The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 30, 2014
Filed:
Jun. 29, 2011
Tomihisa Kato, Aichi, JP;
Tomihisa Kato, Aichi, JP;
Asahi Intecc Co., Ltd., Nagoya, JP;
Abstract
In a medical guide wire, a helical spring bodyis made of austenitic stainless steel wire treated with a solid-solution procedure, and tightly drawn with a whole cross sectional reduction ratio as 90%-99.5%. A metallic wire element of the helical spring bodyis heat treated at low temperature within a range in which a tensile rupture strength of the helical spring bodyrapidly increases by partly or totally making use of a conductive heat generated when a core wireand the helical spring bodyare in part bonded by means of a welding member. This makes it possible to improve a mechanical strength property, especially a fatigue-resistant property against a repetitive bending action of the helical spring body