The Simulation Design of Umbrella Gasless Laparoscopic Device with Variable Cross-Section Spokes

Abstract

A kind of umbrella gasless laparoscopic device with variable cross-section spokes is designed for the common problems of gasless laparoscopic devices. Under working conditions, the device can better simulate the abdominal shape of gas laparoscopic surgery, provide good surgical views, improve the stress conditions of the spokes and the abdominal wall and avoid the secondary injure to patients.The spoke, the key part of the device, is simulated by applying the analysis software ANSYS to obtain the ideal design size of its variable cross-section. Furthermore, physical prototype tests are done on the device, whose results show that the device can be opened as spherical and meet the design requirements.