The core design concept of the dual-wavelength system is to leverage the strengths of both wavelengths, combining their physical properties in different tissues.
Complementary functions, higher efficiency: The 980nm wavelength is efficiently absorbed by hemoglobin, excelling at coagulation and hemostasis. The 1470nm wavelength is efficiently absorbed by water, excelling at vaporization and cutting. The dual-wavelength system can simultaneously or rapidly switch between the advantages of both, achieving “cutting and coagulating simultaneously,” thus improving surgical efficiency.
Balance between cutting efficiency and thermal damage: A 2025 study of ex vivo porcine colon tissue published in *Lasers in Medical Science* directly compared the effects of two single-wavelength and dual-wavelength lasers. The results showed that the dual-wavelength laser required significantly less power to achieve complete penetration of colon tissue than the single-wavelength laser (6:6W for dual-wavelength vs. 72W for 980nm, and 50W for 1470nm), exhibiting “enhanced cutting efficiency and reduced thermal damage.” This may be more significant for protecting the delicate perianal structures and reducing postoperative edema and pain.
Post time: Jul-08-2026