Mechanics of stretchable electronics on balloon catheter under extreme deformation

Yewang Su, Zhuangjian Liu, Shuodao Wang, Roozbeh Ghaffari, Dae Hyeong Kim, Keh Chih Hwang, John A. Rogers, Yonggang Huang*

*Corresponding author for this work

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Stretchable electronics has been applied to balloon catheters for high-efficacy ablation, with tactile sensing integrated on the surface, to establish full and conformal contact with the endocardial surface for elimination of the heart sink caused by blood flow around their surfaces. The balloon of the catheter folds into uniform 'clover' patterns driven by the pressure mismatch inside (∼vacuum) and outside of the balloon (pressure ∼1 atm). The balloon catheter, on which microelectrodes and interconnects are printed, undergoes extreme mechanical deformation during its inflation and deflation. An analytic solution is obtained for balloon catheter inflation and deflation, which gives analytically the distribution of curvatures and the maximum strain in the microelectrodes and interconnects. The analytic solution is validated by the finite element analysis. It also accounts for the effect of inflated radius, and is very useful to the optimal design of balloon catheter.

Original languageEnglish (US)
Pages (from-to)1555-1561
Number of pages7
JournalInternational Journal of Solids and Structures
Volume51
Issue number7-8
DOIs
StatePublished - Apr 1 2014

Fingerprint

Balloon
Catheters
Balloons
balloons
Mechanics
Extremes
Electronic equipment
Electronics
electronics
Deflation
Microelectrodes
Interconnect
Analytic Solution
Inflation
Ablation
blood flow
Blood Flow
sinks
ablation
Elimination

Keywords

  • Analytic model
  • Balloon catheter
  • Finite deformation
  • Stretchable electronics

ASJC Scopus subject areas

  • Modeling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Applied Mathematics

Cite this

Su, Yewang ; Liu, Zhuangjian ; Wang, Shuodao ; Ghaffari, Roozbeh ; Kim, Dae Hyeong ; Hwang, Keh Chih ; Rogers, John A. ; Huang, Yonggang. / Mechanics of stretchable electronics on balloon catheter under extreme deformation. In: International Journal of Solids and Structures. 2014 ; Vol. 51, No. 7-8. pp. 1555-1561.
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Mechanics of stretchable electronics on balloon catheter under extreme deformation. / Su, Yewang; Liu, Zhuangjian; Wang, Shuodao; Ghaffari, Roozbeh; Kim, Dae Hyeong; Hwang, Keh Chih; Rogers, John A.; Huang, Yonggang.

In: International Journal of Solids and Structures, Vol. 51, No. 7-8, 01.04.2014, p. 1555-1561.

Research output: Contribution to journalArticle

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AU - Liu, Zhuangjian

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AU - Hwang, Keh Chih

AU - Rogers, John A.

AU - Huang, Yonggang

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