DEVICE FOR THE PROTECTION OF THE GONADS IN DIAGNOSTIC RADIOLOGY

摘要

1436030 Protection from X-rays E A GADE 30 Aug 1974 [8 Sept 1973 13 Feb 1974] 38122/74 Heading H5R To screen from X-rays the gonads of a patient undergoing diagnostic radiography, in the use of an X-ray tube fitted with a scattered radiation shield 4 and a collimator with light source to indicate the field of the X-ray beam, a fitting comprising longitudinal channel rails 9, e.g. of Al, and affixed transverse hollow arms 10, also e.g. of A1, is slipped on to the auxiliary attachment rails 6 provided with the X-ray apparatus, and carries in the slots in arms 10 an adjustable thin support strip 2 made from plastics transparent to light and X-rays and bearing within its thickness a plate, e.g. of lead, opaque to X-rays and of the shape necessary to block that part of the X-ray beam which would strike the gonads. The strip, at least twice as long as rails 9 and narrow compared with the length of the slots, is adjustable before exposure to bring the optical and thus the X-ray shadow over the critical area. Four alternative strips are provided, carrying respectively patterns for male and female adults and children (16, Figs. 4, 5, 6, 7, not shown). The strip is gripped in the slots by springs or by strips of pile fabric.