33 results about "Radiation Leak" patented technology

The invention discloses a blood volume detection device and method based on a brain angiography image, and relates to the technical field of blood volume detection of the brain angiography image, the blood volume detection device comprises a detection device body and a substrate, the top surface of the substrate is fixedly provided with a lifting platform, and the surface of the top end of the lifting platform is fixedly provided with a workbench; and the linear motor is installed in the middle of the top face of the workbench, and a movable bed plate is horizontally and fixedly installed on the movable end face of the top of the linear motor. According to the blood volume detection device and method based on the brain angiography image, displacement compensation closed-loop control is achieved through the fine adjustment feedback module of the adjusting mechanism, and the gear meshing clearance compensation error is reduced; the LSTM network and the hybrid FEM-LBM algorithm are cooperatively optimized, the blood flow calculation speed is multiplied, an isolation telescopic sleeve shell and a shielding plate are arranged to form a composite shielding layer, the radiation leakage amount is reduced, the radiation monitoring module achieves real-time alarm of dose exceeding, and the protection level is improved.

The invention discloses a modular hot cell, and relates to the technical field of radiation experiments. The hot cell comprises: a base; a shielding body, wherein the shielding body is arranged on the base; the shielding body is arranged on the base, the shell is arranged on the base, and the shell is located in the shielding body; part of the passing assembly is arranged on the shielding body, and part of the passing assembly is arranged on the shell; a part of the observation assembly is arranged on the shielding body, and a part of the observation assembly is arranged on the shell. According to the modularized hot chamber, through the modularized splicing structure of the base, the shielding body and the shell, the construction efficiency of the hot chamber is remarkably improved, the nested design of the shielding body and the shell forms a multiple radiation protection barrier, and the radiation leakage amount is controlled to be at an extremely low level while the operation visibility of personnel is guaranteed. According to the invention, a user can inspect the damaged fuel element at the first time, and the efficiency and reliability of fuel element damage inspection and analysis are improved.

The utility model relates to the field of injection devices, in particular to a radiopharmaceutical injection device. The device comprises an injector a, an injector b, a three-way plug valve, an extension tube, a balloon, a control switch and a suction nozzle, the three-way plug valve is provided with an input end A, an input end B and an output end C; the liquid outlet end of the injector a is communicated with the input end B of the three-way plug valve; the liquid outlet end of the injector b is communicated with the input end A of the three-way plug valve; one end of the extension tube is communicated with the output end C of the three-way plug valve, the other end of the extension tube is communicated with the suction nozzle, the extension tube is communicated with the balloon, and the control switch is arranged between the balloon and the suction nozzle and controls on-off of the extension tube. According to the utility model, the iodine 131 medicine is firstly injected into the saccule, after a patient drinks up, saline water is injected into the saccule, and after the patient drinks up the saline water after tube washing, closed administration is realized, the medicine is prevented from being exposed and volatilized in the air, the medicine leakage is reduced, and the risk of radiation leakage is reduced.

The radiation protection head and neck sleeve convenient to wear comprises a head protection part, a neck protection part is integrally formed at the lower end of the head protection part, a neck opening extending to the head protection part is formed in the front side of the neck protection part, a zipper is arranged in the neck opening, and the neck protection part is connected with the head protection part. A face opening is formed in the surface of the front side of the head protection part, a face protection part is arranged in the face opening, the head protection part and the neck protection part are both made of flexible materials, the head protection part and the neck protection part are integrally formed, and the neck opening is combined with the convenient wearing and taking-off design of a zipper, so that the pillow is matched with the physiological structure of the head and the neck of a human body; the wearing efficiency is improved, the key areas of the head and the neck can be fully covered through the integrated structure, the radiation leakage risk is reduced, and the comprehensiveness of radiation protection and the wearing convenience are balanced.

The utility model discloses a self-shielding neutron target device and a self-shielding neutron target system, the self-shielding neutron target device comprises a neutron target and a shielding housing, the neutron target comprises a target disc and a rotating part, the target disc is connected with the rotating part, the shielding housing is provided with a shielding chamber and a channel, the shielding chamber is used for packaging the target disc, and the rotating part passes through the channel. The shielding shell is further provided with a connecting end and an emitting end, the connecting end faces at least one part of the target disc, and the emitting end and the connecting end are located on the two opposite sides of the target disc. The shielding cavity can effectively package the target disc, generated neutrons and other radiation are limited in the shielding cavity, radiation leakage is avoided, the neutron target equipment is protected, operators can be prevented from being hurt by radiation, a channel for the rotating part to penetrate out is reserved in the shielding shell, and movement of the rotating part cannot be hindered while the sealing effect is achieved.

