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Bonded structure of endoscope

A technology for endoscopes and adhesives, applied in the fields of endoscopes, telescopes, medical science, etc., can solve problems such as adhesive leakage

Active Publication Date: 2021-01-08
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] Therefore, when the adhesive is pushed in by using the step of the cylindrical body, the adhesive may leak from the front end of the cylindrical body in the longitudinal direction just after pushing in, as in the past.

Method used

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  • Bonded structure of endoscope
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  • Bonded structure of endoscope

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0034] figure 1 It is a perspective view showing an outline of the structure of an endoscope having the adhesive structure of the present embodiment.

[0035] Such as figure 1 As shown, the main parts of the endoscope 1 include: an elongated insertion portion 2 that can be inserted into a subject; an operation portion 4 ; a universal cable 30 ; and a connector 32 .

[0036] The insertion part 2 includes a front end part 10, a bending part 12 and a rigid pipe part 14 in order from the front end side in the longitudinal direction N to form its main part, wherein the bending part 12 can be bent in multiple directions, and the pipe part 14 is for insertion. The part 2 is elongated in the longitudinal direction N. That is, the endoscope 1 of the present embodiment is constituted by a rigid endoscope having a hard insertion portion 2 .

[0037] The operation part 4 is connected to the root end of the pipe part 14 in the longitudinal direction N. A rotatable operating rod 18 and ...

no. 2 approach

[0071] Figure 5 It is a partial cross-sectional view showing the outline of the bonding structure of the endoscope according to this embodiment.

[0072] The bonding structure of the endoscope of the second embodiment is the same as the above-mentioned Figure 1 ~ Figure 3 Compared with the adhesive structure of the endoscope of the first embodiment shown, the difference lies in that the second inner diameter portion of the cylindrical body is composed of a ring movable in the longitudinal direction, and the ring is moved in the longitudinal direction by the urging member. Front side push.

[0073] Therefore, only this point of difference will be described, and the same reference numerals will be assigned to the same components as those in the first embodiment, and description thereof will be omitted.

[0074] Such as Figure 5 As shown, in this embodiment, the second inner diameter portion 62 is formed as a ring 62d movable in the longitudinal direction N on the inner per...

no. 3 approach

[0082] Figure 6 It is a partial sectional view showing the outline of the bonding structure of the endoscope according to this embodiment, Figure 7 is along Figure 6 A cross-sectional view of the front end hard part of line VII-VII, Figure 8 is along Figure 6 A cross-sectional view of the cylindrical body on the line VIII-VIII.

[0083] The bonding structure of the endoscope of the third embodiment is the same as the above-mentioned Figure 1 ~ Figure 3 Compared with the bonding structure of the endoscope of the first embodiment shown, the difference lies in that: on the outer periphery of the embedded part of the front end hard member, there is formed along the longitudinal direction a hole that can be arranged on the inner periphery of the cylindrical body. Grooves into which protrusions fit.

[0084] Therefore, only this point of difference will be described, and the same reference numerals will be assigned to the same components as those in the first embodiment, ...

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PUM

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Abstract

Provided is an endoscope comprising: a rigid tip part 50 having a first outer diameter portion 51a and a second outer diameter portion 51b, the second outer diameter portion 51b having a first lengthA; a cylindrical body 60; a first inner diameter portion 61 having a second length B; a second inner diameter portion 62 having a smaller diameter than the first inner diameter portion 61; and an adhesive 70 filled between an outer periphery 51g and an inner periphery 60n. The outer diameter of the outer periphery 51g of the second outer diameter portion 51b decreases toward the base end N2. The cylindrical body 60 fits over the outer periphery 51g while being pressed against a tip end N1.

Description

technical field [0001] The present invention relates to an adhesive structure of an endoscope in which a cylindrical body is fitted by bonding on the outer periphery of a shaft. Background technique [0002] In recent years, endoscopes have been widely used in medical and industrial fields. The endoscope used in the medical field can observe the organs in the body cavity by inserting the elongated insertion part into the body cavity of the subject, or can use the treatment provided by the endoscope as needed. Various treatments are performed through the treatment equipment in the equipment insertion channel. [0003] In addition, for endoscopes used in the industrial field, by inserting the elongated insertion part of the endoscope into the subject body such as a jet engine or factory piping, it is possible to perform damage and corrosion of the test site in the test subject. Observation and inspection of various treatments. [0004] Among endoscopes, so-called flexible e...

Claims

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Application Information

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IPC IPC(8): G02B23/24A61B1/00
CPCA61B1/0008G02B23/2423G02B7/025A61B1/0011
Inventor 阴山直启藤井崇晴
Owner OLYMPUS CORP
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