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Shape memory polymers for medical applications

Publication ,  Conference
Liu, Y; Gall, K; Dunn, ML; McCluskey, P; Shandas, R
Published in: Medical Device Materials - Proceedings of the Materials and Processes for Medical Devices Conference 2003
December 1, 2003

We present new results on the thermomechanical packaging and recovery behavior of shape memory polymers (SMPs) for medical applications. SMPs possess the ability to store and recover large strains by the application of a prescribed thermomechanical cycle. The typical protocol is to apply a specified initial deformation at an elevated temperature, cool the pre-deformed material under constraint to a lower temperature where the shape is fixed (storage), and then heat the material to recover the original shape (recovery). Of particular interest to the medical community is triggering shape recovery at the body temperature with variable polymer stiffness and recoverable force levels that can be tailored depending on the application. Shape recovery at the body temperature admits the deployment of complex packaged shapes into the body environment without local heating. We present the result of various investigations to tailor the stiffness and recovery behavior of SMP materials. The alteration of the packaging temperatures and cooling/heating rates emerge as key variables to tailor the recovery behavior of SMP materials. We present some preliminary studies for medical devices and also outline plans for future research.

Duke Scholars

Ken Gall
Author Ken Gall Thomas Lord Department of Mechanical Engineering and Materia ...

Published In

Medical Device Materials - Proceedings of the Materials and Processes for Medical Devices Conference 2003

Publication Date

December 1, 2003

Start / End Page

506 / 511
 

Citation

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Liu, Y., Gall, K., Dunn, M. L., McCluskey, P., & Shandas, R. (2003). Shape memory polymers for medical applications. In Medical Device Materials - Proceedings of the Materials and Processes for Medical Devices Conference 2003 (pp. 506–511).
Liu, Y., K. Gall, M. L. Dunn, P. McCluskey, and R. Shandas. “Shape memory polymers for medical applications.” In Medical Device Materials - Proceedings of the Materials and Processes for Medical Devices Conference 2003, 506–11, 2003.
Liu Y, Gall K, Dunn ML, McCluskey P, Shandas R. Shape memory polymers for medical applications. In: Medical Device Materials - Proceedings of the Materials and Processes for Medical Devices Conference 2003. 2003. p. 506–11.
Liu, Y., et al. “Shape memory polymers for medical applications.” Medical Device Materials - Proceedings of the Materials and Processes for Medical Devices Conference 2003, 2003, pp. 506–11.
Liu Y, Gall K, Dunn ML, McCluskey P, Shandas R. Shape memory polymers for medical applications. Medical Device Materials - Proceedings of the Materials and Processes for Medical Devices Conference 2003. 2003. p. 506–511.

Published In

Medical Device Materials - Proceedings of the Materials and Processes for Medical Devices Conference 2003

Publication Date

December 1, 2003

Start / End Page

506 / 511