US 12,415,071 B2
Epidural stimulation and spinal structure locating techniques
Peter J. Grahn, Rochester, MN (US); Igor A. Lavrov, Rochester, MN (US); Kristin D. Zhao, Rochester, MN (US); Kendall H. Lee, Rochester, MN (US); Megan L. Gill, Rochester, MN (US); and Riazul Islam, Rochester, MN (US)
Assigned to Mayo Foundation for Medical Education and Research, Rochester, MN (US)
Appl. No. 17/626,319
Filed by Mayo Foundation for Medical Education and Research, Rochester, MN (US)
PCT Filed Jul. 29, 2020, PCT No. PCT/US2020/044003
§ 371(c)(1), (2) Date Jan. 11, 2022,
PCT Pub. No. WO2021/021886, PCT Pub. Date Feb. 4, 2021.
Claims priority of provisional application 62/880,050, filed on Jul. 29, 2019.
Prior Publication US 2022/0241587 A1, Aug. 4, 2022
Int. Cl. A61N 1/36 (2006.01); A61N 1/05 (2006.01)
CPC A61N 1/36003 (2013.01) [A61N 1/0551 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An electrode array for epidural stimulation comprising:
an elongated substrate having a central longitudinal axis;
a first group of inner electrodes arranged on the substrate along a first serpentine path that undulates laterally back and forth across a first inner longitudinal axis from a first end of the substrate to a second end of the substrate thereby conforming the first group of inner electrodes to the locations of a first set of spinal cord rootlets when the electrode array is positioned over the spinal cord, the first inner longitudinal axis parallel to the central longitudinal axis; and
a second group of inner electrodes arranged on the substrate along a second serpentine path that undulates laterally back and forth across a second inner longitudinal axis from the first end of the substrate to the second end of the substrate thereby conforming the second group of inner electrodes to the locations of a second set of spinal cord rootlets when the electrode array is positioned over the spinal cord, the second inner longitudinal axis parallel to the central longitudinal axis.