or at the catheter 565 through an adjustment valve illustrated above so that only the requisite amount of force was utilized to maintain contact between the sensors 550 and the tissue being analyzed now coupled to the distal tip 560 of the catheter the tissue in addition to being analyzed by the sensors 550 may also be manipulated by the practitioner by moving the catheter at its proximate end not shown as required the tissue may be manipulated within the view of the optical sensor 530 once the required data was obtained by the sensors 550 the vacuum would be reduced until the tissue would be released from the orifices 540 if additional tissue testing was required the procedure would be repeated once the requisite testing was completed the distal tip 560 of the catheter 565 would be withdrawn back into the endoscope 510 so that it no longer extended outside of the endoscope 510 the endoscope 510 would then be removed from the body while a light 520 and an optical sensor 530 are shown at the end of the endoscope 510 other diagnostic components can also be placed at the end of the endoscope 510 to assist the practitioner for example the same electrical and ultrasonic sensors placed on the surface of the distal tip 560 of the catheter may also be placed on the distal end 595 of the endoscope 510 to provide additional sources of data to the practitioner during.