Cleared Traditional

K112446 - TOMOTHERAPY TREATMENT SYSTEM

K112446 is an FDA 510(k) clearance for TOMOTHERAPY TREATMENT SYSTEM, manufactured by Tomotherapy Incorporated. The device is a Class 2 Radiology device with product code MUJ cleared through the Traditional 510(k) pathway after a 44-day FDA review.

K112446 · Tomotherapy Incorporated · Radiology device
Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
Oct 2011
Decision
44d
Days
Class 2
Risk

K112446 is an FDA 510(k) clearance for the TOMOTHERAPY TREATMENT SYSTEM. Classified as System, Planning, Radiation Therapy Treatment (product code MUJ), Class II - Special Controls.

Submitted by Tomotherapy Incorporated (Madison, US). The FDA issued a Cleared decision on October 7, 2011 after a review of 44 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. The Traditional 510(k) pathway establishes clearance through substantial equivalence to a legally marketed predicate device, without requiring clinical trial data.

Device pattern: Fast-track predicate clearance. Standard predicate reliance. The short review cycle indicates strong predicate alignment - the FDA found sufficient equivalence without extended technical review.

View all Tomotherapy Incorporated devices

FDA 510(k) Submission Details - K112446

510(k) Number K112446 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received August 24, 2011
Decision Date October 07, 2011
Days to Decision 44 days
Submission Type Traditional
Review Panel Radiology (RA)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
63d faster than avg
Panel avg: 107d · This submission: 44d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

MUJ Device Classification - Class 2, Special Controls

Product Code MUJ System, Planning, Radiation Therapy Treatment
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 - MUJ System, Planning, Radiation Therapy Treatment

All 161
Devices cleared under the same product code (MUJ) and FDA review panel - the closest regulatory comparables to K112446.
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