76 results about "Radiation Sterilization" patented technology

The irradiation sterilization device comprises a conveyor, supporting legs are fixedly connected to the bottom of the conveyor at equal intervals, a conveying belt and a conveying roller are arranged in the conveyor, a first motor is arranged on one side of the conveyor, one end of an output shaft of the first motor is fixedly connected with one end of the conveying roller, and the other end of the output shaft of the first motor is fixedly connected with the conveying roller. A first mounting plate and a second mounting plate are fixedly connected to the top of the conveyor, a connecting plate is slidably connected between one side of the first mounting plate and one side of the second mounting plate, a connector is arranged in the connecting plate, and an irradiation sterilizer body is arranged at the bottom of the connector. According to the irradiation sterilization device for the alginate dressings disclosed by the utility model, the connecting plate is controlled to move up and down through the adjusting component, so that the distance between the irradiation sterilizer body and the conveying belt can be accurately adjusted. In this way, it can be ensured that each area is fully irradiated, the situation that some areas are irradiated too much or too little is avoided, and therefore the sterilization effect is improved.

The embodiment of the invention provides a detachable detection device and a needle assistor, the detection device is used for detecting blood glucose, the detection device comprises a detection assembly, a sensor assembly and a needling assembly, the detection assembly comprises a flat shell, the outer wall of the bottom of the flat shell is sunken inwards to form a containing cavity, the sensor assembly comprises a base and a probe, the base is provided with a second via hole, and the probe is arranged in the containing cavity. The base is detachably clamped in the containing cavity, part of the probe is located in the base, part of the probe extends out of the hole wall of the second through hole and extends towards the side away from the detection assembly, and when the base is located in the containing cavity, the probe is electrically connected with the detection circuit board. According to the embodiment of the invention, the detection assembly and the sensor assembly are mutually detachable and can be clamped, so that only the sensor assembly is sterilized instead of the detection assembly in the sterilization process, and the influence on the detection circuit board in the detection assembly in the electromagnetic wave or irradiation sterilization process can be avoided; the product yield of the detection device is improved.

The invention relates to the technical field of irradiation sterilization, in particular to a safety monitoring method based on irradiation sterilization, which comprises the following steps: closing a box door; detecting the actual leakproofness between the box door and the box body, judging whether the box door and the box body are closed or not, and determining to turn on the sterilizing lamp group or adjust the actual leakproofness between the box door and the box body according to a judgment result; based on a comparison result of the real-time working parameters and the preset working parameters of the sterilizing lamp group, judging a safety evaluation value of the lamp group; determining an environmental safety evaluation value based on the real-time environmental parameters and preset environmental parameters; adjusting the real-time working parameters of the sterilizing lamp group based on the lamp group safety evaluation value and the environment safety evaluation value; the to-be-sterilized sample is sterilized according to the adjusted sterilizing lamp set, the sterilizing effect of the sterilized to-be-verified sample is detected, and the preset working parameters are adjusted or sterilization is completed on the basis of comparison between the sterilizing effect and a preset effect. The safety of the sterilization environment in the sterilization process is improved.

The invention discloses a carboxymethyl chitosan-based composite gel composition and a preparation method thereof, and relates to the field of gel compositions.The carboxymethyl chitosan-based composite gel composition is formed by taking carboxymethyl chitosan as a base material, an organic amine compound which contains amido and the amido is not completely shielded by hydrophobic groups is added into a second solution, and the carboxymethyl chitosan-based composite gel composition is obtained. A stable salt dispersion liquid is formed after a neutralization reaction is performed until the pH is 6.5-8.0, the stable salt dispersion liquid is mixed with the first solution to form the composite gel, the composite gel composition prepared by matching the specific process with the raw materials can keep relatively stable viscosity after radiation sterilization, compared with conventional gel, the viscosity change rate of the composite gel after radiation sterilization is reduced, and the stability of the composite gel is improved. The quality and the using effect of the product are more favorably maintained, and the method is particularly suitable for being applied to pharmaceutical preparations, medical instruments or hygienic products and the like.

