公开(公告)号：US12035888B2

公开(公告)日：2024-07-16

申请号：US17151831

申请日：2021-01-19

Applicant: OLYMPUS CORPORATION

Inventor： Nobuaki Akui

IPC: A61B1/005 ,  A61B1/00 ,  A61B1/008 ,  A61B1/012 ,  A61B1/05 ,  A61B1/06 ,  A61B1/307

CPC classification number: A61B1/0057 ,  A61B1/00165 ,  A61B1/0052 ,  A61B1/008 ,  A61B1/012 ,  A61B1/05 ,  A61B1/0676 ,  A61B1/307

Abstract: An endoscope includes an insertion portion, an operation portion, a bending portion, a pair of wires inserted into the insertion portion and configured to bend at least part of the bending portion in a first direction and a second direction opposite to the first direction, a first pulling mechanism configured to pull and loosen the pair of wires, a linear member inserted into the bending portion, a second pulling mechanism configured to pull the linear member in a direction parallel to a central axis, and a holding portion configured to hold the linear member in the bending portion at a position decentered from a center in a third direction or a fourth direction.

公开(公告)号：US11992187B2

公开(公告)日：2024-05-28

申请号：US17122317

申请日：2020-12-15

Applicant: OLYMPUS CORPORATION

Inventor： Nobuaki Akui ,  Hidetoshi Saito

IPC: A61B1/00 ,  A61B1/005 ,  A61B1/018 ,  A61B1/06

CPC classification number: A61B1/0051 ,  A61B1/00087 ,  A61B1/018 ,  A61B1/0661

Abstract: An endoscope includes an insertion portion, a distal end rigid member, and a channel tube. The distal end rigid member is provided on a distal end side with respect to the bending portion of the insertion portion, and includes an illumination window, an observation window, and a treatment instrument opening. As the distal end rigid member moves relative to the bending portion in a distal end direction of a longitudinal axial direction, the distal end rigid member can change from a first state in which a distance between a proximal end surface of the distal end rigid member and a distal end surface of the bending portion is fixed to a first distance to a second state in which the distance is equal to a second distance longer than the first distance.

公开(公告)号：US11992189B2

公开(公告)日：2024-05-28

申请号：US17124866

申请日：2020-12-17

Applicant: OLYMPUS CORPORATION

Inventor： Nobuaki Akui

IPC: A61B1/005

CPC classification number: A61B1/0057 ,  A61B1/0055

Abstract: An endoscope includes: a first bending wire that is connected with a first connection part of a bending portion of an insertion portion inserted into a subject and bends the entire bending portion in a first bending direction by pulling; a second bending wire that is connected with a second connection part of the bending portion positioned on a proximal end side of the first connection part and bends a proximal end side part of the bending portion on the proximal end side of the second connection part in the first bending direction by pulling; an operation lever that pulls the first bending wire to the proximal end side; an operation lever that pulls the second bending wire to the proximal end side; and a coil pipe into which the first and second bending wires are inserted at a position on the proximal end side of the bending portion.

公开(公告)号：US11751756B2

公开(公告)日：2023-09-12

申请号：US17150422

申请日：2021-01-15

Applicant: OLYMPUS CORPORATION

Inventor： Nobuaki Akui

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

CPC classification number: A61B1/0057 ,  A61B1/0661

Abstract: An endoscope includes: an insertion section; an operation section; a bending portion; a longitudinal member for maintaining a constant distance from the operation section to a distal end portion of the insertion section along a longitudinal axis of the insertion section; and a flexible tube portion provided in a movable manner with respect to the operation section and the longitudinal member in a longitudinal axis direction, and making the bending portion extend and contract with movement of the flexible tube portion with respect to the operation section in the longitudinal axis direction.

公开(公告)号：US20220225858A1

公开(公告)日：2022-07-21

申请号：US17716135

申请日：2022-04-08

Applicant: OLYMPUS CORPORATION

Inventor： Nobuaki Akui

IPC: A61B1/00 ,  G02B23/24

Abstract: An endoscope of the present invention includes an endoscope insertion section in which a resin layer is formed in an outer circumference of a net-like pipe made of metal formed along a longitudinal axis and a conductive member, a part of one side edge portion of which pierces through the resin layer and comes into contact with the net-like pipe to conduct electricity, in which at the one side edge portion of the conductive member, a pointed portion that cuts a part of the resin layer and comes into contact with the net-like pipe is formed.

公开(公告)号：US10231605B2

公开(公告)日：2019-03-19

申请号：US15201703

申请日：2016-07-05

Applicant: OLYMPUS CORPORATION

Inventor： Nobuaki Akui

IPC: A61B1/00 ,  A61B1/005 ,  A61B1/04 ,  A61M25/01 ,  A61B1/015

Abstract: There is provided an endoscope capable of realizing equal operability by either a left or right hand without upsizing an operation portion. For this purpose, an operation portion is formed in a bilaterally symmetrical shape; a suction button and a bending lever are disposed at a center in a left and right width direction of the operation portion facing each other; and respective arm portions are disposed in a state of being rotated around a central axis of the bending lever by a predetermined angle relative to up, down, left and right tilt directions defined for the bending lever.