Inductively Powered Pressure Sensing System Integrating a Far-Field Data Transmitter for Monitoring of Intracranial Pressure

Monitoring of intracranial pressure (ICP) provides a life-saving diagnostic tool. We present a battery-free pressure sensing system for minimally invasive ICP monitoring. It comprises a cranially concealed wireless pressure sensor and on- and off-body external units. The sensor is based on a piezore...

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Published in:IEEE sensors journal 2017-04, Vol.17 (7), p.2191-2197
Main Authors: Khan, M. Waqas A., Sydanheimo, Lauri, Ukkonen, Leena, Bjorninen, Toni
Format: Article
Language:English
Subjects:
Biological effects
Computer simulation
Diagnostic software
Diagnostic systems
Dipole antennas
Environmental monitoring
External pressure
far-field data transmitter
inductive power link
Intracranial pressure
Intracranial pressure (ICP)
Iterative closest point algorithm
Monitoring
piezoresistive pressure sensor
Sensors
Wireless communication
Wireless sensor networks
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cited_by cdi_FETCH-LOGICAL-c293t-5460be8ed2de061a29299d42daca6a480d6e8bd9efdc3ebc7978f0c01884e1e13
cites cdi_FETCH-LOGICAL-c293t-5460be8ed2de061a29299d42daca6a480d6e8bd9efdc3ebc7978f0c01884e1e13
container_end_page 2197
container_issue 7
container_start_page 2191
container_title IEEE sensors journal
container_volume 17
creator Khan, M. Waqas A.
Sydanheimo, Lauri
Ukkonen, Leena
Bjorninen, Toni
description Monitoring of intracranial pressure (ICP) provides a life-saving diagnostic tool. We present a battery-free pressure sensing system for minimally invasive ICP monitoring. It comprises a cranially concealed wireless pressure sensor and on- and off-body external units. The sensor is based on a piezoresistive element and is inductively powered through an on-body unit. It is also equipped with a far-field antenna, which conveys the pressure data to the off-body unit. We present the electromagnetic modeling of the system and report results from experiments carried out in a setting, which mimics the biological operation environment. The simulation and measurement results demonstrate the wireless pressure monitoring at a distance up to one meter over the pressure range from -3 to 33 mmHg and assess the impact of an imperfectly aligned inductive link on the operation of the system.
doi_str_mv 10.1109/JSEN.2017.2661324
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source IEEE Electronic Library (IEL) Journals
subjects Biological effects
Computer simulation
Diagnostic software
Diagnostic systems
Dipole antennas
Environmental monitoring
External pressure
far-field data transmitter
inductive power link
Intracranial pressure
Intracranial pressure (ICP)
Iterative closest point algorithm
Monitoring
piezoresistive pressure sensor
Sensors
Wireless communication
Wireless sensor networks
title Inductively Powered Pressure Sensing System Integrating a Far-Field Data Transmitter for Monitoring of Intracranial Pressure
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