The present invention relates to an endoscope, more specifically to an endoscope that provides both forward view and rear view of a hollow body organ. It comprises of a rear view module that contains a rear image lens and a rear illumination bulb. The rear view module is designed and is attached to a...http://www.google.ca/patents/US20050038317?utm_source=gb-gplus-sharePatent US20050038317 - Dual View Endoscope
