JPS58157442A - Cleaning apparatus for endoscope - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an endoscope cleaning device that can disinfect an endoscope with a chemical solution.

In general, endoscope cleaning devices are known that do not simply clean the endoscope with cleansing water, but also disinfect it with a chemical solution after cleaning.

When disinfecting an endoscope with a chemical solution, there are two methods: one is to apply the chemical solution to the endoscope housed in a cleaning tank, and the other is to store the chemical solution in the cleaning tank and leave it for a predetermined period of time. In this respect, Kyoukubi is better, so it is being considered to use this method.

In addition to being able to supply the cleaning tank, ~
In order to recover and reuse the tS disinfectant solution, the outlet of the cleaning tank and the chemical solution tank must be connected through a valve.

By the way, in such immersion sterilization, unless a sufficient amount of chemical liquid is stored in advance in the number tank, it is not possible to supply the cleaning tank with enough chemical liquid to reliably immerse the endoscope. In the past, before the cleaning device started the disinfection operation of supplying chemical liquid from the chemical tank to the cleaning tank, it was necessary to detect whether or not the chemical tank contained enough chemical liquid. Because such a thing is not done, it is necessary that the disinfection operation is carried out without immersing the endoscope in the chemical solution. There was a risk of causing a serious injury if the endoscope was used for toilet purposes.

This proposal 8+1 was made based on the above-mentioned circumstances, and its purpose is to install a water level detection device in the G liquid tank, and use this water level detection device to detect the endoscope before starting disinfection f#Jf'F. To provide an endoscope cleaning device capable of surely performing immersion sterilization of an endoscope by detecting whether there is enough chemical solution to immerse and sterilize the endoscope.

Hereinafter, JIiM, which is one embodiment of this invention, will be explained with reference to the drawings. In FIG. 1, reference numeral 1 denotes a main body of a cleaning device as viewed from above, and a cleaning tank 2 (shown in FIG. 4) having an open top is provided inside the main body 1 of the device. The cleaning tank go opening is closed by a cover 3 that can be opened and closed. By installing an endoscope* (not shown) inside the cleaning tank 2, this endoscope can be automatically cleaned and disinfected using cleaning water and chemical solutions as described later. ing.

A fixing part 4 for the endoscope consisting of a recess is provided at the left end portion of the front end of the upper surface of the device main body l, and this fixing part 4 is used for cleaning and disinfecting the endoscope in which only the insertion part can be washed. At the same time, the operating section is installed. In addition, near the fixed part 4, an operating part VC11 installed in this fixed part 4 is connected by a tube (not shown) for supplying the S solution in the washing water to the channel of the wedding arm.
A supply port 6 of e is provided.

Furthermore, in an endoscope that can be completely cleaned, the operation section is also installed in the cleaning tank 2, so the supply ports 5 used at that time are provided in the cleaning tank z.

Further, a main panel f11ii6 constituting an operation panel is provided at the right end portion of the front end of the top surface of the device main body 1, and a Hiro sub-panel portion 8 is installed at the upper front surface of the device main body 1 below this main panel portion 6. ing. As shown in FIG. 2, the main panel section C is provided with switches and indicators that are used relatively frequently. Switches include detergent switch 10. disinfection switch 11,
An overnight switch 12, a stop switch 13, a start switch 14, and a leakage test switch 15 are provided. ! In addition, display lamps 16, 11, 1g and 111, 10 are provided near the top of each switch 10, 11, 121, and 14, 18, except for the stop switch JJ, to indicate when each switch is operated. It is being In front of the main panel section 6, there is a display section 21et that displays the type of water washing process and air blower machine during cleaning.
11b, and display sections 11C and 11a that display the water washing type and air blowing method during disinfection, and these display sections JJa~, ? Line display lamp xi above Jd
, is, za, zs, and xi are provided. Note that the display lamp 24 is for displaying the disinfection 1 side.

