A medical endoscope with sealed housing and receiving an electrically powered and/or controlled system, further comprising an installed light guide sealed against the ambience and fitted with electric/light (E/L) transducers at one end, is characterized in that a light/electricity (L/E) transducer is...http://www.google.de/patents/US6458078?utm_source=gb-gplus-sharePatent US6458078 - Endoscope fitted with an electric system and a light guide
