Neuromuscular stimulator electrode

By improving the structure of the neuromuscular stimulator electrode and adopting a large-area suction and guide plate design, the problems of electrode adhesion loss and insufficient adsorption force have been solved, enabling the electrode to be reusable and have stable conductivity, thus reducing the cost of use.

CN224251935UActive Publication Date: 2026-05-19XIEHE HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI & TECH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIEHE HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI & TECH UNIV
Filing Date
2025-04-07
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The electrodes of existing neuromuscular stimulators lose their adhesiveness after prolonged use and cannot be reused. Furthermore, the magnetic ring and the main unit have insufficient adsorption force, making them prone to detachment. The small contact area also leads to poor contact.

Method used

A neuromuscular stimulator electrode was designed, which adopts a bottom cover, electrode sheet and pressure cover structure. The top surface of the pressure cover is provided with an 8-shaped suction plate. The main unit and the electrode are stably adsorbed through large-area surface contact and limiting structure, which increases the adsorption force. The contact area is improved through guide plate and conductive structure.

Benefits of technology

This enables the reusability of electrodes and stable adsorption between the host and the electrodes, avoiding detachment and poor contact, and reducing usage costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model is applicable to the technical field of medical equipment, and provides a neuromuscular stimulator electrode, which comprises a bottom cover, an electrode plate and a gland, a pair of round holes are symmetrically arranged on the gland, a layer of 8-shaped suction plate is fixed on the top surface of the gland, arc limit strips are upwards formed on two sides of the top of the gland, and an upper guide plate and a lower guide plate are arranged on the electrode plate. A positive plate and a negative plate are arranged on the bottom surface of the electrode plate, a round bottom table is arranged on the bottom cover opposite to the round hole of the gland, and the bottom cover is buckled with the gland. In the structure, the suction sheet is located on the uppermost layer, so that the distance between the suction sheet and the host can be reduced as much as possible, the adsorption force between the host and the electrode can be obviously increased, and the host is not prone to falling off in the using process; in addition, a pair of round holes are formed in the gland, upper guide pieces are arranged at the positions, right opposite to the round holes, of the electrodes, when the host and the electrodes are adsorbed, contact pieces at the bottom of the host make contact with the upper guide pieces, the contact area is increased through surface contact, and the host and the electrodes can be stably conducted.
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Description

Technical Field

[0001] This utility model belongs to the field of daily life, and in particular relates to a neuromuscular stimulator electrode. Background Technology

[0002] A neuromuscular stimulator is a medical device that acts on nerves and muscles through electrical stimulation to treat diseases, promote rehabilitation, or improve muscle function. Its electrical stimulation principle is to simulate nerve impulses from the brain by emitting electrical pulses of different frequencies, intensities, and pulse widths, thereby stimulating the neuromuscular junction and causing the muscles to contract.

[0003] Neuromuscular stimulators consist of a main unit and electrodes. Most neuromuscular stimulators on the market are currently one-piece designs, with the main unit and electrodes not detachable. Because the bottom surface of the electrodes has a gel that adheres to the leg surface, the electrodes lose their adhesiveness after prolonged use, rendering the entire device unusable. Other designs feature a separate structure, with a magnetic ring near the bottom of the electrodes, allowing the main unit and electrodes to be magnetically attached. However, in existing products, the relatively large distance between the magnetic ring and the bottom of the main unit results in insufficient adhesion, causing the main unit to easily detach from the electrodes during use. Furthermore, the contact area between the main unit and electrodes is small, representing point contact, which can easily lead to poor contact if the electrodes do not adhere properly. Utility Model Content

[0004] In view of the above problems, the purpose of this utility model is to provide a neuromuscular stimulator electrode, which aims to solve the above technical problems.

[0005] The present invention adopts the following technical solution:

[0006] The neuromuscular stimulator electrode includes a bottom cover, an electrode sheet, and a pressure cap. The pressure cap has a pair of symmetrical circular holes. A figure-eight shaped suction pad is fixed on the top surface of the pressure cap. Arc-shaped limiting strips are formed on both sides of the top of the pressure cap. An upper guide plate is provided on the top surface of the electrode sheet opposite the circular holes. A lower guide plate is provided on the bottom surface of the electrode sheet opposite the upper guide plate. The upper and lower guide plates at the same position are connected. The bottom surface of the electrode sheet also has a positive electrode sheet and a negative electrode sheet, which are connected to the corresponding lower guide plates. The bottom cover has a circular base platform opposite the circular holes of the pressure cap. The bottom cover and the pressure cap are fastened together. The electrode sheet has a positioning port. There is gel on the left and right sides of the bottom surface of the electrode sheet.

[0007] Furthermore, the diameter of the base is larger than the diameter of the circular hole, and the edge of the circular hole has a guide edge.

[0008] Furthermore, four locking strips are symmetrically formed at the bottom edge of the pressure cap, and the sides of the locking strips have locking teeth. The bottom cover has a locking groove corresponding to each locking strip position, and there is also a pair of locking posts at the bottom edge of the pressure cap. The bottom cover has locking holes corresponding to the locking posts positions.

[0009] Furthermore, the positioning port is configured to correspond to the card strip and the card post.

[0010] Furthermore, the suction plate is a magnetic sheet or an iron sheet.

[0011] The beneficial effects of this utility model are as follows: First, an 8-shaped suction plate is set on the top surface of the pressure cover. The suction plate has a large area and can be directly adsorbed to the bottom of the main unit. Since the suction plate is located on the top layer, the distance between it and the main unit can be minimized, which can significantly increase the adsorption force between the main unit and the electrode, and the main unit is not easy to fall off during use. Second, this structure has a pair of round holes on the pressure cover, and the electrode has an upper guide plate facing the round holes. When the main unit and the electrode are adsorbed, the contact plate at the bottom of the main unit contacts the upper guide plate. The surface contact increases the contact area, so that the main unit and the electrode can conduct stably. Attached Figure Description

[0012] Figure 1 This is a three-dimensional representation of the neuromuscular stimulator electrode provided in this embodiment of the invention. Figure 1 ;

[0013] Figure 2 This is a three-dimensional representation of the neuromuscular stimulator electrode provided in this embodiment of the invention. Figure 2 ;

[0014] Figure 3 It is a local magnification of the electrode. Figure 1 ;

[0015] Figure 4 It is a local magnification of the electrode. Figure 2 . Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] To illustrate the technical solution described in this utility model, specific embodiments are described below.

[0018] like Figure 1-4As shown, the neuromuscular stimulator electrode provided in this embodiment includes a bottom cover 1, an electrode sheet 2, and a pressure cover 3. The pressure cover 3 has a pair of symmetrically opened circular holes 31. A figure-eight shaped suction plate 32 is fixed on the top surface of the pressure cover 3. Arc-shaped limiting strips 33 are formed on both sides of the top of the pressure cover 3. An upper guide plate 21 is provided on the top surface of the electrode sheet 2, facing the circular hole. A lower guide plate 22 is provided on the bottom surface of the electrode sheet 21, facing the upper guide plate. The upper and lower guide plates at the same position are connected. The bottom surface of the electrode sheet 2 also has a positive electrode sheet 23 and a negative electrode sheet 24, which are connected to the corresponding lower guide plate 22. The bottom cover 1 has a circular base 11 facing the circular hole 31 of the pressure cover 3. The bottom cover 1 and the pressure cover 3 are fastened together. The electrode sheet 2 has a positioning port 25. There is also gel on the left and right sides of the bottom surface of the electrode sheet 2.

[0019] The bottom surface of the electrode pad has a layer of sticky gel, which is covered with release paper before use. This electrode is used in conjunction with the main unit, which is rechargeable. The electrode is a consumable and can be reused a certain number of times. After the number of uses is exceeded, the electrode can be replaced, but the main unit does not need to be replaced. Since the electrode is cheaper than the main unit, it can significantly reduce operating costs.

[0020] In use, first peel off the release paper, then firmly attach the electrode pads to the surface of the leg muscles. Next, attach the main unit to the electrodes. By setting the working mode of the main unit, intermittent discharge can be achieved, and the discharge parameters can be adjusted. The current sequentially passes through the upper conductor, lower conductor, positive electrode, and negative electrode to form a circuit, thereby stimulating the muscles with electrical discharge.

