JPS58133230A - Washing apparatus of wire guide tube in endoscope - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cleaning device for cleaning a wire guide tube of an endoscope.

Conventionally, the operation wire for operating the forceps elevator in an endoscope has been guided through a wire guide tube, but the tip of this wire guide tube is opened to the outside in the elevator chamber at the tip of the insertion section. Therefore, during use, mucus or dirt in the body cavity enters the wire guide tube through the opening and solidifies, resulting in the inconvenience that the operating wire cannot move. Moreover, since the proximal rear end of the upper wire guide tube is closed, it has been impossible to clean and disinfect the inside of the endoscope together with the endoscope.

Therefore, a tube body that opens to the outside and is closed by a fitting body is connected to the proximal end of the wire guide tube, and the intangible part of the tube body is removed to perform cleaning and disinfection. Alternatively, it is conceivable to connect the air/water supply pipe of the endoscope to the wire guide pipe via a switching valve, and switch the switching valve as appropriate to supply water or air for cleaning.

However, with this method, the structure of the endoscope itself becomes complicated, and the work of cleaning and disinfecting the endoscope becomes troublesome.

The present invention has been made in view of the above circumstances, and its purpose is to simplify the structure of the endoscope itself, and to easily and reliably clean the wire guide tube of the endoscope. An object of the present invention is to provide a cleaning device for a wire guide tube in an endoscope.

Hereinafter, each embodiment of the present invention will be described based on the drawings.

FIG. 1 shows a first embodiment of the present invention, in which an endoscope 1 includes an operating section 2 and a flexible insertion section 3. As shown in FIG. An observation window 5 facing toward the side is provided at the distal end 4 of the insertion portion, and an objective optical system 6 is installed inside the observation window 5. Further, the front end surfaces of the image guides 7 are disposed to face each other with the objective optical system 6 interposed therebetween. This image guide 7 is guided to the operating section 2 through the insertion section 3,
It is optically connected to the eyepiece section 8 of the operating section 2.

Furthermore, an opening 9 is formed in the insertion portion distal end 4 as a double chamber located ahead of the observation window 5 and opening toward the side. Inside this opening 9, a lifting stand 11 for raising the protruding direction of the forceps or the like is installed so as to be rotatable about a support shaft 12. Additionally, the tip of an operating wire 13 is connected to the rotating end of the raising table 11, so that by pushing and pulling the operating wire 13, the raising table 11 can be rotated as appropriate.

The operating wire 13 is guided by a wire guide tube 14 inserted through the operating section 2 and the insertion section 3, and its base end is connected to a lifting operation device 15 in the operating section 2. Further, the tip of the wire guide tube 14 is opened into the opening 9, and the base end of the wire guide tube 140 is connected to the operating section 2.
It is open to the outside. That is, both the distal end and the proximal end of the wire guide tube 14 are open to the outside of the endoscope 1.

By the way, the raising operation device 15 is made up of a rack 16 to which the operation wire 13 is connected and a pinion 17 that moves the rack 16 in the front and rear directions, and the pinion 12 is rotated by an operation body (not shown).

Furthermore, this endoscope 1 has an insertion channel 18 for inserting forceps or the like across the operation section 2 and insertion section 3.
is installed. The distal end of this insertion channel 18 opens into the opening 9, and the proximal end thereof communicates with an insertion port 19 that opens to the outside in the operation section 2.

The insertion port 19 projects outward, and an injection pipe, which will be described later, can be connected thereto.

On the other hand, the cleaning device #21 for cleaning the wire guide tube 14 of the endoscope 1 is configured as follows. That is, this cleaning device 21 consists of a cap-shaped closing member 22 that fits over the insertion section tip 4 and an injection pipe 23, and the closing member 22 has a function as a lid that closes the opening 9. . In addition, the outer circumferential wall of the insertion portion distal end 4 and the closing member 22
In order to prevent fluid from leaking between the closing member 22 and the inner peripheral wall thereof, a ring-shaped hooking 24 is provided on the inner peripheral wall of the closing member 22.

Further, an inlet 25 is provided in the fi11 wall of the closing member 22 so as to communicate with the opening 9, and an injection i9 tube 23 can be connected to the inlet 25.

On the other hand, the injection ie f23 is the inlet port 25 of the closing member 22.
It is divided into a first pipe section 26 connected to the insertion port section 19 and a second pipe section 27 connected to the insertion port section 19.
It is designed to be supplied to

Next, the operation of the cleaning device 21 will be explained.

First, the closing member 22 is attached to the insertion section tip 4 of the endoscope 1 after use.
and connect the first 79-tube portion 26 of the injection pipe f23 to the inlet port 25.

