Parylene-based microelectrode array implant for spinal cord stimulation

US8805542B2 · kind B2 · utility

Assignees

• CALIFORNIA INSTITUTE OF TECHNOLOGY · US
• University of Louisville Research Foundation, Inc. · US
• The Regents of the University of California · US

Inventors

• Yu-Chong Tai · Pasadena, US
• Mandheerej S. Nandra · Pasadena, US
• Joel W. Burdick · Pasadena, US
• Damien C. Rodger · South Pasadena, US
• Andy Fong · Los Angeles, US
• Victor Reggie Edgerton · Los Angeles, US
• Roland R. Roy · Culver City, US
• Yury Gerasimenko · Los Angeles, US
• Igor A. Lavrov · Rancho Palos Verdes, US
• Susan J. Harkema · Louisville, US
• Claudia A. Angeli · Louisville, US

Key dates

• Filing date: Jul 19, 2013
• Grant date: Aug 12, 2014
• Expiry date: Jul 19, 2033

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/0558
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An implantable electrode array assembly configured to apply electrical stimulation to the spinal cord. A substantially electrically nonconductive layer of the device has a first portion positionable alongside the spinal cord that includes a plurality of first openings and a second portion that includes a plurality of second openings. Electrodes and traces are positioned inside a peripheral portion of a body portion of the device and alongside the layer. At least one of the first openings is adjacent each of the electrodes to provide a pathway through which the electrode may provide electrical stimulation to the spinal cord. At least one of the second openings is adjacent each of the traces to provide a pathway through which the trace may receive electrical stimulation. At least one trace is connected to each electrode and configured to conduct electrical stimulation received by the trace(s) to the electrode.