Patent ID: 7258681

Claim:
A fluid control system for controlling fluid flow between a catheter, a saline supply, a contrast supply and an injector, the fluid control system comprising: a saline input line coupling the saline supply to the injector, the saline input line passing through a saline input pinch valve, a contrast input line coupling the contrast supply to the injector, the contrast input line passing through a contrast input pinch valve, a saline output line coupling the catheter to the injector, the saline output line passing through a saline output pinch valve, a contrast output line coupling the catheter to the injector, the contrast output line passing through a contrast output pinch valve, a controller for opening and closing the pinch valves, the controller comprising a memory with at least two stored functions including a contrast function and a saline function, when switched to the contrast function, the controller closing the saline input and output pinch valves while opening the contrast input and output pinch valves, when switched to the saline function, the controller closing the contrast input and output pinch valves while opening the saline input and output pinch valves.