PROBLEM TO BE SOLVED: To surely press a lingual frenulum or a tongue bottom part mucosa without causing pain, regardless of a distance from a mental spine to a lingual frenulum.SOLUTION: An oral cavity insertion tool 1 comprises: a plate-state base part 10 comprising, a belt-state pressing piece 30 which is folded forward on an upper end, a belt-state pressing piece 40 which is folded forward on a lower end, and an air hole 13 penetrating in a cross direction a rearward projection part comprising, an opposite wall part 21 projecting rearward from a center of the base part 10, and facing the base part 10 with an interval between it and the base part 10 into which upper teeth can be inserted, and an opposite wall part 81 facing the base part 10 with an interval between it and the base member 10 into which lower teeth can be inserted and a belt-state lingual frenulum pressing plate 50 extending from a rear end of the rearward projection part to downward and rearward. The lingual frenulum pressing plate 50 comprises a pressing part 51 which is curved to be turned upward and rearward on a rear end.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2017,JPO&INPIT【課題】オトガイ棘から舌小帯までの距離に関わらず、痛みを伴わずに舌小帯又は舌底部粘膜を確実に押圧して気道を確保すること。【解決手段】口腔挿入具1は、上端において前方に折り返された帯状の押圧片30と、下端において前方に折り返された帯状の押圧片40と、前後方向に貫通する空気孔13と、を備える板状のベース部10と、ベース部10の中央から後方に突出し、ベース部10との間に上歯を挿入可能な間隔を設けてベース部10に対して対向する対向壁部21と、ベース部10との間に下歯を挿入可能な間隔を設けてベース部10に対して対向する対向壁部81と、を備える後方突出部と、後方突出部の後端から下方及び後方に延設される帯状の舌小帯押圧板50と、を有する。舌小帯押圧板50は、後端において後方に向けて上方に捲れ上がるように湾曲する押圧部51を備える。【選択図】図4
