CN213551836U

CN213551836U - Dry electrode

Info

Publication number: CN213551836U
Application number: CN202022173960.1U
Authority: CN
Inventors: 李君实; 黄东
Original assignee: Xiumei Beijing Microsystems Technology Co Ltd
Current assignee: Xiumei Beijing Microsystems Technology Co Ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-06-29
Anticipated expiration: 2030-09-28

Abstract

The embodiment of the utility model provides a dry electrode, dry electrode includes: an abutment having a first side for adhering to a target; the probe is arranged on the first side face and is used for being in contact with the target to detect an electric signal; the conductive buckle head is arranged on the second side face deviating from the first side face, the conductive buckle head is electrically connected with the probe, the conductive buckle head is provided with a buckle head connecting portion which is detachably connected with the conductive buckle seat, and the buckle head connecting portion is provided with a contact coupler which is used for being electrically connected with the conductive buckle seat. The embodiment of the utility model provides a dry electrode is through connecting probe and electrically conductive discount electricity, utilizes the electricity signal transmission that electrically conductive discount detected the probe to give external circuit, can improve dry electrode's commonality to guarantee signal of telecommunication's stability, make the user wear for a long time, and the activity is unrestricted.

Description

Dry electrode

Technical Field

The utility model relates to a bioelectricity signal monitoring technology field especially relates to a dry electrode.

Background

With the development of biomedicine, bioelectric signals are important in clinical diagnosis and treatment, for example, in the fields of electrocardio, electroencephalogram, myoelectric charged impedance imaging and the like, and can be used for monitoring cardiovascular and cerebrovascular diseases, arrhythmia, muscular dysfunction and other diseases.

The existing bioelectrode is usually connected with the electric signal of the electrode by adopting a lead, is electrically connected with a corresponding socket by a plug connected with the lead, is not firm enough by adopting the mode of connecting the lead and the electrode, and has larger weight by adopting the redundant connection mode, thereby causing larger pressure to the skin of a target and influencing the normal activity of the target.

In addition, the existing wet electrode for detecting skin electric signals needs to introduce a liquid conductive material, and the moisture volatilization of the liquid conductive material can cause the conductive performance to be obviously reduced, so that the electrode cannot be worn for a long time. The dry electrodes which can be worn for a long time and do not contain liquid conductive materials, such as a ball-sucking electrode, a foot-touching dry electrode and the like, typically need to exert a large force on the skin to realize stable contact, ensure the quality of acquired electric signals, are complex to operate, and a target to be detected needs to be kept still, so that the movement of the target to be detected is limited.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a dry electrode for it is firm inadequately to solve the mode that adopts wire and electrode connection among the prior art, and this kind of redundant connected mode makes bioelectrode's weight great moreover, can cause great pressure for target skin department, influences the defect of the normal activity of target, realizes improving dry electrode's commonality, and pierce through the stratum corneum of high impedance through the micropin structure, guarantee the quality of signal of telecommunication and signal transmission's stability, make user's activity unrestricted.

The embodiment of the utility model provides a dry electrode, include: an abutment having a first side for adhering to a target; the probe is arranged on the first side face and is used for being in contact with the target to detect an electric signal; the conductive buckle head is arranged on the second side face deviating from the first side face, the conductive buckle head is electrically connected with the probe, the conductive buckle head is provided with a buckle head connecting portion which is detachably connected with the conductive buckle seat, and the buckle head connecting portion is provided with a contact coupler which is used for being electrically connected with the conductive buckle seat.

According to the utility model discloses a dry electrode, the probe includes: the base is arranged on the attaching piece and is electrically connected with the conductive buckle head; a microneedle electrically connected to the base, the microneedle extending outwardly from a bottom surface of the base.

According to the utility model discloses dry electrode, the micropin is a plurality of, and is a plurality of the micropin is in the bottom surface of base is the array and arranges.

According to an embodiment of the present invention, the base is circular, oval or square.

According to the utility model discloses a dry electrode of an embodiment, the length of micropin is 100 μm-1000 μm; or the diameter of the circumcircle of the bottom surface of the base is 3mm-10 mm.

According to the utility model discloses a dry electrode, electrically conductive discount includes: the base is arranged on the fitting piece; the buckle head connecting part comprises a contraction section and an expansion section, the contact coupling is arranged on the expansion section, the expansion section is connected with the base through the contraction section, and the diameter of the expansion section is larger than that of the contraction section.

According to the utility model discloses a dry electrode, dry electrode still includes: the conductive connector is provided with a connecting hole, the conductive connector is arranged in the connecting hole, and the probe and the conductive buckle head are electrically connected through the conductive connector.

According to the utility model discloses a dry electrode, piece of laminating includes substrate and glues and paste, glue paste with the substrate is connected, glue the deviating from of pasting the side of substrate forms first side.

