Full-automatic radiation protection tool for radiopharmaceutical overflow

Abstract

The invention discloses a full-automatic radiopharmaceutical overflow radiation protection tool, and belongs to the technical field of medical equipment.The tool comprises an isolation hood, a mechanical arm configured to grab the isolation hood and a moving platform configured to carry the mechanical arm, and the isolation hood has an internal volume and is provided with a driving part; the driving part is configured to realize the change of the internal volume of the isolation hood, the isolation hood comprises a hood body and a sleeve body, the hood body is provided with a top and a side part, the sleeve body is matched with the inner side of the side part and can axially slide, and the sliding joint of the hood body and the sleeve body is always sealed. The radiation source can be quickly and efficiently isolated and sealed, the whole process is automatic, and the personnel safety is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of medical equipment, and in particular relates to a fully automatic radiation protection tool for preventing radioactive drug spillage. Background Art

[0002] Radiopharmaceuticals are a special class of drugs containing radionuclides for medical diagnosis and treatment. They are compounds or biological agents labeled with radionuclides used for medical diagnosis or treatment within the body. Like general drugs, radiopharmaceuticals must comply with pharmacopoeia requirements, such as sterility, lack of pyrogen, and low chemical toxicity. Furthermore, they must meet certain requirements for the type, energy, and radioactive half-life of the nuclear radiation they emit, depending on the needs of diagnosis and treatment. Radiopharmaceuticals are radioactive and can cause harm to the human body if exposed to them directly, thus requiring protective measures. Radiopharmaceuticals are often not sealed tightly, which can easily lead to leakage. Furthermore, during manual packaging, improper handling can sometimes cause the drugs to spill.

[0003] The Japanese invention patent with application number JP3223517U discloses a medical radiation protection device, which includes a barrel-shaped protective frame: the protective frame is composed of an upper frame and a lower frame, and also includes a protective cover covering at least one of the inner wall and the outer wall of the barrel-shaped protective frame, and also includes a lifting system, the lifting system includes a lifting motor, a lifting mechanism and a lifting control device. This invention improves the efficiency of non-wearable X-ray radiation protection. In the case of spillage of radioactive drugs, wearing a local protective cover cannot effectively isolate the radiation source. How to achieve centralized isolation of radioactive drugs after leakage is a technical problem that the existing technology has not been able to solve. Therefore, it is very necessary to provide a protective tool to achieve centralized isolation of the radiation of radioactive drugs. Summary of the Invention

[0004] The object of the present invention is to provide a fully automatic radiation protection tool for preventing radioactive drug spillage, which is easy to control and can effectively isolate radiation sources to improve environmental safety.

[0005] The technical solutions adopted by the present invention to achieve the above-mentioned purpose are: A fully automatic radiation protection tool for radioactive drug spillage includes: an isolation cover, a manipulator configured to grab the isolation cover, and a mobile platform configured to carry the manipulator. The isolation cover has an internal volume and is provided with a drive member, and the drive member is configured to achieve changes in the internal volume of the isolation cover. When radioactive material leaks, the mobile platform is remotely controlled to move to the leakage site, and the isolation cover is further lowered and attached to the plane where the leaked material is located by controlling the manipulator, thereby achieving radiation isolation and protection for the leaked radioactive material. When the radiation level drops below the safe radiation value, the isolation cover is raised by the manipulator, and the mobile platform carrying the manipulator and the isolation cover is controlled to leave the contaminated area, providing operating space for subsequent related processing personnel and cleaning personnel. In the early stage of radioactive material leakage, the invention can ensure that the operator maintains a safe distance from the radiation source and has no contact with the radiation source, thereby achieving rapid isolation and protection of the radiation source. There is no need for workers to wear protective equipment to handle the radiation source at close range. On the one hand, it effectively protects the workers, and on the other hand, it reduces the time consumption of wearing protective equipment and improves the efficiency of radiation source isolation. The internal volume of the isolation cover can be adjusted through the driving part. On the one hand, it is convenient to adaptively accommodate leakage containers of different sizes, thereby improving the adaptability of the tool to different radiation sources. At the same time, the internal pressure value of the isolation cover can be adjusted by changing the volume to achieve the stability and sealing of the isolation cover when placed on the ground, thereby reducing the possibility of radiation energy leakage during the isolation radiation period.

