A method for embolization treatment was developed in which microspheres with novel properties are administered in a mammal. The microspheres are made using a novel process that results in microspheres with new combined properties of high density, low fracture, high swell capacity, rapid swell, and deformability...http://www.google.de/patents/US8062673?utm_source=gb-gplus-sharePatent US8062673 - Process for embolization using swellable and deformable microspheres
