ABSTRACT
Objective To develop a new scalpel which can be used in flap dissection at breast surgery and to investigate the method by which clinicians could improve the research and development of the new surgical instruments. Methods SolidWorks software was used to turn the design ideas into 3D format on personal computer, and the engineering drawing was applied for patent before being submitted to manufacturers. Results Engineering drawing met the requirements of patent application and production, and then the model smoothly entered into animal experiments. Conclusion Clinicians should study and utilize some kinds of computer aided design (CAD) software so as to not only avoid lots of modifications during trial production, but also shorten the design cycle and improve production efficiency. This method may serve as a reference for other designs.