Cleared Special

K122051 - NXSTAGE SYSTEM ONE

K122051 is an FDA 510(k) clearance for NXSTAGE SYSTEM ONE, manufactured by Nxstage Medical, Inc.. The device is a Class 2 Gastroenterology & Urology device with product code KDI cleared through the Special 510(k) pathway after a 285-day FDA review.

K122051 · Nxstage Medical, Inc. · Gastroenterology & Urology device
Download Printable Device Report (PDF) Official FDA 510(k) Summary (PDF)
Optimized for regulatory review, auditing and printing
Apr 2013
Decision
285d
Days
Class 2
Risk

K122051 is an FDA 510(k) clearance for the NXSTAGE SYSTEM ONE. Classified as Dialyzer, High Permeability With Or Without Sealed Dialysate System (product code KDI), Class II - Special Controls.

Submitted by Nxstage Medical, Inc. (Lawrence, US). The FDA issued a Cleared decision on April 23, 2013 after a review of 285 days - an extended review cycle.

This device falls under the Gastroenterology & Urology FDA review panel, regulated under 21 CFR 876.5860 - the FDA gastroenterology and urology device 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.

FDA 510(k) Submission Details - K122051

510(k) Number K122051 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received July 12, 2012
Decision Date April 23, 2013
Days to Decision 285 days
Submission Type Special
Review Panel Gastroenterology & Urology (GU)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
154d slower than avg
Panel avg: 131d · This submission: 285d
Pathway characteristics
Modification to existing cleared device.

KDI Device Classification - Class 2, Special Controls

Product Code KDI Dialyzer, High Permeability With Or Without Sealed Dialysate System
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 876.5860
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 Gastroenterology & Urology devices follow this clearance model.

Regulatory Peers - KDI Dialyzer, High Permeability With Or Without Sealed Dialysate System

All 333
Devices cleared under the same product code (KDI) and FDA review panel - the closest regulatory comparables to K122051.
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