A rigid video endoscope, fitted with a tube unit (1) comprising a metallic outer tube (2, 2′) sealed off distally by a window (3) and a metallic inner tube (4, 4′) which supports a video camera (5) and an objective (6) in its distal end segment (4), said tube unit being fitted with a proximal terminal part (12) wherein the proximal end segment (4′) of the inner tube (4, 4′) is sealed off by a glass fusion element (7) that is traversed by fusion-imbedded metal contact pins (8) of which the inward ends are connected by conductors (10) to contact pins (9) of the video camera (5) and wherein the proximal end segment (2′) of the outer tube (2, 2′) is hermetically connected to the proximal end segment (4′) of the inner tube (4, 4′), the outer tube (2, 2′) being electrically insulated at least at its distal end segment (2) from the inner tube (2, 2′), is characterized in that the proximal end segments (2′, 4′) of the two tubes (2, 2′; 4, 4′) are connected in the terminal part (12) by means of an annular glass fusion element (11),