技术领域technical field
本实用新型涉及医疗设备技术领域，更具体地，涉及一种医疗影像领域中的光电同步脑功能成像技术，尤其是一种光电同步脑功能成像仪及其使用的头盔。The utility model relates to the technical field of medical equipment, more specifically, to a photoelectric synchronous brain function imaging technology in the field of medical imaging, in particular to a photoelectric synchronous brain function imaging instrument and a helmet used therein.
背景技术Background technique
脑功能活动包含神经元活动和局部能量代谢等多个过程。研究者通过观测多种模态的脑活动信号对脑功能进行探索，其中最具代表性的是神经元的电活动和局部血氧代谢变化两种模态的信息。近半个世纪以来，大量基于单一模态信息的研究已深深推动了人们对脑功能的了解。然而作为脑功能活动的不同角度，只有实现对不同模态信息的有效融合，才能将脑功能活动有机的联系起来。目前将神经电生理设备和代谢过程检测设备结合，充分利用两者的优势，已经成为深度探测和理解神经信息的重要途径。Brain functional activities include multiple processes such as neuron activity and local energy metabolism. Researchers explore brain function by observing brain activity signals of various modalities, the most representative of which are the electrical activity of neurons and the information of changes in local blood oxygen metabolism. For nearly half a century, a large number of studies based on single-modal information have deeply advanced people's understanding of brain function. However, as different perspectives of brain functional activities, only by realizing the effective fusion of different modal information can the brain functional activities be organically linked. At present, the combination of neuroelectrophysiological equipment and metabolic process detection equipment, making full use of the advantages of both, has become an important way to deeply detect and understand neural information.
光电同步脑功能成像仪是一种正在研发的，旨在通过将功能近红外光谱技术和脑电采集技术的有效融合，在同一仪器上实现近红外光谱仪、脑电仪及近红外光谱和脑电融合仪三个功能一体化的仪器。它可实现脑区神经电活动和血氧供应信息的同步采集等多种功能，将是融合研究脑神经电活动和血氧活动的重要成像技术。Photoelectric Synchronous Brain Functional Imager is a research and development, aiming to achieve near-infrared spectroscopy, EEG and near-infrared spectroscopy and EEG on the same instrument through the effective integration of functional near-infrared spectroscopy and EEG acquisition technology. The fusion instrument is an instrument with three functions integrated. It can realize multiple functions such as synchronous collection of neural electrical activity and blood oxygen supply information in brain regions, and will be an important imaging technology for the fusion study of brain electrical activity and blood oxygen activity.
目前，尽管已有一些研究利用独立的脑电和近红外成像系统，将脑电中的电极与近红外成像中的光极简单交叉排布在某一脑区，实现光电同步脑功能成像，但是这些研究采用的排布方式存在一些不容忽视的问题。首先，大多数研究仅在少数近红外光通道范围中放置脑电电极。例如岛津公司生产的光电同步检测头盔共103个光通道，却只有32个脑电电极，有超过三分之二的区域没有做到真正的光电同步检测，这样的成像方式不利于进行各个脑区中神经电活动和血氧供应信息融合研究，仅是有限的成像条件下的一种折中方案。其次，目前大多数研究是根据特定的实验要求进行的特异性排布，其排布方式无法推广到其他脑区的观测，也无法推广到其他实验目的下的研究；且不同实验室之间的可重复性差，不利于对研究结果的重复性验证。因此不适合作为可推广的头盔使用。另外，现有近红外成像大多按照矩阵形式将光源探头与光接收探头交叉排布，所需光源探头与光接收探头的数目基本相匹配。而光探测装置的成本远大于光源发射装置，因此如果能在光通道数基本不变的基础上尽量减少光接收探头数目，其成本将远小于目前已有的排布方式的成本。At present, although there have been some studies using independent EEG and near-infrared imaging systems, the electrodes in the EEG and the light poles in the near-infrared imaging are simply crossed and arranged in a certain brain area to achieve photoelectric synchronous brain functional imaging. There are some problems with the arrangement used in these studies that cannot be ignored. First, most studies only placed EEG electrodes in the range of a few near-infrared optical channels. For example, the photoelectric synchronous detection helmet produced by Shimadzu Corporation has a total of 103 optical channels, but only 32 EEG electrodes, and more than two-thirds of the area has not achieved real photoelectric synchronous detection. The research on the fusion of nerve electrical activity and blood oxygen supply information in the region is only a compromise under limited imaging conditions. Secondly, most of the current research is based on the specific arrangement of specific experimental requirements, and its arrangement cannot be extended to the observation of other brain regions, nor can it be extended to research under other experimental purposes; and the differences between different laboratories The repeatability is poor, which is not conducive to the repeatability verification of the research results. Therefore not suitable for use as a generalizable helmet. In addition, the existing near-infrared imaging mostly arranges light source probes and light receiving probes in a matrix form, and the number of required light source probes and light receiving probes basically matches. The cost of the light detection device is much higher than that of the light source emission device. Therefore, if the number of light receiving probes can be reduced as much as possible while the number of optical channels is basically unchanged, the cost will be much lower than the cost of the existing arrangement.
