JPS59218136A - Washing instrument 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 The present invention relates to an endoscope duct cleaning instrument for cleaning various ducts built into an endoscope.

Generally, endoscopes are equipped with various pipes for air supply, water supply, suction, and the like. Therefore, when cleaning a used endoscope, it is necessary to clean not only the outer surface of the endoscope but also the inside of each duct. The cleaning referred to here refers to the so-called washing with water to remove contamination inside the pipes, the poisoning using a chemical solution after this washing, and the washing with water after disinfection, and it is normal to wash in the above order. It is.

Incidentally, various liquid feeding devices are used to flow liquid into the various conduits of the endoscope. This liquid sending device has a suction port through which the liquid in the liquid storage portion is sucked and sent to the pipe line. However, the above-mentioned conduit is not only thin, particularly on the side of the insertion portion inserted into the human body, compared to the side of the light guide cable, but also branched into various branches. Therefore, if foreign matter such as gauze lint or dirt is mixed into the liquid, that foreign matter may remain in the pipe, so air supply, water supply, suction, etc. after cleaning must be performed reliably. The problem arises that it cannot be done.

This invention was made based on the above-mentioned circumstances, and its purpose is that even if foreign matter is contained in the liquid, the foreign matter enters the conduit of the endoscope and remains, and the air supply and To provide a cleaning instrument for an endoscope conduit, which prevents water supply, suction, etc. from becoming impossible.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 5. 1 in Figure 1 is an endoscope 1, this endoscope r81
It is composed of an insertion section 2, an operation section 3, and a cable 4. Inside the endoscope 1, various ducts are incorporated as will be described later. First, insert section 2
, an air supply conduit 5 and a liquid supply conduit 6 are inserted and arranged across the operating section 3 and the light guide cable 4. The ends of the air supply pipe line 5 and the liquid supply pipe line 6 merge and are connected to an air and liquid supply nozzle 7 provided at the distal end of the insertion section 2, and the air and liquid supply nozzle 7 is connected to an observation window (not shown). ), and the cleaning liquid and air are sprayed toward the outer surface of the observation window. A connector 9 is provided at the extending end of the light guide cable 4, and this connector 9 has first and second air supply bodies 1θ, 1 which communicate with the air supply pipe line 5, and a connector 9 connected to the liquid supply pipe line 6. Communicating liquid feeding port body 1
2 and a suction body 137 that communicates with a suction conduit to be described later.
Mヰ= is provided respectively. The first air supply port body 10 is connected to an air supply bond in the light source device (not shown) when the connector 9 is attached to the light source device (not shown). Further, the second air supply port body 11 and the liquid supply port body 12 are each connected to a liquid supply tank (not shown). Further, the suction port body 13 is connected to a suction device (not shown).

On the other hand, a suction conduit 15 is inserted into and arranged inside the insertion section 2, the operating section 3, and the light guide cable 4. The distal end of this suction conduit 15 is formed as a channel for inserting a treatment instrument. The distal end of the treatment instrument insertion channel opens into the suction port 17 on the distal end surface of the insertion section 2, and the proximal end of the treatment instrument insertion channel opens to the outside in the operating section 3 to form the forceps mouth body 18. are doing. Note that 16 is a sub-liquid feeding port body having a check valve 16h, which communicates with the liquid feeding pipe line 6.

Further, the treatment instrument insertion channel is connected to the proximal end of the suction conduit 15 via a suction on-off valve cylinder 19 . Furthermore, an air/liquid supply opening/closing valve cylinder 20 is inserted between the air supply pipe line 5 and the liquid supply pipe line 6. The on-off valve cylinders 19 and 20 are arranged adjacent to the side surface of the operating section 3. The suction on/off valve cylinder 19 has a cylindrical shape with a bottom as shown in FIG.
Seven flanges 23 are integrally provided on the edge of the opening.

Similarly, the air/liquid supply on/off valve cylinder 20 has a cylindrical shape with a bottom, and a flange 24 is integrally provided at the opening edge thereof. And each of the above-mentioned on-off valve cylinders 19°20
A plug body 32, 33 is attached to each of the holes to close the open end. Furthermore, the inner peripheral surface of each plug body 32.33 has engagement grooves 32a, 33a that engage with the flanges 23.24.
is engraved to prevent the plugs 32, 33 from coming off even if the internal pressure of the cylinders 23, 24 increases.

Incidentally, a piston (not shown) is inserted into each of the on-off valve cylinders 19.20, and by operating this piston, each pipe line 5, 6.15 can be communicated or cut off. When installing the 32° 33, remove the piston beforehand. In addition, the connector part 9
As shown in FIG. 3, the second air supply port body 11 and liquid supply port body 12 open to the injection port metal 37, and through the internal space of the connection port body 38 fitted to the injection port metal 37, and communicate.

