Geometry Modeling and Simulation of the Wire-Driven Bending Section of a Flexible Ureteroscope

Research and development of biomedical engineering boost in recent years. In which the increasing employment of endoscopy proves itself a trustworthy surgical technology to replace the traditional operations. It is mainly because it lowers the surgical risk as well as the patient's healing time by performing non- or minimally invasive surgery. A flexible endoscope is able to adopt the tortuous channels within a human body. It enables surgeon to not only observe but also carry out therapy within the patient's body. It can thank to the tiny bending section embedded in the front of it. Although many products have been bringing to the market for decades, there is no systematic study about the design or specification of the endoscopes. The purpose of this research is to configure the information on designing the bending section of a flexible ureteroscope which is particularly used in urological surgery. Geometry modeling of the bending section consisting of one and two sub-sections will be given. A program is composed for simulating the deflection of the bending section with different values of the parameters.