The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 30, 2016
Filed:
Nov. 04, 2014
Second Sight Medical Products, Inc., San Fernando, CA (US);
Robert J Greenberg, Los Angeles, CA (US);
Matthew J McMahon, Washington, DC (US);
Jordan Matthew Neysmith, Pasadena, CA (US);
James S Little, Arvada, CO (US);
Neil Hamilton Talbot, La Crescenta, CA (US);
Kelly H McClure, Simi Valley, CA (US);
Brian V Mech, Santa Clarita, CA (US);
Second Sight Medical Products, Inc., Sylmar, CA (US);
Abstract
Polymer materials are useful as electrode array bodies for neural stimulation. They are particularly useful for retinal stimulation to create artificial vision, cochlear stimulation to create artificial hearing, and cortical stimulation, and many related purposes. The pressure applied against the retina, or other neural tissue, by an electrode array is critical. Too little pressure causes increased electrical resistance, along with electric field dispersion. Too much pressure may block blood flow. Common flexible circuit fabrication techniques generally require that a flexible circuit electrode array be made flat. Since neural tissue is almost never flat, a flat array will necessarily apply uneven pressure. Further, the edges of a flexible circuit polymer array may be sharp and cut the delicate neural tissue. It is advantageous that the array edges not contact tissue.