Patent ID: 6029946
Filing Date: 2000-02-29
Classification: A61M

Abstract:
A needleless valve comprising a tubular housing having a fluid inlet end and a fluid outlet end, a solid rod disposed between said fluid inlet end and said fluid outlet end within said housing and having expander means extending therefrom, and a hollow flexible plug within said housing overlying said rod and moveable therealong away from said fluid inlet end in response to insertion of a fluid supply nozzle into said inlet end and toward said fluid inlet end in response to withdrawal of said fluid supply nozzle from said inlet end, said hollow plug cooperating with said expander means of said rod to increase the volume of the interior of said plug during movement away from said fluid inlet end and cooperating with said expander means of said rod to decrease the volume of said plug interior during movement toward said fluid inlet end, whereby a fluid flow path between said inlet and outlet ends is alternately opened and closed and upon closing of said flow path residual fluid therein is expelled from said valve through said outlet end.