Working Paper Article Version 2 This version is not peer-reviewed

Visual Biofeedback Tool for Quantitative Pressure Monitoring in Lower-Limb Prosthetic Sockets

Version 1 : Received: 4 October 2021 / Approved: 6 October 2021 / Online: 6 October 2021 (10:22:37 CEST)
Version 2 : Received: 6 October 2021 / Approved: 6 October 2021 / Online: 6 October 2021 (12:58:45 CEST)

A peer-reviewed article of this Preprint also exists.

Turner, S.; Jain, S.; Patel, A.; Hopkins, M.O.; McGregor, A.H. A Visual Feedback Tool for Quantitative Pressure Monitoring in Lower-Limb Prosthetic Sockets. Prosthesis 2021, 3, 394-405. Turner, S.; Jain, S.; Patel, A.; Hopkins, M.O.; McGregor, A.H. A Visual Feedback Tool for Quantitative Pressure Monitoring in Lower-Limb Prosthetic Sockets. Prosthesis 2021, 3, 394-405.

Journal reference: Prosthesis 2021, 3, 35
DOI: 10.3390/prosthesis3040035

Abstract

Obtaining a good socket fit is an iterative process dependent on the skill and experience of the prosthetist creating it, and requiring individualisation based on the size and shape. There is no standard measurement system used to aid prosthetic socket creation, despite the severe impacts on physical health and quality of life if one is ill-fitting. Pressure sensors embedded in a prosthetic socket were used to collect data at the socket-residuum interface. To choose an interpolation method, a 2D grid was used, with previously collected walking test pressure data, to simplify the sensor array with a border for extrapolation. Four multivariable interpolation methods were evaluated to create a colour map of the pressure data. Radial Basis Function interpolation was chosen as it produced a clear image with a graduated interpolation between data points and was used to create a colour map across the surface of a 3D prosthetic socket model. For the model to be accessible to clinical audiences, a desktop application was created using PyQt to view the model. The created application allowed for connection to the sensors via Bluetooth, with the pressure data updating the colour map on the 3D model in real-time. The created application shows the potential for a clinical product, however further development informed by feedback from rehabilitation clinicians and prosthesis users is required

Keywords

prosthetics; prosthetic socket; prosthetic socket fitting; biofeedback; rehabilitation; amputation

Subject

ENGINEERING, Biomedical & Chemical Engineering

Comments (1)

Comment 1
Received: 6 October 2021
Commenter: Shruti Turner
Commenter's Conflict of Interests: Author
Comment: Updated document, to remove Prosthesis template wording in Discussion and Conclusion.
+ Respond to this comment

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 1
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.