JPH0343895B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an auxiliary tool for cleaning an endoscope conduit used when disinfecting the conduit system of an endoscope.

In order to use an endoscope more hygienically, it is necessary to thoroughly clean not only the outer surface of the endoscope but also all parts that may become contaminated. In other words, it is necessary to clean even the duct system formed within the endoscope. The above pipe system includes air supply pipes,
In addition to the water supply pipe, a carbon dioxide pipe is also provided. Therefore, in the past, cleaning liquid injection tubes were individually connected to each mouthpiece corresponding to each pipe line, and cleaning liquid was injected into each pipe line through each cleaning liquid injection tube using each delivery pump. I try to do that. In this way, since an injection tube and a delivery pump are individually prepared for each pipe line, the cleaning device has a large number of parts and has a complicated structure. Furthermore, the work of connecting each cleaning liquid supply tube was complicated, resulting in poor workability.

The present invention has been made focusing on the above circumstances,
The purpose of this is to help clean endoscope channels by easily cleaning each channel, reducing the number of parts for the delivery pump and injection tube, and simplifying the structure of the cleaning device. The aim is to provide the tools.

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

1 to 3 show a first embodiment of the invention. FIG. 1 shows an endoscope 1 to be used, which includes an operating section 2, an insertion section 3 for insertion into a body cavity, and a universal cord 4. A connector 5 is provided at the extending end of the universal cord 4 to be attached to a socket of an endoscope light source device (not shown). An observation window 6 is provided at the distal end of the insertion section 3, and the distal end surface of an image guide 8 is disposed facing inside the observation window 6 with an objective lens 7 interposed therebetween. The image guide 8 transmits an observation visual field image obtained by the objective lens 7 to an eyepiece 9 provided in the operating section 2, and the inside of the body cavity is observed through the eyepiece 9.

Various pipe systems are arranged inside the endoscope 1. That is, the air supply pipe line 11, the water supply pipe line 1
2 and a gas supply pipe line 13 are arranged. The air supply pipe line 11 and the water supply pipe line 12 are inserted across the insertion section 3, the operation section 2, and the universal cord 4. The operation section 2 is provided with an air/water supply switching operation valve 14 interposed between the air supply pipe line 11 and the water supply pipe line 12. This valve 14 divides each pipe line 11, 12 into an upstream side and a downstream side. The gas supply pipe line 13 is inserted across the operating section 2 and the universal cord 4. The downstream end is the air supply pipe line 11
connected in the middle. The operation section 2 is provided with a gas supply switching operation valve 15 interposed in the middle of the gas supply pipe line 13. Incidentally, the air/water supply switching operation valve 14 is similar to that disclosed in Japanese Patent Application No. 107464/1983. That is, as shown in FIG.
and a piston member (not shown) that is removably fitted into the piston member, and the piston member is biased by a biasing member 17 and positioned at a standby position. Furthermore, the piston member has a leak hole (not shown) that communicates with the outside. and,
When the piston member is in a standby state, the air supply pipe line 1
The upstream pipe section 11a and the downstream pipe section 11b of No. 1 communicate with each other, but they also communicate with the leak hole, so air only leaks to the outside and does not flow into the downstream pipe section 11b. In other words, no air is supplied. However, if the opening of the leak hole is closed with a finger, air flows to the downstream pipe section 11b and air is supplied. Furthermore, if the piston member is pushed in while the leak hole is closed, the air supply pipe 11 is blocked and the air supply pipe 12 is opened instead to perform water supply.

The above-mentioned gas supply switching operation valve 15 is a patent application filed in 1983.
The same one as shown in the specification of No. 160368 is adopted. That is, the valve body 21 is installed in the valve chamber 19 formed in the valve body 18, and the valve body 21 is urged by a coil spring 22 in a direction to contact the valve seat 23. The passage 24 connecting the conduit section 13a and the downstream conduit section 13b is blocked. In addition, the valve body 21 is
The passage 24 is opened by pushing the push button 27 which is removably engaged with the flange 26 of the flange 26 .

