DEPLOYABLE ELECTRODE LEAD ANCHOR

• US 20110313427A1
• Filed: 06/23/2011
• Published: 12/22/2011
• Est. Priority Date: 07/10/2007
• Status: Active Grant

• Current Assignee: ASTORA Women's Health, LLC (Endo International PLC)
• Original Assignee: ASTORA Women's Health, LLC (Endo International PLC)
• Inventors: Gindele, Paul J., Buysman, John Jason, Montpetit, Karen Pilney, Moosai, Shiva P.
• Granted Patent: US 9,427,573 B2
• Time in Patent Office: Days
• US Class Current: 606/129
• CPC Class Codes: A61N 1/0558 Anchoring or fixation means therefor
• CPC Class Codes: A61N 1/36007 of urogenital or gastrointestinal organs, e.g. for incontinence control

Abstract

One embodiment of an electrode lead comprises a lead body, at least one electrode at a distal end of the lead body, an actuatable member and at least one anchor wire. The actuatable member is positioned within a lumen of the lead body. The at least one anchor wire has a proximal end that is attached to the actuatable member. Movement of the actuatable member relative to the lead body moves the at least one anchor wire through at least one opening in the lead body.

Claims

1. An electrode lead comprising:

a lead body;

at least one electrode at a distal end of the lead body;

an actuatable member within a lumen of the lead body; and

at least one anchor wire having a proximal end attached to the actuatable member;

wherein movement of the actuatable member relative to the lead body moves the at least one anchor wire through at least one opening in the lead body.

2. The electrode lead of claim 1, wherein a distal end of the at least one anchor wire moves radially from the lead body responsive to movement of the actuatable member.

3. The electrode lead of claim 1, wherein:

the anchor member is configured to move relative to the lead body along a longitudinal axis of the lead body; and

the at least one anchor wire is deployed or retracted through the at least one opening responsive to movement of the actuatable member relative to the lead body along the longitudinal axis.

4. The electrode lead of claim 3, further comprising a control member attached to the actuatable member and extending through the lumen of the lead body, wherein movement of the control member drives movement of the actuatable member along the longitudinal axis.

5. The electrode lead of claim 4, wherein the control member has a distal end that is removably attachable to the actuatable member.

6. The electrode lead of claim 5, wherein the actuatable member comprises an aperture that is configured to receive the distal end of the control member.

7. The electrode lead of claim 6, wherein the aperture of the actuatable member comprises a keyhole, wherein the distal end of the control member may pass through the keyhole when angularly aligned with the keyhole, and the distal end of the control member is prevented from passing through the keyhole when angularly misaligned with the keyhole.

8. The electrode lead of claim 1, wherein:

the actuatable member is configured to rotate relative to the lead body about a longitudinal axis of the lead body; and

the at least one anchor wire is extended or retracted through the at least one opening responsive to rotation of the actuatable member about the longitudinal axis relative to the lead body.

9. The electrode lead of claim 8, wherein the at least one anchor wire is wound around the actuatable member.

10. A system comprising:

an introducer sheath having a sheath wall and a longitudinal axis;

an electrode lead comprising a lead body and at least one electrode at a distal end of the lead body, wherein the distal end of the lead body is received within the sheath;

at least one anchor wire within the sheath having a proximal end attached to the distal end of the lead body; and

wherein the at least one anchor wire moves through at least one opening in the sheath wall responsive to movement of the lead body relative to the introducer sheath.

11. The system of claim 10, wherein a distal end of the at least one anchor wire moves through the at least one opening in the sheath wall responsive to movement of the lead body along the longitudinal axis relative to the introducer sheath.

12. The system of claim 10, wherein the at least one anchor wire moves through the at least one opening in the sheath wall responsive to rotation of the lead body about the longitudinal axis relative to the introducer sheath.

13. A method comprising:

providing an electrode lead comprising a lead body, at least one electrode at a distal end of the lead body and at least one anchor wire having a proximal end connected to the lead body;

positioning the distal end of the lead body within tissue of a patient; and

moving a distal end of the at least one anchor wire radially from the lead body and into the tissue to anchor the distal end of the lead body to the tissue.

14. The method of claim 13, wherein:

providing an electrode lead further comprises providing an actuatable member within a lumen of the lead body, wherein the proximal end of the at least one anchor wire is attached to the actuatable member; and

moving a distal end of the at least one anchor wire comprises;

moving the actuatable member relative to the lead body; and

moving the distal end of the at least one anchor wire through an opening in the lead body responsive to moving the actuatable member.

15. The method of claim 14, wherein moving the actuatable member relative to the lead body comprises moving the actuatable member along a longitudinal axis of the lead body relative to the lead body.

16. The method of claim 14, wherein moving the actuatable member relative to the lead body comprises rotating the actuatable member about a longitudinal axis of the lead body relative to the lead body.

17. The method of claim 14, wherein positioning the distal end of the lead body within tissue of a patient comprises:

providing an introducer sheath having a sheath wall and a longitudinal axis;

positioning a distal end of the sheath in the tissue of the patient; and

feeding the distal end of the lead body into the introducer sheath.

18. The method of claim 17, wherein moving a distal end of the at least one anchor wire comprises:

moving the distal end of the lead body relative to the introducer sheath; and

moving the distal end of the at least one anchor wire through at least one opening in the sheath wall and into the tissue responsive to moving the distal end of the lead body.

19. The method of claim 18, wherein moving the distal end of the lead body comprises moving the distal end of the lead body along the longitudinal axis of the introducer sheath relative to the introducer sheath.

20. The method claim 18, wherein moving the distal end of the lead body comprises rotating the distal end of the lead body about the longitudinal axis of the introducer sheath relative to the introducer sheath.