JP2000229063A - Cleaning device of endoscopic duct - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a hindrance to suction operation at standby period and to prevent reduction in a cleaning effect by cleaning an atmospheric communicating duct. SOLUTION: In a solenoid valve unit 25 for making fluid flow to an endoscopic duct on the basis of control of solenoid valves V1 to V6, for example, a suction pipe 24C and the solenoid valve V5 are arranged for suction operation, and an atmospheric communicating duct 35 opening to the atmosphere and the solenoid valve V6 are arranged to be connected to the suction pipe 24C for standby operation of suction. A tip port 36 of the atmospheric communicating duct 35 is exposed outside a casing of the solenoid valve unit 25 so that a pipe member can be connected for cleaning. Thus, for example, a soft tube of a tank housing a cleaning liquid is connected to the tip port 36 to make the cleaning liquid flow to the atmospheric communicating duct 35.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning apparatus for an endoscope pipe, and more particularly to a cleaning apparatus applicable to an endoscope system for controlling opening and closing of a suction pipe and the like by using an electromagnetic valve.

[0002]

2. Description of the Related Art FIG. 4 shows a configuration of a conventional endoscope and a configuration of an electromagnetic valve unit relating to a suction pipe. The illustrated endoscope (or electronic endoscope) 1 has a distal end 1A.
A water supply pipe 2A, an air supply pipe 3A, and a suction pipe 4A are provided from to the operation unit 1B, and a detachable cap 5 is attached to a tip of the tip 1A, and an observation window ( A nozzle or the like for supplying air / water to the lens surface of the objective optical system) is provided. And the above water pipe 2
A, the air supply pipe 3A, and the suction pipe 4A are connected to the electromagnetic valve unit 7 by a water supply pipe 2B, an air supply pipe 3B, and a suction pipe 4B arranged in a cable or the like. The suction tube 4A is provided with a forceps port 8 via a branch tube, and a treatment tool such as a forceps port is connected to the suction tube 4A via the suction tube 4A (in this case, a treatment tool conduction channel). Can be guided to the tip.

The operation unit 1B includes a two-stage air / water switch 10, a suction switch 11, and a photographing button 1
The operation control signals for the switches 10 and 11 are supplied to the solenoid valve unit 7. The electromagnetic valve unit 7 is connected to the suction pipe 4B,
A suction pipe 4C connected to the suction tank 14 of the suction device is provided, and an electromagnetic valve (open / close valve) V5 such as a pinch valve is attached to the suction pipe 4C. Further, the suction tube 4
An air communication (open air) pipe 4D is branched and disposed in C, and an electromagnetic valve V6 is attached to the air communication pipe 4D.

According to the configuration of such an endoscope, when the electromagnetic valve V6 in the electromagnetic valve unit 7 is in the open state and the air in the atmosphere is sucked from the atmosphere communication pipe 4D, the endoscope enters a standby state. When the suction switch 11 of the endoscope operation unit 1B is pressed,
The solenoid valve V6 is closed and the solenoid valve V5 is opened, thereby sucking contents and the like in the body to be observed from the suction port of the distal end portion 1A through the suction pipe 4 (A, B, C). It can be collected in the tank 14. The above water pipe 2
According to (A, B) and the air supply pipe 3 (A, B), cleaning of the observation window (lens surface), removal of water droplets,
Inflation of a body cavity such as the stomach is performed.

[0005] Since the suction tube 4 sucks the contents (including dirt and the like) in the body to be observed as described above, cleaning is performed after the endoscope is used. That is,
Conventionally, the suction device is operated with the suction port of the tip 1A being put in the cleaning liquid, and the cleaning liquid flows from the tip 1A to the electromagnetic valve unit 7 to thereby suction pipes 4A, 4B, 4C.
The inside is cleaned.

[0006]

By the way, in the above-mentioned cleaning of the endoscope channel, the washing water can be flown to the suction pipes 4A, 4B and 4C, but the air communication pipe 4D branched from the suction pipe 4C. No washing water is supplied. In the atmosphere communication pipe 4D, the suctioned material does not pass and there is no necessity of cleaning. However, the suctioned material leaks little by little from the branch point with the suction pipe 4C, and contaminants and the like enter the air communication pipe 4D. There is a risk of intrusion.

Therefore, there is a problem that the air communication pipe 4D becomes unclean and leaks such as dirt accumulate, which hinders the suction operation during standby. In addition, it is conceivable that such a leaked substance flows back into the cleaned suction pipe 4, and in this case, the cleaning effect of the suction pipe 4 is reduced.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to make it possible to clean an air communication pipe so that suction operation during standby is not hindered and the cleaning effect is reduced. It is an object of the present invention to provide an endoscope channel cleaning device which does not require any cleaning.