The invention relates to the technical field of radiation protection, and particularly discloses a lead-free ray protection plate partition wall which comprises a protection plate unit, and the protection plate unit comprises two outer display layers and a lining layer clamped between the two outer display layers; the top of the wall body is provided with a bendable top layer plate, and the adjacent protection plate units are connected through an outer side plate. According to the invention, the protective cover which can be detached in a segmented manner and the bendable top layer plate are arranged, and the extension blocks which can be flexibly adjusted are matched, so that the wall body can be smoothly bent at any radian and precisely shaped on site according to actual requirements; a traditional prefabricated right-angle component is completely replaced, the adaptability of the partition wall to complex and non-standard space layout is greatly improved, the risk of radiation leakage at the corner is fundamentally eliminated by forming continuous and seamless arc transition, and unification of the protection performance and the design freedom degree is achieved.

The utility model relates to the technical field of anti-radiation wallboards, and discloses an anti-radiation wallboard installation accessory which comprises a plurality of transverse installation assemblies, each transverse installation assembly comprises a transverse keel, a plurality of transverse pressing plates are detachably arranged on the transverse keels, a plurality of vertical installation assemblies are arranged between every two adjacent transverse keels, and the transverse pressing plates are detachably arranged on the vertical installation assemblies. The vertical mounting assembly comprises a vertical keel, and a plurality of vertical pressing plates are detachably arranged on the vertical keel; through cooperative use of the anti-radiation wall plate, the transverse mounting assembly, the vertical mounting assembly, the bolts and the positioning holes, the transverse pressing plate and the vertical pressing plate are fixed to the vertical keel through the bolts, and a rectangular limiting frame fixed in a lossless mode is formed. The transverse keels and the vertical keels adopt the E-shaped middle thickening design, enough screwing depth is provided, the keels do not need to penetrate through, the staggered design of mounting point position holes is ensured, radiation leakage is prevented, and the effects of being good in protection performance and convenient and fast to mount are achieved.

The invention relates to a linear accelerator machine room wall air pipe inner and outer supporting device and a construction method thereof. The device comprises an inner supporting device and an outer supporting device. The inner supporting device comprises a corner supporting seat and an inner supporting frame; the corner supporting seats are fixed to the four corners of the air pipe correspondingly, and the inner supporting frames are correspondingly connected to the interiors of the corner supporting seats, so that an inner support is formed in the air pipe. The outer supporting device comprises an upper supporting steel reinforcement framework and a lower supporting steel reinforcement framework, and mounting plates are arranged at the two ends of the air pipe and used for assembling blind plates so as to seal the two ends of the air pipe after filling materials are injected into the air pipe. The risk of radiation leakage is remarkably reduced through the streamline air pipe design, the structural stability is enhanced in combination with a dual-supporting system, and through the telescopic inner supporting structure, the device can easily adapt to narrow or bent space, rapid and accurate installation is achieved, and the construction efficiency and quality are greatly improved.

The application discloses a fixed telephone network transmission system based on quantum security enhancement, which comprises a plurality of local telephone networks, each of which has a local terminal device, and the local telephone networks are connected through the local terminal devices; each local terminal device is connected with one or more intermediate devices, each intermediate device is connected with a plurality of terminal devices, one terminal device is connected with one telephone set, and the system has an end-to-end security enhancement mechanism, which can provide security protection for the transmission channel between the local telephone switching system and the telephone set, applies quantum random numbers to the wired telephone communication system, adopts a negotiation distribution mechanism of "one-time security transmission protection one-time conversation", enhances the security and privacy ability of the last kilometer of telephone communication, makes up for the lack of identity authentication of the traditional telephone switching network, greatly reduces the security risks such as tampering and imitating attack of the telephone terminal, conduction leakage, radiation leakage, tone leakage and lapping eavesdropping and the like.

