人工臓器
Online ISSN : 1883-6097
Print ISSN : 0300-0818
ISSN-L : 0300-0818
完全人工心臓用副室膜作動型自動駆動制御の研究
田上 重喜岩宮 博川上 恭司中垣 満田口 一美
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ジャーナル フリー

1979 年 8 巻 6 号 p. 628-631

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Using a total artificial heart with accessory chamber, the authors newly developed an automatic drive control unit which would respond very sensitively to venous return and would provide a corresponding stroke volume. With this artificial pump the accessory chamber membrane responds to the change in venous return, that is the capacity of the accessory chamber is changed. In order to determine the diastolic time the movement of the accessory chamber membrane is detected. When the venous return becomes poor, the capacity of the accessory chamber increases and when it again becomes small, this triggers the automation. As for systolic time, when the diaphragm comes to the full systole position by the wave pattern of the positive drive pressure, the ceiling is reached. This is utilized as the trigger. As a result,
1. A stroke volume curve which responded very well to venous return volume was obtained.
2. Regardless of the inlet pressure the maximum stroke volume was always attained.
3. Within the inlet pressure range of 5-20cmH2O, the heart rate was 70-90 per minute and % systole was 30-35% and automatic drive control was possible.

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© 一般社団法人 日本人工臓器学会
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