Patent ID: 6579263
Filing Date: 2003-06-17
Classification: A61M

Abstract:
An apparatus for receipt and delivery of fluid for intravenous infusion into a patient in conjunction with an external syringe, said apparatus comprising:a filling section comprising a main body having a fluid receiving chamber and disposable in a first orientation for predetermined filling of the fluid receiving chamber with fluid from a supply of the fluid located external of said body and in a second orientation for delivery to the patient of fluid contained in the fluid receiving chamber, said main body further comprising a fluid inlet in communication with the receiving chamber, a fluid outlet in communication with the receiving chamber, an opening defined in said body for attachment of the external syringe which is selectively operable for drawing fluid from the fluid supply through said inlet to fill said receiving chamber through said inlet and for ejecting from said main body fluid contained in the receiving chamber through said fluid outlet, a gravity-operated first valve between said fluid inlet and said receiving chamber and located and configured so as to define a closed condition of said first valve that prevents fluid passage through said first valve in said second orientation of said main body and to define an open condition of said first valve that permits fluid passage through said first valve in said first orientation of said main body, and a spring-loaded one-way second valve between said receiving chamber and said fluid outlet; and a delivery section comprising an inline aspiration syringe selectively operable for confirming fluid delivery patency and having a delivery inlet and a delivery outlet, a first fluid conduit connected between said main body fluid outlet and said aspiration syringe delivery inlet, a check valve connected between said first fluid conduit and said main body fluid outlet for preventing return flow of fluid from said first conduit to said main body fluid outlet, and a second fluid conduit connected at one end to said aspiration syringe delivery outlet for intravenously delivering fluid to the patient; wherein operation of the loading syringe causes fluid contained in said receiving chamber of the main body to be ejected from said main body through said second valve and fluid outlet and to be delivered along said first conduit, into and through said aspiration syringe, and along said second conduit for intravenous infusion into the patient; and wherein said delivery section is disconnectable from said filling section for disposal of the delivery section after use of said delivery section for delivering fluid to the patient without contamination of the filling section so as to permit repeated uses of the filling section for subsequent delivery of fluid to additional patients.