K-numberK243957
Device namePICOALEX
ApplicantWontech Co., Ltd.
Product codeGEX
Device classClass II
Decision dateMar 12, 2025
DecisionSubstantially Equivalent
Regulation878.4810
AI Summary extracted from FDA summary PDF · never regenerated
Intended use

The PICOALEX is an Alexandrite laser system indicated for tattoo and benign pigmented lesion removal, including Nevus of Ota, Hori macules, and Melasma. The device consists of a laser head with Alexandrite medium and xenon flash lamps, a power supply, cooling system, articulated delivery arm with handpiece, and software-controlled interface for treatment parameter selection.

Technological characteristics

The device operates at 755 nm wavelength with maximum 300 mJ ± 20% output power, pulse width of 600-800 picoseconds, repetition rate of 1-10 Hz, and adjustable spot sizes (Zoom: 2-8 mm ± 20%; MLA: 3.5-8 mm ± 20%). Maximum average fluence is 6.37 J/cm². The handpiece tip material is aluminum powder, contacting intact skin for limited duration (<24 hours).

Test standards cited

IEC 60601-1:2005/(R)2012 and A1:2012 (medical electrical safety), IEC 60601-1-6 Edition 3.1 2013 (essential performance), IEC 60601-2-22:2007/A:2012 (particular laser requirements), IEC 60825-1 Edition 3.0 2014 (laser product safety and classification), IEC 60601-1-2:2014/A1:2020 (electromagnetic compatibility), and ISO 10993-1 (biocompatibility).

Substantial equivalence argument

PICOALEX is substantially equivalent to the PicoSure predicate (K210226) because both are Alexandrite laser systems using identical 755 nm wavelength, same maximum output power (300 mJ ± 20%), same maximum fluence (6.37 J/cm²), identical repetition rates (1-10 Hz), and address the same intended uses for tattoo and benign pigmented lesion removal. The pulse width range (600-800 ps) is narrower but fully contained within the predicate's range (450-900 ps), and spot size differences do not raise safety concerns since larger spot sizes disperse energy more broadly.

Extracted by AI from the official FDA summary PDF →
Source

View the full FDA submission: accessdata.fda.gov

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