Parametric Study of a Triboelectric Transducer in Total Knee Replacement Application

Overview

Journal J Intell Mater Syst Struct

Date 2021 May 10

PMID 33967564

Citations 5

Authors

Alwathiqbellah Ibrahim

Geofrey Yamomo

Ryan Willing

Shahrzad Towfighian

Affiliations

Soon will be listed here.

Abstract

Triboelectric energy harvesting is a relatively new technology showing promise for biomedical applications. This study investigates a triboelectric energy transducer for potential applications in total knee replacement (TKR) both as an energy harvester and a sensor. The sensor can be used to monitor loads at the knee joint. The proposed transducer generates an electrical signal that is directly related to the periodic mechanical load from walking. The proportionality between the generated electrical signal and the load transferred to the knee enables triboelectric transducers to be used as self-powered active load sensors. We analyzed the performance of a triboelectric transducer when subjected to simulated gait loading on a joint motion simulator. Two different designs were evaluated, one made of Titanium on Aluminum, (Ti-PDMS-Al), and the other made of Titanium on Titanium, (Ti-PDMS-Ti). The Ti-PDMS-Ti design generates more power than Ti-PDMS-Al and was used to optimize the structural parameters. Our analysis found these optimal parameters for the Ti-PDMS-Ti design: external resistance of 304 Ω, a gap of 550 , and a thickness of the triboelectric layer of 50 . Those parameters were optimized by varying resistance, gap, and the thickness while measuring the power outputs. Using the optimized parameters, the transducer was tested under different axial loads to check the viability of the harvester to act as a self-powered load sensor to estimate the knee loads. The forces transmitted across the knee joint during activities of daily living can be directly measured and used for self-powering, which can lead to improving the total knee implant functions.

Citing Articles

Impact of Structural Compliance of a Six Degree of Freedom Joint Simulator on Virtual Ligament Force Calculation in Total Knee Endoprosthesis Testing.

Kleist E, Henke P, Ruehrmund L, Kebbach M, Bader R, Woernle C Life (Basel). 2024; 14(4).

PMID: 38672801 PMC: 11050787. DOI: 10.3390/life14040531.

Self-Powered Load Sensing Circuitry for Total Knee Replacement.

Jain M, Hossain N, Towfighian S, Willing R, Stanacevic M, Salman E IEEE Sens J. 2022; 21(20):22967-22975.

PMID: 35527810 PMC: 9075162. DOI: 10.1109/jsen.2021.3110241.

Characterization of a packaged triboelectric harvester under simulated gait loading for total knee replacement.

Hossain N, Yamomo G, Willing R, Towfighian S IEEE ASME Trans Mechatron. 2021; 26(6):2967-2976.

PMID: 34924739 PMC: 8682802. DOI: 10.1109/tmech.2021.3049327.

Effect of Dielectric Material and Package Stiffness on the Power Generation in a Packaged Triboelectric Energy Harvesting System for Total Knee Replacement.

Hossain N, Yamomo G, Willing R, Towfighian S J Biomech Eng. 2021; 143(10).

PMID: 34008854 PMC: 8299800. DOI: 10.1115/1.4051220.

A New Method for Acoustic Priority Vehicle Detection Based on a Self-Powering Triboelectric Acoustic Sensor Suitable for Low-Power Wireless Sensor Networks.

Quevy Q, Cornetta G, Touhafi A Sensors (Basel). 2021; 21(1).

PMID: 33383749 PMC: 7796061. DOI: 10.3390/s21010158.

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