Micron-scale ultrasound identification sensing tags

US10898168B2 · kind B2 · utility

Assignee

• The Trustees of Columbia University in the City of New York · US

Inventors

• Kenneth L. Shepard · Johnstown, US
• Hongki Kang · Buksang-myeon, KR
• Jordan Thimot · New York, US
• Chen Shi · Beijing, CN

Key dates

• Filing date: Mar 5, 2018
• Grant date: Jan 26, 2021
• Expiry date: Mar 5, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10F39/80
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Apparatus and methods for powering micron-scale implantable and injectable integrated circuit (IC) chips for in-vivo sensing and acquisition of various physiological signals are provided. The disclosed subject matter includes the integration of piezoelectric transducers, such as polyvinylidene fluoride (PVDF) or lead zirconate titanate (PZT), onto implantable and injectable IC chips for power transfer and data transmission using ultrasound waves generated from commercial ultrasound imaging equipment.