JPS61125321A - Apparatus for washing pipeline of 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 (Technical Field of the Invention) The present invention relates to an improvement in an endoscope duct cleaning device for cleaning the inside of an endoscope duct.

[Technical impropriety of inventions and their problems]

Endoscope duct cleaning devices are known for supplying cleaning liquid to various ducts such as air supply, water supply, and suction ducts of an endoscope to clean the various ducts after use.

These endoscope duct cleaning devices include a simple type that uses a syringe-like device as a liquid delivery means to send liquid to a mouthpiece connected to various ducts of the endoscope, and 1! Is it possible to use a dynamic pump as a means of feeding liquid in the same way? ! It is classified into two types: a type that sends cleaning liquid to the base of four mirrors;

By the way, it is known that there are differences in flow resistance and internal volume of the tubes depending on the shape of the tubes in an endoscope, but in the case of the above-mentioned simple type, the amount of liquid delivered in one operation is not that large. Therefore, if there is a difference in the internal volume of the pipes, there is a problem that the cleaning liquid will reach the one with the smaller volume, but will not be able to reach the one with the larger volume. For this reason, it is necessary to perform the liquid feeding operation intermittently many times in order to wash, which causes significant fatigue during washing, and also causes situations in which the simple type becomes meaningless in the long run. Ta. In addition, when using an electric pump to send cleaning liquid to a pipe, it is possible to send the cleaning liquid continuously, but if there is a difference in flow resistance between the pipes, it will flow only to the side with less resistance. The problem is that the cleaning liquid flows, but not so much on the side where the flow resistance is large. In other words, depending on the cleaning method, there are cases where the internal volume of the pipe has a large effect, and cases where the flow resistance has a large effect, and this point is a difficulty in cleaning performance.

[Purpose of the invention]

This invention was made in view of the above-mentioned circumstances, and its purpose is to improve the ability to clean the various ducts of an endoscope. An object of the present invention is to provide a Jiil pipe cleaning device.

[Summary of the invention]

That is, the present invention provides a control means for adjusting the flow rate of the cleaning liquid sent to each of the pipes, thereby supplying the cleaning liquid according to the flow resistance of the pipe and the internal volume of the pipe. .

[Embodiment of the Invention] The present invention will be described below based on a first embodiment shown in FIGS. 1 to 5. The first embodiment shows an application of the present invention to a simple type, and FIG. 2 shows an endoscope 1 to be cleaned, and FIG. 3 shows an endoscope 1 using a syringe-like device as a liquid feeding means. The J2 mirror pipe cleaning device 25 is shown.

First, the endoscope 1 will be described. Reference numeral 2 represents an operating section, 3 an insertion section connected to the operating section 2, and 4 a universal cord having a connector 4a connected to its tip. Further, 5 is an air supply conduit on the insertion section side inserted into the insertion section 3, 6 is a water supply conduit on the insertion section side, 7 is a suction conduit on the insertion section side, and 8 is an insertion section inserted into the operation section 1. Reference numeral 9 indicates a connector-side air supply line inserted into the universal cord 4, 10 indicates a connector-side water supply line, 11 indicates a connector-side suction line, and 12 indicates a connector-side gas line. The tips of the insertion section side air supply line 5, the insertion section side water supply line 6, and the suction line 11 each open at the distal end 3a of the insertion section 3, and the rear end of the connector side air supply line 9 is the water supply cap 13 provided on the side of the connector 4a.
The rear end of the connector-side water supply pipe 10 opens into the water supply pipe 13 of the connector 4a, and the connector-side suction pipe 11
The rear end opens to the suction cap 15 provided on the side of the connector 4a, and the rear end of the connector side gas pipe 12 opens to the connector 4a.
It opens into a gas mouthpiece 16 provided on the side of a. Note that the distal end of the gas pipe line 8 on the insertion part side is connected to the middle of the air supply pipe line 5 on the insertion part side. Further, in the operating section 2, a gas cylinder 19 (all of which corresponds to a mouthpiece) incorporating an air/water supply cylinder 17, a suction cylinder 18, and a valve lock structure 19a is provided in the negative row. The remaining ends of the air supply pipe line 9.5 and the water supply pipe line 10.6 are connected to the air and water supply cylinder 17, and the suction cylinder 18
The remaining ends of the suction pipe 11.7 are connected to each other, and the remaining ends of the gas pipes 12 and 8 are connected to the gas cylinder 19, respectively.
．． Suction cylinder 18. Operation buttons (none of which are shown) for operating the air/water supply piston, suction piston, and valve filter structure 19a are detachably attached to and combined with the seven flange portions 20 at the open end of one gas cylinder. This allows switching of air and water supply, switching of suction, and switching of CO2. Note that the midway of the insertion section side suction channel 7 is connected to a forceps port 21 provided in the operating section 2 via a forceps channel 22, so that a treatment tool such as forceps can be inserted. ing. Also,
23 is a 7-lung portion provided at the open end of the forceps mouth 22.

