CureLight Medical Diode Laser Systems (CureLight F2-A15; CureLight F2-B15; CureLight F2-A30; CureLight F2-B30; CureLight F3-AB30; CureLight F3-AB60.)

The CureLight Medical Diode Laser Systems are infrared diode laser devices intended to emit energy in the infrared spectrum to provide topical heating for temporary relief of minor muscle and joint pain, muscle spasm, pain and stiffness associated with minor arthritis, promoting relaxation of muscle tissue, and temporarily increasing local blood circulation. Some models (F2-B15, F2-B30, F3-AB30, F3-AB60) are also indicated for temporary increase of clear nail in patients with onychomycosis.

The proposed devices use GaAlAs diode lasers at 810nm and/or 980nm wavelengths with output power ranging from 0-15W to 0-60W depending on model. Key differences from predicates include: spot diameter 4-5cm (vs 3.5-5cm), working distance 0-3cm for handpiece variants, operation modes of CW and repeat pulse, pulse widths 50μs-1s, pulse repetition rates 1Hz-10KHz, transmission system using 400μm fibers with metal protective armor, and support for both contact and non-contact treatment methods.

IEC60601-1:2005 AMD1 2012 AMD2 2020 (medical electrical equipment general safety), IEC60601-1-2:2014 (electromagnetic compatibility), IEC 60825-1:2014 (laser product safety and classification), and IEC 60601-2-22:2019 (surgical, cosmetic, therapeutic, and diagnostic laser equipment).

The proposed devices use the same diode laser technology and fundamental infrared emission mechanism as predicate devices K242755 and K121363, with identical indications for use. Core output parameters including energy density, power density, and treatment angle are either identical or within the predicate device claims. Differences in spot diameter, working distance, operation modes, pulse parameters, treatment methods, and transmission system are technological modifications that do not raise new safety or effectiveness questions, as they operate within the same thermal safety margins and meet clinical needs.