CN210772541U - Sterile device - Google Patents

Abstract

The utility model provides a thin and low-noise aseptic device. The aseptic device (10) comprises: a return air unit (12) having a return air opening (26) formed in the side wall (24), a prefilter provided in series with the return air opening, and a fan (40) configured to be able to draw indoor air from the return air opening through the prefilter; and an air supply unit (14), wherein the air supply unit (14) has an air vent (68) formed in the wall surface so as to be able to suck in quasi-clean air (W2) supplied from the air return unit, an air supply port formed in the side wall facing the internal space of the sterile treatment room in which the sterile device (10) is installed, and a HEPA filter provided in connection with the air supply port, the air supply unit (14) is configured so as to be able to supply clean air (W3) from the air supply port in the Z direction through the HEPA filter, and the thickness of the air supply unit in the Z direction is 200mm or less.

Description

Sterile device

Technical Field

The utility model relates to an aseptic device.

Background

In recent years, there are cases where a device (sterile device) for controlling the concentration of fine particles suspended in the air in a room to a predetermined value or less and for controlling the temperature and humidity to a predetermined standard as necessary is installed in a ward or a treatment room depending on the type of treatment. Various air flow methods and air conditioning methods of the above-described apparatuses have been proposed in accordance with the applications of the apparatuses, and examples thereof include a unit air conditioning turbulent flow method (japanese: パッケージエアコン turbulent flow method), a vertical laminar flow method, and a horizontal laminar flow method.

The air conditioning system is a system in which clean air is blown out from the top to the bottom of a room and circulated, and is widely used. For example, patent document 1 discloses a clean room in which a plurality of fan filter units are mounted on an upper portion of a working chamber.

The vertical laminar flow system is a system in which a HEPA filter is disposed on a surface facing the inside of the sterile treatment room, such as a ceiling of the system, and clean air is blown out toward the floor surface and sucked from the floor surface by using a raised floor (japanese: アクセスフロアー) or the like. The horizontal laminar flow method is a method in which a HEPA filter is disposed on a surface facing the inside of the room in a side wall of the sterile treatment room, and clean air is blown out in the horizontal direction toward the side wall on the opposite side to circulate the air.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2018-204881

SUMMERY OF THE UTILITY MODEL

Problem to be solved by utility model

In an aseptic treatment room provided with an aseptic device of a horizontal laminar flow system, clean air blown out from the aseptic device passes over a hospital bed. Therefore, when the horizontal laminar flow type sterile device is used, fine particles such as dust are carried by the air flow of clean air and removed in the horizontal direction, and the fine particles can be prevented from remaining on and around the patient bed, as compared with the case where another type of sterile device is used. However, since the horizontal laminar flow type aseptic device is provided on the side wall of the aseptic treatment room as described above, there is a problem that the area of the internal space of the aseptic treatment room is reduced as compared with a device that can be provided in the head space like the other type of aseptic device. In order to secure the area of the internal space of the sterile treatment room, it is necessary to increase the area of the sterile treatment room before the sterile device is installed, and to reduce the thickness of the sterile device.

The utility model provides a slim aseptic device.

Means for solving the problems

The utility model discloses an aseptic device includes: a return air unit having a return air opening formed in a wall surface, a prefilter provided in connection with the return air opening, and a fan configured to be able to suck indoor air from the return air opening through the prefilter; and an air supply unit having an air vent formed in a wall surface so as to be capable of sucking the pseudo-clean air supplied from the air return unit, an air supply port formed in the wall surface, and a HEPA filter provided in connection with the air supply port, wherein the air supply unit is configured to be capable of supplying clean air from the air supply port in a predetermined direction through the HEPA filter, and a thickness of the air supply unit in the predetermined direction is 200mm or less.

In the sterile device of the present invention, the size of the air outlet of the fan in the predetermined direction may be 112mm or less.

In the sterilization apparatus of the present invention, the maximum thickness of the fan may be 131mm or less.

