A container (20) specially intended for the transport and the aseptic transfer of a biopharmaceutical product to or from a closed chamber (10) equipped with a leaktight joining device (40), comprising:
- an annular flange (30) delimiting an opening (26);
- a removable cover (28) adapted for sealing the opening (26) of the annular flange (30);
- built-in means for locking/unlocking (110) the removable cover (28) on the annular flange (30);
- and
- a peripheral envelope (22) integral with the annular flange (30) and delimiting an enclosed inside space (24) adapted for receiving products belonging to the biopharmaceutical field;
- wherein the built-in locking/unlocking means (110) comprise at least one built-in functional locking/unlocking arrangement (112) formed, on the one hand, by a through-housing (114) formed in the annular flange (30) and a blind housing (116) formed in the removable cover (28) and in an extension of the through-housing (114) when the removable cover (28) seals the opening of the annular flange (30), and, on the other hand, by a pin at an inner radial position (118) and a pin at an outer radial position (120) which can be introduced and moved within the blind housing (116) of the removable cover (28) and the through-housing (114) of the annular flange (30);
- the container (20) being able to be in an initial locking position where, on the one hand, the pin at the inner radial position (118) has an internal functional portion for initial locking (118INT) arranged in the blind housing (116) of the removable cover (28) and an external functional portion for initial locking (118EXT) arranged in the through-housing (114) of the annular flange (30) so as to prevent the relative movement of the removable cover (28) with respect to the annular flange (30), and, on the other hand, the pin at the outer radial position (120) is at least partially arranged in the through-housing (114) of the annular flange (30);
- the container (20) being able to be in an intermediate unlocking position in which, on the one hand, the pin at the inner radial position (118) is at least partially arranged in the blind housing (116) of the removable cover (28) and is completely outside the through-housing (114) of the annular flange (30) and, on the other hand, the pin at the outer radial position (120) is at least partially arranged in the through-housing (114) of the annular flange (30) and is completely outside the blind housing (116) of the removable cover (28) so as to allow the relative movement of the removable cover (28) with respect to the annular flange (30);
- wherein the container (20) is able to be in a final locking position where, on the one hand, the pin at the inner radial position (118) is arranged in the blind housing (116) of the removable cover (28), and, on the other hand, the pin at the outer radial position (120) has an internal functional portion for final locking (120INT) arranged in the blind housing (116) of the removable cover (28) and an external functional portion for final locking (120EXT) arranged in the through-housing (114) of the annular flange (30) so as to prevent the relative movement of the removable cover (28) with respect to the annular flange (30),
- wherein the through-housing (114) and the pin at the outer radial position (120) have lengths such that, when the container is in the final locking position, said pin at the outer radial position (120) has a functional end portion at the outer radial position (122) which is either completely outside the through-housing (114) or is flush with the outer end opening of the through-housing (114).