JP6739588B2 - Sterilizer, its control method, and program - Google Patents

Description

The present invention relates to a sterilizing apparatus , a control method thereof, and a program , and in particular, sterilization for sterilizing an object to be sterilized by using a sterilizing agent stored in a storage unit of a cartridge having a plurality of storage units storing the sterilizing agent. Regarding the device.

Medical instruments such as syringes and surgical tools cannot be reused unless they are sterilized after use because pathogenic bacteria may adhere to them and they may adversely affect the human body. Therefore, there is a sterilizer for sterilizing an object requiring sterilization such as a medical instrument.

Since some sterilizing agents are dangerous to handle, there is a sterilizing device that sterilizes an object to be sterilized with a sterilizing agent automatically supplied from a sterilizing agent container in consideration of user safety.

For example, Patent Document 1 discloses a technique of draining a hydrogen peroxide solution in a hydrogen peroxide container with a drain needle.

Patent Document 2 discloses a technique of supplying dry air to a sterilization chamber in order to dry the outer surface of a plastic container after steam sterilization.

JP, 2013-172986, A JP-A-8-196605

Further, for example, the sterilizing agent is divided into 10 containers (capsules), and the remaining cartridges in some unused capsules of the capsule-type sterilizing agent cartridge are automatically discarded due to the expiration of the usage period or the like. The function to do is known.

However, when automatically disposing of a cartridge having some unused capsules, it is necessary to dispose of the cartridge as special management waste. However, conventionally, even with a cartridge having some unused capsules, all the capsules are transported (discarded) to the same place as the used cartridge, so which cartridge is discarded as special management waste. It was necessary to check if it was necessary, and the work was complicated. In addition, when the cartridge is discarded as special management waste, the disposal cost is higher than the disposal cost of disposing of the cartridge in which all capsules have been used, and the disposal costs a lot.

An object of the present invention, opening the have accommodating portion not been opened plurality of accommodating portions sac Chi is that you discharge the sterilant is received in the receiving portion that is the opening.

To achieve the above object, the sterilization device according to the invention, the sterilant you sterile sterilizer sterilizing object using sterilant is accommodated in the accommodating portion of the cartridge having a plurality of accommodating portions to be accommodated a is a opening means for opening the housing portion of the cartridge, and a discharge means for discharging a sterilizing agent accommodated in the accommodation portion which is opened by said opening means, the previous SL opening means, said plurality of housing portions operation opened gastric accommodation portion not been opened out of the discharge means, for discharging the sterilizing agent accommodated in the accommodating portion, which is the opening, without the sterilization process for sterilizing the sterile object And a control means for controlling so as to perform .
Further, the present invention is a method for controlling a sterilizing apparatus for sterilizing an object to be sterilized by using a sterilizing agent stored in a storage part of a cartridge having a plurality of storage parts storing a sterilizing agent. An opening step of opening the portion, a discharging step of discharging the sterilizing agent stored in the storage portion opened by the opening step, and an unopened storage portion of the plurality of storage portions in the opening step. A control step of opening and controlling the discharge step to perform an operation of discharging the sterilizing agent stored in the opened storing section without using it in the sterilization process for sterilizing the object to be sterilized, It is characterized by including.
Further, the present invention is characterized by a program for causing the above-mentioned sterilization device to function.

According to the present invention, it is possible to open the have accommodating portion not been opened plurality of accommodating portions sac Chi, discharging the sterilizing agent accommodated in the accommodating portion, which is the opening.

It is a figure which shows an example of a hardware constitution of the sterilization apparatus which concerns on this invention. It is a figure which shows an example of the hardware constitutions of the cartridge accommodation chamber which concerns on this invention. It is a figure which shows an example of all the processes by the sterilizer which concerns on this invention. It is a figure showing an example of detailed processing of discharge processing. It is a figure showing an example of detailed processing of sterilization processing. It is a figure which shows an example of the detailed process of a pre-sterilization process. It is a figure showing an example of detailed processing of a sterilization process. It is a figure showing an example of detailed processing of a ventilation process. It is a figure which shows an example of the hardware constitutions of the sterilization apparatus and sterilizing agent supply apparatus which concern on this invention. It is a figure which shows the modification of the hardware constitutions of the cartridge accommodation chamber which concerns on this invention. It is a figure showing an example of detailed processing of discharge processing.

Hereinafter, an embodiment of a sterilizer according to the present invention will be described with reference to the drawings.
FIG. 1 will be described.

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

100 is a sterilization apparatus according to the present invention, 101 is a cartridge mounting door, 102 is a display unit, 103 is a printing unit 103, and 104 is 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 (hydrogen peroxide or a liquid of hydrogen peroxide solution).

When the cartridge attachment door 101 is opened, there is a cartridge attachment location, and the user can attach 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 sterilization result on printing paper, and appropriately prints the history of sterilization processing and the sterilization result on printing paper.

The door 104 of the sterilization chamber is a door for putting the object to be sterilized into the 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.

The sterilization chamber is a housing having a predetermined capacity. The atmospheric pressure (pressure) in the sterilization chamber can be maintained from atmospheric pressure to vacuum pressure.

Further, the temperature inside the sterilization chamber is maintained within a predetermined range during the sterilization process.

The sterilization apparatus 100 according to the present invention includes an arithmetic processing unit (MPU or the like) 201, a display unit 102, a printing unit 103, a lock operation control unit 202, an extraction needle operation control unit 203, and a cartridge mounting door 101. , A liquid sensor 204, a cartridge 205, an RF-ID reader/writer, a liquid feeding rotary pump 207, a concentration furnace 208, a pneumatic feeding pressure pump 209, a HEPA filter 210, a valve (V1) 211, Valve (V3) 212, valve (V4) 213, metering pipe 214, valve (V2) 215, vaporization furnace 216, valve (V5) 217, valve (V9) 227, and valve (V7) 226. A sterilization chamber (also referred to as a vacuum chamber) 219, a vacuum pump 220, an exhaust HEPA filter 221, a sterilizer decomposition device 222, a liquid feed rotary pump 223, and an exhaust evaporation furnace 224.

The sterilization device 100 is a device for sterilizing an object by taking out the sterilizing agent from the cartridge 205 containing the sterilizing agent. That is, the sterilization apparatus 100 is a sterilization apparatus that performs a sterilization process for sterilizing an object to be sterilized by using the sterilizing agent stored in the storage unit of a cartridge having a plurality of storage units storing the sterilizing agent.

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

The liquid sensor 204 checks whether the liquid sterilant in the cartridge 205 passes through a pipe (conduit) that is electrically connected (connected) to the liquid delivery rotary pump 207 and the liquid delivery rotary pump 223 from the extraction needle (injection needle). It is a device for detecting.

Specifically, it can be detected from the spectrum obtained by irradiating the tube with infrared light whether the sterilizing agent passes through the tube.

The RF-ID reader/writer 206 is a device that can read the serial number, the date of manufacture, the date and time of first use, the remaining amount of the sterilizing agent, and the filling method from the RF-ID provided on the lower side of the cartridge 205. Is. The RF-ID reader/writer 206 is an application example of the reading means of the present invention, is information attached to the cartridge, and is it possible to perform sterilization processing using a sterilizing agent stored in the storage portion of the cartridge? Read the information to determine.

The RF-ID reader/writer 206 is a device that can write the date and time of first use, the remaining amount of the sterilizing agent, and the filling method into the RF-ID provided on the lower side of the cartridge 205.

The RF-ID reader/writer 206 is installed below the cartridge mounting door 101 at the bottom of the cartridge mounting location, and reads the RF-ID mounted on the lower side of the cartridge 205. It is possible to write data such as the date and time of first use, the remaining amount of the sterilizing agent and the filling method in the RF-ID.

The liquid feeding rotary pump 207 is electrically connected (connected) to the concentrating furnace 208 via a conduit, and is electrically connected to the liquid sensor 204 via a conduit.

The liquid feeding rotary pump 207 is a device that sucks the liquid sterilizing agent in the cartridge 205 by a pump and sends the sterilizing agent to the concentrating furnace 208 through a conduit.

Further, the liquid feed rotary pump 207, in cooperation with the liquid sensor 204, can suck a predetermined amount of the sterilizing agent from the cartridge 205.

The concentration furnace 208 is connected to the liquid feed rotary pump 207, the air feed pressurization pump 209, the metering pipe 214, and the exhaust HEPA filter 221 by conduits, respectively.

The concentrating furnace 208 heats the sterilizing agent sent from the liquid feeding rotary pump 207 through a conduit using a heater to evaporate (vaporize) water contained in the sterilizing agent and concentrate the sterilizing agent.

Further, the vaporized water is pushed out by the air sent from the pneumatic pressurizing pump 209 through the conduit to the conduit communicating with the exhaust HEPA filter 221, and is exhausted from the inside of the concentrating furnace 208. A valve (1) 211 is provided between the measuring pipe 214 and the conduit between the concentrating furnace 208.

The pneumatic pressurizing pump 209 is connected to the concentrating furnace 208, the HEPA filter 210, and a conduit, respectively. The pneumatic pressurizing pump 209 is a device that sends the outside air (air) of the sterilizer 100 to the concentrating furnace 208 through the HEPA filter 210 and the conduit with the HEPA filter 210.

