Isolation protective hydrogel evaluation method and system

Abstract

The present application relates to the technical field of radiotherapy protection material testing, in particular to an evaluation method and system for isolation protection hydrogel, the system comprises an X-ray device, an aluminum ladder, a test disc and a sample manufacturing device, the sample manufacturing device comprises a workbench, a lifting mechanism, a horizontal moving mechanism, a uniform smearing assembly, an injection assembly, a rotating mechanism and a control module. The evaluation method comprises the following steps: automatic sample preparation, sample shaping, placing aluminum ladder control sample, simulating clinical radiotherapy irradiation, X-ray detection and evaluation. The automatic equipment is used to realize the standardization of hydrogel sample preparation, the 4Gy single radiotherapy dose and 10-minute irradiation time are set to accurately simulate the clinical radiotherapy conditions, the aluminum ladder control and X-ray gray value detection are combined to quantitatively evaluate the radiation shielding effect and performance attenuation of the hydrogel. The present application realizes the automation of the sample preparation process, the test is consistent with the clinical practice, the evaluation result is accurate and objective, and reliable data support is provided for the research and development and clinical application of the isolation protection hydrogel.

Description

Technical Field

[0001] This invention relates to the field of testing technology for radiotherapy protective materials, specifically to a method and system for evaluating hydrogels used in isolation and protection. Background Technology

[0002] Radiotherapy is an important means of cancer treatment, but the radiation it produces can easily cause radiation damage to the patient's skin and surrounding tissues. Hydrogels, due to their good biocompatibility and radiation isolation capabilities, have become a key material for radiotherapy protection and have been widely studied and applied in clinical practice.

[0003] In existing technologies, the evaluation of the radiation shielding effect and performance degradation of hydrogels for isolation and protection still has the following shortcomings: Hydrogel sample preparation relies on manual operation. Manual injection and spreading can easily lead to uneven distribution of hydrogel and inconsistent layer thickness. Furthermore, it is difficult to accurately control the injection speed and injection volume, making it difficult to simulate the shear force conditions of clinical injection. As a result, the sample repeatability and standardization are low. Furthermore, the lack of dedicated automated sample preparation equipment and the lack of coordinated control among various operational steps result in low sample preparation efficiency and large errors. The absence of dedicated tooling in the leveling and shaping process further exacerbates the sample thickness deviation. Summary of the Invention

[0004] The purpose of this invention is to provide a method and system for evaluating hydrogels used for isolation and protection, so as to solve the problems mentioned in the background art.

[0005] The objective of this invention can be achieved through the following technical solutions: The hydrogel evaluation system for isolation and protection includes X-ray equipment, an aluminum ladder, and a test tray, and also includes: Sample manufacturing equipment, the sample manufacturing equipment comprising: The workbench has legs fixedly installed on its bottom surface near the corners. The lifting mechanism is fixedly installed on the top surface of the workbench, including a horizontally set lifting plate; A transverse movement mechanism is fixedly installed on the bottom surface of the lifting plate, and includes horizontally arranged strips; The spreading component is slidably mounted on the strip; The injection assembly is detachably and securely mounted on the front end of the strip. A rotating mechanism, fixedly mounted on the workbench, is used to mount the test disk and drive the test disk to rotate; The control module is used to coordinate the operation of the lifting mechanism, the traversing mechanism, the injection assembly, and the rotating mechanism.

[0006] Furthermore, the lifting mechanism includes a support base fixedly installed on the top surface of the workbench, two symmetrically distributed columns fixedly installed on the top of the support base, a connecting seat fixedly installed between the tops of the two columns, and an electric push rod fixedly installed at the center of the top surface of the connecting seat. The telescopic end of the electric push rod slides through the connecting seat and is fixedly connected to the top end of the lifting plate. Both sides of the lifting plate are fixedly installed with ear plates near the connecting seat, and the two ear plates are respectively slidably connected to the two columns.

[0007] Furthermore, the transverse movement mechanism includes two fixed seats that are respectively fixedly installed at both ends of the bottom surface of the lifting plate, a lead screw is rotatably installed between the two fixed seats, and two guide rods symmetrically distributed about the lead screw are fixedly connected between the two fixed seats; The lead screw is threaded with a slide block, and the slide block and the guide rod are slidably connected through the slide block. The strip plate is fixedly connected to the side of the slide block near the front end of the lifting plate. A motor is fixedly installed on the outer side of the fixed seat near the end of the lifting plate. The end of the lead screw near the motor rotates through the fixed seat and is fixedly connected to the output shaft end of the motor.

