CN102499674B - An EEG cap with a socket structure and multiple guaranteed contacts in close contact with the scalp - Google Patents

Abstract

Translated fromChinese

本发明涉及一种采用插座结构的多重保障触点紧密接触头皮的脑电帽。脑电帽对脑电信号采集存在一定的随机误差。本发明包括半球状脑电帽主体、按国际10-20系统中F3、F4、C3、C4、P3、P4、O1、O2电极位置固定在主体上的电极座、位于两侧耳下的经线固定锁、连接两侧经线固定锁的下颚固定带以及与电极座配合使用的电极销。主体由弹性面料构成。脑电帽内有经线，该经线的两端固定在脑电帽主体两边的经线固定锁上，且每条经线穿过两个在头部左右对应的电极座。本发明使用时操作简便，克服现有技术中应用导电膏的脑电帽操作繁琐的缺点，能够快速完成对脑电采集的准备工作。

The invention relates to an electroencephalogram cap which adopts a socket structure and has multiple guarantee contacts closely contacting the scalp. There is a certain random error in the collection of EEG signals by the EEG cap. The present invention includes a hemispherical EEG cap main body, electrode holders fixed on the main body according to F3, F4, C3, C4, P3, P4, O1, O2 electrode positions in the international 10-20 system, and warp thread fixing locks located under the ears on both sides. , the mandibular fixing belt connecting the warp fixing locks on both sides and the electrode pin used in conjunction with the electrode holder. The main body is constructed of elastic fabric. There are warps in the EEG cap, the two ends of which are fixed on the warp fixing locks on both sides of the EEG cap main body, and each warp passes through two corresponding electrode seats on the left and right sides of the head. The invention is easy to operate when used, overcomes the disadvantages of cumbersome operation of the electroencephalogram cap using conductive paste in the prior art, and can quickly complete the preparation work for electroencephalogram collection.

Description

Translated fromChinese

一种采用插座结构的多重保障触点紧密接触头皮的脑电帽An EEG cap with a socket structure and multiple guaranteed contacts in close contact with the scalp

技术领域technical field

本发明属于生物医学领域，具体涉及一种采用插座结构的多重保障触点紧密接触头皮的脑电帽。The invention belongs to the field of biomedicine, and in particular relates to an EEG cap which adopts a socket structure and has multiple guarantee contacts in close contact with the scalp.

背景技术Background technique

随着生物电子和计算机技术的发展，基于皮层脑电数据的应用研究取得了一些成果。例如基于脑电图的癫痫诊断，以及基于皮层脑电的想象运动等脑机接口应用。而目前脑电帽仍然是脑电采集装置的重要组成部分，其关系到皮层脑电数据的采集性能，将直接影响到后续的分析处理。With the development of bioelectronics and computer technology, some achievements have been made in the application research based on cortical EEG data. For example, epilepsy diagnosis based on EEG, and brain-computer interface applications such as brain-computer interface based on cortical EEG. At present, the EEG cap is still an important part of the EEG acquisition device, which is related to the acquisition performance of cortical EEG data and will directly affect the subsequent analysis and processing.