The HEPA filter 210 is in communication with the pneumatic pressurizing pump 209, the sterilization chamber 219, the vaporization furnace 216, and a conduit, respectively. The HEPA filter 210 filters dust and dirt in the outside air (air) outside the sterilization apparatus 100, bacteria, and the like 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 the conduit by the air feeding pressure pump 209. The purified air is conducted to the vaporization furnace 216 through a conduit with the vaporization furnace 216 or is conducted to the sterilization chamber 219 through a conduit with the sterilization chamber 219.

That is, the HEPA filter 210 is in communication with the outside air (air) outside the sterilizer 100. Therefore, the conduit between the pneumatic pressurizing pump 209 and the HEPA filter 210, the conduit between the sterilization chamber 219 and the HEPA filter 210, and the conduit between the vaporization furnace 216 and the HEPA filter 210 are the HEPA filter 210. Through which the outside air (air) is connected.

A valve (V9) 227 is provided in the conduit between the HEPA filter 210 and the vaporization furnace 216. A valve (V7) 226 is provided in the conduit between the 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 opening the valve enables conduction by the conduit between the concentrating furnace 208 and the metering pipe 214. By closing the valve, the conduit between the concentrating furnace 208 and the measuring pipe 214 cannot be connected.

The valve (V3) 212 is a valve provided in a conduit between the metering pipe 214 and the sterilization chamber 219, and opening the valve enables the conduit between the metering pipe 214 and the sterilization chamber 219. By closing the valve, the conduit between the measuring pipe 214 and the sterilization chamber 219 cannot be connected.

Further, this valve is provided near the measuring pipe 214, and is provided at least at a position closer to the measuring pipe 214 than a valve (V4) described later.

The valve (V4) 213 is a valve provided in the conduit between the metering pipe 214 and the sterilization chamber 219, and opening the valve enables the conduit between the metering pipe 214 and the sterilization chamber 219. By closing the valve, the conduit between the measuring pipe 214 and the sterilization chamber 219 cannot be connected.

Further, this valve is provided near the sterilization chamber 219 and is provided at least at a position closer to the sterilization chamber 219 than the 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 conduction of the conduit between the measuring pipe and the sterilization chamber. Whether the valve (V4) 213 or the valve (V3) 213 is opened or closed enables or disables the conduit between the measuring tube and the sterilization chamber. Good.

That is, by providing either one of the valve (V4) 213 and the valve (V3) 213 and opening or closing either one of them, the conduit between the measuring pipe and the sterilization chamber is connected. You can also enable or disable it.

The measuring pipe 214 is electrically connected by conduits between the concentration furnace 208, the vaporization furnace 216, and the sterilization chamber 219.

In the metering pipe 214, by opening the valve (V1) 211, the sterilizing agent flows in from the concentrating furnace 208, and by opening the valve (V3) 212 and the valve (V4) 213, the sterilizing agent is sucked from the inside of the cartridge 205 and unnecessary. This is a device for removing unnecessary air, which has flowed into the concentration furnace 208 from the HEPA filter 210 from the air and/or from the concentration furnace 208 into the measurement pipe 214, by the measurement pipe 214.

The valve (V2) 215 is a valve provided in a conduit between the metering pipe 214 and the vaporization furnace 216, and by opening the valve, conduction by the conduit between the metering pipe 214 and the vaporization furnace 216 is possible. The valve is a valve that closes the valve so that the conduit between the metering pipe 214 and the vaporization furnace 216 cannot be conducted.

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

The vaporization furnace 216 is a device that vaporizes the sterilizing agent by being decompressed by the vacuum pump 220.

The valve (V5) 217 is a valve provided in a conduit between the vaporization furnace 216 and the sterilization chamber 219, and by opening the valve, conduction by the conduit between the vaporization furnace 216 and the sterilization chamber 219 is possible. The valve is a valve that closes the valve so that the conduit between the vaporization furnace 216 and the sterilization chamber 219 cannot be conducted.

The valve (V9) 227 is a valve provided in a conduit between the vaporization furnace 216 and the HEPA filter 210, and opening the valve enables conduction by the conduit between the vaporization furnace 216 and the HEPA filter 210. , Is a valve that closes the valve to disable conduction by the conduit between the vaporization furnace 216 and the HEPA filter 210. That is, the valve (V9) 227 is a valve that can open and close the connection between the vaporization 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 HEPA filter 210, and opening the valve enables the conduit between the sterilization chamber 219 and the HEPA filter 210. , Is a valve that closes the valve so that the conduit between the sterilization chamber 219 and the HEPA filter 210 cannot be conducted. 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.
The pressure in the sterilization chamber can be maintained from atmospheric pressure to vacuum pressure.

Further, the temperature inside the sterilization chamber is maintained within a predetermined range during the sterilization process.

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 by using the atmospheric pressure in the sterilization chamber 219 measured by this pressure sensor.

The vacuum pump 220 includes a sterilization chamber 219, a vaporization furnace 216, a measuring pipe 214, a conduit between the measuring pipe 214 and the vaporization furnace 216, a conduit between the vaporization furnace 216 and the sterilization chamber 219, and a measuring pipe. A device that sucks the gas in the space inside the conduit between 214 and the sterilization chamber 219 to reduce the pressure in each space to a vacuum state (a state in the space filled with gas at a pressure lower than atmospheric pressure). is there.

Further, the vacuum pump 220 is an application example of a decompression means for decompressing the accommodation chamber 228.

The vacuum pump 220 is electrically connected to the sterilization chamber 219 by a conduit, and is electrically connected to the exhaust HEPA filter 221 by a conduit.

The exhaust HEPA filter 221 is electrically connected to the vacuum pump 220 by a conduit. Further, the exhaust HEPA filter 221 is electrically connected to the exhaust evaporation furnace 224 by a conduit.

Further, the exhaust HEPA filter 221 is electrically connected to the sterilant decomposition device 222 by a conduit. Further, the exhaust HEPA filter 221 is connected to the concentrating furnace 208 by a conduit.

The exhaust HEPA filter 221 removes dust, dust, various bacteria, etc. in the gas sucked from the sterilization chamber 219 or the like by the vacuum pump 220 from the conduit between the vacuum pump 220 and the HEPA( Filtered with a High Efficiency Particulate Air Filter) to clean the aspirated gas.

Then, the cleaned gas is sent to the sterilizer decomposition device 222 through the conduit between the sterilizer decomposition device 222 and the exhaust HEPA filter 221, and the sterilizer decomposes the sterilizer contained in the gas. The molecule is decomposed and the decomposed molecule is released to the outside of the sterilization apparatus 100.

Further, the exhaust HEPA filter 221 cleans the gas exhausted from the enrichment furnace 208 through a conduit between the enrichment furnace 208 and the exhaust HEPA filter 221.

This gas is water that has been vaporized by heating the sterilizing agent in the concentrating furnace 208. However, since this gas contains a trace amount of the sterilizing agent, it passes through a conduit between the sterilizing agent decomposing device 222 and the exhaust HEPA filter 221. , To the sterilizer decomposition device 222.

Then, the sterilizer decomposition device 222 decomposes the molecules of the sterilizer contained in the gas, and the decomposed molecules are released to the outside of the sterilizer 100.

Further, the exhaust HEPA filter 221 cleans the vaporized sterilant sent from the exhaust evaporation furnace 224 through the conduit between the exhaust evaporation furnace 224 and the exhaust HEPA filter 221.

Then, the cleaned sterilizing agent (gas) is sent to the sterilizing agent decomposing device 222 through the conduit between the sterilizing agent decomposing device 222 and the exhaust HEPA filter 221, and is converted into the gas by the sterilizing agent decomposing device 222. The molecules of the contained sterilizing agent are decomposed, and the decomposed molecules are released to the outside of the sterilization apparatus 100.

The exhaust HEPA filter 221 cleans the gas sent through the conduit to prevent dust and dirt from accumulating in the sterilant decomposition device 222, thereby extending the product life of the sterilant decomposition device 222.

The sterilizer decomposition device 222 is connected to the exhaust HEPA filter 221 by a conduit. The sterilizer decomposition device 222 decomposes molecules of the sterilizer contained in the gas sent from the conduit between the sterilizer decomposition device 222 and the exhaust HEPA filter 221, and sterilizes the molecules generated by decomposition. Discharge to the outside of the device 100.

The sterilizing agent decomposition device 222 is a device for decomposing the sterilizing agent. For example, when the sterilizing agent is hydrogen peroxide or a hydrogen peroxide solution, vaporized hydrogen peroxide is used by using manganese dioxide as a catalyst. A device that can decompose water and oxygen.

The liquid feeding rotary pump 223 is electrically connected to the exhaust evaporation furnace 224 by a conduit, and is electrically connected to the liquid sensor 204 by a conduit.

The liquid feeding rotary pump 223 sucks all the liquid sterilizing agent in the cartridge 205 by the pump, and feeds all the sterilizing agent fed through the conduit between the liquid sensor 204 and the liquid feeding rotary pump 223. It 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 via a conduit, and is electrically connected to the exhaust HEPA filter 221 via a conduit.

The exhaust evaporation furnace 224 heats all the liquid sterilant in the cartridge 205, which is 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, Evaporate all of the sterilant.

Then, 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.

Further, the expired sterilizing agent remaining in the cartridge 205 can be vacuum-extracted by the vacuum pump 220 through the conduit 3.

