Background
The application of electric fields and currents to the medical field has been known for many years in two forms, namely 1) applying conductive electrodes to the human or animal body, maintaining a certain potential difference, and forming an electric field by applying conductive electrodes to the body or tissue. The application may be applied to the skin surface of the human body or to the body, such as a heart defibrillator, peripheral nerve and muscle stimulator, tumor resection device, etc., and 2) an electric wave source emits electric waves, such as an RF wave source and a microwave source, to transfer energy to the body by radiation or induction. In this mode, there is no conduction of electrical energy between the source of energy and the body.
The tumor treating electric field is one kind of low-strength, medium-frequency and alternating electric field and is used to treat tumor via interfering the mitosis process of tumor cell. Research shows that the tumor electric field therapy has remarkable effect in treating glioblastoma, non-small cell lung cancer, melanoma and other tumors, and the method can prolong the survival time of patients and has less side effect.
The tumor treatment electric field is applied to the tissue region where the tumor is located through an external electrode, and the electric field is applied to the tumor through a capacitive coupling mode. The tumor treatment electric field electrode is applied on the skin surface of the patient, the patient is treated for a long time, and the duration of the application of the electric field electrode is 2-4 days. For a long time, it causes blockage of sweat glands, hair follicles, etc. of skin, and evaporated sweat causes allergic reaction, red swelling, etc. Therefore, it is necessary to absorb or remove sweat discharged from the skin, so that adverse reactions such as skin allergy and redness and swelling are avoided.
The invention patent CN111759359A discloses a multichannel fiber-based sweat collecting and sensing system and a preparation method thereof. The sweat sensing system is a multi-layer fabric, the inner layer of the sweat sensing system comprises a multi-channel fiber-based sweat collecting system and a gate electrode, and the outer layer is provided with a source electrode and a drain electrode. The sweat collecting system comprises a plurality of sweat transmission channels and a hydrophobic region which are distributed alternately and are collected in the sweat collecting region, each sweat transmission channel is provided with a plurality of hydrophilic-hydrophobic gradient units, the contact angles of the hydrophilic-hydrophobic gradient units are gradually increased outwards from the position close to the sweat collecting region, and the sweat collecting system with a self-driven wicking effect is formed by regulating and controlling the fabric organization structure of the hydrophilic-hydrophobic gradient units, so that sweat is directionally transmitted to the sweat collecting region from the outside through the hydrophilic-hydrophobic gradient units. The grid electrode and the source electrode and the drain electrode are intersected in the sweat collecting area and are conductive polymers with high transconductance values and three-dimensional nanometer net-shaped and flower-shaped structures, and the signal amplification efficiency of the sensor is high, so that the sensitivity and the detection rate of sweat detection are improved. However, this patent is mainly used for sweat collection and then detection of the collected sweat, but does not disclose electrodes for applying an electric field to a living body, nor is it used for eliminating or effectively reducing side effects caused by long-term application of an electric field to human skin.
The matters in the background section are only those known to the inventors and do not, of course, represent prior art in the field.
Disclosure of Invention
Aiming at one or more of the problems in the prior art, the invention provides an electrode pad with a moisture absorption structure applied to human skin, which is characterized by comprising a support, an electrode, a water storage area and a water absorption layer, wherein the electrode and the water storage area are attached to the surface of the support facing the human skin in a juxtaposed manner, the first surface of the water absorption layer is attached to the electrode and the water storage area, and the second surface is attached to the human skin.
According to one aspect of the invention, a water barrier is also included for separating the water storage region from the electrode.
According to one aspect of the invention, the electrode includes a circuit layer and a dielectric layer.
According to one aspect of the invention, the water barrier is a water-resistant coating between the water storage region and the electrode.
According to one aspect of the invention, the electrode is formed from one or more electrode segments.
According to one aspect of the invention, the shape of the electrode segments comprises circular, square, polygonal.
According to one aspect of the invention, the electrode segments are spaced apart by at least 1mm.
According to one aspect of the invention, the circuit layer and the dielectric layer are connected by soldering, adhesive bonding.
