No Cover Image

Journal article 806 views 108 downloads

The Micro Topology and Statistical Analysis of the Forces of Walking and Failure of an ITAP in a Femur

Euan Langford, Christian Griffiths, Andrew Rees, Josh Bird

Micromachines, Volume: 12, Issue: 3

Swansea University Authors: Christian Griffiths, Andrew Rees

  • 56438.pdf

    PDF | Version of Record

    Copyright: © 2021 by the authors. This article is an open access article distributed under the terms of the Creative Commons Attribution (CC BY) license

    Download (5.01MB)

Check full text

DOI (Published version): 10.3390/mi12030298

Abstract

This paper studies the forces acting upon the Intraosseous Transcutaneous Amputation Prosthesis, ITAP, that has been designed for use in a quarter amputated femur. To design in a failure feature, utilising a safety notch, which would stop excessive stress, σ, permeating the bone causing damage to th...

Full description

Published in: Micromachines
ISSN: 2072-666X
Published: MDPI AG 2021
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa56438
Tags: Add Tag
No Tags, Be the first to tag this record!
Abstract: This paper studies the forces acting upon the Intraosseous Transcutaneous Amputation Prosthesis, ITAP, that has been designed for use in a quarter amputated femur. To design in a failure feature, utilising a safety notch, which would stop excessive stress, σ, permeating the bone causing damage to the user. To achieve this, the topology of the ITAP was studied using MATLAB and ANSYS models with a wide range of component volumes. The topology analysis identified critical materials and local maximum stresses when modelling the applied loads. This together with additive layer manufacture allows for bespoke prosthetics that can improve patient outcomes. Further research is needed to design a fully functional, failure feature that is operational when extreme loads are applied from any direction. Physical testing is needed for validation of this study. Further research is also recommended on the design so that the σ within the ITAP is less than the yield stress, σs, of bone when other loads are applied from running and other activities.
Keywords: prostheses; ITAP; micro topology; ANSYS; MATLAB; additive manufacture
College: Faculty of Science and Engineering
Issue: 3

Similar Items