Nanodevice Arrays for Peripheral Nerve Fascicle Activation Using Ultrasound Energy-harvesting
| Autor: | Michael Donohoe, Josep Miquel Jornet, Sasitharan Balasubramaniam, Brendan Jennings |
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| Přispěvatelé: | Tampere University, Electronics and Communications Engineering, Research group: Emerging Technologies for Nano-Bio-Info-Cogno |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
business.industry 213 Electronic automation and communications engineering electronics Ultrasound Nanowire Pervasive Communications Services 020206 networking & telecommunications 02 engineering and technology Fascicle 021001 nanoscience & nanotechnology Computer Science Applications Electrode 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering 0210 nano-technology business Nanodevice Ultrasound energy Energy harvesting Biomedical engineering Voltage |
| Popis: | We propose the use of wireless, energy-harvesting, implanted nanodevice arrays with electrodes for selective stimulation of peripheral nerves in the human body. We calculate the input ultrasound energy and harvested power for single fixed-size nanowire-based nanodevices at different tissue depths and compare these with the current and voltage levels required for peripheral neural stimulation. We model the dimensioning of arrays of nanodevices, embedded in biocompatible tissue patches, to meet these neural stimulation requirements. Selectivity of activation of particular nerve bundles requires that the output voltage and current of the array can be varied to increase or decrease penetration into the neural tissue. This variation can be achieved by changing the energised area of the array and/or by decreasing the incident ultrasound power. However, the array must be implanted horizontally relative to the incident ultrasound as any tilting of the nanodevices will reduce the harvested energy. The proposed approach provides a long-term implant solution for nerve stimulation that allows the patient greater freedom of movement than with embedded tethered electrodes. acceptedVersion |
| Databáze: | OpenAIRE |
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