Milestone's KOS, as an innovative device for rapid processing of tissue samples in tissue pathology laboratories, utilizes the perfect combination of microwave excitation terminal energy, time, and temperature to ensure rapid and continuous tissue processing, enabling same day processing/diagnosis. It can process 45 or 110 samples at once, combined with certain components, and can also be used for rapid antigen repair, decalcification, gross organ pre fixation, tissue chemical staining, and fixation.