Patent ID: 8876730

Claim:
Apparatus for use in a gastrointestinal tract of a patient comprising an endoscope, said endoscope, comprising: an inflatable device, configured to be moved through the gastrointestinal tract to a treatment site, in response to a difference between fluid pressure proximal to the inflatable device and fluid pressure distal to the inflatable device, such that said apparatus is advanced distally by application of said fluid pressure proximal to said inflatable device; an optical system, coupled to the inflatable device, and configured to image the gastrointestinal tract in a certain field of view; a working channel being shaped to define a channel lumen therein to provide access from outside of the patient to the treatment site, said working channel passing through a hole in the inflatable device; a multi-lumen supply cable at least a portion of which is disposed within the inflatable device in said working channel, said multi lumen supply cable comprising: a first lumen of supply cable configured for passage therethrough of an electrical cable; and a plurality of additional lumens; a cable passing through one of said additional lumens, said cable comprising a hollow tube passing therethrough, the hollow tube having a shape that defines at least one tool lumen for advancement therethrough of a tool comprising a tool steering mechanism configured and operable to direct the tool, being advanced towards a treatment site through said tool lumen, to substantially any site of the gastrointestinal tract within said field of view of said optical system to facilitate steering of the tool from outside of a body of the patient; and wherein at least one additional lumen being in fluid communication with the inside of the inflatable device; and wherein the additional lumens are configured for at least one of the following: supplying water to said gastrointestinal tract, controlling pressure inside said inflatable device, sensing pressure inside said inflatable device, and sensing gastrointestinal tract pressures distal to said apparatus.