A biopsy device includes a flexible distal portion for obtaining a biopsy sample from a biopsy site. The device includes a caring cannula with a wall defined between a proximal end and a distal end and defining a lumen therebetween. The wall of the cannula defines a coring relief notch adjacent the distal...http://www.google.ca/patents/US20060184153?utm_source=gb-gplus-sharePatent US20060184153 - FLEXIBLE TIP MEDICAL INSTRUMENT
