05573515 is referenced by 152 patents and cites 29 patents.

An angiographic injector includes a syringe which is connected to a fluid reservoir through a valve which permits radiographic contrast material to be drawn from the reservoir into the syringe during a fill operation. The valve permits air to be expelled from the syringe through the valve during a purge operation, but blocks flow of contrast material from the syringe back to the fluid reservoir. During an injection, the valve blocks flow of contrast material back to the fluid reservoir while the contrast fluid is being delivered under pressure from the syringe to a patient.

Title
Self purging angiographic injector
Application Number
8/425577
Publication Number
5573515
Application Date
April 20, 1995
Publication Date
November 12, 1996
Inventor
Jiyan Liu
Roseville
MN, US
Robert F Wilson
Shoreview
MN, US
Agent
Kinney & Lange
Assignee
Invasatec
MN, US
IPC
A61M 5/315
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