SOLID-STATE MICRO SENSORS FOR AUTOMATIC CONTROL SYSTEM OF LHAD.

Akinori Takahashi, S. Nitta, Y. Katahira, M. Tanaka, Y. Kagawa, T. Hongo, T. Hariuchi, K. Takahashi, Masayoshi Esashi, T. Matsuo

Research output: Contribution to journalConference article

Abstract

The authors have been engaged in the development and in vivo and in vitro evaluations of an automatic control system for a left heart assist device with solid state micro sensors (pH, pO//2, pCO//2 and blood pressure). The blood contacting surface is coated with an antithrombogenic material for long-term institution in the circulation. The objectives of the current investigation were to study the effects of the thickness of the coating materials on the sensitivity characteristics of the sensors. In animal experiments, results indicate that the pressure sensors operated well with little sensitivity drop, however, the pH and CO//2 sensors revealed an approximately 50% drop in sensitivity - but within 10% in PHEMA.

Original languageEnglish
Pages (from-to)412-413
Number of pages2
JournalJapanese Journal of Medical Electronics and Biological Engineering
Volume22
Publication statusPublished - 1984 Apr 1

ASJC Scopus subject areas

  • Biomedical Engineering

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    Takahashi, A., Nitta, S., Katahira, Y., Tanaka, M., Kagawa, Y., Hongo, T., Hariuchi, T., Takahashi, K., Esashi, M., & Matsuo, T. (1984). SOLID-STATE MICRO SENSORS FOR AUTOMATIC CONTROL SYSTEM OF LHAD. Japanese Journal of Medical Electronics and Biological Engineering, 22, 412-413.