Unlock instant, AI-driven research and patent intelligence for your innovation.

endoscope

A technology for endoscopes and insertion parts, applied in the field of endoscopes, can solve problems such as obstructing observation, and achieve the effect of reducing the diameter

Inactive Publication Date: 2016-04-27
OLYMPUS CORP
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the endoscope is inserted into the pericardial cavity, body fluids such as blood may adhere to the observation optical system and hinder observation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • endoscope
  • endoscope
  • endoscope

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0043] Now, an endoscope 1 according to a first embodiment of the present invention will be described with reference to the drawings.

[0044] Such as figure 1 As shown, the endoscope 1 according to this embodiment includes an elongated insertion portion 11 that can be inserted into a body cavity such as a pericardial cavity and is configured such that the insertion portion 11 is inserted into the body cavity along a guide wire 20 .

[0045] Such as figure 2 As shown, the endoscope 1 according to this embodiment is a direct-view endoscope for observing a field of view in the frontal direction. Such as figure 2 As shown, on the top end surface of the insertion portion 11 , an irradiation optical system 12 that irradiates illumination light to a subject, an observation optical system 13 that collects light from the subject, and a channel portion 14 through which the guide wire 20 is inserted are provided.

[0046] Such as image 3 As shown, the observation optical system...

no. 2 approach

[0058] Next, an endoscope according to a second embodiment of the present invention will be described with reference to the drawings. Hereinafter, with respect to the endoscopes of the respective embodiments, the same points as those of the above-described embodiment are denoted by the same reference numerals and descriptions thereof will be omitted, and different points will be mainly described.

[0059] Such as Figure 5 to Figure 7 As shown, instead of the sealing portion 15 having the insertion hole 17 of the endoscope 1 of the first embodiment, the endoscope 2 according to this embodiment includes a sealing portion (closed components) 21.

[0060] The sealing part 21 is made of elastic body such as rubber, and the guide wire 20 is inserted through the cross-shaped cutout 22, and the cutout is closed when the guide wire 20 is not inserted.

[0061] Using this construct, such as Figure 6 As shown, when the guide wire 20 is inserted through the sealing portion 21 (channe...

no. 3 approach

[0067] Next, an endoscope according to a third embodiment of the present invention will be described with reference to the drawings. Such as Figure 8 to Figure 10 As shown, the endoscope 3 according to this embodiment includes a check valve (closing member) 23 that can open and close the channel portion 14 at a position between the sealing portion 15 and the branch portion 19 14.

[0068] Such as Figure 8 As shown, the check valve 23 includes a valve body 24 having a larger inner diameter than the passage portion 14 and a pivot shaft 25 fixed to the valve body 24 and provided rotatably in a direction perpendicular to the axis of the passage portion 14 . Specifically, the check valve 23 is configured such that the valve body 24 pivots about the pivot shaft 25 .

[0069] The valve body 24 is pivotable toward the base end side of the insertion portion 11 and is prevented from pivoting toward the tip end side of the insertion portion 11 by the wall surface of the passage port...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An endoscope having a reduced diameter of an insertion portion and capable of cleaning an observation optical system in a state where a guide wire is inserted. An endoscope (1) includes: an elongated insertion part to be inserted into a body cavity; an observation optical system (13) at the tip of the insertion part to collect light from a subject; a channel part (14) along the insertion The length direction of the part is formed, the fluid flows through the channel part, and the guide wire (20) is inserted through the channel part; the sealing part (15), which is in the channel part (14), is inserted into the channel part when the guide wire (20) The sealing part (15) seals the gap between the channel part (14) and the guide wire (20) in the state of (14); and the opening part (16), which is on the base end side of the sealing part (15) to Fluid flowing through the channel portion (14) is discharged toward the observation optical system (13).

Description

technical field [0001] The present invention relates to an endoscope. Background technique [0002] There are known methods of inserting a guide wire into a body cavity, inserting an end of the guide wire disposed outside the body from a channel of an endoscope, and inserting the endoscope into the body cavity along the guide wire. According to this method, the guide wire can easily reach the inner side of the organ, whereby the endoscope can be inserted into the inner side of the organ along the guide wire. [0003] When the endoscope is inserted into the pericardial cavity, body fluid such as blood may adhere to the observation optical system to hinder observation. In order to solve this problem, conventionally, an endoscope including a cleaning channel (and a cleaning nozzle) for cleaning the observation optical system is known (for example, see Patent Document 1). In this endoscope, a balloon inflated in the cleaning channel prevents dirt from entering the cleaning cha...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A61B1/00
CPCA61B1/00091A61B1/00119A61B1/015A61B1/018A61B1/126A61B1/01A61B1/012
Inventor 冈崎善朗
Owner OLYMPUS CORP