Abstract: A pinch valve mechanism for use in a suction/irrigator device, wherein the device has a conduit for suction/irrigation. The pinch valve mechanism includes a first end having a first projection, a second end, operatively connected to the first end and a second projection. A spring means operatively connected to the second end, wherein the conduit is disposed between the first end and the second end such that the first projection and second projection are biased to pinch the conduit into a closed position. Compression of the spring means moves the first end away from the second end to move the conduit into an open position.