TWI881898B - Method for manufacturing wet electrodes for eeg based on floral foam - Google Patents

Abstract

The present invention provides a method for manufacturing wet electrodes for EEG based on floral foam. The steps include: preparing a substrate made of floral foam; applying a conductive resin to one end of the substrate; coupling at least one wire to the end of the substrate coated with resin; immersing the untreated end of the substrate in a viscous aqueous solution to form the electrode. Therefore, this invention leverages the excellent water absorption, superior moisturizing capability, and low-cost advantages of flower bricks. The invention achieves higher flexibility and water absorption, with minimal water loss, facilitating effective transmission of EEG signals and preventing noise interference. This results in high precision measurements and significantly extends EEG measurement times due to its water retention properties, enhancing measurement accuracy and efficiency.

Description

Translated fromChinese

基於花磚之腦波帽濕式電極之製造方法Manufacturing method of brain wave cap wet electrode based on flower brick

本發明係提供一種基於花磚之腦波帽濕式電極之製造方法，尤指一種應用花磚為基材以製成濕式電極，透過花磚之多孔特徵強化電極之保濕特性、以減少水分散失，避免雜訊的產生，並具有極低成本之優勢者。The present invention provides a method for manufacturing a wet electrode for an EEG cap based on flower tiles, in particular, a method for manufacturing a wet electrode using flower tiles as a substrate, which enhances the electrode's moisture retention properties through the porous characteristics of the flower tiles, reduces water loss, avoids the generation of noise, and has the advantage of extremely low cost.

按，腦波電極是用於檢測和記錄腦部電活動的部件，並將腦波訊號轉換成數據或其他設備能夠理解的形式；設計方式可以分為侵入以及非侵入式電極，由於侵入式電極對於實驗而言有許多窒礙難行的因素，故在臨床測試之選擇上多以非侵入式電極為主；腦波帽之分類原理是遵照1958年國際腦波推薦標準法10-20(Ten-Twee electrode method)完成；腦波帽係將頭部以10-20-20-20-20-10%的比例劃分成網格結構，以鼻樑為起點，頭後枕骨為終點；在此網格結構中，以頭部中間為分界線，將頭部分成左右兩半以進行訊號量測；由腦波帽量測獲得之數據稱為腦電圖(EEG)，其檢測原理是透過電極量測大腦活動產生之電訊號，在進行EEG檢測時，電極附著於頭皮上各個特定位置形成一個電極陣列，電極陣列之通道數多寡可依使用者需求而定。According to the press release, EEG electrodes are components used to detect and record electrical activity in the brain, and convert EEG signals into data or forms that other devices can understand. The design methods can be divided into invasive and non-invasive electrodes. Since invasive electrodes have many obstacles to experiments, non-invasive electrodes are mostly used in clinical tests. The classification principle of EEG caps is based on the 1958 International EEG Recommended Standard Method 10-20 (Ten-Twee electrode method); the EEG cap divides the head into a grid structure at a ratio of 10-20-20-20-20-10%, starting at the bridge of the nose and ending at the occipital bone; in this grid structure, the middle of the head is used as the dividing line to divide the head into left and right halves for signal measurement; the data obtained by the EEG cap is called electroencephalogram (EEG), and its detection principle is to measure the electrical signals generated by brain activity through electrodes. When performing EEG detection, electrodes are attached to specific locations on the scalp to form an electrode array. The number of channels in the electrode array can be determined according to user needs.

電極記錄由大腦神經元發出的微弱電信號，而此類信號反映大腦在不同狀態和活動(包括清醒、睡眠、專注和放鬆等)中的變化；檢測會利用時域或頻域數據分析腦中電活動，時域響應是觀測腦部訊號隨時間增長是否有衰減，抑或特定振幅出現，頻域訊號則針對橫軸頻率重點探討，可在特定事件相關電位(ERP)觀測不同受測者響應訊號，而這種電訊號量測已被廣泛應用於臨床神經科學、神經生理學、和睡眠研究等領域。Electrodes record weak electrical signals emitted by brain neurons, and such signals reflect changes in the brain in different states and activities (including wakefulness, sleep, concentration, and relaxation, etc.); the test uses time domain or frequency domain data to analyze electrical activity in the brain. Time domain response is to observe whether brain signals decay over time or whether a specific amplitude appears. Frequency domain signals focus on the horizontal frequency. The response signals of different subjects can be observed in specific event-related potentials (ERPs). This type of electrical signal measurement has been widely used in clinical neuroscience, neurophysiology, and sleep research.

