Loading...

Design for Fabrication of a Knee Prosthesis Wear Simulator

Tahsili Seghale, Alireza | 2020

502 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 52736 (08)
  4. University: Sharif University of Technology
  5. Department: Mechanical Engineering
  6. Advisor(s): Durali, Mohammad
  7. Abstract:
  8. Total knee replacement surgery is the most common joint replacement in the world. Considering the increasing rate of this procedure and costs and difficulties of the repeated operation, many efforts have been made to improve the performance and lifetime of implants. The Polyethylene component of the implant is the most prone component to fail due to wear. To evaluate new knee prosthesis designs, it is necessary to have a wear test simulator. Objective of this project is to detail design a knee prosthesis wear simulator according to ISO 14243 in order to investigate the performance of prosthesises in long term and under in-vivo conditions. During this project, studies have been made to get familiar with knee anatomy, knee prosthesis and standard test requirements and wear simulator design constraints were identified based on information on standard, literature and commercial products. The mechanism has been designed conforming to joint coordinate system and the kinematics of the mechanism have been investigated. After looking at different actuators, hydraulic actuators with electro servo hydraulic valves have been used to control and actuate the system and the required hydraulic power pack have been designed. Mechanical structure of the system has been designed and analysed based on loadings and eventually dynamic modelling of the system and design of suggested controller have been done. The complete package needed to fabricate the system including implementation diagrams, mechanical components and control systems is provided and attached to the report. Also accurate evaluation of manufacturing and suppliers have been provided. Manufacturing the system is awaiting for funding and budget providing
  9. Keywords:
  10. Simulators ; Wear ; Hydraulics ; Knee Prosthesis ; Knee Joint ; ISO 14243 Standard

 Digital Object List

 Bookmark

No TOC