Bi-directional valve assembly used in needleless injection or infusion ports
First Claim
1. A bi-directional valve assembly disposed within an infusion system to permit the administration of an infusion solution without the use of a needle, said bi-directional valve assembly is a two-way spring valve which comprises:
- a spring means, a valve port, and a valve plunger having a sealing means and a conduit means disposed thereabout, wherein said spring means is connected to said valve plunger in such a way as to permit the opening of said conduit means when said spring means is recoiled such that said sealing means is not in contact with said valve port and to permit the closing of said conduit means when said spring means is expanded such that said sealing means is in contact with said valve port;
whereby said bi-directional valve assembly is capable of opening and closing said infusion system.
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Accused Products
Abstract
A bi-directional valve assembly disposed within an infusion system to permit the administration of an infusion solution without the use of a needle, the bi-directional valve assembly is a two-way spring valve which comprises: a spring means, a valve port, and a valve plunger having a sealing means and a conduit means disposed thereabout, wherein the spring means is connected to the valve plunger in such a way as to permit the opening of the conduit means when the spring means is recoiled such that the sealing means is not in contact with the valve port and to permit the closing of the conduit means when the spring means is expanded such that the sealing means is in contact with the valve port; whereby the bi-directional valve assembly is capable of opening and closing the infusion system.
121 Citations
19 Claims
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1. A bi-directional valve assembly disposed within an infusion system to permit the administration of an infusion solution without the use of a needle, said bi-directional valve assembly is a two-way spring valve which comprises:
- a spring means, a valve port, and a valve plunger having a sealing means and a conduit means disposed thereabout, wherein said spring means is connected to said valve plunger in such a way as to permit the opening of said conduit means when said spring means is recoiled such that said sealing means is not in contact with said valve port and to permit the closing of said conduit means when said spring means is expanded such that said sealing means is in contact with said valve port;
whereby said bi-directional valve assembly is capable of opening and closing said infusion system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- a spring means, a valve port, and a valve plunger having a sealing means and a conduit means disposed thereabout, wherein said spring means is connected to said valve plunger in such a way as to permit the opening of said conduit means when said spring means is recoiled such that said sealing means is not in contact with said valve port and to permit the closing of said conduit means when said spring means is expanded such that said sealing means is in contact with said valve port;
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12. A bi-directional valve assembly disposed within nasogastric tubing or percutaneous endogastric tubing to enable the periodic removal of bodily fluids while preventing unimpeded discharge of said fluids, said bi-directional valve assembly is a two-way spring valve which comprises:
- a spring means, a valve port, and a valve plunger having a sealing means and a conduit means disposed thereabout, wherein said spring means is connected to said valve plunger in such a way as to permit the opening of said conduit means when said spring means is recoiled such that said sealing means is not in contact with said valve port and to permit the closing of said conduit means when said spring means is expanded such that said sealing means is in contact with said valve port;
whereby said bi-directional valve assembly is capable of opening and closing said nasogastric tubing or said percutaneous endogastric tubing. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
- a spring means, a valve port, and a valve plunger having a sealing means and a conduit means disposed thereabout, wherein said spring means is connected to said valve plunger in such a way as to permit the opening of said conduit means when said spring means is recoiled such that said sealing means is not in contact with said valve port and to permit the closing of said conduit means when said spring means is expanded such that said sealing means is in contact with said valve port;
Specification