JPH07213592A - Room sterilization and sterilizer - Google Patents

Abstract

PURPOSE:To provide a safe and labor-saving technical means and equipment for sterilization of a room in a hospital, etc., to prevent antiseptic solution runoff and bad influence. CONSTITUTION:Antiseptic solution is sprayed into a tightly closed room, the room is kept as is for a designated time, after mist state antiseptic solution left in the room is condensed and removed, neutralization solution is sprayed to the left antiseptic solution to neutralize and to remove, and unreacted neutralization solution is removed. The equipment is provided with a antiseptic solution sprayer 12, an antiseptic solution condensing device 6, a neutralization solution sprayer 13, an unreacted neutralization solution condensing device 7 and a timer 16 to activate those devices in order. The antiseptic solution condensing device can be also used as the neutralization solution condensing device. Since the major part of the standing antiseptic solution is condensed and removed and the residual one is neutralized and removed by the neutralization solution, quantity of the neutralization solution and neutralization reaction products are very little. Since no ventilation is necessary, runoff of the antiseptic solution and the neutralization solution is prevented and the work is safe.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of disinfecting a room contaminated in a hospital such as an operating room, an examination room, a treatment room, and a hospital room, and a disinfection device suitable for carrying out the method. .

[0002]

2. Description of the Related Art In a room requiring disinfection in a hospital, such as a patient's room, the MRS is applied to the floor, walls, beds, futons, curtains, etc.
Pathogenic bacteria such as A and HIV are attached. Since these pathogens contribute to nosocomial infections, it is necessary to disinfect and keep the room clean. As a disinfection method, formalin water (formalin diluted 10 times) in a closed hospital room
A general method is to sterilize by spraying an antiseptic solution such as a 0.5% glutaraldehyde aqueous solution. In this method, a disinfectant is sprayed with a spray device so that a certain amount of disinfectant stays in the patient's room for a certain period of time. The disinfecting liquid spraying device is stopped and the neutralizing liquid spraying device is operated to spray the neutralizing liquid into the room to neutralize and remove the mist-like disinfecting liquid remaining in the hospital room.

However, this method has a problem that a neutralization product (for example, tetramethylenehexamine) by the neutralization reaction adversely affects indoor equipment such as an artificial respirator and a fixed volume infusion device installed in a patient's room. Therefore, conventionally, a method of disinfecting a hospital room with a mist-like disinfectant solution, and then a worker wearing a gas mask enters the room where the disinfectant solution is full, and opens windows and doors of the patient room for natural ventilation is adopted. It had been.

[0004]

However, the above method has a problem that the worker must wear a gas mask and enter a room filled with a toxic disinfectant, which is dangerous. Furthermore, there is a problem that the natural ventilation causes the disinfectant solution to flow out into the adjacent room or the corridor to deteriorate the environment in the hospital.

An object of the present invention is to solve the above-mentioned problems, to prevent the disinfection solution from flowing out from the room, to prevent the indoor equipment from being adversely affected, and to provide a safe and labor-free disinfection method. The purpose is to provide a disinfection device for use in carrying out the method.

[0006]

According to the method of disinfecting a room according to the present invention, the disinfectant solution is sprayed in a closed room and left for a predetermined time to condense most of the mist-like disinfectant solution remaining in the room. It removes and neutralizes and removes the neutralization liquid by spraying the neutralization liquid on the remaining mist-like disinfectant liquid, and condensing and removing the unreacted atomized neutralization liquid.
As the disinfecting solution, an aqueous solution in which formalin, Osvan (trademark) or Deco 51 (trademark) is diluted can be used.

The indoor disinfecting apparatus according to the present invention comprises a disinfecting solution spraying device 12 for spraying the disinfecting solution into the room, a disinfecting solution condensing device 6 for condensing and removing the mist-like disinfecting solution remaining in the room, and a residual fog. Neutralizing liquid spraying device 13 for spraying a neutralizing liquid that reacts with a disinfectant liquid, a neutralizing liquid condensing device 7 for condensing and removing unreacted atomized neutralizing liquid, and the above four devices 12, 6 , 13 and 7 are sequentially operated in the order described, and a timer device 16 is provided. The disinfecting liquid condensing device 6 and the neutralizing liquid condensing device 7 can be combined into one condensing device.

