JP2015116410A - Sterilization unit and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stop operation of a sterilization process with a condition that air pressure in a sterilization gas decomposition unit is equal to or more than a predetermined value.SOLUTION: A sterilization unit performs sterilization of an object using sterilization gas, and comprises: a path of sterilization gas used in the sterilization process; a sterilization gas decomposition unit disposed in the path and decomposing the sterilization gas; measurement means for measuring air pressure in the sterilization gas decomposition unit; and stop means for stopping operation of the sterilization process with a condition that the air pressure measured by the measurement means is equal to or more than a predetermined value.

Description

  The present invention relates to a sterilization apparatus and a sterilization method. In particular, the present invention relates to a technique for stopping the operation of the sterilization process on condition that the air pressure in the filter device or the sterilization gas decomposition device is equal to or higher than a predetermined value.

After using a medical instrument such as a syringe or a surgical tool, pathogenic bacteria may adhere to the medical instrument. Therefore, it is necessary to perform sterilization before the next use.
Therefore, a sterilization apparatus that sterilizes an object that requires sterilization such as a medical instrument is generally known.
As a method for sterilizing a medical instrument used in medical treatment in this way, a sterilization apparatus that sterilizes using hydrogen peroxide gas is known.

In this sterilization apparatus, generally, hydrogen peroxide gas is generated by evaporating an aqueous hydrogen peroxide solution, and the generated hydrogen peroxide gas is put into a sterilization chamber and brought into contact with an object to be inspected. The object can be sterilized.
Conventionally, a sterilization apparatus provided with a catalyst for decomposing the hydrogen peroxide gas to decompose the hydrogen peroxide gas introduced into the sterilization chamber is also known.
For example, Patent Document 1 proposes a sterilization apparatus and a sterilization method for sterilizing an object using hydrogen peroxide as a sterilizing agent.
JP-T-08-505787

  However, in the conventional sterilization apparatus, it is considered that dust or dust adheres to the catalyst that decomposes the hydrogen peroxide gas, and the decomposition ability of the hydrogen peroxide gas decreases.

  Therefore, the filter and the catalyst are provided in the sterilizing agent decomposing apparatus (sterilizing gas decomposing apparatus), and the filter is provided in a path before the hydrogen peroxide gas reaches the catalyst, thereby removing dust and dust. It is conceivable that the hydrogen peroxide gas from which dust has been removed is brought into contact with the catalyst to make it difficult for the decomposition ability of the hydrogen peroxide gas to decrease. Here, a device provided with a filter is also referred to as a filter device.

  However, dust and dust accumulate on the filter, making it difficult for gas to pass through the filter, and some of the gas (hydrogen peroxide gas, water gas) flowing to the filter liquefies and adheres to the filter. Thus, it may be difficult for the gas to pass through the filter.

  Therefore, if the sterilization process is continued even though it is difficult for the gas to pass through the filter, the pressure inside the sterilizing agent decomposing apparatus rises, and some of the gas is contained in the sterilizing agent decomposing apparatus. There is also a possibility of leakage.

In addition, in a sterilizing agent decomposing apparatus that is not provided with a filter and is provided with a catalyst that decomposes hydrogen peroxide gas, dust, liquid, liquid, etc., adhere to the catalyst, and the gas passes through the catalyst. It may be difficult.
In this way, when the gas is difficult to pass through the catalyst,
Then, the atmospheric pressure in the sterilizing agent decomposing apparatus increases, and there is a possibility that a part of gas leaks from the sterilizing agent decomposing apparatus.

That is, if the sterilization process is continued despite clogging in the sterilizing agent decomposing apparatus, the atmospheric pressure in the sterilizing agent decomposing apparatus rises, and some gases are in the sterilizing agent decomposing apparatus. There is a possibility of leakage.
An object of the present invention is to provide a mechanism for stopping the operation of the sterilization process on condition that the air pressure in the filter device or the sterilization gas decomposition device is equal to or higher than a predetermined value.

  The present invention is a sterilization apparatus for sterilizing an object using a sterilization gas, a sterilization gas path used in a sterilization process, a sterilization gas decomposition apparatus provided in the path for decomposing the sterilization gas, Measuring means for measuring the atmospheric pressure in the sterilization gas decomposing apparatus; and stopping means for stopping the operation of the sterilization process on condition that the atmospheric pressure measured by the measuring means is equal to or higher than a predetermined atmospheric pressure. It is characterized by.

  The present invention also includes a path for sterilization gas used in the sterilization process, and a sterilization gas decomposition apparatus provided in the path for decomposing the sterilization gas, and sterilizes an object using the sterilization gas. A control method in a sterilization apparatus, comprising: a measurement step for measuring an atmospheric pressure in the sterilization gas decomposition apparatus; and an operation of the sterilization process on condition that the atmospheric pressure measured in the measurement step is equal to or higher than a predetermined atmospheric pressure. And a stop step for stopping.

  Further, the present invention is a sterilization apparatus for sterilizing an object using a sterilization gas, and includes a sterilization gas path used in a sterilization process, and a filter provided in the path for cleaning the sterilization gas. A filter device, measuring means for measuring the atmospheric pressure in the filter device, and stopping means for stopping the operation of the sterilization process on condition that the atmospheric pressure measured by the measuring means is equal to or higher than a predetermined atmospheric pressure. It is characterized by providing.

  The present invention also includes a path for sterilization gas used in the sterilization process, and a filter device provided in the path and provided with a filter for cleaning the sterilization gas. A control method in a sterilization apparatus for sterilization, comprising: a measurement step for measuring an atmospheric pressure in the filter device; and an operation of the sterilization process on condition that the atmospheric pressure measured in the measurement step is equal to or higher than a predetermined atmospheric pressure. And a stop step for stopping.

  According to the present invention, the operation of the sterilization process can be stopped on condition that the atmospheric pressure in the sterilization gas decomposition apparatus is equal to or higher than a predetermined value.

It is a front view of the external appearance of the sterilizer based on this invention. It is a figure which shows an example of the structure of the hardware of the sterilizer which concerns on this invention. It is a figure which shows an example of the screen displayed on the display part 102 of the sterilizer 100. FIG. It is a figure which shows an example of each process of the sterilization process by the sterilizer which concerns on this invention. It is a figure which shows an example of the detailed process of the sterilization process shown to S111 of FIG. It is a figure which shows an example of the detailed process of the pre-sterilization process shown to S501 of FIG. It is a figure which shows an example of the detailed process of the sterilization process shown to S502 of FIG. It is a figure which shows an example of the detailed process of the ventilation process shown to S503 of FIG. It is a figure which shows an example of the detailed process of the sterilization discharge | emission process shown to S114 of FIG. It is a figure which shows an example of the cartridge attachment request | requirement screen 1001 displayed on the display part 102 of the sterilizer 100. FIG. It is the figure (side view) which looked at the cartridge 205 of the sterilizing agent used for the sterilizer based on this invention from the side. It is sectional drawing of the cross section 1 of a cartridge when the tip of the extraction needle | hook 203-A is inserted to the bottom of a cartridge or the bottom vicinity in order to attract | suck the sterilant in a cartridge. It is a figure which shows an example of the external view of the sterilizing agent decomposition | disassembly apparatus 222 with a HEPA filter which concerns on this invention. It is a figure which shows an example of sectional drawing of the sterilizing agent decomposition | disassembly apparatus 222 with a HEPA filter which concerns on this invention. It is a figure which shows an example of the internal state of the sterilizer decomposition apparatus 222 with a HEPA filter. It is a flowchart which shows an example of each process of the sterilization process by the sterilization apparatus which concerns on this invention. 6 is a diagram showing an example of an exchange instruction screen 1701 displayed on the display unit 102. FIG. It is a figure which shows an example of the ventilation start instruction | indication reception screen 1801 displayed on the display part. It is a figure which shows an example of the sterilization start instruction | indication reception screen 1901 displayed on the display part 102. FIG.

First, the external appearance of the sterilizer according to the present invention will be described with reference to FIG.
FIG. 1 is a front view of an external appearance of a sterilizer according to the present invention as viewed from the front.

  Reference numeral 100 denotes a sterilization apparatus according to the present invention, reference numeral 101 denotes a cartridge mounting door, reference numeral 102 denotes a display unit, reference numeral 103 denotes a printing unit 103, and reference numeral 104 denotes a sterilization chamber door.

The cartridge mounting door 101 is a door for mounting a cartridge which is a container filled with a sterilizing agent (for example, a hydrogen peroxide solution liquid).
When the cartridge mounting door 101 is opened, there is a cartridge mounting location, and the user can mount the cartridge there.
The display unit 102 is a display screen of a touch panel such as a liquid crystal display.

  The printing unit 103 is a printer that prints the history of sterilization processing and the results of processing on printing paper, and appropriately prints the history of sterilization processing and results of processing on printing paper.

  The sterilization chamber door 104 is a door for placing an object to be sterilized in a sterilization chamber in order to sterilize an object to be sterilized (object to be sterilized) such as a medical instrument. When the door 104 of the sterilization chamber is opened, there is a sterilization chamber, and the object to be sterilized can be put in the sterilization chamber by closing the door 104 of the sterilization chamber. As described above, an object to be sterilized (also simply referred to as an object) is stored in the sterilization chamber.

The sterilization chamber is a casing having a predetermined capacity. The pressure in the sterilization chamber can be maintained from atmospheric pressure to vacuum pressure. Further, the temperature in the sterilization chamber is maintained within a predetermined range during the sterilization process.
<Description of FIG. 2>

  Next, an example of the hardware configuration of the sterilizer according to the present invention will be described with reference to FIG.

  FIG. 2 is a diagram illustrating an example of a hardware configuration of the sterilization apparatus 100 according to the present invention.

