Selective RF heating of resonant stent toward wireless endohyperthermia for restenosis inhibition

Yi Luo, Masoud Dahmardeh, Xing Chen, Kenichi Takahata

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper reports a novel active stent targeted at the application to endohyperthermia treatment for in-stent restenosis problems. The stainless-steel stent designed to function as an electrical inductor is integrated with a flexible capacitor strip to form a resonant circuit, which serves as a frequency-selective wireless heater controlled using a tuned radio-frequency (RF) magnetic field applied externally. The fabricated stent device with the initial diameter of 2 mm is expanded up to 6 mm in diameter inside an artificial artery using a balloon catheter. The expanded device is revealed to show efficient heat generation with temperature rise of >30°C when resonated using an RF power of 320 mW. Temporal and frequency characteristics are evaluated to demonstrate rapid heating ability with strong frequency sensitivity. These promising results validate the feasibility of wireless stent hyperthermia that potentially offers a novel therapeutic path to long-term inhibition and management of stent restenosis.

Original languageEnglish (US)
Title of host publicationMEMS 2014 - 27th IEEE International Conference on Micro Electro Mechanical Systems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages877-880
Number of pages4
ISBN (Print)9781479935086
DOIs
StatePublished - Jan 1 2014
Event27th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2014 - San Francisco, CA, United States
Duration: Jan 26 2014Jan 30 2014

Publication series

NameProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
ISSN (Print)1084-6999

Other

Other27th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2014
Country/TerritoryUnited States
CitySan Francisco, CA
Period1/26/141/30/14

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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