The surgical instrument accommodating bag (100) comprises a bag-like body (20) having an opening (23) on the upper side and a waist belt (80) attached to the upper end of the bag-like body (20). In order to prevent the opening (23) from closing, an annular elastic member (30) is arranged along the periphery of the opening (23). The waist belt (80) is folded and held on the side surface of the bag-like body (20) by the surface fastener (60). In surgery, the practitioner wears the bag (100) by winding the folded waist belt (80) around the body of the practitioner and then joining the ends of the waist belt (80). The practitioner houses various surgical instruments in the bag-like body (20).手術器具収容バッグ(100)は、上方に開口部(23)を有する袋状本体(20)と、袋状本体(20)の上端に取り付けられた腰ベルト(80)とを備える。開口部(23)が閉じるのを防ぐために、開口部(23)の周囲に沿って環状の弾性部材(30)が配置される。腰ベルト(80)は折り畳まれて面ファスナー(60)で袋状本体(20)の側面の上に保持される。外科手術において、施術者は、折り畳まれた腰ベルト(80)を展開しつつ施術者の胴体に巻き付けてから腰ベルト(80)の両端を結び合わせることで、バッグ(100)を装着する。施術者は袋状本体(20)内に種々の手術器具を収容する。
