Hydrophobic valve
First Claim
1. A hydrophobic value for liquids comprising:
- a. a housing defining inlet means and outlet means, each of the inlet and outlet means communicating with the housingb. a resilient, inflatable boot mounted in the housing, said boot positioned to block the flow of liquid through the outlet means when inflated and to permit flow the liquid through the outlet means when in a deflated state, said boot including an open portion adjacent to the inlet means, andc. a hydrophobic filter element capable of repelling liquid but permitting the passage of air therethrough positioned over said open portion adjacent to the inlet means whereby liquid introduced to the housing the inlet means is passed through the housing for discharge from the outlet means and air introduced with the liquid is passed through the hydrophobic filter into the boot to stop the flow of liquid when the boot is inflated with air.
0 Assignments
0 Petitions
Accused Products
Abstract
A hydrophobic valve for use with liquids, such as liquids for intravenous administration comprising a housing provided with inlet and outlet means, both of which communicate with the housing, a resilient, inflatable boot mounted in the housing and positioned to block the flow of liquid through the outlet means when inflated and to permit the flow of liquid through the outlet means when in a deflated position, with the boot including an open portion adjacent to the inlet means which is covered by a hydrophobic filter element capable of repelling liquid but permitting the passage of gases, such as air, therethrough whereby liquid introduced to the housing through the inlet means is passed through the housing for discharge from the outlet means and any air introduced with the liquid is passed through the hydrophobic filter into the boot to stop the flow of liquid from the outlet means when the boot is inflated with the gas.
35 Citations
12 Claims
-
1. A hydrophobic value for liquids comprising:
-
a. a housing defining inlet means and outlet means, each of the inlet and outlet means communicating with the housing b. a resilient, inflatable boot mounted in the housing, said boot positioned to block the flow of liquid through the outlet means when inflated and to permit flow the liquid through the outlet means when in a deflated state, said boot including an open portion adjacent to the inlet means, and c. a hydrophobic filter element capable of repelling liquid but permitting the passage of air therethrough positioned over said open portion adjacent to the inlet means whereby liquid introduced to the housing the inlet means is passed through the housing for discharge from the outlet means and air introduced with the liquid is passed through the hydrophobic filter into the boot to stop the flow of liquid when the boot is inflated with air. - View Dependent Claims (2, 3, 4, 5)
-
-
6. In an administration set for the administration of intravenous liquids comprising a drip chamber adapted to receive intravenous liquid from a source of said liquid and administration means for infusing the liquid from the drip chamber to a patient, the improvement comprising a hydrophobic valve interposed between the drip chamber and said means, said hydrophobic valve comprising:
-
a. a housing defining inlet means and outlet means, each of the inlet and outlet means communicating with the housing b. a resilient, inflatable boot mounted in the housing, said boot positioned to block the flow of liquid through the outlet means when inflated and to permit flow of liquid through the outlet means when in a deflated state, said boot including an open portion adjacent to the inlet means, and c. a hydrophobic filter element capable of repelling liquid but permitting the passage of air therethrough positioned over said open portion adjacent to the inlet means whereby liquid introduced to the housing through the inlet means is passed through the housing for discharge from the outlet means and air introduced with the liquid is passed through the hydrophobic filter into the boot to stop the flow of liquid when the boot is inflated with air. - View Dependent Claims (7, 8, 9, 10, 11, 12)
-
Specification