JPS60103931A - Washer of endoscope pipeline - 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 [Technical Field of the Invention] The present invention relates to an endoscope duct cleaning tool for cleaning the inside of a duct built into an endoscope.

[Background technology and its problems]

In general, endoscopes are equipped with various pipes for selectively supplying air, water, or suction. Therefore, when cleaning the endoscope after use, not only the outer surface of the endoscope must be cleaned.

It is also necessary to thoroughly clean the inside of each pipe. However, conventionally, as shown in Utility Application No. 55-84443, the method of cleaning the inside of the pipes is to connect a cleaning liquid injection tube to a cap provided at one end of each pipe, and to connect the pipes of the endoscope. The switching valve is switched, and then pressurized cleaning liquid is sent from the end of the above-mentioned pipes into each pipe using a dedicated pump. It is not possible to selectively supply cleaning liquid to the Therefore, since the air supply pipe and water supply pipe on the insertion part side, which are particularly susceptible to dirt, are significantly thinner than the suction pipe, most of the cleaning liquid flows into the suction pipe. Sometimes the roads could not be cleaned thoroughly. For this reason, air and water supply failures such as clogging of the air and water supply nozzles at the tips occur due to insufficient cleaning.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to easily eliminate clogging of the tip nozzle by selectively sending cleaning liquid only to the air supply pipe and water supply pipe on the insertion section side. An object of the present invention is to provide a cleaning tool for cleaning an endoscope channel.

[Summary of the invention]

The present invention is designed to watertightly attach a removable piston body to a cylinder body after removal, and to supply cleaning liquid so that it communicates only with the air supply and water supply pipes on the side of the insertion section connected to the cylinder body. This is an endoscope channel cleaning tool that is equipped with a piston body having a liquid feeding hole and a sealing material, and can powerfully feed cleaning liquid only when there is a failure in air or water feeding on the insertion section side.

[Examples of actual rights to inventions]

Hereinafter, the first practical example of the present invention will be explained based on Figures 1 to 8.

FIG. 1 shows an endoscope to be cleaned in this practical example. This endoscope main body 1 has an insertion section 3 having a distal end component 2.
．． The operating section 41 is connected to the base end of the insertion section 3, and the universal cord 5 is connected to the operating section 4. An air supply pipe line 8 and a water supply pipe line 9 are connected to the insertion part 3, the external part 4, and the universal cord 5 in the endoscope main body I via an air and water supply switching valve 7 provided in the operation part 4. is installed.

One end of the air supply pipe line 8 is connected to an external air pump (not shown), and the other end passes through the universal cord 5 to the cylinder of the air/water supply switching valve 7.

an upstream air supply pipe section 8a connected to the body 10, and a downstream air supply pipe section 8 communicating with the tip nozzle II that passes through the insertion section 3 from the cylinder body IO and opens at the tip structure section 21.
It consists of b. The water pipe 9 also includes an upstream water pipe section 9a that passes through the universal cord 5 and is connected to the cylinder body IO to introduce water from the outside, and an upstream water pipe section 9a that passes through the universal cord 5 and is connected to the cylinder body IO to introduce water from the outside.
It consists of a downstream air supply pipe section 9b that passes through the insertion section 3 from O and communicates with the distal end nozzle I2 that opens in the distal end forming section 2.

As shown in FIG. 2, the switching valve 7 includes a bottomed cylindrical cylinder body XO with its open end facing outside, and this cylinder body 1.
A male thread I3 is formed on the outer periphery of the open end of the cylinder body IO, and a flange portion 14 is formed below the male thread I3. The wall 4a of the operating portion 4 is inserted between the flange portion I4 and the cylindrical spring receiving member 15 screwed onto the male screw I3, and is fixed to the operating portion 4. Further, on the side wall of the cylinder body 10, an upstream water supply pipe section 9a and a downstream water supply pipe section 9b are arranged at equal intervals from the open end (upper part) side.
.

