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EP-4736766-A1 - ELECTROENCEPHALOGRAM MEASUREMENT DEVICE

EP4736766A1EP 4736766 A1EP4736766 A1EP 4736766A1EP-4736766-A1

Abstract

An electroencephalogram measurement device (10) includes a support (110), an elastic member (130), an electroencephalogram electrode member (120), and a holding member (140). The support (110) is mountable on a head. The elastic member (130) is elastically deformable, and a first through hole (131) is provided in the elastic member (130). The electroencephalogram electrode member (120) is held by the support (110) through the elastic member (130). The holding member (140) passes through the first through hole (131), in which one end (141) holds the electroencephalogram electrode member (120) and the other end (142) is exposed to an outside of the support (110).

Inventors

  • ISHIKAWA, EIJI

Assignees

  • Sumitomo Bakelite Co.Ltd.

Dates

Publication Date
20260506
Application Date
20240619

Claims (9)

  1. An electroencephalogram measurement apparatus comprising: a support which is mountable on a head; an elastic member which is elastically deformable and is provided with a first through hole; an electroencephalogram electrode member which is held by the support through the elastic member; and a holding member which passes through the first through hole, in which one end holds the electroencephalogram electrode member and an other end is exposed to an outside of the support.
  2. The electroencephalogram measurement apparatus according to Claim 1, wherein the holding member is attachable to and detachable from the electroencephalogram electrode member.
  3. The electroencephalogram measurement apparatus according to Claim 1 or 2, wherein an angle of the holding member with respect to the support is variable in a state in which the holding member holds the electroencephalogram electrode member.
  4. The electroencephalogram measurement apparatus according to any one of Claims 1 to 3, wherein the elastic member consists of an elastic material.
  5. The electroencephalogram measurement apparatus according to Claim 4, wherein the elastic member consists of one or more selected from a urethane sponge, a polyethylene sponge, a polypropylene sponge, and a silicone rubber sponge.
  6. The electroencephalogram measurement apparatus according to Claim 4, wherein a hardness of the elastic material, which is measured by a JIS K 6400-2·A method, is 30 N or more and 200 N or less.
  7. The electroencephalogram measurement apparatus according to any one of Claims 1 to 6, wherein an area of a surface of the elastic member that is to face the head is 3 cm 2 or more and 25 cm 2 or less.
  8. The electroencephalogram measurement apparatus according to any one of Claims 1 to 7, wherein a thickness of the elastic member in a direction perpendicular to a surface of the elastic member that is to face the head is 10 mm or more and 100 mm or less in a state in which the support is not mounted on the head.
  9. The electroencephalogram measurement apparatus according to any one of Claims 1 to 8, wherein the support includes a substrate which is located on a head side, in a state in which the support is attached to the head, and a covering member which is located on a side opposite to the head side, the holding member holds the electroencephalogram electrode member in a state of passing through a second through hole provided in the covering member and the first through hole, and a hole size of the second through hole is larger than a hole size of the first through hole.

Description

TECHNICAL FIELD The present invention relates to an electroencephalogram measurement device. BACKGROUND ART In electroencephalogram measurement, electrodes are placed on a head to conduct electrical measurements. Patent Document 1 discloses that a tip of an electrode pin supported by an elastic member is brought into contact with a scalp to measure the electroencephalogram. RELATED DOCUMENT PATENT DOCUMENT [Patent Document 1] Japanese Unexamined Patent Publication No. 2020-000268 SUMMARY OF THE INVENTION TECHNICAL PROBLEM However, hair may be interposed between the electroencephalogram electrode and the scalp, and it is necessary to comb the hair in order to ensure favorable contact between the electroencephalogram electrode and the scalp. In the structure disclosed in Patent Document 1, since the electroencephalogram electrode cannot be freely moved, the hair cannot be combed well. The present invention provides an electroencephalogram measurement device capable of stably bringing an electroencephalogram electrode into contact with a scalp. SOLUTION TO PROBLEM According to one aspect of the present invention, the following electroencephalogram measurement device is provided. 1. An electroencephalogram measurement device including: a support which is mountable on a head;an elastic member which is elastically deformable and is provided with a first through hole;an electroencephalogram electrode member which is held by the support through the elastic member; anda holding member which passes through the first through hole, in which one end holds the electroencephalogram electrode member and the other end is exposed to an outside of the support.2. The electroencephalogram measurement device according to 1., in which the holding member is attachable to and detachable from the electroencephalogram electrode member.3. The electroencephalogram measurement device according to 1. or 2., in which an angle of the holding member with respect to the support is variable in a state in which the holding member holds the electroencephalogram electrode member.4. The electroencephalogram measurement device according to any one of 1. to 3., in which the elastic member consists of an elastic material.5. The electroencephalogram measurement device according to 4., in which the elastic member consists of one or more selected from a urethane sponge, a polyethylene sponge, a polypropylene sponge, or a silicone rubber sponge.6. The electroencephalogram measurement device according to 4., in which a hardness of the elastic material, which is measured by a JIS K 6400-2·A method, is 30 N or more and 200 N or less.7. The electroencephalogram measurement device according to any one of 1. to 6., in which an area of a surface of the elastic member, facing the head, is 3 cm2 or more and 25 cm2 or less.8. The electroencephalogram measurement device according to any one of 1. to 7., in which a thickness of the elastic member in a direction perpendicular to a surface of the elastic member, facing the head, is 10 mm or more and 100 mm or less in a state in which the support is not mounted on the head.9. The electroencephalogram measurement device according to any one of 1. to 8., in which the support includes a substrate which is located on a head side, in a state of being attached to the head, and a covering member which is located on a side opposite to the head side,the holding member holds the electroencephalogram electrode member in a state of passing through a second through hole provided in the covering member and the first through hole, anda hole size of the second through hole is larger than a hole size of the first through hole. ADVANTAGEOUS EFFECTS OF INVENTION According to the present invention, it is possible to provide an electroencephalogram measurement device capable of stably bringing an electroencephalogram electrode into contact with a scalp. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a partial cross section of the electroencephalogram measurement device according to the embodiment.FIG. 2 is a perspective view showing the electroencephalogram measurement device according to the embodiment.FIG. 3 is a perspective view showing the electroencephalogram measurement device according to the embodiment.FIG. 4 is a view showing a state in which a support is mounted on a head of a person.FIG. 5 is a view showing an inside state of the support.FIG. 6 is a view showing a state in which the support is pressed against a scalp of the head.FIG. 7 is a view showing a way of moving a holding member.FIG. 8 is a view showing a state in which a tube is attached to the support.FIG. 9 is a cross-sectional view showing a state of an electroencephalogram electrode member during measurement and a periphery thereof.FIG. 10 is a view showing a partial cross section of the electroencephalogram measurement device in a state in which the holding member and the electroencephalogram electrode member are detached from the support.FIG. 11 is a v