title: A power and data link for a wireless-implanted neural recording system.
abstract: A wireless cortical neural recording system with a miniature-implanted package is needed in a variety of neuroscience and biomedical applications. Toward that end, we have developed a transcutaneous two-way communication and power system for wireless neural recording. Wireless powering and forward data transmission (into the body) at 1.25 Mbps is achieved using a frequency-shift keying modulated class E converter. The reverse telemetry (out of the body) carrier frequency is generated using an integer-N phase-locked loop, providing the necessary wideband data link to support simultaneous reverse telemetry from multiple implanted devices on separate channels. Each channel is designed to support reverse telemetry with a data rate in excess of 3 Mbps, which is sufficient for our goal of streaming 16 channels of raw neural data. We plan to incorporate this implantable power and telemetry system in a 1-cm diameter single-site cortical neural recording implant.
authors.affiliation: Illinois Institute of Technology, Chicago, IL 60616, USA. rushale@iit.edu
authors.forename: Alexander D
authors.initials: AD
authors.lastname: Rush
authors.forename: Philip R
authors.initials: PR
authors.lastname: Troyk
mesh_terms: D000328:Adult; D000818:Animals; D003943:Diagnostic Techniques, Neurological / Q000295:instrumentation; D004567:Electrodes, Implanted; D004582:Electronics, Medical / Q000295:instrumentation*; D004867:Equipment Design; D006801:Humans; D008297:Male; D009462:Neurology / Q000295:instrumentation*; D013686:Telemetry / Q000295:instrumentation*; D059015:Wireless Technology / Q000295:instrumentation*