Apparatus for inspection and sampling in restricted aperture cavities employing fibre optics

Apparatus adapted to be held in the hand for inspecting a cavity of restricted aperture comprising, a housing having a proximal and a distal end, a handle on said housing intermediate said proximal and distal ends, said housing formed with an aperture extending from said proximal end to said distal end, first optical means in said handle for generating light, second optical means in said housing for collecting a visible image, image display means in said proximal end of said housing to display an image received from said second optical means, said display means being visible from the proximal end of said housing, an elongated sheath removably inserted in said housing through said aperture with said sheath extending out the proximal end of said handle and beyond the distal end of said housing, latch means in said housing and said sheath for detachably securing said sheath in position extending through said housing, said sheath formed with a first and a second longitudinal duct, said first duct comprising an unobstructed passage from end to end of said sheath, and formed to detachably receive an elongated fleche, said fleche formed to sample matter from said cavity when said sheath is inserted into said cavity, said second duct terminating at the distal end of said sheath in a transparent window flush with the distal end of said sheath, first fibre optic means in said second duct extending from said first optical means to said window to conduct light to illuminate said cavity outside said window, and second fibre optic means in said second duct extending from said window to said second optical means.