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1. 发明授权

US5676526A Method of eliminating bubbles in a medical centrifugal pump using speed variations 失效
标题翻译：使用速度变化消除医用离心泵中气泡的方法
公开(公告)号：US5676526A
公开(公告)日：1997-10-14
申请号：US392966
申请日：1995-06-01
申请人： Katsuyuki Kuwana , Shuichi Ishii , Takeshi Aizawa , Kazuyuki Ito , Motonori Matsuura
发明人： Katsuyuki Kuwana , Shuichi Ishii , Takeshi Aizawa , Kazuyuki Ito , Motonori Matsuura
IPC分类号： A61M1/10 , A61M1/14 , A61M1/36 , F04B17/03 , F04B15/00
CPC分类号： A61M1/101 , A61M1/3629
摘要： The present invention relates to a bubble elimination method in a medical centrifugal pump wherein a blood outlet 18 is directed upward so that a vertical line X passing through the enter point O of centrifugal pump main body 12 is positioned between two straight lines .alpha.,.beta. which respectively pass through center point O and a point A and center point O and a point B, points A and B lying on the circumference of centrifugal chamber 15 where its periphery connects with blood outlet 18, and a blood inlet 17 is directed upward at an angle which is larger than the angle which is formed between the axis and the inner peripheral surface of centrifuge chamber 15, blood outlet 18 and blood inlet 17 being supported in these states by a drive portion 13 of the centrifugal pump main body 12. After filling the centrifuge chamber with blood and liquid filling, the processes of low speed drive, drive halt and high speed drive are sequentially carried out to rotating body 23. By means of this invention, it is possible to eliminate with surety the lingering of air bubbles inside centrifuge chamber 15 of centrifugal pump main body 12 when initiating circulation of the blood in the circulation path of an artificial heart-lung machine or the like.
摘要翻译： PCT No.PCT / JP94 / 01298 Sec。 371日期：1995年6月1日 102（e）1995年6月1日PCT PCT 1994年8月5日PCT公布。公开号WO95 / 04558 日期：1995年02月16日本发明涉及一种医用离心泵中的气泡消除方法，其中血液出口18向上引导，使得穿过离心泵主体12的入口点O的垂直线X位于两条直线分别通过中心点O和点A以及中心点O和点B的点a，b，位于其外围与血液出口18连接的离心室15的圆周上的点A和B，血液入口17 以比在离心机室15的轴线和内周面，血液出口18和血液入口17之间形成的角度大的角度以这些状态由离心泵主体的驱动部分13支撑在将血液和液体填充物填充到离心机室之后，依次对转动体23进行低速驱动，驱动停止和高速驱动的处理。通过本发明，可以确保在人造心肺机等的循环路径中启动血液循环时消除离心泵主体12的离心机室15内气泡的滞留。

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