WO2015033440A1

WO2015033440A1 - Brain function measuring device and probe holder for brain function measuring device

Info

Publication number: WO2015033440A1
Application number: PCT/JP2013/074111
Authority: WO
Inventors: 晴英宇田川
Original assignee: 株式会社島津製作所
Priority date: 2013-09-06
Filing date: 2013-09-06
Publication date: 2015-03-12
Also published as: JPWO2015033440A1; JP6146475B2

Abstract

This brain function measuring device (100) comprises a probe portion (50) which includes a measuring probe (2) that carries out measurements at one end part (23) which is positioned on a head (101) side of a subject, and a holding portion (32) which is mounted on the head of the subject and holds the probe portion. The holding portion is constructed so as to be disposed in a position that is separated from the head of the subject by holding another end part (50a) side which is opposite the one end part of the probe portion in a state where the one end part of the measuring probe protrudes toward the head of the subject.

Description

Brain function measuring device and probe holder for brain function measuring device

The present invention relates to a brain function measuring device and a probe holder for a brain function measuring device, and more particularly to a brain function measuring device and a probe holder for a brain function measuring device provided with a holding unit for holding a measuring probe.

Conventionally, a brain function measuring device having a holding unit for holding a measurement probe is known. Such a brain function measuring device is disclosed in, for example, Japanese Patent No. 4408878.

The brain function measuring device disclosed in the above-mentioned Japanese Patent No. 4408878 includes a holding portion made of a plastic plate to which a plurality of cylindrical mounting members are fixed, and a measurement probe is attached to these mounting members. Has been.

Such a brain function measuring device requires the tip of the measurement probe to be in contact with the surface of the subject's head (scalp), and the subject's hair interferes with the measurement. (Hair avoidance work) is required. For this reason, in Japanese Patent No. 4408878, before attaching the measurement probe to the mounting member, a hair avoiding operation is performed in advance through a hair avoiding hole formed in the opening or holding portion of the cylindrical mounting member. The hair avoidance work is performed by an assistant other than the subject (such as a doctor performing measurement) using a bar-shaped tool or the like.

Japanese Patent No. 4408878

However, in the brain function measuring device as disclosed in the above-mentioned Japanese Patent No. 4408878, the opening and holding of the mounting member are held in a state where the holding unit is in close contact with the head of the subject (a state of supporting the head of the subject). There is a problem that the hair avoidance work must be performed from a small gap such as a hair avoidance hole in the part, and the hair avoidance work is complicated and takes time. The above brain function measuring apparatus is premised on that hair avoidance work is performed by an assistant other than the subject, and there is a problem that it is difficult for the subject himself to avoid hair. In recent years, for example, at home rehabilitation, there is an increasing need to enable brain function measurement by the subject himself. Therefore, it is desired to facilitate the hair avoidance work so that the hair avoidance work can be performed.

The present invention has been made to solve the above-described problems, and one object of the present invention is to provide a brain function measuring device capable of facilitating hair avoidance work in brain function measurement, and It is providing the probe holder for brain function measuring devices.

In order to achieve the above object, a brain function measuring apparatus according to a first aspect of the present invention is attached to a probe unit including a measurement probe that performs measurement at one end located on the subject's head side, and the subject's head And a holding portion that holds the probe portion, and the holding portion projects from the one end portion of the measurement probe toward the head of the subject, and the other end portion opposite to the one end portion of the probe portion. By holding the side, it is configured to be disposed at a position separated from the head of the subject.

In the brain function measuring device according to the first aspect of the present invention, as described above, the other end opposite to the one end of the probe unit in a state where the one end of the measuring probe protrudes toward the head of the subject. By holding the part side, the holding part is configured to be arranged at a position separated from the subject's head, thereby attaching the holding part to the subject's head and one end of the probe part (measurement probe) The test subject head surface and the holding part are separated from each other by the length from the one end of the probe part to the holding position on the other end side in a state where the head is in contact with the test subject's head surface. Can do. Thereby, after making the one end part of a probe part contact a test subject's head surface, the hair avoidance operation | work can be performed in the space between a test subject's head surface and a holding | maintenance part. In this case, it is not necessary to do hair avoidance work from a small gap such as a hair avoidance hole, for example, you can insert your fingers or a stick-like tool in a wide space between the head surface and the holding part, so you can scrape your hair Hair avoidance work can be facilitated. As a result, the work avoidance time can be shortened, and a space is created between the subject's head surface and the holding part. Depending on the position of the measurement probe (measurement site), the subject himself can avoid the work. Can be done.

In the brain function measuring apparatus according to the first aspect, preferably, the holding unit is separated from the subject's head by a predetermined interval capable of separating the hair from between the holding unit and the subject's head. The other end portion side of the probe portion is held. If comprised in this way, in the state which attached the holding | maintenance part to the test subject's head and contacted the end part of the probe part with the test subject's head surface, between the test subject's head surface and the holding | maintenance part, hair It is possible to secure a space for a predetermined interval sufficient to perform the avoidance work (the work of dividing hair). Thereby, the hair avoidance work in the case of brain function measurement can be further facilitated.

In the brain function measuring apparatus according to the first aspect described above, preferably, the probe unit further includes a mounting unit that detachably holds the measurement probe, and the mounting unit protrudes from the holding unit toward the head side of the subject. The mounting portion is configured so that the end portion opposite to the side where the measurement probe is disposed is held by the holding portion. If comprised in this way, the space between a holding | maintenance part and a test subject's head can be ensured (expanded) by the mounting part to which a measurement probe is mounted | worn. As a result, even when using a conventional measurement probe without increasing the length between one end and the other end of the measurement probe, for example, to secure a space between the holding unit and the head of the subject. A space can be easily formed between the head surface and the holding portion.

In the brain function measuring apparatus according to the first aspect, preferably, the holding unit supports a base member that holds the other end side of the plurality of probe units, and supports the base member in a state of being separated from the head of the subject. Member. If comprised in this way, a plurality of probe parts can be collectively held by a base member, and this base member can be supported by a support member. For example, the other end side of a plurality of probe parts is individually held. As compared with the above, the holding structure of the probe part can be simplified.

In this case, preferably, the holding part is a connection member that connects the base member to the support member so as to be swingable, and a pressing member that presses the plurality of probe parts toward the head side of the subject via the base member. And further including. If comprised in this way, when there exists an imbalance in the contact state with respect to the test subject's head of each probe part hold | maintained at the base member, a base member can be inclined (swinged) with the pressing force of a pressing member. Therefore, the inclination of the base member with respect to the head surface can be automatically adjusted so that the individual probe portions are in contact with the head evenly. Thereby, also in the structure which hold | maintains a some probe part to a base member, the contact state of the one end part and head surface of each probe part (measurement probe) is securable.

In the configuration in which the holding portion includes the connection member and the pressing member, the connection member preferably includes a plate-like elastic member whose both ends are connected to the base member and the support member, respectively. If comprised in this way, a base member can be rock | fluctuated with respect to a supporting member by the bending and torsion of a plate-shaped elastic member. Thereby, the structure provided with the connection member which rockably connects the base member to the support member can be realized with a very simple structure.

