VENTING APPARATUS FOR EYE SURGERY

摘要

An irrigation/aspiration fluid system that includes a controller which can control an infusion valve and a vent valve. The infusion valve controls the flow of irrigation fluid through an infusion line. The system may also have a pump that creates a vacuum pressure in an aspiration line. By way of example, the infusion line and aspiration line may be coupled to a cornea. The vent valve can control the flow of fluid between the irrigation line and the aspiration line. The controller can control the valves in accordance with a vent routine. In the vent routine the controller switches the pump to an off state and then switches the infusion valve to a closed position. The controller then sequentially opens the vent valve and closes the vent valve to reduce the vacuum pressure in the aspiration line.