[0008] Furthermore, the smoothing component includes a rectangular sliding sleeve that is slidably sleeved around the periphery of the strip plate, and the top surface of the rectangular sliding sleeve is threaded with a positioning bolt for limiting the relative sliding between the rectangular sliding sleeve and the strip plate. A hanging rod is fixedly connected to the bottom surface of the rectangular sliding sleeve, and a scraper for use with the test plate is fixedly installed at the bottom end of the hanging rod.

[0009] Furthermore, the injection assembly includes a mounting plate one that is detachably and fixedly installed at the front end of the strip plate, a mounting plate two that is disposed directly below the mounting plate one, and a connecting rod that is fixedly connected between the bottom surface of the mounting plate two and the mounting plate one. An electric push rod 2 is fixedly installed at the center of the top surface of the mounting plate 1. The telescopic end of the electric push rod 2 slides through the mounting plate 1 to the bottom of the mounting plate 1. A syringe coaxially mounted is fixedly installed on the bottom surface of the second mounting plate, and the end of the syringe plunger is fixedly connected to the telescopic end of the second electric plunger.

[0010] Furthermore, the rotating mechanism includes a second motor fixedly installed on the bottom surface of the workbench. The output shaft of the second motor rotates through the workbench to the top of the workbench and is then fixedly installed with a U-shaped seat. A turntable coaxial with the second motor is fixedly installed on the top of the U-shaped seat. The top surface of the turntable has two symmetrically distributed through slots, and the bottom surface of the turntable has two symmetrically distributed fixing blocks. A bidirectional lead screw is rotatably installed between the two fixing blocks. One end of the bidirectional lead screw rotates through the fixing block at the corresponding position and is then fixedly installed with a handwheel. Two symmetrically distributed sliders are installed on the fixed block through a through thread. The top surface of the sliders slides in contact with the bottom surface of the turntable. The two sliders are located below the two through slots respectively. An installation block is fixedly installed on the top surface of the slider. The top of the installation block slides through the turntable to the top of the turntable through the through slot at the corresponding position. A horizontal Y-shaped rod is fixedly connected to the side of the mounting block near the center of the turntable, and vertically arranged abutment posts are fixedly installed at both ends of the Y-shaped rod away from the mounting block.

[0011] Another object of the present invention is to provide a method for evaluating hydrogels for isolation and protection, comprising the following steps: S1: Automated Sample Preparation Through the coordinated operation of the lifting mechanism, the lateral movement mechanism, the injection mechanism and the rotation mechanism, the hydrogel for isolation and protection is injected into the test tray, and the injection parameters are controlled to achieve the initial uniform distribution of the hydrogel. S2: Sample shaping; Through the coordinated operation of the lifting mechanism, the lateral movement mechanism, the spreading component and the rotation mechanism, the surface of the hydrogel can be precisely adjusted to ensure a consistent thickness of the hydrogel layer. S3: Place the aluminum ladder control samples of different thicknesses and the hydrogel samples on the same plane; S4: Simulated Irradiation The sample was placed into the radiotherapy irradiation module, and a single radiotherapy dose of 4 Gy and an irradiation time of 10 minutes were set to simulate clinical radiotherapy conditions. S5: Effectiveness Evaluation The sample was photographed with X-ray equipment, and the gray value data was extracted and compared with the nominal requirements to evaluate the radiation shielding effect and performance degradation of the hydrogel.

[0012] The beneficial effects of this invention are: 1. This invention achieves automated injection of hydrogels through an automated injection assembly and a rotating mechanism. The electric push rod can precisely control the injection speed and injection volume, making the sample more consistent with actual application scenarios and improving the clinical reference value of the test.

