Patent ID: 7452501
Filing Date: 2008-11-18
Classification: A61F,A61L,Y10S

Abstract:
1. A stent that is at least partially formed of a metal alloy which improves the strength and ductility of the stent, said metal alloy including at least about 95 weight percent of a solid solution of at least three metals selected from the group consisting of rhenium, molybdenum, titanium, yttrium, and zirconium, said metal alloy including 45-50 weight percent rhenium and 50-55 weight percent molybdenum, said metal alloy includes a plurality of second phase particles, said second phase particles including carbides carbo-nitrides, oxides or mixtures thereof, said metal alloy including carbon and oxygen and having a carbon to oxygen atomic ratio of at least about 2.5:1, said metal alloy having an average yield strength of at least about 110 ksi and an average ultimate tensile strength of at least about 100 ksi, said metal alloy having an average grain size of over 5 ASTM, said metal alloy having an average tensile elongation of at least about 25%.