A biopsy apparatus includes a cannula having a closed distal end. An orifice is located on a circumferential surface of the cannula. The orifice is configured to receive a tissue sample into a lumen of the cannula. A cutting sheath is slidably and coaxially disposed over the cannula. The cutting sheath...http://www.google.de/patents/US7959580?utm_source=gb-gplus-sharePatent US7959580 - Quick cycle biopsy system
