An endoscope system comprises plural video processor devices for an endoscope prepared for every video endoscope, a video signal switching device connected to each of the video processor devices for an endoscope, and a monitor connected to the video signal switching device. The video signal switching...http://www.google.de/patents/US6246432?utm_source=gb-gplus-sharePatent US6246432 - Video signal switching device for endoscope system
