公开(公告)号：US20240358974A1

公开(公告)日：2024-10-31

申请号：US18765980

申请日：2024-07-08

Applicant: OLYMPUS CORPORATION

Inventor： Takuo ENDO ,  Tomofumi KATAYAMA

IPC: A61M25/06 ,  A61B1/018 ,  A61B8/12 ,  A61B17/34 ,  A61F2/966 ,  A61M25/09 ,  A61M27/00

CPC classification number: A61M25/06 ,  A61B1/018 ,  A61B8/12 ,  A61B17/3403 ,  A61F2/966 ,  A61M25/09 ,  A61M27/002 ,  A61B2017/3413 ,  A61M2025/0681

Abstract: The present invention relates a puncture needle includes: a sheath having a longitudinal axis; a needle tube that is arranged inside the sheath to be moved along the longitudinal axis and that has a needle tip; and a protective tube that is arranged inside the needle tube to be moved along the longitudinal axis and that has a lumen into which a guide wire is inserted. The needle tube has a step portion formed at a position midway along the needle tube. The protective tube has a protrusion, which protrudes radially outward, on an outer peripheral surface thereof at a position midway nearer a proximal end side of the protective tube than the step portion is. A distal end of the protective tube is positioned at a position to protrude from the distal end of the needle tube when the protrusion abuts the step portion.

公开(公告)号：US20210162181A1

公开(公告)日：2021-06-03

申请号：US17148799

申请日：2021-01-14

Applicant: OLYMPUS CORPORATION

Inventor： Takuo ENDO ,  Tomofumi KATAYAMA

IPC: A61M25/06 ,  A61B1/018 ,  A61M25/09 ,  A61B17/34 ,  A61F2/966 ,  A61B8/12

Abstract: The present invention relates a puncture needle includes: a sheath having a longitudinal axis; a needle tube that is arranged inside the sheath to be moved along the longitudinal axis and that has a needle tip; and a protective tube that is arranged inside the needle tube to be moved along the longitudinal axis and that has a lumen into which a guide wire is inserted. The needle tube has a step portion formed at a position midway along the needle tube. The protective tube has a protrusion, which protrudes radially outward, on an outer peripheral surface thereof at a position midway nearer a proximal end side of the protective tube than the step portion is. A distal end of the protective tube is positioned at a position to protrude from the distal end of the needle tube when the protrusion abuts the step portion.