KR20220097778A - Mobile negative pressure chamber device with oxygen generator - Google Patents

Abstract

The present invention relates to a movable negative-pressure chamber apparatus with an oxygen generator. The apparatus comprises: a negative-pressure chamber that provides a space for accommodating a person to be transferred and is opened and closed by a zipper; supporters positioned on opposite sides with the negative-pressure chamber interposed therebetween and coupled to the negative-pressure chamber; a negative-pressure maintainer filtering and exhausting air inside the negative-pressure chamber in a state of being installed on one side supporter to keep the pressure inside the negative chamber lower than the atmospheric pressure; and an oxygen generator mounted on the other side supporter and generating oxygen to supplying the oxygen into the space of the negative-pressure chamber. The movable negative-pressure chamber apparatus with the oxygen generator according to the present invention as described above does not require that a separate oxygen cylinder is inconveniently carried and makes use convenient because the oxygen generator is integrally provided in the negative-pressure chamber and continuously supplies the oxygen, and in particular, is high in reliability by stably supplying the oxygen. In addition, by the physical supporting force of the supporters on which the negative-pressure maintainer and the oxygen generator are installed, the present invention maintains the negative-pressure chamber in a state of being stretched and unfolded so that the shape of the negative-pressure chamber is prevented from being distorted due to the gravity even over time.

Description

Mobile negative pressure chamber device with oxygen generator

The present invention relates to a portable negative pressure chamber, and more particularly, to a portable negative pressure chamber device having an oxygen generator, in which an oxygen generator is integrally mounted, and there is no need to connect a separate oxygen cylinder or replace an oxygen cylinder, which is easy to use. .

With the development of transportation means, in the modern society where movement between countries has become commonplace, the spread of infectious viruses has become an unavoidable international social problem. It is only a matter of time for a virus that originated from the other side of the world to enter Korea.

In order to prevent the spread of a virus that has already begun to spread, isolation of the virus carrier is essential. For example, since the COVID-19 virus is highly contagious, patients who test positive are transferred to an isolated facility with the help of medical personnel.

A negative pressure room installed in a medical institution is a space that prevents indoor viruses, aerosols, pathogens, etc. from leaking out together with air without permission by maintaining the air pressure in the room lower than the air pressure outside. The air in the hospital room is exhausted after being purified through sterilization and filtering processes.

Meanwhile, a movable negative pressure chamber is used during the process of transferring a virus-infected patient to a negative pressure room. The movable negative pressure chamber is a kind of bag made of waterproof fabric, and provides an enclosed space where the patient can lie down. The patient is placed in a cart and transported to a medical institution while lying in a negative pressure chamber.

At one side of the negative pressure chamber, a negative pressure device for maintaining the pressure inside the negative pressure chamber lower than atmospheric pressure is installed. The negative pressure machine sucks in the air inside the negative pressure chamber, filters it, and then discharges it to the atmosphere. Also, an oxygen cylinder is used to supply oxygen in the negative pressure chamber. The medical personnel put the oxygen cylinder on the cart, connect the oxygen cylinder and the negative pressure chamber with a hose, and then open the valve of the oxygen cylinder so that oxygen is supplied to the negative dark chamber.

However, the conventional negative pressure chamber has a disadvantage that it is cumbersome to use. The reason is that in order to transport a patient, a heavy oxygen cylinder has to be carried every time, and the oxygen cylinder is lifted and hung on the cart, the oxygen cylinder and negative pressure chamber are connected to the hose, and the pressure of the oxygen cylinder must be checked by opening the valve. However, if the transport is delayed, the oxygen is consumed, and there is no spare oxygen tank, the situation is very difficult.

As a background technology related to the negative pressure chamber, Korean Patent Registration No. 10-1893936 (a movable negative pressure bag with a gas frame support structure) has been disclosed.

