China NMPA Product Recall - Medical linear accelerator

The National Medical Products Administration (NMPA) issued a medical device recall report on November 3, 2010, pertaining to Medical Linear Accelerators manufactured by Varian Medical Systems, Inc. This recall specifically targeted six units of Clinac 23EX 2300C/D and Clinac 21EX 2100C/D models, which had been imported and sold within China. The core issue identified was that on certain improperly configured systems, advanced radiotherapy treatments such as RapidArc ™ and VVMAT could inadvertently execute as dynamic rotations. While no patient harm or damage was assessed at the time of the report, this operational deviation highlighted a critical safety matter given the precision required for medical linear accelerators in patient radiotherapy. Varian Medical Device Trading (Beijing) Co., Ltd., as the responsible entity in China, managed the recall process under the NMPA's regulatory framework for medical devices. The mandated corrective action involved the Varian China Customer Support Center promptly dispatching an "Emergency Notice on On-Site Safety Matters" to all relevant users across China. This crucial communication was designed to inform users of the potential configuration anomaly and guide them on necessary steps to ensure proper system functionality. The report confirmed that this notification plan had been successfully implemented and completed, thereby mitigating the identified risk and reinforcing patient safety standards.