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US 6,651,956 B2Granted
Slit-type swabable valve
AssigneeHalkey-Roberts Corporation
InventorPavel T. Miller
Life of this patent
Estimating the term…
Abstract
A valve which includes a stem having a slit at an end thereof. The valve stem is located in a valve body and is deformable. When a tip of an instrument is engaged with a slit in the stem, the stem shifts in the valve body, top portion folds inward, the slit seals against the instrument and allows liquid to flow through the stem, to or from the instrument. All components have circular cross sectional geometry.
Claims21
A slit-type swabable valve comprising:
- a valve body having an end;
- and a resilient, deformable valve stem which is located in said valve body and is shiftable therein, said valve stem having a first end, a second end opposite said first end and an exterior surface, said valve stem having a linear slit at said first end and having a notch on said exterior surface, said notch providing a point of weakness, said notch configured to provide that, when the valve stem shifts in the valve body upon actuation of the valve, the valve stem buckles generally outwardly, at the notch, thereby providing increased flow volume within the valve stem, wherein said first end of said valve stem is proximate said end of said valve body when said valve stem is not shifted, such that said first end of said valve stem is readily accessible for cleaning, wherein said second end of said valve stem is engaged inside said valve body such that said second end does not shift during actuation of the valve, wherein the valve does not include an internal cannula which engages said valve stem, and wherein said slit in said valve stem is normally closed.
A slit-type swabable valve comprising:
- a valve body having an end;
- and a resilient, deformable valve stem which is located in said valve body and is shiftable therein, said valve stem having a first end, a second end opposite said first end, and an exterior surface, said valve stem having a linear slit at said first end and having a notch on said exterior surface, said notch providing a point of weakness, said notch configured to provide that, when the valve stem shifts in the valve body upon actuation of the valve, the valve stem buckels generally outwardly, at the notch, thereby providing increased flow volume within the valve stem, wherein the valve stem is configured to collapse and fold inward generally about a fulcrum point which is located at an area of minimal wall thickness, wherein said first end of said valve stem is proximate said end of said valve body when said valve stem is not shifted, such that said first end of said valve stem is readily accessible for cleaning, wherein said second end of said valve stem is engaged inside said valve body such that said second end does not shift during actuation of the valve, wherein the valve does not include an internal cannula which engages said valve stem, and wherein said slit in said valve stem is normally closed.
A slit-type swabable valve comprising:
- a valve body having an end:
- and a resilient, deformable valve stem which is located in said valve body and is shiftable therein, said valve stem having a first end, a second end opposite said first end, and an exterior surface, said valve stem having a linear slit at said first end and having a notch on said exterior surface, said notch providing a point of weakness, said notch configured to provide that, when the valve stem shifts in the valve body upon actuation of the valve, the valve stem buckles generally outwardly, at the notch, thereby providing increased flow volume within the valve stem, wherein the valve stem collapses and folds inward generally about a fulcrum point which is located at an area of minimal wall thickness, wherein both the valve body and valve stem are uniformly round and have a uniformly round cross-sectional profile, wherein said first end of said valve stem is proximate said end of said valve body when said valve stem is not shifted, such that said first end of said valve stem is readily accessible for cleaning, wherein said second end of said valve stem is engaged inside said valve body such that said second end does not shift during actuation of the valve, wherein the valve does not include an internal cannula which engages said valve stem, and wherein said slit in said valve stem is normally closed.
Dependencies are inferred from the claim text.