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Endoscope bending section and endoscope

A technology for endoscopes and bending parts, applied in the field of endoscope bending parts and endoscopes, can solve the layout restrictions in the cross-sectional direction, multi-lumen tubes limit the movable direction, various channels, lighting components, and camera unit configurations Issues such as location restrictions

Active Publication Date: 2019-12-06
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the bending part of the conventional endoscope that uses a multi-lumen tube, since the multi-lumen tube itself cannot mechanically limit the movable direction, the insertion position of the bending operation wire is limited to a specific position.
[0005] In this way, when the position of the bending operation wire is limited to a specific position, there is a problem that the arrangement positions of various channels, lighting components, imaging units, etc., which are other components provided in the multi-lumen tube are restricted.
Therefore, with regard to the curved portion for reducing the diameter of the insertion portion of the endoscope, there is a problem that the layout in the cross-sectional direction is restricted when arranging various components in the curved portion.

Method used

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  • Endoscope bending section and endoscope
  • Endoscope bending section and endoscope
  • Endoscope bending section and endoscope

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Embodiment Construction

[0024] Next, preferred embodiments of the present invention will be described with reference to the drawings. In each drawing used in the following description, in order to make each constituent element a recognizable size in the drawing, the scale may be different for each constituent element, and the present invention is not limited to those described in these drawings. The number of constituent elements, the shape of the constituent elements, the ratio of the size of the constituent elements, and the relative positional relationship of each constituent element. In the following description, the upper and lower parts of the constituent elements may be described in the up-and-down direction when viewed toward the paper surface of the drawings.

[0025] First, one embodiment of the present invention will be described with reference to the drawings.

[0026] Next, a schematic configuration of an endoscope according to a first embodiment of the present invention will be describ...

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Abstract

An endoscope bending section 7 is provided with: two lumens 31, 32 formed from a multi-lumen tube and in which a pair of bending operation wires 27, 28 for bending along a first direction U and a second direction D opposite to the first direction U are individually inserted; and bending direction restricting members 41, 42 provided on a second axis LR orthogonal to a first axis UD passing througha central axis X along the first direction U and the second direction D, the bending direction restricting members 41, 42 restricting bending in the direction of the second axis LR.

Description

technical field [0001] The present invention relates to an endoscope curved portion and an endoscope using a multi-lumen tube at least in a curved portion of an insertion portion. Background technique [0002] In order to cope with various observation objects, the endoscope has an insertion portion formed in an elongated tubular shape corresponding to the observation object and capable of being inserted into a lumen. It is known that the insertion portion of this endoscope is provided with a curved portion for adjusting the direction of the observation field of view. [0003] Such a curved portion of an endoscope is disclosed in, for example, Japanese Patent Application Laid-Open No. 8-94941. In the bending portion of the endoscope disclosed in Japanese Patent Application Laid-Open No. 8-94941, a multi-lumen tube is used as a bending member in order to reduce the cost and reduce the diameter of the bending portion. [0004] However, in the bending part of the conventional ...

Claims

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Application Information

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IPC IPC(8): A61B1/005G02B23/24
CPCG02B23/24A61B1/0057
Inventor 安久井伸章
Owner OLYMPUS CORP