然而量測過程常包含許多問題存在，例如：電極、材料類型、水溶液使用等，都是訊號是否產生雜訊的關鍵，以腦波量測電極而言，可以大致劃分為乾式、濕式電極，乾式電極(Dry Electrode)是一種不需透過導電膏或膠體為介質的電極，設計上通常直接接觸於頭皮，由於缺少液體介質當作媒介，在預處理時無須額外花時間清潔以及維護，但也產生一定程度的接觸阻抗，除了會導致信號雜訊增加、弱化，更讓受測者於量測時產生不舒服的感覺，信號品質往往不如濕式電極在長時間使用中穩定；此外，導電膏的加入增加事前預處理的時間，並且隨著時間流逝導電膏中的水分也隨之消逝，導致濃度提升、量測數據誤差產生。However, the measurement process often involves many problems, such as: electrodes, material type, and the use of aqueous solutions, which are the key to whether the signal generates noise. For EEG measurement electrodes, they can be roughly divided into dry and wet electrodes. Electrode) is an electrode that does not require conductive paste or gel as a medium. It is usually designed to directly contact the scalp. Due to the lack of liquid medium as a medium, there is no need to spend extra time cleaning and maintenance during pre-treatment, but it also produces a certain degree of contact impedance, which will not only increase and weaken the signal noise, but also make the subject feel uncomfortable during measurement. The signal quality is often not as stable as wet electrodes in long-term use. In addition, the addition of conductive paste increases the pre-treatment time, and as time goes by, the water in the conductive paste disappears, resulting in increased concentration and measurement data errors.

綜上所述，乾式電極和濕式電極各有優勢和限制，乾式電極適用於短期和即時的應用，而濕式電極適用於長期和穩定的應用；在腦波帽的設計中，可能會根據具體用途將兩種電極結合使用，以平衡各自的優勢，提供更好的性能和使用體驗，而本研究偏向以濕式電極為主，目標為改善其無法長時間量測的缺點。In summary, dry electrodes and wet electrodes each have their own advantages and limitations. Dry electrodes are suitable for short-term and immediate applications, while wet electrodes are suitable for long-term and stable applications. In the design of an EEG cap, the two types of electrodes may be used in combination according to specific uses to balance their respective advantages and provide better performance and user experience. This study tends to focus on wet electrodes, with the goal of improving their disadvantage of being unable to measure for a long time.

腦波帽電極常見的材料包括金屬(如銀、金、鉑)、碳纖維和導電塑料，雖然金屬電極通常具有較高的導電性，但對頭部的壓迫較大，容易引起不適；碳纖維電極較為柔軟，舒適性較高，但導電性稍差。Common materials for EEG cap electrodes include metals (such as silver, gold, platinum), carbon fibers, and conductive plastics. Although metal electrodes usually have higher conductivity, they exert greater pressure on the head and can easily cause discomfort; carbon fiber electrodes are softer and more comfortable, but their conductivity is slightly worse.

有鑑於此，吾等發明人乃潛心進一步研究濕式電極，並著手進行研發及改良，期以一較佳發明以解決上述問題，且在經過不斷試驗及修改後而有本發明之問世。In view of this, we inventors have devoted ourselves to further research on wet electrodes and have started to conduct research and development and improvement in order to come up with a better invention to solve the above problems. After continuous testing and modification, the present invention was finally born.

爰是，本發明之目的係為解決前述問題，為達致以上目的，吾等發明人提供一種基於花磚之腦波帽濕式電極之製造方法，其步驟包含：配置一基材，該基材為花磚；於該基材之一端塗佈具導電性之樹脂；於該基材塗佈樹脂之一端耦接至少一導線；以及將該基材未塗佈樹脂之一端浸泡於具黏度之水溶液以形成該電極。Therefore, the purpose of the present invention is to solve the above problems. To achieve the above purpose, we, the inventors, provide a method for manufacturing a brain wave cap wet electrode based on a tile, the steps of which include: configuring a substrate, the substrate is a tile; coating one end of the substrate with a conductive resin; coupling at least one wire to one end of the substrate coated with the resin; and immersing the end of the substrate not coated with the resin in a viscous aqueous solution to form the electrode.

