Patent ID: 7963911

Claim:
A locomotive endoscope assembly for fluid supply to the interior of a portion of a tubular body portion comprising: an endoscope body; a locomotive endoscope head, adapted to allow pulling of the endoscope body through said tubular body portion, which is arranged at a distal end of said endoscope body, extends along a longitudinal axis and has a first selectably radially extendible sealing element and a second selectably radially extendible sealing element located distal to the first selectably radially extendible sealing element, wherein at least one of said first and second selectably radially extendible sealing elements is axially displaceable along the longitudinal axis with respect to the other, the distance between a proximal end of the first selectably radially extendible sealing element and a distal end of the locomotive endoscope head being fixed; the distal end of the locomotive endoscope head comprising one or more imaging sensors and a light source; a fluid passageway adapted for supplying fluid at a region radially outward of said locomotive endoscope head and intermediate said first and second selectably radially extendible sealing elements when said selectably radially extendible sealing elements are in radially extended sealing engagement with said tubular body portion; and a locomotive endoscope head controller controlling the operation of the locomotive endoscope head and being operative for controlling selectable extension of said first and second selectably radially extendible sealing elements, axial displacement of said at least one of said first and second selectably radially extendible sealing elements and fluid introduction through said fluid passageway.