Intra-Aortic Device
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.