Patent ID: 8257383
Filing Date: 2012-09-04
Classification: A61B,A61M

Abstract:
1. A method comprising: introducing a catheter between first and second layers of a wall of a body lumen, the first layer being radially outward of the second layer, said catheter including a conically shaped balloon disposed at a distal end thereof, the balloon including a proximal tapered portion tapering radially outward in a distal direction from a proximal balloon neck of the balloon to an outermost radial extent of the balloon, 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, and wherein the distal end of said catheter does not protrude distally beyond said balloon; and expanding said balloon between the first and second layers, such that an inner surface of the first layer contacts the balloon along the proximal tapered portion, and wherein expanding the balloon causes a distal portion of said first lumen that passes through said balloon to bend with respect to a portion of said first lumen proximal to said balloon such that the distal portion of said first lumen is directed towards said body lumen.