Furthermore, the second pipe section 27 of the nine-way injection tube 23 is connected to the insertion port section 19. Then, high-pressure cleaning fluid is pumped from a fluid device (not shown) through the injection pipe f23f.

As a result, the cleaning liquid flows from the first pipe 126 into the opening 9, and from the second pipe f27 flows into the insertion channel 1.
The cleaning liquid flows into each of the holes 8 and reaches the opening 9 through the insertion channel 18. The high-pressure cleaning liquid that has flowed into the opening 9 in this manner flows into the wire guide tube 14 from the tip opening of the wire guide tube 14, and flows out through the wire guide tube 14 from the opening on the operating section 2 side. That is, the cleaning liquid is forced to flow into each of the insertion channel 18, the opening 9, and the wire guide tube 14. Therefore, their interiors can be cleaned. Therefore, in particular, when using the endoscope 1, even if mucus or dirt in the body cavity that has entered through the opening 9 of the insertion section distal end 4 has entered the distal end of the wire guide tube 14 and adhered thereto, it can be cleaned reliably. can. Therefore, it is possible to prevent mucus and dirt that have entered the wire guide tube 14 from solidifying and obstructing the movement of the operating wire 13 by leaving them as they are without being able to be cleaned.

Note that when disinfecting after cleaning, disinfectant solution or disinfectant gas may be injected through the injection port 23 in the same manner.

FIG. 2 shows a second embodiment of the invention. In this embodiment, once the inlet is provided in the closing member 31, the cleaning liquid is supplied only through the injection pipe f32'f connected to the insertion port 19 of the endoscope 1. Therefore, in this embodiment, the cleaning liquid flows sequentially through the insertion channel 18, the opening 9, and the wire guide tube 14, thereby cleaning each part thereof. Note that disinfection can also be performed in the same manner.

FIG. 3 shows a third embodiment of the invention. In this embodiment, the closing member 22 in the first embodiment is used as is, and the injection pipe ff is not connected to the insertion opening 19 of the endoscope 1, but a closing member f is connected to the insertion opening 19 of the endoscope 1. 41 f. When cleaning, insert the insertion opening 19 into the casso 41.
Cleaning can be performed by injecting high-pressure cleaning liquid into the wire guide tube 14 only through the inlet port 25 of the closing member 22 through the entire opening 9.

As described above, the present invention allows the inside of the wire guide tube to be easily and reliably cleaned without requiring any special configuration of the endoscope itself.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a first embodiment of the invention, FIG. 2 is a sectional view showing a second embodiment of the invention, and FIG. 3 is a sectional view showing a third embodiment of the invention. It is. 1... Endoscope, 9... Opening, 1... Elevating platform,
13... Operation wire, 14... Wire guide tube, 15
... Lifting operation device, 21... Cleaning device, 22...
Closing member, 23... Pie for injection! , 25... Inlet port, 26... First pie f ridge 27... Second pipe section, 31... Closing member, 32... Injection pipe, 4...
...Chara 7″0 Applicant's agent Patent attorney Takehiko Suzue 9-Continued from page 1 (Inventor Oshima layer 2-43-2 Hatagaya, Shibuya-ku, Tokyo) Lymphus Optical Industry Co., Ltd. 0 shots Author: Hisao Yabe, 2-43-2 Hatagaya, Shibuya-ku, Tokyo, Japan Inventor: Katsunaga Konoshima, 2-43-2 Hatagaya, Shibuya-ku, Tokyo, Japan Inventor: Katsunaga Konoshima, 2-43-2 Hatagaya, Shibuya-ku, Tokyo, Japan Author: Hideki Shimonaka, 2-43-2 Hatagaya, Shibuya-ku, Tokyo (79) Inventor: Fumiaki Ishii, 2-43-2 Hatagaya, Shibuya-ku, Tokyo (79 years old), located at Lynpus Optical Industry Co., Ltd.

Claims (1)

[Claims] An opening provided at the tip of the insertion section for installing an elevator, an operating wipe for operating the elevator, and an operating wire that is inserted through it and guided to the operating section, with its tip opening in the opening on the proximal side. A cleaning device for completely cleaning the wire guide tube of an endoscope having a wire guide tube whose proximal end is opened to the outside, comprising: a closing member for closing an opening at the distal end of the insertion section; and an injection pipe for causing cleaning fluid to flow into the opening, and when the opening is completely closed by the closing member, the injection pipe is communicated with the wire guide tube so that the cleaning fluid can be fully injected under pressure. A cleaning device for wire guide tubes in endoscopes with all the features.