據上所述之基於花磚之腦波帽濕式電極之製造方法，其步驟更包含：於該基材塗佈樹脂之一端配置一導體層；以及將所述導線對應導接於該導體層。According to the above-mentioned method for manufacturing the brain wave cap wet electrode based on flower bricks, the steps further include: configuring a conductive layer at one end of the substrate coated with resin; and connecting the conductive wires to the conductive layer accordingly.

據上所述之基於花磚之腦波帽濕式電極之製造方法，其中，所述導線係透過一導電膠體以對應導接於該導體層者。According to the manufacturing method of the brain wave cap wet electrode based on the flower brick described above, the wire is connected to the conductive layer through a conductive gel.

據上所述之基於花磚之腦波帽濕式電極之製造方法，其中，該導電膠體為銀膠。According to the manufacturing method of the brain wave cap wet electrode based on flower bricks described above, the conductive gel is silver gel.

據上所述之基於花磚之腦波帽濕式電極之製造方法，其中，該導體層為金製成者。According to the above-mentioned method for manufacturing the brain wave cap wet electrode based on flower bricks, the conductive layer is made of gold.

據上所述之基於花磚之腦波帽濕式電極之製造方法，其中，該樹脂為環氧樹脂(Epoxy)。According to the manufacturing method of the brain wave cap wet electrode based on flower bricks described above, the resin is epoxy resin.

據上所述之基於花磚之腦波帽濕式電極之製造方法，其中，該水溶液為聚乙二醇(PEG)及氯化鈉溶液之混合液。According to the above-mentioned method for manufacturing the EEG wet electrode based on flower bricks, the aqueous solution is a mixture of polyethylene glycol (PEG) and sodium chloride solution.

據上所述之基於花磚之腦波帽濕式電極之製造方法，其中，該氯化鈉溶液之重量百分濃度為0.9%。According to the above-mentioned method for manufacturing the brain wave cap wet electrode based on flower bricks, the weight percentage concentration of the sodium chloride solution is 0.9%.

據上所述之基於花磚之腦波帽濕式電極之製造方法，其中，該聚乙二醇之重量百分比為40%以下者。According to the above-mentioned method for manufacturing the brain wave cap wet electrode based on flower bricks, the weight percentage of the polyethylene glycol is less than 40%.

據上所述之基於花磚之腦波帽濕式電極之製造方法，其中，所述導線為銅線。According to the above-mentioned method for manufacturing the wet electrode of the brain wave cap based on flower bricks, the conductive wire is a copper wire.

是由上述說明及設置，顯見本發明主要具有下列數項優點及功效，茲逐一詳述如下：From the above description and configuration, it is apparent that the present invention mainly has the following advantages and effects, which are described in detail as follows:

1.本發明透過將基材配置為花磚，藉以經製成電極後，可有效減少電極接觸阻抗、並改善訊號品質，同時透過花磚之多孔特徵強化電極之保濕特性、以減少水分散失，避免雜訊的產生，使於進行量測時具有高度之精確性，並且因應其保水之特性，使可大幅提升腦波之量測時間，進可提升腦波量測之準確度及效率；同時本發明整體之成本遠低於習知之濕式電極，故可利於量化製造，並可有助於提升腦波研究技術之發展者。1. The present invention configures the substrate as a tile, so that after the electrode is made, the electrode contact impedance can be effectively reduced and the signal quality can be improved. At the same time, the porous characteristics of the tile can enhance the moisture retention of the electrode to reduce water loss and avoid the generation of noise, so that the measurement has a high degree of accuracy. In addition, due to its moisture retention characteristics, the measurement time of brain waves can be greatly improved, and the accuracy and efficiency of brain wave measurement can be improved. At the same time, the overall cost of the present invention is much lower than that of the conventional wet electrode, so it can be conducive to mass production and can help improve the development of brain wave research technology.

1:基材1: Base material

11:樹脂層11: Resin layer

2:導體層2: Conductor layer

3:導線3: Conductor wire

4:導電膠體4: Conductive colloid

S001~S006:步驟S001~S006: Steps

第1圖係本發明之流程圖。Figure 1 is a flow chart of the present invention.

第2圖係本發明電極之立體示意圖。Figure 2 is a three-dimensional schematic diagram of the electrode of the present invention.

第3圖係本發明電極之立體分解示意圖。Figure 3 is a three-dimensional exploded schematic diagram of the electrode of the present invention.

