Wirelessly powered deformable electronic stent for noninvasive electrical stimulation of lower esophageal sphincter.

ABSTRACT: Electrical stimulation is a promising method to modulate gastrointestinal disorders. However, conventional stimulators need invasive implantation and removal surgeries associated with risks of infection and secondary injuries. Here, we report a battery-free and deformable electronic esophageal stent for wireless stimulation of the lower esophageal sphincter in a noninvasive fashion. The stent consists of an elastic receiver antenna infilled with liquid metal (eutectic gallium-indium), a superelastic nitinol stent skeleton, and a stretchable pulse generator that jointly enables 150% axial elongation and 50% radial compression for transoral delivery through the narrow esophagus. The compliant stent adaptive to the dynamic environment of the esophagus can wirelessly harvest energy through dee

SUBMITTER: Zhang C 

PROVIDER: S-EPMC9995080 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature