510(k) Report

510(k) · Cleared

Cleared

FLOWpresso

K223729510(k) TraditionalCleared Dec 21, 2023373-day reviewClass II21 CFR 890.5650

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

Medella Health Limited · IRP Massager, Powered Inflatable Tube

Cleared on Dec 21, 2023 as substantially equivalent to K193550 (Zenith Technical Innovations, 2020) after a 373-day review. Its family tree reaches back 7 generations to 1988. 3 later devices descend from it.

Decided
Dec 21, 2023
Review
373 days
Class
Class II
Product code
IRP
Recalls
None
Predicates
1

Its longest line of descent runs back 7 generations to K881632 (1988). 26 ancestors in all. 3 later devices descend from it, 1 citing it directly.

Other ancestors, by year clearedDescendants, by year cleared 2017: 1 other ancestor2007: 2 other ancestors2006: 1 other ancestor2005: 1 other ancestor2003: 1 other ancestor2001: 1 other ancestor1999: 1 other ancestor1997: 1 other ancestor1995: 4 other ancestors1996: 3 other ancestors1992: 1 other ancestor1998: 1 other ancestor1993: 1 other ancestor2024: 1 descendant cleared2025: 1 descendant cleared2026: 1 descendant clearedK881632 · Flowtron DVT System AC500 Pump, L501 Garment · Huntleigh Technology, Inc. · 1988K061857 · Model Multi-Flo IC-1545-KT/-F Intermittent Circulator · Bio Compression Systems, Inc. · 2006K072666 · Bioarterial Plus, Arterial Blood Flow Enhancement System · Bio Compression Systems, Inc. · 2007K131327 · Bioarterial Plus Arterial Blood Flow Enhancement System · Bio Compression Systems, Inc. · 2013K181149 · Therm-X Pro, Therm-X AT, Therm-X Pro Athlete · Zenith Technical Innovations · 2018K190854 · Therm-X · Zenith Technical Innovations · 2019K193550 · Therm-X · Zenith Technical Innovations · 20201990200020102020
  1. Root · 7 generations backK881632 Flowtron DVT System AC500 Pump, L501 GarmentHuntleigh Technology, Inc. · 1988
  2. 6 generations backK061857 Model Multi-Flo IC-1545-KT/-F Intermittent CirculatorBio Compression Systems, Inc. · 2006
  3. 5 generations backK072666 Bioarterial Plus, Arterial Blood Flow Enhancement SystemBio Compression Systems, Inc. · 2007
  4. 4 generations backK131327 Bioarterial Plus Arterial Blood Flow Enhancement SystemBio Compression Systems, Inc. · 2013
  5. 3 generations backK181149 Therm-X Pro, Therm-X AT, Therm-X Pro AthleteZenith Technical Innovations · 2018
  6. 2 generations backK190854 Therm-XZenith Technical Innovations · 2019
  7. 1 generation backK193550 Therm-XZenith Technical Innovations · 2020
  8. This deviceK223729 FLOWpressoMedella Health Limited · 2023
  9. Descendant · cites it directly · 2 of its ownK232965 Leg Massager (Models:RP-ALM070H, RP-ALM071H)Shenzhen Ruiyi Business Technology Co., Ltd. · 2024
  10. Descendant · 2 generations on · 0 of its ownK254200 Air Compression Leg Massager (LF-FT001, LF-FT002-1, LF-FT003…Wenzhou Lingfeng Electronic Technology Co., Ltd. · 2026
  11. Descendant · 2 generations on · 0 of its ownK251662 Air Compression Therapy Device (ST-504); Air Compression Therapy…Shenzhen Future Electronic Co., Ltd. · 2025

