JPH07241318A - Sterilized booth - Google Patents

Abstract

PURPOSE:To prevent scattering of an infectious germ outside of a medical treatment room by almost airtightly surrounding the periphery of a bed in the medical treatment room, constituting a booth partitioned so as to be capable of going in and out, arranging an air supply unit in the booth and an air exhaust unit outside of the booth, and setting an exhaust air quantity so as to exceed a supply air quantity. CONSTITUTION:A sterilized booth 2 to surround the periphery of a bed 1 in a medical treatment room A is composed of partition walls 3 arranged at proper intervals around the bed 1, the ceiling 4 installed in upper parts of the partition walls 3 and a doorway use curtain 5 arranged on the lengthwise direction side of the bed l by notching a part of the partition walls 3. An air supply unit 6 body is arranged in this sterilized booth 2, and an inlet port 7 is installed in the partiton wall 3, and a blowoff port is arranged on the head part side of the bed l, and air in the medical treatment room A is sucked in from the inlet port 7, and air filtered and cleaned in the air supply unit 6 is supplied from the blowoff port. An air exhaust unit 9 body is arranged outside of the booth 2, and air in the booth 2 is exhausted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the treatment of patients with immunocompromised diseases such as MRSA in an ICU (intensive care unit; hereinafter simply referred to as a treatment unit) of a hospital which can accommodate and treat a plurality of seriously ill patients. The present invention relates to a sterile booth for preventing the infectious bacteria generated from an infectious disease patient from scattering into the treatment room and maintaining the treatment environment of the easily infected patient in a sterile environment.

[0002]

2. Description of the Related Art Conventionally, in a treatment room accommodating a plurality of immunocompromised patients, a positive pressure is applied to the interior of the treatment room in order to maintain a sterile environment to prevent invasion of contaminated air from the outside and a curtain for each bed. It was a structure that was partitioned by etc.

[0003]

By the way, in the above conventional treatment room, when an infectious disease patient occurs in a patient housed in the treatment room, a simple curtain or the like prevents infection of other easily infectious disease patients. I couldn't. This is because the pressure inside the curtain for isolating and accommodating patients is also equal to the pressure in the treatment room, and it is inevitable that infected bacteria flow out together with the air from the gaps in the curtain and easily disperse into the treatment room. It was

Therefore, for the purpose of preventing the infection of other easily infected patients in the treatment room, the inside of the curtain is sealed as much as possible, an air supply unit is installed for each curtain to send clean air, and the inside of the curtain is blown. The pressure in the treatment room is set to a positive pressure so that the air in the treatment room does not flow into the curtain. Although this can prevent the infectious bacteria from entering the curtain to some extent, the air containing the infectious bacteria from the curtain of an infectious disease patient flows out into the treatment room, and therefore the treatment room is still contaminated with the infectious disease. Under the condition, the contaminated air may be released outside the treatment room, and the problem of infection of a third party other than the immunocompromised patient in the treatment room remains unsolved.

In order to solve this, each bed is placed in a completely isolated private room, and each room is equipped with equipment similar to an intensive care unit, but for that purpose, expensive equipment costs and monitoring are required. Because of this, the cost of manpower and the like is increased, and the feasibility at present is poor. In view of these points, it was difficult to treat a plurality of patients including an infectious disease patient in the current intensive care unit without fear of infection.

The present invention has been made in view of these points, and an object thereof is to accommodate and treat a plurality of patients in one treatment room without fear of infection.

[0007]

SUMMARY OF THE INVENTION According to the present invention, a booth is constructed in which each bed in a treatment room is surrounded in a substantially airtight manner, and a partition is arranged so that the bed can come in and out, and clean air is supplied into the booth. Install an air unit and an exhaust unit that exhausts the purified air outside the booth, and set the exhaust amount from the exhaust unit so that it always exceeds the amount of air supplied from the air supply unit. It is to make negative pressure.