  The sterilization apparatus 100 according to the present invention includes an arithmetic processing unit (such as an MPU) 201, a display unit 102, a printing unit 103, a lock operation control unit 202, an extraction needle 203-A, and an extraction needle operation control unit 203. , Cartridge mounting door 101, liquid sensor 204, cartridge 205, RF-ID reader / writer 206, liquid feed rotary pump 207, concentrating furnace 208, air feed pressurizing pump 209, and intake HEPA filter 210, valve (V1) 211, valve (V3) 212, valve (V4) 213, metering tube 214, valve (V2) 215, vaporizer 216, valve (V5) 217, valve ( V9) 227, valve (V7) 226, sterilization chamber (also referred to as vacuum chamber) 219, pneumatic vacuum pump 220, sterilizing agent decomposing apparatus 222 with HEPA filter, and liquid feeding rotor And Ponpu 223, and a exhaust evaporation furnace 224..

  The sterilizer 100 is a device that takes out the sterilant from the cartridge 205 containing the sterilant and sterilizes the object.

  The arithmetic processing unit (MPU or the like) 201 performs arithmetic processing and controls each hardware constituting the sterilization apparatus 100 as described later.

  The arithmetic processing unit (MPU or the like) 201 is an application example of the control unit of the present invention.

  The display unit 102, the printing unit 103, and the cartridge mounting door 101 have already been described with reference to FIG.

  The lock operation control unit 202 is a unit that performs the operation of locking and unlocking the cartridge mounting door 101. By locking the cartridge mounting door 101, the cartridge mounting door 101 is prevented from being opened, and the cartridge mounting door 101 is opened. By unlocking the mounting door 101, the cartridge mounting door 101 can be opened.

  The cartridge 205 is a sealed container filled with a sterilizing agent (hydrogen peroxide or a hydrogen peroxide solution liquid). An RF-ID storage medium is provided below the cartridge 205. The storage medium includes a serial number as information for identifying the cartridge, the date of manufacture of the cartridge, and the first cartridge. The date and time (first use date and time) used in the sterilizer and the remaining amount of the sterilant filled in the cartridge are stored.

  This RF-ID is a storage medium that stores data related to the disposal of the sterilant in the cartridge 205 (serial number, date of manufacture, date of first use, all remaining amount of sterilant, or any data). is there.

  The extraction needle operation control unit 203 operates (drives) to move the extraction needle 203-A in order to stab the extraction needle 203-A (injection needle) for aspirating the sterilizing agent in the cartridge from the top of the cartridge. It is a part to do.

  This extraction needle operation control unit 203 is an application example of the moving means of the present invention.

  That is, when the extraction needle operation control unit 203 (moving means) extracts the sterilizing agent in the cartridge by the extraction tube, the position of the extraction tube with respect to the cartridge and the next sterilization processing with the same cartridge are performed. When the extraction tube is waiting for extraction of the sterilizing agent from the cartridge, the extraction tube is moved so that the position of the extraction tube with respect to the cartridge is different.

  That is, when the extraction needle 203-A (injection needle) for aspirating the sterilizing agent in the cartridge is inserted from the upper part of the cartridge, the extraction needle 203-A (injection needle) is directed toward the cartridge and the upper part of the cartridge is used. By operating to lower, the extraction needle 203-A (injection needle) can be inserted from the top of the cartridge. When the extraction needle 203-A (injection needle) is removed from the cartridge, the extraction needle 203-A (injection needle) is operated by raising the extraction needle 203-A (injection needle) above the cartridge. Can be removed from the cartridge.

  The extraction needle 203-A is a straw (thin cylinder) for sucking out the sterilant from the cartridge and is an application example of the extraction tube of the present invention for extracting the sterilant from the cartridge.

  The extraction needle 203-A is made of a metal such as stainless steel in order to prevent corrosion due to a sterilizing agent that is a chemical solution containing hydrogen peroxide, for example.

  The liquid sensor 204 passes through a pipe (conduit) in which the liquid sterilizing agent in the cartridge 205 is connected (connected) to the liquid feed rotary pump 207 and the liquid feed rotary pump 223 from the extraction needle 203-A (injection needle). It is a device that detects whether or not Specifically, it is possible to detect whether a sterilant passes through the tube from a spectrum obtained by irradiating the tube with infrared rays.

  The RF-ID reader / writer 206 is a device that can read the serial number, the date of manufacture, the date of first use, and the remaining amount of sterilant from the RF-ID provided on the lower side of the cartridge 205. Further, the device can write the date and time of initial use and the remaining amount of sterilizing agent from the RF-ID reader / writer 206 to the RF-ID provided on the lower side of the cartridge 205. The RF-ID reader / writer 206 is installed at the lower part of the cartridge mounting location behind the cartridge mounting door 101, and reads the RF-ID provided on the lower side of the cartridge 205. Data such as the date and time of first use and the remaining amount of sterilant can be written in the RF-ID.

  The liquid feed rotary pump 207 is connected (connected) to the concentrating furnace 208 via a conduit, and is also connected to the liquid sensor 204 via a conduit. The liquid feed rotary pump 207 is a device that sucks the liquid sterilant in the cartridge 205 with a pump and sends the sterilant through a conduit to the concentration furnace 208. Further, the liquid feeding rotary pump 207 can suck a predetermined amount of the sterilizing agent from the cartridge 205 in cooperation with the liquid sensor 204.

  The concentrating furnace 208 is connected to a liquid feeding rotary pump 207, an air feeding and pressurizing pump 209, a measuring pipe 214, and a sterilizing agent decomposing apparatus 222 with a HEPA filter through conduits. As will be described later with reference to FIG. 10, the concentrating furnace 208 heats the sterilizing agent fed from the liquid feed rotary pump 207 through the conduit using a heater, and evaporates (vaporizes) moisture contained in the sterilizing agent to sterilize. Concentrate the agent. Further, the vaporized water is pushed out to the conduit connected to the sterilizing agent decomposing apparatus 222 with a HEPA filter by the air sent from the pneumatic pressurizing pump 209 through the conduit, and is exhausted from the concentration furnace 208. Further, a valve (1) 211 is provided between the conduit between the measuring pipe 214 and the concentrating furnace 208.

  The air pressure pressurizing pump 209 is electrically connected to the concentrating furnace 208, the intake HEPA filter 210, and a conduit. The air feed pressurization pump 209 is a device that conducts the outside air (air) of the sterilizer 100 through the intake HEPA filter 210 through a conduit with the intake HEPA filter 210 and sends it to the concentrating furnace 208.

  The intake HEPA filter 210 is electrically connected to each other by a pneumatic pressure pump 209, a sterilization chamber 219, a vaporization furnace 216, and a conduit. The inhalation HEPA filter 210 filters dust, dust, germs, and the like in the outside air (air) outside the sterilization apparatus 100 with a HEPA (High Efficiency Particulate Air Filter) filter to clean the air. Then, the cleaned air is sent to the concentrating furnace 208 through a conduit by an air feeding and pressure pump 209. Further, the purified air is conducted through a conduit with the vaporizing furnace 216 and sent to the vaporizing furnace 216, or conducted through a conduit with the sterilization chamber 219 and sent into the sterilization chamber 219. That is, the intake HEPA filter 210 is electrically connected to the outside air (air) outside the sterilizer 100. Therefore, a conduit between the air feed pressurization pump 209 and the intake HEPA filter 210, a conduit between the sterilization chamber 219 and the intake HEPA filter 210, and between the vaporizer 216 and the intake HEPA filter 210 are provided. The conduit is in communication with outside air (air) via the intake HEPA filter 210.

  A valve (V9) 227 is provided in the conduit between the intake HEPA filter 210 and the vaporizing furnace 216. A valve (V 7) 226 is provided in the conduit between the intake HEPA filter 210 and the sterilization chamber 219.

  The valve (V1) 211 is a valve provided in a conduit between the concentrating furnace 208 and the metering pipe 214, and enables conduction by a conduit between the concentrating furnace 208 and the metering pipe 214 by opening the valve. The valve is closed so that the conduit between the concentrating furnace 208 and the metering pipe 214 cannot be connected by closing the valve.

  The valve (V3) 212 is a valve provided in a conduit between the metering tube 214 and the sterilization chamber 219. By opening the valve, the conduit between the metering tube 214 and the sterilization chamber 219 can be connected. The valve is closed so that the connection between the metering tube 214 and the sterilization chamber 219 is disabled. Further, this valve is provided in the vicinity of the measuring pipe 214, and is provided at a position closer to the measuring pipe 214 than at least a valve (V4) described later.

  The valve (V4) 213 is a valve provided in a conduit between the metering tube 214 and the sterilization chamber 219. By opening the valve, the conduit between the metering tube 214 and the sterilization chamber 219 can be connected. The valve is closed so that the connection between the metering tube 214 and the sterilization chamber 219 is disabled. This valve is provided near the sterilization chamber 219, and is provided at a position closer to the sterilization chamber 219 than at least a valve (V3) described later.

  In this embodiment, the valve (V4) 212 and the valve (V3) 213 are opened or closed to enable or disable the conduit between the measuring tube and the sterilization chamber. Whether to open or close one of the valve (V4) 213 and valve (V3) 213 enables or disables the conduit between the measuring tube and the sterilization chamber. Also good.

  That is, only one of the valve (V4) 213 and the valve (V3) 213 is provided, and by opening or closing one of the valves, the conduit between the measuring tube and the sterilization chamber is connected. You can make it possible or impossible.

  The measuring pipe 214 is connected by a conduit between the concentrating furnace 208, the vaporizing furnace 216, and the sterilization chamber 219.

When the valve (V1) 211 is opened, the sterilizing agent flows into the measuring pipe 214 from the concentrating furnace 208, and when the valve (V3) 212 and the valve (V4) 213 are opened, the metering pipe 214 is unnecessary from the cartridge 205. This is a device that removes unnecessary air that has flowed into the concentration tube 208 from the HEPA filter 210 for intake air and / or from the intake HEPA filter 210 and into the measurement tube 214 from the concentration furnace 208. Details of the measuring tube 214 will be described later with reference to FIG.

  The valve (V2) 215 is a valve provided in a conduit between the metering pipe 214 and the vaporizing furnace 216. By opening the valve, the conduit between the metering pipe 214 and the vaporizing furnace 216 can be connected. And the valve is closed to disable conduction by a conduit between the metering pipe 214 and the vaporizing furnace 216.