发明内容Contents of the invention
针对上述问题，本实用新型的目的是提供一种光电同步脑功能成像仪及其使用的头盔，既可以满足在特定脑区范围内对脑电和血氧活动一一对应同步检测的需求，具有良好的通用性和可拓展性，又能采用尽量少的光检测探头数目，降低实验成本。In view of the above problems, the purpose of this utility model is to provide a photoelectric synchronous brain function imager and the helmet used therein, which can meet the demand for one-to-one synchronous detection of EEG and blood oxygen activity within the scope of specific brain regions, and has It has good versatility and scalability, and can use as few light detection probes as possible to reduce the experimental cost.
为了达到上述目的，作为本实用新型的一个方面，本实用新型提供了一种适合于光电同步脑功能成像用的头盔，其特征在于，由一片或多片覆盖于脑部且与脑部曲率相吻合的柔性材料制成；以及In order to achieve the above purpose, as an aspect of the present invention, the present invention provides a helmet suitable for photoelectric synchronous brain functional imaging, which is characterized in that one or more pieces cover the brain and have the same curvature as the brain. Conformable flexible material; and
所述头盔上排布有用于与脑电电极、激光光源探头和/或激光接收探头以可拆卸的方式连接的多个通孔。A plurality of through holes for detachably connecting with EEG electrodes, laser light source probes and/or laser receiving probes are arranged on the helmet.
其中，每片所述柔性材料的外形为正八边形。Wherein, the shape of each piece of flexible material is a regular octagon.
其中，每片所述柔性材料上排布有用于与8个脑电电极、8个激光光源探头和1个激光接收探头以可拆卸的方式连接的17个通孔。Wherein, 17 through holes for detachably connecting with 8 EEG electrodes, 8 laser light source probes and 1 laser receiving probe are arranged on each piece of the flexible material.
其中，所述通孔的具体排布方式为：Wherein, the specific arrangement of the through holes is:
用于接插所述激光光源探头的8个通孔，以正八边形的方式排列；8 through holes for plugging the laser light source probe are arranged in a regular octagonal manner;
用于接插所述激光接收探头的1个通孔，位于所述正八边形的中心；以及A through hole for inserting the laser receiving probe, located at the center of the regular octagon; and
用于接插脑电电极的8个通孔，呈正方形排布，所述8个通孔分别位于所述正方形的顶点和每个边长的中点处，同时也位于所述正八边形八个顶点与中心的连接线上，以及所述正方形位于所述正八边形的内部，中心与所述正八边形的中心重合。The 8 through holes for plugging in the EEG electrodes are arranged in a square, and the 8 through holes are respectively located at the vertices of the square and the midpoint of each side length, and are also located at the eighth point of the regular octagon. Vertices and the connecting line of the center, and the square is located inside the regular octagon, and the center coincides with the center of the regular octagon.
其中，所述8个插接脑电电极的通孔所围成的正方形的边长M为：2.7cm≤M≤4.06cm；以及Wherein, the side length M of the square surrounded by the 8 through holes for plugging in the EEG electrodes is: 2.7cm≤M≤4.06cm; and
所述正八边形的边长L为：1.91cm≤L≤3.83cm。The side length L of the regular octagon is: 1.91cm≤L≤3.83cm.
