Multi-cabinet hydrogen peroxide low temperature plasma sterilizer and management traceability method thereof

Abstract

The application provides a multi-cabinet hydrogen peroxide low-temperature plasma sterilizer and a management tracing method thereof, and relates to the technical field of plasma sterilizers.The multi-cabinet hydrogen peroxide low-temperature plasma sterilizer comprises a sterilization cabin, a vacuum power system, a back emptying system and a sterilization agent filling system, wherein the sterilization agent filling system comprises a first input path, a second input path and an output path, the back emptying system is used for conveying input medium into the sterilization agent filling system, the sterilization agent filling system is used for conveying the received medium into the vacuum system through a total vacuum valve, the vacuum power system is used for making the sterilization cabin reach a predetermined negative pressure state, the back emptying system is used for making the sterilization cabin recover to a preset pressure value, and the sterilization agent filling system is used for processing gas in an evaporator to obtain vaporized hydrogen peroxide and sterilizing articles in the sterilization cabin at the same time.The multi-cabinet hydrogen peroxide low-temperature plasma sterilizer can run in multiple different modes at the same time, can achieve special package and special sterilization, can run in parallel, can save time and can improve turnover efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plasma sterilizer, in particular to a multi-cabinet hydrogen peroxide low-temperature plasma sterilizer and a management and tracing method thereof. BACKGROUND

[0002] In the medical field, the disinfection and sterilization of medical instruments is very important. The most advantageous and popular low-temperature disinfection and sterilization method for medical instruments at present is to use hydrogen peroxide disinfectant for disinfection and sterilization. In order to improve the sterilization effect, shorten the sterilization time and reduce the sterilization cost, it is usually necessary to use vacuum heating method to purify hydrogen peroxide liquid and then gasify it to disinfect and sterilize medical instruments. At present, hydrogen peroxide gasification disinfection and sterilization equipment has become the preferred device for low-temperature disinfection and sterilization of medical instruments. In the prior art, the classified instruments are sterilized as a whole, and after sterilization, they need to be classified again. The sterilization time of different instruments is not the same. This not only has low efficiency, but also some instruments are not fully sterilized, and cannot be sterilized exclusively. SUMMARY

[0003] The purpose of the present application is to provide a multi-cabinet hydrogen peroxide low-temperature plasma sterilizer and a management and tracing method thereof to improve the above problems. In order to achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0004] In a first aspect, the present application provides a multi-cabinet hydrogen peroxide low-temperature plasma sterilizer, which comprises a sterilization cabin, a vacuum power system, a backspace system and a sterilizing agent filling system. The sterilizing agent filling system comprises a first input path, a second input path and an output path. The first input path is connected to a liquid filling system, an evaporator and a transmission valve in sequence along the input direction of the medium. The transmission valve transmits the input medium into the sterilizing agent filling system. The second input path is connected to a filter and the backspace system in sequence along the input direction of the medium. The backspace system transmits the input medium into the sterilizing agent filling system. The sterilizing agent filling system transmits the received medium to the vacuum system through a total vacuum valve, and controls the pressure fluctuation in the sterilization cabin through the vacuum power system and the control system, discharges the gas in the sterilization cabin, and brings in clean air, so as to discharge the residual hydrogen peroxide.

[0005] The vacuum power system is used to make the sterilization cabin reach a predetermined negative pressure state. The backspace system is used to make the sterilization cabin recover to a preset pressure value. The sterilizing agent filling system is used to process the gas in the evaporator to obtain vaporized hydrogen peroxide, and at the same time, sterilize the articles in the sterilization cabin.

[0006] Preferably, the sterilization cabin comprises a first sterilization cabin, a second sterilization cabin, a third sterilization cabin and a fourth sterilization cabin, the four sterilization cabins are independent cabin bodies, different sterilization procedures can be operated in different time periods, and each sterilization cabin is divided into an upper layer and a lower layer, each cabin door can be independently rotated to open, and a pressure sensor is arranged in each sterilization cabin.

