System for treating ejection fraction preserved heart failure (HFpEF)

A system for treating heart failure (HFpEF) with preserved ejection fraction is described. The system includes a blood pumping device configured for implantation in a left ventricle of a subject's heart, an anchoring assembly for anchoring the blood pumping device to a wall of the left ventricle, and a controller configured to modify an output parameter of the blood pumping device to activate and deactivate the blood pumping device in a pattern collaborative with the cardiac cycle of the subject, the pattern including activation during ventricular diastole and deactivation during ventricular systole. 描述了一种治疗射血分数保留的心力衰竭(HFpEF)的系统。该系统包括配置成用于植入对象心脏的左心室中的血液泵送设备、用于将该血液泵送设备锚定到左心室的壁的锚定组件、以及配置成用于修改该血液泵送设备的输出参数以便以与该对象的心动周期协同的模式激活和停用该血液泵送设备的控制器，该模式包括在心室舒张期激活和在心室收缩期停用。