In the configuration in which the holding portion includes the connection member and the pressing member, the connection member preferably has a joint portion that rotatably connects the support member and the base member. If comprised in this way, a base member can be rock | fluctuated with respect to a supporting member by rotation of a joint part. Thereby, the structure provided with the connection member which connects a base member with respect to a support member so that rocking | fluctuation is easily realizable. In addition, by providing one or a plurality of rotation shafts in the joint portion, a configuration that rotates only in a desired swing (rotation) direction and does not rotate in an undesired swing (rotation) direction is obtained. Therefore, it is possible to suppress misalignment in an undesired direction and easily align the base member (that is, the measurement probe) with the subject's head.

In the configuration in which the probe unit includes the mounting unit, preferably, the holding unit holds a plurality of probe units, and the mounting unit is individually provided for each measurement probe, and is spaced from adjacent mounting units. It arrange | positions at a holding | maintenance part so that it may space apart. If comprised in this way, in the probe part which protrudes in the head side from a holding | maintenance part, a space can be formed between adjacent mounting parts. Thereby, for example, compared with the case where a common (single) mounting part that holds a plurality of probe parts is provided without a gap between adjacent probe parts, between the head surface of the subject and the holding part More space for hair avoidance work can be ensured.

In the configuration in which the probe unit includes the mounting unit, preferably, the mounting unit is configured to hold the measurement probe so as to be movable in the direction of the other end, and the probe unit includes the measurement probe held by the mounting unit. It has a biasing member that biases toward the one end side. With this configuration, even when the contact position varies when one end of the measurement probe comes into contact with the head surface of the subject, the measurement probe is stroked in the direction of the other end to ensure that the end of the subject is It can be brought into contact with the head. That is, since the shape of the subject's head varies greatly between individuals, the measurement probe can be reliably brought into contact with the subject's head by displacing the measurement probe according to the position of contact with the head. Further, the contact state of the measurement probe can be maintained by the urging member even when the subject moves or the holding unit comes into contact with some obstacle.

In the brain function measuring apparatus according to the first aspect, preferably, the probe portion has a tapered shape toward one end portion on the head side of the subject. With this configuration, a space can be formed around one end of the measurement probe in the vicinity of the subject's head surface (near one end), so that more space is available for hair avoidance work. can do. In order to prevent the hair from interfering with the measurement, it is necessary to avoid the hair near the measurement position where one end of the measurement probe contacts. Can do.

In the brain function measuring apparatus according to the first aspect described above, preferably, the probe unit includes at least one of a measurement probe of an optical measurement probe that transmits or receives measurement light and an electroencephalogram measurement probe that includes an electrode unit. Including. With this configuration, when using an optical measurement probe, hair avoidance work is necessary because the hair blocks the measurement light, and even when using an electroencephalogram measurement probe, hair avoidance work is required to ensure that the electrodes are in contact. Therefore, the present invention capable of facilitating hair avoidance work is particularly effective when an optical measurement probe or an electroencephalogram measurement probe is used. Moreover, in electroencephalogram measurement, there is a case where a conductive gel is applied to the scalp (wet measurement), and such application work can be facilitated.

The probe holder for a brain function measuring device according to the second aspect of the present invention is attached to a mounting portion to which a measurement probe for measuring at one end located on the subject's head side is attached, and to the subject's head, A holding unit that holds the measurement probe attached to the mounting unit, and the holding unit projects one end of the measurement probe toward the head of the subject and one end of the measurement probe or the mounting unit. Is configured to be disposed at a position spaced from the subject's head by holding the opposite end side.

In the probe holder for a brain function measuring device according to the second aspect of the present invention, as described above, the one end of the measuring probe or the mounting portion is projected with the one end of the measuring probe protruding toward the head of the subject. By holding the other end side opposite to that of the measurement probe, the holding unit is configured to be disposed at a position separated from the subject's head, so that the holding unit is attached to the subject's head and With one end in contact with the subject's head surface, a space is formed by separating the subject's head surface from the holding portion by the length from one end of the measurement probe to the holding position on the other end. can do. Thereby, after making the one end part of a measurement probe contact a test subject's head surface, the hair avoidance operation | work can be performed in the space between a test subject's head surface and a holding | maintenance part. In this case, it is not necessary to do hair avoidance work from a small gap such as a hair avoidance hole, for example, you can insert your fingers or a stick-like tool in a wide space between the head surface and the holding part, so you can scrape your hair Hair avoidance work can be facilitated. As a result, the work avoidance time can be shortened, and a space is created between the subject's head surface and the holding part. Depending on the position of the measurement probe (measurement site), the subject himself can avoid the work. Can be done.

As described above, according to the present invention, it is possible to facilitate the work of avoiding hair when measuring brain function.

1 is a schematic diagram showing an overall configuration of an optical measurement device according to first to third embodiments of the present invention. FIG. 3 is a block diagram showing a configuration of an optical measurement device according to first to third embodiments of the present invention. It is the perspective view which showed the probe part of the optical measuring device by 1st Embodiment of this invention. It is a typical perspective view which shows the mounting state of the holder by 1st Embodiment of this invention. It is the typical perspective view which showed the holder by 1st Embodiment of this invention from back (back head side). It is the typical perspective view which showed the base member of the holder. It is the schematic diagram which showed the space | interval formed between the holding | maintenance part (base member) by 1st Embodiment of this invention, and a test subject's head. It is the schematic diagram which showed arrangement | positioning of the probe part in a base member. It is a typical perspective view which shows the mounting state of the holder by 2nd Embodiment of this invention. It is the typical perspective view which showed the holder by 2nd Embodiment of this invention from the lower surface side. It is the typical perspective view which showed the holder by 3rd Embodiment of this invention from back (back head side). It is a schematic diagram corresponding to FIG. 7 for demonstrating the probe part by 3rd Embodiment of this invention.

Hereinafter, embodiments will be described with reference to the drawings.

(First embodiment)
First, the overall configuration of the optical measurement apparatus 100 according to the first embodiment of the present invention will be described with reference to FIGS. In the first embodiment, an example in which the present invention is applied to an optical measurement device that performs measurement of brain function by irradiating a subject (subject) with measurement light will be described as an example of a brain function measurement device. The optical measuring device 100 is an example of the “brain function measuring device” of the present invention.

The optical measurement device 100 includes a main body 1, a plurality of measurement probes 2 (light transmission probes TP and light reception probes RP) connected to the main body 1, and measurement probes 2 at predetermined positions on the surface of the head 101. And a holder 3 for disposing the device. The measurement probe 2 is an optical measurement probe that transmits or receives measurement light. The measurement probe 2 is an example of the “optical measurement probe” in the present invention. The holder 3 is an example of the “probe holder for brain function measuring device” of the present invention.

