초록 ▼

An infusion pump is disclosed in which a canister of compressed gas is regulated to provide a continuous source of pressure to one or more compressible fluid sources. Valves on the outlets of the sources prevent fluid from escaping except when the valves are opened. The valves are opened by solenoid

An infusion pump is disclosed in which a canister of compressed gas is regulated to provide a continuous source of pressure to one or more compressible fluid sources. Valves on the outlets of the sources prevent fluid from escaping except when the valves are opened. The valves are opened by solenoids which are selectively activated to open the valves.

대표청구항 ▼

A multiple fluid infusion pump comprising: a source of continuous pressure; a plurality of compressible fluid sources each having an opening out through which fluid may flow; means for directing pressure from said pressure source to said plurality of compressible fluid sources so as to continuously

A multiple fluid infusion pump comprising: a source of continuous pressure; a plurality of compressible fluid sources each having an opening out through which fluid may flow; means for directing pressure from said pressure source to said plurality of compressible fluid sources so as to continuously subject each fluid source to continuous pressure which urges fluid through the openings of said fluid sources; a valve coupled to the opening in each of said plurality of fluid sources for controlling the flow of fluid from said source by preventing fluid flow when closed and allowing fluid flow when open, said valve including: a housing having a passageway for fluid flow; a sealing member slidably mounted within said passageway; spring means for pushing said sealing member within said passageway to close off fluid flow through said valve; means for moving said sealing member against the action of said spring means to open fluid flow through said valve; and flow restrictor means within said passageway to accurately limit the flow of fluid through said valve when said valve is open; a multilumen adapter for receiving the fluid flow from each of said fluid sources through their respective valves and for separately feeding each fluid into one of a plurality of lumens in a multilumen catheter; electromechanical means connected to each of said valves for opening and closing its respective valves; and control means coupled to each of said electromechanical means for selectively activating said electromechanical means.