  The vaporizing furnace 216 is electrically connected by conduits between the measuring pipe 214, the intake HEPA filter 210, and the sterilization chamber 219. The vaporizing furnace 216 is an application example of the vaporizing chamber of the present invention.

The vaporizing furnace 216 is a device that vaporizes the sterilant by being depressurized by the pneumatic vacuum pump 220.

  The valve (V5) 217 is a valve provided in a conduit between the vaporizing furnace 216 and the sterilization chamber 219. By opening the valve, conduction by the conduit between the vaporizing furnace 216 and the sterilization chamber 219 is possible. And the valve is closed to disable conduction by a conduit between the vaporizing furnace 216 and the sterilization chamber 219.

  The valve (V9) 227 is a valve provided in a conduit between the vaporizer 216 and the intake HEPA filter 210, and is opened by the conduit between the vaporizer 216 and the intake HEPA filter 210. This is a valve that enables conduction and closes the valve to disable conduction by a conduit between the vaporizing furnace 216 and the intake HEPA filter 210. That is, the valve (V9) 227 is a valve that can open and close the conduction between the vaporizing furnace 216 and the outside air (atmosphere).

  The valve (V7) 226 is a valve provided in a conduit between the sterilization chamber 219 and the intake HEPA filter 210. By opening the valve, the valve (V7) 226 is formed by a conduit between the sterilization chamber 219 and the intake HEPA filter 210. It is a valve that enables conduction and closes the valve to disable conduction by a conduit between the sterilization chamber 219 and the intake HEPA filter 210. That is, the valve (V7) 226 is a valve that can open and close the connection between the sterilization chamber 219 and the outside air (atmosphere).

  The sterilization chamber (also referred to as a vacuum chamber) 219 is a casing having a predetermined capacity for sterilizing an object to be sterilized such as a medical instrument as described with reference to FIG. The pressure in the sterilization chamber can be maintained from atmospheric pressure to vacuum pressure. Further, the temperature in the sterilization chamber is maintained within a predetermined range during the sterilization process. Further, a pressure sensor is provided in the sterilization chamber 219, and the pressure (atmospheric pressure) in the sterilization chamber 219 can be measured by the pressure sensor. The sterilization apparatus 100 determines whether the pressure (atmospheric pressure) in the sterilization chamber 219 or the like is a predetermined atmospheric pressure using the atmospheric pressure in the sterilization chamber 219 measured by the pressure sensor.

  The air feed vacuum pump 220 is provided in the sterilization chamber 219, the vaporizer 216, the metering tube 214, the conduit between the metering tube 214 and the vaporizer 216, the conduit between the vaporizer 216 and the sterilization chamber 219, The gas in the space in the conduit between the measuring tube 214 and the sterilization chamber 219 is sucked, and the pressure in each space is reduced to a vacuum state (a state filled with a gas having a pressure lower than atmospheric pressure). Device.

  The pneumatic vacuum pump 220 is connected to the sterilization chamber 219 by a conduit, and is connected to the sterilizer decomposition apparatus 222 with a HEPA filter by a conduit.

  The sterilizer decomposition apparatus 222 with a HEPA filter is connected to the pneumatic vacuum pump 220 by a conduit. Further, the sterilizing agent decomposing apparatus 222 with a HEPA filter is connected to the exhaust evaporation furnace 224 by a conduit. Moreover, the sterilizing agent decomposing apparatus 222 with the HEPA filter is connected to the sterilizing agent decomposing apparatus 222 by a conduit. Further, the sterilizing agent decomposing apparatus 222 with the HEPA filter is connected to the concentration furnace 208 by a conduit.

  The sterilizing agent decomposing apparatus 222 with a HEPA filter is configured to remove the gas sucked from the inside of the sterilization chamber 219 or the like by the pneumatic vacuum pump 220 and the dust in the gas sent from the conduit between the pneumatic vacuum pump 220 and the like. Dust, germs, etc. are filtered with a High Efficiency Particulate Air Filter (HEPA) filter to clean the aspirated gas. Then, the cleaned gas decomposes the molecules of the sterilant contained in the gas by the catalyst in the sterilizing agent decomposing apparatus 222 with the HEPA filter, and releases the decomposed molecules out of the sterilizing apparatus 100.

  Moreover, the sterilant decomposition apparatus 222 with a HEPA filter cleans the gas exhausted from the concentration furnace 208 through a conduit between the concentration furnace 208 and the sterilant decomposition apparatus 222 with a HEPA filter. This gas is water vaporized by heating the sterilizing agent in the concentration furnace 208, but contains a small amount of sterilizing agent. Then, the sterilizing agent molecules contained in the gas are decomposed by the catalyst in the sterilizing agent decomposing apparatus 222 with the HEPA filter, and the decomposed molecules are released out of the sterilizing apparatus 100.

  The sterilizing agent decomposing apparatus 222 with a HEPA filter is an application example of a disposal unit that discards the sterilizing agent contained in a cartridge attached to the sterilizing apparatus 100.

  Further, the sterilizing agent decomposing apparatus 222 with the HEPA filter receives the vaporized sterilizing agent sent from the exhaust evaporating furnace 224 through a conduit between the exhaust evaporating furnace 224 and the sterilizing agent decomposing apparatus 222 with the HEPA filter. Clean. Then, the cleaned sterilant (gas) is decomposed by the catalyst in the sterilizer decomposition apparatus 222 with the HEPA filter, and the molecules of the sterilant contained in the gas are decomposed to the outside of the sterilizer 100. discharge.

  The HEPA filter of the sterilant decomposer 222 with the HEPA filter cleans the gas sent through the conduit, thereby making it difficult for dust and dirt to accumulate in the catalyst in the sterilizer decomposer 222 with the HEPA filter. The product life of the sterilizing agent decomposing apparatus 222 with a filter can be extended.

  The sterilizing agent decomposition apparatus 222 with a HEPA filter is an apparatus that decomposes the sterilizing agent. For example, when the sterilizing agent is hydrogen peroxide or a hydrogen peroxide solution, the vaporized hydrogen peroxide is converted into manganese dioxide. It is an apparatus that can be used as a catalyst and decomposed into water and oxygen.

The sterilizing agent decomposing apparatus 222 with a HEPA filter is an application example of a sterilizing gas decomposing apparatus for decomposing sterilizing gas provided in a sterilizing gas path used in the sterilization process. It is an application example of the filter apparatus provided with the filter to clean.
The liquid feed rotary pump 223 is electrically connected to the exhaust evaporation furnace 224 via a conduit, and is electrically connected to the liquid sensor 204 via a conduit.

  The liquid feed rotary pump 223 sucks all the liquid sterilizing agent in the cartridge 205 by the pump, and sends all the sterilizing agent sent through the conduit between the liquid sensor 204 and the liquid feed rotary pump 223 to the liquid feed. This is a device for sending to the exhaust evaporation furnace 224 through a conduit between the rotary pump 223 and the exhaust evaporation furnace 224.

  The exhaust evaporation furnace 224 is electrically connected to the liquid feed rotary pump 223 by a conduit, and is also electrically connected to a sterilizing agent decomposition apparatus 222 with a HEPA filter by a conduit.

The exhaust evaporation furnace 224 heats all the liquid sterilizing agents in the cartridge 205 sent through a conduit between the liquid feed rotary pump 223 and the exhaust evaporation furnace 224 by a heater provided in the exhaust evaporation furnace 224. Vaporize all of the sterilant. Then, the vaporized sterilizing agent is sent to the sterilizing agent decomposing apparatus 222 with a HEPA filter.
<Description of FIG. 4>
Next, an example of each step of the sterilization process by the sterilizer according to the present invention will be described with reference to FIG.

Each step (process) shown in FIG. 4 is performed by controlling the operation of each device (each hardware) in the sterilizer by the arithmetic processing unit 201 of the sterilizer 100.
FIG. 4 is a diagram showing an example of each step of sterilization processing by the sterilization apparatus according to the present invention.

  When the sterilizer 100 is turned on, first, the RF-ID reader / writer 206 reads data from the RF-ID (storage medium) provided on the lower side of the cartridge 205 (step S101).

  In step S101, the data read from the RF-ID (storage medium) includes a serial number as information for identifying the cartridge, the date of manufacture of the cartridge, and the date and time when the cartridge was first used in the sterilizer. (First use date and time) and the remaining amount of sterilant filled in the cartridge. That is, an RF-ID (storage medium) provided in the cartridge 205 stores in advance a serial number, date of manufacture, date of first use, and remaining amount of sterilant.

  Next, when it is determined in step S101 that data has been read from the RF-ID (step S102: YES), the sterilizer 100 determines that a cartridge is installed at the cartridge mounting location in the sterilizer 100. Then, the cartridge mounting door 101 is locked (step S103).

  Then, the sterilizer 100 determines whether or not there is a predetermined amount of sterilizing agent for one sterilization in the cartridge. Specifically, it is determined whether or not the remaining amount of the sterilizing agent acquired from the RF-ID is larger than a predetermined amount for one sterilization. That is, when it is determined that the remaining amount of the sterilizing agent is larger than the predetermined amount for one sterilization, there is a predetermined amount of the sterilizing agent for one sterilization in the cartridge (a sufficient sterilization process can be performed). (Step S104: YES), the process of step S105 is performed. On the other hand, if it is determined that the remaining amount of the sterilizing agent is less than a predetermined amount (for example, 8 ml) for one sterilization, there is no predetermined amount of the sterilizing agent for one sterilization in the cartridge (sufficient sterilization). It is determined that the process cannot be executed (step S104: NO), and the process of step S112 is performed.

  In step S105, the sterilizer 100 determines whether a predetermined period (for example, 13 months) has elapsed from the date of manufacture of the cartridge acquired from the RF-ID.

  If it is determined that a predetermined period has elapsed since the date of manufacture (step S105: YES), it is determined that sufficient sterilization processing cannot be performed, and the process of step S112 is performed. On the other hand, when it is determined that the predetermined period has not elapsed since the date of manufacture (step S105: NO), it is determined that sufficient sterilization processing can be performed, and the process of step S106 is performed.

  In step S106, the sterilizer 100 determines whether a predetermined period (for example, two weeks) has elapsed from the first use date and time acquired from the RF-ID.

