Evaluation of the impact of a bulk-loading sample sorting machine on analytical results of specimens

In this study, we developed a high-speed sample sorting system by integrating a previously developed Cartesian-arm-based high-speed sample sorting mechanism with an inlet for bulk-loaded sample tubes. The system enables automated sorting of bulk-loaded sample tubes into dedicated containers. To evaluate the impact of this system on test results, we first measured the acceleration applied to the tubes using sample tubes equipped with built-in accelerometers. We then compared the analytical results of blood samples from the same volunteer when the tubes were manually sorted and placed into analysis racks versus when they were sorted and placed using the developed system. This comparison was conducted to determine whether the sorting method affects the accuracy of the test results.