专利名称：MANUFACTURE OF FINE-GRAINED
MATERIAL FOR USE IN MEDICAL DEVICES
发明人：PAMELA A. KRAMER,JOHN WILLIAM
MORRIS
申请号：US11771889申请日：20070629
公开号：US20070255387A1公开日：20071101
专利附图：
摘要：Medical devices are manufactured from fine grained materials, processed fromof a variety of metals and alloys, such as stainless steel, cobalt-chromium and nickel-titanium alloys. A fine grained metal or alloy is formed from a specimen rapidly heated toits recrystallization temperature, and then subjected to high temperature, multi-axialdeformation, for example, by heavy cross-forging or swaging. The deformed specimenmay be cooled and reheated to a second recrystallization temperature. The metal oralloy in the specimen is then allowed to recrystallize, such that the grain size is
controlled by quenching the specimen to room temperature. A desired medical device isthen configured from the fine grained material. Decreasing the average grain size of asubstrate material and increasing the number of grains across a thickness of a strut orsimilar component of the medical device increases the strength of the device and impartsother beneficial properties into the device.
申请人：PAMELA A. KRAMER,JOHN WILLIAM MORRIS
地址：SAN JOSE CA US,OAKLAND CA US
国籍：US,US
更多信息请下载全文后查看
因篇幅问题不能全部显示，请点此查看更多更全内容