Flexible electrode plate for arm rehabilitation treatment

Abstract

The invention relates to the field of medical electrotherapy, and particularly discloses a flexible electrode plate for arm rehabilitation therapy, which comprises a fabric layer, a composite flexible layer and a contact layer which are stacked in sequence, the composite flexible layer comprises a non-woven fabric woven layer and a wire woven layer which have the same fabric specification, the contact layer is fixed on the wire woven layer, and the contact layer is fixed on the non-woven fabric woven layer. And an electrode tip is arranged on the wire braid layer. The center of the contact layer needs to be attached to the elbow joint, then the electrode tip is clamped by the output chuck to be powered on, the electrode tip transmits current to enter the wire braid layer to be diffused in the electrotherapy process, then the current is transmitted to the contact layer through the wire braid layer (the contact layer can conduct electricity), and when muscles of the large arm and the small arm contract and stretch to drive the elbow joint to move, the elbow joint is driven to move. When a joint moves, the fabric layer, the non-woven fabric braid layer and the wire braid layer are pulled to deform, at the moment, the wire braid layer is a metal wire, a large deformation freedom degree is provided, the wire braid layer cannot be broken due to movement of the joint, and normal operation of the electrode plate is guaranteed.

Description

Technical Field

[0001] The present invention relates to medical electrotherapy technology, in particular to a flexible electrode sheet for arm rehabilitation treatment. Background Art

[0002] As is known to all, electrotherapy electrodes are an important part of electrical stimulation therapy. They stimulate the muscles and nerve tissues by safely guiding the current generated by the electrical stimulation device to the human epidermis. The electrodes mainly have a relatively large contact area, which disperses the concentrated current in the wires and conductors to the entire contact area.

[0003] For example, the invention patent with application publication number CN116271517B and application publication date July 28, 2023, entitled "A Photoelectric Moxibustion Rehabilitation and Physiotherapy Device" includes a host, a power supply, and a light source, and also includes an electrode sheet suitable for being attached to the skin surface and electrically connected to the power supply. When the light emitted by the light source is transmitted to the electrode sheet, the light is emitted from the side of the electrode sheet suitable for being attached to the skin surface, thereby irradiating the skin surface. It also includes a blowing and suction pump, which is connected to the electrode sheet through a hose 1 and is connected to the bottom of the electrode sheet. A one-way valve that can be connected to the bottom of the electrode sheet is fixedly connected to the electrode sheet. An adhesive sheet suitable for being attached to the skin surface is fixedly connected to the electrode sheet circumferentially. It also includes an air pump, a ventilation groove is provided at the bottom of the adhesive sheet, and the air pump and the ventilation groove are connected through a hose 2. The present invention contacts the electrode sheet with the skin, and the light emitted by the light source can be irradiated on the skin after passing through the electrode sheet, so that electrotherapy and phototherapy can be performed simultaneously, and the photoelectric moxibustion has a better rehabilitation and physiotherapy effect on the skin.

[0004] The shortcomings of the existing technology are that the electrotherapy electrode sheet uses hydrogel or silicone as a flexible contact surface to fit the skin, and is provided with a conductive coating to guide the current emitted by the wires and conductors to the flexible block. When synchronously stimulating the biceps, triceps, brachialis and other upper arms and the corresponding connected muscles, an electrode sheet with a larger coverage area is required to cross the elbow joint to cover the skin. However, during the stimulation process, the nerve tissue is stimulated and the muscles are contracted to perform repeated joint movements. The joint movements pull on the electrotherapy electrode sheet, generating shear force to break the conductive coating, resulting in partial failure of the electrode sheet. Summary of the Invention

[0005] The purpose of the present invention is to provide a flexible electrode sheet for arm rehabilitation treatment to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned objectives, the present invention provides the following technical solutions: a flexible electrode sheet for arm rehabilitation therapy, comprising a fabric layer, a composite flexible layer and a contact layer stacked in sequence, the composite flexible layer comprising a non-woven fabric woven layer and a wire woven layer with the same fabric specifications, the contact layer being fixed on the wire woven layer, an electrode head being provided on the wire woven layer, and the electrode head extending out of the fabric layer.

