Guide wires
AssigneeAsahi Intecc Co., Ltd.
InventorsKeisuke Ushida, Naozumi Iwata
Life of this patent
Estimating the term…
Abstract
A guide wire in which a distal end portion of the guide wire can be easily bent in a specific plane direction in shaping, is provided. A guide wire includes a core shaft having a maximum diameter in a cross section orthogonal to an axial direction of the core shaft and an orthogonal diameter in a direction orthogonal to a direction of the maximum diameter, the core shaft includes a first specific portion located on a distal end side of the core shaft and having an oblateness between 7% and 35%, where oblateness is defined as the difference between the maximum diameter and the orthogonal diameter divided by the maximum diameter. The first specific portion of the core shaft can be 5 mm or more in the axial direction.
Claims6
A guide wire comprising:
- a core shaft having a maximum diameter in a cross section orthogonal to an axial direction of the core shaft and an orthogonal diameter in a direction orthogonal to a direction of the maximum diameter in the cross section,
- the core shaft including a first specific portion located on a distal portion of the core shaft and having an oblateness of between 7% and 35%,
- wherein:
- the first specific portion extends 5 mm or more in the axial direction;
- oblateness is equal to a difference between the maximum diameter and the orthogonal diameter divided by the maximum diameter;
- the core shaft further includes a tapered portion adjacent to a tip of the first specific portion, the tapered portion having a gradually-changing oblateness;
- the core shaft includes a second specific portion located closer to a distal end of the core shaft than the first specific portion, the second specific portion having the oblateness of 40% or more and a length;
- and
- the first specific portion having a length that is longer than the length of the second specific portion.
Dependencies are inferred from the claim text.