Furthermore, the main panel section 6 is provided with a time display 21 consisting of 4 digits 0LHD that displays the remaining time of the construction work, and on the upper right side, there is a time display 21 that displays the remaining time of the construction work. An abnormality lamp 28 is provided to indicate this. All of the switches mentioned above are touch-type switches that can be operated simply by touching them, and are also sheet-type switches whose external shapes do not protrude from the surface of the main panel section 6. Furthermore, the V displays are also provided so as not to protrude from the surface of the main panel section C. In other words, the surface of the main panel section 60 has a flat shape as a whole.

On the other hand, as shown in FIG. 3, the sub panel section 8 has switches such as a push-button type power switch 31 and a flushing time setting timer 3z consisting of a click type dial switch.
A disinfection time setting timer 33, an i-inual flush switch 34 consisting of a two-action switch, an air switch 35, and a discharge switch 31 for discharging the chemical solution in the cleaning tank 2 are provided. The two-act switch is turned on by the first operation and turned off by the second operation. In this way, since the sub-panel section # is mainly installed with those having a low usage md, even if this sub-panel s8 is located at a deep part of the At1 surface section of the apparatus main body 1, there is no problem in its use.

Next, the internal structure of the device main body 1 will be explained based on FIG. 4. Inside the device main body 1 are a water tank 40 and a detergent tank 4.
1 and a chemical tank 41 are provided. The upper part of the water supply tank 40 is connected to a tap water faucet 45, which is a water supply source, via a filter 43 and a first switching valve 44.

Furthermore, a first water level detection device 46 is provided within the water supply tank 40 . This first water level detection device 46 has contacts lA1 to third contacts 11s4 that detect water levels at different heights.
Fa, 47b, 4rc, these contact portions 47a,
The on/off states of 4Fb and 4Fe are used to control each of the Hajima devices as will be described later. Furthermore, one end of a communication pipe 48 is connected to the upper part of the water supply tank 40.

The other end of this communication pipe 48 communicates with the cleaning tank IK,
The air in the water supply tank 40 has been vented and too much cleaning water has been supplied to the water tank 40! + It is now possible to escape to the above-mentioned Konojo Adoration 2.

Furthermore, a water supply pipe 49 is connected to the bottom of the water tank 40. This water supply v49 communicates with the first liquid pump 51 through the second switch yP50. Further, the middle part of the water supply pipe 49 is connected to a third switching valve 52 and an orifice 5.
3 to the detergent tank 4, and is further connected to the detergent tank 4 through the tank 2.
cleaning tank 2 via liquid bonder 54 and filter 55
It is connected to a rotating nozzle 55 provided inside. This rotating nozzle 55 is rotationally driven by a first motor 56.

Further, a water level detection device 51 #I2 is provided in the g liquid tank 42. This second water weeping horizontal/unloading device 51
are first to third contacts 1dr511a, 58b, which detect the different water levels of the liquid stored in the chemical tank 42;
Sac, and these fitting point portions 58a, 58b, 58c
It communicates with a plug 51 which controls various devices as described below depending on the on/off status of the switch. Further, a third switching valve 61 having three positions is connected to the upper part of the chemical tank 42 and is switched by a second motor 60 via a cam (not shown). That is, the fifth switching valve 61 is formed with two outflow ports and one inflow port, and the chemical solution tank 42 is connected to one of the outflow ports. A drain pump 62 is connected to the other outflow port, and the inflow port is connected to the bottom of the cleaning tank I. And the fifth switching valve 61
A first state in which the cleaning tank 2 and the chemical tank 42 are in communication, a second state in which the outflow of liquid from the cleaning tank 2 is blocked, and a third state in which the cleaning tank 2 and the drain pump 6z are in communication with each other. It is designed to switch.

