KR102528432B1 - Ambulance using modular negative pressure equipment - Google Patents

Abstract

The present invention relates to a negative pressure ambulance using modular negative pressure equipment, comprising: an air conditioner installed on one surface of a separation panel for separating a driver's seat and a patient's room in the ambulance to circulate indoor air; It is characterized in that it consists of; a discharger installed on both sides of the edge of the patient room to purify the indoor air and then discharge it to the outdoors. It is installed and can be operated from the driver's seat while checking the filter replacement cycle and filter replacement notification, and when the oxygen concentration in the patient room drops below 18%, the internal air is automatically forcibly ventilated to maintain an appropriate oxygen concentration to prevent lack of oxygen. It is effective in preventing dizziness and headaches.

Description

Negative pressure ambulance using modular negative pressure equipment {Ambulance using modular negative pressure equipment}

The present invention relates to a negative pressure ambulance using modular negative pressure equipment, and more particularly, by setting the inside of a patient room of an ambulance to a negative pressure condition or a positive pressure condition to treat respiratory patients or general patients infected with SARS, MERS, COVID-19, etc. It relates to a negative pressure ambulance using a modular negative pressure device capable of being transported as well as maintaining an appropriate oxygen concentration by forcibly purifying the air in the patient room when there is a lack of oxygen in the patient room.

In general, an ambulance is to quickly dispatch to the scene where a patient occurred and provide immediate emergency treatment and protect life while the patient is transported to the hospital. A rear door and a side door are installed so that paramedics can board.

In the patient room, there are various facilities that can provide emergency relief in the car until full-scale treatment at the hospital, that is, tools necessary for the execution of emergency work, and emergency medical care necessary while transporting the injured or sick from the accident site to the hospital. First-aid bandages for wounds or bleeding, tourniquets, braces for fractures, artificial respirators for lifesaving, oxygen tanks, emergency rescue seats, etc. are installed so that they can be performed.

However, conventionally used ambulances have only the function of quickly transporting an emergency patient or injured to a hospital, so there is no major problem in emergency transportation for general patients, but for patients infected with Ebola, Marburg virus, coronavirus, anthrax, etc. There was a problem that it was not suitable for transporting contagious patients, that is, suspected or confirmed infectious diseases.

In other words, the transfer of persons suspected of having an infectious disease or confirmed infection should be carried out quickly to a hospital with a negative pressure ward in a state where the spread of the source of infection is blocked. When a patient or a confirmed patient is boarded and transported, there is a problem in that the source of infection leaks and spreads to the outside of the ambulance during transport.

In particular, since the first aid personnel and guardians are boarded together with the patient in the patient room, there are various problems such as exposure of the first aid personnel and guardians from secondary infection due to close contact between the patient and the first aid personnel and guardians.

Since an ambulance vehicle has to transport a large number of patients, it must be able to be converted to a negative pressure state according to the patient's condition, and in the case of general patients, general atmospheric pressure must be applicable. In the case of an infectious disease, negative pressure is preferred to block viruses to the outside, and in the case of burn patients, atmospheric pressure is preferred to prevent infection from external contaminants. On the other hand, the set internal pressure should be maintained uniformly by correcting the change in the internal pressure of the ambulance vehicle due to the speed of the vehicle.

However, the currently operating negative pressure ambulance is designed to always maintain a negative pressure state during transport, so the occupant complains of side effects such as dizziness and headache.

Registered Patent Publication No. 10-2237865 (2021.04.08. Notice)

The present invention is to solve the above conventional problems,

The purpose of transporting respiratory patients infected with SARS, MERS, Corona-19, etc. by setting the inside of the ambulance's patient room at negative pressure, or setting it at atmospheric pressure to transport general patients;

The purpose of preventing dizziness and headaches due to lack of oxygen by maintaining an appropriate oxygen concentration by forcibly purifying the internal air with an air conditioner and an exhaust device when the oxygen concentration of the ambulance patient's room drops;