目前普遍使用的脑电帽分为两种：一种是弹性胶条网状脑电帽（91229754.9），如图1所示，这种脑电帽由弹性胶条网状结构构成。使用时，人要手动的将电极夹在脑电帽上。这种固定电极的方式使得电极位置偏差很大，很难将电极放置在准确的位置上，从而导致多导脑电采集的不准确。另外，在同一条弹性胶条上固定3个以上电极，或同一区域固定有多个电极时，由于头部的凸凹不平已经电极固定方向的不一致，很容易造成个别电极因周围电极将弹性胶条撑得离头皮过远而接触不到头皮的情况，从而导致采集数据的错误，并而最终导致诊断错误或分析错误。另一种脑电帽是应用导电膏导电的脑电帽，如Neroscan公司出产的脑电帽。这种脑电帽的电极按国际标准位置固定在弹性的帽子上，受试者带上这种帽子时，电极自动的按照国际标准位置分布在头部，但需要在电极处注入适量导电膏，使电极与头皮之间的阻抗达到预定值。因此使用时准备时间较长，并且导电膏的注入量很难控制，注入量过多时，导电膏与头皮接触面积过大，使得采集得到的信号中含有过多其他电极点信号的干扰；而注入量不够时，电极与头皮之间阻抗过高，将无法有效采集脑电信号。因此，设计新型的脑电帽以解决现有技术中的不足显得尤为重要。There are two types of EEG caps commonly used at present: one is the elastic strip mesh EEG cap (91229754.9), as shown in Figure 1, this EEG cap is composed of elastic strip mesh structure. During use, people will manually clamp the electrodes on the EEG cap. This way of fixing the electrodes makes the position of the electrodes deviate greatly, and it is difficult to place the electrodes in an accurate position, resulting in inaccurate acquisition of multi-conductor EEG. In addition, when more than 3 electrodes are fixed on the same elastic strip, or multiple electrodes are fixed in the same area, due to the unevenness of the head and the inconsistency of the electrode fixing direction, it is easy to cause individual electrodes to be deformed by the elastic strip due to the surrounding electrodes. The condition of propping too far away from the scalp to make contact with it, leading to errors in data collection and, ultimately, errors in diagnosis or analysis. Another kind of EEG cap is an EEG cap that uses conductive paste to conduct electricity, such as the EEG cap produced by Neroscan Corporation. The electrodes of this EEG cap are fixed on the elastic cap according to the international standard position. When the subject wears this cap, the electrodes are automatically distributed on the head according to the international standard position, but it is necessary to inject an appropriate amount of conductive paste into the electrode. Make the impedance between the electrode and the scalp reach a predetermined value. Therefore, it takes a long time to prepare for use, and it is difficult to control the injection amount of conductive paste. When the injection amount is too large, the contact area between the conductive paste and the scalp is too large, so that the collected signal contains too much interference from other electrode point signals; When the amount is not enough, the impedance between the electrodes and the scalp is too high, and the EEG signals cannot be collected effectively. Therefore, it is particularly important to design a novel EEG cap to solve the deficiencies in the prior art.

发明内容Contents of the invention

本发明的目的是针对现有技术的不足，提供一种用于脑电采集的脑电帽。The object of the present invention is to provide an EEG cap for EEG collection aiming at the deficiencies in the prior art.

本发明包括半球状脑电帽主体、按国际10-20系统中F3、F4、C3、C4、P3、P4、O1、O2电极位置固定在主体上的电极座、位于两侧耳下的经线固定锁、连接两侧经线固定锁的下颚固定带以及与电极座配合使用的电极销。主体由弹性面料构成。脑电帽内有经线，该经线的两端固定在脑电帽主体两边的经线固定锁上，且每条经线穿过两个在头部左右对应的电极座。其中经线为含涤纶纤维或橡胶的弹性绳。The present invention includes a hemispherical EEG cap main body, electrode holders fixed on the main body according to the F3, F4, C3, C4, P3, P4, O1, O2 electrode positions in the international 10-20 system, and warp thread fixing locks located under the ears on both sides. , the mandibular fixing belt connecting the warp fixing locks on both sides and the electrode pin used in conjunction with the electrode holder. The main body is constructed of stretch fabric. There are warps in the EEG cap, the two ends of which are fixed on the warp fixing locks on both sides of the EEG cap main body, and each warp passes through two corresponding electrode seats on the left and right sides of the head. Wherein the warp is an elastic rope containing polyester fiber or rubber.

电极座为圆柱型，母线长为CL，在轴心处沿轴线方向有一插孔，插孔包括一圆孔和一与圆孔相通的长方型孔，插孔沿轴线方向贯穿电极座。其中，圆孔的轴线与电极座的轴线共线。电极座在脑电帽内侧部分的有一经线孔，该经线孔轴线与电极座上下表面平行，不与插孔交叉且贯穿电极座。The electrode base is cylindrical, the length of the bus bar is CL, and there is a jack at the axis along the axial direction. The jack includes a round hole and a rectangular hole communicating with the round hole. Wherein, the axis of the circular hole is collinear with the axis of the electrode seat. The electrode seat has a meridian hole in the inner part of the EEG cap, the axis of the meridian hole is parallel to the upper and lower surfaces of the electrode seat, does not intersect with the socket and runs through the electrode seat.

