Improved design and in vivo animal tests of bone-guided cochlear implant microsystem with monopolar biphasic multiple stimulation and neural action potential acquisition
Journal
2020 IEEE Asian Solid-State Circuits Conference, A-SSCC 2020
Date Issued
2020
Author(s)
Wang S.-H
Huang Y.-K
Chen C.-Y
Lee C.-F
Yang C.-H
Hung C.-C
Liu C.-H
Ker M.-D
Abstract
In this paper, an improved design of implantable SoC with monopolar biphasic constant current stimulation (CCS), double-electrode multiple stimulation, and the evoked compound action potential (ECAP) acquisition is proposed and fabricated for the bone-guided cochlear implant (BGCI) microsystem. Through the same pair of coils in 13.56 MHz, the implanted SoC is powered wirelessly and the stimulation patterns are sent from the external unit. Electrical measurement has been successfully performed. In vivo animal tests on guinea pigs have shown that the Wave III of electrically evoked auditory brainstem (EABR) response is successfully evoked by the stimulation of the improved BGCI microsystem. ? 2020 IEEE.
Subjects
Cochlear implants; Mammals; Microsystems; System-on-chip; Action potentials; Animal tests; Constant current; Double electrodes; Electrical measurement; Evoked compound action potential; Improved designs; Stimulation pattern; Integrated circuit design
Type
conference paper