技术领域technical field
本发明属于医疗器械(用具)/心电电极领域，具体涉及一种抑制运动伪迹石墨烯柔性心电干电极。The invention belongs to the field of medical equipment (apparatus)/electrocardiogram electrodes, in particular to a graphene flexible electrocardiogram dry electrode for suppressing movement artifacts.
背景技术Background technique
在当今社会，心脏病是人类健康的头号杀手。全世界1/3的人口死亡是因心脏病引起的，而我国每年有几十万人死于心脏病。心脏病已是心脑血管疾病中最容易危害中老年人的身体健康和生命的疾病。对早期和突发心脏病的长期和动态观测，以捕捉到短暂非持续性的异常心电变化，尤其是一过性心律失常及短暂的心肌缺血发作症状，对诊断心脏病、判断疗效和挽救生命至关重要。In today's society, heart disease is the number one killer of human health. 1/3 of the world's population deaths are caused by heart disease, while hundreds of thousands of people die of heart disease every year in my country. Heart disease is the most likely disease in cardiovascular and cerebrovascular diseases to endanger the health and life of middle-aged and elderly people. Long-term and dynamic observation of early and sudden heart disease to capture short-term non-sustained abnormal ECG changes, especially transient arrhythmia and transient myocardial ischemic attack symptoms, which are useful for diagnosing heart disease, judging curative effect and Saving lives is critical.
根据是否采用导电凝胶，电极主要分为湿电极和干电极。目前医疗中常用于检测心电的是一次性导电凝胶湿电极，湿电极的不足之处在于其准备工作复杂，导电胶随时间逐渐风干而造成测量误差，容易造成皮肤过敏，影响舒适度，不适用于长时间监测。干电极不使用导电膏(或凝胶)或者其他电介质作为皮肤和电极之间的耦合通路，而是皮肤和电极之间的直接接触或者电容耦合形成通路的电极。而现有干电极大多数都是以金属材料为主，金属材料电极抗腐蚀性低，抗干扰和抗噪声能力均差，在微电流通过时容易产生极化。同时金属干电极穿戴舒适性较差，运动伪迹明显。According to whether conductive gel is used, electrodes are mainly divided into wet electrodes and dry electrodes. At present, the disposable conductive gel wet electrode is commonly used in medical treatment to detect ECG. The disadvantage of the wet electrode is that its preparation is complicated, and the conductive gel gradually dries with time, causing measurement errors, easily causing skin allergies, and affecting comfort. Not suitable for long-term monitoring. Dry electrodes do not use conductive paste (or gel) or other dielectrics as the coupling path between the skin and the electrode, but direct contact or capacitive coupling between the skin and the electrode forms the electrode of the path. However, most of the existing dry electrodes are mainly made of metal materials. Metal material electrodes have low corrosion resistance, poor anti-interference and anti-noise capabilities, and are prone to polarization when micro-current passes. At the same time, metal dry electrodes are less comfortable to wear and have obvious motion artifacts.
目前尚缺乏可长期舒适穿戴的动态获取心电信号的传感器。导电海绵是心电电极材料的最新研究方向，其优势在于导电性不受温度和湿度的影响，机械柔软度高，皮肤附着力好，同时也增加了皮肤-电极界面的接触面积，维持了低阻抗，减少了运动伪迹。石墨烯是目前已知的最薄最轻的一种材料，单层的石墨烯只有一个碳原子的厚度。石墨烯也是世界上导电性最好的材料，电子在其中的运动速度达到了光速的1/300，远远超过了电子在一般导体中的运动速度。由于石墨烯仅由碳元素组成且结构完美，是制造超灵敏生物传感器的理想材料。在导电海绵上加上石墨烯涂层，可以极大的增强电极的导电性能。At present, there is still a lack of sensors that can dynamically acquire ECG signals that can be worn comfortably for a long time. Conductive sponge is the latest research direction of ECG electrode materials. Its advantages are that its conductivity is not affected by temperature and humidity, it has high mechanical softness and good skin adhesion. It also increases the contact area of the skin-electrode interface and maintains a low impedance, reducing motion artifacts. Graphene is the thinnest and lightest material known so far. A single layer of graphene is only one carbon atom thick. Graphene is also the most conductive material in the world. The speed of electrons in it reaches 1/300 of the speed of light, far exceeding the speed of electrons in general conductors. Since graphene is composed only of carbon elements and has a perfect structure, it is an ideal material for the manufacture of ultrasensitive biosensors. Adding a graphene coating to the conductive sponge can greatly enhance the conductivity of the electrode.
