公开(公告)号：US20230010500A1

公开(公告)日：2023-01-12

申请号：US17825605

申请日：2022-05-26

Applicant: Korea University Research and Business Foundation

Inventor： Hyung-Min LEE ,  Kyeongho EOM ,  Han-Sol LEE ,  Minju PARK

IPC: A61N1/36 ,  A61N1/378 ,  A61N1/04 ,  H02J7/34

Abstract: Provided is a switched capacitor-based electrical stimulation device which supplies a direct current (DC) power, detects a charging voltage charged in any one of a plurality of capacitors, controls the DC power supplied to a capacitor module to repeat a charging level and a resting level according to a charging pattern when the charging voltage is lower than a target voltage, and outputs an electric current to electrodes which contact a human body based on an output pattern.

公开(公告)号：US20230181927A1

公开(公告)日：2023-06-15

申请号：US18078471

申请日：2022-12-09

Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

Inventor： Hyung-Min LEE ,  Seong-Woo KIM ,  Kyeongho EOM

IPC: A61N5/06 ,  A61F2/14

CPC classification number: A61N5/0622 ,  A61N5/0601 ,  A61F2/14 ,  A61N2005/0626 ,  A61N2005/0652

Abstract: Disclosed herein is a sub-retinal prosthesis using a multi-photodiode sensing technology. The sub-retinal prosthesis using a multi-photodiode sensing technology includes: a pixel array including a plurality of pixels of which k pixels are set as a unit group; and a digital controller controlling the pixel array to activate one of the k pixels as a stimulation electrode and activate the other k-1 pixels as return electrodes, wherein the unit group includes k photodiodes, a sensing circuit and a current driver, the sensing circuit outputs a stimulation parameter using currents each generated by the k photodiodes according to irradiation of light as an input, and the current driver outputs a stimulation current corresponding to the stimulation parameter.