JP3523798B2 - Endoscope cleaning and disinfecting equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope in a cleaning tank.
For cleaning and disinfecting endoscopes. [0002] Generally, used endoscopes are used for endoscope cleaning.
It is set in the cleaning tank of the disinfection device, and washed in this cleaning tank.
Disinfected. For example, it is disclosed in Japanese Patent Publication No. 24530/1990.
In the endoscope cleaning and disinfecting equipment used, the liquid in the cleaning tank is
The two downstream pipes are connected to the discharge pipe that discharges to the
Have been. Here, one downstream pipe is connected to the recovery tank.
The collecting pipeline and the other downstream pipeline are
Each is formed by a water conduit. [0003] Also, between the discharge line and the two downstream lines.
A pipe switching valve is provided at a connecting portion for connecting.
This pipeline switching valve opens and closes two downstream pipelines respectively
Two valves to operate are provided. These two valves
Is driven by a drive mechanism that combines a motor and a gear mechanism.
Open / close operation by one operation axis that moves horizontally.
It is supposed to be. Further, in the pipeline switching valve of the device disclosed in the above publication,
A photo sensor for controlling the valve position is provided. So
Then, the liquid in the cleaning tank is moved out of the tank by the pipeline switching valve.
To the collection line in the collection tank
State and the state where it is connected to the drainage pipe that discharges outside the device.
Arbitrarily. Further, Japanese Utility Model Application Laid-Open No. Sho 60-166302 discloses
Open and close the pipeline for collecting the liquid in the washing tank into the collection tank
Opening / closing valves and drainage pipes discharging outside the equipment
On-off valves are provided, and the axes that drive these on-off valves are
Direct connection to independent solenoids, opening of two on-off valves
An endoscope that switches between two pipes by a combination of closing actions
A mirror washer is shown. SUMMARY OF THE INVENTION [0006]
As shown in the publication, a drive combining a motor and a gear mechanism
Motor type that opens and closes two on-off valves by a moving mechanism
In this case, there are the following problems. (1-1) Two on-off valves for one operating shaft
Therefore, in order to slide linearly in the axial direction,
Since there is a large amount of movement and the motor itself is large,
There is a problem that the entire drive mechanism of the replacement valve becomes very large. (1-2) To secure motor torque
The operation is slow. Therefore, when switching pipelines
Time consuming, when performing the entire process of the endoscope cleaning and disinfecting device
There is a problem that the total time is increased. (1-3) The light shielding plate attached to the operation shaft is
Position control of two on-off valves by detecting with sensors
It is carried out. Therefore, the light blocking plate may be
If it bends or the photo sensor is blocked,
Operation, and the position of the two on-off valves cannot be accurately controlled.
May be present. (1-4) The whole drive mechanism of the pipeline switching valve
There is a problem that the number of components is large and the cost is high. Further, Japanese Utility Model Application Laid-Open No. Sho 60-166302 discloses
Two open / close valves are directly operated by two solenoids
In the case of a switching valve of the open type, the following problems occur.
You. (2-1) With the power of the entire apparatus turned off
Since the on-off valve cannot be kept open,
To dry the inside of the cleaning tank when not in use.
The drain cannot be opened to the drain pipe
There's a problem. Therefore, it is necessary to dry the inside of the cleaning tank.
There is a problem that it is difficult to perform important work to secure the life. (2-2) Power failure while collecting chemicals in the cleaning tank
When the recovery occurs, the recovery operation stops and the chemical solution is
If it is left, the material to be washed and disinfected
It may be damaged by being immersed in the chemical for longer than necessary.
There is it. The present invention has been made by focusing on the above circumstances.
The purpose is to make the valve opening / closing mechanism small and open / close switching speed.
High accuracy and no errors when switching between open and closed.
The reliability can be improved and the power of the device is turned off.
Can also maintain any valve state, and furthermore, not used
Occasionally the drain line of the cleaning tank is connected to the downstream line for drainage.
Cleaning tank
Is easy to dry, and the valve position at that time is maintained even in the event of a power failure.
It is an object of the present invention to provide an endoscope cleaning / disinfecting device that can be held. According to the present invention, there is provided a liquid cleaning apparatus comprising:
Multiple downstream pipelines are connected to the outlet that discharges
Connection between the discharge port and each downstream pipe
The drainage from the discharge port is appropriately sent to each of the downstream pipes.
Endoscope cleaning and disinfection provided with means for switching pipelines
In the device, a solenoid is used for the above-mentioned conduit switching means
A valve opening and closing mechanism is provided, and the solenoid
Maintains the valve open / closed state by the above solenoid when power is cut off
Endoscope cleaning and disinfecting device provided with holding means
Place. [0016] A multiple unit connected to the discharge port of the cleaning tank is provided.
Solenoid on-off valves that open and close each downstream pipeline
Between the discharge port of the cleaning tank and the plurality of downstream pipes.
The connection state of the pipeline is switched. At this time, the solenoid
The open / close state of the on-off valve driven by the attraction force is determined by a permanent magnet or
Switch, and shut off the power applied to the solenoid.
Also, the open / close state of the on-off valve at that time can be maintained.
By driving each on-off valve with the solenoid,
The valve opening / closing mechanism can be made smaller, and the opening / closing switching speed can be increased.
You. Furthermore, it can be opened only by ON / OFF control of the solenoid.
Since the position of the valve closing is determined, there is no position error and reliability is improved.
I can do it. In addition, latch solenoid, latch catch
By holding the position of the on-off valve with a simple holding mechanism such as
Arbitrary valve status can be maintained even when the device is turned off
This allows the cleaning bath to dry when the equipment is not in use.
The drain port of the cleaning tank was opened to the drain pipe side of the device for the purpose
State, and even during a power failure,
The valve position can be maintained. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described.
Will be described with reference to FIGS. 1 and 2A and 2B.