同类型现有专利(CN102920452A):一种基于石墨烯的柔性冠状心电电极。此专利所述的基于石墨烯的柔性冠状心电电极质地柔软，可弯曲；它的冠状阵列增加了心电电极与皮肤的接触面积，使得心电信号增强，信噪比增加，稳定性改善。石墨烯是最好的导电材料，但是石墨烯与金属电极之间存在着接触电阻，不能有效的提高电极的导电性能。该专利也没有提及可以在动态情况下检测脑电或抑制运动伪迹。Existing patent of the same type (CN102920452A): a flexible coronary ECG electrode based on graphene. The graphene-based flexible coronary ECG electrode described in this patent is soft and bendable; its coronal array increases the contact area between the ECG electrode and the skin, which enhances the ECG signal, increases the signal-to-noise ratio, and improves stability. Graphene is the best conductive material, but there is a contact resistance between graphene and the metal electrode, which cannot effectively improve the conductivity of the electrode. The patent also makes no mention of being able to detect EEG or suppress motion artifacts in dynamic situations.
发明内容Contents of the invention
本发明的目的是提供一种抑制运动伪迹石墨烯柔性心电干电极，克服了传统湿电极对皮肤的刺激和损伤，非一次性电极，可长期佩戴使用。在动态情况下，电极的柔性材料可以很好贴合皮肤结构，电极结构也能有效地减少噪声，抑制运动伪迹。石墨烯涂层，极大地增强了电极的导电性能，提高了微弱电信号数据采集的精准度。The purpose of the present invention is to provide a graphene flexible ECG dry electrode that suppresses motion artifacts, which overcomes the skin irritation and damage caused by traditional wet electrodes, and is non-disposable, which can be worn for a long time. Under dynamic conditions, the flexible material of the electrode can fit the skin structure well, and the electrode structure can also effectively reduce noise and suppress motion artifacts. The graphene coating greatly enhances the conductivity of the electrode and improves the accuracy of data collection of weak electrical signals.
本发明解决上述技术问题的技术方案如下：一种抑制运动伪迹石墨烯柔性心电干电极，由基底层、织物导电层、抑制运动伪迹层、触面层和绝缘遮挡层组成。其特征在于：柔性织物构成所述基底层；导电布构成所述织物导电层；第一缓冲层、加强层和第二缓冲层构成所述抑制运动伪迹层，导电海绵构成所述第一缓冲层和第二缓冲层，导电布构成所述加强层；石墨烯涂层构成所述触面层；绝缘织物构成所述绝缘遮挡层。The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a graphene flexible ECG dry electrode for suppressing motion artifacts, which is composed of a base layer, a fabric conductive layer, a motion artifact suppressing layer, a contact surface layer and an insulating shielding layer. It is characterized in that: flexible fabric constitutes the base layer; conductive cloth constitutes the fabric conductive layer; the first buffer layer, the reinforcing layer and the second buffer layer constitute the motion artifact suppression layer, and conductive sponge constitutes the first buffer layer and the second buffer layer, the conductive cloth constitutes the reinforcing layer; the graphene coating constitutes the contact layer; the insulating fabric constitutes the insulating shielding layer.
