The single-use sterile vagina dilator is the common medical device mainly used for gynecological examination, and the anti-deforming capability is the key property assuring safety and efficiency. The influence factors of deformation capacity are studied and analyzed according to the testing method described in the standard YY 0336—2013.

In current study, we develop a new kinematic database software for lower limbs based on internet. This article present technical features as well as functions of the software, further present the development idea and working process. This software can be used to store kinematic data of lower limbs in any motion state, and take data statistics, from macro perspectives, it works for doctors to improve the clinical treatment level and rehabilitation training, evaluate the motion ability of lower limb of patient, help industry and medical device manufacturers with lower limb prosthesis design, it also can provide technical support to the production's ergonomic design.