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US 10,238,777 B2Granted
Hydrophobic porous non mechanical valve for medical suction device
AssigneePorex Corporation
InventorsMichael Arthur, Guoqiang Mao
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Abstract
The present invention provides a porous non mechanical valve which retards or prevents the passage of bodily fluids and is resistant to being occluded or blocked by exposure to the surgical fumes or aerosols encountered during surgical procedures.
Claims17
A porous non mechanical valve comprising an internal component and an external component,
- the external component comprising a hydrophobic, sintered, non self-sealing component, the external component sintered to and co-molded with and over the internal component,
- the internal component comprising a sintered, porous self-sealing component, the internal component shaped to define a central cylindrical lumen,
- wherein the external component and the internal component comprise different pore sizes, the external component comprising a pore size in a range of 20-40 microns, wherein the external component comprises a smaller pore size than the internal self-sealing component,
- wherein the porous non mechanical valve blocks or retards the flow of liquid through the porous non mechanical valve.
1 more element
Dependencies are inferred from the claim text.