Wound irrigation syringes are used for clinical wound cleaning and irrigation, requiring smooth internal surface, good sealing and push-pull smoothness, ensuring smooth fluid output, no blockage and leakage. Traditional ultrasonic welding generates internal burrs, blocking fluid channels, affecting irrigation efficiency. DaokeDao laser welding provides a smooth and burr-free welding scheme for medical-grade PP materials, internal channel smoothness Ra ≤0.4μm, ensuring smooth push-pull and fluid output, no blockage. The weld has high sealing performance, no fluid leakage during irrigation, ensuring cleaning effect. The process is clean and residue-free, complying with medical device biocompatibility standards, safe for clinical wound care. The equipment supports high-volume production, with stable quality, helping wound care consumable manufacturers improve product usability and clinical work efficiency.