Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · 2024
An Implantable Ciliary Muscle LFP Recording and Transmitting System.
СтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Kaltenstadler Sebastian, Sigdel Bishesh, Schumayer Sven, Steinhoff Raphael, Straser Torsten, Rothermel Albrecht
Аннотация
In this work, we present a sclera-attachable eye implant to measure ciliary muscle local field potentials (LFPs) as a demonstrator for a preclinical study. The recorded values can be plotted and filtered in real-time. It records with a single differential channel with sampling rates of up to 250 Hz and offers a programmable gain amplifier. We show the measurement quality with in vivo measurements. The system is powered by a CR1025 coin cell battery and different measures are presented to improve measurement quality and run-time. The impact of battery non-idealities is investigated. The implant measures 18x12 mm with an actual area of 168 mm2 and consumes up to 375 μA in ACTIVE mode with a total measurement run-time of up to 80 hours. The whole system, including the battery, is implantable into the orbital cavity and a standby time of 6 months is obtained.