510(k) · Cleared
ClearedDiode Laser Therapy Systems (WLA-02)
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Wingderm Electro-Optics, Ltd. · GEX Powered Laser Surgical Instrument
Cleared on Feb 24, 2026 as substantially equivalent to K222064 (Alma Lasers, Inc., 2022) and 4 other predicates after a 190-day review. Its family tree reaches back 26 generations to 1995.
- Decided
- Feb 24, 2026
- Review
- 190 days
- Class
- Class II
- Product code
- GEX
- Recalls
- None
- Predicates
- 5
Its longest line of descent runs back 26 generations to K943450 (1995). 577 ancestors in all, the oldest K771218 (1978). No later device cites it as a predicate yet.
- Root · 26 generations backK943450 Arthrocare Arthroscopic Electrosurgery System Model 970Arthrocare Corp. · 1995
- 22 generations between
- 3 generations backK172193 Modified Alma Lasers Soprano XL™ Family ofMulti-Application &…Alma Lasers, Inc. · 2018
- 2 generations backK222064 The Alma Soprano TitaniumAlma Lasers, Inc. · 2022
- 1 generation backK251329 Diode laser device (RF3120-BI)Risu Medical Technology Co., Ltd. · 2025
- This deviceK252599 Diode Laser Therapy Systems (WLA-02)Wingderm Electro-Optics, Ltd. · 2026
Show all 26 generations
- Root · 26 generations backK943450 Arthrocare Arthroscopic Electrosurgery System Model 970Arthrocare Corp. · 1995
- 25 generations backK961069 Arthrocare Urologic Multi-Electrode Electrosurgery SystemArthrocare Corp. · 1996
- 24 generations backK962445 Arthrocare Dental Electrosurgery SystemArthrocare Corp. · 1996
- 23 generations backK964849 Arthrocare Dermatologic Electrosurgery SystemArthrocare Corp. · 1997
- 22 generations backK973478 Arthrocare Sinus Electrosurgery SystemArthrocare Corp. · 1998
- 21 generations backK981870 Visage Cosmetic Surgery SystemArthrocare Corp. · 1998
- 20 generations backK000944 Thermage Thermacool SystemThermage, Inc. · 2000
- 19 generations backK013034 Modification to: Thermacool IiaThermage, Inc. · 2001
- 18 generations backK013639 Thermage Thermacool TC SystemThermage, Inc. · 2002
- 17 generations backK021402 Thermage Thermacool TC SystemThermage, Inc. · 2002
- 16 generations backK030142 Thermacool TC SystemThermage, Inc. · 2003
- 15 generations backK031671 Polaris WRSyneron Medical, Ltd. · 2003
- 14 generations backK041959 Polaris DS/CometSyneron Medical, Ltd. · 2004
- 13 generations backK053540 Intermedic Diode Laser Family 810NM and 980NM (and the Delivery…Intermedic Arfran, SA · 2006
- 12 generations backK071295 100W Ceralas D 980NM Diode LaserBiolitec, Inc. · 2007
- 11 generations backK072106 150W Ceralas D 980NM Diode LaserBiolitec, Inc. · 2007
- 10 generations backK083682 180W Cerelas D 980NM Diode Laser, Model D180Biolitec, Inc. · 2009
- 9 generations backK082230 Vectra Plus Laser System and AccessoriesXintec Corporation · 2010
- 8 generations backK101916 Joule Multi-Platform SystemSciton, Inc · 2011
- 7 generations backK132806 Fotona F-22 Laser Handpiece (F-Runner), Fotona FS-01 Laser HandpieceFotona D.D. · 2014
- 6 generations backK143723 SP Dynamis, SP Spectro, XS Dynamis, XP Dynamis, XP SpectroFotona D.D. · 2015
- 5 generations backK153671 Family of CoolGlide Aesthetic LasersCutera, Inc. · 2016
- 4 generations backK170626 Modified Alma Lasers Soprano XL Family of Multi-Application &…Alma Lasers, Inc. · 2017
- 3 generations backK172193 Modified Alma Lasers Soprano XL™ Family ofMulti-Application &…Alma Lasers, Inc. · 2018
- 2 generations backK222064 The Alma Soprano TitaniumAlma Lasers, Inc. · 2022
- 1 generation backK251329 Diode laser device (RF3120-BI)Risu Medical Technology Co., Ltd. · 2025
- This deviceK252599 Diode Laser Therapy Systems (WLA-02)Wingderm Electro-Optics, Ltd. · 2026
