510(k) · Cleared
Cleared1927nm Thulium Laser System (PZ-DJG75-01, PZ-DJG75-02)
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Zhengzhou PZ Laser Slim Technology Co., Ltd. · GEX Powered Laser Surgical Instrument
Cleared on Oct 23, 2025 as substantially equivalent to K241406 (Wontech Co., Ltd., 2024) after a 56-day review. Its family tree reaches back 17 generations to 1992. 1 later device descends from it.
- Decided
- Oct 23, 2025
- Review
- 56 days
- Class
- Class II
- Product code
- GEX
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 17 generations to K910422 (1992). 136 ancestors in all, the oldest K820106 (1982). 1 later device descends from it, 1 citing it directly.
- Root · 17 generations backK910422 Model RD-1200 Ruby Laser SystemSpectrum Medical Technologies, Inc. · 1992
- 13 generations between
- 3 generations backK182173 Joule SystemSciton, Inc · 2019
- 2 generations backK223727 LavieenWontech Co., Ltd. · 2023
- 1 generation backK241406 LavieenWontech Co., Ltd. · 2024
- This deviceK252732 1927nm Thulium Laser System (PZ-DJG75-01, PZ-DJG75-02)Zhengzhou PZ Laser Slim Technology Co., Ltd. · 2025
- Descendant · cites it directly · 0 of its ownK261589 1927nm Thulium Laser System (PZ-DJG85-01, PZ-DJG85-02)Zhengzhou PZ Laser Slim Technology Co., Ltd. · 2026
Show all 17 generations
- Root · 17 generations backK910422 Model RD-1200 Ruby Laser SystemSpectrum Medical Technologies, Inc. · 1992
- 16 generations backK961279 Sharplan Lasers, Inc. Ruby Laser SystemSharplan Lasers, Inc. · 1996
- 15 generations backK962446 Sharplan Ruby Laser SystemSharplan Lasers, Inc. · 1997
- 14 generations backK974536 Photoderm HR SystemEsc Medical Systems, Ltd. · 1998
- 13 generations backK991935 Epilight Hair Removal System, Photoderm HR SystemEsc Medical Systems, Ltd. · 2000
- 12 generations backK014040 Family of Altus Medical Modified Coolglide Aesthetic Lasers, Models…Altus Medical, Inc. · 2002
- 11 generations backK023193 Candela Gentle Yag Laser SystemCandela Corp. · 2002
- 10 generations backK033172 Candela Gentleyag Family of Laser SystemsCandela Corp. · 2003
- 9 generations backK040617 Reliant Laser System IIReliant Technologies, Inc. · 2004
- 8 generations backK060310 Fraxel II SR Laser System and AccessoriesReliant Technologies, Inc. · 2006
- 7 generations backK062303 Fraxel II SR Laser SystemReliant Technologies, Inc. · 2007
- 6 generations backK063808 Fraxel IV SR Laser SystemReliant Technologies, Inc. · 2007
- 5 generations backK130193 Fraxel Dual 1550/1927 Laser SystemSolta Medical, Inc. · 2013
- 4 generations backK171009 LASEMD Laser SystemLutronic Corporation · 2017
- 3 generations backK182173 Joule SystemSciton, Inc · 2019
- 2 generations backK223727 LavieenWontech Co., Ltd. · 2023
- 1 generation backK241406 LavieenWontech Co., Ltd. · 2024
- This deviceK252732 1927nm Thulium Laser System (PZ-DJG75-01, PZ-DJG75-02)Zhengzhou PZ Laser Slim Technology Co., Ltd. · 2025
Most influential descendants
Showing 1 of 1 · See all- K2615891927nm Thulium Laser System (PZ-DJG85-01, PZ-DJG85-02)Zhengzhou PZ Laser Slim Technology Co., Ltd. · 2026 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −17 | K910422 | Model RD-1200 Ruby Laser System | Spectrum Medical Technologies, Inc. | 1992 | — |
| −16 | K961279 | Sharplan Lasers, Inc. Ruby Laser System | Sharplan Lasers, Inc. | 1996 | — |
| −15 | K962446 | Sharplan Ruby Laser System | Sharplan Lasers, Inc. | 1997 | — |
| −14 | K974536 | Photoderm HR System | Esc Medical Systems, Ltd. | 1998 | — |
