US 11,896,828 B2
Implantable lead location using ECAP
David A. Dinsmoor, North Oaks, MN (US); and Andrew L Schmeling, Holmen, WI (US)
Assigned to Medtronic, Inc., Minneapolis, MN (US)
Filed by Medtronic, Inc., Minneapolis, MN (US)
Filed on Oct. 30, 2020, as Appl. No. 17/085,621.
Prior Publication US 2022/0134108 A1, May 5, 2022
Int. Cl. A61N 1/00 (2006.01); A61N 1/36 (2006.01); A61B 5/06 (2006.01); A61B 5/00 (2006.01); A61N 1/05 (2006.01)
CPC A61N 1/36062 (2017.08) [A61B 5/065 (2013.01); A61B 5/686 (2013.01); A61N 1/36128 (2013.01); A61N 1/0551 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A system comprising:
stimulation circuitry configured to generate electrical stimulation deliverable via an electrode combination of an electrode array during an implantation placement procedure;
sensing circuitry configured to sense an evoked compound action potential (ECAP) signal; and
processing circuitry configured to:
control the stimulation circuitry to deliver a first control stimulus to the electrode combination of the electrode array positioned at a first potential implant location adjacent to a spinal cord of a patient;
receive, from the sensing circuitry, first information representative of a first ECAP signal sensed in response to the first control stimulus;
control the stimulation circuitry to deliver a second control stimulus to the electrode combination of the electrode array positioned at a second potential implant location different from the first potential implant location and adjacent to the spinal cord of the patient;
receive, from the sensing circuitry, second information representative of a second ECAP signal in response to the second control stimulus;
determine a first latency of the first ECAP signal and a second latency of the second ECAP signal;
determine one of the first latency of the first ECAP signal or the second latency of the second ECAP signal having a lowest latency;
select, according to the lowest latency, one of the first potential implant location associated with the first ECAP signal or the second potential implant location associated with the second ECAP signal as a target position for implantation of the electrode array; and
output an indication of the target position.