发明名称 Stainless steel alloy having lowered nickel chromium toxicity and improved biocompatibility
摘要 The present invention is directed towards an austenitic, stainless steel series 300 alloy having improved biocompatible characteristics. The modified stainless steel alloy consists essentially of, in weight percent, about <tables id="TABLE-US-00001" num="00001"> <table frame="none" colsep="0" rowsep="0"> <tgroup align="left" colsep="0" rowsep="0" cols="5"> <colspec colname="1" colwidth="42pt" align="center"/> <colspec colname="2" colwidth="35pt" align="center"/> <colspec colname="3" colwidth="49pt" align="center"/> <colspec colname="4" colwidth="49pt" align="center"/> <colspec colname="5" colwidth="42pt" align="center"/> <THEAD> <ROW> <entry namest="1" nameend="5" align="center" rowsep="1"/> </ROW> </THEAD> <TBODY VALIGN="TOP"> <ROW> <ENTRY>C</ENTRY> <ENTRY>Mn</ENTRY> <ENTRY>Si</ENTRY> <ENTRY>P</ENTRY> <ENTRY>S</ENTRY> </ROW> <ROW> <entry namest="1" nameend="5" align="center" rowsep="1"/> </ROW> <ROW> <ENTRY><=0.030</ENTRY> <ENTRY><=2.00</ENTRY> <ENTRY><=0.750</ENTRY> <ENTRY><=0.023</ENTRY> <ENTRY><=0.010</ENTRY> </ROW> <ROW> <entry namest="1" nameend="5" align="center" rowsep="1"/> </ROW> <ROW> <ENTRY>Cr</ENTRY> <ENTRY>Mo</ENTRY> <ENTRY>Ni</ENTRY> <ENTRY>Fe</ENTRY> <ENTRY>"X"</ENTRY> </ROW> <ROW> <entry namest="1" nameend="5" align="center" rowsep="1"/> </ROW> <ROW> <ENTRY>8.5-11.5</ENTRY> <ENTRY>0.0-6.25</ENTRY> <ENTRY>6.5-7.5</ENTRY> <ENTRY>46.185-74.000</ENTRY> <ENTRY>5.0-10.0</ENTRY> </ROW> <ROW> <entry namest="1" nameend="5" align="center" rowsep="1"/> </ROW> </TBODY> </TGROUP> </TABLE> </TABLES> whereby variable "x" could be comprised from a group consisting of Gold, Osmium, Palladium, Platinum, Rhenium, Tantalum, or Tungsten. The alloy provides a unique combination of strength, ductility, corrosion resistance, and other mechanical properties which also has improved biocompatible characteristics.
申请公布号 US7445749(B2) 申请公布日期 2008.11.04
申请号 US20030352458 申请日期 2003.01.28
申请人 BOSTON SCIENTIFIC SCIMED, INC. 发明人 CRAIG CHARLES HORACE
分类号 C22C38/18;A61L31/02;C22C38/00;C22C38/44;C22C38/48 主分类号 C22C38/18
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