The invention belongs to the technical field of air purification, particularly relates to multi-stage cavity type air inactivation equipment, and aims to solve the problems that existing equipment wastes heat energy, is poor in airflow regulation and control and is easy to saturate activated carbon. The equipment comprises a machine shell, and a heat exchange section, a radiation sterilization section, a high-temperature inactivation section and a control unit are arranged in the machine shell; two high-temperature inactivation cavities connected in series and a wind power path regulation and control structure are arranged in the high-temperature inactivation section, and the air flowing path can be adjusted according to the airflow velocity; a radiation sterilization chamber, a light hydrogen ion generator and an activated carbon filter layer fixed on rotating blades are arranged in the radiation sterilization section, and the rotating blades can drive the filter layer to turn over for regeneration; the heat exchange section adopts an inner and outer double heat exchange tube structure, the heat exchange efficiency is improved by matching with a spiral guide vane and a radiating fin, the equipment realizes the effects of efficient inactivation, energy consumption reduction and maintenance cost reduction through the design of multi-stage collaborative sterilization, dynamic airflow regulation and control, heat energy recovery and activated carbon regeneration, and is suitable for various scenes with higher requirements on air purification.

The present disclosure sets forth an automated peritoneal dialysis (“PD”) system, which enables the re-use of certain disposable components. The APD system includes a sterilization source, such as a steamer or a UV radiation light source that sterilizes a disposable filter. During therapy, the disposable filter is connected to a PD fluid line and to a patient's catheter. Post-therapy, the disposable filter is disconnected from the patient's catheter, but remains connected to the PD fluid line, and the disposable filter undergoes steam or UV radiation sterilization.

A pierceable plug for closing off a piercing end of a needle is described herein. The plug has an end that is configured to be pierced by the needle to close off the piercing end of the needle. The plug may be radiation sterilizable and may be made of a material that includes an antimicrobial agent. The plug may be used to close off a needle end that is in fluid communication with a radioactive substance.

The application discloses a gelatin-based medical consumable and a sterilization process thereof. The consumable comprises a gelatin main material and a biocompatible auxiliary component. The gelatin is pre-crosslinked to form a three-dimensional network structure, and can be made into a porous sponge, a film, a fiber felt, a particle, a columnar body, a sheet body or a gel block. The sterilization process is used for a pre-crosslinked consumable which has been formed. Radiation sterilization, ethylene oxide sterilization or combined sterilization is adopted. According to the sterilization route, the water content, the packaging atmosphere, the radiation dose, the ethylene oxide concentration and the resolution condition are controlled, so that the sterilization treatment mainly plays a sterilization role and does not damage the gelatin main network. After sterilization, the strength retention rate of the consumable is not less than 85%, the swelling ratio retention rate is not less than 80%, the degradation time change rate is ± 20%, and the gel fraction change rate is not more than 10%.

The invention relates to the technical field of composite films for BIB packaging inner bags, and discloses a high-barrier single-material sterile BIB packaging bag and a preparation process thereof, the preparation process comprises the following steps: using vanillin, 3-bromopropene, gallic acid, diethylenetriamine and 1, 3-acetonedicarboxylic acid as raw materials to prepare a gallic acid type grafting monomer; the preparation method comprises the following steps: carrying out melt grafting modification treatment on LDPE (Low-Density Polyethylene) resin by using a gallic acid type grafting monomer, and compounding with graphene oxide through pi-pi accumulation action and hydrogen-bond interaction to prepare the graphene-polyethylene composite master batch with an antioxidant function; the preparation method comprises the following steps: preparing a polyethylene master batch, introducing the master batch into a seven-layer co-extruded film to prepare a polyethylene co-extruded film, and preparing the high-barrier single-material sterile BIB packaging bag by taking the co-extruded film as a raw material of an inner bag of the BIB packaging bag. The polyethylene co-extruded film prepared by the invention still shows excellent mechanical properties and barrier properties after being treated by a radiation sterilization technology, and can be used instead of an existing aluminized polyester bag.

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.

