Patent ID: 9332957
Filing Date: 2016-05-10
CPC Classification: A61B

Claim Text:
1. An evaluation aid adapted to be used for taking a digital X-ray image thereof, wherein evaluation is carried out through the digital X-ray image, the evaluation aid comprising: a combined body having: a plate-like body including a plurality of regions having different X-ray absorption ratios; and block-like bodies provided on the plate-like body so as to correspond to the plurality of regions, respectively, each block-like body including a plurality of subregions having different X-ray absorption ratios, wherein each of the plurality of regions of the plate-like body has a part exposed from the block-like body provided thereon and to an outside of the combined body, the part existing so as to surround the block-like body, and each block-like body is also exposed to the outside of the combined body.