PROBLEM TO BE SOLVED: To provide a method for manufacturing a needle-like body which increases efficiency of medicament delivery for increasing the delivery amount.SOLUTION: A method for manufacturing a needle-like body original plate 400 having a needle-like part 101 on one surface of a base plate 100 includes the steps of: forming the cone-shaped needle-like part by finely processing the base plate applying a repellent etching protective material 103 on the needle-like body and hardening the etching protective material removing the etching protective material from a tip end part of the needle-like body to an intermediate part between the tip end part and a bottom surface at which the needle-like part is continuously connected to the base plate dripping a step forming material 109 to the tip end part of the needle-like part which is exposed by removing the etching protective material and hardening the step forming material.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2017,JPO&INPIT【課題】医薬品送達の効率を上げ、送達量を増大させることができる針状体を製造する方法を提供する。【解決手段】基板100の一方の面に針状部101を備える針状体原版400の製造方法であって、基板を微細化工することにより錐体状の針状部を形成する工程と、その針状部に、撥液性のエッチング保護材103を塗布・硬化する工程と、その針状部の先端部から、その先端部と針状部が基板と連接する底面との中間部までのエッチング保護材を除去する工程と、エッチング保護材が除去されることで露出した針状部の先端部に、段差形成材料109を滴下する工程と、その段差形成材料を硬化させる工程とを備えていることを特徴とする針状体原版の製造方法。【選択図】図3
