Motion mechanism of X-ray film in panoramic radiography

Details Motion mechanism of X-ray film in panoramic radiography Motion mechanism of X-ray film in panoramic radiography

1979-02-05

1980-04-15

Church, Craig E.

Radiant energy

Fluent material containment, support or transfer means

With irradiating source or radiating fluent material

250468, G11B 100

Patent

active

041985664

ABSTRACT:
This invention relates to a motion mechanism for moving an X-ray film in a panoramic X-ray machine in a predetermined pattern and rate of travel relative to a source of radiation. The mechanism includes a cassette holder on which is carried a rotatable rod or roller driven by a traction wheel, a lever assembly for changing the drive angle between the traction wheel and the rod and a moving or rotatable supporting column or structure on which the motion mechanism is mounted. The panoramic X-ray machine also has a radiation source suspended from one end of the supporting structure at a position opposite the cassette holder. The object o patient to be radiographed is placed between the radiation source and the cassette holder and the supporting structure is rotated at a selected rotational speed about the object.

REFERENCES:
patent: 2798958 (1957-07-01), Hudson
patent: 3867636 (1975-02-01), Miyahara

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