第4圖(A)係本發明基材透過掃描式電子顯微鏡於倍率1.00mm之分析結果圖。Figure 4 (A) is the analysis result of the substrate of the present invention through a scanning electron microscope at a magnification of 1.00mm.

第4圖(B)係本發明基材透過掃描式電子顯微鏡於倍率500μm之分析結果圖。Figure 4 (B) is the analysis result of the substrate of the present invention through a scanning electron microscope at a magnification of 500μm.

第4圖(C)係本發明基材透過掃描式電子顯微鏡於倍率200μm之分析結果圖。Figure 4 (C) is the analysis result of the substrate of the present invention through a scanning electron microscope at a magnification of 200μm.

第4圖(D)係本發明基材透過掃描式電子顯微鏡於倍率100μm之分析結果圖。Figure 4 (D) is the analysis result of the substrate of the present invention through a scanning electron microscope at a magnification of 100μm.

第5圖係本發明經傅立葉轉換紅外線光譜之波數(Wavenumber)對吸光度(Absorbance)之分析結果圖。Figure 5 is the analysis result of the wave number (Wavenumber) versus absorbance (Absorbance) of the Fourier transformed infrared spectrum of the present invention.

第6圖係本發明中，花磚及棉花經吸附實驗，時間(Time)對吸收率(Absorption Rate)之分析結果圖。Figure 6 is an analysis result of the time (Time) versus absorption rate (Absorption Rate) in the adsorption experiment of flower bricks and cotton in the present invention.

第7圖係本發明於花磚及棉花進行接觸阻抗實驗，時間(Time)對接觸阻抗(Contact Impedance)之分析結果圖。Figure 7 is a graph showing the analysis results of the contact impedance experiment conducted on tiles and cotton by the present invention, showing the relationship between time and contact impedance.

第8圖係本發明於花磚及棉花進行脫附實驗，時間(Time)對去吸附率(Desorption Rate)之分析結果圖。Figure 8 is a graph showing the analysis of the time (Time) versus the desorption rate (Desorption Rate) in the desorption experiment conducted on bricks and cotton by the present invention.

第9A圖係本發明實驗例中，使用棉花進行穩態視覺刺激實驗，於頻率(Frequency)為10Hz時產生之振幅(Amplitude)之實驗結果圖。Figure 9A is a graph showing the experimental results of the amplitude (Amplitude) generated when the frequency (Frequency) is 10Hz in a steady visual stimulation experiment using cotton in the experimental example of the present invention.

第9B圖係本發明實驗例中，使用棉花進行穩態視覺刺激實驗，於頻率(Frequency)為12Hz時產生之振幅(Amplitude)之實驗結果圖。Figure 9B is a graph showing the experimental results of the amplitude (Amplitude) generated when the frequency (Frequency) is 12Hz in a steady visual stimulation experiment using cotton in the experimental example of the present invention.

第9C圖係本發明實驗例中，使用棉花進行穩態視覺刺激實驗，於頻率(Frequency)為15Hz時產生之振幅(Amplitude)之實驗結果圖。Figure 9C is a graph showing the experimental results of the amplitude (Amplitude) generated when the frequency (Frequency) is 15Hz in a steady visual stimulation experiment using cotton in the experimental example of the present invention.

第10A圖係本發明實驗例中，使用材質為部分之花磚進行穩態視覺刺激實驗，於頻率(Frequency)為10Hz時產生之振幅(Amplitude)之實驗結果圖。Figure 10A is a graph showing the experimental results of the amplitude (Amplitude) generated at a frequency (Frequency) of 10Hz in a steady visual stimulation experiment using a material as part of the flower brick in the experimental example of the present invention.

第10B圖係本發明實驗例中，使用材質為部分之花磚進行穩態視覺刺激實驗，於頻率(Frequency)為12Hz時產生之振幅(Amplitude)之實驗結果圖。Figure 10B is a graph showing the experimental results of the amplitude (Amplitude) generated at a frequency (Frequency) of 12Hz in a steady visual stimulation experiment using a material as part of the flower brick in the experimental example of the present invention.

第10C圖係本發明實驗例中，使用材質為部分之花磚進行穩態視覺刺激實驗，於頻率(Frequency)為15Hz時產生之振幅(Amplitude)之實驗結果圖。Figure 10C is a graph showing the experimental results of the amplitude (Amplitude) generated at a frequency (Frequency) of 15Hz in a steady visual stimulation experiment using a tile as part of the material in the experimental example of the present invention.