The valve (V10) 229 closes the cartridge housing chamber 228 by closing the inside of the cartridge housing chamber 228 (the cartridge housing chamber) when the vacuum pump 220 depressurizes (when the vacuum drying mode is set). It can be a closed enclosure.
FIG. 2 will be described.

An example of the hardware configuration of the cartridge accommodating chamber according to the present invention will be described with reference to FIG.
FIG. 2 is an example of a sectional view of the accommodation chamber 228 of the cartridge according to the present invention.

The cartridge accommodating chamber is a take-out unit for supplying the sterilizing agent in the cartridge 205 to the main body, and 301 is for sending air when the accommodating chamber 228 of the cartridge is dried (when the ventilation drying mode is set). Is a fan, which sends gas into the tube through which the extraction needle passes.

Reference numeral 302 denotes a heater (heating means) capable of heating when the cartridge 205 or the accommodation chamber 228 of the cartridge is dried, and an infrared heater or plasma can be used. The heater portion 302 can heat the sterilant container in contact with the outer surface of the sterilant container, and by heating only during drying, it is possible to promote vaporization of the remaining sterilant.

Therefore, ON/OFF can be controlled so as not to heat the outer surface of the sterilizing agent container except during drying.

A cartridge holder 303 has a position where the cartridge 205 is placed and a moving path.

An opening/closing gate valve (opening blocker) 304 is opened when the inside of the cartridge housing chamber 228 is ventilated by the fan 301 (when the ventilation/drying mode is set), and the inside of the cartridge housing chamber 228 is decompressed by the vacuum pump 220. In this case (when the vacuum drying mode is set), the cartridge housing chamber 228 can be closed to form a closed housing.

By opening and closing the on-off valve 304, the extraction tube is moved up and arranged so as to be in the retracted position as in S401, and the vacuum pump 220 vacuums the drying of the storage chamber and the sterilizing agent whose expiration date has expired. When performing, the control is performed so that the opening of the extraction tube is closed to extract the sterilizing agent. By closing the opening of the extraction tube in this manner, the accommodation chamber 228 of the cartridge can be made a hermetically sealed housing only during the processing of S411 to S415.
The extraction tube is an application example of an opening means for opening the accommodation portion of the cartridge.

A pressure gauge (detection means) 305 monitors the pressure in the accommodation chamber 228 of the cartridge and detects the degree of vacuum arrival inside the accommodation chamber 228.

When vacuum-drying the inside of the cartridge housing chamber 228 with the vacuum pump 220 (when the vacuum drying mode is set), or withdrawing the expired sterilizing agent by vacuum with the vacuum pump 220, a predetermined pressure (for example, 50 Pa) is applied. When it reaches, it is judged that the inside of the accommodation chamber 228 of the cartridge is completely dried. Further, the condition pressure (atmospheric pressure) for releasing the interlock (lock part) is monitored, and it is also monitored whether the cartridge chamber has a positive pressure due to a failure of the valve (V10) 229.

Reference numeral 306 is an exhaust gate valve connected to the conduit 3 between the vacuum pump 220 and the cartridge storage chamber 228. When the fan 301 ventilates the inside of the cartridge storage chamber 228 (when the ventilation/drying mode is set), the inside of the cartridge storage chamber 228 is closed. When the pressure is reduced by the vacuum pump 220 (when the vacuum drying mode is set), the valve 306 is opened to make the accommodation chamber 228 of the cartridge a closed casing.

When the sterilizing agent is dried (when the vacuum drying mode is set) or the expired sterilizing agent is vacuumed in the steps after S411, the sterilizing agent remaining using the conduit 3 branched from the vacuum pump 220 to the storage chamber 228 is used. To dry.

With this branched conduit 3, the vacuum pump 220 used in the sterilization process can be effectively used.

Reference numeral 307 denotes a ventilation port connected to the valve (V10) installed in the conduit 1 and the conduit 2 connected to the exhaust HEPA filter 221, and the gas blown when the inside of the cartridge accommodating chamber 228 is dried is the ventilation port. Through the exhaust HEPA filter 221.

Reference numeral 308 denotes an intake gate valve connected to the conduit 4 between the HEPA filter 210 and the inside of the accommodation chamber 228 of the cartridge when the fan 301 is used for ventilation (when the ventilation/drying mode is set) and the inside of the accommodation chamber 228 of the cartridge is vacuumed. It is closed when the pressure is reduced by the pump 220 (when the vacuum drying mode is set), and the valve 308 is opened when the accommodation chamber 228 of the cartridge is exposed to the atmosphere after drying.

The lock operation control unit (opening/closing control unit) 202 is a unit that locks and unlocks the cartridge mounting door 101, and locks the cartridge mounting door 101 so that the cartridge mounting door 101 is not opened. Further, by opening the cartridge mounting door 101, the cartridge mounting door 101 can be opened.

A lock operation control unit (opening/closing control unit) 202 controls opening/closing of a door that accommodates the sterilizing agent container in the internal space. Alternatively, the motor may automatically control the open/close position of the cartridge mounting door 101 by a motor (not shown) without locking the lock portion.

The cartridge 205 is a sealed container filled with a sterilizing agent (hydrogen peroxide or a liquid of hydrogen peroxide solution).

The filling method of the cartridge 205 includes one in which all the sterilizing agents are contained in one sterilizing agent storage chamber and a cartridge having a plurality of sterilizing agent storage chambers according to the usage amount of the sterilizing agent in the sterilization process. The cartridge 205 shown in FIG. 2 is a cartridge having a plurality of accommodating portions (sterilant accommodating chambers) for accommodating sterilizing agents.

An RF-ID storage medium is provided below the cartridge 205. The storage medium has a serial number as information for identifying the cartridge, a manufacturing date of the cartridge, and the cartridge for the first time. The date and time when the sterilizer was used (first use date and time), the remaining amount of the sterilizing agent filled in the cartridge, and the filling method are stored.

This RF-ID stores data relating to the disposal of the sterilizing agent in the cartridge 205 (serial number, manufacturing date, date of first use, remaining amount of sterilizing agent and/or filling method). Storage medium.

The cartridge 205 is a cartridge in which one outer container contains a sufficient amount of sterilizing agent that can be sterilized multiple times.

As the sterilizing agent storage chamber in the cartridge 205, there is a cartridge having one sterilizing agent storage chamber depending on the case and the usage amount of the sterilizing agent in the sterilization process.

The cartridge 205 stores a chemical solution such as hydrogen peroxide used as a sterilizing agent.

The sterilization apparatus 100 operates so that the extraction needle (injection needle) faces the cartridge and is lowered from the upper part of the cartridge, so that the extraction needle (injection needle) is inserted into the hole of the lid and the hole of the cap.

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 container.

In step S103, by inserting the injection needle into the cartridge, the sterilizing agent in the cartridge can be extracted and the cartridge cannot be taken out.

The extraction needle operation control unit 203 is a unit that operates the extraction needle in order to pierce the extraction needle (injection needle) for sucking the sterilizing agent in the cartridge from the upper portion of the cartridge.

That is, when the extraction needle (injection needle) for sucking the sterilizing agent in the cartridge is pierced from the upper part of the cartridge, the extraction needle (injection needle) should be directed toward the cartridge and operated so as to be lowered from the upper part of the cartridge. Then, the extraction needle (injection needle) can be pierced from the upper part of the cartridge.

When the extraction needle (injection needle) is pulled out from the cartridge, the extraction needle (injection needle) can be pulled out from the cartridge by operating so as to raise the extraction needle (injection needle) above the cartridge.

The extraction needle is a straw (a thin cylinder) for making a hole in the sterilizing agent storage chamber in order to aspirate the sterilizing agent in the cartridge or to discard the unused sterilizing agent which has expired.

The cartridge 205 is fixed at a predetermined position by the cartridge holder 303 when the number of the sterilizing agent storage chamber is one, and when there are a plurality of sterilizing agent storage chambers corresponding to the usage amount of the sterilizing agent in the sterilization process, the cartridge 205 is used by the cartridge holder 303. It is moved and fixed in place.
FIG. 3 will be described.
An example of all steps by the sterilizer according to the present invention will be described with reference to FIG.

Each process (processing) shown in FIG. 3 is performed by controlling the operation of each device in the sterilizer by the arithmetic processing unit 201 of the sterilizer 100.

That is, the arithmetic processing unit 201 of the sterilization apparatus 100 executes a readable and executable program to control the operation of each apparatus and execute each step (process) shown in the drawing.

In the sterilization apparatus 100, when the power is turned on, first, the RF-ID reader/writer 206 (reading unit/writing unit) reads data from the RF-ID (storage medium) provided below the cartridge 205. Read (step S101).
The RF-ID reader/writer 206 is an application example of the reading unit of the present invention.

As the data read from the RF-ID (storage medium) in step S101, the serial number as information for identifying the cartridge, the manufacturing date of the cartridge, and the date and time when the cartridge is first used in the sterilizer. (First use date and time) and the remaining amount and filling method of the sterilizing agent filled in the cartridge.

That is, the RF-ID (storage medium) provided in the cartridge 205 stores in advance the serial number, the manufacturing date, the first use date and time (first use date and time information), the remaining amount of the sterilizing agent, and the filling method. ing.

The RF-ID of the cartridge used for the first time in the sterilizer does not store the date and time of first use (the date and time when the cartridge was first used in the sterilizer). Therefore, the serial number, the manufacturing date, the remaining amount of the sterilizing agent, and the filling method are stored in the RF-ID of the cartridge used for the first time, but the RF-ID of the cartridge used after the second time is stored. The serial number, the date of manufacture, the date and time of first use, the remaining amount of the sterilizing agent, and the filling method are stored in.