优选的，所述织物导电层设置在所述基底层上，放置中心位置且通过医用粘胶与其粘合；所述抑制运动伪迹层设置在所述织物导电层上，放置中心位置且通过导电银胶与其粘合；所述抑制运动伪迹层内部各层均由导电银胶粘合；所述触面层设置在所述抑制运动伪迹层上，放置中心位置且通过导电银胶与其粘合；所述绝缘织物遮挡层中心镂空，设置在织物导电层上，完全覆盖且通过缝纫连接、固定。Preferably, the fabric conductive layer is arranged on the base layer, placed at a central position and bonded to it by medical adhesive; Silver glue is bonded to it; each layer inside the described anti-motion artifact layer is bonded by conductive silver glue; the contact surface layer is arranged on the described anti-motion artifact layer, placed in a central position and bonded to it by conductive silver glue combined; the center of the insulating fabric shielding layer is hollowed out, set on the fabric conductive layer, completely covered and connected and fixed by sewing.
优选的，所述柔性织物是具有一定柔韧性和弹性的莱卡布块，主要用来支撑电极。柔性织物基底合适的压力既保证心电电极与人体紧密贴合，又保障穿戴的舒适性。Preferably, the flexible fabric is a Lycra cloth block with certain flexibility and elasticity, which is mainly used to support the electrodes. The proper pressure of the flexible fabric base not only ensures the close fit of the ECG electrodes and the human body, but also ensures the comfort of wearing.
优选的，所述导电布的基材为聚酯纤维，表面的导电阻抗值小于等于0.5Ω/m2，具有良好的导电能。Preferably, the base material of the conductive cloth is polyester fiber, and the conductive resistance value of the surface is less than or equal to 0.5Ω/m2 , which has good electrical conductivity.
优选的，所述织物导电层的导电布厚度小于等于0.05mm，整体宽度为40-60mm，长度为70-100mm，两端为以其宽为直径的半圆，具有导电和电磁屏蔽的作用。Preferably, the thickness of the conductive fabric of the fabric conductive layer is less than or equal to 0.05mm, the overall width is 40-60mm, the length is 70-100mm, and the two ends are semicircles whose width is the diameter, which has the functions of conduction and electromagnetic shielding.
优选的，所述加强层导电布厚度小于等于0.05mm，整体宽度为20-40mm，长度为50-80mm，两端为以其宽为直径的半圆。其作用是增加导电性和加强电极，使其不易发生永久形变，在一定程度上，使电极触面层紧贴皮肤表面，在动态情况下使电极与皮肤表面保持相对平行，抑制运动伪迹。Preferably, the thickness of the reinforcing layer conductive cloth is less than or equal to 0.05mm, the overall width is 20-40mm, the length is 50-80mm, and the two ends are semicircles whose width is the diameter. Its function is to increase the conductivity and strengthen the electrode, so that it is not easy to undergo permanent deformation. To a certain extent, the electrode contact layer is close to the skin surface, and the electrode is kept relatively parallel to the skin surface under dynamic conditions to suppress motion artifacts.
优选的，所述导电海绵由高分子复合材料发泡技术生产，发泡孔径均匀，主要成分为聚酯海绵和金属镍，无毒无味，导电海绵柔软，富有弹性。导电海绵直接与皮肤接触，其柔软特性可以保证穿戴的舒适性，也能在皮肤与电极相互作用时起到缓冲作用，自适应人体胸部外轮廓，很好地贴合与皮肤表面，以减少噪声和抑制运动伪迹。Preferably, the conductive sponge is produced by polymer composite material foaming technology, the foaming pore size is uniform, the main components are polyester sponge and metal nickel, non-toxic and tasteless, the conductive sponge is soft and elastic. The conductive sponge is in direct contact with the skin, its softness can ensure the comfort of wearing, and it can also play a buffer role when the skin interacts with the electrodes. It adapts to the outer contour of the human chest and fits well with the skin surface to reduce noise. and suppress motion artifacts.
优选的，所述第一缓冲层导电海绵厚度为1mm，整体宽度为20-40mm，长度为50-80mm，两端为以其宽为直径的半圆。其作用为抵消或缓冲皮肤-基底之间的水平滑动，一定程度抵消和缓冲垂直挤压。Preferably, the conductive sponge of the first buffer layer has a thickness of 1 mm, an overall width of 20-40 mm, a length of 50-80 mm, and two ends of which are semicircles whose width is the diameter. It acts to counteract or cushion horizontal skin-substrate sliding and to some extent counteract and cushion vertical compression.
