510(k) Report

510(k) · Cleared

Cleared

Mobile Laser Unit (1001-N2); Thermoguide Workstation (1100-N1); Laser Applicator (4012-N5, 4017-N2, 4017-N4); MR Introducer (4013-N6)

K251298510(k) TraditionalCleared Sep 4, 2025129-day reviewClass II21 CFR 878.4810

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

Clinical Laserthermia Systems, AB · ONO Neurosurgical Laser With Mr Thermography

Cleared on Sep 4, 2025 as substantially equivalent to K214125 (Clinical Laserthermia Systems, AB, 2022) and 1 other predicate after a 129-day review. Its family tree reaches back 20 generations to 1999. 2 of the 43 devices in its family, counting itself, have a Class I recall.

Decided
Sep 4, 2025
Review
129 days
Class
Class II
Product code
ONO
Recalls
None
Predicates
2

Its longest line of descent runs back 20 generations to K983831 (1999). 42 ancestors in all, the oldest K913475 (1991). No later device cites it as a predicate yet. 2 of the 43 devices in this family, counting this one, have a Class I recall.

Other ancestors, by year cleared 2022: 1 other ancestor2019: 1 other ancestor2023: 1 other ancestor2008: 1 other ancestor2013: 1 other ancestor2007: 1 other ancestor2006: 4 other ancestors1999: 1 other ancestor2003: 1 other ancestor2001: 3 other ancestors1997: 1 other ancestor1996: 1 other ancestor1995: 1 other ancestor1998: 1 other ancestor1991: 2 other ancestors2000: 1 other ancestorK983831 · VECTORVISION2 · Brainlab AG · 1999K014256 · Kolibri Igs Systems · Brainlab AG · 2002K042721 · Kolibri Spine · Brainlab AG · 2005K062086 · Navivision · Brainlab AG · 2006K081509 · Monteris Medical Autolitt Laser Probe · Monteris Medical, · 2009×2: 2 generations cleared close together, K120561 (2013), K131278 (2013) K141983 · Neuroblate System · Monteris Medical Corp. · 2014 · recalledK143457 · NeuroBlate System · Monteris Medical, Inc. · 2015 · Class I recallK162762 · NeuroBlate System · Monteris Medical, Inc. · 2016×4: 4 generations cleared close together, K170724 (2017), K171255 (2017), K172881 (2017), K173305 (2017) K182036 · NeuroBlate System · Monteris Medical, · 2018K193375 · NeuroBlate System · Monteris Medical, · 2020K201056 · NeuroBlate System · Monteris Medical, Inc. · 2020K211269 · Visualase MRI-Guided Laser Ablation System (SW 3.4) · Medtronic Navigation, Inc. · 2022 · recalledK231061 · NeuroBlate System · Monteris Medical, · 2023K240877 · Monteris Medical NeuroBlate System · Monteris Medical, · 20241990200020102020
Other ancestors, by generation 1 generation back: 1 other ancestor2 generations back: 1 other ancestor3 generations back: 2 other ancestors4 generations back: 2 other ancestors5 generations back: 5 other ancestors6 generations back: 5 other ancestors7 generations back: 4 other ancestors8 generations back: 2 other ancestors K240877 · Monteris Medical NeuroBlate System · Monteris Medical, · 2024K231061 · NeuroBlate System · Monteris Medical, · 2023K211269 · Visualase MRI-Guided Laser Ablation System (SW 3.4) · Medtronic Navigation, Inc. · 2022 · recalledK201056 · NeuroBlate System · Monteris Medical, Inc. · 2020K193375 · NeuroBlate System · Monteris Medical, · 2020K182036 · NeuroBlate System · Monteris Medical, · 2018K173305 · NeuroBlate System · Monteris Medical, · 2017K172881 · NeuroBlate System · Monteris Medical, · 2017K171255 · Monteris Medical NeuroBlate System · Monteris Medical, Inc. · 2017 · Class I recallK170724 · NeuroBlate System · Monteris Medical, · 2017K162762 · NeuroBlate System · Monteris Medical, Inc. · 2016K143457 · NeuroBlate System · Monteris Medical, Inc. · 2015 · Class I recallK141983 · Neuroblate System · Monteris Medical Corp. · 2014 · recalledK131278 · Monteris Medical Neuroblate System · Monteris Medical, Inc. · 2013 · recalledK120561 · Neuroblate System · Monteris Medical, Inc. · 2013 · recalledK081509 · Monteris Medical Autolitt Laser Probe · Monteris Medical, · 2009K062086 · Navivision · Brainlab AG · 2006K042721 · Kolibri Spine · Brainlab AG · 2005K014256 · Kolibri Igs Systems · Brainlab AG · 2002K983831 · VECTORVISION2 · Brainlab AG · 1999−20−15−10−50
  1. Root · 20 generations backK983831 VECTORVISION2Brainlab AG · 1999
  2. 16 generations between
  3. 3 generations backK211269 Visualase MRI-Guided Laser Ablation System (SW 3.4)Medtronic Navigation, Inc. · 2022 · Recalled
  4. 2 generations backK231061 NeuroBlate SystemMonteris Medical, · 2023
  5. 1 generation backK240877 Monteris Medical NeuroBlate SystemMonteris Medical, · 2024
  6. This deviceK251298 Mobile Laser Unit (1001-N2); Thermoguide Workstation (1100-N1)…Clinical Laserthermia Systems, AB · 2025
Show all 20 generations
  1. Root · 20 generations backK983831 VECTORVISION2Brainlab AG · 1999
  2. 19 generations backK014256 Kolibri Igs SystemsBrainlab AG · 2002
  3. 18 generations backK042721 Kolibri SpineBrainlab AG · 2005
  4. 17 generations backK062086 NavivisionBrainlab AG · 2006
  5. 16 generations backK081509 Monteris Medical Autolitt Laser ProbeMonteris Medical, · 2009
  6. 15 generations backK120561 Neuroblate SystemMonteris Medical, Inc. · 2013 · Recalled
  7. 14 generations backK131278 Monteris Medical Neuroblate SystemMonteris Medical, Inc. · 2013 · Recalled
  8. 13 generations backK141983 Neuroblate SystemMonteris Medical Corp. · 2014 · Recalled
  9. 12 generations backK143457 NeuroBlate SystemMonteris Medical, Inc. · 2015 · Recalled (Class I)
  10. 11 generations backK162762 NeuroBlate SystemMonteris Medical, Inc. · 2016
  11. 10 generations backK170724 NeuroBlate SystemMonteris Medical, · 2017
  12. 9 generations backK171255 Monteris Medical NeuroBlate SystemMonteris Medical, Inc. · 2017 · Recalled (Class I)
  13. 8 generations backK172881 NeuroBlate SystemMonteris Medical, · 2017
  14. 7 generations backK173305 NeuroBlate SystemMonteris Medical, · 2017
  15. 6 generations backK182036 NeuroBlate SystemMonteris Medical, · 2018
  16. 5 generations backK193375 NeuroBlate SystemMonteris Medical, · 2020
  17. 4 generations backK201056 NeuroBlate SystemMonteris Medical, Inc. · 2020
  18. 3 generations backK211269 Visualase MRI-Guided Laser Ablation System (SW 3.4)Medtronic Navigation, Inc. · 2022 · Recalled
  19. 2 generations backK231061 NeuroBlate SystemMonteris Medical, · 2023
  20. 1 generation backK240877 Monteris Medical NeuroBlate SystemMonteris Medical, · 2024
  21. This deviceK251298 Mobile Laser Unit (1001-N2); Thermoguide Workstation (1100-N1)…Clinical Laserthermia Systems, AB · 2025

