JP5695342B2 - Indoor simple installation type negative pressure isolation room - Google Patents

Description

The present invention is easily installed indoors for the purpose of preventing the spread of infection to the surroundings when accommodating highly toxic infectious disease patients such as new influenza and avian influenza in indoors such as hospital rooms. The present invention relates to an indoor simple installation type negative pressure isolation room.

Conventionally, when a tuberculosis patient who is a droplet infection is accommodated, an isolation accommodation facility in which the entire room has a negative pressure structure is used as a building facility such as a tuberculosis ward. However, since the isolation accommodation facility is expensive construction equipment and requires a large space including mechanical equipment, it is in a situation where it is installed only in limited hospitals nationwide.

Furthermore, when a pandemic is anticipated as a highly toxic infectious disease such as a new type of influenza or avian influenza, a shortage of negative pressure accommodation facilities such as the above-mentioned tuberculosis ward becomes a problem. As a product that responds to these situations, the inpatient's bed is covered with a curtain booth, and only a unit with a built-in high-performance filter and exhaust fan is used. Although there are some, the capacity to achieve a sufficient negative pressure as a storage facility is insufficient even though the ventilation rate and exhaust filter collection performance required by the US Centers for Disease Control (CDC) guidelines are satisfactory In addition, there are many other problems such as inconvenience in medical practice by hospital staff, and further, there are products that are far away from each other to maintain the comfort of the patient.

On the other hand, as for a simple isolation device that accommodates the patient with the infectious disease, past patent documents are searched retrospectively, and the devices described in the following patent documents 1 and 2 are known.

JP 2004-141239 A Japanese Patent Laid-Open No. 7-461

The “patient isolation unit” described in Patent Document 1 includes a foldable frame 2, a flexible covering 3 made of a flammable resin sheet that can be attached to the assembled frame 2, and a combustible frame 3. An exhaust unit 5 for exhausting air from inside the flexible covering 3 is provided, and the exhaust unit 5 is formed with an ultraviolet lamp, a HEPA filter, and a blower.

However, the “patient isolation unit” described in Patent Document 1 uses a HEPA filter that has a high ability to collect fine particles for exhausting the patient's room, performs filtration, and simply spreads the infection in a biohazardous manner. In addition, since the lower end edge of the flexible covering 3 and the floor surface are not sealed, the interior space is not hermetically sealed, and the interior space is not sealed by the exhaust unit 5. By sucking indoor air, a certain level of negative pressure is maintained, but not enough negative pressure can be maintained. Therefore, air contaminated with pathogenic bacteria by the patient from the living room to the outside. There was a problem of leakage.

Furthermore, the “patient isolation unit” described in Patent Document 1 is equipped with an ultraviolet lamp, but the ultraviolet lamp cannot sterilize the bacteria in the air and the HEPA filter. When the ultraviolet light from the ultraviolet lamp is irradiated for a long time, the HEPA filter becomes tattered and damaged.

In addition, the “patient isolation device” described in Patent Document 2 is an outer frame, a flexible covering that is hung from the frame and is lowered in the frame, and is preferably disposable. Covering body with one side, a front wall part and a rear wall part, with closable entry means attached to one or the front wall part allowing patient entry; filtering off infectious particles from the air One of the openings in the wall portion to which the integral filter means is mounted and is adapted to cooperate with the pump means so that air is drawn from the covering through the filter means by the pump means; A patient isolation device with valve means that allows the passage of air in one direction from the outside to the inside.

However, since the “patient isolation device” of Patent Document 2 is not sealed with the covering 14 and the floor surface, as in Patent Document 1, the inside of the enclosure 10 is not in a sealed state, and pump means. By sucking the air in the enclosure 10 by 50, a certain level of negative pressure is maintained, but it is not in a situation where a sufficiently sufficient negative pressure can be maintained, and therefore the contaminated air containing pathogenic bacteria of the patient from the room space. There was a problem of leaking outside.

Furthermore, the “patient isolation device” described in Patent Document 2 includes only an exhaust fan that filters and exhausts the air in the enclosure 10 to the outside, and is provided with a negative pressure adjustment mechanism by adjusting the air volume in the enclosure 10. Therefore, there was a problem that the negative pressure in the room could not be sufficiently maintained, and the contaminated air containing the pathogenic bacteria of the patient leaked to the outside.

