JP7046361B2 - Endoscope cleaning device - Google Patents

Description

The present invention relates to an endoscope cleaning device for cleaning a used endoscope.

Conventionally, an endoscope cleaning device has been proposed in which a used endoscope is stored in a cleaning tank for cleaning and disinfection. In such an endoscope cleaning device, for example, there is a technique described in Patent Document 1.

The technique described in Patent Document 1 is provided with a wastewater water tank connected to a discharge port on the outside of the washing tank, a pump capable of discharging wastewater from the wastewater water tank, and a means for detecting the amount of wastewater discharged by the pump. ing. Therefore, in this technology, the amount of wastewater per wash is detected from the operating time of the pump, and it is reported whether the wash process is normal or not in comparison with the calculated amount of wash water used. There is.

Japanese Patent No. 3823171

In the technique described in Patent Document 1 described above, since the operation start timing of the pump changes depending on the initial water storage amount of the wastewater tank, minor abnormalities may be overlooked. Further, the technique described in Patent Document 1 has a problem that even if it is possible to determine whether or not the cleaning is normally completed in the cleaning process, it is not possible to identify the location where the abnormality has occurred. ..

The present invention has been made in view of such a problem, and an object of the present invention is to provide an endoscope cleaning device capable of identifying an abnormal flow path from a plurality of flow paths with one sensor.

In order to achieve such a problem, the present invention is characterized by a supply pump that supplies the treatment liquid from the supply side to the supply destination, and a plurality of the treatment liquids installed on at least one of the supply side and the supply destination. A flow path that connects the supply side and the flow path of the supply destination, and a connection path that is installed in the connection path to detect the water flow time of the treatment liquid, and the water flow time is set in advance. The combination of the water flow sensor, which is judged to be normal when the time is exceeded and is judged to be abnormal when the time is less than the set time, and the flow path on the supply side and the flow path of the supply destination are partially common to each other. It is determined whether the plurality of selected flow paths are normal or abnormal in common based on the detection result from the water flow sensor, and the abnormalities are selected from the plurality of flow paths. It is configured to include a determination unit for determining a flow path and a cleaning tank for cleaning or disinfecting the endoscope by introducing the processing liquid supplied from the supply side to the supply destination.

In the endoscope cleaning device according to the present invention, a plurality of combinations of the flow path on the supply side and the flow path on the supply destination are selected so as to have a part in common with each other, and the plurality of selected flow paths are transmitted from the water flow sensor. In order to determine whether it is normal or abnormal in common based on the detection result of, and to determine the abnormal flow path from multiple flow paths, one sensor can be used to determine the abnormal flow from multiple flow paths. It becomes possible to identify the road. Moreover, since only one sensor is required, the cost can be suppressed and the control can be simplified.

Further, since it has a connection path connecting the supply side and the flow path of the supply destination and the water flow sensor is installed in this connection path, only one connection path is required, and the structure can be simplified.

In addition, the water flow sensor detects the water flow time of the treatment liquid, determines that it is normal when the water flow time exceeds the preset time, and determines that it is abnormal when it is less than the preset time. Since the abnormality can be determined without measurement, it is not necessary to use an expensive sensor.

It is a schematic perspective view which shows the state which the opening and closing cover is removed in the endoscope cleaning apparatus of embodiment of this invention. It is a schematic vertical sectional view which shows the state which the opening and closing cover is removed in the same embodiment. It is a system diagram which shows the endoscope cleaning apparatus of embodiment of this invention. It is explanatory drawing which shows the combination example of the flow path of the supply side and the supply destination of the embodiment of this invention. It is explanatory drawing which shows the case which the abnormality is detected from the example of the combination of the flow path of the supply side and the flow path of the supply destination of the embodiment of this invention. It is explanatory drawing which shows the case which the abnormality is detected from the other example of the combination of the flow path of the supply side and the flow path of the supply destination of the embodiment of the present invention. It is a figure which shows the cumulative time detected by the running water sensor in the various solenoid valves of the embodiment of this invention. It is a figure which shows the example of the abnormality determination result in the operation process of the actual apparatus of the endoscope cleaning apparatus of this invention.

