A method for electrostatic loading of drugs on an implantable medical device is disclosed. The pouch includes an alignment protrusion provided on its lateral face. A data set is determined to be out-of-date only when an input data set has actually changed since the data set was last generated. In addition, deep-freezing may be optionally performed as needed to improve storability and preservative quality so that quality peppers are available through the year. A work piece 1 and a clamp member 5 can move relatively with respect to the cage 22 and a wire electrode 12 by a notch 22a formed in the upper cage 22.