Intra-aortic balloon device, auxiliary device and method for improving blood flow, counter pulsation and hemodynamics

摘要

PROBLEM TO BE SOLVED: To provide a circulatory support device for improving blood pressure of an aorta or other circulatory lumen and generating and enhancing blood flow. An inflatable pump balloon having a proximal end joined to an elongated balloon catheter and a segment extending distally from the pump balloon, the balloon catheter and a sleeve tube surrounding the balloon catheter. And a radially expandable frame, and an elongated balloon catheter extends from the circulatory lumen to the outside of the patient's body and extends from the pump to the pump balloon. The expandable frame has a proximal end spaced from the distal end by a length sufficient to receive a positive or negative pressure pulse to expand or contract, and the expandable frame is operated to expand in the circulatory lumen And function to space the pump balloon away from the circulatory lumen.