In the sterilization apparatus of the present invention, the air return unit may include a plurality of the fans, the plurality of fans may be disposed at different positions when viewed in the predetermined direction, the air supply port may be divided into regions having the same number as the number of the plurality of fans when viewed in the predetermined direction, and the quasi-clean air may be supplied from the plurality of fans to the respective regions of the plurality of regions of the air supply port.

In the sterilization apparatus of the present invention, a noise value measured at a predetermined position in the room when the fan is operated may be 40dB or less.

The utility model discloses an among the aseptic device, also can, the air feed portion includes air regulation plate, and this air regulation plate locates and compares HEPA filter leans on the position of the upstream side of accurate clean air regulation plate is formed with air regulation mouth, air regulation mouth's open area is along with certainly the upstream side of accurate clean air is to the downstream side and is marchd and reduce.

Effect of the utility model

By adopting the utility model, a thin aseptic device can be provided.

Drawings

Fig. 1 is a perspective view showing a sterile treatment room provided with a sterile device of the present invention.

Fig. 2 is a top view of the sterile device of the present invention.

Fig. 3 is a side view of the sterile device shown in fig. 2, as viewed from the inside of the chamber in a predetermined direction.

Fig. 4 is a perspective view of a main part of the sterile device shown in fig. 2.

Fig. 5 is a side view of the sterile device of fig. 3 with the faceplate and HEPA filter removed.

Fig. 6 is a side view showing a modification of the sterile apparatus shown in fig. 3.

Description of the reference numerals

10. A sterile device; 12. an air return part; 14. an air supply part; 24. a side wall (wall surface); 26. an air return port; 29. a prefilter; 40. 41, 42, 43, 44, fans; 63. a side wall (wall surface); 66. an air supply port; 70. a HEPA filter; 201. 202, 203, 204, an air volume adjusting plate; 211-1, 211-2, 211-3, 212-1, 212-2, 212-3, 212-4, 212-5, 213-1, 213-2, 213-3, 213-4, 213-5, 214-1, 214-2, 214-3 and an air volume adjusting port; w1, air (indoor air); w2, quasi clean air; w3, clean air; z, direction (predetermined direction).

Detailed Description

Hereinafter, preferred embodiments of the sterile device of the present invention will be described with reference to the drawings.

As shown in fig. 1, the sterile device 10 of the present invention is installed in a sterile treatment room 100 having high cleanliness. In the sterile treatment room 100, the concentration of the aerosol in the air in the room is suppressed to a predetermined value or less, and the temperature and humidity in the room can be controlled so as to satisfy a certain reference as needed.

A patient bed 110 is provided in the sterile treatment room 100. An end 112 of the hospital bed 110 on one side in the longitudinal direction is disposed along the side wall 102 of the sterile treatment room 100. The sterile device 10 is adjacent to the sidewall 102 and disposed between the sidewall 102 and the patient bed 110. The sterile device 10 is supported on the top of the sterile treatment room 100 by a support means (not shown) and is supported on the floor 108 of the sterile treatment room 100 by a support means 18 (see fig. 3). Hereinafter, a direction along a surface of the side wall 102 on the indoor side in the horizontal direction is referred to as an X direction, a vertical direction is referred to as a Y direction, and a normal direction of an XY plane including the X direction and the Y direction is referred to as a Z direction. Hereinafter, viewing along the Y direction may be simply referred to as a plan view.

The sterilization device 10 includes an air return 12 and an air supply 14. As shown in fig. 1 to 3, the air return portion 12 includes a quadrangular prism-shaped housing 20, and a prefilter 29 and a fan 40 housed in the housing 20. The side wall 21 of the housing 20 is adjacent to the side wall 102. A portion of the side wall 22 of the housing 20 on the side close to the side wall 21 is adjacent to the side wall 64 of the gas supply portion 14. The side wall 21 and the side wall 61 of the gas supply unit 14 are arranged substantially on a straight line in a plan view. A reading lamp 91 for a patient and a controller 92 capable of adjusting the volume of clean air supplied from the air supply unit 14 are attached to a portion of the side wall 22 of the housing 20 on the side close to the side wall 23.

