PROBLEM TO BE SOLVED: To provide a storage tool which is inexpensive, has a simple structure for used medical instrument capable of stably treating a used medical instrument after used for a surgery, and managing the same.SOLUTION: A storage tool comprises a support body 101 formed of a bottom member 101a and a lid member 101b, and on a surface of the bottom member of the support body, a laminate is provided, the laminate being formed by arranging in this order, a first adhesive layer 102 on which a used medical instrument is mounted, and a first release sheet layer 103 having a same shape and size to those of the first adhesive layer. The lid member is provided on the first release sheet layer of the laminate, the support body has a fold provided to be folded into half for providing the bottom member and the lid member. The first release sheet layer is covered with the lid member. Three sides of the bottom member other than a side where the fold is provided on the bottom member, side walls 105a-105c which can be folded inward, are integrally provided. A second adhesive layer 107a is provided on a part of a rear surface of the bottom member.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】手術後の医療用器具を安全に処置し、管理することができる使用済み医療用器具の簡便な、安価な収納器の提供。【解決手段】底部材101aと蓋部材101bとからなる支持体101を有し、この支持体の底部材の表面上に、使用済み医療用器具が載置される第1粘着剤層102及びこの第1粘着剤層と同じ形状と大きさとを有する第1剥離紙層103をこの順番に設けてなる積層体を有し、この積層体の第1剥離紙層の上に蓋部材が設けられてなり、支持体は、底部材と蓋部材とに二つ折りできるように設けられた折り目を有してなる支持体であり、蓋部材で第1剥離紙層が覆われるように構成されてなり、底部材の折り目が設けられた辺以外の底部材の3つの辺のそれぞれに、内側に折り曲げ可能な側壁105a~105cが一体的に設けられてなり、底部材の裏面の一部に第2粘着剤層107aが設けられている。【選択図】図1