Energy-efficient implantable transmitter for restenosis monitoring with intelligent-stents

David Rivas; Jose A Miguel; Yolanda Lechuga; Miguel A Allende; Mar Martinez

doi:10.1109/EMBC.2015.7319103

Energy-efficient implantable transmitter for restenosis monitoring with intelligent-stents

Annu Int Conf IEEE Eng Med Biol Soc. 2015:2015:3323-6. doi: 10.1109/EMBC.2015.7319103.

Authors

David Rivas, Jose A Miguel, Yolanda Lechuga, Miguel A Allende, Mar Martinez

PMID: 26737003
DOI: 10.1109/EMBC.2015.7319103

Abstract

An analog circuit forming part of an intelligent-stent system is proposed with the aim of converting pressure-related capacitance measurements into a FM signal (around 800 MHz) to be analyzed outside of the patient body. Based on the information obtained from this signal, a reliable restenosis monitoring can be carried out. An energy-saver block controls the oscillator and reduces the power consumption of the whole circuit from 547.1 μW in active state to 152.1 μW in idle state, in order to comply with energy restriction imposed by inductive coupling powering. The design is implemented in TSMC 0.18 μm CMOS technology.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Computer Simulation
Constriction, Pathologic
Coronary Restenosis / diagnosis*
Electric Capacitance
Equipment Design
Humans
Monitoring, Physiologic*
Prostheses and Implants*
Stents*
Thermodynamics