Wang Xuechang's Invention and Creation

(1) Miniature trocar knife, utility model patent, authorized, China patent number: CN201020268973; ;

(2) Multifunctional thread embedding needle, patent for utility model, authorized, China patent number: CN201020257533; ;

(3) Arc-edged needle knife, utility model patent, authorized, China patent number: CN 2012205907990; ;

(4) Arc-edged needle, patent for utility model, authorized, China patent number: CN20 12206568077.