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自体输血的一个主要问题是应用此技术后尤其在大量自体输血的情况下,常可引起血液学的异常。脚踏控制器允许外科医生调整自体输血器上的泵头速度。这个特点不仅使外科医生能在泵头,而且在血液/空气界面的物理现象会引起血细胞破坏的吸头处,将血液破坏减少至最小。这一优点特别是在为心肺旁路而设计的各种类型泵式氧合器上得到肯定。线路:一般地,自体输血泵头速度是由自体输血器控制板上的手控电位器(用5瓦、50欧姆)加以调整的。电位器的调整控制着可控硅整流器的通导时间,以改变电动机的速度。供作脚踏泵速控制器的是一个防爆的5瓦、50欧姆的脚控电位器,并
A major problem with autologous blood transfusion is the often hematologic abnormalities that can result from the use of this technique, especially in the case of large numbers of autologous blood transfusions. The foot controller allows the surgeon to adjust the pump head speed on the autocamp. This feature not only allows the surgeon to minimize blood damage at the pump head, but also at the tip of the blood / air interface that causes the destruction of blood cells. This advantage is recognized especially for the various types of pump oxygenators designed for cardiopulmonary bypass. Line: In general, the autotransfusion pump head speed is adjusted by a manual potentiometer (5 watts, 50 ohms) on the autotransfusion control board. The adjustment of the potentiometer controls the on-time of the thyristor to change the speed of the motor. For the foot pump speed controller is an explosion-proof 5-watt, 50 ohm foot control potentiometer and