A return air port 26 is formed in a side wall (wall surface) 24 located on the opposite side in the X direction from the side wall 22. A pre-filter 29 such as a nonwoven fabric is provided in the return air port 26. The return air portion 12 is divided into an upper portion 51, an intermediate portion 52, and a lower portion 53 in the Y direction. A plurality of fans 40 are disposed in upper portion 51 and lower portion 53. The upper portion 51 houses two fans 41 and 42. The lower portion 53 houses two fans 43 and 44. In the following description, the fans 41, 42, 43, and 44 are collectively referred to as the fan 40.

The fans 41 and 42 are disposed at different positions in the Y direction and the Z direction and are shifted from each other. In the present embodiment, the fan 41 is disposed at a position closer to the Y direction front side and closer to the Z direction front side than the fan 42. Similarly, the fans 43 and 44 are disposed at different positions in the Y direction and the Z direction. In the present embodiment, the fan 43 is disposed on the depth side in the Y direction and on the depth side in the Z direction with respect to the fan 44. That is, the four fans 40 are disposed at different positions from each other when viewed in the Z direction. Hereinafter, "when viewed from the Z direction" means when viewed from the depth side toward the front side in the Z direction.

The fan 40 is configured to be able to suck air inside (in the room) of the sterile treatment room 100 through the prefilter 29. As shown in fig. 3, the fan 40 includes a motor 55, a throttle, and a casing 56 formed in a substantially disk shape when viewed from the Z direction, and is referred to as a centrifugal pump or a volute pump. The motor 55 is exposed to an opening (not shown) formed in the housing 56. The casing 56 of the four fans 40 is provided with air blowing ports 45, 46, 47, 48.

Fig. 4 shows the flow of air in the sterile device 10. In fig. 4, the structure of a part of the sterile device 10 is omitted for easy understanding of showing the flow of air. The motor 55 is rotated to suck air W1 in the sterile treatment room 100 (room air) into the interior of the housing 20 through the prefilter 29. Since the aerosol is substantially removed from the air in the sterile treatment room 100 by passing through the pre-filter 29, the supplied air becomes the quasi-clean air W2. The pseudo clean air W2 is sucked in by the four fans 40, is sucked into the motor 55 through the opening by the rotational drive of the motor 55, is blown out from the throttle, flows through the inside of the casing 56 in the direction indicated by the arrow, and is then blown out from the air blowing ports 45, 46, 47, and 48.

Hollow guide frames 35, 36, 37, and 38 shared by the air blowing ports 45, 46, 47, and 48 are connected to the fans 41, 42, 43, and 44, respectively. The guide frames 35, 38 are larger than the air blowing ports 45, 48 by a predetermined dimension in the Y direction and the Z direction as viewed in the X direction, and the guide frames 35, 38 extend in the X direction. Air ports 31, 34 are formed in the end surfaces of the guide frames 35, 38 on the depth side in the X direction, and the air ports 31, 34 overlap the air blowing ports 45, 48 in the Z direction.

When viewed in the X direction, the guide frames 36 and 37 are larger than the air blowing ports 46 and 47 by a predetermined dimension in the Y direction, and the guide frames 36 and 37 are larger than the air blowing ports 46 and 47 by a predetermined dimension in the Z direction, extend to positions overlapping the guide frames 35 and 38 toward the front side in the Z direction, and extend along the X direction by a length approximately equal to that of the guide frames 35 and 38. In other words, the air blowing ports 46 and 47 are located on the depth side in the Z direction on the front end surfaces in the X direction of the guide frames 36 and 37. On the end surfaces of the guide frames 36 and 37 on the depth side in the X direction, the vents 32 and 33 are located on the front side in the Z direction and at the same positions as the vents 31 and 34 in the Z direction.

