The FDA has cleared Accuray to market the CyberKnife M6 Series, a next-generation line of the company's radiosurgery system. The company also secured 510(k) clearance for the InCise Multileaf Collimator, which is used to tailor an X-ray beam to the dimensions of a tumor, and is designed to work with the new FM and FIM CyberKnife models.