Implantable lead affixation structure for nerve stimulation to alleviate bladder dysfunction and other indication
First Claim
1. A method of forming a neurostimulation lead anchor for anchoring an implanted neurostimulation lead at a target tissue location in a body of a patient, the method comprising:
- laser cutting a helical pattern into a single tubular section of a material, the helical pattern corresponding to a neurostimulation lead anchor with a helical body having a plurality of tines in a constrained configuration;
supporting the plurality of tines of the single tubular section in an outwardly protruding position corresponding to a deployed configuration of the neurostimulation lead anchor; and
heat setting the single tubular section while the plurality of tines are supported, thereby setting the material while the neurostimulation lead anchor is in the deployed configuration.
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Accused Products
Abstract
Anchoring devices and methods for affixing an implanted lead of a neurostimulation system at a target location in a patient are provided herein. Such anchoring devices includes a helical body having a plurality of tines extending laterally outward from the lead when deployed that engage tissue to inhibit axial movement of the implanted lead. The plurality of tines are biased towards the laterally extended deployed configuration and fold inward towards the lead to a delivery configuration to facilitate delivery of the lead through a sheath. The tines may be angled in a proximal direction or in both proximal and distal directions and may include various features to assist in visualization and delivery of the lead. The anchor may be formed according to various methods, including laser cutting of a tubular section along with heat or reflow to set the material with the anchor in the deployed configuration and injection molding.
277 Citations
20 Claims
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1. A method of forming a neurostimulation lead anchor for anchoring an implanted neurostimulation lead at a target tissue location in a body of a patient, the method comprising:
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laser cutting a helical pattern into a single tubular section of a material, the helical pattern corresponding to a neurostimulation lead anchor with a helical body having a plurality of tines in a constrained configuration; supporting the plurality of tines of the single tubular section in an outwardly protruding position corresponding to a deployed configuration of the neurostimulation lead anchor; and heat setting the single tubular section while the plurality of tines are supported, thereby setting the material while the neurostimulation lead anchor is in the deployed configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of forming a neurostimulation lead anchor for anchoring an implanted neurostimulation lead at a target tissue location in a body of a patient, the method comprising:
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cutting a pattern into a single tubular portion of a material, the pattern corresponding to a neurostimulation lead anchor comprising a plurality of tines in a constrained configuration, wherein the plurality of tines are distributed along a longitudinal axis of the neurostimulation lead anchor; supporting the plurality of tines in an outwardly protruding position corresponding to a deployed configuration of the anchor; and setting the plurality of tines in the outwardly protruding position by heat setting or reflow. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification