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endoscope

An endoscope and component technology, applied in the direction of endoscope, application, mechanical equipment, etc., can solve the problem of thickening of the diameter of the connecting part, and achieve the effect of suppressing damage to the tube and reliable assembly

Active Publication Date: 2015-12-09
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] However, according to the method disclosed in the aforementioned Japanese Patent Laid-Open No. 9-229258, since the split ring is interposed between the fastening tool and the tapered portion, there is a problem that the diameter of the connecting portion becomes thicker.

Method used

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Effect test

no. 1 Embodiment approach

[0030] Figure 1 to Figure 7 It is a figure which shows 1st Embodiment of this invention. in, figure 1 It is an overall perspective view showing the overall configuration of the endoscope according to the first embodiment of the present invention. figure 2 It is a cross-sectional view showing the internal structure of the operation unit in the endoscope according to the present embodiment. image 3 is enlarged figure 2 An enlarged cross-sectional view of the main part of a part (near the connection site between the treatment instrument through channel and the branch member). Figure 4 It is a perspective view showing only the tapered tube applied to the endoscope of this embodiment. Figure 5 Yes Figure 4 Cutaway view of a tapered tube. Image 6 Yes Figure 5 The front view of the conical tube observed from the direction of arrow [6]. Figure 7 It is a cross-sectional view of the channel tube in the treatment instrument layer applied to the endoscope of this embodim...

no. 2 Embodiment approach

[0066] In the above-mentioned first embodiment, an example was shown in which the outer peripheral shape of the tapered tube 26 was made into a shape that is easy to hold with a tool or the like. On the other hand, in the second embodiment of the present invention described below, efforts are made to prevent the tapered pipe from rotating itself. which is, Figure 8 It is a cross-sectional view of a tapered tube applied to an endoscope according to a second embodiment of the present invention. The basic structure of the endoscope of this embodiment is substantially the same as that of the above-mentioned first embodiment, and only the structure of the tapered tube is different. Therefore, in the following description of the second embodiment, only components different from those of the above-mentioned first embodiment will be described in detail. In addition, illustration and description of the same structure as that of the above-mentioned first embodiment are omitted, but w...

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Abstract

The invention has an object to provide an endoscope which has a structure for preventing an increase in a diameter of a connection region between a channel tube and a connection member, avoiding damage on the tube without interfering with assemblability, and enabling secure assembly. To this end, the endoscope includes a tube having a single layer structure or a laminated structure made up of a plurality of layers, a branching member that branches a tubular path in an endoscope operation section and has a tube connection section to which the tube is connected, a channel locking member that sandwiches the tube with the tube connection section to thereby fix the tube to the branching member in close contact, and a fastening member that presses and brings into close contact the tube sandwiched between the tube connection section and the channel locking member, in which the channel locking member is formed so as to have a tapered portion that covers an outer circumference of the tube and have at least one flat surface on an outer circumferential face of the tapered portion.

Description

technical field [0001] The present invention relates to a connection structure of tubes arranged in an operating portion of an endoscope. Background technique [0002] In the past, an endoscope composed of an insertion part and an operation part is practically used. The insertion part is provided with observation components such as an imaging element and an ultrasonic vibrator at the distal end, and is formed in an elongated tubular shape. The operation part and the insertion part The base end is connected and has various operating components. Among such endoscopes, various medical endoscopes are further practically used and popularized. The medical endoscopes are configured to insert the insertion portion into the body cavity of a living body such as a patient, and obtain The observation image is used to observe a site such as a lesion in the body cavity of a living body, and to perform various inspections, treatments, and the like for the site. [0003] Conventional endo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B1/00
CPCA61B1/018A61B1/0011A61B1/00128A61B1/015F16L19/0243F16L47/04F16L47/32
Inventor 竹内泰雄
Owner OLYMPUS CORP