Patent ID: 8485727

Claim:
A flexible multilayer bag for storing and admixing medical products comprising: a) top, bottom, first and second lateral sides; b) a first chamber, a middle chamber, and a third chamber, the middle chamber having a longitudinal length that is from about two-thirds to about three-quarters of longitudinal lengths of the first and third chambers; c) a first frangible barrier separating the first and middle chambers and a second frangible barrier separating the middle and third chambers; d) a flap defining straight borders of upper ends of the first chamber, middle chamber and third chamber; and e) at least two ports located at the bottom side, each port providing access to a different one of the first, middle, and third chambers wherein the first, middle and third chambers are arranged such that rolling the bag from the top side allows selective activation of one of the first and second frangible barriers without activating the other of the first and second frangible barriers.