NOVEL METHODS FOR SOCKET FABRICATION AND EVALUATION IN TRANSTIBIAL PROSTHETIC APPLICATIONS
Lead Research Organisation:
Brunel University London
Department Name: Mechanical and Aerospace Engineering
Abstract
Universal lower limb prosthetics systems looking at biological/mechanical interface and tissue loading, in conjunction with mechanical performance of prosthetic feet.
This will provide holistic research into the specific functions and effectiveness of artificial limbs, hopefully leading to a new generation of functional seamless prosthetics.
This will provide holistic research into the specific functions and effectiveness of artificial limbs, hopefully leading to a new generation of functional seamless prosthetics.
Organisations
People |
ORCID iD |
| Xinli Du (Primary Supervisor) | |
| Sean Cullen (Student) |
Studentship Projects
| Project Reference | Relationship | Related To | Start | End | Student Name |
|---|---|---|---|---|---|
| EP/R512990/1 | 01/10/2018 | 30/09/2023 | |||
| 2284989 | Studentship | EP/R512990/1 | 01/10/2019 | 31/03/2023 | Sean Cullen |
| EP/T518116/1 | 01/10/2020 | 30/09/2025 | |||
| 2284989 | Studentship | EP/T518116/1 | 01/10/2019 | 31/03/2023 | Sean Cullen |
| Description | There are two key findings associated with this work, firstly that photogrammetry is not able to accurately scan the interior of prosthetic sockets, and secondly, that motion capture can be used to track the relative motion present in the limb-socket interface in five degrees of freedom (5DoF). In contrast to the existing literature, it was shown that photogrammetric scans of socket interiors have distorted topography near the base. This reduced accuracy was previously perceived to be the result of a global error that could be compensated for by a generalised volume increase/decrease. Using a reversed digital twin comparison technique, a method was identified capable of scannig positive socket moulds with sufficient accuracy for clinical use. As a means of quantifying prosthetic socket fitment, a method for assessing the 5DoF rotations and translations of the socket-limb interface was developed. Joint centre estimations and ghost marker tracking were used to achieve the 5DoF measurements, which surpassed previous methodologies only capable of measuring 4DoF. |
| Exploitation Route | It is hoped that this work will form the basis of a new paridigm in digital prostehic socket fabrication, building on lessons learnt and taking forward the underlying ethos of reducing cost, labour and waste of current practice. |
| Sectors | Healthcare |