The air blowing ports 45, 46, 47, 48 of the fans 41, 42, 43, 44 are located at positions different from each other in the Y direction and different from each other in the Z direction in correspondence with the relative positions of the fans 41, 42, 43, 44. Vents 31, 32, 33, 34 are opened in the portion of the side wall 22 located on the side close to the side wall 21 and connected to the side wall 64.

Vents 31, 32, 33, 34 communicate with vent 68. Quasi-clean air W2 blown out from air blowing ports 45, 46, 47, and 48 is guided to air vent 68 by guide frames 35, 36, 37, and 38, and flows into air supply unit 14 through air vent 68 at mutually the same position in the Z direction while maintaining the relative positional relationship in the Y direction of air blowing ports 45, 46, 47, and 48.

The maximum thickness of the outer dimension of the fan 40, i.e., the smaller the thickness of the fan 40 in the Z direction, is preferably 131mm, for example. The size of the blowing ports 45, 46, 47, 48 in the Z direction and the size of the ventilation ports 31, 32, 33, 34 in the Z direction are at least less than 200mm, and are preferably smaller, for example, 112 mm.

The noise value measured at a predetermined position in the sterile treatment room 100 (indoor) when the fan 40 is operated is 40dB or less. The predetermined position can be appropriately selected, for example, from the center of the bed 110 in a plan view, the position of the bed 110 where the head of the patient is disposed, or the center of the interior space of the sterile treatment room 100 in a plan view. The "operation time" of the fan 40 refers to a normal operation time of the fan 40. For example, when the fan 40 has a low-speed mode and a high-speed mode, the normal operation described above refers to operation in the low-speed mode. The low-speed mode is used daily while the patient spends a hospitalized life in the sterile treatment room 100. The high speed mode is used when a patient, doctor, nurse, visitor, etc. enters the sterile treatment room 100 in order to remove entrained air and particles from the sterile treatment room 100. The type of the fan 40 is not particularly limited as long as it can suck the air in the sterile treatment room 100 while satisfying the above-described noise value condition.

As shown in fig. 1 and the like, a control mechanism (not shown) capable of adjusting the rotation speed, the feed current, and the like of the motor 55 of the fan 40 is housed in the middle layer portion 52. The control mechanism is electrically connected to the controller 92. The middle layer portion 52 in the side wall 23 is provided with the operation panel of the control mechanism described above.

As shown in fig. 2 to 5, the air supply unit 14 includes a box-shaped casing 60 that is thinner in the Z direction than in the X direction and the Y direction, a HEPA filter 70 housed in the casing 60, and airflow rate adjustment plates 201, 202, 203, and 204. The side wall 61 of the housing 60 is adjacent to the side wall 102. A vent hole 68 communicating with the vent holes 31, 32, 33, and 34 is formed in a portion of the side wall (wall surface) 64 of the housing 60 on the side close to the side wall 61, and the vent hole 68 is adjacent to the side wall 22 of the air return portion 12. Quasi-clean air W2 supplied from air return unit 12 is sucked into air supply unit 14 through air vent 68. The side wall 62 of the housing 60 is closed.

An air supply port 66 is formed in a side wall (wall surface) 63 of the housing 60 facing the inner space of the sterile treatment room 100 and the end 112 of the patient bed 110. The air supply port 66 is divided into two areas, a 1 st area on a side closer to the air return portion 12 in the X direction and a 2 nd area distant from the air return portion 12 in the X direction, as viewed from the Z direction. The 1 st region and the 2 nd region are further divided into two regions of an upper region and a lower region, respectively, in the Y direction. That is, the air supply port 66 is divided into four areas 81, 82, 83, 84.

Panels 85, 86, 87, and 88 that are detachable from the air supply port 66 are disposed in the four regions 81, 82, 83, and 84. A large number of holes (not shown) for passing the clean air W3 are formed in the wall surface of the panels 85, 86, 87, 88 on the depth side in the Z direction, and the HEPA filter 70 is provided at a position on the near side (upstream side of the quasi-clean air) in the Z direction of the wall surface on which the holes are formed. The type of the HEPA filter 70 is not particularly limited. The particulate collection efficiency of the HEPA filter 70 is at least 99.97% or more, for example, 99.99%. The particulate collection efficiency of the HEPA filter 70 can be varied according to the cleanliness required in the interior of the sterile treatment room 100.

