510(k) Report

510(k) · Cleared

Recalled · Class II · 2020

HORIZON TMS Therapy System with Navigation

K183376510(k) TraditionalCleared Apr 3, 2019118-day reviewClass II21 CFR 882.5805Recalls 2

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

Magstim Company, Ltd. · OBP Transcranial Magnetic Stimulator

Cleared on Apr 3, 2019 as substantially equivalent to K173620 (Tonica Elektronik A/S, 2018) and 1 other predicate after a 118-day review. Its family tree reaches back 8 generations to 2008. 7 later devices descend from it. It has been recalled 2 times.

Decided
Apr 3, 2019
Review
118 days
Class
Class II
Product code
OBP
Recalls
2
Predicates
2

Its longest line of descent runs back 8 generations to DEN070003 (2008). 17 ancestors in all. 7 later devices descend from it, 1 citing it directly.

Other ancestors, by generationDescendants, by generation 1 generation back: 1 other ancestor2 generations back: 6 other ancestors3 generations back: 2 other ancestors 1 generation forward: 1 descendant2 generations forward: 2 descendants3 generations forward: 2 descendants4 generations forward: 1 descendant5 generations forward: 1 descendant K180907 · HORIZON TMS Therapy System · Magstim Company, Ltd. · 2018 · recalledK171051 · HORIZON Therapy System · Magstim Company, Ltd. · 2017K162935 · Rapid2 Therapy System · Magstim Company, Ltd. · 2017 · recalledK143531 · Rapid Therapy System · Magstim Company Limited · 2015 · recalledK133408 · Neurostar TMS Therapy System · Neuronetics · 2014K130233 · Neurostar TMS Therapy System · Neuronetics · 2013K083538 · Neurostar TMS Therapy System, Model 1.1 · Neuronetics · 2008 · recalledDEN070003 · Neurostar TMS System · Neuronetics · 2008−50+5
  1. Root · 8 generations backDEN070003 Neurostar TMS SystemNeuronetics · 2008
  2. 7 generations backK083538 Neurostar TMS Therapy System, Model 1.1Neuronetics · 2008 · Recalled
  3. 6 generations backK130233 Neurostar TMS Therapy SystemNeuronetics · 2013
  4. 5 generations backK133408 Neurostar TMS Therapy SystemNeuronetics · 2014
  5. 4 generations backK143531 Rapid Therapy SystemMagstim Company Limited · 2015 · Recalled
  6. 3 generations backK162935 Rapid2 Therapy SystemMagstim Company, Ltd. · 2017 · Recalled
  7. 2 generations backK171051 HORIZON Therapy SystemMagstim Company, Ltd. · 2017
  8. 1 generation backK180907 HORIZON TMS Therapy SystemMagstim Company, Ltd. · 2018 · Recalled
  9. This deviceK183376 HORIZON TMS Therapy System with NavigationMagstim Company, Ltd. · 2019
  10. Descendant · cites it directly · 6 of its ownK211389 Magstim Horizon 3.0 TMS Therapy System, Horizon 3.0 System, Horizon…Magstim Company, Ltd. · 2021
  11. Descendant · 2 generations on · 4 of its ownK222171 Magstim Horizon 3.0 TMS Therapy System, Horizon 3.0 System, Horizon…Magstim Company, Ltd. · 2023
  12. Descendant · 3 generations on · 2 of its ownK232235 Magstim®Horizon® 3.0 TMS Therapy System; Horizon® 3.0 System…The Magstim Company, Ltd. · 2023
  13. Descendant · 4 generations on · 1 of its ownK241518 Horizon® 3.0 TMS Therapy System (Horizon 3.0 Inspire); Horizon® 3.0…The Magstim Company Limited · 2024
  14. Descendant · 5 generations on · 0 of its ownK253098 Nexstim Navigated Brain Stimulation (NBS) 6 System (NBS6)Nexstim Oyj · 2026

Showing 5 of 7 descendants. See all descendants

Descendants cleared per year

2021: 12023: 32024: 12025: 12026: 1
2021high 3 (2023) · low 0 (2022)2026

Most influential descendants

Showing 5 of 7 · See all
  • K211389Magstim Horizon 3.0 TMS Therapy System, Horizon 3.0 System, Horizon 3.0, Horizon 3.0…Magstim Company, Ltd. · 2021 · cites it directly6descendants
  • K222171Magstim Horizon 3.0 TMS Therapy System, Horizon 3.0 System, Horizon 3.0, H3.0, Horizon…Magstim Company, Ltd. · 2023 · 2 generations on4descendants
  • K232235Magstim®Horizon® 3.0 TMS Therapy System; Horizon® 3.0 System; Horizon® 3.0; Horizon® 3.0…The Magstim Company, Ltd. · 2023 · 3 generations on2descendants
  • K241518Horizon® 3.0 TMS Therapy System (Horizon 3.0 Inspire); Horizon® 3.0 TMS Therapy System…The Magstim Company Limited · 2024 · 4 generations on1descendant
  • K253098Nexstim Navigated Brain Stimulation (NBS) 6 System (NBS6)Nexstim Oyj · 2026 · 5 generations on0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−8DEN070003Neurostar TMS SystemNeuronetics2008—
−7K083538Neurostar TMS Therapy System, Model 1.1Neuronetics20081
−6K130233Neurostar TMS Therapy SystemNeuronetics2013—
−5K133408Neurostar TMS Therapy SystemNeuronetics2014—
−4K143531Rapid Therapy SystemMagstim Company Limited20153
−3K162935Rapid2 Therapy SystemMagstim Company, Ltd.20173
−2K171051HORIZON Therapy SystemMagstim Company, Ltd.2017—
−1K180907HORIZON TMS Therapy SystemMagstim Company, Ltd.20183
0 (this device)K183376HORIZON TMS Therapy System with NavigationMagstim Company, Ltd.2019—
+1K211389Magstim Horizon 3.0 TMS Therapy System, Horizon 3.0 System, Horizon 3.0…Magstim Company, Ltd.2021—
+2K222171Magstim Horizon 3.0 TMS Therapy System, Horizon 3.0 System, Horizon 3.0, H3.0…Magstim Company, Ltd.2023—
+3K232235Magstim®Horizon® 3.0 TMS Therapy System; Horizon® 3.0 System; Horizon® 3.0…The Magstim Company, Ltd.2023—
+4K241518Horizon® 3.0 TMS Therapy System (Horizon 3.0 Inspire); Horizon® 3.0 TMS…The Magstim Company Limited2024—
+5K253098Nexstim Navigated Brain Stimulation (NBS) 6 System (NBS6)Nexstim Oyj2026—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
201510
201620
201750
201810

