WO2022059291A1 - 光計測ユニットおよびプローブユニットホルダ - Google Patents

光計測ユニットおよびプローブユニットホルダ Download PDF

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Publication number
WO2022059291A1
WO2022059291A1 PCT/JP2021/024810 JP2021024810W WO2022059291A1 WO 2022059291 A1 WO2022059291 A1 WO 2022059291A1 JP 2021024810 W JP2021024810 W JP 2021024810W WO 2022059291 A1 WO2022059291 A1 WO 2022059291A1
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WO
WIPO (PCT)
Prior art keywords
probe
probe unit
unit
subject
head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2021/024810
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English (en)
French (fr)
Japanese (ja)
Inventor
彩夏 堀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shimadzu Corp
Original Assignee
Shimadzu Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shimadzu Corp filed Critical Shimadzu Corp
Priority to CN202180050314.0A priority Critical patent/CN115916051B/zh
Priority to JP2022550359A priority patent/JP7367880B2/ja
Publication of WO2022059291A1 publication Critical patent/WO2022059291A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
    • A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using optical sensors, e.g. spectral photometrical oximeters

Definitions

  • the present invention relates to an optical measurement unit and a probe unit holder, and more particularly to an optical measurement unit and a probe unit holder provided with a probe unit holding portion for holding the probe unit.
  • an optical measurement unit and a probe unit holder having a probe unit holding portion for holding the probe unit are known.
  • Such an optical measurement unit and a probe unit holder are disclosed in, for example, Japanese Patent Application Laid-Open No. 2011-05504.
  • the measuring device of JP-A-2011-050504 includes a light source, a light transmitting probe, a probe holder, a probe socket, a light receiving probe, a light receiving element, a calculation processing unit, a storage unit, a display unit, and an input unit.
  • the measuring device disclosed in Japanese Patent Application Laid-Open No. 2011-05504 is configured to irradiate the head of a subject with light emitted from a light source by a light transmitting probe. Further, in the measuring device disclosed in Japanese Patent Application Laid-Open No. 2011-05504, the light transmitted to the subject's head is irradiated from the light transmitting probe, and the light reflected in the subject's brain is incident on the light receiving element via the light receiving probe. It is configured as follows.
  • the light transmitting probe and the light receiving probe disclosed in Japanese Patent Application Laid-Open No. 2011-05504 are detachably supported by a probe socket provided in the probe holder.
  • the probe socket has a hole provided in the probe holder and is configured to detachably support the light transmitting probe and the light receiving probe.
  • the light transmitting probe and the light receiving probe are supported in a state of being inserted into the hole of the probe socket.
  • the tip of the probe When attached to the head of the subject, the tip of the probe may float from the scalp of the subject depending on the shape of the surface of the head of the subject, and the tip of the probe and the scalp of the subject may not be in close contact with each other. If the tip of the probe and the scalp are not in close contact with each other, there will be inconveniences such as the measurement light emitted from the light transmitting probe and passing through the subject's head will not be incident on the light receiving probe, making accurate measurement difficult. There is a problem.
  • the present invention has been made to solve the above-mentioned problems, and one object of the present invention is to make accurate measurement possible by bringing the tip of the probe into close contact with the head of the subject. It is to provide an optical measurement unit and a probe unit holder.
  • the optical measurement unit in the first aspect of the present invention includes a light transmitting probe that irradiates the surface of the head of the subject with measurement light, and the head of the subject via the inside of the head of the subject.
  • a probe unit including a light receiving probe that receives measurement light emitted from the surface, a probe unit holder that includes a probe unit pressing mechanism that holds the probe unit and presses the probe unit against the subject's head, and a probe unit holder.
  • the probe unit pressing mechanism is provided with the subject's head surface against the probe unit due to the restoring force of elastic deformation when the probe unit is pressed against the subject's head surface by the subject's head. It includes an elastically deformable arm portion that applies a pressing force in the direction of the above, and a probe unit holding portion that is connected to the arm portion and rotatably holds the probe unit around the axis of the rotation axis.
  • the probe unit holder in the second aspect of the present invention has a light transmitting probe that irradiates the surface of the head of the subject with measurement light, and the measurement light emitted from the surface of the head of the subject via the inside of the head of the subject.
  • a probe unit holder that holds a light-receiving probe that receives light and a probe unit that includes the probe unit, and is equipped with a probe unit pressing mechanism that holds the probe unit and presses the probe unit against the subject's head.
  • the mechanism applies a pressing force in the direction of the subject's head surface to the probe unit by the restoring force of elastic deformation when the probe unit is pressed by the subject's head to the opposite side of the subject's head surface. It includes an elastically deformable arm portion, and a probe unit holding portion that is connected to the arm portion and rotatably holds the probe unit around the axis of the rotation shaft.
  • the optical measurement unit in the first aspect is the elastically deformable arm portion that applies a pressing force in the direction of the head surface of the subject to the probe unit by the restoring force of the elastic deformation, and the arm.
  • a probe unit holding section which is connected to the section and holds the probe unit.
  • the restoring force due to the elastic deformation of the arm portion exerts a pressing force on the probe unit in the direction of the subject's head surface via the probe unit holding portion, so that the probe unit is applied to the subject's head surface.
  • accurate measurement can be performed by bringing the tip of the probe into close contact with the head surface of the subject.
  • the mounting angle of the probe unit can be adjusted according to the curvature of the head of each subject. As a result, the degree of adhesion between the probe and the head surface of the subject can be improved, so that the accuracy of measurement can be further improved.
  • the probe unit holder in the second aspect is an elastically deformable arm portion that applies a pressing force in the direction of the head surface of the subject to the probe unit by the restoring force of the elastic deformation.
  • a probe unit holding section which is connected to the arm section and holds the probe unit.
  • FIG. 3 is a cross-sectional view taken along the line 400-400 of FIG. It is a schematic diagram for demonstrating the procedure which the subject wears the optical measurement unit by one Embodiment.
  • the optical measuring device 100 irradiates the head surface 91 (see FIG. 3) of the subject 90 with the measurement light 7 (see FIG. 3), and passes through the inside of the head 90a to the head surface 91.
  • the measurement light 7 emitted from is detected.
  • the optical measuring device 100 is a device that measures a change in cerebral blood flow reflecting the brain activity of the subject 90 based on the intensity (light receiving amount) of the detected measured light 7.
  • the optical measuring device 100 includes an apparatus main body 1 and an optical measuring unit 2.
  • the apparatus main body 1 and the optical measurement unit 2 are connected by a cable 70.
  • the optical measurement unit 2 includes a probe unit 3 and a probe unit holder 4.
  • the probe unit holder 4 holds the probe unit 3 and is attached to the head 90a of the subject 90. That is, the probe unit 3 is held by the head 90a of the subject 90.