电极销包括：竖直的圆柱型销身；固定在销身正上方的长方体销把；固定在销身正下方的电极触点；固定在销身侧面，且底端与销身低端相连的弹片组。其中销身母线长L，L=1.8CL。销把和电极触点的几何中心都在销身的中轴线上。销身和销把在中轴线上有一导线孔，导线孔贯穿销身与销把，导线通过导线孔连接至电极触点。弹片组包括基板、弹片、滚头及连接板。基板为水平的长方形板，其一边通过连接板与销身连接。弹片也是一长方形板，弹片的一边542a与基板中的边541a的临边重合。滚头为一圆柱型结构，固定在弹片边542a的对边，滚头母线与销身母线垂直，滚头的侧面与弹片相切。弹片组整体高度为h，h=CL。弹片组材料为弹性材料，如弹性塑料、薄铜片等。The electrode pin includes: a vertical cylindrical pin body; a rectangular parallelepiped pin handle fixed directly above the pin body; an electrode contact fixed directly below the pin body; shrapnel group. Among them, the length of the bus bar of the pin body is L, and L=1.8CL. The geometric centers of the pin handle and the electrode contacts are all on the central axis of the pin body. The pin body and the pin handle have a wire hole on the central axis, the wire hole runs through the pin body and the pin handle, and the wire is connected to the electrode contact through the wire hole. The shrapnel group includes base plate, shrapnel, roller head and connecting plate. The base plate is a horizontal rectangular plate, one side of which is connected to the pin body through a connecting plate. The elastic piece is also a rectangular plate, and one side 542a of the elastic piece coincides with the adjacent edge of theside 541a in the base plate. The roller head is a cylindrical structure, fixed on the opposite side of the shrapnel side 542a, the busbar of the roller head is perpendicular to the busbar of the pin body, and the side of the roller head is tangent to the shrapnel. The overall height of the shrapnel group is h, h=CL. The shrapnel group material is elastic material, such as elastic plastic, thin copper sheet and so on.

经线固定锁为圆柱型，在经线固定锁的中轴线处有一穿过经线固定锁上下表面的矩形孔。在经线固定锁侧面有一经过其中轴线与矩形孔相交的圆孔。圆孔中轴线与经线固定锁上表面平行，且穿过经线固定锁。经线固定锁还包括一与其矩形孔大小形状均一致的固定锁孔塞。在经线穿过经线固定锁时，即可用固定锁孔塞塞入矩形孔 ，用摩擦力来固定经线。The warp fixed lock is cylindrical, and there is a rectangular hole passing through the upper and lower surfaces of the warp fixed lock at the central axis of the warp fixed lock. On the side of the warp fixed lock, there is a circular hole passing through the central axis and intersecting the rectangular hole. The central axis of the circular hole is parallel to the upper surface of the warp fixing lock and passes through the warp fixing lock. The warp fixed lock also includes a fixed keyhole plug that is consistent in size and shape with the rectangular hole. When the warp thread passes through the warp thread fixed lock, the fixed lock hole plug can be inserted into the rectangular hole to fix the warp thread with friction.

本发明相对于现有技术。具有以下优点：The present invention is relative to the prior art. Has the following advantages:

(1)         使用时操作简便，克服现有技术中应用导电膏的脑电帽操作繁琐的缺点，能够快速完成对脑电采集的准备工作。(1) It is easy to operate when used, overcomes the disadvantages of cumbersome operation of the EEG cap using conductive paste in the prior art, and can quickly complete the preparation for EEG acquisition.

(2)         电极定位准确，克服了现有技术中弹性胶条网状脑电帽定位不准的缺点，提高脑电采集准确度。(2) The electrode positioning is accurate, which overcomes the shortcomings of the inaccurate positioning of the elastic strip mesh EEG cap in the prior art, and improves the accuracy of EEG acquisition.

(3)         电极触点与头皮接触牢靠，避免了使用导电膏情形时，对注入量的要求；同时也避免了弹性胶条网状脑电帽中少数电极与头皮接触不良的偶发情况。(3) The electrode contacts are in firm contact with the scalp, which avoids the requirement for injection volume when using conductive paste; at the same time, it also avoids the occasional situation of poor contact between a few electrodes in the elastic strip mesh EEG cap and the scalp.