The application discloses an antibacterial composite metal coating based on protective area etching and galvanic corrosion and a preparation method and equipment thereof, and the method comprises the following steps: 1) forming a composite coating by vapor depositing a metal transition layer with a standard electrode potential higher than silver, a silver island intermediate layer and electrochemically depositing a silver layer on the surface of a pretreated titanium-based equipment; 2) performing isolation line etching on the outside of the coating area boundary of the equipment surface by laser; 3) preparing a hydrophobic protective coating on the surface of the reserved coating area; 4) filling paraffin in the isolation line groove to form a temporary hole sealing layer; 5) immersing the equipment in an acidic electrolyte to selectively dissolve the coating in the to-be-stripped area in a sectional stripping mode; 6) removing the paraffin in the isolation line groove and performing trimming by laser; and 7) obtaining the coating material after mechanical polishing, cleaning, drying, vacuum packaging and radiation sterilization. The high-strength coating can realize efficient sterilization through the galvanic corrosion effect and prevent coating abrasion during use.

The invention provides an irradiation sterilization device for packaging food, and relates to the field of food sterilization, the irradiation sterilization device comprises a radiation sterilization cabinet, the inner side wall of the radiation sterilization cabinet is fixedly provided with a holder, the side wall of the holder is rotatably connected with a supporting shaft through a bearing, and the top of the holder is fixedly provided with a conveying rail; the radiation sterilization cabinet is internally provided with a sterilization lamp and an X-ray tube, and further comprises a driving part, a conveying part, a chain wheel disc and a conveying state adjusting part. When food needs to be rotated, an electric push rod can completely extend out to drive a clamping frame to move, so that an inclined panel is located below a hemisphere, and the hemisphere slides downwards under the extrusion of the inclined panel, so that a rotating column drives a drag hook to rotate the food by 90 degrees for radiation sterilization; and the ejector rod extends out to push the stop block to rotate and block the front end of the rotating rod to limit the rotation of the rotating rod, so that the food can be subjected to continuous radiation sterilization at the position.

The present invention relates to the technical field of radiation disinfection of Chinese medicinal materials, and specifically to radiation disinfection equipment, a method for disinfecting medicinal materials, and a processing technology for Chinese medicine preparations. Slide sleeves are welded on both sides of the outside of the limit plate, and support plates are fixed on both sides of the top of the two groups of slide sleeves by bolts. A second bearing seat is fixed on both sides of the top of the support plate by bolts. Four groups of fixing parts for supporting the rotating cylinder are installed on both sides of the outside of the rotating cylinder. A support frame is welded on the outside of the fixing part, and both sides of the center position of the support frame are movably arranged in the second bearing seat through an axis. The present invention uses the radiation disinfection lamp to irradiate and disinfect the medicinal materials. Compared with the traditional device, this device can disinfect all positions of the medicinal materials, and the disinfection is more complete. At the same time, it solves the problem that subsequent drying is required after traditional steam disinfection, and at the same time, it also avoids the traditional high-temperature disinfection from destroying the medicinal properties of Chinese medicine.

This invention relates to the field of radiation sterilization technology and discloses an irradiation sterilization device for cosmetics, comprising: support legs and a transmission belt frame mounted on top of them. A rotating shaft is disposed inside the transmission belt frame, and a conveying platform is disposed outside the rotating shaft. An electron beam chamber is disposed outside the transmission belt frame, and a support platform is fixedly mounted on the top of the electron beam chamber. Vertical poles are symmetrically fixed on the top of the support platform, and a retaining pin is disposed on the lower surface of the top of each vertical pole. This invention uses a follow-up shielding part to automatically conform to the top of the cosmetics and block scattered radiation, thus preventing excessive radiation burns to the cosmetics while eliminating irradiation dead zones, resulting in more uniform and thorough sterilization. A linkage part directly links the height of the cosmetics with the conveying speed, adapting to cosmetics of different heights and pre-matching a reasonable irradiation time. A temperature control and speed adjustment part automatically fine-tunes the conveying speed based on temperature feedback, ensuring that the irradiation dose remains stable within the acceptable range.

The invention relates to optochemical sensor elements for optochemical sensors, the sensor layer of which contains at least one non-volatile substance that enables radiation sterilization and subsequent calibration without a liquid calibration medium, and to a method for dry calibration of such an optochemical sensor element.