However, in Figure 2, the air and water supply piston, suction piston, and operation buttons are removed, and the endoscope 1 is
The suction pipe line 7.11 has a particularly large diameter, and the air and water supply pipe lines 5 and 6
, 9.10, it should be noted that the internal volume of the conduit is very large compared to .

Next, the endoscope pipe cleaning device 25 for cleaning the various pipes of the endoscope 1 will be described. Reference numeral 26 denotes a simple pump 27 and a syringe-shaped operating part 28 for operating the simple pump 27. 29 is a connector (corresponding to a connecting means) that can be freely connected to the air/water supply cylinder 17 and the suction cylinder 18, and 30 is a liquid supply pipe. The liquid feeding pipeline 30 is constructed by connecting long short tubes 32a and 32b to the branch II end of a Y-shaped branch pipe 31, and connecting a long tube 33 to the remaining end. configured.

On the other hand, as the simple pump 27, one shown in FIG. 4 is adopted. That is, in addition to integrally protruding a hub 35 on the rear outer periphery of the T-shaped syringe connector 34, a delivery mouthpiece 36 is provided at the tip opening, and a suction mouthpiece 37 is provided at the lower end opening. They are connected using screws 38, and check valves 39a and 39b are interposed between the delivery mouthpiece 36 and the end face of the syringe connection body 34, and between the suction mouthpiece 37 and the end face of the syringe connection body 34, respectively. .

A suction tube 41 having a filter portion 40 at its tip is connected to the suction cap 37, and a tapered syringe receiving portion with a Luer lock cap 42 formed at its tip is attached to the rear end surface of the syringe+1 connector 34. 43 are integrally protruded.

On the other hand, the operating section 28 is composed of a syringe 48 into which a biston 47 is slidably inserted. The tip of the syringe 48 is connected to the syringe receiving portion 43 and the Luer lock mouthpiece 42 to constitute the entire liquid feeding means 26. Now, to explain the check valves 39a and 39b, they are both made of a disc-shaped elastic body (such as silicone rubber) and a circular sleeve i as shown in FIG.
・A valve body 45 having a slit 44 is adopted, and a valve seat 46a is provided on the end face of the syringe connection body 34 on the side of the delivery outlet metal 36 so as to come into contact with the central surface section defined by the slit 44. The structure of the suction cap 37 is such that the suction cap 37 is similarly provided with a valve seat 46b. However, by pushing and pulling the piston 47 in the syringe 48, the cleaning liquid (general term for liquids required for cleaning, including medical solutions) 50 stored in the liquid tank 49 is transferred from the filter part 40 to the syringe connection body 34. Suction, sending money 3
6.

The rear end of the tube 33 is connected to the delivery port 36 of the liquid delivery means 26, and the connector 29 is connected to the tips of the tubes 32a and 32b, thereby forming the endoscope channel cleaning device 25. ing.

This connector 29 is provided with an adjustment means which is a main part of the present invention, and its structure and connector 29 are
The surrounding structure is shown in Figure 1.

First, the structure of the connector 29 will be explained.
55 is a main body formed in a rectangular plate shape from metal or plastic material, 56 is an air/water supply cylinder injection mouthpiece;
57 is a suction cylinder injection cap, and 58 is a gas cylinder stopper. The air/water cylinder injection cap 56 and the suction cylinder injection cap 57 each have a flange 59 on the upper end side, and a cap seat 61 having a flange 60 formed on the outer periphery is screwed onto the lower end side, and a flange 61 is screwed onto the outer periphery of the lower end. It is constructed by disposing a sealing member 62 to ensure water tightness and tightness.

The bodies of the air and water cylinder injection port 56 and the suction cylinder injection port 57 are fitted so as to be movable in a direction perpendicular to the plate surface of the main body 55.
It is attached between the lower surface of the cap 5 and the cap dust A by being biased downward by a spring 63. It should be noted that each air/water supply cylinder injection port 56 on which the sealing member 62 is disposed. The lower end of the suction cylinder injection port 57 is connected to the air and water supply cylinder 17. Needless to say, the outer shape is formed so that it can be inserted into and removed from the suction cylinder 18. The gas cylinder stopper 58 has a flange 64 at its upper end, and a protrusion 64a screwed into its lower end for opening the compensation groove 19a of the suction cylinder 18. The body of this gas cylinder stopper 58 is similar to the air and water cylinder inlet fitting 57 and the suction cylinder inlet fitting 58, and the main body 55
It is movably attached using a spring 65. In addition, 6
Reference numeral 8 denotes a seal member provided on the outer periphery of the protrusion 64a, and the spring 65 has a stronger biasing force than the spring 66 of the valve structure 19a.

