A tissue marker formed of a biodegradable polymer having drug-delivery capabilities is combined with a sealant that encapsulates the tissue marker and which serves to help anchor the tissue marker against migration. The sealant is delivered to a site in dehydrated form and moisture inherent in tissue...http://www.google.fr/patents/US7329414?utm_source=gb-gplus-shareBrevet US7329414 - Biodegradable polymer for marking tissue and sealing tracts
Biodegradable polymer for marking tissue and sealing tracts