The invention discloses a protective device in radiopharmaceutical transportation. The protective device comprises an outer frame, an inner frame and a sealing cover, a plurality of connecting rods are fixedly connected between the circumferential inner wall of the outer frame and the circumferential outer wall of the inner frame, a plurality of fixing rods are fixedly connected between the bottom inner wall of the outer frame and the bottom outer wall of the inner frame, a first solution cavity is formed between the circumferential outer wall of the outer frame and the circumferential outer wall of the inner frame, and the bottom of the sealing cover is in threaded connection with the top ends of the outer frame and the inner frame. Sealing rings are fixedly mounted at the top ends of the outer frame and the inner frame; an annular first solution cavity between an outer frame and an inner frame and a second solution cavity in a sealing cover are communicated through a through groove in the bottom of the sealing cover to form a three-dimensional liquid protective layer surrounding the inner frame, so that a protective solution can wrap the inner frame loaded with radiopharmaceuticals from the side wall and the top in all directions, and the radiopharmaceuticals are protected from being damaged. A continuous and homogeneous shielding barrier is formed, and the risk of radiation leakage caused by splicing gaps of a traditional solid shielding material is avoided.

A thermal radiation shield interface for cryogenic systems includes a first element with a distal, free end. Flanges project from the distal, free end of the first element. A second element also includes a distal, free end. Flanges project from the distal, free end of the second element. The flanges of the first element and the flanges of the second element are positioned in an interleaved arrangement to cover an opening between the first element and the second element shielding the opening from radiation leakage.

The invention discloses a radioactive particle protection implanting device for tumor treatment. The radioactive particle protection implanting device comprises an implanting gun body, a puncture needle, a loading assembly and a push rod matched with the puncture needle. The loading assembly is detachably installed on the surface of the implantation gun body, a bullet loading box and a rotatable rotating wheel are arranged in the loading assembly, a loading groove is formed in the periphery of the rotating wheel, and through holes are formed in the surface of the shielding protection plate and used for achieving one-by-one alignment and shielding protection of radioactive particles. A trigger, a fixed assisting block, a movable assisting block, an elastic piece and an engaging lug are arranged in the implantation gun body, the push rod is driven to linearly advance through the connecting rod and the sliding lug, one-way limiting is achieved under the clamping action of the engaging lug, and reverse sliding of the push rod is prevented. The guide cylinder is used for guiding the push rod to enter the puncture needle and accurately implanting particles into tumor tissue. The device is provided with a rotary missile cabin type protection structure, an anti-non-return gun type propelling structure and a detachable modular loading assembly, radiation leakage can be effectively avoided, it is guaranteed that particle implantation is accurate and reliable, replacement is rapid, and the device has high clinical application value.

To prevent radiation leaking from shielding measures from reaching specific areas. [Solution] The electron beam irradiation device (100) comprises an electron beam generator (4) that generates an electron beam, a transport cylinder (5) that transports the paper (P) so that it passes through the irradiation area (IR) irradiated by the electron beam by holding and rotating a part of the paper (P) to be irradiated by the electron beam, a shielding structure (8) provided around the irradiation area (IR) in the transport cylinder (5) to shield the radiation, and a guide structure (10) that guides the radiation leaked from the end of the shielding structure (8) in a specified direction.

The invention relates to a convex-concave type construction joint special for a linear accelerator machine room, a construction method of the convex-concave type construction joint and the machine room. The convex-concave type construction joint comprises a lower side wall body and an upper side wall body, the top face of the lower side wall body upwards forms a convex structure in the self direction, and the upper side wall body is poured above the lower side wall body; a concave structure embedded with the convex structure is formed on the bottom surface of the upper side wall body; one of the water stop baffle and the anti-radiation baffle is arranged on the inner side of the protruding structure, the other one is arranged on the outer side of the protruding structure, the lower ends of the water stop baffle and the anti-radiation baffle are both inserted into the lower side wall body, and the upper ends of the water stop baffle and the anti-radiation baffle are both inserted into the upper side wall body. By means of the convex-concave type construction joints and the water stop steel plates, the water seepage path is lengthened, and the anti-seepage capacity of the wall is improved; the risk of radiation leakage is isolated through the convex-concave construction joints and the anti-radiation lead plates, investment of a formwork supporting system during overall pouring is saved, and meanwhile overall safety is guaranteed.

