Monthly Archives: March 2015

University of Arizona, UA Senior Design Program, Senior Design, Engineering 498
Project Title: Delivery of an Endovascular Device for a Bifurcating Vascular AnatomySDPM_0001_STBL

Team 1429 Members
Andrea Acuna, biomedical engineering
Sean Ashley, optical sciences and engineering
Matthew Davis, biomedical engineering
Matt Kirk, systems and industrial engineering
Marysol Luna, biomedical engineering
Carmelo Moraila, mechanical engineering

Sponsor: Jonathan Vande Geest, director of the UA Soft Tissue Biomechanics Laboratory

winner13Team 1429 is designing, fabricating and testing an endovascular device for the treatment of abdominal aortic aneurysm, known as AAA, which is an enlargement of the lower part of the aorta, a major blood vessel that runs from the heart through the center of the chest and abdomen. Treatments include open surgical repair and endovascular aortic repair, in which a stent graft is placed inside the aorta via a catheter to relieve pressure on the wall of the aorta.

As an alternative to the rigid metal mesh stents used to treat AAA, Jonathan Vande Geest, UA associate professor of aerospace and mechanical engineering and bioengineering, is working on a polymer that can be sprayed onto a 3-D printed construct taken from a CT scan of the patient’s aorta, which allows for the design of a flexible, patient-specific device.

“Currently, AAA is treated with rigid, metallic stent grafts that may not conform to the aorta of the patient,” Vande Geest said. “This leads to the exclusion of some patients who have an AAA that is anatomically complex and more difficult to treat.”

Although patients with AAA may show no symptoms, rupture of an abdominal aortic aneurysm can cause life-threatening internal bleeding. At least 13,000 deaths are attributed to AAA rupture in the United States every year.

University of Arizona, UA Senior Design Program, Senior Design, Engineering 498

Project Title: Building a Smarter Gridtep_logo

Team 1404 Members:
Jacob Chess, mechanical engineering
Peter Lankisch, electrical and computer engineering
Viviana Llano, optical sciences and engineering
Daniel McLeod, electrical and computer engineering
Alex Moser, electrical and computer engineering
Eric Sahr, systems and industrial engineering

Sponsor: Tucson Electric Power

winner3UA Engineering Design Team 1404 is designing an autonomous aircraft for Tucson Electric Power to inspect transmission lines that handle energy flow from power plants to major substations, ultimately powering customers’ homes and businesses.

The autonomous aircraft will be equipped with multiple sensors to monitor the structural health of the transmission lines and check for “hot spots” caused by bad connections.

“Currently, the transmission lines are inspected by renting a helicopter and sending a crew to fly along the transmission lines, tower by tower,” said team member Alex Moser. “This is very time consuming, inefficient and expensive. Our goal is to provide utilities with a commercial system that is more capable than those they now use.”