  • the apparatus main body 1 includes a main body control unit 10 and a main storage unit 11.
  • the main body control unit 10 executes various programs to control the entire device main body 1. Further, the main body control unit 10 controls the probe unit 3.
  • the main body control unit 10 is composed of a computer including a processor and a memory.
  • the main storage unit 11 is configured to store various programs executed by the main body control unit 10 and measurement data obtained as a result of measurement.
  • the main storage unit 11 is composed of a non-volatile memory such as a hard disk drive.
  • the optical measuring device 100 includes a display unit 12 and an operation input unit 13 connected to the device main body 1.
  • the display unit 12 is, for example, a liquid crystal display, and the operation input unit 13 includes an input device such as a keyboard and a mouse.
  • the probe unit 3 includes a light transmitting probe 30, a light receiving probe 31, a light output unit 32, and a light detection unit 33.
  • the probe unit 3 includes two light transmitting probes 30 and two light receiving probes 31.
  • the light transmission probe 30 is configured to irradiate the head surface 91 (see FIG. 3) of the subject 90 (see FIG. 1) with the measurement light 7 (see FIG. 3). Further, the light receiving probe 31 is configured to receive the measurement light 7 emitted from the head surface 91 of the subject 90 via the inside of the head 90a of the subject 90.
  • the light transmitting probe 30 and the light receiving probe 31 have the same structure.
  • the light transmitting probe 30 has one end connected to the light output unit 32 and the other end in contact with the head surface 91 of the subject 90. Further, the light receiving probe 31 has one end connected to the photodetector 33 and the other end in contact with the head surface 91 of the subject 90.
  • the light transmitting probe 30 and the light receiving probe 31 include, for example, a light guide.
  • the light guide is a member that transmits light from one end to the other end by internal reflection.
  • the light guide is formed of, for example, a glass material having a columnar shape.
  • the optical output unit 32 outputs the measurement light 7 to the light transmission probe 30.
  • the light output unit 32 includes, for example, a semiconductor laser as a light source.
  • the photodetection unit 33 detects the measurement light 7 incident on the light receiving probe 31.
  • the photodetector 33 includes, for example, a photomultiplier tube or a photodiode as a detector.
  • the probe unit holder 4 includes a probe unit pressing mechanism 40. Further, in the present embodiment, the probe unit holder 4 includes a pressing mechanism holding portion 41, a head covering member 42, and a head mounting portion 43.
  • the probe unit pressing mechanism 40 is configured to hold the probe unit 3 and press the probe unit 3 against the head 90a (see FIG. 1) of the subject 90 (see FIG. 1).
  • the details of the configuration of the probe unit pressing mechanism 40 and the details of the configuration in which the probe unit pressing mechanism 40 presses the probe unit 3 against the head 90a of the subject 90 will be described later.
  • the pressing mechanism holding portion 41 is configured to hold the probe unit pressing mechanism 40. The details of the configuration in which the pressing mechanism holding unit 41 holds the probe unit pressing mechanism 40 will be described later.
  • the head covering member 42 is configured to hold the pressing mechanism holding portion 41. The detailed configuration of the head covering member 42 will be described later.
  • the head mounting portion 43 is configured to be mounted on the head 90a of the subject 90.
  • the head mounting portion 43 is configured to fix the probe unit holder 4 to the head 90a of the subject 90 by being mounted on the head 90a of the subject 90.
  • the detailed configuration of the head mounting portion 43 will be described later.
  • the optical measurement unit 2 includes a probe unit control unit 5 that controls an optical output unit 32 and an optical detection unit 33.
  • the probe unit control unit 5 is composed of a computer including a processor and a memory. As shown in FIG. 2, the probe unit control unit 5 is connected to the optical output unit 32 by a cable 71a. Further, the probe unit control unit 5 is connected to the photodetector unit 33 by a cable 71b.
  • the probe unit control unit 5 is provided in the control unit accommodating unit 44 (see FIG. 11) provided in the head covering member 42. Further, the "probe unit control unit 5" is an example of the "control unit" in the claims.
  • the light output unit 32 irradiates the measurement light 7 in the wavelength region of near-infrared light from the light transmission probe 30 arranged on the head surface 91 of the subject 90. Then, the photodetection unit 33 detects the measurement light 7 incident from the light receiving probe 31 arranged on the head surface 91.
  • One measurement point (measurement channel 6) is configured by a region serving as a path for the measurement light 7 between one light transmitting probe 30 and one light receiving probe 31.
  • the wavelength region of near-infrared light is, for example, 700 nm or more and 900 nm or less.
  • the measurement light 7 can reach the brain region in the head 90a.
  • the direction toward the head surface 91 side (direction approaching the head 90a) with respect to the probe unit 3 held in the probe unit holder 4 (see FIG. 1) is defined as the X1 direction, and the head surface 91.
  • the direction toward the opposite side is the X2 direction. Both the X1 direction and the X2 direction are collectively referred to as the X direction.
  • the optical measuring device 100 performs measurement using the measuring light 7 having a plurality of wavelengths (for example, three wavelengths of 780 nm, 805 nm, and 830 nm) in consideration of the difference in the absorption characteristics.
  • the time variation of each hemoglobin amount and total amount is calculated based on the intensity (light receiving amount) of the measured light 7 of each wavelength obtained.
  • the optical measuring device 100 includes a plurality of light transmitting probes 30 and a plurality of light receiving probes 31.
  • the optical measuring device 100 By measuring the brain region at a plurality of points (plural measurement channels 6) using a plurality of light transmitting probes 30 and a plurality of light receiving probes 31, it is possible to measure which region of the brain is active and how it is two-dimensional. It is possible to get the distribution.
  • the optical measurement is started by, for example, an input operation via the operation input unit 13.
  • the main body control unit 10 that has received the input operation controls the probe unit control unit 5 to start measurement.
  • the probe unit control unit 5 controls the optical output unit 32 so that the probe unit control unit 5 sequentially outputs the measurement light 7 to each light transmission probe 30 at a predetermined cycle.
  • the probe unit control unit 5 detects the measurement light 7 from the light transmission probe 30 from which the measurement light 7 is output and the light receiving probe 31 constituting the measurement channel 6.
  • the detection unit 33 is controlled. Further, the probe unit control unit 5 transmits the detection signal detected by the photodetection unit 33 to the main body control unit 10.
  • the main body control unit 10 analyzes changes in the amount of hemoglobin associated with brain activity based on the detection signal, and controls the display unit 12 to display the measurement results.
  • the optical measurement is terminated, for example, after a predetermined measurement time has elapsed or when a predetermined task is executed.
  • the optical measurement is terminated when the main body control unit 10 that has received the input operation for ending the measurement controls the probe unit control unit 5 to end the measurement.
