Document Type

Patent

Patent Number

US Patent 9,486,621

Patent agency

United States Patent and Trademark Office

Publication Date

11-8-2016

Assignee

University of Iowa Research Foundation (Iowa City, IA, US) ; University of Virginia Patent Foundation (Charlottesville, VA, US)

Application Number

14/821,540

Date Filed

2015-08-07

Total Pages

46 pages

Abstract

A method for treating intractable pain via electrical stimulation of the spinal cord. Remote, non-contact stimulation of a selected region of spinal cord is achieved by placement of a transceiver patch directly on the surface of that region of spinal cord, with said patch optionally being inductively coupled to a transmitter patch of similar size on either the outer or inner wall of the dura surrounding that region of the spinal cord. By inductively exchanging electrical power and signals between said transmitter and transceiver patches, and by carrying out the necessary electronic and stimulus signal distribution functions on the transceiver patch, the targeted dorsal column axons can be stimulated without the unintended stray stimulation of nearby dorsal rootlets. Novel configurations of a pliable surface-sheath and clamp or dentate ligament attachment features which realize undamaging attachment of the patch to the spinal cord are described.

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URL

https://ir.uiowa.edu/patents/673