A medical sterile pet packaging bag gamma ray irradiation resistance testing device

Abstract

The utility model relates to PET packaging bag resistance test technical field, and disclose a kind of medical sterile PET packaging bag gamma ray irradiation resistance test device, the medical sterile PET packaging bag gamma ray irradiation resistance test device, including host computer, fixed mounting is installed in host computer, test component is provided in host computer, the test component includes control module.This medical sterile PET packaging bag gamma ray irradiation resistance test device, to make the device satisfy the test standard of medical PET packaging bag irradiation resistance, by setting test component, the component cooperation control module regulation and control hydraulic device to push sealing cover closure, so that bottom box forms airtight test space;Top and bottom irradiation simulation equipment synchronously exert simulated gamma ray from the upper and lower sides of packaging bag, restore actual irradiation scene, adapt to the PET packaging bag test requirement of different thickness, and negative pressure equipment extracts air in bottom box by connecting barrel, simulates low-pressure environment in packaging bag storage and transportation.

Description

Technical Field

[0001] This utility model relates to the field of PET packaging bag tolerance testing technology, specifically a gamma ray irradiation tolerance testing device for medical sterile PET packaging bags. Background Technology

[0002] In the field of medical packaging, PET packaging bags are widely used for sterile packaging of products such as surgical instruments, implantable medical devices, and sterile dressings due to their high transparency and good barrier properties. Gamma ray irradiation is the core sterilization method for these packaging bags.

[0003] The device consists of a gamma-ray simulation irradiation module, a performance testing unit, a temperature control system, a sample fixing mechanism, and a data acquisition system. The PET packaging bag sample is fixed on the fixture, placed in the shielded chamber, and the irradiation dose and time are set. The electron beam simulates gamma-ray irradiation. After irradiation, the sample is automatically transferred to the testing unit, where tensile strength, haze, and sealing tests are performed in sequence. The system compares the results with standard thresholds to determine the tolerance level.

[0004] However, the above-mentioned equipment has certain shortcomings in use. Traditional testing devices can only conduct gamma irradiation at normal temperature and pressure, and the test results deviate greatly from the actual use scenario. This causes some packaging bags that are qualified in the laboratory to break during actual transportation due to the cumulative effect of environmental factors. In view of this, we propose a gamma irradiation tolerance testing device for medical sterile PET packaging bags. Utility Model Content

[0005] The purpose of this invention is to provide a gamma ray irradiation tolerance testing device for medical sterile PET packaging bags, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A gamma ray irradiation tolerance testing device for sterile medical PET packaging bags includes a main unit, a mounting frame fixedly mounted on the main unit, a display screen mounted on the mounting frame, and a testing component mounted on the main unit, the testing component comprising: A control module is fixedly installed on the host, a base box is fixedly installed on the control module, a sealing cover is hinged to the base box, and a top irradiation simulation device is fixedly installed inside the sealing cover; A bottom irradiation simulation device is fixedly installed inside the bottom box, a camera is fixedly installed inside the bottom box, and a connecting cylinder is fixedly installed on the bottom box; A negative pressure device is fixedly installed at one end of the connecting cylinder, a filter plate is fixedly installed at the other end of the connecting cylinder, and a placement net is fixedly installed inside the bottom box.

[0007] In a further embodiment, a hydraulic device is hinged to one end of the outer surface of the base box, and the piston end of the hydraulic device is hinged to the outer surface of the sealing cover.

[0008] In a further embodiment, the hydraulic device, camera, connecting cylinder, negative pressure device, and filter plate are provided in multiple sets.

[0009] In a further embodiment, the placement net is positioned above the bottom irradiation simulation device, and multiple sets of cameras are positioned on both sides of the placement net.

[0010] In a further embodiment, the base box is provided with an auxiliary component, which includes a support pole. The support pole is fixedly installed on the placement net, a rubber head is fixedly installed on the top of the support pole, a guardrail is fixedly installed on the placement net, a sealing groove is opened on the base box, and a sealing ring is fixedly installed on the sealing cover.

[0011] In a further embodiment, multiple sets of the uprights, rubber heads, and guardrails are provided, with the uprights and rubber heads positioned above the placement net.

[0012] In a further embodiment, the guardrail is positioned near the negative pressure equipment, and the sealing groove corresponds to the sealing ring.

[0013] Compared with the prior art, this utility model provides a gamma ray irradiation tolerance testing device for medical sterile PET packaging bags, which has the following beneficial effects: 1. This medical sterile PET packaging bag gamma irradiation tolerance testing device, in order to meet the testing standards for the irradiation tolerance of medical PET packaging bags, is equipped with a testing component. This component, in conjunction with the control module, regulates the hydraulic device to push the sealing cover to close, so that the bottom box forms a sealed testing space. The top and bottom irradiation simulation devices simultaneously apply simulated gamma rays from the top and bottom sides of the packaging bag, restoring the actual irradiation scene and adapting to the testing needs of PET packaging bags of different thicknesses. The negative pressure device extracts air from the bottom box through the connecting cylinder to simulate the low-pressure environment during the storage and transportation of the packaging bag. The filter plate prevents external impurities from entering and affecting the test. The net supports the packaging bag to avoid direct contact with the equipment and ensure uniform irradiation. Multiple sets of cameras capture the status of the packaging bag in real time and transmit the data to the control module and display screen, so that the operator can observe the deformation, damage and other conditions of the packaging bag during the irradiation process.

[0014] 2. This medical sterile PET packaging bag gamma irradiation tolerance testing device, in order to ensure the accuracy and repeatability of the irradiation tolerance test results, is equipped with auxiliary components. These components, together with multiple sets of uprights, are fixed to the placement net. The top rubber head flexibly supports the bottom of the packaging bag, avoiding scratches caused by rigid contact between the packaging bag and the placement net. The protective railing is set on the side close to the negative pressure equipment to prevent the packaging bag from shifting into the equipment area under negative pressure, ensuring that the packaging bag is always within the irradiation test range. When the sealing cap is closed, the sealing ring is embedded in the sealing groove of the bottom box, enhancing the sealing of the test space and preventing negative pressure leakage from affecting the environmental simulation effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3 This is a first-view schematic diagram of a portion of the structure of this utility model in an open state; Figure 4 This is a second-view schematic diagram of a portion of the structure of this utility model in an open state; Figure 5 This is a schematic diagram of the internal structure of the bottom box of this utility model; Figure 6 This is a schematic diagram of part of the structure of this utility model; Figure 7 This is a partial structural schematic diagram from another perspective of the present invention; Figure 8 This is a schematic diagram of the mesh placement structure of this utility model; Figure 9 This utility model Figure 8 A magnified structural diagram of region A in the middle.

[0016] Explanation of icon numbers: 1. Main unit; 2. Mounting bracket; 3. Display screen; 4. Test components; 41. Control module; 42. Base box; 43. Sealing cover; 44. Hydraulic device; 45. Top irradiation simulation device; 46. Bottom irradiation simulation device; 47. Camera; 48. Connecting cylinder; 49. Negative pressure device; 410. Filter plate; 411. Placement net; 5. Auxiliary components; 51. Upright pole; 52. Rubber head; 53. Guardrail; 54. Sealing groove; 55. Sealing ring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0019] Please see Figures 1-9 This utility model provides a technical solution: A gamma ray irradiation tolerance testing device for medical sterile PET packaging bags includes a main unit 1, a mounting frame 2 fixedly mounted on the main unit 1, and a display screen 3 mounted on the mounting frame 2.

