An agitating or dispersing apparatus with a hermetically sealed mixing chamber, an agitating or dispersing tool that can be driven in this mixing chamber about a central axis and with a rod-shaped element for transferring the power of a drive onto this tool, and with the drive located outside of the mixing chamber. The apparatus comprises a cover member, a bight extending from one end of the cover member, and a retaining plate spaced from the cover member and connected to the bight to provide a biasing force away from the cover member and towards an electronic device. A sliding wall is slidably mounted within the second housing, dividing the interior thereof into upper and lower resonator chambers. The filling collar and the forming sleeve are movable relative to each other to form a bait sack with the netting material. In addition, the present invention relates to the use of plasma or other therapeutic forms with an alpha-1-antitrypsin content sufficient to obtain a dose of 6 mg or more of alpha-1-antitrypsin per kg of body weight at a frequency of between 1 and 31 days.