The utility model relates to the technical field of irradiation sterilization equipment, in particular to a driving device with a gamma ray protection mechanism, which comprises a support frame, two blocking mechanisms, a shielding mechanism and a position adjusting mechanism, the top of the support frame is fixedly connected with a protection shell, and the tops of the two ends of the protection shell are fixedly connected with fixing rods. According to the irradiation sterilization device, the shielding mechanism is arranged at the top of the inner side of the protection shell, the irradiation sterilization device body is conveniently driven and controlled to be started by utilizing the driving controller, the protection plate is conveniently opened and closed through the first air cylinder, then the first shielding shell and the two second shielding shells move downwards by starting the second air cylinder, and the irradiation sterilization device is convenient to use. According to the radiation sterilization device, the first shielding shell and the two second shielding shells are arranged, so that the first shielding shell and the two second shielding shells cover the outer side of an object, gamma rays emitted by the radiation sterilization device body are shielded through the first shielding shell and the two second shielding shells, the gamma rays can be shielded and absorbed through the protection shell and the two protection plates, and dual protection is achieved.

An animal product is provided that includes a plurality of colorful absorbent strips that form a puck. The plies can include at least one ply of fibrous material. In some inventive embodiments, the colorful absorbent strips have a height to length ratio from about 1:1 to about 1:200. While in other inventive embodiments, the adjuvants operative to enhance performance of said puck or entertainment value of said puck for a laboratory animal. The puck is amenable to radiation sterilized.

The present application belongs to the technical field of dairy product production and processing, and particularly relates to a dairy product filling equipment with a cleaning function, which comprises a self-water-supply cleaning mechanism, inverted emulsion bottles are placed at equal intervals on an emulsion bottle inverted conveying belt and move towards the top of the self-water-supply cleaning mechanism, an emulsion bottle overturning mechanism is arranged below the output end of the emulsion bottle inverted conveying belt, the emulsion bottle overturning mechanism comprises a positioning assembly, and the positioning assembly is used for automatically positioning and overturning the emulsion bottle pressed by the pressing machine; an intermittent hole-type dryer is used for cyclic hot air drying and infrared radiation sterilization drying of the emulsion bottle at a right angle; a stirring filling machine is used for automatically filling the emulsion bottle transferred to the position directly below the stirring filling machine, the stirring filling machine is internally provided with a stirring assembly, and the stirring assembly is used for real-time stirring of the dairy to be filled. The equipment is automatically operated throughout the whole process, has a high-quality cleaning function, and has the abilities of drying and sterilization and uniform filling.

The invention belongs to the technical field of ganoderma lucidum spore powder production and processing equipment, and particularly relates to a ganoderma lucidum spore powder sterilization and drying integrated device which comprises a mounting base and an HEPA ventilation box arranged at the upper end of the mounting base. By arranging the middle positioning pile, the coaxial positioning sleeve, the inner circulation air pipe, the spiral air port, the infrared radiation sterilization integrated plate, the inner closed spiral slide way, the distributed ventilation holes and the powder collecting channel, when the structure is used, spore powder falls into the powder collecting channel through screening of the screen and synchronously rotates to slide down. In the process, the air pump conveys air into the inner closed spiral slide way through the inner circulation air pipe and the spiral air port, and the air forms narrower airflow through the spiral air port to form internal cyclone between the two sides of the inner closed spiral slide way to turn over the spore powder. An infrared transmitting tube at the bottom of an infrared radiation sterilization integrated plate at the top of the inner closed spiral slide way releases middle and far infrared rays to penetrate through spore powder, so that molecular resonance heating drying and infrared sterilization are synchronously carried out.

The invention discloses a disinfection device for irradiation sterilization, which belongs to the technical field of disinfection and comprises a rack, an upper guide rail, a lower guide rail and a lower guide rail, a strip-shaped groove is formed in the lower guide rail; the upper bracket and the lower bracket are arranged in the upper guide rail and the lower guide rail in a sliding mode respectively and used for placing articles, and rotating shafts are fixedly arranged at the ends of the upper bracket and the lower bracket. The overturning structures are respectively positioned in grooves below the strip-shaped groove and the annular groove, are used for overturning the upper bracket and the lower bracket and can be used for resetting the lower bracket; the transfer structure is used for transferring the articles on the upper guide rail to the lower guide rail; the buffer part is arranged in the strip-shaped groove; the reciprocating structure is used for driving the upper guide rail and the lower guide rail to reciprocate; a one-way flashboard; a unidirectional butt joint rack; the resetting structure is used for resetting the upper bracket to a disinfection angle and a feeding angle; the upper bracket and the lower bracket can simultaneously carry out irradiation sterilization on multiple surfaces at a time when carrying articles, and can carry out irradiation sterilization on the upper bracket and the lower bracket in a no-load state, so that the irradiation times of the articles and the attached bacteria and risk are reduced.