[0007] As a further description of the above technical solution: the wire braided layer is woven into a grid, and the grid is deformed as the composite flexible layer is pulled.

[0008] As a further description of the above technical solution: the electrode head includes a dispersion head and an external electrode provided on the dispersion head, and the dispersion head is attached to the wire braided layer and penetrates the non-woven fabric braided layer.

[0009] As a further description of the above technical solution: the fabric layer includes extension strips arranged along a diagonal line, and the contact layer includes a hydrogel layer corresponding to the extension strips and a silicone layer arranged between two of the hydrogel layers.

[0010] As a further description of the above technical solution: the silicone layer is provided with linear array grooves, the grooves are used to store the gel paste, and the silicone layer is driven to fold into an "Ω" shape toward the elbow joint.

[0011] As a further description of the above technical solution: the electrode heads are arranged diagonally along the contact layer, sliding heads are symmetrically arranged inside the dispersion head, and the external electrodes are provided with sliding grooves for sliding connection to the sliding heads. The external electrodes in the same row are docked so that the contact layer is folded into an "Ω" shape.

[0012] As a further description of the above technical solution: an elastic locking piece is provided at the bottom of the slide groove, and the elastic locking piece locks the external electrode on the sliding head.

[0013] As a further description of the above technical solution: a second through-hole is opened on the contact layer, and the second through-hole corresponds to the external electrode.

[0014] As a further description of the above technical solution: the elastic locking member includes a symmetrical elastic plate, the elastic plate is attached to the sliding head for locking, and the elastic plate is driven to extend between the other elastic plate and the sliding head for locking.

[0015] As a further description of the above technical solution: the wire braiding layer is vertically and horizontally interwoven in an alternating pattern of one up and one down.

[0016] In the above technical solution, the present invention provides a flexible electrode sheet for arm rehabilitation treatment. When in use, the contact layer is applied to the muscle. If electrotherapy is required through the upper arm, forearm and elbow joint, the center of the contact layer needs to be attached to the elbow joint, and then the output clamp is clamped to the electrode head to energize it. During the electrotherapy process, the electrode head transmits current into the wire braiding layer for diffusion, and then the wire braiding layer transmits current to the contact layer (the contact layer can be conductive). At this time, when the muscles of the upper arm and forearm contract and stretch to drive the elbow joint to move, the fabric layer, non-woven fabric braiding layer and wire braiding layer will be pulled to deform. At this time, the wire braiding layer is a metal wire, which provides a larger degree of deformation freedom and will not break due to joint movement, thereby ensuring the normal operation of the electrode sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0019] Figure 2 An exploded schematic diagram of the electrode head structure provided by an embodiment of the present invention;

[0020] Figure 3 for Figure 2 A in the middle is an enlarged schematic diagram;

[0021] Figure 4 An exploded schematic diagram of the overall structure provided by an embodiment of the present invention;

[0022] Figure 5 for Figure 4 The enlarged schematic diagram of point B in the middle;

[0023] Figure 6 A schematic diagram of the structure of a wire braided layer provided in an embodiment of the present invention;

[0024] Figure 7 A schematic cross-sectional view of the overall structure provided by an embodiment of the present invention;

[0025] Figure 8 for Figure 7 Enlarged schematic diagram at point C in the middle;

[0026] Figure 9 Based Figure 7 An enlarged schematic diagram of another state at C in the middle;

[0027] Figure 10 for Figure 9Enlarged schematic diagram at point D in the middle.

