Cleared Traditional

RADIONICS XKNIFE RT 3 WITH NON STEREOTACTIC MODULE (K041997) - FDA 510(k) Clearance

Class II Radiology device cleared through predicate-based substantial equivalence - typically does not require clinical trials.

K041997 · Radionics, A Division of Tyco Healthcare Group LP · Radiology device
Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
Aug 2004
Decision
32d
Days
Class 2
Risk

K041997 is an FDA 510(k) clearance for the RADIONICS XKNIFE RT 3 WITH NON STEREOTACTIC MODULE. Classified as System, Planning, Radiation Therapy Treatment (product code MUJ), Class II - Special Controls.

Submitted by Radionics, A Division of Tyco Healthcare Group LP (Burlington, US). The FDA issued a Cleared decision on August 27, 2004 after a review of 32 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 Radionics, A Division of Tyco Healthcare Group LP devices

Submission Details

510(k) Number K041997 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received July 26, 2004
Decision Date August 27, 2004
Days to Decision 32 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
75d faster than avg
Panel avg: 107d · This submission: 32d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

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 106
Devices cleared under the same product code (MUJ) and FDA review panel - the closest regulatory comparables to K041997.
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SIEMENS VIRTUAL SIMULATION (VSIM)
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K002312 · Varian Medical Systems, Inc. · Aug 2000