US 12,167,915 B2
Bipolar nerve stimulation/monitoring cuff
Nicholas Poulos, Frontenac, MO (US); and James Cupp, Indiana, PA (US)
Assigned to Retropsoas Technologies, LLC, Frontenac, MO (US)
Filed by Retropsoas Technologies, LLC, Frontenac, MO (US)
Filed on Apr. 30, 2024, as Appl. No. 18/651,145.
Application 18/651,145 is a continuation of application No. PCT/US2024/023898, filed on Apr. 10, 2024.
Claims priority of provisional application 63/496,945, filed on Apr. 18, 2023.
Prior Publication US 2024/0350064 A1, Oct. 24, 2024
Int. Cl. A61B 5/294 (2021.01); A61B 5/251 (2021.01); A61B 5/263 (2021.01)
CPC A61B 5/294 (2021.01) [A61B 5/251 (2021.01); A61B 5/263 (2021.01)] 23 Claims
OG exemplary drawing
 
1. A nerve cuff comprising:
a body having a base and first and second arms extending from opposite sides of the base;
said base and arms being formed from an electrically insulating material; the base and first and second resilient arms defining an inner surface adapted to face a nerve when in use; said arms each comprising a fixed end adjacent said base and a free end remote from said base; said arms and/or base being sized so as to be flexible such that said nerve cuff is moveable between a relaxed position and an open position, wherein in said open position, said arms define a gap between their free ends adapted to fit over a nerve root; said body defining an axis extending through an approximate center of said base and said gap, said body having a radial width measured along an axial plane which passes through said arms and an axial width measured in a plane that is generally perpendicular to said radial width;
an elongate first electrode positioned on and extending along an inner surface of said first arm and an elongate second electrode positioned on and extending along an inner surface of said second arm; said electrodes each comprising an elongate electrically conductive foils; each said foil having a first end, a second end and side edges extending between said first and second ends, said side edges being longer than said ends; said first end of each foil being fastened to said body at a first point proximate said axis and a second end fastened to said body at a second point remote from said first point sufficient for said conductive foils to define an arc of between 120° and 140° and; said foils being secured to said body at only said first and second ends of said foils; said foils being electrically isolated from each other, wherein the inner surface of said arms is sized and shaped to maintain said at electrodes in electrical communication with the nerve root when said nerve cuff is in its closed position.