The invention relates to thin film-shaped or wafer-shaped pharmaceutical preparations for oral administration of active substances. Such methods overcome many of the above-described limitations of the prior art. Thus the hydraulic cylinders conventionally used to produce the steering of the articulated machine are eliminated, together with the hydraulic circuit associated with them. The PEEK mesh delivery instrument is preferably, but not necessarily, a minimally invasive delivery instrument. A width of said at least one intensity distribution curve around said peak is measured, whereby said measured width indicates the amount of light scattered in said object.