Wire member

Patent metadata

Field	Value
Publication number	US-2018014899-A1
Application number	US-201515523289-A
Country	US
Kind code	A1
Filing date	Nov 2, 2015
Priority date	Nov 4, 2014
Publication date	Jan 18, 2018
Grant date	—

Abstract

A wire member that exhibits an excellent sliding property is provided.
A wire member 1 includes: a core member 2 that has an elongated shape; and a surface-disposed member 3 that is spirally disposed on a surface of the core member 2 so as to leave predetermined spaces along a longitudinal direction of the core member 2 . In a cross-sectional view taken along the axis of the core member 2 , the front end and the rear end of each of projections 3 A formed by the surface-disposed member 3 respectively form contact angles θ 1, θ2 each being 5° or greater relative to the surface of the core member 2.

First claim

1 . A wire member comprising:
a core member that has an elongated shape; and a surface-disposed member that is spirally disposed on a surface of the core member so as to leave predetermined spaces along a longitudinal direction of the core member, wherein in a cross-sectional view taken along an axis of the core member, a front end and a rear end of each of projections formed by the surface-disposed member each form a contact angle of 5° or greater relative to the surface of the core member.

2 . The wire member according to claim 1 , wherein the contact angle is 65° or smaller.

3 . The wire member according to claim 1 , wherein in a cross-sectional view taken along the axis of the core member, the projections on other side with reference to the core member are disposed so as to oppose to space regions each formed between the projections disposed on one side with reference to the core member.

4 . The wire member according to claim 3 , wherein in a cross-sectional view taken along the axis of the core member, a vertex of each of the projections on other side with reference to the core member is disposed so as to oppose to substantially a center of corresponding one of the space regions in an axial direction of the core member.

5 . The wire member according to claim 3 , wherein in a cross-sectional view taken along the axis of the core member, a surface of the core member at the space regions is substantially parallel to the axis of the core member.

6 . The wire member according to claim 1 , wherein in a cross-sectional view taken along the axis of the core member, an angle formed between a tangent at an arbitrary point on a surface of each of the projections and the axis of the core member gradually becomes small from the front end of each of the projections to the vertex of each of the projections.

7 . The wire member according to claim 1 , wherein in a cross-sectional view taken along the axis of the core member, an angle formed between a tangent at an arbitrary point on the surface of each of the projections and the axis of the core member gradually becomes small from the rear end of each of the projections to the vertex of each of the projections.

8 . The wire member according to claim 1 , wherein in a cross-sectional view taken along the axis of the core member, a tangent at the vertex of each of the projections and the axis of the core member are substantially parallel to each other.

9 . The wire member according to claim 1 , wherein the surface-disposed member is made of a fluorine-based polymer material.

Assignees

• Gunze Kk

Inventors

• Kuroda Kouji
• Kawahara Makoto

Classifications

• A61M2025/09108

  Methods for making a guide wire · CPC title

• A61B90/11 Primary

  with guides for needles or instruments, e.g. arcuate slides or ball joints · CPC title

• D07B1/06

  Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core · CPC title

• A61M25/09 Primary

  Guide wires · CPC title

• A61M2025/09083

  having a coil around a core · CPC title