附图说明Description of drawings

图1为现有技术中弹性胶条网状脑电帽示意图；Fig. 1 is a schematic diagram of an elastic rubber strip mesh EEG cap in the prior art;

图2为本发明脑电帽侧视图；Fig. 2 is a side view of the EEG cap of the present invention;

图3为电极座立体图；Fig. 3 is a perspective view of an electrode holder;

图4为电极座俯视图；Figure 4 is a top view of the electrode holder;

图5为电极销侧视图；Fig. 5 is a side view of an electrode pin;

图6为图5中电极销A-A方向视图；Fig. 6 is a view in the direction of electrode pin A-A in Fig. 5;

图7为电极销俯视图；Figure 7 is a top view of the electrode pin;

图8经线固定锁立体图。Fig. 8 is a perspective view of the warp fixing lock.

具体实施方式Detailed ways

如图2所示，本发明脑电帽包括用来包裹头部的半球状脑电帽主体1，按国际10-20系统中F3、F4、C3、C4、P3、P4、O1、O2电极位置固定在主体1上的电极座2，位于两侧耳下的经线固定锁3，连接两侧经线固定锁3的下颚固定带4以及与电极座2配合使用的电极销5（图2中未示出）。主体1由弹性面料构成，用来包裹前额，头顶及后脑。其中，国际10-20系统中F3、F4、C3、C4、P3、P4、O1、O2为本领域技术人员在脑电采集时选用的常用电位，这些电位包括了脑部主要功能区，从而满足了脑电采集中的需要。脑电帽主体1内有经线6，经线6的两端固定在脑电帽主体两边的经线固定锁3上，且每条经线6穿过两个在头部左右对应的电极座2。其中经线6为含涤纶纤维或橡胶的弹性绳。As shown in Figure 2, the EEG cap of the present invention includes a hemispherical EEG capmain body 1 for wrapping the head, according to the electrode positions of F3, F4, C3, C4, P3, P4, O1, O2 in the international 10-20 system Theelectrode base 2 fixed on themain body 1, the warpthread fixing lock 3 located under the ears on both sides, the lowerjaw fixing belt 4 connecting the warpthread fixing locks 3 on both sides, and theelectrode pin 5 used in conjunction with the electrode seat 2 (not shown in Figure 2 ). Themain body 1 is made of elastic fabric and is used to wrap the forehead, the top of the head and the back of the head. Among them, F3, F4, C3, C4, P3, P4, O1, and O2 in the international 10-20 system are common potentials selected by those skilled in the art when collecting EEG. These potentials include the main functional areas of the brain, so as to meet the Meet the needs of EEG acquisition. There arewarps 6 in the EEG capmain body 1, and the two ends of thewarps 6 are fixed on thewarp fixing locks 3 on both sides of the EEG cap main body, and eachwarp 6 passes through twocorresponding electrode holders 2 on the left and right sides of the head. Wherein thewarp thread 6 is an elastic rope containing polyester fiber or rubber.

如图3和图4所示，电极座2为圆柱型，母线长为CL，在轴心处沿轴线方向有一插孔21，插孔21包括一圆孔和一与圆孔相通的长方型孔，插孔21沿母线方向贯穿电极座2。其中，圆孔轴线与电极座2的轴线共线。电极座2在脑电帽内侧部分有经线孔22。经线孔22轴线与电极座2上下表面垂直，不与插孔21交叉，且贯穿电极座2。使用时，经线6通过经线孔22穿过电极座2。As shown in Figures 3 and 4, theelectrode base 2 is cylindrical, the length of the bus bar is CL, and there is asocket 21 along the axial direction at the axis. Thesocket 21 includes a round hole and a rectangular shape communicating with the round hole. Hole, thesocket 21 runs through theelectrode holder 2 along the direction of the busbar. Wherein, the axis of the circular hole is collinear with the axis of theelectrode seat 2 . Theelectrode holder 2 has a warp hole 22 at the inner part of the EEG cap. The axis of the meridian hole 22 is perpendicular to the upper and lower surfaces of theelectrode holder 2 , does not intersect with theinsertion hole 21 , and runs through theelectrode holder 2 . In use, thewarp thread 6 passes through theelectrode holder 2 through the thread hole 22 .

