This invention relates to an operation device especially intended to proceed with an operation inside the body of a living being. This device (10) comprises a control handle and a flexible element (12) provided with a proximal end connected to this control handle. The flexible element (12) comprises at a distal end (14), a steerable area comprising a rigid head. The control handle comprises a control lever arranged for controlling said steerable area (17) of this flexible element. The device of the invention is characterized in that the flexible element (12) comprises at its distal end (14), a retractable tool (21), and this retractable tool being arranged to be operated by said control handle.
