A polyurethane-based Shape Memory Polymer was used to develop a surgical stent. Polymer tubes were extruded and trained to transform into a coil upon reaching a temperature of 37C. The optimum training conditions to obtain maximum recovery consisted of transforming the tube to a coil at 45? and heat setting it at 90C for 75 seconds. This stent offers several advantages over conventional metallic stents used in cardiovascular surgeries and additional tests are required to determine its efficacy.

• This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.

Creator

• Arita, Akiko

Publisher

• Worcester Polytechnic Institute

Identifier

• 99D087M

Advisor

• Shivkumar, Satya

Year

• 1999

Date created

• 1999-01-01

Resource type

• Major Qualifying Project

Major

• Biomedical Engineering

Rights statement

• In Copyright