Electrode with increased stability and method of manufacturing the same

US7937153B2 · kind B2 · utility

Assignee

• Second Sight Medical Products, Inc. · US

Inventors

• Dao Min Zhou · Santa Clarita, US
• Jerry Ok · Santa Clarita, US
• Neil Hamilton Talbot · La Cañada Flintridge, US
• Brian V. Mech · Santa Clarita, US
• James Singleton Little · Arvada, US
• Robert J. Greenberg · Los Angeles, US

Key dates

• Filing date: Jun 19, 2007
• Grant date: May 3, 2011
• Expiry date: Aug 27, 2028

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/36046
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An implantable electrode with increased stability having a clustered structure wherein the surface of the electrode is covered with a material comprising openings which are filled with sticks or posts. An implantable electrode with increased stability wherein the surface is of the electrode comprises mesh grids which are filled with sticks which are filed with a conducting or insulating material. A method of manufacturing an electrode with increased stability, comprising: depositing a metal layer on an base layer; applying photoresist layer on the metal layer; patterning the photoresist layer providing openings; electroplating the openings with metal; removing the photoresist layer leaving spaces; and filling the spaces with polymer. A method of manufacturing an electrode with increased stability, comprising: depositing a metal layer on an base layer; applying a polymer layer on the metal layer; applying photoresist layer on the polymer layer; patterning the photoresist layer providing openings; electroplating the openings with metal; and removing the photoresist layer.