The disclosed negative pressure bag includes: front and rear plate members molded from plastic and having a semi-disk shape in which holes are perforated, respectively; It is provided in a hemispherical shape to form an inner area for accommodating a patient when used by fixing the front and rear plate members to the front and rear surfaces. a flexible protective cover provided with a connected sealing zipper and having an external air intake formed on the rear surface to facilitate folding; a plurality of handle members each having an upper surface fixed to the lower surface of the flexible protective cover at regular intervals, one end and the other end protruding outward to be gripable, each having a hole for a handle formed therein; a gas frame part installed on the surface of the flexible protective cover in the transverse and longitudinal directions to inject the gas generated from the gas generating part, thereby maintaining the shape of the flexible protective cover; An exhaust means installed on the front surface of the flexible protective cover to filter and discharge the internal air, wherein the gas generating unit is formed by an adhesive or ultrasonic fusion at the lower end of the longitudinal gas frame formed in the longitudinal direction in which the gas flow hole is formed. is fixed including a gas flow hole by a gas generating receptor, the upper part is opened and the gas outlet hole is formed on the outer surface thereof A tea bag for soda filled with soda so that And, one end is fixedly installed on the upper surface of the citric acid water storage unit, and the other end is positioned toward the bottom so that the user can damage the floor by pressing the upper surface of the citric acid water storage unit so that the stored citric acid water can be supplied to the gas generating receptor side. A breakage member is provided.

Domestic Patent Publication No. 10-1893936 (movable negative pressure bag with gas frame support structure)

The present invention was created to solve the above problems, and it is easy to operate because there is no need to carry an oxygen cylinder, it is possible to supply oxygen stably, and the shape of the negative pressure chamber is not distorted even over time, having an oxygen generator An object of the present invention is to provide a movable negative pressure chamber device.

The movable negative pressure chamber device having an oxygen generator of the present invention as a means of solving the problems for achieving the above object provides a space in which a transfer target is accommodated, is opened and closed by a zipper, and the shape is maintained by a plurality of flexible supports. chamber; a supporter positioned on the opposite side with the space portion interposed therebetween, each of which is coupled to the negative pressure chamber; a negative pressure maintainer supported on one side of the supporter and filtering the air inside the negative pressure chamber and then exhausting it to maintain the pressure inside the negative pressure chamber lower than atmospheric pressure; It is characterized by having an oxygen generator supported by the other supporter to generate oxygen and supply it to the space of the negative pressure chamber.

In addition, to the oxygen generator; It is characterized in that it includes an oxygen generator for producing oxygen, a controller for controlling the oxygen generator, and a rechargeable battery for supplying power to the oxygen generator.

In addition, the negative pressure maintainer; It is characterized in that it comprises an exhaust pump for exhausting air in the dark chamber, a filter for purifying the air exhausted by the exhaust pump, a controller for controlling the exhaust pump, and a rechargeable battery for applying power to the exhaust pump. .

In addition, a power supply for supplying power to the oxygen generator and the negative pressure maintainer is further provided.

In addition, the power source is connected to the cigar jack socket of the vehicle, characterized in that it includes a cigar jack cable for applying the power of the vehicle battery.

In addition, by detecting the oxygen concentration inside the negative pressure chamber and transmitting the detected content to the control unit of the oxygen generator, the control unit is characterized in that it further includes an oxygen concentration sensing unit to adjust the output of the oxygen generation unit.

In addition, it is characterized in that it further includes a differential pressure sensing unit that senses the pressure inside the negative pressure chamber and transmits the detected content to the control unit of the negative pressure maintainer so that the control unit adjusts the output of the exhaust pump.

And, the supporter; It is characterized in that it comprises a close contact fixing part fixed to the side of the negative pressure chamber, and a support part located at the lower end of the close contact fixing part to maintain the standing state of the close contact fixing part.

In addition, the supporter; A plate-shaped close contact fixing part fixed to the side of the negative pressure chamber, a support part located at the lower end of the close contact fixing part and rotatably linked with respect to the close contact fixing part through a connecting pin, and the close contact fixing part of the sealed chamber By elastically biasing in the opposite direction, it is characterized in that it is provided with a torsion spring that allows the close contact to tension the sealing chamber.

