ANGIOGRAPHIC INJECTOR SYSTEM WITH MULTIPLE PROCESSOR REDUNDANCY

WIPO Patent Application WO1999024095

A3

An angiographic injector system and a method of controllably delivering medical fluid to a patient from an angiographic injector system are disclosed. A multiple processor control system is used to actively control the injection process and to monitor sensed functions of the system. The multiple processors provide dual redundancy safety circuits for critical control functions such as syringe motor drive speed and current. A motor/servo-amplifier nested control function is also disclosed. A unique method and apparatus are disclosed for establishing injection parameter default values just prior to an injection procedure that are based on physiological values of the patient to be treated. The injector system uses an interactive display panel that presents sequenced set-up screens to the user and which enables the user to select injection procedures, parameters and other modes of operations directly through the interactive panel.

DUCHON DOUG J (US)
SMITH JAMES P (US)
ANDERSON KATHERINE H (US)
WILSON ROBERT F (US)
LUI JIYAN (US)

PCT/US1998/023736

August 19, 1999

November 05, 1998

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INVASATEC INC (US)
DUCHON DOUG J (US)
SMITH JAMES P (US)
ANDERSON KATHERINE H (US)
WILSON ROBERT F (US)
LUI JIYAN (US)

A61M5/178; A61B6/00; A61M5/145; A61M5/168; A61M5/172; A61M5/00; (IPC1-7): A61M5/172

WO1996032887A1	1996-10-24
WO1996020745A1	1996-07-11

EP0384155A2	1990-08-29
US4624661A	1986-11-25
US4908017A	1990-03-13

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