The purpose of maintaining the negative pressure inside the patient room through an air conditioner with a built-in special filtering function to purify and circulate the air in the patient room, generate negative pressure, and discharge the air after cleaning the patient room;

The purpose of preventing infection sources inside the ambulance from leaking to the outside and at the same time preventing them from being moved to the driver so that confirmed or suspected infected patients can be transported in the safest possible state while being blocked from the outside;

The purpose of being able to select the inside of the ambulance as negative pressure or atmospheric pressure according to the patient being transferred;

The purpose is to provide a negative pressure ambulance using modular negative pressure equipment that can prevent the spread of infectious agents and cross-contamination due to backflow of air even when the negative pressure equipment is out of power due to battery discharge or mechanical failure. .

The present invention is a means for achieving the above object,

An air conditioner that divides between the driver's seat and the patient's room in the ambulance and circulates the air inside the patient's room to remove the source of infection; Exhaust installed on both sides of the edge of the patient room to purify the indoor air and then discharge it to the outdoors; Alternatively, it provides a negative pressure ambulance using a modular negative pressure equipment, characterized in that it can be selected in an atmospheric pressure state, while maintaining an appropriate oxygen concentration by forcibly introducing outside air into the patient room when there is a lack of oxygen inside the patient room.

The air conditioner of the present invention includes an air conditioner main body having a transparent window formed in an 'I' shape so that the driver's seat can check the patient's room or the driver's seat in the patient's room; an air inlet panel formed with a plurality of through holes to allow air to flow into the lower part of the air conditioning main body and installed to be openable and closed; A first pre-filter on one side of the air inlet panel installed to filter out foreign substances contained in the air; a blowing fan installed inside the air conditioner to supply air back to the patient's room; a plate-type HEPA filter installed above the blowing fan to filter out infectious agents contained in the air; When the oxygen concentration in the patient's room checked by the oxygen sensor drops below 18%, it is controlled by the negative pressure controller to allow outside air to flow in. It is characterized by including; a damper installed so that one side is exposed to the outside from the inner lower side.

The damper of the present invention includes an inlet pipe installed on one side of the inner lower part of the air conditioning main body so as to protrude out of the ambulance; an opening/closing member installed on the upper portion of the inlet pipe to open and close the supply of external air to or from the ambulance; and an actuator installed on one side of the opening/closing member to operate the opening/closing member by an electrical signal from the negative pressure controller to allow external air to flow into or block the opening/closing member.

The air conditioner of the present invention includes a negative pressure controller installed in the air conditioner main body installed on one side of the separation panel so as to set the negative pressure release inside the patient room; It is characterized in that it is configured to include; a disinfector controller installed in the air conditioning main body to disinfect the inside of the patient room by being sprayed in the form of fog through a disinfection outlet formed in the air conditioning main body.

The negative pressure controller of the present invention consists of a touch screen in the driver's seat and the patient's room, and the power on / off button, automatic ventilation button, manual ventilation button, temperature setting as UI so that paramedics can control the negative pressure state and ventilation state of the patient's room It is characterized in that the button, the formation of the negative pressure operation button, and the oxygen concentration, the negative pressure state, and the state of the filter are displayed as images.

Discharger of the present invention, the outer case is made of a square shape with the top open state and the partition panel is formed therein; a cover installed on top of the outer case to function as a duct so that air discharged from the exhaust fan can be supplied to the cylindrical HEPA filter; An exhaust fan installed inside the outer case to suck in air from the patient's room and discharge it to the outside of the ambulance; a second pre-filter installed in the lower direction of the exhaust fan to remove foreign substances contained in the air sucked in by the exhaust fan; It is characterized in that it includes; a plurality of cylindrical HEPA filters installed in the outer case to remove infectious agents from the air introduced through the cover.

The second pre-filter of the present invention is characterized in that air sucked in by the exhaust fan is introduced through the air inlet and discharged outward, and is supplied to the cylindrical HEPA filter through a cover functioning as a duct.

