ENDOSCOPE PUNCTURE NEEDLE

WIPO Patent Application WO/2020/234919

A1

This endoscope puncture needle comprises a tube-like tubular portion, a first needle tip portion having a first needle tip at a distal end, and a second needle tip portion having a second needle tip at a distal end. The first needle tip portion includes a first blade face and a second blade face that extend toward the first needle tip, and the second needle tip portion includes a third blade face and a fourth blade face that extend toward the second needle tip. The first blade face, the second blade face, the third blade face, and the fourth blade face form an opening that communicates with an inner space of the tubular portion. In a front view seen from the direction along the axial direction of the tubular portion, the normal vectors of the first blade face and the third blade face in the distal end region point in the direction from one blade face toward the other blade face, and in the front view, the normal vectors of the second blade face and the fourth blade face in the distal end region point in the direction from one blade face toward the other blade face.

JP2003535622	Description: Barrett's Esophageal Cytology Device
WO/2003/020136	TISSUE BIOPSY APPARATUS
WO/2012/009250	BIOPSY NEEDLE ASSEMBLY

TSUBOTA MIHO (JP)
ETO HIROFUMI (JP)
MORISHITA HIROYUKI (JP)

PCT/JP2019/019665

November 26, 2020

May 17, 2019

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OLYMPUS CORP (JP)

A61B10/04

WO2012014773A1

2012-02-02

JP2016032630A	2016-03-10
US20180317895A1	2018-11-08

MATSUNUMA Yasushi et al. (JP)

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