[0008]

In the disinfection method of the present invention, most of the mist-like disinfectant solution that remains in the room is condensed and removed, and the remaining mist-like disinfectant solution is neutralized and removed by the neutralizing solution. The amount of the product (for example, tetramethylenehexamine) by the reaction is extremely small, and the adverse effect of the neutralization product on the indoor equipment can be minimized. Furthermore, since the residual disinfectant solution is neutralized and removed by the neutralizing solution, the amount of the neutralizing solution used can be greatly reduced. If a condenser is provided separately, the collected disinfectant solution or neutralizing solution can be concentrated and reused. Further, since the disinfection method of the present invention does not require ventilation work, it is possible to prevent the atomized disinfectant solution from flowing out to the adjacent room or the corridor. Furthermore, the worker is safe because he / she enters and leaves the room without the disinfecting liquid or the neutralizing liquid.

The disinfecting apparatus 1 of the present invention is suitable for carrying out the above method, and the disinfecting liquid spraying apparatus 1 is provided by the timer device 16.
2. Since the disinfecting liquid condensing device 6, the neutralizing liquid spraying device 13, and the neutralizing liquid condensing device 7 are sequentially operated, the room can be disinfected automatically. If one condensing device serves as both the disinfecting liquid condensing device 6 and the neutralizing liquid condensing device 7, the disinfecting device can be manufactured at low cost.

[0010]

EXAMPLE FIG. 2 shows a disinfection device of the present invention. The disinfection device 1 is mounted on a carriage 3 which is movable by casters 2. The handle 4 provided on one side of the carriage 3 is operated to convey the disinfection device 1 to the contaminated room. The disinfection device 1 has two condensing devices juxtaposed in the lower stage and two spraying devices juxtaposed in the upper stage.

The front side 6 of the two condensers is
A formalin water condensing device that condenses and removes mist-like formalin water, and a device 7 on the back side is an ammonia water condensing device that condenses and removes mist-like ammonia water. Both condensing devices 6 and 7 are provided with a condenser 9 between a suction port and a blow-out port 8 (not shown), and the fog-like formalin water or ammonia water sucked from the suction port by the fan 10 is condensed into the condenser 9. It is condensed and removed at. Droplets of formalin water or ammonia water condensed by the condenser are dropped and stored in a waste liquid container 11 that is removably provided below the condenser 9.

Of the two spraying devices, the one on the front side 12
Is a formalin water spraying device that sprays formalin water into the room, and the inner side 13 is an ammonia water spraying device that sprays ammonia water into the room. Both spraying devices 1
Reference numerals 2 and 13 each include a storage container 14 for containing formalin water or ammonia water and an ultrasonic oscillator for atomizing the stored formalin water or ammonia water into the hospital room. The formalin water or the ammonia water atomized by the ultrasonic oscillator is discharged from the discharge port 15 into the room.

A timer device 16 is attached to the front side wall of the formalin water condensing device 6, and the timer device 16 includes the formalin water spraying device 12, the formalin water condensing device 6, the ammonia water spraying device 13, and the ammonia. The water condenser 7 is sequentially operated for a predetermined time.

Next, a disinfection method using the disinfection device will be described with reference to FIGS. 3 and 1. Bring the disinfection device 1 into the patient room 17 that is contaminated with pathogens such as MRSA and HIV.
Close 8 Turn on the power of the disinfection device 1 and the timer device 1
After activating 6, the operator exits the room, closes the door 19 and seals the patient room 17. Based on the command from the timer device 16, the formalin water spray device 12 is activated to spray misty formalin water into the hospital room. The amount of formalin water sprayed is such that formaldehyde is 6 g / m ³ . In this state, it is left for 10 hours to kill pathogenic bacteria such as MRSA and HIV. After 10 hours, the spraying device 12 is stopped based on a command from the timer device and the formalin water condensing device 6 is operated for 5 hours to condense and remove most of the formalin water remaining in the room together with water vapor in the air. Next, based on the designation of the timer device, the ammonia water spraying device 13 is operated for 4 hours to react the formalin water remaining in the room with the ammonia water to generate tetramethylenehexamine and completely remove the formalin water. To do. Furthermore, based on the designation of the timer device, the ammonia water condensing device 7 is operated for 5 hours,
The mist-like ammonia water remaining in the room is condensed and removed. Since the indoor disinfection is completed as described above, the patient room is opened and the disinfecting apparatus 1 is carried outside. The formalin water and the ammonia water stored in the waste liquid containers 14, 14 of the two condensers can be transferred to a concentrator to increase their concentrations and can be reused.