其中，通过柔性连接材料将多片所述柔性材料的头盔相连，实现头盔的拓展。Wherein, a plurality of helmets of the flexible material are connected through a flexible connecting material, so as to realize the expansion of the helmet.
其中，所述激光为近红外激光，波长介于600nm至1000nm之间。Wherein, the laser is a near-infrared laser with a wavelength between 600nm and 1000nm.
其中，所述用于插入光源探头和光接收探头的通孔能够插入传导近红外光的光纤。Wherein, the through hole for inserting the light source probe and the light receiving probe can be inserted into an optical fiber that conducts near-infrared light.
其中，所述用于插入光源探头和光接收探头的通孔能够互换，即用于插入光源探头的通孔接插光接收探头，而用于插入光接收探头的通孔接插光源探头。Wherein, the through hole for inserting the light source probe and the light receiving probe can be interchanged, that is, the through hole for inserting the light source probe is connected to the light receiving probe, and the through hole for inserting the light receiving probe is connected to the light source probe.
作为本实用新型的另一个方面，本实用新型提供了一种光电同步脑功能成像仪，包括主机、如上任意一项所述的适合于光电同步脑功能成像用的头盔，和/或脑电电极、激光光源探头、激光接收探头。As another aspect of the utility model, the utility model provides a photoelectric synchronous brain function imaging device, including a host, a helmet suitable for photoelectric synchronous brain function imaging as described in any one of the above, and/or EEG electrodes , Laser light source probe, laser receiving probe.
其中，所述适合于光电同步脑功能成像用的头盔上具有多个用于插入光源探头的通孔，所述不同光源探头的发射光加载不同的调制频率予以区分。Wherein, the helmet suitable for photoelectric synchronous brain functional imaging has a plurality of through holes for inserting light source probes, and the emitted light of different light source probes is loaded with different modulation frequencies to distinguish them.
通过上述技术方案可知，本实用新型的光电同步脑功能成像仪及其使用的头盔，由于采用正八边形和内含正方形的电极排布方式，不仅可实现在特定脑区范围内对脑电和血氧活动一一对应的同步检测，具有良好的通用性和可拓展性，还能采用尽量少的光检测探头数目，降低实验成本；并且，在检测成本最小的基础上最大程度的提高了检测通道的密集程度，每个检测通道都使光电信号一一对应，为研究神经电生理活动和血氧活动的关系提供了丰富信息。It can be seen from the above-mentioned technical scheme that the photoelectric synchronous brain function imager and the helmet used in the utility model can not only realize the EEG and EEG within the scope of specific brain regions due to the use of regular octagonal and embedded square electrodes. The one-to-one synchronous detection of blood oxygen activity has good versatility and scalability, and can also use as few light detection probes as possible to reduce the experimental cost; moreover, it maximizes the detection cost on the basis of the minimum detection cost. The density of the channels, each detection channel makes a one-to-one correspondence of photoelectric signals, which provides rich information for studying the relationship between nerve electrophysiological activity and blood oxygen activity.
附图说明Description of drawings
图1是近红外光在大脑组织中的传播路径示意图；Figure 1 is a schematic diagram of the propagation path of near-infrared light in brain tissue;
图2是国际标准的“10-20”、“10-10”、“10-5”系统的电极排布方式示意图；Figure 2 is a schematic diagram of the electrode arrangement of the international standard "10-20", "10-10", and "10-5" systems;
图3是本实用新型的正八边形适用于光电同步脑功能成像用的头盔的通孔排列位置的示意图；Fig. 3 is the schematic diagram of the through-hole arrangement position of the regular octagon of the utility model suitable for the photoelectric synchronous brain functional imaging helmet;
图4是本实用新型的正八边形适用于光电同步脑功能成像用的头盔的光通道及电极位置的示意图；Fig. 4 is the schematic diagram of the light channel and the electrode position of the helmet that the regular octagon of the utility model is suitable for photoelectric synchronous brain function imaging;
图5是作为本实用新型的一个实施例的两个位于双侧运动区的本实用新型的光电同步脑功能成像头盔的通孔排列位置的示意图。Fig. 5 is a schematic diagram of the through-hole arrangement positions of two photoelectric synchronous brain functional imaging helmets of the present invention located in the bilateral motor areas as an embodiment of the present invention.
