ROENTGENOGRAPHIC EXPOSURE RULER Russian patent published in 2005 - IPC

FIELD: medical engineering.

SUBSTANCE: device has casing having fixed dials and indexes. The ruler has click unit mounted in the casing and controlled with Stop button and movable spring-loaded ruler movable transversely relative to longitudinally movable rulers each having two pins one of which is rigidly fixed on longitudinal ruler and the other one on the spring-loaded button end. The button is attached to longitudinal ruler and is movable along the ruler. The pins contact to the transverse ruler, one position allowing contact to its lateral surfaces and the other position to its bevels at not spring-loaded end. The transverse ruler is fixable to next step as a result of click unit entering into one of recesses next in turn. Indicating symbols are available on the transverse ruler, each corresponding to a longitudinal ruler and being sighted through a window available in the casing.

EFFECT: simplified operation method; excluded spoiled films; reduced risk of repeated patient irradiation.

4 dwg