According to one aspect of the invention, the dielectric layer has a dielectric constant of at least 100.
According to one aspect of the invention, the dielectric layer is a ceramic dielectric material.
According to one aspect of the invention, the water-absorbing layer is made of a water-absorbing material.
According to one aspect of the invention, the water absorbing material is one or a combination of a plurality of sponges, open-cell foam and gel.
According to one aspect of the invention, the impedance of the 25.4mm by 1.0mm volume of material in the water-absorbing layer is not higher than 200 ohm when alternating current is 200KHz
According to one aspect of the invention, the impedance of the 25.4mm by 1.0mm volume of material in the water-absorbing layer is between 15 and 30 ohms at 200KHz ac.
According to one aspect of the invention, the water storage area is made of a water storage material.
According to one aspect of the invention, the water storage material comprises one or more of a sponge, an open-cell foam, and a superabsorbent resin.
According to one aspect of the present invention, the water storage material has a water absorption of not less than 100%.
According to one aspect of the invention, the support is an elastic support
According to one aspect of the invention, the elastic support is made of one or more of a mesh, a braid, an elastic backing.
The invention also provides a preparation method of the electrode pad with the moisture absorption structure applied to the skin of the human body, which comprises the following steps:
s1, attaching an electrode and a water storage area to the surface of a support surface facing the skin of a human body in a juxtaposed manner;
S2, attaching the first surface of the water absorption layer to the electrode and the water storage area, and attaching the second surface of the water absorption layer to the skin of a human body.
The invention aims to provide an electrode pad with a moisture absorption structure applied to human skin and a preparation method thereof, which can quickly and effectively absorb sweat discharged by a human body, avoid the phenomena of skin allergy, red swelling and the like of the human body in a sweat area and can apply an electric field to the human skin for a long time.
Detailed Description
Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, or communicable with each other, directly connected, indirectly connected via an intermediary, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.
The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Example 1:
Fig. 1 shows an electrode pad with a moisture absorption structure applied to human skin according to a first embodiment of the present invention, the electrode pad includes a support 7, an electrode 8, a water storage area 3, and a water absorption layer 2, the electrode 8 and the water storage area 3 are attached to a surface of the support 7 facing the human skin 1 in a juxtaposed manner, a first surface 9 of the water absorption layer 2 is attached to the electrode 8 and the water storage area 3, and a second surface 10 is attached to the human skin.
The electrode pad with the moisture absorption structure applied to the human skin can quickly and effectively absorb sweat discharged by the human skin 1 through the moisture absorption layer 2 and the moisture absorption layer 2, avoid skin allergy, red swelling and other phenomena in a sweat area, and can be used for applying an electric field to the human skin 1 for a long time. The electrode pad stores the collected sweat through the water storage area, so that the stored sweat does not flow back to the human skin 1, allergy and red swelling of the human skin 1 are prevented, the stored sweat does not flow back to the water absorption layer 9, the electrode 8 is prevented from being corroded, the service life of the electrode pad is prolonged, and the working efficiency of the electrode pad is improved.
Compared with the prior art, the sweat absorbing device has the beneficial effects that sweat discharged by a human body is absorbed rapidly and effectively, and skin allergy, redness and swelling and the like of the human body in a sweat area are avoided. 2. The collected sweat is stored in the water storage area, so that the sweat is prevented from flowing backwards.
Example 2:
fig. 2 shows an electrode pad having a hygroscopic structure applied to the skin of a human body according to a second embodiment of the present invention, which comprises a water-blocking area 6 for separating the water-storage area 3 from the electrode 8, in addition to the structure of the first embodiment.
The electrode pad with the moisture absorption structure applied to the human skin can quickly and effectively absorb sweat discharged by the human body through the moisture absorption layer 2, avoid the phenomena of skin allergy, red swelling and the like of the sweat area, and can be used for applying an electric field to the human skin for a long time. The electrode pad stores the collected sweat through the water storage area, so that the stored sweat does not flow backwards. The water-proof area 6 can completely isolate the water-storing area 3 rich in sweat from the electrode 8, prevent the moisture in sweat from corroding the electrode 8, prolong the service life of the electrode pad and improve the working efficiency of the electrode pad.
