CN113662782B

CN113662782B - Clean shed

Info

Publication number: CN113662782B
Application number: CN202110520838.3A
Authority: CN
Inventors: 雉鼻一郎
Original assignee: Nippon Medical and Chemical Instruments Co Ltd
Current assignee: Nippon Medical and Chemical Instruments Co Ltd
Priority date: 2020-05-15
Filing date: 2021-05-13
Publication date: 2022-05-03
Anticipated expiration: 2041-05-13
Also published as: CN113662782A; JP2021179291A; JP6960694B1

Abstract

The invention provides a clean shed which can simply switch between negative pressure and positive pressure in the clean shed. The clean shed (100) of the present invention comprises: a fan filter unit (20) having an outlet (21) on one of a pair of side surfaces facing each other and an inlet (22) on the other; and a clean shed body (10) which is arranged adjacent to the outlet side or the inlet side of the fan filter unit (20). The clean shed main body (10) is provided with: a curtain (13) covering 3 directions except the direction in which the fan filter unit (20) is present; a curtain hanging guide rail (11) for hanging the curtain; and a top wall (16) sealed above. The clean shed (100) is composed of: the curtain rail (11) can move between the outlet side and the inlet side of the fan filter unit (20), so that the inside of the clean shed body can be switched to negative pressure or positive pressure.

Description

Clean shed

Technical Field

The present invention relates to a clean shed which covers a part or the whole of a bed, for example, and prevents infection of a person inside or outside by applying a positive pressure or a negative pressure to the inside, and more particularly, to a clean shed which can switch the inside of the shed between a negative pressure and a positive pressure depending on the application.

Background

Conventionally, a ventilation shed has been widely used, which is: a ventilation shed in which a part of the head side of a patient on a hospital bed is surrounded in a mosquito net shape and the inside thereof is made to be negative pressure or positive pressure for the purpose of preventing infection of the patient after surgery or the purpose of preventing infection of a patient with an infection symptom to medical staff or other patients (see patent documents 1 to 3).

For example, patent document 1 proposes an aseptic booth configured as follows: the air intake unit supplies clean air into the shed, the air exhaust unit exhausts the cleaned air out of the shed, and the amount of exhaust from the air exhaust unit is set to always exceed the amount of air supply from the air intake unit, so that the interior of the shed is in a negative pressure.

Further, patent document 2 proposes a ventilation shed (cleaning shed system) in which: set up the disinfect box that disposes the bactericidal lamp, this bactericidal lamp jets out the sterilization line to inside, and the air after being disinfected by the disinfect box is carried in to the canopy for the inside malleation that is in of canopy (or called isolation room, intermediate).

However, in the case of patent document 1 or patent document 2, if only one of the negative pressure and the positive pressure is provided, there is a problem that the cost, the storage space, and the like are increased.

Therefore, patent document 3 proposes a cleaning booth that includes: by being able to reverse the direction of the air flow of the fan unit, the interior of the booth can be changed to both negative and positive pressures.

Further, patent document 4 proposes a ventilation shed in which: the wall-mounted fan unit is provided with an air inlet opening and an air outlet opening on the surface and the back surface, and the ceiling can be changed into negative pressure and positive pressure by reversing the front surface and the back surface.

Patent document

Patent document 1: japanese laid-open patent publication No. H07-241318

Patent document 2: japanese laid-open patent publication No. 10-151160

Patent document 3: registration utility model No. 3108536

Patent document 4: japanese patent laid-open publication No. 2010-269121

However, when the direction of the air flow of the fan unit is reversed as in the clean shed of patent document 3, there is a possibility that bacteria and viruses adhering to the inside of the fan unit are discharged from the exhaust opening.

On the other hand, in the ventilation booth of patent document 4, there are generated: the problem of placing a large burden on the medical staff in order to replace a heavy filter unit.

The present invention has been made in view of the above problems, and an object of the present invention is to provide: the negative pressure and positive pressure in the clean shed can be switched without reversing the air flow direction of the fan unit and lifting the fan unit for disassembly.

