%0 Journal Article
%T Analysis of induced electrical currents from magnetic field coupling inside implantable neurostimulator leads
%A Oxana S Pantchenko
%A Seth J Seidman
%A Joshua W Guag
%J BioMedical Engineering OnLine
%D 2011
%I BioMed Central
%R 10.1186/1475-925x-10-94
%X To systematically address the concerns posed by EMI, we developed a test platform to assess the interference from coupled magnetic fields on implantable neurostimulator systems. To measure interference, we recorded the output of one implantable neurostimulator, programmed for best therapy threshold settings, when in close proximity to an operating low frequency RFID emitter. The output contained electrical potentials from the neurostimulator system and those induced by EMI from the RFID emitter. We also recorded the output of the same neurostimulator system programmed for best therapy threshold settings without RFID interference. Using the Spatially Extended Nonlinear Node (SENN) model, we compared threshold factors of spinal cord fiber excitation for both recorded outputs.The electric current induced by low frequency RFID emitter was not significant to have a noticeable effect on electrical stimulation.We demonstrated a method for analyzing effects of coupled magnetic field interference on implantable neurostimulator system and its electrodes which could be used by device manufacturers during the design and testing phases of the development process.Radio frequency identification (RFID) readers are being used for tracking people, animals, products and goods. Some of the advantages of this technology include proximity of identification and robust ability to store information. RFID readers can identify tags within meters away. This technology works by emitting and receiving radio frequency electromagnetic energy. Since RFID technology has gained popularity in many industries, an average person could get exposed to the emitted fields from RFID readers when using public transportation, shopping at a grocery store, picking up a package at a postal service and driving through a toll booth [1,2].The United States Food and Drug Administration (FDA) is encouraging use of a state-of-the-art technology, such as RFID, to allow manufacturers and distributors to precisely track d
%U http://www.biomedical-engineering-online.com/content/10/1/94