Richard A Frank

US Patent:

7780798, Aug 24, 2010

Filed:

Mar 29, 2007

Appl. No.:

11/693498

Inventors:

Jonathan S. Stinson - Plymouth MN, US
Matthew Cambronne - Mounds View MN, US
Richard B. Frank - Reading PA, US
Richard A. Gleixner - Wyomissing PA, US
James E. Heilmann - West Lawn PA, US

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MN
CRS Holdings, Inc. - Wilmington DE

International Classification:

C22C 38/40
C22C 38/44
C22C 5/04
C22C 28/00

US Classification:

148326, 148327, 148419, 623 115, 623924, 420 35, 420 43, 420468, 4205841, 4205861

Abstract:

Medical devices, such as endoprostheses, and methods of making the devices are disclosed. The endoprostheses comprise a tubular member capable of maintaining patency of a bodily vessel. The tubular member includes a mixture of at least two compositions, where the presence of the second composition gives the mixture a greater hardness than that of the first composition alone. The first composition includes less than about 25 weight percent chromium, less than about 7 weight percent molybdenum, from about 10 to about 35 weight percent nickel, and iron. The second composition is different from the first and is present from about 0. 1 weight percent to about 5 weight percent of the mixture.