Patent ID: 8613717

Claim:
A method for removing an undesirable material comprising: maneuvering, within the vessel, a first cannula having a distal end, proximal end and a pathway extending therethrough, such that its distal end is positioned in a location for capturing the undesirable material from the vessel, the first cannula is reinforced with a sufficiently stiff material so as to optimize maneuverability within the vessel but does not collapse under suction force; positioning, within the vessel, a second cannula, in fluid communication with the first cannula, such that a distal end of the second cannula is situated in spaced relation to the distal end of the first cannula; providing a funnel situated at the distal end of the first cannula, and designed for deployment between a collapsed closed position and an expanded open position, the funnel when in the expanded position has a diameter measurably larger than that of the pathway of the first cannula; providing a filter device having an inlet port and outlet port, the inlet port is in fluid communication with the proximal end of the first cannula; providing a pump having in intake port and exit port, pump is capable of creating simultaneous negative pressure through the intake port and positive pressure through the exit port, pump is capable of creating suction force through the distal end of the first cannula so as to capture the undesirable material through the distal end of the first cannula, the pump intake port is in fluid communication with the outlet port of the filter device; and providing a powered fragmenting device so as to enhance removal of the undesirable material along the first cannula.