Disclosure of Invention

The present invention made to solve the above problems relates to a clean shed, comprising: a fan filter unit having an outlet on one of a pair of side surfaces facing each other and an inlet on the other; and a cleaning booth main body provided adjacent to an outlet side or an inlet side of the fan filter unit, the cleaning booth main body having: a curtain covering 3 directions except for a direction in which the fan filter unit exists; the curtain hanging guide rail is used for hanging the curtain; and a ceiling wall for blocking the upper part, wherein the clean shed comprises: the curtain rail can move between the outlet side and the inlet side of the fan filter unit, so that the inside of the clean shed main body can be switched to negative pressure or positive pressure.

Since the clean booth of the present invention can move the curtain rail to both the inlet side and the outlet side of the fan filter unit, the booth can be set to a negative pressure by moving the curtain rail to the inlet side and to the outlet side, and the booth can be set to a positive pressure by moving the curtain rail to the outlet side.

The curtain rail preferably slidably moves between the discharge and intake sides of the fan filter unit. By doing so, the curtain rail can be easily moved on the inlet port side and the outlet port side.

The curtain rail is preferably designed as: the hanging curtain and the top wall can be detached from the fan filtering unit, and the hanging curtain and the top wall are hung on the fan filtering unit for storage. By doing so, space can be saved during storage.

As described above, according to the clean shed of the present invention, when the negative pressure/positive pressure in the clean shed is changed, the direction of the air flow in the fan filter unit is not reversed, and therefore, bacteria or viruses adhering to the inside of the fan filter unit do not flow back. In addition, since the fan filter unit does not have to be lifted and detached, the burden on the medical staff can be reduced.

Drawings

Fig. 1 is a side view showing a state in which a clean booth according to an embodiment of the present invention is used in a state in which the inside is a positive pressure.

Fig. 2 is a side view showing a state in which the clean booth according to the embodiment of the present invention is used with the inside thereof being a negative pressure.

Fig. 3 (a) is a plan view of the fan filter unit shown in fig. 1, (b) is a front view of the fan filter unit shown in fig. 1, (c) is a right side view of the fan filter unit shown in fig. 1, and (d) is a rear view of the fan filter unit shown in fig. 1.

Fig. 4 is a plan view showing a state in which the curtain rail shown in fig. 1 slides.

Fig. 5 (a) is a main portion side view showing the periphery of the curtain rail, and (b) is a main portion rear view showing the periphery of the curtain rail.

Fig. 6 (a) is an enlarged plan view of a main portion of the carriage periphery (the portion indicated by the symbol X in fig. 5 (b)) of fig. 5, and (b) is an enlarged rear view of a main portion of the carriage periphery (the portion indicated by the symbol X in fig. 5 (b)) of fig. 5.

Fig. 7 (a) is an enlarged side view of a main portion of the periphery of the stopper metal (indicated by the symbol Y in fig. 5 (a)) of fig. 5 (a), and (b) is an enlarged side view of a main portion of the curtain rail engaged with the slide metal.

Description of the figures

100 … clean shed; 10 … clean shed body; 11 … curtain rail; 13 … hanging curtain; 16 … top wall; 20 … fan filter unit; 21 … discharge port; 22 … into the mouth.

Detailed Description

Embodiments of the present invention are described in detail below, with reference to the accompanying drawings as appropriate. However, the present invention is not limited to the following embodiments.

Fig. 1 shows a clean booth 100 according to an embodiment of the present invention. The clean shed 100 is used for: when the periphery of the head of a bed B on which a patient A who has an infection symptom or needs a sterile state lies is isolated from the periphery, the bed B comprises: a clean booth main body 10 for covering the head of a patient, and a fan filter unit 20 for supplying negative or positive pressure to the clean booth main body 10.

As shown in fig. 1 and 2, the clean booth main body 10 mainly includes: a curtain rail 11;

transparent resin curtains

13, 13 hung in three directions on the curtain rail 11; and a ceiling wall 16 for blocking the upper side of the clean booth body.

