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RADIOPAQUE AND MRI COMPATIBLE NITINOL ALLOYS FOR MEDICAL DEVICES
RADIOPAQUE AND MRI COMPATIBLE NITINOL ALLOYS FOR MEDICAL DEVICES
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机译:适用于医疗设备的射线不透和MRI兼容的镍合金
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摘要
A radiopaque nitinol medical device such as a stent for use with or implantation in a body lumen is disclosed. The stent is made from a superelastic alloy such as nickeltitanium or nitinol, and includes a ternary element selected from the group of chemical elements consisting of iridium, platinum, gold, rhenium, tungsten, palladium, rhodium, tantalum, silver, ruthenium, or hafnium. The nitinol stent has improved radiopacity yet retains its superelastic and shape memory behavior and further maintains a thin strut/wall thickness for high flexibility. Another embodiment includes a balloon expandable stent made from a radiopaque and MRI compatible alloy such as nitinol and includes a ternary element selected from the group of chemical elements consisting of iridium, platinum, gold, rheniurn, tungsten, palladium, rhodium, tantalum, silver, ruthenium, hafnium, osmium, zirconium, niobium, or molybdenum.
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