An electrohydraulic totally implantable artificial heart with a motor-integrated regenerative pump and its computer control

[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems Pub Date : 1992-06-14 DOI:10.1109/CBMS.1992.245035

T. Masuzawa, Y. Taenaka, M. Kinoshita, T. Nakatani, H. Takano, Y. Fukui

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引用次数: 4

Abstract

An electrohydraulic totally implantable artificial heart which has a motor-integrated regenerative pump was developed. The system consists of left and right diaphragm-type blood pumps which are implanted in the thorax with a separately placed electrohydraulic actuator in the abdominal region. The blood pump was designed to have an appropriate anatomical fitting in a human thorax. The actuator is a regenerative pump which is able to pump fluid against a high head. The height, diameter, and weight of the actuator are 32.5 mm, 73 mm, and 350 g, respectively. The rotor-magnet of the brushless DC motor is embedded in the impeller of the regenerative pump in order to miniaturize the actuator and increase durability by reducing the number of moving parts. A 32-b microcomputer controls the motor of the actuator. The detection algorithm of the pumping condition was developed by using the TMSTR (time-sequential multiple-state transition representation) linguistic technique to control the artificial heart correctly and safely. The feasibility of the devices was confirmed by in vivo and in vitro experiments.<>

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一种带有电机集成再生泵及计算机控制的电液全植入式人工心脏

研制了一种具有电机集成再生泵的电液全植入式人工心脏。该系统由左右隔膜型血泵组成，它们被植入胸腔，并在腹部区域单独放置电液致动器。血泵被设计成适合人体胸腔的解剖结构。执行器是一个再生泵，能够泵流体对抗高扬程。执行器高度为32.5 mm，直径为73mm，重量为350g。将无刷直流电动机的转子磁体嵌入到再生泵的叶轮中，以实现执行器的小型化，并通过减少运动部件的数量来提高耐用性。执行器的电机由32b微型计算机控制。为了实现对人工心脏正确、安全的控制，采用时间序列多状态转换表示(TMSTR)语言技术开发了泵送状态检测算法。通过体内和体外实验证实了该装置的可行性

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems

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