CN217285805U - Electrode for electrochemical cell - Google Patents

Abstract

The application discloses an electrode, which comprises a sub-buckle, a sub-buckle conductive structure and a probe array, wherein the sub-buckle comprises a flexible conductive base, and the middle part of the top end of the flexible conductive base protrudes upwards to form a protruding part; the sub-buckle conductive structure is arranged on the protruding part; the probe array is installed at the bottom of flexible conductive base and is connected with son knot conducting structure. This application is detained as probe array and son carrier of detaining conducting structure through detaining the son, has not only played the effect of improving the shape of relevant dry electrode, has still realized utilizing the protruding portion that the son was detained to fix the purpose of detaining, has prevented the poor problem of collection precision because of taking place the displacement and leading to in the probe array acquisition process.

Description

Electrode for electrochemical cell

Technical Field

The application relates to the technical field of bioelectrical signal acquisition equipment, in particular to an electrode.

Background

Dry electrodes (dry electrodes) are electrodes that do not need to be used in conjunction with conductive paste, and are mainly used for measuring bioelectric signals, such as electrocardio, electroencephalogram, and electromyogram signals. Because the skin preparation and the coating of the conductive paste are not needed, the dry electrode is very suitable for the requirements of future health monitoring, rehabilitation, disease diagnosis and treatment, detection of brain-computer interfaces and the like and human-computer interaction systems.

For the purpose of acquiring bioelectric signals of skin in a hair area, a column array of dry electrodes is generally used for measurement in the related art. Therefore, the dry electrode has the problems of single shape, poor wearing experience of a user, low measurement precision of the columnar array due to difficulty in fixation and the like.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one of the above problems, the present application provides an electrode for the purpose of long-term detection of bioelectricity and convenient installation.

The present application provides an electrode comprising:

the secondary buckle comprises a flexible conductive base, and the middle part of the top end of the flexible conductive base is upwards protruded to form a protruding part;

the sub-buckle conductive structure is arranged on the protruding part;

and the probe array is arranged at the bottom end of the flexible conductive base and is connected with the sub-buckle conductive structure.

Furthermore, an iridium oxide film layer is plated on the outer surface of each probe of the probe array.

Further, the conductive structure of the sub-buckle is a conductive sleeve body which is sleeved on the protruding part.

Furthermore, a conductive support plate connected with the sub-buckle conductive structure is further arranged inside the flexible conductive base, and each probe of the probe array penetrates through the bottom end of the flexible conductive base and is installed on the conductive support plate.

Furthermore, an anti-skid structure is arranged on the outer surface of the tail end of the probe extending out of the flexible conductive base.

Further, the electrode further comprises:

the female buckle is provided with a concave part matched with the protruding part, and the concave part is provided with a female buckle conductive structure.

This application is detained as probe array and son carrier of detaining conducting structure through detaining the son, has not only played the effect of improving the shape of relevant dry electrode, has still realized utilizing the protruding portion that the son was detained to fix the purpose of detaining, has prevented the poor problem of collection precision because of taking place the displacement and leading to in the probe array acquisition process.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an appearance of an electrode according to an embodiment of the present disclosure;

fig. 2 is a schematic cross-sectional structure diagram of an electrode according to an embodiment of the present disclosure; and

fig. 3 is a schematic structural diagram of a female buckle of an electrode according to an embodiment of the present application.

Detailed Description

Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the positional descriptions, such as the directions of up, down, front, rear, left, right, etc., referred to herein are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present application.

In the description of the present application, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and larger, smaller, larger, etc. are understood as excluding the present number, and larger, smaller, inner, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present application, unless otherwise specifically limited, terms such as set, installed, connected and the like should be understood broadly, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present application in combination with the specific contents of the technical solutions.

An electrode is provided. As shown in fig. 1, the electrode 100 includes: sub-clasp 10, conductive structure 20, and probe array 30.

The sub-buckle 10 includes a flexible conductive base 11, and a protrusion 12 is formed by protruding the top middle part of the flexible conductive base. In particular, the flexible conductive base can be injection molded by using a flexible insulating material. For example, a flexible material such as sponge, silicone rubber, polydimethylsiloxane, soft resin, or the like is used. In the embodiment of the application, the flexible conductive base is a substrate formed by injection molding of soft silicone resin. Therefore, the electrode provided by the embodiment of the application has better flexibility, toughness and biocompatibility, can be better attached to the skin, and does not generate allergic reaction and harmful toxicity on the skin of a wearer. In particular, the shape of the flexible conductive base can be set according to actual needs. For example, the flexible conductive base is provided in a disk shape. The conductive structure 20 is mounted to the projection 12. In particular, the conductive structure may be provided as a conductive plating, such as a metal plating on the protrusions; the conductive structure may also be configured as a structure capable of transmitting a bioelectrical signal, such as a sleeve-shaped conductive structure, a sheet-shaped conductive structure, etc., mounted on the protrusion.

