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Development of a New Ambulatory Monitoring System for Indirect Beat-to-Beat Arterial Blood Pressure Using the Volume-compensation Method

Research Project

Project/Area Number 01850083
Research Category

Grant-in-Aid for Developmental Scientific Research (B).

Allocation TypeSingle-year Grants
Research Field 計測・制御工学
Research InstitutionHokkaido University

Principal Investigator

YAMAKOSHI Ken-ichi  Res. Inst of Appl. Electr., Hokkaido Univ. Associate Prof., 応用電気研究所, 助教授 (40014310)

Co-Investigator(Kenkyū-buntansha) ANDO Joji  Res. Inst. of Appl. Electr., Hokkaido Univ. Assistant Prof., 講師 (20159528)
柴田 正廣  北海道大学, 応用電気研究所, 助手 (60158954)
神谷 瞭  北海道大学, 応用電気研究所, 教授 (50014072)
Project Period (FY) 1989 – 1990
Project Status Completed (Fiscal Year 1990)
Budget Amount *help
¥4,800,000 (Direct Cost: ¥4,800,000)
Fiscal Year 1990: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 1989: ¥3,200,000 (Direct Cost: ¥3,200,000)
KeywordsVolume-compensation Method / Indirect Sphygmomanometry / Instantaneous Arterial Pressure / Superficial Temporal Artery / Ambulatory Monitoring / Pneumatic Servo-control System / Photoelectric Plethysmography / Electro-pneumatic Converter
Research Abstract

A new portable instrument for the ambulatory monitoring of instantaneous arterial blood pressure using the volume-compensation method previously proposed by us has been developed in the first project year. The superficial temporal artery was chosen as a measuring site order to minimize restraint for a subject and to avoid venous congestion during the long-term monitoring. A disc-type cuff with a reflectance-type photo-sensor for blood volume detection was firmly placed to the subject's head using a belt and the subject carried a cuff-pressure (Pc) control (CPC) unit (32x65x110mm, 210g) and a microprocessor-based central processing & recording (MCPR) unit (85x185x200mm, 800g). An interactive software was also developed in this year for sequential measurement control and data storage in an automatic manner during the monitoring. The CPC unit consisted mainly of a micro air pump for compressed air supply and a miniature piezo-electric valve (PVAA8000120H, JUPITOR Co.) for Pc control. The … More MCPR unit performs the automatic setting of the servo-reference value and control of the servo-gain, processing and storing of beat-to-beat indirect systolic (Pcs), mean (Pcm) and diastolic blood pressure (Pcd) and instantaneous heart rate (HR). Altogether 60,000 beats of each data can be stored in a memory IC unit. After the monitoring, the stored data are reproduced and analyzed using a conventional personal computer or a specially ordered equipment for data analysis (ECM-1DS, ESCOM CO.) to obtain trend charts and histograms of Pcs, Pcm, Pcd and HR.
In the second project year, the instrument was further improved as follows and the performance in an operation was evaluated through the clinical and dieldwork experiments. A nozzle-flapper type miniature electro-pneumatic converter for Pc control was newly designed, which was installed in the disc-type cuff together with a miniature pressure toansducer for Pc measurement. Through these modification, the frequency response of the Pc servocontrol system was highly and only the improved MCPR unit including a micro-air pump was carried by a subject. In order to evaluate the accuracy for blood pressure measurement by this instrument, simultaneous measurements of direct brachial and indirect superficial temporal arterial pressure were made in catheterised patients, showing fairly good agreements between these two values and pressure wave forms. With this instrument, ambulatory monitorings during fieldwork, highway driving, physicotherapeutics and so on, were successfully carried out, revealing that the instrument seems to have good operating performances and to be an useful means to monitor instantaneous variations of blood pressure in unrestricted subjects. Because the superficial temporal artery was adopted as a measuring site, the long-term monitoring could be made in the subjects being little affected by discomfort.
The whole programs of this research project were completed within the project term with satisfactory results as described above. Less

