Patent ID: 9034027
Filing Date: 2015-05-19
Classification: A61B,A61F

Abstract:
1. A stent graft for deployment into the aorta of a patient, the stent graft comprising a tubular body of a biocompatible graft material, the tubular body defining a main lumen therethrough, the tubular body comprising a proximal portion of a selected diameter, a portion of reduced diameter which is less than the selected diameter distal of the proximal portion, and a tapered portion extending between the proximal portion and the portion of reduced diameter, a plurality of low profile side arms in the portion of reduced diameter or the tapered portion, each low profile side arm comprising a respective side arm lumen therethrough and the main lumen being in fluid communication with the respective side arm lumens, the side arms each being intended, and so constructed and arranged, for connection of an arm extension to an aortic branch vessel, and a paraplegia prevention vent tube in fluid communication with the main lumen and open externally in a proximal direction to external of the tubular body in the region defined by the portion of reduced diameter and the tapered portion, wherein the paraplegia prevention vent tube is not intended to be connected to a side branch of the aorta but wherein the paraplegia prevention vent tube is intended, and is so constructed and arranged, to provide temporary perfusion to external of the stent graft after deployment of the stent graft into the aorta; and wherein the paraplegia prevention vent tube is intended and is so constructed and arranged to be subsequently blocked.