The present invention has been made to solve the above-mentioned problems, and the entire space including the patient's bed is assembled with a metal or synthetic resin framework that can be easily assembled and disassembled, and an airtight synthetic material. Closely enclosed with a resin-made flexible covering sheet and a laying sheet to form a sealed patient room, and the room is provided with an air supply unit and an exhaust unit provided with a dry air filter. Each of the air supply units and the air supply / exhaust unit communicate with each other and adjust the air volume to maintain the negative pressure in the room of the patient, while the air supply unit also has the same dry air filter as the air exhaust unit. It is intended to provide an indoor simple installation type negative pressure isolation room that can be used to prevent the secondary infection of containment patients whose resistance is weakened by increasing the cleanliness of air. It is.

The present invention relates to a metal or synthetic resin framework that can easily assemble and disassemble the entire space including the patient's bed, and a highly flexible synthetic resin flexible covering and covering sheet. And an air supply and exhaust unit each having an air volume adjusting mechanism comprising a dry air filter and a blower means are connected to the room, and the room is sealed. The pressure difference between the inside and the inside is adjusted within the range of 1.5 Pa to 7 Pa, and the room is maintained in a negative pressure state so that air contaminated with the pathogenic bacteria of the patient does not leak from the room to the outside. On the other hand, a metal or synthetic resin framework material that can be easily disassembled and a high-density synthetic resin flexible covering sheet and covering sheet that are tightly enclosed and sealed The room is connected to the room In which are formed by further Bei Etaya in simple stationary shade pressure system isolation chamber first and second two pass chamber in front chamber is,
The front chamber is formed in communication with one side surface of the covering sheet constituting the living room, and is joined and fixed in a small cubic frame shape by the same material as the frame material constituting the living room. Forming the body and surrounding the outer periphery of the side frame constituting the four side faces of the front chamber cover frame with a cover sheet made of the same material as the cover sheet of the living room, and both cutting edges thereof The bottom portion of the covering sheet is folded inside the rectangular frame-shaped bottom frame constituting the bottom surface of the front chamber covering frame, While forming the bent piece by extending the front part inwardly, the rectangular frame-like upper frame constituting the upper surface of the covering frame was formed in a reverse concave shape with a sheet of the same material as the covering sheet. A reverse concave covering sheet is covered from above and is in sliding contact with the upper outer peripheral surface of the covering sheet. Furthermore, a relatively thick and heavy laying sheet is laid on the floor surface including the bent piece folded inside the bottom frame, and the entrance side opening of the first passage chamber of the front chamber is provided. The covering sheet provided with both the cut edge portions is positioned as a shielding sheet cut up and down, and the upper end is fixed to the upper frame so as to hang down, and the second continuous with the first passage chamber. The passage chamber has an interval at which the hospital worker can enter or leave the entrance portion, and the shielding sheet that shields the first passage chamber is cut up and down to divide the passage chamber into the upper frame. A slide fastener male is formed on both cut edge portions of the first and second passage chambers which are vertically cut and formed on both sides of the shielding sheet. The strip and female strip are fixed facing each other, and the opening and closing operation of the slide fastener is performed. The Rukoto, without leaking before the indoor air that is contaminated with pathogenic bacteria of the patient from the room through the passage chamber, by hospital personnel formed to allow exit enter, or from room to the room, the Solved the problem.

According to the present invention configured as described above, the entire space including the containing patient's bed can be easily assembled and disassembled with a metal or synthetic resin framework, and with a high density synthetic resin flexibility. A front room having first and second passage chambers that are tightly surrounded by a covering sheet and a laying sheet and sealed, and is connected to the living room and serves as a passage to the living room. It can be installed very easily and quickly indoors in a hospital or the like, and the male strips and female strips of the slide fastener are formed on both cut edge portions of the first and second passage chambers which are cut vertically. By facing and fixing the belt, and opening and closing the slide fastener, the hospital worker passes through the passage chamber and leaks air contaminated with pathogenic bacteria of the patient into the anterior chamber without the leakage of the air into the anterior chamber. You can enter or leave the room Because it is formed as secondary infection of weakened accommodating patients resistant can be achieved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall schematic perspective view showing a first embodiment of an indoor simple installation type negative pressure type isolation chamber according to the present invention with a part cut away. FIG. It is the same top view. It is a longitudinal cross-sectional view of the bottom face part. It is the whole schematic perspective view which shows the 2nd Example of the indoor simple installation type negative pressure system isolation | separation room | chamber of this invention notching one part. It is the same top view. It is the whole schematic perspective view which shows a 3rd Example of this invention indoor simple installation type negative pressure system isolation | separation chamber partly notched.