  If it is determined that a predetermined period (for example, two weeks) has elapsed from the first use date and time acquired from the RF-ID (step S106: YES), it is determined that sufficient sterilization processing cannot be performed. Then, the process of step S112 is performed. On the other hand, when it is determined that a predetermined period (for example, two weeks) has not elapsed (step S106: NO), it is determined that sufficient sterilization processing can be performed, and the process of step S107 is performed.

The sterilizer 100 displays a sterilization start screen (301 in FIG. 3) on the display unit 102 in step S107.
FIG. 3 is a diagram illustrating an example of a screen displayed on the display unit 102 of the sterilization apparatus 100.

  On the sterilization start screen 301, a “sterilization start button” is displayed. The “sterilization start button” 302 in the sterilization start screen 301 displayed in step S107 can be pressed (activated) by the user.

  Then, when the “sterilization start button” 302 is pressed by the user (step S108: YES), the sterilization apparatus 100 displays a sterilization mode selection screen (303 in FIG. 3) on the display unit 102.

  The sterilization mode selection screen 303 displays a “mode for concentrating and sterilizing sterilizing agents” button 304 and a “mode for sterilizing without concentrating sterilizing agents” button 305.

  The sterilizer 100 accepts selection of either the “mode for sterilizing and sterilizing the sterilizing agent” button 304 or the “mode for sterilizing without concentrating the sterilizing agent” button 305 from the user (step S110). The sterilization process (step S111) according to the mode of the selected button is performed. Details of the sterilization process (step S111) will be described later with reference to FIG.

  Thus, it becomes possible to switch and use the sterilization processing mode with one sterilization apparatus in accordance with a user instruction. That is, when the “concentrate sterilant and sterilize” button 304 is pressed by the user, the sterilant is concentrated and sterilized, and the “mode sterilize without concentrating sterilant” button 305 is displayed. If pressed, sterilization is performed without concentrating the sterilant.

  Then, when the sterilization process (step S111) ends, the sterilization apparatus 100 returns the process to step S101.

  The sterilizer 100 displays a sterilization start screen (301 in FIG. 3) on the display unit 102 in step S112. However, the “sterilization start button” 302 in the sterilization start screen (301 in FIG. 3) displayed in step S112 is displayed so as not to be pressed by the user (the “sterilization start button” 302 is not active). . Therefore, it is possible to prevent the user from receiving an instruction to start the sterilization process.

  Then, the sterilizer 100 determines from the serial number acquired from the RF-ID in step S101 whether or not the cartridge installed at the cartridge mounting location has already been subjected to the sterilizing agent discharge processing ( Step S113). Specifically, the memory (storage unit) in the sterilization apparatus 100 stores a serial number for identifying a cartridge that has already been subjected to the sterilizing agent discharge process, and the serial number acquired from the RF-ID in step S101 is stored in the memory (storage unit). By determining whether or not the serial number stored in the memory (storage unit) matches, the cartridge currently attached to the sterilization apparatus 100 is a cartridge that has already been subjected to the sterilizing agent discharge process. It is determined whether or not.

  If it is determined that the cartridge currently attached to the sterilization apparatus 100 has already been subjected to the sterilizing agent discharge process (step S113: YES), the process of step S115 is performed. On the other hand, when it is determined that the cartridge has not been subjected to the sterilizing agent discharge process (step S113: NO), the entire remaining amount of the liquid sterilizing agent remaining in the cartridge is sucked and all the sterilizing agents are removed. A sterilizing agent discharge process (step S114) that is decomposed and released to the outside of the sterilizer 100 is performed, and then the process of step S115 is performed. Details of the sterilant discharge process in step S114 will be described later with reference to FIG.

When the process of step S114 is performed, the serial number read in step S101 is stored in the memory (storage unit) in the sterilization apparatus 100 as the serial number for identifying the cartridge that has already been subjected to the sterilizing agent discharge process.
In step 115, the sterilizer 100 unlocks the cartridge mounting door 101.

  If it is determined in step S102 that data could not be read from the RF-ID in step S101 (step S102: NO), the sterilizer 100 has a cartridge installed at the cartridge mounting location in the sterilizer 100. It is determined that there is no cartridge, and the cartridge attachment request screen 1001 shown in FIG. 10 is displayed (step S116).

FIG. 10 is a diagram illustrating an example of a cartridge attachment request screen 1001 displayed on the display unit 102 of the sterilization apparatus 100.
An “OK” button 1002 is displayed on the cartridge attachment request screen 1001.

  Then, the sterilizer 100 determines whether or not the “OK” button 1002 on the cartridge attachment request screen 1001 has been pressed by the user (step S117). If the “OK” button 1002 is pressed (YES), it is for cartridge attachment. The door 101 is unlocked (step S118), and the process returns to step S101. On the other hand, when the “OK” button 1002 is not pressed (NO), the cartridge attachment request screen 1001 is continuously displayed.

  The unlocking and locking process of the cartridge mounting door 101 is performed by an operation by the lock operation control unit 202.

<Description of FIG. 5>
Next, an example of detailed processing of the sterilization processing shown in S111 of FIG. 4 will be described using FIG.
FIG. 5 is a diagram showing an example of detailed processing of the sterilization processing shown in S111 of FIG.

  Each process (process) shown in FIG. 5 is performed by controlling the operation of each apparatus in the sterilization apparatus by the arithmetic processing unit 201 of the sterilization apparatus 100.

  First, in step S501, the sterilizer 100 operates the pneumatic vacuum pump 220, sucks the gas in the sterilization chamber 219, and before sterilization to reduce the atmospheric pressure in the sterilization chamber 219 to a predetermined atmospheric pressure (for example, 45 Pascals). Process the process. Detailed processing of the pre-sterilization process will be described later with reference to FIG.

  In step S502, the sterilization apparatus 100 performs a sterilization process of sterilizing an object to be sterilized by putting a sterilizing agent in the sterilization chamber 219. Detailed processing of the sterilization process will be described later with reference to FIG.

  Next, in step S503, the sterilizer 100 performs a ventilation process for removing the sterilant contained in the sterilization chamber 219 and the vaporizing furnace 216. Detailed processing of the ventilation process will be described later with reference to FIG.

In the sterilization process in the sterilization process shown in FIG. 5 (including the processes of FIGS. 6, 7, and 8), a tube (conduit) through which sterilization gas flows and each device (hardware) will be described as a sterilization gas path.
<Description of FIG. 6>
Next, an example of detailed processing of the pre-sterilization process shown in S501 of FIG. 5 will be described using FIG.
FIG. 6 is a diagram showing an example of detailed processing of the pre-sterilization process shown in S501 of FIG.

  Each step (process) shown in FIG. 6 is performed by controlling the operation of each device (each hardware) in the sterilizer by the arithmetic processing unit 201 of the sterilizer 100.

  First, the sterilizer 100 operates the pneumatic vacuum pump 220 to start a process of sucking the gas in the sterilization chamber 219 (step S601). Here, it is assumed that all the valves of the sterilizer 100 are closed.

  In step S602, the sterilizer 100 determines whether the pressure (atmospheric pressure) in the sterilization chamber 219 has been reduced to a predetermined atmospheric pressure (for example, 45 Pascals). Specifically, it is determined whether the pressure (atmospheric pressure) in the sterilization chamber 219 measured by a pressure sensor provided in the sterilization chamber 219 is reduced to a predetermined atmospheric pressure (for example, 45 Pascals).

  In step S602, when it is determined that the pressure (atmospheric pressure) in the sterilization chamber 219 is not reduced to a predetermined atmospheric pressure (for example, 45 Pascal) (NO), the pneumatic vacuum pump 220 is continuously operated to sterilize. The gas in the chamber 219 is sucked and the pressure (atmospheric pressure) in the sterilization chamber 219 is reduced.

On the other hand, if it is determined in step S602 that the pressure (atmospheric pressure) in the sterilization chamber 219 has been reduced to a predetermined atmospheric pressure (for example, 45 Pascals) (YES), the pneumatic vacuum pump 220 is continuously operated. Then, the gas in the sterilization chamber 219 is sucked, and the process of step S502 is started. When starting the process of step S502, the gas in the sterilization chamber 219 is continuously sucked and decompressed by the pneumatic vacuum pump 220.
<Explanation of FIG. 7>
Next, an example of detailed processing of the sterilization process shown in S502 of FIG. 5 will be described using FIG.
FIG. 7 is a diagram showing an example of detailed processing of the sterilization process shown in S502 of FIG.

  Each step (process) shown in FIG. 7 is performed by controlling the operation of each device (each hardware) in the sterilizer by the arithmetic processing unit 201 of the sterilizer 100.

  First, the sterilizer 100 opens the valve (V5) 217, and conducts the conduit between the sterilization chamber 219 and the vaporizing furnace 216 (step S701). Thereby, since the gas in the sterilization chamber 219 is currently sucked and depressurized by the pneumatic vacuum pump 220, depressurization in the sterilization chamber 219 and in the vaporizing furnace 216 is started (step S702).

  Then, in step S110, the sterilizer 100 determines which one of the “mode for sterilizing and sterilizing the sterilant” button 304 and the “mode for sterilizing without sterilizing agent” button 305 is pressed (step S110). S703). If it is determined that the “mode for sterilizing and sterilizing” button 304 is pressed (YES), the process of step S704 is performed, and the “mode for sterilizing without concentrating sterilizing agent” button 305 is pressed. If it is determined (NO), the process of step S728 is performed.

  Here, first, a case where the “mode for sterilizing and sterilizing sterilizing agent” button 304 is pressed (when sterilizing agent is concentrated and sterilized) will be described.

  In step S704, the sterilizer 100 operates the liquid feed rotary pump 207 to suck a predetermined amount (for example, 2 milliliters) of the sterilizing agent in the cartridge 205. Then, the sucked predetermined amount of sterilizing agent is put into the concentration furnace 208. The predetermined amount of the sterilizing agent sucked out here is an amount that can saturate the space in the sterilization chamber 219 with the sterilizing agent.

