510(k) Report

510(k) · Cleared

Cleared

Air Relax, Compressible Limb Sleeve System (Model: AR-1.0, AR-2.0)

K191441510(k) TraditionalCleared Mar 5, 2021645-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

Maxstar Industrial Co., Ltd. · IRP Massager, Powered Inflatable Tube

Cleared on Mar 5, 2021 as substantially equivalent to K182668 (Rapid Reboot Recovery Products, LLC, 2018) and 1 other predicate after a 645-day review. Its family tree reaches back 9 generations to 1985. 2 later devices descend from it.

Decided
Mar 5, 2021
Review
645 days
Class
Class II
Product code
IRP
Recalls
None
Predicates
2

Its longest line of descent runs back 9 generations to K850316 (1985). 20 ancestors in all, the oldest K810338 (1981). 2 later devices descend from it, 1 citing it directly.

  1. Root · 9 generations backK850316 Unisonic Electronic Digital BP Monitor Ebm-2050Nihon Seimitsu Sokki Co., Ltd. · 1985
  2. 5 generations between
  3. 3 generations backK160608 NormaTec Pulse and NormaTec Pulse ProNormaTec Industries, LP · 2016
  4. 2 generations backK182668 Rapid Reboot Compression Therapy SystemRapid Reboot Recovery Products, LLC · 2018
  5. 1 generation backK193354 Air Compression Therapy DeviceShenzhen Dongjilian Electronics Co., Ltd. · 2020
  6. This deviceK191441 Air Relax, Compressible Limb Sleeve System (Model: AR-1.0, AR-2.0)Maxstar Industrial Co., Ltd. · 2021
  7. Descendant · cites it directly · 1 of its ownK211460 Air Relax Plus Model AR-3.0Diode Art Engineering Doing Business AS Air Relax · 2021
  8. Descendant · 2 generations on · 0 of its ownK212491 Air Relax Pro Model AR-4.0Diode Art Engineering Doing Business AS Air Relax · 2021
Show all 9 generations
  1. Root · 9 generations backK850316 Unisonic Electronic Digital BP Monitor Ebm-2050Nihon Seimitsu Sokki Co., Ltd. · 1985
  2. 8 generations backK993890 Digital Blood Pressure Monitor, Model DS-181Nihon Seimitsu Sokki Co., Ltd. · 1999
  3. 7 generations backK050697 Model DS-1901 Digital Blood Pressure MonitorNihon Seimitsu Sokki Co., Ltd. · 2005
  4. 6 generations backK071596 Potable Air Massager Putifino, Model AM-7Nihon Seimitsu Sokki Co., Ltd. · 2008
  5. 5 generations backK092435 Verseo Air Pressure MassagerThe American Export Group & International Services · 2010
  6. 4 generations backK122154 Powerplay Muscle MassagerFig, LLC · 2012
  7. 3 generations backK160608 NormaTec Pulse and NormaTec Pulse ProNormaTec Industries, LP · 2016
  8. 2 generations backK182668 Rapid Reboot Compression Therapy SystemRapid Reboot Recovery Products, LLC · 2018
  9. 1 generation backK193354 Air Compression Therapy DeviceShenzhen Dongjilian Electronics Co., Ltd. · 2020
  10. This deviceK191441 Air Relax, Compressible Limb Sleeve System (Model: AR-1.0, AR-2.0)Maxstar Industrial Co., Ltd. · 2021

Most influential descendants

Showing 2 of 2 · See all
  • K211460Air Relax Plus Model AR-3.0Diode Art Engineering Doing Business AS Air Relax · 2021 · cites it directly1descendant
  • K212491Air Relax Pro Model AR-4.0Diode Art Engineering Doing Business AS Air Relax · 2021 · 2 generations on0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−9K850316Unisonic Electronic Digital BP Monitor Ebm-2050Nihon Seimitsu Sokki Co., Ltd.1985—
−8K993890Digital Blood Pressure Monitor, Model DS-181Nihon Seimitsu Sokki Co., Ltd.1999—
−7K050697Model DS-1901 Digital Blood Pressure MonitorNihon Seimitsu Sokki Co., Ltd.2005—
−6K071596Potable Air Massager Putifino, Model AM-7Nihon Seimitsu Sokki Co., Ltd.2008—
−5K092435Verseo Air Pressure MassagerThe American Export Group & International Services2010—
−4K122154Powerplay Muscle MassagerFig, LLC2012—
−3K160608NormaTec Pulse and NormaTec Pulse ProNormaTec Industries, LP2016—
−2K182668Rapid Reboot Compression Therapy SystemRapid Reboot Recovery Products, LLC2018—
−1K193354Air Compression Therapy DeviceShenzhen Dongjilian Electronics Co., Ltd.2020—
0 (this device)K191441Air Relax, Compressible Limb Sleeve System (Model: AR-1.0, AR-2.0)Maxstar Industrial Co., Ltd.2021—
+1K211460Air Relax Plus Model AR-3.0Diode Art Engineering Doing Business AS Air Relax2021—
+2K212491Air Relax Pro Model AR-4.0Diode Art Engineering Doing Business AS Air Relax2021—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
198110
198310
199110
199210
199510
200120
200320
200510
201210

Descendants by year cleared

Year clearedDevicesWith a Class I recall
202120
FIG. 1 — Lineage of K191441, 1985–2021Source: 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 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
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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
*K182668Rapid Reboot Compression Therapy System
Summary page 5
…correct use and safe use. 1 510(k) Summary 4. Identification ofPredicateDevice(s) Primary Predicate device - K182668 - Trade/Device Name: Rapid Reboot Compression TherapySystem - Company: Rapid Reboot Recovery Prod…
Rapid Reboot Recovery Products, LLC2018—
*K193354Air Compression Therapy Device
Cleared while this submission was under review
Summary page 5
…Powered Inflatable Tube Massager - Regulatory Class: Class II - Product Code: IRP Secondary Predicate device - K193354 - Trade Name: Air Compression Therapy Device - Model : S9019 - Company: Shenzhen…
Shenzhen Dongjilian Electronics Co., Ltd.2020—

Also cleared against K182668: 15 other devices →

What descends from it? (2)

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

NumberDeviceApplicantDecidedDescendants
K211460Air Relax Plus Model AR-3.0Diode Art Engineering Doing Business AS Air Relax20211

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 36 years and passes through 7 companies; a new generation was cleared every 2.7 years on median.
  • None of the 20 ancestors has a recall.
  • Of its descendants, K211460 (Diode Art Engineering Doing Business AS Air Relax, 2021) has gone furthest, with 1 descendant of its own.
  • 15 other devices also cite its predicate K182668.

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. 2021, 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?

Air Relax/Compressible Limb Sleeve System (Model: AR-1.0, AR-2.0) is indicated for the temporary relief of minor muscle aches and pains and for temporary increase in circulation to the treated areas in people who are in good health. The Air Relax/ Compressible Limb Sleeve System (Model: AR-1.0, AR-2.0) simulates kneading and stroking of tissues by using an inflatable garment.

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. “K191441: Air Relax, Compressible Limb Sleeve System (Model: AR-1.0, AR-2.0).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K191441

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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