[0013] 2. This invention achieves fine shaping of the hydrogel surface by using the scraper of the spreading component in conjunction with the rotation of the test plate, which can ensure the uniformity of the hydrogel layer thickness and improve sample repeatability. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a three-dimensional schematic diagram of the overall structure of the evaluation system in this invention; Figure 2 yes Figure 1 Enlarged view of section A; Figure 3 yes Figure 1 A three-dimensional diagram from another angle; Figure 4 yes Figure 3 Enlarged view of section B; Figure 5 This is a three-dimensional schematic diagram of the connection relationship between the rotating mechanism and the worktable in this invention; Figure 6 yes Figure 5 Enlarged view of section C; Figure 7 This is a schematic diagram of the hydrogel fabric in the test tray; Figure 8 This is a structural schematic diagram showing the positional relationship between the aluminum ladder and the test plate in this invention; Figure 9 yes Figure 8 Top view; The attached figures are labeled as follows: 1-Workbench, 2-Support leg, 3-Support base, 4-Column, 5-Connecting base, 6-Electric push rod one, 7-Lifting plate, 8-Ear plate, 9-Motor one, 10-Screw rod, 11-Guide rod, 12-Slide seat, 13-Fixed base, 14-Strip plate, 15-Rectangular sliding sleeve, 16-Positioning bolt, 17-Hanging rod, 18-Mounting plate one, 19-Electric push rod two, 20-Mounting plate two, 21-Connecting rod, 22-Injector, 23-Scraper, 24-Rotating mechanism, 25-Motor two, 26-U-shaped seat, 27-Fixed block, 28-Through groove, 29-Mounting block, 30-Y-shaped rod, 31-Contact column, 32-Test plate, 33-Turntable, 34-Double-acting screw rod, 35-Handwheel, 36-Slider, 37-Aluminum ladder. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Example 1: Please refer to Figures 1-9 In this embodiment of the invention, the hydrogel evaluation system for isolation and protection includes an X-ray device, an aluminum ladder 37, and a test tray 32, and further includes: Sample manufacturing equipment, including: Workbench 1, with legs 2 fixedly installed on the bottom surface of workbench 1 near the corners; The lifting mechanism is fixedly installed on the top surface of the workbench 1, including a horizontally set lifting plate 7; The horizontal movement mechanism is fixedly installed on the bottom surface of the lifting plate 7, and includes horizontally arranged strips 14; The spreading component is slidably mounted on strip 14; The injection assembly is detachably and fixedly mounted on the front end of the strip 14; The rotating mechanism 24 is fixedly installed on the workbench 1 and is used to install the test disk 32 and drive the test disk 32 to rotate. The control module is used to coordinate the operation between the lifting mechanism, the traversing mechanism, the injection assembly, and the rotating mechanism 24.

[0017] This embodiment describes the overall structure of a hydrogel evaluation system for isolation and protection. The system consists of an X-ray device, an aluminum ladder 37, a test tray 32, and a sample manufacturing device. The sample manufacturing device includes a worktable 1, a lifting mechanism, a traversing mechanism, a spreading component, an injection component, a rotating mechanism 24, and a control module. Support legs 2 provide stable support for the worktable 1. The control module, as the core control unit, enables the coordinated operation of the lifting mechanism, traversing mechanism, injection component, and rotating mechanism 24. The system as a whole automates the preparation and standardized shaping of the hydrogel through the sample manufacturing device. Using the aluminum ladder 37 as a control sample, the sample is irradiated under simulated clinical radiotherapy conditions via a radiotherapy irradiation module. The X-ray device then performs sample testing and data extraction, ultimately achieving a comprehensive evaluation of the hydrogel's performance.

[0018] This embodiment integrates the sample preparation, irradiation, and testing processes into a unified evaluation system, solving the problems of disconnected testing processes and lack of coordinated control in existing technologies. It achieves a systematic approach to the entire process of hydrogel performance evaluation, significantly improving testing efficiency. At the same time, by replacing manual sample preparation with dedicated sample manufacturing equipment, it comprehensively solves the core problems of large errors and low standardization in existing manual sample preparation, laying the foundation for accurate sample preparation and testing.

[0019] The control module used in this invention is within the scope of existing technology. Conventional industrial control units such as programmable logic controllers (PLCs), microcontrollers, and industrial control computers can be selected, or a dedicated motion control module can be used. It sends control commands to the power components of each mechanism through existing conventional control methods such as pulse signals, analog signals, or communication commands, so as to realize the motion coordination, parameter adjustment, and runtime sequence control between the lifting mechanism, the traversing mechanism, the injection assembly, and the rotating mechanism.