A first embodiment of the present invention will be described in detail with reference to the drawings. The indoor simple installation type negative pressure type isolation room of the present invention is simply installed indoors in a hospital room or the like, and includes a patient's bed 1 and a hospital worker such as a doctor around the bed 1. Covers the entire space part 2 that can be moved for medical treatment and forms a patient room 3 for the patient, and a hospital worker enters the room 3 on one side of the cover 4. Or, when leaving the room 3, the front room 5 is connected to prevent the contaminated air containing the pathogenic bacteria of the patient from the room 3 from leaking to the outside (indoors such as hospital rooms such as hospitals). Configured.

The covering body 4 forming the living room 3 is formed by joining and fixing a metal or synthetic resin pipe-like or rod-like frame material 6 that is easy to assemble and disassemble into a cubic frame shape, The outer periphery of the side frame 7a constituting the four side surfaces of the covering frame 7 is surrounded by a synthetic resin covering sheet 8 having flexibility and high airtightness such as a vinyl sheet. Then, both the cutting edge portions are overlapped and fixed, and the lower end portion of the covering sheet 8 is bent inside the rectangular frame-shaped bottom frame body 7b constituting the bottom surface of the covering frame body 7, The bent portion 8a is formed by extending the portion inward so that the rectangular frame-shaped upper frame 7c constituting the upper surface of the coated frame 7 can be covered from above the upper frame 7c. The reverse concave shape formed in the reverse concave shape with the same material sheet as the covering sheet 8 A cover sheet 9 is covered from above the upper frame 7c, is in sliding contact with the upper outer peripheral surface of the cover sheet 8, and further includes a bent piece 8a bent inside the bottom frame 7b. In addition, a relatively thick and heavy laying sheet 10 is laid, so that the bent piece 8a is pressed from above and pressed onto the floor surface to maintain the sealed state in the living room 3. Has been.

The frame material 6 need not be particularly limited, but preferably, it is recommended that the surface in contact with the covering sheet 8 and the reverse concave covering sheet 9 is formed as a curved surface. By using curved surfaces, there is no possibility that the sheets 8 and 9 will be damaged even if they expand or contract due to the supply / exhaust of the air supply unit 11 and the exhaust unit 12 described later. Further, the covering sheet 8 is preferably formed of a transparent sheet so that the patient in the living room 3 can visually recognize from the inside. However, in consideration of the psychological state of the patient on the bed 1, the covering sheet 8 cannot be easily seen from the inside. The lower half may be opaque.

Then, outside the living room 3 covered with the covering sheets 8 and 9 and the laying sheet 10 having the above-described configuration, an air supply unit 11 and an exhaust unit 12 each having an air volume adjusting mechanism communicating with the living room 3 are installed. By adjusting the supply / exhaust of the air supply unit 11 and the exhaust unit 12, the differential pressure between the inside of the living room 3 and the outside can be set within a range of 1.5 Pa to 7 Pa.

The air supply unit 11 is for supplying indoor air such as a hospital room in a hospital as clean air into the living room 3 by a dry air filter, and is not particularly limited, but preferably comprises a dry air filter. It is recommended that the pre-filter 13, the semi-HEPA filter 14, the HEPA filter 15, and the fan serving as the air blowing means 16 be provided. And particularly preferably, as shown in FIG. 3, the pre-filter 13 from the upstream side toward the downstream side, the semi-HEPA filter 14 capable of collecting 90.00% or more of fine particles of 0.3 μm or more, and the blowing means It is recommended that the HEPA filter 15 capable of collecting 99.97% or more of the fan No. 16 and the fine particles of 0.3 μm or more be sequentially installed and formed. In the figure, reference numeral 17 denotes an air supply pipe which communicates the air supply unit 11 and the living room 3 and supplies clean air into the living room 3.

