The present invention relates to a technique to absorb a speed difference between a data transmissionreception unit, included in a host device which has a interface controller, and a data transmissionreception unit with a external device. The device uses a manually operated transmission to move the video camera across a line at a speed controlled by the user. To effect a greater compression of the stapled tissue, the legs can include a penetrative portion adjacent the tip and a compressive structure which, due to its increased height relative to that of the penetrative portion, spreads the compressive forces of the staple further along the length of the incision being closed. The illumination assembly is arranged to be brought from a packaged condition to the set up condition and vice versa.