Then, each of these air/water supply cylinder inlet fittings 56, suction cylinder inlet fittings 57. The gas cylinder stopper 58 is connected to the air and water supply cylinder 17° and the suction cylinder 18 of the endoscope 1.
In addition to being arranged in a straight line on the longitudinal center of the main body 55 at the same intervals and in the same arrangement as the gas caps 16, the main body 55
A box-shaped slider 67 is provided on the lower surface of the connector so as to wrap around each connector, thereby forming the two connectors as a whole. The tubes 32a and 32b of the liquid supply conduit 30 are connected to the bases of the air and water cylinder injection port 56 and the suction cylinder injection port 57 of the connector 29, respectively, and the cleaning liquid 50
can be supplied to the ducts of the endoscope 1, respectively. That is, here, the slider 67 is attached to the lower wall 67.
A through hole having a diameter larger than the diameter of the flange portion 20 of each cylinder 17, 18, 19 of the endoscope 1 is formed in each of the air and water supply cylinders 17, suction cylinder 18. In addition to being formed to correspond to the gas cap 16, the center of each of these through holes is formed with a flange portion 2.
A structure is used in which the air and water supply cylinders are communicated with each other through a slot portion having a diameter approximately the same as the diameter of the neck portion 20a of the slider 67, and each air/water supply cylinder injection port 56. Suction cylinder inlet fitting 57. Is the gas cylinder stopper 58 inside? J! lt
After inserting it into each cylinder 17° 18.19 of the slider 67, slide it so that the slot part of the slider 67 reaches the neck part 20a of the flange part 20, and the air/water supply cylinder injection cap 56 is locked by the locking of the connector 29. In addition to connecting the air and water supply cylinder 17 of the endoscope 1 and connecting the suction cylinder inlet fitting 57 to the suction cylinder 18 of the endoscope 1, the gas cylinder stopper 58 connects the valve mechanism 19a of the gas cylinder 19 of the endoscope 1. The valve mechanism 19 can be released by pressing while sealing.

The above-mentioned adjusting means for adjusting the flow rate of the cleaning liquid 50 is provided at the lower end side of the flow path 70 of each air/water supply cylinder injection port 56 and suction injection port 56. This regulating means includes an orifice 71a for restricting it to each flow path 70.

71b, and an orifice 7 on the side that communicates with the air and water supply pipes 5, 6.9.10, which have smaller internal volumes.
1a has a smaller diameter, and the flow rate is adjusted so that a large amount of cleaning liquid 50 can be supplied to the increased resistance valve and the suction pipes 7 and 11 with large internal volumes (the flow rate is adjusted by adjusting the flow rate of the orifice 71a on the air and water supply side). (opening of the suction side orifice 71b).

However, within the simple type configured like this? !
4 mirror duct cleaning! When refining the endoscope 1 using the device 25, first connect the bases of the air/water supply cylinder inlet fitting 56 and the suction cylinder inlet fitting 57 of the connector 29 to the tips of the tubes 32a and 32b.
A simple pump 27 is connected to the rear end, and a syringe 48 with a piston 47 is connected to the Luer lock mouthpiece 42 of the syringe connection body 34. ! Mirror pipe cleaning equipment fi
! Assemble 25. Thereafter, in addition to putting the tip of the suction tube 41 of the simple pump 27 into the polishing liquid 50 in the liquid tank 149, the connector 29 is connected to the air/water supply cylinder 17° and the suction cylinder 18. It is fixed to the gas cylinder 19 using a slider operation. As a result, as shown in FIG. This means that the gas cylinder 19 is sealed while keeping it open. From this state, by pushing and pulling the piston 47 of the syringe 48, the cleaning liquid 50 flows into the liquid feeding pipe 30.
and each air and water supply cylinder 17 via the connector 29
．． It is supplied to the suction cylinder 18. That is, in the simple pump 27, by pulling the piston 47, suction pressure is applied,
The check valve 39a on the side of the outlet fitting 36 closes, and the check valve 39b on the side of the suction fitting 37 opens, sucking in the cleaning liquid 50 through the filter 40, and by pushing the piston 47, the pressure causes the cleaning liquid 50 to be fed. As the reverse valve 39a on the outlet fitting 36 side opens, the check valve 39b of the suction cap 37 (IIII) closes, and the sucked cleaning liquid 50 passes through the air/water supply cylinder inlet cap 56 and suction cylinder suction cap 57 of the connector 29. The air is sent to each air/water supply cylinder 17 and suction cylinder 18.