As shown in FIG. 2, the main body 1 detects a light output unit 11 that outputs measurement light to the measurement probe 2 (light transmission probe TP) and measurement light incident on the measurement probe 2 (light reception probe RP). And a light detection unit 12 that performs the operation. The light output unit 11 includes, for example, a semiconductor laser as a light source. The light detection unit 12 includes, for example, a photomultiplier tube as a detector. The main body unit 1 includes a measurement control unit 13 that performs operation control of the light output unit 11 and the light detection unit 12, and a main body control unit 14 that executes various programs to perform measurement operation control of the entire optical measurement device 100. It has. The main body 1 also houses a main memory 15 that stores various programs executed by the main body control unit 14 and measurement data obtained as a result of measurement. The optical measuring device 100 includes a display unit 16 and an operation input unit 17 connected to the main body unit 1. The total number of connectable probes is N + M, and the optical measuring apparatus 100 can connect a maximum of N light transmitting probes TP and a maximum of M light receiving probes RP. In the first embodiment, a total of eight measuring probes 2 (four for each of the light-transmitting probes TP and the light-receiving probes RP) are attached to one holder 3.

The plurality of measurement probes 2 are functionally composed of a light transmission probe TP and a light reception probe RP, but the light transmission probe TP and the light reception probe RP are the same in configuration. The optical measurement device 100 irradiates measurement light in the near-infrared light wavelength region from a light transmission probe TP disposed on the head surface of the subject (subject). Then, the measurement light intensity (the amount of received light) is obtained by making the measurement light reflected in the subject incident on the light receiving probe RP arranged on the head surface and detecting it.

Here, when the amount of hemoglobin in the brain increases at the activated site, reflecting brain activity, the amount of measurement light absorbed by hemoglobin increases. For this reason, it is possible to acquire a change in the amount of hemoglobin accompanying brain activity based on the acquired intensity of measurement light. Hemoglobin is divided into oxyhemoglobin bonded to oxygen and deoxyhemoglobin not bonded to oxygen, and the light absorption characteristics are different from each other. For this reason, measurement is performed using measurement light having a plurality of wavelengths (for example, three wavelengths of 780 nm, 805 nm, and 830 nm) in consideration of the difference in light absorption characteristics, and the intensity (light reception amount) of the obtained measurement light of each wavelength is obtained. Based on this, the amount of each hemoglobin and the total amount are calculated.

As a result, it is possible to non-invasively acquire a change in hemoglobin amount associated with brain activity, that is, a change in blood flow rate or an activated state of oxygen metabolism, based on the intensity (light reception amount) of measurement light incident on the light receiving probe RP. Is possible. The optical measuring device measures which brain region is active by measuring the brain region at a plurality of points (measurement channels) using a plurality of light transmitting probes TP and a plurality of light receiving probes RP. It is possible to acquire a two-dimensional distribution.

As shown in FIG. 3, the measurement probe 2 includes an optical fiber cable (hereinafter referred to as an optical fiber) 21 and a fiber head 22 that holds the optical fiber 21. The measurement probe 2 is configured to perform measurement at one end portion (tip portion) 23 located on the subject's head 101 side (see FIG. 4). That is, one end of the optical fiber 21 is exposed (not shown) at the one end 23 of the measurement probe 2, and the measurement light can be emitted or incident at the one end 23. The measurement probe 2 is an L-type that is bent at the tip (fiber head 22). The fiber head 22 is a cylindrical member made of resin (for example, POM) that holds the optical fiber 21 inside. The optical fiber 21 is bent inside the L-shaped fiber head 22, and a portion on the tip side from the fiber head 22 is bent about 90 degrees.

As shown in FIGS. 4 and 5, the measurement probe 2 is attached to a holder 3 for arranging the measurement probe 2 at a predetermined position on the surface of the head 101. The holder 3 is mounted on the subject's head 101 and a plurality of (eight) mounting portions 31 to which the measurement probe 2 that performs measurement at the one end portion 23 located on the subject's head 101 side is mounted. And a holding portion 32 that holds the measurement probe 2 attached to the head 31. In the first embodiment, the eight mounting parts 31 constitute eight probe parts 50 together with the measurement probes 2 by attaching the measurement probes 2 respectively. The holding portion 32 includes a support member 41, a fixing member 42, a pair of connection members 43, a pair of base members 44, and a pressing member 45. The eight probe parts 50 (eight mounting parts 31 and eight measuring probes 2 attached to each mounting part 31) are held by the pair of base members 44, respectively. The connection member 43 is an example of the “elastic member” in the present invention.

プローブ Probe placement in brain function measurement is often set according to the international 10-20 method. In the international 10-20 method, the probe position is determined based on the front and rear reference lines connecting the nasal root and the occipital nodule and the left and right reference lines connecting the left and right outer ear canals (or the preauricular point). In accordance with the international 10-20 method, the holding unit 32 is provided with a left center portion (C3) and a right center portion (20% of the left and right reference lines) left and right along the left and right reference lines from the top (Cz) It is arranged so that the measurement position of the measurement probe 2 matches the position of C4). And in 1st Embodiment, the holding | maintenance part 32 (base member 44) is one end of the probe part 50 in the state which made the one end part 23 of the measurement probe 2 protrude toward the test subject's head 101 side in each measurement position. By holding the other end portion 50a side opposite to the portion 23, it is configured to be disposed at a position separated from the subject's head 101 (mounted while being lifted from the head 101). In the following description, the front-rear direction toward the forehead side (Y2 side) and the occipital side (Y1 side) with respect to the head to which the holder 3 is mounted is referred to as the Y direction, and the right side of the head (X2 side). The left-right direction toward the left head side (X1) is referred to as the X direction, and the up-down direction toward the top side (Z1 direction) and the neck side (Z2 direction) is referred to as the Z direction. Basically, it may be considered that the front and rear reference lines are along the Y direction and the left and right reference lines are along the X direction.

The support member 41 is a columnar member provided to extend in an arc shape from the back of the subject toward the top of the head. The support member 41 is connected (not shown) to the fixing member 42 at the lower end (back head side) portion. This fixing member 42 is a band-like member (elastic fiber such as flat rubber) having elasticity, and is formed in an annular shape extending from the back of the subject to the temporal and frontal (frontal) portions. The fixing member 42 is extended by the subject's head 101 when the holder 3 is mounted, and the head 3 (see FIG. 4) is tightened from the side (horizontal direction) as a reaction force thereof, so that the holder 3 is attached to the head 101. It is configured to be fixed. Accordingly, the support member 41 is supported by the fixing member 42. The upper end portion of the support member 41 is disposed above the top of the head (Cz), and a pair of connection members 43 are attached toward the left and right temporal regions (X direction). The support member 41 is configured to support the pair of base members 44 through the pair of connection members 43 while being separated from the head 101 of the subject.

The connecting member 43 is composed of a plate-like elastic member whose both ends are connected to the base member 44 and the support member 41, respectively. In the first embodiment, the connection member 43 is made of a rectangular (rectangular) resin thin plate material, such as PP (polypropylene). The connection member 43 is provided so as to extend from the upper end portion of the support member 41 to the temporal side (X direction) along the left-right reference line. As a result, the connecting member 43 can bend (elastically) deformed in the vertical direction (thickness direction) with respect to the left and right reference lines and can be twisted (elastically) deformed in the front and rear directions around the left and right reference lines. . On the other hand, the connection member 43 has a large width compared to the thickness so that the stretchability is small and the tensile deformation is difficult. Thereby, the connection member 43 hardly extends (or compresses) and deforms in a normal use state, and the connection member 43 serves as positioning (position holding) in the left-right direction (X direction) of the measurement position of the measurement probe 2. It has a function. The connection member 43 is fixed to the upper end portion of the support member 41 and the top end portion of the base member 44 by fastening using a screw member, respectively.