The curtain rail 11 is a rectangular shape formed by bending a metal pipe made of aluminum alloy, stainless steel, or the like into a rounded corner, and the plurality of curtain hooks 12, … are suspended so as to be slidable along the longitudinal sides 11a to the lateral sides 11 b: can slide between the longitudinal sides 11a and the transverse sides 11 b.

The curtain rail 11 is configured to slide along a pair of sliding frames 14, wherein the pair of

sliding frames

14, 14 are provided at both ends in the width direction (the up-down direction in fig. 4) of the upper surface 26 of the fan filter unit 20.

The carriage 14 is provided with, inside an outer portion 14a formed of a metal unequal-sided slide path: the resin contact portion 14b that contacts the curtain rail 11 is screwed to the upper surface 26 of the fan filter unit 20 with the wide side being the lower side. The carriage 14 guides the sliding of the curtain rail 11, and restrains the curtain rail 11 so as not to deviate from the horizontal direction and the vertical direction.

A pair of

slide stoppers

15, 15 are provided at both ends in the thickness direction (the left-right direction in fig. 4) of the upper surface of the fan filter unit 20. As shown in fig. 7, the slide stopper 15 is composed of a vertical portion 15a, an upper plate portion 15b extending from an upper edge of the vertical portion 15a toward the side of the anti-fan filter unit, and a base portion 15c extending from a lower edge of the vertical portion 15a toward the side opposite to the upper plate portion 15b and screwed to the upper surface 26 by a knob bolt 15 d. The vertical portion 15a is for restricting the horizontal movement of the lateral side 11b of the curtain rail 11 to one side, and the upper plate portion 15b is for restricting the upward movement of the lateral side 11 b.

As shown in fig. 7 (b), in a state where the curtain 13 is detached, the lateral side 11b of the curtain rail 11 is locked to: the curtain rail 11 can be hung vertically by the inner side of the vertical portion 15a of the slide stopper 15 and the upper surface of the base portion 15 c.

The curtain 13 is formed by cutting a sheet of soft transparent resin into a rectangular shape, and is hung from the curtain hook 12 through a hole 13a formed in the upper edge thereof. The

curtains

13, 13 on both sides of the bed B among the 3 curtains 13 are set: is longer in the up-down direction than the curtain 13 across the bed B.

The ceiling wall 16 is formed by cutting a soft transparent resin sheet into a rectangular shape, and is attached to the curtain rail 11 so as to close the entire surface of the opening 11c of the curtain rail 11. The peripheral edge portion 16a of the ceiling wall 16 hangs down toward the outside of the curtain rail 11.

As shown in fig. 3, the fan filter unit 20 is formed in a rectangular parallelepiped box shape, and has a discharge port 21 (see fig. 3 b) provided on one surface of side surfaces facing each other in the thickness direction (the vertical direction in fig. 3 a), and an inlet port 22 provided on the other surface. The discharge port 21 and the intake port 22 are each formed by a plurality of circular through

holes

21a and 22a provided in the resin panel 23.

An exhaust HEPA filter 241 is provided inside the exhaust port 21, and an intake HEPA filter 242 is provided inside the intake port 22. The inside of the fan filter unit 20 is appropriately divided, and is configured to: air is drawn in from the inlet port 22 and discharged from the outlet port by the fan 25.

In the case where the clean booth 100 is used for preventing infection of a patient after an operation, as shown in fig. 1, the curtain rail 11 is slid to the discharge port 21 side of the fan filter unit 20, the clean booth main body 10 is assembled at the discharge port 21 side, and: the bed B having the fan filter unit 20 side as the head side. By doing so, the inside of the clean booth body 10 can be made positive pressure, and invasion of bacteria, viruses, and the like from the outside into the clean booth body 10 can be suppressed.

In the case where the clean booth 100 is used for preventing a patient who has an infection symptom from infecting medical staff or the like, as shown in fig. 2, the curtain rail 11 is slid to the inlet 22 side of the fan filter unit 20, and the clean booth main body 10 is assembled to the inlet 22 side, and: the bed B having the fan filter unit 20 side as the head side. By doing so, the inside of the clean booth body 10 can be made negative pressure, and the problem of bacteria, viruses, and the like leaking from the inside of the clean booth body 10 to the outside can be suppressed.

