Medical lead anchoring
First Claim
1. A lead system comprising:
- an implantable lead, the lead comprising a proximal portion, a distal portion, a distal tip located on the distal portion, and at least one electrode located on the distal portion proximal of the distal tip;
an anchor, the anchor comprising a ring and a flange extending from the ring, the ring comprising a lumen, the anchor configured to be mounted on the lead such that the lead extends through the lumen while the ring is located proximally of the at least one electrode and the flange extends distally of the distal tip; and
a flexible tether having a proximal portion and a distal portion, the tether attached to the lead, the proximal portion of the tether extending from the distal tip of the lead, wherein the anchor is configured to anchor the lead to tissue when mounted on the lead and attached to the tether, wherein the lead, the anchor, and the tether are configured to form a loop that surrounds a section of tissue to anchor the lead to the tissue.
1 Assignment
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Accused Products
Abstract
Various embodiments concern a lead system for anchoring a lead, the lead system comprising a lead and an anchor. The anchor can comprise a ring and a flange extending from the ring. The anchor can be mounted on the lead such that the lead extends through the ring and the flange extends over an electrode of the lead. The lead system can further comprise a tether having a proximal portion and a distal portion. The proximal portion of the tether can attached to the lead while the distal portion of the tether can be attached to a needle. During an implantation procedure, the tether can be cut to remove the needle. The tether can then be attached to the flange. The lead, the anchor, and the tether can form a loop around a section of tissue to anchor the lead to the tissue.
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Citations
17 Claims
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1. A lead system comprising:
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an implantable lead, the lead comprising a proximal portion, a distal portion, a distal tip located on the distal portion, and at least one electrode located on the distal portion proximal of the distal tip; an anchor, the anchor comprising a ring and a flange extending from the ring, the ring comprising a lumen, the anchor configured to be mounted on the lead such that the lead extends through the lumen while the ring is located proximally of the at least one electrode and the flange extends distally of the distal tip; and a flexible tether having a proximal portion and a distal portion, the tether attached to the lead, the proximal portion of the tether extending from the distal tip of the lead, wherein the anchor is configured to anchor the lead to tissue when mounted on the lead and attached to the tether, wherein the lead, the anchor, and the tether are configured to form a loop that surrounds a section of tissue to anchor the lead to the tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A lead system comprising:
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an implantable lead, the lead comprising a proximal portion, a distal portion, and at least one electrode located on the distal portion; an anchor, the anchor comprising a ring and a flange extending from the ring, the ring comprising a lumen, the anchor configured to be mounted on the lead such that the lead extends through the lumen while the ring is located proximally of the at least one electrode and the flange extends distal of the at least one electrode; and a tether having a proximal portion and a distal portion, the proximal portion of the tether attached to the distal portion of the lead, the tether configured to attach to the flange, wherein the lead, the anchor, and the tether are configured to form a loop that surrounds a section of tissue to anchor the lead to the tissue.
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10. A method of anchoring an implantable lead to tissue with an anchor, the lead comprising a distal portion, a distal tip located on the distal portion, at least one electrode located on the distal portion proximal of the distal tip, and a tether extending from the distal tip, the anchor comprising a ring and a flange extending from the ring, the method comprising:
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embedding the at least one electrode in the tissue; sliding the ring in the distal direction over the lead such that the ring is located proximally of the least one electrode and positioning the anchor such that the flange extends distally of the distal tip; and attaching the tether to a distal portion of the flange, wherein a section of the tissue is surrounded by a loop formed by the lead, the anchor, and the tether to anchor the lead to the tissue. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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Specification