Apparatus and method for treatment of post thrombotic syndrome

A medical apparatus, comprising:

• a sheath having a sheath distal end and a sheath lumen, the sheath movable between an initial extended sheath position and a retracted sheath position;
• and
• a thrombectomy device, the thrombectomy device disposed in the sheath lumen, the thrombectomy device including:
• a first elongate cannula having a proximal end, a distal end having a distal tip, a guidewire lumen, and a perforated region, the perforated region having a plurality of perforations in fluid communication with the guidewire lumen, the perforated region proximal to the distal tip;
• a second elongate cannula having a second proximal end, a second distal end, a second lumen, and a mechanical thrombectomy whisk, the first elongate cannula disposed in the second lumen, the mechanical thrombectomy whisk proximal to the distal tip, the second elongate cannula configured to rotate;
• a third elongate cannula having a third exterior surface, a third proximal end, a third distal end, a third lumen, and an expandable embolic filter connected to the third exterior surface, the second elongate cannula disposed in the third lumen;
• and
• a fourth elongate cannula having a fourth exterior surface, a fourth proximal end, a fourth distal end, a fourth lumen, an inflation passageway, and an inflatable balloon connected to the fourth exterior surface, the third elongate cannula disposed in the fourth lumen, the inflatable balloon in fluid communication with the inflation passageway,
• wherein the expandable embolic filter has a filter distalmost edge, and the third distal end of the third elongate cannula terminates proximally of the filter distalmost edge at least when the sheath is in the initial extended sheath position, such that the expandable embolic filter at least partially covers the mechanical thrombectomy whisk.