Patent ID: 7964392

Claim:
A culture double container comprising a gas-permeable culture container having an inlet and an outlet for cells or micro-organisms and for culture medium and passing gas, a gas-impermeable container covering the culture container, and culture container holding means for holding the culture container in the gas-impermeable container in such a manner that space is defined between the culture container and the gas-impermeable container, said culture double container receiving cells or micro-organisms, and culture medium in the gas permeable culture container and receiving gas controlled in its composition in the space defined between the culture container and the gas-impermeable container during culture of cell or micro-organism wherein said culture container is a container in the form of a generally rectangular bag in its plan view which is made of plastic and comprises a cylinder section consisting of a plurality of cylinders arranged in the form of a beach mat with end portions being formed adjacent to end portions in the longitudinal direction of the cylinder section, said end portions of the culture container having flat surfaces, outer edge portions of said end portions being respectively closed, and the respective cylinders being communicated with one another via the end portions.