第11A圖係本發明實驗例中，使用材質為全花磚進行穩態視覺刺激實驗，於頻率(Frequency)為10Hz時產生之振幅(Amplitude)之實驗結果圖。Figure 11A is a graph showing the experimental results of the amplitude (Amplitude) generated at a frequency (Frequency) of 10Hz in a steady visual stimulation experiment using a material of full flower tiles in the experimental example of the present invention.

第11B圖係本發明實驗例中，使用材質為全花磚進行穩態視覺刺激實驗，於頻率(Frequency)為12Hz時產生之振幅(Amplitude)之實驗結果圖。Figure 11B is a graph showing the experimental results of the amplitude (Amplitude) generated at a frequency (Frequency) of 12Hz in a steady visual stimulation experiment using a material of full flower tiles in the experimental example of the present invention.

第11C圖係本發明實驗例中，使用材質為全花磚進行穩態視覺刺激實驗，於頻率(Frequency)為15Hz時產生之振幅(Amplitude)之實驗結果圖。Figure 11C is a graph showing the experimental results of the amplitude (Amplitude) generated at a frequency (Frequency) of 15Hz in a steady visual stimulation experiment using a material of full flower tiles in the experimental example of the present invention.

關於吾等發明人之技術手段，茲舉數種較佳實施例配合圖式於下文進行詳細說明，俾供 鈞上深入了解並認同本發明。Regarding the technical means of our inventors, several preferred embodiments are described in detail below with accompanying drawings, so that you can have a deeper understanding and recognize the present invention.

請先參閱第1圖至第3圖所示，本發明係一種基於花磚之腦波帽濕式電極之製造方法，其步驟包含：Please refer to Figures 1 to 3. The present invention is a method for manufacturing a brain wave cap wet electrode based on flower bricks, and the steps include:

S001：配置一基材1，該基材1為花磚(Floral Foam)，於本實施例中係將花磚配置為圓柱狀，惟其僅係舉例說明，並不以此作為限定；其中，花磚係園藝界被廣為利用的材料，除了容易塑造成任何形狀，更具有水分保持之特性，此外，其材料之價格成本極低，因此本發明主要係透過花磚進行電極之配置；且其特性可如第4圖(A)至(D)所示，其分別係透過掃描式電子顯微鏡(SEM)分析之結果圖，其中，掃描式電子顯微鏡係利用聚焦電子束掃描材料樣本，並蒐集折射之二次電子進行材料分析，可清楚觀察其材料結構特性；而由實驗結果可見，花磚具有多孔性質，故可透過大量細微孔隙來提升水分之吸收。S001: Prepare a substrate 1, which is a floral tile. Foam), in this embodiment, the flower brick is configured in a cylindrical shape, but it is only an example and is not limited to this; among them, flower bricks are widely used materials in the horticultural industry. In addition to being easy to shape into any shape, they also have the property of retaining water. In addition, the price cost of the material is extremely low. Therefore, the present invention mainly uses flower bricks to configure electrodes; and its characteristics can be shown in Figure 4 (A) to (D), which are the results of scanning electron microscope (SEM) analysis. Among them, the scanning electron microscope uses a focused electron beam to scan the material sample and collects the refracted secondary electrons for material analysis, which can clearly observe its material structure characteristics; and from the experimental results, it can be seen that the flower brick has a porous nature, so it can enhance the absorption of water through a large number of fine pores.

再者，於傅立葉轉換紅外線光譜(FTIR)及能量散射X射線譜(EDS)之材料性質分析，請參第5圖及下表1所示：

Furthermore, please refer to Figure 5 and Table 1 below for material property analysis using Fourier Transform Infrared Spectroscopy (FTIR) and Energy Dispersive X-ray Spectroscopy (EDS):

可見，花磚主要由碳、氧、硫三種化學元素組成，其中碳、氧比例約佔99%，更從FTIR之數據分析出，不同峰值都對應到同一材料之吸收峰，此材料為酚醛；酚醛係具有耐熱、耐燃、耐水性及無毒等性質之材料，除了符合本發明所需之吸水特性，更契合以不傷害人體為目標的初衷。It can be seen that the flower bricks are mainly composed of three chemical elements: carbon, oxygen, and sulfur, of which carbon and oxygen account for about 99%. From the analysis of FTIR data, different peaks correspond to the absorption peaks of the same material, which is phenolic. Phenolic is a material with heat resistance, flame resistance, water resistance and non-toxic properties. In addition to meeting the water absorption characteristics required by the present invention, it also fits the original intention of not harming the human body.

