Bi-plane angiographic apparatus

Details Bi-plane angiographic apparatus Bi-plane angiographic apparatus

1980-10-31

1982-07-13

Church, Craig E.

Radiant energy

Radiant energy generation and sources

With container for radioactive source and radiation...

G03B 4116

Patent

active

043398251

ABSTRACT:
Angiography apparatus has an L-arm rotatable about a vertical axis and a U-arm mounted on the upstanding section of the L-arm for rotation about a horizontal axis. An X-ray source is at one end of the U-arm and image receptors including an image intensifier and a first film changer are at the other end to enable making posterior-anterior and anterior-posterior X-ray views at various angles relative to a patient who is located on the isocenter which is the intersection of the horizontal, vertical and X-ray beam axis. A second film changer for making lateral generally isocentric views is mounted within the U-arm on a stand that is movable along the horizontal U-arm axis to allow obtaining various distances between the image plane of the film and another X-ray source. The lateral changer is on a mechanism for shifting it vertically and longitudinally a limited amount and for rotating it with a motor so this changer will stay level until the U-arm has been tilted through a predetermined angle. After this angle is reached motorized rotation is discontinued and the lateral changer is allowed to rotate with the U-arm.

REFERENCES:
patent: 3549885 (1970-12-01), Andersson
patent: 3659099 (1972-04-01), Bertheau
patent: 3803418 (1974-04-01), Holstrom
patent: 3892967 (1975-07-01), Grady

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