[0007] Preferably, the vacuum power system comprises a vacuum pump, a distributor, vacuum valves and the sterilization cabins, the vacuum pump is connected to the distributor through a total vacuum valve, the vacuum valves comprise a first vacuum valve, a second vacuum valve, a third vacuum valve and a fourth vacuum valve, and the output end of the distributor is connected to four branches, namely a first branch, a second branch, a third branch and a fourth branch.

[0008] The first branch is connected to the first vacuum valve and the first sterilization cabin in sequence, the second branch is connected to the second vacuum valve and the second sterilization cabin in sequence, the third branch is connected to the third vacuum valve and the third sterilization cabin in sequence, and the fourth branch is connected to the fourth vacuum valve and the fourth sterilization cabin in sequence; the vacuum pump can provide vacuum power for the four sterilization cabins through the distributor, so that the sterilization cabins can reach a predetermined negative pressure state.

[0009] Preferably, the air return system comprises air return valves and an air return distributor, the air return valves comprise a first air return valve, a second air return valve, a third air return valve and a fourth air return valve.

[0010] The first sterilization cabin is connected to the air return distributor through the first air return valve, the second sterilization cabin is connected to the air return distributor through the second air return valve, the third sterilization cabin is connected to the air return distributor through the third air return valve, and the fourth sterilization cabin is connected to the air return distributor through the fourth air return valve; the air return distributor is connected to the atmosphere through a filter.

[0011] If the first sterilization cabin is in a negative pressure state, the first air return valve is opened, air flows through the filter, the air return distributor, the first air return valve and then enters the first sterilization cabin, so that the first sterilization cabin returns to a preset pressure value; if the second sterilization cabin is in a negative pressure state, the second air return valve is opened, air flows through the filter, the air return distributor, the second air return valve and then enters the second sterilization cabin, so that the second sterilization cabin returns to a preset pressure value; if the third sterilization cabin is in a negative pressure state, the third air return valve is opened, air flows through the filter, the air return distributor, the third air return valve and then enters the third sterilization cabin, so that the third sterilization cabin returns to a preset pressure value; and if the fourth sterilization cabin is in a negative pressure state, the fourth air return valve is opened, air flows through the filter, the air return distributor, the fourth air return valve and then enters the fourth sterilization cabin, so that the fourth sterilization cabin returns to a preset pressure value.

[0012] Preferably, the sterilant filling system comprises sterilant, a liquid filling distributor, liquid filling valves, evaporators and transmission valves, the liquid filling valves comprise first, second, third and fourth liquid filling valves, the transmission valves comprise first, second, third and fourth transmission valves, and the evaporators comprise first, second, third and fourth evaporators;

[0013] When the needle is used to sterilize the sterilant under negative pressure, the sterilant enters the evaporators through the liquid filling distributor and the liquid filling valves in sequence; the output end of the liquid filling distributor is connected to four branches, namely fifth, sixth, seventh and eighth branches; the fifth branch is connected to the first liquid filling valve and the first evaporator in sequence, the sixth branch is connected to the second liquid filling valve and the second evaporator in sequence, the seventh branch is connected to the third liquid filling valve and the third evaporator in sequence, and the eighth branch is connected to the fourth liquid filling valve and the fourth evaporator in sequence; the sterilant is purified and vaporized in the four evaporators respectively, and forms vaporized hydrogen peroxide;

[0014] The first, second, third and fourth transmission valves are opened to transport the vaporized hydrogen peroxide in the first, second, third and fourth evaporators into the corresponding first, second, third and fourth sterilization cabins respectively; after maintaining the transportation process for 300s, the first, second, third and fourth transmission valves are closed; after the sterilization of the articles in the sterilization cabin is completed, the valves are opened to balance the pressure, and the sterilant filling is completed.

[0015] Preferably, an oil-gas separator and a deodorizing device are arranged at the gas outlet of the vacuum power system.

[0016] Preferably, the oil-gas separator is used to separate the mixed gas of the oil-gas molecules of the vacuum pump and the hydrogen peroxide, and separate the oil gas into liquid, which is returned to the vacuum pump through the oil return pipeline for recycling.

