An in-vitro system for closed loop neuromodulation of peripheral nerves

Mafalda Ribeiro, Leen Jabban, Felipe Rettore Andris, Thomas Gomes Norgaard Dos Santos Nielsen, Paulo R F Rocha, Benjamin Metcalfe

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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Abstract

Current neuromodulation research relies heavily on in-vivo animal experiments for developing novel devices and paradigms, which can be costly, time-consuming, and ethically contentious. As an alternative to this, in-vitro systems are being developed for examining explanted tissue in a controlled environment. However, these systems are typically tailored for cellular studies. Thus, this paper describes the development of an in-vitro system for electrically recording and stimulating large animal nerves. This is demonstrated experimentally using explanted pig ulnar nerves, which show evoked compound action potentials (eCAPs) when stimulated. These eCAPs were examined both in the time and velocity domain at a baseline temperature of 20° C, and at temperatures increasing up to those seen in-vivo (37°C). The results highlight that as the temperature is increased within the in-vitro system, faster conduction velocities (CVs) similar to those present in-vivo can be observed. To our knowledge, this is the first time an in-vitro peripheral nerve system has been validated against in-vivo data, which is crucial for promoting more widespread adoption of such systems for the optimisation of neural interfaces.

Original languageEnglish
Title of host publication2022 44th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)
Number of pages4
Volume2022
PublisherIEEE
Publication dateJul 2022
Pages2361-2364
ISBN (Print)978-1-7281-2783-5
ISBN (Electronic)978-1-7281-2782-8
DOIs
Publication statusPublished - Jul 2022
Event44th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC) - Glasgow, United Kingdom
Duration: 11 Jul 202215 Jul 2022
https://embc.embs.org/2022/

Conference

Conference44th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)
Country/TerritoryUnited Kingdom
CityGlasgow
Period11/07/202215/07/2022
Internet address
SeriesI E E E Engineering in Medicine and Biology Society. Conference Proceedings
ISSN2375-7477

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