A malleable shaft device for use in surgical procedures, having a tension fiber therein, whereby the malleable shaft transitions from a malleable state to a rigid state when a force is applied to the tension fiber, has a variable-pitch cam operatively connected to the tension fiber, and a lever operatively connected to the variable pitch cam for applying force. The driving apparatus includes an inverter, a lamp current sensor, and an inverter controller. Consequently, by determining the current condition of airflow through the tee, it can be determined whether a ball is rested on the tee or whether a next ball should be supplied. The supporting member includes a number of supporting sheets which can be folded or unfolded relatively to each other. Each drive element is jointly connected to n cell resistors forming a memory cell, the cell resistors being CBRAM resistance elements, in particular, and also to a writing, reading and erasing method for a resistive memory arrangement realized with CBRAM resistance elements.