Hydraulics and in Vitro Hemolysis Test of Implantable Magnetic Suspending Ventricular Assist Device
WU Guang-hui1, LIN Chang-yan1, XU Chuang-ye1, LIU Xiu-jian1, HE Yu-na1, YANG Peng2, CHEN Chen2
1. Biomedical Engineering Laboratory, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China; 2. Research and Development Department, ChinaHeart Biomedical Inc, Suzhou Jiangsu 215125, China
Abstract：ObjectiveTo test the working performance and hemocompatibility of a small implantable magnetic suspending ventricular assist device. Methods The hydraulic pump performance has been tested through in vitro mock circulation loop experiments. The in vitro tests referring to ASTM F1841 standard were made to test the in vitro hemolytic performance.ResultsIt turned out that the pump can deliver 5 L/min for pressures of 100 mmHg at a rotational speed of approximately 3500 rpm. The average normalized index of hemolysis values of the device was (0.0007±0.0003) mg/dL.ConclusionThe in vitro hydraulics test indicated that the device works with stable performance and can meet the requirements of adult ventricular assist, meanwhile, it has good hemolytic performance.
吴广辉1，蔺嫦燕1，徐创业1，刘修健1，何玉娜1，杨朋2，陈琛2. 磁悬浮植入式心室辅助装置体外水力学及溶血实验[J]. 中国医疗设备, 2017, 32(1): 14-17.
WU Guang-hui1, LIN Chang-yan1, XU Chuang-ye1, LIU Xiu-jian1, HE Yu-na1, YANG Peng2, CHEN Chen2. Hydraulics and in Vitro Hemolysis Test of Implantable Magnetic Suspending Ventricular Assist Device. China Medical Devices, 2017, 32(1): 14-17.