Most influential descendants

Showing 3 of 3 · See all
  • K232965Leg Massager (Models:RP-ALM070H, RP-ALM071H)Shenzhen Ruiyi Business Technology Co., Ltd. · 2024 · cites it directly2descendants
  • K254200Air Compression Leg Massager (LF-FT001, LF-FT002-1, LF-FT003, LF-FT003-1, LF-FT004-1…Wenzhou Lingfeng Electronic Technology Co., Ltd. · 2026 · 2 generations on0descendants
  • K251662Air Compression Therapy Device (ST-504); Air Compression Therapy Device (ST-505); Air…Shenzhen Future Electronic Co., Ltd. · 2025 · 2 generations on0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−7K881632Flowtron DVT System AC500 Pump, L501 GarmentHuntleigh Technology, Inc.1988—
−6K061857Model Multi-Flo IC-1545-KT/-F Intermittent CirculatorBio Compression Systems, Inc.2006—
−5K072666Bioarterial Plus, Arterial Blood Flow Enhancement SystemBio Compression Systems, Inc.2007—
−4K131327Bioarterial Plus Arterial Blood Flow Enhancement SystemBio Compression Systems, Inc.2013—
−3K181149Therm-X Pro, Therm-X AT, Therm-X Pro AthleteZenith Technical Innovations2018—
−2K190854Therm-XZenith Technical Innovations2019—
−1K193550Therm-XZenith Technical Innovations2020—
0 (this device)K223729FLOWpressoMedella Health Limited2023—
+1K232965Leg Massager (Models:RP-ALM070H, RP-ALM071H)Shenzhen Ruiyi Business Technology Co., Ltd.2024—
+2K254200Air Compression Leg Massager (LF-FT001, LF-FT002-1, LF-FT003, LF-FT003-1…Wenzhou Lingfeng Electronic Technology Co., Ltd.2026—
+2K251662Air Compression Therapy Device (ST-504); Air Compression Therapy Device…Shenzhen Future Electronic Co., Ltd.2025—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
199210
199310
199540
199630
199710
199810
199910
200110
200310
200510
200610
200720
201710

Descendants by year cleared

Year clearedDevicesWith a Class I recall
202410
202510
202610
FIG. 1 — Lineage of K223729, 1988–2026Source: 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), 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 IRP? 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 IRP device

  1. #1 K193354 Air Compression Therapy Devicescore 28.6 · 8 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? (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
*K193550Therm-X
Summary page 5
…th Technical Innovations, LLC. (Zenith) 510(k) Number: K223729 K193550 Classification: Class II Class II Regulation Number: 890.5650 Powered Infla…
Zenith Technical Innovations2020—

Also cleared against K193550: 4 other devices →

What descends from it? (3)

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

NumberDeviceApplicantDecidedDescendants
K232965Leg Massager (Models:RP-ALM070H, RP-ALM071H)Shenzhen Ruiyi Business Technology Co., Ltd.20242

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 35 years and passes through 4 companies; a new generation was cleared every 3.8 years on median.
  • 3 of the 26 ancestors have a recall of any class.
  • Of its descendants, K232965 (Shenzhen Ruiyi Business Technology Co., Ltd., 2024) has gone furthest, with 2 descendants of its own.
  • 4 other devices also cite its predicate K193550.

How does its category compare?

All IRP devices

IRP Massager, Powered Inflatable Tube: FDA decisions, review times, recalls and adverse event reports over 20 years. 2023, this device’s year, is highlighted.

FDA decisions per year · IRP

13in 2025

2007: 22008: 12009: 12010: 22011: 32012: 52013: 22014: 42015: 22016: 12017: 42018: 32019: 102020: 92021: 192022: 142023: 102024: 122025: 132026 (partial year): 12
2007high 19 (2021) · low 1 (2008)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · IRP

141in 2025

2011: 164 days median2012: 116 days median2014: 113 days median2017: 170 days median2018: 80 days median2019: 83 days median2020: 150 days median2021: 140 days median2022: 97 days median2023: 143 days median2024: 115 days median2025: 141 days median2026 (partial year): 172 days median
2007high 172 (2026) · low 80 (2018)2026

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

Recalls per year · IRP

2in 2017

2011: 12017: 2
2007high 2 (2017) · low 0 (2007)2026

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

Adverse event reports per year · IRP

10in 2025

2008: 22009: 12010: 52011: 32012: 32015: 32016: 22020: 12022: 12024: 42025: 10
2007high 10 (2025) · low 0 (2007)2025

MAUDE reports naming product code IRP, 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—00
20081—02
20091—01
20102—05
2011316413
2012511603
20132—00
2014411300
20152—03
20161—02
2017417020
201838000
2019108300
2020915001
20211914000
2022149701
20231014300
20241211504
202513141010
2026121720—

What is it indicated for?

The Flowpresso Device combines heat and compression therapy. Flowpresso is intended to treat post traumatic and post-surgical medical and/or surgical conditions for which localized thermal therapy are indicated.

Flowpresso is intended to be used by, or on the order of, licensed health care professionals based in rehabilitation facilities, outpatient clinics and athletic training settings.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K223729: FLOWpresso.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K223729

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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