US2004062676A1PendingUtilityA1

Alloy for use as stents

39
Assignee: HERAEUS GMBH W CPriority: Sep 27, 2002Filed: May 28, 2003Published: Apr 1, 2004
Est. expirySep 27, 2022(expired)· nominal 20-yr term from priority
Inventors:Jens TrötzschelJurgen WachterFrank KrügerMatthias Frericks
C22C 27/02A61L 31/022
39
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Claims

Abstract

Alloys for use as stents which consist essentially of niobium (Nb), tantalum (Ta) and zirconium (Zr).

Claims

exact text as granted — not AI-modified
We claim:  
     
         1 . An alloy for use as stents, which is composed essentially of: 
 50-98.9% Nb;    0.5-5% Zr; and    0.6-49.5% tantalum.    
     
     
         2 . An alloy in accordance with  claim 1 , which is composed essentially of: 
 90-98.9% Nb;    0.5-5% Zr; and    0.6-9.5% Ta.    
     
     
         3 . An alloy in accordance with  claim 1 , which is composed essentially of: 
 80-97% Nb;    2-5% Zr; and    1-18% Ta.    
     
     
         4 . An alloy in accordance with  claim 1 , which is composed essentially of: 
 80-90% Nb;    0.5-5% Zr; and    5-19.5% Ta.    
     
     
         5 . An alloy in accordance  claim 1 , wherein the alloy contains more tantalum than zirconium.  
     
     
         6 . A stent made of an alloy composed essentially of: 
 50-98.9% Nb;    0.5-5% Zr; and    0.6-49.5% tantalum.    
     
     
         7 . A stent in accordance with  claim 6 , wherein the alloy which is composed essentially of: 
 90-98.9% Nb;    0.5-5% Zr; and    0.6-9.5% Ta.    
     
     
         8 . A stent in accordance with  claim 6 , which is composed essentially of: 
 80-97% Nb;    2-5% Zr; and    1-18% Ta.    
     
     
         9 . A stent in accordance with  claim 6 , which is composed essentially of: 
 80-90% Nb;    0.5-5% Zr; and    5-19.5% Ta.    
     
     
         10 . A stent in accordance with  claim 6 , wherein the alloy contains more tantalum than zirconium.

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