Next, a cleaning instrument for cleaning each channel of the endoscope constructed as described above will be explained based on FIGS. 1 and 4. In the figure, 40 indicates a liquid feeding device, and this liquid feeding device 40 is equipped with an instrument main body 41. This instrument body 4
No. is molded from synthetic resin or glass. This instrument main body 41 has a cylindrical shape and has a first reversal valve 42 at its tip.
is provided. This switching valve 43 has a cylindrical valve housing 44.
The valve body 45 is rotatably housed in the valve housing 44, and a control lever 46 for rotating the valve body 45. The valve housing 44 has a liquid injection port 47 that communicates with the device main body 41, and a first liquid injection port 47 at a position offset by 900 degrees from the liquid injection port 47. Second connection port body 48
．． 49 are provided. Further, the valve unit 45 is provided with a diagonally cut out communication portion 50, and by rotating the valve body 45, the liquid inlet 47 is connected to the first connection port body 48 and the second connection port body 49. It is possible to selectively communicate with the

And this first one. The second connection ports 48 and 49 have the first connection ports 48 and 49. One base end of the second liquid feeding tube 51, 52 is connected. Furthermore, a fitting hole 53 is provided at the proximal end of the instrument body 4 to be connected to a syringe, which will be described later, and a suction port body 54 is provided at the midpoint of the instrument body 41. A tube 56 is connected to this suction port body 54 via a connecting ring 55, and this tube 56 communicates with a liquid tank 57 that is a liquid storage section that stores liquid. Furthermore, this suction port body 5
4 is provided with a second check valve 58. Also, 5
Reference numeral 9 denotes a syringe body of a syringe 60, and a connection port body 61 at the tip thereof is removably connected to a fitting hole 53 of the instrument body 53. A piston 62 is inserted into the syringe body 59 so as to be movable forward and backward.

A filter device 65 is connected to the end opening and tb suction port of the tube 56. This filter device 65 includes a main body 66 as shown in FIG. This main body 66
A cap 67 is protruded from one end surface, and a recess 68 is formed from the other end surface.
A suction passage 69 is formed between the main body 66 and the cap 67. Further, an annular presser body 70 is screwed onto the other end surface of the main body 66, and a filter 71 is held between the ring presser body 70 and the main body 66 in a state in which the four parts 68 are closed. This filter 71 is made of, for example, a mesh having 940 or more meshes per inch.

Next, a case will be described in which each channel of an endoscope is cleaned using the cleaning instrument configured as described above. First, as shown in FIG. 1, plugs 32 are attached to the suction on-off valve cylinder 19 and the air/liquid feed on-off valve cylinder 20 of the operating section 3 of the endoscope.
Attach 33. Further, the connection port body 38 is fitted into the injection port metal 37 of the connector portion 9 . Furthermore, the first
The liquid feeding tube 51 is connected to the first air feeding port body 1 of the connector part 9.
0, insert the second liquid feeding tube 52 into the forceps mouth body 1 of the operating section 3.
8 respectively.

In this state, when the piston 62 is retreated (retracted) with respect to the syringe body 59, there is no negative pressure inside the instrument body 41, the first check valve 42 is closed, and the second reverse valve 58 is closed. The valve becomes open. Therefore, the liquid in the liquid tank 57 is sucked into the tube f56 through the filter 71 of the filter device 65, and is accommodated in the instrument body 41 and the syringe body 59 from this tube 56 via the suction port 54. Furthermore, since the liquid passes through the filter 71 and is accommodated in the syringe body 59, even if foreign matter is mixed in the liquid in the liquid tank 57, the foreign matter is removed by the filter 7 and stored in the syringe body 59. There is no suction. Next, when the piston 62 is moved forward (pushed in), there is no positive pressure inside the instrument main body 41, the first check valve 42 is opened, and the second check valve 58 is closed. Therefore, the instrument body 4
1 and the cleaning liquid in the syringe body 59 are forced to be fed through the liquid injection port 47. At this time, if the switching valve 43 allows the liquid inlet 47 to communicate with the first connection port body 48 via the communication part 50, as shown by the solid line in FIG. The liquid is sent from the body 48 to the first air supply port body 10 of the connector section 9 via the first liquid supply tube 5 . The liquid supplied to the first air supply port body 10 flows through the air supply pipe line 5 and is introduced into the air/liquid supply opening/closing valve cylinder 20, and a part of the cleaning liquid is transferred to the second air supply port body. Flows to 11.

Therefore, the cleaning liquid led to the second air supply port body 11 passes through the internal space of the connection port body 38, is branched to the liquid supply port body 12, flows through the liquid supply pipe line 6, and opens and closes the air supply and liquid supply. It is introduced into the valve cylinder 20. The liquid introduced into the air/liquid feeding on/off valve cylinder 20 flows through the air/liquid feeding line 5 and the liquid feeding line 6 on the side of the insertion section 2 and flows out from the air/liquid feeding nozzle 7. Therefore, the inside of the air supply pipe 5 and the liquid supply pipe 6 are cleaned over the entire length, and at this time, the cylinder 20 for the air and liquid supply opening/closing valve is cleaned.
The inside will also be cleaned at the same time.