[0021] Compared to existing products, this product has the following two main features:

[0022] First, the top surface of the pressure cap is provided with a figure-eight shaped suction plate, which is a magnetic sheet or an iron sheet. The suction plate has a large area and a section with clearance holes. The main unit contains a magnetic ring. After the main unit is installed, the bottom of the main unit can be directly attracted to the suction plate. Since the suction plate is located on the top layer, the distance between it and the main unit can be minimized, which can significantly increase the attraction force between the main unit and the electrodes, making it less likely for the main unit to fall off during use.

[0023] Secondly, the bottom of the main unit has a pair of matching frustums, with contact plates on the bottom surface of the frustums. This structure features a pair of circular holes on the pressure cap, with upper guide plates positioned opposite the electrodes. After the main unit is placed on the pressure cap, the contact plates of the main unit and the upper guide plates of the electrodes can directly adhere and contact due to the suction force and the limiting effect of the arc-shaped limiting strip. This structure increases the contact area through surface contact, enabling stable conductivity between the main unit and the electrodes. In the illustration, the diameter of the circular hole is approximately one-third of the width of the pressure cap.

[0024] During electrode installation, the bottom cover 1 and the pressure cover 3 are fastened together. As a specific installation structure, the pressure cover 3 has four symmetrically formed retaining strips 35 along its bottom edge, with retaining teeth 36 on the sides. The bottom cover 1 has a retaining groove 12 corresponding to each retaining strip 35. The pressure cover 3 also has a pair of retaining posts 37 along its bottom edge, and the bottom cover 1 has retaining holes 13 corresponding to the retaining posts 37. Furthermore, the diameter of the base 11 is larger than the diameter of the circular hole 31, and the edge of the circular hole 31 has a guide edge 34. The positioning port 25 is correspondingly positioned to correspond to the retaining strips 35 and retaining posts 37.

[0025] In this preferred structure, the electrodes are fitted onto the locking strip and locking post via positioning ports to form a limiting position. Then, the bottom cover is fastened. The bottom cover has four locking slots and two locking holes, which can stably engage with the locking strip (by locking the locking teeth) and locking holes. Once engaged, it will not easily loosen. Additionally, it should be noted that the diameter of the base is larger than the diameter of the circular hole. After engagement, the base can press the lower guide plate firmly against the bottom of the circular hole, preventing the upper and lower guide plates from shifting or loosening, thus improving the fit.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A neuromuscular stimulator electrode comprising a base cover, an electrode pad, and a grommet, wherein, The pressure cap has a pair of symmetrical circular holes. A figure-eight shaped suction plate is fixed on the top surface of the pressure cap. Arc-shaped limiting strips are formed on both sides of the top of the pressure cap. An upper guide plate is provided on the top surface of the electrode sheet opposite the circular holes. A lower guide plate is provided on the bottom surface of the electrode sheet opposite the upper guide plate. The upper and lower guide plates at the same position are connected. The bottom surface of the electrode sheet also has a positive electrode sheet and a negative electrode sheet, which are connected to the corresponding lower guide plates. A circular base is provided on the bottom cover opposite the circular holes of the pressure cap. The bottom cover and the pressure cap are fastened together. The electrode sheet has a positioning hole. There is gel on the left and right sides of the bottom surface of the electrode sheet.

2. The neuromuscular stimulator electrode of claim 1, wherein, The diameter of the base is larger than the diameter of the circular hole, and the edge of the circular hole has a guide edge.

3. The neuromuscular stimulator electrode of claim 2, wherein, The bottom edge of the pressure cap has four symmetrical locking strips with locking teeth on the sides. The bottom cover has a locking groove opposite each locking strip. The bottom edge of the pressure cap also has a pair of locking posts, and the bottom cover has locking holes opposite the locking posts.

4. The neuromuscular stimulator electrode of claim 3, wherein the at least one electrode is configured to be positioned on the user's skin in a location proximate to the user's tibialis posterior muscle. The positioning port is set to correspond to the card strip and card post.

5. The neuromuscular stimulator electrode of any one of claims 1-4, wherein, The suction plate is a magnetic sheet or an iron sheet.