Cleared Special

K050442 - MILLENNIUM MULTI-LEAF COLLIMATOR

K050442 is the FDA 510(k) clearance for MILLENNIUM MULTI-LEAF COLLIMATOR by Varian Medical Systems. It is a Class 2 Radiology device (product code IYE) cleared through the Special 510(k) pathway after a 29-day FDA review.

K050442 · Varian Medical Systems · Radiology device
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Mar 2005
Decision
29d
Days
Class 2
Risk

K050442 is an FDA 510(k) clearance for the MILLENNIUM MULTI-LEAF COLLIMATOR. Classified as Accelerator, Linear, Medical (product code IYE), Class II - Special Controls.

Submitted by Varian Medical Systems (Palo Alto, US). The FDA issued a Cleared decision on March 23, 2005 after a review of 29 days - a notably fast clearance cycle.

This device falls under the Radiology FDA review panel, regulated under 21 CFR 892.5050 - 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 Varian Medical Systems devices

Submission Details

510(k) Number K050442 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received February 22, 2005
Decision Date March 23, 2005
Days to Decision 29 days
Submission Type Special
Review Panel Radiology (RA)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
78d faster than avg
Panel avg: 107d · This submission: 29d
Pathway characteristics
Modification to existing cleared device.

Device Classification

Product Code IYE Accelerator, Linear, Medical
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 892.5050
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.

Regulatory Peers - IYE Accelerator, Linear, Medical

All 316
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