A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
95/44, 95/85, 95
A61B 6/14 (2006.01)
Patent
CA 1246921
ABSTRACT OF THE DISCLOSURE Apparatus for panoramic X-ray photography of the area of the dentition and the jaws has a bearing part linearly movable in relation to a frame part, and a support arm rotatably attached by bearings to the bearing part with, at opposite ends an X-ray film and a source of X-radiation. The movements of the bearing part, the support arm and the film are mutually synchronized so that an image of, for example, an area the shape of the patient's dental arch, is obtained on the film during the movement. The X-ray beam can be tilted to the desired angle in relation to the horizontal plane, whereby it is possible to photograph with greater sharpness than previously, for example, slanted teeth. The support arm is attached with bearings to the bearing part 80 as to be tiltable about an axis perpendicular to the rotational axis of the support arm so that, when the rotational axis is vertical, the straight line connecting the source of radiation and the film is oblique to the horizontal level. The structural parts between the bearing part and the support arm have curved guide means which work in conjunction with each other and the mutual movement of which alters the tilt position of the support arm. The control movements are preferably performed by means of a stepping motor.
473330
Aarnio Jaakko
Kanerva Heikki
Laner Kai
Tammisalo Erkki
Wwderhorn Markku
G. Ronald Bell & Associates
Instrumentarium Corporation
LandOfFree
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