| 摘要 |
A fluid injector (20) for use with a needle-less syringue (26) or needle-less add-on IV line (28) is disclosed. The injector is connected to a main IV line (10) and has a fluid passageway (34) from the syringue or the add-on IV set (28) to the main IV line. The injector comprises an anti-backflow valve member (42) where the member is movable under fluid pressure alone between a first position where the fluid can flow through the injector and a second position where the fluid cannot flow through the injector. The injector (20) also comprises a valve (32) located near the syringe end of the injector for receiving the fluid from the syringue of the add-on IV line for injection into the main IV line (10) and for preventing air embolus entering into the IV line (10). |