As shown in FIG. 6, the base member 44 is a resin member (for example, POM) integrally having four holes 44a (see FIG. 8) into which the probe unit 50 (mounting part 31) is inserted and insertion holes 44b. Etc.). As shown in FIG. 8, the four hole portions 44a are arranged in a rectangular shape (square shape) at equal intervals. A total of four measuring probes 2 (probe portions 50) are attached to these holes 44a, two each so that the light-transmitting probes TP and the light-receiving probes RP are adjacent to each other. Thus, a total of four measurement positions (measurement channels) are formed between the adjacent light transmission probe TP and light reception probe RP. Accordingly, four measurement channels on the left and right are formed in the vicinity of the left center (C3) and the right center (C4).

As shown in FIG. 7, the base member 44 holds the other end portions 50a of the four probe portions 50 inserted into the hole portions 44a. As a result, the holding unit 32 is separated from the subject's head 101 by a predetermined distance D that allows the hair to be separated from between the holding unit 32 and the subject's head 101, and the other end of the probe unit 50. It is comprised so that the part 50a side may be hold | maintained. Specifically, in a state where the holder 3 is mounted, the predetermined distance D between the base member 44 and the head 101 of the subject is the head from the lower surface (head side surface) of the base member 44 in the mounting portion 31. The protrusion length L1 of the portion protruding to the part 101 side and the protrusion length L2 of the measuring probe 2 from the tip of the mounting part 31 to the head 101 side to the one end part 23 that contacts the head surface Equal to the total. The protruding length of the probe unit 50 from the base member 44 is set so that the distance D is at least separated by the thickness dimension of a standard finger (for example, the average adult male second finger), for example. ing. However, as will be described later, since the probe unit 50 has an adjustment mechanism that strokes the one end 23 of the measurement probe 2 toward the other end 50a, the protruding length L2 is variable. Therefore, it is preferable that at least the protruding length L1 of the mounting portion 31 is not less than the size corresponding to the size necessary for scraping the hair from between the holding portion 32 and the head 101 of the subject.

As shown in FIG. 6, the insertion hole 44b is formed on the upper surface side (the side opposite to the head 101) of the base member 44, and penetrates the base member 44 in the extending direction of the left and right reference lines. As shown in FIG. 4, the pressing member 45 is inserted into the insertion hole 44b. Therefore, the base member 44 is attached to the support member 41 via the connection member 43 and is also attached to the pressing member 45.

The pressing member 45 is made of a band-like member having elasticity (for example, elastic fiber such as flat rubber), like the fixing member 42. The pressing member 45 extends from the upper side of the upper end of the support member 41 along the left-right reference line, passes through the insertion holes 44b of the pair of base members 44, and the fixing member 42 at the positions of the left and right side heads. It is fixed to the pair of locking portions 42a. Thereby, the pressing member 45 is extended by the head 101 when the holder 3 is mounted, and as a reaction force, the pressing member 45 has a function of pressing the plurality of probe parts 50 toward the subject's head 101 side via the base member 44. Have.

As shown in FIG. 8, the pressing member 45 is provided so as to press the base member 44 at a central position between the four probe portions 50 provided on the base member 44. More specifically, the pressing member 45 is provided in the base member 44 so as to press around the position of the square center of gravity G formed by the four probe portions 50. As a result, the holder 3 automatically adjusts the contact angles of the four probe parts 50 (measurement probes 2) of the respective base members 44 with respect to the head surface, so that one end 23 of each measurement probe 2 is placed on the head surface. It is comprised so that it may contact | adhere uniformly.

For example, in FIG. 8, it is assumed that only the two probe parts 50 (measurement probe 2) on the occipital side (Y1 side) are in contact with the head surface when the holder 3 is mounted, reflecting the head shape of the subject. In this case, the base member 44 rotates to the frontal side (Y2 side) with the two probe parts 50 on the occipital side (Y1 side) as fulcrums by the pressing force on the center of gravity G by the pressing member 45 (around the left and right reference lines). ) Occurs. For this reason, the base member 44 rotates while the connecting member 43 is torsionally deformed until the two probe parts 50 (measurement probe 2) on the frontal head side (Y2 side) come into contact with the head surface.

Similarly, when the head 101 of the subject is small, only the two probe parts 50 (measurement probe 2) on the top of the head (Z1 side) may contact the head surface when the holder 3 is mounted. . In this case, while the connecting member 43 is bent and deformed by the pressing force applied to the center of gravity G by the pressing member 45, the base member 44 is located on the temporal side (Z2 side) with the two probe portions 50 on the top side (Z1 side) as fulcrums. ) (Turns around the reference line). As a result, the two probe parts 50 (measurement probe 2) on the temporal side (Z2 side) come into contact with the head surface. In this manner, the angle of the base member 44 with respect to the head surface is automatically adjusted so as to ensure uniform contact with the head surface of each probe unit 50.

Next, the structure of the probe unit 50 will be described.

In the first embodiment, as shown in FIG. 3, the probe unit 50 includes a measurement probe 2, a mounting unit 31 that detachably holds the measurement probe 2, and an urging member 51, and is configured by these units. The measuring probe 2 has a contact position adjusting mechanism (stroke mechanism). The mounting portion 31 is configured to be detachable from the base member 44 (see FIG. 6). The mounting portion 31 is formed so as to protrude from the holding portion 32 (base member 44) toward the head 101 side of the subject, and is opposite to the side where the measurement probe 2 of the mounting portion 31 is disposed. The end side (upper end portion 31a side) is configured to be held by the holding portion 32 (base member 44). In the first embodiment, the upper end portion 31 a of the mounting portion 31 coincides with the other end portion 50 a of the entire probe portion 50.

The mounting portion 31 is a cylindrical member made of resin (for example, POM), and is configured to accommodate the measurement probe 2 and the biasing member 51 inside. The mounting portion 31 is provided for each measurement probe 2 and is disposed on the base member 44 so as to be spaced apart from each other with the adjacent mounting portion 31 (see FIGS. 7 and 8). The outer diameter of the mounting portion 31 is substantially the same as the inner diameter of the hole 44 a of the base member 44. The mounting portion 31 has a probe mounting hole 31b formed in the side surface portion, an opening (not shown) formed in the tip, and a screw hole 31c formed in the upper end surface. The probe attachment hole 31b is greatly opened in the side surface portion of the mounting portion 31 so that the L-shaped measurement probe 2 can be inserted. One end 23 of the measurement probe 2 inserted from the probe attachment hole 31b is inserted into the opening at the tip of the mounting portion 31, and the one end 23 projects (exposes) toward the tip (lower end). Therefore, the opening has a circular shape corresponding to the shape of the one end portion 23. The mounting portion 31 is configured to hold the measurement probe 2 so as to be movable (stroked) in the direction of the other end 50a (upper end 31a). The opening of the mounting portion 31 also functions as a guide for the measuring probe 2 to stroke in the axial direction (the central axis direction of the cylindrical mounting portion 31).