优选的，所述第二缓冲层导电海绵厚度小于等于0.5mm，整体宽度为20-40mm，长度为50-80mm，两端为以其宽为直径的半圆。其作用为抵消或缓冲皮肤-电极的局部滑动和垂直挤压。Preferably, the thickness of the conductive sponge of the second buffer layer is less than or equal to 0.5mm, the overall width is 20-40mm, the length is 50-80mm, and the two ends are semicircles whose width is the diameter. It acts to counteract or cushion skin-electrode localized sliding and vertical extrusion.
优选的，所述抑制运动伪迹层由第一缓冲层，加强层和第二缓冲层共同作用来抵消或缓冲由人在运动中产生的基底震动，滑动或挤压，带来的电极和皮肤之间的相对滑动，挤压，扭曲形变，导致皮肤-电极的双电层发生电荷重新分配而引起的运动伪迹。Preferably, the anti-motion artifact layer is composed of the first buffer layer, the reinforcement layer and the second buffer layer to counteract or buffer the base vibration, sliding or extrusion caused by the human movement, and the electrodes and the skin The relative sliding, extrusion, twisting and deformation between the skin and the electric double layer of the electrode lead to motion artifacts caused by charge redistribution.
优选的，所述电极整体厚度小于等于3mm，在佩戴时以免产生异物感，影响穿戴舒适性。整体宽度为20-40mm，长度为50-80mm，两端为以其宽为直径的半圆。心电电极需贴合胸部特征，太大的尺寸会影响其穿戴舒适性，使得心电R波易发生畸变；太小的尺寸会削弱心电的有效信号。Preferably, the overall thickness of the electrodes is less than or equal to 3 mm, so as to avoid foreign body sensation when worn and affect wearing comfort. The overall width is 20-40mm, the length is 50-80mm, and the two ends are semicircles whose width is the diameter. The ECG electrode needs to fit the chest features. Too large a size will affect its wearing comfort and make the ECG R wave prone to distortion; too small a size will weaken the effective signal of the ECG.
优选的，所述石墨烯是电极核心材料，其纯度大于95％，导电率为105S/m，氧和硫的含量均为0.5％，金属杂质含量为100ppm，比表面积为100-300m2/g，涂层厚度为0.005mm。石墨烯优良的导电性和极高的灵敏度能够感应皮肤表面微弱生物电势信号,提高了微弱电信号数据采集的精准度。Preferably, the graphene is the electrode core material with a purity greater than 95%, a conductivity of 105 S/m, an oxygen and sulfur content of 0.5%, a metal impurity content of 100 ppm, and a specific surface area of 100-300 m2 /g, the coating thickness is 0.005mm. Graphene's excellent conductivity and high sensitivity can sense weak biopotential signals on the skin surface, improving the accuracy of weak electrical signal data collection.
优选的，所述绝缘织物，厚度为0.5-0.8mm，整体宽度为50-70mm，长度为80-110mm的矩形，中心镂空图形为电极触面层形状。绝缘织物封装电极，隔离导电层与皮肤接触，避免产生干扰信号。Preferably, the insulating fabric is a rectangle with a thickness of 0.5-0.8mm, an overall width of 50-70mm, and a length of 80-110mm, and the central hollow pattern is in the shape of an electrode contact layer. The insulating fabric encapsulates the electrodes, isolates the conductive layer from contact with the skin, and avoids interfering signals.
优选的，所述绝缘织物与织物基底用缝纫机缝纫连接、固定。Preferably, the insulating fabric is connected and fixed to the fabric base by sewing with a sewing machine.
附图说明Description of drawings
图1为抑制运动伪迹石墨烯柔性心电干电极的结构示意图；Fig. 1 is the schematic diagram of the structure of graphene flexible ECG dry electrode for suppressing motion artifacts;
图2为抑制运动伪迹石墨烯柔性心电干电极覆盖绝缘遮挡层的结构示意图。Fig. 2 is a schematic diagram of the structure of the graphene flexible ECG dry electrode covered with an insulating shielding layer for suppressing motion artifacts.
