China NMPA Product Recall - Radiotherapy Information System

The National Medical Products Administration (NMPA) of China published a recall event report on November 3, 2010, concerning the Radiotherapy Information System manufactured by Varian Medical Systems, Inc., with its Chinese operations managed by Varian Medical Device Trading (Beijing) Co., Ltd. The recall impacts 81 units of the ARIA model/specification and 4D Integrated Treatment Console, utilized in clinical oncology for managing patient treatment. The central issue arises when the ARIA 4D Integrated Treatment Console is used with BrainLAB's Novalis 'Classic' SRS system. In this specific configuration, BrainLAB's cone aperture is erroneously defined as a wedge plate within the treatment model. This critical flaw could lead to inaccuracies in treatment planning or delivery, potentially endangering patient safety during radiation therapy. Under the regulatory framework of the NMPA, Varian China's Customer Support Center was required to issue an 'Emergency Notice on On-site Safety Matters' to all affected Chinese users. This notification, which has been successfully completed, serves to inform users of the potential hazard and guide them on necessary precautions to mitigate risks.