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1996 Fiscal Year Final Research Report Summary

Home health monitoring for elderly : Development of a health monitoring device for bathing

Research Project

Project/Area Number 06557149
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section試験
Research Field Nursing
Research InstitutionTokyo Medical and Dental University

Principal Investigator

TAMURA Toshiyo  Tokyo Medical and Dental University, Inst.for Med.& Dent.Eng., Associate Professor, 医用器材研究所, 助教授 (10142259)

Co-Investigator(Kenkyū-buntansha) SAITO Hirokazu  Tokyo Medical and Dental University, Inst.for Med.& Dent.Eng., Technical Officia, 医用器材研究所, 教務職員 (00205668)
TOGAWA Tatsuo  Tokyo Medical and Dental University, Inst.for Med.& Dent.Eng., Professor, 医用器材研究所, 教授 (40013859)
Project Period (FY) 1994 – 1996
KeywordsElectrocardiogram / Heart rate / Data transmission / Home health care / Bathing / Automatic data acquisition / Personal identification / Bathtub ECG
Research Abstract

An unconstrained electrocardiograph (ECG) and heart rate monitor was designed to record ECG measurements in the bathtub. The apparatus consisted of analog and digital parts. In the analog part, electrocardiographic signals obtained from electrodes placed inside the bathtub were amplified. The electrodes were made of stainless steel and were 104*74*0.5 mm in size including the absorbent sponge covers. Working electrodes were placed 20 cm from the bottom of the long bathtub wall, close to the position of the immersed trunk, and a reference electrode was placed 5 cm from the bottom of the side wall close to the toe position. In the digital part of the system the heart rate was calculated from the R-R interval of each ECG pulse and the calculated data were stored in a random access memory. These store data were transferred to a personal computer through an RS 232C interface and analyzed. The heart rates obtained from the bathtub ECG agreed with those obtained from a body surface ECG.The frequency characteristics of the bathtub ECG varied with the bathtub dimensions and the electrical conductivity of the water. Using this apparatus, heart rate measurement can be obtained easily and noninvasively, but interpretation of the electrocardiographic signal requires great care. This monitor could thus be used as a home health heart rate monitor.
For home health care, personal identification was required when other family members also used monitoring devices. In bed personal identification was easy because most subjects use their own bed. In the bathtub, personal identification using an ECG waveform was proposed [7,8]. The ECG waveform of one cardiac cycle was obtained and wavelet transform in which the mother wavelet was Daubechies-4 was applied to reduce the ECG data and a three-layr neural network was introduced to identify each subject among the family members.

  • Research Products

    (26 results)

All Other

All Publications (26 results)

  • [Publications] 田村俊世: "在宅における睡眠時および入浴時中のモニタの開発" 日本エム・イ-学会専門別委員会「在宅医療とME技術」. 3(1). 7-12 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 吉村拓巳: "無拘束浴槽内心拍数モニタの開発とその評価" 医用電子と生体工学. 32. 246-53 (1994)

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      「研究成果報告書概要(和文)」より
  • [Publications] 中島一樹: "浴槽内心電図法を用いた入浴中の心拍数ゆらぎ変化" 第9回生体・生理工学シンポジウム論文集. 9. 255-8 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Togawa,T: "Home health monitorij for elderly" Proc ICBME '95 and ISBMRE '95. 51-2 (995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 吉村拓巳: "入浴モニタ開発のための測定パラメータ決定の研究" 医用電子と生体工学. 33(1). 1-6 (1995)

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      「研究成果報告書概要(和文)」より
  • [Publications] 吉村拓巳: "入浴中の心拍変動と快適度" 医用器材研究所報告. 29. 95-103 (1995)

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      「研究成果報告書概要(和文)」より
  • [Publications] 田村俊世: "入浴中の脈波伝搬時間と血圧" 医用器材研究所報告. 29. 104-9 (1995)

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      「研究成果報告書概要(和文)」より
  • [Publications] 小川充洋: "離散ウェーブレット変換とニューラルネットワークを用いた浴槽内心電図個人識別に関する研究" 第10回生体生理工学シンポジウム論文集. 10. 481-4 (1995)