The application provides a turnover type irradiation sterilization device and method, relates to the technical field of radiation sterilization, and the device comprises an irradiation box body, a feeding belt conveying part, a discharging belt conveying part, an irradiation mechanism and a turnover driving assembly. The irradiation mechanism is provided with symmetrical rotating supports and a belt bearing assembly, can clamp a protective article and realize 180-degree turnover, and can make the front and back surfaces be exposed to the lower part of an irradiation generation module in sequence for sterilization. An adjusting unit controls the opening and closing and spacing of the belt bearing assembly, ensures stable conveying and clamping, and the turnover driving assembly synchronously drives the irradiation generation module to lift, so that interference is avoided. During sterilization, the protective article is first sent into the irradiation box body by the conveying belt, is turned over after first irradiation, is subjected to second irradiation, and is finally output by the discharging belt. The application adopts a closed automatic design, radiation is not leaked out, sterilization is complete and high in efficiency, and is suitable for the large-scale production of medical protective articles such as masks and protective clothes.

A monolithic, vertically integrated, light emitting diode (LED) device (200) for radiative sterilization includes a substrate (202), a deep ultraviolet (DUV) active region (208) located on the substrate (202) and configured to generate DUV light (209), a visible (VIS) active region (220) located on top of the DUV active region (208) and configured to generate VIS light (226), and first and second electrodes (234, 236) configured to inject an electrical current that simultaneously excites the DUV active region (208) and the VIS active region (220) to simultaneously generate the DUV light (209) and the VIS light (226).

This paper describes a method for producing a sterile in-situ gel based on solvent removal technology, and the resulting product. Compared to conventional aseptic manufacturing methods for in-situ gel formulations, this method adds a volatile solvent during production to reduce the viscosity of the formulation solution, facilitating filtration and sterilization. The volatile solvent can then be removed by various methods without adversely affecting the final in-situ gel formulation. Research data shows that the volatile solvent residues in in-situ gel formulations produced using this method meet safety standards. Compared to formulations produced using the conventional radiation sterilization method, the types and amounts of degradation impurities in the polymer and active pharmaceutical ingredients are both reduced, further improving the safety of the formulation.

The utility model relates to the technical field of medicinal packaging materials, and discloses a high-barrier high-temperature-resistant radiation-resistant medical composite film which comprises an inner film and an outer film, the inner film comprises a barrier layer, a waterproof layer, a high-temperature-resistant layer, an anti-radiation layer and an antibacterial layer, and the barrier layer, the waterproof layer, the high-temperature-resistant layer, the anti-radiation layer and the antibacterial layer are fixedly connected through adhesive layers; the outer film comprises an aluminum foil layer, a nylon layer and an aluminum oxide coating layer. According to the high-barrier, high-temperature-resistant and radiation-resistant medical composite film, gas permeation is effectively prevented through the barrier layer, it is ensured that drugs are not affected by external gas, the original chemical stability and drug effect of the drugs are kept, the waterproof layer ensures that the interior of a package is dry, and moisture invasion is prevented, and the outer film comprises the aluminum foil layer, the nylon layer and the aluminum oxide coating layer. The protection effect and the service life of the package are improved under the combined action of the materials, and the composite film is suitable for packaging various medical supplies, and is particularly suitable for products needing long-term storage, high-temperature sterilization or radiation sterilization.

The invention relates to optochemical sensor elements for optochemical sensors containing an additive that enables radiation sterilization and subsequent calibration without a liquid calibration medium, as well as a method for dry calibration of such an optochemical sensor element.

The invention discloses quick-acting repair powder for treating burns, scalds, sores and ulcers and a preparation method of the quick-acting repair powder, and the quick-acting repair powder achieves multiple effects of resisting inflammation, relieving pain, promoting tissue regeneration, repairing and the like through specific particle size control and a sterilization process. Clinical data show that the preparation has a remarkable curative effect on deep III-degree burn, pustule ulceration and postoperative infected wounds, the healing period can be shortened by 50% or above, and no scar is left. According to the preparation method, low-temperature crushing and radiation sterilization are combined, and the biological activity of active ingredients is reserved to the maximum extent.