Further, the air outlet of the air supply unit is installed on the head side of the bed in the booth, facing the legs, and the suction port of the exhaust unit to the outside of the booth is installed on the opposite leg side of the bed. It is to form a laminar flow of clean air on top, and its action is as follows.

[0009]

[Function] Clean air is supplied from an air supply unit having a built-in HEPA filter into a booth that surrounds each bed in the treatment room in a substantially airtight manner, and the air in the booth is sucked from the suction port of the exhaust unit to be installed. After cleaning with the HEPA filter, the air is exhausted outside the booth. The amount of exhaust air from the exhaust unit at this time is set so as to always exceed the amount of air supplied from the air supply unit, whereby the inside of the booth can be maintained at a negative pressure more than in the treatment room at all times. As a result, the air in the booth does not flow out of the booth except through the exhaust unit, and it is possible to prevent the infectious bacteria from scattering in the treatment room and outside the treatment room.

Further, the air outlet of the air supply unit is installed on the head side of the bed toward the leg side, and is directed to the suction port of the exhaust unit installed on the leg side of the bed facing the air outlet. The laminar flow can be formed by constantly supplying the clean air from the blower outlet from the head side to the leg side of the bed at a low wind speed and constantly. As a result, it is possible to maintain the surroundings of the patient on the bed, particularly the respiratory area, in a sterile environment, and it is possible to prevent infection of immunocompromised patients very reliably and effectively.

[0011]

According to the present invention, in an intensive care unit capable of accommodating a plurality of patients, the risk of infection from an infectious disease patient to another immunocompromised patient is eliminated, and the treatment of a plurality of patients is simultaneously performed in the same room. It can be carried out. In addition, it is possible to effectively prevent scattering of infectious bacteria outside the treatment room. further,
It has become possible to treat patients in the booth in an effective sterile environment.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to FIGS. The aseptic booth 2 surrounding the bed 1 in the treatment room A includes a partition wall 3 arranged at an appropriate interval around the bed 1, a ceiling 4 attached to the upper part of the partition wall 3, and a bed 1. And a curtain 5 for the entrance and exit provided by cutting out a part of the partition wall 3 arranged on the longitudinal direction side. In this embodiment, the curtains 5 are provided symmetrically on both sides so that the booth 2 can enter and exit from either the left or the right. Thus, the aseptic booth 2 partitioned from the treatment room A is constructed.

The partition wall 3, the ceiling 4 and the curtain 5 are made of a synthetic resin plate such as transparent acrylic or vinyl chloride for lighting in the booth 2. The partition wall 3, the ceiling 4 and the curtain 5 are joined together. With a structure with few gaps,
It is designed to reduce air leakage as much as possible.

Next, the main body of the air supply unit 6 is installed in the aseptic booth 2, the suction port 7 is attached to the partition wall 3, and the air outlet 8 is provided.
Is placed on the head side of the bed 1 and the treatment room A is introduced from the suction port 7.
The air is sucked in, and filtered in the air supply unit 6 to be cleaned and supplied from the air outlet 8.
The air supply unit 6 has a fan installed therein, and a prefilter facing the suction port 7 side and a sizing plate and a HEPA filter facing the blowout port 8 side, respectively. (Not shown)

Further, the main body of the exhaust unit 9 is installed outside the booth 2, and the suction port 10 is arranged on the leg side of the bed 1 so as to face the outlet port 8 of the air supply unit 6, and the exhaust port 1
1 is opened in the treatment room A, and the air in the booth 2 is filtered in the exhaust unit 9 to be cleaned and exhausted. Like the air supply unit 6, the exhaust unit 9 is also provided with a fan inside, and a prefilter facing the suction port 10 side and a sizing plate and HEPA filter facing the outlet 12 side, respectively. ing. (Not shown)

Further, the amount of air discharged from the exhaust unit 9 to the outside of the booth 2 is larger than the amount of air supplied from the air supply unit 6, so that the inside of the booth 2 is always under negative pressure. Therefore, when the exhaust unit 9 is stopped, the air supply unit 6 is not activated, and when the supply air volume is weakly operated such as at night, control is performed such that the exhaust air volume is changed in proportion to the air supply volume to continuously supply the air. The inside of the booth 2 is constantly maintained at a negative pressure so that the volume does not exceed the displacement.