In the cylindrical HEPA filter of the present invention, the cylindrical HEPA filter installed at the top of the plurality of cylindrical HEPA filters is introduced into the upper part where the air inlet hole is formed and discharged toward the side, and the cylindrical HEPA filter installed at the bottom of the plurality of cylindrical HEPA filters It is characterized in that the air is introduced to the side and discharged to the outside of the ambulance through the exhaust pipe.

The present invention can be used as a negative pressure ambulance or general ambulance, and when the oxygen concentration in the patient room drops below 18%, it automatically forcibly ventilates the internal air to maintain an appropriate oxygen concentration, thereby reducing dizziness and headache due to lack of oxygen. has the effect of preventing

The present invention has a built-in special filtering function to ensure that the negative pressure inside the patient room is maintained through an air conditioner responsible for purifying and circulating air in the patient room, generating negative pressure, and discharging after purifying the air inside the patient room. Since air containing infectious agents is not discharged to the outside, there is an effect of safely transporting confirmed or suspected infected patients.

In addition, by separating the space between the patient's room and the driver's seat by the separation panel, other paramedics other than the paramedics who care for the patient can be protected from infection sources.

In addition, even in the case of a power failure of negative pressure equipment due to battery discharge or mechanical failure, even if outside air flows in through the exhaust, it prevents back flow through a plurality of cylindrical HEPA filters, and also prevents external air from flowing back to the patient by the cover installed on the top of the outer case. Since the entry into the room is prevented, there is an effect of preventing the discharge of the air ambulance containing the infectious agent in the patient room to the outside.

1 is a view showing a state in which a modular negative pressure equipment according to the present invention is installed in a negative pressure ambulance.
Figure 2 is a perspective view showing the air conditioner of Figure 1;
3 is a front view of the air conditioner of FIG. 2;
Figure 4 is a cross-sectional view showing a configuration installed inside the air conditioner of Figure 3;
Figure 5 is a view showing the damper shown in Figure 4;
6 is a bottom view of the air conditioner shown in FIG. 4;
Figure 7 is a perspective view showing the ejector shown in Figure 1;
Fig. 8 is a front view of the ejector of Fig. 7;
Fig. 9 is a cross-sectional view showing the internal configuration of the ejector shown in Fig. 7;
10 is a view showing a state in which air inside a patient room is circulated by the air conditioner installed in FIG. 1;
FIG. 11 is a view showing a state in which the air inside the patient room shown in FIG. 1 is purified and discharged to the outdoors through an exhaust unit;

Hereinafter, a negative pressure ambulance using the modular negative pressure equipment according to the present invention will be described.

Negative pressure ambulance using modular negative pressure equipment according to the present invention includes an air conditioner for removing infectious agents while circulating air inside the patient room while dividing between a driver's seat and a patient room in the ambulance; Exhaust installed on both sides of the edge of the patient room to purify the indoor air and then discharge it to the outside. Responsible for air purification, circulation, and cooling functions to maintain oxygen concentration, and the discharger generates negative pressure, purifies the air inside the patient room, and discharges it so that the negative pressure inside the patient room is maintained, so that infectious agents inside the ambulance leak to the outside. It is characterized by preventing it from becoming.

In addition, the negative pressure ambulance using the modular negative pressure equipment according to the present invention makes the external air pressure and the air pressure inside the patient room the same when the general public uses the ambulance, and when transferring confirmed or suspected infected patients, external air pressure It is characterized in that the atmospheric pressure inside the patient room is set lower than the atmospheric pressure so that negative pressure is formed.

A negative pressure ambulance using the modular negative pressure equipment according to the present invention having the above characteristics will be described in detail through the accompanying drawings.

1 is a view showing a state in which a modular negative pressure equipment according to the present invention is installed in a negative pressure ambulance, FIG. 2 is a perspective view showing the air conditioner of FIG. 1, and FIG. 3 is a front view of the air conditioner of FIG. 2 , FIG. 4 is a cross-sectional view showing the configuration of the air conditioner installed inside the air conditioner of FIG. 3, FIG. 5 is a view showing the damper shown in FIG. 4, and FIG. 6 shows the bottom of the air conditioner shown in FIG. FIG. 7 is a perspective view of the ejector shown in FIG. 1, FIG. 8 is a front view of the ejector of FIG. 7, and FIG. 9 is a cross-sectional view showing the internal configuration of the ejector shown in FIG. .