Hereinafter, the endoscope cleaning device according to the embodiment of the present invention will be described with reference to FIGS. 1 and 2.

(Endoscope cleaning device)
The endoscope cleaning device 10 of the present embodiment automatically cleans and disinfects the endoscope 11. As shown in FIGS. 1 and 2, the endoscope cleaning device 10 has a cleaning tank 13 in which the front side is formed in a concave shape, and the endoscope 11 is housed and supported in the vertical direction with the longitudinal direction as the vertical direction. I have. The washing tank 13 has a vertically long shape, and the front opening 13a and the bottom wall 13b are provided so as to be inclined forward, so that the inclination on the lower side is larger than that on the upper side. Further, the front opening 13a is covered with a transparent opening / closing cover (not shown).

As shown in FIG. 2, the bottom wall 13b of the cleaning tank 13 is provided with an endoscope support portion 15 as a storage position for storing and supporting the endoscope 11. The endoscope support portion 15 is formed so as to be supportable in a state where the endoscope 11 is upright with the operation portion 11a upward and the insertion portion 11b downward.

As shown in FIG. 2, on the upper part of the washing tank 13, acidic electrolyzed water (hereinafter, also referred to as acidic water), alkaline electrolyzed water (hereinafter, also referred to as alkaline water), water (hereinafter, also referred to as purified water), etc. An upper introduction portion 17 for introducing various fluids such as a cleaning liquid and air, and a cleaning member such as a wire brush (not shown) into the inside of the endoscope 11 is provided.

Further, a plurality of injection ports (not shown) are installed at predetermined positions in the cleaning tank 13. A supply means such as a hose is connected to these injection ports. The various fluids are supplied from the tank to the injection port through the supply means by driving a pump.

In the present embodiment, the cleaning liquid such as acidic electrolyzed water, alkaline electrolyzed water, and water is sprayed from the plurality of spouts described above to the outside of the endoscope 11 for cleaning.

In the endoscope cleaning device 10 configured as described above, first, the endoscope 11 is arranged on the endoscope support portion 15, the opening / closing cover (not shown) is closed, and the cleaning process is started. In this cleaning step, first, tap water is sprayed from a plurality of injection ports to the outside of the endoscope 11 for a predetermined time, and then alkaline electrolyzed water is sprayed from the plurality of injection ports for a predetermined time. During this period, the inside of the endoscope is cleaned at the same time by the upper introduction portion 17, but the details will be omitted.

After spraying alkaline electrolyzed water on the outside of the endoscope 11, a disinfection step is performed next. In this disinfection step, acidic electrolyzed water is similarly sprayed from a plurality of jet ports for a predetermined time.

Then, after the disinfection step is completed, a rinsing step is performed. In this rinsing step, tap water is similarly injected from a plurality of injection ports for a predetermined time. After that, air is supplied by a blowing means (not shown) to perform a drying step, and the whole step is completed.

(Control device for endoscope cleaning device)
Next, the control device of the endoscope cleaning device 10 shown in FIGS. 1 and 2 will be described.

FIG. 3 is a system diagram showing an endoscope cleaning device according to an embodiment of the present invention. In FIG. 3, the solid line shows the flow of the processing liquid, and the broken line shows the flow of the electrical signal. Further, the same parts as those of the endoscope cleaning device 10 shown in FIGS. 1 and 2 will be described with reference to the same reference numerals.

