Development of a Minimally Invasive and Non-invasive Lipolysis Laser System for Effective Fat Reduction.

Area of Science:

• Medical Aesthetics
• Biomedical Engineering
• Laser Technology

Background:

• Obesity is a significant global health concern, driving research into effective fat reduction methods.
• Existing fat reduction techniques necessitate continuous study for improved efficacy and safety.
• Minimally invasive and non-invasive approaches are sought for patient well-being.

Purpose of the Study:

• To develop and evaluate novel minimally invasive and non-invasive laser systems for effective fat reduction.
• To investigate the synergistic effects of combined laser wavelengths on lipolysis.
• To assess the safety and efficacy of the developed laser systems.

Main Methods:

• Development of a minimally invasive laser system using 1980 nm and 2300 nm wavelengths for direct fat tissue irradiation.
• Creation of a non-invasive laser system utilizing a 1060 nm wavelength for hyperthermia treatment of adipocytes.
• Utilized nonlinear crystals controlled by temperature to generate mid-infrared wavelengths.
• Incorporated a cooling system in the non-invasive hand-piece for skin protection.
• Conducted animal experiments to evaluate system effectiveness and safety, including combined usage.

Main Results:

• The developed mid-infrared laser system (1980 nm, 2300 nm) demonstrated significant fat reduction at low energy (1.3 W).
• A combined approach using 1060 nm followed by 1980 nm and 2300 nm lasers yielded approximately 35% lipolysis.
• The non-invasive system employed a 1060 nm In gallium arsenide (GaAs) diode laser with a 4 × 8 cm² irradiation area.

Conclusions:

• A low-power (1.3 W) mid-infrared laser system (1980 nm, 2300 nm) was successfully developed.
• The system exhibits a notable lipolysis effect, indicating potential for effective fat reduction.
• The study highlights the efficacy of specific laser wavelengths and combined therapeutic approaches for adipocyte reduction.