According to the utility model discloses a dry electrode, laminating piece is circular or oval.

According to the utility model discloses a dry electrode, the circumscribed circle diameter of the first side of laminating piece is 1cm-5 cm.

The embodiment of the utility model provides a dry electrode is through connecting probe and electrically conductive discount electricity, utilizes the electricity signal transmission that electrically conductive discount detected the probe to give external circuit, can improve dry electrode's commonality to guarantee signal of telecommunication's stability, make the user wear for a long time, and the activity is unrestricted.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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 described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

fig. 2 is an exploded view of a dry electrode according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of a dry electrode according to an embodiment of the present invention;

fig. 4 is a schematic view of a dry electrode engaged with a conductive button seat according to an embodiment of the present invention;

fig. 5 is a schematic view illustrating a dry electrode and a conductive button seat according to an embodiment of the present invention.

Reference numerals:

the attaching member 10, the connecting hole 13, the substrate 14, the adhesive 15,

the shape of the probe 20, base 21, microneedles 22,

a conductive button head 30, a base 31, a button head connecting part 32, a contraction section 33, an expansion section 34,

the electrically conductive connection body 40 is provided,

and a conductive button seat 50.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "upper", "lower", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only used for convenience of description and simplification of the description of the embodiments of the present invention, and do not indicate or imply that the device or element indicated must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

A dry electrode according to an embodiment of the present invention is described below with reference to fig. 1 to 5.

As shown in fig. 1 and 2, an embodiment of the present invention provides a dry electrode, including: the fitting 10, the probe 20 and the conductive button 30.

Wherein, the fitting 10 has a first side for adhering to an object.

It will be appreciated that the target may be an organism, such as a human body, but also other animal bodies, such as certain domestic animals or pets, whose electrical skin signals may be monitored to assist in determining health.

The attachment member 10 has a first side and a second side, the first side facing away from the first side, wherein the first side has an adhesive material that can be adhered to an object, such as the attachment member 10 can be placed on a person's scalp and the first side is adhered to the scalp.

The attachment member 10 can be made of a flexible material that can conform to the shape of the skin of the subject and can be applied well to virtually any skin surface.

A probe 20 is provided at the first side, the probe 20 being adapted to contact the target to detect the electrical signal.

It will be appreciated that the probe 20 is mounted on a first side such that when the first side is adhered to a target, the probe 20 is capable of contacting the target, penetrating the high impedance stratum corneum, providing low impedance and stable electrical contact without the presence of a conductive gel or paste, and is wearable by a user for extended periods of time without restriction of movement, thereby improving applicability to various applications.

The conductive button 30 is disposed on the second side, the conductive button 30 is electrically connected to the probe 20, the conductive button 30 has a button connecting portion 32 for detachably connecting to the conductive button seat 50, and the button connecting portion 32 is provided with a contact coupling (not shown) for electrically connecting to the conductive button seat 50.

It is understood that the conductive button 30 is installed on the second side surface, the conductive button 30 may be configured to be conductive as a whole and may be made of a metal material, and the conductive button 30 is electrically connected to the probe 20 and can transmit the electrical signal detected by the probe 20 to an external circuit, so that the external terminal can analyze and display the electrical signal.

The conductive buckle 30 has a buckle connection portion 32, the buckle connection portion 32 can be detachably connected to the conductive buckle base 50, for example, it can be a snap connection, a contact coupler electrically connected to the conductive buckle base 50 is disposed on the buckle connection portion 32, and when the buckle connection portion 32 is physically connected to the conductive buckle base 50, the contact coupler on the buckle connection portion 32 and the conductive buckle base 50 are electrically connected.

Conductive discount 30 can be hard material, for example, aluminum alloy, ferroalloy and copper alloy, just so can be when conductive discount 30 with electrically conductive knot seat 50 realize stabilizing the physical connection, switch on the signal of telecommunication, because it is more firm to adopt conductive discount 30 to connect, can guarantee the stability of signal of telecommunication transmission, meanwhile, because in medical equipment's electricity connection, conductive discount 30 commonality is stronger, utilize conductive discount 30 to come the transmission signal of telecommunication and can improve the adaptation degree of dry electrode and external terminal, improve the commonality.

The embodiment of the utility model provides a dry electrode is through being connected probe 20 and electrically conductive discount 30 electricity, utilizes electrically conductive discount 30 to transmit the signal of telecommunication that probe 20 detected for external circuit, can improve dry electrode's commonality to guarantee signal of telecommunication's stability, make the user wear for a long time, and the activity is unrestricted.

As shown in fig. 3, in some embodiments, the probe 20 includes: a base 21 and microneedles 22.