In addition, it is characterized in that the anti-fogging layer is laminated on the inner surface of the negative pressure chamber.

The movable negative pressure chamber device having an oxygen generator of the present invention as described above, because the oxygen generator is integrally provided in the negative pressure chamber to continuously supply oxygen, there is no need to carry a cumbersome oxygen cylinder, and thus the operation is simple, and in particular, the oxygen Stable supply is possible and reliability is high.

In addition, since the negative pressure chamber is stretched and unfolded by the physical support force of the supporter in which the negative pressure maintainer and the oxygen generator are installed, the shape of the negative pressure chamber is not distorted by gravity even over time.

1 is a block diagram showing the overall configuration of a mobile negative pressure chamber device having an oxygen generator according to an embodiment of the present invention.
2 is an exploded perspective view of a mobile negative pressure chamber device having an oxygen generator according to an embodiment of the present invention.
3 is a front view of the negative pressure chamber device shown in FIG.
4 is a partial cross-sectional view for explaining a method of fixing the oxygen generator to the dark chamber in the movable negative pressure chamber device having an oxygen generator according to an embodiment of the present invention.
5 is a cross-sectional view taken along line AA of FIG. 3 .
6 is a view showing a modified example of a supporter that can be applied to the movable negative pressure chamber device having an oxygen generator according to an embodiment of the present invention.
7 is a front view of the negative pressure chamber apparatus in which the supporter of FIG. 6 is mounted.

Hereinafter, one embodiment according to the present invention will be described in more detail with reference to the accompanying drawings.

Basically, the portable negative pressure chamber device of the present invention is not only a negative pressure maintainer but also an oxygen generator integrally configured, so it is easy to use because there is no need to carry a separate oxygen cylinder, and there is no need to worry about the remaining amount of oxygen, so it is highly reliable.

The negative pressure chamber device includes: a negative pressure chamber that provides a space in which a transfer target is accommodated, is opened and closed by a zipper, and whose shape is maintained by a plurality of flexible supports; a supporter positioned on the opposite side with the space portion interposed therebetween, each of which is coupled to the negative pressure chamber; a negative pressure maintainer supported on one side of the supporter and filtering the air inside the negative pressure chamber and then exhausting it to maintain the pressure inside the negative pressure chamber lower than atmospheric pressure; An oxygen generator supported by the other supporter to generate oxygen and supply it to the space of the negative pressure chamber is provided.

1 is a block diagram showing the overall configuration of a movable negative pressure chamber device 10 having an oxygen generator according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the movable negative pressure chamber device. In addition, FIG. 3 is a front view of the negative pressure chamber apparatus shown in FIG. 2 , FIG. 4 is a partial cross-sectional view for explaining a fixing method of the oxygen generator to the negative dark chamber, and FIG. 5 is a cross-sectional view taken along line A-A of FIG. 3 .

As shown, the movable negative pressure chamber device 10 having an oxygen generator according to the present embodiment includes a negative pressure chamber 20, a supporter 31, a negative pressure maintainer 40, an oxygen generator 50, and a differential pressure sensing unit. 63 , an oxygen concentration sensing unit 61 , and a power source 65 .

The negative pressure chamber 20 is an integrated plastic case that provides a space portion 20a in which an infected patient, that is, a transfer subject is accommodated. The negative pressure chamber 20 is manufactured by high-frequency bonding of the transparent light-transmitting sheet 20c, and has a size that can be mounted on a medical bed as well as fit into a CT equipment. Also, on the side, a closed passage (not shown) in which various medical instruments can be put into the space portion 20a is located. A polyurethane sheet can be used as the translucent sheet.

In addition, the space portion (20a) of the negative pressure chamber (20) can be opened and closed by the zipper (29). As long as the space portion 20a can be opened and closed, the position of the zipper 29 may be varied.

This negative pressure chamber 20 has a cover part 21 , a bottom part 25 , and a side wall part 23 . The cover portion 21 serves as a roof of the space portion 20a and has a plurality of access portions 27 on both sides thereof. The access unit 27 has the structure of FIG. 5 as a passage through which a medical personnel transporting a patient puts a hand. This will be described later.

