It is basically an ultrasound probe (acoustic vibrator) combined with an aspirator device (suction). It is attached to a suction hose (which usually is attached to a water aspirator). A vacuum is applied (usually via a water aspirator via the vacuum inlet). See aspirator and pressure head for discussion of this type of siphon. In 1995, he developed a low-pressure balloon and aspirator system for use in catheter-based interventions. The aspirator provided advantages in cost, weight, packaging, and simplicity compared to the pump. Marangoni simplified the aspirator for the measurement of gas. The cheap and simple water aspirator is the most common type of aspirator. In the past manually operated aspirators were used such as "Potain's aspirator".