  • the probe unit pressing mechanism 40 includes an arm portion 40a and a probe unit holding portion 40b.
  • the arm portion 40a is fixed to the pressing mechanism holding portion 41. Further, the arm portion 40a is connected to the probe unit holding portion 40b.
  • the arm portion 40a is made of a resin material and is configured to be elastically deformable. The detailed configuration of the arm portion 40a will be described later.
  • the probe unit holding unit 40b is configured to hold the probe unit 3. Further, the probe unit holding portion 40b is connected to the arm portion 40a. Details of the configuration in which the probe unit holding unit 40b holds the probe unit 3 will be described later.
  • the head covering member 42 has a shape that covers the vicinity of the measurement site of the head 90a of the subject 90.
  • the head covering member 42 has a shape that totally covers the head 90a of the subject 90.
  • the head covering member 42 has a so-called helmet-shaped shape.
  • the head covering member 42 is made of a resin material and has a light-shielding property.
  • the vicinity of the measurement site means to include both the position of the measurement site itself and the vicinity of the measurement site.
  • the arm portion 40a and the probe unit holding portion 40b also have a light-shielding property.
  • a brim portion 42a is provided in front of the head covering member 42. Further, a control unit accommodating unit 44 (see FIG. 11) is provided behind the head covering member 42. As a result, when the subject 90 attaches the probe unit holder 4, the front-back direction of the probe unit holder 4 can be identified.
  • FIG. 4 shows an example in which the optical measurement unit 2 includes four probe units 3 and four probe unit pressing mechanisms 40 so that four measurement sites can be measured. Further, in the example shown in FIG. 4, the measurement site is set to, for example, the positions of F3, F4, P3, and P4 in the international 10-20 method. Since each probe unit pressing mechanism 40 has the same configuration, one probe unit pressing mechanism 40 will be described below.
  • FIG. 5 is a cross-sectional view of a connection surface 40c between the arm portion 40a and the probe unit holding portion 40b.
  • the arm portion 40a has a columnar shape.
  • the arm portion 40a has an end portion 140 on one side and an end portion 141 on the other side.
  • a recess 40d is provided on the inner surface side of the arm portion 40a. Thereby, the mechanical strength of the arm portion 40a can be improved. Further, the recess 40d also serves as a path for passing the cable 71a and the cable 71b.
  • the arm portion 40a has a curved shape. Therefore, the arm portion 40a can be elastically deformed in the directions of the arrows 80a and 80b. Further, the elastic deformation in the direction of the arrow 81a and the arrow 81b has a smaller amount of deformation than the elastic deformation in the direction of the arrow 80a and the arrow 80b. In other words, the arm portion 40a is less likely to be elastically deformed in the directions of the arrows 81a and 81b. Further, the arm portion 40a is less likely to undergo twisting deformation around the axis 60 in the direction in which the arm portion 40a extends, as shown by the arrow 82. That is, in the present embodiment, the arm portion 40a is mainly configured to be elastically deformable in the directions of the arrows 80a and 80b.
  • the end portion 140 on one side of the arm portion 40a is connected to the probe unit holding portion 40b. Further, in the arm portion 40a, the end portion 141 on the other side is fixed to the pressing mechanism holding portion 41. That is, the arm portion 40a holds the probe unit 3 in a cantilever shape.
  • the other end portion 141 of the arm portion 40a is fixed to the pressing mechanism holding portion 41.
  • Any method may be used in which the arm portion 40a is fixed to the pressing mechanism holding portion 41.
  • the arm portion 40a is fixed to the pressing mechanism holding portion 41 by screwing. That is, in the present embodiment, the arm portion 40a is non-rotatably fixed to the pressing mechanism holding portion 41.
  • the arm portion 40a has a curved shape so as to project to the side opposite to the head surface 91 side of the subject 90.
  • the side opposite to the head surface 91 side of the subject 90 is a direction from the head surface 91 of the subject 90 toward the inner peripheral surface 42c of the head covering member 42.
  • the side opposite to the head surface 91 side of the subject 90 is the direction indicated by the arrow 80a. Therefore, in the example shown in FIG. 6, the arm portion 40a has a curved shape so as to project from the head surface 91 of the subject 90 toward the inner peripheral surface 42c.
  • the head covering member 42 is provided with an opening 42b.
  • the probe unit 3 is held by the probe unit pressing mechanism 40 in a state where the light transmitting probe 30 and the light receiving probe 31 are inserted through the opening 42b. Specifically, in the probe unit pressing mechanism 40, the tips of the light transmitting probe 30 and the light receiving probe 31 project toward the head surface 91 of the subject 90 from the inner peripheral surface 42c of the head covering member 42. The probe unit 3 is held so as to be. In the example of FIG. 6, in the probe unit pressing mechanism 40, the tips of the light transmitting probe 30 and the light receiving probe 31 are in a state of protruding from the inner peripheral surface 42c of the head covering member 42 in the direction indicated by the arrow 80b. As such, the probe unit 3 is held.
  • the subject 90 Since the tips of the light transmitting probe 30 and the light receiving probe 31 are fixed so as to project toward the head surface 91 of the subject 90 from the inner peripheral surface 42c of the head covering member 42, the subject 90 is the probe unit holder.
  • the probe unit 3 When the 4 is attached, the probe unit 3 is pressed by the head 90a of the subject 90 to the opposite side (direction indicated by the arrow 83) of the head surface 91 of the subject 90.
  • the probe unit 3 is formed by the head 90a of the subject 90 on the opposite side of the head surface 91 of the subject 90 (arrow 83).
  • the probe unit 3 is configured to apply a pressing force in the direction of the head surface 91 of the subject 90 (direction indicated by the arrow 80b) by the restoring force of the elastic deformation. ing.
  • the arm portion 40a bends in the direction indicated by the arrow 80a.
  • the restoring force of the elastic deformation of the arm portion 40a applies a force in the direction indicated by the arrow 80b from the arm portion 40a to the probe unit 3.
  • the pressing mechanism holding portion 41 is fixed to the crown side of the head covering member 42. Therefore, the other end portion 141 of the arm portion 40a is fixed to the crown side of the head covering member 42. Therefore, the probe unit 3 is held on the end side of the probe unit holder 4 opposite to the crown side of the head 90a of the subject 90, and the cantilever arm portion 40a is probed by the subject 90.
  • the unit holder 4 is attached, it is configured to be arranged on the crown side of the head 90a of the subject 90.
  • the arm portion 40a faces the direction along the meridian direction from the crown side of the head covering member 42, for example, when the head covering member 42 has a hemispherical shape. As described above, it is fixed to the pressing mechanism holding portion 41.
  • the probe unit holding portion 40b has an opening 40e.
