Patent ID: 8257382

Claim:
A device comprising: a catheter comprising a conically shaped balloon disposed at a distal end thereof, said catheter being formed with a first lumen through said balloon for passing therethrough a guidewire and a second lumen for inflation and deflation of said balloon, said catheter and said balloon being sized and shaped for entry between two layers of a wall of a body lumen, wherein a proximal portion of the balloon tapers radially outward in a distal direction from a proximal balloon neck of the balloon to an outermost radial extent of the balloon and a distal portion of the balloon tapers radially outward in a proximal direction from a distal balloon neck of the balloon to the outermost radial extent of the balloon, wherein the proximal portion has a first length and the distal portion has a second length, wherein the first length is longer than the second length and the first length is smaller than a maximum diameter of said balloon, wherein upon expansion of said balloon when placed between said layers, a distal portion of said first lumen that passes through said balloon is automatically bent with respect to a portion of said first lumen proximal to said balloon and is directed towards said body lumen, wherein the distal end of said catheter does not protrude distally beyond said balloon.