As shown in FIG. 2, the control device 20 of the present embodiment is installed in, for example, the endoscope cleaning device 10. The endoscope cleaning device 10 has an electrolysis tank 21 as shown in FIG. The electrolysis tank 21 electrolyzes a saline solution having a predetermined concentration, and is referred to as an acidic electrolyzed water having a predetermined pH value (hereinafter referred to as acidic water) and an alkaline electrolyzed water having a predetermined pH value (hereinafter referred to as alkaline water). ) Is generated. These acidic water and alkaline water are supplied to the acidic water tank 22 and the alkaline water tank 23, respectively. The endoscope cleaning device 10 includes a water purification tank 24 to which tap water is a supply source. In the following description, when acidic water, alkaline water and purified water are generically referred to, they are referred to as a treatment liquid.

The acidic water tank 22 is connected to one connection path 28 via the acidic water flow path 25, the alkaline water tank 23 via the alkaline water flow path 26, and the water purification tank 24 via the water purification flow path 27. A supply pump 29 and a water flow sensor 30 are installed in the connection path 28. The water flow sensor 30 is installed near the supply pump 29.

For the water flow sensor 30, for example, a flapper type sensor is used. In this flapper type sensor, when the processing liquid flows and the set flow rate is reached, the flapper is pushed up and opened, and the permanent magnet in the flapper is operated so as to contact the contact of the lead switch in the switch plate. Further, when the flow rate decreases, the flapper descends and closes, and operates so that the contacts of the reed switch are separated.

In the present embodiment, the time during which the water flow sensor 30 is in the open state, that is, the water flow time when the water flow sensor 30 detects the treatment liquid is measured, and this water flow time is compared with the normal water flow time. Then, when the water flow time is, for example, half or less of the normal time, it is determined to be abnormal. Further, when the water flow time exceeds half of the normal time, for example, it is determined to be normal.

Here, the water flow sensor 30 has a built-in timer (not shown). This timer measures the time when the water flow sensor 30 detects the processing liquid, that is, the water flow time. The detection signal of the water flow sensor 30 is output to the control unit 50 having a function as a determination unit.

The acidic water flow path 25 becomes a flow path on the supply side of acidic water, the alkaline water flow path 26 becomes a flow path on the supply side of alkaline water, and the purified water flow path 27 becomes a flow path on the supply side of purified water.

The acidic water flow path 25 includes a pipe and an acidic water solenoid valve 31. The alkaline water flow path 26 includes a pipe and an alkaline water solenoid valve 32. The water purification flow path 27 includes a pipe and a water purification solenoid valve 33.

The connection path 28 is branched into a plurality of (four in this embodiment) supply destination channels. Specifically, the connection path 28 is branched into a pipeline flow path 34, a water sampling flow path 35, a first nozzle flow path 36, and a second nozzle flow path 37.

The pipeline flow path 34 includes a pipe and a pipeline solenoid valve 38. The water sampling flow path 35 includes a pipe and a water sampling solenoid valve 39. The first nozzle flow path 36 and the second nozzle flow path 37 include a pipe, a first nozzle solenoid valve 40, and a second nozzle solenoid valve 41, respectively.

Further, the pipeline flow path 34 is branched into five flow paths and connected to the washing tank 13 via these flow paths. The water sampling flow path 35 is connected to the washing tank 13 via one flow path. The first nozzle flow path 36 and the second nozzle flow path 37 are each branched into four flow paths, and are connected to the cleaning tank 13 via these flow paths, respectively.

In the washing tank 13, the pipeline portion 43 connected to the pipeline flow path 34, the water sampling section 44 connected to the water sampling flow path 35, the first nozzle 45 connected to the first nozzle flow path 36, and A second nozzle 46 connected to the second nozzle flow path 37 is installed.

The pipeline portion 43 introduces a cleaning member such as a wire brush into the endoscope 1 housed in the cleaning tank 13. The water sampling unit 44 supplies purified water or gas from the water purification tank 24 to the endoscope 11. The first nozzle 45 supplies purified water, acidic water, and alkaline water to the endoscope 11. The second nozzle 46 supplies purified water or gas from the water purification tank 24 to the endoscope 11.