As a result, the cleaning liquid 50 is sent into each of the air supply pipes 5 and 9 and the suction pipes 7 and 11, and also from the air supply pipe 5.
Opened bench! 119a to the gas pipes 8 and 12 to clean each pipe of the endoscope 111. This type of cleaning method depends on the size of the internal volume of the pipes of the endoscope 1. (Air and water supply pipes>suction pipes) will be greatly affected, and there is a concern that the advantages of the simple type, which are less labor and time, will be lost.

However, according to the invention, the orifice 71a.

71b is the frontage of the suction side orifice 71b which is opened by the air and water supply side orifice 71a, so that a large amount of cleaning liquid 50 is sent into the suction pipe line 7.11, which has a large internal volume. Therefore, the cleaning liquid 50 can be quickly distributed to the 11 tl internal tube (both the tube with a small internal volume and the tube with a large internal volume) by effectively using the limited amount of liquid sent at one time. This makes it possible to completely fill the inside of the pipe with the cleaning liquid 50. Therefore, not only can high cleaning performance be obtained, but the many liquid feeding operations that were previously required intermittently can be reduced, reducing fatigue during cleaning and eliminating the need to spend a lot of time on cleaning. , you can take full advantage of the features of the simple type.

In addition, in the first embodiment described above, the connector (connection means)
29 are provided with orifices 71a and 71b, and the cleaning liquid 50 is fed into the various pipes of the endoscope 1 from cylinders 17, 18 and 19, which are all provided in the operating section 2. As shown in FIG. 3, the branch pipe 31 constituting the liquid supply pipe line 30 is provided with orifices 71a and 71b whose openings are set according to the internal volume of the pipe, as in the first embodiment. Increase the overall length and connect the end to connector 2.
The cleaning liquid 50 may be sent to various pipes of the endoscope 1 by connecting the air supply cap 14 without connecting to the air supply pipe 9. At this time, the air/water cylinder injection port 56 connected to the air/water cylinder 17 is plugged watertightly, and the water injection port 1
3 is watertightly closed with a water supply spout plug 73 made of an elastic member.

In addition, instead of providing an orifice in the endoscope channel cleaning device, as shown in FIG. 75
In addition to providing an orifice 76 to adjust the flow rate, or by inserting a cylindrical member 77 with a liquid injection hole 77a in the center shown in the ninth factor into the water supply mouthpiece 13 and using it as a similar orifice 78, A flow adjustment means may be provided on the endoscope 1 side. Of course, it may be provided both on the endoscope 1 side and on the endoscope channel cleaning device.

Note that FIG. 10 is a modification of FIG. 8, with two forceps ports 21
2 shows a device equipped with a forceps opening 75 in which a liquid injection hole 74 is formed.

FIGS. 11 and 12 show a second embodiment in which the present invention is applied to an endoscope channel cleaning device 81 that employs an electric pump 80 as a liquid feeding means. Orifices 71a and 71b provided in the two connectors of the ms device 81
Contrary to the first embodiment, the openings are made larger on the air and water supply pipe side where the flow resistance is greater, and smaller on the suction pipe side where the flow resistance is smaller (opening of the air and water supply side orifice 71a) on the suction side. The cleaning liquid 50 is supplied to the endoscope 1 through the air and water supply cylinder 17 and the suction cylinder 18 at approximately the same pressure so that the cleaning liquid 50 reaches an appropriate level. It is designed to be fed into various pipes. Endoscope pipe cleaning device 8 that continuously sends liquid
1. So, as mentioned earlier, inside? J! There is a concern that the cleaning liquid may not flow smoothly into the conduit due to the flow resistance of the conduit of the mirror 1, but the orifice 71a,
By adjusting the flow resistance by 71b, the fluid flows smoothly and smoothly both in the direction of low flow resistance and in the direction of high flow resistance, and cleans the conduit of the endoscope 1 with high cleaning performance. be able to. Of course, such a cleaning solution 5
The adjustment means for 0 is internal, as mentioned earlier. ! It may be provided on the open side of the mirror or may be provided on both the endoscope 1 and the endoscope channel cleaning device i25. However, Figures 11 and 12
In the figures, the same reference numerals are omitted for the same components as those in the first embodiment, and the explanation thereof is omitted.

