2140nm Holmium Laser Lithotripsy Band Pass Filter

2140nm Holmium Laser Lithotripsy Band Pass FilterThe wavelength of holmium laser is 2.1um, which is at the absorption peak of water. The laser energy is efficiently absorbed by the water in the stones and tissues, achieving the dual functions of stone crushing and cutting. Since the penetration depth of holmium laser in tissue is less than 0.4mm, it can perform precise cutting without damaging surrounding tissues. Holmium laser is widely used in urology and can be applied to dermatology, obstetrics and gynecology, gastroenterology, general surgery, ENT and other fields.The stone crushing effect of holmium laser on stones is mainly through a "drilling effect", whereby the stones are "vaporized" to form fine stone dust. Holmium laser is emitted in pulses with an emission time of 0.25 s. The instantaneous power can reach 10 kW, which is enough to crush stones of various compositions and densities. Its tissue penetration depth is <0.5 mm, tissue damage is slight, scars are not easily f…