如图5、图6和图7所示，电极销5包括：竖直的圆柱型销身51；固定在销身51正上方的长方体销把52；固定在销身正下方的电极触点53；固定在销身51侧面，且底端与销身51底端相连的弹片组54。其中销身51母线长L，L=1.8CL。销把52和电极触点53的几何中心都在销身51的中轴线上。销身51和销把52在前者中轴线上有一导线孔521，导线孔521贯穿销身51与销把52，导线7通过导线孔521连接至电极触点53。弹片组54包括基板541、弹片542、滚头543及连接板544。基板541为水平的长方形板，其边541a通过连接板544与销身51连接。弹片542也是一长方形板，弹片542的一边542a与基板541中的边541a的临边重合。滚头543为一圆柱型结构，固定在弹片边542a的对边。滚头543的母线与销身51母线垂直，滚头543的侧面与弹片542相切。弹片组54整体高度为h，h=CL。弹片组54材料为弹性材料，如弹性塑料、薄铜片等。电极销5与电极座2配合使用。在装配时，先将电极销5在插入电极座2，此时销身51穿过插孔21的圆形孔部分，弹片组54穿过插孔21的矩形部分进入脑电帽内部。电极销5与电极座2相配合时，电极销5穿过插孔21插进脑电帽，其中电极销销身51穿过插孔21的圆形孔，弹片组54穿过插孔21的方形孔。电极销5插入电极座2后，保持电极座2不动，通过销把52针转动电极销5半圈，这时由于销身51母线长度L<h+CL，弹片542被压弯，电极销5被固定在电极座2上，电极触点53指向头部。As shown in Figure 5, Figure 6 and Figure 7, theelectrode pin 5 includes: a verticalcylindrical pin body 51; a cuboid pin handle 52 fixed directly above thepin body 51; anelectrode contact 53 fixed directly below the pin body ; Theshrapnel group 54 that is fixed on the side of thepin body 51 and whose bottom end is connected to the bottom end of thepin body 51 . Whereinpin body 51 bus length L, L=1.8CL. The geometric centers of the pin handle 52 and theelectrode contacts 53 are all on the central axis of thepin body 51 . Thepin body 51 and the pin handle 52 have awire hole 521 on the former axis. Thewire hole 521 runs through thepin body 51 and thepin handle 52 . The wire 7 is connected to theelectrode contact 53 through thewire hole 521 . The elastic piece set 54 includes abase plate 541 , anelastic piece 542 , aroller head 543 and a connectingplate 544 . Thebase plate 541 is a horizontal rectangular plate, and itsside 541 a is connected to thepin body 51 through a connectingplate 544 . Theelastic piece 542 is also a rectangular plate, and a side 542 a of theelastic piece 542 coincides with an adjacent side of theside 541 a of thebase plate 541 . Theroller head 543 is a cylindrical structure, and is fixed on the opposite side of the elastic sheet side 542a. The generatrix of theroller head 543 is perpendicular to the generatrix of thepin body 51 , and the side surface of theroller head 543 is tangent to theshrapnel 542 . The overall height of theshrapnel group 54 is h, where h=CL. Theshrapnel group 54 is made of elastic material, such as elastic plastic, thin copper sheet and the like. Theelectrode pin 5 is used in conjunction with theelectrode holder 2 . When assembling, first insert theelectrode pin 5 into theelectrode holder 2, at this time thepin body 51 passes through the circular hole part of thejack 21, and theshrapnel group 54 passes through the rectangular part of thejack 21 and enters the inside of the EEG cap. When theelectrode pin 5 is matched with theelectrode holder 2, theelectrode pin 5 is inserted into the EEG cap through thesocket 21, wherein theelectrode pin body 51 passes through the circular hole of thesocket 21, and theshrapnel group 54 passes through the hole of thesocket 21. Square hole. After theelectrode pin 5 is inserted into theelectrode holder 2, keep theelectrode holder 2 still, and turn theelectrode pin 5 half a circle through thepin handle 52. At this time, because the length of the busbar of the pin body 51 L<h+CL, theshrapnel 542 is bent, and theelectrode pin 5 is fixed on theelectrode holder 2, and theelectrode contact 53 points to the head.

