医療用ガイドワイヤ、その製造方法、及び医療用ガイドワイヤとマイクロカテーテル、又はバルーンカテーテルとガイディングカテーテルとの組立体
- 专利权人:
- 朝日インテック株式会社
- 发明人:
- 加藤 富久
- 申请号：
- JP2009190470
- 公开号：
- JP5367503B2
- 申请日:
- 2009.08.19
- 申请国别(地区):
- JP
- 年份:
- 2013
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide a manufacturing method or the like which is a technical subject as a suitable condition for improving the tensile strength characteristics of a core wire by paying attention to the temperature and tensile strength characteristics of the core wire to which high deformation wire drawing is executed, in a medical guide wire using a stainless steel wire for the core wire.
SOLUTION: By using an austenitic stainless steel wire to which solid solution treatment is executed for the core wire, performing the wire drawing work of strong deformation with the total area reduction rate of 90% to 97.6%, and repeatedly using low temperature heat treatment of a suitable condition for each mechanical work of the core wire, and by taking into consideration the low temperature heat treatment after twisting work, the heat utilization of resin film formation to the core wire and the heat conductivity of the core wire, etc., the mechanical strength characteristics of the core wire are improved.
COPYRIGHT: (C)2011,JPO&INPIT
- 来源网站：
- 中国工程科技知识中心
