Radiopacity intraluminal medical device
First Claim
Patent Images
1. An intraluminal medical device comprising:
- a substantially tubular member having an inner surface defining an inner radius of curvature, an outer surface defining an outer radius of curvature, 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 integral to and extending from at least one end of the substantially tubular member, the at least one marker comprising a marker housing having an inner surface and an outer surface and a marker insert having an inner surface and an outer surface, the inner surface of the marker housing and the marker insert each having a radius of curvature equal to the radius of curvature of the inner surface of the substantially tubular member, the outer surface of the marker housing having a radius of curvature equal to the radius of curvature of the outer surface of the substantially tubular member, and the outer surface of the marker insert having a radius of curvature less than the radius of curvature of the outer surface of the marker housing such that the outer surface of the marker insert is recessed below the outer surface of the marker housing, the marker housing defining an opening that is conical in the radial direction with the outer surface of the marker housing having a diameter larger than the diameter of the inner surface of the marker housing.
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Accused Products
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.
239 Citations
17 Claims
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1. An intraluminal medical device comprising:
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a substantially tubular member having an inner surface defining an inner radius of curvature, an outer surface defining an outer radius of curvature, 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 integral to and extending from at least one end of the substantially tubular member, the at least one marker comprising a marker housing having an inner surface and an outer surface and a marker insert having an inner surface and an outer surface, the inner surface of the marker housing and the marker insert each having a radius of curvature equal to the radius of curvature of the inner surface of the substantially tubular member, the outer surface of the marker housing having a radius of curvature equal to the radius of curvature of the outer surface of the substantially tubular member, and the outer surface of the marker insert having a radius of curvature less than the radius of curvature of the outer surface of the marker housing such that the outer surface of the marker insert is recessed below the outer surface of the marker housing, the marker housing defining an opening that is conical in the radial direction with the outer surface of the marker housing having a diameter larger than the diameter of the inner surface of the marker housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An intraluminal medical device comprising:
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a thin-walled, substantially tubular member having an inner surface defining an inner radius of curvature, an outer surface defining an outer radius of curvature, open ends, and a first diameter for insertion into the 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; and
at least one marker integral to and extended from at least one end of the substantially tubular member, the at least one marker comprising a marker housing having an inner surface and an outer surface and a marker insert having an inner surface and an outer surface, the inner surface of the marker housing and the marker insert each having a radius of curvature equal to the radius of curvature of the inner surface of the substantially tubular member, the outer surface of the marker housing having a radius of curvature equal to the radius of curvature of the outer surface of the substantially tubular member, and the outer surface of the marker insert having a radius of curvature less than the radius of curvature of the outer surface of the marker housing such that the outer surface of the marker insert is recessed below the outer surface of the marker housing, the marker housing defining an opening that is conical in the radial direction with the outer surface of the marker housing having a diameter larger than the diameter of the inner surface of the marker housing. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification