Description:
- Colonoscopy
- Endoscopic procedures
Abstract
USC researchers have developed a novel magnetic localization scheme for capsule endoscopy. The method uses frequency-division multiplexing, allowing for reduced coil size and a smaller excitation current. The device contains a fully integrated wireless receiver implemented in 180nm CMOS and contained in an ingestible pill. In both 2D and 3D localization experiments, the approach accomplishes sub-millimeter tracking resolution with less than 336uW power consumption.
Benefit
- Allows for precise localization of endoscopy capsules
- Non-invasive
- Small coil size
- Low excitation current
Market Application
More than 15 million colonoscopies are performed every year in the U.S., but the invasive nature of the procedure has generated demand for an alternative. In capsule endoscopies, a patient swallows an ingestible capsule that images the digestive tract as it travels by peristalsis. Although existing capsule endoscopy products can capture and transmit images in real-time, the inability to precisely localize the capsule's position limits the diagnosis accuracy.
Publications
Design and Implementation of a Low Power Wireless Frequency-Division Multiplexed Magnetic 3D Localization Scheme With Sub-mm Precision for Capsule Endoscopy Applications. IEEE Solid-State Circuits Letters (2023).
Other
Stage of Development
- Prototype developed
- Tested in experimental simulation