Novel electrode adaptive to thermal underwear with electrocardiogram monitoring function and preparation method of novel electrode

Abstract

The invention relates to the technical field of electrocardio monitoring technologies, in particular to an electrode matched with thermal underwear with an electrocardio monitoring function and a preparation method of the electrode, and the electrode comprises a substrate layer which is used for being fixed on the inner side of the thermal underwear; the conducting layer is located on the substrate layer and used for making contact with the skin and transmitting electrocardiosignals; the liquid storage cavity is positioned below the conductive layer and is used for storing electrolyte or conductive liquid metal; the invention provides a novel electrode adaptive to thermal underwear with an electrocardio monitoring function, and aims to realize effective monitoring of electrocardio signals on the premise of not influencing the comfort level of the thermal underwear. The electrode is preset on the underwear and is not attached to the skin when monitoring is not needed, and when monitoring is needed, preset electrolyte or conductive liquid metal is released to the conductive layer through an activation mechanism, and the electrode attaching and conductive function is completed. The electrode is simple in structure and convenient to use, the accuracy and comfort of electrocardiogram monitoring can be effectively improved, and medical requirements are met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrocardio monitoring technology, and in particular to an electrode adapted to a warm-keeping underwear with electrocardio monitoring function and a preparation method thereof. BACKGROUND

[0002] In the field of electrocardio monitoring, traditional electrocardio electrodes have significant limitations, especially when worn for a long time and used in cold environments. Although metal electrodes and disposable electrode patches are widely used, they often have poor contact with the skin, easily causing skin allergies, and cannot maintain an appropriate distance from the skin when monitoring is not needed, leading to discomfort or allergic reactions. In addition, the use of disposable electrode patches causes resource waste.

[0003] Therefore, developing a new type of electrode that can maintain comfort while quickly activating the conductive function when needed, while reducing resource waste, has become a technical problem to be solved in the field. The present application is based on this background and aims to provide a new type of electrode adapted to a warm-keeping underwear with electrocardio monitoring function and a preparation method thereof, in order to improve the accuracy and comfort of electrocardio monitoring, while meeting the needs of environmental protection and economy. SUMMARY

[0004] To solve the above problems, the present application provides an electrode adapted to a warm-keeping underwear with electrocardio monitoring function and a preparation method thereof.

[0005] To achieve the above-mentioned purposes, the technical solution adopted by the present application is as follows:

[0006] An electrode adapted to a warm-keeping underwear with electrocardio monitoring function, comprising:

[0007] a base layer for fixing inside the warm-keeping underwear;

[0008] a conductive layer located above the base layer for contacting the skin and transmitting electrocardio signals;

[0009] a liquid storage cavity located below the conductive layer for storing electrolyte liquid or conductive liquid metal;

[0010] a control module for activating the conductive function.

[0011] As a preferred embodiment, the conductive layer comprises conductive rubber, conductive fabric or conductive liquid metal.

[0012] As a preferred embodiment, the liquid storage cavity adopts a microcapsule structure, and the inner cavity of the liquid storage cavity is provided with conductive liquid metal.

[0013] As a preferred embodiment, the control module comprises a manual activation device and an automatic sensing device.

[0014] As preferred, the manual activation device comprises a control button, and the automatic induction device comprises a sensor and a micro pump.

[0015] As preferred, the control module is connected with the liquid storage bin.

[0016] A preparation method of the adaptive warm-keeping underwear with electrocardio monitoring function, the preparation method is applied to the electrode of the adaptive warm-keeping underwear with electrocardio monitoring function, and the preparation method comprises the following steps of:

[0017] Silica gel material is selected as the material of the base layer, and the silica gel material is cut into a size and shape suitable for the inside of the warm-keeping underwear;

[0018] Conductive rubber is selected as the material of the conductive layer, and the conductive rubber is fixed on the base layer;

[0019] A liquid storage cavity is arranged below the conductive layer, and electrolyte liquid or conductive liquid metal is filled in the liquid storage bin;

[0020] The control module is connected with the liquid storage bin to activate the conductive function.

[0021] The present application has the following beneficial effects:

[0022] The present application provides a new electrode of the adaptive warm-keeping underwear with electrocardio monitoring function, which aims to realize effective monitoring of electrocardio signals without affecting the comfort of the warm-keeping underwear. The electrode is preinstalled on the underwear, and does not need to be attached to the skin when monitoring is not needed. When monitoring is needed, the preinstalled electrolyte liquid or conductive liquid metal is released to the conductive layer through an activation mechanism to complete the electrode attachment and conductive function. The electrode structure is simple, convenient to use, can effectively improve the accuracy and comfort of electrocardio monitoring, and meets the medical requirements. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 The electrode of the warm-keeping underwear in the embodiment of the present application is shown in the figure;

[0024] Fig. 2 The preparation method flow chart of the warm-keeping underwear in the embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0025] Please refer to Figs. 1-2 The present application relates to an electrode of the adaptive warm-keeping underwear with electrocardio monitoring function and a preparation method thereof, which specifically comprises the following steps of:

[0026] The base layer is used for being fixed on the inside of the warm-keeping underwear;

[0027] The conductive layer is located above the base layer, and is used for contacting the skin and transmitting electrocardio signals;

[0028] A liquid storage cavity is located below the conductive layer to store electrolyte or conductive liquid metal.

[0029] A control module is used to activate the conductive function.

[0030] The conductive layer is made of high-sensitivity conductive material, such as conductive rubber, conductive fabric or conductive liquid metal, to ensure the accuracy of signal transmission.

[0031] The liquid storage cavity is designed to remain closed when not needed for monitoring, preventing evaporation or leakage of electrolyte or conductive liquid metal.

[0032] The control module can be manual or automatic to adapt to different use scenarios.

[0033] Further:

[0034] 1. The preparation of the base layer includes:

[0035] Choose soft and breathable silica gel material as the base layer material.

[0036] Cut the silica gel into the size and shape suitable for the inside of thermal underwear.

[0037] 2. The preparation of the conductive layer includes:

[0038] Choose conductive rubber as the conductive layer material, ensuring good elasticity and conductivity.

[0039] Fix the conductive rubber layer on the base layer to ensure a smooth surface in contact with the skin.

[0040] 3. The preparation of the liquid storage cavity includes:

[0041] Set the liquid storage cavity below the conductive layer, which adopts a microcapsule structure containing conductive liquid metal.

[0042] Ensure that the liquid storage cavity remains closed when not needed for monitoring, preventing evaporation or leakage of conductive liquid metal.

[0043] 4. The preparation of the control module includes:

[0044] Design a manual button as the control module, which is connected to the microcapsule structure to trigger the microcapsule rupture when needed for monitoring.

[0045] The button is designed to be easy to operate, allowing users to easily activate the conductive function when needed.

[0046] Example 2

[0047] Based on the above example 1, the electrode preparation of the present application further includes:

[0048] 1. Preparation of the base layer:

[0049] A breathable cotton fabric material is chosen as the base layer to improve breathability and comfort.

[0050] The cotton fabric is cut to the appropriate size for thermal underwear and secured on the inside.

[0051] 2. Preparation of the conductive layer:

[0052] A conductive fabric is chosen as the material for the conductive layer, which has good flexibility and conductivity.

[0053] The conductive fabric layer is fixed on top of the base layer, ensuring a smooth surface for contact with the skin.

[0054] 3. Preparation of the liquid storage cavity:

[0055] A liquid storage cavity is placed below the conductive layer, designed as a reusable sealed container containing electrolyte solution.

[0056] The liquid storage cavity is kept closed when not needed for monitoring, preventing evaporation or leakage of the electrolyte solution.

[0057] 4. Preparation of the control module:

[0058] An automatic sensing control module is designed, which can monitor the user's heart rate changes and automatically release the electrolyte solution.

