Patent ID: 9340766
Filing Date: 2016-05-17
CPC Classification: C12M

Claim Text:
1. An oxygen-permeable bladder comprising two walls coupled to each other along each outer edge of the two walls, wherein each of the two walls comprises: (a) a first film defining an inner wall of the bladder, the first film comprising a thin flexible film permeable to oxygen and carbon dioxide and impermeable to liquid; and (b) a second film disposed adjacent to an outer surface of the first film and comprising a plurality of perforations, wherein the first and second films are only bonded to each other along each outer edge of the two walls, and wherein each of the plurality of perforations has a diameter ranging from about 0.1 mm to about 3 mm, and wherein one of the two walls comprises a spout extending from the one of the two walls, the spout defining an opening in fluid communication with an inner cavity of the bladder.