  In step S705, the sterilizer 100 writes the remaining amount of the sterilizing agent remaining in the cartridge 205 in the RF-ID of the cartridge 205 attached to the cartridge attachment location. Specifically, a value obtained by subtracting a predetermined amount (for example, 2 milliliters) sucked from the cartridge 205 in step S704 from the remaining amount of the sterilant in the cartridge 205 read in step S101 is stored in the RF-ID.

  In addition, the sterilization apparatus 100 determines that the cartridge is not used this time when the first use date and time (date and time when the cartridge is first used in the sterilization apparatus) read from the RF-ID in step S101 does not include information indicating the date and time. Judged to be used for the first time in a sterilizer. Thus, only when it is determined that the cartridge is used for the first time in the sterilizer, the current date and time information is also written in the RF-ID.

  Next, since the sterilizer 100 heats the heater provided in the concentration furnace 208 whenever the sterilization apparatus 100 is powered on, the sterilant placed in the concentration furnace 208 in step S704 is Heated by the heat of the heater, the moisture contained in the sterilant in the concentration furnace 208 is evaporated (step S706).

  The reason why the heater provided in the concentrating furnace 208 is always heated when the sterilization apparatus 100 is turned on is to prepare for the case where it is necessary to sterilize immediately by surgery or the like.

  When the sterilizing agent is, for example, an aqueous hydrogen peroxide solution, the heater provided in the concentration furnace 208 is specifically heated here at 80 degrees. Thereby, water can be mainly evaporated (vaporized), and the sterilizing agent can be concentrated.

  Next, in step S707, the sterilizer 100 determines whether or not a predetermined time (for example, 6 minutes) has elapsed since the sterilant was added to the concentration furnace 208 in step S704. If it is determined that a predetermined time has elapsed since the sterilizing agent was put into the concentration furnace 208 (YES), the process of step S708 is performed. On the other hand, if a predetermined time has not elapsed since the sterilizing agent was put into the concentrating furnace 208 (NO), the sterilizing agent is continuously put in the concentrating furnace 208 and the sterilizing agent is subsequently concentrated.

  Next, in step S708, the sterilizer 100 determines whether the atmospheric pressure in the sterilization chamber 219 and the vaporization furnace 216 has been reduced to a predetermined atmospheric pressure (for example, 500 Pascals).

  When the pressure in the sterilization chamber 219 and in the vaporization furnace 216 is reduced to a predetermined pressure (YES), the sterilizer 100 determines that the valve (V3) 212 and the valve (V4) 213 in step S709. Are opened for a predetermined time (the valve (V3) 212 and the valve (V4) 213 are opened for a predetermined time (for example, 3 seconds), and the valve (V3) 212 and the valve (V4) 213 are closed)). The inside of 214 is depressurized. On the other hand, when the pressure in the sterilization chamber 219 and the vaporization furnace 216 is not reduced to a predetermined pressure (NO), the sterilant is continuously concentrated.

In step S710, the sterilizer 100 then opens the valve (V3) 212 and the valve (V4) 213 for a predetermined time and closes the valve (V3) 212 and the valve (V4) 213 in step S709. When the valve (V1) is opened for a predetermined time (for example, 3 seconds), the atmospheric pressure in the measuring tube 214 is lower than the atmospheric pressure in the concentrating furnace 208 (external). (Step S710). Here, by opening and closing the valve (V1) for a predetermined time, the sterilant contained in the concentrating furnace 208 is sucked into the measuring tube 214. Here, not only the sterilizing agent but also the air in the concentration furnace 208 is sucked into the measuring tube 214 together.
After that, the inside of the sterilization chamber 219 is continuously depressurized by the pneumatic vacuum pump 220.

  Therefore, the atmospheric pressure in the sterilization chamber 219 is lower than the atmospheric pressure in the measuring tube. Specifically, the atmospheric pressure in the sterilization chamber 219 is, for example, 400 Pa, and the atmospheric pressure in the measuring tube is a value of the atmospheric pressure (for example, 101325 Pa). The reason why the pressure in the measuring tube rises to near atmospheric pressure is that not only the sterilizing agent but also the air in the concentrating furnace 208 is sucked into the measuring tube 214 together.

  Next, in step S711, the sterilizer 100 opens the valve (V3) 212 and the valve (V4) 213 for a predetermined time (for example, 3 seconds), and air in the measuring tube (not including liquid sterilant). Is sucked into the sterilization chamber 219. That is, here, when the valve (V3) 212 and the valve (V4) 213 are opened and the predetermined time has elapsed, the valve (V3) 212 and the valve (V4) 213 are closed. As a result, the air in the measuring tube 214 is sucked out into the sterilization chamber 219, and at this time, the inside of the sterilization chamber 219 is continuously depressurized by the pneumatic vacuum pump 220, so that the air is sucked out into the sterilization chamber 219. The air is discharged outside the sterilization chamber through the exhaust HEPA filter 221.

  Next, the sterilizer 100 determines whether the atmospheric pressure in the sterilization chamber 219 and the vaporizing furnace 216 is reduced to a predetermined atmospheric pressure (for example, 80 Pa). In step S712, the valve (V5) 217 is closed (step S713).

Then, the sterilizer 100 opens the valve (V2) 215 (step S714). As a result, the sterilizing agent in the measuring tube 214 is sucked into the vaporizing furnace 216 and vaporized in the vaporizing furnace 216.
Here, the sterilizing agent is vaporized in the vaporizer as a molecular cluster.

  The inside of the sterilization chamber has a volume larger than that of the vaporizing furnace, and in the vaporizing furnace, the sterilizing agent is vaporized as a molecular cluster. This is because the volume of the vaporizing furnace is smaller than that in the sterilization chamber, and the distance between the molecules of the sterilant in the sterilization chamber is so close that molecular clusters are easily formed due to intermolecular forces.

Also at this time, the pneumatic vacuum pump 220 continues to suck the gas in the sterilization chamber 219 and depressurize the interior of the sterilization chamber 219. The atmospheric pressure rises in the vaporizing furnace 216 into which the sterilizing agent in the measuring tube 214 has been sucked.
That is, the atmospheric pressure in the vaporizing furnace 216 is higher than the atmospheric pressure in the sterilization chamber 219.
Also at this time, the pneumatic vacuum pump 220 continues to suck the gas in the sterilization chamber 219 and depressurize the interior of the sterilization chamber 219.

Next, the sterilizer 100 determines whether the atmospheric pressure in the sterilization chamber 219 has been reduced to a predetermined atmospheric pressure (for example, 50 Pa) and a predetermined time has elapsed since the valve (V2) 215 was opened in step S714. (Step S715), and when the atmospheric pressure in the sterilization chamber 219 is reduced to a predetermined atmospheric pressure (for example, 50 Pa) and a predetermined time has elapsed since the valve (V2) 215 was opened in Step S714 (YES) Then, the suction (evacuation) in the sterilization chamber 219 by the pneumatic vacuum pump 220 is stopped (step S716), and the valve (V5) 217 is opened (step S717). As a result, the vaporized sterilizing agent diffuses into the sterilization chamber 219, and the object to be sterilized can be sterilized.
This is diffused because the atmospheric pressure (eg, 50 Pa) in the sterilization chamber 219 is lower than the atmospheric pressure in the vaporization furnace 216.

Here, the sterilizing agent that diffuses further subdivides the molecular clusters in the vaporization furnace, so that the sterilizing agent can be further diffused into the sterilization chamber, and the sterilization effect can be enhanced.
In addition, it becomes possible to effectively sterilize a fine lumen of an object to be sterilized.

  Next, in step S717, the sterilizer 100 determines whether or not a predetermined time has elapsed since opening the valve (V5) 217 (step S718). After opening the valve (V5) 217, the sterilizer 100 determines whether a predetermined time (for example, , 330 seconds) (step S718: YES), the valve (V9) 227 is opened (step S719).

Thereby, since the atmospheric pressure in the vaporizing furnace 216 and the sterilization chamber 219 is lower than the atmospheric pressure outside the sterilizing apparatus 100, the outside air (air) outside the sterilizing apparatus 100 that has been cleaned with the intake HEPA filter is removed. And is sucked into the vaporizing furnace 216. Then, the sterilizing agent filled in the vaporizing furnace 216 as a gas and the sterilizing agent adhering to the inner surface of the vaporizing furnace 216 are sent into the sterilization chamber 219 by the air sent into the vaporizing furnace 216. The sterilization effect on the object to be sterilized in the sterilization chamber 219 is enhanced. That is, for example, this enhances the sterilization effect on a portion that is difficult to sterilize, such as the back of a thin tube to be sterilized.
As described above, the sterilization apparatus 100 is a sterilization apparatus that sterilizes an object using a sterilization gas (vaporized sterilant).

In step S719, the sterilizer 100 opens the valve (V7) 226 when a predetermined time (for example, 15 seconds) has elapsed since opening the valve (V9) 227, and further cleans it with the intake HEPA filter 210. The outside air (air) outside the sterilization apparatus 100 is sucked into the sterilization chamber 219. This is because the atmospheric pressure inside the sterilization chamber 219 and the vaporizing furnace 216 is lower than the atmospheric pressure outside the sterilization apparatus 100, so the outside air (air) outside the sterilization apparatus 100 is sucked into the sterilization chamber 219.
Thereby, the sterilization effect | action about the parts which are hard to sterilize, such as the back of the thin tube etc. which are to be sterilized, increases.

  Next, the sterilizer 100 determines whether the inside of the sterilization chamber 219 and the inside of the vaporizing furnace 216 have increased to atmospheric pressure, and when it is determined that the pressure has increased to atmospheric pressure (step S721: YES), the valve (V2) 215 is closed.

  Next, the sterilizer 100 closes the valve (V7) 226 (step S723).

  Then, the sterilizer 100 resumes the suction (evacuation) in the sterilization chamber 219 by the pneumatic vacuum pump 220 (step S724). Thereby, the outside air (air) outside the sterilization apparatus 100 cleaned by the intake HEPA filter 210 is sucked into the vaporizing furnace 216.

  The sterilizing agent filled as a gas in the vaporizing furnace 216 and the sterilizing agent adhering to the inner surface of the vaporizing furnace 216 are further transferred into the sterilization chamber 219 by the air sent into the vaporizing furnace 216. It is sent.

