Patent ID: 8387655

Claim:
A device comprising: a frame configured to receive a flexible tube; a first pressure device coupled to the frame on a first side of the received flexible tube; and a second pressure device coupled to the frame on a second side of the received flexible tube, wherein the first pressure device applies a first amount of pressure to a first location on the flexible tube and the second pressure device applies a second amount of pressure to a second location on the flexible tube, when the device is in a flow mode, wherein the first pressure device applies a third amount of pressure to the first location on the flexible tube and the second pressure device applies a fourth amount of pressure to the second location on the flexible tube, when the device is in a non-flow mode, wherein the first and second pressure devices are rotatably coupled to first points on the frame, wherein the first and second pressure devices are coupled at second points on the frame, wherein each of the first and second pressure devices comprises a first arm, a pressure pad and a second arm, wherein the first arm is connected to the respective first point at a first end of the first arm and the pressure pad is mounted to the first arm at a second end of the first arm, wherein the second arm is mounted to the first arm at a first end of the second arm and is adjustably attached to the respective second point on the frame at a second end of the second arm.