Stent
AssigneeBoston Scientific Scimed, Inc.
InventorsGary Gilmartin, Martyn G Folan, Geraldine Toner, Paul E. Tierney, David Collins
Life of this patent
Estimating the term…
Abstract
An illustrative stent may comprise an elongated tubular member having a first end and a second end and an intermediate region disposed therebetween. The elongated tubular member configured to move between a collapsed configuration and an expanded configuration. The elongated tubular member may comprise at least one twisted filament, such as a knitted filament having a plurality of twisted knit stitches with intermediate rung portions extending between adjacent twisted knit stitches, or a plurality of helical filaments twisted with a plurality of longitudinal filaments.
Claims15
A stent, the stent comprising:
- an elongated tubular member comprising a single knitted filament having a plurality of twisted knit stitches with intermediate rung portions extending between adjacent twisted knit stitches, the elongated tubular member configured to move between a collapsed configuration and an expanded configuration;
- wherein the plurality of twisted knit stitches each include a loop portion and an overlapping base region;
- wherein in the collapsed configuration the intermediate rung portions have a first length and in the expanded configuration the intermediate rung portions have a second length greater than the first length.
A stent, the stent comprising:
- an elongated tubular member comprising a knitted filament, the elongated tubular member configured to move between a collapsed configuration and an expanded configuration;
- wherein the elongated tubular member includes a first portion having a first knit pattern and a second portion having a second knit pattern different from the first knit pattern;
- wherein the second portion is formed of one or more rows of the knitted filament having a plurality of twisted knit stitches with intermediate rung portions extending between adjacent twisted knit stitches, wherein the plurality of twisted knit stitches each include a loop portion and an overlapping base region;
- wherein in the collapsed configuration the plurality of twisted knit stitches have a first profile and in the expanded configuration the plurality of twisted knit stitches have a second profile different from the first profile.
A stent, the stent comprising:
- an elongated tubular member comprising a knitted filament, the elongated tubular member configured to move between a collapsed configuration and an expanded configuration;
- wherein the elongated tubular member includes a first portion having a first knit pattern and a second portion having a second knit pattern different from the first knit pattern;
- wherein the first portion is formed of one or more rows of the knitted filament having a plurality of open loops with intermediate rung portions extending between adjacent open loops;
- wherein the second portion is formed of one or more rows of the knitted filament having a plurality of twisted knit stitches with intermediate rung portions extending between adjacent twisted knit stitches;
- wherein a length of the intermediate rung portions of the second portion in the collapsed configuration is less than a length of the intermediate rung portions of the second portion in the expanded configuration.
Dependencies are inferred from the claim text.