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:
Jun. 10, 2014
Filed:
Nov. 09, 2009
Claude Jolly, Innsbruck, AT;
Roland Hessler, Innsbruck, AT;
Anandhan Dhanasingh, Herzogenrath, DE;
Jürgen Groll, Niederstotzingen, DE;
Claude Jolly, Innsbruck, AT;
Roland Hessler, Innsbruck, AT;
Anandhan Dhanasingh, Herzogenrath, DE;
Jürgen Groll, Niederstotzingen, DE;
MED-EL Elektromedizinische Geraete GmbH, Innsbruck, AT;
Abstract
A cochlear implant electrode includes an implantable electrode carrier having an outer surface with electrode contacts for electrically stimulating nerve tissue of the inner ear of a patient. A drug lumen is within the electrode carrier and adapted to receive a therapeutic fluid. The drug lumen contains delivery openings to the outer surface of the electrode carrier and a hydrogel matrix disposed between the drug lumen and the one or more delivery openings and adapted to swell in volume when exposed to the therapeutic fluid. The hydrogel matrix is adapted to control diffusion of the therapeutic fluid from the drug lumen through the delivery openings to the outer surface of the electrode carrier.