METHODS, SYSTEMS AND DEVICES FOR REDUCING MIGRATION
First Claim
1. A method of creating a slack anchor comprising:
- positioning a lead having a distal end and a shaft so that the distal end is positioned at a target location and the shaft extends along a first path;
advancing a sheath having a curved distal end over the shaft;
manipulating the sheath so that the curved distal end directs a portion of the shaft lateral to the first path; and
advancing the lead beyond the curved distal end directing the portion of the shaft lateral to the first path so that the portion of the shaft resides along a second path forming the slack anchor while substantially maintaining position of the distal end at the target location.
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Accused Products
Abstract
Devices, systems and methods for reducing migration of leads, catheters and similar devices are provided. In particular, devices, systems and methods are provided for creating a slack anchor which assists in maintaining the lead or catheter in a desired position. In some embodiments, the slack anchor is created within the epidural space. When targeting nerve anatomy within the spinal column or in the vicinity of the epidural space, anchoring within the epidural space allows the associated lead or catheter to be anchored as close to the target therapy site as desired or possible. By anchoring close to the target therapy site, the risk of movement or migration is significantly reduced or eliminated.
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Citations
27 Claims
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1. A method of creating a slack anchor comprising:
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positioning a lead having a distal end and a shaft so that the distal end is positioned at a target location and the shaft extends along a first path; advancing a sheath having a curved distal end over the shaft; manipulating the sheath so that the curved distal end directs a portion of the shaft lateral to the first path; and advancing the lead beyond the curved distal end directing the portion of the shaft lateral to the first path so that the portion of the shaft resides along a second path forming the slack anchor while substantially maintaining position of the distal end at the target location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of positioning a lead within an epidural space comprising:
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advancing a distal end of the lead from an entry point into the epidural space to a target location so that a portion of a shaft of the lead extends from the entry point to the target location along a first path within the epidural space; and introducing an additional portion of the shaft of the lead into the epidural space in a manner that forms a slack anchor between the target location and the entry point. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A device for treating a target location comprising:
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a lead comprising a shaft having at least one electrode disposed along its distal end and a structural kink point disposed along the shaft proximal to the at least one electrode so that the structural kink point resides within an epidural space while the at least one electrode is positioned near the target location, wherein the structural kink point assists in creating a slack anchor when a portion of the shaft is advanced into the epidural space while the position of the at least one electrode is substantially maintained near the target location. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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Specification