PROBLEM TO BE SOLVED: To solve the problem that although a microneedle sheet is manufactured by injecting a needle material into a stamper for which recess sections are formed on a base material, the recess section of the stamper is extremely small, and therefore, a section where the needles cannot be formed because air has not been removed is generated.SOLUTION: On the bottom of the recess section of the stamper of the microneedle sheet, a through-hole which penetrates the base material is bored. Air is removed by the through-hole, and the microneedle sheet filled with the needle material to the bottoms of the recess sections can be obtained.COPYRIGHT: (C)2011,JPO&INPIT【課題】マイクロニードルシートは、母材に凹部を形成したスタンパーにニードル原料を注入して作製するが、スタンパーの凹部は微小なため、空気が抜けずにニードルが形成できない部分が生じるといった課題があった。【解決手段】マイクロニードルシートのスタンパーの凹部の底に母材を貫通する貫通孔を穿設する。この貫通孔によって空気は抜け、凹部の底までニードル原料が充填されたマイクロニードルシートを得ることができる。【選択図】図1