Therefore, in step S101, the serial number, the manufacturing date, the remaining amount of the sterilizing agent, and the filling method are read from the RF-ID of the cartridge that is used for the first time. Further, the serial number, the manufacturing date, the date and time of the first use, the remaining amount of the sterilizing agent, and the filling method are read from the RF-ID of the cartridge used for the second time and thereafter.

Therefore, in step S102, even if the first use date and time cannot be read from the RF-ID of the cartridge used for the first time, if the serial number, the manufacturing date, the remaining amount of the sterilizing agent, and the filling method can be read, It is determined that the data has been read from the RF-ID.

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

That is, the cartridge is locked so that it cannot be taken out. In this way, when the data can be read by the reading means, the cartridge 205 is locked so that it cannot be taken out.

Further, for example, it is possible to prevent the cartridge from being taken out by not removing the injection needle inserted into the cartridge.

That is, by inserting the injection needle into the cartridge in step S103, the sterilizing agent in the cartridge can be extracted and the cartridge cannot be taken out.

As described above, when the cartridge is attached to the attachment location of the cartridge in the sterilization apparatus 100, the cartridge is locked (locked) so that it cannot be taken out.

When a cartridge containing a surplus of sterilizing agent is attached to the place where the cartridge is attached in the sterilization apparatus 100, the cartridge is locked (locked) so that it cannot be taken out. You will be able to prevent it from being touched.

As described above, the sterilizer 100 locks the cartridge so that it cannot be taken out when the cartridge is attached to the sterilizer.

Then, the sterilization apparatus 100 determines whether or not there is a predetermined amount (for example, 8 ml) of the sterilizing agent for one sterilization in the cartridge.

Specifically, it is determined whether 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 (sufficient sterilization process can be executed). (Step S104: YES), the process of step S105 is performed. On the other hand, when it is determined that the remaining amount of the sterilizing agent is less than the predetermined amount for one sterilization (for example, 8 ml), the predetermined amount of the sterilizing agent for one sterilization does not exist 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 or not a predetermined period (for example, 13 months) has elapsed from the manufacturing date of the cartridge acquired from the RF-ID.

When it is determined that the predetermined period has elapsed from the manufacturing date (step S105: NO), it is determined that sufficient sterilization processing cannot be executed, and the processing of step S112 is performed. On the other hand, when it is determined that the predetermined period has not passed from the manufacturing date (step S105: YES), it is determined that sufficient sterilization processing can be performed, and the processing of step S106 is performed.

In step S106, the sterilizer 100 determines whether or not a predetermined period (for example, two weeks) has elapsed from the first use date and time acquired from the RF-ID (step S106).

Therefore, for example, in step S101, since the first use date and time cannot be read from the RF-ID of the cartridge that is used for the first time, the first use date and time acquired from the RF-ID in step S106 is used for a predetermined period (for example, It is determined that two weeks have not passed (step S106: YES).

When it is determined that a predetermined period (for example, 2 weeks) has passed from the first use date and time acquired from the RF-ID (step S106: NO), it is determined that sufficient sterilization processing cannot be executed. , The process of step S112 is performed.

On the other hand, when it is determined that the predetermined period (for example, two weeks) has not elapsed (step S106: YES), it is determined that sufficient sterilization processing can be executed, and the processing of step S107 is performed.

Steps S105 and S106 are an application example of the determination unit of the present invention, and it is determined whether the sterilization process using the sterilizing agent stored in the storage unit of the cartridge can be performed according to the information read by the reading unit.

The sterilization apparatus 100 displays the sterilization start screen on the display unit 102 in step S107.

The sterilization apparatus 100 accepts the user's selection of either the "mode for sterilizing sterilizing agent by sterilization" button or the "mode for sterilizing sterilizing agent without concentration" button (step S110), and is selected by the user. A sterilization process (step S111) according to the button mode is performed. Details of the sterilization process (step S111) will be described later with reference to FIG.

In this way, according to the user's instruction, it is possible to switch and use the sterilization processing mode with one sterilizer.

That is, when the "mode for sterilizing concentrated sterilizing agent" button is pressed by the user, the mode for sterilizing by concentrating the sterilizing agent is performed, and the "mode for sterilizing without sterilizing agent" button is pressed. If it does, sterilize without concentrating the sterilant.
Then, the sterilization apparatus 100 ends the sterilization process (step S111).

After performing the sterilization process (step S111), the sterilization apparatus 100 confirms whether the number of times the cartridge can be used has reached the upper limit (step S119).

When the number of times the cartridge can be used reaches the upper limit (step S119: YES), the discharging process (step S114) is performed.

The sterilization apparatus 100 also displays a sterilization start screen on the display unit 102 in step S112. However, the "sterilization start button" in the sterilization start screen displayed in step S112 is displayed so that it cannot be pressed by the user (the "sterilization start button" 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 is a cartridge that has already undergone sterilant 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 undergone sterilizing agent discharge processing, and the serial number acquired from the RF-ID in step S101 is the serial number. 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 undergone sterilizing agent discharge processing. Or not.

Another example of determining whether the cartridge has been subjected to the sterilizing agent discharge processing will also be described here.

When the sterilizing apparatus 100 performs the discharging process in step S114, the sterilizing apparatus 100 records information indicating that the cartridge has already been discharged from the sterilizing agent in the RF-ID of the cartridge 205.

In step S113, the sterilization apparatus 100 determines whether or not the information indicating that the cartridge has already been subjected to the sterilizing agent discharge processing can be read in step S101, and determines that the information can be read. If so (S113: YES), the process proceeds to step S115, and if it is determined that the information could not be read (S113: NO), the process proceeds to step S114.

In this way, it is also possible to determine whether or not the cartridge currently attached to the sterilization apparatus 100 is a cartridge that has already undergone sterilant discharge processing.

If it is determined that the cartridge currently attached to the sterilization apparatus 100 is a cartridge that has already undergone 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 discharged with the sterilizing agent (step S113: NO), all the remaining amount of the liquid sterilizing agent remaining in the cartridge is absorbed, and all the sterilizing agent is removed. The disinfecting process is performed, and the sterilizing agent is discharged to the outside of the sterilizer 100 (step S114), and then the process of step S115 is performed. Details of the sterilizing agent discharging process in step S114 will be described later with reference to FIGS. 4 and 11.

Step S114 is an application example of the discharge process of the hydrogen peroxide aqueous solution in the cartridge. The hydrogen peroxide solution is decomposed using a catalyst to discard the hydrogen peroxide solution remaining in the cartridge.

When it is determined in step S104, step S105, or step S106 that the data read in step S101 satisfies the predetermined condition, the sterilizing agent remaining in the cartridge 205 is discarded by the discharging process.

That is, here, the predetermined condition is a condition that the amount of the sterilizing agent used in one sterilization process remains in the cartridge, a condition that a predetermined time has elapsed from the manufacturing date of the cartridge, and the initial condition of the cartridge. It is a condition including a condition of whether a predetermined time has passed from the date of use.

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 undergone the sterilizing agent discharge process.

In step 115, the sterilizer 100 unlocks the cartridge mounting door 101.
Step S115 is an application example for releasing the lock.

For example, the lock can be released by pulling out the injection needle inserted in the cartridge from the cartridge.

As described above, before the lock is released, all the sterilizing agent in the cartridge 205 is sucked and discarded (S114), so that it is possible to prevent the user from touching the sterilizing agent, which improves safety. ..

In addition, when it is determined in step S102 that the data cannot be read from the RF-ID in step S102 (step S102: NO), the sterilizer 100 has the cartridge installed at the cartridge mounting location in the sterilizer 100. If it is determined that there is not, a cartridge mounting request screen is displayed (step S116).
An "OK" button is displayed on the cartridge mounting request screen.

Then, the sterilizer 100 determines whether or not the "OK" button on the cartridge mounting request screen is pressed by the user (step S117), and if the "OK" button is pressed (YES), the cartridge mounting door 101 is opened. The tablet is unlocked (step S118), and the process returns to step S101. On the other hand, when the "OK" button is not pressed (NO), the cartridge mounting request screen is continuously displayed.

The lock operation control unit 202 operates to unlock and lock the cartridge mounting door 101.
FIG. 4 will be described.

Next, an example of detailed processing of the discharge processing shown in S114 of FIG. 3 will be described with reference to FIG.

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

That is, the arithmetic processing unit 201 of the sterilization apparatus 100 executes a readable and executable program to control the operation of each apparatus and execute each step (process).

First, according to the filling method read in S101, it is determined whether the cartridge 205 used for sterilization has one type of sterilizing agent storage chamber or has multiple sterilizing agent storage chambers (step S423).

Hereinafter, a case where the sterilizing agent storage chamber of the cartridge 205 used for sterilization is of one type (S423: YES) will be described.

The three different drying modes are used to dry the cartridge storage chamber in which the sterilizing agent cartridge is set, the inside of the sterilizing agent cartridge, and the tip of the extraction needle.

The ventilation mode is to blow air inside the cartridge storage chamber to ventilate it, thereby drying the inside of the cartridge storage chamber where a small amount of sterilizing agent that has adhered to the inside of the used sterilization cartridge or the sterilizing agent may have adhered. It is a dry mode.

