Surgical flow restrictor and filter

摘要

A medical system that may include a filter/flow restrictor which limits the pressure drop within an aspiration system. The restrictor may include a flow restrictor that is coupled to a filter housing. The flow restrictor restricts the pressure drop within the aspiration system. The housing may contain a filter which prevents occlusion of the flow restrictor. When used in an opthtalmic procedure the flow restrictor may limit the minimum pressure within a cornea and prevent corneal collapse.