First, a sixth switching valve 63 is connected between the discharge ports of the liquid pump 51 of W41. This sixth switching valve 63 has two outlets, one of which communicates with the cleaning tank 2, and the other of which communicates with the mixing header 65 via the first check 64.
The discharge side of the second liquid pump 54 is connected to the header 65 via a second check valve 66, and a third check valve 61 is connected to the header 65. A first air pump 68 is connected thereto. A seventh switching valve 69 is connected between the first air pump 68 and the third check valve 67.
The mixing ladder 6 is turned on only when the ladder 9 is driven to the closed state.
5 is supplied with pressurized air. moreover,
The mixing ladder 65 is provided with a supply port 5 similar to the supply port 5 provided on the outside of the device main body 1, and the supply port 5 is used when cleaning the entire washable endoscope. 15・
The channel 10 of the endoscope is connected to...

Also, upper ICt! A third water level detection device d is installed in the Ic septic tank 2.
illvz is provided. This third water level detection device 171 has a first fitting point portion 72 that detects water levels at different heights.
a and a second contact portion 12b, these contact portions 72
Each of the 111 devices is controlled as described later by the on/off state of ae72b.

Furthermore, a second air pump 3 is provided within the device main body l. OE from this second Air Pong Gua 3
@Is the air inside through the relief valve 14? J! It is supplied to the inside of the endoscope from a connection port (not shown) provided in the connector 75 of the universal cord J. Therefore, if compressed air is supplied while the entire endoscope is immersed in cleaning water in the cleaning tank 2, if there is a hole in the outer skin of the endoscope, this can be detected by the air leaking from the hole. It is now possible to do so. Additionally, if compressed air is supplied when cleaning or disinfecting an endoscope, even if there is a hole in the endoscope's outer skin, it will prevent the chemicals in the cleaning water from seeping into the endoscope. can.

On the other hand, the first to third contact portions Jy&, 4yb, and 41c of the first water level detection device 46 are connected to CPUF# as a control portion, as shown in FIG. S. If the first contact part 47a is on before starting the cleaning device, it means that enough cleaning water is being supplied to the water tank 40, so according to No. 16 from the CPU 76, The switching valve 44 of @1 is closed.

When the washing (P) device starts and enters the washing room, the water level in the water tank 40 decreases.
71) is turned off, the first switching valve 44 is opened by the CPUr6 in response to the signal, and cleaning water is supplied to the CNa water tank 40.

That is, the water level of the water supply tank 40 is determined by the first contact portion 47a.
and the second contact $47b. f, fc
If the second reversal point 47b is off before starting the cleaning device f, it means that the cleaning water necessary for cleaning work is not stored in the water supply tank 4o in advance, so at that time, the cleaning is started by a signal from the CPU 76. It is now impossible to start the device. More water t'
56, the drain pump 62, and the first air pump 68 are stopped, and the second motor 60 causes the fifth switching valve 61 to shut off the cleaning tank 2 and return to a good state. At the same time, the second switching valve 50, the third switching valve 52, and the fourth switching valve 59 are switched to the closed state.

That is, the cleaning device is stopped. Further, at this time, an abnormality rung 28 provided on the main panel section 6 lights up, and a buzzer (not shown) sounds to indicate this fact.

Further, the first to third contact portions 58a, 511b, and 58c of the second water level detection device 5r are connected to the CPU 7/6, which is a control portion, as shown in FIG. This first contact portion 58& is for detecting an abnormal rise in the water level in the chemical tank 42 (due to inflow of cleaning water, etc.). When , disinfection is performed by the signal from cpuyg.
The PC is set so that I can't start the car. In addition, the first air pump 68 of the pro 2 stops in the middle of the cleaning process, and the second motor 60 turns the fifth switching valve 61 into a state where the cleaning #2tm is cut off, and the second switching valve 52, the fourth switching valve 59 is switched to the closed state.

That is, the cleaning device is stopped.

