PROBLEM TO BE SOLVED: To provide a powdered drug spraying apparatus and a powdered drug spraying method in which a powdered drug can be scattered without using an inconvenient medium such as gas or a solvent, the dissolution of the drug in the solvent and the application of heat for scattering the drug are not necessary, a fixed power supply is not needed, and is portable and simple.SOLUTION: A powdered drug spraying device 1 includes: a container body 11 containing water 51 a cylinder 31 inserted and attached to a lid 21 closing an upper end opening part 13 and having both opening ends facing the inside and outside of the container body 11 a powdered drug 30 with drug (d/d-T-cyphenothrin) impregnated in powder (fluorite) and contained in the cylinder 31 a piston 27 hermetically sliding to the lower side slide inner circumferential wall 33 of the cylinder 31, and also having a cavity S to an upper side enlarged diameter inner circumferential wall 35 and a sodium bicarbonate 41 and a citric acid 43 for producing a reactant gas by reacting with water 51 when being input in the container body 11.COPYRIGHT: (C)2015,JPO&INPIT【課題】ガスや溶媒等の不都合な媒体を用いることなく、粉状薬剤を拡散することができ、薬剤を溶媒に溶かす必要がなく、拡散のために熱を加える必要もない、固定電源を必要としない持ち運び可能で簡便な粉状薬剤噴射装置および粉状薬剤噴射方法を提供する。【解決手段】粉状薬剤噴射装置1は、水51を収容する容器本体11と、上端開口部13を塞ぐ蓋体21に挿着され、両開口端が容器本体11の内部と外部に臨むシリンダ31と、粉体(フローライト)に薬剤(d・d-T-シフェノトリン)が含浸され、シリンダ31内に収納される粉状薬剤30と、シリンダ31の下方側摺動内周壁33に対しては気密に摺動すると共に上方側拡径内周壁35に対しては空隙Sを有するピストン27と、容器本体11内に投入されると水51と反応して反応ガスを発生する重曹41およびクエン酸43と、を備える。【選択図】図1
