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US 12,752,085 B2Granted
Guidewire including an elongated body with a flexible distal section
AssigneeCovidien LP
InventorsAshok R. Nageswaran, Daniel J. Deen
Life of this patent
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Abstract
A guidewire comprising: a core wire defining a longitudinal axis; and an elongated body extending along the longitudinal axis, the elongated body defining: an inner lumen configured to retain a distal portion of the core wire and a plurality of openings, wherein each opening of the plurality of openings defines an arc defining a radius of curvature and a concave portion facing a distal end of the elongated body or a proximal end of the elongated body, and wherein the radii of curvature of the plurality of openings varies along the longitudinal axis.
Claims20
A guidewire comprising:
- a core wire defining a longitudinal axis;
- and
- an elongated body extending along the longitudinal axis, the elongated body defining:
- an inner lumen configured to retain a distal portion of the core wire and
- a plurality of openings, wherein each opening of the plurality of openings defines an arc defining a radius of curvature and a concave portion facing a distal end of the elongated body or a proximal end of the elongated body, and wherein the radii of curvature of the plurality of openings varies along the longitudinal axis.
2 more elements
A guidewire comprising:
- a core wire;
- and
- an elongated body extending along a longitudinal axis, the elongated body defining:
- an inner lumen, wherein the distal portion of the core wire is positioned within the inner lumen;
- and
- a plurality of openings disposed along the elongated body between a distal end of the elongated body and a proximal end of the elongated body, wherein each opening of the plurality of openings defines an arc defining a radius of curvature and extending from a first end to a second end, wherein the first end and the second end are disposed at a same longitudinal position along the elongated body, and wherein for each arc, a center of the arc is disposed at a different longitudinal position than the first end and the second end of the arc,
- wherein the plurality of openings defines a plurality of rows of openings around a perimeter of the elongated body, wherein longitudinally adjacent rows of openings are separated by a longitudinal distance, and wherein the longitudinal distances between longitudinally adjacent rows and the radii of curvature of the plurality of openings increase or decrease between the distal end and the proximal end.
4 more elements
A guidewire comprising:
- a core wire defining a longitudinal axis;
- and
- an elongated body extending along the longitudinal axis, the elongated body defining:
- an inner lumen, wherein a distal section of the core wire is positioned within the inner lumen;
- and
- a plurality of openings between a distal end of the elongated body and a proximal end of the elongated body, wherein each opening of the plurality of openings defines an arc extending from a first end to a second end, wherein a center of the arc is longitudinally offset from the first and second ends, wherein the arc defines a radius of curvature, and wherein the plurality of openings comprises:
- a first group of openings disposed around a perimeter of the elongated body, the first group of openings defining a plurality of first circumferential rows of openings, and wherein the radii of curvature of the first group of openings varies along the longitudinal axis;
- and
- a second group of openings disposed around the perimeter, the second group of openings defining a plurality of second circumferential rows of openings,
- wherein each opening of the second group of openings is longitudinally adjacent to and is a mirror image of a respective opening of the first group of openings relative to a plane normal to the longitudinal axis,
- wherein each first circumferential row of openings is separated from a first longitudinally adjacent second circumferential row of openings by a first longitudinal distance, and
- wherein each first circumferential row of openings is separated from a second longitudinally adjacent second circumferential row of openings by a second longitudinal distance, wherein the second longitudinally adjacent second circumferential row of openings is different from the first longitudinally adjacent second circumferential row of openings, and wherein the second longitudinal distance is different from the first longitudinal distance.
9 more elements
Dependencies are inferred from the claim text.