As described above, the water flow sensor 30 includes the acid water flow path 25, the alkaline water flow path 26, or the purified water flow path 27 on the supply side, and the pipeline flow path 34, the water sampling flow path 35, the first nozzle flow path 36, or the water flow path 36 of the supply destination. It is detected whether the flow of acidic water, alkaline water or purified water as a treatment liquid between the second nozzle flow path 37 is normal or abnormal.

The control device 20 of the present embodiment includes a water flow sensor 30, an acidic water solenoid valve 31 installed on the supply side, an alkaline water solenoid valve 32, a purified water solenoid valve 33, and a pipeline solenoid valve 38 installed at the supply destination. A water sampling solenoid valve 39, a first nozzle solenoid valve 40, a second nozzle solenoid valve 41, and a control unit 50 are provided. Therefore, acidic water, alkaline water, or purified water is supplied to the cleaning tank 13 via two solenoid valves, one is a solenoid valve installed on the supply side and the other is a solenoid valve installed at the supply destination.

The control unit 50 outputs a control signal to the acidic water electromagnetic valve 31, the alkaline water electromagnetic valve 32, and the purified water electromagnetic valve 33 installed on the supply side, and controls the opening and closing of these. Similarly, the control unit 50 outputs control signals to the line solenoid valve 38, the water sampling solenoid valve 39, the first nozzle solenoid valve 40, and the second nozzle solenoid valve 41 installed at the supply destination, and opens and closes these. Control.

The control unit 50 is mainly composed of a well-known microcomputer equipped with a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory) as a recording medium, an I / O (Input / Output), and the like. It is a controlled device.

Of these, the ROM stores data and programs that need to retain the stored contents even when the power is turned off. The RAM temporarily stores data. The CPU realizes each function by executing a program installed in the ROM. In addition to the above ROM, the recording medium includes, for example, a computer-readable electronic medium such as a DVD-ROM (Digital Versatile Disk Read Only Memory), a CD-ROM (Compact Disc Read Only Memory), and a hard disk.

FIG. 4 is an explanatory diagram showing an example of a combination of a flow path on the supply side and a flow path on the supply destination according to the embodiment of the present invention. In this embodiment, for example, 6 patterns can be combined between the flow path on the supply side and the flow path on the supply destination.

Specifically, as shown in FIG. 4, the water purification flow path 27 on the supply side includes the first nozzle flow path 36, the second nozzle flow path 37, the water sampling flow path 35, and the pipeline flow path 34 of the supply destination. Each can be combined. Further, the acidic water flow path 25 and the alkaline water flow path 26 on the supply side can be combined with the first nozzle flow path 36 of the supply destination, respectively. The data of these combinations is stored in advance in the ROM of the control unit 50. Similarly, the data determination order of the combination is also stored in the ROM in advance.

As described above, in the present embodiment, a plurality of combinations of the flow path on the supply side and the flow path on the supply destination are selected so as to have a part in common with each other. Then, it is determined whether the selected plurality of flow paths are normal or abnormal in common based on the detection result from the water flow sensor 30, and the abnormal flow path is determined from the plurality of flow paths. Is.

Next, a specific example for determining an abnormal flow path from a plurality of flow paths will be described.

FIG. 5 is an explanatory diagram showing a case where an abnormality is detected from an example of a combination of a flow path on the supply side and a flow path on the supply destination according to the embodiment of the present invention. In FIG. 5, 〇 indicates normal and × indicates abnormal.

As shown in FIG. 5, first, the control unit 50 selects the water purification solenoid valve 33 installed in the water purification flow path 27 on the supply side to operate as a combination of the first flow paths, and also selects the pipe of the supply destination. The line solenoid valve 38 installed in the path path 34 is selected to operate. Then, when the water flow sensor 30 detects that there is an abnormality, the control unit 50 determines that there is an abnormality in the water purification flow path 27 on the supply side or the pipeline flow path 34 at the supply destination.

Next, the control unit 50 selects the water purification solenoid valve 33 installed in the water purification flow path 27 on the supply side to operate as a combination of the second flow paths, and is installed in the water sampling flow path 35 of the supply destination. The water sampling solenoid valve 39 is selected to operate. Then, when the water flow sensor 30 detects that it is normal, the control unit 50 determines that both the water purification flow path 27 on the supply side and the water sampling flow path 35 on the supply destination are normal.

In this case, the water purification flow path 27 on the supply side is common to the combination of the first flow path and the combination of the second flow paths that are different from each other. The pipeline flow path 34 and the water sampling flow path 35 of the supply destination are not common. Then, as described above, in the combination of the second flow paths, both the water purification flow path 27 on the supply side and the water sampling flow path 35 at the supply destination are determined to be normal, so that the pipeline flow path 34 is abnormal. It is determined that there was.

FIG. 6 is an explanatory diagram showing a case where an abnormality is detected from another example of the combination of the flow path of the supply side and the flow path of the supply destination according to the embodiment of the present invention. Also in FIG. 6, 〇 indicates normal and × indicates abnormal.

As shown in FIG. 6, first, the control unit 50 selects the water purification solenoid valve 33 installed in the water purification flow path 27 on the supply side to operate as a combination of the first flow paths, and also selects the pipe of the supply destination. The line solenoid valve 38 installed in the path path 34 is selected to operate. Then, when the water flow sensor 30 detects that there is an abnormality, the control unit 50 determines that there is an abnormality in the water purification flow path 27 on the supply side or the pipeline flow path 34 at the supply destination.

Next, the control unit 50 selects the acid water solenoid valve 31 installed in the acidic water flow path 25 on the supply side to operate as a combination of the second flow paths, and installs it in the pipeline flow path 34 of the supply destination. The line solenoid valve 38 is selected to operate. When the control unit 50 detects that the water flow sensor 30 is normal, the control unit 50 determines that both the acidic water flow path 25 on the supply side and the pipeline flow path 34 on the supply destination are normal.

In this case, the pipeline flow paths 34 of the supply destination are common in the combination of the first flow path and the combination of the second flow paths that are different from each other. The purified water flow path 27 on the supply side and the acidic water flow path 25 are not common. Then, as described above, in the combination of the second flow paths, both the acid water flow path 25 on the supply side and the pipeline flow path 34 at the supply destination are determined to be normal, so that the water purification flow path 27 is abnormal. It is determined that there was.

Therefore, in the present embodiment, in the combination of a plurality of flow paths, a plurality of solenoid valves having a part in common with each other are selected for the combination of the solenoid valve on the supply side and the solenoid valve on the supply destination. When normal and abnormal occur in these selected plurality of electromagnetic valves, it is determined that there is an abnormality in the non-common flow path included in the abnormality.

FIG. 7 is a diagram showing the cumulative time detected by the water flow sensor in the various solenoid valves of the embodiment of the present invention. The numerical value in FIG. 7 indicates the cumulative time when the running water sensor 30 has detected the treatment liquid, and is shown as one count per 0.1 seconds. The theoretical value in FIG. 7 is a numerical value theoretically obtained.

In this embodiment, as described above, the water flow sensor 30 measures the water flow time when the treatment liquid is detected, compares this water flow time with the normal water flow time, and the water flow time is, for example, normal time. If it is less than half, it is judged to be abnormal, and if the water flow time exceeds half of the normal time, for example, it is judged to be normal.

As shown in FIG. 7, the detection timing of the purified water electromagnetic valve 33 is 2 minutes during purification spraying, and when the cumulative time of the flowing water sensor 30 is shown as the count number, the theoretical value is 1200 and the normal time (actual measurement value) is 1200. 1220, when the electromagnetic valve fails, it becomes 23.

The detection timing of the acid water solenoid valve 31 and the alkaline water solenoid valve 32 is 30 seconds for each of the acid spray and the alkaline water spray, the theoretical value is 300, the normal time (actual measurement value) is 279, and the solenoid valve fails. It becomes 15.

The detection timing of the solenoid valve 38 is 10 seconds for visual confirmation of the brush, the theoretical value is 100, the normal time (actual measurement value) is 86, and the solenoid valve failure is 5.

The detection timing of the water sampling solenoid valve 39, the first nozzle solenoid valve 40, and the second nozzle solenoid valve 41 is 50 seconds during air supply, the theoretical value is 50, and the normal time (actual measurement value) is 21, respectively. 58, 58, and 0 when the solenoid valve fails.

According to FIG. 7, the measured values are not significantly different from the theoretical values in the cumulative time when the running water sensor 30 detects the treatment liquid. However, it can be seen that the numerical value of the result when each solenoid valve fails is significantly reduced from the normal time. As described above, since the solenoid valve of the present embodiment is normally closed, it will be closed if it fails.

Based on these results, the determination of whether each solenoid valve is normal or abnormal is made when the cumulative time, that is, the water flow time is, for example, less than half of the normal time as described above. If it is determined to be abnormal and the water flow time exceeds, for example, half of the normal time, it is determined to be normal.

In this case, the criterion for determining whether it is normal or abnormal can be arbitrarily set, but it may be determined by comparing the minimum value of the flow rate required for cleaning with the normal flow rate.

Next, an example of the abnormality determination result in the actual operation process will be described.

FIG. 8 is a diagram showing an example of an abnormality determination result in an actual operation process of the endoscope cleaning device according to the embodiment of the present invention. Note that FIG. 8 shows a case where an abnormality is determined during the operation process. In FIG. 8, a circle indicates that the solenoid valve is operating in each process.

As shown in FIG. 8, the operation process of the actual equipment includes a purified water spraying process, an acidic water spraying process, an alkaline water spraying process, a visual confirmation process, and an air supply. In the purified water spraying step, an abnormality in the purified water solenoid valve 33 or each flow path is determined. In the acid water spraying step, an abnormality is determined in the acid water solenoid valve 31 or each flow path. In the alkaline water spraying step, an abnormality in the alkaline water solenoid valve 32 or each flow path is determined.

If there is an abnormality during the visual confirmation step or air supply, it is determined that there is an abnormality in each flow path or the purified water solenoid valve 33.

Further, in the acidic water spraying step and the alkaline water spraying step, when the count number shown in FIG. 7 is reduced to the same extent, it is visually observable to identify the abnormality in each flow path and the abnormality point in each flow path. Judgment is made individually from the confirmation process and the judgment result during insufflation.

In this embodiment, the minimum combination of the flow path of the supply side and the flow path of the supply destination shown in FIG. 4 may be performed separately from the cleaning step, but the difference in the cleaning process is shown as shown in FIG. By using it, the confirmation time can be shortened.

As described above, according to the present embodiment, a plurality of combinations of the flow path on the supply side and the flow path on the supply destination are selected so as to have a part in common with each other, and the plurality of selected flow paths are transmitted from the water flow sensor 30. In order to determine whether it is normal or abnormal in common based on the detection result of, and to determine the abnormal flow path from multiple flow paths, one sensor can be used to determine the abnormal flow from multiple flow paths. It becomes possible to identify the road. Moreover, since only one sensor is required, the cost can be suppressed and the control can be simplified.

Further, according to the present embodiment, there is a connection path 28 that connects the flow path of the supply side and the flow path of the supply destination, and since the water flow sensor 30 is installed in this connection path 28, only one connection path 28 is required, and the structure is configured. Can be simplified.

Further, the water flow sensor 30 detects the water flow time of the treatment liquid, determines that the water flow time is normal when the water flow time exceeds a preset time, and determines that the water flow rate is abnormal when the time is equal to or less than the preset time. Since the abnormality can be determined without measuring, it is not necessary to use an expensive sensor.