Each end of the downstream side air supply pipe line 8b and the upstream side air supply line section 8a are connected, and each open end thereof opens into the inside of the cylinder body 10. On the other hand, the piston body 12 is provided with a flange 16 for spring contact at the upper end, and a flange I is provided on the outer periphery of the fitting portion.
The first sealing member 77 consisting of an O-ring is sequentially installed from the 6th side.
゜The second seal member I8 and the third seal member I9 are fitted. Further, a water conveying groove 20 is provided on the outer periphery of the insertion portion and is located between the first seal member 17 and the second seal member I8. Further, this piston body I2 is provided with a leak hole 2I that passes through the piston body I2 in its axial direction. A coil spring 22 is inserted between the spring receiving member I5 and the spring contact flange X6, and this coil spring 22 supports the piston body I2 in the second
When placed in the biased position in the standby state shown in the figure, it assumes its natural length. Further, when in this standby position, the third sole member I9 is connected to the downstream air pipe section 8b and the downstream water pipe section 9.
The second sole member I8 is located between the upstream water pipe section 9a and the downstream water pipe section 9b, and between the upstream air pipe section 8a and the downstream water pipe section 9b. Air supply pipe section sb
, and the leak hole 2I are in communication with each other. on the other hand,
The height of the spring receiving member I5 is such that when the piston body 12 is pushed in against the biasing force of the coil spring 22 and the spring abutting flange 16 is drawn on the head 23 of the spring receiving member 15, the height is the third height. The piston body 12 is arranged at a position as shown in the figure. At this time, the third seal member 19 is placed between the upstream air supply pipe section 8a and the downstream air supply pipe section 8b.
The second seal member I8 is located between the downstream air supply pipe section 8b and the downstream water supply pipe section 9b, and the water supply groove 20 is located at a position where the upstream water supply pipe section 9a and the downstream water supply pipe section 9b communicate with each other. I'm coming.

FIG. 4 shows that the piston body I2 and the spring receiving member I5 are removed together with the coil spring 22 from the air/water supply switching valve 7.
The cleaning tool main body 26 is attached to the remaining male thread I3 of the cylinder body 10, and a syringe-type injector 4I, which will be described later, is connected to a fitting member provided on the cleaning tool main body 26, which will be described later. . As shown in FIG. 5, this cleaning is performed by the cleaning tool main body 26. It consists of a fitting member 27 and a knob member 28. The cleaning tool main body 26 consists of a cylindrical fixed ring 29 screwed into the cylinder body 1-0 (7) male screw I3, and a spring receiving cylinder 30 screwed and connected to the outer periphery of the upper end of this fixed ring 29. 29 is formed with a flange 3I that corresponds to the outer end of the cylinder body 10, and the spring receiving tube 3o is provided with a flange 3 for spring contact.
2 is formed. Further, the fitting member 27 is fitted into the cylinder body IQ from the outside in a watertight manner, and the above-mentioned knob member 28 is screwed and connected to the outer end of the fitting member 27 to form an integral body. Furthermore, a first sealing member 33, a second sole member 34, and a third sealing member 35, each made of an O-ring, are fitted onto the outer periphery of the fitting member 27 in order from the knob member 28 side. A circumferential groove 36 is formed in the peripheral wall located between the second seal member 34 and the third seal member 35. And the fitting member 27
The liquid feeding hole 37 formed along the axial direction in the circumferential groove 3
6 to the circumferential surface of the fitting member 27. Also,
A flange 38 is formed at the outer end of the fitting member 27, and a coil spring 39 is inserted between this flange 38 and the spring abutting flange 32.
7 in the insertion direction. On the other hand, the above-mentioned knob member 2
8 is an injection hole 4oh (formed) communicating with the liquid feeding hole 37, and the outer end opening of this injection hole 40 is formed in a tapered shape according to JI8 standard.

The above-mentioned injection m41 is inserted by fitting.

Further, the outer end of the knob member 28 is provided with a sideward protrusion (f).
fli! A pair of pins 42.degree. 42 are provided as determining members, and on the other hand, the upper end of the spring receiving tube 30 is provided with the pins 42.degree.
A pair of slot grooves 4J and 43 are cut out according to the installation interval of the grooves 42.

