Development of a safety design and evaluation research for minimally invasive surgery robot

Since the minimally invasive surgery robot(MISR) has been widely used in hospitals, people pay more and more attention to the safety of minimally invasive surgery. Based on the analysis of security requirements for medical robots, a novel safety design is proposed. The principle and equivalent stiffness of the safety design was researched by the use of analytical method. In the paper, a kind of safety assessment method is defined and safety assessment is also involved. The safety assessment proved that the protection module could improve safety for medical robots.