其中，1为柔性织物；2为导电布；3为导电海绵；4为导电布；5为导电海绵；6为石墨烯涂层；7为绝缘织物。Among them, 1 is flexible fabric; 2 is conductive fabric; 3 is conductive sponge; 4 is conductive fabric; 5 is conductive sponge; 6 is graphene coating; 7 is insulating fabric.
具体实施方式Detailed ways
为使本发明要解决的技术问题、技术方案和优点更加清楚，下面将结合附图及具体实施例进行详细描述。本领域技术人员应当知晓，下述具体实施例或具体实施方式，是本发明为进一步解释具体的发明内容而列举的一系列优化的设置方式，而该些设置方式之间均是可以相互结合或者相互关联使用的，除非在本发明明确提出了其中某些或某一具体实施例或实施方式无法与其他的实施例或实施方式进行关联设置或共同使用。同时，下述的具体实施例或实施方式仅作为最优化的设置方式，而不作为限定本发明的保护范围的理解。In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments. Those skilled in the art should know that the following specific embodiments or specific implementation methods are a series of optimized configurations listed by the present invention to further explain the specific content of the invention, and these configurations can be combined with each other or used in association with each other, unless it is clearly stated in the present invention that some or a specific embodiment or implementation cannot be associated with or used in conjunction with other embodiments or implementations. At the same time, the following specific examples or implementation methods are only used as optimized configurations, and are not understood as limiting the protection scope of the present invention.
实施例Example
如图1所示，为抑制运动伪迹石墨烯柔性心电干电极结构图，左边为俯视图，右边为侧视图；图2为抑制运动伪迹石墨烯柔性心电干电极覆盖绝缘遮挡层的结构示意图，左边为绝缘遮挡层俯视图，右边为覆盖绝缘遮挡层心电电极的侧视图。As shown in Figure 1, it is a structural diagram of graphene flexible ECG dry electrodes for suppressing motion artifacts, the left is a top view, and the right is a side view; Figure 2 is a structure of graphene flexible ECG dry electrodes for suppressing motion artifacts covered with an insulating shielding layer Schematic diagram, the top view of the insulating barrier layer on the left, and the side view of the ECG electrodes covered with the insulating barrier layer on the right.
参见图1和2，本发明公开了一种优选的实施方案，具体如下：所述电极由基底层、织物导电层、抑制运动伪迹层、触面层和绝缘遮挡层组成。其特征在于：柔性织物1构成所述基底层；导电布2构成所述织物导电层；第一缓冲层、加强层和第二缓冲层构成所述抑制运动伪迹层，导电海绵3构成所述第一缓冲层，导电海绵5构成所述第二缓冲层，导电布4构成所述加强层；石墨烯涂层6构成所述触面层；绝缘织物7构成所述绝缘遮挡层。其中：所述织物导电层设置在所述基底层上，放置中心位置且通过医用粘胶与其粘合；所述抑制运动伪迹层设置在所述织物导电层上，放置中心位置且通过导电银胶与其粘合；所述抑制运动伪迹层内部各层均由导电银胶粘合；所述触面层设置在所述抑制运动伪迹层上，放置中心位置且通过导电银胶与其粘合；所述绝缘织物遮挡层中心镂空，设置在织物导电层上，完全覆盖且通过缝纫连接、固定。Referring to Figures 1 and 2, the present invention discloses a preferred embodiment, specifically as follows: the electrode is composed of a base layer, a fabric conductive layer, a motion artifact suppression layer, a contact layer and an insulating shielding layer. It is characterized in that: the flexible fabric 1 constitutes the base layer; the conductive cloth 2 constitutes the fabric conductive layer; the first buffer layer, the reinforcing layer and the second buffer layer constitute the motion artifact suppression layer, and the conductive sponge 3 constitutes the For the first buffer layer, the conductive sponge 5 constitutes the second buffer layer, the conductive cloth 4 constitutes the reinforcement layer; the graphene coating 6 constitutes the contact layer; and the insulating fabric 7 constitutes the insulating shielding layer. Wherein: the fabric conductive layer is arranged on the base layer, placed in the center position and bonded to it by medical adhesive; Adhesive glue; each layer inside the anti-motion artifact layer is bonded by conductive silver glue; the contact layer is arranged on the anti-motion artifact layer, placed in the center and bonded to it by conductive silver glue ; The center of the insulating fabric shielding layer is hollowed out, set on the fabric conductive layer, completely covered and connected and fixed by sewing.