Referring to FIG. 1, the negative pressure ambulance using the modular negative pressure equipment according to the present invention circulates only the air inside the patient room of the ambulance and purifies the air conditioner on one side of the separation panel 10 installed between the driver's seat and the patient room. (100) is installed.

In addition, dischargers 200 are installed at both edges of the patient room to purify the air inside the patient room so that the air inside the patient room can be discharged to the outside, thereby preventing infectious agents inside the room from leaking to the outside.

The air conditioner 100 is configured as shown in FIGS. 2 to 5, and described with reference to this, a separation panel (10 ) is installed.

The air conditioner 100 has an air conditioning main body 110 formed in an 'I' shape, and the air conditioning main body 110 has a transparent window 111 so that the patient's room or the driver's seat can be checked from the driver's seat. An air discharge hole 112 is formed on the upper side of the transparent window 111 so that air supplied through the blowing fan 120 installed inside the air conditioner main body 110 can be discharged.

The air-conditioning main body 110 has an air inlet panel 130 formed with a plurality of through-holes so that air can be introduced to the lower front side, which can be opened and closed. In addition, an air inlet 113 is formed at the bottom of the air conditioning main body 110 so that external air can flow in.

Preferably, the air inlet 113 is configured to correspond to the diameter of the inlet pipe 171 of the damper 170. That is, a hole (not shown) is formed on the floor of the vehicle to correspond to the air inlet 113 so that the inlet pipe 171 protrudes to the outside of the vehicle and protrudes out through the floor of the vehicle so that external air can flow in. installed

In addition, a damper 170 is configured in the air inlet 113 so that it is opened only when the oxygen concentration inside the ambulance falls below the set concentration by inhaling outside air and supplying it to the room, and purifying the air in the patient room When required, the air outside the ambulance can be blocked from being supplied to the inside of the patient's room.

A first pre-filter 140 is installed on one side of the air inlet panel 130 to filter out foreign substances contained in the air.

An opening/closing door 150 is installed on the upper side of the air inlet panel 130 so as to be able to open and close the air conditioner main body 110 so that the first pre-filter 140 can be replaced.

A blowing fan inside the air conditioner main body 110 positioned in the upper direction where the first pre-filter 140 is installed so that the air introduced through the first pre-filter 140 can be discharged through the air discharge hole 112 ( 120) is installed, and a plate-shaped HEPA filter 160 is installed above the blowing fan 120 to filter out infectious agents contained in the inflowing air. The air filtered through the plate-shaped HEPA filter 160 is discharged through the air discharge hole 112 formed on the upper part of the air conditioner main body 110 .

The air conditioner 100 is opened to allow outside air to flow in under the control of the negative pressure controller 180 when the oxygen concentration in the patient room checked by the oxygen sensor goes down to 18% or less, and when the oxygen concentration goes up to 20% or more, the air conditioner 100 opens to the outside air. A damper 170 is configured to block the inflow. When the damper 170 is opened, external air introduced by the blowing fan 120 is introduced into the patient's room and circulated so that the concentration of oxygen can be maintained at an appropriate concentration.

The damper 170 is installed on one side of the inner lower part of the air conditioner 100, and is coupled to the air intake 113 of the air conditioner main body 110 so that outside air can be sucked into the room, so that it protrudes from the patient room to the outside of the ambulance An inlet pipe 171 is installed, and an opening/closing member 172 opened and closed by an actuator 173 is installed on the top of the inlet pipe 171, and an actuator 173 is installed on one side of the opening and closing member 172 The opening and closing member 172 is opened and closed so that outside air is introduced into the patient's room and the oxygen concentration is adjusted.

