Patent ID: 6638258
Filing Date: 2003-10-28
Classification: A61M,Y10T

Abstract:
A manifold for delivering liquids to a patient, comprising:(a) a housing having a liquid delivery port for communication with the patient and an injection port for connection to an injector; (b) first and second chambers defined in said housing in fluid communication with said liquid delivery and injection ports, the first and second chambers defining a flow path; and (c) a first one-way valve between said first and second chambers, biased toward a closed position, and constructed and arranged to move to an open position when liquid is forced from said second chamber to said first chamber; (d) a plurality of liquid supply ports operatively connected to said housing, said plurality of liquid supply ports each being connectable to a fluid source and said plurality of liquid supply ports in communication with said flow path and delivering liquid to said flow path; said plurality of liquid supply ports including at least one liquid supply port connected with said second chamber and having a second one-way valve biased toward a closed position, said second one-way valve is constructed and arranged to move to an open position when liquid is drawn into said second chamber through said liquid supply port by said injector while said first one-way valve is in a closed position such that no liquid is drawn into said first chamber.