公开(公告)号：US11042020B2

公开(公告)日：2021-06-22

申请号：US16035916

申请日：2018-07-16

Applicant: OLYMPUS CORPORATION

Inventor： Takanori Watanabe ,  Hiromasa Okano ,  Takashi Ito

IPC: G02B23/24 ,  A61B1/00 ,  A61B1/12

Abstract: An endoscope including an elongated insertion section; a side observation window that includes a tapered part on a side circumference intersecting in a longitudinal axis direction of the insertion section, a circumferential side surface formed in a cone shape; and a cleaning nozzle that includes an opening through which liquid cleaning the circumferential side surface of the side observation window is ejected. The opening is inclined to direct an ejection direction of the liquid toward a distal end of the tapered part. A center position of the opening part of the cleaning nozzle is provided on a proximal end side with respect to a center position of the side observation window in the longitudinal axis direction.

公开(公告)号：US20180084983A1

公开(公告)日：2018-03-29

申请号：US15819498

申请日：2017-11-21

Applicant: OLYMPUS CORPORATION

Inventor： Hiromasa Okano ,  Jin Ito ,  Takanori Watanabe ,  Kento Hashimoto ,  Takeo Suzuki

IPC: A61B1/12 ,  A61B1/06 ,  A61B1/05 ,  A61B1/008

Abstract: An endoscope of the invention includes: an insertion portion; a distal end portion; a pair of first observation image acquiring sections; a second observation image acquiring section; a pair of nozzles, each of which includes a spouting port for spouting fluid toward each of the pair of first observation image acquiring sections; a pair of first protruding portions, each of which is located close to the front surface of the distal end portion and has a maximum dimension in the radial direction larger than a dimension in the radial direction of each of the nozzles, and a pair of second protruding portions, each of which is located farther from the front surface of the distal end portion and has a maximum dimension in the radial direction larger than the dimension in the radial direction of each of the nozzles.

公开(公告)号：US10799103B2

公开(公告)日：2020-10-13

申请号：US15819498

申请日：2017-11-21

Applicant: OLYMPUS CORPORATION

Inventor： Hiromasa Okano ,  Jin Ito ,  Takanori Watanabe ,  Kento Hashimoto ,  Takeo Suzuki

IPC: A61B1/12 ,  A61B1/00 ,  A61B1/06 ,  A61B1/008 ,  A61B1/05

Abstract: An endoscope of the invention includes: an insertion portion; a distal end portion; a pair of first observation image acquiring sections; a second observation image acquiring section; a pair of nozzles, each of which includes a spouting port for spouting fluid toward each of the pair of first observation image acquiring sections; a pair of first protruding portions, each of which is located close to the front surface of the distal end portion and has a maximum dimension in the radial direction larger than a dimension in the radial direction of each of the nozzles, and a pair of second protruding portions, each of which is located farther from the front surface of the distal end portion and has a maximum dimension in the radial direction larger than the dimension in the radial direction of each of the nozzles.

公开(公告)号：US11317784B2

公开(公告)日：2022-05-03

申请号：US16788358

申请日：2020-02-12

Applicant: OLYMPUS CORPORATION

Inventor： Keisuke Takada ,  Hiromasa Okano ,  Kazuki Honda

IPC: A61B1/00 ,  A61B1/06 ,  A61B1/12

Abstract: An endoscope includes an insertion portion; a first projecting portion; a second projecting portion; an illumination window disposed on an outer peripheral surface side of the first projecting portion, the illumination window being disposed about an axis along a longitudinal axis direction of the insertion portion, the illumination window having a light emitting surface from which an illumination light for illuminating an inside of a subject is emitted in a direction which includes a sideward direction of the insertion portion; and a mask configured to restrict sideward emission of the illumination light from the illumination window, wherein the mask has a shape inclined with respect to the longitudinal axis direction so as to increase a quantity of the illumination light emitted toward the second projecting portion from a distal end side toward a proximal end side of a distal end portion of the insertion portion.