The irradiation and sterilization all-in-one machine comprises a machine box, and the interior of the machine box is divided into a drying area, a grinding area, a bagging and sealing area and an irradiation and sterilization area; a feeding port is formed above the drying area, and a hot air drying assembly is arranged at the top of the drying area; a first cooling area is arranged between the drying area and the grinding area, a first cooling assembly is arranged in the first cooling area, a grinding machine is arranged in the grinding area, and a first discharging inclined groove is formed in the side face of the grinding machine. A vacuum sealing device is arranged in the bagging sealing area; a second cooling area is arranged between the bagging sealing area and the irradiation sterilization area, and a second cooling assembly is arranged in the second cooling area; and an electron beam generator is arranged in the irradiation sterilization area. The operation steps of medicinal material drying, processing into powder, vacuum sealing subpackaging, cooling pretreatment, irradiation sterilization and the like are integrated in the same machine box, the probability that medicinal materials are polluted by bacteria in air in the processing process is reduced, the medicine effect of medicinal powder is further guaranteed, and the medication safety is improved.

The invention provides an irradiation sterilization method and a quality control method of fresh and wet rice flour food, and belongs to the technical field of food sterilization. The irradiation sterilization method of the fresh and wet rice flour food comprises the following steps: after the fresh and wet rice flour food is produced, vacuum packaging is performed, and then irradiation sterilization is performed; the irradiation absorbed dose of the irradiation sterilization is 1-40 kGy; the quality control method for the fresh and wet rice flour food subjected to irradiation sterilization comprises the following steps: after the fresh and wet rice flour food is placed for 0 day, 1 month, 3 months, 5 months, 7 months, 9 months and 12 months, carrying out trafficability evaluation on sensory indexes, physicochemical indexes and microbiological indexes on the fresh and wet rice flour food, and determining that the quality of the fresh and wet rice flour food is qualified through all rounds of detection. The fresh and wet rice flour food can be stored for at least 12 months after irradiation sterilization, the shelf life is prolonged, the irradiation preservation technology and the corresponding product quality control method provide powerful technical guarantee for the fresh and wet rice flour food, and the stability of the production quality of the fresh and wet rice flour food is improved.

The invention discloses an ultraviolet sterilization lamp set with a row power output adjusting function, relates to the technical field of ultraviolet sterilization lamps, and aims at the basic principle of ultraviolet sterilization that ozone is generated in a closed space in the continuous radiation process of the ultraviolet sterilization. The basic technical point in the invention is as follows: the setting height and the setting position of the ultraviolet lamp body are firstly limited, and the essence is that the ultraviolet lamp body is arranged in a row in cooperation with an environment base layer so as to carry out a global 360-degree radiation sterilization process. The sterilization effect of the ultraviolet lamp in the corresponding position is fed back in real time by combining the ozone concentration in the local position, the essence is that the upper limit exists when air is ionized into ozone, and when the fluctuation degree of the ozone concentration is reduced or even does not fluctuate, the whole sterilization effect reaches a relatively good state; the sterilization effect can be maintained by reducing the output power of the ultraviolet lamp or turning off the ultraviolet lamp.

The invention discloses a duck liver fresh-keeping process based on low-temperature heat treatment and a processing device. The duck liver fresh-keeping process comprises the following steps: cleaning and sorting duck livers; performing low-temperature heat treatment on the cleaned and sorted duck liver in a low-temperature heat treatment device; placing the duck liver subjected to low-temperature heat treatment in a high-pressure treatment device for high-pressure treatment; placing the duck liver subjected to high-pressure treatment in a radiation sterilization device, and performing radiation sterilization treatment; and packaging the duck liver subjected to radiation sterilization treatment. According to the method, bacteria, molds, saccharomycetes and bacterial spores can be thoroughly inactivated at a deeper level by combining high-pressure treatment and radiation sterilization technologies, the quality of microorganisms inside and outside the product is ensured to meet the standard, so that the shelf life of the product is effectively prolonged, the survival possibility of the microorganisms can be effectively eliminated by comprehensively applying multiple sterilization technologies, and the product quality is improved. The existence of pathogenic microorganisms in the food is reduced, the safety of the food is improved, and the risk of food-borne diseases caused by bacterial infection is reduced.