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Bending operation mechanism of endoscope

An operating mechanism and endoscope technology, applied in endoscope, medical science, diagnosis, etc., can solve the problems of configuration position limitation, smaller traction amount of traction wire, influence of movement amount, etc.

Pending Publication Date: 2022-05-13
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] However, if the operation unit of the endoscope is to be miniaturized, the arrangement position of the two pulleys in the operation unit will be restricted in the structure in which the connection portion of the suction button is arranged in the region between the two pulleys.
[0021] Therefore, depending on the arrangement position and angle, it will adversely affect the amount of movement of the pull wire accompanying the tilting of the control lever.
[0022] Specifically, there is a problem that the pulling force of the pull wire becomes large and the tilting operation of the control lever becomes heavy, or the pull amount of the pull wire becomes small even if the control lever is tilted by the same angle as before.

Method used

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  • Bending operation mechanism of endoscope
  • Bending operation mechanism of endoscope
  • Bending operation mechanism of endoscope

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Experimental program
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Embodiment Construction

[0040] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0041] figure 1 It is a front view showing the appearance of an endoscope equipped with a bending operation mechanism according to this embodiment, figure 2 From figure 1 II direction observation in figure 1 The side view obtained by the endoscope, image 3 From figure 2 III direction observation in figure 2 A partial top view of the endoscope.

[0042] also, Figure 4 is along figure 1 of the IV-IV line in the figure 1 A cross-sectional view of the distal end portion and the bending portion of the insertion portion of the endoscope, Figure 5 is along Figure 4 A cross-sectional view of the front end portion of the line V-V, Figure 6 is roughly shown in the figure 1 A perspective view of the bending operating mechanism inside the operating section of .

[0043] and, Figure 7 is zoomed in Figure 6 A perspective view of the bending operating mechanism,...

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PUM

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Abstract

The present invention is provided with an operation lever (45), a wire traction part (54), traction wires (23a, 23b), a cylinder (43), and pulleys (68a, 68b), and a prescribed rotation shaft (71) of the pulleys (68a, 68b) is disposed obliquely such that an extension line of the prescribed rotation shaft (71) intersects with the cylinder (43).

Description

technical field [0001] The present invention relates to a bending operation mechanism of an endoscope having an operation lever that can tilt freely in a predetermined direction. Background technique [0002] In recent years, endoscopes have been widely used in medical and industrial fields. An endoscope can observe a site to be examined in a subject by inserting an elongated insertion portion into the subject. [0003] In addition, there is known a structure in which a bending portion is provided on the front end side of the insertion portion of an endoscope, and the bending portion can be actively and flexibly moved in any direction of the up, down, left, and right directions, or in a compound direction of two directions of the up, down, left, and right directions. Optional free bending. [0004] The curved portion improves the advanceability of the insertion portion at the flexed portion in the subject along with the bending, and in addition, it is possible to make the ...

Claims

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Application Information

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IPC IPC(8): A61B1/008
CPCA61B1/008A61B1/0057A61B1/0052
Inventor 籏野庆佑
Owner OLYMPUS CORP