In particular, as shown in FIG. 3 , a plurality of flexible supports 24 are built in the cover 21 . The flexible support 24 is a hollow pipe with both ends closed and closed, and prevents the cover 21 from sagging, like a frame of a plastic house. For this purpose, both ends of the flexible support 24 reach the bottom 25 and receive support force, of course. The flexible support 24 is made of synthetic resin of the same material as the cover part 21 . The size, spacing, and the like of the flexible support 24 are varied as needed.

In addition, the bottom part 25 is a floor sheet on which the patient lies, and the side wall part 23 is a part sealing both ends of the cover part 21 .

An anti-fogging layer 22 is laminated on the inner surface of the cover part 21 . The anti-fogging layer 22 prevents the cover 21 from fogging by the breathing of the patient accommodated in the negative pressure chamber 20 . The anti-fog layer 22 may be a coating agent having a chemical composition that prevents moisture from forming.

In addition, although not shown, a display means (that is, an indicator) indicating the number of times or total use time of the negative pressure chamber 20 may be installed inside the negative pressure chamber 20 . The user can determine whether to continue to use the negative pressure chamber 20 through such a display means.

In particular, the supporters 31 are fixed to both sidewalls. The supporter 31 is made of a hard synthetic resin such as polycarbonate, and is located on the opposite side with the space portion 20a of the negative pressure chamber 20 interposed therebetween. Support and keep deployed. For example, to prevent the cover portion 21 of the negative pressure chamber 20 from sagging due to gravity and sinking.

As long as the negative pressure chamber 20 can be prevented from deflecting, the position of the supporter 31 may be changed. For example, it may be mounted to face each other in the space portion (20a) of the negative pressure chamber (20). In other words, the contact fixing part 31a to be described later can be in close contact with the inward surface of the side wall part 23 , and the support part 31b can be brought into close contact with the upper surface of the bottom part 25 .

The supporter 31 has a close contact fixing part 31a and a support part 31b. The close contact portion 31a is fixed to the side wall portion 23 of the negative pressure chamber, and the support portion 31b is fixed to the bottom surface of the floor portion 25, and is placed on a medical bed or floor, and the contact portion is vertical. maintain a standing position. That is, the close contact fixing portion (31a) is to hold so that it does not pass in the direction of the arrow e.

The negative pressure maintainer 40 is fixed to the outer surface of the close contact part 31a of the one side supporter 31, and filters the air inside the negative pressure chamber 20 and then exhausts the air so that the pressure inside the negative chamber is lower than atmospheric pressure. to keep it A sound-absorbing sheet 33 is interposed between the negative pressure retainer 40 and the close contact portion 31a. The sound-absorbing sheet 33 absorbs noise generated during the operation of the negative pressure maintainer 40 .

The negative pressure maintainer 40 includes a control unit 41 , an exhaust pump 42 , a filter 43 , and a rechargeable battery 44 . The control unit 41 serves to control the exhaust pump 42 . The user may set the negative pressure maintainer 40 to an automatic or manual operation mode through the control unit 41 . For example, the pressure inside the negative pressure chamber 20 may be adjusted in 10 steps within the range of -10Pa to -40Pa.

The control unit 41 may include a display unit (not shown). Through the display unit, the pressure inside the negative pressure chamber 20 received from the differential pressure sensing unit 63 and the remaining amount of the rechargeable battery 44 are displayed. Furthermore, it may further include a warning light that operates when an abnormality occurs.

The exhaust pump 42 is operated by the control unit 41 to exhaust the air in the dark chamber to the outside. It goes without saying that an air flow passage is provided inside the negative pressure maintainer 40 . The filter 43 is installed in the air flow passage, and filters out contaminants such as viruses and droplets in the exhausted air.

The rechargeable battery 44 supplies power required for the operation of the negative pressure maintainer 40 . The duration of the rechargeable battery 44 may be about 5 hours in consideration of the movement time of the patient. However, the capacity of the rechargeable battery 44 may be designed differently according to need.

