Transfervorrichtung durch Saugen.

摘要

A suction transfer assembly (1) for a medicament liquid (L), especially a hazardous liquid, that permits safe and easy transfer of liquid (L) from its container to a suction operating dispenser device such as a syringe (60), yet avoids leakage on detaching the device from the assembly, comprises a longitudinal vial (10) and longitudinal adapter (30). The vial (10) forms an enclosed longitudinal chamber (14) filled with the medicament liquid (L) and has an open end (13) closed by a penetrable stopper (15). The vial (10) is slidable longitudinally relative to the stopper (15) and the stopper (15) seals the liquid (L) in the chamber (14). The stopper (15) has fastening means (19) facing the vial open end (13). The adapter (30) has front (31) and rear (32) ends and an internal flow path (33) extending therethrough. The rear end (32) has a rearwardly facing hollow needle (36) with a pointed tip (37) defining the flow path (33) rear terminus, and fastening means (38). The rear end (32) is insertable into the vial open end (13) to fasten the adapter fastening means (38) to those of the stopper (15) and to penetrate the stopper (15) by the needle (36) so as to connect the chamber (14) and flow path (33). The adapter front end (31) has a forwardly facing hollow nozzle (39) defining the flow path (33) front terminus, a self-closing check valve (40) in the flow path (33) adjacent the nozzle (39), and a lock connector (45). A suction device (60) can be locked to the adapter (30) so as to open the check valve (40). Suction operation of the device (60) will cause liquid transfer from the chamber (14) via the adapter (30) to the device (60) and simultaneous compensating vial (10) movement longitudinally relative to the stopper (15) under external atmospheric pressure to reduce the chamber (14) volume by an amount generally equal to the liquid transferred.