Apparatus and Methods for Clot Aspiration With Revolving Asymmetric Aspiration Zone

A system for removing clot from a blood vessel, said system comprising:

• an aspiration catheter body having a clot-extraction lumen extending from a proximal end to an open distal region, wherein the proximal end is configured to be coupled to a vacuum source and the open distal region has a central axis therethrough;
• a substantially solid disc structure disposed transversely across at least a portion of the open distal region, said disc structure configured to define a flow-blocked zone and an open aspiration zone through the open distal region;
• and
• a driver configured to rotate and revolve the disc structure about the central axis to cause the open aspiration zone to travel in an orbital path about the central axis of the open distal region;
• wherein applying a negative pressure to the proximal end of the clot-extraction lumen draws a flow of clot through the open aspiration zone and into the clot-extraction lumen.