This negative pressure maintainer 40 is interlocked with the differential pressure sensing unit (63). The differential pressure sensing unit 63 senses the pressure inside the negative pressure chamber and transmits the sensing contents to the control unit 41 so that the control unit 41 adjusts the output of the exhaust pump 42 .

In addition, the negative pressure retainer 40 is further provided with a plurality of terminal holes (45a) and power lines (45c). The terminal hole 45a is a hole through which the terminal 47c of the cigar jack cable 47 is inserted. The cigar jack cable 47 is a cable that applies battery power of the ambulance to the negative pressure maintainer 40 and is used in an emergency. For example, it is used when there is little remaining amount of the rechargeable battery 44 .

The cigar jack cable 47 includes a cigar jack 47a fitted into the cigar jack socket 65a of the ambulance, a cable 47b extending in the longitudinal direction, and a terminal hole 45a fixed to the extended end of the cable 47b. It consists of a terminal 47c to connect. Power supplied through the cigar jack cable 47 may be transferred to the rechargeable battery 44 or may be directly applied to the driving circuit inside the negative pressure maintainer 40 .

The power line 45c is used indoors. That is, when the dark chamber device 10 arrives in the hospital, it is inserted into the power outlet 65c located on the indoor wall.

On the other hand, the oxygen generator 50 is mounted on the other side supporter 31, produces oxygen and supplies it into the space of the negative pressure chamber. As already mentioned, it is to replace the oxygen cylinder used in the past.

The oxygen generator 50 includes an oxygen generator 52 , a controller 53 , a pump 55 , and a rechargeable battery 57 . The oxygen generator 52 is controlled by the controller 53 and generates oxygen. The principle of oxygen generation is the same as that of a general oxygen generator.

Oxygen produced by the oxygen generator 52 is transferred into the negative pressure chamber 20 through the oxygen filter 59 and the air stopper 59b through the pump 55 . When the oxygen filter 59 is replaced, the air stopper 59b blocks the oxygen passage to prevent foreign substances from flowing into the negative pressure chamber 20 . The structure of the air stopper 59b itself may be different as long as it can perform this function. Reference numeral 51a in FIG. 3 denotes a nozzle unit. Oxygen can reach farther through the nozzle part 51a.

The air stopper (59b) can be applied to other parts where the filter is installed, for example, the negative pressure maintainer (40).

If necessary, an oxygen mask (not shown) may be provided inside the negative pressure chamber 20 , and a portion of oxygen supplied to the negative pressure chamber 20 may be induced into the oxygen mask. The rechargeable battery 57 supplies power necessary for driving the oxygen generator 52 . The duration of the rechargeable battery 57 may be about 3 hours.

The oxygen generator 50 is interlocked with the oxygen concentration sensing unit 61 . The oxygen concentration sensing unit 61 senses the oxygen concentration inside the negative pressure chamber 20 and transmits the sensed contents to the control unit 53 of the oxygen generator, so that the control unit adjusts the output of the oxygen generator. Through the oxygen concentration sensing unit 61 and the control unit 53, an oxygen site group having a constant concentration can be automatically maintained at all times. For reference, in the past, the oxygen concentration could not be automatically adjusted according to the ever-changing situation as it was a structure in which oxygen cylinders were simply connected.

The sound-absorbing sheet 33 is also interposed between the oxygen generator 50 and the adhesion fixing part 31a. The sound-absorbing sheet 33 absorbs noise generated during the operation of the oxygen generator 50 .

This oxygen generator 50, like the negative pressure maintainer 40, can be driven by connecting the cigar jack cable 47 or the power line 45c as needed.

The power source 65 includes a cigar jack socket 65a and a power outlet 65c. The cigar jack socket 65a is a power outlet installed in the driver's seat of the ambulance. When transporting the patient to the ambulance, the power of the vehicle battery may be supplied to the negative pressure maintainer 40 or the oxygen generator 50 using the cigar jack cable 47 . The power outlet 65c is a 220 volt outlet installed on an indoor wall.

