The invention is directed to a biodegradable implant precursor having a two-part structure made of an outer sac and a liquid content. The implant precursor is composed of a biodegradable, water-coagulable thermoplastic polymer and a water-miscible organic solvent. When administered to an implant site...http://www.google.com.au/patents/US5660849?utm_source=gb-gplus-sharePatent US5660849 - Apparatus for forming a biodegradable implant precursor
