| 摘要 |
A fluid transfer device comprising a housing and a flow controller at least partially slidably disposed in the housing, the flow controller comprising at least one fluid channel and a vent conduit. A shroud, alone or in combination with the fluid transfer device comprising a plurality of segments terminating in a annular edge and defining a plurality of openings, and a plurality of protrusions, each of the plurality of protrusions having a proximal end connected to the annular edge and a distal end positioned in one of the plurality of openings adapted for the housing of the fluid transfer device is provided. |