  As a result, the sterilization effect on a portion that is difficult to sterilize such as the back of a thin tube to be sterilized is enhanced, and the sterilizing agent in the vaporizing furnace 216 can be effectively reduced.

  Next, after the suction (evacuation) in the sterilization chamber 219 by the pneumatic vacuum pump 220 is restarted, the valve (V9) 227 is closed after a predetermined time (for example, 15 seconds) (step S725).

  At this time, suction (evacuation) in the sterilization chamber 219 is continuously performed by the pneumatic vacuum pump 220. In step S725, the sterilization chamber 219 and the vaporization furnace 216 are sealed, and the sterilization chamber 219 and The inside of the vaporizing furnace 216 is depressurized (step S726).

  Next, the sterilizer 100 determines whether or not the processing from step S702 to step S726 has been executed a predetermined number of times (for example, 4 times) (step S727). If it is determined that the processing has been executed (YES), step S503 is performed. Perform the process. On the other hand, if it is determined that the processing from step S702 to step S726 has not been executed a predetermined number of times (NO), the processing after step S702 is performed again. As described above, by performing the processing from step S702 to step S726 a predetermined number of times, the effect of the sterilization effect on the object to be sterilized is increased, and the object to be sterilized can be sufficiently sterilized.

  Next, a case where it is determined in step S703 that the “mode for sterilization without concentrating sterilant” button 305 is pressed (when sterilization is performed without concentrating sterilant) will be described.

  When it is determined in step S703 that the “mode for sterilization without concentrating sterilizing agent” button 305 is pressed (NO), the sterilizer 100 determines that the pressure in the sterilization chamber 219 and the vaporization furnace 216 is a predetermined pressure ( For example, it is determined whether the pressure has been reduced to 1000 Pa) (step S728).

  When it is determined that the pressure in the sterilization chamber 219 and the vaporization furnace 216 is reduced to a predetermined pressure (100 Pa) (step S728: YES), the sterilizer 100 operates the liquid feeding rotary pump 207. Then, a predetermined amount (for example, 2 ml) of the sterilant in the cartridge 205 is sucked. Then, the sucked predetermined amount of sterilizing agent is put into the concentration furnace 208 (step S729).

The predetermined amount of the sterilizing agent sucked out here is an amount that can saturate the space in the sterilization chamber 219 with the sterilizing agent.

  Next, in step S730, the sterilizer 100 writes the remaining amount of the sterilizing agent remaining in the cartridge 205 in the RF-ID of the cartridge 205 attached to the cartridge attachment location. Specifically, a value obtained by subtracting a predetermined amount (for example, 2 milliliters) sucked from the cartridge 205 in step S729 from the remaining amount of the sterilant in the cartridge 205 read in step S101 is stored in the RF-ID.

  In addition, in step S730, the sterilizer 100 does not include information indicating the date and time in the first use date and time (date and time when the cartridge was first used in the sterilizer) read from the RF-ID in step S101. This time, it is determined that the cartridge has been used for the first time in the sterilizer. Thus, only when it is determined that the cartridge is used for the first time in the sterilizer, the current date and time information is also written in the RF-ID.

  And if the sterilizer 100 performs the process of step S730, it will perform the process after step S709 already demonstrated.

  In step S728, when the inside of the sterilization chamber 219 reaches 1000 Pa, the suction of the sterilant is started in step S729, and when the sterilant is completely sucked in step S729, the pressure is less than 500 Pa. Therefore, the process can efficiently shift to S709.

As described above, after the pressure in the sterilization chamber 219 and in the vaporization furnace 216 is reduced to a predetermined pressure (1000 Pascals) at which the pressure reduction in the measuring tube 214 is started, the sucked-in predetermined amount of the sterilizing agent is concentrated. In the furnace 208, the measuring tube 214 can be immediately depressurized in step S709. After that, in step S710, the sterilizing agent in the concentrating furnace 208 is put in the measuring tube, so that the measuring tube 214 is immediately sterilized from the concentrating furnace 208. It becomes possible to put the agent. That is, the sterilizing agent can be put into the measuring tube 214 without being concentrated in the concentration furnace 208.
<Description of FIG. 8>
Next, an example of detailed processing of the ventilation process shown in S503 of FIG. 5 will be described with reference to FIG.
FIG. 8 is a diagram showing an example of detailed processing of the ventilation process shown in S503 of FIG.

Each process (process) shown in FIG. 8 is performed by controlling the operation of each apparatus in the sterilization apparatus by the arithmetic processing unit 201 of the sterilization apparatus 100.
The sterilizer 100 continues to perform the suction (evacuation) in the sterilization chamber 219 by the pneumatic vacuum pump 220 after restarting in step S724.
First, the sterilizer 100 opens the valve V (7) 226 (step S801).

  Then, when a predetermined time has elapsed after opening the valve V (7) 226, the valve V (7) 226 is closed (step S803), and suction (evacuation) in the sterilization chamber 219 is performed by the pneumatic vacuum pump 220. Do. Thereby, the inside of the sterilization chamber 219 is depressurized.

  Next, when the inside of the sterilization chamber 219 is depressurized to a predetermined atmospheric pressure (for example, 50 Pa) (step S804: YES), the sterilizer 100 opens the valve V (7) 226 (step S805). As a result, the outside air (air) outside the sterilization apparatus 100 cleaned by the intake HEPA filter 210 is sucked into the sterilization chamber 219. This is because the air pressure inside the sterilization chamber 219 is lower than the air pressure outside the sterilization device 100, so that outside air (air) outside the sterilization device 100 is sucked into the sterilization chamber 219.

  Then, the sterilizer 100 determines whether the atmospheric pressure in the sterilization chamber 219 has increased to atmospheric pressure, and if it is determined that the atmospheric pressure in the sterilization chamber 219 has increased to atmospheric pressure (step S806: YES), It is determined whether the processing from step S803 to step S805 has been performed a predetermined number of times (for example, four times) (step S807). If the processing from step S803 to step S805 has been performed a predetermined number of times (for example, four times) (YES), The valve V (7) 226 is closed (step S809), the ventilation process is terminated, and the process returns to step S101.

  On the other hand, if the processing from step S803 to step S805 has not been performed a predetermined number of times (for example, four times) (NO), the processing from step S803 is performed again.

Thereby, the sterilizing agent adhering to the surface in the sterilization chamber 219 and the sterilizing agent remaining as a gas in the sterilization chamber 219 are sucked by the pneumatic vacuum pump 220. The sucked gas (including the sterilizing agent) passes through the exhaust HEPA filter 221, the sterilizing agent is decomposed by the sterilizing agent decomposing apparatus 222, and the decomposed molecules are released to the outside.
<Description of FIG. 8>
Next, an example of detailed processing of the ventilation process shown in S503 of FIG. 5 will be described with reference to FIG.
FIG. 8 is a diagram showing an example of detailed processing of the ventilation process shown in S503 of FIG.

Each process (process) shown in FIG. 8 is performed by controlling the operation of each apparatus in the sterilization apparatus by the arithmetic processing unit 201 of the sterilization apparatus 100.
The sterilizer 100 continues to perform the suction (evacuation) in the sterilization chamber 219 by the pneumatic vacuum pump 220 after restarting in step S724.
First, the sterilizer 100 opens the valve V (7) 226 (step S801).

  Then, when a predetermined time has elapsed after opening the valve V (7) 226, the valve V (7) 226 is closed (step S803), and suction (evacuation) in the sterilization chamber 219 is performed by the pneumatic vacuum pump 220. Do. Thereby, the inside of the sterilization chamber 219 is depressurized.

  Next, when the inside of the sterilization chamber 219 is depressurized to a predetermined atmospheric pressure (for example, 50 Pa) (step S804: YES), the sterilizer 100 opens the valve V (7) 226 (step S805). As a result, the outside air (air) outside the sterilization apparatus 100 cleaned by the intake HEPA filter 210 is sucked into the sterilization chamber 219. This is because the air pressure inside the sterilization chamber 219 is lower than the air pressure outside the sterilization device 100, so that outside air (air) outside the sterilization device 100 is sucked into the sterilization chamber 219.

  Then, the sterilizer 100 determines whether the atmospheric pressure in the sterilization chamber 219 has increased to atmospheric pressure, and if it is determined that the atmospheric pressure in the sterilization chamber 219 has increased to atmospheric pressure (step S806: YES), It is determined whether the processing from step S803 to step S805 has been performed a predetermined number of times (for example, four times) (step S807). If the processing from step S803 to step S805 has been performed a predetermined number of times (for example, four times) (YES), The valve V (7) 226 is closed (step S809), the ventilation process is terminated, and the process returns to step S101.

  On the other hand, if the processing from step S803 to step S805 has not been performed a predetermined number of times (for example, four times) (NO), the processing from step S803 is performed again.

  Thereby, the sterilizing agent adhering to the surface in the sterilization chamber 219 and the sterilizing agent remaining as a gas in the sterilization chamber 219 are sucked by the pneumatic vacuum pump 220. The sucked gas (including the sterilizing agent) passes through the exhaust HEPA filter 221, the sterilizing agent is decomposed by the sterilizing agent decomposing apparatus 222, and the decomposed molecules are released to the outside.

<Description of FIG. 9>
Next, an example of detailed processing of the sterilization discharge processing shown in S114 of FIG. 4 will be described using FIG.
FIG. 9 is a diagram showing an example of detailed processing of the sterilization discharge processing shown in S114 of FIG.

  Each process (process) shown in FIG. 8 is performed by controlling the operation of each apparatus in the sterilization apparatus by the arithmetic processing unit 201 of the sterilization apparatus 100.

  First, the sterilizer 100 sucks all the liquid sterilant in the cartridge 205 by the liquid feed rotary pump 223 and sends it through a conduit between the liquid sensor 204 and the liquid feed rotary pump 223. All the sterilizing agents are introduced into the exhaust evaporation furnace 224 through a conduit between the liquid feed rotary pump 223 and the exhaust evaporation furnace 224 (step S901).

