Cleared Traditional

K233159 - pureFLOW 402, pureFLOW 400, pureFLOW 406, pureFLOW 401, pureFLOW 502, pureFLOW 504 (FDA 510(k) Clearance)

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

K233159 · Fresenius Medical Care Renal Therapies Group, LLC · Gastroenterology & Urology device
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Dec 2023
Decision
65d
Days
Class 2
Risk

K233159 is an FDA 510(k) clearance for the pureFLOW 402, pureFLOW 400, pureFLOW 406, pureFLOW 401, pureFLOW 502, pureFLO.... Classified as Dialysate Concentrate For Hemodialysis (liquid Or Powder) (product code KPO), Class II - Special Controls.

Submitted by Fresenius Medical Care Renal Therapies Group, LLC (Waltham, US). The FDA issued a Cleared decision on December 1, 2023 after a review of 65 days - a notably fast clearance cycle.

This device falls under the Gastroenterology & Urology FDA review panel, regulated under 21 CFR 876.5820 - the FDA gastroenterology and urology device 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 Fresenius Medical Care Renal Therapies Group, LLC devices

Submission Details

510(k) Number K233159 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received September 27, 2023
Decision Date December 01, 2023
Days to Decision 65 days
Submission Type Traditional
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
65d faster than avg
Panel avg: 130d · This submission: 65d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code KPO Dialysate Concentrate For Hemodialysis (liquid Or Powder)
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 876.5820
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 - KPO Dialysate Concentrate For Hemodialysis (liquid Or Powder)

All 122
Devices cleared under the same product code (KPO) and FDA review panel - the closest regulatory comparables to K233159.
NaturaLyte® Dry Bicarbonate Concentrate (08-4112-2)
K253462 · Fresenius Medical Care Renal Therapies Group, LLC · Jan 2026
Bicarby Dialysate RFP-404 (RFP-404-W)
K252180 · Fresenius Medical Care Renal Therapies Group, LLC · Sep 2025
Bicarby Dialysate RFP-402 (RFP-402-G)
K243786 · Fresenius Medical Care Renal Therapies Group, LLC · Apr 2025
HemoCare Bicarbonate Concentrate Set (BCS)
K240920 · Deka Research and Development · Jul 2024
pureFLOW 402 (F00012067)
K233950 · Fresenius Medical Care Renal Therapies Group, LLC · May 2024
NxStage PureFlow Solution
K233213 · Nxstage Medical, Inc. · Jan 2024