Rotacor: a new rotary blood pump.
Rotacor: a new rotary blood pump.
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Rotacor：一种新型旋转式血泵。
DOI：
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发表时间：
1990
期刊：
影响因子：
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通讯作者：
A. Königsrainer
中科院分区：
文献类型：
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作者：
R. Margreiter;W. Schwab;G. Klima;J. Koller;M. Baum;H. Dietrich;J. Hager;A. Königsrainer
一种新的旋转式血泵在小牛身上进行了6小时的试验。该泵由一个刚性外壳组成，外壳内表面呈余摆线，有一个进口和出口，以及两个侧壁。双角活塞在偏心轴上以余摆线路径旋转，从而形成间隙密封。该泵由水冷直流电机驱动。对于右心室辅助，将插管通过右心房插入右心室，并插入左心室进行左心室辅助。在总共10个实验中，评估了两个左心室辅助、两个右心室辅助和三个双心室辅助。泵在70 rpm下产生3 L的脉动流。能量需求为左心室2.19瓦，右心室2.06瓦，双心室辅助7.26瓦。血浆血红蛋白在单心室期间保持低至10 mg/dl，在双心室辅助期间增加至3小时后20 mg/dl，此时再次开始下降; 6小时后为16 mg/dl。从这些初步结果可以得出结论，这种新型血泵可能适合作为循环辅助装置。
A new rotary blood pump was tested in calves for 6 hr. The pump consists of a rigid housing with a trochoidal internal surface, an inlet and outlet, and two lateral walls. A two-corner piston rotates on an eccentric shaft in a trochoidal path, thus creating a gap seal. The pump is driven by a water-cooled DC motor. For right ventricular assist, a cannula was inserted into the right ventricle through the right atrium, and into the left ventricle for left ventricular assist. From a total of 10 experiments, two left ventricular assists, two right ventricular assists, and three biventricular assists were evaluated. The pump produced a pulsatile flow of 3 L at 70 rpm. Energy requirements were 2.19 watts for left, 2.06 for right, and 7.26 for biventricular assists. Plasma hemoglobin remained as low as 10 mg/dl during monoventricular, and increased during biventricular assists to 20 mg/dl after 3 hr, when it started to chop again; after 6 hr it was 16 mg/dl. From these preliminary results it is concluded that this new type of blood pump may be suitable as a circulatory assist device.