Randall D Nelson

US Patent:

20220362542, Nov 17, 2022

Filed:

Aug 1, 2022

Appl. No.:

17/878854

Inventors:

- Iowa City IA, US
- Charlottesville VA, US
Brian Dalm - Coralville IA, US
Marcel Utz - Charlottesville VA, US
George T. Gillies - Charlottesville VA, US
Steven Scott - Excelsior MN, US
Randall S. Nelson - Pine Springs MN, US
Robert Shurig - Saint Paul MN, US

Assignee:

University of Iowa Research Foundation - Iowa City IA
University of Virginia Patend Foundation - Charlottesville VA

International Classification:

A61N 1/05
A61N 1/36

Abstract:

This invention provides an device for electrical stimulation of the spinal cord. The device has an electrode assembly with a sufficiently thin profile to be implanted between the pial surface of the spinal cord and the dura mater, and secured to the dura. Electrodes on the electrode assembly are directed towards the surface of the spinal cord, and connected through the dura to a signal generator located outside the dura. Following implantation, the subject is treated by transmitting electrical signals from the signal generator through the leads to the electrodes, stimulating the subject's spinal cord.

US Patent:

20200179684, Jun 11, 2020

Filed:

Feb 13, 2020

Appl. No.:

16/790329

Inventors:

- Iowa City IA, US
- Charlottesville VA, US
Brian Dalm - Coralville IA, US
Marcel Utz - Charlottesville VA, US
George T. Gillies - Charlottesville VA, US
Steven Scott - Excelsior MN, US
Randall S. Nelson - Pine Springs MN, US
Robert Shurig - Saint Paul MN, US

Assignee:

Universty of Iowa Research Foundation - Iowa City IA
University of Virginia Patent Foundation - Charlottesville VA

International Classification:

A61N 1/05
A61N 1/36

Abstract:

This invention provides an device for electrical stimulation of the spinal cord. The device has an electrode assembly with a sufficiently thin profile to be implanted between the pial surface of the spinal cord and the dura mater, and secured to the dura. Electrodes on the electrode assembly are directed towards the surface of the spinal cord, and connected through the dura to a signal generator located outside the dura. Following implantation, the subject is treated by transmitting electrical signals from the signal generator through the leads to the electrodes, stimulating the subject's spinal cord.

US Patent:

20170065814, Mar 9, 2017

Filed:

Sep 16, 2016

Appl. No.:

15/267765

Inventors:

- Iowa City IA, US
- Charlottesville VA, US
Brian Dalm - Coralville IA, US
Marcel Utz - Charlottesville VA, US
George T. Gillies - Charlottesville VA, US
Steven Scott - Excelsior MN, US
Randall S. Nelson - Pine Springs MN, US
Robert Shurig - Saint Paul MN, US

International Classification:

A61N 1/05
A61N 1/375
A61N 1/378
A61N 1/36

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.

US Patent:

20150343205, Dec 3, 2015

Filed:

Aug 7, 2015

Appl. No.:

14/821540

Inventors:

- Iowa City IA, US
- Charlottesville VA, US
Brian Dalm - Coralville IA, US
Marcel Utz - Charlottesville VA, US
George T. Gillies - Charlottesville VA, US
Steven Scott - Excelsior MN, US
Randall S. Nelson - Pine Springs MN, US
Robort Shurig - Saint Paul MN, US

International Classification:

A61N 1/05
A61N 1/36

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.

US Patent:

20140128955, May 8, 2014

Filed:

Nov 11, 2011

Appl. No.:

13/885157

Inventors:

Matthew Howard - Iowa City IA, US
Timothy Brennan - Iowa City IA, US
Brian Dalm - Coralville IA, US
Marcel Utz - Charlottesville VA, US
George T. Gillies - Charlottesville VA, US
Steven Scott - Excelsior MN, US
Randall S. Nelson - Pine Springs MN, US
Robert Shurig - Saint Paul MN, US

Assignee:

University of Virginia Patent Foundation - Charlottesville VA
University of Iowa Research Foundation - Iowa City IA

International Classification:

A61N 1/05

US Classification:

607117, 29825

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.