[0020] Example 2: Please refer to Figure 1 and Figure 2 Based on embodiment 1, the lifting mechanism includes a support base 3 fixedly installed on the top surface of the workbench 1, two symmetrically distributed columns 4 fixedly installed on the top of the support base 3, a connecting seat 5 fixedly installed between the tops of the two columns 4, an electric push rod 6 fixedly installed at the center of the top surface of the connecting seat 5, and the telescopic end of the electric push rod 6 slides through the connecting seat 5 and is fixedly connected to the top end of the lifting plate 7. Both sides of the lifting plate 7 are fixedly installed with ear plates 8 near the connecting seat 5, and the two ear plates 8 are slidably connected to the two columns 4 respectively.

[0021] When the electric push rod 6 extends or retracts, it drives the lifting plate 7 to move vertically up and down along the column 4. The ear plate 8 restricts the movement direction of the lifting plate 7 to prevent it from deviating and ensures the linearity and stability of the lifting action.

[0022] The electric push rod 6 provides lifting power, realizing the automation and precise control of the lifting action. It solves the problem of large error in the existing manual height adjustment and can accurately adjust the working height of the subsequent transverse mechanism, injection component and spreading component, and is suitable for samples of different thicknesses in the test tray 32.

[0023] Example 3: Please refer to Figure 2 Based on embodiment 1, the transverse mechanism includes two fixed seats 13 respectively fixedly installed at both ends of the bottom surface of the lifting plate 7, a lead screw 10 is rotatably installed between the two fixed seats 13, and two guide rods 11 symmetrically distributed about the lead screw 10 are fixedly connected between the two fixed seats 13. A slide block 12 is installed on the periphery of the lead screw 10 through a threaded connection, and the slide block 12 is slidably connected to the guide rod 11 through a threaded connection. A strip plate 14 is fixedly connected to the side of the slide block 12 near the front end of the lifting plate 7. A motor 9 is fixedly installed on the outer side of the fixed seat 13 near the end of the lifting plate 7. The end of the lead screw 10 near the motor 9 rotates through the fixed seat 13 and is fixedly connected to the output shaft end of the motor 9.

[0024] Motor 9 drives lead screw 10 to rotate. Under the limiting action of guide rod 11, slide 12 moves horizontally along lead screw 10, which drives strip 14 fixed to slide 12 to move horizontally in sync, thereby driving injection component and spreading component on strip 14 to complete horizontal displacement adjustment.

[0025] Motor 9 provides controllable power for lateral movement, which can precisely control the lateral movement speed and distance of strip 14, realize the uniform injection and leveling of hydrogel, avoid local accumulation of hydrogel, and further improve the uniformity of sample preparation.

[0026] Example 4: Please refer to Figure 1 and Figure 2 Based on Example 1, the smoothing component includes a rectangular sliding sleeve 15 that is slidably sleeved around the outer periphery of the strip plate 14. The top surface of the rectangular sliding sleeve 15 is threaded with a positioning bolt 16 for limiting the relative sliding between the rectangular sliding sleeve 15 and the strip plate 14. A hanging rod 17 is fixedly connected to the bottom surface of the rectangular sliding sleeve 15, and a scraper 23 for use with the test plate 32 is fixedly installed at the bottom end of the hanging rod 17.

[0027] The rectangular sliding sleeve 15 can slide along the strip 14, adjusting the horizontal working position of the scraper 23. After the position is determined, tighten the positioning bolt 16 to restrict the relative sliding between the rectangular sliding sleeve 15 and the strip 14. The scraper 23 moves laterally with the strip 14 and rises and falls with the lifting plate 7, coordinating with the rotation of the test tray 32 to complete the smoothing and shaping of the hydrogel surface. This solves the problems of inconsistent thickness caused by the lack of fixed fixtures in existing manual smoothing methods. The adaptable design of the scraper 23 and the test tray 32 can fit the surface of the test tray 32, achieving fine shaping of the hydrogel layer, accurately controlling the thickness of the hydrogel layer, and ensuring the consistency and standardization of sample thickness.

[0028] Example 5: Please refer to Figure 1 and Figure 2 Based on Example 1, the injection assembly includes a mounting plate 18 that is detachably and fixedly installed at the front end of the strip plate 14, a mounting plate 20 that is located directly below the mounting plate 18, and a connecting rod 21 that is fixedly connected between the mounting plate 20 and the bottom surface of the mounting plate 18. An electric push rod 2 19 is fixedly installed at the center of the top surface of the mounting plate 18. The telescopic end of the electric push rod 2 19 slides through the mounting plate 18 to the bottom of the mounting plate 18. A syringe 22 is coaxially mounted on the bottom surface of the mounting plate 20, and the end of the syringe 22's push rod is fixedly connected to the telescopic end of the electric push rod 2 19.

