公开(公告)号：US20220296089A1

公开(公告)日：2022-09-22

申请号：US17835210

申请日：2022-06-08

Applicant: OLYMPUS CORPORATION

Inventor： Keita MITSUHASHI ,  Tsukasa OTA ,  Takuto YOSHINAGA ,  Wataru MATSUURA ,  Motohiko SUZUKI

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

Abstract: An endoscope includes an image pickup module having an optical axis that defines a visual field direction and provided with an electric contact, a cable that is disposed on a proximal end side of the image pickup module and transfers an image pickup signal generated by the image pickup module, a channel provided beside the image pickup module, and a movable board electrically connecting the electric contact and the cable to transfer the image pickup signal and including a movable portion capable of forming a curved surface that is freely displaceable in an optical axis direction. The movable portion of the movable board is arranged at a position where a distance between the curved surface and the channel is longer than a distance between the curved surface and the optical axis.

公开(公告)号：US20220296078A1

公开(公告)日：2022-09-22

申请号：US17835190

申请日：2022-06-08

Applicant: OLYMPUS CORPORATION

Inventor： Motohiko SUZUKI ,  Takuto YOSHINAGA ,  Tsukasa OTA ,  Wataru MATSUURA ,  Keita MITSUHASHI

IPC: A61B1/005

Abstract: A bending operation mechanism includes a bending operation member configured to bend a bending portion, a wire pulling member configured to rotate along with rotation of the bending operation member, a lock operation member supported to a rotational axis, a cam member having a cam surface and integrally provided with the lock operation member, and a brake member having a cam follower surface capable of sliding relative to the cam surface. The cam member moves along with rotation of the lock operation member. The brake member moves in a direction in which a contact surface contacts a circumference of the wire pulling member as the cam follower surface slides on the cam surface in accordance with movement of the cam member.

公开(公告)号：US20220313063A1

公开(公告)日：2022-10-06

申请号：US17843464

申请日：2022-06-17

Applicant: OLYMPUS CORPORATION

Inventor： Motohiko SUZUKI ,  Takuto YOSHINAGA ,  Tsukasa OTA ,  Wataru MATSUURA ,  Keita MITSUHASHI

IPC: A61B1/005

Abstract: A bending operation mechanism for an endoscope, which is a pulley unit, includes: an up-down bending pulley which is a rotation body; an angle wire which is a bending-portion pulling member having a distal end side connected to a bending portion and a proximal end side that is pulled by the up-down bending pulley; and a spiral spring which is a slack absorption member having a first end connected to the an proximal end of the angle wire and a second end side connected to the up-down bending pulley and configured to pull the angle wire in the direction toward the up-down bending pulley.

公开(公告)号：US20230019357A1

公开(公告)日：2023-01-19

申请号：US17954683

申请日：2022-09-28

Applicant: OLYMPUS CORPORATION

Inventor： Keita MITSUHASHI ,  Tsukasa OTA ,  Takuto YOSHINAGA ,  Wataru MATSUURA ,  Motohiko SUZUKI

IPC: A61B1/005 ,  A61B1/00

Abstract: An endoscope includes a pulley provided in an operation portion, having an outer diameter larger than an inner diameter of an endoscope insertion portion, and configured to wind a wire connected to a bending portion; and a wire guard that is arranged to cover a predetermined range of an outer peripheral portion of the pulley, and includes a guide wall arranged to extend within a range of a radius of the pulley from a contact point position at which the wire in contact with the pulley is separated from the pulley in a longitudinal axis direction of the operation portion. The wire guard includes two members each formed in a substantially semicircular plate shape, and coupling parts formed in arc shapes extending from both end portions of the two members and configured to couple the two members.

公开(公告)号：US20220296077A1

公开(公告)日：2022-09-22

申请号：US17835237

申请日：2022-06-08

Applicant: OLYMPUS CORPORATION

Inventor： Keita MITSUHASHI ,  Tsukasa OTA ,  Takuto YOSHINAGA ,  Wataru MATSUURA ,  Motohiko SUZUKI

IPC: A61B1/005 ,  A61B1/00

Abstract: An insertion apparatus in the invention includes: a multi-lumen tube provided in an insertion portion and formed in a bendable manner, the insertion portion being inserted into a subject, a distal end member arranged so as to cover a distal end of the multi-lumen tube; a braided tube into which the multi-lumen tube is inserted, a distal end edge portion of the braided tube being disposed between the distal end member and the multi-lumen tube; and a wire configured to bend the multi-lumen tube by traction, in which the braided tube includes a gap through which the wire passes from an outside of the braided tube to an inside of the braided tube.