Further, since the clean air is sent from the back side of the fan filter unit, the ambient environment can be cleaned.

As described above, the present invention is not limited to the above-described embodiments, and the moving method is not limited to the slide type as long as the curtain rail is configured to be movable between the discharge port side and the intake port side, and for example, the curtain rail may be moved between the discharge port side and the intake port side by rotating the curtain rail using the lateral axis of the curtain rail as the rotation axis.

In addition, the curtain rail may be a detachable rail and moved. The clean shed main body can be manufactured to cover not only a part of the bed but also the whole bed, and can also cover a plurality of beds. The curtain rail may also be free of hanging from the fan filter unit.

Claims

1. A clean shed is characterized in that a shed body is provided,

the clean shed is provided with: a fan filter unit having an outlet on one of a pair of side surfaces facing each other and an inlet on the other; and a cleaning booth main body disposed adjacent to an exhaust port side or an inlet port side of the fan filter unit,

the clean canopy main part has: a curtain covering 3 directions except for a direction in which the fan filter unit exists; the curtain hanging guide rail is used for hanging the curtain; and a top wall for sealing the upper part,

the curtain rail comprises: the inside of the clean shed main body can be switched to negative pressure or positive pressure by moving between the outlet side and the inlet side of the fan filtering unit,

the fan filter unit has a thickness direction defined by a direction in which the pair of side surfaces face each other and a width direction defined by a horizontal direction perpendicular to the thickness direction,

the curtain rail is formed as follows: a rectangular frame shape including longitudinal sides extending in the thickness direction and lateral sides extending in the width direction, wherein the curtain rail is configured to: sliding the longitudinal edges along a pair of sliding frames fixed to both ends in the width direction of the upper surface of the fan filter unit to move between the discharge port side and the intake port side of the fan filter unit,

the sliding frame is composed of an inequilateral sliding path, and is fixed to the upper surface of the fan filter unit with the opening side of the cross section as the inner side in the width direction and the wide side as the lower side.

2. A clean shed is characterized in that the shed is provided with a plurality of air inlets,

the curtain rail is composed of: the inside of the clean shed main body can be switched to negative pressure or positive pressure by moving between the outlet side and the inlet side of the fan filtering unit,

the fan filter unit has a thickness direction as a direction in which the pair of side surfaces face each other, and a width direction as a horizontal direction perpendicular to the thickness direction,

the curtain rail is formed as follows: a rectangular frame shape including longitudinal sides extending in the thickness direction and lateral sides extending in the width direction, wherein the curtain rail is configured to: slidably between the discharge and intake sides of the fan filter unit,

a pair of slide stoppers are provided at both ends of an upper surface of the fan filter unit in the thickness direction,

the slide stopper has: a vertical portion with a plate shape vertically provided so as to extend in the width direction; and an upper plate portion extending from an upper edge of the vertical portion toward the counter-fan filter unit side.

3. The clean shed as in claim 2,

the slide stopper has a base portion having a band plate shape, which extends from a lower edge of the vertical portion toward a direction opposite to the upper plate portion and is fixed to an upper surface of the fan filter unit, and is provided: the vertical portion protrudes from an upper surface of the fan filter unit toward an outer side in a thickness direction of the base portion,

the curtain rail is composed of: the curtain and the top wall can be detached from the fan filter unit, and the curtain and the top wall can be suspended from the base for storage.

4. A clean shed is characterized in that a shed body is provided,

the curtain rail is formed as follows: a rectangular frame shape composed of longitudinal sides extending in the thickness direction and lateral sides extending in the width direction, and the curtain rail hangs the curtain by means of a curtain hanger,

the curtain hanging hook comprises: can slide between the longitudinal edges and the transverse edges.

5. A clean shed is characterized in that a shed body is provided,

the curtain rail is formed as follows: and a curtain rail that is formed in a rectangular frame shape having a longitudinal side extending in the thickness direction and a lateral side extending in the width direction, and that is movable between a discharge port side and an intake port side of the fan filter unit by being rotated using the lateral side as a rotation axis.