×

METHODS, SYSTEMS AND DEVICES FOR REDUCING MIGRATION

  • US 20160279408A1
  • Filed: 06/09/2016
  • Published: 09/29/2016
  • Est. Priority Date: 05/10/2010
  • Status: Active Grant
First Claim
Patent Images

1. A method of positioning a lead to electrically stimulate a dorsal root ganglion of a patient, comprising:

  • accessing an epidural space of a patient with an introducer sheath at an entry point;

    advancing a distal end of the lead with a stylet through the introducer sheath to enter the epidural space, wherein the lead comprises a lead body, of a soft pliant polymer material, without a mechanical bias to assume a predetermined shape;

    advancing the lead from the epidural space through a foramen in a position wherein electrodes of the lead are positioned proximate to the dorsal root ganglion;

    after the lead is positioned with electrodes proximate to the dorsal root ganglion, introducing an additional portion of a shaft of the lead into the epidural space with the stylet withdrawn from the additional portion of the shaft, wherein the additional portion of the shaft is more flexible than the distal end of the lead to cause the additional portion of the shaft to form an undulating or loop shape in the epidural space without displacing the electrodes from a location proximate to the dorsal root ganglion; and

    connecting the lead to an implantable pulse generator to provide electrical stimulation to the dorsal root ganglion through electrodes of the lead, wherein the undulating or loop shape of the additional portion of the lead forms a slack anchor between electrodes of the lead and the entry point.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×