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Biodegradable implantable flow sensor for on-site continuous monitoring of respiratory system

Research Project

Project/Area Number 21K20518
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0403:Biomedical engineering and related fields
Research InstitutionHiroshima City University

Principal Investigator

Al Farisi Muhammad Salman  広島市立大学, 情報科学研究科, 助教 (50910486)

Project Period (FY) 2021-08-30 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
KeywordsMEMS / 流量センサ / 生分解性 / 埋込み型 / フレキシブル
Outline of Research at the Start

肺癌や慢性閉塞性肺疾患(COPD)などの呼吸器疾患は世界中で主要な死因となっている。さらに、最近拡大している新型コロナウイルスの感染がその状況を悪化させている。これらの感染症の治療法は現在存在しないが、リスクの高い患者の早期発見と継続的なモニタリングにより、その進行を遅らせることができる。肺の機能は一般的にスパイロメトリーで検査されるが、スパイロメトリーは単点検査であり、患者が定期的に来院する必要があり、費用がかかり非効率的である。本研究では、呼吸器系のその場連続モニタリングを可能にする、生分解可能な埋込み型流量センサ素子を開発する。

Outline of Final Research Achievements

Respiratory diseases such as lung cancer and chronic obstructive pulmonary disease (COPD) have become major causes of death worldwide. Furthermore, the recent outbreak of novel coronavirus infection (COVID-19) has exacerbated the situation. Although there are currently no specific treatments for these infectious diseases, it is believed that early detection and continuous monitoring of high-risk patients can delay their progression. In this study, we developed a miniaturized thermal-based flow sensor using micro-electro mechanical systems (MEMS) technology. We then demonstrated its capability for respiratory measurement and monitoring through model experiments using an artificial ventilator and animal experiments using rat. Subsequently, we fabricated a biodegradable flow sensor employing a similar mechanism.

Academic Significance and Societal Importance of the Research Achievements

本研究ではMEMS流量センサを用いて呼吸の計測・モニタリングが可能であることを実証した。また、生分解性材料を用いたMEMS流量センサの作製技術も確立した。本センサを用いることで呼吸モニタリングが可能にし、センサが動作期間を超えた後に自然に消え、デバイスを回収するための手術が不要になる。

Report

(3 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • Research Products

    (3 results)

All 2023

All Journal Article (2 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (1 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Facile In-Tube-Center Packaging of Flexible Airflow Rate Microsensor for Simultaneous Respiration and Heartbeat Measurement2023

    • Author(s)
      Muhammad Salman Al Farisi、Yang Wang、Yoshihiro Hasegawa、Miyoko Matsushima、Tsutomu Kawabe、Mitsuhiro Shikida
    • Journal Title

      IEEE Sensors Journal

      Volume: 23 Issue: 12 Pages: 12626-12633

    • DOI

      10.1109/jsen.2023.3272310

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Facile In-Tube-Center Packaging of Flexible Airflow Rate Microsensor for Simultaneous Respiration and Heartbeat Measurement2023

    • Author(s)
      Muhammad Salman Al Farisi、Yang Wang、Yoshihiro Hasegawa、Miyoko Matsushima、Tsutomu Kawabe、Mitsuhiro Shikida
    • Journal Title

      TechRxiv

      Volume: - Pages: 1-8

    • DOI

      10.36227/techrxiv.22720810

    • Related Report
      2022 Annual Research Report
    • Open Access
  • [Presentation] In-tube-center packaging of flexible MEMS airflow-rate sensor and its sensitivity enhancement2023

    • Author(s)
      Muhammad Salman Al Farisi、Yang Wang、Yoshihiro Hasegawa、Miyoko Matsushima、Tsutomu Kawabe、Mitsuhiro Shikida
    • Organizer
      The 22nd International Conference on Solid-State Sensors, Actuators and Microsystems
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research

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Published: 2021-10-22   Modified: 2024-01-30  

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