Development of a New Membrane Oxygenator Composing a Ultra-Low Priming Volume Cardiopulmonary Bypass System.

我们研制了两种适用于部分体外循环回路的新型毛细血管外血流式膜式氧合器。一种是Acylindrica-Y型氧合器（外壳长280 mm，外壳直径48 mm，气体交换膜表面积1.67 m^2），采用新型微孔聚丙烯中空纤维（内径320 μ m，厚度55 μ m，孔隙率70%）。气体交换性能如表1所示。另一种1/2s箱式氧合器（长178mm，宽92mm，深32mm，气体交换膜表面积1.54m）。表2所示的气体交换性能是足够的。

We developed two types of new extracapillary blood flow type membrane oxygenator which is available for a part of cardiopulmonary bypass circuit. One is acylindrica-Y type oxygenator (280mm in housing length, 48mm in housing diameter, 1.67m^2 in gas exchange membrane surface area) using new microporous polypropylene hollow fiber (internal diameter : 320 micrometer, thickness : 55 micrometer, porosity : 70%). The gas exchange performance is shown in table 1.The other 1/2s box type oxygenator(178mm in length, 92mm in width, 32mm in depth, 1.54m in gas exchange membrane surface area). The gas exchange performance shown in table 2 is sufficient.