[0029] When the electric push rod 19 extends and retracts, it pushes the push rod of the syringe 22 to move axially, injecting the protective hydrogel inside the syringe 22 into the test plate 32 in a measured amount. The connecting rod 21 ensures the installation stability of the mounting plate 20 and the syringe 22.

[0030] By controlling the injection action of syringe 22 with electric push rod 29, the injection speed and injection volume of hydrogel can be precisely controlled, solving the problems of uneven injection and inaccurate volume control in existing manual injection, and improving the clinical reference value of the test.

[0031] Example 6: Please refer to Figure 1 and Figures 3-7 Based on embodiment 1, the rotating mechanism 24 includes a second motor 25 fixedly installed on the bottom surface of the workbench 1. The output shaft of the second motor 25 rotates through the workbench 1 to the top of the workbench 1 and is fixedly installed with a U-shaped seat 26. A turntable 33 coaxial with the second motor 25 is fixedly installed on the top of the U-shaped seat 26. Two symmetrically distributed through slots 28 are opened on the top surface of the turntable 33, and two symmetrically distributed fixing blocks 27 are fixedly installed on the bottom surface of the turntable 33. A two-way screw 34 is rotatably installed between the two fixing blocks 27. One end of the two-way screw 34 rotates through the fixing block 27 at the corresponding position and is fixedly installed with a handwheel 35. Two symmetrically distributed sliders 36 are installed on the fixed block 27 through threads. The top surface of the sliders 36 slides in contact with the bottom surface of the turntable 33. The two sliders 36 are located below the two through slots 28 respectively. An installation block 29 is fixedly installed on the top surface of the sliders 36. The top of the installation block 29 slides through the turntable 33 to the top of the turntable 33 through the through slot 28 at the corresponding position. A horizontally placed Y-shaped rod 30 is fixedly connected to the side of the mounting block 29 near the center of the turntable 33. Vertically arranged abutment posts 31 are fixedly installed at both ends of the Y-shaped rod 30 away from the mounting block 29.

[0032] Rotating the handwheel 35 drives the bidirectional lead screw 34 to rotate, causing the two sliders 36 to move towards or away from each other along the bidirectional lead screw 34, which in turn drives the mounting block 29, the Y-shaped rod 30 and the contact post 31 to move synchronously. The contact post 31 then contacts the outer wall of the test disk 32 to fix it. The motor 25 drives the U-shaped seat 26 and the turntable 33 to rotate, which in turn drives the fixed test disk 32 to rotate synchronously.

[0033] The bidirectional lead screw 34 drives the synchronous centering adjustment of the two contact columns 31, which can firmly fix the test disks 32 of different specifications, and there is no offset during the fixing process, ensuring the stability of sample preparation; the rotation speed of the second motor 25 is controllable, which can precisely adjust the rotation speed of the test disk 32, and together with the injection component and the spreading component, achieves circumferential uniform distribution of hydrogel, avoids local accumulation, and improves the uniformity of hydrogel samples.

[0034] Example 7: Please refer to Figures 1-9 This example provides a detailed evaluation method for hydrogels used for isolation and protection, including the following steps: S1: Automated Sample Preparation Through the coordinated operation of the lifting mechanism, the lateral movement mechanism, the injection mechanism and the rotating mechanism 24, the hydrogel for isolation and protection is injected into the test plate 32, and the injection parameters are controlled to achieve the initial uniform distribution of the hydrogel. S2: Sample shaping; Through the coordinated operation of the lifting mechanism, the horizontal movement mechanism, the smoothing component and the rotating mechanism 24, the surface of the hydrogel can be finely adjusted to ensure that the thickness of the hydrogel layer is consistent. S3: Place the aluminum ladder control samples of different thicknesses and the hydrogel samples on the same plane; S4: Simulated Irradiation The sample was placed into the radiotherapy irradiation module, and a single radiotherapy dose of 4 Gy and an irradiation time of 10 minutes were set to simulate clinical radiotherapy conditions. S5: Effectiveness Evaluation The sample after irradiation is photographed using an X-ray detection module, and the grayscale data is extracted and compared with the nominal requirements to evaluate the radiation shielding effect and performance degradation of the hydrogel.