As shown in fig. 3 and 4, the quasi-clean air W2 flowing into the air supply portion 14 through the air vents 68 at positions different from each other in the Y direction flows into the four regions 81, 82, 83, 84, respectively. Quasi-clean air W2 sent out from fan 41 flows into region 81 through blower port 45 and air vent 31 in the X direction, then flows into the center of region 81 in the Y direction when viewed from the Z direction, and is supplied as clean air W3 in the Z direction (predetermined direction) through HEPA filter 70 and panel 85. Quasi-clean air W2 sent out from fan 42 passes through air blowing port 46 and air vent 32, flows in the X direction toward the center of region 82 when viewed in the Z direction, and is supplied in the Z direction (predetermined direction) as clean air W3 through HEPA filter 70 and panel 86. Quasi-clean air W2 sent out from fan 43 passes through air blowing port 47 and air vent 33, flows in the X direction toward the center of region 83 when viewed in the Z direction, and is supplied as clean air W3 in the Z direction (predetermined direction) through HEPA filter 70 and panel 87. The quasi-clean air W2 sent out from the fan 44 flows into the region 84 through the air blowing port 48 and the air vent 34 in the X direction, then flows into the center of the region 84 in the direction opposite to the Y direction when viewed from the Z direction, and is supplied as clean air W3 in the Z direction (predetermined direction) through the HEPA filter 70 and the panel 88.

Fig. 5 is a side view with panels 85, 86, 87, 88 removed from respective areas 81, 82, 83, 84. In the regions 81, 82, 83, and 84, the airflow rate adjusting plates 201, 202, 203, and 204 are provided at positions on the front side of the HEPA filter 70 in the Z direction. Of the air volume adjusting plates 201, 202, 203, 204, the central portions 205, 206, 207, 208 are recessed more toward the front side in the Z direction than the outer peripheral portions when viewed from the Z direction. A plurality of air volume adjusting ports are formed in the central portions 205, 206, 207, and 208.

The wind volume control ports 212-1, 212-2, 212-3, 212-4, 212-5 are formed in the center portion 206 from the front side (upstream side) toward the depth side (downstream side) in the X direction. Hereinafter, when the description is given of the common contents of the air volume adjusting ports 212-1, 212-2, 212-3, 212-4, and 212-5, these fans will be collectively referred to as the air volume adjusting port 212, and such description will be applied when a plurality of air volume adjusting ports, which will be described later, formed in the center portions 205, 207, and 208 are described.

The air volume adjusting ports 212-1 and 212-5 are each formed of one opening having a rectangular shape that is longer in the Y direction than in the X direction when viewed from the Z direction. The air volume adjusting port 212-2 is formed of two openings having a square shape having substantially the same size in the X direction and the Y direction when viewed from the Z direction, and arranged at an interval in the Y direction. The air volume adjusting port 212-3 is formed of two openings that have a rectangular shape longer in the X direction than in the Y direction when viewed from the Z direction and are arranged at an interval from each other in the Y direction. The air volume adjusting port 212-4 is formed of two openings that have a rectangular shape longer in the Y direction than in the X direction when viewed from the Z direction and are arranged at a distance from each other in the Y direction.

When N is 1 to 5 and the total value of the opening areas of the air volume adjusting ports 212-N as viewed from the Z direction is regarded as "the opening area of the air volume adjusting port 212-N", the opening area of the air volume adjusting port 212-N decreases as it advances from the front side to the depth side in the X direction, that is, from the upstream side to the downstream side of the clean air W2. Thus, since the opening area of the air volume adjusting port 212-N is reduced, the resistance with respect to the pseudo clean air W2 increases as the pseudo clean air W2 travels from the upstream side to the downstream side. The number and shape of the openings constituting the air volume adjustment port 212-N are set as described above in consideration of simulation results such as the air volume when the pseudo clean air W2 is blown out from the air volume adjustment port 212-N.

