NATURAL FREQUENCY RESPONSE OF INTRAAORTIC BALLOONS

摘要

An Intraaortic Balloon (IAB) is a cardiac assist device that consists of a catheter (lumen) and a balloon at the catheter's distal end. A balloon pump, or IABP, and a transducer are connected to the hub of the catheter that remains outside of the body. Connecting the inner lumen to the balloon pump through the hub of the catheter is typically used to monitor pressures within the human body and can be characterized as a catheter-transducer system. The three main components of this system and their functions are as follows: the IAB gives access to the blood pressure system through the inner lumen; a transducer converts a mechanical impulse of a pressure wave into an electrical signal; the IABP records the electrical signals for the pump operator's and pump's interpretation. The pump analyzes the incoming electricalrnsignal and, in turn, triggers the appropriate IAB inflate and deflate times.