As described above, the air supply unit 11 collects pathogenic bacteria from the air contaminated with various pathogenic bacteria in the hospital by installing the pre-filter 13, the semi-HEPA filter 14 and the HEPA filter 15 in this order from the upstream side. Thus, it is possible to supply air into the living room 3 as clean air. Further, on the upstream side of the HEPA filter 15 at the final stage, the pre-filter 13 and the quasi-HEPA filter 14 having a collection performance difference within about 10% from the HEPA filter 15 as the collection performance for fine particles of 0.3 μm or more. The frequency of replacement of the last stage HEPA filter 15 facing the living room accommodating the patient can be reduced.

The exhaust unit 12 exhausts the contaminated air containing the pathogenic bacteria of the patient in the living room 3 to the outside of the living room 3 as aseptic clean air, and includes a pre-filter 18 made of a dry air filter and The HEPA filter 19 and the air blowing means 20 are provided. The exhaust unit 12 is not particularly limited, but as shown in FIG. 3, the prefilter 18 and the HEPA filter that collects 99.97% or more of fine particles of 0.3 μm or more from the upstream side toward the downstream side. 19 and the fan that becomes the air blowing means 20 may be formed in order, or although not shown, the exhaust unit 12 is arranged from the upstream side to the downstream side with the pre-filter 18 and the air blowing means 20. And a HEPA filter 19 that collects 99.97% or more of fine particles of 0.3 μm or more may be installed in order. In the figure, reference numeral 21 denotes an exhaust pipe that communicates the exhaust unit 12 with the living room 3 and exhausts contaminated air in the living room 3 to the exhaust unit 12.

As described above, the exhaust unit 12 is installed in the order of the pre-filter 18 and the HEPA filter 19 from the upstream side, thereby collecting pathogenic bacteria from the air contaminated with the pathogenic bacteria of the patient in the living room 3 and aseptic clean air. As can be exhausted indoors. In addition, by installing the pre-filter 18 on the upstream side of the HEPA filter 19, the replacement frequency of the HEPA filter 19 can be reduced.

Then, by connecting the air supply unit 11 and the exhaust unit 12 to the living room 3, for example, the air volume supplied from the air supply unit 11 is adjusted to about 70 to 80% of the air volume exhausted from the exhaust unit 12. Then, a differential pressure can be formed between the living room 3 and the indoor space, and the inside of the living room 3 can be adjusted to an appropriate negative pressure space. That is, by appropriately adjusting the supply / exhaust of the air supply unit 11 and the exhaust unit 12, the room 3 includes a negative pressure level of 2.5 Pa or more as in the tuberculosis ward as shown in the US CDC guidelines. The negative pressure can be adjusted to a range of at least 1.5 Pa to 7 Pa.

Furthermore, in the living room 3 that is covered with the covering 4 having the above-described configuration and is maintained at a negative pressure in the range of 1.5 Pa to 7 Pa, a hospital worker maintains the negative pressure, In order to be able to enter and leave the room, a front room 5 is installed outside the living room 3.

The front chamber 5 is formed to communicate with one side surface of the covering sheet 8 constituting the covering body 4, and is bonded and fixed in a small cubic frame shape by the same material as the frame material 6 to cover the front chamber. The outer periphery of the side frame 23a forming the frame 23 and constituting the four side surfaces of the front chamber covering frame 23 is surrounded by a covering sheet 24 made of the same material as the covering sheet 8 of the living room 3. Then, both the cut end edges 24a are positioned in the inlet side opening 26 of the first passage chamber 25a described later, and the lower end portion of the covering sheet 24 constitutes the bottom surface of the front chamber covering frame 23. A rectangular frame-shaped upper frame constituting the upper surface of the covering frame 23 is formed by bending the rectangular frame-shaped bottom frame 23b to the inner side and extending the tip thereof inward to form a bent piece 24b. So that the body 23c can be covered from above the upper frame 23c. A reverse concave covering sheet 27 formed in a reverse concave shape with a sheet of the same material as the covering sheet 24 is covered from above the upper frame 23c, slidably contacted with the upper outer peripheral surface of the covering sheet 24, and further, the bottom frame By laying a relatively thick and heavy laying sheet 28 on the floor surface including the bent piece 24b bent inside the body 23b, the bent piece 24b is pressed from above and pressed onto the floor surface. And it is formed so that the sealed state in the front chamber 5 may be maintained.

