An electrode structure for a low-frequency electrical stimulator for neuromuscular nerves

Abstract

This invention discloses an electrode pad structure for a low-frequency electrical stimulator for neuromuscular nerves, comprising: an electrode plate on which the electrode pad is adhered; two fixed end plates; a limiting assembly movably disposed on the two fixed end plates and located between them; an elastic clamping member for clamping the electrode plate outside the limiting assembly; an elastic strip on each fixed end plate; a contact member on the end of each elastic strip away from the fixed end plate; and an adhesive member for fixing the two contacts to the patient's skin. This invention helps prevent the electrode pad from detaching during use, and facilitates storage of the entire structure by collecting the electrode connection wires when not in use.

Description

Technical Field

[0001] This invention relates to the field of rehabilitation medical device technology, specifically to an electrode structure for a low-frequency electrical stimulator for neuromuscular stimulation. Background Technology

[0002] Neuromuscular low-frequency electrical stimulators transmit low-frequency pulsed currents to the skin through electrode pads to stimulate nerve and muscle tissue, achieving purposes such as rehabilitation therapy and muscle training. However, existing neuromuscular low-frequency electrical stimulators, by attaching electrode pads to an electrode plate and then directly attaching the other side of the electrode pads to the patient's treatment area, are prone to electrode pad detachment when the patient moves or sweats. Summary of the Invention

[0003] The purpose of this invention is to provide an electrode structure for a low-frequency electrical stimulator for neuromuscular devices, which helps to reduce or even avoid electrode detachment.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an electrode pad structure for a low-frequency electrical stimulator for neuromuscular nerves, comprising: an electrode plate, wherein the electrode pad is attached to the electrode plate; two fixed end plates; a limiting component, which is movably disposed on the two fixed end plates and located between the two fixed end plates; an elastic clamping member, which is used to clamp the electrode plate outside the limiting component and is fixedly connected to the electrode plate; an elastic strip, wherein each fixed end plate is provided with an elastic strip; a contact member, wherein each elastic strip is provided with a contact member at the end away from the fixed end plate; and an adhesive member, which is used to fix the two contact members to the patient's skin.

[0005] Furthermore, the limiting component includes: a concave limiting cylinder located between two fixed end plates; a rotating shaft with its two ends rotatably mounted on the two fixed end plates; a connecting member connecting the rotating shaft and the concave limiting cylinder; wherein, the elastic clamping member is used to clamp the concave limiting cylinder outside, and the electrode connecting wire passes around the concave limiting cylinder.

[0006] Furthermore, the outer diameter of the concave limiting cylinder gradually increases from the middle of the concave limiting cylinder to the end of the concave limiting cylinder.

[0007] Furthermore, the connecting component includes: a retaining ring, which is fixedly sleeved on the outside of the rotating shaft; and connecting posts, with multiple connecting posts connecting the retaining ring to the inner wall of the concave limiting cylinder.

[0008] Furthermore, the elastic clamping member includes: a clamping part for clamping on the outside of the concave limiting cylinder; and a connecting part for fixing the electrode plate, the connecting part being disposed on the arc-shaped clamping part.

[0009] Furthermore, the elastic clamping member also includes an end portion, which is disposed on the arc-shaped clamping portion.

[0010] Furthermore, the contact element includes a support piece, which is disposed at the end of the elastic strip away from the fixed end plate.

[0011] Furthermore, the contact element also includes a contact pad disposed on the support sheet and used to contact the patient's skin.

[0012] Furthermore, the adhesive tape is made of medical adhesive tape with through holes.

[0013] Furthermore, it also includes a limiting rod, which is set on one of the elastic strips and is used to prevent the electrode plate from rotating.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are as follows.

[0015] 1. This invention uses an adhesive component to fix the entire structure to the patient's skin. When the patient moves, it facilitates the movement of the elastic clamping component, causing the clamping part to change outward, thereby causing the entire elastic clamping component to press against the electrode plate, which helps to ensure that the electrode pad is firmly fixed, thereby reducing or even preventing the electrode pad from detaching from the patient.

[0016] 2. When not in use, the electrode connecting wires are easily wound up on the concave limiting cylinder, which facilitates the winding of the electrode connecting wires and the storage of the entire structure. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the overall structure of the present invention from another angle.

[0020] Figure 3 This is a partial structural schematic diagram of the present invention.

[0021] Figure 4 This is a schematic diagram of the elastic clamping component structure of the present invention.

[0022] Figure 5 This is a schematic diagram of the limiting component structure of the present invention.

[0023] Figure 6This is a schematic diagram of the fit between the end plate, connector, and rotating shaft of the present invention.

[0024] Figure 7 This is a schematic diagram of the contact element, limiting rod, and elastic strip of the present invention.