FIG. 1 is a schematic diagram of the entire endoscope cleaning / disinfecting apparatus according to the present embodiment.
It shows the result. Endoscope cleaning and disinfecting apparatus of the present embodiment
The apparatus is provided with a cleaning tank 2 for the endoscope 1. This wash
A used endoscope 1 is installed inside the tank 2. The upper opening of the cleaning tank 2 is closed.
A lid 3 for closing is mounted. Further, the bottom of the cleaning tank 2
For example, we attached a Langevin type ultrasonic transducer
A diaphragm 4 is provided. Then, cleaning from the diaphragm 4
Ultrasonic vibration is oscillated in the cleaning liquid in the tank 2.
You. In the center of the cleaning tank 2,
A tower 5 is provided for the purpose of reducing the amount of liquid. Inside this tower 5
On the side, a heater 6 for heating and keeping the liquid in the cleaning tank 2 is provided.
It is provided. Further, the endoscope operation unit holding unit 41 is provided in the tower 5.
Is provided. The endoscope operation section holding section 41 is cleaned.
When setting the endoscope 1 in the tank 2, it is easy to set
It is designed to move so that a part becomes a temporary table.
Further, a ceiling washing nozzle 23 is provided on the upper surface of the tower 5.
Have been. The inner surface of the cleaning tank 2 is provided with a flowing liquid jet port.
7, injection port 18, channel connection port 22, connection for water leakage detection
Connection openings 38 are provided respectively. Further, the cleaning tank 2
Drain port (discharge port) 14 and circulating fluid suction
Inlets 20 are provided respectively. Here, the injection port 18 is connected to the water supply line 15.
One end is connected. The other end of the water supply pipe 15
Is connected to a water supply source 16 such as tap water. Further
In addition, a water supply valve 17 and a water supply filter 1
0 and a check valve 11 are provided respectively. Soshi
For example, the washing water from the water supply source 16 such as tap water is supplied to the water supply system.
Water supply valve 17, water supply filter 10 and
And supplied from the inlet 18 into the cleaning tank 2 through the check valve 11.
It is supposed to be. Further, the main body of the cleaning / disinfecting apparatus has a flowing liquid cleaning.
Pipe 9 and a pipe 19 for cleaning inside the scope pipe are provided.
Have been. These liquid washing line 9 and the scope tube
One end side (suction side) of the pipe 19 for cleaning inside the channel is a circulating fluid.
It is connected to the suction port 20. Further, the other end of the flowing liquid washing pipe 9 (spout
Side) is connected to the liquid jet port 7. Furthermore, this style
A pump 8 for flowing liquid cleaning is provided in the middle of the liquid cleaning pipe 9.
Is established. When the pump 8 is driven, the cleaning tank 2
The liquid inside the circulating fluid suction port 20 flows through the rinsing fluid washing pipe 9.
Pump 8 for washing the flowing liquid
High-pressure water discharged from the outlet passes through the washing line 9
The liquid is sent to the flowing liquid jet port 7 and the washing tank is
2 are injected. From this spout 7
Is sprayed with high-pressure water.
It is very well washed. In the cleaning line 19 in the scope channel,
A pump 21 for cleaning the inside of the scope pipeline is interposed in the middle part.
I have. Further, for cleaning the inside of the scope pipeline in the pipeline 19
On the discharge side of the pump 21, two pipelines 24 and 27 are branched.
It is formed. Here, one branch line 24 is an electromagnetic on-off valve.
26, it is connected to the ceiling surface cleaning nozzle 23.
Further, the other branch line 27 is connected via an electromagnetic valve 25.
It is connected to the channel connection port 22. The channel connection port 22 is provided inside the cleaning tank 2.
One end of the endoscope conduit cleaning tube 28 disposed in the
Are linked. This endoscope conduit cleaning tube 28
The other end is an endoscope mounted on the endoscope operation unit holding unit 41.
It is connected to various channels of the mirror 1. Then, the pump 21 for cleaning the inside of the scope pipeline is provided.
When the pump is driven, the liquid in the washing line 9 flows to the pump 21 side.
And from the outlet of this pump 21
The discharged high-pressure water passes through the cleaning pipe 19 in the scope pipe.
And supplied to the two branch lines 27 and 24, respectively.
Swelling. Here, the high pressure supplied to the pipe 27 side
Water is sent to the channel connection port 22 via the solenoid on-off valve 25
Then, the endoscope 1 is passed through the endoscope conduit cleaning tube 28.
It is designed to flow into various channels. Further
In addition, the high-pressure water supplied to the pipe line 24
After that, it is sent to the ceiling cleaning nozzle 23,
The nozzle 23 is sprayed into the cleaning tank 2.
You. Further, the cleaning pipe 19 for cleaning the inside of the scope pipe is provided.
Upstream of the branch of the two conduits 24, 27
The tip of the air supply line 30 in which the check valve 29 is interposed is
Are linked. At the base end of the air supply line 30
The compressor 31 is connected. And Comp
When driving the lesser 31, the compressor 31
The compressed air of the endoscope is connected to various channels 22 and the ceiling
The water is sent to the surface cleaning nozzle 23 to remove water.
I have. The water leak detection connection port 38 has a water leak detection port.
One end of the conduit 39 is connected. This leak detection pipe
The other end of 39 is connected to an air pump 40. Sa
In addition, a water leak detection connection port 38 is provided in the cleaning tank 2.
One end of a water leak detection tube 37 is connected. This
The other end of the water leak detection tube 37 is connected to the endoscope 1.
ing. And the air sent from the air pump 40
Through the leak detection pipe 39 and the leak detection tube 37
Supply to the endoscope 1 to detect water leakage from the endoscope 1.
I have come to know. Further, a disinfectant solution is provided on the main body of the cleaning / disinfecting apparatus.
A tank 32 is provided. In this disinfectant tank 32
Denotes a chemical solution recovery path 42 which is an inflow pipe and an outflow pipe.