所述柔性织物1是具有一定柔韧性和弹性的莱卡布块，作为基底主要用来支撑电极。织物基底合适的压力既保证心电电极与人体紧密贴合，又保障穿戴的舒适性。The flexible fabric 1 is a Lycra cloth block with certain flexibility and elasticity, which is mainly used as a base to support electrodes. The appropriate pressure of the fabric base not only ensures the close fit of the ECG electrodes and the human body, but also ensures the comfort of wearing.
所述导电布2和4的基材为聚酯纤维，表面的导电阻抗值小于等于0.5Ω/m2，具有良好的导电能。The base materials of the conductive cloths 2 and 4 are polyester fibers, and the conductive resistance value of the surface is less than or equal to 0.5Ω/m2 , which has good electrical conductivity.
所述织物导电层的导电布2厚度为0.05mm，整体宽度为50mm，长度为80mm，两端为以50mm为直径的半圆，具有导电和电磁屏蔽的作用。The conductive cloth 2 of the fabric conductive layer has a thickness of 0.05mm, an overall width of 50mm, and a length of 80mm. Both ends are semicircular with a diameter of 50mm, which has the functions of conduction and electromagnetic shielding.
所述加强层导电布4厚度为0.05mm，整体宽度为30mm，长度为60mm，两端为以30mm为直径的半圆。其作用是增加导电性和加强电极，使其不易发生永久形变，在一定程度上，使电极触面层紧贴皮肤表面，在动态情况下使电极与皮肤表面保持相对平行，抑制运动伪迹。The thickness of the reinforcing layer conductive cloth 4 is 0.05mm, the overall width is 30mm, the length is 60mm, and the two ends are semicircles with a diameter of 30mm. Its function is to increase the conductivity and strengthen the electrode, so that it is not easy to undergo permanent deformation. To a certain extent, the electrode contact layer is close to the skin surface, and the electrode is kept relatively parallel to the skin surface under dynamic conditions to suppress motion artifacts.
所述导电海绵3和5由高分子复合材料发泡技术生产，发泡孔径均匀，主要成分为聚酯海绵和金属镍，无毒无味，导电海绵柔软，富有弹性。导电海绵直接与皮肤接触，其柔软特性可以保证穿戴的舒适性，也能在皮肤与电极相互作用时起到缓冲作用，自适应人体胸部外轮廓，很好地贴合与皮肤表面，以减少噪声和抑制运动伪迹。The conductive sponges 3 and 5 are produced by polymer composite material foaming technology, and the foaming pore size is uniform. The main components are polyester sponge and metal nickel, non-toxic and tasteless, and the conductive sponges are soft and elastic. The conductive sponge is in direct contact with the skin, its softness can ensure the comfort of wearing, and it can also play a buffer role when the skin interacts with the electrodes. It adapts to the outer contour of the human chest and fits well with the skin surface to reduce noise. and suppress motion artifacts.
所述第一缓冲层导电海绵3厚度为1mm，整体宽度为30mm，长度为60mm，两端为以30mm为直径的半圆。其作用为抵消或缓冲皮肤-基底之间的水平滑动，一定程度抵消和缓冲垂直挤压。The first buffer layer conductive sponge 3 has a thickness of 1 mm, an overall width of 30 mm, a length of 60 mm, and two ends of a semicircle with a diameter of 30 mm. It acts to counteract or cushion horizontal skin-substrate sliding and to some extent counteract and cushion vertical compression.
