Patent ID: 6520988
Filing Date: 2003-02-18
Classification: A61F

Abstract:
An endolumenal medical device assembly for engaging an interior surface of a body lumen wall at a bifurcation region of a body lumen, the bifurcation region including at least a first and a second branch lumen each having an entrance zone extending from a common branch lumen, comprising:an expandable prosthesis having an elongate prosthesis body with a proximal end portion, a distal end portion, a length along a longitudinal axis extending between the proximal and distal end portions, a prosthesis passageway which extends along the length, and a plurality of side ports positioned along the length and through which the prosthesis passageway communicates externally of the elongate prosthesis body, the expandable prosthesis further being adjustable from a radially collapsed condition, wherein the elongate prosthesis body has a collapsed outer diameter, to a radially expanded condition, wherein the elongate prosthesis body has an expanded outer diameter which is larger than the collapsed outer diameter; a delivery member having a proximal end portion and a distal end portion which is coupled to the expandable prosthesis, the delivery member being adapted to deliver the expandable prosthesis to the bifurcation region in a percutaneous translumenal procedure by manipulating the proximal end portion of the delivery member; an expansion member with a proximal end portion and a distal end portion which is removably engaged with the elongate prosthesis body and adapted to be delivered by the delivery member, the distal end portion of the expansion member further being adapted to adjust the expandable prosthesis from the radially collapsed condition to the radially expanded condition when the elongate prosthesis body is engaged with the expansion member and is positioned at the bifurcation region; and a dilator with a proximal end portion and a distal end portion which is engaged within the prosthesis passageway and also within a selected one of the plurality of side ports when the expandable prosthesis is in the radially collapsed condition, wherein the distal end portion of the dilator is adjustable from a first dilator position, wherein the selected one of the plurality of side ports has an initial inner diameter, to a second dilator position, wherein the selected one of the plurality of side ports is dilated to an expanded inner diameter which is larger than the initial inner diameter.