Intra-aortic emboli protection filter device

A method for protecting a patient against flow of emboli from an aorta to branching arteries, the method comprising:

• (a) providing a device comprising:
• a porous deflector screen comprising a filter shaped as a curved cylinder portion when the embolic protection device is in an expanded configuration, wherein the porous deflector screen is configured to expand and to conform to a wall of a aortic arch, covering entrances to arteries branching from the aorta, an emboli collector shaped as a cylinder when the embolic protection device is in the expanded configuration, wherein the emboli collector is configured to expand and to lie along walls of a descending aorta, pushing against walls of the descending aorta and anchoring the porous deflector screen, wherein the emboli collector comprises at least one elongated filter pocket having an opening directed towards the porous deflector screen, wherein:
• a concavity of the at least one elongated filter pocket is directed opposite to the opening, and when the embolic protection device is in the expanded configuration, the at least one elongated filter pocket spans at least partway a cylindrical volume, with a length of the at least one elongated filter pocket being along a height of the cylindrical volume, wherein the at least one elongated filter pocket comprises a plurality of elongated filter pockets disposed in parallel and a connecting portion for connecting the porous deflector screen and the emboli collector, configured to push the porous deflector screen against a superior wall of the aortic arch while anchoring against the emboli collector;
• (b) inserting the device via a catheter into the aorta, such that:
• said porous deflector screen is placed at the aortic arch, the filter of the porous deflector screen blocking exits to arteries branching off the aortic arch;
• said emboli collector is placed at the descending aorta and unfurled so a surface lies along walls of the descending aorta.