Watchdog Circuitry of a Surgical Robot Arm

EPO published patent application EP4110222A1 for CMR Surgical Limited's watchdog circuitry for surgical robot arms on March 25, 2026. The invention covers safety monitoring and fault detection systems for robotic surgical arms, with IPC classifications spanning surgical robotics (A61B 34/37, A61B 34/20), robotic mechanisms (B25J 13/08, B25J 17/00), and surgical apparatus (A61B 90/00). The patent grants exclusive rights in designated states including all EU member states plus CH, LI, NO, TR, UK, and others.

Medical device manufacturers and surgical robotics developers should conduct freedom-to-operate analyses before commercializing similar watchdog or safety circuit technologies in Europe. While patent publication does not itself create compliance obligations, it establishes prior art that may affect future patent applications in this technical space. The geographic scope covers 31 designated states across Europe.