Wireless NIRS
Pediatric Platform

Querrey Simpson Institute for Bioelectronics · Northwestern University
Bioelectronics Wearables NIRS fNIRSPediatricLow-PowerBLEPCB Design
25×30mm Device Footprint
~7g Total Device Mass
740/850nm Dual-Wavelength LEDs
13.56MHz NFC Wireless Charging

Overview

Traditional near-infrared spectroscopy (NIRS) systems used in neonatal and pediatric care are bulky, wired, and impractical for the smallest patients. This project presents a wireless, miniaturized NIRS wearable for continuous tissue oxygen saturation (StO₂) monitoring — developed at the Querrey Simpson Institute for Bioelectronics (Prof. John A. Rogers, Northwestern University) and validated in collaboration with Lurie Children's Hospital.

The device fits on a neonatal forehead, transmits data wirelessly via Bluetooth, and charges over NFC — removing every wire that has historically restricted NIRS to the clinic. It is designed for both intensive-care and take-home physiological monitoring in pediatric patients.

Device on forearm
Wearable NIRS device placed on the inner forearm
Flexible PCB
Flexible two-section PCB — head (9 mm thick) and tail (3 mm)
Full technical details will be released upon publication.
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