如图8所示，经线固定锁3为圆柱型，在经线固定锁3中轴线处有一穿过经线固定锁3上下表面的矩形孔31。在经线固定锁3侧面有一经过其中轴线与矩形孔相交的圆孔32。圆孔32中轴线与经线固定锁3上表面平行，且穿过经线固定锁3。经线固定锁3还包括一与其矩形孔31大小形状均一致的固定锁孔塞。在经线6穿过经线固定锁3时，即可用固定锁孔塞塞入矩形孔31 ，用摩擦力来固定经线6。As shown in FIG. 8 , thewarp fixing lock 3 is cylindrical, and there is arectangular hole 31 passing through the upper and lower surfaces of thewarp fixing lock 3 at the central axis of thewarp fixing lock 3 . There is acircular hole 32 crossing the central axis and the rectangular hole on the side of the warp fixedlock 3 . The central axis of thecircular hole 32 is parallel to the upper surface of the warp fixedlock 3 and passes through the warp fixedlock 3 . The warp fixedlock 3 also includes a fixed lockhole plug that is consistent in size and shape with therectangular hole 31 . Whenwarp thread 6 passed through warp thread fixedlock 3, the available fixed keyhole plug was inserted intorectangular hole 31, andwarp thread 6 was fixed with frictional force.

使用时，先将4条经线6各穿过1对在头部左右对应的电极座2的经线孔22，经线6的两端分别通过圆孔32穿过脑电帽主体1两侧的经线固定锁3。4条经线穿好后先将一个固定锁孔塞塞入一个经线固定锁矩形孔31，固定经线的一端。之后，将8个电极销5按电极名称固定到对应的电极座2。之后将脑电帽带在受试者头上，并将下颚固定带4套在受试者的下颚，以固定脑电帽。由于脑电帽采用弹性材料，在带到受试者头部的同时，各电极座也自动的匹配到标准电极位置所对应的点，从而方便了电极定位。带好脑电帽后拉动经线未被固定的一端，使4条经线均略微受力，此时将固定锁孔塞塞入该段的经线固定锁矩形孔31以固定经线6。这样，经线6受力后会使被其穿过的电极座2受到向头部方向的力，使原本电极触点53已经接触到头部的电极销5的弹片542再次受力，弯曲得更大，使其对应的电极座2更加接近头部，带动脑电帽整体更贴近头皮。若在刚戴上脑电帽尚有未与头部接触的电极触点，拉紧经线6后，所有电极座2都离头部更近了些，使未与头部接触的电极触点接触到头部。这样就避免了局部区域存在多个电极时，将脑电帽支撑起来，使区域中个别电极接触不到头皮的情况。When in use, first pass the fourwarps 6 through a pair of warp holes 22 corresponding to the left andright electrode holders 2 of the head, and the two ends of thewarps 6 pass through the round holes 32 and fix the warps on both sides of the EEG capmain body 1 respectively.Lock 3. After the 4 warps are threaded, a fixed keyhole plug is plugged into a warp fixed lockrectangular hole 31 to fix one end of the warp. Afterwards, fix the eightelectrode pins 5 to the correspondingelectrode holders 2 according to the electrode names. After that, put the EEG cap on the subject's head, and set thechin fixing belt 4 on the subject's chin to fix the EEG cap. Since the EEG cap is made of elastic material, when it is brought to the subject's head, each electrode seat is automatically matched to the point corresponding to the standard electrode position, thereby facilitating electrode positioning. After putting on the EEG cap, pull the unfixed end of the warp thread, so that the 4 warp threads are all slightly stressed. At this time, the fixed lock hole plug is inserted into the warp thread fixing lockrectangular hole 31 of this section to fix thewarp thread 6. In this way, after thewarp 6 is stressed, theelectrode holder 2 passed by it will be subjected to a force toward the head, so that theelastic piece 542 of theelectrode pin 5 that theoriginal electrode contact 53 has touched the head is stressed again, and it bends more. Larger, so that the correspondingelectrode holder 2 is closer to the head, driving the EEG cap to be closer to the scalp as a whole. If there are electrode contacts that are not in contact with the head just after putting on the EEG cap, after thewarp 6 is tightened, all theelectrode holders 2 are closer to the head, so that the electrode contacts that are not in contact with the head are in contact. to the head. In this way, it is avoided that when there are multiple electrodes in a local area, the EEG cap is supported so that individual electrodes in the area cannot touch the scalp.

