Multiple dose drug vial adapter for use with a vial having a pie

Details Multiple dose drug vial adapter for use with a vial having a pie Multiple dose drug vial adapter for use with a vial having a pie

1997-08-07

1998-11-10

Lee, Kevin

Valves and valve actuation

With correlated flow path

Valve operated by joining flow path sections

604249, 604256, 604905, A61M 500

Patent

active

058332138

ABSTRACT:
A drug vial adapter according to the invention includes: a first coupling member having a female luer connector (preferably a luer lock) with a fluid path therethrough, a flange having a first sealing ring seat formed therein and a first mating structure; a second cylindrical coupling member having a centrally located septum piercing tube with a fluid path therethrough and a second mating structure; and a valve member including a valve stem and a resilient valve body having an annular sealing surface. A valve body seat is formed in the interior of the second coupling member by a plurality of radially arranged stepped vanes. According to a preferred embodiment, the second coupling member is formed as a stepped cylinder having a relatively large diameter adjacent the point of the septum piercing tube, a relatively small diameter adjacent the valve body seat and an intermediate diameter therebetween. The presently preferred valve body is substantially frustroconical having a relatively broad end with a stepped axial bore defining the annular sealing surface. The presently preferred valve stem has a stepped cylindrical portion which fits into the axial bore of the valve body and a pair of spaced apart upstanding members which extend into the female luer.

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