具体实施方式Detailed ways
为使本实用新型的技术方案及应用环境更加清楚明白，下面结合具体实施例和附图对本实用新型作进一步的详细说明。In order to make the technical solution and application environment of the utility model clearer, the utility model will be further described in detail below in conjunction with specific embodiments and accompanying drawings.
本实验新型专利旨在开发出一套适合光电同步脑功能成像的头盔，不仅可实现在特定脑区范围内对脑电和血氧活动一一对应的同步检测，并具有良好的通用性和可拓展性，还能采用尽量少的光检测探头数目，降低实验成本。This experimental new patent aims to develop a set of helmets suitable for photoelectric synchronous brain functional imaging, which can not only realize the one-to-one synchronous detection of EEG and blood oxygen activity within a specific brain area, but also has good versatility and reliability. Expandability, but also use as few light detection probes as possible to reduce the cost of the experiment.
光电同步脑成像头盔需要满足近红外光谱成像探头排布和脑电成像电极排布的双重要求，具体如下：The photoelectric synchronous brain imaging helmet needs to meet the dual requirements of near-infrared spectral imaging probe arrangement and EEG electrode arrangement, as follows:
首先，对于基于近红外光谱的脑血氧检测，近红外光(波长为600至1000nm的电磁波)通过发射探头经头皮表面入射到大脑组织，经过血红蛋白、脱氧血红蛋白等物质的吸收以及各个组织细胞的散射，形成“香蕉形状”的光通道由头皮表面射出，被接收探头检测(如图1所示)。因此，近红外光的检测区域(即光通道)位于在光源探头和检测探头之间，且其在大脑组织中的传播路径和检测深度由发射探头和接收探头之间的距离决定。目前研究者公认光源探头和接收探头之间的距离在2-5cm之间时光通道可通过脑组织且接收信号的信噪比可接受，其中为3cm左右时为最佳。First of all, for the detection of cerebral blood oxygen based on near-infrared spectroscopy, near-infrared light (electromagnetic waves with a wavelength of 600 to 1000 nm) is incident on the brain tissue through the scalp surface through the emission probe, and is absorbed by substances such as hemoglobin and deoxyhemoglobin and absorbed by various tissue cells. The scattered, "banana-shaped" light channel emerges from the surface of the scalp and is detected by the receiving probe (as shown in Figure 1). Therefore, the near-infrared light detection area (that is, the optical channel) is located between the light source probe and the detection probe, and its propagation path and detection depth in the brain tissue are determined by the distance between the emitting probe and the receiving probe. At present, researchers believe that the distance between the light source probe and the receiving probe is between 2-5cm, the light channel can pass through the brain tissue and the signal-to-noise ratio of the received signal is acceptable, and the best is about 3cm.
其次，对于脑电检测，其信号来源为脑自身的神经电活动产生的电磁波，因此仅需检测电极，无需外界的信号发射装置。目前，国际上公认的脑电电极的排布方式为“10-20”、“10-10”、“10-5”系统(如图2所示)。它们都是一系列在头皮表面的空间点集，其空间位置的确定准则是根据纵横两条标志线：从鼻凹经头顶到枕骨隆突的纵连线和从左耳外耳道经头顶到右耳外耳道之间的横连线，将两条标志线的长度按照20％、10％或5％来等分，随后纵横交错确定出全脑均匀分布的系列点集。均匀分布是指各个方向的相邻点之间距离基本一致。“10-5”系统全脑可达345个点，其中一部分子集构成了目前通用的128通道EEG电极排布的位置。由于该系统是通过对头皮表面纵横两条标志线的等分确定的各点位置，相邻两点间间距与人头部大小有关。根据统计，儿童至成人的头围为40-65cm，鼻凹至枕骨隆突的纵连接线为27-37.8cm，两耳之间的横连接线长为30.5-40.5cm。因此可估算出“10-5”系统相邻两点之间间距约1.35cm至2.03cm。Secondly, for EEG detection, the signal source is the electromagnetic wave generated by the brain's own neural electrical activity, so only the detection electrodes are needed, and no external signal transmitting device is required. Currently, the internationally recognized arrangement of EEG electrodes is the "10-20", "10-10", and "10-5" systems (as shown in FIG. 2 ). They are all a series of spatial point sets on the surface of the scalp, and their spatial positions are determined based on two vertical and horizontal marking lines: the longitudinal line from the nasal concave through the top of the head to the occipital prominence and the line from the external auditory canal of the left ear through the top of the head to the right ear The horizontal connecting line between the external auditory canals divides the length of the two marking lines equally according to 20%, 10% or 5%, and then crisscross to determine a series of point sets evenly distributed in the whole brain. Uniform distribution