the colon and for irrigation of the window provided at the optical head the source of this pressure is either compressed air or compressed carbon dioxide as seen in fig1 the apparatus is provided with a monitor 44 which is suitable to display images of the body channel viewed by the optical head as well as various information associated with functioning of the control system one should also bear in mind that within the insertion tube are provided various devices which are necessary for functioning of the colonoscopic apparatus these devices are known per se among such devices are for example vertebrae and strings which can be manipulated by the operation handle it should be appreciated that along the colonoscope extends a multi lumen tubing with appropriate passages for supplying water as required for irrigation of the colon carbon dioxide and sometime air as required for insufflation and vacuum as required for suction the multi lumen tubing also allows introduction of surgical instruments into the colon as might be required during the colonoscopic procedure the multi lumen tubing extends through the entire length of the insertion tube passes the handle and its proximal end 46 is connected to a dedicated connector 48 which is detachably connectable to a lateral port 50 provided on the handle the connector connects the proximal end of the multi lumen tubing with so called multichannel 52 extending along the umbilical cord it will be explained further with reference to fig2 a that the multichannel is fitted with tubes through which fluid media.