[0009]

In order to achieve the above object, an invention according to claim 1 is to provide an electromagnetic valve for controlling the opening and closing of an endoscope channel, and to allow a fluid to flow based on the control of the electromagnetic valve. Pump, and an endoscope in which a pipeline control unit having an atmosphere communication pipe connected to the endoscope pipeline for causing the pump to perform a standby operation is disposed, wherein a distal end port of the atmosphere communication pipe is It is characterized in that it is exposed to the outside of the casing of the pipeline control unit, and a pipe member for cleaning can be connected to the distal end port.

[0010] According to the above structure, for example, the flexible tube connected to the tank containing the cleaning liquid is connected to the tip end of the air communication pipe disposed in the casing of the pipe line control unit, and the suction is performed. It is possible to flow the cleaning liquid through the cleaning device. In addition, cleaning can be performed by inserting the brush into the atmosphere communication pipe.

[0011]

FIG. 1 shows an endoscope system to which an endoscope channel cleaning apparatus according to an embodiment is applied.
FIG. 2 is an external perspective view of a part of a solenoid valve unit which is a pipeline control unit. Endoscope 2 shown in FIG.
0, a water supply pipe 22A, an air supply pipe 23A, and a suction pipe 24A are provided from the distal end portion 20A to the operation section 20B, as in the case of FIG. 4, and the operation section 20B is a two-stage switch. An air / water switch 10, a suction switch 11, and a photographing button 12 are provided. In addition, the water pipe 22B and the water pipe 22B are connected so as to connect the operation unit 20B and the electromagnetic valve unit 25.
An air supply pipe 23B is provided in the cable. In this example, the pipe unit 20 is provided behind the operation unit 20B.
C is detachably provided, and the water supply pipe 2 is formed by a folded portion formed when the pipe unit 20C is connected.
2A and 22B and the air supply pipes 23A and 23B are connected.

A suction pipe 24B extending to the solenoid valve unit 25 is attached to the pipe unit 20C.
The suction tube 24B is provided with a forceps port 26 branching from the middle. In addition, a lens surface flash port 27 is provided so as to be connected to the water supply pipe 22A.
Water can be jetted at a high flow rate to the observation window lens surface of A.

As shown, the solenoid valve unit 25 includes a water supply pipe 22C, a solenoid valve (open / close valve) V1 including a pinch valve, a diaphragm valve, and the like, and an air supply pipe 23C.
, An electromagnetic valve V3, and a pump 29 directly connected to the air supply pipe 23C. A water supply tank 30 is provided in the water supply pipe 22C via a water supply pipe 22D. A pipe (air supply pipe) 23E connected to the pump 29 is connected via a pipe 23F. An auxiliary air supply pipe 23D for supplying air from the air supply pipe 23C to the water supply pipe 22C and a solenoid valve V2 are provided.
Water is drained from the water pipes 22A and 22B on the endoscope side by the auxiliary air pipe 23D and the solenoid valve V2.

A check valve 32 is attached to each of the air supply pipes 23C and 23E at a position shown in the figure, and the check valve 32 allows water or the like to flow back to the air supply pipes 23 (CE) in the solenoid valve unit 25. It serves to prevent internal dirt by not doing so. Further, the pump 29 is provided with an atmosphere communication pipe (open pipe) 34 and a solenoid valve V4 branching from the middle of the pipe 23C, and when air / water supply is not performed, the air communication pipe 34 is provided.
Becomes open to the atmosphere.

On the other hand, in the solenoid valve unit 25, a suction pipe 24C connected to the suction pipe 24B and a pinch valve solenoid valve V5 are provided, and the suction tank 24 on the suction device side is connected to the suction pipe 24C. . This suction pipe 24C also has an atmosphere communication pipe 3 for setting a suction standby state.
5 and the solenoid valve V6 are connected.

The distal end (connection) port 36 of the air communication pipe 35 is connected to the solenoid valve unit 2 as shown in FIG.
The distal end port 36 has a connection structure to which a flexible tube can be attached. For example, a ring-shaped projection for securely fixing the connected flexible tube 38A is formed on the outer periphery of the distal end port 36. . The other connection port 37 arranged on the right side of FIG. 2 connects the above-described flexible tube 38B on the suction tank 14 side to the suction pipe 24C, and has the same size and structure as the connection port 37. The distal end (connection) port 36 is arranged.

Therefore, the distal end port 36 of the air communication pipe 35 is provided.
As shown in FIG. 2, a flexible tube 38B or the like on the side of the cleaning liquid tank 40 containing the cleaning liquid can be connected to the outer peripheral portion. In addition, a cleaning liquid supply member such as a cleaning water tank or a syringe may be connected to the distal end port 36 by a pipe member fitted to the inner peripheral surface thereof.

