Stacked Spirals for Biosensor Telemetry

Laskovski, Anthony N.; Yuce, Mehmet Rasit; Dissanayake, Tharaka

doi:10.1109/jsen.2010.2091123

Cited by 34 publications

(17 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Previous works have illustrated that human tissue is very good at conducting signals below 10 MHz [4]. At higher frequencies, the conductivity of the human body increases dramatically, which means that more energy is absorbed [5]. Additionally, reported in-vivo measurements have shown that the relative permittivity of human skin varies between 1000 at 1 MHz and down to 250 when the frequency increases to 10 MHz [6].…”

Section: Capacitive Couplingmentioning

confidence: 99%

Design of a Miniaturized Wireless Blood Pressure Sensing Interface Using Capacitive Coupling

Aldaoud

Laurenson

Rivet

et al. 2015

IEEE/ASME Trans. Mechatron.

View full text Add to dashboard Cite

Abstract-This paper presents the implementation of a miniaturized wireless blood pressure sensor interface. The system uses capacitive coupling in order to transmit the data, as well as wireless inductive powering. Designed for a bit length of 6.4 μs, the average power consumption of the device has been measured to be 20.5 μW and 2.85 mW in air and phantom material, respectively. The miniaturized sensor interface circuit consists of two plates with a diameter of 2.5 cm, which are connected by means of a thin wire; the device's maximum thickness is 5 mm.Index Terms-Capacitive coupling, inductive powering, wireless implantable sensor interface.

show abstract

Section: Capacitive Couplingmentioning

confidence: 99%

Design of a Miniaturized Wireless Blood Pressure Sensing Interface Using Capacitive Coupling

Aldaoud

Laurenson

Rivet

et al. 2015

IEEE/ASME Trans. Mechatron.

View full text Add to dashboard Cite

show abstract

“…Generally speaking, two kinds of planar coils have been designed and documented in several researches. The first type is the printed spiral coils (PSC), which may be further broken down into either rigid or flexible types, and such a type is applicable to those cases with requirements of low power, high frequency and strict size constrain (intraocular or intracranial space) [6,7]. One example of a flexible PSC fabricated with a liquid metal alloy encased in a biocompatible elastomeric substrate is the retinal prosthesis system [8].…”

Section: Introductionmentioning

confidence: 99%

Improvement of the Coupling Factor of Litz-Wire Coil Pair With Ferrite Substrate for Transcutaneous Energy Transfer System

Ke¹,

Yan²,

Yan³

et al. 2014

PIER M

View full text Add to dashboard Cite

Abstract-This paper presents an optimized design of Litz-wire coil pair with ferrite substrates based on a set of analytical expressions and a 2-D finite-element analysis (FEA) in a way that the coupling coefficient is maximized. An investigation is made on key structure parameters of coils (e.g., structure of Litz-wire, number of turns, and number of layers) to determine their influence on self-inductance and mutual inductance respectively. The influence of ferrite substrate (e.g., relative permeability and thickness) is also considered. Different types of fabricated coils are used to verify all analytical expressions and optimization methods, and it is found that the theoretical predictions and simulations are in agreement with the measured results.

show abstract

“…This can be obtained both by directly providing power to the implantable device or by using rechargeable batteries [6][7][8][9][10][11][12]. Introduced by Tesla over a hundred years ago [13], the basic idea of Wireless Power Transmission (WPT) is to wirelessly transmit power without any physical support.…”

Section: Introductionmentioning

confidence: 99%

“…As a consequence, the efficiency of the wireless link is strongly affected by the presence of human tissues. Accordingly, considering that loss due to the presence of human tissues increases with frequency, many near field systems that have been proposed in the literature ( [6,[9][10][11][12]20]) operate at frequencies below a few tens of MHz.…”

Section: Introductionmentioning

confidence: 99%

Experimental Characterization of a 434 MHZ Wireless Energy Link for Medical Applications

Monti

Tarricone²,

Trane³

2012

PIER C

View full text Add to dashboard Cite

Abstract-This paper presents an experimental study of the performance of a wireless resonant energy link for implantable biomedical devices. More specifically, the proposed system consists of two planar resonators: a primary resonator that is connected to a power source and operates outside the body, and a secondary resonator that is connected to the implanted device and operates inside the body. Each resonator is a planar spiral resonator; the wireless power transmission is obtained by exploiting the magnetic coupling between the two resonators when they are operating at small distances. A prototype working in the ISM band centered at 434 MHz has been developed and analyzed. Reported results confirm that the proposed system is a viable solution for wirelessly providing implantable devices with the power necessary for operation.

show abstract

Stacked Spirals for Biosensor Telemetry

Cited by 34 publications

References 21 publications

Design of a Miniaturized Wireless Blood Pressure Sensing Interface Using Capacitive Coupling

Design of a Miniaturized Wireless Blood Pressure Sensing Interface Using Capacitive Coupling

Improvement of the Coupling Factor of Litz-Wire Coil Pair With Ferrite Substrate for Transcutaneous Energy Transfer System

Experimental Characterization of a 434 MHZ Wireless Energy Link for Medical Applications

Contact Info

Product

Resources

About