Descendants by year cleared

Year clearedDevicesWith a Class I recall
202110
202330
202410
202510
202610
FIG. 1 — Lineage of K183376, 2008–2026Source: 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 OBP? 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 OBP device

  1. #1 K251119 MagVenture TMS Therapy Systemscore 21.8 · 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? (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
*K173620Mag Vita TMS Therapy System w/Theta Burst Stimulation
Summary page 4
…II, product code OBP Additional Product Codes: HAW, IKN Predicate Devices Mag Vita TMS Therapy System w/Theta Burst Stimulation, Tonica Elektronik A/S. (K173620) (Primary Predicate) HORIZON® TMS Therapy System, The Magstim Company Limited. (K180907) (Secondary Predicat…
Tonica Elektronik A/S2018—
*K180907HORIZON TMS Therapy System
Summary page 4
…S Therapy System w/Theta Burst Stimulation, Tonica Elektronik A/S. (K173620) (Primary Predicate) HORIZON® TMS Therapy System, The Magstim Company Limited. (K180907) (Secondary Predicate) Nexstim Navigated Brain Therapy (NBT) System 2, Nexstim Plc. (K171902) (Reference Pre…
Magstim Company, Ltd.20183
†K171902Nexstim Navigated Brain Therapy (NBT) System 2Nexstim Plc2017—

Also cleared against K173620: 8 other devices →

What descends from it? (7)

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

NumberDeviceApplicantDecidedDescendants
K211389Magstim Horizon 3.0 TMS Therapy System, Horizon 3.0 System, Horizon 3.0, Horizon 3.0…Magstim Company, Ltd.20216

Has anything in its family been recalled? (0 Class I)

Recalls of this device

DateClassRecallRoot causeReason
Mar 23, 2020Class IIZ-1965-2020Nonconforming Material/ComponentIt was identified that there is a potential for the Stim Interconnecting high Voltage Cable located at the rear of the Rapid2 and Horizon power supply unit to fail.
Mar 23, 2020Class IIZ-1966-2020Nonconforming Material/ComponentIt was identified that there is a potential for the Stim Interconnecting high Voltage Cable located at the rear of the Rapid2 and Horizon power supply unit to fail.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • The line of descent spans 11 years and passes through 3 companies; a new generation was cleared every 11 months on median.
  • 4 of the 17 ancestors have a recall of any class.
  • Of its descendants, K211389 (Magstim Company, Ltd., 2021) has gone furthest, with 6 descendants of its own.
  • 8 other devices also cite its predicate K173620.

How does its category compare?

All OBP devices

OBP Transcranial Magnetic Stimulator: FDA decisions, review times, recalls and adverse event reports over 20 years. 2019, this device’s year, is highlighted.

FDA decisions per year · OBP

12in 2025

2008: 22013: 22014: 12015: 22016: 32017: 82018: 42019: 32020: 12021: 52022: 62023: 72024: 52025: 122026 (partial year): 8
2007high 12 (2025) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · OBP

125in 2025

2016: 101 days median2017: 73 days median2018: 144 days median2019: 156 days median2021: 132 days median2022: 168 days median2023: 119 days median2024: 266 days median2025: 125 days median2026 (partial year): 176 days median
2007high 266 (2024) · low 73 (2017)2026

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

Recalls per year · OBP

1in 2018

2009: 12018: 12026 (partial year): 1
2007high 1 (2009) · low 0 (2007)2026

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

Adverse event reports per year · OBP

81in 2025

2009: 32011: 52012: 32013: 12015: 32016: 62017: 32018: 62019: 122020: 122021: 152022: 592023: 432024: 502025: 81
2007high 81 (2025) · low 0 (2007)2025

MAUDE reports naming product code OBP, 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
20070—00
20082—00
20090—13
20100—00
20110—05
20120—03
20132—01
20141—00
20152—03
2016310106
201787303
2018414416
20193156012
20201—012
20215132015
20226168059
20237119043
20245266050
202512125081
202681761—

What is it indicated for?

HORIZON® is indicated for the treatment of Major Depressive Disorder in adult patients who have failed to achieve satisfactory improvement from prior antidepressant medication in the current episode.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K183376: HORIZON TMS Therapy System with Navigation.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K183376

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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