[0020] In one embodiment of this utility model, a test component 4 is provided on the host 1. The test component 4 includes a control module 41, which is fixedly installed on the host 1. A base box 42 is fixedly installed on the control module 41. A sealing cover 43 is hinged to the base box 42. A top irradiation simulation device 45 is fixedly installed inside the sealing cover 43. A bottom irradiation simulation device 46 is fixedly installed inside the base box 42. A camera 47 is fixedly installed inside the base box 42. A connecting cylinder 48 is fixedly installed on the base box 42. A negative pressure device 49 is fixedly installed. A filter plate 410 is fixedly installed at one end of the connecting cylinder 48, and a placement net 411 is fixedly installed inside the bottom box 42. One end of a hydraulic device 44 is hinged to the outer surface of the bottom box 42, and the piston end of the hydraulic device 44 is hinged to the outer surface of the sealing cover 43. Multiple sets of hydraulic devices 44, cameras 47, connecting cylinders 48, negative pressure devices 49 and filter plates 410 are provided. The placement net 411 is set above the bottom irradiation simulation device 46, and multiple sets of cameras 47 are set on both sides of the placement net 411.

[0021] In this embodiment, before testing, the sterile PET packaging bag to be tested is placed on the placement net 411 inside the bottom box 42. The placement net 411 suspends the packaging bag, preventing direct contact with the bottom irradiation simulation device 46, ensuring that the upper and lower surfaces of the packaging bag can receive irradiation evenly. The control module 41 is then activated, driving the hydraulic device 44 on the outer surface of the bottom box 42 to extend, pushing the sealing cover 43 to rotate and close around the hinge point of the bottom box 42, thus forming a sealed test space in the bottom box 42. Subsequently, the negative pressure device 49 is activated, drawing air out of the bottom box 42 through the connecting cylinder 48, simulating the packaging bag during storage and transportation. In the event of a low-pressure environment, once the preset negative pressure value is reached inside the bottom box 42, the top irradiation simulation device 45 and the bottom irradiation simulation device 46 are activated. The two devices simultaneously apply simulated gamma rays from both the top and bottom sides of the packaging bag, accurately reproducing the actual irradiation disinfection scenario and adapting to the testing requirements of PET packaging bags of different thicknesses. During the test, multiple sets of cameras 47 on both sides of the net 411 capture the changes in the shape of the packaging bag in real time and transmit the image data to the control module 41. After processing the data, the control module 41 displays it synchronously on the display screen 3 of the mounting frame 2, which facilitates the operator to monitor the test process in real time and record key test node data.

[0022] In one embodiment of this utility model, an auxiliary component 5 is provided on the bottom box 42. The auxiliary component 5 includes a pole 51. The pole 51 is fixedly installed on the placement net 411. A rubber head 52 is fixedly installed on the top of the pole 51. A guardrail 53 is fixedly installed on the placement net 411. A sealing groove 54 is opened on the bottom box 42. A sealing ring 55 is fixedly installed on the sealing cover 43. Multiple sets of poles 51, rubber heads 52 and guardrails 53 are provided. The poles 51 and rubber heads 52 are located above the placement net 411. The guardrail 53 is located on the side close to the negative pressure equipment 49. The sealing groove 54 and the sealing ring 55 are positioned correspondingly.

[0023] In this embodiment, multiple sets of uprights 51 on the placement net 411 provide flexible support from the bottom of the packaging bag. The rubber heads 52 at the top of the uprights 51 contact the packaging bag, avoiding surface scratches caused by rigid contact between the packaging bag and the uprights 51. At the same time, it can prevent the packaging bag from sagging excessively under negative pressure, ensuring that it is always within the effective testing range of the irradiation equipment. The protective railing 53 on the side of the placement net 411 near the negative pressure equipment 49 can prevent the packaging bag from shifting towards the connecting cylinder 48 due to airflow during the negative pressure extraction process, avoiding the packaging bag from clogging the connecting cylinder 48 and affecting the stability of the negative pressure. In addition, when the sealing cover 43 is closed, its bottom sealing ring 55 is embedded in the sealing groove 54 at the top of the bottom box 42, enhancing the airtightness of the bottom box 42, preventing leakage of the negative pressure environment, and ensuring the stability of environmental parameters throughout the entire testing process.