[0028] Description of reference numerals:

[0029] 1. Fabric layer; 11. First perforation; 12. Extension strip; 2. Electrode head; 21. Dispersion head; 211. Sliding head; 22. External electrode; 221. Slide groove; 23. Elastic locking member; 231. Elastic plate; 232. Fitting surface; 3. Composite flexible layer; 31. Non-woven fabric braided layer; 32. Wire braided layer; 321. Hydrogel layer; 3211. Second perforation; 322. Silicone layer; 3221. Wire trough. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] See also Figure 1-10 The embodiment of the present invention provides a technical solution: a flexible electrode sheet for arm rehabilitation therapy, comprising a fabric layer 1 arranged on the top layer, the fabric layer 1 being made of a high-stretch non-woven fabric, and the fabric layer 1 being arranged with W-shaped folds, further increasing the stretchability of the fabric layer 1. Below the fabric layer 1 is a fixed composite flexible layer 3 and a contact layer. The composite flexible layer 3 comprises a non-woven fabric woven layer 31 and a wire woven layer 32 of the same fabric specifications. The non-woven fabric woven layer 31 is first fixed to the fabric layer 1 by an adhesive (glue). The non-woven fabric woven layer 31 and the wire woven layer 32 have the same texture and weaving method. The non-woven fabric woven layer 31 and the wire woven layer 32 are also bonded by glue. The contact layer is fixed to the wire woven layer 32. The wire woven layer 32 is provided with an electrode head 2. A first perforation 11 is opened on the fabric layer 1. The electrode head 2 extends out of the fabric layer 1 through the first perforation 11, so that the output clamp of the electrotherapy device clamps the electrode head 2 for power supply. During use, the contact layer is applied to the muscles. If electrotherapy is required through the upper arm, forearm and elbow joint, the center of the contact layer needs to be attached to the elbow joint, and then the output clamp is clamped to the electrode head 2 to energize it. During the electrotherapy process, the electrode head 2 transmits current into the wire braiding layer 32 for diffusion, and then the wire braiding layer 32 transmits current to the contact layer (the contact layer can conduct electricity). At this time, when the muscles of the upper arm and forearm contract and stretch to drive the elbow joint to move, the fabric layer 1, the non-woven fabric braiding layer 31 and the wire braiding layer 32 will be pulled to deform. At this time, the wire braiding layer 32 is a metal wire, which provides a larger degree of deformation freedom and will not break due to joint movement, thereby ensuring the normal operation of the electrode sheet.

[0032] In another embodiment provided by the present invention, the wire braided layer 32 is vertically and horizontally interwoven in an alternating pattern of one up and one down, and the interwoven gaps are in a square grid shape. The wire braided layer 32 is woven into a grid that is flipped 45 degrees, such as Figure 6As shown, the state on the fabric layer 1 is as follows Figure 4 As shown, when the elbow joint moves, the square grid is pulled and deformed along with the composite flexible layer 3, and rotates along the alternating upper and lower parts during pulling, so that the square grid is deformed into a diamond grid to achieve the extension ability of pulling deformation, which is less likely to be broken than the coating.

[0033] The grid is similar to a parallel plate capacitor, that is, the metal grid will form multiple micro electrodes. When the voltage is fixed, the grid spacing is equal to the equivalent plate spacing. The output voltage of the electrotherapy equipment is a constant voltage, and the electric field strength is E=V voltage / d plate spacing. The grid reduces the plate spacing during deformation and the electric field strength increases. As the elbow joint moves, the electric field strength is passively enhanced as it stretches, and the electric field is targeted for elbow joints with thicker stratum corneum.

[0034] In another embodiment provided by the present invention, the electrode head 2 includes a dispersion head 21 and an external electrode 22 provided on the dispersion head 21, the dispersion head 21 is embedded in the non-woven fabric braided layer 31, and the wire braided layer 32 directly contacts the bottom surface of the dispersion head 21, such as Figure 8 As shown, the dispersing head 21 is attached to the wire braided layer 32 , and the dispersing head 21 penetrates the non-woven fabric braided layer 31 .

