PROBLEM TO BE SOLVED: To provide a patch case that can easily be attached to a microneedle applicator, enables easy separation of microneedle patches during needling, and can be used disposably.SOLUTION: The main body of a patch case according to the present invention is characterized by using a thermoplastic polymer as a raw material and being capable of holding microneedle patches comprising a support body film that can be thermally fused with the thermoplastic polymer. It is preferable that the thermoplastic polymer of the main body and the fusible raw material of the support body film be both polyolefins or both the same thermoplastic polymer. Since the applicator does not make contact with the skin of a person receiving administration if the patch case is attached to the front surface of the applicator, hygiene can be maintained even if the applicator is used continuously.SELECTED DRAWING: Figure 1【課題】マイクロニードルアプリケータに容易に取り付けられ、刺入に際し容易にマイクロニードルパッチを分離でき、使い捨て使用が可能なパッチケースを提供する【解決手段】本発明に係るパッチケースの本体は、熱可塑性高分子を素材とし、該熱可塑性高分子と熱融着可能な支持体フィルムを備えるマイクロニードルパッチを保持できることを特徴とする。該本体の熱可塑性高分子と該支持体フィルムの融着可能な素材とが、共にポリオレフィン、あるいは共に同一の熱可塑性高分子であることが好ましい。さらに、パッチケースをアプリケータの前面に取り付ければ、アプリケータが被投与者の皮膚に接触しないので、アプリケータを連続使用しても衛生が保たれうる。【選択図】図１
