Catheters for Thrombosis Sample Exfoliation in Blood Vessels Using Piezoelectric Polymer Fibers

Catheters for Thrombosis Sample Exfoliation in Blood Vessels Using Piezoelectric Polymer Fibers 

Smart Structures and Materials Laboratory, Departinent of Electrical Engineering, Graduate School of Engineering, Kansai University, Japan 

However, the practical application of these piezoelectric polymers is limited, because the piezoelectric constant of a ferroelectric polymer membrane is lower than that of inorganic piezoelectric materials [1-5]. Also, ferroelectric polymers such as PVDF 

Biomedical Applications of Electroactive Polymer Actuators Edited by Federico Carpi and Elisabeth Smela 2009 John Wiley Sons Ltd. ISBN 978-0-470-77305-5 

In this chapter, we focus on a PLLA fiber that is a model chiral polymer fiber, and report on the measurement of its basic piezoelectric characteristics under the application of DC and AC voltages. Finally, from the results, as one example of a proposed application model in biomedical engineering [7], it was shown that a PLLA fiber can remove objects such as an electric control catheter and tweezers. 

---