Patent ID: 9392991
Filing Date: 2016-07-19
CPC Classification: A61B

Claim Text:
1. An evaluation aid adapted to be used for taking a digital X-ray dynamic image thereof, wherein evaluation is carried out through the digital X-ray dynamic image, the evaluation aid comprising: a lower plate-like body including a plurality of regions having different X-ray absorption ratios; at least one upper movable body having a plurality of wire rods, wherein the at least one upper movable body is capable of moving with respect to the lower plate-like body in order that the plurality of wire rods traverse X-ray with which the lower plate-like body is being irradiated; and a driving portion which moves the at least one upper movable body with respect to the lower plate-like body, wherein the at least one upper movable body being replaceable with another upper movable body having a different structure from each other, and wherein at least one of the plurality of wire rods is further linearly segmented into linear wire rod segments having a spacing between each linear wire rod segment.