PROBLEM TO BE SOLVED: To provide a percutaneous administration device capable of increasing a drug injection dose into a skin.SOLUTION: The percutaneous administration device includes: an administration part that includes a substrate having a substrate surface 21S, and a projection part 22 projecting from the substrate surface 21S, the projection part 22 having a flow passage inside the projection part 22, opened to a peripheral surface of the projection part 22 and a support body 30 including a plurality of support parts 31 coming into contact with an administration object. Viewed from a direction facing the substrate surface 21S, the plurality of support parts 31 are mutually spaced from adjacent support parts 31 and enclose the substrate surface 21S, with a gap formed between the substrate surface 21S and the support parts 31. The administration part and the support body 30 are so configured as to displace the projection part 22 relative to the support parts 31 along a direction of extending to the projection part 22, from a position in a space enclosed by the plurality of support parts 31 to a position outside the space.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2019,JPO&INPIT【課題】皮膚への薬剤の注入量を増大することのできる経皮投与デバイスを提供する。【解決手段】経皮投与デバイスは、基体面21Sを有する基体部、および、基体面21Sから突き出た突起部22であって、突起部22の内部に当該突起部22の周面に開口する流路を有する突起部22を備える投与部と、投与の対象に当接される複数の支持部31を備える支持体30とを備える。基体面21Sと対向する方向から見て、複数の支持部31は、相互に隣接する支持部31の間に隙間を空けるとともに基体面21Sと支持部31との間に隙間を空けて基体面21Sを囲み、投与部と支持体30とは、複数の支持部31によって囲まれる空間内の位置から当該空間外の位置へ、突起部22の延びる方向に沿って、支持部31に対して突起部22が相対的に変位可能に構成されている。【選択図】図2