[0017] In a second aspect, the application provides a management and tracing method of a multi-cabinet hydrogen peroxide low-temperature plasma sterilizer, comprising:

[0018] The first scanning system is used to scan the sterilization package to obtain first information of the sterilization package, the first information including the name of the sterilization package, the purpose of the sterilization package, the packaging time of the sterilization package and the packaging personnel of the sterilization package, the collected first information is input into a server, the input first information is filtered and judged through a data terminal, the filtered and judged information is recorded as second information, and a corresponding barcode is generated according to the second information;

[0019] The barcode is associated with the preset sterilization parameters of the equipment, the sterilization parameters corresponding to the barcode are bound, and the binding information is archived;

[0020] The information that has been archived controls the sterilization operation of the multi-cabinet hydrogen peroxide low-temperature plasma sterilizer on the sterilization package, and generates a first bar code after the operation is completed;

[0021] It is judged whether the first bar code meets the sterilization quality standard, if it meets, it is stored to the terminal for registration, if it does not meet, a signal of needing to continue sterilization treatment is fed back to the terminal for reprocessing.

[0022] Preferably, the management and traceability method of the multi-cabinet hydrogen peroxide low-temperature plasma sterilizer, the judgment of whether the first bar code meets the sterilization quality standard, wherein the sterilization quality standard includes gas monitoring on the environment where the sterilization package is located, wherein the process includes: collecting the gas information of the environment where the sterilization package is located at the moment, and sending the collected gas information to the sterilizer for processing; if it meets the processing standard, the next sterilization quality standard detection is continued, if it does not meet the processing standard, an alarm prompt is sent, and the terminal receives the alarm prompt and uploads the data to the cloud platform.

[0023] The beneficial effects of the present application are:

[0024] The present application classifies and packages the sterilized items for sterilization, and sterilizes in separate cabins, which can run multiple different modes at the same time, achieve dedicated package and dedicated sterilization, and run in parallel, saving a lot of time and improving the turnover efficiency.

[0025] The present application improves the use efficiency of the vacuum power system and other components, accurately selects the sterilization program according to the needs of the user and the actual situation of the sterilization package, reduces the possibility of damaging the instrument, and improves the sterilization success rate; after the sterilization cabin is divided into multiple small cabin bodies, the temperature rising speed of the sterilization cabin will be faster, and the temperature uniformity will be greatly improved, which is of great benefit to the sterilization effect.

[0026] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the application as described in the written description and claims. The objects and other advantages of the present application can be achieved and obtained by the structure specifically pointed out in the written description, claims and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, it should be understood that the following drawings only show some embodiments of the present application, therefore should not be regarded as a limitation to the scope, for those skilled in the art, without paying creative labor, other related drawings can also be obtained from these drawings.

[0028] Figure 1A management trace method flowchart of the multi-cabinet hydrogen peroxide low-temperature plasma sterilizer described in the embodiments of the present application is shown in the figure.

[0029] Figure 2 A vacuum power system schematic diagram of the multi-cabinet hydrogen peroxide low-temperature plasma sterilizer described in the embodiments of the present application is shown in the figure.

[0030] Figure 3 A vacuum power system schematic diagram of the multi-cabinet hydrogen peroxide low-temperature plasma sterilizer described in the embodiments of the present application is shown in the figure.

[0031] Figure 4 A sterilization agent filling system schematic diagram of the multi-cabinet hydrogen peroxide low-temperature plasma sterilizer described in the embodiments of the present application is shown in the figure. DETAILED DESCRIPTION

[0032] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described below in connection with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application.

[0033] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Meanwhile, in the description of the present application, the terms “first”, “second” and the like are only used to distinguish description, and cannot be understood as indicating or implying relative importance.

[0034] Embodiment 1

[0035] The present embodiment provides a multi-cabinet hydrogen peroxide low-temperature plasma sterilizer.

[0036] Referring to Figures 2-4, the hydrogen peroxide low-temperature plasma sterilizer comprises a sterilization cabin, a vacuum power system, a back empty system and a sterilization agent filling system, wherein the sterilization agent filling system comprises a first input path, a second input path and an output path, the first input path is sequentially connected with a liquid filling system, an evaporator and a transmission valve along the input direction of the medium, the transmission valve transmits the input medium into the sterilization agent filling system, the second input path is sequentially connected with a filter and the back empty system along the input direction of the medium, the back empty system transmits the input medium into the sterilization agent filling system, the sterilization agent filling system transmits the received medium to the vacuum system through a total vacuum valve, and the pressure fluctuation in the sterilization cabin is controlled through the vacuum power system and a control system, so that the gas in the sterilization cabin is discharged, clean air is brought in, and residual hydrogen peroxide can be discharged.

