BigPatents India

A fluid transfer adapter (321) for use with a syringe barrel (322) having an open proximal end (328) including a collar (331) having adapter engaging structure (334) and a distally-facing frusto-conically shaped surface (335) comprises a hub (353) having a proximally-facing frusto-conically shaped surface (359) for mating with the frusto-conically shaped surface (335) on the barrel (322), structure for thread ably engaging the hub to the collar(331) of the barrel (322) so that the frusto-conically shaped surface (359) of the hub (353) contacts the frusto -conically shaped surface(335) of the barrel (322) to prevent liquid flow between the surfaces and a fluid transfer (390) having a passageway there through connected to the distal end (356) of the hub (353) so that the lumen (394) is in fluid communication with a conduit (357) in the hub (353). (FIG). 1