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −26 | K943450 | Arthrocare Arthroscopic Electrosurgery System Model 970 | Arthrocare Corp. | 1995 | — |
| −25 | K961069 | Arthrocare Urologic Multi-Electrode Electrosurgery System | Arthrocare Corp. | 1996 | — |
| −24 | K962445 | Arthrocare Dental Electrosurgery System | Arthrocare Corp. | 1996 | — |
| −23 | K964849 | Arthrocare Dermatologic Electrosurgery System | Arthrocare Corp. | 1997 | — |
| −22 | K973478 | Arthrocare Sinus Electrosurgery System | Arthrocare Corp. | 1998 | — |
| −21 | K981870 | Visage Cosmetic Surgery System | Arthrocare Corp. | 1998 | — |
| −20 | K000944 | Thermage Thermacool System | Thermage, Inc. | 2000 | — |
| −19 | K013034 | Modification to: Thermacool Iia | Thermage, Inc. | 2001 | — |
| −18 | K013639 | Thermage Thermacool TC System | Thermage, Inc. | 2002 | — |
| −17 | K021402 | Thermage Thermacool TC System | Thermage, Inc. | 2002 | — |
| −16 | K030142 | Thermacool TC System | Thermage, Inc. | 2003 | — |
| −15 | K031671 | Polaris WR | Syneron Medical, Ltd. | 2003 | — |
| −14 | K041959 | Polaris DS/Comet | Syneron Medical, Ltd. | 2004 | — |
| −13 | K053540 | Intermedic Diode Laser Family 810NM and 980NM (and the Delivery Accessories… | Intermedic Arfran, SA | 2006 | — |
| −12 | K071295 | 100W Ceralas D 980NM Diode Laser | Biolitec, Inc. | 2007 | — |
| −11 | K072106 | 150W Ceralas D 980NM Diode Laser | Biolitec, Inc. | 2007 | — |
| −10 | K083682 | 180W Cerelas D 980NM Diode Laser, Model D180 | Biolitec, Inc. | 2009 | — |
| −9 | K082230 | Vectra Plus Laser System and Accessories | Xintec Corporation | 2010 | — |
| −8 | K101916 | Joule Multi-Platform System | Sciton, Inc | 2011 | — |
| −7 | K132806 | Fotona F-22 Laser Handpiece (F-Runner), Fotona FS-01 Laser Handpiece | Fotona D.D. | 2014 | — |
| −6 | K143723 | SP Dynamis, SP Spectro, XS Dynamis, XP Dynamis, XP Spectro | Fotona D.D. | 2015 | — |
| −5 | K153671 | Family of CoolGlide Aesthetic Lasers | Cutera, Inc. | 2016 | — |
| −4 | K170626 | Modified Alma Lasers Soprano XL Family of Multi-Application & Multi-Technology… | Alma Lasers, Inc. | 2017 | — |
| −3 | K172193 | Modified Alma Lasers Soprano XL™ Family ofMulti-Application & Multi-Technology… | Alma Lasers, Inc. | 2018 | — |
| −2 | K222064 | The Alma Soprano Titanium | Alma Lasers, Inc. | 2022 | — |
| −1 | K251329 | Diode laser device (RF3120-BI) | Risu Medical Technology Co., Ltd. | 2025 | — |
| 0 (this device) | K252599 | Diode Laser Therapy Systems (WLA-02) | Wingderm Electro-Optics, Ltd. | 2026 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1978 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 7 | 0 |
| 1991 | 9 | 0 |
| 1992 | 6 | 0 |
| 1993 | 12 | 0 |
| 1994 | 27 | 0 |
| 1995 | 26 | 0 |
| 1996 | 30 | 0 |
| 1997 | 31 | 0 |
| 1998 | 33 | 0 |
| 1999 | 29 | 0 |
| 2000 | 36 | 0 |
| 2001 | 36 | 0 |
| 2002 | 44 | 0 |
| 2003 | 48 | 0 |
| 2004 | 36 | 0 |
| 2005 | 31 | 0 |
| 2006 | 17 | 0 |
| 2007 | 17 | 0 |
| 2008 | 21 | 0 |
| 2009 | 12 | 0 |
| 2010 | 6 | 0 |
| 2011 | 6 | 0 |
| 2012 | 3 | 0 |
| 2013 | 1 | 0 |
| 2014 | 3 | 0 |
| 2015 | 2 | 0 |
| 2017 | 2 | 0 |
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
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 GEX? 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 GEX device
- #1 K222064 The Alma Soprano Titaniumscore 38.1 · 24 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (5)
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.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K222064 | The Alma Soprano TitaniumSummary page 6…Regulation Class Class II Product Code GEX III. PREDICATE DEVICES Type 510(k) # Name Predicate device K222064 The Alma Soprano Titanium Predicate device K251329 Diode laser device (RF3120-BI) Predicate device K17219… | 2022 |
