BAG

PURPOSE:To provide a bag which is inexpensive, and by which a germfree storage can be assuredly performed by a method wherein an apparatus for medical treatment, which requires a germfree condition, is put in a cylindrical body being formed by folding back a sheet, and sealing the sides, and then the upper and lower ends are sealed. CONSTITUTION:An apparatus for medical treatment which required a germfree condition, e.g. a cap 1, is stored in a cylindrical body which is formed in such a manner that folding back parts at 3 locations are provided on a sheet, and a side 9 of the sheet is sealed. Then, the upper end 3' and lower end 3 are bonded by welding or adhesive, and an airtight and peelable storage bag body 2 is formed. Then, on the outer edge of the side sealed part 9, a non-sealed part 8 is provided, and at the same time, a notch 6 is provided at two locations. At the time of usage, the non-sealed part 8 on the outer edge of the notch 6 is held and pulled. By this motion, due to the characteristics of a stretched film, the head part of the cap 1 inside is exposed while the body part of the storage bag body 2 is being torn. To the exposed head part of the cap 1, the tip of a tube which is pulled out from an organism is fitted on or screwed on. By this method, an apparatus for medical treatment or apparatus for biological study can be easily and inexpensively stored under an assuredly germfree condition.