[0024] All electrical components appearing in this application are electrically connected to the controller and 220V AC mains power. The controller is a conventional and known device that can control the host 1, display screen 3, control module 41, hydraulic device 44, top irradiation simulation device 45, bottom irradiation simulation device 46, camera 47, and negative pressure device 49. All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as riveting and welding that are mature in the prior art. In addition, the standard parts are all conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art.

[0025] It should be noted that the above electrical components are all existing technology products. Those skilled in the art should select, install, and complete the circuit debugging work according to the needs of use to ensure that each electrical appliance can work normally. The components are all general standard parts or components known to those skilled in the art. Their structure and principle can be known by those skilled in the art through technical manuals or conventional experimental methods. No specific restrictions are made here. The supporting structures of the hydraulic drive structure appearing in this application document, such as hydraulic tanks and hydraulic pumps, are existing equipment and will not be described in detail here.

[0026] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A gamma ray irradiation tolerance testing device for medical sterile PET packaging bags, comprising a main unit (1), a mounting frame (2) fixedly mounted on the main unit (1), and a display screen (3) provided on the mounting frame (2), characterized in that: The host (1) is equipped with a test component (4), which includes: The control module (41) is fixedly installed on the host (1). A base box (42) is fixedly installed on the control module (41). A sealing cover (43) is hinged on the base box (42). A top irradiation simulation device (45) is fixedly installed inside the sealing cover (43). Bottom irradiation simulation device (46) is fixedly installed inside the bottom box (42), and a camera (47) is fixedly installed inside the bottom box (42). A connecting cylinder (48) is fixedly installed on the bottom box (42). A negative pressure device (49) is fixedly installed at one end of the connecting cylinder (48), and a filter plate (410) is fixedly installed at the other end of the connecting cylinder (48). A placement net (411) is fixedly installed inside the bottom box (42).

2. The medical aseptic PET packaging bag gamma-ray irradiation resistance test device according to claim 1, characterized in that: One end of a hydraulic device (44) is hinged to the outer surface of the bottom box (42), and the piston end of the hydraulic device (44) is hinged to the outer surface of the sealing cover (43).

3. The medical aseptic PET packaging bag gamma-ray irradiation resistance test device according to claim 2, characterized in that: The hydraulic device (44), camera (47), connecting cylinder (48), negative pressure device (49) and filter plate (410) are provided in multiple sets.

4. The medical aseptic PET packaging bag gamma-ray irradiation resistance test device according to claim 1, characterized in that: The placement net (411) is positioned above the bottom irradiation simulation device (46), and multiple sets of cameras (47) are positioned on both sides of the placement net (411).

5. The medical aseptic PET packaging bag gamma-ray irradiation resistance test device according to claim 1, characterized in that: An auxiliary component (5) is provided on the bottom box (42). The auxiliary component (5) includes a pole (51). The pole (51) is fixedly installed on the placement net (411). A rubber head (52) is fixedly installed on the top of the pole (51). A guardrail (53) is fixedly installed on the placement net (411). A sealing groove (54) is opened on the bottom box (42). A sealing ring (55) is fixedly installed on the sealing cover (43).

6. The medical aseptic PET packaging bag gamma-ray irradiation resistance test device according to claim 5, characterized in that: Multiple sets of the uprights (51), rubber heads (52) and guardrails (53) are provided, with the uprights (51) and rubber heads (52) positioned above the net (411).

7. The medical aseptic PET packaging bag gamma-ray irradiation resistance test device according to claim 5, characterized in that: The guardrail (53) is located on the side close to the negative pressure equipment (49), and the sealing groove (54) corresponds to the sealing ring (55).

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