The access unit 27 is a passage through which medical personnel put their hands so that the patient can take necessary measures. Mounting holes 21c are perforated on both sides of the cover 21 so that the access portion 27 can be installed.

The access unit 27 includes a holder 27a, a glove housing 27f, and a sealing cap 27m.

The holder 27a is a cylindrical member having a coupling screw portion 27b formed on an outer circumferential surface and an inner circumferential surface, and is adhesively fixed to the inner surface of the cover portion 21 through a bonding sleeve 27c provided at one end.

The glove housing (27f) accommodates the protective gloves (27k) and is inserted into the holder (27a) to be screwed into the coupling screw portion (27b). For this purpose, it is natural that a male screw portion 27g is provided on the outer surface of the glove housing 27f. The protective glove 27k is in a state in which the inlet portion is in close contact with the inner circumferential surface of the glove housing 27f and is opened to the outside. When the user extends his hand toward the space portion 20a, the protective glove 27k may be worn.

Since the glove housing 27f is screwed with respect to the holder 27a, the glove housing 27f may be removed as needed to sterilize the protective gloves 27k. It is also possible to replace the glove housing (27f) together with the protective gloves (27k).

The sealing cap (27m) is installed when the access part (27) is not in use to prevent foreign substances from entering the protective glove (27k).

6 is a view showing a modified example of the supporter 31 that can be applied to a movable negative pressure chamber device having an oxygen generator according to an embodiment of the present invention, and FIG. 7 is a negative pressure chamber device in which the supporter of FIG. 6 is mounted. is a front view of

The supporter 31 shown in FIG. 6 includes a close contact fixing part 31a, a support part 31b, a connecting pin 31g, and a torsion spring 31h.

The adhesion fixing part 31a is a plate-shaped member having a certain thickness and is adhesively fixed to the outer surface of the side wall part 23 of the negative pressure chamber 20 . A protrusion 31f is formed in the center of the lower end of the close contact fixing portion 31a. The protrusion 31f is a portion to be fitted into a groove portion 31e, which will be described later, and has a through-type pin hole (not shown).

The support part 31b is located at the lower end of the close contact fixing part 31a and is closely fixed to the bottom surface of the bottom part 25 . The bonding of the support part 31b to the bottom part 25 may be an adhesive method. In addition, a groove portion 31e is formed on one side of the support portion 31b. The groove part 31e accommodates the protrusion part 31f. Pin holes (not shown) are provided on both sides of the groove portion 31e. When the protrusion 31f is inserted into the groove 31e, the pin hole formed in the close contact fixing portion and the pin hole provided in the support portion are aligned in a straight line.

In addition, stoppers 31m are fixed to both ends of the support portion 31b in the width direction. The stopper 31m prevents the close contact fixing part 31a from passing to the support part 31b side.

The connecting pin 31g is fitted in the pin hole to rotatably support the close contact fixing portion 31a with respect to the receiving portion 31b.

The torsion spring (31h) elastically supports the close contact fixing part (31a) in the arrow k direction in a state embedded in the support part (31b). By the action of the torsion spring 31h, the close contact fixing part 31a is elastically biased in the direction of the arrow z of FIG. Since the close contact portion 31a is fixed to the side wall portion 23 of the negative pressure chamber 20, the negative pressure chamber 20 is eventually tensioned by the supporters 31 on both sides to maintain a taut state. The negative pressure chamber 20 does not sag downward under the action of gravity. In the past, a separate support rod was installed to prevent deflection of the negative pressure chamber.

As mentioned above, although the present invention has been described in detail through specific embodiments, the present invention is not limited to the above embodiments, and various modifications are possible by those of ordinary skill within the scope of the technical spirit of the present invention.

10: negative pressure chamber device 20: negative pressure chamber 20a: space part
20c: transparent sheet 21: cover part 21c: mounting hole
22: anti-fog layer 23: side wall 24: flexible support
25: bottom 27: access portion 27a: holder
27b: coupling screw portion 27c: bonding sleeve 27f: glove housing
27g: male thread 27k: protective gloves 27m: sealing cap
29: Zipper 31: Supporter 31a: Adhesive fixing part
31b: support part 31e: groove part 31f: protrusion part
31g: Connection pin 31h: Torsion spring 31m: Stopper
33: sound absorption sheet 40: negative pressure maintainer 41: control unit
42: exhaust pump 43: filter 44: rechargeable battery
45a: terminal hole 45c: power line 47: cigar jack cable
47a: Cigar Jack 47b: Cable 47c: Terminal
50: oxygen generator 51a: nozzle part 52: oxygen generator part
53: control unit 55: pump 57: rechargeable battery
59: oxygen filter 59a: nozzle 59b: air stopper
61: oxygen concentration sensing unit 63: differential pressure sensing unit 65: power
65a: Cigar Jack Socket 65c: Power Outlet

Claims (10)

a negative pressure chamber which provides a space in which a transfer target is accommodated, is opened and closed by a zipper, and whose shape is maintained by a plurality of flexible supports;
a supporter positioned on the opposite side with the space portion interposed therebetween, each of which is coupled to the negative pressure chamber;
a negative pressure maintainer supported on one side of the supporter and filtering the air inside the negative pressure chamber and then exhausting it to maintain the pressure inside the negative pressure chamber lower than atmospheric pressure;
A movable negative pressure chamber device having an oxygen generator, which is supported by the other supporter and includes an oxygen generator that generates oxygen and supplies it to the space of the negative pressure chamber. According to claim 1,
to the oxygen generator;
an oxygen generator that produces oxygen; and
a control unit for controlling the oxygen generating unit;
A portable negative pressure chamber device having an oxygen generator, characterized in that it includes a rechargeable battery for supplying power to the oxygen generator. According to claim 1,
The negative pressure maintainer;
an exhaust pump for exhausting air in the umami chamber;
A filter that purifies the air exhausted by the exhaust pump;
a control unit for controlling the exhaust pump;
A portable negative pressure chamber device having an oxygen generator, characterized in that it includes a rechargeable battery for applying electric power to the exhaust pump. According to claim 1,
A mobile negative pressure chamber device having an oxygen generator, characterized in that the power supply for supplying power to the oxygen generator and the negative pressure maintainer is further provided. 5. The method of claim 4,
The power is
A mobile negative pressure chamber device having an oxygen generator, characterized in that it includes a cigar jack cable connected to the cigar jack socket of the vehicle to apply power from the vehicle battery. 3. The method of claim 2,
Mobile negative pressure chamber device having an oxygen generator, characterized in that it further comprises an oxygen concentration sensing unit that detects the oxygen concentration inside the negative pressure chamber and transmits the detected content to the control unit of the oxygen generator, so that the control unit adjusts the output of the oxygen generator . 4. The method of claim 3,
The portable negative pressure chamber device having an oxygen generator, characterized in that it further comprises a differential pressure sensing unit that senses the pressure inside the negative pressure chamber and transmits the detected content to the control unit of the negative pressure maintainer so that the control unit adjusts the output of the exhaust pump. According to claim 1,
The supporter;
A close-fitting part fixed to the side of the negative pressure chamber,
A movable negative pressure chamber device having an oxygen generator, which is located at the lower end of the close contact and includes a support for maintaining the standing state of the close contact. According to claim 1,
The supporter;
A plate-shaped close-fitting part fixed to the side of the negative pressure chamber,
a support portion located at the lower end of the close contact and rotatably linked through a connecting pin with respect to the close contact;
A movable negative pressure chamber device having an oxygen generator, characterized in that it has a torsion spring that elastically biases the close contact portion in the opposite direction of the hermetic chamber so that the close contact portion tensions the hermetic chamber. According to claim 1,
A movable negative pressure chamber device having an oxygen generator, characterized in that an anti-fog layer is laminated on the inner surface of the negative pressure chamber.

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