Patent ID: 7217241

Claim:
Device for medical use and particularly for use by a dentist of which the main element is a direct view rigid video-endoscope ( 1 ) supported by an articulated and compensated arm ( 2 ), comprising: A—a direct view rigid video-endoscope ( 1 ) having a central optical entry axis ( 5 ). a signal-accumulating image-taking device with a CCD catcher ( 4 ), said endoscope ( 1 ) further characterized by a grip ( 3 ) possessing a proximal and a distal end ( 28 ), an optical tube ( 10 ), said optical tube extending into the distal end ( 28 ) of said grip ( 3 ), said optical tube further being coaxial with said grip ( 3 ), said optical tube ( 10 ) being realized to provide an image of the object examined ( 7 ) on the plane of the CCD catcher ( 4 ), the imaging being directed along the central optical entry axis ( 5 ) of the video-endoscope ( 1 ); B—a sleeve ( 9 ) which is moveable and covers the optical tube ( 10 ) and which allows a 90° deviated view to be obtained and a field of view to be illuminated, the sleeve ( 9 ) being coaxial with the optical tube ( 10 ), a 90° transmission device of the sleeve ( 9 ) being realized with a total reflection prism ( 126 ) at its distal end ( 125 ), the axis of an exit face ( 131 ) of the prism ( 126 ) coinciding with the axis ( 5 ) of the optical tube ( 10 ) and a light source ( 60 ) consisting of a plurality of lamps ( 127 ), said lamps possessing a base portion and a emitter portion and are arranged around an entry face ( 129 ) of the prism ( 126 ), with axis/es ( 128 ) of the lamp/s ( 127 ) perpendicular to said entry face ( 129 ) of the prism ( 126 ); C—the sleeve ( 9 ) capable of sliding on the optical tube ( 10 ), capable of rotating freely upon itself and capable of being locked in a distal end ( 28 ) of the grip ( 3 ) of the video-endoscope ( 1 ); D—a mobile sleeve ( 107 ) capable of sliding on the optical tube ( 10 ) intended for examining radiographs on a control screen; E—a compensated articulated arm ( 2 ) which carries, fixed at its distal end ( 122 ), a support ( 35 ) upon which the video-endoscope ( 1 ) is locked, a compensated part ( 36 ) of the arm ( 2 ) being mobile in a vertical plane and carrying, in a distal end ( 37 ) a tube ( 38 ) free to rotate upon itself about an axis ( 39 ), which remains vertical whatever the position of the compensated part ( 36 ), a portion ( 40 ) of the compensated part ( 36 ) remaining constantly in the horizontal plane ( 41 ) whereas the distal end ( 37 ) is able to move vertically; F—an electronic plate ( 123 ) arranged in a command box ( 124 ) equipped with command buttons ( 51 ), characterized in that the device comprises a generator ( 93 ) adapted to provide an air flow ( 92 ) to cross the grip ( 3 ) of the endoscope, and the distal end ( 28 ) of the grip ( 3 ) comprises a plurality of small openings ( 8 ) arranged annularly between the distal end of said grip and said optical tube at the base of the optical tube ( 10 ) for dispensing the air flow ( 92 ).