An Implantable Controlled Solenoid Left Ventricular Assist System.

摘要

The report describes the progress made with the current prototype solenoid actuated Left Ventricular Assist System (LVAS). This system,the MK19 LVAS,is the first in the development series to incorporate a solenoid actuator of Vanadium Permendur in a single gap configuration,and represents a substantial size reduction of the actuator to 480ml and 1.5Kg. Comparisons are made with the previous MK16C system and significant changes in the actuator design are described. A new battery operated energy and control system,substantially reduced in size and compatible in design approach with eventual miniaturization for total implantation is detailed.