Further, as shown in FIG. 6, the screw hole 31 c on the upper end surface of the mounting part 31 is used to fix the mounting part 31 to a cover (not shown) with the mounting part 31 inserted into the hole 44 a of the base member 44. Is provided. The mounting portion 31 can be fixed to the base member 44 by fixing the cover (not shown) to the base member 44 with screws. An annular engagement groove 31d (see FIG. 3) formed over the entire circumference is also formed on the outer peripheral edge portion of the upper end portion of the mounting portion 31. In a state where the mounting portion 31 is inserted into the hole 44 a of the base member 44, a fixing tool (not shown) such as a clip or a C ring is engaged with the engaging groove 31 d so that the mounting portion 31 can be simply attached to the base member 44. It is also possible to fix to.

As shown in FIG. 3, the urging member 51 is formed of a compression coil spring, and is provided in the mounting portion 31 such that the lower end portion is in contact with the measurement probe 2 and the upper end portion is in contact with the inner upper surface of the mounting portion 31. ing. Accordingly, the biasing member 51 is configured to bias the measurement probe 2 held by the mounting portion 31 toward the one end portion 23 side. When the one end 23 is pressed against the subject's head 101 when the holder 3 is attached, the measurement probe 2 relatively moves toward the other end 50 a in the attachment 31 while compressing the biasing member 51. As a result, the probe unit 50 is configured so that the measuring probe 2 can be stroked in the axial direction in accordance with the shape of the head 101 of the subject, and the one end portion 23 by the urging force toward the one end portion 23 side of the urging member 51. It is comprised so that a contact state with the head surface may be maintained. For this reason, the protrusion length L2 of the above-described one end portion 23 is a length in a state where the urging force of the urging member 51 and the reaction force applied to the measurement probe 2 from the head 101 side are balanced.

Here, the one end portion 23 of the measurement probe 2 has a tapered shape whose outer diameter decreases toward the tip, and in the first embodiment, the probe portion 50 is one end portion 23 on the subject's head 101 side. It has a tapered shape toward That is, when the overall outer shape of the probe unit 50 is viewed, the outer diameter of the tip portion of the mounting portion 31 is gradually reduced, and the one end portion 23 of the measurement probe 2 protruding from the tip portion of the mounting portion 31 is Furthermore, it has a tapered shape. As a result, as shown in FIG. 7, the space between the adjacent probe portions 50 in the base member 44 increases as the head surface is approached (to the one end portion 23 side).

Next, attachment of the measurement probe 2, attachment of the holder 3, and hair avoidance work will be described.

In the first embodiment, the holder 3 is mounted on the subject's head 101 with the measurement probe 2 attached to the holder 3 in advance. Then, after the holder 3 is mounted, a hair avoidance operation is performed. Therefore, the holder 3 according to the first embodiment is different in mounting method from the conventional configuration in which the measurement probe is attached to the holder after performing the hair avoidance work after mounting the holder.

When the holder 3 is mounted, the measurement probe 2 is first attached to the holder 3. Specifically, the measurement probe 2 is inserted into the mounting portion 31 fixed to the base member 44, and the urging member 51 is attached so as to urge the measurement probe 2. Thereby, the probe part 50 hold | maintained at the holding | maintenance part 32 (base member 44) is comprised. Note that the probe unit 50 may be assembled before the mounting unit 31 is attached to the base member 44, and the assembled probe unit 50 may be fixed to the base member 44 (holding unit 32). By making the pair of base members 44 hold four probe parts 50 in total, four, the holder 3 is ready.

Next, the holder 3 is mounted on the head 101 of the subject. In the holder 3, the upper end of the support member 41 is arranged at the top of the head (Cz), and the positions of the front, rear, left and right are adjusted so that each base member 44 follows the left and right reference line (arranged on the temporal region), It is fixed to the subject's head 101 by the fixing member 42. At this time, when the base member 44 is pressed toward the head 101 by the pressing member 45, the angle of the base member 44 with respect to the head 101 of the subject is automatically adjusted while the connecting member 43 is bent and twisted.

As a result, a total of eight probe portions 50 (one end portion 23) of the pair of base members 44 are in contact with the head surface of the subject. With the holder 3 mounted on the subject's head 101 in this way, a space of a predetermined distance D (see FIG. 7) is provided between the subject's head 101 and the holding portion 32 (base member 44). Is formed. In addition, since the measurement probe 2 strokes within the probe unit 50 (mounting unit 31) according to the shape of the subject's head, the distance D between the head 101 and the base member 44 slightly differs depending on the position.

After that, work to avoid hair is performed. That is, by inserting a finger or a rod-shaped tool between the head 101 of the subject and the base member 44, the hair is scraped so that the one end 23 of the measurement probe 2 is surely in contact with the head surface (scalp). . In the first embodiment, the eight probe parts 50 are arranged within the reach of the hand in the vicinity of the left center part (C3) and the right center part (C4), so that the subject himself / herself can measure the head surface at the measurement position and the base member 44. It is sufficiently possible to avoid the hair by inserting a finger between them. Therefore, unlike the conventional configuration in which it is necessary to perform hair avoidance work and attachment work of the measurement probe 2 by an assistant other than the subject after attaching the holder, for example, at home, the subject himself or herself can attach the measurement probe 2 alone. The mounting of the holder 3 and the hair avoidance work can all be carried out. Thereby, in 1st Embodiment, a test subject himself / herself can implement to the brain function measurement by the optical measuring device 100 following mounting of the holder 3 alone.

In the first embodiment, the following effects can be obtained.

That is, in the first embodiment, as described above, the other end opposite to the one end 23 of the probe unit 50 in a state where the one end 23 of the measurement probe 2 protrudes toward the head 101 side of the subject. By holding the 50a side, the holding part 32 is configured to be arranged at a position separated from the subject's head 101, whereby the holding part 32 is attached to the head 101 and the probe part 50 (measurement probe 2). ) In a state where the one end portion 23 of the probe portion 50 is in contact with the head surface of the subject, the length of the probe portion 50 from the one end portion 23 to the holding position on the other end portion 50a side (L1 + L2 minutes) A space can be formed by separating the holding portion 32. Thereby, after making the one end part 23 (of the measurement probe 2) of the probe part 50 contact with a test subject's head surface, the hair avoidance work can be performed in the space between the head surface and the holding part 32. . In this case, the hair can be scraped by inserting a finger or a bar-like tool in a wide space between the head surface and the holding portion 32, so that the hair avoidance work can be facilitated. As a result, the work time for avoiding hair can be shortened. Moreover, since a space is created between the subject's head surface and the holding part 32, the position of the measurement probe 2 (as in the first embodiment in which the left center part (C3) and the right center part (C4) are measured) Depending on the measurement site, the subject himself can perform the hair avoidance work.

In the first embodiment, as described above, the probe is separated from the subject's head 101 by a predetermined distance D that allows the hair to be separated from between the holding portion 32 and the subject's head 101. The holding part 32 is configured to hold the other end part 50a side of the part 50. As a result, a space of a predetermined distance D sufficient to perform hair avoidance work (head hair scraping work) between the head surface and the holding part 32 with the holding part 32 attached to the head 101. Can be secured. Thereby, the hair avoidance work in the case of brain function measurement can be further facilitated.