[0037] The vacuum power system is used to make the sterilization cabin reach a predetermined negative pressure state, the back empty system is used to make the sterilization cabin recover to a preset pressure value, and the sterilization agent filling system is used to process the gas in the evaporator to obtain vaporized hydrogen peroxide, and at the same time, the articles in the sterilization cabin are subjected to sterilization treatment.

[0038] It should be noted that the vacuum pump is connected with the distributor through the total vacuum valve, the distributor is connected with four pipelines, which are respectively connected with the first sterilization cabin through the first vacuum valve, the second sterilization cabin through the second vacuum valve, the third sterilization cabin through the third vacuum valve and the fourth sterilization cabin through the fourth vacuum valve. One vacuum power source is realized to provide vacuum power for the four cabin bodies, which greatly saves resources and enables the vacuum power to be not only time-sharing reused but also simultaneously used.

[0039] It can be understood that the vacuum power system can make the sterilization cabin reach a predetermined negative pressure state, start the vacuum pump, open the total vacuum valve, open the first vacuum valve, and then the first sterilization cabin starts to reduce pressure. Similarly, the second sterilization cabin, the third sterilization cabin and the fourth sterilization cabin are reduced in pressure.

[0040] Further, the sterilization cabin comprises a first sterilization cabin, a second sterilization cabin, a third sterilization cabin and a fourth sterilization cabin, the four sterilization cabins are independent cabin bodies, different sterilization programs can be operated in different time periods, each sterilization cabin is divided into an upper layer and a lower layer, each cabin door can be independently rotated to be opened, and a pressure sensor is arranged in each sterilization cabin.

[0041] Further, the vacuum power system comprises a vacuum pump, a distributor, vacuum valves and the sterilization cabin, the vacuum pump is connected to the distributor through a total vacuum valve, the vacuum valves comprise first vacuum valves, second vacuum valves, third vacuum valves and fourth vacuum valves, and the output end of the distributor is connected with four branches, which are a first branch, a second branch, a third branch and a fourth branch.

[0042] The first branch is connected with the first vacuum valve and the first sterilization cabin in sequence, the second branch is connected with the second vacuum valve and the second sterilization cabin in sequence, the third branch is connected with the third vacuum valve and the third sterilization cabin in sequence, and the fourth branch is connected with the fourth vacuum valve and the fourth sterilization cabin in sequence; the vacuum pump can provide vacuum power for the four sterilization cabins through the distributor, so that the sterilization cabin can reach a predetermined negative pressure state.

[0043] Further, the air return system comprises air return valves and an air return distributor, the air return valves comprising a first air return valve, a second air return valve, a third air return valve and a fourth air return valve;

[0044] The first sterilization cabin is connected to the air return distributor through the first air return valve, the second sterilization cabin is connected to the air return distributor through the second air return valve, the third sterilization cabin is connected to the air return distributor through the third air return valve, and the fourth sterilization cabin is connected to the air return distributor through the fourth air return valve; the air return distributor is connected to the atmosphere through a filter;

[0045] If the first sterilization cabin is in a negative pressure state, the first air return valve is opened, and the airflow enters the first sterilization cabin in sequence through the filter, the air return distributor and the first air return valve, so that the first sterilization cabin returns to the preset pressure value; if the second sterilization cabin is in a negative pressure state, the second air return valve is opened, and the airflow enters the second sterilization cabin in sequence through the filter, the air return distributor and the second air return valve, so that the second sterilization cabin returns to the preset pressure value; if the third sterilization cabin is in a negative pressure state, the third air return valve is opened, and the airflow enters the third sterilization cabin in sequence through the filter, the air return distributor and the third air return valve, so that the third sterilization cabin returns to the preset pressure value; if the fourth sterilization cabin is in a negative pressure state, the fourth air return valve is opened, and the airflow enters the fourth sterilization cabin in sequence through the filter, the air return distributor and the fourth air return valve, so that the fourth sterilization cabin returns to the preset pressure value.