In addition, a negative pressure controller 180 and a disinfector controller 190 are installed in the air conditioner 100, and the negative pressure controller 180 sets a predetermined negative pressure to prevent the air inside the patient room from escaping to the outside, as well as the patient room When the internal oxygen concentration drops, external air is forcibly introduced into the patient's room to purify it so that an appropriate oxygen concentration can be maintained.

When forcibly purifying air by introducing outside air into the patient room, external air is supplied to the inside of the patient room through the air conditioner 100, and the air inside the patient room is discharged to the outside through the exhaust device 200 described below. This is done so that the oxygen concentration inside the patient room can be maintained at an appropriate concentration.

The negative pressure controller 180 is made of a touch screen and is made in the form of an image so that paramedics can check the oxygen concentration, negative pressure state, filter state, filter exchange period, filter exchange alarm and control in the patient room, and also automatically ventilate through the UI. An on/off button, a manual ventilation on/off button, and a negative pressure operation button are formed.

In addition, each power on/off button of the negative pressure controller 180 may be formed in a UI form to control the operation of the air conditioner 100.

The touch screen is preferably formed of any one of a pressure-sensitive type, an electrostatic type, and an ultrasonic type. In addition, the touch screen may include a communication function, and it is preferable that such a communication function enables data to be transmitted so that the central management server can know the state of the ambulance's patient room.

In addition, the negative pressure controller 180 is configured with an oxygen sensor (not shown) to check the oxygen concentration inside the patient room, and the oxygen sensor checks the oxygen concentration inside the patient room of the ambulance and transmits it to the negative pressure controller 180 to be displayed in

The disinfector controller 190 is made of a touch screen and has a spray start button and a spray stop button made of a UI so that the fog-type disinfectant can be manually sprayed into the patient room, and an image so that the remaining amount of the disinfectant can be checked. to be displayed in the form.

The disinfector controller 190 is sprayed in the form of fog through the disinfection outlet 191 formed in the air conditioner main body 110 so that the inside of the patient room can be disinfected after transferring confirmed or suspected infected patients.

A disinfectant spray device 192 is installed on the rear side of the disinfection outlet 191 so as to be electrically connected to the disinfector controller 190 to spray disinfectant in the form of fog. installed on the back

The negative pressure controller 180 and the disinfector controller 190 are configured in an integrated form to control air circulation inside the patient room and negative pressure inside the patient room.

As shown in FIGS. 7 to 9 , the ejector 200 is installed on both sides of the edge of the patient room so that only the air in which the infectious agent is removed is discharged when the air inside the patient room is discharged to the outside.

The ejector 200 is composed of an outer case 210 made of a square shape with an open top, and the air discharged from the exhaust fan 240 is disposed on the top of the outer case 210 through a cylindrical HEPA filter 260. A cover 220 functioning as a duct is installed so that it can be supplied to, and a plurality of locking members 230 are installed so that the cover 220 can be fixed to the outer case 210.

In addition, a partition panel 211 is installed at the inner center of the outer case 210 so that air sucked in by the exhaust fan 240 can be continuously sucked at a predetermined pressure.

In addition, an exhaust fan 240 is installed inside the outer case 210 to suck in air from the patient's room and discharge it to the outside of the ambulance, and remove foreign substances contained in the air sucked into the exhaust fan 240. The second pre-filter 250 is installed below the exhaust fan 240 so as to be able to do so.

In addition, a differential pressure sensor 212 electrically connected to the negative pressure controller 160 is installed at the bottom of the outer case 210 to determine whether the pressure in the patient room is maintained lower than the pressure outside the ambulance.

The second pre-filter 250 has an air intake hole 251 formed at the lower center of the second pre-filter 250 so that the air introduced by the exhaust fan 240 is introduced toward the center and discharged toward the edge to remove foreign substances contained in the air. . In addition, the opposite side of the second pre-filter 250 where the air inlet is formed is blocked so that the incoming air is moved only in the lateral direction and discharged.