Although the formalin water condensing device 6 and the ammonia water condensing device 7 are separately provided in the above embodiment, the ammonia water condensing device 7 is replaced by the formalin water condensing device 6.
Can also serve as When it is also used, it is necessary to use a gold-plated one, because tetramethylenehexamine produced by the neutralization reaction adheres to the capacitor. The timer device is operated in the order of the formalin water spray device 12, the formalin water condensing device 6, the ammonia water spray device, and the formalin water condensing device 6. Formalin water or ammonia water and tetramethylenehexamine are mixed in the waste liquid container of the formalin water condenser 6, and the recovered liquid cannot be reused.

[0016]

Since the disinfection method of the present invention does not require ventilation during the disinfection work, it is possible to disinfect a contaminated room in a hospital without causing the disinfectant solution to flow out of the room. In addition, since most of the disinfectant solution is condensed and removed and the remaining disinfectant solution is neutralized and removed, the generation of neutralized products (eg, tetramethylenehexamine) can be minimized. The amount of the neutralization product attached to the equipment installed in the device can be reduced to prevent the occurrence of a failure, and the amount of the neutralization liquid used can be greatly reduced.
In addition, if a condenser is separately provided, the recovered disinfectant solution or neutralizing solution can be reused, which is an economic effect. Further, since the disinfection device of the present invention sequentially operates each device by the timer device, it is safe that an operator does not have to enter a room filled with harmful disinfectant, and automatically disinfects the room indoors. The effect is that you can.

[Brief description of drawings]

[Figure 1] Process diagram of the disinfection method

FIG. 2 is a perspective view of the disinfection device.

FIG. 3 is an explanatory view of a usage state of the disinfection device.

[Explanation of symbols]

 1 Disinfection device 6 Formalin water condensing device 7 Ammonia water condensing device 12 Formalin water spraying device 13 Ammonia water spraying device 16 Timer device

Claims (3)

[Claims] 1. A sprayed disinfectant solution is left in a closed room for a predetermined period of time, and most of the atomized disinfectant solution remaining in the room after condensation is removed by condensation to form the remaining atomized disinfectant solution. An indoor disinfection method in which the neutralizing solution is sprayed to neutralize and remove, and the unreacted atomized neutralizing solution is condensed and removed. 2. A disinfectant spraying device for spraying a disinfectant in a room.
(12), a disinfectant liquid condensing device (6) that condenses and removes the mist-like disinfectant liquid that remains in the room, and a neutralizing liquid spray device (13) that sprays a neutralizing liquid that reacts with the mist-like disinfectant liquid. , A neutralizing liquid condensing device (7) for condensing and removing the atomized neutralizing liquid, and the above-mentioned four devices (12, 6, 1)
An indoor disinfection device having a timer device (16) for sequentially activating 3, 7) in the order described. 3. A disinfectant spraying device for spraying a disinfectant in a room
(12), a neutralizing liquid spraying device (13) for spraying a neutralizing liquid that reacts with the mist-like disinfecting liquid, and a condensing device (6) for condensing and removing the mist-like disinfecting liquid or neutralizing liquid staying indoors. ) And the above three devices (12,
Indoor disinfection, which has a timer device (16) that sequentially activates the disinfecting liquid spraying device (12), the condensing device (6), the neutralizing liquid spraying device (13), and the condensing device (6) in this order. apparatus.