Microelectronics Engineering Group

Microelectronics Engineering Group

Electronics Technology, Systems and Automation Engineering Department University of Cantabria
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Title:Energy-Efficient Implantable Transmitter for Restenosis Monitoring with Intelligent-Stents
Type:International Conference
Where:37th Annual International Conference of IEEE Engineering in Medicine and Biology Society (EMBC 2015)
Authors: David Rivas
Jose Angel Miguel
Yolanda Lechuga
Miguel Angel Allende
Mar Martínez
R&D Lines: Test methods of digital and mixed integrated circuits
Projects: Extensión de la actividad útil de los stent cardiovasculares inteligentes...
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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.
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