ArticleIEEE transactions on circuits and systems. II, Express briefs : a publication of the IEEE Circuits and Systems Society2019
Gastric Seed: Towards Distributed Ultrasonically Interrogated Millimeter-Sized Implants for Large-Scale Gastric Electrical-Wave Recording.
Article in IEEE transactions on circuits and systems. II, Express briefs : a publication of the IEEE Circuits and Systems Society, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 26 citations in OpenAlex.
- Gastric slow-wave morphology in health and disease.Digestive diseases and sciences · 2026Article
- Enhancing Ultrasound Power Transfer: Efficiency, Acoustics, and Future Directions.Advanced materials (Deerfield Beach, Fla.) · 2025Review
- A Study on Ultrasonic Wireless Power Transfer With Phased Array for Biomedical Implants.IEEE transactions on biomedical circuits and systems · 2023Article
- Design and Optimization of Ultrasonic Links With Phased Arrays for Wireless Power Transmission to Biomedical Implants.IEEE transactions on biomedical circuits and systems · 2022Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
Abstract
This paper presents the concept of Gastric Seed, which is an ultrasonically interrogated millimeter-sized implant for gastric electrical-wave (also known as slow waves, SWs) recording. A network of Gastric Seeds can be endoscopically implanted within the stomach submucosal space for large-scale SW recording. This paper also summarizes our recent effort towards Gastric Seed development including ultrasonic self-regulated power management and addressable ultrasonic pulse-based data transfer. The proposed power management in the form of a voltage doubler only requires a single off-chip capacitor for simultaneous rectification, regulation and over-voltage protection (OVP) by utilizing ultrasonic transducer's internal capacitance and reverse current. For data transfer, sharp ultrasonic pulses are transmitted to reduce the implant's power consumption. A proof-of-concept addressable chip was fabricated in a 0.35-μm standard CMOS process. Utilizing two pairs of millimeter-sized stacked power/data ultrasonic transducers spaced by 3.75 cm in a water tank, the chip achieved measured regulated voltage of 3 V and data rate of 75 kbps with the data transmitter energy consumption of 440 pJ/bit.
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Registered trials
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