Class I recalls in this family

View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−20K983831VECTORVISION2Brainlab AG1999—
−19K014256Kolibri Igs SystemsBrainlab AG2002—
−18K042721Kolibri SpineBrainlab AG2005—
−17K062086NavivisionBrainlab AG2006—
−16K081509Monteris Medical Autolitt Laser ProbeMonteris Medical,2009—
−15K120561Neuroblate SystemMonteris Medical, Inc.20131
−14K131278Monteris Medical Neuroblate SystemMonteris Medical, Inc.20131
−13K141983Neuroblate SystemMonteris Medical Corp.20142
−12K143457NeuroBlate SystemMonteris Medical, Inc.2015Class I
−11K162762NeuroBlate SystemMonteris Medical, Inc.2016—
−10K170724NeuroBlate SystemMonteris Medical,2017—
−9K171255Monteris Medical NeuroBlate SystemMonteris Medical, Inc.2017Class I
−8K172881NeuroBlate SystemMonteris Medical,2017—
−7K173305NeuroBlate SystemMonteris Medical,2017—
−6K182036NeuroBlate SystemMonteris Medical,2018—
−5K193375NeuroBlate SystemMonteris Medical,2020—
−4K201056NeuroBlate SystemMonteris Medical, Inc.2020—
−3K211269Visualase MRI-Guided Laser Ablation System (SW 3.4)Medtronic Navigation, Inc.20221
−2K231061NeuroBlate SystemMonteris Medical,2023—
−1K240877Monteris Medical NeuroBlate SystemMonteris Medical,2024—
0 (this device)K251298Mobile Laser Unit (1001-N2); Thermoguide Workstation (1100-N1); Laser…Clinical Laserthermia Systems, AB2025—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
199120
199510
199610
199710
199810
199910
200010
200130
200310
200640
200710
200810
201310
201910
202210
202310
FIG. 1 — Lineage of K251298, 1999–2025Source: 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.