means that the distance between adjacent points in all directions is basically the same. The "10-5" system can reach up to 345 points in the whole brain, a subset of which constitutes the position of the current general 128-channel EEG electrode arrangement. Since the system determines the position of each point by equally dividing two vertical and horizontal marking lines on the scalp surface, the distance between two adjacent points is related to the size of the human head. According to statistics, the head circumference of a child to an adult is 40-65cm, the longitudinal connecting line from the nasal cavity to the occipital prominence is 27-37.8cm, and the length of the transverse connecting line between the two ears is 30.5-40.5cm. Therefore, it can be estimated that the distance between two adjacent points of the "10-5" system is about 1.35cm to 2.03cm.
本实用新型所设计的适合光电同步脑功能成像的头盔的形状不限，但要求包含正八边形的区域，优选的头盔的形状即为正八边形。内含正八边形中心到顶角的距离为从2.5cm到5cm的任意值，相应的正八边形的边长从1.91cm至3.83cm范围之间变化。如图3所示，本文以下部分用A表示正八边形中心到顶角的距离，用L表示正八边形的边长。L和A具有以下关系：L＝cos(67.5°)×2×A＝0.7654×A。八边形内部有以正方形形状排布的8个通孔，该正方形的边长为从2.7cm至4.06cm的任意值。本文以下部分用M表示正方形的边长。The shape of the helmet suitable for photoelectric synchronous brain functional imaging designed by the utility model is not limited, but it is required to include a regular octagonal area, and the preferred shape of the helmet is a regular octagon. The distance from the center of the regular octagon to the vertex is any value from 2.5cm to 5cm, and the side length of the corresponding regular octagon varies from 1.91cm to 3.83cm. As shown in Figure 3, the following part of this paper uses A to represent the distance from the center of the regular octagon to the top corner, and L to represent the side length of the regular octagon. L and A have the following relationship: L=cos(67.5°)×2×A=0.7654×A. There are 8 through holes arranged in a square shape inside the octagon, and the side length of the square is any value from 2.7cm to 4.06cm. In the following part of this paper, M is used to represent the side length of a square.
正八边形中共有17个通孔，其中八边形的顶角处的8个通孔可插放光源发射探头，八边形中心的1个通孔可插放光检测探头，如图4所示，每个光源发射探头和光检测探头之间都可形成一个光通道。内部正方形的顶角和边的中点处有8个通孔，可插放脑电检测电极。如图4所示，脑电电极的位置均与光通道位置重合。There are 17 through holes in the regular octagon, among which 8 through holes at the top corners of the octagon can be inserted into the light source emission probe, and 1 through hole in the center of the octagon can be inserted into the light detection probe, as shown in Figure 4 As shown, an optical channel can be formed between each light source emission probe and light detection probe. There are 8 through holes at the top corners and midpoints of the sides of the inner square, which can be used to insert EEG detection electrodes. As shown in Figure 4, the positions of the EEG electrodes coincide with the positions of the optical channels.
在最佳设计下，正八边形的8个顶角安放8个近红外光光源探头，每个探头可发射波长介于600nm至1000nm之间的两个或多个特定波长的近红外光。不同发射探头的发射光加载不同的调制频率予以区分。正八边形的中心安放1个近红外光接收探头，可接收到所有发射探头的光信号，并根据不同发射光源的调制频率通过数字或模拟解调的方式，获得来自每个发射探头的信号。因此，正八边形的覆盖范围内可有8个不完全重合的光通道。Under the optimal design, 8 near-infrared light source probes are placed on the 8 corners of the regular octagon, and each probe can emit near-infrared light of two or more specific wavelengths between 600nm and 1000nm. The emitted light of different emission probes is loaded with different modulation frequencies to distinguish them. A near-infrared light receiving probe is placed in the center of the regular octagon, which can receive the optical signals of all transmitting probes, and obtain the signal from each transmitting probe through digital or analog demodulation according to the modulation frequency of different transmitting light sources. Therefore, there may be 8 optical channels that do not completely overlap within the coverage of the regular octagon.