Report

(3 results)
  • 1990 Annual Research Report   Final Research Report Summary
  • 1989 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] 高 紅 他: "容積補償法を用いた浅側頭脈血圧の無拘束連続計測の試み" 脈管学. 29. 1094 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 田中 志信 他: "容積補償法を用いた無拘束連続血圧計測システムの開発" 電子情報通信学会技術報告. MBE90. 51-56 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 山越 憲一: "新しい血圧測定法" 医学のあゆみ. 153. 818-824 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 山越 憲一: "非観血的連続血圧計法" 呼吸. 9. 1459-1466 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] S. Tanaka et al.: "Ambulatory monitoring of beatーblood pressure in superficial temporal artery by the volumeーcompensation method" Proceedings of Far Eastern Conference on Medical and Biological Engineering. 6-7 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] A.Kawarada et al.: "Ambulatory monitoring of indirect beatーtoーbeat arterial pressure in human fingers by a volumeーcompensation method" Med. & Biol. Eng. & Comput.29. 55-62 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] YAMAKOSHI, Ken-ichi et al.: "A new ambulatory monitoring system for indirect beat by beat blood pressure in superficial temporal artery using volume-compensation method" Japanese Journal of Medical Electronics and Biological Engineering. 28(Suppl.). 338 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] YAMAKOSHI, Ken-ichi: "New non-invasive arterial pressure measurements : Volume-oscillometric & volume-compensation method for measuring finger arterial pressure" Journal of Clinical and Experimental Medicine. 153(13). 818-824 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] YAMAKOSHI, Ken-ichi: "Recent status of indirect blood pressure measurement -Methodology-" Japanese Journal of Clinical Monitor. 1(1). 39-51 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] TANAKA, Shinobu et al.: "Development of ambulatory monitoring system for instantaneous arterial blood pressure using the volume-compensation method" IEICE Technical Report. 90(104). 51-56 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] TANAKA, Shinobu et al.: "Ambulatory monitoring of beat-to-beat blood pressure in superficial temporal artery by the volume-compensation method" Proceedings of Far Easter Conference on Medical and Biological Engineering. 6-7 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] KAWARADA, Atsushi et al.: "Ambulatory monitoring of indirect beat-to-beat arterial pressure in human fingers by a volume-compensation method" Medical & Biological Engineering & Computing. 29. 55-62 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 田中 志信 他: "容積補償法を用いた無拘束連続血圧計測システムの開発" 電子情報通信学会技術報告. MBE90. 51-56 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 山越 憲一: "新しい血圧測定法" 医学のあゆみ. 153. 818-824 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 山越 憲一: "非観血的連続血圧計法" 呼吸. 9. 1459-1466 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] S.Tanaka et al.: "Ambulatory monitoring of beatーtoーbeat blood pressure in superficial temporal artery by the volumeーcompensation method" Proceedings of Far Eastern Conference on Medical and Biological Engineering. 6-7 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] A.Kawarada et al.: "Ambulatory monitoring of indirect beatーtoーbeat arterial pressure in human fingers by a volumeーcompensation method" Med.& Biol.Eng.& Comput.29. 55-62 (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] 田中 志信 他: "容積補償法による浅側頭動脈連続血圧の無拘束長時間モニタ-" 第2回臨床モニタ-研究会抄録集. 35 (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] 川原田純他: "無拘束非観血的一心拍毎連続血圧計測システムの開発と性能評価" 医用電子と生体工学. 27. 13- (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 高紅他: "容積補償法を用いた浅側頭動脈血圧の無拘束連続計測の試み" 脈管学. 29. 1094- (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 川原田純他: "無拘束計測による運動時一心拍毎血圧変化の非観血的連続測定" 体力科学. 38. 468- (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 山越憲一: "最近の間接的血圧測定と今後の課題" 血圧管理研究会論文集. 1. 5- (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 山越憲一: "血圧測定の基礎知識(7)無拘束間接血圧計測の現状と動向" Medical Tribune. 8. 34-36 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 山越憲一: "非観血的血圧測定法" 臨床モニタ. 1. 39-51 (1990)

    • Related Report
      1989 Annual Research Report

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Published: 1989-04-01   Modified: 2016-04-21  

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