X-ray examination apparatus

Details X-ray examination apparatus X-ray examination apparatus

1978-09-18

1980-11-04

Church, Craig E.

Radiant energy

Luminophor irradiation

Self-luminous article

250402, G03B 4116

Patent

active

042322278

ABSTRACT:
The disclosure relates to an x-ray examination apparatus comprising an examination table, a patient support platform resting on the examination table, an x-ray source, a remotely directed collimator for restricting the radiation beam according to cassette size (film format), a longitudinal transport carriage movable along the length of the patient support platform, and a cassette drawer capable of insertion in the longitudinal transport carriage, with clamping jaws for the purpose of the support-mounting of an insertable x-ray film cassette. In order to render possible a free removal of the cassette drawer during fluoroscopy, in spite of the necessary transmission of the scanned cassette dimensions for the purpose of collimator adjustment during radiography, the longitudinal transport carriage carries two sensors, coupled with one mechanical-electrical transducer each, for sensing the length and width of the x-ray film cassette clamped in the inserted cassette drawer. The sensors are resiliently urged to a rest position clear of the image intensifier, while being actuated by cassette insertion to assume their respective sensing positions.

REFERENCES:
patent: 3764808 (1973-10-01), Lackey et al.
patent: 3976887 (1976-08-01), Holzermer et al.
patent: 3986034 (1976-10-01), Wittkopp et al.

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