| 摘要 |
A medical tubing connector includes an elongated generally cylindrical housing for universal coupling to an identically configured connector. The housing includes an open connecting end, a nozzle for connecting to sterile medical tubing and a base portion defining a fluid passageway from the nozzle. A valve assembly is disposed within the connector. The housing also includes an interconnecting portion between the open end and the base portion that comprises a pair of diametrically opposite fingers. The fingers are spaced circumferentially apart to define complementary slots interspersed therebetween. The fingers and slots are configured for engagement when a pair of connectors are interengaged to form a sterile enclosure about the valve assemblies of each connector. The valve assembly for each connector includes a piston that slides within the interlocking portion and contacts several piston retaining stops near the open end of the housing to keep the valve assembly within the housing. The piston also includes a plunger having a feed orifice in its outer surface that communicates with a bore extending along the length of the plunger. The bore opens at a coupling port in a coupling face at the other end of the piston. The coupling face contacts the coupling face of another connector when a pair of connectors are interengaged. A coupling O-ring surrounds the coupling port and is adapted to form a sealed fluid connection when the coupling faces contact. A collar and O-ring are mounted in the fluid passageway with the plunger passing therethrough. The piston is spring biased to a normally closed position, in which the feed orifice is sealed from the fluid passageway by the collar and the sealring. When the pair of connectors are interengaged with the complementary fingers and slot connected, the piston is in an open position in which the feed orifice is in fluid connection with the fluid passageway and the coupling faces remaining in sealed fluid connection.
|
