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1. (WO2018220850) ENDOSCOPE PUNCTURE NEEDLE

Pub. No.:    WO/2018/220850    International Application No.:    PCT/JP2017/020691
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Sat Jun 03 01:59:59 CEST 2017
IPC: A61B 10/04
A61B 1/018
A61B 8/12
Applicants: OLYMPUS CORPORATION
オリンパス株式会社
Inventors: ENDO, Takuo
遠藤 琢朗
KATAYAMA, Tomofumi
片山 智文
Title: ENDOSCOPE PUNCTURE NEEDLE
Abstract:
In order to select the insertion direction of a guide wire after puncturing with a needle, the endoscope puncture needle (1) pertaining to the present invention is provided with a long tubular sheath (5) having a lumen (4) passing through in a longitudinal direction, and a tubular needle tube (6) inserted into the lumen (4) of the sheath (5) so as to be able to move along the longitudinal direction, the needle tube (6) being provided with an edge surface (7) inclined with respect to the longitudinal direction at the distal end thereof, the sheath (5) being provided with an inclined surface (9) inclined so as to approach the center axis progressively toward the distal end of the sheath (5) in a portion in the circumferential direction of an inner surface of the lumen (4) of a distal-end part of the sheath (5), and the distal end of the sheath (5) on the side thereof facing the inclined surface (9) with the lumen (4) therebetween in the radial direction being positioned further toward a proximal end than the distal end of the inclined surface (9).