Neurological stimulation lead anchors and associated systems and methods

• US 9,687,649 B2
• Filed: 02/04/2016
• Issued: 06/27/2017
• Est. Priority Date: 06/28/2013
• Status: Active Grant

• Current Assignee: Nevro Corporation
• Original Assignee: Nevro Corporation
• Inventors: Thacker, James R.
• Primary Examiner(s): GETZOW, SCOTT M
• Application Number:
  US15/016,183
• Publication Number:
  US 20160220809A1
• Time in Patent Office: 509 Days
• CPC Class Codes: A61N 1/0558 Anchoring or fixation means therefor

Abstract

A spinal cord lead anchor comprising a longitudinally extending sleeve having an aperture sized and positioned to receive a spinal cord lead. A retainer is disposed around the sleeve and is operative to compress at least a portion of the sleeve against a spinal cord lead extending through the sleeve. A cover extends around the retainer and includes at least one opening formed through the cover to facilitate engaging the retainer with a tool.

Claims

1. A lead anchor, comprising:

a longitudinally extending sleeve having an aperture sized and positioned to receive a lead therethrough;

a retainer disposed around the sleeve and operative to compress at least a portion of the sleeve against a lead extending through the aperture;

a cover extending around the retainer; and

a spacer positioned to maintain the retainer in an expanded state.

2. The lead anchor of claim 1, wherein the cover includes at least one opening aligned with the retainer to provide access to the retainer from outside the cover.

3. The lead anchor of claim 2, wherein the retainer is a circlip having a pair of apertures engageable with a tool.

4. The lead anchor of claim 3, wherein the openings comprise a pair of longitudinally extending slots aligned with the pair of apertures.

5. The lead anchor of claim 1, wherein the spacer is frangible.

6. The lead anchor of claim 1, wherein the spacer is deformable.