One end of the disinfecting liquid injection pipe 33 is connected to each other. here
The other end of the chemical solution recovery path 42 is connected to a pipeline switching valve described later.
Drainage port of cleaning tank 2 via mechanism (pipe switching means) 13
14. The disinfectant injection line 33 has an injection pump.
34 are interposed. Furthermore, this disinfectant injection line 3
3, the discharge side of the infusion pump 34 is connected via the check valve 12.
Connected to the water supply line 15 downstream of the check valve 11.
Have been. The pipeline switching valve mechanism 13 is connected to an upstream pipeline.
Is connected to the drain port 14 through the drain pipe 48
I have. Further, the pipe line switching valve mechanism 13 includes a downstream pipe.
Each end of a chemical solution recovery path 42 and a drain pipe 35 which are paths
Are connected. Here, the other end of the drain pipe 35 is drained.
The outside of the device is communicated via a water pump 36. The inside of the pipeline switching valve mechanism 13 is flushed.
Water is drained from the drain port 14 of the cleaning tank 2 through a drain pipe 48.
The liquid in the washing tank 2 to be drained is drained by a drain line 35 and a chemical solution collecting line 42.
A valve opening / closing mechanism 13A for arbitrarily distributing is provided.
You. FIGS. 2A and 2B show a pipeline switching valve mechanism 1.
3 shows an example. This line switching valve mechanism 13
Is provided with a substantially box-shaped housing 13B. this
Drainage is provided on one side of the housing 13B in FIG.
A connection base 13 </ b> Ba with the mouth pipe 48 protrudes. Sa
In addition, the bottom surface of the housing 13B is shown in FIG.
Two connecting bases 13Bb and 13Bc
You. And, one of the connecting bases 13Bb has a chemical solution collecting pipe.
42, the other connection base 13Bc is provided with a drain pipe 35
Each is connected. In FIG. 2B, the arrow A indicates the cleaning tank 2.
Of washing water and chemicals from the drain port 14
And enters the pipeline switching valve mechanism 13. Sa
Further, in FIG. 2 (A), the arrow B indicates the chemical solution in the cleaning tank 2.
Direction to be collected in the chemical liquid tank 32 through the collection pipe 42,
The arrow C indicates that the washing water and the chemical in the washing tank 2 are drained to the drain pipe 35.
It is the direction of water. Further, two housings are provided inside the housing 13B.
Attached to the inner ends of the connection bases 13Bb and 13Bc, respectively.
Seals 49a, 49b and two connections
The bases 13Bb and 13Bc are individually opened and closed.
On-off valves 47A and 47B are provided. Where
The on-off valve 47A has a valve shaft 45a and a valve shaft 45a.
The valve body 47a fixed to one end and the connection base 13Bb
A valve that urges the valve element 47a in a direction to press it in a closing direction
A spring 46a is provided. In addition, the other on-off valve
Similarly, a valve shaft 45b and a lower end of the valve shaft 45b
The valve body 47b fixed to the part and the connection base 13Bc are closed.
Valve spring biasing the valve body 47b in the direction of pressing
46b. Further, an on-off valve is provided on the housing 13B.
Valve opening / closing device that individually opens and closes 47A and 47B
Self-holding keep solenoid 43 constituting structure 13A
a and 43b are provided. Each keep solenoid 43
a, 43b of the solenoid shafts 44a, 44b
7A, 47B via a connecting pin at the upper end of the valve shaft 45b.
Are combined. Here, each keep solenoid 43a,
A permanent magnet (not shown) is provided inside 43b.
You. And two keep solenoids 43a,
43b, for example, on the on-off valve 47B side.
When a current on the suction side is passed through the keep solenoid 43b,
The solenoid is activated by the magnetic force of the keep solenoid 43b.
Since the solenoid shaft 44b is sucked upward, this solenoid
The valve shaft 45b connected to the shaft 44b and the valve body 47b also rise.
(The state shown in FIG. 2A), the drain pipe 48 of the cleaning tank 2
And the pipe in which the valve body 47b is open, here the drain pipe 35
It is designed to open between the two. In addition, once suction
The operated solenoid shaft 44b is connected to the keep solenoid 43b.
The power is turned on in this state because the permanent magnet
Even if the power supply is cut off due to a switch
The pipeline state can be maintained. At this time, the valve element 4 on the other on-off valve 47A side
7a is a packing 49a by the spring force of the valve spring 46a.
Is held in a state of being pressed against
It is in the state of blocking. Further, the keep solenoid 43b is
When current is applied, a magnetic force opposite to that of the permanent magnet is generated,
Since the solenoid shaft 44b is opened, the valve shaft 46b
And the valve body 47b is pressed against the packing 49b and drained.
The pipe 35 will be blocked. In addition, the other keep Soleno
The operation of the id 43a is the same.
43a makes the opening / closing valve 47A of the chemical recovery pipe line 42 the same
Is opened and closed. Then, washing water or chemical solution is stored in the washing tank 2.
The valve bodies 47 of both on-off valves 47A and 47B.
a and 47b are controlled to be closed. Also,
When collecting the chemical in the cleaning tank 2 into the chemical tank 32,
Keep solenoid 43 on the opening / closing valve 47A side of the recovery pipe 42
a through the suction side current to open the valve body 47a.
By holding the state with a magnet, the drain port 1 of the cleaning tank 2
4 will open drainage line 48 and recovery line 42
Swelling. At this time, the valve element 47 on the opening / closing valve 47B side
On the other hand, b is controlled in the closing direction. Next, the operation of the above configuration will be described.
First, when using the cleaning / disinfecting apparatus of this embodiment,
The completed endoscope 1 is set in the cleaning tank 2. At this time,
The endoscope 1 is used to minimize the amount of liquid used in each of the subsequent steps.
And wound around the tower 5 in a coiled state
Installed so that the overall height is low
You. In this state, the water leak detection tube 37 is leaked from the endoscope 1.
