Cleared Special

K000478 - THE CYBERKNIFE SYSTEM FOR STEREOTACTIC RADIOSURGERY/ RADIOTHERAPY V2.1 (FDA 510(k) Clearance)

Class II Radiology device cleared through the Special 510(k) pathway - typically does not require clinical trials.

K000478 · Accuray, Inc. · Radiology device
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Apr 2000
Decision
65d
Days
Class 2
Risk

K000478 is an FDA 510(k) clearance for the THE CYBERKNIFE SYSTEM FOR STEREOTACTIC RADIOSURGERY/ RADIOTHERAPY V2.1. Classified as System, Radiation Therapy, Radionuclide (product code IWB), Class II - Special Controls.

Submitted by Accuray, Inc. (Sunnyvale, US). The FDA issued a Cleared decision on April 19, 2000 after a review of 65 days - a notably fast clearance cycle.

This device falls under the Radiology FDA review panel, regulated under 21 CFR 892.5750 - the FDA radiology and imaging software oversight framework. As a Special 510(k), this submission covers a manufacturer modification to an existing cleared device rather than a new device introduction.

Device pattern: Iterative device modification. Low regulatory complexity profile. This Special 510(k) clearance confirms that the manufacturer's modifications remained within the established regulatory envelope of the original cleared device.

View all Accuray, Inc. devices

Submission Details

510(k) Number K000478 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received February 14, 2000
Decision Date April 19, 2000
Days to Decision 65 days
Submission Type Special
Review Panel Radiology (RA)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
42d faster than avg
Panel avg: 107d · This submission: 65d
Pathway characteristics
Modification to existing cleared device.

Device Classification

Product Code IWB System, Radiation Therapy, Radionuclide
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 892.5750
What this classification means

Class II devices require demonstration of substantial equivalence to a legally marketed predicate device. This pathway does not require clinical trials - it relies on engineering equivalence and performance data. Most Radiology devices follow this clearance model.