PROBLEM TO BE SOLVED: To provide a tube instrument for being inserted into a nasal cavity, which can easily secure an airway by establishing compatibility between the softness and rigidity of a tube.SOLUTION: A tube instrument 1 for being inserted into a nasal cavity comprises a tube 2 that is made of a hollow rubbery elastic body having a through-hole for connecting respective openings 6 and 7 at both ends. The tube 2 can be inserted into the nasal cavity. The tube instrument 1 for being inserted into the nasal cavity also comprises a rib protruding from an inner wall of the through-hole, midway in a length direction of the tube 2.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】チューブの柔らかさと剛性の両立を図り気道を確保容易な鼻腔挿入チューブ器具を提供する。【解決手段】両端の各開口部6,7を繋ぐ貫通孔を有する中空状のゴム状弾性体から成るチューブ2を備え、鼻腔にチューブ2を挿入可能な鼻腔挿入チューブ器具1であって、チューブ2の長さ方向の途中であって貫通孔の内壁から突出するリブを備える鼻腔挿入チューブ器具1に関する。【選択図】図1
