Abstract: It is an object of the present invention to provide a figure-forming composition which enables the initiation of hardening even with a small amount of water and can attain a prescribed hardness, and which is suitable particularly for the production of three-dimensional living body models for surgical training by a rapid prototype process; and provide a three dimensional figure and a three-dimensional structure which are formed by using the composition. The figure-forming composition, for example, comprises a calcium-based material such as hemihydrate gypsum and polyvinyl alcohol resin, wherein the content of the polyvinyl alcohol resin is 2 to 20 weight parts when the total weight of the calcium-based material and the polyvinyl alcohol resin is 100 weight parts.

Abstract: A method of administering a drug whereby a fine drug powder can be accurately administered to a target site (in particular, a target site in the body cavity) via fluidization and spraying with a gas by using a micro tube. Concerning the administration mode, in particular, the drug alone or a biopolymer is administered or the biopolymer is employed as a carrier in the above method. More specifically speaking, a method of administering a fine drug powder which comprises finely milling one or more types fine particles of the drug and/or the biopolymer, blending them each other, fluidizing the blend with a gas, then transporting the fluidized matter in a micro tube by the gas stream and spraying the fine drug powder from the tip of the micro tube toward the target site.