510(k) Report

510(k) · Cleared

Cleared

QB1 System Powered Muscle Stimulator & Transcutaneous Electrical Nerve Stimulator

K150413510(k) TraditionalCleared Apr 2, 201543-day reviewClass II21 CFR 890.5850

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

Cymedica Orthopedics, Inc. · IPF Stimulator, Muscle, Powered

Cleared on Apr 2, 2015 as substantially equivalent to K110350 (Bio-Medical Research, Ltd., 2011) and 1 other predicate after a 43-day review. Its family tree reaches back 5 generations to 2001. 7 later devices descend from it.

Decided
Apr 2, 2015
Review
43 days
Class
Class II
Product code
IPF
Recalls
None
Predicates
2

Its longest line of descent runs back 5 generations to K010335 (2001). 18 ancestors in all, the oldest K926510 (1993). 7 later devices descend from it, 2 citing it directly.

Other ancestors, by year clearedDescendants, by year cleared 2008: 1 other ancestor2007: 1 other ancestor2002: 3 other ancestors1997: 1 other ancestor2005: 1 other ancestor2004: 1 other ancestor2000: 1 other ancestor1996: 1 other ancestor1993: 2 other ancestors2003: 1 other ancestor2016: 1 descendant cleared2021: 3 descendants cleared2024: 1 descendant cleared2022: 2 descendants clearedK010335 · Slendertone Flex, Model, 512 · Bio-Medical Research, Ltd. · 2001K022855 · Slendertone Flex Bottom & Thigh Toning System, Type 511 · Bio-Medical Research, Ltd. · 2003K070142 · Slendertone System Abs, Models 390, E10, X10; Slendertone System Shorts, Models 390, E20 · Bio-Medical Research Corp. · 2007K083105 · Kneehab XP Conductive Garment, Type 411 · Bio-Medical Research, Ltd. · 2009K110350 · Kneehab XP · Bio-Medical Research, Ltd. · 20111990200020102020
Other ancestors, by generationDescendants, by generation 1 generation back: 1 other ancestor2 generations back: 5 other ancestors3 generations back: 5 other ancestors4 generations back: 2 other ancestors 1 generation forward: 2 descendants2 generations forward: 3 descendants3 generations forward: 2 descendants K110350 · Kneehab XP · Bio-Medical Research, Ltd. · 2011K083105 · Kneehab XP Conductive Garment, Type 411 · Bio-Medical Research, Ltd. · 2009K070142 · Slendertone System Abs, Models 390, E10, X10; Slendertone System Shorts, Models 390, E20 · Bio-Medical Research Corp. · 2007K022855 · Slendertone Flex Bottom & Thigh Toning System, Type 511 · Bio-Medical Research, Ltd. · 2003K010335 · Slendertone Flex, Model, 512 · Bio-Medical Research, Ltd. · 2001−50
  1. Root · 5 generations backK010335 Slendertone Flex, Model, 512Bio-Medical Research, Ltd. · 2001
  2. 4 generations backK022855 Slendertone Flex Bottom & Thigh Toning System, Type 511Bio-Medical Research, Ltd. · 2003
  3. 3 generations backK070142 Slendertone System Abs, Models 390, E10, X10; Slendertone System…Bio-Medical Research Corp. · 2007
  4. 2 generations backK083105 Kneehab XP Conductive Garment, Type 411Bio-Medical Research, Ltd. · 2009
  5. 1 generation backK110350 Kneehab XPBio-Medical Research, Ltd. · 2011
  6. This deviceK150413 QB1 System Powered Muscle Stimulator & Transcutaneous Electrical…Cymedica Orthopedics, Inc. · 2015
  7. Descendant · cites it directly · 4 of its ownK163067 CyMedica e-vive™ System; CY-1000Cymedica Orthopedics, Inc. · 2016
  8. Descendant · cites it directly · 1 of its ownK212832 TimeWaver FrequencyTimewaver Production GmbH · 2021
  9. Descendant · 2 generations on · 1 of its ownK210674 Shoulder PacemakerNcs Lab Srl · 2021
  10. Descendant · 2 generations on · 1 of its ownK210604 Intellihab SystemCymedica Orthopedics, Inc. · 2021
  11. Descendant · 2 generations on · 0 of its ownK240992 eMVFit (MVF-10M)Weero Co., Ltd. · 2024

Showing 5 of 7 descendants. See all descendants

Descendants cleared per year

2016: 12021: 32022: 22024: 1
2016high 3 (2021) · low 0 (2017)2026

Most influential descendants

Showing 5 of 7 · See all
  • K163067CyMedica e-vive™ System; CY-1000Cymedica Orthopedics, Inc. · 2016 · cites it directly4descendants
  • K212832TimeWaver FrequencyTimewaver Production GmbH · 2021 · cites it directly1descendant
  • K210674Shoulder PacemakerNcs Lab Srl · 2021 · 2 generations on1descendant
  • K210604Intellihab SystemCymedica Orthopedics, Inc. · 2021 · 2 generations on1descendant
  • K240992eMVFit (MVF-10M)Weero Co., Ltd. · 2024 · 2 generations on0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−5K010335Slendertone Flex, Model, 512Bio-Medical Research, Ltd.2001—
−4K022855Slendertone Flex Bottom & Thigh Toning System, Type 511Bio-Medical Research, Ltd.2003—
−3K070142Slendertone System Abs, Models 390, E10, X10; Slendertone System Shorts…Bio-Medical Research Corp.2007—
−2K083105Kneehab XP Conductive Garment, Type 411Bio-Medical Research, Ltd.2009—
−1K110350Kneehab XPBio-Medical Research, Ltd.2011—
0 (this device)K150413QB1 System Powered Muscle Stimulator & Transcutaneous Electrical Nerve…Cymedica Orthopedics, Inc.2015—
+1K163067CyMedica e-vive™ System; CY-1000Cymedica Orthopedics, Inc.2016—
+1K212832TimeWaver FrequencyTimewaver Production GmbH2021—
+2K210674Shoulder PacemakerNcs Lab Srl2021—
+2K210604Intellihab SystemCymedica Orthopedics, Inc.2021—
+2K240992eMVFit (MVF-10M)Weero Co., Ltd.2024—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
199320
199610
199710
200010
200230
200310
200410
200510
200710
200810

