公开(公告)号：US20210100433A1

公开(公告)日：2021-04-08

申请号：US17083431

申请日：2020-10-29

Applicant: OLYMPUS CORPORATION

Inventor： Takaaki TATEBAYASHI ,  Seisuke TAKASE ,  Naohiro NAKAMURA

IPC: A61B1/00

Abstract: A distal end hood that is detachably mounted on a distal end portion of an endoscope includes a groove having a groove bottom portion formed in a ring shape over an entire circumference at a predetermined position on an outer peripheral surface of the distal end hood, a plurality of projections, which are provided on an inner peripheral surface on one side sandwiching the groove and in each of which a tapered surface is formed, the tapered surface reducing a wall thickness by continuously increasing a diameter of an inner peripheral surface from the groove side toward a distal end surface of the distal end hood, and a locking portion provided on a side opposite to the projections sandwiching the groove and locked to the distal end portion of the endoscope, in which the projections are configured to bend at the groove bottom portion toward a proximal end side.

公开(公告)号：US20170150873A1

公开(公告)日：2017-06-01

申请号：US15429355

申请日：2017-02-10

Applicant: OLYMPUS CORPORATION

Inventor： Takaaki TATEBAYASHI

IPC: A61B1/00 ,  A61B1/005 ,  A61B1/12 ,  A61B1/05 ,  A61B1/06

CPC classification number: A61B1/00096 ,  A61B1/00091 ,  A61B1/0057 ,  A61B1/05 ,  A61B1/0676 ,  A61B1/07 ,  A61B1/126 ,  G02B23/24 ,  G02B23/26

Abstract: An endoscope is configured such that, at a distal end portion of an insertion portion, an objective lens is formed at a position protruded most in a distal end direction, a head top surface of a head top portion of an air/water feeding nozzle is formed at a position protruded in the distal end direction, and then two (first and second) illumination portions 29a, 29b are formed at a position protruded in the distal end direction.