Medical devices having alloy compositions

Abstract

A medical device includes an alloy having chromium, niobium, and platinum, wherein the alloy forms at least a portion of the medical device.

1 - 24 . (canceled) 
     
     
         25 . A medical device comprising an alloy comprising chromium, greater than or equal to about 5 weight percent niobium, and greater than or equal to about 5 weight percent platinum, wherein the alloy forms at least a portion of the medical device. 
     
     
         26 . The device of  claim 25 , wherein the alloy comprises less than about 5 percent by weight of a ferromagnetic element. 
     
     
         27 . The device of  claim 25 , wherein the alloy comprises less than about 5 percent by weight of iron, nickel, or cobalt. 
     
     
         28 . The device of  claim 25 , wherein the alloy further comprises a first element selected from a group consisting of silicon, calcium, boron, aluminum, nitrogen, carbon, selenium, yttrium, tantalum, and manganese. 
     
     
         29 . The device of  claim 28 , wherein the alloy comprises a plurality of first elements. 
     
     
         30 . The device of  claim 28 , wherein the alloy comprises less than about 2% by weight of the first element. 
     
     
         31 . The device of  claim 25 , wherein the alloy comprises from about 5 percent to about 30 percent by weight platinum. 
     
     
         32 . The device of  claim 25 , wherein the alloy comprises from about 25 percent to about 30 percent by weight platinum. 
     
     
         33 . The device of  claim 25 , wherein the alloy comprises from about 5 percent to about 40 percent by weight niobium. 
     
     
         34 . The device of  claim 25 , wherein the alloy comprises from about 10 percent to about 20 percent by weight niobium. 
     
     
         35 . The device of  claim 25 , wherein the alloy comprises from about 30 percent to about 90 percent by weight chromium. 
     
     
         36 . The device of  claim 25 , wherein the alloy comprises from about 40 percent to about 50 percent by weight chromium. 
     
     
         37 . The device of  claim 25 , wherein the alloy comprises:
 from about 30 percent to about 50 percent by weight chromium;   from about 10 percent to about 40 percent by weight niobium; and   from about 5 percent to about 30 percent by weight platinum.   
     
     
         38 . The device of  claim 25 , wherein the alloy comprises:
 from about 40 percent to about 50 percent by weight chromium;   from about 25 percent to about 30 percent by weight niobium; and   from about 25 percent to about 30 percent by weight platinum.   
     
     
         39 . The device of  claim 25 , wherein the alloy consists essentially of chromium, niobium, and platinum. 
     
     
         40 . The device of  claim 25 , wherein the alloy comprises a binary phase. 
     
     
         41 . The device of  claim 40 , wherein the binary phase is selected from the group consisting of Cr 3 Pt, Cr 2 Nb, and Nb 3 Pt. 
     
     
         42 . The device of  claim 25 , in the form of a stent. 
     
     
         43 . The device of  claim 25 , wherein the device is selected from the group consisting of a guidewire, a needle, a catheter, an intraluminal filter, a staple, a clip, an orthopedic implant, and dental prosthesis. 
     
     
         44 . A stent, comprising
 an alloy comprising chromium, greater than or equal to about 10 weight percent niobium, and greater than or equal to about 5 weight percent platinum, wherein the alloy forms at least a portion of the stent.