Cleared Special

K001833 - PREFERENCE TREATMENT SYSTEM (FDA 510(k) Clearance)

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

K001833 · Northwest Medical Physics Equipment, Inc. · Radiology device
Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
Sep 2000
Decision
104d
Days
Class 2
Risk

K001833 is an FDA 510(k) clearance for the PREFERENCE TREATMENT SYSTEM. Classified as Accelerator, Linear, Medical (product code IYE), Class II - Special Controls.

Submitted by Northwest Medical Physics Equipment, Inc. (Lynnwood, US). The FDA issued a Cleared decision on September 28, 2000 after a review of 104 days - within the typical 510(k) review window.

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. Standard predicate reliance. This Special 510(k) clearance confirms that the manufacturer's modifications remained within the established regulatory envelope of the original cleared device.

View all Northwest Medical Physics Equipment, Inc. devices

Submission Details

510(k) Number K001833 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received June 16, 2000
Decision Date September 28, 2000
Days to Decision 104 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
3d faster than avg
Panel avg: 107d · This submission: 104d
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

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