System and method for high pressure delivery of gas-supersaturated fluids
First Claim
1. A flow delivery assembly, comprising:
- a manifold, which includes;
an input port adapted for connection to a cylinder containing a gas-supersaturated fluid; and
a control valve operatively connected to the manifold and in fluid communication with the input port, wherein the control valve has;
an output port adapted for connection to a system fluid delivery device for delivering a fluid to a delivery site, anda first open position for providing a flow of the gas-supersaturated fluid from a flush fluid source to the delivery site, and a closed position for preventing the flow of the gas-supersaturated fluid from the cylinder or the flush fluid from the flush fluid source to the delivery site,wherein the manifold is capable of regulating flow of the gas-supersaturated fluid and monitoring the hydrostatic pressure of the cylinder.
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Abstract
A system and method for generating a gas-supersaturated fluid and delivering the fluid at high delivery pressures to thereby prevent bubble nucleation is disclosed. The system comprises a housing for containing a removable fluid assembly for housing a fluid to be gas-supersaturated and a drive assembly for delivering the fluid to a delivery site. The housing assembly comprises a cylinder and a piston which may be advanced along the inner surface of the cylinder to pressurize and to deliver the fluid. To generate a gas-supersaturated fluid, the housing assembly is removed from the system housing, filled with a fluid, and gas is introduced at or slightly above the desired gas partial pressure into the cylinder. To deliver the gas-supersaturated fluid, the fluid assembly is returned to the system housing and the drive assembly advances the piston to increase the hydrostatic pressure to the desired delivery pressure and, after opening a valve, to deliver the gas-supersaturated fluid at the desired high delivery pressure to a delivery site.
46 Citations
10 Claims
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1. A flow delivery assembly, comprising:
a manifold, which includes; an input port adapted for connection to a cylinder containing a gas-supersaturated fluid; and a control valve operatively connected to the manifold and in fluid communication with the input port, wherein the control valve has; an output port adapted for connection to a system fluid delivery device for delivering a fluid to a delivery site, and a first open position for providing a flow of the gas-supersaturated fluid from a flush fluid source to the delivery site, and a closed position for preventing the flow of the gas-supersaturated fluid from the cylinder or the flush fluid from the flush fluid source to the delivery site, wherein the manifold is capable of regulating flow of the gas-supersaturated fluid and monitoring the hydrostatic pressure of the cylinder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
Specification
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- Resources
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Current AssigneeTherOx Incorporated (Asahi Kasei Corporation)
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Original AssigneeTherOx Incorporated (Asahi Kasei Corporation)
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InventorsGessert, James M., Daoud, Adib G.
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Primary Examiner(s)Lucchesi; Nicholas D
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Assistant Examiner(s)HOLLOWAY, IAN KNOBEL
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Application NumberUS11/460,474Publication NumberTime in Patent Office1,258 DaysField of Search604/26, 604/509, 604/24, 604/264US Class Current604/26CPC Class CodesA61M 1/32 Oxygenators without membranesA61M 2202/0476 Oxygenated solutions
