Neurological stimulation lead anchors and associated tools, and methods
A lead anchor comprising a longitudinally extending anchor body and a retainer. The longitudinally extending anchor body having a lumen positioned to receive a spinal cord lead therethrough and having a retainer pocket intersecting the lumen. The retainer is positioned in the retainer pocket. The retainer comprises a first grip member having at least one first aperture, a second grip member having at least one second aperture, and at least one U-shaped resilient portion connecting the first and second grip members.
1. A lead anchor, comprising:
a longitudinally extending anchor body having a lumen extending entirely through the anchor body and positioned to receive a spinal cord lead therethrough, and having a retainer pocket intersecting the lumen; and
a retainer positioned in the retainer pocket, the retainer comprising:
a first grip member having at least one first aperture;
a second grip member having at least one second aperture; and
a U-shaped resilient portion connecting the first and second grip members.
2. The lead anchor of claim 1 , wherein the at least one first aperture is generally aligned with the lumen.
3. The lead anchor of claim 2 , wherein the at least one second aperture is offset from the first aperture when the at least one U-shaped resilient portion is in a relaxed state.
4. The lead anchor of claim 1 , wherein the first grip member comprises a pair of opposed first wall portions and a pair of generally coaxial first apertures, each formed through a corresponding one of the pair of opposed first wall portions.
5. The lead anchor of claim 4 , wherein the second grip member comprises a pair of opposed second wall portions and a pair of generally coaxial second apertures, each formed through a corresponding one of the pair of opposed second wall portions, wherein the second grip member is positioned between the pair of opposed first wall portions.
6. The lead anchor of claim 5 , wherein the U-shaped resilient portion is a first U-shaped resilient portion and wherein the lead anchor further comprises a second U-shaped resilient portion, each of the first and second U-shaped resilient portions being positioned on opposite sides of the pair of opposed first wall portions.
7. The lead anchor of claim 6 , wherein the retainer comprises a continuous strip of material.
8. The lead anchor of claim 6 , wherein the retainer pocket includes a central region intersecting the lumen and a pair of lateral ledge regions, each at least partially containing a corresponding one of the first and second U-shaped resilient portions.