510(k) Report

510(k) · Cleared

Cleared

Water Purification System for Hemodialysis

K002045510(k) TraditionalCleared Feb 16, 2001226-day reviewClass II21 CFR 876.5665

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

Total Water Treatment Systems, Inc. · FIP Subsystem, Water Purification

Cleared on Feb 16, 2001 after a 226-day review. FDA has not posted a summary or statement for it, so its predicates are not known. 12 later devices descend from it.

Decided
Feb 16, 2001
Review
226 days
Class
Class II
Product code
FIP
Recalls
None
Predicates
0

12 later devices descend from it, 2 citing it directly.

Descendants, by year cleared 2004: 1 descendant cleared2002: 1 descendant cleared2016: 3 descendants cleared2014: 1 descendant cleared2019: 2 descendants cleared2018: 1 descendant cleared2023: 1 descendant cleared2017: 1 descendant cleared2026: 1 descendant cleared200020052010201520202025
  1. This deviceK002045 Water Purification System for HemodialysisTotal Water Treatment Systems, Inc. · 2001
  2. Descendant · cites it directly · 10 of its ownK012716 Mainstream Water Purification DevicePrismedical Corp. · 2002
  3. Descendant · 2 generations on · 9 of its ownK141731 Nephros Dsu-H, Nephros Ssu-HNephros, Inc. · 2014
  4. Descendant · 2 generations on · 4 of its ownK153784 Nosogard FiltersEvoqua Water Technologies, LLC · 2016
  5. Descendant · 3 generations on · 4 of its ownK153434 Pall-Aquasafe Water FilterPall International Sarl · 2016
  6. Descendant · 3 generations on · 2 of its ownK153084 Nephros S100Nephros, Inc. · 2016

Showing 5 of 12 descendants. See all descendants

Descendants cleared per year

2002: 12004: 12014: 12016: 32017: 12018: 12019: 22023: 12026: 1
2002high 3 (2016) · low 0 (2003)2026

Most influential descendants

Showing 5 of 12 · See all
  • K012716Mainstream Water Purification DevicePrismedical Corp. · 2002 · cites it directly10descendants
  • K141731Nephros Dsu-H, Nephros Ssu-HNephros, Inc. · 2014 · 2 generations on9descendants
  • K153784Nosogard FiltersEvoqua Water Technologies, LLC · 2016 · 2 generations on4descendants
  • K153434Pall-Aquasafe Water FilterPall International Sarl · 2016 · 3 generations on4descendants
  • K153084Nephros S100Nephros, Inc. · 2016 · 3 generations on2descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
0 (this device)K002045Water Purification System for HemodialysisTotal Water Treatment Systems, Inc.2001—
+1K012716Mainstream Water Purification DevicePrismedical Corp.2002—
+2K141731Nephros Dsu-H, Nephros Ssu-HNephros, Inc.2014—
+2K153784Nosogard FiltersEvoqua Water Technologies, LLC2016—
+3K153434Pall-Aquasafe Water FilterPall International Sarl2016—
+3K153084Nephros S100Nephros, Inc.2016—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
200210
200410
201410
201630
201710
201810
201920
202310
202610
FIG. 1 — Lineage of K002045, 2001–2026Source: FDA 510(k) summaries, read by 510(k) Report · 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), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in FIP? 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 FIP device

  1. #1 K251851 DIASAFEplusUS (F00013010)score 14.1 · 14 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?

FDA has not posted a summary or statement for it, so its predicates are not known.

What descends from it? (12)

See all 12

2 later devices cite it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K012716Mainstream Water Purification DevicePrismedical Corp.200210
K042089NX Stage Water Purification SystemNxstage Medical, Inc.20040

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

No FDA recall names this device.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • Of its descendants, K012716 (Prismedical Corp., 2002) has gone furthest, with 10 descendants of its own.

How does its category compare?

All FIP devices

FIP Subsystem, Water Purification: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · FIP

4in 2025

2007: 12008: 32009: 32010: 22011: 42012: 22013: 42014: 42015: 22016: 22017: 12018: 12019: 22020: 12021: 12022: 12023: 32024: 12025: 4
2007high 4 (2011) · low 1 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · FIP

88in 2025

2008: 202 days median2009: 167 days median2011: 116 days median2013: 125 days median2014: 126 days median2023: 69 days median2025: 88 days median
2007high 202 (2008) · low 69 (2023)2026

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

Recalls per year · FIP

1in 2020

2020: 1
2007high 1 (2020) · low 0 (2007)2026

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

Adverse event reports per year · FIP

77in 2025

2007: 12008: 52010: 122011: 42012: 42013: 412014: 342015: 122016: 32017: 62018: 32019: 132020: 122021: 352022: 572023: 1402024: 1742025: 77
2007high 174 (2024) · low 0 (2009)2025

MAUDE reports naming product code FIP, 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
20071—01
2008320205
2009316700
20102—012
2011411604
20122—04
20134125041
20144126034
20152—012
20162—03
20171—06
20181—03
20192—013
20201—112
20211—035
20221—057
20233690140
20241—0174
2025488077
20260—0—
Cite this page

510(k) Report. “K002045: Water Purification System for Hemodialysis.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K002045

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Record history
  • FDA decision record loaded May 2, 2026
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026