The vacuum drying mode is a drying mode in which the inside and outside of a used sterilized cartridge and the entire inside of the cartridge housing chamber are completely dried by vacuum-drying the cartridge housing chamber in a closed structure. The dry state of the sterilizing agent is judged by the ultimate vacuum pressure in the cartridge housing chamber. When it reaches a vacuum pressure (for example, 50 Pa) that cannot be reached if it is not dried, it is determined that it has dried. The vacuum drying mode has a longer process time than the ventilation mode, but the drying is more reliable and the safety is higher.

The extraction needle is inserted to the bottom of the cartridge 205 (S401), and the sterilizing agent remaining inside the cartridge 205 is sucked for a specified time. After sucking out the sterilizing agent, the extraction needle moves to the standby position (S405).

As described above, in S401, the storage needle of the cartridge that has not been opened is opened by the extraction needle (opening unit), and the sterilizing agent stored in the storage unit opened in S402 is sucked and discharged (discharge unit). ..

In the ventilation mode, the exhaust gate valve (valve 306) is closed and the valve (V10) 229 is opened.

The fan 301 continues to send air into the accommodation chamber 228 of the cartridge for a predetermined time. The sent gas is sent to the exhaust HEPA filter 221 through the ventilation port 307 and the valve (V10) 229, and the sterilant decomposition device 222 decomposes and decomposes the molecules of the sterilizer contained in the gas. The latter molecule is released out of the sterilizer 100.

In the vacuum drying mode, after the sterilizing agent is sucked out, the on-off valve 304 and the valve (V10) 229 are closed to form a closed casing. The vacuum pump 220 reduces the pressure inside the cartridge accommodation chamber 228. The pressure inside the accommodation chamber 228 of the cartridge is monitored by the pressure gauge 305. It is detected that the pressure in the cartridge storage chamber 228 has been reduced to a pressure (for example, 50 Pa) at which it can be determined that there is no liquid in the cartridge storage chamber 228, and the vacuum pump 220 is stopped. The on-off valve 304 and the valve (V10) 229 are opened to return the inside of the accommodation chamber 228 of the cartridge to the atmospheric pressure so that the interlock can be released.

The pressure gauge 305 constantly monitors whether the pressure in the cartridge accommodation chamber 228 is positive pressure. When positive pressure is detected, it is determined that a problem has occurred in any of the exhaust paths, and an error is issued. ..

Drying efficiency can be improved by heating the inside of the cartridge housing chamber or the sterilizing agent cartridge with an infrared heater or plasma.
Detailed steps will be described from here.

In step S401, in accordance with an instruction from the arithmetic processing unit (201) (control unit) of the sterilizer, the extraction position inside the sterilant container storage unit where the sterilant can be extracted in order to extract the sterilant from the sterilant container. The stop position of the extraction pipe is moved downward in the direction of gravity so that

Here, as shown in FIG. 10, in order to extract the sterilizing agent from the sterilizing agent container, the sterilizing agent storing unit is located inside the sterilizing agent storing unit so that the sterilizing agent can be extracted. The stop position may be moved up in the direction of gravity and arranged.

In addition, here, in consideration of safety, the tip of the extraction tube pierces through the sealing material, etc., at a predetermined location of the sterilizing agent container that is sealed at the time of new product, and the sterilizing agent container is opened (penetrated), The sterilant inside the sterilant container is ready to be extracted from the extraction tube. Therefore, at this point, the sterilizing agent container which has been sealed up with the sealing material up to this point has a portion where the inside is open.

In step S402, according to an instruction from the arithmetic processing unit (201) (control unit) of the sterilizer, the extraction tube is inserted into the sealed sterilizing agent container to extract the sterilizing agent from the sterilizing agent container (extraction). means).

First, in the sterilization apparatus 100, the liquid feed rotary pump 223 sucks all the liquid sterilizing agents in the cartridge 205 by the pump, and all of them are sent through the conduit between the liquid sensor 204 and the liquid feed rotary pump 223. The sterilizing agent is sent to the exhaust evaporation furnace 224 through a conduit between the liquid feed rotary pump 223 and the exhaust evaporation furnace 224 (step S402).

In the sterilization apparatus 100, the sterilizing agent for all liquids (sterilizing agent stored in the exhaust evaporation furnace 224) is 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 sterilizing agent. Then, the vaporized sterilizing agent is sent to the exhaust HEPA filter 221 through the conduit between the exhaust HEPA filter 221 and the exhaust evaporation furnace 224 (step S403).

Here, the heater provided in the exhaust evaporation furnace 224 is heated to a temperature higher than the boiling point of the sterilizing agent (hydrogen peroxide) (the boiling point of hydrogen peroxide is 141 degrees), for example. Therefore, the exhaust evaporation furnace 224 completely vaporizes the sterilizing agent.

Then, the sterilizer 100 cleans the vaporized sterilant sent through the conduit between the exhaust vaporization furnace 224 and the exhaust HEPA filter 221 by the exhaust HEPA filter 221, and cleans the gas (sterilized). (Including the agent) is sent to the disinfectant disintegrator 222 through a conduit between the disinfectant disintegrator 222 and the exhaust HEPA filter 221.

Then, the sterilizing agent decomposition device 222 decomposes molecules of the sterilizing agent contained in the gas sent from the conduit between the sterilizing agent decomposition device 222 and the exhaust HEPA filter 221, and decomposes and produces molecules. Is discharged to the outside of the sterilizer 100 (step S404).

In step S405, the sterilant is not extracted from the sterilant container according to an instruction from the arithmetic processing unit (201) (control unit) of the sterilizer. Place the stop position by moving upward in the direction of gravity.

Here, as shown in FIG. 10, the stop position of the sterilizing agent container may be moved downward in the direction of gravity so that the sterilizing agent container can be replaced.

Further, when the stop position of the extraction tube is moved upward in the gravity direction and arranged, the open portion of the sterilizing agent container formed in S401 is not sealed by the extraction tube, and the sterilizing agent container is The container will be open with residual sterilant remaining inside.

In step S406, a drying mode for drying (drying means) the internal space of the storage chamber in which the sterilizing agent container extracted in step S402 is stored is selected according to an instruction from the arithmetic processing unit (201) (control unit) of the sterilizer. To do. If the ventilation mode has been set in advance, the process proceeds to S407.
If the vacuum drying mode has been set in advance, the process proceeds to S411.

If the process proceeds to S407 or S411, after extracting the sterilizing agent in S402 and then arranging the sterilizing agent in the retracted position in S405, the extraction port of the sterilizing agent container into which the extraction tube is inserted A) to dry the sterilant remaining in the sterilant container.

In addition, it is desirable to start the drying for a predetermined time (for example, 5 seconds before) from the state where the opening of the sterilizing agent container is sealed by the extraction tube in advance. The risk that the remaining sterilizing agent will spontaneously evaporate and diffuse into the storage chamber 228 by drying (ventilating or vacuuming) the storage chamber 228 in a state where the existing portion is not sealed by the extraction pipe is further reduced. To do.

When the process further proceeds to S407 or S411, the heater section 302 heats the outer surface of the sterilizing agent container (about 50° C.) and dries the remaining sterilizing agent to shorten the drying time.

In step S407, the exhaust gate valve (valve 306) connected to the conduit 3 between the vacuum pump 220 and the vacuum pump 220 is closed, and the vacuum pump 220 not used in the ventilation mode is shut off.

In step S408, the valve (V10) installed in the conduit 1 and the conduit 2 connected to the exhaust HEPA filter 221 is opened, and the gas blown when the inside of the accommodation chamber 228 of the cartridge is dried is supplied to the ventilation port conduit 2 Through the exhaust HEPA filter 221.

In step S409, in order to dry the inside of the storage chamber 228, the fan 301 sends air into the storage chamber 228.

In step S410, air is sent for a predetermined time (for example, 3 minutes) in which the inside of the storage chamber 228 is considered to be completely dried, and then the fan is stopped.

In step S411, the exhaust gate valve (valve 306) that connects the storage chamber 228 and the vacuum pump 220 is opened in order to vacuum dry the inside of the storage chamber 228.

In step S412, the opening/closing valve 304 and the valve (V10) are closed in order to vacuum-dry the accommodation chamber 228 as a closed casing.

The valve 308 (open/close valve) is closed after vacuum drying until the inside of the storage chamber 228 is returned to the atmosphere. (S415)

In step S413, the inside of the accommodation chamber 228 is decompressed by the vacuum pump 220. By decompressing the storage chamber of 228 in this manner, the sterilizing agent stored in the opened storage portion can be discharged.

In step S414, according to the instruction from the arithmetic processing unit (201) (control unit) of the sterilizer, it is determined whether or not the vacuum pump 220 finishes drying the storage chamber 228 in accordance with the degree of vacuum reached by the pressure gauge 305. Yes (end judgment means). When it is determined that the pressure inside the storage chamber 228 has reached 50 Pa, the drying is terminated and the process proceeds to S415.

In step S415, the valve 308 (opening/closing valve) that connects the storage chamber 228 and the HEPA filter 210 is opened in order to return the inside of the storage chamber 228 that has become a vacuum to the atmosphere.

In step S416, the lock operation control unit 202 controls the door 101 not to open during the drying process and the lock operation control after drying, according to an instruction from the arithmetic processing unit (201) (control unit) of the sterilizer. The unit 202 controls the door 101 to open.