1. The name of the design product: radiation leakage test tool. 2. The use of the design product: for testing the radiation leakage of X-ray detection device. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The utility model relates to after-loading radiotherapy equipment. The after-loading radiotherapy equipment comprises an after-loading radiotherapy device which is used for conveying a stored radioactive source into the body of a target object; the radiotherapy bed comprises a bed plate used for supporting a target object; and the shielding structure is used for sealing the afterloading radiotherapy device and the bed plate in the internal space of the shielding structure so as to prevent radiation of the radioactive source from leaking to the outside. Therefore, the after-loading radiotherapy equipment can be deployed in a small or non-fixed site, and can be quickly deployed.

The invention relates to the technical field of anti-radiation nails for radiation protection, and particularly discloses a special-shaped material-saving anti-radiation nail and an anti-radiation method thereof.The special-shaped material-saving anti-radiation nail comprises a nail body and a protective nail cap, one end of the nail body is arranged to be a sharp end, the protective nail cap is fixed to the other end of the nail body, and the protective nail cap is of a multi-layer structure; comprising an outer layer, an anti-radiation layer and an inner layer, the inner layer is fixed to a nail body, the anti-radiation layer is located between the inner layer and the outer layer, and the outer layer, the anti-radiation layer and the inner layer are fixedly connected. The special-shaped material-saving anti-radiation nail provided by the invention not only can effectively reduce radiation leakage, but also can provide an excellent reinforcing and fixing function, and meanwhile, can also save the use of anti-radiation materials. By means of the mode of being embedded into the wall body or the protection plate, radiation leakage can be effectively prevented, meanwhile, use of protection materials is reduced, the protection effect is improved, protection construction is simplified, and the fixing strength of the protection plate is enhanced.

The invention discloses fault disinfection and preservation equipment and method applied to a customs cold chain, and belongs to the field of customs cold chain food treatment. According to the technology, geometric and internal density characteristics of food are accurately obtained through an AI visual identification unit of laser three-dimensional modeling and X-ray density imaging; the AI system dynamically regulates and controls double electron beam parameters (the power is 5-12MeV, and the beam intensity is 1-5mA) and the speed of a conveyor belt based on deep learning and a Monte Carlo algorithm; the double electron beams adopt a 180-degree opposite emission layout with the distance larger than 10 meters, each emitter is provided with an independent protection fortress, energy is superposed in the food center to achieve deep disinfection of 20-40 cm, and the dose uniformity error is smaller than 5%. The treatment efficiency of the equipment reaches 20 tons / hour, the radiation leakage is less than 0.5 mu Sv / h, the preservation time of fruits is more than 3 months, the preservation time of vacuum low-temperature beef is more than 6 months, the equipment is adaptive to the'instant inspection and release 'process of customs, the problems of incomplete disinfection, short preservation time and low efficiency in the traditional technology are solved, and the equipment is suitable for cross-border cold chain large-scale treatment.

The utility model relates to the field of radiation protection equipment, and discloses a radiation protection shielding door opening and closing mechanism which comprises a left wall, a door top plate is fixedly connected to the top of the left side wall of the left wall, a right wall is fixedly connected to the left side wall of the door top plate, and opening and closing mechanisms are arranged in the door top plate and the left wall. The switch mechanism comprises a supporting plate, a motor, a fixing plate and a limiting box. According to the utility model, through the arrangement of the switch mechanism, the problems that the radiation protection effect is influenced and the risk of radiation leakage is increased due to the fact that the convenience and efficiency of operation are influenced and the door is not closed or opened correctly can be solved, and the rack and the fixed plate are driven to slide in the door top plate, the left wall and the right wall, so that the radiation protection effect is improved. Therefore, it is effectively guaranteed that the door is completely sealed when closed, the door can be rapidly and accurately opened or closed when needed, and the risk of radiation leakage is reduced to the maximum extent.

The utility model discloses an easy-to-install radiation shielding device for a pipeline tee joint, which is provided with a hollow cavity matched with the pipeline tee joint, is provided with three pipe orifices corresponding to the pipeline tee joint in position, and comprises a first shielding piece and a second shielding piece which are oppositely arranged, the first shielding piece and the second shielding piece are hinged and can be opened through relative rotation or locked after being butted; the first shielding piece and the second shielding piece are both of a layered structure and comprise a protective layer, a reinforcing layer and a shielding layer which are sequentially arranged from outside to inside. According to the radiation shielding device for the pipeline three-way joint, the shielding device is more attached to the three-way pipe fitting, the sealing performance of the interface is better, mounting and dismounting are more convenient, and the risk of radiation leakage is reduced.