It is connected to the connection port 38 for water detection. At this time, two
The on-off valves 47A and 47B are held in a closed state. Thereafter, detection of water leakage from an operation panel (not shown)
By pressing the switch, for example, the water source 16 such as tap water
These washing waters are supplied to a water supply line 15, and a water supply valve 17,
The inlet 18 through the water supply filter 10 and the check valve 11
From the washing tank 2. Then, one is placed in the cleaning tank 2.
When a fixed amount of water is supplied, the air pump 40 operates and water leakage occurs.
Air through the detection pipe 39 and the water leak detection tube 37
Is sent to the water leakage detection conduit of the endoscope 1. Where
If the endoscope 1 has a hole such as a pinhole,
Since bubbles are generated from the mirror 1, it can be visually identified. After the water leakage detection is completed, the pipeline is switched.
The opening and closing valve 47B of the valve mechanism 13 is opened,
The drain pump 36 is driven. Therefore, it is stored in the cleaning tank 2.
The collected water flows from the drain port 14 of the cleaning tank 2 to the drain pipe 4
8 inside the housing 13B of the pipeline switching valve mechanism 13
After flowing into the drain, it is drained to the outside through a drain pipe 35.
It is. Then, a state in which all the water in the cleaning tank 2 is drained
Then, remove the water leak detection tube 37 and clean the endoscope channel.
Tube 28 to endoscope 1 and channel connection port 22
Connect. Thereafter, various operations on an operation panel (not shown)
Cleaning, disinfection, rinsing, and air supply
Each step is performed. Here, cleaning and disinfection time, disinfection
The user can set the temperature of the liquid using the setting panel (not shown).
Set. An example of the operation after the start is described below.
In the process, the water supply valve 17 is opened first, for example, to supply water such as tap water.
Wash water from source 16 is supplied to water supply line 15 and
After the filter 10 and the check valve 11,
Is supplied into the washing tank 2. Prior to the start of the process, the user needs to
Inject a predetermined amount of detergent into the tank. So
When a certain amount of water is supplied into the cleaning tank 2,
Is started. Here, the water in the cleaning tank 2 reaches the designated water level.
At this point, the water supply valve 17 is closed. At this time,
The cleaning pump 8 is driven. And, in the cleaning tank 2
The liquid flows from the circulating fluid suction port 20 into the flowing liquid washing pipe 9.
Discharge port of pump 8 for sucking and washing liquid
High-pressure water discharged from the tubing flows through the rinsing pipe 9
The liquid is sent to the jet port 7, and from the liquid jet port 7,
Injected to. Thereby, in this step, the endoscope 1 is attached to the endoscope 1.
Large dirt, soft dirt, light dirt, etc. on the washing tank
The liquid flow swirling in 2
The liquid is washed by the impact force of the liquid, and the dirt is removed. Further, the endoscope 1 in the cleaning tank 2 is disinfected later.
Sprinkle around the tower 5 to minimize the amount of disinfectant in the process
It is installed so that the height is low like a filter.
At the time of cleaning, the endoscope operation section holding section 41 is raised or
Is moved up and down. Thereby, the endoscope 1 in the shape of a cobblestone
There is a gap in the overlapping part of the insertion part, and strong cleaning is surely performed.
I can. Then, the predetermined washing of the flowing liquid is performed.
When the process time ends, the diaphragm on the bottom of the cleaning tank 2
The ultrasonic transducer 4 is driven to perform ultrasonic cleaning.
In this ultrasonic cleaning, hard dirt attached to the endoscope 1 or
Dirt and the like of the complicated shape part is strongly removed. Thereafter, when the ultrasonic cleaning step is completed,
Washing is performed. In this step, ultrasonic cleaning is used.
And the dirt that has come off from the endoscope 1
It is. Further, when the washing process is completed, the pipeline switching valve mechanism
The thirteenth on-off valve 47B is opened, and the drain pipe 35 is opened.
At the same time, the drain pump 36 is driven to clean the inside of the cleaning tank 2.
The liquid is discharged outside. After draining of the washing liquid, the water supply valve 17 is turned off.
Open and fresh water is supplied into the cleaning tank 2 and rinsing is performed.
And the pump 21 for cleaning the inside of the scope pipeline is driven.
It is. At this time, one of the solenoid on-off valves 25 is opened,
The other solenoid on-off valve 26 is kept closed. And
When the pump 21 is driven, the liquid in the flowing liquid washing pipe 9 is removed.
While being sucked into the pump 21 side, this pump 21
High-pressure water discharged from the discharge port of the scope is used for cleaning inside the scope pipeline
The water is supplied to the pipe 27 through the pipe 19. In addition, the tube
The high-pressure water supplied to the channel 27 side passes through the electromagnetic on-off valve 25
The tube is sent to the channel connection port 22 and the endoscope channel cleaning tube is
Into the various channels of the endoscope 1 through the
You. During the rinsing step,
The electromagnetic switching valves 25 and 26 are opened at the set time and number of times.
Closing is operated in reverse. Then, the solenoid on-off valve 26 is opened.
Then, the high-pressure water discharged from the discharge port of the pump 21 is
It is supplied to the pipe line 24 through the cleaning pipe line 19 in the scope pipe line.
Be paid. At this time, the high-pressure water supplied to the pipeline 24 is
It is sent to the ceiling surface cleaning nozzle 23 via the electromagnetic on-off valve 26,
It is injected into the cleaning tank 2 from this ceiling surface cleaning nozzle 23.
You. As a result, the fuel is injected through the ceiling cleaning nozzle 23.
The ceiling surface in the cleaning tank 2 is cleaned with the rinse water.
