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1992 Fiscal Year Final Research Report Summary

Development of a reduced energy type implantable defibrillator.

Research Project

Project/Area Number 03650320
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 電子機器工学
Research InstitutionNiigata University

Principal Investigator

MAKINO Hideo  Niigata University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (80115071)

Co-Investigator(Kenkyū-buntansha) ISHII Ikuo  Niigata University, Faculty of Engineering, Professor, 工学部, 教授 (80018481)
Project Period (FY) 1991 – 1992
KeywordsImplantable defibrillator / Cardiomyoplasty / Arrhythmia detection / Interval histogram
Research Abstract

In 1992, the research was focused on the basic animal experiments. In particular, the stability of the pacing function was confirmed in chronic experiments.
1) Confirmation of arrhythmia detection method
To develop a new arrhythmia detection method, we used the interval histogram method for ECG, and we made an on-line real time detection program to analyze the frequency variation of the ECG. After that, we installed the program into a battery-type arrhythmia detection circuit, and confirmed its function during in-vivo test.
2) Development of an implantable stimulation unit and experimental results
The arrhythmia detection circuit and the output circuit were developed. The detection circuit was used to execute the interval histogram method and muscle stress sensing. The output circuit has the capability of cardiac pacing and muscle stimulation for cardiomyoplasty. Both pacing and muscle stimulation function were confirmed in acute animal experiments using mongrel dogs. Moreover, the implantable units were stable more than 4 weeks in chronic experiments.
In the future, for arrhythmia sensing, we will combine a database which contains various ECG data with the detection program to develop a personal oriented detection system. Moreover, we will also make effort to assemble the new implantable system with defibrillation, cardiac pacing and cardiomyoplasty functions for use in chronic animal experiments.

  • Research Products

    (8 results)

All Other

All Publications (8 results)

  • [Publications] 佐藤 栄一: "植込み型骨格筋刺激装置の開発" 平成4年度電子情報通信学会信越支部大会予行集. 335-336 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 佐藤 栄一: "心補助のための植込み型骨格筋刺激装置の開発" 第32回日本ME学会大会.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] MAKIO Hideo: "An Implantable Skeletal Muscle Stimulator with a Vibration Sensor." 5th Asian-Pacific Symposium on Cardiac Pacing and Electrophysiology.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 佐藤 栄一: "Cardiomyoplastyにおける加速度センサによる刺激制御" 電子情報通信学会技術研究報告.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Sato, E.: "Development of an implantable skeletal muscle stimulator." Proc. IEICE Shin-etsu branch,. 335-336 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sato, E.: "Development of an implantable skeletal muscle stimulator for Cardiac assist." (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Makino, H.: "An implantable skeletal muscle stimulator with a vibration sensor." (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sato, E.: "Stimulation control method for cardiomyoplasty using an acceleration sensor." (1993)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1994-03-24  

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