此外，本發明針對花磚進行吸附、脫附、接觸阻抗等實驗，並比較花磚與傳統棉花(Cotton)之差異；如第6圖之吸附實驗數據圖可觀測出，花磚在檢測時間30秒左右就已吸附約九成之水量，更在檢測過程中發現花磚重量較棉花輕，但水溶液吸附量則遠多於棉花；且針對接觸阻抗進行實驗比較，如第7圖所示，由其實驗結果可觀測出，於不同水溶液下，花磚之接觸阻抗皆有比棉花更低的趨勢；並且於第8圖及下表2所示，在脫附實驗中測得，花磚經12小時量測後仍有六成左右得水分保濕率，棉花則僅剩四成；經前述實驗比較得出，花磚材質特性比棉花更加優異。In addition, the present invention conducted experiments on adsorption, desorption, and contact impedance on flower tiles, and compared the differences between flower tiles and traditional cotton. As can be seen from the adsorption experimental data in Figure 6, the flower tiles have absorbed about 90% of the water in about 30 seconds of testing. In the testing process, it was found that the weight of flower tiles is lighter than cotton, but the amount of aqueous solution adsorbed is much greater than cotton. In addition, the present invention conducted experiments on contact impedance, and compared the differences between flower tiles and traditional cotton. Experimental comparisons were conducted, as shown in Figure 7. The experimental results show that under different aqueous solutions, the contact impedance of the tiles is lower than that of cotton. As shown in Figure 8 and Table 2 below, in the desorption experiment, the tiles still have a moisture retention rate of about 60% after 12 hours of measurement, while cotton only has 40% left. The above experimental comparisons show that the material properties of tiles are better than those of cotton.

S002：於該基材1之一端塗佈具導電性之樹脂，使其形成一樹脂層11；樹脂在一實施例中係可為環氧樹脂(Epoxy)，並透過熱固化，以令環氧樹脂填閉基材1內部之孔隙；S002: Apply a conductive resin to one end of the substrate 1 to form a resin layer 11; in one embodiment, the resin may be epoxy, and the epoxy is cured by heat to fill the pores inside the substrate 1;

S003：於該基材1塗佈樹脂之樹脂層11一端配置一導體層2，在一實施例中，該導體層2係可為具有高導電性之金元素製成者，惟其僅係舉例說明，並不以此作為限定，在其他實施例中，亦可使用高導電性之材質製成；S003: A conductive layer 2 is disposed at one end of the resin layer 11 coated with resin on the substrate 1. In one embodiment, the conductive layer 2 can be made of a gold element with high conductivity. However, this is only an example and is not intended to be limiting. In other embodiments, it can also be made of a material with high conductivity;

S004：該基材1塗佈樹脂之一端耦接至少一導線3；所述導線3在一實施例中係可配置為銅線，且其係用以對應連接於一腦波帽(圖未繪示)，以進行電極與腦波帽間之訊號傳遞；所述導線3係可直接配置於樹脂層11，而較佳者，所述導線3係對應導接於該導體層2，藉可確保訊號可透過導體層2統一進行傳遞；S004: One end of the substrate 1 coated with resin is coupled to at least one wire 3; in one embodiment, the wire 3 can be configured as a copper wire, and is used to be connected to an electroencephalogram cap (not shown) to transmit signals between the electrode and the electroencephalogram cap; the wire 3 can be directly configured on the resin layer 11, and preferably, the wire 3 is connected to the conductor layer 2 to ensure that the signal can be uniformly transmitted through the conductor layer 2;

S005：將所述導線3係可透過一導電膠體4(如：銀膠)以對應定位並導接於該導體層2；S005: The wire 3 can be positioned and connected to the conductive layer 2 through a conductive gel 4 (such as silver gel);

S006：將該基材1未塗佈樹脂之一端浸泡於具黏度之水溶液以形成該電極；而其中，樹脂層11之配置，係可防止水溶液直接接觸於導線3而影響訊號讀取之穩定性者；並且如前述，透過導體層2進行其隔絕，並藉其統一進行訊號傳輸，可有效提升其訊號傳遞之穩定性。S006: Soak the end of the substrate 1 not coated with resin in a viscous aqueous solution to form the electrode; wherein the configuration of the resin layer 11 can prevent the aqueous solution from directly contacting the wire 3 and affecting the stability of signal reading; and as mentioned above, the conductor layer 2 is used to isolate and uniformly transmit signals, which can effectively improve the stability of signal transmission.

