Patent ID: 8480726

Claim:
A stent graft delivery device in combination with a stent graft, the stent graft comprising a tubular body of a biocompatible graft material defining a lumen therethrough, the tubular body comprising a side aperture and a valve arrangement associated with the tubular body to prevent fluid flow through the aperture from inside of the tubular body to outside of the tubular body, the stent graft delivery device comprising a distal end of the delivery device to remain outside a patient in use and a proximal end of the delivery device to be introduced into a patient in use, an arrangement to retain the stent graft on the stent craft delivery device adjacent to the proximal end of the delivery device, the distal end of the delivery device comprising a release wire mechanism and a release wire extending from the release wire mechanism towards and into the main lumen of the stent graft and engaging the valve arrangement to hold the valve arrangement away from the side aperture, whereby activation of the release wire mechanism retracts the release wire and releases the valve arrangement such that the valve arrangement closes off the side aperture.