[0025] In the diagram: 1. Electrode plate; 2. Limiting assembly; 21. Concave limiting cylinder; 22. Connector; 221. Fixing ring; 222. Connecting post; 23. Rotating shaft; 3. Elastic clamping component; 31. Clamping part; 32. Connecting part; 33. End; 4. End plate; 5. Elastic strip; 6. Contact component; 61. Support piece; 62. Contact pad; 7. Adhesive component; 71. Through hole; 8. Limiting rod. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example 1

[0028] Please see Figures 1-7 The present invention provides a technical solution: an electrode pad structure for a low-frequency electrical stimulator for neuromuscular nerves, comprising two end plates 4 symmetrically arranged, with a limiting component 2 disposed between the two end plates 4; the electrode pad structure further comprises an elastic clamping member 3, which is used to clamp the electrode pad outside the limiting component 2, and an electrode plate 1 is fixedly connected to the elastic clamping member 3, which is used to attach the electrode pad; elastic strips 5 are connected to both end plates 4, and each elastic strip 5 is provided with a contact member 6, which is used to contact the patient's skin, and is fixed to the patient's skin by an adhesive member 7.

[0029] The limiting component 2 includes a concave limiting cylinder 21, which has a concave structure. The outer diameter of the concave limiting cylinder 21 gradually increases from the middle of the concave limiting cylinder 21 to any one end. The limiting component 2 also includes a rotating shaft 23, the two ends of which are respectively movably mounted on two end plates 4 via bearings. The bearings are lightweight bearings. At least one connector 22 is provided on the outside of the rotating shaft 23. The connector 22 is used to connect to the inner wall of the concave limiting cylinder 21.

[0030] The elastic clamping member 3 includes a clamping part 31, which has a U-shaped structure. One end of the clamping part 31 is connected to a connecting part 32, and the other end of the clamping part 31 is connected to an end 33, which has a columnar structure.

[0031] The elastic strip 5 has an arc-shaped structure. The entire elastic clamping component 3 and the elastic strip 5 can be made of elastic materials such as polyethylene, or a composite structure, such as a composite structure of silicone and metal, with a metal rod embedded inside the silicone (this is existing technology and will not be described in detail here).

[0032] The contact element 6 includes a support piece 61 fixedly disposed on the elastic strip 5. Specifically, the support piece 61 is fixed at the end of the elastic strip 5 away from the end plate 4. The contact element 6 also includes a contact pad 62, which is disposed on the side of the support piece 61 away from the elastic strip 5. The contact pad 62 is structurally adapted to the support piece 61. The contact pad 62 is used to contact the patient's skin and is made of materials such as silicone or rubber.

[0033] The electrode plate structure also includes a limiting rod 8, which is fixedly mounted on one of the elastic strips 5; the limiting rod 8 is provided to limit the electrode plate 1.

[0034] The adhesive piece 7 can be made of medical tape, which has a through hole 71. The through hole 71 is rectangular, and the entire medical tape can be square (specifically customizable). The support piece 61 is attached to the side away from the contact pad 62 by the medical tape and is attached to the patient's skin by the medical tape. The elastic strip 5, the elastic clamping piece 3, the concave limiting cylinder 21, and a part of the electrode plate 1 pass through the through hole 71, thereby fixing the contact piece 6, the elastic strip 5, and the limiting assembly 2 as a whole.

[0035] In this embodiment, the electrode sheet is first attached to the electrode plate 1. Then, the elastic clamping member 3 is clamped to the outside of the concave limiting cylinder 21. Specifically, the clamping part 31 is pried open and clamped to the outside of the middle position of the concave limiting cylinder 21, that is, the clamping part 31 is located outside the smallest part of the outer diameter of the concave limiting cylinder 21. By adjusting the position of the elastic clamping member 3, the side of the electrode plate 1 connected to the elastic clamping member 3 is made parallel to the side of the support piece 61 connected to the elastic strip 5. At this time, the side of the electrode sheet used to adhere to the patient's skin is basically flush with the side of the contact pad 62 away from the support piece 61. At this time, the limiting rod 8 is adjacent to the electrode plate 1 (or directly contacts the electrode plate 1, which can be achieved by setting the limiting rod 8 at a suitable position on the elastic limiting strip). Then, the side of the support piece 61 away from the contact pad 62 is attached with medical tape and attached to the patient's skin with medical tape, so that the electrode sheet is attached to the patient's treatment area. At this time, the contact pad 62 contacts the patient's skin.

[0036] In this embodiment, the electrode connection wire is directly connected to the electrostimulator. The electrode plate 1 is fixed by clamping the concave limiting cylinder 21 with the elastic clamp 3. When the electrode plate 1 moves due to the patient's movement, the elastic clamp 3 will move further. Since the limiting rod 8 is provided, the rotation of the electrode plate 1 is hindered. Since the clamping part 31 is located outside the smallest part of the outer diameter of the concave limiting cylinder 21, the movement of the elastic clamp 3 makes it easy to make the clamping part 31 deform outward, thereby making the entire elastic clamp 3 press against the electrode plate 1. The contact 6 is fixed to the patient's skin with medical tape, so it is easy to ensure that the electrode is fixed firmly and reduce or even avoid the electrode from falling off the patient.

