Department of Thoracic, Cardiac and Vascular Surgery.
Clinic for Nephrology and Rheumatology, and.
J Extra Corpor Technol. 2022 Jun;54(2):107-114. doi: 10.1182/ject-107-114.
Blood hemolysis caused by mechanical impact is a serious problem in medicine. In addition to the heart-lung machine (artificial surfaces, flow irritating connection points) which contributes to hemolysis, blood suction and surgical suction devices are influencing factors. Goal of our research is to develop best flow optimizing suction geometry that represents the best compromise between all influencing effects. Based on data that negative pressure and turbulence have a negative impact on blood components, 27 surgical suction tips have been examined for acoustic stress and negative pressure behavior. Furthermore, a dimensionless factor was introduced to assess the overall performance of the suction tips investigated.
机械冲击引起的血液溶血是医学中的一个严重问题。除了心肺机（人工表面、流刺激连接点）会导致溶血外，血液抽吸和外科吸引装置也是影响因素。我们研究的目标是开发最佳的流量优化抽吸几何形状，以在所有影响因素之间取得最佳折衷。基于负压和湍流对血液成分有负面影响的数据，我们研究了 27 种外科吸引尖端的声学应力和负压行为。此外，还引入了一个无量纲系数 来评估所研究的吸引尖端的整体性能。