[0059] The control module includes sensors and a micro pump, which can automatically release the electrolyte solution to the conductive layer when detecting heart rate changes.

[0060] In two embodiments, the preparation of the electrode includes the integration of the base layer, conductive layer, liquid storage cavity, and control module to achieve effective monitoring of the electrocardiogram signal. These embodiments demonstrate how to choose different materials and control modules to achieve the function of the electrode according to different use scenarios and needs. Through these embodiments, it can be seen that the new electrode of the invention has flexibility and adaptability in design and function, and can meet the needs of different users.

[0061] The present invention provides a new type of electrode for thermal underwear with electrocardiogram monitoring function, which aims to achieve effective monitoring of the electrocardiogram signal without affecting the comfort of the thermal underwear. The electrode is pre-installed on the underwear and does not adhere to the skin when not needed for monitoring. When needed for monitoring, the pre-installed electrolyte solution or conductive liquid metal is released to the conductive layer through the activation mechanism, completing the electrode adhesion and conductive function. The electrode of the invention has a simple structure and is easy to use, which can effectively improve the accuracy and comfort of electrocardiogram monitoring and meet the medical requirements.

[0062] Example 3

[0063] Based on the above embodiments, this embodiment proposes a new design, specifically including:

[0064] I. Electrode structure design

[0065] 1. Self-adaptive flexible electrode structure

[0066] Adopting biomimetic micro-scales / multi-level fractal structure electrodes (such as fish scale-like laminates, dendritic fractals), the electrode automatically adjusts the contact area when the fabric is stretched, keeping the impedance stable (impedance fluctuation <5Ω when stretched by 30%).

[0067] Using conductive fibers (such as silver nanowires, graphene fibers) and elastic substrates (such as spandex, TPU) to achieve synchronous stretching of the electrode and underwear (stretchability ≥50%), avoiding poor contact caused by movement or breathing.

[0068] Designing non-planar, asymmetric three-dimensional structure electrodes (such as micro-bumps, wavy, grid-like, biomimetic structure), perfectly fitting the complex curved surface of different parts of the human body (especially the chest, under the ribs) in dynamic and static state, significantly reducing the feeling of oppression and foreign body, while increasing the effective contact area.

[0069] Porous mesh structure electrode, improving air permeability and sweat permeability, reducing skin irritation.

[0070] 2. Integrated structure

[0071] Directly weaving or printing the electrode, wire, and signal processing module into the underwear fabric to form seamless integration, avoiding the risk of traditional patch electrode detachment.

[0072] 3. Detachable electrode design,

[0073] Through shape memory materials (such as nickel-titanium alloy fibers) or air / liquid pressure adjustment layers, the electrode automatically fits the chest contour of users of different body types, supporting the separation of electronic components during underwear washing. Self-adaptive fitting structure

[0074] II. Fabric-electrode integrated topology circuit design

[0075] The electrode is directly woven as part of the thermal underwear fabric, using conductive fiber embroidery / thermal adhesive direct printing to form a gradient conductive network (high conductivity on the surface, insulation on the bottom), avoiding the foreign body sensation of traditional electrode stitching.

[0076] The electrode is embedded with a micro impedance sensor to monitor the skin-electrode contact impedance in real time, dynamically adjusting the input current (frequency adjustable from 1kHz to 100kHz) through PID algorithm to offset the signal attenuation caused by fabric displacement.

[0077] III. Preparation process design

[0078] Spray monomer-containing atomized liquid on the surface of thermal underwear base (such as polyester / spandex), initiate polymerization under 40℃ UV light to directly form embedded conductive polymer electrode (PEDOT:PSS), avoid high temperature damage to fabric elasticity, electrode-substrate bonding force > 3N / cm.

[0079] Laser-induced graphene (LIG) direct writing technology, CO2 laser scans on thermal fabric with polyimide coating, local carbonization generates porous graphene electrode pattern, line width precision reaches 50μm.

