公开(公告)号：US20190134368A1

公开(公告)日：2019-05-09

申请号：US16201300

申请日：2018-11-27

申请人： Nissha Co., Ltd.

发明人： Hiroyuki NAGAI ,  Kensaku AKITA ,  Masateru CHIYAMA

IPC分类号： A61M37/00 ,  B81C1/00 ,  B81B1/00 ,  B29C45/14

摘要： Provided is an inexpensive microneedle array with little dimensional error that can control, with high precision, the amount of a predetermined component to be introduced to the inner part of the skin, and a production method for this microneedle array. A foundation that is insoluble or sparingly soluble in inner part of the skin is overlaid on a mold. A plurality of frustum-shaped protrusions, which are insoluble or sparingly soluble in the raw material liquid, provided on a first main surface of the foundation are fit into a plurality of cone-shaped recesses. The raw material liquid in the plurality of cone-shaped recesses dries and, as a result, a plurality of microneedles, which are dissolvable in the inner part of the skin, are fixed to tip surfaces of the plurality of frustum-shaped protrusions.