The invention provides a beam limiting device and a control method thereof, and electronic equipment, and the device comprises a blade assembly which comprises a plurality of blades which are in lap joint with each other, and are disposed in the same plane in a single layer; the first-layer rotary table and the second-layer rotary table are coaxially arranged; the blade assembly is arranged between the first-layer rotating disc and the second-layer rotating disc through the guide structure, a radiation field opening is formed through opening and closing of the blade assembly so as to limit the range of a ray beam, the inherent defects of a multi-layer blade beam limiting device in the prior art are overcome, the radiation leakage risk caused by interlayer assembly gaps is remarkably reduced, and the service life of the multi-layer blade beam limiting device is prolonged. The single-layer layout greatly reduces the axial space required by the opening and closing of the blades, so that the overall structure of the beam limiting device is more compact and light, a foundation is laid for the miniaturization design of equipment such as a movable C-shaped arm X-ray machine, the reliability and stability of equipment operation are further improved, a control system is simplified, and the overall cost from research and development to production is reduced.

The utility model relates to the technical field of radiation equipment, in particular to radiation protection equipment for the radiology department, which comprises an isolation unit and a floating limiting unit. The isolation unit comprises a first isolation mechanism, a second isolation mechanism and a third isolation mechanism, the first isolation mechanism is arranged on the left side of the door opening, the second isolation mechanism is arranged on the right side of the door opening, and opposite L-shaped sealing structures are arranged on the right side of the first isolation mechanism and the left side of the second isolation mechanism correspondingly; the third isolation mechanism is arranged on the outer surface of the second isolation mechanism; the floating limiting unit comprises an overturning fastening mechanism, the overturning fastening mechanism comprises an overturning baffle and a pressure head assembly, connecting pieces are arranged on the two sides of the overturning baffle, the connecting pieces are fixedly connected with the outer surface of the first isolation mechanism, and the pressure head assembly is fixedly connected with the overturning baffle. According to the utility model, no gap is left between the two door plates, and the risk of radiation leakage is reduced.

The application discloses a radiation type leaky coaxial cable flame-retardant sheath structure and a manufacturing method. The radiation type leaky coaxial cable flame-retardant sheath structure comprises an inner sheath and an outer sheath, the outer sheath is sleeved on the inner sheath and abuts against the inner sheath, and the inner sheath is an inorganic filling type flame-retardant polyolefin sheath, and the outer sheath is a chemical expansion type flame-retardant sheath. The inner sheath combustion shell formation is greatly improved, a carbon shell is formed after the inner sheath is burned when the leaky coaxial cable is burned, the carbon shell can isolate the flame from entering the inside of the leaky coaxial cable, the outer sheath has high flame-retardant efficiency, meanwhile, good mechanical physical properties can be kept, and the flame-retardant performance of the flame-retardant sheath can be improved.

The utility model relates to the technical field of electromagnetic interference detection, in particular to a detection device for electromagnetic shielding, which comprises a box body, one side of the box body is rotatably connected with a box door through a hinge, any inner wall of the box body is fixedly connected with a main wave absorbing plate, one side of the box door is fixedly connected with an auxiliary wave absorbing plate, the box door is provided with a shielding mechanism in a matched manner, and the shielding mechanism is provided with a shielding mechanism. The shielding mechanism is provided with a fastening mechanism in a matched mode. According to the utility model, the biconical antenna and the equipment are placed in the box body, the box door is closed to enable the sponge frame to be sleeved on the sleeve frame, and the line connected with the equipment and the biconical antenna passes through the L-shaped groove and the threading hole on the baffle plate and then is electrified, so that the gap between the box body and the box door and the gap between the jack and the line are blocked by the wave-absorbing material; the influence of external electromagnetic waves on equipment in the box body is reduced, meanwhile, the situation that radiation in the box body leaks to the outside is reduced, and the box can be repeatedly used and is convenient for users to use.

