A polyurethane-based shape memory polymer was used to produce a hollow surgical stent. A straight tube was initially extruded and then trained by heat treatment to transform into a coil of the desired diameter when heated above the glass transition temperature. The results indicated that small lumen diameter yielded better shape recovery.
Worcester Polytechnic Institute
Major Qualifying Project
Access to this report is limited to members of the WPI community. Please contact a project advisor or their department to request access
Restricted-WPI community only