The exhaust fan 240 is installed on the inside of the outer case 210 by means of a bracket 241 to be located above the second pre-filter 250, and functions as a duct for the air introduced through the second pre-filter 250. is supplied to the cover 220 to be supplied to the cylindrical HEPA filter 260.

A plurality of cylindrical HEPA filters 260 are installed inside the outer case 210 to remove infectious agents contained in the air introduced through the lid 220 via the second pre-filter 250.

The cylindrical HEPA filter 260 installed on the upper part of the plurality of cylindrical HEPA filters 260 is installed so that the air inlet hole 261 is located at the upper part so that air supplied through the cover 220 can flow in, and the other The cylindrical HEPA filter 260 is installed so that the exhaust pipe 262 protrudes outside the ambulance so that the introduced air is discharged to the outside of the ambulance.

In addition, the cylindrical HEPA filter 260 installed on the upper part of the plurality of cylindrical HEPA filters 260 allows air to be introduced through the air inlet hole 261 and discharged in the lateral direction to remove infectious agents contained in the air. In addition, the other cylindrical HEPA filter 260 allows air to be introduced into the side and discharged through the exhaust pipe so that the infectious agent can be removed from the air in which the infectious agent is first removed.

In the negative pressure ambulance using the modular negative pressure equipment according to the present invention configured as described above, see FIGS. to explain in detail.

FIG. 10 is a view showing a state in which air inside the patient room is circulated by the air conditioner installed in FIG. 1, and FIG. 11 shows a state in which the air inside the patient room shown in FIG. 1 is purified and discharged to the outdoors through an exhaust unit. It is an illustrated drawing.

10 and 11, the present invention operates the negative pressure operation button of the negative pressure controller 180 so that the negative pressure is set in the patient room of the negative pressure ambulance using the modular negative pressure equipment, the air inside the patient room As discharge is performed through the ejector, negative pressure is created to prevent infectious agents from escaping to the outside of the ambulance.

At this time, the oxygen concentration inside the patient room is measured in real time through the oxygen sensor installed in the negative pressure controller 180, and the measured data is applied to the negative pressure controller 180 so that the oxygen concentration can be grasped, and at the same time, the touch screen of the negative pressure controller It is displayed in the form of an image so that paramedics can check it.

When the oxygen concentration measured by the oxygen sensor in the patient's room is 18% or less of the set concentration, the negative pressure controller 180 opens the damper 170 installed inside the air conditioner 100 and blows the outside of the ambulance by the blowing fan 120. Air is supplied into the room, and at the same time, the exhaust fan 240 of the ejector 200 is driven to discharge the air inside the patient's room to the outside so that the air in the patient's room is forcibly circulated.

In order to supply external air to the inside of the patient's room through the air conditioner 100, the air is sucked through the inlet pipe 171 of the dapper 170 by the driving of the blowing fan 120, and passes through the damper 170 Inhaled air is supplied to the plate-type HEPA filter 140 after foreign substances are removed through the first pre-filter 140 .

The air supplied to the plate-shaped HEPA filter 160 is discharged through the air discharge hole 112 formed on the upper part of the air conditioner main body 110 in a state in which the infectious agent is removed.

In addition, external air flowing into the air inlet 113 is supplied to the plate-type HEPA filter 140 through the blower 120 to filter out foreign substances and bacteria contained in the air, and then the air formed on the upper part of the air conditioning main body 110. It is discharged through the discharge hole 112.

Air from outside the ambulance is introduced through the air inlet 113 to forcibly purify the air inside the patient room to maintain an appropriate oxygen concentration when the oxygen concentration inside the patient room is below the set concentration.

In addition, since the air from which the infectious agent is removed by the wind discharged from the air conditioning main body 110 is easily supplied to the patient room, the air circulation is made easy while preventing the infection of the paramedics on board as much as possible, and the infectious agent inside the patient room continues to be circulated. can be removed by

As described above, when external air flows into the patient room for a predetermined time, the oxygen sensor checks and if the oxygen concentration in the patient room maintains an appropriate concentration of 20% or more, the differential pressure sensor 212 checks the negative pressure inside the patient room. To apply the data signal to the negative pressure controller (180).