[0046] It can be understood that the first sterilization cabin, the second sterilization cabin, the third sterilization cabin and the fourth sterilization cabin are connected to the air return distributor through the first air return valve, the second air return valve, the third air return valve and the fourth air return valve respectively, and the air return distributor is connected to the atmosphere through a filter. When the first sterilization cabin is in a negative pressure state, the first air return valve is opened, and the airflow enters the first sterilization cabin through the filter, the air return distributor and the first air return valve, so that the first sterilization cabin returns to the preset pressure value, and so on; wherein the first sterilization cabin, the second sterilization cabin, the third sterilization cabin and the fourth sterilization cabin are respectively provided with pressure sensors for collecting the pressure sensing in the sterilization cabin.

[0047] Further, the sterilant filling system comprises sterilant, liquid filling distributor, liquid filling valve, evaporator and transmission valve, the liquid filling valve comprises first liquid filling valve, second liquid filling valve, third liquid filling valve and fourth liquid filling valve, the transmission valve comprises first transmission valve, second transmission valve, third transmission valve and fourth transmission valve, and the evaporator comprises first evaporator, second evaporator, third evaporator and fourth evaporator;

[0048] When the needle is punctured into the plate type sterilant capsule under negative pressure, the sterilant enters the evaporator through the liquid filling distributor and the liquid filling valve in sequence; the output end of the liquid filling distributor is connected with four branches, which are fifth branch, sixth branch, seventh branch and eighth branch; the fifth branch is connected with the first liquid filling valve to the first evaporator in sequence, the sixth branch is connected with the second liquid filling valve to the second evaporator in sequence, the seventh branch is connected with the third liquid filling valve to the third evaporator in sequence, and the eighth branch is connected with the fourth liquid filling valve to the fourth evaporator in sequence; the sterilant is purified and vaporized in the four evaporators respectively, and vaporized hydrogen peroxide is formed.

[0049] The first transmission valve, the second transmission valve, the third transmission valve and the fourth transmission valve are opened, and the vaporized hydrogen peroxide in the first evaporator, the second evaporator, the third evaporator and the fourth evaporator is respectively transported into the corresponding first sterilization cabin, the second sterilization cabin, the third sterilization cabin and the fourth sterilization cabin; after the transportation process is maintained for 300s, the first transmission valve, the second transmission valve, the third transmission valve and the fourth transmission valve are closed; until the sterilization of the articles in the sterilization cabin is completed, the valve is opened to balance the pressure, and the sterilant filling is completed.

[0050] It should be noted that under negative pressure of the evaporator, the needle is punctured into the plate type sterilant capsule, the liquid filling valve is opened, the sterilant enters the evaporator through the pipeline, the sterilant is purified and vaporized in the evaporator, and vaporized hydrogen peroxide is formed. The negative pressure in the sterilization cabin is formed by the vacuum power system, then the transmission valve is opened, the vaporized sterilant in the evaporator is transported into the sterilization cabin, and after a certain time such as 300s, the transmission valve is closed. After the sterilant enters the sterilization cabin, the sterilization of the articles in the sterilization cabin begins; after a certain time such as 400s, the emptying valve is opened, and the pressure is balanced. Then the vacuum power system and the control system are used to control the pressure in the sterilization cabin to fluctuate up and down, and then the gas is discharged out of the sterilization cabin, and the clean air enters the sterilization cabin again through the emptying valve, so as to achieve the effect of discharging residual hydrogen peroxide.

[0051] Further, the oil-gas separator and the deodorizing device are arranged at the gas outlet of the vacuum power system; the oil-gas separator is used to separate the mixed gas of the oil vapor molecules of the vacuum pump and the hydrogen peroxide, and separate the oil gas into liquid, which is returned to the vacuum pump through the oil return pipeline for recycling.

[0052] In summary, the whole sterilization system is controlled by the control system, and the operation data is displayed by the display device. The display device can display the operation state and parameters of each cabin body respectively, and control the start and stop of operation.

