Angiographic fluid control system
First Claim
Patent Images
1. 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.
19 Assignments
0 Petitions
Accused Products
Abstract
An automated fluid control system for controlling fluid flow between a catheter, a saline supply, a contrast supply and an injector is disclosed. Pinch valves are provided in the saline input and output lines and contrast input and output lines. A controller is linked to the pinch valves to sequentially open and close the pinch valves during functions which include contrast injection and saline injection.
-
Citations
30 Claims
-
1. 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A fluid control system for controlling fluid flow between a catheter, a saline supply, a waste dump, a contrast supply and an injector, the fluid control system comprising:
-
a waste output line coupling the waste dump to the injector, the waste output line passing through a waste output pinch valve, the waste output line also passing through a one-way check valve that permits flow from the injector to the waste dump and not vice versa, a saline input line coupling the saline supply to the injector, the saline input line passing through a saline input pinch valve, the saline input line also passing through a one-way check valve that permits flow from the saline supply to the injector and not vice versa, a contrast input line coupling the contrast supply to the injector, the contrast input line passing through a contrast input pinch valve, the contrast input line also passing through a one-way check valve that permits flow from the contrast supply to the injector and not vice versa, a waste input line coupling the catheter to the injector, the waste input line passing through a waste input pinch valve, the waste input line also passing through a one-way check valve that permits flow from the catheter to the injector and not vice versa, a saline output line coupling the catheter to the injector, the saline output line passing through a saline output pinch valve, the saline output line also passing through a one-way check valve that permits flow from the injector to the catheter and not vice versa, a contrast output line coupling the catheter to the injector, the contrast output line passing through a contrast output pinch valve, the contrast output line also passing through a one-way check valve that permits flow from the injector to the catheter and not vice versa, a controller linked to each pinch valve for opening and closing the pinch valves, the controller comprising a memory with at least three stored functions including a contrast function, a saline function and a waste function, a control panel linked to the controller for switching the controller between the at least three stored functions, when switched to the contrast function, the controller closing the saline input and output pinch valves and the waste input and output pinch valves while first opening the contrast input pinch valve and subsequently opening the contrast output pinch valve, when switched to the saline function, the controller closing the contrast input and output pinch valves and the waste input and output pinch valves while first opening the saline input pinch valve and subsequently opening the saline output pinch valve, when switched to the waste function, the controller closing the contrast input and output pinch valves and the saline input and output pinch valves while first opening the waste input pinch valve and subsequently opening the waste output pinch valves. - View Dependent Claims (22, 23, 24, 25, 26, 27)
-
-
28. 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 closing the saline input and output pinch valves while subsequently opening the contrast input and output pinch valves, the controller closing the contrast input and output pinch valves while subsequently opening the saline input and output pinch valves. - View Dependent Claims (29)
-
-
30. A method for controlling fluid flow in an angiographic apparatus that includes a catheter, a saline supply, a waste dump, a contrast supply and an injector, and a waste output line coupling the waste dump to the injector, the waste output line passing through a waste output pinch valve, 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 waste input line coupling the catheter to the injector, the waste input line passing through a waste 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, the method comprising:
-
closing the saline input and output pinch valves and the waste input and output pinch valves while opening the contrast input pinch valve before withdrawing contrast from the contrast supply and into the injector before and opening the contrast output pinch valve and injecting contrast from the injector into the catheter, closing the contrast input and output pinch valves and the waste input and output pinch valves while opening the saline input valve, before withdrawing saline from the saline supply and into the injector before opening the saline output pinch valve and injecting saline from the injector into the catheter, closing the contrast input and output pinch valves and the saline input and output pinch valves while opening the waste input pinch valve before withdrawing waste from the catheter and into the injector before opening the waste output pinch valve and injecting waste from the injector into the waste dump, a waste output line coupling the waste dump to the injector, a saline input line coupling the saline supply to the injector, a contrast input line coupling the contrast supply to the injector, a waste input line coupling the catheter to the injector, a saline output line coupling the catheter to the injector, a contrast output line coupling the catheter to the injector, a controller closing the saline input and output lines and the waste input and output lines while opening the contrast input and output lines, means for closing the contrast input and output lines and the waste input and output lines while opening the saline input and output lines, the controller closing the contrast input and output lines and the saline input and output lines while opening the waste input and output lines.
-
Specification