According to another embodiment of the invention, the electrode 8 comprises a circuit layer 4 and a dielectric layer 5.
According to another embodiment of the invention, the water barrier 6 is a waterproof coating between the water reservoir 3 and the electrode 8. The waterproof coating has small volume, easy processing and manufacturing and good waterproof effect.
According to another embodiment of the invention, the electrode 8 is formed by connecting one or more electrode segments 8-1, 8-2, 8-3 via wires 11, which may be connected in parallel, as shown in fig. 3.
According to another embodiment of the invention, the shape of the electrode segments 8-1, 8-2, 8-3 comprises a circle, a square, a polygon.
According to another embodiment of the invention, the electrode segments 8-1, 8-2, 8-3 are spaced apart by at least 1mm.
According to another embodiment of the invention, the circuit layer 4 and the dielectric layer 5 are connected by soldering, adhesive bonding.
According to another embodiment of the invention, the dielectric layer 5 has a dielectric constant of at least 100.
According to another embodiment of the invention, the dielectric layer 5 is a ceramic dielectric material.
According to another embodiment of the invention, the water-absorbing layer 2 is made of a water-absorbing material.
According to another embodiment of the present invention, the water absorbing material is one or a combination of a plurality of sponges, open-cell foam and gel.
According to another embodiment of the invention, the impedance of the material in the water absorbing layer 2 is not higher than 200 ohm, preferably between 15 and 30 ohm, at an alternating current of 200KHz, 25.4mm by 1.0mm volume.
According to another embodiment of the invention, the water storage area 3 is made of a water storage material.
According to another embodiment of the present invention, the water storage material comprises one or a combination of a sponge, an open-cell foam, and a super absorbent resin.
According to another embodiment of the present invention, the water storage material has a water absorption of not less than 100%.
According to another embodiment of the invention, the support 7 is an elastic support.
According to another embodiment of the invention, the elastic support is made of one or more of a mesh, a braid, an elastic backing.
According to another embodiment of the present invention, a method for preparing an electrode pad having a moisture absorbing structure applied to human skin includes the steps of:
S1, attaching an electrode and a water storage area 3 to the surface of a support surface facing the skin of a human body in a juxtaposed manner;
s2, attaching the first surface of the water absorption layer to the electrode and the water storage area 3, and attaching the second surface of the water absorption layer to the skin of a human body.
In summary, the electrode pad with the moisture absorption structure for human skin disclosed by the invention comprises the support 7, the electrode 8, the water storage area 3 and the water absorption layer 2, wherein the electrode 8 and the water storage area 3 are attached to the surface of the support 7 facing the human skin 1 in a juxtaposed manner, the first surface 9 of the water absorption layer 2 is attached to the electrode 8 and the water storage area 3, and the second surface 10 is attached to the human skin. The electrode pad provided by the invention can quickly and effectively absorb sweat discharged by human skin 1 through the water absorption layer 2, avoids skin allergy, redness, swelling and other phenomena in a sweat area, and can be used for applying an electric field to human skin 1 for a long time. The electrode pad stores the collected sweat through the water storage area, so that the stored sweat does not flow back to the human skin 1, allergy and redness of the human skin 1 are prevented, the stored sweat does not flow back to the water absorption layer 9, moisture in the sweat is prevented from corroding the electrode 8, the service life of the electrode pad is prolonged, and the working efficiency of the electrode pad is improved. The electrode pad of the present invention further comprises a water barrier 6 for separating said water storage area 3 from said electrode 8. The electrode pad provided by the invention can completely isolate the sweat-rich water storage area 3 from the electrode 8 through the water isolation area 6, so that moisture in sweat is prevented from corroding the electrode 8, the service life of the electrode pad is prolonged, and the working efficiency of the electrode pad is improved.
It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present invention, and the present invention is not limited thereto, but may be modified or substituted for some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.