[0053] Embodiment 2

[0054] Referring to Figure 1 , a management traceability method flowchart of a multi-cabinet hydrogen peroxide low-temperature plasma sterilizer is shown, which includes: scanning the sterilization package through a first scanning system to obtain first information of the sterilization package, the first information including the sterilization package name, the sterilization package purpose, the sterilization package packaging time, and the sterilization package packaging personnel, entering the collected first information into a server, filtering and judging the entered first information through a data terminal, recording the filtered and judged information as second information, and generating a corresponding barcode according to the second information;

[0055] According to the association of the barcode and the preset sterilization parameters of the equipment, the sterilization parameters corresponding to the barcode are bound, and the binding information is archived;

[0056] The archived information is called to control the multi-cabinet hydrogen peroxide low-temperature plasma sterilizer to perform sterilization operation on the sterilization package, and a first barcode is generated after the operation is completed;

[0057] It is judged whether the first barcode meets the sterilization quality standard. If it meets, it is stored in the terminal for registration. If it does not meet, a signal is fed back to the terminal for reprocessing that needs to continue sterilization processing.

[0058] It can be understood that the equipment is configured with an environment monitoring system to monitor the environment around the equipment in real time, which can be used for unmanned operation. Personnel identity authentication can allow operators to input user names and passwords or swipe cards to log in, but can easily realize face recognition and login, and the operation of the equipment after login will be recorded in the system; wherein, the sterilization package information can be obtained by a handheld device such as a scanning gun, which is used to read the information on the sterilization package, including the sterilization package name, purpose, packaging time, and packaging personnel, etc. After scanning and entering the information, the sterilization parameters of the equipment can be bound, and the data can be archived for sterilization package traceability.

[0059] It should be noted that the judgment of whether the first barcode meets the sterilization quality standard includes gas monitoring of the environment where the sterilization package is located, and the process includes: collecting the gas information of the environment where the sterilization package is located at the moment, and sending the collected gas information to the sterilizer for processing; if the processing standard is met, the next sterilization quality standard detection is continued, if the processing standard is not met, an alarm prompt is issued, and the terminal receives the alarm prompt and uploads the data to the cloud platform.

[0060] It can be understood that when judging the sterilization quality, the preset sterilization quality level can be used for judgment, and harmful gases in the environment during sterilization are monitored, and the harmful gas detection instrument is used for detecting the gases in the environment, such as hydrogen peroxide gas detection, ethylene oxide gas monitoring and formaldehyde gas monitoring, collecting the gas samples in the environment, comparing the collected samples with the preset samples, and evaluating by grade. It should be noted that the user environment may contain these harmful substances, and the environment needs to be detected for the safety of the user. The sensor will collect this information and transmit it to the sterilizer for processing. The device will alarm, the alarm outside the sterilization chamber will also prompt, and the remote terminal will display, including mobile phones and PC terminals. The remote terminal is a touch screen on the device, which uploads data to the cloud platform through a 4G module, and the mobile phone and PC terminals can display and operate the content on the touch screen synchronously.

[0061] Further, the mobile phone or PC has two ways to access the device, the first is a viewing mode, the mobile phone can view all the contents in the page jump, but the page on the sterilizer will not be consistent with the page displayed on the mobile phone, which is equivalent to secretly viewing the mobile phone in the background. The second way is direct operation, the mobile phone switches to which interface, the corresponding sterilizer display interface switches synchronously. This mode requires higher permission and needs a special password to enter, which further enhances privacy.

[0062] In summary, the application improves the use efficiency of the vacuum power system and other components, accurately selects the sterilization program according to the needs of the user and the actual situation of the sterilization package, reduces the possibility of damaging the equipment, and improves the sterilization success rate. After the sterilization cabin is divided into multiple small cabin bodies, the temperature rising speed of the sterilization cabin will be faster, and the temperature uniformity will be greatly improved, which is of great benefit to the sterilization effect.

[0063] The above only describes the preferred embodiments of the application and is not intended to limit the application. For those skilled in the art, the application can be changed and modified in various ways. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the application shall be included in the protection scope of the application.