And the probe array 30 is arranged at the bottom end of the flexible conductive base and is connected with the conductive structure. In this embodiment, each probe of the probe array is connected to the conductive structure 20 through a wire 21. In some embodiments, an iridium oxide film may be coated on the outer surface of each probe of the probe array. Because the iridium oxide has the characteristic of water film property, the probe array can be wetted by the iridium oxide film layer in the process of contacting with the skin, and the effect of reducing the contact impedance of the skin is achieved. Specifically, each probe of the probe array is generally provided as a cylindrical needle-like structure, and the diameter may be set to 1 mm. More specifically, since the probe needs to penetrate through the scalp structures (such as stratum corneum, dermis, etc.) to contact the skin, the probe tip needs to be exposed at least 70 μm to meet the requirement of skin contact and thus reduce the skin contact resistance. In the embodiment of the application, the length of the probe exposed at the bottom of the flexible conductive base is set to be 100 microns, so that the probe can be ensured to be directly contacted with the scalp, and the scalp cannot be punctured to cause infection. Specifically, each probe included in the probe array may be formed by integral injection molding with the flexible conductive base, or may be detachably connected to the flexible conductive base.

In some embodiments, as shown in fig. 2, the conductive structure is provided as an electrically conductive sheath 20 that is wrapped around the protrusion, and this arrangement of the electrically conductive sheath has the effect of increasing the contact area of the electrode provided by the embodiments of the present application for electrical connection with other conductive structures.

In some embodiments, the probe array includes a number of probes connected to the conductive structure by conductive connections disposed within a flexible conductive base. Specifically, the conductive connecting member may be provided as a conductive wire or a conductive sheet. In the case that the conductive connection node is a conductive sheet, the conductive sheet may be configured to have a shape corresponding to the shape of the flexible conductive base, for example, a disk-shaped conductive sheet, so that the bioelectrical signal detected by the probe can be transmitted as long as the probe is in contact with the conductive sheet.

In some embodiments, a conductive support plate connected to the sub-buckle conductive structure is further disposed inside the flexible conductive base, and each probe of the probe array is mounted on the conductive support plate through the bottom end of the flexible conductive base. Specifically, the conductive support plate is connected with the sub-buckle conductive structure through a conductive wire. Specifically, the probes may be integrally disposed on the conductive support plate, or may be detachably mounted on the conductive support plate. For example, a plurality of screw holes can be arranged on the conductive support plate in advance, and threads are additionally arranged on the outer surface of the port at one end of each probe, so that each probe of the probe array can be detachably mounted on the conductive support plate through the matching of the threads and the screw holes, and the detachable connection mode is convenient for a user to clean and replace the probes; meanwhile, the mode of installing the probes through the conductive supporting plate also facilitates the assembly of the flexible conductive base and the probe array. Before assembly, a plurality of through holes are formed in the bottom end of the flexible conductive base in advance, so that when the flexible conductive base is assembled, the probes penetrate through the through holes, and the conductive support plate is fixed inside the flexible conductive base, so that the assembly of the probe array and the flexible conductive base can be completed.

Furthermore, in some embodiments, an anti-slip structure may be further disposed on an outer surface of a distal end of the probe extending out of the flexible conductive base, and by the arrangement of the anti-slip structure, a problem that the probe affects acquisition of the bioelectrical signal due to unstable contact with the scalp is avoided. Specifically, the anti-slip structure may be a thread, a protrusion, or the like.

In some embodiments, as shown in fig. 3, the electrode further includes a female buckle 200, the female buckle 200 is provided with a recess 201 matching with the protrusion, and the recess is provided with a female buckle conductive structure. Specifically, the conductive structure of the female buckle may be a metal conductive layer plated on the surface of the recess, a metal contact disposed on the recess, or a conductive sleeve engaged with the recess. When the probe array is used, the protruding part of the male buckle 100 is inserted into the recessed part 201 of the female buckle 200, so that the conductive structure of the male buckle is electrically connected with the conductive structure of the female buckle, and a bioelectric signal detected by the probe array is transmitted outwards through a wire 202 which is arranged on the female buckle and connected with the conductive structure of the female buckle. Meanwhile, the mode that the male button and the female button are matched with each other facilitates the transmission of bioelectricity signals, and the installation scenes of the male button and the female button are increased.

While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are to be included within the scope of the present invention defined by the claims.

Claims (6)

1. An electrode, comprising:

the secondary buckle comprises a flexible conductive base, and the middle part of the top end of the flexible conductive base is upwards protruded to form a protruding part;

the sub-buckle conductive structure is arranged on the protruding part;

and the probe array is arranged at the bottom end of the flexible conductive base and is connected with the sub-buckle conductive structure.

2. The electrode of claim 1, wherein each probe of the probe array is coated with an iridium oxide film layer on an outer surface thereof.

3. The electrode of claim 1, wherein the tab conductive structure is an electrically conductive sleeve body that is wrapped around the tab.

4. The electrode according to claim 1, wherein a conductive support plate connected with a sub-buckle conductive structure is further arranged inside the flexible conductive base, and each probe of the probe array is mounted on the conductive support plate through the bottom end of the flexible conductive base.

5. The electrode of claim 4, wherein the outer surface of the distal end of the probe extending out of the flexible conductive base is provided with an anti-slip structure.

6. The electrode of claim 1, further comprising:

the female buckle is provided with a concave part matched with the protruding part, and the concave part is provided with a female buckle conductive structure.

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