Moreover, in 1st Embodiment, while providing the mounting part 31 so that it may protrude toward the head 101 side from the holding | maintenance part 32 as mentioned above, it is opposite to the side by which the measurement probe 2 of the mounting part 31 is arrange | positioned. The mounting portion 31 is configured so that the upper end portion 31 a side of the mounting portion is held by the holding portion 32. Thereby, the space between the holding unit 32 and the subject's head 101 can be secured (enlarged) by the mounting unit 31 to which the measurement probe 2 is mounted. As a result, even when the conventional measurement probe 2 is used, a space can be easily formed between the head surface and the holding portion 32.

In the first embodiment, as described above, the base member 44 that holds the other end 50a side of the plurality of probe units 50, and the support member that supports the base member 44 in a state of being separated from the head 101 of the subject. 41 is provided on the holding portion 32. As a result, the plurality of probe parts 50 can be collectively held by the base member 44, and the base member 44 can be supported by the support member 41. Therefore, the holding structure of the probe part 50 can be simplified.

In the first embodiment, as described above, the connection member 43 that swingably connects the base member 44 to the support member 41, and the plurality of probe units 50 are connected to the head of the subject via the base member 44. A holding member 32 is provided with a pressing member 45 that presses toward the 101 side. Thereby, when the contact state with respect to the head 101 of each probe part 50 hold | maintained at the base member 44 has imbalance, the base member 44 can be inclined (swinged) by the pressing force of the pressing member 45. Therefore, the inclination of the base member 44 with respect to the head surface can be automatically adjusted so that the individual probe parts 50 are in contact with the head 101 evenly. As a result, even in the configuration in which the plurality of probe parts 50 are held by the base member 44, the contact state between the one end part 23 of each probe part 50 (measurement probe 2) and the head surface can be ensured.

Further, in the first embodiment, as described above, the connection member 43 is constituted by a plate-like elastic member whose both ends are connected to the base member 44 and the support member 41, respectively. Accordingly, the base member 44 can be swung with respect to the support member 41 by bending or twisting the plate-like elastic member. Thereby, the structure provided with the connection member 43 which connects the base member 44 with respect to the support member 41 so that rocking | fluctuation is realizable by a very simple structure.

In the first embodiment, as described above, the plurality of mounting portions 31 are individually provided for each measurement probe 2, and each mounting portion 31 is separated from the adjacent mounting portion 31 with a space therebetween. Arranged in the holding part 32. Thereby, since a space can be formed between the adjacent mounting portions 31, it is possible to secure more space where hair can be avoided between the head surface of the subject and the holding portion 32. Can do.

In the first embodiment, as described above, the mounting portion 31 is configured to hold the measurement probe 2 movably in the direction of the other end portion 50a, and the measurement probe 2 held by the mounting portion 31 is A biasing member 51 that biases toward the one end portion 23 side is provided in the probe portion 50. Thereby, even when the contact position varies when the one end portion 23 of the measurement probe 2 comes into contact with the surface of the subject's head, the measurement probe 2 is stroked in the direction of the other end portion 50a to ensure that the one end portion 23 is placed on the subject. Can be brought into contact with the head. Further, the contact state of the measurement probe 2 can be maintained by the urging member 51 even when the subject moves or when the holding unit 32 comes into contact with some obstacle.

Further, in the first embodiment, as described above, the entire probe unit 50 is formed in a tapered shape toward the one end 23 on the head 101 side of the subject. Thereby, since a space can be formed around the one end portion 23 of the measurement probe 2 in the vicinity of the head surface of the subject (in the vicinity of the one end portion 23), more space is secured for performing the hair avoidance work. be able to. Further, in order to prevent the hair from interfering with the measurement, it is necessary to avoid the hair near the measurement position where the one end 23 of the measurement probe 2 contacts, so that the work for avoiding the hair near the measurement position is made easier. can do.

In the first embodiment, as described above, the optical measurement probe 2 that transmits or receives the measurement light is provided in the probe unit 50. When the optical measuring probe 2 is used, the hair avoiding work is required because the hair blocks the measuring light, and therefore the optical measuring device 100 according to the first embodiment that can facilitate the hair avoiding work is the optical measuring probe 100. This is particularly effective when 2 is used.

(Second Embodiment)
Next, the holder of the optical measuring device according to the second embodiment of the present invention will be described with reference to FIG. 1, FIG. 2, FIG. 4, FIG. In the second embodiment, unlike the first embodiment in which the support member and the base member are connected via a connection member made of a plate-like elastic member, the support member and the base member are connected via a connection member made of a joint. An example configured to connect the two will be described. In addition, in the optical measuring device of 2nd Embodiment, since structures other than a holder are the same as that of the said 1st Embodiment, description is abbreviate | omitted. Moreover, about a holder, the same code | symbol is attached | subjected about the structure similar to the said 1st Embodiment, and description is abbreviate | omitted.

As shown in FIGS. 9 and 10, the connection member 143 of the holder 103 (holding portion 132) of the optical measurement device 200 (see FIGS. 1 and 2) according to the second embodiment includes a support member 141 and a base member 144. It consists of a joint that is pivotably connected. The connection member 143 is an example of the “joint portion” in the present invention. The optical measuring device 200 is an example of the “brain function measuring device” in the present invention. The holder 103 is an example of the “probe holder for brain function measuring device” of the present invention.

Specifically, the connection member 143 is a resin (for example, POM) structure, is connected to the support member 141 via the first rotation shaft 161, and is connected via the second rotation shaft 162. A base member 144 is connected.

The first rotation shaft 161 is attached to a bearing portion 146 formed so as to protrude from the left and right (both sides in the X direction) at the upper end portion of the support member 141. Further, the support member 141 side end portion of the connection member 143 is rotatably supported by the support member 141 via the first rotation shaft 161. The first rotation shaft 161 is disposed along the Y direction (the direction in which the front / rear reference line extends). For this reason, the connection member 143 (and the base member 144) is supported so as to be rotatable in the vertical direction (Z direction) around the first rotation shaft 161 along the front-rear reference line. The first rotating shaft 161 has a function that enables an operation corresponding to bending (elastic) deformation in the vertical direction (thickness direction) of the connection member 43 (see FIG. 4) in the first embodiment.

The second rotation shaft 162 that connects the connection member 143 and the base member 144 extends along the X direction (the direction in which the left and right reference lines extend) so as to penetrate the connection portion between the connection member 143 and the base member 144. It is provided as follows. In addition, the stopper part 163 is provided in the both ends of the 2nd rotation axis | shaft 162, and it prevents that the connection part of the connection member 143 and the base member 144 falls out from the edge part of the 2nd rotation axis | shaft 162. . Accordingly, the base member 144 is supported by the connecting member 143 so as to be rotatable in the front-rear direction (Y direction) around the second rotation shaft 162 along the left-right reference line. The second rotating shaft 162 has a function that enables an operation corresponding to the torsional (elastic) deformation in the front-rear direction of the connection member 43 (see FIG. 4) in the first embodiment.

In addition, since the connection member 143 of the second embodiment is configured as a resin structure, there is no deformation in the pulling direction (the direction along the left-right reference line). For this reason, the connection member 143 has a function as positioning (position holding) in the left-right direction (X direction) of the measurement position of the measurement probe 2. Similarly, since the support member 141, the connection member 143, and the base member 144 are coupled via the corresponding first rotation shaft 161 and second rotation shaft 162, respectively, in the second embodiment, for example, in the front-rear direction ( There is no measurement position deviation other than rotation around two rotation axes, such as displacement in the Y direction). For this reason, in the connection member 143 of the second embodiment, it is possible to further improve the positioning (position holding) accuracy of the measurement position.

