DEVICE FOR REDUCING RADIATION LOADING IN PERFORMING X-RAY PNEUMOPOLYGRAPHIC EXAMINATION Russian patent published in 1998 - IPC

FIELD: medical engineering. SUBSTANCE: device has X-ray radiation source, electric motor connected to working sectors, X-ray pneumopolygraphic and filtering rasters to enable patient to be placed between them, film holder with luminophore (phosphor) amplifying screens. Cyclocollimator for protecting against X-ray radiation is placed between the X-ray radiation source and X-ray pneumopolygraphic raster, the collimator being designed as casing with electric motor and cyclocollimation disk mounted in the casing. The disk has collimating working sectors, starter and synchronization regulator. EFFECT: lower level of diffuse radiation and radiation load applied to patient. 3 dwg