Wireless Power Transfer to Millimeter-Sized Gastrointestinal Electronics Validated in a Swine Model

  title={Wireless Power Transfer to Millimeter-Sized Gastrointestinal Electronics Validated in a Swine Model},
  author={Abubakar Abid and Jonathan M. O'Brien and Taylor Bensel and Cody Cleveland and Lucas Booth and Brian Smith and Robert S. Langer and Giovanni Traverso},
  journal={Scientific Reports},
Electronic devices placed in the gastrointestinal (GI) tract for prolonged periods have the potential to transform clinical evaluation and treatment. [...] Key Method Using simulations and ex vivo measurements, we designed mid-field antennas capable of operating efficiently in tissue at 1.2 GHz. These antennas were then characterized in vivo in five anesthetized pigs, by placing one antenna outside the body, and the other antenna inside the body endoscopically, at the esophagus, stomach, and colon. Across the…Expand
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  • J. Ho, A. J. Yeh, +5 authors A. Poon
  • Engineering, Medicine
  • Proceedings of the National Academy of Sciences
  • 2014
A wireless powering method is reported that overcomes the challenge of energy transfer beyond superficial depths in tissue by inducing spatially focused and adaptive electromagnetic energy transport via propagating modes in tissue and is used to power a tiny electrostimulator that is orders of magnitude smaller than conventional pacemakers. Expand
The UHF Band In-body Antennas for Wireless Capsule Endoscopy
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This paper surveys the analysis of near-field power transfer and associated strategies to optimize efficiency, and reviews analytical models that show that significantly higher efficiencies can be obtained in the electromagnetic midfield. Expand
A Wideband Spiral Antenna for Ingestible Capsule Endoscope Systems: Experimental Results in a Human Phantom and a Pig
  • S. Lee, Jaebok Lee, +4 authors S. Nam
  • Materials Science, Medicine
  • IEEE Transactions on Biomedical Engineering
  • 2011
The design of a wideband spiral antenna for ingestible capsule endoscope systems is presented and a comparison between the experimental results in a human phantom and a pig under general anesthesia is compared. Expand
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A mm-Sized Wirelessly Powered and Remotely Controlled Locomotive Implant
Two scalable low-power propulsion methods are described that achieve roughly an order of magnitude better performance than existing methods in terms of thrust conversion efficiency. Expand
Power transfer for a flexible gastric stimulator
  • Souvik Dubey, J. Chiao
  • Materials Science
  • 2016 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS)
  • 2016
Gastroparesis is a disorder reported to be prevalent among 30-50% of diabetics. Gastric electrical stimulation (GES) to the stomach has been used to treat the symptoms of gastroparesis. It usuallyExpand
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In vivo wireless biomedical microsystems fueled by the continued scaling of electronic components and the development of new micro sensors and micropackaging technologies is rapidly changing theExpand
Wireless power transfer using weakly coupled magnetostatic resonators
Wireless power transfer can create the illusion of portable devices with infinite power supplies and enable applications that are currently unimaginable because of power constraints. MagneticExpand
Wireless energy transfer by resonant inductive coupling
This thesis investigates wireless energy transfer systems based on resonant inductive coupling with applications such as charging electric vehicles. Wireless energy transfer can be used to power orExpand