Note that the frame material 6 located in the entrance-side opening 26 of the bottom frame 23b constituting the front chamber covering frame 23 is an obstacle when the front chamber 5 enters and exits the first passage chamber 25a. Therefore, it is preferable not to install as shown in FIGS.

The front chamber 5 formed by the front chamber covering frame 23 includes a plurality of passage chambers 25. The plurality of passage chambers 25 constituting the front chamber 5 (in FIGS. 1 to 3). The two passing chambers are shown) as a shielding sheet 29a obtained by cutting the covering sheet 24 provided with both the cut edge portions 24a located at the inlet side opening 26 of the first passing chamber 25a vertically. The second passage chamber 25b connected to the first passage chamber 25a has an interval at which the hospital worker can enter or leave the entrance at the entrance of the second passage chamber 25b. A shielding sheet 29b that shields the first passage chamber 25a is vertically cut and divided into two parts, and the upper end is fixedly attached to the auxiliary frame member 23d installed on the upper frame 23c. Is formed.

Furthermore, the male strip and the female strip of the slide fastener 30 are faced to both cut end edges 24a of the first and second passage chambers 25a and 25b cut up and down of the shielding sheets 29a and 29b. By fixing and opening / closing the slide fastener 30, the air in the living room 3 is not leaked to the outside when a hospital worker enters or leaves the room. Although not shown, the object can be achieved by simply overlapping and joining the cut end edges 24a without using the slide fastener 30.

And in order to allow a hospital worker to enter or leave the living room 3 from the second passage chamber 25b of the front chamber 5, the second passage chamber 25b and the covering sheet 8 are closely packed. It is communicated. Although the communication method between the second passage chamber 25b and the covering sheet 8 is not particularly limited, it is recommended to form the second passage chamber 25b and the covering sheet 8 as shown in FIGS.

That is, the covering sheet 24 on the side of the second passage chamber 25b facing the covering sheet 8 is cut into a height and a width that allow a hospital worker to pass through to form the passing opening 31, and the opening of the passing opening 31 is also provided. The male strip 32a of the slide fastener 32 is provided around the edge, while the coating sheet 8 facing the passage opening 31 faces the male strip 32a of the slide fastener 32 and engages with the male strip 32a. The covering strip 8 surrounded by the strip strip 32b is vertically cut and divided into two to form a shielding sheet 33. Further, the two-divided surface of the shielding sheet 33 is divided into two. In addition, the male strip and the female strip of the slide fastener 34 are faced and fixed to each other. Although not shown, the object can be achieved by simply overlapping and joining the two divided surfaces of the shielding sheet 33 without using the slide fastener 34.

The operation of the indoor simple installation type negative pressure isolation chamber according to the first embodiment of the present invention constructed as described above will be described. A bed 1 is installed in a sealed room 3 of the isolation room of the present invention that is easily assembled and installed indoors such as a hospital, and the air supply unit 11 and the exhaust unit 12 are operated. Further, the exhaust air volume of the exhaust unit 12 is increased, and the air volume is adjusted so that the inside of the living room 3 can be held in a negative pressure state by the differential pressure, and then the infectious disease patient is accommodated. Then, clean air is supplied into the living room 3 from the air supply unit 11, and pathogenic bacteria in the contaminated air containing pathogenic bacteria of the patient in the living room 3 are collected by the HEPA filter 19 constituting the exhaust unit 12. Then, it is possible to prevent the spread of infection to the surroundings by exhausting indoors as sterile clean air.

Further, since the inside of the living room 3 is maintained in a negative pressure state from the inside of the room, the contaminated air containing the pathogenic bacteria of the patient in the living room 3 does not leak from the inside of the living room 3 to the inside.

On the other hand, when a hospital worker enters the living room 3 when performing a medical treatment on an infectious disease patient isolated in the living room 3, the hospital worker sets the first passage room 25a of the front room 5 in the first room 25a. The slide fastener 30 of the shielding sheet 29a at the entrance opening 26 or the overlapping portion (not shown) is opened to enter the first passage chamber 25a, and then the slide fastener 30 of the shielding sheet 29a. Alternatively, the overlapping portion (not shown) is closed to block indoors.

