Related Experiment Video
Updated: Nov 7, 2025

Wireless Telemetry Device Implantation in a Fontan Ovine Model for Continuous and Long-Term Hemodynamic Monitoring
Published on: May 2, 2025
Wireless, Skin-Interfaced Devices for Pediatric Critical Care: Application to Continuous, Noninvasive Blood Pressure
Claire Liu1,2, Jin-Tae Kim1, Sung Soo Kwak1,3
1Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA.
New wireless sensors offer accurate, noninvasive blood pressure (BP) monitoring for pediatric intensive care units (PICUs). This technology provides a safer alternative to invasive arterial lines, improving patient care and mobility.
Area of Science:
- Biomedical Engineering
- Medical Devices
- Pediatric Intensive Care
Background:
- Indwelling arterial lines are the standard for continuous blood pressure monitoring in pediatric intensive care units (PICUs).
- Arterial lines have significant drawbacks, including invasiveness, risk of ischemia, and restricted patient movement.
- A need exists for noninvasive, wireless, and accurate alternatives for continuous blood pressure monitoring in pediatric patients.
Purpose of the Study:
- To evaluate wireless, skin-interfaced devices for continuous, noninvasive blood pressure monitoring in the PICU.
- To optimize device materials and mechanics for reliable use across diverse pediatric patient populations and PICU conditions.
- To validate the accuracy of derived noninvasive blood pressure values against direct arterial line recordings.
Main Methods:
- Development and system-level optimization of wireless, skin-interfaced monitoring devices.
- Testing device compatibility with various pediatric body sizes, skin types, and sterilization methods.
- Systematic data analysis from 23 pediatric patients, comparing device-derived BP with arterial line data.
Main Results:
- Wireless, skin-interfaced devices demonstrated capabilities for continuous physiologic waveform and vital sign monitoring.
- Derived noninvasive blood pressure values were quantitatively validated against direct arterial line recordings.
- The technology showed compatibility with diverse pediatric patient characteristics and PICU sterilization protocols.
Conclusions:
- Wireless, skin-interfaced devices show promise as an accurate and continuous noninvasive blood pressure monitoring solution in the PICU.
- This technology offers a potential improvement over invasive arterial lines, enhancing patient care and mobility.
- Further application in specific PICU scenarios may provide significant clinical utility for blood pressure management.
More Related Videos
14:28Non-Invasive Monitoring of Microvascular Oxygenation and Reactive Hyperemia using Hybrid, Near-Infrared Diffuse Optical Spectroscopy for Critical Care
Published on: May 10, 2024
07:48Noninvasive and Invasive Renal Hypoxia Monitoring in a Porcine Model of Hemorrhagic Shock
Published on: October 28, 2022
Related Concept Videos
Pulse rhythm
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
Equipments Used To Measure Blood Pressure
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
Assessing Blood pressure using a doppler ultrasound
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
Sites for measruring blood pressure
The Brachial Artery: Primary Site for Blood Pressure Measurement
Special considerations while measuring blood pressure
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
Holter Monitor: 24-Hour Monitoring