Other configurations of the second embodiment are the same as those of the first embodiment.

In the second embodiment, the following effects can be obtained.

In the second embodiment, as described above, the connection member 143 including the joint portion that rotatably connects the support member 141 and the base member 144 is provided. Accordingly, since the base member 144 can be swung with respect to the support member 141 by the rotation of the connection member 143 (joint portion), the connection member that connects the base member 144 with respect to the support member 141 in a swingable manner. The structure provided with 143 can be easily realized. Further, by providing the connection member 143 with a plurality (two) of the first rotation shaft 161 and the second rotation shaft 162, the connection member 143 rotates only in a desired swing (rotation) direction, and an undesired swing. A configuration that does not rotate in the (rotation) direction can be obtained. As a result, the base member 144 (that is, the measurement probe 2) can be easily aligned with the head 101 of the subject.

In the second embodiment as well, a wide space with a predetermined distance D (similar to FIG. 7) is formed between the head surface and the holding portion 32 (base member 144), and a finger or a bar-like tool is inserted into the hair. Since the hair can be separated, the hair avoidance work can be facilitated. As a result, the work time for avoiding hair can be shortened.

Other effects of the second embodiment are the same as those of the first embodiment.

(Third embodiment)
Next, with reference to FIG. 1, FIG. 2, FIG. 8, FIG. 11 and FIG. 12, an optical measuring device according to a third embodiment of the present invention will be described. In 3rd Embodiment, in addition to the structure of the said 1st Embodiment comprised so that the measurement probe which consists of an optical measurement probe might be attached to a base member, the structure which can attach the electroencephalogram measurement probe further provided with the electrode part to a base member An example will be described. In addition, about a holder, about the structure similar to the said 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

As shown in FIG. 11, the holder 232 of the holder 203 of the optical measurement apparatus 300 (see FIGS. 1 and 2) according to the third embodiment includes a probe unit 50 having the measurement probe 2 formed of an optical measurement probe, and an electroencephalogram measurement. The base member 244 which hold | maintains each probe part 250 which has the measurement probe 102 which consists of a probe is included. The measurement probe 102 is an example of the “electroencephalogram measurement probe” of the present invention. The optical measuring device 300 is an example of the “brain function measuring device” in the present invention. The holder 203 is an example of the “probe holder for brain function measuring device” of the present invention.

As shown in FIG. 12, the probe portion 250 is surrounded by the four probe portions 50 arranged in a square shape in the base member 244, so that the center position between the four probe portions 50 (the center of gravity G in FIG. Corresponding to the position). The probe unit 250 includes a measurement probe 102, a mounting part 231 to which the measurement probe 102 is attached, and an urging member 251. Similarly to the probe unit 50, the probe unit 250 has a contact position adjusting mechanism (stroke mechanism) of the measurement probe 102 constituted by these units.

The mounting portion 231 is a cylindrical member made of resin (for example, POM) configured to be detachable from the base member 244. Further, the mounting portion 231 is formed so as to protrude from the holding portion 232 (base member 244) toward the head 101 of the subject, and the upper end portion 233 of the mounting portion 231 is held by the base member 244. . The upper end portion 233 of the mounting portion 231 coincides with the other end portion 252 in the entire probe portion 250.

The measurement probe 102 is housed inside the mounting portion 231 with one end 223 projecting from the opening at the tip of the mounting portion 231 toward the head 101 side. One end 223 of the measurement probe 102 is an electrode unit for measuring an electroencephalogram, and is configured to be able to detect an electroencephalogram (electrical activity in the brain) by contacting the head surface. The one end 223 is an example of the “electrode part” in the present invention.

The urging member 251 is composed of a compression coil spring, and is configured to urge the measurement probe 102 held by the mounting portion 231 toward the one end portion 223 side. Accordingly, in the probe unit 250, the measurement probe 102 can be stroked to the other end 252 side according to the shape of the subject's head 101, and the one end portion of the biasing member 251, similarly to the probe unit 50. The contact state between the one end 223 and the head surface is maintained by the urging force toward the 223 side.

When the holder 203 is attached to the subject, the angle adjustment of the base member 244 with respect to the head surface is automatically performed so as to ensure the contact of the probe unit 50 and the probe unit 250 with the head surface. This is the same as in the first embodiment. After the holder 203 is mounted, a hair avoidance operation for bringing the one end 223 into contact with the head surface is also performed on the probe unit 250. Moreover, in electroencephalogram measurement, a conductive gel is applied to the scalp (wet measurement). In this case, after the hair avoidance operation, an application operation for applying the conductive gel to the measurement position (contact position with the one end 223 and the head surface) is also performed. In the third embodiment, since a wide space with a predetermined interval D is formed between the head surface and the holding portion 232 (base member 244), not only the hair avoiding operation but also the applying operation can be easily performed. It is possible.

With such a configuration, the optical measurement apparatus 300 (see FIG. 1) according to the third embodiment performs measurement including an electroencephalogram measurement probe in addition to brain function measurement (optical measurement) using the measurement probe 2 including the optical measurement probe. It is configured such that brain function measurement (electroencephalogram measurement) using the probe 102 can be performed simultaneously in parallel. In order to realize such a function, the optical measurement device 300 includes, in addition to the light output unit 11 and the light detection unit 12, an electroencephalogram detection unit (not shown) connected to the measurement probe 102 and performing signal detection. 301 (see FIG. 2). However, a well-known device configuration for performing electroencephalogram detection can be adopted, and a description thereof will be omitted. In addition to the configuration in which an electroencephalogram detection unit is provided in the main body 301 of the optical measuring device 300, for example, an external (external) electroencephalogram detection unit (not shown) and the main body 1 are connected to provide a brain function (electroencephalogram). ) A configuration for measuring may be adopted.

Other configurations of the third embodiment are the same as those of the first embodiment.

In the third embodiment, the following effects can be obtained.

In the third embodiment, as described above, the probe unit 50 including the measurement probe 2 for optical measurement that transmits or receives measurement light, and the probe unit 250 including the measurement probe 102 for electroencephalogram measurement including the electrode unit. And both. As a result, when using an optical measurement probe, it is necessary to avoid the hair because the hair blocks the measurement light, and even when using an electroencephalogram probe, it is necessary to avoid the hair in order to ensure contact with the electrodes. The optical measurement device 300 according to the third embodiment in which a wide space having a predetermined interval D is formed between the head surface and the holding portion 232 (base member 244) facilitates hair avoidance work associated with each measurement. be able to. Further, in the electroencephalogram measurement, the conductive gel application work can be facilitated.

Other effects of the third embodiment are the same as those of the first embodiment.