The air flow rate adjusting ports 213-1, 213-2, 213-3, 213-4, 213-5 are formed in the center portion 207 from the front side (upstream side) toward the depth side (downstream side) in the X direction. The relative arrangement of the air volume adjusting ports 213-1, 213-2, 213-3, 213-4, 213-5 and the shape and number of openings constituting each air volume adjusting port are the same as those of the air volume adjusting ports 212-1, 212-2, 212-3, 212-4, 212-5.

The air flow rate adjusting ports 211-1, 211-2, 211-3 are formed in the center portion 205 from the front side (upstream side) toward the depth side (downstream side) in the Y direction. The air volume adjusting ports 211-1 and 211-3 are each formed of one opening having a rectangular shape longer in the X direction than in the Y direction when viewed from the Z direction. The air volume adjusting port 211-2 is formed of two openings that have a rectangular shape longer in the X direction than in the Y direction when viewed from the Z direction and are arranged at an interval from each other in the X direction.

The opening area of air volume damper 211-N decreases as it advances from the near side to the far side in the Y direction, i.e., from the upstream side to the downstream side of quasi-clean air W2. In this way, since the opening area of the air volume adjusting port 211-N is reduced, the resistance with respect to the pseudo clean air W2 increases as the pseudo clean air W2 advances from the upstream side to the downstream side. The number and shape of the openings constituting the air volume damper 211-N are set as described above in consideration of simulation results such as the air volume of the pseudo clean air W2 blown out from the air volume damper 211-N.

Air flow control ports 214-1, 214-2, and 214-3 are formed in the center portion 208 from the depth side (upstream side) toward the front side (downstream side) in the Y direction. The relative positions of the air volume adjusting ports 214-1, 214-2, and 214-3 are reversed in the Y direction with respect to the relative positions of the air volume adjusting ports 211-1, 211-2, and 211-3. The shape and number of openings constituting the air volume adjusting ports 214-1, 214-2, 214-3 are the same as those of the air volume adjusting ports 211-1, 211-2, 211-3.

In the sterile device 10 of the present embodiment described above, the fan 40 is disposed in the air return unit 12. The air return portion 12 is separated from the air supply portion 14 that supplies clean air W3 in the Z direction and has a large area as viewed from the Z direction, and is adjacent to the air supply portion 14. Thus, the thickness of the gas supply part 14 in the Z direction is reduced by 200mm or less compared to the thickness of a conventional aseptic device, and a thin aseptic device 10 can be realized by a horizontal laminar flow method.

In the sterile device 10 of the present embodiment, the size of the air blowing ports 45, 46, 47, 48 of the fan 40 in the Z direction is 112mm or less, and therefore the quasi-clean air W2 sucked by the fan 40 can be collected by the opening of 112mm or less in the Z direction and flow into the air supply unit 14. This makes it easy to set the thickness of the gas supply unit 14 in the Z direction to 200mm or less. In the sterile device 10 of the present embodiment, the air supply portion 14 has a large area when viewed from the Z direction, and is divided into four regions 81, 82, 83, 84 according to the performance of the fan 40. Even if the four fans 40 are disposed at positions different from each other in the Z direction in the air return unit 12, the pseudo clean air W2 can be guided from the air blowing ports 45, 46, 47, and 48 of the fans 40 to the air vents 31, 32, 33, and 34 by using the guide frames 35, 36, 37, and 38. The size and shape of the air vents 31, 32, 33, 34 are substantially the same as the size and shape of the air blowing ports 45, 46, 47, 48 when viewed in the X direction. This allows quasi-clean air W2 sucked by each of the four fans 40 to flow into the air supply unit 14 from the air vents 31, 32, 33, and 34 through the air blowing ports 45, 46, 47, and 48 having a size of 112mm or less in the Z direction.

