Bifurcated stent and delivery system

摘要

A delivery system has a stent and a balloon. The stent has a first section made of a plurality of interconnected framework members which define a plurality of potential side branches. The balloon is a dual lumen balloon that can inflate from the proximal end to the distal end with a plurality of protrusions and/or herniations.

主权项

1. A catheter assembly comprising:
a catheter, the catheter comprising:
an inner shaft, the inner shaft defining an inner inflation lumen;an outer shaft, the outer shaft disposed about the inner shaft, the outer shaft defining an outer inflation lumen;a dual lumen balloon, the dual lumen balloon comprising:
an inner balloon, the inner balloon being made of non-compliant polymeric material, the inner balloon being in fluid communication with the inner inflation lumen;an outer balloon, the outer balloon being disposed about and coextensive with the inner balloon, the entire outer balloon being made of a compliant polymeric material so that the entire balloon is compliant, the outer balloon being in fluid communication with the outer inflation lumen,the dual lumen balloon having an unexpanded state when both the inner balloon and the outer balloon are uninflated; anda stent, the stent disposed about the dual lumen balloon, the stent having a unexpanded state with an unexpanded diameter for delivery to an implantation site, the stent being radially expandable from the unexpanded state, the stent being in the unexpanded state when the dual lumen balloon is in the unexpanded state.