The
CyberKnife is a frameless
robotic radiosurgery system used for treating benign tumors, malignant tumors and other medical conditions. The system was invented by
John R. Adler, a
Stanford University professor of neurosurgery and radiation oncology, and Peter and Russell Schonberg of Schonberg Research Corporation. It is made by the Accuray company headquartered in
Sunnyvale, California.