本发明使用时操作简便，电极定位准确，电极触点与头皮接触牢靠，克服了现有技术中定位不准，导电膏用量难以把握，电极与头皮接触不牢靠等缺点，使得脑电采集工作更加快捷、准确。The invention is easy to operate when used, the electrode is positioned accurately, and the electrode contacts are firmly in contact with the scalp, which overcomes the shortcomings of the prior art, such as inaccurate positioning, difficulty in controlling the amount of conductive paste, and unreliable contact between the electrode and the scalp, making the EEG collection work easier. Fast and accurate.

另外，本发明也可根据需要，增加或减少电极座的数量，并配合相应数量的经线，以满足不同情况下脑电采集的需求。In addition, the present invention can also increase or decrease the number of electrode holders according to needs, and cooperate with a corresponding number of warps to meet the needs of EEG collection in different situations.

Claims (3)

1. the brain of a multi-ensuring contact close contact scalp that adopts socket electricity cap, comprise F3, F4, C3, C4, P3, P4, O1, O2 electrode position in the international 10-20 system of hemispherical brain electricity cap main body ,An be fixed on electrode tip holder in main body, be positioned at two pick up the ears the fixing lock of lower warp, connect the fixing lower jaw fixing band of locking of both sides warp and with the electrode pin that electrode tip holder is used in conjunction with, it is characterized in that:

Described hemispherical brain electricity cap main body consists of elastic fabric, in hemispherical brain electricity cap main body, has warp, and the two ends of this warp are fixed on the warp on hemispherical brain electricity cap main body both sides and fixedly lock, and every warp is through two electrode tip holders corresponding about head;

Electrode tip holder in described main body is column type, bus is long is CL, and in axle center, there is a jack at place along axis direction, and jack comprises the rectangle hole that a circular hole and communicates with circular hole, jack is along axis direction penetrating electrode seat, the axis conllinear of the axis of circular hole and electrode tip holder; Electrode tip holder is in the warp hole that has of brain electricity cap inner side part, and this warp axially bored line is parallel with electrode tip holder upper and lower surface, does not intersect with jack and penetrating electrode seat;

Described electrode pin comprises vertical column type pin body, be fixed on cuboid pin directly over pin body, be fixed on electrode contacts under pin body, be fixed on the shell fragment group that pin body side and bottom are connected with pin body low side; Wherein sell the long L of body bus, L=1.8CL; The geometric center of pin handle and electrode contacts is all on the axis of pin body, and pin body and pin there being a wire guide on the axis of pin body, and wire guide runs through pin body and pin handle, and wire is connected to electrode contacts by wire guide; Shell fragment group comprises substrate, shell fragment, roller-head and connecting plate; Substrate is the rectangular slab of level, and its limit (541a) is connected with pin body by connecting plate; Shell fragment is also a rectangular slab, and one side of shell fragment (542a) overlaps with the limit of facing on limit (541a) in substrate; Roller-head is a cylindrical structure, is fixed on the shell fragment opposite side of (542a) on one side, and roller-head bus is vertical with pin body bus, and side and the shell fragment of roller-head are tangent; Shell fragment group whole height is h, h=CL;

Described warp is fixing to be locked for column type, at the place, axis of the fixing lock of warp, has one to pass the rectangular opening that warp is fixedly locked lower surface; In the fixing lock of warp side, have one through the crossing circular hole of axis and rectangular opening wherein, it is parallel that circular hole axis and warp fixedly are locked surface, and pass warp and fix and lock; Warp fixedly lock also comprise one with the equal consistent fixedly lockhole plug of its rectangular opening size shape, at warp, during through the fixing lock of warp, available fixedly lockhole plug is filled in rectangular opening, by frictional force, fixes warp.

2. brain electricity cap according to claim 1, is characterized in that: described warp is the elastic threads containing polyster fibre or rubber.

3. brain electricity cap according to claim 1, is characterized in that: described shell fragment group material selection elastoplast or scale copper.

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