On the other hand, the connector 5 is provided with an air supply injection mouthpiece 28, a water supply injection mouthpiece 29, and a gas supply injection mouthpiece 31, respectively. The air injection mouthpiece 28 is provided with an air injection port 32 of the air supply pipe line 11.
However, the water supply injection port 33 of the water supply pipe 12 is connected to the water supply injection mouthpiece 29, and the water supply injection mouthpiece 31 of the water supply pipe 12 is connected to the water supply injection mouthpiece 29.
The gas feed inlet portions 34 of the gas feed pipe line 13 are respectively open. Furthermore, an air supply inlet portion 36 of an auxiliary air supply line 35 branching from the air supply line 11 is opened in the water injection mouthpiece 29 . In other words, the air supply inlet section 36 and the water supply inlet section 33 are provided side by side. Further, a flange 37 and an annular groove 38 are formed in the water injection mouthpiece 29, and a pipe communication device 39, which will be described later, is engaged with this portion.

The endoscope 1 is configured as described above. and,
The conduit communication device 39, which serves as an auxiliary tool for cleaning the endoscope conduit, has a structure in which it is attached as shown in FIG. That is, this conduit communication tool 39 is formed of an elastic body, and is provided with fitting ports 41 and 42 that fit into the water injection mouthpiece 29 and the gas injection mouthpiece 31 in a watertight manner using elasticity, respectively. ing. Further, a communication passage 43 is formed in the member of the pipe communication device 39 to communicate the air supply inlet section 32 and the gas supply inlet section 34 . As described above, the fitting opening 41 that fits into the water injection mouthpiece 29 tightly fits and engages the flange 37 and annular groove 38 of the mouthpiece 29. Further, the communication passage 43 is opened and communicated not only with the water supply inlet section 33 but also with the air supply inlet section 36 at the same time.

On the other hand, when cleaning the endoscope channel, each valve 1
Plugs 44 and 45 are attached to the holes 4 and 15, respectively. Each of the plug bodies 44, 45 is constructed as shown in FIG. That is, the stopper 44 attached to the air/water supply switching operation valve 14 closes the opening of the cylinder 16 from which the piston is removed. A flange 46 is provided at the open end of the cylinder 16, and an engagement groove 47 is formed on the circumferential surface of the cylinder 16, into which the stopper 44 is engaged. Furthermore, the plug body 44 has annular protrusions 48 and 49 that protrude radially outward at both end portions, and a constricted portion 51 is formed on the outer periphery of the intermediate portion located between the protrusions 48 and 49. Projection part 4
9, the ridges on the side of the constriction 51 are formed in a tapered shape, and the ridges at both ends of the plug body 44 are also formed in a tapered shape. Further, an annular protrusion 52 is provided inside the cylinder 16 that fits into the open end of the cylinder 16 to hold the flange 46, fit into the groove 47, and is biased radially inward.

Further, a plug body 45 attached to the gas supply switching operation valve 15 has the same structure as the above-mentioned plug body 44, except that a protrusion 53 is provided at the center of the interior thereof. When this protrusion 53 is attached to the valve body 18 from which the push button 27 has been removed, the valve body 21 is pushed in as shown in FIG. 3, and the valve body 21 is separated from the valve seat 23 to open the passage 24. ing.

The respective plug bodies 44 and 45 are connected by a seat body 54. That is, the seat body 54 is formed into a plate shape, and a pair of mounting holes 56, 57 are formed in the plate-shaped portion 55. It is smaller and is formed larger than the outer diameter of the constricted portion 51. Each of the plugs 44 and 45 has a tapered ridge and an inner portion, and is made of an elastic material, so that it can be inserted into the mounting holes 56 and 57. However, it cannot be pulled out downward from the seat body 54.

Next, when cleaning the endoscope channel, a second
As shown in the figure, a pipe communication device 39 is attached, and plugs 44 and 45 are attached to the valves 14 and 15, respectively. Therefore, each pipe line 11, 12, 13
not only communicate through the valves 14 and 15, but also communicate with each other through the communication path 43 of the pipe communication device 39. Therefore, a supply tube 58 is connected to the air injection mouthpiece 28, and a delivery device (not shown) supplies cleaning liquid during cleaning and air during draining. First, during cleaning, the cleaning liquid injected from the air supply inlet 32 is applied not only to the air supply pipe 11 but also to the water supply pipe 12 and the gas supply pipe 1 through the pipe communication device 39.
It flows into three parts. And each pipe line 11,1
2, 13 and valves 14, 15.

After this cleaning, air is supplied from the same delivery device through the supply tube 58, and the cleaned pipe lines 11, 12, 13 and the valve 1 are supplied with air.
4. Drain the water in step 15. Further, when performing disinfection, a disinfectant solution is supplied in the same manner as the above-mentioned cleaning solution. After this disinfection, provide rinsing water,
After that, air is supplied to drain the water.

FIG. 4 shows a second embodiment of the invention. The pipe communication device 39 of this embodiment has an elastic engagement portion 61 that fits into the water supply injection mouthpiece 29 and the gas supply injection mouthpiece 3.
1, and a cap part 62 that fits into the cap part 6.
2 are communicated through a flexible tube 63 formed integrally with the engaging portion 61. moreover,
The mouthpiece 62 is made of a hard fitting member, and the outer circumferential surface of its tip is formed into a syringe tapered gas injection port 34.
It is formed into a tapered shape that fits water-tightly into the opening. Further, the engaging portion 61 is provided with a hole 64 into which the outer circumferential surface of the distal end of the mouthpiece 62 is inserted to hold the mouthpiece 62 in a watertight manner.

Using this pipe communication device 39, cleaning can be performed in the same manner as in the previous embodiment. However, when used in an endoscope 1 that does not have the gas supply line 13, one mouthpiece 62 is inserted into the hole 64 and closed.

FIG. 5 shows a third embodiment of the invention. In the endoscope 1 in this case, the air supply pipe line 11 includes the air supply injection mouthpiece 28 and the water supply injection mouthpiece 2 as in the above embodiment.
9 and further communicates with a push button type switching valve 65. The push-button switching valve 65 is provided in the connector 5, and under normal conditions, the switching valve 65 connects the gas supply pipe 13 with the air supply pipe 11.
Close the side. Then, in a state where the switching is performed, the gas supply pipe 13 is closed on the gas supply inlet 34 side of the gas supply pipe 13, and the gas supply pipe 1 is connected to the gas supply pipe 13.
1 is connected. In addition, the pipe communication device 39 is made of an elastic member, has a structure similar to that of the first embodiment, and is fitted in a watertight manner to the water supply injection mouthpiece 29, and communicates the air supply pipe 11 and the water supply pipe 12. I'm starting to let them do it.

In this embodiment, the button of the push-button switching valve 65 is pressed to switch from the normal state. In addition, a pipe communication tool 39 is attached to the water injection mouthpiece 29.
, and further connect the supply tube 58 to the air injection mouthpiece 28. Then, by sequentially supplying the cleaning liquid and air from the delivery device as in the embodiment described above, each of the pipes 11, 12, and 13 can be cleaned and drained.

FIG. 6 shows a fourth embodiment of the invention. This embodiment differs from the third embodiment in that both the air supply line 11 and the gas supply line 13 are communicated with their respective injection ports 32, 33, and 34 via push-button type switching valves 66. In fact, in the normal state, the switching valve 66 connects the air supply pipe 11 and the gas supply pipe 13, and after switching, the switching valve 66 communicates with the air supply pipe 11 and the gas supply pipe 13, and after switching, the switching valve 66 communicates with the air supply pipe 11 and the gas supply pipe 13, and after switching, the switching valve 66 connects the air supply pipe 11 and the gas supply pipe 13 to the air supply inlet 32 side and the gas supply downstream side of the push button type switching valve 56. Conduit 13
The gas supply pipe 11 and the gas supply inlet portion 34 on the downstream side of the push-button switching valve 66 are closed. The operation is the same as in the third embodiment, but the cleaning liquid and air do not flow to the air supply pipe 11 downstream of the push-button switching valve 66.

In addition, in the third and fourth embodiments, switching between normal use and cleaning can be performed with a single touch.

FIG. 7 shows a fifth embodiment of the invention. This is a flexible tube 68 for the water supply mouthpiece in the water supply tank 67.
and a flexible tube 69 for a gas mouthpiece, and an air supply path 71 and an air supply path 7 are connected in the flexible tube 68.
2, and a gas passage 73 is provided within the flexible tube 69, and the air supply passage 71 and the gas passage 73 communicate within the flexible tube 68. The flexible tube 68 can be hermetically fitted to the water supply injection cap 29, and the other flexible tube 69 can be hermetically fitted to the gas supply injection cap 31. There is. Furthermore, when the flexible tubes 68 and 69 are connected, the air supply path 71 communicates with the air supply pipe line 11, the water supply channel 72 communicates with the water supply pipe line 12, and the gas line 73 communicates with the gas supply pipe line 13.

Therefore, the cleaning action is performed by feeding cleaning liquid and air through a supply tube 58 using a delivery device as shown in FIG. The cleaning liquid and air that have been sent pass through the air supply pipe line 11 and the air supply line 71 and flow into the gas supply pipe line 13 and the water supply tank 67. Moreover, the cleaning liquid that has flowed into the water supply tank 67 also flows into the water supply pipe line 12 through the water supply channel 72 due to its pressure. And each pipe line 11, 12,
Clean the inside of 13. However, draining is performed after the cleaning liquid in the water tank 67 is removed.

FIG. 8 shows a sixth embodiment of the invention. This embodiment differs from the fifth embodiment in that the flexible tubes 68 and 69 are integrated into a rubber adapter 76 having a fitting opening 75 that allows a conventional water tank 74 to be attached and detached. be.

FIG. 9 shows a seventh embodiment of the invention. This embodiment differs from the fifth embodiment in that the water tank 74
An air supply injection mouthpiece 28 is provided at the end.

Note that the first, second, fifth, and sixth embodiments can be easily applied to endoscopes that have been commonly used in the past. Further, in the sixth embodiment, a conventional type water tank can be used as is.

In the present invention, the cleaning liquid and air may be fed from a gas injection mouthpiece.

As explained above, the present invention provides a means for communicating the air supply pipe and the gas supply pipe near the connector part of the endoscope, and injects the cleaning liquid from either the air supply inlet or the gas supply inlet. This is what I did.
That is, there is no need to individually supply the cleaning liquid from each injection cap of the endoscope using a pump. Therefore, many expensive pumps are not required and it is economical.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of an endoscope applied to the first embodiment of the present invention, FIG. 2 is a schematic diagram of the same when cleaning the endoscope channel, and FIG. 3 is a diagram showing plugs in each valve. The sectional views with the body attached, and FIGS. 4 to 9 are schematic diagrams of an endoscope connector portion and a cleaning aid corresponding to the second to seventh embodiments of the present invention, respectively. 1... Endoscope, 5... Connector, 11... Air supply pipe line, 12... Water supply pipe line, 13... Gas supply pipe line,
28... Air injection cap, 29... Water injection cap, 31... Gas injection cap, 32... Air injection port, 33... Water injection port, 34... Gas injection port Part, 39... Pipe communication device, 58... Supply tube, 65... Push button type switching valve, 66... Push button type switching valve, 67... Water supply tank, 68... Flexible tube, 69... Possible Flexible tube, 71...
Air supply path, 72... Water supply path, 73... Gas path.

Claims (1)

[Scope of Claims] 1. An air supply pipe, a water supply pipe, and a gas supply pipe are arranged in the endoscope, and a connector part for connecting to an endoscope light source device is provided, and the connector part In an endoscope, the endoscope is provided with an air supply inlet part communicating with the air supply pipe, a water supply inlet part communicating with the water supply pipe, and a gas supply inlet part communicating with the gas supply pipe. In an auxiliary tool for cleaning an endoscope conduit used when supplying cleaning liquid to the conduit to clean the inside of the conduit, the cleaning liquid is injected from one of the air supply inlet and the gas supply inlet. An auxiliary tool for cleaning an endoscope conduit, comprising an injection means and a communication means for communicating the air supply conduit and the gas supply conduit in the vicinity of the connector portion. 2. The communication means forms a communication passage in a member that fits water-tightly into the water supply inlet and the gas supply inlet, and communicates the air supply pipe with the gas supply pipe through the communication passage. An auxiliary tool for cleaning an endoscope conduit, characterized in that: 3. The communication means has a switching valve that selects either the air supply pipe or the gas supply inlet and connects it to the gas supply pipe, and by switching the switching valve, the air supply pipe is connected to the air supply pipe. An auxiliary tool for cleaning an endoscope conduit, characterized in that the auxiliary device communicates with the gas supply conduit.