PROBLEM TO BE SOLVED: To provide a needle array transdermal absorption sheet in which a needle part can be surely inserted within a skin and a method for manufacturing the same.SOLUTION: A needle array transdermal absorption sheet has needle parts having a pencil shape, truncated cone parts having a truncated cone shape or a polygonal truncated cone shape, and a sheet part having a planar plate shape, the plurality of truncated cone parts connected to the needle parts are arranged in the surface of the sheet part, the needle parts have needle parts having a cone shape or a polygonal cone shape and body parts having a circular columnar shape or a polygonal columnar shape and has a constitution in which the bottom surface of the needle parts and the end faces of the body parts are connected, the end faces of the end faces of the body parts, not connected to the needle parts are connected to the end faces of the truncated cone parts, having a narrower area, the end face of the end face of the truncated cone parts, having a larger area are connected to the surface of the sheet part, the side surfaces themselves adjacent each other of the truncated cone parts in the surface of the sheet part come into contact with each other.COPYRIGHT: (C)2013,JPO&INPIT【課題】ニードル部を確実に根元まで皮膚内に挿入することができる針状アレイ経皮吸収シート及びその製造方法を提供する。【解決手段】鉛筆形状のニードル部と、円錐台形状又は角錐台形状の錐台部と、平板形状のシート部とを備え、前記シート部表面には、前記ニードル部と接続された前記錐台部が複数個設置され、前記ニードル部は、円錐形状又は角錐形状の針部と、円柱形状又は角柱形状の胴体部とを有し、前記針部の底面と前記胴体部の端面とが接続された構成を成し、前記胴体部の端面のうち前記針部に接続されていない側の端面は、前記錐台部の端面のうち面積の狭い側の端面に接続され、前記錐台部の端面のうち面積の広い側の端面は、前記シート部の表面に接続され、前記シート部表面において、互いに隣接する前記錐台部の側面同士が接している針状アレイ経皮吸収シート。【選択図】図1
