510(k) Report

510(k) · Cleared

Recalled · 2008

Bicarbonate Dialysate Concentrate Mixer, Model 50 Gallon & 100 Gallon

K022521510(k) TraditionalCleared Jan 3, 2003157-day reviewClass II21 CFR 876.5820Recalls 2

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Rockwell Medical Technologies, Inc. · KPO Dialysate Concentrate For Hemodialysis (Liquid Or Powder)

Cleared on Jan 3, 2003 after a 157-day review. The FDA summary names its predicate without a number. It has been recalled 2 times.

Decided
Jan 3, 2003
Review
157 days
Class
Class II
Product code
KPO
Recalls
2
Predicates
0

The FDA summary names its predicate without a number.

FIG. 1 — Lineage of K022521Source: FDA 510(k) database · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in KPO? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

Top candidate predicates for a new KPO device

  1. #1 K233159 pureFLOW 402, pureFLOW 400, pureFLOW 406…score 14.5 · 8 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
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What was it cleared against? (2)

Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.

TypeNumberDeviceApplicantDecidedRecalls
*—Rockwell Medical Technologies Dri-Sate Mixer for Dri-Sate acid concentrate solutions
Named without a submission number
—
*—Fresenius USA, Inc. Hemodialysis Concentration Dissolution Unit P/N 89-290-09
Named without a submission number
—
†K954527Rockwell Medical Supply LLC Hemodialysis Concentrate Solutions & PowdersRockwell Medical Supply19963

What descends from it?

No later submission names this one as a predicate yet.

Has anything in its family been recalled? (0 Class I)

Recalls of this device

DateClassRecallRoot causeReason
Sep 29, 2008Not classifiedZ-0440-2009Environmental controlMicrobial growth was observed in the retain samples of 4 lots of Liquid Bicarbonate after products had been distributed.
Sep 29, 2008Not classifiedZ-0439-2009Environmental controlMicrobial growth was observed in the retain samples of 4 lots of Liquid Bicarbonate after products had been distributed.

No ancestor or descendant has a Class I recall.

How does its category compare?

All KPO devices

KPO Dialysate Concentrate For Hemodialysis (Liquid Or Powder): FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · KPO

2in 2025

2007: 22008: 22009: 12011: 12012: 22013: 12014: 22015: 12016: 12017: 32018: 22020: 52021: 12022: 22023: 32024: 32025: 22026 (partial year): 2
2007high 5 (2020) · low 0 (2010)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · KPO

112in 2024

2017: 192 days median2020: 270 days median2023: 263 days median2024: 112 days median
2007high 270 (2020) · low 112 (2024)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · KPO

6in 2025

2007: 52008: 22009: 12011: 22012: 102015: 32016: 12017: 12018: 112019: 12020: 312022: 22024: 12025: 62026 (partial year): 9
2007high 31 (2020) · low 0 (2010)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · KPO

95in 2025

2007: 52008: 82009: 32010: 1072011: 2232012: 702013: 3,8972014: 15,9162015: 8,3402016: 2402017: 802018: 972019: 792020: 2442021: 632022: 252023: 592024: 2592025: 95
2007high 15,916 (2014) · low 3 (2009)2025

MAUDE reports naming product code KPO, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20072—55
20082—28
20091—13
20100—0107
20111—2223
20122—1070
20131—03,897
20142—015,916
20151—38,340
20161—1240
20173192180
20182—1197
20190—179
2020527031244
20211—063
20222—225
20233263059
202431121259
20252—695
20262—9—

What is it indicated for?

The Rockwell Medical Technologies' Bicarbonate Dialysate Concentrate Mixer is designed to

mix the Rockwell Medical Technologies Concentrate Powders for Bicarbonate Dialysis with

purified water to produce a bicarbonate concentrate solutions for hemodialysis for use in 3-

stream (acid concentrate, bicarbonate concentrate, and water) hemodialysis machines /

monitors. The Rockwell Medical Technologies, Inc Concentrate Powders for Bicarbonate

Dialysis which are mixed with water in the Bicarbonate Dialysate Concentrate Mixer are

indicated for use in acute and chronic hemodialysis.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K022521: Bicarbonate Dialysate Concentrate Mixer, Model 50 Gallon & 100 Gallon.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K022521

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Record history
  • FDA decision record loaded May 2, 2026
  • Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
  • Page last updated Nov 3, 2026