I would like to install a left ventricular assist device. It's a battery-operated machine to help your heart pump.

可以装一个左心室辅助装置。是个用电池的机器，帮助你的心脏来泵血。

Mr. Howard has a ventricular assist device.

霍华德先生装有心室辅助器。

Alternatively, for heart failure in general, some people might have ventricular assist devices implanted, or VADs, which literally assist or help the heart pump blood may also be implanted.

另外，对于大多数心力衰竭，有些病患可能植入心室辅助装置，或VAD；它可以协助或帮助心脏泵血。