The base 21 is mounted on the attaching member 10, and the base 21 is electrically connected to the conductive button 30.

It is understood that the base 21 is mounted on the attachment member 10, for example, can be mounted in the connection hole 13 of the attachment member 10, the base 21 can be made of conductive material, the top surface of the base 21 is electrically connected with the conductive button 30, the base 21 can be entirely conductive, and the base 21 can abut against the conductive button 30 in the connection hole 13 to achieve electrical connection.

The microneedles 22 are electrically connected to the base 21, and the microneedles 22 protrude outward from the bottom surface of the base 21.

It will be appreciated that the microneedles 22 are provided on the bottom surface of the base 21, and the microneedles 22 extend outwardly from the bottom surface of the base 21, so that in use, the microneedles 22 are in contact with the skin of the subject and are capable of detecting electrical signals from the subject.

The micro-needle has good electrical conductivity, can be made of metal materials, such as titanium, nickel or stainless steel, and the like, has good mechanical properties, and has good biocompatibility.

Electrode-skin contact impedance is a key factor affecting bioelectrical signals, and high electrode-skin impedance causes attenuation of bioelectrical signals, in other words, low electrode-skin impedance is a necessary prerequisite for obtaining high quality electrical signals.

In a traditional bioelectrical signal research system, there is a certain limitation in acquiring signals by using a wet electrode or a traditional dry electrode. The wet electrode needs skin preparation and application of conductive gel before use, the skin preparation is time-consuming and inconvenient, and the application of the conductive gel is easy to stimulate the skin and cause allergy. Some conventional dry electrodes have high impedance and need to be equipped with on-site high impedance amplifiers. Other conventional dry electrodes, particularly rigid electrodes, do not completely conform to rough skin surfaces and have poor skin base, and therefore, the electrode-skin impedance of conventional dry electrodes is high and the monitored bioelectric signals are not accurate enough.

The epidermis is the outermost layer of the skin and has an average thickness of 0.2 mm. The epidermis is divided into 5 layers from the outside to the inside, namely, the stratum corneum, the stratum lucidum, the stratum granulosum, the acanthocyte layer and the stratum basale (stratum germinativum). Wherein the thickness of the horny layer is 10-15 μm, and the horny layer is electrically insulated and is a main obstacle for extracting biological signals. The epidermis layer contains no nerves and produces no pain perception when subjected to external stimuli. The lower layer of the epidermis is the dermis layer, generally 1mm to 2mm thick, which contains a large number of blood vessels and nerves, is very sensitive to external stimuli, and has the function of pain perception.

The microneedles 22 have a length of 100 μm to 1000 μm, and may be 500 μm, for example. In order to ensure that the microneedles 22 can smoothly penetrate through the stratum corneum and do not cause pain and bleeding, the length of the microneedles 22 is particularly critical, and theoretically, the length of the microneedles 22 is more appropriate to be 100-1000 μm according to the skin structure, so that the microneedles 22 can penetrate through the stratum corneum and stay on the conductive hair growth layer, and bleeding points on the skin and pricking pain are avoided while smooth reading of electric signals is ensured.

The micro-needle 22 can directly penetrate through the stratum corneum with high impedance characteristic to penetrate into the conductive epidermis layer without using conductive gel or polishing the skin, so that the impedance of the electrode and the skin is reduced, and the micro-needle 22 has small size, small skin surface area required during use and small medical injury to a user.

As shown in fig. 3, in some embodiments, the microneedles 22 are multiple, the multiple microneedles 22 are arranged in an array on the bottom surface of the base 21, and by arranging the multiple microneedles 22 arranged in an array, the single microneedle can be prevented from being broken down or having errors, the sensitivity of the dry electrode is improved, and the detection capability of the electrical signal is improved.

As shown in fig. 2, in some embodiments, the base 21 is circular, oval or square, and accordingly, the microneedles 22 are uniformly arranged on the bottom surface of the base 21 to form a circular array, an oval array or a square array.

In some embodiments, the diameter of the base 21 is 3mm to 10mm, such as 6 mm. A great number of experiments show that the microneedle array with the diameter of 3mm-10mm is adopted, so that the microneedle array with the diameter of 3mm-10mm has gentle skin feeling, and the discomfort of the skin can be avoided.

As shown in fig. 1 and 3, in some embodiments, the conductive button head 30 includes: a base 31 and a button head connecting part 32, wherein the base 31 is installed on the attaching piece 10. The button head connecting portion 32 is used for detachably connecting with the external conductive button seat 50, such as by means of a snap connection.

The buckle connection portion 32 includes: the contraction section 33 and the expansion section 34 are in contact coupling with the expansion section 34, the expansion section 34 is connected with the base 31 through the contraction section 33, and the diameter of the expansion section 34 is larger than that of the contraction section 33.