Further, at this time, the abnormality lamp 28 provided on the main panel section 6 lights up, and a buzzer (not shown) sounds to indicate this fact. In addition, when the second contact part 5Jlb is turned on before transferring the chemical solution in the chemical solution tank 42 to the cleaning tank 2 and starting the immersion sterilization 1, it is normal, but the immersion sterilization 1
This is because when the water is turned on after the loss has started, except during the chemical recovery process, the chemical liquid leaks from the cleaning W12 into the chemical liquid tank 42 and the water level rises. When it is turned on, the coworker controls various equipment, the cleaning equipment stops, and abnormality rung 2 is activated.
8 lights up and the buzzer sounds. However, at this time, the drain pump 62 is stopped, and the fifth switching valve 61 is placed in a state where the cleaning tank 2 and the chemical solution tank 42 are communicated with each other, that is, the disinfection process is interrupted and the chemical solution is recovered. Furthermore, if the second contact sub is off from the beginning, it means that there is not enough chemical solution in the chemical tank 42 to sterilize the endoscope by immersing it. It is not possible to start it.

Furthermore, when the water level of the chemical solution tank 4z is higher than a predetermined level and the contact part SaC of Uki 3 is turned on during disinfection, that is, after a predetermined amount of chemical solution is supplied to the cleaning tank 2 and IIt is turned off, the cleaning operation is performed. When the chemical liquid leaks from the tank 2 into the chemical liquid tank 42, the first contact part 58& is turned on midway, and as in the case when the chemical liquid leaks, various devices are controlled by signals from the CPU 7g and the operation of the cleaning device is stopped. .

Further, the first contact section 72a and the second contact section v'xb of the third water level detection device 11 are connected to the CPUrG in the control section, as shown in FIG. The contact part 72h of Ml is used to detect that the water level in the cleaning tank 2 has risen too much. When this first contact part 72a is turned on during disinfection equipment, etc., the second motor 60 5 switching valve 61
is switched to a state where the cleaning tank 2 and the drain pump 62 are communicated with each other, and the drain pump 62 is operated to discharge the liquid in the cleaning tank 2. Also, at this time, among other devices, the first liquid pump 61 is stopped and the fourth switching valve 59 is closed.

Furthermore, the second contact portion 72b detects the appropriate water level of the cleaning tank 2, and /l! 1#Is When the switch is turned on during processing, the chemical solution is supplied to the cleaning tank 2 at an appropriate water level, and the chemical solution is supplied to the cleaning tank 2 at a predetermined amount during exposure, and then turned off. The chemical solution is transferred from the cleaning tank 2 to the open tank 42
Alternatively, since it is connected to the drain pump 62 side, in this case, various devices are controlled in the same way as when the first contact part 511a of the second water level detection device 57 is turned on in the middle of disinfection. The cleaning equipment will then stop.

Next, the endoscope is cleaned and disinfected using the cleaning device 1.
Let me explain about the crosspiece. First, the endoscope is installed in the cleaning tank 2. If the endoscope can be completely washed and disinfected, the entire endoscope is installed in the cleaning tank 2. And family celebration 1111O
The various channels 70 and the supply port 5 are connected with tubes (not shown). 9. Connector 15k for endoscope leakage inspection
A second air pump 78 is connected to the fk cut connection port with a tube (not shown). Put it in a state where it can move like Jin. Next, 'Mf!' of the main panel section 6! When the X inspection switch 1s is pressed, the display rung 2 on the main panel section 6 immediately changes.
0 lights up to indicate that the - leakage test is in progress. This display will continue to light up at the stage where all the leakage tests have been completed. At the same time as the tanabata 60 of the mackerel 2 is activated, the 60th switching valve 61 is closed, and the washing tank 2 is shut off.

Note that the switching operation of this fifth switching valve 61 is properly regulated by a limit switch incorporated therein. Immediately after the outflow of the sand washing tank 2 is completely cut off in this way, the second air pump 73 starts operating and supplies pressurized nitrogen between the inner walls of the endoscope. - After the second air pump 73 is activated, after a certain period of time T has passed, the second switching valve 50 is opened and the sixth switching valve d3 is switched to the state where it communicates with the air conditioner 21Iill. Furthermore, the first liquid pump 51 is activated. Therefore, the water tank 40
The cleaning water in the cleaning tank 2 is detected by the second sensing part 7 of the third water level detection device 71 provided in the cleaning tank 2. ? It is supplied until b is turned on. In this way, t! When water is poured into the lc#monk 2, the endoscope installed in the Koihinoki 2 is completely submerged in water.