[0080] Four, function and performance optimization

[0081] Anti-interference design

[0082] Electrode surface covered with electromagnetic shielding layer (such as MXene coating), reducing environmental electromagnetic interference.

[0083] Differential signal acquisition technology, offset motion artifacts through double electrode symmetric design.

[0084] Self-cleaning and antibacterial function

[0085] Surface coated with photocatalytic material (such as titanium dioxide), using body temperature or environmental light to decompose organic matter in sweat.

[0086] Nanosilver or chitosan antibacterial coating, inhibiting bacterial growth.

[0087] Energy harvesting and self-powered

[0088] Integrated triboelectric nanogenerator (TENG), converting human body motion mechanical energy into electrical energy to power low-power sensors.

[0089] Five, material and process innovation

[0090] New conductive materials

[0091] Conductive hydrogel: high conductivity (>10S / m) and biocompatibility, can be long-term attached to the skin without the need for conductive paste.

[0092] Liquid metal alloy (such as gallium indium tin) injected into micro-channel fibers, realizing stretchable and stable electrical contact.

[0093] Biodegradable materials (such as polylactic acid-polyglycolic acid copolymer) as substrate, environmentally friendly and reduce the risk of allergies.

[0094] Low interfacial impedance / high electrochemical stability: ensure long-term reliable signal acquisition.

[0095] Washing resistance / friction resistance: solve the problem of performance degradation after multiple washes (such as material self-repairing characteristics, special packaging).

[0096] Biocompatibility and low allergenicity: safety assurance for direct contact with skin.

[0097] Environment-responsive smart materials: using temperature-sensitive and humidity-sensitive conductive materials (such as certain ionic gels and hydrogels), their conductivity or contact properties are optimized with changes in skin temperature and humidity, automatically adapting to different environments (cold and dry outdoor vs. warm and humid indoor).

[0098] Low-temperature high-efficiency forming / curing process:

[0099] For new conductive materials (especially heat-sensitive materials), develop low-temperature (<80℃) rapid curing (light curing, UV curing, microwave curing) or room temperature forming (such as spraying, blade coating, cold stamping) processes to avoid thermal damage to thermal underwear substrates (such as chemical fibers, wool), protect fabric performance, and expand material selection range.

[0100] High-precision patterning technology:

[0101] Apply precise screen printing, inkjet printing, laser direct writing, transfer printing, etc. to realize high-resolution, high-adhesion, and high-flexibility electrode pattern making on complex curved or elastic fabrics, realize complex electrode structures (such as micro-patterns, invisible patterns), and improve production efficiency and consistency.

[0102] In-situ generation / integration process:

[0103] During the weaving or finishing process of thermal underwear, directly generate conductive layers (such as chemical plating, electrochemical deposition, vapor deposition) or embed pre-made flexible electrode modules (such as hot melt bonding, ultrasonic welding, seamless weaving embedding) at predetermined positions to realize firm and seamless combination of electrodes and underwear substrates, improve combination firmness and durability (water washing resistance), and simplify production process.

[0104] Peelable / replaceable interface process:

[0105] Design special electrode-wire connection structure (such as magnetic connection, low-melting-point welding point, detachable buckle) or use conductive adhesive to realize easy replacement of electrode modules, solve the problem of reliable connection and replacement of modular electrodes.

[0106] Green preparation process: 3D printing technology directly forms electrodes and wires, reduces material waste, and improves material hydrophilicity and conductivity through low-temperature plasma surface treatment without chemical reagents.

[0107] Six, intelligentization and data management design

[0108] AI-assisted diagnosis

[0109] Built-in edge computing chip, real-time analysis of electrocardio signals, identification of arrhythmia (such as atrial fibrillation, premature beat) and early warning.

[0110] Adapt to individual differences through machine learning algorithms to improve signal quality.

[0111] Wireless communication and privacy protection

[0112] Use Bluetooth Low Energy (BLE) or Ultra-Wideband (UWB) technology to transmit data and reduce power consumption.

[0113] Data encryption storage and transmission, in line with medical data security standards (such as HIPAA).

