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作者采用新型左心辅助泵－罗叶泵在动物体内进行左心辅助循环活体实验，用健康山羊１０只，体重３０～５３ｋｇ，平均４３．５ｋｇ。全组动物均应用左心房与降主动脉间转流。结果如下：１．１０只山羊术前与转流后６小时平均动脉压分别是１３．３±０．８ｋＰａ１３．６±１．９ｋＰａ，中心静脉压分别是１．７３±０．１４ｋＰａ和０．８２±０．３１ｋＰａ；２．术前和转流后左心室舒张期内径长轴分别为５８．１±１．９ｍｍ和３９．３±１．５ｍｍ，短轴分别为２５．０±１．２ｍｍ和１８．１±１．４ｍｍ；３．术前及转流后动脉血气分析均在正常范围；４．ＡＣＴ和ＰＴ时间在术后２～３小时均降至正常水平；５．辅助循环后血浆游离血红蛋白浓度有不同程度升高，最高达２２４．５±４０．８ｍｇ／Ｌ；６．病理检查未见血栓形成和栓塞现象。结果显示为罗叶泵具有良好的抗血栓形成作用和良好的血流动力学特性。是很好的左心辅助泵并具有良好的临床应用前景。
The author uses a new left heart-assisted pump - Luo leaf pump in vivo animal left heart auxiliary cycle of living experiments, with healthy goats 10, weighing 30 ~ 53kg, an average of 43.5kg. All animals were applied left atrium and descending aorta flow. The results are as follows: 1.10 goats 6 hours after preoperative and post-bypass mean arterial pressure were 13.3 ± 0.8kPa13.6 ± 1.9kPa, central venous pressure were 1.73 ± 0.14kPa and 0. 82 ± 0.31kPa; 2. The major axes of left ventricular diastolic diameter were 58.1 ± 1.9mm and 39.3 ± 1.5mm respectively before and after transcatheter, while the short axes were 25.0 ± 1.2mm and 18.1 ± 1.4mm 3. Preoperative and post-transfer arterial blood gas analysis are in the normal range; 4. ACT and PT time after 2 to 3 hours were reduced to normal levels; After the auxiliary circulation plasma free hemoglobin concentration increased to varying degrees, up to 224.5 ± 40.8mg / L; Pathological examination showed no thrombosis and embolism. The results showed that Luo pump has good anti-thrombosis and good hemodynamic properties. Is a good left heart auxiliary pump and has good clinical application prospects.