# K000478: The Cyberknife System for Stereotactic Radiosurgery/ Radiotherapy V2.1

- Pathway: 510(k) (Special)
- Applicant: Accuray, Inc.
- Decided: Apr 19, 2000 after 65 days
- Product code: IWB (System, Radiation Therapy, Radionuclide)
- Device class: 2
- Regulation: 21 CFR 892.5750
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
1 later device descends from it; 1 cites it directly.
0 of 2 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA has not posted a summary or statement for it, so its predicates are not known.

## Most influential descendants
- K092928: Dose Volume Histogram (DVH) Evaluator (2009), 0 descendants of its own

Source page: https://510kreport.com/device/K000478
Methodology: https://510kreport.com/methodology