There is insufficient research on the physiological response to the novel stent grafts deployed during thoracic endovascular aortic repair (TEVAR), with no reliable way to measure it in vivo. This project aims to develop a simulated flow loop to mimic blood circulation throughan aorta affected by an aortic aneurysm, enabling real-time measurement of fluid pressure at the branching arteries of the aortic arch during TEVAR. Testing involved operating the flow loop while Dr. Barleben performed a simulated TEVAR surgery, monitoring fluid pressure in the branching arteries to assess the effects of the different stages of stent-graft deployment and stent-grafts. During a mock surgery performed by Dr. Barleben, the pressure in the aortic branches increased at one point, during the expansion of the stent graft, up to a maximum pressure of 204 ± 5 mmHg for a duration of about 10 seconds. Afterward and for the rest of the procedure, pressure was normal at 120/80 mmHg, so Dr. Barleben considered the experiment a success