[0035] In another embodiment provided by the present invention, the fabric layer 1 includes extension strips 12 arranged along the diagonal line, and the contact layer includes a hydrogel layer 321 corresponding to the extension strips 12. The hydrogel layer 321 has good self-adhesion and is adhered to the skin of the upper arm and the forearm through the self-adhesive hydrogel layer 321 with the extension strips 12. A silicone layer 322 is provided between the two hydrogel layers 321. The silicone layer 322 is mainly targeted at the elbow joint and has lower viscosity than the hydrogel layer 321. It is not easily damaged by strong wear due to the movement of the elbow joint. When in use, it is necessary to apply gel cream (i.e., conductive hydrogel cream) to ensure conductivity, so that it can be used normally even when physical therapy is not performed on the elbow joint.

[0036] Preferably, the silicone layer 322 is provided with wire grooves 3221 in a linear array, which provide the silicone layer 322 with stronger bending ability. At the same time, the wire grooves 3221 can also be used to store gel cream to prevent too little gel cream from being worn out during the movement of the elbow joint. When fitting the elbow joint, first straighten the arm, then fold the silicone layer 322 into an "Ω" shape, and align the concave surface of the "Ω" shape with the elbow joint for application. At this time, during the electrotherapy of the bent arm, the "Ω" silicone layer 322 provides freedom to reduce the stretching of the wire braided layer 32 when the elbow joint does not need additional electrotherapy, thereby reducing electrical nerve stimulation to the elbow joint.

[0037] In another embodiment provided by the present invention, the electrode head 2 is arranged diagonally along the contact layer. Since the wire braided layer 32 has the conductivity of oil compared to the conductive coating, it does not need to be arranged in the center of the entire electrode sheet and can be arranged in a dispersed manner. The sliding head 211 is symmetrically arranged in the dispersion head 21, and the external electrode 22 is provided with a slide groove 221 for sliding connection to the sliding head 211. Figure 1 For reference, the same row is the horizontal row, and the two external electrodes 22 in the same row can be docked in advance to fold the contact layer into an "Ω" shape, so that the "Ω" shape folding of the contact layer can be completed when the first one is used.

[0038] Preferably, an elastic locking member 23 is provided at the bottom of the slide groove 221, and the elastic locking member 23 locks the external electrode 22 on the sliding head 211, that is, Figure 8 As shown, a second through-hole 3211 is provided on the contact layer to ensure that the external electrode 22 always extends out of the dispersing head 21. The contact layer in the second through-hole 3211 will not be directly separated, and a portion of the contact layer will remain on the contact layer. The second through-hole 3211 corresponds to the external electrode 22. When two external electrodes 22 in the same row need to be docked, the external electrode 22 is directly pressed to bypass the locking of the elastic locking member 23, and the contact layer retained on the second through-hole 3211 is removed to allow the external electrode 22 to pass through.

[0039] Preferably, the elastic locking member 23 includes a symmetrical elastic plate 231, and the end of the elastic plate 231 is provided with a fitting surface 232, and the fitting surface 232 is used to fit the sliding head 211. When the external electrode 22 is extended out of the dispersing head 21, as shown in FIG. Figure 8 As shown, the elastic plate 231 is locked in contact with the sliding head 211, keeping the external electrode 22 extending out of the dispersing head 21. When two external electrodes 22 in the same row are to be connected, one external electrode 22 is pressed toward the other dispersing head 21 in the same row, so that the contact surface 232 on the elastic plate 231 of the moving external electrode 22 extends between the other elastic plate 231 and the sliding head 211 and is locked, that is, Figure 10 As shown, the two external electrodes 22 are connected to each other.

[0040] When enhanced electrotherapy is needed for the elbow joint, the arm is straightened and the electrode sheets are attached to the upper arm, elbow joint and forearm. Then the output clamp is clamped to the electrode head 2 to energize it. During the electrotherapy process, the electrode head 2 transmits current into the wire braiding layer 32 for diffusion and then transmitted to the contact layer by the wire braiding layer 32. At this time, when the muscle contraction and stretching drive the elbow joint to move, the alternating parts of the upper and lower parts rotate, causing the square grid to be transformed into a diamond grid. The distance between the electrodes of the grid is reduced during the deformation process, and the electric field strength is enhanced. As the elbow joint moves, the electric field strength is passively enhanced as it stretches, and the electric field is targeted for the elbow joint with a thicker stratum corneum.

