06221045 is referenced by 196 patents and cites 96 patents.

An angiographic injector system includes a manifold and valve which selectively connects either a syringe pump or a low pressure system to a catheter which is inserted into a patient. The valve is normally biased to a state which connects the low pressure system to the catheter for pressure monitoring, saline flushing, or aspirating functions. When an injection is to be made, the valve automatically switches so that the low pressure system is disconnected and not exposed to high pressure, while the syringe pump is connected through the manifold to the catheter.

Title
Angiographic injector system with automatic high/low pressure switching
Application Number
8/957801
Publication Number
6221045 (B1)
Application Date
October 24, 1997
Publication Date
April 24, 2001
Inventor
Jiyan Liu
Roseville
MN, US
Robert F Wilson
Shoreview
MN, US
Thomas Paulson
Minneapolis
MN, US
Doug Duchon
Chanhassen
MN, US
Agent
Oppenheimer Wolff & Donnelly
US
Assignee
Acist Medical Systems
MN, US
IPC
A61M 1/00
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