Next, the slide fastener 30 of the shielding sheet 29b of the second passage chamber 25b or the overlapping portion (not shown) is opened to enter the second passage chamber 25b, and then the shielding sheet. The slide fastener 30 of 29b or the overlapping portion (not shown) is closed to shut off the first passage chamber 25a.

Then, the hospital worker who has entered the second passage chamber 25b opens the slide fastener 34 of the shielding sheet 33 of the passage opening 31 leading to the living room 3, or the overlapping portion (not shown), and opens the living room 3 Then, the slide fastener 34 or the overlapping portion (not shown) is closed. Thereby, the hospital worker can enter the living room 3 through the front room 5 maintained in a sealed state from the inside, and can perform medical treatment such as treatment for the patient. In addition, since the inside of the living room 3 is kept in the negative pressure state when the hospital worker enters the room, the contaminated air containing the pathogenic bacteria of the patient does not leak from the inside of the living room 3 into the front room 5.

Then, in the living room 3, the hospital worker after performing a medical treatment such as treatment on the patient performs the reverse operation to the entrance room, whereby the second passage chamber 25 b and the first passage are performed. Leave the room 25a and return indoors.

FIG. 5 is an overall schematic perspective view showing a second embodiment of the indoor simple installation type negative pressure type isolation chamber of the present invention, and FIG. 6 is a plan view thereof. In the first embodiment shown in FIGS. 1 to 3, the air supply unit 11 and the exhaust unit 12 are connected to the living room 3, respectively, whereas in the second embodiment shown in FIGS. The air supply unit 11 and the exhaust unit 12 are respectively connected to the living room 3, and further, the auxiliary air supply unit is provided in either the first passage chamber 25a or the second passage chamber 25b of the front chamber 5. 35 is connected (in FIG. 5 to FIG. 6, it is connected to the first passage chamber 25 a). Note that when the amount of air blown from the auxiliary air supply unit 35 sufficiently satisfies the role of the air supply unit 11, the air supply unit 11 may be omitted.

Although it is recommended that the auxiliary air supply unit 35 has the same structure as the air supply unit 11 connected to the living room 3, the dry air filter is a prefilter and a quasi-HEPA filter or a prefilter and a HEPA filter. Any two-stage configuration may be used. The attachment means is not particularly limited, but preferably, as shown in FIGS. 5 to 6, on the upper frame 23 c of the front chamber covering frame 23 constituting the front chamber 5, It is recommended that the reinforcing rod 36 be installed and installed on the reinforcing rod 36.

The auxiliary air supply unit 35 cleans and cleans indoor air through the auxiliary air supply unit 35 in either the first passage chamber 25a or the second passage chamber 25b of the front chamber 5. By supplying air as air, when a hospital worker enters or leaves the living room 3 from the front room 5, the air flowing into the living room 3 can be made into clean air. 3 can be prevented and further illness of the patient can be prevented.

Although not shown in the drawings, the isolation room of the present invention can easily make the inside of the living room 3 into a negative pressure state, but the air blown from the auxiliary unit 35 is introduced into the living room 3 from the bottom part of the living room 3. The air supply unit 11 is not necessary when the amount of the air sufficiently fulfills the role of the air supply unit 11.

FIG. 7 is an overall schematic perspective view showing a third embodiment of the indoor simple installation type negative pressure isolation chamber of the present invention. The third embodiment is a simplified isolation chamber as compared with the first and second embodiments, and is obtained by removing the front chamber 5.

The isolation room in the third embodiment has the same configuration as that of the first and second embodiments because the configuration of the living room 3 is the same as that of the first and second embodiments. Uses the above description and omits its detailed description. That is, the isolation room shown in the third embodiment is a passage part used when a hospital worker enters or leaves a room on any one of the four side walls of the covering sheet 8 of the covering 4. 37 is formed.

Since the passing portion 37 may be installed at one end of one side wall surface 8b of the covering sheet 8 of the living room 3, the covering sheet 8 is cut up and down to divide it into two to form a shielding sheet 38. The male strip and the female strip of the slide fastener 39 face each other and are fixed to the two split surfaces of the shielding sheet 38, and the slide fastener 39 is opened and closed, so that a hospital worker can enter and exit the room. It is formed so that the air in the living room 3 does not leak outside when leaving the room.

