In-vitro Thoracic Stent Graft Migration on a Mock Circulation Loop

Abstract

Thoracic Endovascular aneurysm repair (TEVAR) has developed into a mainstream surgical option for the management of thoracic aortic aneurysm This operation is using stent graft to implant in the aneurysm site and the blood would flow in the stent graft to keep the aneurysm from rupture The type I endoleak caused by migration of stent graft is still the serious complication for patient who under TEVAR Stent graft oversize is the important factor which is defined as the percentage of how much stent graft diameter is larger than the inner or outer aortic wall diameter and another factor is the material of stent graft This thesis would discuss different oversize stent grafts on an in-vitro mock circulation loop system which can simulate human’s pulsate flow and doing stent graft pullout force test The friction force would be obtained and evaluate the performance of stent graft under different diameter (oversize)

Date of Award	2014 Jul 24
Original language	English
Supervisor	Chung-Dann Kan (Supervisor)