[0035] In this embodiment, the specific evaluation method for hydrogels used for isolation and protection is refined. The method consists of five steps: S1 automated sample preparation, S2 sample shaping, S3 placement of control samples, S4 simulated irradiation, and S5 effect evaluation. S1, through the control module coordinating the operation of the lifting mechanism, lateral mechanism, injection component, and rotating mechanism 24, precisely injects the hydrogel into the rotating test plate 32. The initial uniform distribution of the hydrogel is achieved by controlling the injection speed, injection volume, and rotation speed of the test plate 32. S2, through the control module coordinating the operation of each mechanism and the smoothing component, the scraper 23, in conjunction with the rotation of the test plate 32, precisely smooths the surface of the hydrogel, ensuring a consistent hydrogel layer thickness. S3, control samples of different thicknesses (aluminum ladder 37) are placed on the same plane as the hydrogel sample to provide a unified reference for subsequent testing. S4, the samples are placed together in the radiotherapy irradiation module, with a single radiotherapy dose of 4 Gy and an irradiation time of 10 minutes, precisely simulating clinical radiotherapy conditions. S5, the irradiated samples are photographed using X-ray equipment, and the grayscale data is extracted and compared with the nominal requirements to quantitatively evaluate the radiation shielding effect and performance degradation of the hydrogel.

[0036] This embodiment designs a standardized and streamlined hydrogel evaluation method, which solves the problems of existing tests lacking standardized procedures and arbitrary operations at each stage; through the collaborative control of various institutions, it achieves full automation of sample preparation, reduces errors from human intervention, and ensures the repeatability and standardization of samples; Setting radiotherapy irradiation parameters consistent with clinical practice can truly reflect the protective effect of hydrogel in actual clinical applications, solving the problem of existing simulation parameters being out of touch with clinical practice. Using aluminum 37 as a control sample provides a unified reference for grayscale value detection. Combined with grayscale value extraction from X-ray equipment, it enables quantitative evaluation of the radiation shielding effect and performance degradation of hydrogel, solving the problem of low accuracy in existing subjective manual evaluations and making the evaluation results more objective and convincing.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A hydrogel evaluation system for isolation and protection, comprising an X-ray device, an aluminum ladder (37), and a test tray (32), characterized in that, Also includes: Sample manufacturing equipment, the sample manufacturing equipment comprising: Workbench (1), the bottom surface of the workbench (1) is fixedly equipped with legs (2) near the corners. The lifting mechanism is fixedly installed on the top surface of the workbench (1) and includes a horizontally set lifting plate (7). A transverse mechanism is fixedly installed on the bottom surface of the lifting plate (7) and includes horizontally arranged strips (14). The spreading component is slidably mounted on the strip (14); The injection assembly is detachably and fixedly mounted on the front end of the strip (14); A rotating mechanism (24) is fixedly installed on the workbench (1) and is used to install the test disk (32) and drive the test disk (32) to rotate; The control module is used to coordinate the operation between the lifting mechanism, the traversing mechanism, the injection assembly and the rotating mechanism (24).

2. The hydrogel evaluation system for isolation and protection according to claim 1, characterized in that, The lifting mechanism includes a support base (3) fixedly installed on the top surface of the workbench (1). Two symmetrically distributed columns (4) are fixedly installed on the top of the support base (3). A connecting seat (5) is fixedly installed between the tops of the two columns (4). An electric push rod (6) is fixedly installed at the center of the top surface of the connecting seat (5). The telescopic end of the electric push rod (6) slides through the connecting seat (5) and is fixedly connected to the top end of the lifting plate (7). Both sides of the lifting plate (7) are fixedly installed with ear plates (8) near the connecting seat (5), and the two ear plates (8) are respectively slidably connected to the two columns (4).

3. The hydrogel evaluation system for isolation and protection according to claim 1, characterized in that, The transverse mechanism includes two fixed seats (13) that are fixedly installed at both ends of the bottom surface of the lifting plate (7). A lead screw (10) is rotatably installed between the two fixed seats (13), and two guide rods (11) that are symmetrically distributed about the lead screw (10) are fixedly connected between the two fixed seats (13). The outer periphery of the lead screw (10) is threaded with a slide block (12), and the slide block (12) is slidably connected to the guide rod (11). The slide block (12) is fixedly connected to the strip plate (14) on the side near the front end of the lifting plate (7). A motor (9) is fixedly installed on the outer side of the fixed seat (13) near the end of the lifting plate (7). The end of the lead screw (10) near the motor (9) rotates through the fixed seat (13) and is fixedly connected to the output shaft end of the motor (9).