Thus, in the aseptic booth 2, clean air is supplied from the air outlet 8 of the air supply unit 6 at a low wind speed as shown by the arrow to form a laminar flow and form the laminar flow from the head to the legs of the patient on the bed 1. The clean air is directed toward the part to maintain the breathing area of the patient in a sterile environment.

[0018]

[Experimental Example] In the apparatus of the above-mentioned embodiment, for example, the supply amount of clean air from the air supply unit 6 is 11 m ³ / min,
The cleanliness of the breathing area on the bed 1 was class 100 when the blowing air speed was 0.22 m / s, the exhaust volume from the exhaust unit 9 was 15 m ³ / min, and the discharge air speed was 0.4 m / s. . At this time, the pressure difference between the inside and outside of the booth 2 is −1 to −
It was 1.5 mmAq. Also, the noise level during operation could be kept below 40 dB on the A scale.

[0019]

[Another embodiment] Partition wall 3 and ceiling 4 which constitute the aseptic booth 2.
The material of the curtain 5, etc., and the method of joining these materials to each other does not matter. For example, in the above-described embodiment, the partition wall 3, the ceiling 4,
The curtain 5 is made of a transparent synthetic resin plate such as acrylic or vinyl chloride for lighting in the booth 2. However, not only the curtain 5 is used entirely or partially, but also the ceiling 5 and partition walls in the booth 2. 3 may be made of an opaque material by attaching a lighting device to it, and plywood such as plywood or gypsum board may be used as long as it is strong enough to form the partition walls 3 and the ceiling 4. It may be a material. Further, the curtain 5 may be replaced with a door.

Further, an opening may be provided in the partition wall 3 so that a patient can be treated from the outside of the aseptic booth 2 and gloves for both hands, a head port and the like may be additionally provided.

Regarding the installation of the air supply unit 6 and the exhaust unit 9, as shown in FIG. 3, the position of the air outlet 8 is arranged on the partition wall 3 on the head side of the bed 1, and then the main body of the air supply unit 6 is installed. The exhaust unit 9 main body may be installed inside the booth 2 after being installed outside the booth 2 or after the exhaust port 11 is installed outside the partition wall 3. Further, the types, sizes, capacities, etc. of the air supply unit 6 and the exhaust unit 9 may be appropriately changed in design, but each unit is preferably a low pressure loss type and a low noise type in terms of application.

Further, the structure of the aseptic booth of the present invention, the manufacturing method, the use, etc. are not required.

[Brief description of drawings]

[0023]

FIG. 1 is a schematic diagram of the present embodiment.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a schematic view of another embodiment.

[0024]

[Explanation of symbols]

 A Treatment room 1 Bed 2 Aseptic booth 3 Bulkhead 4 Ceiling 5 Curtain 6 Air supply unit 7 Suction port 8 Outlet port 9 Exhaust unit 10 Suction port 11 Exhaust port

Claims (2)

[Claims] 1. A booth 2 in which a bed 1 in a treatment room A is surrounded in a substantially airtight manner and partitioned so as to be accessible,
An air supply unit 6 for supplying clean air into the booth 2 and an exhaust unit 9 for exhausting the purified air are installed outside the booth 2, and the amount of exhaust from the exhaust unit 9 is supplied from the air supply unit 6. An aseptic booth that is set to always exceed the air volume. 2. The air outlet 8 of the air supply unit 6 is installed on the head side of the bed 1 in the booth 2 toward the leg side, and the exhaust unit 9 to the outside of the booth 2 is installed on the opposite leg side. Suction port 1
The aseptic booth according to claim 1, wherein 0 is installed.