A bioabsorbable sealant plug that expands in response to contact with moisture in a mammalian body is optimally positioned in a biopsy tract to seal the biopsy tract when a biopsy procedure is completed. In a first method, the leading end of the sealant plug is advanced through the lumen of a coaxial...http://www.google.fr/patents/US20050228309?utm_source=gb-gplus-shareBrevet US20050228309 - Sealant Plug Delivery Methods