The invention provides a black phosphorene tetramer metasurface refractive index sensor which comprises a plurality of tetramer metasurface units composed of dielectric substrates and tetramer structures, and the tetramer structures comprise rectangular black phosphorene patches. The rectangular black phosphorene patch adopts an in-plane asymmetric micro-perturbation structure with unequal sizes in the directions of the armchair shaft and the zigzag shaft, and the upper surface of the rectangular black phosphorene patch is provided with a medium cavity filled with a to-be-detected medium. The rectangular black phosphorene patch in the tetramer structure adopts an in-plane asymmetric micro-perturbation structure with low absorption loss as a dielectric material, so that radiation leakage of energy can be reduced, and meanwhile, the defect that the fano resonance line width is relatively wide due to metal plasma related intrinsic loss and additional damping of a mixed mode is eliminated; the two-dimensional sheet structure is easier to form strong near-field coupling and energy localization mainly based on surface current, radiation leakage of energy can be reduced, the in-plane asymmetric perturbation characteristic can improve the consistency of two orthogonal polarization resonance responses, and the detection precision is improved.

The application provides a multi-directional radiation leakage coaxial cable, which comprises an inner conductor, an insulating layer, an outer conductor and a sheath which are coaxially nested in sequence from inside to outside, and at least two rows of slot groups are arranged on the outer conductor, the at least two rows of slot groups are distributed at different angles in the circumferential direction of the outer conductor, each row of slot groups comprises a plurality of slot arrays arranged periodically along the axial direction of the outer conductor, each slot array comprises a plurality of slots, the pitches of the slot groups are the same, the periodic arrangement of the two adjacent slot groups in the circumferential direction is different by half a pitch, and the phases of the respective excited electric fields are different by 180 degrees. The application can realize source separation in space by arranging the plurality of slot groups and making the two adjacent slot groups in the circumferential direction different by half a pitch and the phases of the excited electric fields different by 180 degrees, so that the sources are independent and do not interfere with each other, thereby increasing the number of radiation directions of all frequency points in the working frequency band of the leakage cable and making the leakage cable have stronger application scene applicability.

A radiation-absorbent shield shaped to conform to and enshroud the x-ray tube housing of a C-arm in order to protect medical personnel from radiation leaking through the x-ray tube housing. The shield is attached to the x-ray tube housing such that it moves with the tube housing and provides protection no matter the orientation of the C-arm. C-arm. 20 26 20 48 75 23 J un 2 02 6 2 0 2 6 2 0 4 8 7 5 2 3 J u n 2 0 2 6 C - a r m .

The invention belongs to the technical field of detection equipment, and particularly relates to a radiation protection device for indoor detection and a protection method. The device comprises a base which is provided with a detection mechanism used for detecting a pipeline welding seam; the detection mechanism comprises a detection assembly and a pair of protection assemblies located on the two sides of the detection assembly. Wherein the detection assembly comprises a rotatable annular track, a lifting rod is fixedly connected to the inner side of the annular track, a lifting block is fixedly connected to the lower end of the lifting rod, and a detection probe is installed on the lifting block; the protection assembly comprises an annular frame, the surface of the annular frame is rotationally connected with a rotating disc, a plurality of arc-shaped holes are evenly formed in the surface of the rotating disc in the circumferential direction, and sliding holes in one-to-one correspondence with the arc-shaped holes are formed in the annular frame. Through the protection structures at different positions of the first lead plate and the second lead plate, rays emitted by the detection probe can be effectively absorbed and shielded, radiation leakage is reduced, and the safety of operators is protected.

The utility model relates to the technical field of radioactive liquid medicine split charging, in particular to a radioactive liquid medicine split charging instrument which comprises a first split charging main machine, a second split charging main machine is arranged on the right side of the first split charging main machine, and a protective shielding mechanism is arranged between the second split charging main machine and the first split charging main machine. The protection shielding mechanism comprises a main shielding box, two sets of auxiliary shielding boxes matched with the main shielding box in specification are symmetrically arranged on the left side and the right side in the main shielding box, the auxiliary shielding boxes can slide left and right in the main shielding box, a main shielding cover plate is assembled at the front end of the main shielding box through bolts, and auxiliary shielding cover plates are assembled at the front ends of the auxiliary shielding boxes through bolts. Two groups of lug plates are fixedly arranged at the positions, close to the outer side edges, of the rear side surfaces of the two groups of auxiliary shielding boxes, and a plurality of groups of uniformly-arranged pipe grooves of U-shaped structures are formed in the outer side surfaces of the two groups of auxiliary shielding boxes. By means of the protective shielding structure, the risk of radiation leakage of liquid medicine in the infusion pipeline to operators and the environment in the infusion process can be effectively reduced, and the safety of the operation environment is improved.