  The sterilization apparatus 100 is configured so that all the liquid sterilizing agents (sterilizing agents stored in the exhaust evaporation furnace 224) are sent by the exhaust evaporation furnace 224 through the conduit between the liquid feed rotary pump 223 and the exhaust evaporation furnace 224. Is heated by a heater provided in the exhaust evaporation furnace 224 to vaporize all of the sterilant. The vaporized sterilizing agent is sent to the exhaust HEPA filter 221 through a conduit between the exhaust HEPA filter 221 and the exhaust evaporation furnace 224 (step S902).

  Here, the heater provided in the exhaust evaporation furnace 224 is heated to a temperature higher than the boiling point of the sterilant (hydrogen peroxide) (the boiling point of hydrogen peroxide is 141 degrees). Therefore, all of the sterilizing agent is vaporized by the exhaust evaporation furnace 224.

  Then, the sterilizer 100 cleans the vaporized sterilant sent through the conduit between the exhaust evaporation furnace 224 and the exhaust HEPA filter 221 with the exhaust HEPA filter 221, (Containing the agent) passes through the conduit between the sterilant decomposer 222 and the exhaust HEPA filter 221 and is sent to the sterilizer decomposer 222.

The sterilizing agent decomposing apparatus 222 decomposes the molecules of the sterilizing agent contained in the gas sent from the conduit between the sterilizing agent decomposing apparatus 222 and the exhaust HEPA filter 221, and generates molecules generated by decomposing. Is released out of the sterilizer 100 (step S903).
Next, the state of the cartridge 205 and the extraction needle 203-A inserted into the cartridge 205 will be described with reference to FIGS.

<Description of FIG. 11>
FIG. 11 is a side view of the sterilizing agent cartridge 205 used in the sterilization apparatus according to the present invention as viewed from the side.

  The cartridge shown in FIG. 11 is a cartridge that contains a sterilizing agent in an amount that can be sterilized multiple times in one bottle.

  The cartridge shown in FIG. 11 contains a chemical solution containing hydrogen peroxide (medicine) used as a sterilizing agent.

  As shown in FIG. 11, the cartridge includes a first container and a lid of the first container.

  The external appearance of the first container has a cup shape. The material (material) of the first container is polypropylene (plastic) that is resistant to hydrogen peroxide as a sterilant. The first container is also provided to protect a second container described later.

  The lid is a lid for closing the first container above the first container. In other words, the lid is bonded to the flange on the outer periphery of the first container. The lid is made of polypropylene (plastic) that is resistant to hydrogen peroxide, which is a sterilizing agent.

  A cross section of the cartridge at the center point of the cartridge as viewed from the upper side of the cartridge is defined as a cross section 1.

<Description of FIG. 12>

  Next, the internal structure of the cartridge when the tip of the extraction needle 203-A is inserted to the bottom of the cartridge or near the bottom in order to suck the sterilizing agent in the cartridge will be described with reference to FIG.

  FIG. 12 is a cross-sectional view of the cross section 1 of the cartridge when the tip of the extraction needle 203-A is inserted to the bottom of the cartridge or near the bottom in order to suck the sterilizing agent in the cartridge.

  The sterilizer 100 operates so that the extraction needle 203-A (injection needle) is directed toward the cartridge and is lowered from the upper part (upper side) to the lower part (lower side) of the cartridge. The extraction needle 203-A (injection needle) is inserted into the opening portion).

  At this time, the sterilizer 100 operates so that the injection needle penetrates the hole of the lid and the hole of the cap, and the tip of the injection needle comes to the lower part of the second container 409.

As shown in FIG. 12, in step S103, the sterilizing agent in the cartridge can be extracted by inserting the injection needle to the bottom or near the bottom of the cartridge.
<Description of FIG. 13>
Next, the external appearance of the sterilizing agent decomposing apparatus 222 with a HEPA filter according to the present invention will be described with reference to FIG.
FIG. 13 is a diagram showing an example of an external view of a sterilizing agent decomposing apparatus 222 with a HEPA filter according to the present invention.
222 is the sterilizing agent decomposing apparatus 222 with a HEPA filter according to the present invention.
Reference numeral 1301 denotes a conduit (tube) that can be connected to and connected to the pneumatic vacuum pump 220.
Reference numeral 1302 denotes a conduit (tube) that is connected to the concentrating furnace 208 and can be conducted.
Reference numeral 1303 denotes a conduit (tube) that can be connected to the exhaust evaporation furnace 224 to be conductive.

Reference numeral 1304 denotes a conduit (tube) that can be connected to the outside of the sterilization apparatus 100, and is a gas discharge port for a gas generated by decomposing the sterilant. The gas discharge port 1304 is a port for discharging a small amount of water generated when the hydrogen peroxide gas is decomposed.
Reference numerals 1301, 1302, and 1303 each function as a port for introducing a gas containing hydrogen peroxide gas into the sterilizing agent decomposing apparatus 222 with a HEPA filter.
<Description of FIG. 14>
Next, the structure of the sterilizing agent decomposing apparatus 222 with a HEPA filter according to the present invention will be described with reference to FIG.
FIG. 14 is a diagram showing an example of a cross-sectional view of a sterilizing agent decomposing apparatus 222 with a HEPA filter according to the present invention.

The sterilizing agent decomposing apparatus 222 with a HEPA filter is a guide for dispersing the gas entering from 1301, 1302, and 1303 in the sterilizing agent decomposing apparatus 222 so that the gas does not concentrate in one place. Pores).
As a result, gas is dispersed and introduced into the HEPA filter 1402.

Reference numeral 1305 denotes a pressure sensor that measures the pressure (atmospheric pressure) inside the sterilizer decomposition apparatus 222 with a HEPA filter. The pressure sensor 1305 is a sensor for constantly monitoring the pressure (atmospheric pressure) inside the sterilizing agent decomposing apparatus 222 and monitoring the inside of the sterilizing agent decomposing apparatus 222 to be a positive pressure so that no gas leaks.
The pressure vessel 1305 is an application example of measuring means for measuring the atmospheric pressure in the sterilizing agent decomposition apparatus 222 (sterilization gas decomposition apparatus).

  The HEPA filter 1402 filters dust and dust in the gas entering from 1301, 1302, and 1303 with a High Efficiency Particulate Air Filter (HEPA) filter to prevent the catalyst 1403 from being clogged or deteriorated. The HEPA filter 1402 is an application example of a filter that cleans sterilization gas.

FIG. 14 shows an example of a device in which the guide 1401 and the HEPA filter 1402 are incorporated in the sterilizing agent decomposing apparatus 222. The guide 1401, the HEPA filter 1402, and the sterilizing agent decomposing apparatus 222 are configured as separate units. Also good.
The catalyst 1403 is a material of manganese dioxide, and is a catalyst that decomposes hydrogen peroxide (sterile component) into water and oxygen. That is, it is a catalyst that decomposes sterilization gas.
The bottom tray 1404 is a tray for receiving water generated when hydrogen peroxide is decomposed, and has a large number of pores.

All the gases introduced from 1301, 1302, and 1303 pass through the HEPA filter 1402 and the catalyst 1403, are decomposed as water and oxygen by the catalyst 1403, and are discharged from the gas discharge port 1304.
<Description of FIG. 15>
Next, an example of an internal state of the sterilizing agent decomposing apparatus 222 with a HEPA filter will be described with reference to FIG.
FIG. 15 is a diagram illustrating an example of an internal state of the sterilizing agent decomposing apparatus 222 with a HEPA filter.

  The gas introduced into the sterilizing agent decomposing apparatus 222 with a HEPA filter from 1301, 1302, and 1303 passes through the hole of the guide 1401 for dispersing the gas and passes through the HEPA filter 1402.

However, if the HEPA filter 1402 and / or the catalyst 1403 is clogged with dust, water, or hydrogen peroxide liquid, the air pressure in the hatched portion 1501 rises (positive pressure), and is sufficiently sterilized. There is a possibility that the gas or liquid whose components are not decomposed is discharged out of the sterilizing agent decomposing apparatus 222.
<Description of FIG. 16>
Next, an example of each process of the sterilization process by the sterilizer according to the present invention will be described with reference to FIG.
FIG. 16 is a flowchart showing an example of each step of sterilization processing by the sterilization apparatus according to the present invention.
Each process (process) shown in FIG. 16 is performed by controlling the operation of each apparatus in the sterilization apparatus by the arithmetic processing unit 201 of the sterilization apparatus 100.

  That is, by executing a program that can be read and executed by the arithmetic processing unit 201 of the sterilization apparatus 100, the operation of each apparatus is controlled, and each process (process) shown in FIG. 16 is executed.

  Each step (process) shown in FIG. 16 is repeatedly executed until the power is turned off when the power to the sterilizer 100 is turned on. That is, each process (process) shown in FIG. 16 is performed in parallel while the process shown in FIG. 4 is being executed.

First, when the sterilization apparatus 100 starts the sterilization process (the process of FIG. 4) in step S1601 (YES), the pressure sensor 1305 detects the pressure (atmospheric pressure) in the sterilizing agent decomposing apparatus 222 in step S1602.
Then, the sterilizer 100 determines whether the pressure detected by the pressure sensor 1305 is equal to or lower than a predetermined value (for example, 1.5 atmospheric pressure or lower) (step S1602).

  If the sterilization apparatus 100 determines that the pressure detected by the pressure sensor 1305 is equal to or lower than a predetermined value (for example, 1.5 atmospheric pressure or lower) (YES), the HEPA filter 1402 and / or the catalyst 1403 is determined. However, it is determined that clogging is not caused by dust, dust, water or hydrogen peroxide solution, and the process proceeds to step S1612.

  When the sterilization apparatus 100 determines in step S1612 whether each step (process) of the sterilization process illustrated in FIG. 4 has been completed, and determines that each process (process) of the sterilization process illustrated in FIG. Returns the process to step S1601. On the other hand, when it is determined that each step (process) of the sterilization process illustrated in FIG. 4 is not completed, the process returns to step S1602.

