DEVICE AND METHOD FOR VASCULAR FILTER

1 . An intra-vascular device to prevent a particle in the aorta from passing into a second blood vessel, said device comprising;

a substantially planar filter; and

at least one bow extending downwards from a horizontal plane of said filter; wherein said filter is suitable to be held in contact with both an ascending and a descending aorta and at least one of said bows extending downward is configured to contact a medial surface of the ascending or descending aorta.

2 . The device as in claim 1 , wherein said bows are comprised of continuous wire.

3 . The device as in claim 1 , wherein the distal and proximal ends of said device bend downwards from the lateral plane.

4 . The device as in claim 1 , wherein said device further comprises a frame and said filter is affixed to said frame by adhesive.

5 . The device as in claim 1 , said filter having a plurality of woven fibers.

6 . The device as in claim 5 , said plurality of woven fibers comprising at least one continuous fiber.

7 . The device as in claim 1 , wherein said filter comprises a mesh.

8 . The device as in claim 5 , wherein said device further comprises a frame and said weave of said filter is affixed to said frame at an angle other than a right angle.

9 . The device as in claim 1 , wherein said filter is capable of being contracted during implantation and expanded upon deployment.

10 . The device as in claim 1 , comprising a clasp to connect said device to a delivery cable, and wherein upon said connection, said device is rotated clockwise upon a clockwise rotation of said delivery cable, and is rotated counterclockwise upon a counterclockwise rotation of said delivery cable.

11 . The device as in claim 1 , comprising a releasable clasp to connect said device to a delivery cable;

wherein said releasable clasp comprises the combination of a male and female clasp.

12 . A method of preventing passage of a particle from an aorta into a carotid artery comprising deploying the device of claim 1 in said aorta such that:

(i) said one or more bows configured to extend downward of said deployed device contacts a medial surface of the ascending or descending aorta;

(ii) said frame of said deployed device contacts both the ascending aorta and descending aorta;

wherein said contacting holds said filter in the lumen of said aorta; and

wherein said deployment of said device prevents passage of particles from said aorta into said carotid artery.

13 . The method of claim 12 , wherein said contacting holds said filter in the lumen of said aorta away from the orifices of vascular branches of said aorta.