Title:
GUIDE WIRE
Document Type and Number:
WIPO Patent Application WO/2018/135534
Kind Code:
A1
Abstract:
[Problem] To provide a guide wire which ensures flexibility and is capable of reducing pass-through resistance when passing through a lesion such as a constricted section. [Solution] A coil member 200 provided in a guide wire 10 has a first region 210, second region 220, and third region 230 located along the axial direction of a core wire 100 from the tip end to the base end thereof. The first region forms a first angled section exhibiting an increase in the outer contour thereof from the tip end toward the base end, by increasing the outer diameter of a first linear body 206 which forms the coil member in a direction from the tip end toward the base end. The second region forms a second angled section exhibiting a decrease in the outer contour thereof from the tip end toward the base end, by decreasing the outer diameter of the first linear body which forms the coil member in a direction from the tip end toward the base end. The boundary between the first and second regions forms the maximum outer contour section 240, at which the outer contour of the coil member is largest. The inner diameter d1 of the coil member in the first region is substantially identical to the inner diameter d2 of the coil member in the second region.
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Inventors:
TARUNAGA AKIHIKO (JP)
Application Number:
PCT/JP2018/001235
Publication Date:
July 26, 2018
Filing Date:
January 17, 2018
Export Citation:
Assignee:
TERUMO CORP (JP)
International Classes:
A61M25/09
Foreign References:
| JP2001212243A | 2001-08-07 | |||
| JP2007135645A | 2007-06-07 | |||
| JP2014100300A | 2014-06-05 | |||
| JP2017196368A | 2017-11-02 |
Attorney, Agent or Firm:
HATTA & ASSOCIATES (JP)
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