You. In the latter half of the rinsing step, the scope
When the cleaning pump 21 in the pipeline is stopped,
The lesser 31 is turned on. At this time, the solenoid on-off valve 2
Compressor 31 by switching the opening and closing of 5, 26
The air sent from through the channel connection port 22
The inside of the various channels of the endoscope 1 and the ceiling cleaning nozzle
Supply to each other, clean inside various channels of endoscope 1 and ceiling
The drainage of the conduit 24 is performed. After the rinsing step is completed,
A disinfection process is performed. In this disinfection process, first switch the pipeline
The two on-off valves 47A and 47B of the valve mechanism 13 are closed.
At the same time, the infusion pump 34 is driven. This
The disinfectant in the disinfectant tank 32 is
From the injection port 18 to the cleaning tank 2 through the disinfectant injection line 33
Supplied. At this time, supply water pipe 15 and disinfectant solution
Water supply and disinfection by the check valves 11 and 12 of the inlet pipe 33
Backflow with the liquid is prevented. Then, the disinfectant stored in the washing tank 2 contains
The entire endoscope 1 is completely immersed. At this time, the scope tube
The cleaning is performed by turning on the road cleaning pump 21.
The disinfecting solution in the tank 2 is supplied to the channel connection port 22,
Disinfection in various channels of the endoscope 1 is performed. This disinfection
Depending on the process, the disinfecting solution may flow to all dirty pipes in the equipment.
Therefore, the inside of the device can be automatically disinfected. When a predetermined time has elapsed, the pipeline is switched.
The on-off valve 47A of the valve mechanism 13 is opened. This
Then, the chemical recovery path 42 is opened, and the disinfectant in the cleaning tank 2 is disinfected.
The liquid is collected in the liquid tank 32. After the end of the disinfection step, the rinsing is continued.
A cutting step is performed. After this rinsing step, the compressor
Of the endoscope 1 by driving the
Is performed completely. Further, after a certain period of time, the drain pump 36
Stops. After the last step is completed, the remaining water is
The opening and closing valve 47B of the pipeline switching valve mechanism 13 is opened so that there is no
It is operated and held in an open state on the drain pipe 35 side. Therefore, the following effects are obtained with the above configuration.
Play a fruit. That is, the endoscope cleaning and disinfecting of the present embodiment
In the apparatus, the liquid discharged from the drain port 14 of the cleaning tank 2 is used for collecting a chemical solution.
Pipe line switching valve for appropriately distributing to pipe line 42 and drain line 35
The mechanism 13 is provided with a self-hold type keep solenoid 43a, 43
With the provision of valve opening / closing mechanisms 13A and 13B using b
Also, when the power supply to the solenoids 43a and 43b is cut off, the solenoid
Permanent magnet that keeps the valve open / closed by the ids 43a and 43b
Stones are provided. Therefore, with the device turned off
Of the self-holding keep solenoids 43a and 43b
Arbitrary valve state can be maintained by magnet
Therefore, the number of parts of the valve opening / closing mechanisms 13A and 13B is reduced.
Costs can also be reduced. Further, the valve opening / closing mechanism 13
Since A and 13B can be designed to be small, the size of the device can be reduced.
There is also a clear effect. Further, the discharge direction of the liquid in the cleaning tank 2 can be instantaneously changed.
Since switching can be performed accurately, the switching speed of opening and closing is also
It can be made high and there is no error when switching between open and closed.
This has the effect of shortening the time and increasing the reliability. Further, when the apparatus is turned off when not in use,
In this state, the drain port 14 of the cleaning tank 2 is communicated with the drain pipe 35 side.
Can be held open when
There is an effect that the washing tank 2 is easily dried and hygiene is easily ensured. Further, a power outage occurs while the chemical solution in the cleaning tank 2 is being collected.
Wake up or user accidentally turned off the power switch
The state of the pipeline is maintained even if
To be continued. Therefore, no chemical solution remains in the cleaning tank 2.
In this case, the disinfectant to be washed is immersed for an unnecessarily long time.
This has the effect of improving safety. FIGS. 3A and 3B show a second embodiment of the present invention.
1 shows an embodiment of the present invention. This embodiment is a first embodiment.
Internal view of the embodiment (see FIGS. 1 and 2A and 2B)
Valve opening / closing of the line switching valve mechanism 13 in the mirror cleaning / disinfecting apparatus
The structure of the mechanism 13A is changed as follows. That is, the pipeline switching valve device of the present embodiment
The frame 13 has a substantially box-shaped housing as in the first embodiment.
13B is provided. In this housing 13B
A connection base 13Ba for connection with the drain pipe 48 is provided on one side.
(See FIG. 2 (B)), two on the bottom of the housing 13B.
The connection bases 13Bb and 13Bc of FIG.
(A)). In addition, in FIG. 3 (A) and (B), two
Only one of the connection bases 13Bb and 13Bc
It is shown. And one of the connection bases 13Bb
A drain pipe is connected to the chemical recovery pipe 42 and the other connection base 13Bc.
The roads 35 are connected to each other. Further, FIG.
In (A) and (B), an arrow B indicates, for example, a medicine in the cleaning tank 2.
The direction in which the liquid is collected in the chemical tank 32, or in the cleaning tank 2.
In the direction of draining the washing water and chemical solution through the drain pipe 35
is there. In the housing 13B, two
Attached to the inner ends of the connection bases 13Bb and 13Bc, respectively.
Seal 58 and two connecting bases 13B
open / close valve 57 for individually opening and closing b and 13Bc
Are provided. Here, each on-off valve 57 has a valve shaft 5.
5 and a valve body 57a fixed to one end of the valve shaft 55.
And the direction to close the connection base 13Bb or 13Bc.
And a valve spring 59 that urges the valve body 57a in the direction of pressing the same.
Is provided. The pipeline switching valve mechanism 1 according to the present embodiment
A direct-acting solenoid 50 and a key
A latch latch 53 is provided. Where the direct acting
A solenoid shaft 51 driven to protrude and retract is provided in the solenoid 50.
Is provided. The end of this solenoid shaft 51 is
One end of the link arm 52 is rotatably connected.
