MRI-SAFE HIGH IMPEDANCE LEAD SYSTEMS AND RELATED METHODS

摘要

Some embodiments are directed to MRI/RF compatible medical interventional devices. A plurality of spaced apart high impedance circuit segments are configured to have a high impedance at a high range of radiofrequencies and a low impedance at a low range of frequencies. The high impedance circuit segments may comprise co-wound coiled inductors and can reduce, block or inhibit RF transmission along the lead system during exposure to RF associated with a high-field magnet MRI systems, while permitting passage of low frequency physiologic signals, treatments and/or stimuli. The devices can include at least one electrode.