System and method for proportional mixing and continuous delivery of fluids
First Claim
1. A system for mixing and delivering fluids, comprising:
- a first fluid source;
at least a second fluid source;
a first fluid line in fluid connection with the first fluid source;
at least a second fluid line in fluid connection with the at least second fluid source;
a pump having an inlet and an outlet; and
a mixing stopcock valve having a first input port, at least a second input port, an outlet port, and a stopcock actuator,wherein the first input port is in fluid communication with the first fluid line, the at least second input port is in fluid communication with the at least second fluid line, and the outlet port is in fluid communication with an inlet of the pump,wherein the stopcock actuator comprises an internal conduit defining a first conduit portion, a second conduit portion, and a third conduit portion of reduced diameter relative to the diameter of the first conduit portion, andwherein a positional change in the position of the stopcock actuator provides a change in the fluid mixture ratio of the first and at least second fluids delivered to a patient.
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Accused Products
Abstract
A system and method for mixing and delivering fluids such as contrast media and saline is disclosed including at least two fluid sources, a pump, a joining fluid path connecting the at least two fluid sources to an inlet to the pump, and a valve device in the fluid path upstream of the pump. The valve device includes an actuator adapted to restrict flow in at least one of respective fluid lines connecting the at least two fluid sources to the pump inlet. A patient interface device may be associated with an outlet of the pump. The valve device actuator is generally adapted to restrict the flow in at least one of the respective fluid lines such that a positional change in valve device actuator position provides a change in fluid mixture ratio of the fluids from the at least two fluid sources to the pump inlet.
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Citations
21 Claims
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1. A system for mixing and delivering fluids, comprising:
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a first fluid source; at least a second fluid source; a first fluid line in fluid connection with the first fluid source; at least a second fluid line in fluid connection with the at least second fluid source; a pump having an inlet and an outlet; and a mixing stopcock valve having a first input port, at least a second input port, an outlet port, and a stopcock actuator, wherein the first input port is in fluid communication with the first fluid line, the at least second input port is in fluid communication with the at least second fluid line, and the outlet port is in fluid communication with an inlet of the pump, wherein the stopcock actuator comprises an internal conduit defining a first conduit portion, a second conduit portion, and a third conduit portion of reduced diameter relative to the diameter of the first conduit portion, and wherein a positional change in the position of the stopcock actuator provides a change in the fluid mixture ratio of the first and at least second fluids delivered to a patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of mixing and delivering fluids from a first fluid source and at least a second fluid source using a fluid delivery system comprising a pump having an inlet and an outlet, and a mixing stopcock valve having a first input port, at least a second input port, an outlet port and a stopcock actuator comprising an internal conduit defining a first conduit portion, a second conduit portion, and a third conduit portion of reduced diameter relative to the diameter of the first conduit portion, and the method comprising:
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providing a first fluid line with a first end and a second end, and at least a second fluid line with a first end and a second end; connecting the first end of the first fluid line to the first fluid source, and the first end of the at least second fluid line to the at least second fluid source; connecting the second end of the first fluid line to the first input port of the mixing stopcock valve, and the second end of the at least second fluid line to the at least second input port of the mixing stopcock valve; connecting the outlet of the mixing stopcock valve to the inlet of the pump; and actuating the stopcock actuator such that a positional change in the position of the stopcock actuator provides a change in the fluid mixture ratio of the first and at least second fluids. - View Dependent Claims (19, 20, 21)
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Specification