| 摘要 |
A valve assembly 50 comprising a three-way connector 51 operatively interconnecting: an inlet 58, an outlet 56 and a vent 66, the inlet 58 being operatively connectable, in use, to an aspirator tube; the outlet 56 being operatively connectable, in use, to a syringe 82; and the vent 66 comprising a one-way valve 70 permitting, in use, the flow of a fluid out of the three-way connector 51, wherein the inlet 58 comprises a receptacle 60 containing a porous or perforated element 62 which, when dry, permits the flow of gasses into the three-way connector 51, but which when wetted by a liquid, inhibits or prevents the flow of liquid into the three-way connector 51. |