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      「研究成果報告書概要(和文)」より
  • [Publications] Togawa,T: "Attenpts of folly automated home health monitoriy systems" Med. & Biol. Eng. & Comput. 34 Suppl.1 port1. 31-2 (1996)

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      「研究成果報告書概要(和文)」より
  • [Publications] Ogawa,M.: "Personel identification of automaticellyiecooded ECG in the bathtub" Proc 2^<nd> IMI・IFMBE Intern. Wookshop Biosignd. 219-22 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Ogawa,M.: "Folly antomated ECG data a oguisition in a bathtob" 18^<th> Ann. Intern. Conf. IEEEIEMBS. Conferce CD ROM. (1996)

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      「研究成果報告書概要(和文)」より
  • [Publications] 依田美紀子: "在宅健康管理システムのための自動計測機の開発" 第11回生体生理工学シンポジウム論文集. 11. 401-4 (1996)

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      「研究成果報告書概要(和文)」より
  • [Publications] 小川充洋: "離散ウェーブレット変換とニューラルネットワークを用いた浴槽心電図の個人識別に関する研究" 第11回生体生理工学シンポジウム論文集. 11. 513-6 (1996)

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      「研究成果報告書概要(和文)」より
  • [Publications] 小川充洋: "在宅における入浴時の健康管理" 日本エム・イ-学会事門別委員会包括医療におけるマルチメディア研究会. 1(3). 1-6 (1997)

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      「研究成果報告書概要(和文)」より
  • [Publications] Tamura,T: "Fully automated health monitonry at home" Conference book of 2^<nd> Intern Gerontechnology. (in Press). (1997)

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      「研究成果報告書概要(和文)」より
  • [Publications] 小川充洋: "浴槽内心電図を用いた個人識別" 医用電子と生体工学. 35.(印刷中). (1997)

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      「研究成果報告書概要(和文)」より
  • [Publications] 吉村拓巳: "伝導度測定法による入浴中の発汗量測定の試み" 発汗学. 1(2). 100-2 (1994)

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      「研究成果報告書概要(和文)」より
  • [Publications] Tamura,T.: "Unonstoned heart rate moruyory duvy bething" Bioned. Instrum. Technol.31. (a ccept for pub.). (1997)

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      「研究成果報告書概要(和文)」より
  • [Publications] Togawa T,Tamura T,Kimura Y,Ogawa M.: "Attempts of fully automated home health monitoring systems." Medical & Biological Engineering Computing. 34 (Suppl 1 part 1). 31-2 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ogawa M,Kimura Y,Tamura T and Togawa T.: "Personal identification of automatically recorded ECG in the bathtub using wavelet transformation and neural network." Proceedings of 2nd IMI-IFMBE International Workshop on Biosignal Interpretation. 219-22 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ogawa M,Kimura Y,Tamura T,Togawa T.: "Fully automated ECG data acquisition in a bathtub" 18^<th> Annual Intern.Conf.IEEE/EMBS. CD-ROM #1.1.5-5. (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tamura T,Togawa T,Ogawa M,Yamakoshi K.: "Fully automated health monitoring at home" Conference Book of 2^<nd> International Gerontechnology. (in press). (1997)

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      「研究成果報告書概要(欧文)」より
  • [Publications] Tamura T., Yoshimura, T., Nakajima, K., Togawa, T and Miike, H.: "Unconstrained heart rate monitoring during bathing." Biomed.Instrum.Technol.31 (accept for publication). (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Togawa T,Tamura T,Ogawa M,Yoda M.: "Home health monitoring for elderly." Proc ICBME '95 and ISBMRE '95. 51-2 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tamura T,Yoshimura T,Osa A,Nakajima K,Miike H,Togawa T.: "Heart rate variability during bathing using electrocardiographic electrodes attached to the Bathtub" Ann Noninvasive Electrocardiology (ANE). 1 (2) Pt2. 239 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hasebe T,Otsuka K,Kikuchi T,Tamura T,Togawa T.: "Ambulatory ECG monitoring during a bath : alteration of heart rate variability." Ann Noninvasive Electrocardiology (ANE). 1 (2) Pt2. 239 (1996)

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      「研究成果報告書概要(欧文)」より

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Published: 1999-03-09  

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