This link arm 52 has a pin 6
It is rotatably supported at zero. In addition, this link
The other end of the arm 52 is rotatable about the valve shaft 55 of the on-off valve 57.
Are linked. A spherical portion 56 is provided at the upper end of the valve shaft 55.
Is formed. Further, the valve is opened and closed above the valve shaft 55.
Catch latch 53 for keeping valve 57 open
Is arranged. This catch latch 53 can be opened and closed
A plurality of holding claws 54 are provided. And FIG.
As shown in (B), the spherical portion 56 of the valve shaft 55 is a catcher.
Is held in a state inserted between the holding claws 54 of the switch 53
It has become. Next, the operation of the above configuration will be described.
FIG. 3A shows that the on-off valve 57 is held in the closed state,
The drain pipe 48 connected to the drain port 14 of FIG.
Pipe (chemical recovery pipe 42 or drain pipe 35) closed
Indicates the status that is being performed. At this time, the solenoid shaft 51
The valve body 57a is projected above the solenoid 50, and the valve body 57a is a valve spring.
Pressed against the packing 58 by the spring force of 59
And the chemical recovery pipe 42 or the drain pipe 35
It is in the state of blocking. In this state, current is applied to the solenoid 50.
The solenoid shaft 51 is pulled inside the solenoid 50.
Will be absorbed. With the operation of the solenoid shaft 51,
The link arm 52 rotates about the pin 60, and the valve shaft 55
By moving upward, the valve body 57a is raised, and the on-off valve 57a is opened.
Is opened. Then, as shown in FIG.
55 is inserted into the catch latch 53.
And is held by the holding claws 54 of the catch latch 53.
Thereby, the drain pipe connected to the drain port 14 of the cleaning tank 2
Channel 48 and a channel in the B direction (chemical solution recovery channel 42 or drain pipe
Road 35) is opened. At this time, the valve body 57a
Is mechanically held by the catch latch 53.
The open / close valve 57 remains open even if the power is turned off.
Be held. Then, when the solenoid 50 is again
During this time, the valve shaft 55 rises and catches
Since the mechanical holding of the latch 53 is released, the valve body 57a
To the packing 58 that closes the pipe again by the valve spring 59
It is pressed. The on-off valve 57 of the chemical recovery pipe 42 is
The opening / closing valve 57 of the drain pipe 35 operates by the same mechanism.
The drain port 1 of the cleaning tank 2 based on the opening / closing operation of the on-off valve 57
4 and a line in the direction of arrow B (chemical solution
Controls communication with the intake line 42 or drainage line 35) and blockade
it can. Therefore, in this embodiment, the drainage of the cleaning tank 2 is
The drainage from the port 14 is supplied to the chemical recovery passage 42 and the drainage line 35.
Opening / closing mechanism 1 of the pipeline switching valve mechanism 13 which is appropriately distributed to
3A has a direct acting solenoid 50, a catch latch 53,
To catch the solenoid 50 when power to the solenoid 50 is cut off.
The open state of the on-off valve 57 is mechanically held by the switch 53.
To catch even when the device is turned off.
Arbitrary valve state can be maintained by the latch 53
You. Therefore, this embodiment is the same as the first embodiment.
The same effects can be obtained. FIGS. 4A and 4B show the first embodiment.
(See FIGS. 1 and 2 (A) and (B))
1 shows an example of a connector section for connecting between an endoscope 1 and a cleaning tank 2.
It is something. 4 (A) and 4 (B), reference numeral 69
Is a wall surface of the cleaning tank 2. The wall 69 of the cleaning tank 2
A channel is formed in the attached channel connection port 22.
Base member 66 and a connector body 64 are provided.
I have. And the base member 66 is interposed via the packing 67.
It is fixed to a wall surface 69 by a nut 68. The connector body 64 includes a packing 65.
Screwed into the base member 66 through the
ing. Further, a conduit is opened inside the connector body 64.
Close the valve body 62 to be closed and the internal conduit of the connector body 64
The spring 63 for urging the valve body 62 in the direction
I have. Here, as shown in FIG.
When the internal conduit of the connector body 64 is closed, the connector body 6 is closed.
4 is formed so that the position of the end face and the position of the surface coincide.
ing. A connector body is provided on the outer peripheral surface of the valve body 62.
A ring-shaped member 64v which is joined to the valve seat 64v of the internal pipe 64.
A packing 70 is mounted. And the connector body
At the time of the opening operation of the valve 64, the valve body 62 of the channel connection port 22 is closed.
Pushed in against the spring 63, the valve seat of the connector body 64
64v and the packing 70 of the valve body 62
And open the pipeline. Further, the outer peripheral surface of the connector
Of the channel connection port 22 on the side of the joint with the base member 66.
A ring-shaped rib 74 is protruded, and a ring-shaped
The packing 71 is mounted. Further, one of the tubes 28 for cleaning the endoscope channel is used.
At the end attach / detach to the connector body 64 of the channel connection port 22
The female connector 61 that can be connected is connected.
You. The female connector 61 has an endoscope channel cleaning tube.
Push pin 72 in an internal conduit 61a communicating with the
Is protruding. This push pin 72 is channel connected
The opening 22 is disposed at a position corresponding to the valve body 62. Sa
In addition, a channel is connected to the outer peripheral surface of the female connector 61.
Locking pawl 7 that is detachably engaged with a rib 74 on the mouth 22 side
3 are provided. Then, the female connector 61 and the channel
When connecting to the connection port 22, connect the channel connection port 22
Is inserted into the female connector 61.
You. At this time, the push pin 7 inside the female connector 61
2 pushes the valve body 62 of the channel connection port 22 and the connector
Of the valve body 62 from the valve seat 64v of the
0 is cut off to form a conduit. That
In this case, the packing 71 of the connector body 64 is a female connector.
