Abstract：There is still a big gap between China and Japan, the United States and other countries in terms of research, development
and manufacturing level of electric curved endoscope for medical use. In order to reveal the global R&D status and development
trends in the technology field, the technological evolution of the main components of the electromechanical curved endoscope was
summarized based on the analysis of the patents related to the electromechanical curved endoscope worldwide. Then the application
degree and effect of sensor technology and robot concept in the patent technology of medical electronic curved endoscope were
analyzed in detail. Through the interpretation of patents, we provid the detailed technical analysis on medical electrical curved, to
help the technical developers to master the technical innovation direction and routes of foreign competitors, to accelerate the pace of
R&D, finally to master the core technologies and break the patent barriers. We hope that this study can provide a detailed technical
interpretation for domestic endoscopic professionals, help researchers master the research direction and path of foreign competitors,
speed up the pace of research and development, master the core technology, and break the patent barriers of competitors.