其中，就水溶液之配置而言，該水溶液為聚乙二醇(PEG)及氯化鈉溶液之混合液；其中，聚乙二醇無色且無毒，可於人體皮膚上使用，且其具有一定之黏度，可有助於延長水分之保持時間；此外，聚乙二醇與氯化鈉會產生交鏈作用，除可提升水分保持時間外，更讓活化能有降低之趨勢；是以，本發明在一實施例中，係可透過將該氯化鈉溶液之重量百分濃度為0.9%(可採用生理食鹽水)，並添加高分子聚乙二醇(PEG6000)，且可將該聚乙二醇之重量百分比為40%以下，藉以擴散、離子遷徙及降低活化能。Among them, as for the configuration of the aqueous solution, the aqueous solution is a mixture of polyethylene glycol (PEG) and sodium chloride solution; wherein, polyethylene glycol is colorless and non-toxic, can be used on human skin, and has a certain viscosity, which can help to prolong the moisture retention time; in addition, polyethylene glycol and sodium chloride will produce a cross-linking effect, which can not only increase the moisture retention time, but also reduce the activation energy; therefore, in one embodiment of the present invention, the weight percentage concentration of the sodium chloride solution can be 0.9% (physiological saline can be used), and high molecular polyethylene glycol (PEG6000) is added, and the weight percentage of the polyethylene glycol can be less than 40%, so as to diffuse, migrate ions and reduce the activation energy.

藉此，本發明在一實驗例中，係以棉花、部分花磚及全花磚製成之電極進行實驗及對照，係採用穩態視覺刺激實驗(SSVEP)，透過不同閃爍刺激人體，刺激時間設定300毫秒，組間休息700毫秒，並持續15個循環，最後將每個循環數據進行頻域訊號分析，並分別以頻率為10、12、15赫茲進行。Thus, in an experimental example, the present invention uses electrodes made of cotton, partial tiles and full tiles for experiments and comparisons. The steady-state visual stimulation experiment (SSVEP) is used to stimulate the human body through different flashes. The stimulation time is set to 300 milliseconds, and the rest period between groups is 700 milliseconds. It lasts for 15 cycles. Finally, the frequency domain signal analysis is performed on the data of each cycle, and the frequency is respectively 10, 12, and 15 Hz.

如第9A圖至第9C圖、第10A圖至第10C圖及第11A圖至第11C圖所述，於人體數據檢測可發現，10赫茲頻率不管在棉花、部分花磚及全花磚電極都有十分明顯的響應，且頻率位置都落在10左右，但隨頻率增高會有雙峰值，甚至峰值不明陷現象出現，而單就針對10赫茲下觀測，可見由全花磚配置之電極可以成功量測到數據，且在頻率響應上亦較其他對照組準確(約10.01赫茲)，故可見本發明比對於傳統棉花確實具有高度之準確性，並且具有更加優異之保水性能，可利於進行長時間之準確量測者。As shown in Figures 9A to 9C, 10A to 10C, and 11A to 11C, it can be found in the human body data detection that the 10 Hz frequency has a very obvious response in cotton, partial tile and full tile electrodes, and the frequency position is around 10, but as the frequency increases, there will be double peaks, and even peak unclear sink phenomenon will appear. Just for the observation under 10 Hz, it can be seen that the electrode configured with full tile can successfully measure the data, and the frequency response is also more accurate than other control groups (about 10.01 Hz). Therefore, it can be seen that the present invention is indeed highly accurate compared to traditional cotton, and has a more excellent water retention performance, which is conducive to long-term accurate measurement.

