Abstract: A recipient has a body designed to contain a fluid and an orifice by which the fluid may be introduced into the body. The recipient is equipped with a system for the sterile transfer of the fluid from inside the body. The transfer system comprises a deformable and impervious wall, wherein the wall is positioned with respect to the recipient so that it forms a closed and sterile space inside which the orifice is located, a fluid communication device between the closed space and the outside of the recipient, wherein the device may be handled without compromising the sterility, and a seal structure associated with the orifice, wherein the seal structure is at least partially located inside the closed space so that it may be moved between an open position and a closed position of the orifice.