Next, a case where the cartridge 205 used for sterilization has a plurality of sterilizing agent storage chambers (S423: NO) will be described.
The cartridge 205 is moved to a predetermined position (initial position) (S420).

The extraction needle is inserted to the bottom of the cartridge 205 (S401), and the residual sterilant remaining inside the cartridge 205 is sucked for a specified time. After sucking out the residual sterilizing agent, the extraction needle moves to the standby position (S405).

When there are a plurality of sterilizing agent storage chambers, S401 to S405 are repeated until the sterilizing agent in all the sterilizing agent storage chambers is absorbed.

At this time, after sucking the sterilizing agent from the sterilizing agent storage chamber, the cartridge holder 303 moves and fixes the cartridge 205 to a predetermined position (S422). In this manner, the process of opening the accommodation part of the cartridge and sucking out the sterilizing agent accommodated in the opened accommodation part is performed for each unopened accommodation part.

Then, the sterilizing agent contained in the opened container is sucked out (sucking means) and discharged. When the sterilizing agent is sucked from all the sterilizing agent accommodating chambers (S421: YES), the sterilizing apparatus 100 sends all the sterilizing agent through the conduit between the liquid feeding rotary pump 223 and the exhaust vaporizing furnace 224 by the exhaust vaporizing furnace 224. The liquid sterilant (the sterilant stored in the exhaust evaporation furnace 224) is heated by a heater provided in the exhaust evaporation furnace 224 to vaporize all of the sterilant. Then, the vaporized sterilizing agent is sent to the exhaust HEPA filter 221 through the conduit between the exhaust HEPA filter 221 and the exhaust evaporation furnace 224 (step S403).

Subsequent processing is the same as the case where the cartridge 205 used for sterilization has one type of sterilant storage chamber.
FIG. 5 will be described.

Next, an example of detailed processing of the sterilization processing shown in S111 of FIG. 3 will be described with reference to 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 device in the sterilizer by the arithmetic processing unit 201 of the sterilizer 100.

That is, the arithmetic processing unit 201 of the sterilization apparatus 100 executes a readable and executable program to control the operation of each apparatus and execute each step (process).

When starting the step shown in step S501 shown in FIG. 5, all valves (valve (V1) 211, valve (V2) 215, valve (V3) 212, valve (V4) 213, valve (V9) of the sterilizer 100 are started. ) 227 and the valve (V7) 226) are in a closed state.

First, in step S501, the sterilizer 100 operates the pneumatic vacuum pump (exhaust unit) 220 to suck the gas in the sterilization chamber 219, and the atmospheric pressure in the sterilization chamber 219 becomes a predetermined atmospheric pressure (for example, 45 Pascal). Perform the pre-sterilization process in which the pressure is reduced to a certain level. Detailed processing of the pre-sterilization process will be described later with reference to FIG.

The vacuum pump 220 makes the sterilization chamber 219 a vacuum environment when sterilizing an object to be sterilized using a sterilizing agent.

Then, in step S502, the sterilization apparatus 100 puts a sterilizing agent into the sterilization chamber 219 to perform a sterilization process for sterilizing the object to be sterilized. Detailed processing of the sterilization process will be described later with reference to FIG. 7.

Next, the sterilization apparatus 100 performs the process of the ventilation process for removing the sterilizing agent contained in the sterilization chamber 219 and the vaporization furnace 216 in step S503. Detailed processing of the ventilation process will be described later with reference to FIG.
FIG. 6 will be described.

Next, an example of detailed processing of the pre-sterilization step shown in S501 of FIG. 5 will be described with reference to FIG.
FIG. 6 is a diagram showing an example of detailed processing of the pre-sterilization step shown in S501 of FIG.

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

That is, the arithmetic processing unit 201 of the sterilization apparatus 100 executes a readable and executable program to control the operation of each apparatus and execute each step (process).

First, the sterilization apparatus 100 operates the vacuum pump 220 to start the process of sucking the gas in the sterilization chamber 219 (step S601).

Then, in step S602, the sterilization apparatus 100 determines whether the pressure (atmospheric pressure) in the sterilization chamber 219 is reduced to a predetermined atmospheric pressure (for example, 45 Pascal).

Specifically, it is determined whether the pressure (atmospheric pressure) in the sterilization chamber 219 measured by the pressure sensor provided in the sterilization chamber 219 is reduced to a predetermined atmospheric pressure (for example, 45 Pascal).

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

On the other hand, when 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 Pascal) (YES), the vacuum pump 220 is continuously operated to perform sterilization. The gas in the chamber 219 is sucked, and the process of step S502 is started.
FIG. 7 will be described.
FIG. 7 is an example of detailed processing of the sterilization step shown in S502 of FIG.

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

The arithmetic processing unit 201 of the sterilization apparatus 100 executes a readable and executable program to control the operation of each apparatus and execute each step (process).

The sterilization apparatus 100 opens the valve (V5) 217 to connect the conduit between the sterilization chamber 219 and the vaporization furnace 216 (step S701).

Accordingly, since the vacuum pump 220 is currently sucking the gas in the sterilization chamber 219 to reduce the pressure, the pressure reduction in the sterilization chamber 219 and the vaporization furnace 216 is started (step S702).

Then, the sterilizer 100 determines which of the "mode for sterilizing by concentrating the sterilizing agent" button and the "mode for sterilizing without concentrating the sterilizing agent" button is pressed in step S110 (step S703). ..

When it is determined that the "mode for concentrating and sterilizing sterilant" button is pressed (YES), the process of step S704 is performed, and it is determined that the "mode for sterilizing without sterilizing agent sterilization" button is pressed. If (NO), the process of step S728 is performed.

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

In step S704, the sterilizer 100 operates the liquid feed rotary pump 207 to suck up a predetermined amount (for example, 2 ml) of the sterilizing agent in the cartridge 205.

Then, the sucked-up predetermined amount of the sterilizing agent is put into the concentrating furnace 208. The predetermined amount of the sterilizing agent sucked in here is, for example, an amount capable of making the space in the sterilization chamber 219 saturated with the sterilizing agent.

Then, in step S705, the sterilization apparatus 100 writes the remaining amount and the filling method of the sterilizing agent remaining in the cartridge 205 into the RF-ID of the cartridge 205 attached to the attachment location of the cartridge.

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 and the filling method of the sterilizing agent in the cartridge 205 read in step S101 is set as RF-ID. Remember.

That is, a value obtained by subtracting the cumulative total amount of the sterilant absorbed from the cartridge 205 in step S704 from the remaining amount and filling method of the sterilant in the cartridge 205 read in step S101 is stored in the RF-ID in step S705. To do.

If the first use date and time (the date and time when the cartridge was first used in the sterilizer) read from the RF-ID in step S101 does not include information indicating the date and time, the sterilizer 100 determines that the cartridge is currently used. It is determined that the sterilizer was used for the first time.

That is, the sterilizer 100 determines that the cartridge is used for the first time in the sterilizer this time when the first use date and time cannot be read from the RF-ID in step S101.

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 always heats the heater provided in the concentration furnace 208 when the power is supplied to the sterilizer 100, the sterilizing agent placed in the concentration furnace 208 in step S704 is Water is heated by the heat of the heater and the water contained in the sterilizing agent in the concentrating furnace 208 is evaporated (step S706).

The reason why the heater provided in the concentrating furnace 208 is always heated when the sterilizer 100 is turned on is that the sterilizer can be used immediately in the operating room at any time. is there.

Thus, by eliminating the time required to heat the heater of the concentrating furnace, the sterilizer can be used immediately at any time.

That is, when the sterilizing agent is hydrogen peroxide solution (also referred to as hydrogen peroxide solution), the heater provided in the concentrating furnace 208 is heated here specifically at, for example, 80 degrees. As a result, mainly water can be 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 sterilizing agent was put into the concentration furnace 208 in step S704.

When it is determined that the predetermined time has passed since the sterilizing agent was put in the concentrating furnace 208 (YES), the process of step S708 is performed.

On the other hand, when the predetermined time has not passed since the sterilizing agent was put in the concentrating furnace 208 (NO), the sterilizing agent is continuously left 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 Pascal).

When the atmospheric pressure in the sterilization chamber 219 and the vaporization furnace 216 is reduced to a predetermined atmospheric pressure (YES), the sterilization apparatus 100 sets the valve (V3) 212 and the valve (V4) 213 in step S709. And the valve (V3) 212 for opening for a predetermined time and the valve (V4) 213 for a predetermined time (for example, 3 seconds) to close the valve (V3) 212 and the valve (V4) 213. Decompress the inside.

On the other hand, when the atmospheric pressure in the sterilization chamber 219 and the vaporization furnace 216 is not reduced to a predetermined atmospheric pressure (NO), the sterilizing agent is continuously concentrated.

Then, next, in step S710, the sterilizer 100 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), so that the sterilizing agent in the concentrating furnace 208 is in the measuring tube. It is sucked into 214 and enters (step S710).

Here, by opening and closing the valve (V1) for a predetermined time, the sterilizing agent contained in the concentrating furnace 208 is sucked into the measuring pipe 214 and enters. Here, not only the sterilizing agent but also the air in the concentrating furnace 208 is sucked into the measuring pipe 214 together.

Then, even after this, the interior of the sterilization chamber 219 is depressurized by the vacuum pump 220.