綜上所述，本發明所揭露之技術手段確能有效解決習知等問題，並達致預期之目的與功效，且申請前未見諸於刊物、未曾公開使用且具長遠進步性，誠屬專利法所稱之發明無誤，爰依法提出申請，懇祈 鈞上惠予詳審並賜准發明專利，至感德馨。In summary, the technical means disclosed in this invention can effectively solve the problems of knowledge and achieve the expected purpose and effect. It has not been seen in publications before the application, has not been publicly used, and has long-term progress. It is indeed an invention as defined in the Patent Law. Therefore, I have filed an application in accordance with the law and sincerely pray that the Supreme Court will give a detailed review and grant the invention patent. I will be very grateful.

惟以上所述者，僅為本發明之數種較佳實施例，當不能以此限定本發明實施之範圍，即大凡依本發明申請專利範圍及發明說明書內容所作之等效變化與修飾，皆應仍屬本發明專利涵蓋之範圍內。However, the above are only several preferred embodiments of the present invention, and should not be used to limit the scope of implementation of the present invention. In other words, all equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the invention specification should still fall within the scope of the present invention patent.

S001~S006:步驟S001~S006: Steps

Claims (10)

Translated fromChinese

一種基於花磚之腦波帽濕式電極之製造方法，其步驟包含： 配置一基材，該基材為花磚； 於該基材之一端塗佈具導電性之樹脂； 於該基材塗佈樹脂之一端耦接至少一導線；以及 將該基材未塗佈樹脂之一端浸泡於具黏度之水溶液以形成該電極。A method for manufacturing a brain wave cap wet electrode based on a flower tile, the steps of which include: Providing a substrate, the substrate being a flower tile; Coating a conductive resin on one end of the substrate; Couple at least one wire on one end of the substrate coated with the resin; and Soaking one end of the substrate not coated with the resin in a viscous aqueous solution to form the electrode.如請求項1所述之基於花磚之腦波帽濕式電極之製造方法，其步驟更包含： 於該基材塗佈樹脂之一端配置一導體層；以及 將所述導線對應導接於該導體層。The manufacturing method of the wet electrode of the brain wave cap based on the flower brick as described in claim 1 further includes the following steps: Disposing a conductive layer at one end of the substrate coated with resin; and Connecting the conductive wires to the conductive layer accordingly.如請求項2所述之基於花磚之腦波帽濕式電極之製造方法，其中，所述導線係透過一導電膠體以對應導接於該導體層者。The manufacturing method of the wet electrode of the brain wave cap based on the flower tile as described in claim 2, wherein the conductive wire is connected to the conductive layer through a conductive gel.如請求項3所述之基於花磚之腦波帽濕式電極之製造方法，其中，該導電膠體為銀膠。The manufacturing method of the brain wave cap wet electrode based on flower bricks as described in claim 3, wherein the conductive gel is silver gel.如請求項2所述之基於花磚之腦波帽濕式電極之製造方法，其中，該導體層為金製成者。A method for manufacturing a tile-based EEG cap wet electrode as described in claim 2, wherein the conductive layer is made of gold.如請求項1至請求項5中任一項所述之基於花磚之腦波帽濕式電極之製造方法，其中，該樹脂為環氧樹脂（Epoxy）。A method for manufacturing a wet electrode for a brain wave cap based on a flower tile as described in any one of claim 1 to claim 5, wherein the resin is epoxy resin.如請求項1至請求項5中任一項所述之基於花磚之腦波帽濕式電極之製造方法，其中，該水溶液為聚乙二醇（PEG）及氯化鈉溶液之混合液。A method for manufacturing a flower brick-based EEG cap wet electrode as described in any one of claim 1 to claim 5, wherein the aqueous solution is a mixture of polyethylene glycol (PEG) and sodium chloride solution.如請求項7所述之基於花磚之腦波帽濕式電極之製造方法，其中，該氯化鈉溶液之重量百分濃度為0.9%。The manufacturing method of the EEG wet electrode based on flower bricks as described in claim 7, wherein the weight percentage concentration of the sodium chloride solution is 0.9%.如請求項7所述之基於花磚之腦波帽濕式電極之製造方法，其中，該聚乙二醇之重量百分比為40％以下者。The manufacturing method of the brain wave cap wet electrode based on flower bricks as described in claim 7, wherein the weight percentage of the polyethylene glycol is less than 40%.如請求項1至請求項5中任一項所述之基於花磚之腦波帽濕式電極之製造方法，其中，所述導線為銅線。A method for manufacturing a wet electrode for an EEG cap based on a flower tile as described in any one of claims 1 to 5, wherein the conductive wire is a copper wire.