  • the probe unit holding portion 40b has an annular shape.
  • the probe unit holding portion 40b is configured to hold the probe unit 3 inside the opening 40e.
  • the probe unit holding portion 40b is separable in the direction in which the probe unit 3 is inserted, and is configured to hold the probe unit 3 detachably.
  • the probe unit holding portion 40b is directed toward the head surface 91 side (direction approaching the head 90a) (X1 direction) and toward the side opposite to the head surface 91 (direction away from the head 90a). It is configured so that it can be divided in the direction toward which it is heading (X2 direction).
  • the probe unit holding portion 40b is configured to rotatably hold the probe unit 3 around the axis 60 of the rotating shaft 50 inside the opening 40e. .. Specifically, the probe unit holding portion 40b holds the probe unit 3 so that the extending direction of the rotation shaft 50 is orthogonal to the light transmitting probe 30 and the light receiving probe 31.
  • the direction in which the light transmitting probe 30 and the light receiving probe 31 extend is a direction along the central axis 62 (see FIG. 14) of the accommodating portion 34 (see FIG. 13) described later. Therefore, in the example shown in FIG. 8, the probe unit holding portion 40b holds the probe unit 3 so that the axis 60 of the rotating shaft 50 is in the direction orthogonal to the central axis 62.
  • the probe unit holding portion 40b that can be divided in the direction in which the probe unit 3 is inserted includes the first holding portion 142 connected to the arm portion 40a and the second holding portion 143.
  • the 1 holding portion 142 and the second holding portion 143 hold the probe unit 3 so as to sandwich the rotating shaft 50 in the direction (X direction) through which the probe unit 3 is inserted, so that the probe unit 3 is rotated around the axis 60 of the rotating shaft 50. It is configured to hold rotatably. That is, in the example shown in FIG. 8, the first holding portion 142 and the second holding portion 143 rotatably hold the probe unit 3 in the direction of the arrow 84.
  • the probe unit holding unit 40b includes a cable 71a for connecting the optical output unit 32 and the probe unit control unit 5, and a cable for connecting the optical detection unit 33 and the probe unit control unit 5. It has a passage portion 144 for passing 71b.
  • the probe unit holding portion 40b holds the probe unit 3 so that the extending direction of the rotation shaft 50 is orthogonal to the extending direction of the arm portion 40a. That is, in the present embodiment, the probe unit holding portion 40b has a direction in which the extension direction of the rotation shaft 50 is orthogonal to the extension direction of the arm portion 40a and a direction orthogonal to the light transmission probe 30 and the light receiving probe 31. As such, the probe unit 3 is held.
  • the arm portion 40a extends along the direction in which the axis 60 extends. Therefore, in the example shown in FIG. 10, the direction orthogonal to the extending direction of the arm portion 40a is the direction orthogonal to the axis 60.
  • the rotation shaft 50 is provided on the probe unit 3. Specifically, the rotation shaft 50 is provided in the accommodating portion 34 (see FIG. 13) described later. That is, the probe unit holding portion 40b is configured to rotatably hold the accommodating portion 34 around the axis 60 of the rotating shaft 50.
  • Control unit housing unit As shown in FIG. 11, a control unit accommodating unit 44 is provided behind the head covering member 42.
  • the control unit accommodating unit 44 accommodates the probe unit control unit 5.
  • the optical output unit 32 and the optical detection unit 33 of each probe unit 3 are connected to the probe unit control unit 5 via the cable 71a and the cable 71b, respectively.
  • the head mounting portion 43 includes a band 43a and an adjusting portion 43b.
  • the band 43a has an annular shape.
  • the band 43a is configured to surround the head 90a of the subject 90 in the circumferential direction from the forehead to the back of the head.
  • the adjusting unit 43b is configured so that the size of the band 43a in the circumferential direction can be adjusted.
  • the adjusting unit 43b includes, for example, a dial-type adjuster. After the light measurement unit 2 is attached, the subject 90 fixes the light measurement unit 2 to the head 90a by adjusting the size of the band 43a in the circumferential direction by the adjusting unit 43b. Further, the adjusting portion 43b is provided on the band 43a at a position behind the head covering member 42.
  • the head mounting portion 43 further includes a head mounting portion holding portion 43c.
  • the head-mounted portion holding portion 43c has a shape that surrounds the head 90a of the subject 90.
  • the head-mounted portion holding portion 43c has a gap through which the light transmitting probe 30 and the light receiving probe 31 provided in the probe unit 3 can be inserted.
  • the head mounting portion holding portion 43c is configured to connect the band 43a and the head covering member 42 at the positions shown by the circle 45a and the positions shown by the circle 45b.
  • the probe unit 3 includes an accommodating portion 34, a cover member 35, and a comb-shaped member 36 for scraping hair 92 (see FIG. 3) on the head surface 91.
  • the accommodating portion 34 is configured to accommodate the light transmitting probe 30 and the light receiving probe 31. Further, the accommodating portion 34 is provided with two grip portions 34a. The two gripping portions 34a are arranged at positions facing each other with respect to the central axis 62 (see FIG. 14) of the accommodating portion 34. Further, the accommodating portion 34 has a light-shielding property.
  • the cover member 35 is provided in the X2 direction of the accommodating portion 34. Further, the cover member 35 is provided so as to cover the light transmitting probe 30 and the light receiving probe 31 provided inside the accommodating portion 34 from the outside. Specifically, the cover member 35 has a tubular shape that is open only on the X1 direction side.
  • the cover member 35 is made of resin (for example, ABS resin). Further, the cover member 35 has a light-shielding property.
  • the comb-shaped member 36 includes a plurality of pin members 36a and a pin member holding portion 36b for holding the plurality of pin members 36a.
  • the pin member 36a is made of a resin material.
  • the pin member holding portion 36b is made of a resin material and is configured to be elastically deformable.
  • the plurality of pin members 36a are provided on the pin member holding portion 36b so as to project from the accommodating portion 34 toward the X1 direction side (head surface 91 side).
  • the pin member 36a is configured to scrape the hair 92 on the head surface 91.
  • the pin member 36a is made of an elongated rod-shaped (needle-shaped) resin material (for example, silicon rubber) suitable for scraping the hair 92.
  • the pin member 36a is provided so as to project from the lower surface (the surface on the X1 direction side) of the accommodating portion 34 toward the X1 direction.
  • the pin member holding portion 36b is fixed to the accommodating portion 34.
  • the tip 136 (end on the X1 direction side) of the pin member 36a has a rounded smooth surface such as a spherical surface.
  • the light transmitting probe 30 and the light receiving probe 31 are provided so as to project from the accommodating portion 34 toward the head surface 91 in the X1 direction, respectively.
