The fluid delivery system includes a pressurizing device for delivering injection fluid under pressure, a low pressure fluid delivery system, and a pressure isolation mechanism. The pressure isolation mechanism includes a first lumen associated with the pressurizing device, a second lumen associated with the low pressure fluid delivery system, and a pressure isolation port. The first valve is in a normally open position permitting fluid communication between the first lumen and the second lumen and movable to a closed position when fluid pressure in the first lumen reaches a predetermined pressure level. The first valve isolates the pressure isolation port from the first lumen in the closed position. A second valve is associated with the second lumen and regulates fluid flow through the second lumen. The second valve may be a disk valve defining one or more passageways in the form of slits through the body of the disk valve.

Title
Fluid Delivery System, Fluid Path Set, and Pressure Isolation Mechanism with Hemodynamic Pressure Dampening Correction
Application Number
12/975531
Publication Number
20110092828
Application Date
December 22, 2010
Publication Date
April 21, 2011
Inventor
James A Dedig
Pittsburgh
PA, US
Herbert M Grubic
Pittsburgh
PA, US
John F Kalafut
Pittsburgh
PA, US
Anthony S McCoppin
Evans City
PA, US
John A Haury
Sewickley
PA, US
Michael A Spohn
Butler
PA, US
IPC
A61B 05/235
A61M 05/00
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