FIXATION COMPONENTS FOR IMPLANTABLE MEDICAL DEVICES AND ASSOCIATED DEVICE CONSTRUCTION
First Claim
1. A fixation component for a medical electrical lead, the component comprising:
- an elongate tubular sidewall including an inner surface and an outer surface, the inner surface defining an elongate lumen that has a uniform diameter along an entire length of the component, to receive a body of the lead, and the outer surface including a central portion and two end portions extending longitudinally from either end of the central portion, the two end portions having a diameter that is less than that of the central portion;
a plurality of deformable barb-like projections being spaced apart from one another along a length of the central portion of the outer surface of the tubular sidewall, each projection including a first end attached to the tubular sidewall and a second, free end spaced apart from the outer surface of the tubular sidewall, when un-deformed; and
an aperture corresponding to each of the plurality of barb-like projections, each aperture extending through the elongate tubular sidewall from the central portion of the outer surface to the inner surface, and each aperture having a width and a length, the length of each aperture being defined from a first edge thereof to an opposing second edge thereof, the first edge of each aperture being located in proximity to the attached end of the corresponding projection, and the length and the width of each aperture being sized so that each aperture receives the corresponding projection therein, when the projection is deformed.
1 Assignment
0 Petitions
Accused Products
Abstract
A fixation component for a medical electrical lead includes a tubular sidewall that has an outer surface from which a plurality of deformable barb-like projections extend, each projection being in proximity to an aperture that extends through the sidewall. The projections are spaced apart from one another along a length of the component, and each extends from a first end, attached to the sidewall, in proximity to an edge of the corresponding aperture, to a second, free end, spaced apart from the outer surface of the sidewall, when the projection is un-deformed. The outer surface of the sidewall preferably includes reduced diameter end portions, to maintain a relatively low profile, when tubing members overlap thereon to secure the component around a body of the medical electrical lead. The body of the lead may include a conductor coil whose outer surface is directly overlaid by the component.
28 Citations
27 Claims
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1. A fixation component for a medical electrical lead, the component comprising:
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an elongate tubular sidewall including an inner surface and an outer surface, the inner surface defining an elongate lumen that has a uniform diameter along an entire length of the component, to receive a body of the lead, and the outer surface including a central portion and two end portions extending longitudinally from either end of the central portion, the two end portions having a diameter that is less than that of the central portion; a plurality of deformable barb-like projections being spaced apart from one another along a length of the central portion of the outer surface of the tubular sidewall, each projection including a first end attached to the tubular sidewall and a second, free end spaced apart from the outer surface of the tubular sidewall, when un-deformed; and an aperture corresponding to each of the plurality of barb-like projections, each aperture extending through the elongate tubular sidewall from the central portion of the outer surface to the inner surface, and each aperture having a width and a length, the length of each aperture being defined from a first edge thereof to an opposing second edge thereof, the first edge of each aperture being located in proximity to the attached end of the corresponding projection, and the length and the width of each aperture being sized so that each aperture receives the corresponding projection therein, when the projection is deformed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A temporary implantable medical electrical lead comprising:
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a proximal connector terminal; one or more distal electrodes; an elongate body formed, at least in part, by a conductor coil that extends between the proximal connector terminal and the one or more distal electrodes and electrically couples the connector terminal to the one or more electrodes, the conductor coil including one or more wound wire filars, each wire filar including an insulative layer for electrical isolation; and a fixation component directly overlaying an outer surface of the conductor coil in proximity to and proximal to the one or more distal electrodes, the fixation component including an elongate tubular sidewall, a plurality of deformable barb-like projections extending outward from an outer surface of the tubular sidewall, and an aperture corresponding to each projection and extending through the sidewall, each projection including a first end attached to the sidewall in proximity to an edge of the corresponding aperture, and a second, free end spaced apart from the outer surface of the sidewall, when un-deformed, and each aperture exposing the overlaid conductor coil to an environment outside the outer surface of the tubular sidewall of the fixation component. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification