JP2003325658A - Automatically sewage-sucking/draining device in surgery operation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device capable of disposing sewage at low cost without requiring a labor by automatically sucking and draining the sewage upon surgery operation. <P>SOLUTION: This device 1 comprises a sucking chamber 5 and a draining chamber 7 vertically in a device body 3. A suction part 8 having a concentrating pad 21 is disposed at the inlet part 51 of the sucking chamber 5, and a drain part 9 connected to the drain inlet 31 in an outlet box 30 is disposed at the outlet part 7a of the draining chamber 7. A vacuum pump 10 is connected to the suction chamber 5 to bring the inside of the suction chamber to a negative pressure state to suck the sewage, and a compressor 18 is connected to the draining chamber 7 to positively flow the sewage flowing in the drain chamber 7 to the drain part 9. Also, a communication passage 6 is provided between the suction chamber 5 and the draining chamber 7 and a solenoid opening/ closing valve 17 is disposed therein to move the sewage reaching a specified amount in the sucking chamber 5 into the draining chamber 7. Thus, sucking and draining can be performed automatically. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to automatic suction and drainage of sewage during surgery, which can be automatically sucked and discharged when treating sewage such as perfusate used during surgery, blood and body fluid generated during surgery. Regarding the device.

[0002]

2. Description of the Related Art Conventionally, in laparotomy performed in surgery, obstetrics and gynecology, urology, etc., in order to make the surgical site visible, perfusion containing potassium and salts in physiological saline at approximately the same concentration as body fluid. Liquid is flowing over. Further, when the laparotomy is performed, the body fluid and blood of the patient are discharged along with it, and the sewage is discharged together with the perfusion water. These sewage are collected in a funnel-shaped central patch (for urology) or a straw-shaped suction attachment (for surgery and obstetrics and gynecology) and removed by suction. Conventionally, the suction of sewage is performed by a suction device (called wall suction) installed on the wall of the operating room, and after the suctioned sewage is filled in a separately prepared container, a coagulant is added. It was treated as medical industrial waste.

[0003]

However, since a large amount of sewage produced by a single operation is discharged, a plurality of containers for storing sewage are used. The container used is a disposable container for exclusive use, and a container for 2 liters is usually used. The amount of discharged wastewater varies depending on the contents of the surgery, but since about 10 to 70 liters are discharged, it is necessary to prepare a considerable number of containers in advance. Then, when a predetermined amount of the container is filled during the operation, the container must be replaced and a new container must be refilled.

Therefore, in the conventional method for treating sewage, it is expensive because a large number of disposable containers are used in one operation, and the filled containers are frequently exchanged and carried to the disposal site. Since it involves work, it requires a lot of labor as well as manpower. Furthermore, since these wastewaters are treated as industrial wastes, the costs associated therewith have been considerable. Therefore, there has been a demand for improvement of wastewater treatment that does not require labor and cost.

The present invention solves the above-mentioned problems, and provides an automatic wastewater suction / drainage device which can be used at a low cost without requiring human labor and can treat wastewater without trouble. The purpose is to provide.

[0006]

The automatic suction / drainage device for sewage during surgery according to the present invention is configured as follows in order to solve the above problems. That is, it is an automatic suction / drainage device for sewage at the time of surgery for sucking and discharging the sewage that has flowed out, and a suction part having a suction port for sucking the sewage, and sewage sucked from the suction part. A suction chamber for sucking and temporarily storing the water, a drainage chamber that is connected to the suction chamber via a communication passage and sequentially flows in dirty water in the suction chamber, and a drainage unit that is connected from the drainage chamber and drains to the outside. And the suction chamber is
The drainage chamber is connected to a negative pressure generating means so that the wastewater can be sucked from the suction unit, and the drainage chamber can flow the wastewater from the suction chamber by an opening / closing valve arranged in the communication passage. It is what

Further, the drain chamber may be pressurized by a pressurizing means for draining the waste water.

It is further preferable that the drainage section is connected to an outlet box provided with a drainage box, and an air exhaust port is provided in the drainage box.

Further, it is more preferable that a bactericidal means or a deodorant means is arranged at the air exhaust port.

Further, the suction chamber may be divided into a plurality of parts.

Further, a pipe port for a cleaning liquid or a disinfecting liquid may be connected to the suction chamber.

Further, the outlet box according to the present invention is an outlet box box installed for draining sewage at the time of surgery, and the outlet box has a drainage box into which pressurized drainage flows. It is characterized in that the drainage box is provided with an external drainage outlet for draining to the outside, and an air outlet for discharging the pressurized air to the outside. .

Further, it is sufficient that a bactericidal means or a deodorant means is arranged at the air exhaust port.

[0014]

According to the first aspect of the present invention, when the sewage discharged by the operation is collected in the suction part, it is sucked into the suction chamber from the suction part by the negative pressure generating means connected to the suction device. It is temporarily stored in the suction chamber. At this time, if the on-off valve of the communication passage arranged between the suction chamber and the drain chamber is closed, the dirty water stored in the suction chamber will not flow into the drain chamber. Then, for example, when the amount of dirty water in the suction chamber reaches a predetermined amount, the open / close valve is opened so that the dirty water flows into the drainage chamber. The wastewater that has flowed into the drainage chamber is drained to the outside from the drainage section.

By repeating this water absorption / drainage action, the sewage discharged by the surgery can be almost continuously fed to the suction chamber, and continuous suction can be performed. In addition, since a predetermined amount of wastewater always flows into the drainage chamber, the drainage amount of the wastewater discharged from the drainage chamber can be sent to the drainage portion with a substantially constant amount, and automatic drainage can be efficiently performed.

Therefore, it is possible to omit the work of filling the container with sewage each time and exchanging it, and the sewage treatment work can be facilitated without requiring manpower. Moreover, since no disposable container is required and no coagulant is required, the cost for wastewater treatment can be reduced.

According to the second aspect of the present invention, if the drain chamber is pressurized by the pressurizing means, the sewage that has flowed into the drain chamber is positively discharged to the drain section and promptly discharged. Since it moves to, it is possible to receive new wastewater from the suction chamber, it is possible to perform continuous operation efficiently, and since the wastewater discharged is pressurized, the drainage section, for example, Even if it is installed at a low position along the floor, it does not flow backwards and can be installed anywhere as appropriate.

According to the third aspect of the invention, the sewage that has moved to the drainage section flows into the drainage box in the outlet box. If the outlet box is arranged, for example, away from the drainage chamber, the drainage section has to travel a long distance and may therefore be arranged in a downwardly bent state in the middle section. On the other hand, if the sewage flowing from the drainage chamber is pressed by the pressurizing means,
The pressure in the drainage chamber becomes high, and there is a possibility that sewage will flow back. However, since the drainage box has an exhaust port that discharges air to the outside, the high-pressure air in the drainage box can be discharged to the outside through the exhaust port, and the wastewater does not flow backwards. It can be discharged from the external drainage outlet.

According to the fourth aspect of the present invention, since the antibacterial means or the deodorizing means is arranged at the air exhaust port arranged in the drainage box, the air discharged from the air exhaust port is Since it is possible to prevent bacteria generated from dirty water from being discharged to the outside, it is possible to take safety measures, and since it is possible to eliminate the odor, the discharged air does not cause discomfort to the surroundings.

According to the fifth aspect of the present invention, the suction chamber is divided into a plurality of sections, and the waste water stored in each single suction chamber is made to flow into the drainage chamber by opening the on-off valve. By sucking the sewage from the suction portion into another suction chamber during the operation, continuous operation can be reliably performed without stopping the suction operation of the sewage.

According to the invention of claim 6, after surgery,
If a cleaning liquid or a disinfecting liquid is flowed from another pipe port provided in the suction chamber and is discharged to the outside, the flow passage after the suction chamber is cleaned or disinfected, and cleaning can be performed quickly and efficiently.

Further, the outlet box of the present invention is
According to the invention of claim 7, the drainage box is arranged in the outlet box, and the drained wastewater is discharged from the external drainage drainage port.

At this time, when the sewage is moved by being pressurized with the pressurized air, the sewage flows back when the pressurized air is stored in the drainage box, and the drainage port for external drainage is piped. There is a risk that the trap water will be destroyed in the pipeline that is installed. However, since the drainage box is provided with an air exhaust port for letting out the pressurized air, by letting the pressurized air escape to the outside, the inflowing sewage can flow smoothly from the external drainage outlet. As a result, it is possible to prevent backflow and also prevent breakage of trap sealing water. Along with this, it is possible to prevent discharge of sewage and odor from other drainage ports.

According to the eighth aspect of the invention, since the air exhaust port is provided with antibacterial means and deodorizing means, air is exhausted around the air exhaust port. There is no discomfort caused by.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.

[0026] The sewage automatic suction and drainage device of the embodiment (hereinafter,
It is called a device. ) 1 is a caster 2 as shown in FIG.
And a device body 3 configured to be movable, and a device body 3
Of the two stages arranged inside, the suction chamber 5 arranged in the upper stage, the drain chamber 7 arranged in the lower stage and connected by the communication passage 6
And a suction part 8 which has one end connected to the inlet part 5a of the suction chamber 5 and sucks in sewage, and a drain part 9 which discharges sewage from the outlet part 7a of the drainage chamber 7. The suction chamber 5 and the drainage chamber 7 are both configured as sealed chambers.

A vacuum pump 10 arranged in the apparatus main body 3 is connected to the suction chamber 5 through a piping member 11 so as to vacuum the suction chamber 5 to form a negative pressure chamber.
A cleaning pipe 13 into which the cleaning liquid / antiseptic liquid flows is connected so that the cleaning liquid / antiseptic liquid can be flown from above from above via the electromagnetic on-off valve 12 after the operation is completed. Cleaning pipe 13
An injection port 14 for injecting a cleaning liquid and a disinfecting liquid is attached to the inner tip of the suction chamber 5. Further, in the suction chamber 5, an air intake 15 is piped via an electromagnetic opening / closing valve 16 for releasing the negative pressure, and a suction stop signal is sent when the sucked dirty water reaches a predetermined amount. A liquid level sensor 4 that operates to output is arranged.

The suction chamber 5 and the drainage chamber 7 are connected by a communication passage 6, and an electromagnetic opening / closing valve 17 is arranged in the communication passage 6, and when the amount of dirty water in the suction chamber 5 reaches a predetermined amount, the electromagnetic opening / closing valve 17 is turned on. The drainage chamber 7 is opened to allow sewage to flow into it.

A compressor 18 arranged in the apparatus main body 3 for increasing the pressure in the drainage chamber 7 is connected to the drainage chamber 7 through a piping member 19 at the upper side. Then, by operating the compressor 18, the inside of the drainage chamber 7 is pressurized so that the sewage can be positively discharged to the drainage section 9 side.

The suction portion 8 has a funnel-shaped centralized patch 2 at the tip.
1 or a straw-shaped suction attachment 22 and a suction hose 23 that connects the concentrated patch 21 or the suction attachment 22 to the suction chamber 5, and an electromagnetic opening / closing valve 24 and a suction amount measuring sensor 2 between the suction chamber 5 and the suction chamber 5.
0 is connected to the suction chamber 5 and the suction amount measuring sensor 2
0 makes it possible to measure the amount of dirty water sucked into the suction chamber 5. The concentrated patch 21 is mainly used for urology, and the suction attachment 22 is mainly used for surgery or obstetrics and gynecology.

The drainage section 9 includes an indoor drainage pipe 25 arranged in the apparatus body 3 from the outlet portion 7a of the drainage chamber 7, and an electromagnetic on-off valve 2 arranged in the apparatus body 3 at the tip of the indoor drainage pipe 25.
6 and a drain hose 27 which is disposed between the apparatus main body 3 and the wall portion W of the operating room and is detachably attached to the apparatus main body 3 and the wall portion W by attaching connectors at both ends.
Since the device body 3 is configured to be movable, it is desirable that the drain hose 27 be a flexible hose that can expand and contract along with the movement of the device body 3. Therefore, a part of the drain hose 27 is arranged along the floor surface.

The apparatus body 3 is provided with a control panel 28 and an operation panel 29 for operating each electromagnetic on-off valve and measuring the suction amount in the suction chamber 5 to perform each control.

An outlet box 30 for treating wastewater outside the hospital is installed outside the wall W of the operating room, and a drainage box 31 is arranged in the outlet box 30.

An electromagnetic opening / closing valve 33 is provided at the inlet of the drainage box 31.
Is arranged so that the dirty water flowing from the drain hose 27 can be opened and closed. Further, an external drainage outlet 32 is provided in a lower portion of the drainage box 31, and an external drainage pipe 34 connected to the external drainage outlet 32 is provided with a trap sealing portion 35 and is connected to the drainage outlet 32. As shown in, an air exhaust port 36 is provided in the upper part. Further, a HEPA filter 37 and an activated carbon filter 38 are provided in front of the outlet of the air exhaust port 36 to provide a germ-proof and deodorant state when the air is exhausted.

A control board 39 is arranged in the outlet box 30 to perform each control and is connected to the control board 28 of the apparatus main body 3.

Next, the operation of the device 1 configured as described above will be described.

Before the operation is started, the perfusion solution stored in a storage bag suspended on a support (not shown) is placed in a tube so as to be guided to the patient so that the perfusion solution is applied to the patient. . The storage bag storing the perfusate is marked with scales so that the usage amount can be seen at a glance.
Further, on a side portion of the operating table, a concentrated pad 21 or a suction attachment 22 for inhaling perfusion fluid and collected sewage such as blood or body fluid discharged from the human body during laparotomy is arranged at a predetermined position.

By performing laparotomy, the perfusate
Blood / body fluid is sucked into the concentrated pad 21 or the suction attachment 22 and then sucked into the suction hose 23. At this time, in the apparatus 1, the operation is started by operating the operation box 29, the vacuum pump 10 is operated to bring the suction chamber 5 into a negative pressure state, and the solenoid opening / closing valve 24 that opens / closes the inlet portion 5a of the suction chamber 5 is opened. And the communication passage 6 with the drainage chamber 7 is closed by closing the electromagnetic opening / closing valve 17. The open / close solenoid valve 12 for the cleaning pipe 13 and the open / close solenoid valve 16 for the air intake port 15 are closed.

Therefore, by forming a negative pressure in the suction chamber 5, the central pad 21 or the suction attachment 2 is formed.
The dirty water sucked into No. 2 is sucked into the suction chamber 5 through the suction hose 23. At this time, the suction amount of the dirty water is measured by the suction amount measuring sensor 20.

When the amount of dirty water in the suction chamber 5 reaches a predetermined amount, the liquid level sensor 4 is activated to send a signal to the control panel 28,
The vacuum pump 10 is stopped to temporarily stop the suction. At the same time, the electromagnetic opening / closing valve 17 is opened to cause the dirty water stored in the suction chamber 5 to fall into the drainage chamber 7 for movement. When the amount of dirty water in the suction chamber 5 is reduced, the liquid level sensor 4 again sends a suction enable signal to the control panel 28 to restart the vacuum pump 10 to start suction. Then, the electromagnetic opening / closing valve 17 is closed again, and dirty water is sucked and stored in the suction chamber 5. The stop time during this period is short and does not affect the amount of dirty water sucked by the suction unit 8.

While the suction in the suction chamber 5 is stopped, the air is introduced into the suction chamber 5 by opening the electromagnetic opening / closing valve 16 of the air intake 4, and the negative pressure state is released. Thereby, the inflow of dirty water into the drainage chamber 7 can be performed efficiently.

On the other hand, the electromagnetic opening / closing valve 26 and the electromagnetic opening / closing valve 33 in front of the drainage box 31 arranged at the tip of the indoor drainage pipe 25 in the lower part of the device 1 are closed at the same time when the operation is started. The solenoid opening / closing valve 17 in the passage 6 is opened at the same time. And the sewage flowing into the drainage chamber 7 is
The drain hose that is arranged between the device 1 and the wall W through the indoor drain pipe 25 with force from the drain chamber 7 by the air pressurized by the compressor 18 that is operating at the same time as the start of operation. It is moved to the drainage box 31 through 27.

The drainage box 31 is arranged in the outlet box 30 provided outside the operating room, and the apparatus I
Not only the pipe from, but also the drainage liquid discharged from other pipes is centrally piped. The sewage that has flowed into the drainage box 31 by the operation is drained from the external drainage port 32 of the drainage box 31 to the external pipe 34 and the trap sealing water 3.
It is discharged to the outside through 5 and discarded.

At this time, since the air exhaust port 35 is arranged in the upper portion of the drainage box 31, the pressurized air that has flowed into the drainage box 31 together with the sewage will not flow through the HEPA filter 28.
The air is exhausted to the outside through the air exhaust port 36 while being deodorized by the activated carbon filter 29. This air outlet 36
As the pressurized air is exhausted from the
The sewage that flows into the inside does not flow back to the drain hose 27 side that is piped along the vicinity of the floor surface, and also prevents it from flowing into other pipes and smoothly flows toward the drain port 36 for external drainage. You can move.

Therefore, the present apparatus 1 can carry out substantially continuous operation by repeating the above-mentioned operation. The vacuum pump 10 connected in the suction chamber 5
The electromagnetic opening / closing valve 17 arranged in the communication passage 3 is intermittently operated depending on the amount of dirty water stored in the suction chamber 5,
When the compressor 18 connected to the inside of the drainage chamber 7 is opened at the start of the operation, the compressor 18 may remain in operation until the operation of the device 1 is stopped, or may be intermittently operated in synchronization with the electromagnetic opening / closing valve 17. Good. Similarly, when the electromagnetic on-off valves 26 and 33 are opened at the start of operation, they may remain operated until the operation of the device 1 is stopped, or may be opened and closed each time.

Further, in this operation, each operation is configured to be sequentially performed by the sequence circuit of the control panel. Then, since the suction amount of the dirty water sucked into the suction chamber 5 is measured by the suction amount measuring sensor 20, the amount of the dirty water discharged by the operation is automatically recorded, and management is performed. Can be easy.

Further, when the operation is completed, the cleaning pipe 1
By introducing a cleaning liquid and a disinfecting liquid from 3 and flowing them from the suction chamber 5 to the external drain pipe 34,
It can be disinfected and can be used immediately for the next surgery.

As described above, in the present apparatus 1, the water suction chamber 5 and the drainage chamber 7 are arranged vertically and the communication passage 6 can be opened and closed between them, so that the vacuum pump 10 forms a negative pressure. Sewage is sucked into the suction chamber 5 from the suction unit 8, and the sewage that has reached a predetermined amount is opened by opening the electromagnetic opening / closing valve 17 and drainage chamber 7
Since it is made to flow into the fuel cell, by repeating this, almost continuous operation is possible. As a result, the intake and drainage of sewage during surgery is performed automatically, and it is possible to eliminate the labor-intensive work of putting sewage in a container and carrying it.

Moreover, in the drainage chamber 7, the compressor 18 pressurizes the inside of the drainage chamber 7, so that the sewage flowing into the drainage chamber 7 is promptly discharged.

Further, the sewage discharged from the drainage chamber 7 is
Although it will be gathered in the drainage box 31 of the outlet box 30 installed in the hospital, on the other hand, if the wastewater flowing from the drainage chamber is under pressure by the pressurizing means, the drainage box 31 will receive HEPA. Since the air exhaust port 36 is provided through the filter 37 and the activated carbon filter 38,
Pressurized air that flows in with the sewage can be discharged to the outside, so it is possible to prevent the sewage from flowing back due to the increased pressure in the drainage box, and to discharge the sewage smoothly toward the external drainage outlet. it can. Also, by preventing backflow, it is possible to prevent breakage of trap sealing water.

Moreover, since the air discharged from the air exhaust port 36 is sterilized by the HEPA filter 37 and deodorized by the activated carbon filter 38, it is impossible to clean the area around the air exhaust port 36. Does not give a pleasant feeling.

The automatic water suction / drainage device of the present invention is not limited to the above-mentioned form. For example, as shown in FIG. 3, the negative pressure generating device connected to the suction chamber 5 is a vacuum pump 10.
Alternatively, the wall suction device 40 normally installed on the wall W in the hospital may be used. By using this, it is possible to remove the vacuum pump by connecting the wall suction device 40 and the suction chamber 5 of the device 1 with the suction hose 41.

Further, in the device 1A shown in FIG. 4, the suction chamber 5
Can be divided into a first suction chamber 50A and a second suction chamber 50B. In this case, the suction hose 53 is bifurcated through the suction amount measurement sensor 20 and is connected to the first suction chamber 50A and the second suction chamber 50B via electromagnetic on-off valves 54A and 54B, respectively. The first suction chamber 50A and the second suction chamber 50B are respectively vacuum pumps 10A and 10B.
And each suction chamber is formed into a negative pressure chamber. Further, the air intakes 56A and 56B and the liquid level sensors 57A and 57B are arranged, respectively.

Further, the first suction chamber 50A and the drainage chamber 60 are connected to each other through a solenoid opening / closing valve 59A in a communication passage 58A, and the second suction chamber 50B and the drainage chamber 60 are connected to each other in a communication passage 58B.
Are connected via the electromagnetic open / close valve 59B.

In this device 1A, at the start of operation,
One electromagnetic opening / closing valve, for example, the electromagnetic opening / closing valve 54A, which is connected to one of the suction hoses 53, is open, and the other electromagnetic opening / closing valve 54B is closed. Then, the vacuum pump 10A of the first suction chamber 50A on the side where the electromagnetic opening / closing valve 54A is open operates to suck the dirty water into the first suction chamber 50A.

When the amount of dirty water sucked into the first suction chamber 50A reaches a predetermined amount, the liquid level sensor 57A operates to stop the vacuum pump 10A, and at the same time, the electromagnetic opening / closing valve 54A on the first suction chamber 50A side is closed. The electromagnetic on-off valve 54B on the side of the second suction chamber 50B is opened, the vacuum pump 10B is operated, and the second sewage is removed.
Suction into the suction chamber 50B.

During this time, the solenoid opening / closing valve 59 in the communication passage 58A
A opens, and the dirty water in the first suction chamber 50A is dropped into the drainage chamber 60. Since the electromagnetic opening / closing valve 59B of the communication passage 58B is closed, dirty water is stored in the second suction chamber 50B.

When the sewage sucked into the second suction chamber 50B reaches a predetermined amount, the liquid level sensor 57B is activated to stop the vacuum pump 10B, and the sewage is sucked into the first suction chamber 50A again. Become. Then, the electromagnetic opening / closing valve 59B is opened to drop the dirty water in the second suction chamber 50B into the drainage chamber 60. Since the action of draining from the drainage chamber 60 is the same as that of the above-described embodiment, the description below is omitted.

By repeating this, completely continuous operation becomes possible, and the waste water can be discharged without stopping the suction action.

The drainage box 31 arranged in the outlet box 30 is generally installed in a hospital, and regarding the installation of the air exhaust port shown in the present invention, the device of one embodiment of the present invention is used. The present invention is not limited to the case where 1 is used, but can be applied to other than the present device 1.

The antibacterial means is not limited to the HEPA filter and may be any other known antibacterial agent. Furthermore, the deodorant means is not limited to the activated carbon filter and any other known deodorant agent. But it's okay.

[Brief description of drawings]

FIG. 1 is an overall sectional view showing an automatic water suction / drainage device according to one embodiment of the present invention.

FIG. 2 is an enlarged sectional view showing the inside of the outlet box in FIG.

FIG. 3 is an overall cross-sectional view of a device showing a form using a wall suction device in a hospital.

FIG. 4 is a cross-sectional view showing the device in which the suction chamber is divided.

[Explanation of symbols]

1 device (automatic drainage device) 3 device body 5 suction chamber 6 communication passage 7 drainage chamber 8 Inhalation part 9 Drainage section 10 Vacuum pump (negative pressure generating means) 13 Cleaning pipe 17 Solenoid open / close valve 18 Compressor (pressurizing means) 20 Suction amount measuring sensor 21 Intensive patch (inhalation port) 22 Suction attachment (suction port) 30 outlet box 31 drainage box 32 External drainage outlet 36 Air exhaust port 37 HEPA filter (antibacterial means) 38 Activated carbon filter (deodorant) 40 wall suction device 50A First suction chamber 50B Second suction chamber

Claims (8)

[Claims] 1. An automatic suction / drainage device for sewage during operation, which sucks and discharges sewage that has flowed out during surgery, and an inhaler having an inlet for inhaling the sewage, and an inhaler from the inhaler. A suction chamber for sucking and temporarily storing the collected sewage, a drainage chamber connected to the suction chamber via a communication passage and sequentially flowing sewage in the suction chamber, and connected to the drainage chamber for draining to the outside. A drainage portion, the suction chamber is configured to be connected to negative pressure generating means to suck the dirty water from the suction portion, and the drainage chamber is formed by an opening / closing valve arranged in the communication passage. An automatic suction / drainage device for sewage during surgery, characterized in that sewage from the suction chamber can flow in. 2. The automatic suction / drainage device for sewage during operation according to claim 1, wherein the drainage chamber is pressurized by a pressurizing means for draining the sewage. 3. The drainage section is connected to an outlet box having a drainage box, and the drainage box is provided with an external drainage outlet for draining the drainage box to the outside, and also discharges pressurized air to the outside. The automatic suction / drainage device for sewage during surgery according to claim 1 or 2, wherein an air exhaust port is provided. 4. The automatic suction / drainage device for sewage at the time of surgery according to claim 3, characterized in that antibacterial means or deodorant means is arranged at the air exhaust port. 5. The automatic suction / drainage device for sewage during operation according to claim 1, 2, 3 or 4, wherein the suction chamber is divided into a plurality of parts. 6. The suction port is connected to a piping port for a cleaning liquid or a disinfecting liquid,
The automatic suction / drainage device for sewage at the time of surgery according to 3, 4, or 5. 7. An outlet box box installed for draining sewage at the time of surgery, wherein a drainage box for inflowing pressurized drainage is arranged in the outlet box. Is an outlet box that is provided with an external drainage outlet for externally draining, and an air outlet for discharging pressurized air to the outside. 8. The outlet box according to claim 7, wherein antibacterial means or deodorant means is arranged at the air exhaust port.