An endosocope head 1, a control pedal 3, a micro-computer 4, an image storage system 5 and a visual display screen 6 are linked to a microprocessor 2 which is under the control of a program controlling the scrolling of images, comparing the orientation angles imposed by the user and the reference angles from the endoscopy sequence, and, in the case of error, stopping the scrolling and displaying error messages. IMAGE
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