Návrh a pevnostní kontrola vybraných částí mechanismu radiofrekvenčního operačního nástroje

Abstract

The aim of this work is to propose an operational mechanism of laparoscopic tool for better firing circuit for the liver and better access to difficult places available in the liver. Furthermore, should retain compatibility with the radiofrequency generator elektrochirurgickým Rita. Bachelor thesis can be divided into theoretical and practical parts. The theoretical part deals with the history of laparoscopy, and instruments during laparoscopic surgery. The practical part is divided into two chapters, the first chapter focuses on the design of mechanisms and describes a laparoscopic surgical instrument. The second chapter deals with the practical part of the finite element method, force-ratios, stress control, loss of shape stability and modal analysis of the selected mechanism.