the same day, the flexible support frame 310 can be folded directly after the user's morning physiotherapy is completed. Then, the electrode pad 300 can be marked and removed from the wire 200 for storage. There is no need to replace the gel layer 350. When the user has afternoon physiotherapy, the previously marked and stored electrode pad 300 can be used directly. This helps to save costs and will not pose any health risks to the user.

[0062] In a further embodiment, such as Figure 9 As shown, the flexible support frame 310 has an outer fastening part 371 and an inner fastening part 372 on both sides in the width direction. Both the outer fastening part 371 and the inner fastening part 372 are made of silicone. The inner side of the outer fastening part 371 has a triangular groove, and the outer side of the inner fastening part 372 has a corresponding triangular protrusion. The outer fastening part 371 and the inner fastening part 372 can fasten each other.

[0063] When the flexible support frame 310 is in the folded state, the triangular protrusion of the inner fastening part 372 is fastened in the triangular groove of the outer fastening part 371. At this time, the flexible support frame 310 remains in the folded state. When it is necessary to switch the flexible support frame 310 from the folded state to the unfolded state, the staff pulls the outer fastening part 371 and the inner fastening part 372 with both hands respectively, so that the inner fastening part 372 disengages from the outer fastening part 371. At this time, the flexible support frame 310 returns to the unfolded state under its own elasticity.

[0064] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A low frequency neuromuscular electrical stimulation physiotherapy device, characterized in that, include: Instrument body; One end of the wire is connected to the instrument body; The electrode is connected to the end of the wire furthest from the instrument body; The electrode sheet includes a flexible support frame, a non-woven fabric layer, and a conductive layer. The non-woven fabric layer is disposed on the flexible support frame, and the conductive layer is embedded in the non-woven fabric layer. The current input terminal of the conductive layer is located above the non-woven fabric layer, and the current output terminal of the conductive layer is located below the non-woven fabric layer. The conductive layer is placed in the middle part of the flexible support frame. The flexible support frame has both an unfolded and a folded state; In the folded state, the two sides of the flexible support frame in the width direction bend downwards until the output end of the conductive layer is enclosed inside the non-woven fabric layer. In the unfolded state, the flexible support frame has an arc surface, and the output end of the conductive layer is exposed; The flexible support frame has preset bending openings at the center of both sides along its length. The preset bending opening is a W shape with the opening facing downwards; when the two sides of the flexible support frame are folded downwards in the width direction, the middle part of the flexible support frame will not deform. After placing the conductive layer in the middle part of the flexible support frame, the conductive layer can be prevented from being damaged due to the bending of the flexible support frame, thereby ensuring that the inside of the non-woven fabric layer is isolated from the outside air. The nonwoven fabric layer includes an inner layer and an outer layer, which are arranged sequentially from top to bottom on a flexible support frame. The conductive layer includes a connection socket, an upper insulating sheet, a lower insulating sheet, and electrode contacts. The upper insulating sheet is disposed on the non-woven fabric layer, the connection socket is disposed on the upper insulating sheet, the lower insulating sheet is disposed between the inner layer and the outer layer, and there are two electrode contacts disposed at both ends of the lower insulating sheet. The electrode contacts extend from the inner layer, and the electrode contacts are electrically connected to the connection socket through a metal wire disposed inside the lower insulating sheet.

2. A low frequency neuromuscular electrostimulation physiotherapy device according to claim 1, characterized in that, A sealing strip is provided inside the preset bend.

3. A low frequency neuromuscular electrostimulation physiotherapy device according to claim 2, characterized in that, The lower surface of the nonwoven fabric layer is provided with a gel layer.

4. The low-frequency neuromuscular electrical stimulation physiotherapy device according to claim 3, characterized in that, A transparent film is adhered to both sides of the gel layer.

5. The low frequency neuromuscular electrostimulation physiotherapy device according to claim 3, characterized in that, Rubber strips are provided on both sides of the lower surface of the flexible support frame in the width direction; In the unfolded state, the lower part of the rubber strip tilts towards the center of the flexible support frame in the width direction; When folded, the rubber strip adheres to the gel layer.

6. A low frequency neuromuscular electrostimulation physiotherapy device according to claim 5, characterized in that, The flexible support frame has an outer fastening part and an inner fastening part on both sides in the width direction, and the outer fastening part and the inner fastening part can fasten together.

Images