モーター体型埋込型左心補助人工心臓システム(LVAS)の開発 基礎的検討

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タイトル別名
  • Development of motor-driven implantable left ventricular assist system: Basic design and its evaluation.
  • ―基礎的検討―

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We have developed a motor-driven implantable left ventricular assist system. This system consists of a pusher-plate type pump and a spline actuator driven by a DC brushless motor. A pump housing was made of epoxy-resin and a diaphragm was made of segmented- polyurethane (TM-5). The diameter of the model 1 was 85mm, 76mm in depth and 900 gram of weight. The actuator showed good durability (up to 300 days) in unloading status. In mock circulation, the model 1 showed 2.6l/min of output in 20mmHg of preload and 80mmHg of afterload. We changed the configuration of the pump and the motor design in model 2. New model showed 7.6l/min of output in mock circulation. This system is promising to the new implantable LVAS.

収録刊行物

  • 人工臓器

    人工臓器 25 (3), 576-581, 1996

    一般社団法人 日本人工臓器学会

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