Apparatus for producing x-ray image projections

Details Apparatus for producing x-ray image projections Apparatus for producing x-ray image projections

H - Electricity

05

G

358/11

H05G 1/02 (2006.01) A61B 6/14 (2006.01)

Patent

CA 2010589

Abstract The invention relates to an apparatus for producing panoramic X-ray image projections from a dental arch shaped object or a cer- tain section thereof on an X-ray film. The apparatus comprises a fixed body (1), a movable supporting arm (11) whose oppo- site ends are fitted with an X-ray source (12) and a film holder 113) on the opposite sides of an object to be imaged. The appa- ratus further includes means (20-23) for producing a rotating motion of supporting arm (11) around the object, and means (2, 4 for setting the centre of rotating motion in linear movement in depence on the angular position of supporting arm (11). The appa- ratus further includes means (3, 6, 10) for selecting the direction of linear motion (translatory motion) as desired. Said selection means include: a rotary plate (3), which is journalled (9) to body (1) and to which is journalled (8) a linear plate (2) facilitating the linear motion; a motor (10), which is mounted on rotary plate (3) and which, by means of its associated pinion and a tooth rim (6) provided on body (1), translates said rotary plate (3) to a desired angular position; and means (19) for the deter- mination of a desired angular position.

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