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JP-2026075447-A - Electroencephalogram (EEG) measuring device

JP2026075447AJP 2026075447 AJP2026075447 AJP 2026075447AJP-2026075447-A

Abstract

[Problem] To provide an electroencephalogram (EEG) measuring device that can adjust the orientation of the EEG electrodes. [Solution] The electroencephalogram measuring device 10 includes a support body 110 attached to the head 20 and an electrode unit 101 held by the support body 110. The support body 110 has through holes (elastic member recess 131, elastic material through hole 135) in which at least a part of the electrode unit 101 is positioned. The electrode unit 101 includes an electrode body (electron wave electrode member 120) that contacts the scalp 22, an electrode support member (holding part 180) that supports the electrode body (electron wave electrode member 120) and is attached to the through holes (elastic member recess 131, elastic material through hole 135), and a first electrode position adjustment member (adjustment member 200) attached to the electrode support member (holding part 180), at least at its end being able to pass through the through holes (elastic member recess 131, elastic material through hole 135) and be positioned outside the outer material (covering member 112) of the support body 100, and is deformable. [Selection Diagram] Figure 1

Inventors

  • 中村 健太郎
  • 千葉 怜
  • 浮城 一司
  • 中里 信和
  • 神 一敬
  • 石田 誠

Assignees

  • 住友ベークライト株式会社
  • 国立大学法人東北大学

Dates

Publication Date
20260508
Application Date
20241022

Claims (5)

  1. A support that is attached to the head, An electrode unit held in the support, It has, The support has a through hole in which at least a portion of the electrode unit is disposed, The electrode unit is The electrode body that comes into contact with the scalp, An electrode support member that supports the electrode body and is attached to the through hole, A first electrode positioning member is attached to the electrode support member or the electrode body, and at least one end of the member is capable of passing through the through hole and being located outside the outer material of the support; An electroencephalogram (EEG) measuring device.
  2. The electroencephalogram (EEG) measuring device according to claim 1, comprising a plurality of the first members attached to different locations on the electrode support member.
  3. The electroencephalogram (EEG) measuring device according to claim 1 or 2, further comprising an elastically deformable second member provided on the head-side surface of the support and pressing against the edge of the upper surface of the electrode support member.
  4. The electroencephalogram (EEG) measuring device according to claim 1 or 2, wherein the first member is deformable.
  5. The electroencephalogram measuring device according to claim 4, wherein the first member is a string.

Description

This invention relates to an electroencephalogram (EEG) measurement device. In electroencephalography (EEG), electrodes are placed in contact with the head to perform electrical measurements. Patent Document 1 describes measuring electroencephalograms by bringing the tip of an electrode pin supported by an elastic member into contact with the scalp. Japanese Patent Publication No. 2020-000268 This figure illustrates a partial cross-section of an electroencephalogram (EEG) measuring device according to an embodiment.This is a perspective view illustrating an electroencephalogram (EEG) measuring device according to an embodiment.This figure illustrates a support according to the embodiment being attached to a person's head.This figure illustrates the internal state of the support according to the embodiment.This figure illustrates the cross-sectional structure of the holding portion according to the embodiment.This figure illustrates the cross-sectional structure of the retaining member according to the embodiment.This figure illustrates the structure of the side of the electroencephalogram electrode member that faces the head according to the embodiment.This is a side view of the electroencephalogram electrode member according to the embodiment.This is a cross-sectional view taken along line A-A in Figure 7 according to the embodiment.This is a block diagram showing the schematic configuration of the signal processing unit according to the embodiment.This is a block diagram showing a computer that implements a signal processing unit in an embodiment.This diagram shows the electrode unit in an oblique mounting position according to the embodiment.This figure shows the electrode unit in a state where it has been lifted using the adjustment member according to the embodiment.This figure shows the state in which the electrode unit is being adjusted with a finger according to the embodiment.This figure shows the state in which the liquid according to the embodiment is being supplied to the scalp. The embodiments of the present invention will be described below with reference to the drawings. In all drawings, similar components are denoted by the same reference numerals, and their descriptions are omitted where appropriate. <Overview> Figure 1 is a diagram illustrating a partial cross-section of the electroencephalogram (EEG) measuring device 10 according to an embodiment. Figures 2 to 4 are diagrams showing the overall view of the EEG measuring device 10. Figure 2 is a perspective view of the EEG measuring device 10 from above. Figure 3 is a front view of the EEG measuring device 10 when it is attached to the head. Figure 4 is a diagram illustrating the state of the inside of the support 110 (the side into which the head 20 is inserted) of the EEG measuring device 10. The electroencephalogram (EEG) measuring device 10 comprises a support 110, an elastic member 130, and an electrode unit 101. The electrode unit 101 includes an EEG electrode member 120, which is the electrode body, and a holding portion 180 for attaching the EEG electrode member 120 to the elastic member 130. The EEG electrode member 120 is attached to the elastic member 130 via the holding portion 180 and held by the support 110. Electroencephalograms are measured by bringing the EEG electrode member 120 of the EEG measuring device 10 into contact with the head 20 (scalp 22). As will be described in detail later, the support 110 is, for example, a helmet-type device worn on the head 20, and has a support through-hole 114 that penetrates from the inside to the outside, and an elastic member 130 embedded in the support through-hole 114. The electroencephalogram electrode member 120 is held on the bottom surface 132 of the elastic member 130 via a holding portion 180. The elastic member 130 is provided with an elastic member recess 131 that extends from the surface to the bottom. The elastic member recess 131 communicates with the support through-hole 114. By inserting a finger or the like into the elastic member recess 131 through the support through-hole 114, the elastic member 130 can be manipulated, or the holding portion 180 (holding portion recess 188) attached to the elastic member 130 can be manipulated to adjust the orientation of the electrode unit 101 (i.e., the electroencephalogram electrode member 120). The electroencephalogram (EEG) electrode member 120 is provided with an electrode through-hole 121 that penetrates from the support 110 towards the head 20. The support through-hole 114, the elastic member recess 131, and the electrode through-hole 121 are in communication. A tube 151 is inserted into the electrode through-hole 121, and a liquid 30 (see Figure 15) is supplied to improve electrical contact between the scalp 22 and the EEG electrode member 120. In the examples shown in Figures 2 to 4, the support 110 is helmet-shaped. When the support 110 is helmet-shaped, it has a recess for inserting the head 20. The electroencephalogram