Patent ID: 8449187

Claim:
A fluid containing bag comprising a bag main body which includes front and rear two sheets and an entire periphery of which is hermetically sealed except one portion, an inlet/outlet spout a proximal end of which is connected to the one portion and a distal end of which is spaced from the proximal end and extends to outside of the bag main body, and a reinforcing tape permanently attached to a substantially entire periphery or an entire periphery of an inner peripheral face only of a base portion of the inlet/outlet spout so as to be immovably joined to said inner peripheral face, the base portion of the inlet/outlet spout being proximate the proximal end of the inlet/outlet spout and spaced from the distal end of the inlet/outlet spout, the inlet/outlet spout being formed by two spout sheets which are adhered at both side portions thereof, and the reinforcing tape being attached to bridge, only at the base portion of the inlet/outlet spout, at least the two spout sheets forming the inlet/outlet spout at both side adhering portions of the inlet/outlet spout.