PROBLEM TO BE SOLVED: To provide a brain wave electrode holding tool that can be easily attached and detached, and can arrange an electrode at a correct position of the head surface easily.SOLUTION: A brain wave electrode holding tool 1 includes a body part 2 arranged around the head part, a plurality of support parts 3 attached to the body part 2, and brain wave electrodes 4 provided on a tip side of at least some of the support parts 3, which are supported inside the body part. The body part 2 includes an opening in a size that allows fingers to be inserted for touching the brain wave electrodes. Each of the brain wave electrodes 4 includes a flexible part 6 whose base end side is supported by the support part 3, which has flexibility and is elastically deformed, and an electrode part 5 provided to the tip side of the flexible part, and which is brought into contact with the head surface. The flexible part 6 can be deformed until the electrode part 5 is moved in a direction away from an axis line of the support part. The flexible part 6 applies contact pressure with the head surface to the electrode part 5, and the flexible part 6 also applies contact pressure with the had surface to the electrode part 5 moved roughly in a parallel direction along the head surface.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】簡便に脱着でき、かつ、頭表の正しい位置に電極を容易に配置可能な脳波電極保持具を提供する。【解決手段】脳波電極保持具1は、頭部の周囲に配置する本体部2と、本体部2に取り付けられた複数の支持部3と、少なくとも一部の支持部3の先端側に設けられ、本体部の内側に支持された脳波電極4と、を備え、本体部2は、手指を挿通させて脳波電極に触れることができる大きさの開口部を有し、脳波電極4は、基端側を支持部3によって支持され、可撓性を有し弾性変形する可撓部6と、可撓部の先端側に設けられ、頭表に接触させる電極部5と、を有し、可撓部6は、電極部5を支持部の軸線から離間させる方向に移動させるまで変形でき、可撓部6は、電極部5に頭表との接触圧を加え、可撓部6は、頭表に沿って略平行方向に移動させた電極部5にも頭表との接触圧を加える。【選択図】図1
