Improve the use times of holmium laser fiber.

"The specifications of medical holmium laser fiber are 276 microns, 365μm microns, 550μm microns and 800μm microns, which can meet the needs of different clinical treatments. The optical fiber adopts SMA-905 international standard interface, which is consistent with most holmium laser treatment equipment on the market. Holmium laser fiber has a strong and wear-resistant coating outside, which can protect the fiber from damage and fracture during use and ensure the durability of the product. "