Method of irradiation sterilization of disposable polyvinyl alcohol foam wound care material

Abstract

The application provides a radiation sterilization method of a disposable polyvinyl alcohol foam wound care material. It relates to the field of medical devices. The method comprises the following steps: placing the disposable polyvinyl alcohol foam wound care material in a sterilization chamber to obtain the sterilized disposable polyvinyl alcohol foam wound care material; packaging the sterilized disposable polyvinyl alcohol foam wound care material into a packaging box in a sterile environment; placing the packaging box into a cargo box, and placing the cargo box on a lifting tool, which is operated to a radiation area by an automatic transmission system; performing multiple cyclic radiations in the radiation area to obtain the re-sterilized disposable polyvinyl alcohol foam wound care material, and the radiation dose of the multiple radiations is required to be 25.0-40.0 kGy. The method can realize multiple sterilization of the disposable polyvinyl alcohol foam wound care material and improve the sterilization effect.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to an irradiation sterilization method for disposable polyvinyl alcohol foam wound dressing material. Background Technology

[0002] Disposable polyvinyl alcohol (PVA) foam wound dressing is a dressing product made from PVA through a special processing technique. PVA is the only known water-soluble, non-toxic, non-irritating, and odorless polymer with good biocompatibility and is 100% biodegradable.

[0003] Polyvinyl alcohol dressings possess the following characteristics due to their excellent chemical and physical properties:

[0004] 1. Degradability: Polyvinyl alcohol gauze can be completely dissolved in water when the temperature reaches 60 degrees Celsius.

[0005] 2. Completely non-toxic and harmless. Traditional degreased cotton gauze needs to be treated with NaOH chemical raw materials, so there will be some chemical residue. However, medical-grade polyvinyl alcohol dressing is an extremely safe high molecular organic compound that is non-toxic to the human body, has no side effects, and has good biocompatibility.

[0006] 3. Low lint shedding and no rough edges: Thanks to the excellent physical properties of polyvinyl alcohol, polyvinyl alcohol gauze has much better lint shedding than traditional gauze.

[0007] 4. Strong absorbency: Polyvinyl alcohol fabric has more than 30% stronger absorbency than ordinary pure cotton gauze. It can be better used for hemostasis, tissue fluid absorption and other operations.

[0008] 5. Non-adhesive to wounds: Because polyvinyl alcohol fabric does not absorb oil and exudate, it effectively prevents adhesion to wounds and wound tissues, reduces the pain of dressing changes, significantly shortens wound healing time, and improves wound healing quality.

[0009] Since disposable polyvinyl alcohol foam wound dressings need to come into direct contact with wounds, their sterilization effect is crucial. Summary of the Invention

[0010] The purpose of this application is to provide an irradiation sterilization method for disposable polyvinyl alcohol foam wound dressing materials, so as to alleviate the technical problem of poor sterilization effect in the prior art.

[0011] In a first aspect, this application provides a method for irradiation sterilization of disposable polyvinyl alcohol foam wound dressing material, comprising:

[0012] Disposable polyvinyl alcohol foam wound dressing is placed in a sterilization chamber, and the chamber is pressurized by heating to maintain the pressure at 0.4 MPa.

[0013] The sterilization chamber is evacuated to a vacuum level of 0.07 MPa or higher. The vaporized ethanol is then added into the sterilization chamber to bring the temperature and pressure of the sterilization chamber to normal, thus obtaining sterilized disposable polyvinyl alcohol foam wound dressing material.

[0014] The single-use polyvinyl alcohol foam wound dressing material was packaged into a box under sterile conditions after sterilization.

[0015] The packaging box is placed in the cargo box, and the cargo box is placed on the lifting device, which is moved to the irradiation area by an automatic transfer system;

[0016] The irradiation area is subjected to multiple cycles of irradiation to obtain a disposable polyvinyl alcohol foam wound dressing material that has been sterilized again. The required irradiation dose for these multiple irradiations is 25.0-40.0 kGy.

[0017] In an optional embodiment, a single-use polyvinyl alcohol foam wound dressing material that has been sterilized once is irradiated multiple times using an irradiation device. The irradiation device includes an irradiation area, a loading and unloading area, an automatic transport system, lifting devices, and cargo boxes. The automatic transport system is a closed loop, which carries multiple lifting devices through the loop sequentially through the loading and unloading area and the irradiation area. One lifting device is used to hold two cargo boxes, and one cargo box is used to hold six boxes.

[0018] In an optional implementation, the irradiation device is further monitored and controlled by a control system.

[0019] In an optional implementation, it further includes:

[0020] The control system provides a first user interface, which includes a layout diagram of the irradiation device, used to display the real-time positions of the various lifting devices of the irradiation device.

[0021] In an optional implementation, the spreader includes a position sensor, and the real-time position of the spreader used for display in the layout diagram is determined based on the position data of the position sensor.

[0022] In an optional embodiment, an infrared signal receiving device is provided at the boundary between the loading / unloading area and the irradiation area, and the position sensor on the lifting device is an infrared emitting device. When the lifting device is located at the boundary between the loading / unloading area and the irradiation area, the infrared signal emitted by the infrared emitting device is received by the infrared signal receiving device.

[0023] In an optional implementation, the real-time position of the spreader used for display in the layout diagram is determined based on the spreader's starting position, the time it takes to leave the starting position, and the moving speed.

[0024] In an optional implementation, it further includes:

[0025] When an infrared signal emitted by the spreader is received, the boundary between the loading / unloading area and the irradiation area is determined as the new starting position of the spreader, and the real-time position of the spreader used for display in the layout diagram is determined based on the new starting position, the infrared signal reception time, and the moving speed.

[0026] In an optional implementation, the moving speed is preset and updated based on the time between two adjacent infrared signal receptions and the loop length.

[0027] In an optional implementation, it further includes:

[0028] The control system provides a second user interface, which includes a configuration window and an input area for multiple control parameters, including movement speed, number of laps, and dosage requirements.

[0029] In response to a configuration operation on the configuration window, determine the input target control parameter value;

[0030] Based on the target control parameter value, the irradiation device is controlled to irradiate the sterilized disposable polyvinyl alcohol foam wound dressing material multiple times.

[0031] Secondly, a control device is provided. It includes:

[0032] A display module is used to provide a first user interface, the first user interface including a layout diagram of the irradiation device, the layout diagram of the irradiation device being used to display the real-time position of each of the irradiation device's lifting devices; wherein, each lifting device includes a position sensor, and the real-time position of the lifting device displayed in the layout diagram is determined based on the position data of the position sensor;

[0033] The update module is used to determine the real-time position of the spreader used for display in the layout map based on the position data from the position sensor.

[0034] This application provides a method for irradiating and sterilizing disposable polyvinyl alcohol (PVA) foam wound dressing. The method involves placing the disposable PVA foam wound dressing in a sterilization chamber, pressurizing the chamber by heating to maintain a pressure of 0.4 MPa, evacuating the chamber to a vacuum level above 0.07 MPa, adding vaporized ethanol to the chamber, and bringing the temperature and pressure to room temperature and atmospheric pressure to obtain sterilized disposable PVA foam wound dressing. The sterilized disposable PVA foam wound dressing is then packaged in a box under sterile conditions. The box is placed in a cargo container, which is then placed on a lifting device that is automatically transported to an irradiation area. Multiple irradiations are performed in the irradiation area to obtain a second sterilized disposable PVA foam wound dressing. The required irradiation dose for these multiple irradiations is 25.0-40.0 kGy. This method achieves multiple sterilization of the disposable PVA foam wound dressing, improving the sterilization effect. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of an irradiation sterilization method for a disposable polyvinyl alcohol foam wound dressing provided in an embodiment of this application.

[0037] Figure 2 A schematic diagram of the user interface of the control system provided in an embodiment of this application;

[0038] Figure 3 This is a schematic diagram of the control device structure provided in the embodiments of this application;

[0039] Figure 4 This is a schematic diagram of the control system structure provided in an embodiment of this application. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0042] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0043] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0044] Figure 1 This is a schematic flowchart illustrating an irradiation sterilization method for a disposable polyvinyl alcohol foam wound dressing material provided in this application embodiment. Figure 1 As shown, the method may include:

[0045] S110 involves placing disposable polyvinyl alcohol foam wound dressing material in a sterilization chamber and pressurizing the chamber by heating, maintaining the pressure at 0.4 MPa.

[0046] S120, the sterilization chamber is evacuated to a vacuum degree of 0.07 MPa or higher, and the vaporized ethanol is added into the sterilization chamber to bring the temperature and pressure of the sterilization chamber to room temperature and room pressure, so as to obtain sterilized disposable polyvinyl alcohol foam wound care material.

[0047] S130, a single-use polyvinyl alcohol foam wound dressing material that has been sterilized in a sterile environment and then packaged in a box;

[0048] S140, the packaging box is placed in the cargo box, and the cargo box is placed on the lifting device, which is moved to the irradiation area by an automatic transfer system;

[0049] S150 involves repeated cyclic irradiation in the irradiated area to obtain a disposable polyvinyl alcohol foam wound dressing material that has been sterilized again. The required irradiation dose for these repeated irradiations is 25.0-40.0 kGy.