[0064] The above only describes the specific embodiments of the application, but the protection scope of the application is not limited thereto. Any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the application, which shall be included in the protection scope of the application. Therefore, the protection scope of the application shall be subject to the protection scope of the claims.

Claims

1. A multi-cabinet hydrogen peroxide low-temperature plasma sterilizer, characterized in that, The system includes a sterilization chamber, a vacuum power system, a return air system, and a sterilizing agent dispensing system. The sterilizing agent dispensing system comprises a first input path, a second input path, and an output path. The first input path connects sequentially to a liquid dispensing system, an evaporator, and a transfer valve along the input direction of the medium. The transfer valve delivers the input medium into the sterilizing agent dispensing system. The second input path connects sequentially to a filter and a return air system along the input direction of the medium. The return air system delivers the received medium to the vacuum system through a main vacuum valve. The vacuum power system and control system control the pressure fluctuations within the sterilization chamber, expelling gases from the chamber and introducing clean air, thereby removing residual hydrogen peroxide. The vacuum power system is used to bring the sterilization chamber to a predetermined negative pressure state, the return air system is used to restore the sterilization chamber to a preset pressure value, and the sterilizing agent injection system is used to treat the gas in the evaporator to obtain vaporized hydrogen peroxide, and at the same time sterilize the items in the sterilization chamber. The sterilization chamber includes a first sterilization chamber, a second sterilization chamber, a third sterilization chamber, and a fourth sterilization chamber. The four sterilization chambers are independent chambers that can run different sterilization programs at different times. Each sterilization chamber is divided into an upper and a lower layer. Each door can be rotated and opened independently. Each sterilization chamber is equipped with a pressure sensor. The vacuum power system includes a vacuum pump, a distributor, vacuum valves, and a sterilization chamber. The vacuum pump is connected to the distributor through a main vacuum valve. The vacuum valves include a first vacuum valve, a second vacuum valve, a third vacuum valve, and a fourth vacuum valve. The output end of the distributor is connected to four branches, namely the first branch, the second branch, the third branch, and the fourth branch. The first branch is connected to the first vacuum valve and the first sterilization chamber in sequence; the second branch is connected to the second vacuum valve and the second sterilization chamber in sequence; the third branch is connected to the third vacuum valve and the third sterilization chamber in sequence; and the fourth branch is connected to the fourth vacuum valve and the fourth sterilization chamber in sequence. The vacuum pump can provide vacuum power to the four sterilization chambers through the distributor, so that the sterilization chambers can reach the predetermined negative pressure state. The return air system includes a return air valve and a return air distributor. The return air valve includes a first return air valve, a second return air valve, a third return air valve, and a fourth return air valve. The first sterilization chamber is connected to the return air distributor via the first return air valve, the second sterilization chamber is connected to the return air distributor via the second return air valve, the third sterilization chamber is connected to the return air distributor via the third return air valve, and the fourth sterilization chamber is connected to the return air distributor via the fourth return air valve. The return air distributor is connected to the atmosphere via a filter. If the first sterilization chamber is under negative pressure, the first return air valve is opened, and the airflow passes through the filter, return air distributor, and the first return air valve in sequence before entering the first sterilization chamber, bringing the first sterilization chamber back to the preset pressure value. If the second sterilization chamber is under negative pressure, the second return air valve is opened, and the airflow passes through the filter, return air distributor, and the second return air valve in sequence before entering the second sterilization chamber, bringing the second sterilization chamber back to the preset pressure value. If the third sterilization chamber is under negative pressure, the third return air valve is opened, and the airflow passes through the filter, return air distributor, and the third return air valve in sequence before entering the third sterilization chamber, bringing the third sterilization chamber back to the preset pressure value. If the fourth sterilization chamber is under negative pressure, the fourth return air valve is opened, and the airflow passes through the filter, return air distributor, and the fourth return air valve in sequence before entering the fourth sterilization chamber, bringing the fourth sterilization chamber back to the preset pressure value. The sterilizing agent dispensing system includes a sterilizing agent, a liquid dispenser, a liquid dispensing valve, an evaporator, and a transfer valve. The liquid dispensing valve includes a first liquid dispensing valve, a second liquid dispensing valve, a third liquid dispensing valve, and a fourth liquid dispensing valve. The transfer valve includes a first transfer valve, a second transfer valve, a third transfer valve, and a fourth transfer valve. The evaporator includes a first evaporator, a second evaporator, a third evaporator, and a fourth evaporator. Under negative pressure, after the sterilizing agent is punctured, it enters the evaporator sequentially through the liquid distributor and the liquid dispensing valve. The output of the liquid distributor is connected to four branches, namely the fifth branch, the sixth branch, the seventh branch, and the eighth branch. The fifth branch is connected to the first liquid dispensing valve to the first evaporator, the sixth branch is connected to the second liquid dispensing valve to the second evaporator, the seventh branch is connected to the third liquid dispensing valve to the third evaporator, and the eighth branch is connected to the fourth liquid dispensing valve to the fourth evaporator. The sterilizing agent is purified and vaporized in the four evaporators to form vaporized hydrogen peroxide. Open the first, second, third, and fourth transfer valves to deliver the vaporized hydrogen peroxide from the first, second, third, and fourth evaporators to the corresponding first, second, third, and fourth sterilization chambers, respectively. Maintain the delivery process for 300 seconds, then close the first, second, third, and fourth transfer valves until the items in the sterilization chambers are sterilized. Finally, open the valves to equalize the pressure, and the sterilizing agent filling is complete. In this process, under negative pressure in the evaporator, a needle is inserted into the plate-type sterilizing agent capsule, and the liquid filling valve is opened. The sterilizing agent enters the evaporator through the pipeline, where it is purified and vaporized to form vaporized hydrogen peroxide. A negative pressure is created in the sterilization chamber by the vacuum power system. Then, the transfer valve is opened, and the vaporized sterilizing agent in the evaporator is delivered to the sterilization chamber. After a certain time, such as 300 seconds, the transfer valve is closed. After the sterilizing agent enters the sterilization chamber, it begins to sterilize the items inside. After maintaining this pressure for a certain time, such as 400 seconds, the return air valve is opened to balance the pressure. Subsequently, the vacuum power system and the return control system are used to control the pressure fluctuations in the sterilization chamber. Then, the gas is discharged outside the sterilization chamber and re-enters clean air through the return air valve to remove residual hydrogen peroxide. An oil-gas separator and a deodorization device are installed at the outlet of the vacuum power system. The oil-gas separator is used to separate the oil vapor molecules and hydrogen peroxide mixture from the vacuum pump, separating the oil and gas into liquid, which is then returned to the vacuum pump through the return oil pipeline for recycling.

