An endoscope has a first bending portion, a second bending portion, and a hand-held unit. The first bending portion is the distal portion of an elongated insertion member and has a plurality of joint pieces concatenated so that the joint pieces can rotate freely. The second bending portion is located...http://www.google.ca/patents/US6899673?utm_source=gb-gplus-sharePatent US6899673 - Endoscope
