DEVELOPMENT OF PUSHER-PLATE TYPE TAH SYSTEM - EVALUATION OF ITS DRIVING-CONTROLLABILITY.

T. Tanaka; S. Takatani; T. Matsuda; H. Takano; Y. Taenaka; T. Nakatani; M. Umezu; T. Nakamara; H. Iwata; J. Seki; H. Noda; K. Hayashi; T. Akutsu

DEVELOPMENT OF PUSHER-PLATE TYPE TAH SYSTEM - EVALUATION OF ITS DRIVING-CONTROLLABILITY.

T. Tanaka^*, S. Takatani, T. Matsuda, H. Takano, Y. Taenaka, T. Nakatani, M. Umezu, T. Nakamara, H. Iwata, J. Seki, H. Noda, K. Hayashi, T. Akutsu

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

Abstract

With the aim of developing a completely implantable total artificial heart system, pusher-plate (PP) type TAH and versatile control-drive systems were developed. The PP pumps incorporate Hall effect sensors to provide PP movement continuously, this signal then is used to compute beat-to-beat pump output as well as to control PP movement precisely. Each pump can be operated at a fixed pulse rate (FR), variable pulse rate (VR) or in synchrony with the ECG P-wave. In the VR mode, pump stroke volume is regulated at a preset level utilizing a Hall effect signal, while the pump rate is allowed to vary depending on the preload and afterload. Both in-vitro and in-vivo studies demonstrated satisfactory performances of both pump and drive systems in controlling the hemodynamics. Also Hall sensor derived pump output values agreed well with the volumetric measurement (r equals 0. 996).

Original language	English
Pages (from-to)	398-399
Number of pages	2
Journal	Japanese journal of medical electronics and biological engineering
Volume	22
Publication status	Published - 1984 Apr 1
Externally published	Yes

ASJC Scopus subject areas

Biomedical Engineering

Cite this

@article{14ab8283c0d74fce8ecb774b75354bee,

title = "DEVELOPMENT OF PUSHER-PLATE TYPE TAH SYSTEM - EVALUATION OF ITS DRIVING-CONTROLLABILITY.",

abstract = "With the aim of developing a completely implantable total artificial heart system, pusher-plate (PP) type TAH and versatile control-drive systems were developed. The PP pumps incorporate Hall effect sensors to provide PP movement continuously, this signal then is used to compute beat-to-beat pump output as well as to control PP movement precisely. Each pump can be operated at a fixed pulse rate (FR), variable pulse rate (VR) or in synchrony with the ECG P-wave. In the VR mode, pump stroke volume is regulated at a preset level utilizing a Hall effect signal, while the pump rate is allowed to vary depending on the preload and afterload. Both in-vitro and in-vivo studies demonstrated satisfactory performances of both pump and drive systems in controlling the hemodynamics. Also Hall sensor derived pump output values agreed well with the volumetric measurement (r equals 0. 996).",

author = "T. Tanaka and S. Takatani and T. Matsuda and H. Takano and Y. Taenaka and T. Nakatani and M. Umezu and T. Nakamara and H. Iwata and J. Seki and H. Noda and K. Hayashi and T. Akutsu",

year = "1984",

month = apr,

day = "1",

language = "English",

volume = "22",

pages = "398--399",

journal = "Japanese Journal of Medical Electronics and Biological Engineering",

issn = "0021-3292",

publisher = "Nihon M E Gakkai",

}

TY - JOUR

T1 - DEVELOPMENT OF PUSHER-PLATE TYPE TAH SYSTEM - EVALUATION OF ITS DRIVING-CONTROLLABILITY.

AU - Tanaka, T.

AU - Takatani, S.

AU - Matsuda, T.

AU - Takano, H.

AU - Taenaka, Y.

AU - Nakatani, T.

AU - Umezu, M.

AU - Nakamara, T.

AU - Iwata, H.

AU - Seki, J.

AU - Noda, H.

AU - Hayashi, K.

AU - Akutsu, T.

PY - 1984/4/1

Y1 - 1984/4/1

N2 - With the aim of developing a completely implantable total artificial heart system, pusher-plate (PP) type TAH and versatile control-drive systems were developed. The PP pumps incorporate Hall effect sensors to provide PP movement continuously, this signal then is used to compute beat-to-beat pump output as well as to control PP movement precisely. Each pump can be operated at a fixed pulse rate (FR), variable pulse rate (VR) or in synchrony with the ECG P-wave. In the VR mode, pump stroke volume is regulated at a preset level utilizing a Hall effect signal, while the pump rate is allowed to vary depending on the preload and afterload. Both in-vitro and in-vivo studies demonstrated satisfactory performances of both pump and drive systems in controlling the hemodynamics. Also Hall sensor derived pump output values agreed well with the volumetric measurement (r equals 0. 996).

AB - With the aim of developing a completely implantable total artificial heart system, pusher-plate (PP) type TAH and versatile control-drive systems were developed. The PP pumps incorporate Hall effect sensors to provide PP movement continuously, this signal then is used to compute beat-to-beat pump output as well as to control PP movement precisely. Each pump can be operated at a fixed pulse rate (FR), variable pulse rate (VR) or in synchrony with the ECG P-wave. In the VR mode, pump stroke volume is regulated at a preset level utilizing a Hall effect signal, while the pump rate is allowed to vary depending on the preload and afterload. Both in-vitro and in-vivo studies demonstrated satisfactory performances of both pump and drive systems in controlling the hemodynamics. Also Hall sensor derived pump output values agreed well with the volumetric measurement (r equals 0. 996).

UR - http://www.scopus.com/inward/record.url?scp=0021404404&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0021404404&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0021404404

SN - 0021-3292

VL - 22

SP - 398

EP - 399

JO - Japanese Journal of Medical Electronics and Biological Engineering

JF - Japanese Journal of Medical Electronics and Biological Engineering

ER -

DEVELOPMENT OF PUSHER-PLATE TYPE TAH SYSTEM - EVALUATION OF ITS DRIVING-CONTROLLABILITY.

Abstract

ASJC Scopus subject areas

Other files and links

Fingerprint

Cite this