Key result
Fluidic drive system for IABP minimizes inertial effects and improves reliability vs conventional solenoid valves.
The development of a fluidic drive system for intra-aortic balloon pumps may reduce time delays and improve reliability compared to conventional solenoid valves.
Fluidic IABP drive may cut delays and raise reliability; leaves open clinical validation and outcome impact.
Intra-aortic balloon pumping is a counter pulsation technique for temporary circulatory assistance in cardiogenic shock and other low cardiac output conditions. Conventional systems use a balloon at the end of a catheter driven by a solenoid valve, controlled by patient's ECG or ventricular pressure signal. This results in time delay introducted by solenoid spool inertia, gas inertia, and hysteresis effects of the solenoid. Fluidics, because of their non-moving part operation and high switching speeds, minimizes the inertial effects while contributing high reliability. This communication describes a fluidic system developed for driving the balloon accepting electric control signals.
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Hariharan et al. (1978) studied Cardiogenic shock and low cardiac output conditions. Fluidic drive system vs. Conventional solenoid valve systems was evaluated. A fluidic drive system was developed for intra-aortic balloon pumping to minimize inertial effects and improve reliability compared to conventional solenoid valve systems.
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