Wireless Telemetry of Stainless-Steel-Based Smart Antenna Stent Using a Transient Resonance Method

Daniel S. Brox; Xing Chen; Shahriar Mirabbasi; Kenichi Takahata

doi:10.1109/LAWP.2015.2471955

Wireless Telemetry of Stainless-Steel-Based Smart Antenna Stent Using a Transient Resonance Method

Daniel S. Brox, Xing Chen, Shahriar Mirabbasi, Kenichi Takahata

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

A radio-frequency (RF) interrogation method for sensor-integrated "smart" stent implants is reported. This device, formed with a 2-cm-long inductive antenna stent and a micro capacitive pressure sensor, both based on a medical-grade stainless steel, serves as a wireless resonant pressure sensor designed to detect changes in local blood pressure for early detection of post-stenting complications. Wireless telemetry of the devices deployed in vascular model and graft is demonstrated by reading the decay of resonance in the stent excited with pulsed RF fields using two-and single-antenna setups at source powers of 4-20 dBm, showing the read ranges of up to 2.75 cm that are 2 ×-3 × larger than those measured with the conventional impedance-phase method. The devices immersed in saline are also successfully interrogated. The obtained results suggest that the proposed technique is a promising alternative path to wireless monitoring of the carotid artery through implanted smart stents.

Original language	English (US)
Article number	7219394
Pages (from-to)	754-757
Number of pages	4
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	15
DOIs	https://doi.org/10.1109/LAWP.2015.2471955
State	Published - 2016
Externally published	Yes

Keywords

Antennas
Wireless telemetry
microelectromechanical systems
stents
transient resonance

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/LAWP.2015.2471955

Cite this

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title = "Wireless Telemetry of Stainless-Steel-Based Smart Antenna Stent Using a Transient Resonance Method",

abstract = "A radio-frequency (RF) interrogation method for sensor-integrated {"}smart{"} stent implants is reported. This device, formed with a 2-cm-long inductive antenna stent and a micro capacitive pressure sensor, both based on a medical-grade stainless steel, serves as a wireless resonant pressure sensor designed to detect changes in local blood pressure for early detection of post-stenting complications. Wireless telemetry of the devices deployed in vascular model and graft is demonstrated by reading the decay of resonance in the stent excited with pulsed RF fields using two-and single-antenna setups at source powers of 4-20 dBm, showing the read ranges of up to 2.75 cm that are 2 ×-3 × larger than those measured with the conventional impedance-phase method. The devices immersed in saline are also successfully interrogated. The obtained results suggest that the proposed technique is a promising alternative path to wireless monitoring of the carotid artery through implanted smart stents.",

keywords = "Antennas, Wireless telemetry, microelectromechanical systems, stents, transient resonance",

author = "Brox, {Daniel S.} and Xing Chen and Shahriar Mirabbasi and Kenichi Takahata",

note = "Publisher Copyright: {\textcopyright} 2016 IEEE.",

year = "2016",

doi = "10.1109/LAWP.2015.2471955",

language = "English (US)",

volume = "15",

pages = "754--757",

journal = "IEEE Antennas and Wireless Propagation Letters",

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publisher = "Institute of Electrical and Electronics Engineers Inc.",

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T1 - Wireless Telemetry of Stainless-Steel-Based Smart Antenna Stent Using a Transient Resonance Method

AU - Brox, Daniel S.

AU - Chen, Xing

AU - Mirabbasi, Shahriar

AU - Takahata, Kenichi

PY - 2016

Y1 - 2016

N2 - A radio-frequency (RF) interrogation method for sensor-integrated "smart" stent implants is reported. This device, formed with a 2-cm-long inductive antenna stent and a micro capacitive pressure sensor, both based on a medical-grade stainless steel, serves as a wireless resonant pressure sensor designed to detect changes in local blood pressure for early detection of post-stenting complications. Wireless telemetry of the devices deployed in vascular model and graft is demonstrated by reading the decay of resonance in the stent excited with pulsed RF fields using two-and single-antenna setups at source powers of 4-20 dBm, showing the read ranges of up to 2.75 cm that are 2 ×-3 × larger than those measured with the conventional impedance-phase method. The devices immersed in saline are also successfully interrogated. The obtained results suggest that the proposed technique is a promising alternative path to wireless monitoring of the carotid artery through implanted smart stents.

AB - A radio-frequency (RF) interrogation method for sensor-integrated "smart" stent implants is reported. This device, formed with a 2-cm-long inductive antenna stent and a micro capacitive pressure sensor, both based on a medical-grade stainless steel, serves as a wireless resonant pressure sensor designed to detect changes in local blood pressure for early detection of post-stenting complications. Wireless telemetry of the devices deployed in vascular model and graft is demonstrated by reading the decay of resonance in the stent excited with pulsed RF fields using two-and single-antenna setups at source powers of 4-20 dBm, showing the read ranges of up to 2.75 cm that are 2 ×-3 × larger than those measured with the conventional impedance-phase method. The devices immersed in saline are also successfully interrogated. The obtained results suggest that the proposed technique is a promising alternative path to wireless monitoring of the carotid artery through implanted smart stents.

KW - Antennas

KW - Wireless telemetry

KW - microelectromechanical systems

KW - stents

KW - transient resonance

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Wireless Telemetry of Stainless-Steel-Based Smart Antenna Stent Using a Transient Resonance Method

Abstract

Keywords

ASJC Scopus subject areas

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