熱影響が極小で微細形状が形成された管,軸材及びその加工方法
- 专利权人:
- 独立行政法人産業技術総合研究所
- 发明人:
- 栗田 恒雄,宮澤 伸一,三島 望
- 申请号：
- JP2009172626
- 公开号：
- JP5267996B2
- 申请日:
- 2009.07.24
- 申请国别(地区):
- JP
- 年份:
- 2013
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide a stent processing method, where there is no possibility of occurrence of either thermally effected layer or fused coagulant matter through laser irradiation, and the fear of adhesion of blood platelets or damages to vessels or red blood cells is reduced.
SOLUTION: The stent processing method includes: an insulating film is formed over the entire external surface of a metallic tube next, the insulating film for the tube part to form a pattern hole is removed next, the pattern hole is formed after removing the metal there by electrolytic processing a passive film is formed over the entire inner surface of the pattern hole while the electrolytic processing continues when the passive film becomes active as an insulating film, this film is removed from the bottom of pattern hole by laser irradiation next, metal is removed by electrolytic processing from the bottom of pattern hole where the insulating film has been removed and thereafter, electrolytic processing and laser irradiation are repeated until the pattern hole completely opens.
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- 来源网站：
- 中国工程科技知识中心