Therefore, the air pressure in the sterilization chamber 219 becomes lower than the air pressure in the measuring pipe. Specifically, the atmospheric pressure in the sterilization chamber 219 is about 400 Pa, and the atmospheric pressure in the measuring pipe is a value at atmospheric pressure (101325 Pa). The reason why the atmospheric pressure in the measuring pipe 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 pipe 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 then air in the measuring pipe (excluding a 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.

Next, the sterilizer 100 determines whether the atmospheric pressure in the sterilization chamber 219 and the vaporization furnace 216 is reduced to a predetermined atmospheric pressure (for example, 80 Pa), and when it is determined that the atmospheric pressure is reduced (step 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 pipe 214 is sucked into the vaporizing furnace 216 and vaporized in the vaporizing furnace 216.
Here, the sterilizing agent is vaporized in the vaporization furnace as molecular clusters.

The sterilization chamber has a larger volume than the vaporization furnace, and the sterilizing agent is vaporized as molecular clusters in the vaporization furnace.

This is because the volume of the vaporization furnace is smaller than that in the sterilization chamber, so that the distance between the molecules of the sterilizing agent in the sterilization chamber is short and molecular clusters are easily formed by intermolecular force.

At this time also, the vacuum pump 220 continues to suck the gas in the sterilization chamber 219 to reduce the pressure in the sterilization chamber 219. The atmospheric pressure rises in the vaporization furnace 216 into which the sterilizing agent in the measuring pipe 214 is sucked.
That is, the atmospheric pressure in the vaporization furnace 216 becomes higher than the atmospheric pressure in 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 whether a predetermined time has elapsed since the valve (V2) 215 was opened in step S714. (Step S715), if the atmospheric pressure in the sterilization chamber 219 is reduced to a predetermined atmospheric pressure (for example, 50 Pa), and if a predetermined time has elapsed since the valve (V2) 215 was opened in Step S714 (YES). The suction (vacuum drawing) in the sterilization chamber 219 by the 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 pressure inside the sterilization chamber 219 (for example, 50 Pa) is lower than the pressure inside the vaporization furnace 216.

In the sterilizing agent diffused here, the molecular clusters in the vaporization furnace are further subdivided, and the sterilizing agent can be further diffused into the sterilization chamber, so that the sterilizing action can be enhanced.

Further, it becomes possible to effectively sterilize a small lumen or the like of the object to be sterilized.

Then, in step S717, it is determined whether a predetermined time (for example, 330 seconds) has elapsed after opening the valve (V5) 217, and a predetermined time (for example, 330 seconds) has elapsed after opening the valve (V5) 217. When it is determined that the time has elapsed (step S718: YES), the valve (V9) 227 is opened (step S719).

As a result, the atmospheric pressure inside the vaporization furnace 216 and the sterilization chamber 219 is lower than the atmospheric pressure outside the sterilization apparatus 100, so that the outside air (air) outside the sterilization apparatus 100, which has been cleaned by the intake HEPA filter, is used. , Sucked into the vaporization 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 fed into the sterilization chamber 219 by the air sent into the vaporizing furnace 216. The sterilizing effect on the object to be sterilized in the sterilization chamber 219 is enhanced.

That is, for example, as a result, the sterilizing action is enhanced for a portion that is difficult to sterilize, such as the back of a thin tube to be sterilized.

Then, in step S719, the sterilizer 100 opens the valve (V7) 226 when a predetermined time (15 seconds) elapses after opening the valve (V9) 227, and is further cleaned by the HEPA filter 210. Outside air (air) outside the sterilization apparatus 100 is sucked into the sterilization chamber 219.

This is because the air pressure inside the sterilization chamber 219 and the vaporization furnace 216 is lower than the air pressure outside the sterilization device 100, so the outside air (air) outside the sterilization device 100 is sucked into the sterilization chamber 219.

As a result, the sterilizing action is enhanced for a portion that is difficult to sterilize (especially the lumen portion) such as the inner part of a thin tube to be sterilized.

Next, the sterilizer 100 determines whether the inside of the sterilization chamber 219 and the vaporization furnace 216 has risen to atmospheric pressure, and when it determines that the atmospheric pressure has risen (step S721: YES), the valve (V2) 215 is closed (step S722).

Next, the sterilizer 100 closes the valve (V7) 226 (step S723), and restarts suction (vacuum drawing) in the sterilization chamber 219 by the vacuum pump 220 (step S724).

As a result, the outside air (air) outside the sterilizer 100, which has been cleaned by the HEPA filter 210, is sucked into the vaporization furnace 216 through the conduit that connects the HEPA filter 210 and the vaporization furnace 216.

Then, the sterilizing agent filled in the vaporizing furnace 216 as a gas by the air sent into the vaporizing furnace 216 and the sterilizing agent adhering to the inner surface of the vaporizing furnace 216 are further stored in the sterilization chamber 219. Sent in.

As a result, the sterilization action is enhanced for a portion (especially the lumen portion) that is difficult to sterilize, such as the inner part of a thin tube to be sterilized, and the sterilizing agent in the vaporization furnace 216 can be effectively reduced. ..

Then, the sterilizer 100 closes the valve (V9) 227 after a predetermined time (for example, 15 seconds) after restarting suction (vacuum drawing) in the sterilization chamber 219 by the vacuum pump 220 in step S724 (step S724). S725).

At this time as well, suction (vacuum drawing) in the sterilization chamber 219 is continuously performed by the vacuum pump 220, and in step S725, the sterilization chamber 219 and the vaporization furnace 216 are closed, and the sterilization chamber 219 and the vaporization furnace are closed. The inside of 216 will be decompressed (step S726).

Next, the sterilizer 100 determines whether or not the processes of steps S702 to S726 have been executed a predetermined number of times (for example, four times) (step S727), and if it is determined that the processes have been executed (YES), the process of step S503 is executed. Perform processing.

On the other hand, if it is determined that the processing from step S702 to step S726 has not been executed the predetermined number of times, the processing after step S702 is performed again.

In this way, by executing the processing of steps S702 to S726 a predetermined number of times, the effect of the sterilization action on the object to be sterilized is enhanced, and the object to be sterilized can be sufficiently sterilized.

Next, a case will be described in which it is determined in step S703 that the “mode for sterilizing without sterilizing agent sterilization” button is pressed (the case of performing sterilization processing without concentrating the sterilizing agent).

When it is determined in step S703 that the "mode for sterilizing without sterilizing agent sterilization" button is pressed (NO), the sterilization apparatus 100 determines that the pressure inside the sterilization chamber 219 and the vaporization furnace 216 is a predetermined pressure (for example, , 1000 Pa) is determined (step S728).

Then, when it is determined that the atmospheric pressure in the sterilization chamber 219 and the vaporization furnace 216 has been reduced to a predetermined atmospheric pressure (for example, 100 Pa) (step S728: YES), the sterilization apparatus 100 sets the liquid feeding rotary pump 207 to the predetermined value. It operates and sucks a predetermined amount (for example, 2 ml) of the sterilizing agent in the cartridge 205. Then, the sucked-up predetermined amount of the sterilizing agent is put into the concentrating furnace 208 (step S729).

The predetermined amount of the sterilizing agent sucked in here is, for example, an amount capable of making the space in the sterilization chamber 219 saturated with the sterilizing agent.

Next, in step S730, the sterilization apparatus 100 writes the remaining amount and filling method of the sterilizing agent remaining in the cartridge 205 in the RF-ID of the cartridge 205 attached to the attachment location of the cartridge. Specifically, the value obtained by subtracting the predetermined amount (for example, 2 milliliters) sucked from the cartridge 205 in step S729 from the remaining amount and filling method of the sterilizing agent in the cartridge 205 read in step S101 is set as RF-ID. Remember.

Further, when the predetermined amount per one time when the sterilizing agent is sucked from the cartridge 205 is, for example, 2 milliliters, it is determined in step S727 that the predetermined number of times has not been executed (NO), and the processing in step S702 and subsequent steps may be performed. For example, in the case of the second time, since the total amount of the sterilizing agent sucked from the cartridge 205 in step S729 is (2 ml (predetermined amount)×second time=) 4 ml, the cartridge 205 read in step S101 A value obtained by subtracting 4 ml, which is the total amount of the sterilant absorbed from the cartridge 205 in step S729, is stored in the RF-ID in step S730, based on the remaining amount and filling method of the sterilant.

That is, a value obtained by subtracting the total amount of the sterilant absorbed from the cartridge 205 in step S729 from the remaining amount and filling method of the sterilant in the cartridge 205 read in step S101 is stored in the RF-ID in step S730. To do.

Further, in step S730, if the first use date and time (the date and time when the cartridge was first used in the sterilizer) read from the RF-ID in step S101 does not include information indicating the date and time in the sterilizer 100, This time, it is determined that the cartridge has been used for the first time in the sterilizer. That is, the sterilizer 100 determines that the cartridge is used for the first time in the sterilizer this time when the first use date and time cannot be read from the RF-ID in step S101.

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 the sterilization apparatus 100 will perform the process of step S709 already demonstrated after performing the process of step S730.

In step S728, when the pressure inside the sterilization chamber 219 reaches a predetermined atmospheric pressure (for example, 1000 Pa), the sterilizing agent is started to be sucked in in step S729, and is below 500 Pa by the time the sterilizing agent is sucked in in step S729, so that the efficiency is efficiently increased in step S709. Can be moved to.

