title: A vestibular prosthesis with highly-isolated parallel multichannel stimulation.
abstract: This paper presents an implantable vestibular stimulation system capable of providing high flexibility independent parallel stimulation to the semicircular canals in the inner ear for restoring three-dimensional sensation of head movements. To minimize channel interaction during parallel stimulation, the system is implemented with a power isolation method for crosstalk reduction. Experimental results demonstrate that, with this method, electrodes for different stimulation channels located in close proximity ( mm) can deliver current pulses simultaneously with minimum inter-channel crosstalk. The design features a memory-based scheme that manages stimulation to the three canals in parallel. A vestibular evoked potential (VEP) recording unit is included for closed-loop adaptive stimulation control. The main components of the prototype vestibular prosthesis are three ASICs, all implemented in a 0.6- μm high-voltage CMOS technology. The measured performance was verified using vestibular electrodes in vitro.
authors: Dai
authors: D
authors: Jiang
authors: Dominik
authors: D
authors: Cirmirakis
authors: Andreas
authors: A
authors: Demosthenous
mesh_terms: D004599:Electric Stimulation Therapy / Q000295:instrumentation*; D004567:Electrodes, Implanted; D006801:Humans; D011474:Prosthesis Design; D012665:Semicircular Canals / Q000502:physiology; D058585:Vestibular Evoked Myogenic Potentials / Q000502:physiology