Manual filling aid with push button fill

摘要

A device (30, 140) for transferring a liquid medication between a supply container (36) and a destination container (38) comprises a pump base unit (32, 142) and a detachable connector (34, 144) detachably secured to the pump base unit (32, 142). The pump base unit (32, 142) comprises a pump mechanism (40, 146) designed to generate a negative pressure; and the detachable connector (34, 144) comprises at least one pump conduit (64) to transmit the pumping pressure to a destination container (38) connected to the detachable connector (34, 144), at least one vent conduit (60, 62) to vent ambient air into a supply container (36) connected to the detachable connector (34, 144), in order to equalize the pressure inside the supply container (38) with the ambient pressure, and a fluid transfer passage (58) to transfer liquid from said supply container (36) to said destination container (38). The detachable connector (34, 144) can include one or more liquid impermeable and gas permeable membranes (130) to ensure that the liquid is retained in the detachable connector. After the fluid is transferred the detachable connector (34, 144) is removed and replaced by a new detachable connector (34, 144), in order to prevent contamination of the pump (32, 142). An interlock mechanism (46) is used to prevent premature removal of the detachable connector (34, 144) and/or the container (38) being filled.