Further, the solenoid valve unit 25 has a control unit 4 for controlling the solenoid valves V1 to V6, the pump 29 and the like.
1, a power supply unit 42, and the like, and an operation panel and the like of the unit 25 are provided with an air communication pipe cleaning switch 44, a drain switch 45, and the like. In the control section 41, on / off signals of these switches 44 and 45 and the above-described air supply /
Various operations are executed by inputting control signals of the water supply switch 10, the suction switch 11, and the like. In this example,
When the suction switch 11 of the endoscope operation unit 20B is pressed, the control unit 41 controls the solenoid valve to close V6 and V5.
Is opened and suction is executed. When the air communication pipe cleaning switch 44 is pressed, for example, the solenoid valve V6 is opened, and
Set 5 to closed. This allows the cleaning liquid in the cleaning liquid tank 40 to flow to the atmosphere communication pipe 35.

The embodiment has the above configuration, and the operation shown in FIG. 3 is executed in this endoscope system. As shown in FIG. 3, when the power of the solenoid valve unit 25 is turned off, only the solenoid valve V6 on the suction side is opened (OPEN). When a suction device is connected, air is discharged from the atmosphere communication pipe 35 to the suction tank 1.
It is sucked to the 4 side. On the other hand, when the power is turned on, the pump 29 operates and simultaneously the air / water supply side air communication pipe 34.
Is opened, and the air supplied from the pump 29 is discharged to the atmosphere. When the first stage of the air supply / water supply switch 10 of the operation unit 20B is pressed to perform the air supply operation, only the solenoid valve V1 to V4 is opened and the others are closed (CLOSE), and the air supply tubes 23C to 23A are closed. The air is supplied via

When the water supply operation is performed by pressing the second stage of the air / water supply switch 10 from the above state, only V1 of the solenoid valves V1 to V4 is opened and the others are closed, and the water supply pipe 22D is closed.
Water in the water supply tank 30 through the tip portion 20A
Is supplied up to. When the drain switch 45 on the solenoid valve unit 25 side is pressed, the solenoid valve V2 is opened, the other solenoid valves V1 to V4 are closed, and air is supplied to the water pipe 22C.
This is performed for 22B and 22A, and water can be drained from these tubes.

On the other hand, the suction switch 11 of the operation unit 20B
When is pressed, of the solenoid valves V5 and V6, V5 is opened and V6 is closed, suction is performed through the suction pipes 24A to 24C, and dirt sucked from the tip 20A is stored in the suction tank 14. Is done. Then, at the time of endoscope channel cleaning, as shown in FIG. 2, when the tube 38B of the cleaning liquid tank 40 is connected to the distal end port 36 of the air communication tube 35 and the air communication tube cleaning switch 44 is pressed, the electromagnetic valve is pressed. V5 is closed, V6
Is opened, and the cleaning liquid flows into the suction tank 14 through the atmosphere communication pipe 35. Therefore, even when dirt or the like leaks into the air communication pipe 35, it is possible to easily perform the cleaning. Further, when the dirt is severe, a cleaning brush can be inserted through the distal end port 36.

The above-described washing method is merely an example, and a syringe-like one is connected to the inner periphery of the above-mentioned distal end port 36, and the washing liquid is passed through the air communication pipe 35 by the piston operation of the syringe. For example, various methods can be applied.

[0023]

As described above, according to the present invention,
In an endoscope that connects an air communication pipe to an endoscope pipe in order to cause a pump to perform a standby operation, a tip end of the air communication pipe is exposed outside a casing of a pipe line control unit, and a cleaning port is provided on the tip end. Can be connected, so that a cleaning liquid tank or the like can be connected to the distal end port to clean the atmosphere communication pipe. Therefore, there is an advantage that the suction operation during standby is not hindered by the contamination of the air communication pipe, and the cleaning effect is not diminished.

[Brief description of the drawings]

FIG. 1 is a diagram showing an endoscope system to which an apparatus for cleaning an endoscope channel according to an embodiment of the present invention is applied.

FIG. 2 is a perspective view showing an external configuration of a pipe front end port in the electromagnetic valve unit of FIG. 1 and members connected thereto.

FIG. 3 is a view showing an opening / closing operation of an electromagnetic valve in the endoscope system of FIG. 1;

FIG. 4 shows a conventional endoscope system (particularly regarding a suction tube).
FIG.

[Explanation of symbols]

1,20 ... endoscope, 4,24 ... suction tube, 7,2
5: Solenoid valve unit, 11: Suction switch,
14 ... suction tank, 34, 35 ... atmosphere communication pipe,
36 ... Tip port, 40 ... Cleaning liquid tank, 41
... Control unit, 44 ... Atmospheric communication pipe cleaning switch, V1
~ V6 ... Solenoid valve.

Claims (1)

[Claims] 1. An electromagnetic valve for controlling the opening and closing of an endoscope conduit, a pump for flowing a fluid based on the control of the electromagnetic valve, and a pump connected to the endoscope conduit for standby operation of the pump. An endoscope in which a pipeline control unit having an atmosphere communication pipe is disposed, wherein a tip end of the atmosphere communication pipe is exposed outside a casing of the pipeline control unit, and the tip end is provided for cleaning. An endoscope duct cleaning device, wherein a pipe member is connectable.