Intravascular device

An intravascular device having a relaxed expanded configuration, comprising:

• an expandable body having an expanded configuration and a contracted configuration, said expandable body in said expanded configuration having a convex curved shape having a base and walls, said expandable body comprises a proximal end, and a distal end, wherein said base is disposed at said proximal end, and said walls extend distally from said base;
• a support which provides a double layer to at least a portion of said expandable body, wherein said walls have said double layer,
• and
• a connector disposed at said proximal end of said expandable body and connecting proximal ends of said walls, wherein distal ends of said walls are not connected,
• wherein in the relaxed expanded configuration a cross section of said walls increases along a length of said walls.