In this way, after the atmospheric pressure in the sterilization chamber 219 and the vaporization furnace 216 is reduced to a predetermined atmospheric pressure (for example, 1000 Pascal) at which the pressure reduction in the measuring pipe 214 is started, a predetermined amount of the sterilizing agent sucked up. Is put in the concentration furnace 208, the pressure inside the measuring pipe 214 can be immediately reduced in step S709, and then the sterilizing agent in the concentration furnace 208 is put into the measuring pipe in step S710. It is possible to add the sterilizing agent immediately.

That is, the sterilizing agent can be put into the measuring pipe 214 without being substantially concentrated in the concentrating furnace 208.
FIG. 8 will be described.

Next, an example of detailed processing of the ventilation step 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 step shown in S503 of FIG.

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

That is, the arithmetic processing unit 201 of the sterilization apparatus 100 executes a readable and executable program to control the operation of each apparatus and execute each step (process) shown in the drawing.
First, the sterilizer 100 opens the valve V(7) 226 (step S801).

Then, the sterilization apparatus 100 continues to perform suction (vacuum drawing) inside the sterilization chamber 219 by the vacuum pump 220 (step S802).

After opening the valve V(7) 226 in step S801, suction (vacuum drawing) is performed in the sterilization chamber 219 by the vacuum pump 220 in step S802, and when a predetermined time has elapsed (step S803: YES), the valve V(7) is opened. ) 226 is closed (step S804), and suction (vacuum drawing) in the sterilization chamber 219 by the vacuum pump 220 is continued.
As a result, the pressure inside the sterilization chamber 219 is reduced.

Next, when the pressure in the sterilization chamber 219 is reduced to a predetermined atmospheric pressure (50 Pa) (step S806: YES), the sterilizer 100 opens the valve V(7) 226 (step S807).

As a result, the outside air (air) outside the sterilizer 100, which has been cleaned by the 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 the outside air (air) outside the sterilization device 100 is sucked into the sterilization chamber 219.

Then, the sterilization apparatus 100 determines whether the atmospheric pressure in the sterilization chamber 219 has risen to the atmospheric pressure, and when it is determined that the atmospheric pressure in the sterilization chamber 219 has risen to the atmospheric pressure (step S808: YES), It is determined whether the processes of steps S804 to S808 have been performed a predetermined number of times (for example, four times) (step S809), and if the processes of steps S804 to S808 have been performed a predetermined number of times (for example, four times) (YES), The valve V(7) 226 is closed (step S810), and the ventilation process ends.

On the other hand, if the processing of steps S804 to S808 has not been performed a predetermined number of times (for example, four times) (NO), the processing of step S804 is performed again.

As a result, the sterilant attached to the surface of the sterilization chamber 219 and the sterilant remaining in the sterilization chamber 219 as a gas are sucked by the vacuum pump 220. The gas (including the sterilizing agent) sucked in here passes through the exhaust HEPA filter 221, the sterilizing agent is decomposed by the sterilizing agent decomposition device 222, and the decomposed molecules are released to the outside.
FIG. 9 will be described.

This is a case where the cartridge accommodating chamber (sterilizing agent supply mechanism) is separated from the sterilization device and configured as separate devices. This is a suitable configuration when the sterilizing agent container is a large container (for example, 1 L or more).
900 is a sterilizing agent supply device.
Next, a second embodiment of S114 will be described with reference to FIG.

Differences between the second embodiment and the first embodiment will be described. The same processes as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted here.

Next, with reference to FIG. 11, an example of detailed processing of the discharge processing shown in S114 of FIG. 3 will be described.
FIG. 11 shows an example of a case where the discharge process is performed by vacuum extraction.

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

That is, the arithmetic processing unit 201 of the sterilization apparatus 100 executes a readable and executable program to control the operation of each apparatus and execute each step (process).

First, the sterilizer determines, according to the filling method read in step S101, whether the cartridge 205 used for sterilization has one sterilizing agent storage chamber or a type having multiple sterilizing agent storage chambers (step). S423)

Hereinafter, a case where the cartridge 205 used for sterilization has one type of sterilant storage chamber will be described.

The extraction needle is inserted into the cartridge 205 (S1104), and a hole is made in the sterilizing agent storage chamber in the cartridge 205. After making a hole in the sterilizing agent storage chamber in the cartridge 205, the extraction needle moves to the standby position (S405).

Thereafter, in the vacuum drying mode (S411 to S415), the cartridge accommodating chamber in which the sterilizing agent cartridge is set, the inside of the sterilizing agent cartridge, and the tip of the extraction needle are dried at three locations.

When the discharge process is performed by vacuum extraction, regardless of the number of sterilizing agent storage chambers in the drying mode, the vacuum drying mode (S411 to S415) allows the sterilizing agent cartridge to be set in the cartridge storing chamber and the sterilizing agent cartridge to be extracted. Dry the three points on the tip of the needle.

Next, a case where the cartridge 205 used for sterilization has a plurality of sterilizing agent storage chambers (S423: NO) will be described.

The extraction needle is inserted into the accommodating portion of the cartridge 205 and opened (S1101), and a hole is formed in the sterilizing agent accommodating chamber in the cartridge 205. After making a hole in the sterilizing agent storage chamber in the cartridge 205, the extraction needle moves to the standby position (S405).

It is confirmed whether or not all the sterilizing agent storage chambers have been perforated (S1102), and when all the sterilizing agent storage chambers have not been perforated (S1102: NO), the cartridge holder 303 moves the cartridge 205 to a predetermined position. And fix it (S1103).

After making holes in all of the sterilizing agent storage chambers (S1102: YES), vacuum drying mode processing (S411 to S415) is performed. Then, the interlock can be unlocked (S416).

100 Sterilizer 101 Sterilizing agent cartridge mounting door 102 Display 103 Printing section 104 Sterilization chamber door 201 Processing unit (MPU)
202 Lock Operation Control Unit 203 Extraction Needle Operation Control Unit 204 Liquid Sensor 205 Sterilizing Agent Container (Sterile Agent Cartridge)
206 RF-ID reader/writer 207 Liquid feed rotary pump 208 Concentrator 209 Air feed pressurizing pump 210 Intake HEPA filter 211 Open/close valve (V1)
212 Open/close valve (V3)
213 Open/close valve (V4)
214 Measuring pipe 215 Open/close valve (V2)
216 Vaporization furnace 217 Open/close valve (V5)
219 Sterilization room (vacuum chamber)
220 Pneumatic vacuum pump 221 Exhaust HEPA filter 222 Sterilizer decomposition device a
223 Liquid feed rotary pump 224 Exhaust evaporation furnace 226 Open/close valve (V7)
227 Open/close valve (V9)
228 Cartridge chamber 229 Open/close valve (V10)
301 Fan 302 Heater 303 Cartridge Holder 304 Openable Gate Valve 305 Pressure Gauge 306 Exhaust Gate Valve 307 Ventilation Port 308 Intake Gate Valve

Claims (5)

A sterilizing device for sterilizing an object to be sterilized by using a sterilizing agent stored in a storage portion of a cartridge having a plurality of storing portions for storing the sterilizing agent
An opening means for opening the accommodation portion of the cartridge,
Discharge means for discharging the sterilizing agent stored in the storage section opened by the opening means,
Sterilization in which the opening means opens an unopened accommodation part of the plurality of accommodation parts, and the discharging means sterilizes the sterilization object stored in the opened accommodation part with the sterilizing object. Control means for controlling the discharge operation without using it for processing,
A sterilizer comprising: The control means performs an operation in which the unsealing means opens an unopened housing portion of the plurality of housing portions, and the discharging means discharges the sterilizing agent stored in the opened housing portion. The sterilizing apparatus according to claim 1, wherein the sterilizing apparatus is controlled so as to be repeatedly performed with respect to the container that is not opened. The control means performs an operation in which the unsealing means opens an unopened housing portion of the plurality of housing portions, and the discharging means discharges the sterilizing agent stored in the opened housing portion. The sterilizing apparatus according to claim 1 or 2, wherein the sterilizing apparatus is controlled so as to be repeatedly performed for all the storage units that are not opened. A method for controlling a sterilizing apparatus, which comprises sterilizing an object to be sterilized using a sterilizing agent accommodated in the accommodating portion of a cartridge having a plurality of accommodating portions accommodating the sterilizing agent,
An opening step of opening the accommodation portion of the cartridge,
A discharge step of discharging the sterilizing agent stored in the storage section opened by the opening step;
Sterilization for sterilizing the object to be sterilized with the sterilizing agent stored in the opened storage portion in the discharging step in the opening step for opening an unopened storage portion among the plurality of storage portions. A control step of controlling the discharge operation without using it for the treatment,
A control method comprising: Performing a sterilization process of sterilizing an object to be sterilized by using a sterilizing agent stored in a cartridge having a plurality of storing sections for storing the sterilizing agent, and controlling a sterilizing apparatus including an opening means and a discharging means. Is a program for
On the computer,
An opening function for causing the opening means to open the accommodation portion of the cartridge,
A discharging function for discharging the sterilizing agent stored in the storage section opened by the opening section to the discharging section;
Sterilization for unsealing the unopened accommodating portion of the plurality of accommodating portions by the opening means, and sterilizing the sterilizing object stored in the opened accommodating portion by the discharge means for sterilizing the object to be sterilized. A control function to discharge without using it for treatment,
A program characterized by realizing.

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