超导磁悬浮叶轮积压泵的可行性研究

Permanent maglev impeller assist pump and total heart were developed under support of NSFC in past three years. Compared with other devices in the development abroad, there are seven novelties in our new devices: A. the maglev is achieved by passive magnetic bearings, thus no position detection and no feed-back control are needed; B. the devices can produce either pulsatile and nonpulsatile blood flow; C. the volume equilibrium between left and right pumps of impeller total heart can be realized automatically by self-modulation property of the impeller pump; D. the permanent maglev consumes no additional electric power; E. the pump and the motor are compacted in one unit and all the blood contacting surfaces have wash-out of fresh blood cyclically, so that no thrombus will be formed during long term and permanent applications; F. the device has only a rotor and a stator, the rotor reciprocates axially so as to prevent stasis and dead-water area in the pump; G. the impeller vane is designed according to an analytical three dimensional stream-lined method and thereafter no blood damage and organ dysfunction will occur by applications.

应用超导磁体试投制磁悬浮电机及轴承，用于驱动叶轮血泵，避免应用常规磁体实现悬浮时产生的控制复杂可靠性差和消耗电能缺点，同时保持磁浮叶轮血泵不存在机械磨和不产生血栓的优点，从而提高血泵长期使的稳定性及可靠性，为研制永久性人工心脏定基础。..