公开(公告)号：US12083298B2

公开(公告)日：2024-09-10

申请号：US17464930

申请日：2021-09-02

Applicant: TERUMO KABUSHIKI KAISHA

Inventor： Shinji Kondo

IPC: A61M25/09 ,  A61B17/34 ,  A61M29/00

CPC classification number: A61M25/09 ,  A61B17/3478 ,  A61M29/00 ,  A61M2025/09091 ,  A61M2025/09183

Abstract: A guide wire for guiding a dilator to be inserted into a living body includes: a flexible elongated shaft portion; a puncture portion at a distal end portion of the shaft portion to form a hole in biological tissue; and an elastically deformable cover portion covering the puncture portion. The cover portion includes a sparse pitch portion that has a wire member wound in a spiral shape and axially contractible, and a distal end cover located on a distal end side of the sparse pitch portion and covering at least a part of the puncture portion. The puncture portion includes a first contact portion. The distal end cover includes a second contact portion configured to contact the first contact portion from a proximal end side, so that relative axial movement of the first and second contact portions is restricted by the first contact portion contacting the second contact portion.