PROBLEM TO BE SOLVED: To provide an expired air sampling vessel which can be sealed easily after sampling expired air.SOLUTION: An expired air sampling vessel comprises a base cap 20A including a through-hole 21a communicated to an internal space M, and a nozzle 30A which guides expired air blown in from a distal end opening 31a of a tubular body 31 to the internal space M. A top surface wall 21 includes an inner cylindrical body 21b, an outer cylindrical body 21e which is erected while surrounding the inner cylindrical body 21b, and at least one hole 21d which is provided mutually between the inner cylindrical body 21b and the outer cylindrical body 21e and communicated to the internal space M. The nozzle 30A includes an outer circumferential wall 33 supported by the outer cylindrical body 21e so as to be displaced for moving up and moving down, and the outer circumferential wall 33 includes an exit passage Kb for discharging gas in the internal space M toward the outside. An upper surface wall 32 includes a seal part 32a for closing the exit passage Kb under a moving-down attitude of the nozzle 30A and for opening the exit passage Kb, on the other hand, under a moving-up attitude of the nozzle 30A.COPYRIGHT: (C)2013,JPO&INPIT【課題】呼気を採取した後に容器を簡単に封止することができる、呼気採取容器を提供する。【解決手段】呼気採取容器は、内部空間Mにつながる貫通開孔21aを設けたベースキャップ20Aと、管状体31の先端開口31aから吹き込まれる呼気を内部空間Mに導くノズル30Aとを備え、天面壁21は、内側筒体21bと、内側筒体21bを取り囲んで起立する外側筒体21eと、内側筒体21b及び外側筒体21eとの相互間に設けられ内部空間Mに通じる少なくとも1つの開孔21dとを備え、ノズル30Aは、外側筒体21eに上昇、下降変位可能に支持される外周壁33を有し、外周壁33は、内部空間M内の気体を外界に向けて排出する出口通路Kbを備え、上面壁32に、ノズル30Aの下降姿勢にて出口通路Kbを閉鎖する一方、ノズル30Aの上昇姿勢にて出口通路Kbを開放するシール部32aを設けたことを特徴とする。【選択図】図2