所述的正八边形光电同步脑功能成像头盔的脑电电极通孔位置位于正八边形内部，正方形排布。其中心与正八边形的中心重合，其四个顶点和四个边长中点均位于正八边形顶点与中心的连接线上；其半边长M/2为1.35cm至2.03cm，边长M为2.7cm至4.06cm。在最佳设计下，正方形的四个顶点和四个边长中点均插放脑电电极，与近红外成像的八个光通道一一对应，形成八个光电同步检测单元。该设计下，只要适当调整八边形的放置位置，电极位置将基本符合国际通用的“10-5”系统标准。The through-holes of the EEG electrodes of the regular octagon photoelectric synchronous brain function imaging helmet are located inside the regular octagon and arranged in a square. Its center coincides with the center of the regular octagon, and its four vertices and midpoints of the four side lengths are all located on the connecting line between the vertices and the center of the regular octagon; its half-side length M/2 is 1.35cm to 2.03cm, and the side length M 2.7cm to 4.06cm. Under the optimal design, the four vertices and the midpoints of the four sides of the square are all inserted with EEG electrodes, which correspond to the eight optical channels of near-infrared imaging one-to-one, forming eight photoelectric synchronous detection units. Under this design, as long as the placement position of the octagon is properly adjusted, the electrode position will basically conform to the internationally accepted "10-5" system standard.
所述的适合于光电同步脑功能成像用的头盔，用于插入光源探头和光接收探头的通孔，或可插入传导近红外光的光纤。The helmet suitable for photoelectric synchronous brain function imaging is used for inserting the through holes of the light source probe and the light receiving probe, or can insert the optical fiber that conducts near-infrared light.
所述的适合于光电同步脑功能成像用的头盔，用于插入光源探头和光接收探头的通孔，在实验条件允许下，或可互换，即正八边形中心通孔接插光源探头，正八边形顶角位置通孔接插光接收探头。下面通过具体实施例来介绍本实用新型的具体设计方案。The helmet suitable for photoelectric synchronous brain functional imaging is used for inserting the light source probe and the through hole of the light receiving probe. Under the experimental conditions, it may be interchangeable, that is, the light source probe is inserted into the regular octagonal central through hole, and the regular octagon The light receiving probe is connected to the through hole at the position of the vertices of the polygon. Introduce the concrete design scheme of the present utility model through specific embodiment below.
本实施例计划研究成年受试者感觉运动系统的脑功能活动。因为成年人头围约为54cm至58cm，鼻凹经头顶到枕骨隆突的纵标志线以及两侧外耳道连线的横标志线的平均长度为37cm，“10-5”系统中电极间距约为标志线长度的5％。因此估算M/2约为37*5％＝1.85cm，即M＝3.7cm。指定A＝3cm，L＝2.3cm。This example plans to study the brain functional activity of the sensorimotor system in adult subjects. Because the head circumference of an adult is about 54cm to 58cm, the average length of the longitudinal marking line from the nasal concave to the occipital prominence and the horizontal marking line connecting the external auditory canals on both sides is 37cm, and the electrode spacing in the "10-5" system is about 5% of the line length. Therefore, it is estimated that M/2 is about 37*5%=1.85cm, that is, M=3.7cm. Specify A=3cm, L=2.3cm.