Descendants by year cleared

Year clearedDevicesWith a Class I recall
201610
202130
202220
202410
FIG. 1 — Lineage of K150413, 2001–2024Source: 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 IPF? 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 IPF device

  1. #1 K241433 EVE Synergy (EVE-20M)score 19.6 · 25 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? (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
*K110350Kneehab XP
Summary page 5
…7 3- PREDICATE DEVICE Name & 510(k) Number: Kneehab XP, K110350 MediStim XP (AvivaStim XP), K082011 Manufacturer: Bio-Medical…
Bio-Medical Research, Ltd.2011—
*K082011Medistim XP, Type 281 and Meditens XP, Type 458
Summary page 5
…7 3- PREDICATE DEVICE Name & 510(k) Number: Kneehab XP, K110350 MediStim XP (AvivaStim XP), K082011 Manufacturer: Bio-Medical Research, Ltd. 4- DEVICE DESCRIPTION The CyMedica Orthopedics QB1 System…
Bio-Medical Research, Ltd.2008—

Also cleared against K110350: 1 other device →

What descends from it? (7)

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

NumberDeviceApplicantDecidedDescendants
K163067CyMedica e-vive™ System; CY-1000Cymedica Orthopedics, Inc.20164
K212832TimeWaver FrequencyTimewaver Production GmbH20211

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 14 years and passes through 3 companies; a new generation was cleared every 2.3 years on median.
  • None of the 18 ancestors has a recall.
  • Of its descendants, K163067 (Cymedica Orthopedics, Inc., 2016) has gone furthest, with 4 descendants of its own.
  • 1 other device also cites its predicate K110350.

How does its category compare?

All IPF devices

IPF Stimulator, Muscle, Powered: FDA decisions, review times, recalls and adverse event reports over 20 years. 2015, this device’s year, is highlighted.

FDA decisions per year · IPF

3in 2025

2007: 82008: 62009: 72010: 42011: 42012: 42013: 102014: 42015: 32016: 72017: 52018: 52019: 42020: 92021: 152022: 72023: 92024: 72025: 32026 (partial year): 3
2007high 15 (2021) · low 3 (2015)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · IPF

257in 2025

2007: 143 days median2008: 140 days median2009: 216 days median2010: 121 days median2011: 275 days median2012: 269 days median2013: 180 days median2014: 264 days median2015: 43 days median2016: 113 days median2017: 110 days median2018: 73 days median2019: 133 days median2020: 121 days median2021: 98 days median2022: 108 days median2023: 255 days median2024: 201 days median2025: 257 days median2026 (partial year): 206 days median
2007high 275 (2011) · low 43 (2015)2026

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

Recalls per year · IPF

1in 2023

2008: 12011: 12012: 32023: 1
2007high 3 (2012) · low 0 (2007)2026

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

Adverse event reports per year · IPF

8in 2025

2007: 112008: 2132009: 1502010: 142011: 252012: 162013: 62014: 192015: 112016: 82017: 22018: 32019: 102020: 132021: 32022: 42023: 82024: 52025: 8
2007high 213 (2008) · low 2 (2017)2025

MAUDE reports naming product code IPF, 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
20078143011
200861401213
200972160150
20104121014
20114275125
20124269316
20131018006
20144264019
2015343011
2016711308
2017511002
201857303
20194133010
20209121013
2021159803
2022710804
2023925518
2024720105
2025325708
202632060—

What is it indicated for?

The QB1 Powered Muscle Stimulator System (NMES) &Transcutaneous Electrical Nerve Stimulator System (TENS); QB-1000 is a multifunctional electrotherapy device with two treatment modes that allow for neuromuscular electrical stimulation (NMES) and transcutaneous electrical nerve stimulation (TENS). Indications for Use: As an NMES device, indications are for the following conditions: - Relaxation of muscle spasms - Retardation or prevention of disuse…

Read the full statement (115 words)

The QB1 Powered Muscle Stimulator System (NMES) &Transcutaneous Electrical Nerve Stimulator System (TENS);

QB-1000 is a multifunctional electrotherapy device with two treatment modes that allow for neuromuscular electrical

stimulation (NMES) and transcutaneous electrical nerve stimulation (TENS).

Indications for Use:

As an NMES device, indications are for the following conditions:

- Relaxation of muscle spasms

- Retardation or prevention of disuse atrophy

- Increasing local blood circulation

- Re-educating muscles

- Immediate post-surgical stimulation of calf muscles to prevent venous thrombosis

- Maintaining or increasing range of motion

As a TENS device, indications are for the following conditions:

- Symptomatic relief and management of chronic intractable pain

- Adjunctive treatment for post-surgical and post-trauma acute pain

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K150413: QB1 System Powered Muscle Stimulator & Transcutaneous Electrical Nerve Stimulator.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K150413

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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