Further, since the water flow sensor 30 can change the determination criteria for determining the abnormality of the flow path for each flow path, it is possible to determine a wide range of abnormalities from a rough abnormality to a fine abnormality.

Further, the control unit 50 outputs a control signal to each solenoid valve to control opening and closing, and selects a plurality of combinations of the flow paths of the supply side and the supply destination. Therefore, the control unit 50 selects the combination of the flow paths of the supply side and the supply destination. It can be done easily.

Further, since the treatment liquid supplied from the supply side to the supply destination is a plurality of types of treatment liquids, the applicable range of the treatment liquids can be widened and the versatility can be enhanced.

Further, by providing the above-mentioned system abnormality detection device and a cleaning tank for cleaning or disinfecting the endoscope by introducing a treatment liquid supplied from the supply side to the supply destination, one sensor can be used from a plurality of channels. Since it is possible to identify the flow path of the abnormality, it is possible to reliably and easily respond to the abnormality.

Although embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. This embodiment can be implemented in various other forms, and various omissions, replacements, changes, and combinations can be made without departing from the gist of the invention. This embodiment is included in the scope of the invention described in the claims and the equivalent scope thereof, as is included in the scope and gist of the invention.

In the above embodiment, the water flow sensor 30 measures the water flow time when the treatment liquid is detected, compares this water flow time with the normal water flow time, and the water flow time is, for example, half or less of the normal time. If this is the case, it is determined to be abnormal, and if the water flow time exceeds, for example, half of the normal time, it is determined to be normal, but the present invention is not limited to this. The criterion for determining abnormality or normality may be that when the water flow time is equal to or less than a preset time, it is determined to be abnormal, and when it exceeds the preset time, it is determined to be normal.

Further, in the above embodiment, an example in which two combinations of the flow path of the supply side and the flow path of the supply destination are selected has been described, but the present invention is not limited to this, and a plurality of combinations may be selected.

10 ... Endoscope cleaning device 11 ... Endoscope 13 ... Cleaning tank 15 ... Endoscope support part 17 ... Upper introduction part 20 ... Control device 21 ... Electrolysis tank 22 ... Acid water tank 23 ... Alkaline water tank 24 ... Water purification tank 25 ... Acidic water flow path 26 ... Alkaline water flow path 27 ... Water purification flow path 28 ... Connection path 29 ... Supply pump 30 ... Water flow sensor 31 ... Acid water solenoid valve 32 ... Alkaline water electromagnetic valve 33 ... Water purification electromagnetic valve 34 ... Pipe flow path 35 ... Water sampling flow path 36 ... First nozzle flow path 37 ... Second nozzle flow path 38 ... Pipe line solenoid valve 39 ... Water sampling solenoid valve 40 ... First nozzle electromagnetic valve 41 ... Second nozzle electromagnetic valve 43 ... Pipe line portion 44 ... Water sampling unit 45 ... 1st nozzle 46 ... 2nd nozzle 50 ... Control unit (judgment unit)

Claims (1)

A supply pump that supplies the processing liquid from the supply side to the supply destination,
A plurality of flow paths installed on at least one of the supply side and the supply destination to pass the treatment liquid, and
A connection path connecting the supply side and the flow path of the supply destination,
Running water installed in the connection path, detects the water flow time of the treatment liquid, determines that it is normal when the water flow time exceeds a preset time, and determines that it is abnormal when it is less than or equal to the preset time. With the sensor
A plurality of combinations of the flow path on the supply side and the flow path of the supply destination are selected so as to be partially common to each other, and the plurality of selected flow paths are common based on the detection result from the water flow sensor. A determination unit that determines whether the flow path is normal or abnormal, and determines an abnormal flow path from the plurality of flow paths.
A cleaning tank that introduces the treatment liquid supplied from the supply side to the supply destination to clean or disinfect the endoscope, and
An endoscope cleaning device characterized by being provided with.

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