In addition, it should be thought that embodiment disclosed this time is an illustration and restrictive at no points. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

For example, in the first and second embodiments, an example of an optical measurement device provided with an optical measurement probe is shown as the brain function measurement device. In the third embodiment, in addition to the optical measurement probe, the brain function measurement device is shown. Although an example of an optical measurement apparatus that further includes an electroencephalogram measurement probe and can perform not only optical measurement but also electroencephalogram measurement has been shown, the present invention is not limited to this. In the present invention, an electroencephalograph having only an electroencephalogram measurement probe may be used as the brain function measuring device without providing the optical measurement probe.

In the first to third embodiments, an example in which four probe parts 50 (probe parts for optical measurement) are provided on the base member has been described. However, the present invention is not limited to this. In the present invention, the probe unit 50 attached to the base member may be two, three, six or more other than four. In order to increase the number of channels with respect to the number of probes, it is preferable to use an even number of light transmitting probes and light receiving probes. In the third embodiment, an example in which four optical measurement probe units 50 and one electroencephalogram measurement probe unit 250 are provided has been described. However, two or more electroencephalogram measurement probe units 250 are provided. It may be provided. The number of probe portions provided on the base member may be determined according to the range of the brain region to be measured.

In the first to third embodiments, the example in which the four probe parts 50 (probe parts for optical measurement) are arranged in a rectangular shape at equal intervals on the base member has been described. However, the present invention is not limited to this. Absent. In the present invention, the arrangement of the probe unit 50 attached to the base member may not be rectangular (square). However, in order to increase the number of channels with respect to the number of probes, it is preferable to arrange the light transmitting probes and the light receiving probes in a rectangular shape (lattice shape) at equal intervals so that they are alternately adjacent.

In the first to third embodiments, the holding unit is configured such that the pair of base members to which the probe unit is attached are arranged at the positions of the left center portion (C3) and the right center portion (C4) of the subject. However, the present invention is not limited to this. In the present invention, the base member (that is, the measurement probe) may be disposed at a position other than C3 and C4, and may be disposed at a position corresponding to the brain region to be measured.

In the first to third embodiments, the example in which the pair of (two) base members to which the probe unit is attached is provided in the holding unit is shown, but the present invention is not limited to this. In the present invention, only one base member may be provided, or three or more base members may be provided. Moreover, you may attach a probe part to a supporting member, for example, without providing a base member.

In the first to third embodiments, the example in which the holding portion (base member) holds the other end portion of the probe portion (that is, the upper end portion of the mounting portion) has been described. It is not limited to this. In the present invention, it is only necessary that the holding portion is configured to hold the other end portion side of the probe portion. In other words, the holding position of the probe part by the holding part only needs to be positioned at least on the side (the other end side) away from the subject's head, thereby separating the holding part and the subject's head. Can be formed. Therefore, for example, the holding portion may be configured to hold the position on the other end side near the center of the probe portion.

In the first to third embodiments, the example in which the probe portion configured by attaching the measurement probe to the mounting portion is held by the holding portion (base member) has been described. Not limited to. For example, you may comprise a holding | maintenance part (base member) so that the other end part side of measurement probe itself may be directly hold | maintained, without providing a mounting part. As described above, the probe unit may be composed of only the measurement probe.

In the first to third embodiments, the example in which the base member is connected to the support member via the connection member has been described. However, the present invention is not limited to this. For example, the base member may be directly attached to the support member.

Further, in the first to third embodiments, the example in which the pressing member is configured to press the base member around the position of the center of gravity G of the four probe portions 50 arranged in a rectangular shape on the base member is shown. However, the present invention is not limited to this. The pressing member preferably presses the position passing through the center of gravity G, but there is no problem even if the pressing position is slightly deviated from the center of gravity as long as it is a position between the probe portions 50. For example, when there are three probe parts 50, a leg part for balancing with the other probe parts is provided on the base member so that the number of contact points with respect to the head surface is four points in a rectangular shape, You may comprise so that the gravity center position of the four points may be pressed with a pressing member.

In the first to third embodiments, the mounting portion and the urging member are provided in the probe portion so that the measuring probe can be stroked to the other end side. However, the present invention is not limited thereto. Not limited. For example, the measurement probe may be fixed to the mounting portion.

100, 200, 300 Optical measurement device (brain function measurement device)
2 Measuring probe (optical measuring probe)
3, 103, 203 holder (probe holder for brain function measuring device)
23 One

end portion

50, 250 Probe portion 50a

Other end portion

32, 132, 232

Holding portion

31, 231 Mounting

portion

41, 141 Support member 43 Connecting member (elastic member)
44, 144, 244 Base member 45

Press member

51, 251 Energizing member 101 Head 102 Measurement probe (electroencephalogram measurement probe)
143 Support member (joint part)
223 One end (electrode part)
252 other end D predetermined interval

Claims

A probe unit including a measurement probe that performs measurement at one end located on the head side of the subject; and
A holding part that is mounted on the head of the subject and holds the probe part;
The holding portion holds the other end side opposite to the one end portion of the probe portion in a state where the one end portion of the measurement probe protrudes toward the head side of the subject. A brain function measuring device configured to be arranged at a position separated from the head.
The holding part holds the other end part side of the probe part in a state of being separated from the subject's head by a predetermined interval capable of separating hair from between the holding part and the subject's head. The brain function measuring device according to claim 1, configured as described above.
The probe unit further includes a mounting unit that detachably holds the measurement probe;
The mounting portion is formed so as to protrude from the holding portion toward the subject's head, and the end portion side of the mounting portion opposite to the side where the measurement probe is disposed is held by the holding portion. The brain function measuring device according to claim 1, which is configured as described above.
The said holding | maintenance part contains the base member holding the said other end part side of the said some probe part, and the supporting member which supports the said base member in the state spaced apart from the test subject's head. Brain function measuring device.
The holding portion includes a connecting member that swingably connects the base member to the support member, and a pressing member that presses the plurality of probe portions toward the head of the subject via the base member. The brain function measuring device according to claim 4, further comprising:
The brain function measuring device according to claim 5, wherein the connecting member has a plate-like elastic member whose both ends are connected to the base member and the support member, respectively.
6. The brain function measuring device according to claim 5, wherein the connection member has a joint portion that rotatably connects the support member and the base member.
The holding unit holds a plurality of the probe units,
4. The brain function measurement according to claim 3, wherein the mounting unit is individually provided for each of the measurement probes, and is disposed in the holding unit so as to be spaced apart from the adjacent mounting unit. 5. apparatus.
The mounting portion is configured to hold the measurement probe movably in the other end side direction,
The brain function measuring apparatus according to claim 3, wherein the probe unit includes a biasing member that biases the measurement probe held by the mounting unit toward the one end.
2. The brain function measuring device according to claim 1, wherein the probe portion has a tapered shape toward the one end portion on the subject's head side.
The brain function measuring apparatus according to claim 1, wherein the probe unit includes at least one of the measurement probe of an optical measurement probe that transmits or receives measurement light and an electroencephalogram measurement probe including an electrode unit.
A mounting part to which a measurement probe for measuring at one end located on the head side of the subject is attached;
A holding unit that is mounted on the head of the subject and holds the measurement probe attached to the mounting unit;
The holding part holds the other end side opposite to the one end part of the measuring probe or the mounting part in a state where the one end part of the measuring probe protrudes toward the head side of the subject. Thus, the probe holder for a brain function measuring device configured to be disposed at a position separated from the head of the subject.