Note that in both the first and second embodiments described above, the flow rate of the cleaning liquid was adjusted using a fixed orifice, but the third embodiment shown in FIGS. For example, the air and water cylinder inlet fitting 56. At least one lower end of the suction cylinder inlet fitting 57,
An orifice member 91 is provided in which the opening area of the orifice 90 can be varied by moving forward and backward toward the outside from its lower end to constitute an adjusting means, thereby adjusting the flow rate of the cleaning liquid 50 according to the cleaning method. You can do it like this. In FIG. 13, 92 is a bottomed cylindrical channel formed in the orifice member 91 in the axial direction, and 93 is an orifice provided on the peripheral wall of the orifice member 91 so as to communicate with the channel 92. It is a hole.

(Effects of the Invention) As explained above, according to the present invention, it is possible to adjust the flow resistance of the pipe line of the endoscope and the flow rate of the cleaning liquid according to the volume inside the pipe line by means of adjusting the flow. This makes it possible to simultaneously and quickly send cleaning fluid to every corner of the endoscope.

[Brief explanation of the drawing]

1 to 5 show a first embodiment in which the present invention is applied to a simple endoscope channel cleaning device, and FIG. 1 shows the structure of the connecting means and the adjusting means provided in the connecting means. 2 is a schematic configuration diagram showing the internal pAMt cleaned by the endoscope duct cleaning device. FIG. 3 is a front view showing the overall structure of the endoscope duct cleaning device. The fourth factor is a sectional view showing the configuration of the pump part that constitutes the liquid feeding means, FIG. 5 is a front view showing the valve body of the check valve that makes up the pump part, and FIG.
7 and 7 show a modification of the first embodiment, FIG. 6 is a front view showing an endoscope channel cleaning device that feeds cleaning liquid from the connector side of the endoscope, and FIG. FIG. 8 is a sectional view showing the structure of the section XI means provided in the liquid supply pipe, and shows a modification of the present invention in which an orifice is provided at the forceps port of the endoscope to adjust the flow rate of the cleaning liquid. The front view shown in FIG. 9 shows a different modification of this invention. FIG. 10 is a perspective view showing the components of the adjusting means for adjusting the flow rate of the cleaning liquid using the water supply mouthpiece of one mirror; FIG. 10 is a sectional view showing a modification of the embodiment shown in FIG. 8; FIG. FIG. 12 shows a second embodiment in which the present invention is applied to an endoscope channel cleaning device that uses an electric pump as the liquid feeding means, and FIG. 11 shows the overall structure of the endoscope channel method 11181. 12 is a front view, FIG. 12 is a sectional view showing the structure of the connecting means and the adjusting means provided in the connecting means, and FIGS. 13(a) and (b) are different views of the third embodiment of the present invention. FIG. 3 is a cross-sectional view showing the structure of the adjusting means and the variable state of the flow rate thereof. 1... Endoscope, 5, 6, 7, 8, 9. 10, 11゜1
2... Insertion part side air supply pipe, insertion part side water supply pipe, insertion part side suction pipe, insertion part side gas pipe, connector side air supply pipe,
Connector side water supply pipe, connector side suction pipe, connector side gas pipe (endoscope pipe), 25.81... Endoscope pipe cleaning device, 26... Liquid feeding means, two ... Connector (connection means), 30 ... Liquid feeding pipe line, 71a, 71b,
76.78.90... Orifice (adjustment means). Applicant's representative Patent attorney Atsushi Tsuboi Procedural amendment [@, Mon06 Ordinance 138 Commissioner of the Patent Office Manabu Shiga 1, Indication of the case Patent application No. 59-247416 2, Name of the invention Endoscope pipe cleaning! 3, Relationship with the person making the amendment Patent applicant name (037) Olympus Optical Industry Co., Ltd. 4, Agent 5, Voluntary amendment 7, #I Correct content 0) Specification IF page 2, line 9 ( = Correct the phrase "...from the snowy road...-" to "...the pipe (from the second..."). 18" is corrected to "Gasujiring 19." 13+ Details 111JG12-e-, /10th line (=
It is corrected as "Suction injection port money 5fJrr Makihiki injection money 57". <Seasonal statement * M L 54 -ノ 1st line 1 -m R water is transmitted〉〉。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。

Claims (2)

[Claims] (1) A liquid sending means for sending a cleaning liquid to various pipes of the endoscope, and a liquid sending pipe that guides the sent washing liquid to a mouthpiece that communicates with the pipes of the endoscope. , a connecting means for connecting the liquid sending pipe to the base of the endoscope, and an adjusting means for adjusting the flow rate of the cleaning liquid sent to each of the pipes. Endoscope channel cleaning device. (2) The endoscope channel cleaning device according to claim 1, wherein the adjusting means is provided within the connecting means.