That is, if the sizes of the air blowing ports 45, 46, 47, and 48 of the fans 40 in the Z direction are 112mm or less, even when the air supply unit 14 is divided into a plurality of areas and the aseptic device 10 includes the same number of fans 40 as the number of areas of the air supply unit 14, the thickness of the air supply unit 14 in the Z direction can be made 200mm or less by arranging the guide frames in accordance with the positional relationship between the relative arrangement of the plurality of fans 40 and the areas where the fans 40 supply the pseudo clean air W2 and connecting the air blowing ports of the fans 40 and the air vents 68 of the air supply unit 14, thereby realizing the thin aseptic device 10 in a horizontal laminar flow manner.

Furthermore, according to the sterile device 10 of the present embodiment, since the maximum thickness of the fan 40 is 131mm or less, the thickness of the fan 40 and the size of the air blowing ports 45, 46, 47, 48 in the Z direction are set to values close to each other, and the momentum of the pseudo clean air W2 sucked by the fan 40 is not greatly reduced, and the air can be smoothly and efficiently supplied to the air supply unit 14. Further, according to the sterile device 10 of the present embodiment, the fan 40 formed in a substantially disk shape is disposed along the XY plane, and the thickness of the return air unit 12 in the Z direction can be suppressed in addition to the thickness of the supply air unit 14 in the Z direction.

In addition, according to the sterile device 10 of the present embodiment, the four fans 41, 42, 43, and 44 are disposed at different positions from each other when viewed from at least the Z direction. In the present embodiment, the fans 41 and 42 are disposed at positions different from each other in the Y direction and the Z direction, and the fans 43 and 44 are disposed at positions different from each other in the Y direction and the Z direction. As a result, the pseudo clean air W2 is supplied from the four fans 41, 42, 43, and 44 to the air supply unit 14, to the air supply port 66, and to the Z direction along the flow paths and the flow directions different from each other in the Y direction and the Z direction, respectively. Therefore, even if the entire air supply port 66 is made large in area, the air supply port 66 is divided into a plurality of regions when viewed from the Z direction, and the plurality of fans 40 that supply the pseudo clean air W2 to each region are used, the thickness of the air supply portion 14 in the Z direction can be suppressed.

Furthermore, according to the sterile apparatus 10 of the present embodiment, since the noise value measured at a predetermined position in the sterile treatment room 100 when the fan 40 is operated is 40dB or less, noise can be reduced, and the comfort of the patient in the sterile treatment room 100 can be maintained.

Further, according to the sterile device 10 of the present embodiment, the air supply port 66 is divided into four areas 81, 82, 83, 84, and includes the air volume adjusting plates 201, 202, 203, 204 corresponding to the respective areas. The opening areas of air volume adjusting ports 211-N, 212-N, 213-N, and 214-N of air volume adjusting plates 201, 202, 203, and 204 decrease as air travels from the upstream side to the downstream side of quasi-clean air W2. This can rectify the pseudo clean air W2 supplied from each of the four regions 81, 82, 83, and 84, and supply the air from the air supply port 66 in the Z direction. Therefore, the amount of pseudo-clean air can be made uniform in the XY plane, the comfort of the patient can be improved, and variation in the effect of removing particles in the internal space of the sterile treatment room 100 can be suppressed.

While the embodiments of the aseptic device according to the present invention have been described above, the present invention is not limited to the above-described embodiments. The present invention can be modified within the scope of the gist of the present invention recited in the claims of the present invention. The above-described modes and modifications can be combined as appropriate.

In the above-described embodiment, a fan formed in a substantially disk shape is exemplified as an example of the fan 40, but the fan 40 may have an air blowing port having a size of, for example, 112mm or less in the Z direction, which can suck the air W1, and the configuration and shape of the fan 40 are not particularly limited.

In the above-described embodiment, the substantially disk-shaped fan 40 is disposed along the XY plane, but may be disposed along a YZ plane including the Y direction and the Z direction, for example.