4. The hydrogel evaluation system for isolation and protection according to claim 1, characterized in that, The smoothing assembly includes a rectangular sliding sleeve (15) that is slidably sleeved around the outer periphery of the strip (14). The top surface of the rectangular sliding sleeve (15) is threaded with a positioning bolt (16) for limiting the relative sliding between the rectangular sliding sleeve (15) and the strip (14). The bottom surface of the rectangular sliding sleeve (15) is fixedly connected to a hanging rod (17), and the bottom end of the hanging rod (17) is fixedly installed with a scraper (23) that works in conjunction with the test plate (32).

5. The hydrogel evaluation system for isolation and protection according to claim 1, characterized in that, The injection assembly includes a mounting plate one (18) that is detachably and fixedly installed at the front end of the strip plate (14). A mounting plate two (20) is provided directly below the mounting plate one (18). A connecting rod (21) is fixedly connected between the bottom surface of the mounting plate two (20) and the mounting plate one (18). An electric push rod 2 (19) is fixedly installed at the center of the top surface of the mounting plate 1 (18). The telescopic end of the electric push rod 2 (19) slides through the mounting plate 1 (18) to the bottom of the mounting plate 1 (18). The bottom surface of the second mounting plate (20) is fixedly mounted with a coaxially arranged syringe (22), and the end of the plunger of the syringe (22) is fixedly connected to the telescopic end of the second electric push rod (19).

6. The hydrogel evaluation system for isolation and protection according to claim 1, characterized in that, The rotating mechanism (24) includes a second motor (25) fixedly installed on the bottom surface of the workbench (1). The output shaft of the second motor (25) rotates through the workbench (1) to the top of the workbench (1) and is fixedly installed with a U-shaped seat (26). A turntable (33) coaxial with the second motor (25) is fixedly installed on the top of the U-shaped seat (26). Two symmetrically distributed through slots (28) are opened on the top surface of the turntable (33), and two symmetrically distributed fixing blocks (27) are fixedly installed on the bottom surface of the turntable (33). A two-way screw rod (34) is rotatably installed between the two fixing blocks (27). One end of the two-way screw rod (34) rotates through the corresponding fixing block (27) and then a handwheel (35) is fixedly installed. Two symmetrically distributed sliders (36) are installed on the fixed block (27) through a thread. The top surface of the slider (36) slides in contact with the bottom surface of the turntable (33). The two sliders (36) are located below the two through slots (28) respectively. An installation block (29) is fixedly installed on the top surface of the slider (36). The top of the installation block (29) slides through the turntable (33) to the top of the turntable (33) through the through slot (28) at the corresponding position. A horizontal Y-shaped rod (30) is fixedly connected to the side of the mounting block (29) near the center of the turntable (33), and vertically arranged abutment posts (31) are fixedly installed at both ends of the Y-shaped rod (30) away from the mounting block (29).

7. An evaluation method using the hydrogel evaluation system for isolation and protection as described in claim 1, characterized in that, The evaluation method includes the following steps: S1: Automated Sample Preparation Through the coordinated operation of the lifting mechanism, the lateral movement mechanism, the injection mechanism and the rotation mechanism (24), the hydrogel for isolation and protection is injected into the test tray (32), and the injection parameters are controlled to achieve the initial uniform distribution of the hydrogel. S2: Sample shaping; Through the coordinated operation of the lifting mechanism, the horizontal movement mechanism, the smoothing component and the rotating mechanism (24), the surface of the hydrogel is finely adjusted to ensure that the thickness of the hydrogel layer is consistent. S3: Place the aluminum ladder control samples of different thicknesses and the hydrogel samples on the same plane; S4: Simulated Irradiation The sample was placed into the radiotherapy irradiation module, and a single radiotherapy dose of 4 Gy and an irradiation time of 10 minutes were set to simulate clinical radiotherapy conditions. S5: Effectiveness Evaluation The sample after irradiation is photographed using an X-ray detection module, and the grayscale data is extracted and compared with the nominal requirements to evaluate the radiation shielding effect and performance degradation of the hydrogel.

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