510(k) Report

510(k) · Cleared

Cleared

Ez3D-i/E3

K190791510(k) SpecialCleared Apr 19, 201923-day reviewClass II21 CFR 892.2050

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

Ewoosoft Co., Ltd. · LLZ System, Image Processing, Radiological

Cleared on Apr 19, 2019 after a 23-day review. The FDA summary names no predicate by number. 9 later devices descend from it.

Decided
Apr 19, 2019
Review
23 days
Class
Class II
Product code
LLZ
Recalls
None
Predicates
0

9 later devices descend from it, 1 citing it directly.

Descendants, by year cleared 2020: 1 descendant cleared2021: 2 descendants cleared2023: 2 descendants cleared2022: 1 descendant cleared2025: 3 descendants cleared201620182020202220242026
  1. This deviceK190791 Ez3D-i/E3Ewoosoft Co., Ltd. · 2019
  2. Descendant · cites it directly · 8 of its ownK200178 Ez3D-i /E3Ewoosoft Co., Ltd. · 2020
  3. Descendant · 2 generations on · 4 of its ownK211791 Ez3D-i/E3Ewoosoft Co., Ltd. · 2021
  4. Descendant · 3 generations on · 3 of its ownK222069 Ez3D-i/E3Ewoosoft Co., Ltd. · 2022
  5. Descendant · 3 generations on · 2 of its ownK231757 Ez3D-i /E3Ewoosoft Co., Ltd. · 2023
  6. Descendant · 2 generations on · 2 of its ownK211700 EzDent WebEwoosoft Co., Ltd. · 2021

Showing 5 of 9 descendants. See all descendants

Descendants cleared per year

2020: 12021: 22022: 12023: 22025: 3
2020high 3 (2025) · low 0 (2024)2026

Most influential descendants

Showing 5 of 9 · See all
  • K200178Ez3D-i /E3Ewoosoft Co., Ltd. · 2020 · cites it directly8descendants
  • K211791Ez3D-i/E3Ewoosoft Co., Ltd. · 2021 · 2 generations on4descendants
  • K222069Ez3D-i/E3Ewoosoft Co., Ltd. · 2022 · 3 generations on3descendants
  • K231757Ez3D-i /E3Ewoosoft Co., Ltd. · 2023 · 3 generations on2descendants
  • K211700EzDent WebEwoosoft Co., Ltd. · 2021 · 2 generations on2descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
0 (this device)K190791Ez3D-i/E3Ewoosoft Co., Ltd.2019—
+1K200178Ez3D-i /E3Ewoosoft Co., Ltd.2020—
+2K211791Ez3D-i/E3Ewoosoft Co., Ltd.2021—
+3K222069Ez3D-i/E3Ewoosoft Co., Ltd.2022—
+3K231757Ez3D-i /E3Ewoosoft Co., Ltd.2023—
+2K211700EzDent WebEwoosoft Co., Ltd.2021—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
202010
202120
202210
202320
202530
FIG. 1 — Lineage of K190791, 2019–2025Source: 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), 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 LLZ? 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 LLZ device

  1. #1 K230955 syngo Application Softwarescore 21.5 · 11 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
Get a 510(k) Report

What was it cleared against?

The FDA summary names no predicate by number.

What descends from it? (9)

1 later device cites it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K200178Ez3D-i /E3Ewoosoft Co., Ltd.20208

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, K200178 (Ewoosoft Co., Ltd., 2020) has gone furthest, with 8 descendants of its own.

How does its category compare?

All LLZ devices

LLZ System, Image Processing, Radiological: FDA decisions, review times, recalls and adverse event reports over 20 years. 2019, this device’s year, is highlighted.

FDA decisions per year · LLZ

58in 2025

2007: 762008: 942009: 702010: 512011: 1062012: 822013: 952014: 782015: 642016: 822017: 782018: 1042019: 742020: 812021: 832022: 652023: 872024: 622025: 582026 (partial year): 45
2007high 106 (2011) · low 51 (2010)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · LLZ

173in 2025

2007: 36 days median2008: 52 days median2009: 62 days median2010: 98 days median2011: 79 days median2012: 87 days median2013: 84 days median2014: 89 days median2015: 90 days median2016: 90 days median2017: 107 days median2018: 105 days median2019: 107 days median2020: 115 days median2021: 116 days median2022: 137 days median2023: 157 days median2024: 131 days median2025: 173 days median2026 (partial year): 110 days median
2007high 173 (2025) · low 36 (2007)2026

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

Recalls per year · LLZ

11in 2025

2007: 202008: 322009: 212010: 172011: 302012: 122013: 642014: 62015: 162016: 122017: 52018: 72019: 22020: 62021: 32022: 42023: 82024: 62025: 112026 (partial year): 14
2007high 64 (2013) · low 2 (2019)2026

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

Adverse event reports per year · LLZ

116in 2025

2007: 1522008: 1542009: 1452010: 1452011: 4542012: 2662013: 1,1302014: 15,6312015: 2112016: 2902017: 1042018: 722019: 882020: 822021: 702022: 282023: 262024: 422025: 116
2007high 15,631 (2014) · low 26 (2023)2025

MAUDE reports naming product code LLZ, 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
2007763620152
2008945232154
2009706221145
2010519817145
20111067930454
2012828712266
20139584641,130
20147889615,631
2015649016211
2016829012290
2017781075104
2018104105772
201974107288
202081115682
202183116370
202265137428
202387157826
202462131642
20255817311116
20264511014—
Cite this page

510(k) Report. “K190791: Ez3D-i/E3.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K190791

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