  • an optical output unit 32 is provided above each light transmission probe 30.
  • a photodetector 33 is provided above each light receiving probe 31.
  • the probe unit 3 is rotated around the central axis 62 in a state of being arranged on the head surface 91 so that the hair 92 can be separated by the plurality of pin members 36a. It is configured in.
  • the subject 90 grips the grip portion 34a and rotates the probe unit 3 (accommodation portion 34) around the central axis 62 to separate the hair 92.
  • the accommodating portion 34 includes a probe holding portion 34c for holding the light transmitting probe 30 and the light receiving probe 31, an engaging member 34d, and a comb-shaped member holding portion 34e.
  • the probe unit 3 includes a spring member 37 that urges each of the light transmitting probe 30 and the light receiving probe 31 toward the X1 direction.
  • the engaging member 34d is configured to engage with the probe holding portion 34c (the end portion of the probe holding portion 34c on the X1 direction side).
  • the spring member 37 is provided so as to apply an urging force to the engaging member 34d from the X2 direction side. That is, each of the light transmitting probe 30 and the light receiving probe 31 receives the urging force from the spring member 37 via the engaging member 34d and the probe holding portion 34c.
  • the urging force of the spring member 37 transmits light in a state where each of the light transmitting probe 30 and the light receiving probe 31 can move toward the X1 direction by releasing the holding state in the probe holding portion 34c. It is applied to each of the probe 30 and the light receiving probe 31.
  • the holding state is a state in which the light transmitting probe 30 and the light receiving probe 31 are held in a state where they are not in close contact with the head surface 91 of the subject 90 by the probe holding portion 34c.
  • each of the light transmitting probe 30 and the light receiving probe 31 has a head in a state where the hair 92 is scraped off by the plurality of pin members 36a by releasing the holding state in the probe holding portion 34c. It is configured to be urged by the spring member 37 toward the surface 91. Specifically, first, the hair 92 is scraped off by the pin member 36a that is rotated as the accommodating portion 34 rotates. Then, by further rotating the accommodating portion 34, the holding state by the probe holding portion 34c is released, and the probe is moved toward the X1 direction by the urging force of the spring member 37 toward the head surface 91 where the hair 92 is scraped. Be urged.
  • the comb-shaped member holding portion 34e has a concave shape. Further, the outer peripheral portion of the pin member holding portion 36b is provided with a protruding portion 36c protruding outward in the normal direction of the pin member holding portion 36b.
  • the comb-shaped member 36 is held in the accommodating portion 34 by fitting the protruding portion 36c into the comb-shaped member holding portion 34e. That is, the comb-shaped member 36 is held by the probe unit 3 by fitting the protruding portion 36c to the comb-shaped member holding portion 34e.
  • the comb-shaped member 36 is configured to be elastically deformable.
  • the pin member holding portion 36b is configured to be elastically deformable on the inner peripheral surface side. Therefore, the comb-shaped member 36 can be removed from the probe unit 3 by elastically deforming the protrusion 36c toward the inner peripheral surface side by the operator to release the fit between the protruding portion 36c and the comb-shaped member holding portion 34e. .. That is, the comb-shaped member 36 is configured to be removable from the probe unit 3. Therefore, since the comb-shaped member 36 can be replaced for each subject 90, the inspection can be performed while maintaining good hygiene of the pin member 36a that directly touches the subject 90.
  • the subject 90 attaches the probe unit holder 4 to the head 90a.
  • the comb-shaped member 26 (pin member 36a) (see FIG. 14) provided in each probe unit 3 is brought into close contact with the head surface 91 (see FIG. 3).
  • the subject 90 adjusts the length of the band 43a by the adjusting unit 43b.
  • the probe unit holder 4 is fixed to the head 90a of the subject 90.
  • the probe unit 3 Since the probe unit holder 4 is fixed to the head 90a of the subject 90, the probe unit 3 continues to be subjected to the pressing force in the direction indicated by the arrow 83.
  • the arm portion 40a applies a pressing force in the direction indicated by the arrow 80b, and the probe unit 3 is brought into close contact with the head 90a of the subject 90.
  • the subject 90 adjusts the angle of the probe unit 3 by rotating the probe unit 3 in the direction of the arrow 85a or the arrow 85b.
  • the subject 90 can adjust the optimum angle of the probe unit 3 depending on the contact condition of the pin member 36a and the like.
  • the subject 90 scrapes the hair 92 by rotating the probe unit 3 around the central axis 62 as shown by the arrow 86. After the hair 92 has been scraped off, the subject 90 further rotates the probe unit 3 to bring the light transmitting probe 30 and the light receiving probe 31 into close contact with the head surface 91.
  • the probe unit 3 Since the probe unit 3 is provided for each measurement site, the probe unit 3 can be easily arranged at the measurement site by the subject 90 wearing the probe unit holder 4.
  • the probe unit pressing mechanism 40 holds the probe unit 3 so that the probe unit 3 can be rotated along the axis 61 of the rotation shaft 50 and the central axis 62, the subject.
  • the 90 can adjust the contact angles of the light transmitting probe 30 and the light receiving probe 31 with respect to the hair 92 and the head surface 91. Therefore, by mounting the optical measurement unit 2 according to the above procedure, the subject 90 transmits light while improving the reproducibility of the arrangement of the probe unit 3 even when the optical measurement unit 2 is mounted alone. Since it is possible to improve the degree of adhesion between the probe 30 and the light receiving probe 31 and the head surface 91, reproducible measurement can be performed with high accuracy.
  • the optical measurement unit 2 is a light transmitting probe 30 that irradiates the head surface 91 of the subject 90 with the measurement light 7, and the subject 90 passes through the inside of the head 90a of the subject 90.
  • a probe unit that holds a probe unit 3 including a light receiving probe 31 that receives measurement light 7 emitted from the head surface 91, and a probe unit 3 that presses the probe unit 3 against the head 90a of the subject 90.
  • a probe unit holder 4 including a pressing mechanism 40 is provided, and the probe unit pressing mechanism 40 is provided when the probe unit 3 is pressed by the head 90a of the subject 90 to the opposite side of the head surface 91 of the subject 90.
  • the elastically deformable arm portion 40a that applies a pressing force in the direction of the head surface 91 of the subject 90 to the probe unit 3 by the restoring force of the elastic deformation, and the probe unit 3 is rotated by being connected to the arm portion 40a.
  • a probe unit holding portion 40b that rotatably holds the moving shaft 50 around the axis 60.
  • the restoring force due to the elastic deformation of the arm portion 40a applies a pressing force to the probe unit 3 in the direction of the head surface 91 of the subject 90 via the probe unit holding portion 40b. It can be brought into close contact with the head surface 91 of the subject 90. As a result, accurate measurement can be performed by bringing the tip of the probe into close contact with the head surface 91 of the subject 90.