Then, each pin 42.4 is inserted into each slot groove 43.43.
At the first locking position (the state shown in FIG. 5) where 2 is depressed, the fitting member 27 is fitted the most, and its flange 38 is attached to the fixed ring 29.
It is positioned against the flange 3K of. Moreover, in this state, the circumferential groove 36 of the liquid feeding hole 37 coincides with and communicates with the connection opening end of the upstream air feeding pipe section 8b, and
The connection opening ends of the other conduit sections tia, 9a, and gb are watertightly closed by first to third seal sections M33r''+35.
As shown in the figure, the fitting member 27 is pulled up against the biasing force of the coil spring 39 and rotated 180 degrees to be locked to the upper end surface 44 of the spring receiver cylinder 30 at the second locking position. As shown in the figure, the circumferential groove 36 corresponds to the connection opening end of the lower end side water supply pipe 9b and communicates with the liquid supply hole 37. In addition, at this time, each connection opening end of the other conduit sections 8a, 8b, and 9a is connected to the first to third seal members 33, 34° 35
It is designed to be watertightly closed.

Incidentally, the slotted grooves 43° 43 and the upper end surface 44 which are locked at each locking position of the pins 42° 42 as positioning members function as (i+) as determining portions, respectively.

Next, a method of using the above cleaning tool will be described.

First, from the switching valve 7 to the piston body 10. Spring receiving member I5
and coil spring 22 are removed, and the remaining cylinder body 1
The cleaning tool main body 26 is attached to the male screw 13 of 0. A syringe 41 prefilled with cleaning fluid is then connected to the grip member 28 as shown in FIG. And first,
As described above, the fitting member 27 is set at the first locking position shown in FIG. 5, and the piston portion of the syringe 4I is pushed in, thereby sending the cleaning liquid therein into the liquid feeding hole 37. The sent cleaning liquid passes through the circumferential groove 36 and flows into the downstream air supply pipe section 8b to clean the inside thereof.

At this time, since the air is not sent to the other conduit sections Ha, ga, and 9b, only the downstream air supply conduit section 8b can be strongly cleaned. After cleaning the downstream air supply pipe section 8b, the fitting member 27 is set in the second locking position shown in FIG. 6 using the method described above. Then, when the cleaning liquid is similarly sent in by the syringe 4I, the cleaning liquid flows only into the downstream water supply pipe 9b and cleans the inside thereof. Therefore, only the downstream side water supply pipe 9b can be strongly cleaned.In this way, sufficient cleaning pressure is applied only to the insertion part 3 side, which is particularly heavily contaminated, that is, only the lower end side air supply pipe 8b or the downstream side water supply pipe 9b. Wash the clothes, their insides, especially the tip nozzles 11 and 12.
You can clear the blockage.

It is also possible to carry out the same procedure as above by filling the syringe 4I with a disinfectant solution instead of the cleaning solution, but it is also possible to eliminate the poison.

FIG. 9 shows a second embodiment of the invention. The endoscope to which this embodiment is applied is of a type in which the air supply pipe section 8b and the water supply pipe section 9b on the downstream side (insertion section side) are combined into one, and this type of endoscope is conventionally known. Yes (Jikko 58-
(See Publication No. 18883). As shown in FIG. 9, as a cleaning tool applied to this, there is no need to select the upper or lower position of the fitting member 27, and it is sufficient to determine one fitting position.

Therefore, this fitting member 27 is connected to the threaded portion 51 of the operating section 4.
It is designed to be screwed into place. How to use it will be clear from what has been described above.

10 and 11 show a third embodiment of the invention. The only difference from the first embodiment is that one end side surface of the slotted groove 43 is inclined.

