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US 6,638,258 B2Granted
Automatic manifold for vascular catheter
AssigneeMayo Foundation for Medical Education and Research
InventorsRobert S. Schwartz, David R. Holmes, David Berry, Donald G. Ellis
Life of this patent
Estimating the term…
Abstract
An automatic manifold for a catheter assembly. Valve means automatically open and close flow between a liquid supply port for connection to injection means and a liquid delivery port for communication with the catheter assembly. A pressure sensor is integrated into the manifold. The manifold also includes a quick-disconnect coupling mechanism for a liquid supply port.
Claims15
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.
3 more elements
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 liquid supply part operatively connected to said housing, said liquid supply port being connectable to a fluid source and in communication with said flow path and delivering liquid to said flow path;
- said 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 being 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.
3 more elements
Dependencies are inferred from the claim text.