X-ray or gamma ray systems or devices – Photographic detector support – Dental
Patent
1988-07-11
1989-12-12
Church, Craig E.
X-ray or gamma ray systems or devices
Photographic detector support
Dental
378206, G03B 4202
Patent
active
048872865
ABSTRACT:
An apparatus for assisting in the positioning of a dental X-ray generating unit for the creation of an X-ray image of an internal target portion of the mouth separated from the X-ray generating unit by a soft-tissue facial portion is composed of a substantially X-ray-transparent body adapted to be mounted in the path of the X-rays between the X-ray generating unti and the film element and an illumination source mounted to the body. The body has an outwardly-directed face positioned essentially perpendicular to the X-ray path and facing the soft-tissue facial portion between the X-ray source and target. The illumination source is positioned to direct at least one beam of light perpendicular to and outwardly from the body face towards the facial feature along the path of the X-rays generated by the generating unit to produce at least one light spot on the facial feature to serve as an orientation means for said X-ray unit. The apparatus may be dimensioned for positioning either within the mouth or affixed to the X-ray generator.
REFERENCES:
patent: 2659824 (1953-11-01), Burnham
patent: 3628021 (1971-12-01), MacDonald
patent: 3831031 (1974-08-01), Barrett et al.
patent: 4012638 (1977-03-01), Altschuler et al.
patent: 4100408 (1978-07-01), Marshall
patent: 4428029 (1984-01-01), Baliozian
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