Intra-Aortic Device

Abstract

An intra-aortic device comprising a filter and a frame defining the shape of the filter, wherein the frame is intrinsically curved in a superior direction by a proximal superior bend and/or a distal superior bend, whereupon installation in an aorta, the frame flattens.

1 . An intra-aortic device comprising a filter and a frame defining the shape of the filter, wherein the frame is intrinsically curved in a superior direction by a proximal superior bend and/or a distal superior bend, whereupon installation in an aorta, the frame flattens. 
     
     
         2 . The device of  claim 1 , whereupon installation in an aorta, the frame bends inferiorly. 
     
     
         3 . The device of  claim 1 , wherein the filter is configured to span more than one artery branching from the aorta. 
     
     
         4 . The device of  claim 1 , wherein the frame is configured to be held in contact with both an ascending aorta and a descending aorta, simultaneously. 
     
     
         5 . The device of  claim 4 , wherein a superior face of the frame or filter is configured to contact a wall of the ascending aorta and/or a wall of the descending aorta. 
     
     
         6 . The device of  claim 1 , wherein the frame comprises one or more superior stabilizers or one or more inferior stabilizers. 
     
     
         7 . The device of  claim 6 , wherein the frame comprises a superior stabilizer, a front inferior stabilizer, and a back inferior stabilizer. 
     
     
         8 . The device of  claim 6 , wherein the superior stabilizer is attached to the frame at a front portion and a back portion of the frame. 
     
     
         9 . The device of  claim 6 , whereupon installation in an aorta, the superior stabilizer is configured to contact a distal wall of an innominate artery. 
     
     
         10 . The device of  claim 9 , whereupon installation in an aorta, the superior stabilizer is attached to the frame at a position proximal to the innominate artery. 
     
     
         11 . The device of  claim 6 , wherein the superior stabilizer comprises one or more intrinsic proximal bends. 
     
     
         12 . The device of  claim 11 , wherein the one or more intrinsic proximal bends are configured to optimize contact of the superior stabilizer with the proximal wall of the innominate artery. 
     
     
         13 . The device of  claim 11 , wherein the superior stabilizer comprises four intrinsic proximal bends 
     
     
         14 . The device of  claim 11 , wherein two intrinsic proximal bends define the front end and the back end of a transverse curve. 
     
     
         15 . The device of  claim 7 , whereupon installation in an aorta, the front inferior stabilizer and the back inferior stabilizer contact a wall of the aorta. 
     
     
         16 . The device of  claim 6 , whereupon installation in an aorta, the inferior stabilizers are attached to the frame at a position proximal to the ascending aorta. 
     
     
         17 . The device of  claim 7 , wherein the superior stabilizer is attached to the frame at a position distal to the attachment of the front inferior stabilizer or back inferior stabilizer. 
     
     
         18 . The device of  claim 1 , wherein the filter comprises a plurality of woven fibers. 
     
     
         19 . The device of  claim 1 , wherein the filter comprises pores having a median pore size of less than 5 mm. 
     
     
         20 . The device of  claim 1 , wherein the median pore size is less than 2 mm. 
     
     
         21 . The device of  claim 1 , wherein the frame, the filter, or the one or more stabilizers are nitinol. 
     
     
         22 . The device of  claim 1 , wherein the proximal end of the frame is connected to a catheter. 
     
     
         23 . The device of  claim 1 , wherein the frame is collapsible along a longitudinal axis. 
     
     
         24 . An intra-aortic device comprising a filter and a frame defining the shape of the filter, wherein the frame:
 a. intrinsically bends in a superior direction, and   b. is configured to bend in an inferior direction upon installation in an aorta.   
     
     
         25 . A method of preventing passage of an emboli from an aorta into an artery branching from the aorta comprising installing the device of  claim 1  in the aorta such that the filter flattens.