Fits to the inner peripheral surface of 61 to keep the structure confidential
ing. At the time of coupling, as shown in FIG.
The tip of the lock claw 73 of the female connector 61 is a channel.
The female connector 6
1 and the connector body 64 of the channel connection port 22
The connection is not accidentally disconnected. That is,
Female connector 61 and channel connector 22 connector
To connect with the main body 64, push the other end of the lock claw 73
Do not release the hook between the tip of the hook 73 and the rib 74
As long as it does not come off. In addition, female connector
61 and the connector body 64 of the channel connection port 22.
When disengaged, the valve body 62 is returned to its original position by the spring 63.
Pushed back to a position that closes the internal conduit of nectar body 64
It has become. Therefore, in the above configuration, the valve 6
2 and packing 70 are damaged, from inside cleaning tank 2
Remove the connector body 64 from the base member 66
The main body 64 can be maintained. Therefore, outside the device
Remove channel parts from inside the device
Extremely maintainable because there is no need to remove the whole
Is getting better. Further, the valve element 62 is as shown in FIG.
When the internal conduit of the connector body 64 is closed
The shape of the main body 64 is adjusted so that the position of the end face matches the position of the surface.
Channel connection port 22 upward.
There is no residual liquid such as water droplets on the surface even if
It has a structure. FIGS. 5A to 5D show FIGS.
(B) for cleaning an endoscope channel in the endoscope cleaning / disinfecting apparatus
Change of the connector part connecting the tube 28 and the cleaning tank 2
It shows a form example. Note that FIGS. 5A to 5D illustrate
A plurality of endoscope channel cleaning tubes 28 are connected to the channels.
When there is a combination of the opening 22, each combination
This is an example for explaining a means for preventing an error due to foreshortening.
Here, the female connector of the endoscope conduit cleaning tube
As shown at 61 in FIG.
A first female connector 61a shown in FIGS.
Second female connector 61b shown in FIGS. 5C and 5D
Are provided, and the channel connection port 22 is
Similarly, two types of connector books are used as the connector body 64.
Body, the first connector shown in FIGS. 5B and 5D
The main body 64a and the second connector shown in FIGS.
And a main body 64b. First, FIG. 5A shows an unsupported channel.
The second connector body 64b of the tunnel connection port 22 and the endoscope tube
The first female connector 61a of the road cleaning tube 28;
Shows an example of a state where the two cannot be connected.
You. Here, the holding claws 7 of the first female connector 61a
3a abuts against rib 74b of second connector body 64b
Or it is difficult to insert. And push hard
If it is attempted, the protrusion 75 of the connector body 64b is
Do not hit the entrance of the connector 61a
It has become. FIG. 5 (B) shows a case in which
First connector main body 64a of channel connection port 22 and endoscope
First female connector 61 of mirror channel cleaning tube 28
a shows a state in which both are connected. here
Then, the female connector of the endoscope conduit cleaning tube 28
61a and the first channel connection port 22 corresponding thereto.
The connector body 64a is properly fitted.
You. In this state, the holding claws 73a of the female connector 61a
Of the first connector body 64a having a shape corresponding to the
Is correctly engaged over the bush 74a. FIG. 5 (C) shows a properly corresponding channel.
Internal view of second connector body 64b of channel connection port 22
Second female connector 61 of tube 28 for cleaning the mirror conduit
b shows a state where both are connected. here
Then, the female connector of the endoscope conduit cleaning tube 28
61b and the second channel connection port 22 corresponding thereto.
The connector body 64b is properly fitted.
You. Also in this case, the holding claws 73b of the female connector 61b
A rib of the second connector body 64b having a corresponding shape
74b is correctly engaged. FIG. 5D shows an unsupported channel.
The first connector body 64a of the tunnel connection port 22 and the endoscope tube
The second female connector 61b of the road cleaning tube 28;
Shows another example of a state where the two cannot be connected.
You. Here, the thickness of the first connector body 64a is
Is thicker than the entrance of the female connector 61b.
I can not come. Further, the present invention is limited to the above embodiment.
It is not intended to depart from the spirit and scope of the present invention.
Of course, various modifications can be made. Next, other than this application
The characteristic technical matters of are described below. (Appendix 1) In the endoscope cleaning and disinfecting device,
The switching valve mechanism that distributes the liquid to a plurality of conduits as appropriate
Use a solenoid to open and close the valve to maintain the open state.
Endoscope washing having holding means for carrying out
Disinfection equipment. (Additional Item 2)
Characterized by using a keep solenoid for the holding means
Endoscope cleaning and disinfecting device. (Additional Item 3) In the above-mentioned additional item 1,
Characterized by the use of a latch catch for the holding means
Endoscope cleaning and disinfecting device. (Prior Art in Appendix 1) Current Pipeline Switching
The valve mechanism is a single shaft combining a motor and a gear.
Move the two valves horizontally to guide the liquid in the cleaning tank out of the tank
Discharge the pipeline to the collection pipeline and outside the device
It can be arbitrarily switched to a drain pipe, and a photo sensor
Controls the valve position. Also, simply two Soleno
A set for opening and closing the valve by directly connecting the axis that drives the valve to each
There is also a method in which two pipes are switched by combination. (Problem to be Solved by Additional Item 1)
In the case of motor type, slide the two valves linearly
As a result, the amount of shaft movement is large and the motor itself is large.
Therefore, the entire pipeline switching valve mechanism is very large.
The operation is slow to secure the motor torque.
Therefore, it takes time to switch pipes,
There is a problem that the time is extended. Valve position control
Reading the light shield plate attached to the control with the photo sensor
However, the light blocking plate may be bent due to some external factors,
If the sensor is interrupted or malfunctions, the correct valve position
In some cases, control was lost. Many component parts
There was a problem that the cost was high. On the other hand, in order to solve the above problem, Soleno
There is also a switching valve that opens the valve directly with the valve.
The valve can be kept open with the power supply turned off.