所述第二缓冲层导电海绵5厚度为0.5mm，整体宽度为30mm，长度为60mm，两端为以30mm为直径的半圆。其作用为抵消或缓冲皮肤-电极的局部滑动和垂直挤压。The second buffer layer conductive sponge 5 has a thickness of 0.5 mm, an overall width of 30 mm, a length of 60 mm, and two ends of a semicircle with a diameter of 30 mm. It acts to counteract or cushion skin-electrode localized sliding and vertical extrusion.
所述抑制运动伪迹层由第一缓冲层，加强层和第二缓冲层共同作用来抵消或缓冲由人在运动中产生的基底震动，滑动或挤压，带来的电极和皮肤之间的相对滑动，挤压，扭曲形变，导致皮肤-电极的双电层发生电荷重新分配而引起的运动伪迹。The anti-motion artifact layer is composed of the first buffer layer, the reinforcing layer and the second buffer layer to counteract or buffer the vibration between the electrode and the skin caused by the vibration, sliding or extrusion of the base during the movement of the person. Motion artifacts caused by relative sliding, extrusion, twisting and deformation, resulting in charge redistribution of the skin-electrode double layer.
所述电极整体厚度为2mm，在佩戴时以免产生异物感，影响穿戴舒适性。整体宽度为30mm，长度为60mm，两端为以30mm为直径的半圆。心电电极需贴合胸部特征，太大的尺寸会影响其穿戴舒适性，使得心电R波易发生畸变；太小的尺寸会削弱心电的有效信号。The overall thickness of the electrodes is 2 mm, so as to avoid foreign body sensation when worn and affect the wearing comfort. The overall width is 30mm, the length is 60mm, and the two ends are semicircles with a diameter of 30mm. The ECG electrode needs to fit the chest features. Too large a size will affect its wearing comfort and make the ECG R wave prone to distortion; too small a size will weaken the effective signal of the ECG.
所述石墨烯涂层6是电极核心材料，其纯度大于95％，导电率为105S/m，氧和硫的含量均为0.5％，金属杂质含量为100ppm，比表面积为100-300m2/g，涂层厚度为0.005mm。石墨烯优良的导电性和极高的灵敏度能够感应皮肤表面微弱生物电势信号,提高了微弱电信号数据采集的精准度。The graphene coating 6 is an electrode core material with a purity greater than 95%, a conductivity of 105 S/m, an oxygen and sulfur content of 0.5%, a metal impurity content of 100 ppm, and a specific surface area of 100-300 m2 /g, the coating thickness is 0.005mm. Graphene's excellent conductivity and high sensitivity can sense weak biopotential signals on the skin surface, improving the accuracy of weak electrical signal data collection.
所述绝缘织物7厚度为0.5mm，整体宽度为50mm，长度为80mm的矩形，中心镂空图形为电极触面层形状。绝缘织物封装电极，隔离导电层与皮肤接触，避免产生干扰信号。The insulating fabric 7 is a rectangle with a thickness of 0.5 mm, an overall width of 50 mm, and a length of 80 mm, and the hollow figure in the center is the shape of the electrode contact layer. The insulating fabric encapsulates the electrodes, isolates the conductive layer from contact with the skin, and avoids interfering signals.
所述绝缘织物7与织物基底用缝纫机缝纫连接、固定。The insulating fabric 7 is connected and fixed to the fabric base by sewing with a sewing machine.
| Application Number | Priority Date | Filing Date | Title |
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| CN201510844138.4ACN105286856B (en) | 2015-11-27 | 2015-11-27 | Inhibit motion artifacts graphene flexibility electrocardiograph dry electrode |
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| CN201510844138.4ACN105286856B (en) | 2015-11-27 | 2015-11-27 | Inhibit motion artifacts graphene flexibility electrocardiograph dry electrode |
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| CN201510844138.4AActiveCN105286856B (en) | 2015-11-27 | 2015-11-27 | Inhibit motion artifacts graphene flexibility electrocardiograph dry electrode |
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