Since the inside of this endoscope is pressurized with pressurized air as described above, if there is a leakage point such as a crack or a pinhole in the outer skin of the inner cotton, air bubbles will be ejected from there.

Therefore, by observing and confirming this, the location of the leak can be discovered.

Moreover, if the re-FIt leak detection switch 15 is pressed within a predetermined time, the sea bream harvesting time will be extended, but if it is not pressed, the second motor 60 will automatically operate after the predetermined time has elapsed. The switching valve 61 of No. 5 is switched to the discharge mode, and after this switching is completed, the drain bonder 62 is operated to discharge the water in the washing tank 1. The second air pump r1 also stops, but the pressurization state I in the internal space of the endoscope remains for a while. When all of the water in the cleaning tank 2 has been drained, an end buzzer sounds to notify you of this.

Next, the operation of the cleaning process using cleaning water and the disinfection process using chemical solutions will be explained. When only the cleaning process is selected, only one cleaning process is performed, but when one disinfection process is selected,
Before this, a cleaning process is performed as a step. Therefore, the case where one disinfection machine is selected will be explained. First, after setting the flushing time setting timer 32 and disinfection time setting timer 31 to the PIr fixed time, when the start switch 14 is turned on, its display lamp 19 lights up, and the remaining time is shown in the time table. Insert *'< )j (into the container 21. Also, the second motor 60 operates and switches to the fifth switching valve 61t-discharge mode. After this, 1α immediately, the second body donation pump 51 operates. At the same time, the first (1) motor 56 operates to rotate the rotary nozzle 56. At the same time, the seventh air pump 68 is switched to close and the first air pump 68 is activated. Therefore, each channel 70 of the endoscope receives the cleaning water sent from the water supply tank 40 by the second liquid pump 54 and the compression receiver <1 sent from the first air pump 68 to the private header 65. In other words, the so-called qi/ISIm is sent to channel 10, so it can be washed to channel 7 Qld: effect.
The cleaning water in the water supply tank 40 is also sent to the rotary nozzle 55 by the first air pump 68, and the cleaning water is sprayed onto the surface of the endoscope in the cleaning side 2.

However, it is also possible to permanently remove the detergent from the washing water in this washing step. When adding detergent, turn on the detergent switch 10 before turning on the start switch 14. Then, the switching valve 52 of M3 is opened for a predetermined time according to the washing time set by the washing time setting timer 32, and the detergent in the detergent tank 41 is added to the washing water, so that so-called detergent washing is performed. For example, flush time setting timer 3
When 2 is set to 3 minutes, the detergent is added for the first minute at the same time as the washing starts, and at the 5th minute, the detergent is added for only 2 minutes after 1 minute has passed from the start of washing. Furthermore, at the time of 6 minutes, the detergent is added for 3 minutes after 1 minute has passed from the start of washing. That is, when the detergent switch 10f is turned on, the time for adding detergent is automatically set according to the sand washing time set by the washing time setting timer 32, and after washing with detergent, only washing water is always supplied and the detergent is added. A so-called rinsue mallet is used for a certain period of time.

When this rinsing process is completed, the second liquid pump 54 is activated and the supply of washing water is stopped.

At the same time, the first motor 66 stops υ, and the rotating nozzle 6
5 stops rotating. However, the first air pump 68
The system operates for a certain period of time to supply only air into the internal channel 10 and discharge the cleaning water remaining therein.

Note that the drain pump 62 operates until the cleaning water in the washing fp rod 2 is completely exhausted, and then automatically stops.

The above is the cleaning process, and if only the cleaning process is selected, the process ends here. However, when the disinfection switch 11 is pressed to select the first disinfection, the first disinfection is performed following the cleaning process.

