Final answer:
LVADs are devices that assist the heart by pumping blood from the left ventricle to the aorta and regulating blood flow and pressure. The MicroMed DeBakey VAD, developed with NASA collaboration, is an example of such a device that offers less invasive treatment and better patient mobility.
Step-by-step explanation:
The mechanisms of Left ventricular assist devices (LVAD) are essential for heart failure patients who require support while awaiting a heart transplant. One of the primary functions is pumping blood from the left ventricle to the aorta, ensuring that the blood reaches the systemic circulation. Additionally, LVADs serve the purpose of assisting the heart in pumping blood; they take over some of the workload of the weakened left ventricle. While LVADs do not entirely replace the function of the left ventricle, they significantly aid in maintaining circulatory function. Moreover, LVADs can indirectly assist in regulating blood pressure by ensuring consistent and adequate blood flow.
Collaboration between NASA, Dr. Michael DeBakey, Dr. George Noon, and MicroMed Technology Inc. led to the development of the MicroMed DeBakey ventricular assist device (VAD), which is a compact and less invasive heart pump that significantly reduces device-related infections and offers improved mobility for patients.