A surgical apparatus for removing tissue, which includes (i) an elongated body defining an opening at a distal end and forming a tissue receiving cavity in communication with the opening (ii) a blunt dilator at least partially disposed in the tissue receiving cavity and (iii) a cutting member...http://www.google.de/patents/US5817034?utm_source=gb-gplus-sharePatent US5817034 - Apparatus and method for removing tissue
