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Endoscope curving device

A bending device, endoscope technology, applied in endoscopes, telescopes, medical science and other directions, can solve the problems of needing folding chain space, influence, inability to fully absorb the relaxation of the operating wire, etc., and achieve the effect of effective absorption

Active Publication Date: 2015-03-11
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to restrictions on the design of the operating part, the lengthwise dimension of the connecting part between the operating wire and the trunk line is limited.
Therefore, the slack of the operating wire cannot be sufficiently absorbed
[0012] In addition, in the case of a structure in which the slack of the operation wire is absorbed by folding the chain connected to the operation wire, a space for folding the chain is also required.
Therefore, it is affected by the restriction on the design of the operation part

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach ）

[0049] refer to Figure 1 ~ Figure 7B The first embodiment of the present invention will be described.

[0050] figure 1 It is a figure which shows the structure of the endoscope 1. The endoscope 1 includes an elongated insertion portion 2 inserted into a body cavity, and an operation portion 3 connected to the proximal direction side of the insertion portion 2 . One end of a universal cord 4 is connected to the operation unit 3 . The other end of the universal cable 4 is connected to an image observation device, a lighting power supply device (both not shown), etc. via an endoscope connector 5 .

[0051] The insertion part 2 includes: a hose part 6 that is elongated and flexible; a curved part 7 that is connected to the distal direction side of the hose part 6; Orientation side position. Bend 7 to the left and right direction ( figure 1 Arrow A direction) and up and down direction ( figure 1 in the arrow B direction) to perform bending movements. By combining the dire...

no. 2 Embodiment approach ）

[0082] Next, refer to Figure 8 ~ Figure 11B A second embodiment of the present invention will be described. In this embodiment, the configuration of the bending device 15 of the first embodiment is changed as follows. In addition, the same code|symbol is attached|subjected to the same part and the part which has the same function as 1st Embodiment, and description is abbreviate|omitted.

[0083] Figure 8 ~ Figure 9B It is a figure which shows the structure of the 1st pulley 41A and the 1st rotating cylindrical part 25A of the bending apparatus 40 of this embodiment. In addition, in the following description, the first pulley 41A and the first rotating cylindrical portion 25A are described, but the second pulley 41B and the second rotating cylindrical portion 25B are also related to the first pulley 41A and the first rotating cylindrical portion. Shaped portion 25A is the same.

[0084] Such as Figure 8 ~ Figure 9B As shown, the first pulley 41A includes a substantially...

no. 3 Embodiment approach ）

[0110] Next, refer to Figure 12 ~ Figure 15B A third embodiment of the present invention will be described. In this embodiment, the configuration of the bending device 15 of the first embodiment is changed as follows. In addition, the same code|symbol is attached|subjected to the same part and the part which has the same function as 1st Embodiment, and description is abbreviate|omitted.

[0111] Figure 12 ~ Figure 13B It is a figure which shows the structure of the 1st pulley 101A and the 1st rotating cylindrical part 25A of the bending apparatus 100 of this embodiment. In addition, in the following description, the first pulley 101A and the first rotating cylindrical portion 25A are described, but the second pulley 101B and the second rotating cylindrical portion 25B are also related to the first pulley 101A and the first rotating cylindrical portion. 25A is the same.

[0112] Such as Figure 12 ~ Figure 13B As shown, the first pulley 101A has a pulley body 102 that is...

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Abstract

An endoscope bending device includes an operation wire which includes a wire proximal end movably provided in an inner peripheral groove of a pulley, and a wire distal end connected to a bending section, the operation wire extending into an endoscope insertion section after being wound around an outer peripheral groove or the inner peripheral groove in a neutral condition in which the bending section is not bent. The endoscope bending device includes a slack absorbing portion which is configured to absorb the slack of the operation wire by moving the wire proximal end of the operation wire in the inner peripheral groove in a direction opposite to a discharging direction of the operation wire during the operation of discharging the operation wire from the neutral condition.

Description

technical field [0001] The present invention relates to an endoscope bending device that bends a bending portion of an insertion portion of an endoscope in a desired direction by performing a bending operation using a bending operation portion of an operation portion of the endoscope. Background technique [0002] Generally, an endoscope has an elongated insertion portion inserted into a body cavity, and an operation portion provided on the proximal side of the insertion portion. The insertion part includes: a hose part which is elongated and flexible; a bending part which is provided on the tip side of the hose part and is used for bending; Top direction side position. In addition, the endoscope is provided with an endoscope bending device for bending the bending portion. [0003] The endoscope bending device has a bending operation part such as a bending operation knob arranged on an operation part housing of the operation part. The bending operation unit is connected t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B1/00G02B23/24
CPCA61B1/0057A61B1/0052
Inventor 中出俊彦松浦伸之谷井好幸
Owner OLYMPUS CORP