°r That is, the second motor 60 is activated and the fifth switching box 61 is switched to the cut-off state. Immediately after this, the fourth switching valve 5
When # is opened and the first liquid pump 51 is operated, the QS liquid in the aphrodisiac liquid tank 42 is supplied to the cleaning tank 2.

When the baby is immersed in the chemical solution for f minutes, the second contact part 71b of the third water cry habituation device 71 turns on and detects this, and this detection signal is input to the CPUFgK. . This causes the sixth switching valve 63 to switch and supply the chemical solution to the channel 70 of the endoscope. Then, the channel 10 is filled with the chemical solution and the third water level detection device 5r is activated.
When the third contact portion 58c is turned off, the fourth switching valve 59 is closed and the first liquid pump 51 is stopped.

That is, the endoscope not only has its outer surface, but also channel 1.
The inside of the room is also sterilized by immersion in a chemical solution.

Then, when the running time set by the disinfection time setting timer 3S has elapsed, the chemical solution recovery operation is performed. That is, the second motor O is operated to switch the inlet of the fifth switching valve 61 to the state where it communicates with the chemical liquid tank 42, and the chemical liquid in the cleaning tank 2 is returned to the chemical liquid tank 41, and at the same time, the tenth air pump 68 is activated to also discharge and collect the chemical liquid that has entered the channel 70 of the endoscope.

When this collection is completed, the second motor 60 is operated again, the fifth switching valve 61 is switched to the discharge mode, and the discharge pong 62 starts operating. At the same time, the first air pump 68 and the second liquid pump 54 are operated, and the same rinsing operation as described above is performed, and water washing is performed by a bubble flow without adding the pickpocket detergent. Mirror Outer Mountain”e
Of course, Channel 70 was also washed out. When this rinsing is finished, the second liquid pump 54 stops,
Only the first air pump 68 continues to operate to drain the channel 70.

In addition, when the overnight switch 12 is turned on instead of the disinfection switch 11 next to the disinfection 1, the endoscope is immersed in the chemical solution for a long time, for example, 10 hours, and then rinsed and drained as described above. 1 bar will be held. Such overnight disinfection is used to reliably disinfect inner mkM, which has excellent chemical resistance.

On the other hand, by turning on the manual flushing switch 34 or the air switch 35 provided on the sub-panel section 35, the above-mentioned flushing and draining can be performed. When the drain switch 36 is turned on, the liquid pump 51, the drain pump 62, and the fourth, fifth, and sixth switching valves 59 of tlIA1 are turned on.
．． 61.61 is activated and the chemical solution is discharged.

By the way, according to the cleaning device having the above configuration, the chemical solution tank 4
2, first to third contact portions 58a;

A second water level detection device 67 having 58b and 58c is provided, and the respective contact portions 58a and 68b are connected to each other.

511c to detect the water level in the chemical tank 42. That is, the first contact portion lla detects that the water level in the chemical liquid tank 42 has risen abnormally. Therefore, during the cleaning process (2) performed before the disinfection process, the fifth switching valve 61 is malfunctioning and does not switch reliably between discharges, causing cleaning water to leak into the chemical tank 42. In some cases, the first contact portion 5 may be removed before starting the disinfection process.
8a turns on, and in such a case, the signal is input to the CPU 711, making it impossible to start the disinfection process. There is no need to put it away. In addition, if the first switching valve 44 that controls the water supply to the water tank 40 or the like fails during the collection of the chemical solution that is part of the disinfection process, and the cleaning water flows into the cleaning tank 2 through the communication pipe 48,
Since the washing gauze water is collected together with the chemical solution and stored in the case, even in such a case, the water level in the chemical solution tank 42 rises abnormally, which is detected by the first contact portion 58a, and the cleaning device is stopped. That will happen. Then, when the first contact portion 58 is turned on as described above, it is determined that there is something wrong with the lamp 2.
It is displayed by lighting up 8 or sounding the buzzer.
Subsequent treatment can be carried out quickly and conveniently. In other words, the first contact part! Since I8a can reliably detect that the chemical solution has been diluted by mixing with cleaning water, it is possible to prevent the risk of unreliable immersion sterilization with diluted chemical solution. .

