Artificial-esophagus with peristaltic motion using shape memory alloy

Hiroyuki Miki, Takeshi Okuyama, Shingo Kodaira, Yun Luo, Toshiyuki Takagi, Tomoyuki Yambe, Takeshi Sato

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)


Artificial esophagus of less invasive medical applications utilizing mechanical property of shape memory alloys (SMAs) with peristaltic motion is developed. The artificial-esophagus is composed of two SMA springs, polyvinyl chloride tube, and acrylic plate. The dynamic characteristics of an artificial-esophagus actuator are evaluated in terms of the food transport capacity. Closing pressure and the transport speed have sufficiently realized with human-like qualities. The possibility for fully self-contained artificial-esophagus using SMAs is discussed.

Original languageEnglish
Pages (from-to)705-711
Number of pages7
JournalInternational Journal of Applied Electromagnetics and Mechanics
Issue number1-2
Publication statusPublished - 2010


  • Artificial esophagus
  • actuator
  • peristaltic motion
  • shape memory alloy

ASJC Scopus subject areas

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


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