Transcutaneous energy transmitter to supply power to ventricular assist devices

• Grant number: 12/06254-1
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• Start date: May 15, 2012
• End date: November 14, 2012
• Field of knowledge: Engineering - Electrical Engineering - Electrical, Magnetic and Electronic Circuits
• Principal Investigator: Luiz Lebensztajn
• Grantee: Daniela Wolter Ferreira Touma
• Supervisor: Laurent Krähenbühl
• Host Institution: Escola Politécnica (EP). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Institution abroad: Ecole Centrale de Lyon, France
• Associated to the scholarship: 11/18341-3 - Project of a transcutaneous energy transmitter to supply power to ventricular auxiliary device, BP.DR

Abstract

This project studies a Transcutaneous Energy Transmitter (TET) which uses electromagnetic fields to transfer power from outside the body to an artificial organ in the body. It works like a high frequency transformer whereas the skin is part of the magnetic coupling between the primary (external coil) and secondary (internal coil). Thus, the external coil (transmitter) is excited by an oscillation circuit that transforms the continuous voltage to high frequency alternated voltage and transfers energy to a secondary internal (receiver) containing a coil associated with a rectifier circuit followed by amplifiers and regulators to supply power to the artificial organ and an internal rechargeable battery. In this work, the study of electronic converters associated to the TET is the primary work, since the correct design of those devices will highly affect the TETs overall performance. Simulations of other coil structures (with different types of ferrite) may also be considered. Eventually, a final design and construction of new coils and adaptation of the electronics may be coordinated with an external supplier for fabrication. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

FERREIRA, DANIELA W.; SABARIEGO, RUTH V.; LEBENSZTAJN, LUIZ; KRAEHENBUEHL, LAURENT; MOREL, FLORENT; VOLLAIRE, CHRISTIAN. Homogenization Methods in Simulations of Transcutaneous Energy Transmitters. IEEE Transactions on Magnetics, v. 50, n. 2, FEB 2014. (12/06254-1, 11/18341-3)

FERREIRA, DANIELA W.; LEBENSZTAJN, LUIZ; KRAEHENBUEHL, LAURENT; MOREL, FLORENT; VOLLAIRE, CHRISTIAN. A Design Proposal for Optimal Transcutaneous Energy Transmitters. IEEE Transactions on Magnetics, v. 50, n. 2, FEB 2014. (12/06254-1, 11/18341-3)