There was a problem that can not be. Wash when not in use as a washer
Open the drain port of the tank to the drain pipe to dry the inside of the cleaning tank
It is important to maintain sanitation in order to ensure hygiene.
This is a problem. Sprinkle the chemical in the cleaning tank
If a power failure occurs during collection, the collection operation stops and the cleaning tank
The chemical solution remains in the inside, and more than necessary
Can be soaked for long periods of time and be damaged. (Purpose of Supplementary Item 1) The above problem is solved.
The purpose is to do. (Means for Solving the Problem in Additional Item 1)
The solenoid valve drives the valve that opens and closes the pipeline to switch
The state of the valve driven by the suction force of the solenoid is
Or latch mechanism to reduce the power applied to the solenoid.
Be able to maintain the current valve state even when shut off
And 4. Solved the problems in section That is, Soleno
By driving the actuator, the size of the mechanism can be reduced,
The switching speed of closing is also increased, and ON / O of the solenoid is performed.
There is no position error because the valve position is determined only by the control of the FF
Reliability can also be improved. In addition, latch solenoids and latches
Keep the valve position with a simple holding mechanism such as a catch.
With this function, any valve state can be maintained even when the device is turned off.
Will be able to. Dry the washing tank when the equipment is not in use.
The drain pipe of the cleaning tank is opened to the drain pipe side of the device for drying.
Can be left in the state. In the event of a power outage,
Can maintain position. (Effects of Additional Items 1 to 3) Liquid in Cleaning Tank
Can accurately and instantaneously switch the discharge direction of
This has the effect of shortening the process time and increasing reliability. Off
Since the replacement valve mechanism can be designed to be small, the production can be downsized.
There is also a clear effect. Lower costs due to fewer parts
I can do it. Open the valve with the device turned off.
As it can be held in a released state, it can be kept
With the drain port of the tank open to the drain pipe to dry the
It has the effect of ensuring hygiene. Chemicals in the cleaning tank
A power outage occurs while collecting
Even if the switch is cut off, the pipeline state is maintained
As the recovery operation is continued, chemical solution remains in the cleaning tank.
The cleaning and disinfecting material has been immersed for longer than necessary
There is no effect, so there is an effect of improving safety. According to the present invention, the discharge from the outlet of the cleaning tank is performed.
For pipeline switching means to appropriately distribute drainage to each downstream pipeline
In addition to providing a valve opening / closing mechanism using a solenoid,
Valve open / closed state by solenoid when power to solenoid is cut off
The holding means for holding the valve
Switching speed can be increased, and switching between opening and closing
There is no time error, reliability can be improved, and
Any valve state can be maintained even when the power is turned off.
When not in use, place the drain port of the washing tank under drainage.
Keep open to communicate with the downstream side
Cleaning tank is easy to dry,
There is an effect that the valve position at that time can be maintained.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall schematic configuration diagram showing an endoscope cleaning / disinfecting apparatus according to a first embodiment of the present invention. FIGS. 2A and 2B show a pipe switching valve mechanism in the endoscope cleaning / disinfecting apparatus according to the first embodiment, wherein FIG. FIG. 3 shows a pipeline switching valve mechanism in an endoscope cleaning / disinfecting apparatus according to a second embodiment of the present invention, wherein (A) shows a state in which the pipeline is closed by the pipeline switching valve. FIG. 4B is a longitudinal sectional view of the main part, showing a state where the conduit is opened by the conduit switching valve. FIG. 4 shows a connector section for connecting between an endoscope channel cleaning tube and a cleaning tank in the endoscope cleaning and disinfecting apparatus of the first embodiment, wherein (A) shows a connector of a channel connection port. FIG. 4B is a side view showing a connection state between the main body and the female connector of the endoscope conduit cleaning tube, and FIG. 4B is a longitudinal sectional view showing a separated state of the connector main body and the female connector. FIG. 5 shows a modified example of a connector section for connecting between an endoscope channel cleaning tube and a cleaning tank in the endoscope cleaning and disinfecting apparatus according to the first embodiment, and FIG. FIG. 4B is a longitudinal sectional view of a main part showing a state where the second connector main body of the mouth and the first female connector of the endoscope channel cleaning tube are combined, and FIG. A longitudinal sectional view of a main part showing a state in which the first female connector of the endoscope channel cleaning tube is combined with the first female connector;
(C) is a longitudinal sectional view of a main part showing a state where the second connector main body of the channel connection port and the second female connector of the endoscope channel cleaning tube are combined, and (D) is a channel connection port. FIG. 7 is a longitudinal sectional view of a main part showing a state where the first connector main body and the second female connector of the endoscope conduit cleaning tube are combined. [Description of Signs] 1 Endoscope 2 Cleaning tank 13 Pipe switching valve mechanism (Pipe switching means) 13A, 13B Valve opening and closing mechanism 14 Drain port (Drain port) 35 Drain pipe (Downstream pipe) 42 Chemical solution Recovery path (downstream pipe) 43a, 43b Self-holding keep solenoid

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-11-9541 (JP, A) JP-A-6-125872 (JP, A) JP-A-62-275427 (JP, A) JP-A-59-1982 141930 (JP, A) Japanese Utility Model Showa 60-166302 (JP, U) JP 2-24530 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) A61B 1/00-1 / 32

Claims (1)

(57) [Claims 1] A plurality of downstream pipes are connected to a discharge port for discharging the liquid in the cleaning tank to the outside, and a connection between the discharge port and each downstream pipe is provided. In an endoscope cleaning / disinfecting apparatus provided with a pipe switching means for appropriately distributing the drainage from the discharge port to each of the downstream pipes in a connecting portion connecting the pipes, a solenoid is provided in the pipe switching means. An endoscope cleaning and disinfecting apparatus, comprising: a used valve opening / closing mechanism; and holding means for holding a valve open / closed state by the solenoid when power supply to the solenoid is cut off.