In the above-described embodiment, the air return unit 12 is disposed so that the side wall 22 of the casing 20 is adjacent to the side wall 64 of the casing 60 of the air supply unit 14, and may be disposed so that the side wall 24 is adjacent to the side wall 62, for example. That is, as shown in fig. 6, the air returning section 12 may be provided at a position on the left side of the air supply section 14 when viewed from the depth side toward the front side along the Z direction. In this case, the 1 st and 2 nd regions are opposite to the 1 st and 2 nd regions shown in fig. 5 in the X direction. Also, a return air port 26 is formed in the side wall 22.

In the above-described embodiment, the air return unit 12 includes four fans 40, but the number of fans 40 is not particularly limited. The number of fans 40 is changed according to the size of the entire air supply port 66 and the number of divided areas.

In the above-described embodiment, a plurality of air volume adjusting ports are formed in each of the air volume adjusting plates 201, 202, 203, and 204, and for example, one air volume adjusting port may be formed instead of a plurality of air volume adjusting ports. In this case, the opening area of one air volume adjusting port also decreases as the self-cleaning air W2 travels from the upstream side to the downstream side.

Claims (10)

1. An aseptic device, characterized in that,

the aseptic device comprises:

a return air unit having a return air opening formed in a wall surface, a prefilter provided in connection with the return air opening, and a fan configured to be able to suck indoor air from the return air opening through the prefilter; and

an air supply unit having an air vent formed in a wall surface so as to be capable of sucking the quasi-clean air supplied from the air return unit, an air supply port formed in the wall surface, and a HEPA filter provided in connection with the air supply port, the air supply unit being configured to be capable of supplying clean air from the air supply port in a predetermined direction through the HEPA filter,

the thickness of the gas supply part in the predetermined direction is 200mm or less.

2. The sterile device of claim 1,

the size of the air outlet of the fan in the predetermined direction is 112mm or less.

3. The sterile device of claim 2,

the maximum thickness of the fan is less than 131 mm.

4. A sterile device according to any of claims 1 to 3,

the air return portion includes a plurality of the fans,

the plurality of fans are arranged at different positions when viewed from the predetermined direction,

the air supply port is divided into a plurality of areas having the same number as the plurality of fans when viewed from the predetermined direction,

supplying the quasi-clean air from the plurality of fans to each of the plurality of areas of the air supply port, respectively.

5. A sterile device according to any of claims 1 to 3,

the noise value measured at a predetermined position in the room when the fan is operating is 40dB or less.

6. The sterile device of claim 4,

the noise value measured at a predetermined position in the room when the fan is operating is 40dB or less.

7. A sterile device according to any of claims 1 to 3,

the air supply unit includes an air volume adjusting plate provided upstream of the HEPA filter with respect to the quasi-clean air,

an air quantity adjusting port is formed on the air quantity adjusting plate,

the opening area of the air volume adjusting port decreases as going from the upstream side to the downstream side of the quasi-clean air.

8. The sterile device of claim 4,

the air supply unit includes an air volume adjusting plate provided upstream of the HEPA filter with respect to the quasi-clean air,

an air quantity adjusting port is formed on the air quantity adjusting plate,

the opening area of the air volume adjusting port decreases as going from the upstream side to the downstream side of the quasi-clean air.

9. The sterile device of claim 5,

the air supply unit includes an air volume adjusting plate provided upstream of the HEPA filter with respect to the quasi-clean air,

an air quantity adjusting port is formed on the air quantity adjusting plate,

the opening area of the air volume adjusting port decreases as going from the upstream side to the downstream side of the quasi-clean air.

10. The sterile device of claim 6,

the air supply unit includes an air volume adjusting plate provided upstream of the HEPA filter with respect to the quasi-clean air,

an air quantity adjusting port is formed on the air quantity adjusting plate,

the opening area of the air volume adjusting port decreases as going from the upstream side to the downstream side of the quasi-clean air.

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