[0050] Disposable polyvinyl alcohol foam wound dressings that have undergone initial sterilization can be irradiated multiple times using an irradiation device. The irradiation device includes an irradiation area, a loading / unloading area, an automatic transport system, lifting devices, and cargo containers. The automatic transport system is a closed loop that carries multiple lifting devices sequentially through the loading / unloading area and the irradiation area. One lifting device holds two cargo containers, and one cargo container holds six boxes. For example, irradiation can be performed using a GM-II type Co-60 gamma irradiation device. The cobalt source activity is 1.58 million curies (5.3 × 10¹⁶ Bq). This irradiation device mainly consists of an automatic transport system, lifting devices, and cargo containers, with the automatic transport system being a closed loop that allows for cyclical transport. The transmission system is equipped with 59 lifting devices at regular intervals. Each device can carry two cargo boxes, one above the other. Therefore, 118 cargo boxes can be sterilized in one irradiation cycle. Each cargo box measures 112cm × 51cm × 125cm and has a volume of 0.71m3. The Co-60 radiation source is located in the middle of the irradiation area.

[0051] It can achieve multiple sterilization of disposable polyvinyl alcohol foam wound dressing materials, thus improving the sterilization effect.

[0052] In some embodiments, the irradiation device can also be monitored and controlled by a control system. This allows for more convenient and accurate control and monitoring of the irradiation device, thereby improving irradiation precision.

[0053] As an example, such as Figure 2 As shown, a first user interface can be provided through the control system. This first user interface may include a layout diagram of the irradiation device, which is used to display the real-time position of each of the irradiation device's lifting devices.

[0054] The spreader includes a position sensor, which determines the real-time position of the spreader used for display in the layout diagram based on the position data from the sensor. This position sensor can be a GPS sensor, an RFID positioning sensor, or a UWB sensor, etc.

[0055] For example, an infrared signal receiving device is installed at the boundary between the loading / unloading area and the irradiation area, and the position sensor on the spreader is an infrared emitting device. When the spreader is located at the boundary between the loading / unloading area and the irradiation area, the infrared signal emitted by the infrared emitting device is received by the infrared signal receiving device.

[0056] The infrared emitting device can emit linear infrared signals, which can be encoded, including the identification of the corresponding lifting device.

[0057] The infrared signal receiving device can be elongated, with the elongated shape extending along the boundary line between the loading / unloading area and the irradiation area, so as to detect the lifting equipment passing through the boundary line.

[0058] In some embodiments, the real-time position of the spreader used to display the layout diagram can be determined based on the spreader's starting position, the time it took to leave the starting position, and its moving speed. For example, the various positions of the automatic transmission system as a closed loop can be represented by a line segment, with the starting point at 0 meters and the ending point at X meters, and the circumference of the automatic transmission system as a closed loop equal to X meters. In this case, the starting position can be 0 meters, the time of departure from the starting position is 0:00, the current time is 0:01, and the moving speed is 2.8 meters / minute, then the current position is calculated to be 2.8 meters.

[0059] Furthermore, when an infrared signal emitted by the spreader is received, the boundary between the loading / unloading area and the irradiation area is determined as the new starting position of the spreader, and the real-time position of the spreader used for display in the layout diagram is determined based on the new starting position, the infrared signal reception time, and the moving speed.

[0060] In some embodiments, the moving speed is preset and updated based on the time between two adjacent infrared signal receptions and the loop length.

[0061] For example, a second user interface can be provided by the control system. The second user interface includes a configuration window, which includes an input area for multiple control parameters, including movement speed, number of rotations, and dose requirements. In response to a configuration operation on the configuration window, a target value of the input control parameter is determined. Based on the target control parameter value, the irradiation device is controlled to irradiate the sterilized disposable polyvinyl alcohol foam wound dressing multiple times.

[0062] Figure 3 This is a schematic diagram of a control device provided in an embodiment of this application. The control device is used to install itself within an electronic device to obtain a control system. Figure 3 As shown, the device may include the following structure:

[0063] Display module 301 is used to provide a first user interface, which includes a layout diagram of the irradiation device. The layout diagram of the irradiation device is used to display the real-time position of each lifting device of the irradiation device.

[0064] Update module 302 is used to determine the real-time position of the spreader used for display in the layout diagram based on the position data of the position sensor.

