WATER-INSOLUBLE POROUS PARTICLES OF BIOCOMPATIBLE SUBSTANCES AND PROCESS FOR PRODUCING THE SAME

摘要

Water-insoluble porous particles which contain no cross-linking agent are biologically compatible and porous, have a high elasticity, an excellent embolic effect for treating emboli and an excellent effect of aggregating platelets, and are therefore useful as a hemostatic substance. Because of being porous, these particles are expected to enable rapid recanalization in blood vessels after the treatment of emboli. These particles are produced by heating porous particles of a biocompatible substance in the form of a gel or a solid in a substantially moisture-free system so as to make them water-insoluble. These particles are also useful as a medicinal preparation carrier.