公开(公告)号：US20230113650A1

公开(公告)日：2023-04-13

申请号：US17960902

申请日：2022-10-06

Applicant: OLYMPUS CORPORATION

Inventor： Kazuya SASAGUCHI

IPC: A61B1/018 ,  A61B1/00

Abstract: An endoscope, comprising: an insertion portion insertable into an inside of a subject; an observation window provided in a distal end portion of the insertion portion; a liquid feeding channel extending through the distal end portion of the insertion portion; and at least one liquid feeding port. In operation, liquid exits the at least one liquid feeding port, and liquid exiting the at least one liquid feeding port is directed in a first direction away from the observation window and toward the inside of the subject.

公开(公告)号：US20230404378A1

公开(公告)日：2023-12-21

申请号：US18239296

申请日：2023-08-29

Applicant: OLYMPUS CORPORATION

Inventor： Kazuya SASAGUCHI ,  Soichi IKUMA ,  Eijiro SATO ,  Hiroki KAZUNO

IPC: A61B1/015 ,  A61B18/26 ,  A61B17/22

CPC classification number: A61B1/015 ,  A61B18/26 ,  A61B17/2202 ,  A61B2218/007 ,  A61B2017/22079

Abstract: An endoscope includes an insertion portion that is inserted into a subject, and a suction channel that suctions a liquid along with a crushed calculus. The suction channel includes a channel main body, which is inserted in the insertion portion, and a small-diameter channel portion that is provided on a distal end side of the channel main body and has an inner diameter smaller than an inner diameter of the channel main body. The suction channel is configured to satisfy the relational expression R1/R2>1.27, where R1 represents the inner diameter of the channel main body and R2 represents the inner diameter of the small-diameter channel portion.