The invention relates to a deformable endoscope that has one or more light/image transmission passages and in which at least one additional instrument is provided, wherein the unit of endoscope and additional instrument has a non-round cross-section along a longitudinal section (insertion section) to...http://www.google.ca/patents/US6878106?utm_source=gb-gplus-sharePatent US6878106 - Deformable fiberscope with a displaceable supplementary device
