Patent ID: 9724218
Date: 2017-08-08
CPC Classifications: A61F,A61L,A61M,Y10T

Claim:
1. A system for treating a bifurcation, the system comprising: a first delivery catheter comprising a first elongate shaft with proximal and distal ends, and a first expandable member adjacent the distal end of the first elongate shaft; and a second delivery catheter comprising a second elongate shaft with proximal and distal ends, a second expandable member adjacent the distal end of the second elongate shaft, and a radially expandable stent disposed over the second expandable member, wherein the stent comprises a sidewall having a side hole therethrough; and wherein the stent has a collapsed configuration suitable for delivery to the bifurcation, an expanded configuration in which the stent is configured to support a wall of a main branch of the bifurcation and a wall of a side branch of the bifurcation, a proximal end, and a proximal portion extending along a proximal portion length from the proximal end to the side hole in the collapsed configuration; and wherein a first portion of the first elongate shaft is disposed under a proximal portion of the stent, and the first elongate shaft passes through the side hole so that a second portion of the first elongate shaft is disposed over a distal portion of the stent and the first expandable member is axially spaced apart from the second expandable member such that the first expandable member is distal to the second expandable member for concurrent advancement of the first and second delivery catheters to the bifurcation, wherein the first elongate shaft is axially slidable relative to the second elongate shaft while the stent is in the collapsed configuration, and wherein the first expandable member includes a proximal working portion and a distal working portion, the proximal working portion having a length greater than the proximal portion length of the stent in the collapsed configuration, the distal working portion having a length sufficient so that the distal working portion extends into the main branch distal to the side branch when a proximal end of the proximal working portion is positioned proximal to the proximal end of the stent in the collapsed configuration.