  • the mounting angle of the probe unit 3 can be adjusted according to the curvature of the head 90a for each subject 90. As a result, it is possible to improve the degree of adhesion between the probe and the head surface 91 of the subject 90, so that the accuracy of measurement can be further improved.
  • the probe unit holder 4 passes through the light transmitting probe 30 that irradiates the head surface 91 of the subject 90 with the measurement light 7 and the inside of the head 90a of the subject 90.
  • a probe unit holder that holds a probe unit 3 including a light receiving probe 31 that receives measurement light 7 emitted from the head surface 91 of the 90, and holds the probe unit 3 and is attached to the head 90a of the subject 90.
  • the probe unit pressing mechanism 40 for pressing the probe unit 3 is provided, and the probe unit pressing mechanism 40 is such that the probe unit 3 is pressed by the head 90a of the subject 90 to the opposite side of the head surface 91 of the subject 90.
  • the probe unit 3 is connected to the elastically deformable arm portion 40a and the arm portion 40a, which apply a pressing force in the direction of the head surface 91 of the subject 90 to the probe unit 3 by the restoring force of the elastic deformation.
  • a probe unit holding portion 40b that rotatably holds around the axis 60 of the rotating shaft 50.
  • the probe unit holder 4 capable of further improving the measurement accuracy as in the optical measurement unit 2 by holding the probe unit holding portion 40b so as to be able to rotate the probe unit 3. can.
  • the probe unit holder 4 further includes the pressing mechanism holding portion 41 for holding the probe unit pressing mechanism 40, and the arm portion 40a has the probe portion 140 on one side of the arm portion 40a. It is connected to the unit holding portion 40b, and the other end portion 141 is fixed to the pressing mechanism holding portion 41 to hold the probe unit 3 in a cantilever shape.
  • the configuration of the pressing mechanism holding portion 41 can be simplified as compared with the configuration of holding the probe unit 3 in a double-sided manner.
  • the pressing mechanism holding portion 41 and the probe unit 3 are relative to each other.
  • the position can be kept constant.
  • the reproducibility of the arrangement of the probe unit 3 can be improved.
  • the probe unit 3 is held on the end side of the probe unit holder 4 opposite to the crown side of the head 90a of the subject 90, and is cantilevered.
  • the arm portion 40a of the subject 90 is configured to be arranged on the crown side of the head 90a of the subject 90 when the subject 90 wears the probe unit holder 4.
  • the space for fixing the arm portion 40a in the probe unit holder 4 is increased as compared with the configuration in which the probe unit 3 is held on the crown side of the head 90a of the subject 90 in the probe unit holder 4.
  • the length of the arm portion 40a can be increased as compared with the configuration in which the probe unit 3 is held on the crown side of the head 90a of the subject 90.
  • the arm portion 40a has a curved shape so as to project to the side opposite to the head surface 91 side of the subject 90, and is rotated by the pressing mechanism holding portion 41. It is fixed to be immovable.
  • the arm portion 40a since the arm portion 40a has a curved shape so as to protrude to the side opposite to the head surface 91 side of the subject 90, the restoring force of the elastic deformation of the arm portion 40a is applied to the head surface of the subject 90. It can be easily applied in the direction toward 91. Further, by fixing the arm portion 40a to the pressing mechanism holding portion 41 so as not to rotate, the reproducibility of the arrangement of the probe unit 3 can be easily improved.
  • the probe unit holding portion 40b has an opening 40e, and inside the opening 40e, the probe unit 3 is rotatably held around the axis 60 of the rotating shaft 50. It is configured as follows. As a result, the probe unit 3 is rotatably held inside the opening 40e, so that the probe unit holding portion 40b can support both ends of the rotation shaft 50 of the probe unit 3. As a result, the probe unit 3 can be stably rotated as compared with the configuration in which only one end of the rotation shaft 50 of the probe unit 3 is supported.
  • the probe unit 3 includes the accommodating portion 34 accommodating the light transmitting probe 30 and the light receiving probe 31, and the probe unit holding portion 40b accommodates the accommodating portion 34 with the rotating shaft 50. It is configured to be rotatably held around the axis 60. As a result, the probe unit holding portion 40b rotatably holds the accommodating portion 34, so that the positions of the light transmitting probe 30 and the light receiving probe 31 can be adjusted collectively. As a result, the load on the operator can be reduced as compared with the configuration in which the positions of the light transmitting probe 30 and the light receiving probe 31 are adjusted individually.
  • the extending direction of the rotating shaft 50 is orthogonal to the extending direction of the arm portion 40a, and the light transmitting probe 30 and the light receiving probe 31 are used.
  • the probe unit 3 is held so that the directions are orthogonal to each other.
  • the direction in which the rotation axis of the probe unit 3 extends can be set to the tangential direction of the head surface 91 of the subject 90.
  • by rotating the probe unit 3 it is possible to adjust the extending direction of the light transmitting probe 30 and the light receiving probe 31 so as to be the normal direction of the head surface 91 of the subject 90.
  • the light transmitting probe 30 and the light receiving probe 31 can be brought into close contact with the head surface 91 of the subject 90.
  • the probe unit holding portion 40b can be divided in the direction in which the probe unit 3 is inserted, and is configured to hold the probe unit 3 detachably.
  • the probe unit holding portion 40b can be divided in the direction in which the probe unit 3 is inserted, so that the probe unit 3 can be easily attached / detached even when the probe unit holder 4 is attached to the head 90a of the subject 90. be able to.
  • the rotation shaft 50 is provided in the probe unit 3, and the probe unit holding portion 40b that can be divided in the direction in which the probe unit 3 is inserted is connected to the arm portion 40a.
  • the first holding portion 142 and the second holding portion 143 are included, and the first holding portion 142 and the second holding portion 143 are held so as to sandwich the rotation shaft 50 in the direction in which the probe unit 3 is inserted.
  • the probe unit 3 is configured to be rotatably held around the axis 60 of the rotating shaft 50. As a result, the probe unit 3 can be easily attached to and detached even in a configuration in which the inclinations of the light transmitting probe 30 and the light receiving probe 31 can be adjusted by rotating the probe unit 3 around the rotation shaft 50. As a result, the convenience of the user can be improved.
  • the probe unit 3 has an optical output unit 32 that outputs the measurement light 7 to the light transmission probe 30 and a photodetection unit 33 that detects the measurement light 7 incident on the light receiving probe 31. Further includes a probe unit control unit 5 (control unit) that controls the optical output unit 32 and the optical detection unit 33, and the probe unit holding unit 40b connects the optical output unit 32 and the probe unit control unit 5. It has a cable 71a to be connected and a passage portion 144 for passing the cable 71b connecting the light detection unit 33 and the probe unit control unit 5. As a result, the cable 71a and the cable 71b can be connected to the probe unit control unit 5 in a state of being passed through the passage unit 144. As a result, the cables 71a and 71b can be easily routed.
