3701345 is referenced by 241 patents and cites 6 patents.

An angiographic injector control system for delivering a controlled volume of injection fluid is described. The injector has a motor driven piston for ejecting fluid from a syringe cartridge contained within a pressure jacket. The drive motor is operated in accordance with a command voltage corresponding to an incremental position of the injector piston, the command position signal also corresponding to the volume of fluid to be ejected from the cartridge. This command position voltage signal is compared to an actual position voltage to produce an error signal for operating the drive motor, whereby the syringe piston follows the position command signal. Volume selector means produce a volume signal corresponding to a desired maximum volume of fluid to be ejected; this volume signal is compared to the sum of the position command increments, producing a stop signal when the position command signal equals or exceeds the volume limit signal. Thus, the injector control system regulates the injection of fluid by sensing and controlling the position of the injector piston.

Title
Angiographic injector equipment
Application Number
05/076,491
Publication Number
3701345
Application Date
September 29, 1970
Publication Date
October 31, 1972
Inventor
Jones Donald
Kranys Rudolph J
Heilman Marlin S
Assignee
Medrad
IPC
A61m 05/20
A61m 05/00
A61b 06/00
G05D 07/06
B01L 03/02
A61M 05/145
A61M 05/168
A61M 05/172
A61B 06/00
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