CPC A61B 10/0096 (2013.01) [C12M 21/08 (2013.01); C12M 23/44 (2013.01); C12M 27/00 (2013.01); C12M 29/20 (2013.01)] | 13 Claims |
1. A container (1; 10; 100) for in vitro diagnostic comprising:
a lower receptacle (2) designed to contain, before using the container (1; 10; 100), a non-toxic liquid (LS), having a side wall (20) provided with an external thread (21) and ending with a circular mouth (22),
an upper receptacle (3) designed to contain, before using the container (1; 10; 100), a toxic liquid (LF), having a side wall (30) provided with an external thread (31) and ending with a circular mouth (32) smaller in diameter than the circular mouth (22) of the lower receptacle (2), and
threaded coupling means longitudinally engaging said external threads (21, 31) for a butt joint of the lower receptacle (2) with the upper receptacle (3),
characterized in that the threaded coupling means consists of a single connecting sleeve (4), consisting of
a transversal septum (40) against which the lower receptacle (2) and the upper receptacle (3) abut when the container (1; 10; 100) is completely closed,
a lower portion (41) having a side wall (43) with an internal thread (44) engaging the external thread (21) of the lower receptacle (2),
an upper portion (42) having a side wall (45) of a given length (L) with an internal thread (46) engaging the external thread (31) of the upper receptacle (3), the internal thread (46) of the upper portion (42) of the connecting sleeve (4) having a retaining projection (47) for limiting a removal stroke of the circular mouth (32) of the upper receptacle (3) from the transversal septum (40) of the connecting sleeve (4) by partial unscrewing of the upper receptacle (3);
the transversal septum (40) separating the lower portion (41) of the connecting sleeve (4) from its upper portion (42) and being provided with a plurality of passage openings and at least one vent opening;
the upper receptacle (3) having on its side wall (30) an abutting step- shaped circumferential projection (33) with a horizontal plane (34) for closing an interspace (50) formed between the side wall (45) of the upper portion (42) of the connecting sleeve (4) and the side wall (30) of the upper receptacle (3), a distance (D) of the horizontal plane (34) of the step-shaped circumferential projection (33) from the circular mouth (32) of the upper receptacle (3) being equal to said length (L) of the upper portion (42) of the connecting sleeve (4), in order to simultaneously close the lower receptacle (2) and the upper receptacle (3) when both are completely screwed into the respective lower portion (41) and upper portion (42) of the connecting sleeve (4).
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