| −13 | K991935 | Epilight Hair Removal System, Photoderm HR System | Esc Medical Systems, Ltd. | 2000 | — |
| −12 | K014040 | Family of Altus Medical Modified Coolglide Aesthetic Lasers, Models Coolglide… | Altus Medical, Inc. | 2002 | — |
| −11 | K023193 | Candela Gentle Yag Laser System | Candela Corp. | 2002 | — |
| −10 | K033172 | Candela Gentleyag Family of Laser Systems | Candela Corp. | 2003 | — |
| −9 | K040617 | Reliant Laser System II | Reliant Technologies, Inc. | 2004 | — |
| −8 | K060310 | Fraxel II SR Laser System and Accessories | Reliant Technologies, Inc. | 2006 | — |
| −7 | K062303 | Fraxel II SR Laser System | Reliant Technologies, Inc. | 2007 | — |
| −6 | K063808 | Fraxel IV SR Laser System | Reliant Technologies, Inc. | 2007 | — |
| −5 | K130193 | Fraxel Dual 1550/1927 Laser System | Solta Medical, Inc. | 2013 | — |
| −4 | K171009 | LASEMD Laser System | Lutronic Corporation | 2017 | — |
| −3 | K182173 | Joule System | Sciton, Inc | 2019 | — |
| −2 | K223727 | Lavieen | Wontech Co., Ltd. | 2023 | — |
| −1 | K241406 | Lavieen | Wontech Co., Ltd. | 2024 | — |
| 0 (this device) | K252732 | 1927nm Thulium Laser System (PZ-DJG75-01, PZ-DJG75-02) | Zhengzhou PZ Laser Slim Technology Co., Ltd. | 2025 | — |
| +1 | K261589 | 1927nm Thulium Laser System (PZ-DJG85-01, PZ-DJG85-02) | Zhengzhou PZ Laser Slim Technology Co., Ltd. | 2026 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1982 | 2 | 0 |
| 1986 | 1 | 0 |
| 1988 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 12 | 0 |
| 1995 | 9 | 0 |
| 1996 | 12 | 0 |
| 1997 | 10 | 0 |
| 1998 | 9 | 0 |
| 1999 | 7 | 0 |
| 2000 | 11 | 0 |
| 2001 | 9 | 0 |
| 2002 | 11 | 0 |
| 2003 | 9 | 0 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2026 | 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? (1)
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 |
|---|---|---|---|
| * | K241406 | LavieenSummary page 7…rix 0.2-20.0ms 0.2ms 6. Identification of Predicate Device 2/6 510(k) Summary 510(k) Number: K241406 Product Name: Lavieen Manufacturer: WON TECH Co., Ltd 7. Identification of Reference Device 510(k) Number: K182173 Product Name… | 2024 |
| † | K182173 | Joule System | 2019 |
What descends from it? (1)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K261589 | 1927nm Thulium Laser System (PZ-DJG85-01, PZ-DJG85-02) | 2026 | 0 |
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 33 years and passes through 11 companies; a new generation was cleared every 1.3 years on median.
- 6 of the 136 ancestors have a recall of any class.
- Of its descendants, K261589 (Zhengzhou PZ Laser Slim Technology Co., Ltd., 2026) has gone furthest, with 0 descendants of its own.
How does its category compare?
All GEX devicesGEX Powered Laser Surgical Instrument: FDA decisions, review times, recalls and adverse event reports over 20 years. 2025, 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?
1927nm Thulium Laser System is indicated for use in dermatological procedures requiring coagulation of soft tissue, treatment of actinic keratosis and treatment of benign pigmented lesions such as, but not limited to, lentigos (age spots), solar lentigos (sun spots) and ephelides (freckles).
Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K252732 · printed Nov 5, 2026
Cite this page
510(k) Report. “K252732: 1927nm Thulium Laser System (PZ-DJG75-01, PZ-DJG75-02).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K252732
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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