2 devices in this family have a Class I recall. 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 ONO device

  1. #1 K240877 Monteris Medical NeuroBlate Systemscore 24.9 · 19 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
*K214125TRANBERG Thermoguide Therapy System
Summary page 5
…dicate Device Common Neurosurgical Laser with Neurosurgical Laser with MR Name: MR Thermography Thermography Predicate Device Premarket K214125 K240877 Notification Number: Predicate Device 21 CFR 878.4810; Laser 21 CFR 878.4810; Laser Cl…
Clinical Laserthermia Systems, AB2022—
*K240877Monteris Medical NeuroBlate System
Summary page 5
…rgical Laser with Neurosurgical Laser with MR Name: MR Thermography Thermography Predicate Device Premarket K214125 K240877 Notification Number: Predicate Device 21 CFR 878.4810; Laser 21 CFR 878.4810; Laser Classification s…
Monteris Medical,2024—

Also cleared against K214125: 1 other device →

What descends from it?

No later submission names this one as a predicate yet.

Has anything in its family been recalled? (2 Class I)

No FDA recall names this device.

Relatives with a Class I recall

Class I is FDA’s most serious recall class. A recall in the family tree is context for this device, not evidence about it.

  • K171255Monteris Medical NeuroBlate SystemMonteris Medical, Inc. · 2017 · 4 generations back · ◆ on the line of descent in FIG. 11 Class I recall
  • K143457NeuroBlate SystemMonteris Medical, Inc. · 2015 · 4 generations back · ◆ on the line of descent in FIG. 11 Class I recall

What does this lineage say?

  • The line of descent spans 26 years and passes through 6 companies; a new generation was cleared every 1.2 years on median.
  • 14 of the 42 ancestors have a recall of any class; 2 have a Class I recall.
  • 1 other device also cites its predicate K214125.

How does its category compare?

All ONO devices

ONO Neurosurgical Laser With Mr Thermography: FDA decisions, review times, recalls and adverse event reports over 20 years. 2025, this device’s year, is highlighted.

FDA decisions per year · ONO

3so far in 2026, the most since 2007

2022: 22024: 12025: 22026 (partial year): 3
2007high 3 (2026) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · ONO

57in 2026

2026 (partial year): 57 days median
2007high 57 (2026)2026

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

Recalls per year · ONO

1in 2022

2022: 1
2007high 1 (2022) · low 0 (2007)2026

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

Adverse event reports per year · ONO

1in 2017

2017: 1
2007high 1 (2017) · low 0 (2007)2025

MAUDE reports naming product code ONO, 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
20080—00
20090—00
20100—00
20110—00
20120—00
20130—00
20140—00
20150—00
20160—00
20170—01
20180—00
20190—00
20200—00
20210—00
20222—10
20230—00
20241—00
20252—00
20263570—

What is it indicated for?

The Thermoguide Therapy System is indicated for use to necrotize or coagulate soft tissue through interstitial irradiation or thermal therapy under magnetic resonance imaging (MRI) guidance in medicine and surgery in neurosurgery for wavelengths of 1064nm. When therapy is performed under MRI guidance, and when data from compatible MRI sequences is available, the Thermoguide Therapy System can process images using proton resonance-frequency (PRF) shift…

Read the full statement (174 words)

The Thermoguide Therapy System is indicated for use to necrotize or coagulate soft tissue through interstitial irradiation or thermal therapy under magnetic resonance imaging (MRI) guidance in medicine and surgery in neurosurgery for wavelengths of 1064nm.

When therapy is performed under MRI guidance, and when data from compatible MRI sequences is available, the Thermoguide Therapy System can process images using proton resonance-frequency (PRF) shift analysis and image subtraction to relate changes in complex phase angle back to relative changes in tissue temperature during therapy. The image data may be manipulated and viewed in a number of different ways, and the values of data at certain selected points may be monitored and/or displayed over time.

The Thermoguide Therapy System is compatible with 1.5T and 3.0T MR scanner systems: Siemens MRI Magnetom and GE MRI Signa. When interpreted by a trained physician, this device provides information that may be useful in the determination or assessment of thermal therapy. Patient management decisions should not be made solely on the basis of analysis using the Thermoguide Therapy System

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K251298: Mobile Laser Unit (1001-N2); Thermoguide Workstation (1100-N1); Laser Applicator (4012-N5, 4017-N2, 4017-N4); MR Introducer (4013-N6).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K251298

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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