[0037] Example 2

[0038] See again Figures 1-7 This embodiment is based on Embodiment 1. In this embodiment, by winding the electrode connecting wire around the outside of the concave limiting cylinder 21, the concave limiting cylinder 21 can be rotated due to the presence of the rotating shaft 23 and the connector 22. By rotating the concave limiting cylinder 21, most of the electrode connecting wire (i.e., the middle part excluding the two ends of the electrode connecting wire, where no joint is provided) can be easily wound onto the concave limiting cylinder 21. When not in use, by winding most of the electrode connecting wire onto the concave limiting cylinder 21, and clamping the concave limiting cylinder 21 at a suitable position, such as the lower part of the concave limiting cylinder 21 and the middle or slightly above the middle part of the concave limiting cylinder 21, the electrode connecting wire can be wound onto the middle part of the concave limiting cylinder 21. In other words, when not in use, it is convenient to wind up the electrode connecting wire, and the entire structure is convenient for storage.

[0039] In use, by removing the elastic clamp 3, it is convenient to attach the electrode sheet and to unfold the electrode connection wire by rotating the concave limiting cylinder 21.

[0040] Example 3

[0041] See again Figure 4 and Figure 5 Based on Embodiment 2, the connector 22 includes a fixing ring 221, which is fixedly sleeved on the outside of the rotating shaft 23. The fixing ring 221 is located inside the concave limiting cylinder 21, and multiple connecting posts 222 are connected between the fixing ring 221 and the inner wall of the concave limiting cylinder 21. The multiple connecting posts 222 outside the fixing ring 221 are evenly distributed around the axis of the rotating shaft 23, and the diameter of the connecting posts 222 is small. The connector 22 is used to fix the concave limiting cylinder 21.

[0042] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electrode pad structure for a low-frequency electrical stimulator for neuromuscular nerves, characterized in that, include: Electrode plate (1), electrode sheet is attached to electrode plate (1); Fixed end plate (4), there are two fixed end plates (4); Limiting component (2) is movably disposed on two fixed end plates (4) and the limiting component (2) is located between the two fixed end plates (4); The elastic clamping member (3) is used to clamp the electrode plate (1) outside the limiting component (2). Elastic strip (5), one elastic strip (5) is provided on each fixed end plate (4); Contact element (6), each elastic strip (5) is provided with a contact element (6) at the end away from the fixed end plate (4); Adhesive piece (7), adhesive piece (7) is used to fix the two contact pieces (6) to the patient's skin; Limiting component (2) includes: A concave limiting cylinder (21) is located between two fixed end plates (4); The two ends of the rotating shaft (23) are respectively rotatably mounted on two fixed end plates (4); Connector (22) is connected between the rotating shaft (23) and the concave limiting cylinder (21); Among them, the elastic clamping member (3) is used to clamp the concave limiting cylinder (21) outside, and the electrode connection line passes around the concave limiting cylinder (21).

2. The electrode pad structure for a low-frequency electrical stimulator for neuromuscular nerves according to claim 1, characterized in that, The outer diameter of the concave limiting cylinder (21) gradually increases from the middle of the concave limiting cylinder (21) towards the end (33) of the concave limiting cylinder (21).

3. The electrode pad structure for a low-frequency electrical stimulator for neuromuscular nerves according to claim 1, characterized in that, The connector (22) includes: A fixing ring (221) is fixedly sleeved on the outside of the rotating shaft (23); Multiple connecting posts (222) are connected between the connecting post (222), the fixing ring (221) and the inner wall of the concave limiting cylinder (21).

4. The electrode pad structure for a low-frequency electrical stimulator for neuromuscular nerves according to claim 1, characterized in that, The elastic clamping element (3) includes: Clamping part (31) is used to clamp the concave limiting cylinder (21) outside; The connecting part (32) is fixedly connected to the electrode plate (1), and the connecting part (32) is disposed on the arc-shaped clamping part (31).

5. The electrode pad structure for a low-frequency electrical stimulator for neuromuscular nerves according to claim 4, characterized in that, The elastic clamping member (3) also includes an end (33), which is disposed on the arc-shaped clamping part (31).

6. The electrode pad structure for a low-frequency electrical stimulator for neuromuscular nerves according to claim 1, characterized in that, The contact element (6) includes a support piece (61), which is located at the end of the elastic strip (5) away from the fixed end plate (4).

7. The electrode pad structure for a low-frequency electrical stimulator for neuromuscular stimulation according to claim 6, characterized in that, The contact (6) also includes a contact pad (62) disposed on the support sheet (61) and is used to contact the patient's skin.

8. The electrode pad structure for a low-frequency electrical stimulator for neuromuscular nerves according to claim 1, characterized in that, The adhesive part (7) is made of medical tape, and the medical tape has through holes (71).

9. The electrode pad structure for a low-frequency electrical stimulator for neuromuscular nerves according to claim 1, characterized in that, It also includes a limiting rod (8), which is set on one of the elastic bars (5) and is used to prevent the rotation of the electrode plate (1).

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