由于感觉运动系统对称分布在脑两侧，位置主要在“10-5”系统中左侧C1、C3和右侧C2、C4附近。因此本实施例计划采用两个正八边形光电同步记录头盔，将其分别放置在左右感觉运动区，利用柔性材料将头盔固定在头部并保证位置稳定。具体如图5所示。其中左侧正八边形的中心(即光检测探头d1)位于C1和C3之间，电极e1至e8分别对应FCC3、FCC3h、FCC1、C1、CCP1、CCP3h、CCP3和C3位置。右侧正八边形的中心(即光检测探头d2)位于C2和C4之间，电极e9至e16分别对应FCC2、FCC4h、FCC4、C4、CCP4、CCP4h、CCP2和C2位置。该电极群基本涵盖目前基于EEG的感觉运动任务研究中主要关注的电极位置，符合实验要求。与各电极对应，两个正八边形的头盔外周顶点位置都插放光源探头s1至s16，形成16个与各脑电电极一一对应的光通道，用于检测双侧感觉运动系统的血氧活动。从而实现光电同步脑功能成像。Since the sensorimotor system is symmetrically distributed on both sides of the brain, it is mainly located near C1 and C3 on the left and C2 and C4 on the right in the "10-5" system. Therefore, this embodiment plans to adopt two regular octagon photoelectric synchronous recording helmets, which are respectively placed in the left and right sensorimotor areas, and the helmets are fixed on the head by flexible materials to ensure a stable position. Specifically shown in Figure 5. The center of the regular octagon on the left (ie, the light detection probe d1) is located between C1 and C3, and the electrodes e1 to e8 correspond to the positions of FCC3, FCC3h, FCC1, C1, CCP1, CCP3h, CCP3 and C3, respectively. The center of the regular octagon on the right (that is, the light detection probe d2) is located between C2 and C4, and the electrodes e9 to e16 correspond to the positions of FCC2, FCC4h, FCC4, C4, CCP4, CCP4h, CCP2 and C2, respectively. The electrode group basically covers the electrode positions that are mainly concerned in the current EEG-based sensorimotor task research, and meets the experimental requirements. Corresponding to each electrode, light source probes s1 to s16 are inserted at the vertices of the two regular octagonal helmets to form 16 optical channels corresponding to each EEG electrode, which are used to detect the blood oxygen of the bilateral sensorimotor system Activity. In this way, photoelectric synchronous brain functional imaging can be realized.
如图5所示，本实用新型的头盔例如可以通过两点定位(C1和C3，或者C2和C4)，通过两个通孔对准头部对应的“10-20”、“10-10”或“10-5”系统点，即可将所述头盔在头部定位。然后，可以通过柔性材料来将所述头盔固定在头部的相应位置，实现头部特定区域的光电检测。为了节约时间，如图5所示，还可以利用柔性连接材料将多片材料相连，实现头盔的拓展，从而实现多脑区的同步观测。As shown in Figure 5, the helmet of the present invention can, for example, be positioned through two points (C1 and C3, or C2 and C4), and align the corresponding "10-20" and "10-10" of the head through two through holes. Or "10-5" system points to position the helmet on the head. Then, the helmet can be fixed at a corresponding position on the head through a flexible material, so as to realize photoelectric detection of a specific area of the head. In order to save time, as shown in Figure 5, flexible connecting materials can also be used to connect multiple pieces of material to realize the expansion of the helmet, thereby realizing simultaneous observation of multiple brain regions.
最后应当说明的是，以上实施内容仅仅是使用了特殊的过程用于举例，实际上可对其中过程进行更改，在不偏离本实用新型构思的条件下，均在本实用新型的保护范围之内。Finally, it should be noted that the above implementation content only uses a special process for example. In fact, the process can be changed. Under the condition of not departing from the concept of the utility model, it is within the scope of protection of the utility model. .
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420536387.8UCN204181624U (en) | 2014-09-18 | 2014-09-18 | The helmet of photoelectric synchronous cerebral function imaging instrument and use thereof |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420536387.8UCN204181624U (en) | 2014-09-18 | 2014-09-18 | The helmet of photoelectric synchronous cerebral function imaging instrument and use thereof |
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| CN204181624Utrue CN204181624U (en) | 2015-03-04 |
| Application Number | Title | Priority Date | Filing Date |
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| CN201420536387.8UExpired - LifetimeCN204181624U (en) | 2014-09-18 | 2014-09-18 | The helmet of photoelectric synchronous cerebral function imaging instrument and use thereof |
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| CN (1) | CN204181624U (en) |
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