When the negative pressure inside the patient room checked by the differential pressure sensor 212 rises above the set negative pressure, the paramedic manually operates the negative pressure controller 180 to set the negative pressure in the patient room so that the infected air escapes to the outside to be able to prevent

Looking at the process of forming the negative pressure inside the patient room, the negative pressure controller 180 applies an electrical signal to the exhaust fan 240, and the exhaust fan 240 is driven by the applied signal to transport air in the patient room to an outer case. (210) to be discharged to the outside.

At this time, the air introduced into the outer case 210 by the exhaust fan 240 flows inward through the air intake hole 251 of the second pre-filter 250 and is discharged to the outside of the second pre-filter 250. As the air moves toward the lid 220, the foreign matter contained in the air is filtered by the second pre-filter 250.

Infectious agents are removed from the air supplied through the cover 220 through a plurality of cylindrical HEPA filters 260. At this time, the cylindrical HEPA filter 260 positioned on top of the plurality of vertically stacked cylindrical HEPA filters 260 First, the infectious agent is removed by the first, and secondarily, the infectious agent is removed by the cylindrical HEPA filter 260 located on the lower side.

In the cylindrical HEPA filter 260, from which the reduction source is first removed, air is introduced through the air inlet hole 261 and discharged outward, thereby removing the infectious agent contained in the air.

The cylindrical HEPA filter 260, from which the infectious agent is secondarily removed, air is introduced from the outside and discharged through the exhaust pipe 262, thereby removing the infectious agent from the air from which the infectious agent is first removed, thereby preventing the air from containing the infectious agent. to allow the discharge to occur.

As described above, since the air inside the patient's room is discharged to the outside by the exhaust fan 240, the negative pressure inside the patient's room remains lower than the air pressure outside the ambulance, so the air containing the infectious agent leaks to the outside of the ambulance. In a state where this is not done, the transfer of confirmed infected patients or suspected infected patients is facilitated.

In addition, by separating the space between the patient's room and the driver's seat by the separation panel 10, other paramedics other than the paramedics who care for the patient can be protected from infection sources.

In addition, even when the negative pressure equipment is stopped due to battery discharge or mechanical failure, even if external air flows into the exhaust pipe 262, it does not pass through the plurality of cylindrical HEPA filters 260 and the cover installed on the top of the outer case 210 220 also allows outside air to flow into the patient's room, so that air containing infectious agents in the patient's room can be prevented from being discharged to the outside of the ambulance.

The above description is merely an example of the technical idea of the present invention, and those skilled in the art can make various modifications, changes, and substitutions without departing from the essential characteristics of the present invention. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings. The protection scope of the present invention should be construed according to the following claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

10; Separation panel 100: air conditioner
110: air conditioning main body 111: transparent window
112: air discharge hole 113: air inlet
120: blowing fan 130: air inlet panel
140: first pre-filter 150: opening and closing door
160: plate type HEPA filter 170: damper
171: inlet pipe 172: opening and closing member
173: actuator 180: negative pressure controller
190: disinfector controller 191: disinfection outlet
192: disinfectant spray device 200: ejector
210: outer case 211: partition panel
212: differential pressure sensor 220: cover
230: locking member 240: exhaust fan
241: bracket 250: second pre-filter
251: air inlet 260: cylindrical HEPA filter
261: air inlet hole 262: exhaust pipe

Claims (8)