| * | K251329 | Diode laser device (RF3120-BI)Summary page 6…GEX III. PREDICATE DEVICES Type 510(k) # Name Predicate device K222064 The Alma Soprano Titanium Predicate device K251329 Diode laser device (RF3120-BI) Predicate device K172193 Modified Alma Lasers Soprano XL™ Family of… | 2025 |
| * | K172193 | Modified Alma Lasers Soprano XL™ Family ofMulti-Application & Multi-Technology Platforms…Summary page 6…(k) # Name Predicate device K222064 The Alma Soprano Titanium Predicate device K251329 Diode laser device (RF3120-BI) Predicate device K172193 Modified Alma Lasers Soprano XL™ Family of Multi-Application & MultiTechnology Platform… | 2018 |
| * | K170179 | LightSheer Desire; LightSheer Desire Light; LightSheer Duet; LightSheer InfinitySummary page 6…uo and Trio Diode Laser Modules., Soprano Duo and Trio Diode Laser Modules Predicate device K170179 Lightsheer Infinity Predicate device K191321 Primelase Excellence IV. DEVICE DESCRIPTION The Diode Laser… | 2017 |
| * | K191321 | Primelase ExcellenceSummary page 6…er Modules., Soprano Duo and Trio Diode Laser Modules Predicate device K170179 Lightsheer Infinity Predicate device K191321 Primelase Excellence IV. DEVICE DESCRIPTION The Diode Laser Therapy Systems, Model WLA-02, is a medical device intend… | 2019 |
What descends from it?
No later submission names this one as a predicate yet.
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 31 years and passes through 12 companies; a new generation was cleared every 11 months on median.
- 27 of the 577 ancestors have a recall of any class.
- 8 other devices also cite its predicate K222064.
How does its category compare?
All GEX devicesGEX Powered Laser Surgical Instrument: FDA decisions, review times, recalls and adverse event reports over 20 years. 2026, this device’s year, is highlighted.
FDA decisions per year · GEX
83in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · GEX
90in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · GEX
3in 2024
Class I (1 since 2007) Class II/III not classified
Adverse event reports per year · GEX
2,720in 2025
MAUDE reports naming product code GEX, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 73 | 79 | 9 | 342 |
| 2008 | 107 | 86 | 2 | 232 |
| 2009 | 69 | 100 | 0 | 209 |
| 2010 | 50 | 96 | 4 | 1,711 |
| 2011 | 41 | 83 | 18 | 3,024 |
| 2012 | 45 | 118 | 5 | 2,000 |
| 2013 | 46 | 144 | 3 | 2,236 |
| 2014 | 61 | 147 | 6 | 2,036 |
| 2015 | 47 | 112 | 0 | 2,099 |
| 2016 | 51 | 114 | 1 | 2,585 |
| 2017 | 67 | 90 | 5 (1) | 2,977 |
| 2018 | 51 | 78 | 5 | 3,525 |
| 2019 | 41 | 88 | 6 | 2,709 |
| 2020 | 52 | 90 | 1 | 2,183 |
| 2021 | 53 | 123 | 0 | 3,465 |
| 2022 | 60 | 152 | 0 | 2,288 |
| 2023 | 52 | 87 | 6 | 2,337 |
| 2024 | 82 | 90 | 3 | 2,187 |
| 2025 | 83 | 90 | 0 | 2,720 |
| 2026 | 57 | 90 | 2 | — |
What is it indicated for?
The Diode Laser Therapy Systems is intended for use in dermatological procedures requiring coagulation.
Indications for Use:
Mixed Wavelength Handpiece (755 nm + 808 nm + 1064 nm):
-Temporary hair reduction (Hair-Removal function).
-Treatment of benign vascular and vascular-dependent lesions (Vascular-Lesion function).
Single Wavelength Handpieces (755 nm, 808 nm, or 1064 nm):
-Hair removal and permanent hair reduction in all skin types (Fitzpatrick skin types 1-VI).
Permanent hair reduction is defined as the long-term, stable reduction in the number of hairs regrowing when measured at 6, 9, and 12 months after completion of a treatment regimen.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K252599 · printed Nov 6, 2026
Cite this page
510(k) Report. “K252599: Diode Laser Therapy Systems (WLA-02).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K252599
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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