A reversible lockable drainage catheter for use in draining excess bodily fluid in a tissue having a catheter tube with a proximal end and a distal end, and a lockable hub positioned about the catheter tube. The characteristics of the shake are related to the particular usage environment and, therefore, can be different for the same dynamic system used in different environments. A supporting substrate for holding the frame layer is provided, said supporting substrate being implemented such that, in comparison with the influence of the voltage applied between the frame layer and the oscillating body, said supporting substrate has a negligible physical influence on the generation of the oscillation of the oscillating body.