  • the probe unit holder 4 further includes the head covering member 42 that holds the pressing mechanism holding portion 41, and the head covering member 42 is the head 90a of the subject 90. It has a shape that covers the vicinity of the measurement site and also has a light-shielding property. As a result, the head covering member 42 can suppress the incident light from incident light on the measurement site on the head surface 91 of the subject 90. As a result, since the incident light is suppressed, it is possible to suppress the incident light from being incident on the light receiving probe 31, and the accuracy of measurement can be improved.
  • the probe unit holder 4 further includes a head mounting portion 43 mounted on the head 90a of the subject 90, and the head mounting portion 43 is a band 43a having an annular shape. And an adjusting portion 43b that can adjust the size of the band 43a in the circumferential direction.
  • the size of the band 43a can be adjusted according to the size of the head 90a of the subject 90 in the circumferential direction, so that the probe unit holder 4 is securely fixed to the head 90a of the subject 90. be able to.
  • a plurality of probe units 3 are provided for each measurement site of the head 90a of the subject 90, and a plurality of probe unit pressing mechanisms 40 are provided for each measurement site.
  • Each of the above is configured to hold one probe unit 3.
  • the probe unit 3 and the probe unit pressing mechanism 40 are provided for each measurement site, the tip of the probe can be brought into close contact with the head surface 91 of the subject 90 at each measurement site. As a result, even when a plurality of measurement sites are measured, accurate measurement can be performed at each measurement site.
  • the present invention is not limited to this. If the probe unit 3 can be pressed in the direction of the head surface 91 of the subject 90 by the restoring force of the elastic deformation, for example, the probe unit 3 is held in a double-sided manner by the two arm portions 40a. It may be.
  • the arm portion 40a may be arranged in the head circumference direction of the head 90a of the subject 90.
  • the arm portion 40a may be arranged in any way as long as the probe unit 3 can be pressed in the direction of the head surface 91 of the subject 90 by the restoring force of the elastic deformation.
  • the arm portion 40a may have a shape curved along the head 90a of the subject 90.
  • the shape of the arm portion 40a may be any shape as long as the probe unit 3 can be pressed in the direction of the head surface 91 of the subject 90 by the restoring force of the elastic deformation.
  • the probe unit holding portion 40b has an opening 40e
  • the present invention is not limited to this.
  • the probe unit holding portion 40b may not have an opening 40e.
  • the shape of the probe unit holding portion 40b may be any shape as long as the probe unit 3 can be pressed and held in the direction of the head surface 91 of the subject 90 by the restoring force due to the elastic deformation of the arm portion 40a. ..
  • the probe unit holding portion 40b is provided with a rotating shaft 50, and the probe unit holding portion 40b holds the probe unit 3 via the rotating shaft 50 so as to rotatably hold the probe unit 3. You may.
  • the present invention is not limited to this.
  • the first holding portion 142 and the second holding portion 143 may be integrally formed.
  • the probe unit holding portion 40b has the passage portion 144
  • the present invention is not limited to this.
  • the probe unit holding portion 40b may not have the passage portion 144.
  • the probe unit holding portion 40b does not have the passage portion 144, the cable 71a and the cable 71b are complicated to be routed. Therefore, it is preferable that the probe unit holding portion 40b has the passage portion 144.
  • the comb-shaped member 36 is configured to be detachably attached to the probe unit 3
  • the present invention is not limited to this.
  • the comb-shaped member 36 may be configured to be non-detachable with respect to the probe unit 3.
  • it is preferable that the comb-shaped member 36 is configured to be detachable from the probe unit 3.
  • the probe unit 3 includes two light output units 32 and two light detection units 33 is shown, but the present invention is not limited to this.
  • the probe unit 3 may be configured to include one light output unit 32 and one light detection unit 33.
  • the device main body 1 may be provided with a light output unit 32 and a light detection unit 33.
  • the optical output unit 32 and the optical detection unit 33 are provided in the apparatus main body 1, the light transmitting probe 30 and the light receiving probe 31 of each probe unit 3 are connected to the optical output unit 32 and the optical detection unit 33 by an optical fiber or the like. do it.
  • the optical measurement unit 2 may not include the probe unit control unit 5 and the control unit accommodating unit 44.
  • the present invention is not limited to this.
  • the apparatus main body 1 and the optical measurement unit 2 may be wirelessly connected.
  • the optical measuring device 100 includes the device main body 1
  • the present invention is not limited to this.
  • the optical measuring device 100 does not have to include the device main body 1.
  • the probe unit control unit 5 may perform processing and analysis of the obtained data.
  • the optical measurement unit 2 is separately connected to a PC (Personal Computer) or the like, or the probe unit control unit 5 records the data on the storage medium and reads the recording medium on the PC. You may do it on a PC by slacking off.
  • the probe unit control unit 5 may not be attached to the head covering member 42, but may be wearable to the subject 90.
  • the probe unit holding portion 40b has an opening 40e
  • the present invention is not limited to this.
  • the probe unit holding portion 40b may not have an opening 40e.
  • the probe unit holding portion 40b has an annular shape
  • the present invention is not limited to this.
  • the probe unit holding portion 40b does not have to have an annular shape.
  • the probe unit holding portion 40b may have a U-shape.
  • the probe unit holder 4 includes the pressing mechanism holding portion 41
  • the present invention is not limited to this.
  • the probe unit holder 4 may not include the pressing mechanism holding portion 41.
  • the arm portions 40a of each probe unit pressing mechanism 40 may be configured to be integrally formed with each other.
  • the probe unit pressing mechanism 40 (arm portion 40a) is held (fixed) by the pressing mechanism holding portion 41 is shown, but the present invention is not limited to this.
  • the probe unit pressing mechanism 40 may not be held by the pressing mechanism holding portion 41.
  • the probe unit pressing mechanism 40 may be configured to be held by the head covering member 42.
  • the probe unit holder 4 includes the head covering member 42
  • the present invention is not limited to this.
  • the probe unit holder 4 may not include the head covering member 42.
  • the pressing mechanism holding portion 41 may be held by a member other than the head covering member 42, such as the head mounting portion 43. If it is possible to hold the probe unit pressing mechanism 40, the pressing mechanism holding portion 41 may be held by the probe unit holder 4 in any way.
  • the head covering member 42 has a shape that totally covers the head 90a of the subject 90 is shown, but the present invention is not limited to this.
  • the head covering member 42 does not have to cover the head 90a of the subject 90 as a whole, such as having a headgear shape.
