Back to results
US 10,328,253 B2Granted
Medical electrical stimulation lead including expandable coiled fixation element
AssigneeMedtronic, Inc.
InventorPatrick D. Wells
Life of this patent
Estimating the term…
Abstract
A medical lead includes a coiled conductor portion that defines at least part of an outer surface of the lead and an expandable coiled fixation element that defines at least a part of the outer surface of the lead. The expandable coiled fixation element is configured to expand from a first dimension in a first state to a second dimension in a second state in a direction away from the coiled conductor portion. In some examples, the expandable coiled fixation element comprises a shape memory material.
Claims33
A system comprising:
- a medical lead defining a longitudinal axis, the medical lead comprising:
- a coiled conductor that defines at least part of an outermost surface of the medical lead;
- an electrode electrically connected to the coiled conductor;
- and
- an expandable coiled fixation element that defines at least part of the outermost surface of the medical lead, the expandable coiled fixation element defining a plurality of turns, and at least one of the turns being configured to expand away from the coiled conductor from a first dimension in a first state to a second dimension in a second state, wherein the first and second dimensions are measured in a direction substantially perpendicular to the longitudinal axis.
2 more elements
A medical lead defining a longitudinal axis, the medical lead comprising:
- means for conducting electrical stimulation signals, wherein the means for conducting electrical stimulation signals comprises a coiled portion defining at least part of an outermost surface of the medical lead;
- means for generating electrical stimulation therapy, wherein the means for generating electrical stimulation therapy is electrically connected to the means for conducting electrical stimulation signals;
- and
- means for fixing the means for conducting electrical stimulation signals to tissue of a patient, the means for fixing being coiled and defining at least part of the outermost surface of the medical lead, the means for fixing defining a plurality of turns and at least one of the turns being configured to expand away from the coiled portion of the means for conducting from a first dimension in a first state to a second dimension in a second state, wherein the first and second dimensions are measured in a direction substantially perpendicular to the longitudinal axis.
1 more element
A method comprising:
- implanting a medical lead in a patient, the medical lead defining a longitudinal axis, the medical lead comprising:
- a coiled conductor that defines at least part of an outermost surface of the medical lead;
- an electrode electrically connected to the coiled conductor;
- and
- an expandable coiled fixation element that defines at least part of the outermost surface of the medical lead, the expandable coiled fixation element defining a plurality of turns, and at least one of the turns being configured to expand away from the coiled conductor from a first dimension in a first state to a second dimension in a second state wherein the first and second dimensions are measured in a direction substantially perpendicular to the longitudinal axis;
- and
- applying electrical energy to the expandable coiled fixation element via an electrical energy source to cause the expandable coiled fixation element to expand away from the coiled conductor.
4 more elements
A method comprising:
- coiling a conductor to define a coiled conductor portion that defines at least part of an outermost surface of a medical lead, the medical lead defining a longitudinal axis;
- and
- coiling an elongated member to define an expandable coiled fixation element that defines at least part of the outermost surface of the medical lead, the expandable coiled fixation element being configured to expand away from the coiled conductor from a first dimension in a first state to a second dimension in a second state, wherein the first and second dimensions are measured in a direction substantially perpendicular to the longitudinal axis.
Dependencies are inferred from the claim text.