Low profile improved radiopacity intraluminal medical device
First Claim
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1. An intraluminal medical device comprising:
- a substantially tubular member having open ends, and a first diameter for insertion into a lumen of a vessel and a second diameter for anchoring in the lumen of the vessel; and
at least one marker connected to at least one end of the substantially tubular member, the at least one marker comprising a marker housing having a substantially oval shape with a continuous perimeter and a marker insert having a substantially oval shape, both having a radius of curvature equal to the radius of curvature of the substantially tubular member.
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Abstract
A stent or other intraluminal medical device having markers formed from housings integral with the stent and marker inserts having a higher radiopacity than the stent provides for more precise placement and post-procedural visualization in a vessel, by increasing the radiopacity of the stent under X-ray fluoroscopy. The housings are formed integral to the stent and the marker inserts are made from a material close in the galvanic series to the stent material and sized to substantially minimize the effect of galvanic corrosion. The housings are also shaped to minimize their impact on the overall profile of the stent.
45 Citations
26 Claims
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1. An intraluminal medical device comprising:
- a substantially tubular member having open ends, and a first diameter for insertion into a lumen of a vessel and a second diameter for anchoring in the lumen of the vessel; and
at least one marker connected to at least one end of the substantially tubular member, the at least one marker comprising a marker housing having a substantially oval shape with a continuous perimeter and a marker insert having a substantially oval shape, both having a radius of curvature equal to the radius of curvature of the substantially tubular member. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- a substantially tubular member having open ends, and a first diameter for insertion into a lumen of a vessel and a second diameter for anchoring in the lumen of the vessel; and
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8. An intraluminal medical device comprising:
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a thin-walled, substantially tubular member, defining a longitudinal axis with a radius of curvature, having open ends, and a first diameter for insertion into a lumen of a vessel and a second diameter for anchoring in the lumen of the vessel, the thin-walled tubular member comprising a superelastic alloy, the substantially tubular member comprising a plurality of adjacent hoops interconnected by a plurality of bridges, the plurality of adjacent hoops being formed from a plurality of longitudinal struts and a plurality of loops connecting adjacent struts; and at least one marker extending from and connected to at least one end of the thin-walled, substantially tubular member, the at least one marker comprising a marker housing having a substantially circular shape with a continuous perimeter defining a circumference having first and second flattened sections, wherein the first and second flattened sections are aligned with the longitudinal axis, substantially parallel to the plurality of longitudinal struts when the substantially tubular member is at its first diameter and to each other and a marker insert, both having a radius of curvature equal to the radius of curvature of the substantially tubular member. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. A stent comprising:
- a thin-walled, substantially tubular member defining a longitudinal axis with a radius of curvature, having open ends, and a first diameter for insertion into a lumen of a vessel and a second diameter for anchoring in the lumen of the vessel, the thin-walled tubular member comprising a superelastic alloy, the substantially tubular member comprising a plurality of adjacent hoops interconnected by a plurality of bridges, the plurality of adjacent hoops being formed from a plurality of longitudinal struts and a plurality of loops connecting adjacent struts; and
at least one marker extending from and connected to at least one end of the thin-walled, substantially tubular member, the at least one marker comprising a marker housing having a substantially circular shape with a continuous perimeter, defining a circumference having first and second flattened sections, wherein the first and second flattened sections are aligned with the longitudinal axis, and a marker insert, both having a radius of curvature equal to the radius of curvature of the substantially tubular member. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
- a thin-walled, substantially tubular member defining a longitudinal axis with a radius of curvature, having open ends, and a first diameter for insertion into a lumen of a vessel and a second diameter for anchoring in the lumen of the vessel, the thin-walled tubular member comprising a superelastic alloy, the substantially tubular member comprising a plurality of adjacent hoops interconnected by a plurality of bridges, the plurality of adjacent hoops being formed from a plurality of longitudinal struts and a plurality of loops connecting adjacent struts; and
Specification