[0065] In some embodiments, an infrared signal receiving device is provided at the boundary between the loading / unloading area and the irradiation area, and the position sensor on the spreader is an infrared emitting device. When the spreader is located at the boundary between the loading / unloading area and the irradiation area, the infrared signal emitted by the infrared emitting device is received by the infrared signal receiving device.

[0066] In some embodiments, the update module 302 is specifically used to determine the real-time position of the spreader used to display the layout diagram based on the starting position of the spreader, the time it takes to leave the starting position, and the moving speed.

[0067] In some embodiments, the update module 302 is specifically used to determine the boundary between the loading / unloading area and the irradiation area as the new starting position of the spreader when the infrared signal emitted by the spreader is received, and to determine the real-time position of the spreader used for display in the layout diagram based on the new starting position, the infrared signal reception time and the moving speed.

[0068] In some embodiments, the update module 302 is specifically used to preset the moving speed and update the moving speed based on the time between two adjacent infrared signal receptions and the loop length.

[0069] In some embodiments, the display module 301 is further configured to provide a second user interface, the second user interface including a configuration window, the configuration window including an input area for multiple control parameters, the multiple control parameters including movement speed, number of laps and dose requirements;

[0070] Configuration module 303 is used to determine the input target control parameter value in response to a configuration operation on the configuration window;

[0071] The control module 304 is used to control the irradiation device to irradiate the sterilized disposable polyvinyl alcohol foam wound dressing multiple times based on the target control parameter value.

[0072] This application also provides a control system, such as... Figure 4 As shown, the system includes a processor 410, a communication interface 420, a memory 430, a communication bus 440, and an input / output device 450. The processor 410, communication interface 420, memory 430, and input / output device 450 communicate with each other via the communication bus 440. The input / output device may include one or more of a display, keyboard, and mouse, and the display may be a touch screen display.

[0073] Memory 430 is used to store computer programs;

[0074] When the processor 410 executes the program stored in the memory 430, it performs the following steps:

[0075] The control system provides a first user interface, which includes a layout diagram of the irradiation device, and the layout diagram of the irradiation device is used to display the real-time position of each of the irradiation device's lifting devices.

[0076] The spreader includes a position sensor, and the real-time position of the spreader used for display in the layout diagram is determined based on the position data of the position sensor.

[0077] The communication bus mentioned above can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. This communication bus can be divided into address bus, data bus, control bus, etc. For ease of illustration, only one thick line is used to represent it in the diagram, but this does not mean that there is only one bus or one type of bus.

[0078] The communication interface is used for communication between the aforementioned electronic devices and other devices.

[0079] The memory may include random access memory (RAM) or non-volatile memory (NVM), such as at least one disk storage device. Optionally, the memory may also be at least one storage device located remotely from the aforementioned processor.

[0080] The processors mentioned above can be general-purpose processors, including central processing units (CPUs), network processors (NPs), etc.; they can also be digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0081] The implementation methods and beneficial effects of the various components of the electronic device in the above embodiments for solving the problem can be found in [reference needed]. Figure 1 The steps in the illustrated embodiments are used to implement the electronic device. Therefore, the specific working process and beneficial effects of the electronic device provided in this application will not be repeated here.

[0082] In another embodiment provided in this application, a computer-readable storage medium is also provided, which stores instructions that, when executed on a computer, cause the computer to perform an index tracking method in any of the distributed systems described above.

[0083] In another embodiment provided in this application, a computer program product containing instructions is also provided, which, when run on a computer, causes the computer to execute any of the metric tracking methods in the distributed system described above.

[0084] Those skilled in the art will understand that the embodiments in this application can be provided as methods, systems, or computer program products. Therefore, the embodiments in this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the embodiments in this application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0085] This application describes embodiments of methods, apparatus (systems), and computer program products according to embodiments of this application with reference to flowchart illustrations and / or block diagrams. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0086] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0087] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0088] Although preferred embodiments have been described in this application, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of this application.