In addition, the indoor simple installation type negative pressure isolation room of the present invention sucks indoor temperature-controlled conditioned air, so there is no need to install a new large-scale temperature control air conditioner. For example, an indoor facility such as a gymnasium can be assembled as an isolated infectious disease room.

DESCRIPTION OF SYMBOLS 1 Patient's bed 2 Space part 3 Living room 4 Covering body 5 Front chamber 6 Frame material 7 Covering frame body 7a Side part frame body 7b Bottom part frame body 7c Upper frame body 8 Covering sheet 8a Bending piece 8b Side wall surface 9 Reverse concave covering sheet DESCRIPTION OF SYMBOLS 10 Cover sheet | seat 11 Air supply unit 12 Exhaust unit 13 Pre filter 14 Quasi-HEPA filter 15 HEPA filter 16 Blowing means 17 Air supply pipe 18 Prefilter 19 HEPA filter 20 Blowing means 21 Exhaust pipe 23 Front frame cover frame 23a side frame 23b bottom frame 23c upper frame 23d auxiliary frame member 24 covering sheet 24a both cutting edge portions 24b bent piece 25 passage chamber 25a first passage chamber 25b second passage chamber 26 inlet side opening portion 27 reverse concave covering sheet 28 Laying sheet 29a Shielding sheet 29b Shielding sheet 30 Slide fastener 31 Passing opening 32 Slide fastener 32 Ojotai 32b female strips 33 shielding sheet 34 slide fastener 35 auxiliary air supply unit 36 reinforcement rods 37 passing portion 38 shielding sheet 39 slide fastener

Claims (1)

The entire space, including the patient's bed, is tightly enclosed with a metal or synthetic resin framework that can be easily assembled and disassembled, and a flexible synthetic resin flexible covering and laying sheet. And an air supply and exhaust unit each having an air volume adjusting mechanism including a dry air filter and a blower means is connected to the room, and the room and the room are connected to each other. While adjusting the pressure difference between 1.5 Pa and 7 Pa to keep the room in a negative pressure state, the air contaminated with the pathogenic bacteria of the patient is prevented from leaking out from the room while being decomposed. Is a metal or synthetic resin frame material that is easy to seal, and a tightly enclosed synthetic resin-made flexible covering sheet and laying sheet, and the front chamber formed in a sealed manner is the living room Connected to the shape In is further Bei Etaya in simple stationary shade pressure system isolation chamber first and second two pass chamber in front chamber,
The front chamber is formed in communication with one side surface of the covering sheet constituting the living room, and is joined and fixed in a small cubic frame shape by the same material as the frame material constituting the living room. Forming the body and surrounding the outer periphery of the side frame constituting the four side faces of the front chamber cover frame with a cover sheet made of the same material as the cover sheet of the living room, and both cutting edges thereof The bottom portion of the covering sheet is folded inside the rectangular frame-shaped bottom frame constituting the bottom surface of the front chamber covering frame, While forming the bent piece by extending the front part inwardly, the rectangular frame-like upper frame constituting the upper surface of the covering frame was formed in a reverse concave shape with a sheet of the same material as the covering sheet. A reverse concave covering sheet is covered from above and is in sliding contact with the upper outer peripheral surface of the covering sheet. Furthermore, a relatively thick and heavy laying sheet is laid on the floor surface including the bent piece folded inside the bottom frame, and the entrance side opening of the first passage chamber of the front chamber is provided. The covering sheet provided with both the cut edge portions is positioned as a shielding sheet cut up and down, and the upper end is fixed to the upper frame so as to hang down, and the second continuous with the first passage chamber. The passage chamber has an interval at which the hospital worker can enter or leave the entrance portion, and the shielding sheet that shields the first passage chamber is cut up and down to divide the passage chamber into the upper frame. A slide fastener male is formed on both cut edge portions of the first and second passage chambers which are vertically cut and formed on both sides of the shielding sheet. The strip and female strip are fixed facing each other, and the opening and closing operation of the slide fastener is performed. Thus, the hospital worker can enter the room or leave the room without leaking air contaminated with the pathogen of the patient from the room through the passage room into the front room. An indoor simple installation type negative pressure isolation room.

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