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1. (WO2017040973) MICRON-SCALE ULTRASOUND IDENTIFICATION SENSING TAGS

Pub. No.:    WO/2017/040973    International Application No.:    PCT/US2016/050165
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Sat Sep 03 01:59:59 CEST 2016
IPC: A61B 8/00
H04B 11/00
H04R 17/00
Applicants: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
Inventors: SHEPARD, Kenneth
KANG, Hongki
THIMOT, Jordan
SHI, Chen
Title: MICRON-SCALE ULTRASOUND IDENTIFICATION SENSING TAGS
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.