Next, when the operating lever 46 of the switching valve 43 of the cleaning device is operated to rotate the valve body 45 as shown by the broken line in FIG. connection port 4
It connects to 9. In this state, use the syringe 6o as described above.
When the piston 62 is operated to suck the liquid in the liquid tank 57 through the filter device 65 and then force-feed it, the liquid passes through the second liquid-feeding tube 52 from the second connection port body 49 to the operating section. The liquid is sent to the forceps mouth body 18 of No. 3. The liquid supplied to the forceps mouth body 18 is divided into the insertion section 2 side and the operating section 3 side, and the liquid flowing to the insertion section 2 side flows through the suction pipe 16 and flows out from the suction port 17. Further, the liquid flowing toward the operating section 3 is introduced into the suction on-off valve cylinder 19, flows through the suction conduit 15 on the light guide cable 4 side, and flows out from the suction port body 13 of the connector section 9. Therefore, the inside of the suction line 15 is cleaned over its entire length, and at this time, the inside of the suction valve cylinder 19 is also cleaned at the same time, and all the lines of the endoscope are cleaned.

Moreover, during such cleaning, even if foreign matter is contained in the liquid in the liquid tank 57, the foreign matter is reliably removed by the filter 7 of the filter device 65.
The above-mentioned foreign matter is not sent into the various pipe lines 5, 6° 22 and remains there.

Note that in the above embodiment, the first liquid feeding tube 5
1 is connected to the first air supply port body 1o, and the second liquid supply tube 52 is connected to the forceps mouth body No. 8 to supply cleaning liquid. This is an example of a cleaning method. Alternatively, for example, the suction pipe 15 may be cleaned by supplying the air through the suction port 13 or the suction port 17, and the second air supply body 11 and the liquid supply body 12 may be connected in sequence to supply the liquid. It may be liquid. Furthermore, it is also conceivable to feed liquid from each cylinder 19, 20 of the operating part 3.

Further, the present invention can also be applied to an endoscope equipped with a gas supply pipe line for conveying CO, gas, etc. into a body cavity, and an on-off valve 4 for the gas supply.

Furthermore, the liquid in the above embodiments may be water or a chemical solution, and when a chemical solution is used, it is generally called disinfection.
The cleaning mentioned here includes so-called washing with water and disinfection.

Further, the filter device 65 according to the present invention may have a structure shown in FIG. 6 or FIG. 7. That is, the filter device 65 shown in FIG. 6 holds a filter 71 between its main body 66 and a presser body 70 via a cylindrical weight 75, and has a plurality of legs on the end surface of the valve body 70. A body 76 was provided protrudingly. According to such a structure, the filter device 65
is reliably sunk to the bottom of the liquid tank 57 due to the weight of the main shifter 5, and the presser body 7o is pushed into the liquid tank 5 via the legs 76.
7, the suction passage 69 will not be blocked.

Further, the filter device 65 shown in FIG.
A shaft 8o is provided protruding from the end face of the body 66, and a mounting plate 81 holding the filter 7 is rotatably mounted on this shaft 8°. A cylindrical filter holder 82 having approximately the same external dimensions as the main body 66 that holds the filter holder 82 is attached. A lever 83 protruding from the outer peripheral surface of the main body 66 is provided on the mounting plate 8 . According to such a structure, the mounting plate 81 is connected via the shield 83.
If you rotate it as shown by the chain line in the figure, this mounting plate 81
The filter 7 held in the filter 7 can be easily cleaned and replaced.

Furthermore, the liquid feeding device 4o according to the present invention may use other means such as an electric bonder instead of the syringe.

Further, the filter 7 may be provided not at the end of the tube 56 that serves as the suction port, but may be provided anywhere as long as it is between the suction port and the conduit of the endoscope 1.

As described above, the present invention provides a filter for removing foreign substances contained in the liquid from the suction port of the liquid feeding device that suctions the liquid in the liquid storage section to the conduit of the endoscope. Ta. Therefore, since the above-mentioned filter prevents foreign matter from entering the various pipes of the endoscope, which have a very small diameter, foreign matter remains in the pipes after cleaning, making it impossible to reliably supply air, water, suction, etc. Never.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention in a state of use, FIG. 2 is a sectional view enlarging a part of the operating section
FIG. 3 is an enlarged view of the connector portion, FIG. 4 is a sectional view of the liquid delivery device, FIG. 5 is a sectional view of the filter device, and FIGS. 6 and 7 are other embodiments of the present invention. FIG. 2 is a cross-sectional view of the filter device. DESCRIPTION OF SYMBOLS 1... Endoscope, 5... Air feeding pipe line, 6... Liquid feeding pipe line, 15... Suction pipe line, 40... Liquid feeding device, 56...
・Tube (suction port), 57...Liquid tank (liquid storage part) 71
···filter.

Claims (1)

[Claims] A cleaning device that circulates liquid through a conduit installed inside an endoscope and cleans the conduit, which has a suction port that suctions the liquid in the liquid reservoir, and the liquid sucked from the suction port is transferred to the pipe. The liquid feeding device is equipped with a liquid feeding device that sends the liquid to the pipe, and a filter that is provided at a location from the suction port of the liquid feeding device to the pipe line to remove foreign substances contained in the liquid. A cleaning device for the endoscope channel.