Patent ID: 8437835

Claim:
A contrast media injection system, comprising: an injection head having at least one piston drive mechanism, and a control unit, having a display screen, connected to the injection head, said control unit comprising; screen displaying part for producing a condition screen with its vertical axis representing an injection rate of liquid and its horizontal axis representing an injection time period of the liquid; condition entering part for accepting an input action, by an operator, for at least one injection condition including an injection rate of the liquid relative to the injection time period; condition storing part for storing the entered injection condition; image producing part for producing a condition-image icon having a horizontal width corresponding to the injection time period, wherein the icon has a first end and a second end; image displaying part for displaying the condition-image icon in the condition screen on the display screen, at a vertical position in association with the injection rate and at a horizontal position in association with the injection time period; and wherein the condition entering part is configured to accept (i) an input action for moving the icon upward or downward to thereby change the injection rate, or to accept (ii) an input action for increasing or decreasing the horizontal width of the icon thereby increasing or decreasing the injection time period.