[0089] Obviously, those skilled in the art can make various modifications and variations to the embodiments of this application without departing from the spirit and scope of the embodiments of this application. Therefore, if these modifications and variations to the embodiments of this application fall within the scope of the claims in this application and their equivalents, then this application also intends to include these modifications and variations.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A method for irradiation sterilization of disposable polyvinyl alcohol foam wound dressing material, characterized in that, include: Disposable polyvinyl alcohol foam wound dressing is placed in a sterilization chamber, and the chamber is pressurized by heating to maintain the pressure at 0.4 MPa. The sterilization chamber is evacuated to a vacuum level of 0.07 MPa or higher. The vaporized ethanol is then added into the sterilization chamber to bring the temperature and pressure of the sterilization chamber to normal, thus obtaining sterilized disposable polyvinyl alcohol foam wound dressing material. The single-use polyvinyl alcohol foam wound dressing material was packaged into a box under sterile conditions after sterilization. The packaging box is placed in the cargo box, and the cargo box is placed on the lifting device, which is moved to the irradiation area by an automatic transfer system; The irradiation area is subjected to multiple cycles of irradiation to obtain a disposable polyvinyl alcohol foam wound dressing material that has been sterilized again. The irradiation dose required for these multiple irradiations is 25.0-40.0 kGy. The disposable polyvinyl alcohol foam wound dressing material, which has been sterilized once, is irradiated multiple times by an irradiation device. The irradiation device includes an irradiation area, a loading and unloading area, an automatic transmission system, a lifting device, and a cargo box. The automatic transmission system is a closed loop. The automatic transmission system is used to carry multiple lifting devices through the loop sequentially through the loading and unloading area and the irradiation area. One lifting device is used to hold two cargo boxes, and one cargo box is used to hold six boxes. The irradiation device is monitored and controlled by a control system. The control system provides a first user interface, which includes a layout diagram of the irradiation device, and the layout diagram of the irradiation device is used to display the real-time position of each of the irradiation device's lifting devices. An infrared signal receiving device is installed at the boundary between the loading and unloading area and the irradiation area. The position sensor on the lifting device is an infrared emitting device. When the lifting device is located at the boundary between the loading and unloading area and the irradiation area, the infrared signal emitted by the infrared emitting device is received by the infrared signal receiving device. When an infrared signal emitted by the spreader is received, the boundary between the loading / unloading area and the irradiation area is determined as the new starting position of the spreader, and the real-time position of the spreader used for display in the layout diagram is determined based on the new starting position, the infrared signal reception time, and the moving speed. The control system provides a second user interface, which includes a configuration window with input areas for multiple control parameters, including movement speed, number of rotations, and dose requirements. In response to configuration operations on the configuration window, the system determines the target control parameter values. Based on the target control parameter values, the system controls the irradiation device to perform multiple irradiations on the sterilized disposable polyvinyl alcohol foam wound dressing.

2. The method according to claim 1, characterized in that, The moving speed is preset and updated based on the time between two adjacent infrared signal receptions and the loop length.

3. A control device, characterized in that, include: A display module is used to provide a first user interface, the first user interface including a layout diagram of the irradiation device, the layout diagram of the irradiation device being used to display the real-time position of each of the irradiation device's lifting devices; wherein, each lifting device includes a position sensor, and the real-time position of the lifting device displayed in the layout diagram is determined based on the position data of the position sensor; The update module is used to determine the real-time position of the spreader used for display in the layout map based on the position data of the position sensor; The disposable polyvinyl alcohol foam wound dressing material, which has been sterilized once, is irradiated multiple times by an irradiation device. The irradiation device includes an irradiation area, a loading and unloading area, an automatic transmission system, a lifting device, and a cargo box. The automatic transmission system is a closed loop. The automatic transmission system is used to carry multiple lifting devices through the loop sequentially through the loading and unloading area and the irradiation area. One lifting device is used to hold two cargo boxes, and one cargo box is used to hold six boxes. The update module is also used to monitor and control the irradiation device through the control system; to provide a first user interface through the control system, the first user interface including a layout diagram of the irradiation device, the layout diagram of the irradiation device being used to display the real-time position of each lifting device of the irradiation device; to set an infrared signal receiving device at the boundary between the loading / unloading area and the irradiation area, the position sensor on the lifting device being an infrared emitting device, the infrared signal emitted by the infrared emitting device being received by the infrared signal receiving device when the infrared signal emitted by the lifting device is received; when the infrared signal emitted by the lifting device is received, the boundary between the loading / unloading area and the irradiation area is determined as the new starting position of the lifting device, and the real-time position of the lifting device displayed in the layout diagram is determined based on the new starting position, the infrared signal reception time, and the moving speed; The display module is also used to provide a second user interface through the control system, the second user interface including a configuration window, the configuration window including an input area for multiple control parameters, the multiple control parameters including movement speed, number of rotations and dose requirements; in response to a configuration operation on the configuration window, determine the input target control parameter value; and based on the target control parameter value, control the irradiation device to irradiate the sterilized disposable polyvinyl alcohol foam wound dressing material multiple times.

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