Purge-free mechanical cycle support system with magnetic drive

A minimally invasive micro percutaneous mechanical circulation support system is disclosed. The system may be placed through the aortic valve via a single femoral artery access point. The system includes a low profile axially rotating blood pump carried by the distal end of the catheter. The system may be percutaneously inserted through the femoral artery and positioned through the aortic valve into the left ventricle. The device actively unloads the left ventricle by pumping blood from the left ventricle into the ascending aorta and systemic circulation. The magnetic driver and the encapsulated motor housing allow for extended periods of purge-free operation to treat various diseases, such as more than six hours as an acute treatment of cardiac shock. 公开了一种微创微型经皮机械循环支持系统。系统可以经由单个股动脉进入点穿过主动脉瓣放置。系统包括由导管的远端承载的低型面轴向旋转血泵。系统可以通过股动脉经皮插入并且穿过主动脉瓣定位到左心室中。装置通过将血液从左心室泵送到升主动脉和体循环中来为左心室主动卸荷。磁性驱动器和包封的马达壳体允许长时间无吹扫操作以治疗各种疾病，例如超过六小时作为心源性休克的急性治疗。