It can be understood that, discount connecting portion 32 can imbed electrically conductive knot seat 50, electrically conductive elastic collar in the knot seat 50, at the electrically conductive in-process of detaining seat 50 of discount connecting portion 32 embedding, expanding section 34 can strut the elastic collar, after expanding section 34 passed through the elastic collar, because contracting section 33 is little than expanding section 34's diameter, the elastic collar resets under the effect of elasticity, tightly hold contracting section 33, the conductive terminal electricity connection in the electrically conductive knot seat 50 of contact coupling on the expanding section 34, just so can make discount connecting portion 32 be difficult to deviate from electrically conductive knot seat 50, can improve dry electrode and external circuit connection's fastness, improve the stability of signal of telecommunication transmission.

As shown in fig. 2 and 3, in some embodiments, the dry electrode further comprises: the conductive connecting body 40, the attaching member 10 is provided with a connecting hole 13, the conductive connecting body 40 is provided in the connecting hole 13, and the probe 20 and the conductive button 30 are electrically connected through the conductive connecting body 40.

It can be understood that the attaching member 10 has the connection hole 13, the connection hole 13 penetrates through the first side and the second side of the attaching member 10 and is located at the center of the first side and the second side, the conductive connection body 40 is located in the connection hole 13, and the base 21, the conductive connection body 40 and the conductive button 30 are sequentially arranged along the direction from the first side to the second side.

It should be noted that one or more mounting holes may be provided according to actual needs, so as to facilitate mounting of one or more probes 20, and further improve the sensitivity of electrical signal detection.

As shown in fig. 3, in some embodiments, the fitting 10 includes a substrate 14 and a sticker 15, the sticker 15 is attached to the substrate 14, and an adhesive surface of the sticker 15 forms the first side surface.

It will be appreciated that the substrate 14 may be made of a flexible, non-toxic material, such as a polyester resin substrate, a polyester substrate, or a polymer substrate. Both sides of the adhesive sticker 15 can have viscosity, one side of the adhesive sticker is adhered to the substrate 14, and the other side of the adhesive sticker forms a first side surface for adhering to a target, so that stable adhesion and fixation in the process of detecting the electric signals are realized, and meanwhile, the flexibility of the attaching part 10 is ensured.

As shown in fig. 1 and 2, in some embodiments, the fitting member 10 has a circular or oval shape, and the fitting with the circular or oval shape is more suitable for being attached to and detached from the skin of the target, so as to facilitate repeated use.

In some embodiments, abutment 10 has a diameter of 1cm to 5cm, for example 3 cm. Set up like this and can guarantee to paste stability the time, further promote the comfort level of skin, further promote laminating 10's relapse suitability.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A dry electrode, comprising:

an abutment having a first side for adhering to a target;

the probe is arranged on the first side face and is used for being in contact with the target to detect an electric signal;

the conductive buckle head is arranged on the second side face deviating from the first side face, the conductive buckle head is electrically connected with the probe, the conductive buckle head is provided with a buckle head connecting portion which is detachably connected with the conductive buckle seat, and the buckle head connecting portion is provided with a contact coupler which is used for being electrically connected with the conductive buckle seat.

2. The dry electrode of claim 1, wherein the probe comprises:

the base is arranged on the attaching piece and is electrically connected with the conductive buckle head;

a microneedle electrically connected to the base, the microneedle extending outwardly from a bottom surface of the base.

3. The dry electrode of claim 2, wherein the plurality of microneedles are arranged in an array on the bottom surface of the base.

4. The dry electrode of claim 2, wherein the base is circular, oval, or square.

5. The dry electrode of claim 2, wherein the microneedles are 100-1000 μ ι η in length;

or the diameter of the circumcircle of the bottom surface of the base is 3mm-10 mm.

6. The dry electrode of any of claims 1-5, wherein the conductive button comprises:

the base is arranged on the fitting piece;

the buckle head connecting part comprises a contraction section and an expansion section, the contact coupling is arranged on the expansion section, the expansion section is connected with the base through the contraction section, and the diameter of the expansion section is larger than that of the contraction section.

7. The dry electrode of any one of claims 1-5, further comprising: the conductive connector is provided with a connecting hole, the conductive connector is arranged in the connecting hole, and the probe and the conductive buckle head are electrically connected through the conductive connector.

8. The dry electrode of any of claims 1-5, wherein the conforming member comprises a substrate and a sticker, the sticker being attached to the substrate, a side of the sticker facing away from the substrate forming the first side.

9. A dry electrode according to any of claims 1 to 5 wherein the abutment member is circular or oval.

10. The dry electrode of claim 9, wherein the first side of the abutment member has a circumscribed circle diameter of between 1cm and 5 cm.