Minimally invasive endoscopic instrument protective housings protect internal optical lenses and precision operating components, requiring high transparency, seamless sealing and autoclave sterilization resistance, ensuring clear vision and safe use during surgery. Traditional injection molding assembly has gaps, easy entry of disinfectant and blood, damaging internal components, while ultrasonic welding affects optical clarity. DaokeDao laser welding is optimized for medical-grade PC and PMMA optical materials, achieving transparent component seamless welding, with light transmittance ≥92%, no weld marks, bubbles or distortion, ensuring endoscopic imaging clarity. The weld has high sealing performance, reaching IP68 protection grade, blocking blood, disinfectant and moisture intrusion, protecting internal optical components. The material and weld can withstand 134°C high-pressure steam sterilization, no deformation, yellowing or performance degradation, supporting repeated sterilization use. The non-contact process does not damage internal precision components, with high welding consistency. The equipment adapts to miniaturized and curved housing welding, suitable for small-batch customized production of endoscopic manufacturers, improving instrument service life and surgical safety.
