Development of Arterio-Ventricular Septal Menbrane Driven Electro-magnetic Artificial Heart Pump

动室间隔膜驱动电磁人工心脏泵的研制

• 批准号: 59870045
• 负责人: FUJIMASA Iwao
• 金额: $ 17.28万
• 依托单位: University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research
• 财政年份: 1984
• 资助国家: 日本
• 起止时间: 1984 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-59870045/
• 关键词: Totally implantable artificial heart; Atrio-ventricular septal wall driven blood pump; Electro-magnetic driven artificial heart; Free diaphragm heart pump; Compliance chambar-less artificial heart; 液体駆動方式人工心臓; 人工心臓・DCサーボモータ; 血液ポンプ; 埋込用人工心臓; in-vi

Summary of the results of the project are as follows;(1) The principle of atrio-ventricular septal wall driven artificial heart pump was invented, and was designed.(2) The blood pump was not necessary to have compliance chamber which is inevitablly provided in the designe of implantable mechanical driven heart.(3) Double sack type and a diaphragm type pump were designed and produced as prototypes, and these blood pumps were installed in piston type drive mechanism.(4) The results of the prototype pump testing showed that these pumps had very low inflow fluidic resistance. The systolic phase and diastolic phase of the pump happened at the same time.(5) From the animal experiments, if the inflow venous return is enough volume to inspire, there are no vacume pressure in atrium and venous system. On less venous return than pump sucking volume, the venous system causes negative pressure and it requires the control of sucking speed of the pump.(6) Free diaphragm type artificaila heart pump was developed as a spin-off products.(7) Linear-actuator coupled free diaphragm pump was developed and tested in a mock circulation.

项目成果总结如下：(1)发明了房室间隔壁驱动的人工心脏泵的原理，并进行了设计。(2)血泵不需要有顺应室，顺应室是不可避免的。 (3)设计并生产了双袋式和隔膜式泵作为样机，并将这些血泵安装在活塞式驱动机构中。(4)样机泵测试结果表明这些泵的水压非常低流入流体阻力。泵的收缩期和舒张期是同时发生的。(5)从动物实验来看，如果流入的静脉回流量足以吸气，则心房和静脉系统不存在真空压力。当静脉回流量小于泵抽吸量时，静脉系统会产生负压，需要控制泵的抽吸速度。（6）自由隔膜式人工心脏泵是作为衍生产品开发的。（7）线性-执行器耦合自由隔膜泵是在模拟循环中开发和测试的。

项目成果

医科器械学. 55-Suppl. (1985)

医疗仪器。55-增刊（1985）

井街宏: 人工臓器. 14. 1811-1821 (1985)

今町宏：人造器官。14。1811-1821（1985）

藤正巖: 医用電子と生体工学. 23. 261 (1985)

Iwao Fujimasa：医疗电子学和生物工程 23. 261 (1985)。

医用電子と生体工学. 23-特別号. (1985)

医疗电子和生物工程23-特刊（1985）。

井街宏: 人工臓器. 15. 692-694 (1986)

今町宏：人造器官。15. 692-694 (1986)