[0114] Self-cleaning / antibacterial function:

[0115] Add photocatalytic materials (such as titanium dioxide), slow-release antibacterial agents (such as silver ions), or materials with antimicrobial properties (such as graphene) to the electrode surface or material, reduce dirt accumulation and bacterial growth caused by sweat and sebum, improve hygiene, extend service life, and reduce skin irritation.

[0116] State self-sensing and feedback:

[0117] Integrate micro sensors (such as impedance sensors, temperature sensors) into or near the electrode to monitor electrode-skin contact impedance, electrode temperature, skin humidity, etc. in real time, and feed the information back to the ECG monitoring module for signal quality assessment or algorithm compensation (such as reminding users to adjust when impedance is too high), improving the reliability of ECG data and user experience.

[0118] Energy harvesting / self-powered integration:

[0119] Explore the use of temperature difference (thermoelectric materials), human motion (piezoelectric / frictional materials) to collect micro energy in the electrode or nearby area, providing auxiliary power for ECG monitoring module or low-power Bluetooth transmission (conceptual, need to evaluate feasibility), extending device endurance or achieving passive / semi-passive operation.

[0120] Link with intelligent temperature control:

[0121] Use ECG signals (such as heart rate variability, stress index) or physiological states (such as activity state) monitored by electrodes as input to feedback control the heating elements of thermal underwear, achieving intelligent temperature control based on physiological state (such as automatically adjusting heating power when detecting user sleep or rest).

[0122] Seven, application scenario expansion design

[0123] Multi-modal health monitoring

[0124] Integrate temperature, respiration, and blood oxygen sensors to build a comprehensive health monitoring system, and link with intelligent mattresses or seats to achieve all-weather monitoring.

[0125] Special population adaptation

[0126] Different electrode layouts are designed for the elderly, athletes, postoperative patients (such as 12-lead simplified version).

[0127] Waterproof electrode design supports monitoring while swimming or showering.

[0128] The above embodiments only describe the preferred embodiments of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by ordinary engineering technicians in the art shall fall within the protection scope determined by the claims of the present application.

Claims

1. An electrode adapted to thermal underwear with ECG monitoring function, characterized in that, include: The base layer is used to secure it to the inside of thermal underwear; The conductive layer, located above the base layer, is used to contact the skin and transmit electrocardiogram signals; The liquid storage chamber, located below the conductive layer, is used to store electrolyte liquid or conductive liquid metal; The control module is used to activate the conductivity function.

2. The electrode for adapting thermal underwear with ECG monitoring function according to claim 1, characterized in that, The conductive layer includes conductive rubber, conductive fabric, or conductive liquid metal.

3. The electrode for adapting thermal underwear with ECG monitoring function according to claim 1, characterized in that, The liquid storage chamber adopts a microcapsule structure, and the inner cavity of the liquid storage chamber is filled with conductive liquid metal.

4. The electrode for adapting thermal underwear with ECG monitoring function according to claim 1, characterized in that, The control module includes a manual activation device and an automatic sensing device.

5. The electrode for adapting thermal underwear with ECG monitoring function according to claim 4, characterized in that, The manual activation device includes a control button, and the automatic sensing device includes a sensor and a micro pump.

6. The electrode for adapting thermal underwear with ECG monitoring function according to claim 1, characterized in that, The control module is connected to the liquid storage tank.

7. A method for preparing a thermal underwear with ECG monitoring function, wherein the method is applied to the electrodes of the thermal underwear with ECG monitoring function as described in any one of claims 1-6, characterized in that, include: Silicone material was selected as the base layer material, and the silicone material was cut into a size and shape suitable for the inside of thermal underwear. Conductive rubber is selected as the conductive layer material, and the conductive rubber is fixed on the base layer; A liquid storage chamber is provided below the conductive layer, and the liquid storage chamber is filled with electrolyte liquid or conductive liquid metal; The conductive function is activated by connecting the control module to the liquid storage tank.

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