510(k) Report

510(k) · Cleared

Cleared

DVT-Pro

K203353510(k) SpecialCleared Apr 22, 2021160-day reviewClass II21 CFR 870.5800

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

Daesung Maref Co., Ltd. · JOW Sleeve, Limb, Compressible

Cleared on Apr 22, 2021 as substantially equivalent to K150980 (Daesung Maref Co., Ltd., 2016) after a 160-day review. Its family tree reaches back 4 generations to 1996.

Decided
Apr 22, 2021
Review
160 days
Class
Class II
Product code
JOW
Recalls
None
Predicates
1

Its longest line of descent runs back 4 generations to K953648 (1996). 5 ancestors in all. No later device cites it as a predicate yet.

  1. Root · 4 generations backK953648 A-V Impulse System Model 6060Novamedix, Ltd. · 1996
  2. 3 generations backK040511 SCD Express Portable Compression SystemTyco Healthcare/Kendall · 2004
  3. 2 generations backK112677 The Venous Assist SystemDaesung Maref Co., Ltd. · 2012
  4. 1 generation backK150980 Venous Assist SystemDaesung Maref Co., Ltd. · 2016
  5. This deviceK203353 DVT-ProDaesung Maref Co., Ltd. · 2021
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−4K953648A-V Impulse System Model 6060Novamedix, Ltd.1996—
−3K040511SCD Express Portable Compression SystemTyco Healthcare/Kendall2004—
−2K112677The Venous Assist SystemDaesung Maref Co., Ltd.2012—
−1K150980Venous Assist SystemDaesung Maref Co., Ltd.2016—
0 (this device)K203353DVT-ProDaesung Maref Co., Ltd.2021—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
199910
FIG. 1 — Lineage of K203353, 1996–2021Source: 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 JOW? 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 JOW device

  1. #1 K253555 Flexitouch® Plus Advanced Pneumatic…score 14.8 · 11 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? (1)

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
*K150980Venous Assist System
Summary page 5
…ion Class I Product Code JOW 4. Identification of Predicate Device(s) [21 CFR 807.92(a)(3)] Predicate Device . 510(k) Number: K150980 * Applicant : DAESUNG MAREF CO., LTD. * Trade / Device Name : DVT-Pro * Regulati…
Daesung Maref Co., Ltd.2016—

What descends from it?

No later submission names this one as a predicate yet.

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?

  • The line of descent spans 25 years and passes through 3 companies; a new generation was cleared every 7.5 years on median.
  • None of the 5 ancestors has a recall.

How does its category compare?

All JOW devices

JOW Sleeve, Limb, Compressible: FDA decisions, review times, recalls and adverse event reports over 20 years. 2021, this device’s year, is highlighted.

FDA decisions per year · JOW

7in 2025

2007: 62008: 42009: 32010: 182011: 112012: 132013: 172014: 162015: 102016: 92017: 92018: 112019: 112020: 142021: 162022: 72023: 62024: 82025: 72026 (partial year): 6
2007high 18 (2010) · low 3 (2009)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · JOW

168in 2025

2007: 66 days median2008: 112 days median2009: 84 days median2010: 71 days median2011: 104 days median2012: 63 days median2013: 94 days median2014: 91 days median2015: 160 days median2016: 121 days median2017: 116 days median2018: 136 days median2019: 88 days median2020: 158 days median2021: 132 days median2022: 80 days median2023: 160 days median2024: 197 days median2025: 168 days median2026 (partial year): 252 days median
2007high 252 (2026) · low 63 (2012)2026

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

Recalls per year · JOW

1in 2019

2008: 72010: 22011: 32012: 22017: 12019: 1
2007high 7 (2008) · low 0 (2007)2026

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

Adverse event reports per year · JOW

24in 2025

2007: 122008: 362009: 452010: 662011: 502012: 1002013: 1692014: 932015: 1372016: 1502017: 1492018: 1142019: 1022020: 502021: 342022: 272023: 572024: 302025: 24
2007high 169 (2013) · low 12 (2007)2025

MAUDE reports naming product code JOW, 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
2007666012
20084112736
2009384045
20101871266
201111104350
201213632100
201317940169
20141691093
2015101600137
201691210150
201791161149
2018111360114
201911881102
202014158050
202116132034
2022780027
20236160057
20248197030
20257168024
202662520—

What is it indicated for?

DVT-PRO is a system to prevent DVT (Deep Vein Thrombosis) by improving the blood velocity of patients. DVT-PRO is Circulation Enhancement, Deep Vein Thrombosis Prophylaxis Edema -Acute, Edema - Chronic, Extremity Pain Incident to Trauma or Surgery Leg Ulcers, Venous Stasis / Venous Insufficiency

Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.

Cite this page

510(k) Report. “K203353: DVT-Pro.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K203353

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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