2. The management and traceability method for the multi-cabinet hydrogen peroxide low-temperature plasma sterilizer according to claim 1, characterized in that, include: The sterilization package is scanned by the first scanning system to obtain the first information of the sterilization package. The first information includes the name of the sterilization package, the purpose of the sterilization package, the packaging time of the sterilization package, and the packaging personnel of the sterilization package. The collected first information is entered into the server. The entered first information is filtered and judged by the data terminal. The filtered and judged information is recorded as the second information. A corresponding barcode is generated based on the second information. The barcode is associated with the device's preset sterilization parameters, the sterilization parameters corresponding to the barcode are bound, and the binding information is archived. The system calls upon the archived information to control the multi-cabinet hydrogen peroxide low-temperature plasma sterilizer to sterilize the sterilization package and generates the first barcode after the operation is completed. The system determines whether the first barcode meets the sterilization quality standards. If it does, it stores the barcode in the terminal for registration. If it does not meet the standards, it sends a signal to the terminal to continue sterilization for further processing.

3. The management and traceability method for a multi-cabinet hydrogen peroxide low-temperature plasma sterilizer according to claim 2, characterized in that, The determination of whether the first barcode meets the sterilization quality standard includes gas monitoring of the environment in which the sterilization package is located. The process includes: collecting gas information of the environment in which the sterilization package is located and sending the collected gas information to the sterilizer for processing; if it meets the processing standard, the next step of sterilization quality standard testing is carried out; if it does not meet the processing standard, an alarm is issued and the terminal receives the alarm and uploads the data to the cloud platform.

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