X-ray examination apparatus

Details X-ray examination apparatus X-ray examination apparatus

1992-10-29

1994-06-28

Church, Craig E.

X-ray or gamma ray systems or devices

Photographic detector support

For movable film or plate

378197, G03B 4202

Patent

active

053254139

ABSTRACT:
In an x-ray examination apparatus, a film holder is mounted on a frame, which itself is connected to the carrier, notably a C-arm, for the x-ray source and the image intensifier. When not in use, the film holder can be placed in a park position against the inner circumference of the C-arm, such that the film holder neither obscures, nor impedes access to the patient (region). The frame with the film holder can be rotated to a standby position next to the image intensifier, such that the film holder can be conveniently reached for preparation for exposure. Finally, the film holder can be rotated with respect to the frame into an exposure position in front of the image intensifier. The C-arm remains balanced for all three positions of the film holder; this is achieved by two counterweights that move along the outer circumference of the C-arm, just under its outer enclosure. Consequently, the C-arm can be moved manually without considerable effort. Because in its park position the film holder does not protrude beyond the outer circumference of the C-arm, the motion of the C-arm is not restricted by the film holder.

REFERENCES:
patent: 4358856 (1982-11-01), Stivender et al.
patent: 4363128 (1982-12-01), Grady et al.
patent: 4365343 (1982-12-01), Grady et al.
patent: 4761805 (1988-08-01), Sebring
patent: 4879736 (1989-11-01), Bergman et al.
patent: 5111496 (1992-05-01), Van Es et al.

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