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.

Date of Patent:
Feb. 21, 2017

Filed:

Dec. 20, 2012
Applicant:

The Johns Hopkins University, Baltimore, MD (US);

Inventors:

Gene Yevgeny Fridman, Baltimore, MD (US);

Charles Coleman Della Santina, Towson, MD (US);

Assignee:

THE JOHNS HOPKINS UNIVERSITY, Baltimore, MD (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61N 1/36 (2006.01); A61B 5/11 (2006.01); A61N 1/32 (2006.01); A61N 1/44 (2006.01); A61N 1/20 (2006.01); A61N 1/30 (2006.01);
U.S. Cl.
CPC ...
A61N 1/325 (2013.01); A61N 1/20 (2013.01); A61N 1/303 (2013.01); A61N 1/32 (2013.01); A61N 1/3605 (2013.01); A61N 1/44 (2013.01);
Abstract

An embodiment in accordance with the present invention provides a device and method to deliver direct ionic current safely to target neural tissue, while also eliminating interruptions in the output of the device that can result from the non-ideal operation of the valves used to control the current flow in the device. The device includes two valve-operated systems that work in tandem. The first and second current producing systems are configured to be used together in order to eliminate the periodic interruptions in current flow. In use, one system drives current through the target tissue, while the other system closes all of the valves first and then opens its valves in sequence. This intermediate step of closing all of the valves prevents unintended current shunts through either system. The device also includes two conductors to direct the flow of direct current into the target tissue.


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