In addition, if the contact portion 511b of .υ2 is off before the disinfection process is started, the signal is input to the cpu 76 so that the disinfection process cannot be started. That is, the contact portion 571b of t/p, 2
is for detecting a water level lower than the first contact portion 5JIm, and if the chemical solution is placed in the chemical solution tank 42 to the point where the second contact portion 5gb is turned on, the endoscope is moved to the cleaning tank 2.
It is now possible to reliably immerse the enemy in g. Therefore, by preventing the first disinfection from starting when the contact part 5tib of the jI42 is off before the start of the first disinfection, it is possible to perform unreliable immersion disinfection with an insufficient amount of chemical solution. It can be prevented.

Further, when the chemical solution is supplied to the cleaning tank 2 to immerse and disinfect the endoscope, the second contact portion ssb is turned on, and the cleaning device is stopped when the second contact portion ssb is turned on.

That is, if the second contact part sab turns on during immersion cleaning, it means that the fifth switching valve 61 is malfunctioning and the chemical liquid is leaking from the cleaning tank 2 to the chemical liquid tank 42. This prevents unreliable disinfection with an excessive amount of chemical solution. Also, at this time, abnormality rung 28 lights up and the sipzer makes a sound, indicating that there is an abnormality.
Fresh '51: Since the tree is grown on the surface, subsequent treatment can be carried out quickly and reliably.

Furthermore, when the third contact part 58c turns on VC while the chemical liquid is stored in the cleaning tank 2 and the family gift is being immersed and sterilized, the signal is input to the CPUrg, so that the cleaning device is stopped. Natsu-C is here. That is, the third contact part 5ttc is designed to detect a water level lower than that of the second contact part sgo, and when a chemical solution is supplied to the cleaning tank 2 for the round to be sterilized by immersion, this third contact part 5ttc 5
8c is normally off. Therefore, #l during immersion erasing
The fact that the +3 contact portion 58C is turned on means that the fifth switching valve 61 is malfunctioning and does not switch reliably, and the chemical solution is leaking from the handrail 2 into the chemical tank 42. Detected by the third contact 5558c, it is possible to prevent unreliable immersion disinfection due to insufficient power. Moreover, at this time, the abnormality lamp 28 lights up and a buzzer sounds, thereby indicating that an abnormality has occurred, so that subsequent measures can be taken quickly and reliably.

As described above, the present invention provides a water level detection device in a chemical solution tank in which a chemical solution is stored, and this water level detection device
Disinfecting vJ work was prevented from starting when it was off before the start of h work. Therefore, the endoscope can be reliably sterilized because sterilization will not be performed without a sufficient amount of chemical solution in the chemical solution tank to sterilize the endoscope by immersing it.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a perspective view of the cleaning device, Fig. 2 is a plan view of the main panel section, Fig. 3 is a plan view of the sub-panel section, and Fig. FIG. 9 is a time chart diagram of the washing process and the disinfection process. 2... Washing tank, 4o... Water supply tank, 42... Chemical solution tank, 51... First liquid bonder, 54... Second liquid bonder, 51... M2 water level detection device, 58
b...Second contact portion, 76...cpty (control unit λ
Applicant's agent Patent attorney Takehiko Nishikie 111 Figure 2 Figure 3

Claims (1)

[Claims] A water supply tank containing cleaning water, a chemical tank containing a chemical solution, a cleaning tank to which the cleaning water and the chemical solution are selectively supplied by a pump, and a water level in the chemical tank are checked to see if they are normal. If the water level detection device is turned off before the disinfection operation is started, the control unit will not start the disinfection operation based on the signal.
Endoscope cleaning device modeled after ¥i.