Design of a magnetic actuation system for a microbiota-collection ingestible capsule
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Document typeConference report
Defense date2021
Rights accessRestricted access - publisher's policy
(embargoed until 2023-06-01)
Abstract
Minimally invasive wireless devices, allowing the sampling of gut’s bacteria, are needed for a longitudinal understanding of the role of the microbiota on the human health. Herein, we present a novel magnetic actuation system fitting inside a 11.5 x 30.5 mm wireless ingestible capsule. Lacking any electronic components, the capsule robot is designed for the collection of microbiota’s samples through mechanical brushing. Wireless activation and in situ sampling are enabled by an external permanent magnetic source. This component, when approaching the capsule, progressively allows: (1) the adhesion of the device to the mucosa, (2) the exposure of the brushes, and (3) the sampling by multiple rotations. Numerical and analytical models were developed for dimensioning the system, and were validated by benchtop experiments.
CitationFinocchiaro, M. [et al.]. Design of a magnetic actuation system for a microbiota-collection ingestible capsule. A: IEEE International Conference on Robotics and Automation. "2021 International Conference on Robotics and Automation (ICRA 2021): Xi'an, China: May 30 - June 4, 2021". 2021, p. 1-7.
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