  • the head covering member 42 may have any shape as long as it can cover the vicinity of the measurement site of the head 90a of the subject 90.
  • the head mounting portion 43 includes the adjusting portion 43b
  • the present invention is not limited to this.
  • the head mounting portion 43 may not include the adjusting portion 43b.
  • the band 43a may be configured to have elasticity.
  • the band 43a may be configured to fix the head covering member 42 by hanging it on the chin of the subject 90.
  • the present invention is not limited to this.
  • the head covering member 42 does not have to have a light-shielding property.
  • the head covering member 42 does not have a light-shielding property, it may not be possible to accurately measure due to the influence of disturbance. Therefore, it is preferable that the head covering member 42 has a light-shielding property.
  • the probe unit 3 is arranged at the positions of F3, F4, P3, and P4 of the International 10-20 method as a measurement site.
  • the probe unit 3 may be arranged at the positions of F3 and F4 of the International 10-20 method as measurement sites.
  • the measurement site where the probe unit 3 is placed can be arbitrarily modified.
  • the probe unit 3 includes two light transmitting probes 30 and two light receiving probes 31 is shown, but the present invention is not limited to this.
  • the number of the light transmitting probe 30 and the light receiving probe 31 included in the probe unit 3 can be arbitrarily modified.
  • the optical measurement unit 2 includes four probe units 3
  • the present invention is not limited to this.
  • the number of probe units 3 included in the optical measurement unit 2 can be arbitrarily modified.
  • a probe unit including a light transmitting probe that irradiates a subject's head surface with measurement light and a light receiving probe that receives the measurement light emitted from the subject's head surface via the inside of the subject's head.
  • a probe unit holder including a probe unit pressing mechanism that holds the probe unit and presses the probe unit against the head of the subject is provided.
  • the probe unit pressing mechanism is When the probe unit is pressed by the subject's head to the opposite side of the subject's head surface, the restoring force of the elastic deformation causes the probe unit to be pressed against the subject's head surface in the direction of the head surface.
  • the elastically deformable arm part that gives An optical measurement unit including a probe unit holding portion connected to the arm portion and rotatably holding the probe unit around an axis of a rotation shaft.
  • the probe unit holder further includes a pressing mechanism holding portion for holding the probe unit pressing mechanism.
  • One end of the arm portion is connected to the probe unit holding portion, the other end portion is fixed to the pressing mechanism holding portion, and the probe unit is held in a cantilever shape.
  • the optical measurement unit according to item 1.
  • the probe unit is held on the end side of the probe unit holder opposite to the crown side of the subject's head.
  • Item 2 The optical measurement according to item 2, wherein the cantilevered arm portion is configured to be arranged on the crown side of the subject's head when the subject wears the probe unit holder. unit.
  • the arm portion has a curved shape so as to project to the side opposite to the head surface side of the subject, and is non-rotatably fixed to the pressing mechanism holding portion, item 2 or 3.
  • the probe unit includes an accommodating portion for accommodating the light transmitting probe and the light receiving probe.
  • Item 2 The optical measurement unit according to any one of items 2 to 5, wherein the probe unit holding portion is configured to rotatably hold the accommodating portion around the axis of the rotating shaft.
  • the probe unit holding portion has the probe unit so that the extending direction of the rotation axis is orthogonal to the extending direction of the arm portion and is orthogonal to the transmitting probe and the light receiving probe.
  • the optical measuring unit according to item 5 or 6, which is held.
  • (Item 8) Item 2. The light according to any one of items 5 to 7, wherein the probe unit holding portion is separable in a direction in which the probe unit is inserted and is configured to hold the probe unit detachably. Measurement unit.
  • the rotation shaft is provided on the probe unit and is provided on the probe unit.
  • the probe unit holding portion that can be divided in the direction in which the probe unit is inserted includes a first holding portion and a second holding portion connected to the arm portion. The first holding portion and the second holding portion can rotate the probe unit around the axis of the rotating shaft by holding the probe unit so as to sandwich the rotating shaft in the direction in which the probe unit is inserted.
  • Item 8 The optical measurement unit according to item 8, which is configured to hold in.
  • the probe unit further includes an optical output unit that outputs the measurement light to the light transmission probe and a photodetection unit that detects the measurement light incident on the light receiving probe. Further, a control unit for controlling the light output unit and the photodetection unit is provided. Item 9
  • the probe unit holding unit has a cable for connecting the optical output unit and the control unit, and a passage unit for passing a cable connecting the light detection unit and the control unit. Optical measurement unit described in.
  • the probe unit holder further includes a head covering member that holds the pressing mechanism holding portion.
  • Item 2 The optical measurement unit according to any one of Items 2 to 10, wherein the head covering member has a shape that covers the vicinity of the measurement site of the subject's head and has a light-shielding property.
  • the probe unit holder further includes a head-mounted portion that is mounted on the subject's head.
  • a plurality of the probe units are provided for each measurement site on the head of the subject.
  • Item 2. The item 1 to 12, wherein a plurality of probe unit pressing mechanisms are provided for each measurement site, and each of the measurement sites is configured to hold one probe unit.
  • a probe unit including a light transmitting probe that irradiates a subject's head surface with measurement light and a light receiving probe that receives the measurement light emitted from the subject's head surface via the inside of the subject's head. It is a probe unit holder that holds A probe unit pressing mechanism that holds the probe unit and presses the probe unit against the head of the subject is provided.
  • the probe unit pressing mechanism is When the probe unit is pressed by the subject's head to the opposite side of the subject's head surface, the restoring force of the elastic deformation causes the probe unit to be pressed against the subject's head surface in the direction of the head surface.
  • the elastically deformable arm part that gives A probe unit holder including a probe unit holding portion connected to the arm portion and rotatably holding the probe unit around an axis of a rotation shaft.
  • Probe unit 2 Optical measurement unit 3
  • Probe unit 4 Probe unit holder 5
  • Control unit (probe unit control unit) 7 Measurement light 30
  • Light transmission probe 31 Light receiving probe 32
  • Accommodation unit 40 Probe unit pressing mechanism 40a Arm unit 40b
  • Pushing mechanism holding part 42 Head covering member 43
  • Head mounting part 50 Rotating shaft 90 Subject 90a Head 91 Head surface 100
  • Optical measuring device 140 One side end 141 The other side end 142 First holding part 143 Second holding part 144 Passage part

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JP2009082265A (ja) * 2007-09-28 2009-04-23 Hitachi Ltd プローブ装置
JP2014161567A (ja) * 2013-02-26 2014-09-08 Hitachi Ltd 携帯型血液量測定装置
WO2015033440A1 (ja) * 2013-09-06 2015-03-12 株式会社島津製作所 脳機能計測装置および脳機能計測装置用プローブホルダ

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