The pins 42 and 42 are also provided with an inclined surface 52 for slidingly guiding them. Therefore, when switching from the first locking position to the second locking position, it is possible to raise the knob member 28 by simply rotating it and easily move the pin 42, 42 to the second locking position. . Furthermore, notch recesses 53, 53 are formed in the upper end portion of the spring receiving tube 30 where the pin 42 is located in the second locking position, so that the pin 42 is securely held in the second position. ing.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to select the air and water supply pipe section on the insertion section side and send liquid to only this section for cleaning, so sufficient cleaning pressure can be obtained and that part, which is particularly prone to dirt, can be cleaned. Can be washed thoroughly.

Furthermore, clogging of the tip nozzle can be effectively eliminated. Furthermore, it can be easily and conveniently cleaned without using a large-scale pump or the like.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of an endoscope to which the first embodiment of the present invention is applied, FIGS. 2 and 3 are sectional views of the switching valve, and FIG. 4 is a diagram of how the cleaning tool is attached. (A side view of the shim, FIGS. 5 and 6 are sectional views of the cleaning tool attached, FIGS. 7 and 8 are perspective views of the locking position switched state, and FIG. 10 and 11 are perspective views of the locking positioning part in the third embodiment of the present invention. 3... Insertion part, 7... Switching valve, 8... Air supply pipe line, 9... Water supply pipe line, 10... Cylinder body, 11.
12... Nozzle % 27... Fitting member, 33, 34
．． 35... Seal member, 37... Liquid feeding hole, 42...
... Pin, 43 ... Slit groove, 44 ... Upper end surface, 5
3...4 parts. Applicant's representative Patent attorney Atsushi Tsuboi No. 2, Figure 4] "-1 m-10-7 Fifth cause: Kazuo Wakasugi, Commissioner of the Patent Office 1. Indication of the case Patent application No. 1982-211899 2 Invention Name of Endoscope Operator D'& Cleaning Tool 3, Relationship with the Person Who Makes Correction Case
, agent (i, details of the amendment δ 7, contents of the amendment) amend "Upper Mi, Itl'l J" in the 8th ladle of page 11 to "Lower l□, f side". (2) "Lower 91h; side" in the 18th line of the 11th line and the 14th line of the 13th line [lower II: corrected to t 1tJl-1.

Claims (4)

[Claims] (1) A cylinder body that connects the air and water supply pipes on the insertion section side of the endoscope and the air and water supply pipes on the light source side and opens outside the operation part of the endoscope, and The above-mentioned air supply of an endoscope is made up of a piston body that is removably inserted, and air and water can be supplied by operating the piston body. A cleaning tool for cleaning a water supply pipe includes a fitting member that can be fitted tightly into the cylinder body from the outside, and one end of which is opened outside the cleaning tool, and a connection opening for air supply and water supply pipes on the insertion section side. A liquid feeding hole whose other end is open at a certain position, and a liquid feeding hole in which at least one pipe on the insertion section side facing the liquid feeding hole is watertightly isolated from other pipes. A cleaning tool for an endoscope conduit, comprising a sealing member provided on the fitting member and located beside the open end tube of the use hole. (2) If it fits in the cylinder body in a watertight manner (
A cylindrical cleaning tool coupling having a fitting member having an IN determining member, a spring biasing the fitting member in the direction of fitting into the cylinder body, and a positioning portion for engaging the positioning member. a liquid feeding hole formed in the fitting member and having one end opened to the outside of the cleaning tool and the other end opened to the side where the air and water feeding pipes are located on the insertion section side; and this liquid feeding hole. The positioning part receives the positioning member which is brought into contact with the biasing force of the spring, and the liquid feeding hole is connected to the connection opening of the air supply conduit on the insertion section side. The first locking position corresponds to the end and the second locking position corresponds to the opening end of the water supply pipe connection on the insertion section side. A cleaning tool for an endoscope conduit according to claim 1. (3) The endoscope conduit cleaning tool according to claim 2, wherein the positioning portion is provided with an inclined surface for slidingly guiding the positioning member between the steps thereof. (4) At least one of the first locking position and the second locking position in the positioning portion, a step is provided at both ends of the locking position such that the elastic energy of the spring is higher than that at the locking position. An endoscope conduit cleaning tool according to claim 2, characterized in that: