초록 ▼

An automatic fluid control having a first and second tube members and a slidable valve element capable of moving from a sealed closed position to an open position permitting fluid passage therethrough. In a preferred first embodiment, the elastomeric valve element is slidingly received with a passag

An automatic fluid control having a first and second tube members and a slidable valve element capable of moving from a sealed closed position to an open position permitting fluid passage therethrough. In a preferred first embodiment, the elastomeric valve element is slidingly received with a passageway in the first tube. The valve element has a flange portion containing a plurality of slits that, when inverted and stretched, permit fluid to pass therethrough, but when closed, are in contact with the inner wall of the first tube and prevents fluid from passing therethrough. The valve element also can have a rigid plug attached within an opening in the top surface to present a preferably non-deformable contact point for a male luer tip, which, when pressed downward on the valve element, breaks a seal between the valve element and the first tube inner wall. In a second embodiment a toroidal shaped valve portion selectively forms a seal over a pin extending axially from the second tube member, the pin having a plurality of grooves in its surface to permit passage of fluid when the seal created by the valve element is broken. In a third embodiment, a valve element maintains a seal against a pin extending from the base of the second tube member and having a plurality of grooves. When the valve element is urged downward against the upward force of a spring, the pin grooves permit fluid flow through the second tube member.

대표청구항 ▼

[ What is claimed is:] [1.] An automatic fluid control valve, comprising:a first rigid tube member having a top, a bottom, a first portion containing a first inner wall defining a first passageway having a first diameter, and having a flared second portion extending axially from said first portion a

[ What is claimed is:] [1.] An automatic fluid control valve, comprising:a first rigid tube member having a top, a bottom, a first portion containing a first inner wall defining a first passageway having a first diameter, and having a flared second portion extending axially from said first portion and containing a second inner wall defining a second passageway;a second rigid tube member having a top and a bottom, an inner passageway defined therein by an inner wall, said first and second tube members capable of mating engagement with axial alignment; and,an elastomeric cylindrical valve element assembly, comprisinga first portion having an outer wall,a top surface,a rounded concave bottom surface,a hollow second portion extending downward from said first portion,a third portion extending downward from said second portion and flaring outward, said third portion terminating in an annular lip, said third portion also having at least one opening defined therein for permitting fluid to selectively pass therethrough,such that said valve element can be moved from a closed position in which fluid cannot pass through said valve assembly to an open position wherein fluid can pass through said at least one opening in said third portion of said valve element.