If the sterilization apparatus 100 determines in step S1602 that the pressure detected by the pressure sensor 1305 is not less than a predetermined value (eg, 1.5 atmospheres or less) (NO), the sterilization apparatus 100 moves the process to step S1603. .
Step S1602 is an application example of determination means for determining whether or not the atmospheric pressure measured by the pressure sensor 1305 is equal to or higher than a predetermined atmospheric pressure.

  If the pressure detected by the pressure sensor 1305 is not less than or equal to a predetermined value (for example, less than 1.5 atm) in step S1603, the sterilizer 100 measures the time continuously determined in S1602, and the time Whether or not exceeds a predetermined time (for example, 10 seconds). And when it determines with the sterilizer 100 exceeding predetermined time (for example, 10 second) (step S1603: YES), it is clogged with the liquid of dust, dust, water, or hydrogen peroxide solution. Determination is made (determining that air clogging has occurred in the sterilizing agent decomposing apparatus 222), and the sterilization process and operation are immediately interrupted (step S1604).

  That is, in step S1604, the sterilization apparatus 100 interrupts (stops) the sterilization process due to the positive pressure in the temporary sterilizing agent decomposing apparatus 222 (the pressure in the space of the hatched portion 1501 increases).

  Step S1604 is an application example of stop means for stopping the operation / processing of the sterilization process on condition that the atmospheric pressure measured by the pressure sensor 1305 is equal to or higher than a predetermined atmospheric pressure (S1602).

  Step S1604 is an application example of stop means for stopping the operation / processing of the sterilization process on the condition that the atmospheric pressure measured by the pressure sensor 1305 is equal to or higher than the predetermined atmospheric pressure continuously for a predetermined time (S1603). It is.

Then, when the sterilization process is interrupted in step S1604, the sterilization apparatus 100 displays the screen shown in FIG. 17 (error and replacement instruction screen 1701 of the sterilizing agent decomposing apparatus 222) on the display unit 102 (step S1605).
FIG. 17 is a diagram showing an example of a replacement instruction screen 1701 displayed on the display unit 102.

As described above, in step S1605, on the condition that the atmospheric pressure measured by the pressure sensor 1305 is equal to or higher than the predetermined atmospheric pressure, the atmospheric pressure in the sterilizing agent decomposing apparatus (sterilizing gas decomposing apparatus) is equal to or higher than the predetermined atmospheric pressure. It is an application example of the notification means to notify.
Then, the user replaces (changes) the sterilizing agent decomposing apparatus 222 with a new one.

Further, the sterilizer 100 determines whether or not the atmospheric pressure in the sterilizing agent decomposing apparatus 222 detected by the pressure sensor 1305 has become a predetermined value or less (step S1606), and when it is determined that the atmospheric pressure has become the predetermined value or less. (YES), it is determined that the replacement of the sterilizing agent decomposing apparatus 222 has been completed, it is determined that the ventilation process of the sterilization room can be performed, and the ventilation start instruction reception screen 1801 (in the sterilization room) shown in FIG. Display the ventilation start screen. (Step S1607)
FIG. 18 is a diagram illustrating an example of a ventilation start instruction reception screen 1801 displayed on the display unit 102.
The “ventilation start button” (1802) on the ventilation start instruction reception screen 1801 displayed in step S1607 is pressed by the user.

  Then, when the “ventilation start button” (1802) is pressed by the user (step S1608: YES), the sterilizer 100 starts the sterilization chamber ventilation process (step S1609).

  In the ventilation process in step S1609, specifically, vacuuming is started to suck out the gas in the sterilization chamber 219 by the pneumatic vacuum pump 220, and the process shown in FIG. 8 is executed to ventilate the sterilization chamber. In addition, the sterilization chamber can be ventilated by starting the vacuum drawing of the gas in the sterilization chamber 219 by the pneumatic vacuum pump 220 and opening all the valves of the sterilizer 100.

  The ventilation process of step S1609 is an application example of the ventilation means of the present invention. The operation and process of the sterilization process are stopped by step S1604, and the operation and process of the sterilization process are started by the start means before use in the sterilization process. The operation and processing to ventilate the inside of the sterilization gas route.

  Next, when the ventilation process in step S1609 is completed, the sterilizer 100 determines that the hydrogen peroxide gas does not leak and can safely open and close the sterilization chamber door 104, and displays a sterilization start screen (1901 in FIG. 19). It is displayed (step S1610).

In other words, the sterilization apparatus 100 has the sterilization chamber door 104 in all processes and processing after step S1604 for safety until the ventilation of the sterilization chamber is completed in step S1609 and the sterilization start screen (1901) is displayed. Control is performed so that opening and closing of the door cannot be performed.
FIG. 19 is a diagram showing an example of a sterilization start instruction reception screen 1901 displayed on the display unit 102.

  Steps S1607 and S1608 are application examples of a reception unit that receives a sterilization process operation and a process start instruction. The start unit is configured on the condition that the reception unit receives a sterilization process operation and a process start instruction. The sterilization process operation and processing stopped in S1604 are started (S1611: YES).

  Next, when the sterilization start button 1902 is pressed by the user (step S1611: YES), the sterilization apparatus 100 starts the sterilization process. That is, the sterilization process is executed from S101 of FIG.

  Thus, when the sterilization start button 1902 is pressed by the user (step S1611: YES), the sterilization apparatus 100 starts the operation / processing of the sterilization process stopped in step S1604 (starting means).

  In addition, when the sterilization start button 1902 is pressed by the user (step S1611: YES), the sterilization apparatus 100 has already passed through the sterilization mode selection screen (303 in FIG. 3) when interrupted in step S1604. If the selected “mode to concentrate and sterilize sterilant” or “mode to sterilize without concentrating sterilant” is selected, the sterilization process is started in the selected mode. May be.

  The sterilization apparatus 100 starts processing from step S1604 for safety when the power is turned off in any state from step S1604 to step S1609 and then the power is turned on.

  As mentioned above, although this invention was demonstrated based on embodiment, this invention is not limited to these embodiment, Various forms of the range which does not deviate from the summary of this invention are also contained in this invention. .

For example, the function of the above embodiment may be used as a sterilization method, and this sterilization method may be executed by a sterilization apparatus. Moreover, you may make it make the computer with which the sterilizer equips the program which has the function of the above-mentioned embodiment run.
The control program is recorded on a computer-readable recording medium, for example.

  The present invention can also be realized by executing the following processing. That is, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various recording media, and the computer (or CPU, MPU, etc.) of the system or apparatus reads the program. To be executed.

DESCRIPTION OF SYMBOLS 100 Sterilizer 101 Cartridge attachment door 102 Display part 103 Printing part 104 Sterilization room door

Claims (12)

A sterilization apparatus for sterilizing an object using sterilization gas,
The path of the sterilization gas used in the sterilization process;
A sterilization gas decomposition apparatus for decomposing the sterilization gas provided in the path;
Measuring means for measuring the atmospheric pressure in the sterilization gas decomposition apparatus;
Stop means for stopping the operation of the sterilization process on condition that the atmospheric pressure measured by the measurement means is equal to or higher than a predetermined atmospheric pressure;
A sterilization apparatus comprising:   The sterilization apparatus according to claim 1, wherein the sterilization gas decomposition apparatus further includes a catalyst that decomposes the sterilization gas.   The sterilization apparatus according to claim 1 or 2, wherein the sterilization gas decomposition apparatus further includes a filter for cleaning the sterilization gas.   The said stop means stops the operation | movement of the said sterilization process on condition that the atmospheric | air pressure measured by the said measurement means is more than predetermined | prescribed atmospheric pressure more than predetermined time continuously. The sterilizer according to any one of the above. Starting means for starting the sterilization process stopped by the stopping means;
Ventilation means for ventilating the path before the sterilization process is stopped by the stop means and before the sterilization process is started by the start means;
The sterilizer according to any one of claims 1 to 4, further comprising: Further comprising a receiving means for receiving an instruction to start the sterilization process,
6. The start unit according to claim 1, wherein the start unit starts the sterilization process stopped by the stop unit on condition that the start unit has received an instruction to start the sterilization process. The sterilizer according to item.   The apparatus further comprises notification means for notifying that the atmospheric pressure in the sterilization gas decomposing apparatus is equal to or higher than a predetermined pressure on condition that the atmospheric pressure measured by the measuring means is equal to or higher than a predetermined atmospheric pressure. The sterilizer according to any one of 1 to 6. A determination unit for determining whether or not the atmospheric pressure measured by the measurement unit is equal to or higher than a predetermined atmospheric pressure;
The said stop means stops the operation | movement of the said sterilization process on the condition that the atmospheric | air pressure measured by the said measurement means was determined to be more than predetermined | prescribed atmospheric | air pressure by the said determination means. The sterilizer according to any one of 1 to 7. The path of the sterilization gas used in the sterilization process;
A sterilization gas decomposition apparatus for decomposing the sterilization gas provided in the path;
A control method in a sterilization apparatus for sterilizing an object using the sterilization gas,
A measurement step for measuring the atmospheric pressure in the sterilization gas decomposition apparatus;
A stop step of stopping the operation of the sterilization process on the condition that the atmospheric pressure measured in the measurement step is equal to or higher than a predetermined atmospheric pressure;
A control method comprising: A sterilization apparatus for sterilizing an object using sterilization gas,
The path of the sterilization gas used in the sterilization process;
A filter device provided with a filter provided in the path for cleaning the sterilizing gas;
Measuring means for measuring the atmospheric pressure in the filter device;
Stop means for stopping the operation of the sterilization process on condition that the atmospheric pressure measured by the measurement means is equal to or higher than a predetermined atmospheric pressure;
A sterilization apparatus comprising:   The sterilizer according to claim 11, wherein the filter device further includes a catalyst for decomposing the sterilizing gas. The path of the sterilization gas used in the sterilization process;
A filter device provided with a filter provided in the path for cleaning the sterilizing gas;
A control method in a sterilization apparatus for sterilizing an object using the sterilization gas,
A measuring step for measuring the atmospheric pressure in the filter device;
A stop step of stopping the operation of the sterilization process on the condition that the atmospheric pressure measured in the measurement step is equal to or higher than a predetermined atmospheric pressure;
A control method comprising:

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