21 CFR 892.5710 - Radiation therapy beam-shaping block.
(a) Identification. A radiation therapy beam-shaping block is a device made of a highly attenuating material (such as lead) intended for medical purposes to modify the shape of a beam from a radiation therapy source.
Title 21 published on 2014-04-01.
No entries appear in the Federal Register after this date, for 21 CFR Part 892.