[0041] When the elbow joint does not need to be strengthened, one of the external electrodes 22 is pressed against the other of the same row of the dispersion heads 21, so that the abutting surface 232 on the elastic plate 231 of the moving external electrode 22 is locked between the other elastic plate 231 and the sliding head 211, i.e. as shown in Figure 10 the two external electrodes 22 are butted, and then the electrode sheet is attached to the upper arm, elbow joint and lower arm, so that the concave surface of the "Ω" shape is attached to the elbow joint, at this time the silicone layer 322 of the "Ω" shape provides freedom in the process of the electrotherapy curved arm, so as to reduce the stretching of the wire braid layer 32 and the electric nerve stimulation to the elbow joint when the elbow joint does not need to be additionally electrotherapeutically treated.

[0042] The above only describes certain exemplary embodiments of the present application by way of illustration, and it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for those skilled in the art. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A flexible electrode sheet for arm rehabilitation therapy, comprising a fabric layer (1), a composite flexible layer (3) and a contact layer stacked in sequence, characterized in that: The composite flexible layer (3) comprises a non-woven fabric woven layer (31) and a wire woven layer (32) of the same fabric specifications; the contact layer is fixed on the wire woven layer (32); an electrode head (1) is provided on the wire woven layer (32); and the electrode head (1) extends out of the fabric layer (1).

2. The flexible electrode sheet for arm rehabilitation therapy according to claim 1, characterized in that: The wire braided layer (32) is woven into a grid, and the grid is deformed as the composite flexible layer (3) is pulled.

3. The flexible electrode sheet for arm rehabilitation therapy according to claim 1, characterized in that: The electrode head (1) comprises a dispersion head (21) and an external electrode (22) arranged on the dispersion head (21); the dispersion head (21) is attached to the wire braiding layer (32) and penetrates the non-woven fabric braiding layer (31).

4. The flexible electrode sheet for arm rehabilitation therapy according to claim 1, characterized in that: The fabric layer (1) comprises extension strips (12) arranged along a diagonal line, and the contact layer comprises a hydrogel layer (321) corresponding to the extension strips (12) and a silicone layer (322) arranged between the two hydrogel layers (321).

5. The flexible electrode sheet for arm rehabilitation therapy according to claim 4, characterized in that: The silicone layer (322) is provided with linear grooves (3221) in a linear array, and the linear grooves (3221) are used to store gel paste. The silicone layer (322) is driven to fold into an "Ω" shape, facing the elbow joint.

6. The flexible electrode sheet for arm rehabilitation therapy according to claim 3, characterized in that: The electrode heads (1) are arranged diagonally along the contact layer, a sliding head (211) is symmetrically arranged inside the dispersion head (21), and a sliding groove (221) for slidingly connecting to the sliding head (211) is provided on the external electrodes (22), and the external electrodes (22) in the same row are butted together so that the contact layer is folded into an "Ω" shape.

7. The flexible electrode sheet for arm rehabilitation therapy according to claim 6, characterized in that: An elastic locking member (23) is provided at the bottom of the sliding groove (221), and the elastic locking member (23) locks the external electrode (22) on the sliding head (211).

8. The flexible electrode sheet for arm rehabilitation therapy according to claim 6, characterized in that: A second through-hole (3211) is provided on the contact layer, and the second through-hole (3211) corresponds to the external electrode (22).

9. The flexible electrode sheet for arm rehabilitation therapy according to claim 7, characterized in that: The elastic locking member (23) comprises a symmetrical elastic plate (231), the elastic plate (231) is fitted on the sliding head (211) for locking, and the elastic plate (231) is driven to extend between the other elastic plate (231) and the sliding head (211) for locking.

10. The flexible electrode sheet for arm rehabilitation therapy according to claim 2, characterized in that: The wire braiding layer (32) is formed by alternating vertical and horizontal interweaving in an up-down pattern.

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