US 11,992,674 B2
Graphene oxide cochlear implant electrode and manufacturing method thereof
Xiaoyun Qian, Nanjing (CN); Shuqi Qi, Hangzhou (CN); Xia Gao, Nanjing (CN); Xiaoan Sun, Hangzhou (CN); and Renjie Chai, Nanjing (CN)
Assigned to ZHEJIANG NUROTRON BIOTECHNOLOGY CO., LTD., Hanhzhou (CN); and NANJING DRUM TOWER HOSPITAL, Nanjing (CN)
Appl. No. 17/616,572
Filed by ZHEJIANG NUROTRON BIOTECHNOLOGY CO., LTD., Zhejiang (CN); and NANJING DRUM TOWER HOSPITAL, Nanjing (CN)
PCT Filed Aug. 23, 2019, PCT No. PCT/CN2019/102226
§ 371(c)(1), (2) Date Dec. 3, 2021,
PCT Pub. No. WO2020/244062, PCT Pub. Date Dec. 10, 2020.
Claims priority of application No. 201910474794.8 (CN), filed on Jun. 3, 2019.
Prior Publication US 2022/0233847 A1, Jul. 28, 2022
Int. Cl. A61N 1/05 (2006.01); A61N 1/36 (2006.01)
CPC A61N 1/0541 (2013.01) [A61N 1/36038 (2017.08)] 6 Claims
OG exemplary drawing
 
1. A graphene oxide cochlear implant electrode, comprising an electrode tip, an electrode carrier, electrode contacts, a first positioning ring, a second positioning ring, a boosting portion, an electrode wire, a loop electrode, a loop electrode wire and a wire array, wherein,
the electrode tip is arranged at a foremost portion of the cochlear implant electrode, the electrode carrier is silica gel grafted with a graphene oxide, the electrode carrier wraps the electrode wire and semi-wraps the electrode contacts connected to the electrode wire one by one, and the electrode carrier is slightly curved as a whole; the first positioning ring, the second positioning ring and the boosting portion are arranged sequentially behind all of the electrode contacts, and are used for insertion depth positioning and implantation assistance during implantation; the electrode wire is connected to the electrode contacts one by one and forms a spiral shape through the first positioning ring, the second positioning ring and the boosting portion, the loop electrode is arranged behind the spiral electrode wire and is ring-shaped; and the loop electrode wire is connected to the loop electrode, the wire array is composed of the electrode wire, and one end of the wire array and one end of the loop electrode wire are exposed out of the electrode carrier.