Development of cylinder shape probe for myocardial hardness measurement during heart surgery

Tsubasa Matsumoto, Tadao Matsunaga, Shintaro Katahira, Yoshikatsu Saiki, Yoichi Haga

Research output: Contribution to journalArticlepeer-review

Abstract

In heart surgery with extracorporeal circulation machine, myocardium becomes hard when myocardial preservation is not appropriate. Myocardial hardness measurement probe has been developed for quantitative hardness monitoring measurement for myocardial preservation. To measure myocardial hardness negative pressure is applied to the myocardium through the probe and displacement of myocardial surface is measured using ultrasonic pulse-echo. Using two silicone rubbers which have different hardness, we applied the same strength negative pressure to their surfaces. We measured the displacement of two silicone rubbers.

Original languageEnglish
Pages (from-to)O-448
JournalTransactions of Japanese Society for Medical and Biological Engineering
Volume52
DOIs
Publication statusPublished - 2014 Aug 17

Keywords

  • Heart surgery
  • Myocardial hardness
  • Negative pressure
  • Ultrasonic pulse-echo

ASJC Scopus subject areas

  • Biomedical Engineering

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