An air conditioner 100 for removing infectious agents while circulating air inside the patient room while separating the driver's seat and the patient room in the ambulance;
Discharger 200 installed on both sides of the edge of the patient room to purify the indoor air and then discharge it to the outdoors;
The air conditioner 100 has a built-in filtering function and is in charge of air purification and circulation functions to maintain an appropriate oxygen concentration by forcibly circulating the air inside the patient room when the oxygen concentration in the patient room drops,
The ejector 200 generates negative pressure, purifies the air inside the patient's room, and discharges it so that the negative pressure inside the patient's room is maintained to prevent infectious agents inside the ambulance from leaking to the outside,
The air conditioner 100,
An air conditioner main body 110 having a transparent window 111 installed so that the entire shape is formed in an 'I' shape so that the patient's room or the driver's seat can be checked from the driver's seat;
a blowing fan 120 installed inside the air conditioning main body 110 to supply air back to the patient's room;
an air inlet panel 130 installed to open and close with a plurality of through holes formed therein so that air can flow into the lower part of the air conditioning main body 110;
A first pre-filter 140 on one side of the air inlet panel 130 installed to filter out foreign substances contained in the air;
An opening/closing door 150 installed to be able to be opened and closed in the air conditioning main body 110 so that the first pre-filter 140 can be replaced on the upper side of the air inlet panel 130;
a plate-type HEPA filter 160 installed above the blowing fan 120 to filter out infectious agents contained in the air;
When the oxygen concentration in the patient room checked by the oxygen sensor goes down to 18% or less, the external air is opened under the control of the negative pressure controller 180. A damper 170 installed so that one side is exposed to the outside at the inner lower side of the air conditioning main body 110;
A negative pressure controller 180 installed on one side of the air conditioning main body 110 to set the release of negative pressure inside the patient room;
A disinfector controller 190 installed in the air conditioning main body 110 to disinfect the inside of the patient room by being sprayed in the form of fog through a disinfection outlet 191 formed in the air conditioning main body 110; includes,
The damper 170,
An inlet pipe 171 installed in the inner lower air inlet 113 of the air conditioner main body 110 of the air conditioner 100 so as to protrude out of the ambulance;
an opening/closing member 172 installed on the upper part of the inlet pipe 171 to open and close the air outside the ambulance to be supplied or not to be supplied;
An actuator 173 installed on one side of the opening and closing member 172 to operate the opening and closing member 172 by an electrical signal from the negative pressure controller 180 so that external air is introduced into the inside or blocked;
Negative pressure ambulance using a modular negative pressure equipment comprising a. delete delete delete According to claim 1,
The negative pressure controller 180,
It consists of a touch screen in the driver's seat and the patient's room, so that paramedics can control the negative pressure and ventilation of the patient's room. Power on / off button, automatic ventilation button, manual ventilation button, negative pressure operation button, formation of UI, oxygen concentration, Negative pressure ambulance using modular negative pressure equipment, characterized in that the negative pressure state and the state of the filter (exchange cycle, exchange alarm) are displayed as images. According to claim 1,
The ejector 200,
an outer case 210 having a quadrangular shape with an open upper portion and having a partition panel 211 formed therein;
a cover 220 installed on top of the outer case 210 to function as a duct so that air discharged from the exhaust fan 240 can be supplied to the cylindrical HEPA filter 260;
An exhaust fan 240 installed inside the outer case 210 to suck air from the patient's room and discharge it to the outside of the ambulance;
a second pre-filter 250 installed below the exhaust fan 240 to remove foreign substances contained in the air sucked in by the exhaust fan 240;
A plurality of cylindrical HEPA filters 260 installed in the outer case to remove infectious agents from the air introduced through the cover 220;
Negative pressure ambulance using modular negative pressure equipment comprising a. According to claim 6,
The second pre-filter 250,
A module characterized in that the air sucked in by the exhaust fan 240 is introduced through the air intake hole 251 and discharged outward and supplied to the cylindrical HEPA filter 260 through the cover 220 functioning as a duct Negative pressure ambulance using type negative pressure equipment. According to claim 6,
The cylindrical HEPA filter 260,
Among the plurality of cylindrical HEPA filters 260, the cylindrical HEPA filter 260 installed at the top is introduced into the upper part where the air inlet hole 261 is formed and discharged toward the side.
The cylindrical HEPA filter 260 installed at the bottom of the plurality of cylindrical HEPA filters 260 is a negative pressure ambulance using modular negative pressure equipment, characterized in that air is introduced to the side and discharged to the outside of the ambulance through the exhaust pipe 262.

Images