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公开(公告)号：US20160309994A1
公开(公告)日：2016-10-27
申请号：US15135519
申请日：2016-04-21
Applicant: FUJIFILM Corporation
Inventor： Toshiharu KUWAE , Takeshi YUKIIRI
Abstract: Cleaning performance or wiping performance for an observation window is improved in an endoscope. In a distal end face of a distal end part of the endoscope, a guide part rising to a distal end side is provided between an observation window and a fluid injection nozzle. A width of the guide face of the guide part has a narrowed part, and a portion with the narrowest width serves as a fluid guiding part. The fluid guiding part guides fluid passing through a position of the fluid guiding part, in fluid injected from the fluid injection nozzle, to a first fluid route through which the fluid is guided to the observation window. Fluid deviated from the fluid guiding part is guided to a region adjacent to the observation window through a second fluid route.
Abstract translation: 在内窥镜中改善观察窗的清洁性能或擦拭性能。 在内窥镜的前端部的前端面中，在观察窗和流体喷射喷嘴之间设置有上升到前端侧的引导部。 导向部分的引导面的宽度具有变窄的部分，并且具有最窄宽度的部分用作流体引导部分。 流体引导部分引导流体从流体注入喷嘴注入的流体通过流体引导部分的位置到第一流体路径，流体被引导到观察窗口。 从流体引导部分偏离的流体通过第二流体路线被引导到与观察窗口相邻的区域。
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公开(公告)号：US20240081620A1
公开(公告)日：2024-03-14
申请号：US18358971
申请日：2023-07-26
Applicant: FUJIFILM Corporation
Inventor： Takuro ASAOKA , Takeshi YUKIIRI
CPC classification number: A61B1/00096 , A61B1/012 , A61B1/051 , A61B1/0669
Abstract: Provided is an endoscope with a narrower diameter at a distal end portion of an insertion part to be inserted into a body of a subject.
The endoscope includes: a forceps port; and an imaging unit, in which the forceps port and the imaging unit are disposed side by side at a distal end of the endoscope, the imaging unit includes an imaging lens, an imaging element having a light-receiving surface disposed parallel to an optical axis of the imaging lens, an optical element that bends the optical axis of the imaging lens by 90° to make light that has transmitted through the imaging lens incident on the imaging element, and a holder that holds the imaging lens and the optical element, a forceps pipe connected to the forceps port is disposed on a light-receiving surface side of the imaging element, in a case in which the imaging unit is viewed in a first direction perpendicular to the light-receiving surface of the imaging element, a central axis of the imaging element that passes through a center of an outer shape of the imaging element and is parallel to the optical axis is located closer to a forceps port side than the optical axis is, a part of the forceps pipe connected to the forceps port overlaps the light-receiving surface of the imaging element, and a central axis of the forceps pipe is located outside the imaging element. On a plane that passes through the optical axis and is parallel to the light-receiving surface, a part farthest from the optical axis is opposite to the central axis of the imaging element with respect to the optical axis in a case in which the imaging unit is viewed in the first direction.-
公开(公告)号：US20190090723A1
公开(公告)日：2019-03-28
申请号：US16120318
申请日：2018-09-03
Applicant: FUJIFILM Corporation
Inventor： Koichi TANAKA , Takeshi YUKIIRI
Abstract: An endoscope of the invention has a first surface constituting a distal end surface of the insertion part, a second surface formed on a projecting part projecting from the first surface to a front side, and an observation window provided on the second surface. The first surface has a fluid jetting nozzle, a first protective projection, and a second protective projection. The projecting part has an extending part extending from the observation window toward a side opposite to the fluid jetting nozzle. In all combinations of imaginary planes capable of coming into contact with, from the front side, at least two of the fluid jetting nozzle, the first protective projection, the second protective projection, and the extending part, the imaginary planes are disposed forward of the observation window.
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