[0006] Preferably, the isolation enclosure comprises a housing and a sleeve. The housing has a top and side portions, and the sleeve fits within the side portions and is axially slidable. The sliding connection between the housing and the sleeve is always sealed. The housing and the sleeve can change the volume of the interior of the isolation enclosure through axial sliding, thereby accommodating leaking containers of varying heights and sizes. This allows for rapid and effective isolation of the radiation source without requiring the transfer or adjustment of the leaking container, thereby improving radiation shielding efficiency, reducing the radiation diffusion range, and protecting personnel.

[0007] Preferably, the driving member includes a screw and a nut that are matched together, the screw is arranged along the axis of the sleeve and is rotationally connected to the cover, and the nut is fixed to the sleeve.

[0008] Preferably, the screw is connected to a motor, which is located at the top inner side of the cover. When the motor controls the screw to rotate, a nut engaged with the screw carries the sleeve along the screw's axial direction, causing the sleeve and the cover to slide relative to each other in the axial direction, thereby adjusting the height of the isolation cover's internal volume. This not only allows for adaptive accommodation of leaking containers of different sizes, but also allows the sleeve to be retracted inside the cover by controlling the motor when the isolation cover is not in use, reducing the overall height of the isolation cover, thereby minimizing the overall footprint of the isolation cover and facilitating storage. When the manipulator grabs the isolation cover in the storage state, the sleeve remains inside the cover, so that the center of gravity of the entire isolation cover is concentrated, which is beneficial to improving the stability of the manipulator in transferring the isolation cover and reducing the amplitude of shaking due to inertia during the transfer of the isolation cover, thereby improving the posture correction efficiency of the isolation cover when it falls above the radiation source, thereby further improving the radiation shielding efficiency and reducing the radiation diffusion time.

[0009] Preferably, the bottom of the housing is detachably connected to an annular base, with a flexible ring disposed around the bottom edge of the base, configured to closely conform to the base's placement surface. The flexible ring ensures stable contact and close fit with the placement surface, forming a sealed space between the isolation cover and the placement surface. The flexible ring can deform to adapt to uneven placement surfaces, reducing the risk of radiation leakage and diffusion from the bottom.

[0010] Preferably, the cross-section of the flexible ring is V-shaped, opening downward. The bottom end surface of the base is provided with a receiving groove, and the top of the flexible ring is fixed to the bottom of the receiving groove. The receiving groove is configured to provide space for the bottom of the flexible ring to deform when pressure is applied. The opening of the flexible ring is designed to form close contact with the ground when the flexible ring is under pressure, generating an adsorption force. When the robotic arm grasps the isolation cover and places it on a placement surface containing a radiation source, the end of the V-shaped opening of the flexible ring contacts the placement surface. Under the action of gravity, the isolation cover and the base press the flexible ring against the placement surface, causing the V-shaped opening of the flexible ring to contact the placement surface, creating a local negative pressure inside the opening of the flexible ring, thereby achieving adsorption of the flexible ring on the placement surface. Due to the fluidity of liquid, especially on an inclined surface, the structure of the flexible ring in the present invention facilitates sealing between the bottom of the isolation cover and the placement surface, reducing the possibility of leaked liquid radioactive material flowing out and spreading through the gap between the base and the placement surface, thereby improving the isolation effect of the isolation cover on liquid radioactive material. By restricting flow, the liquid radioactive material is concentrated, facilitating cleaning after the radiation dose decreases and reducing cleaning difficulty. The flexible ring seals the bottom of the base, and the motor controls the rotation of the screw to cause the cover to slide axially relative to the sleeve. Under the support restriction of the placement surface to the base, the cover slides upward relative to the sleeve, thereby increasing the overall volume inside the isolation cover. Since the bottom of the isolation cover is sealed with the placement surface, an internal negative pressure is formed while the internal volume of the isolation cover increases. The air pressure inside the isolation cover is lower than the external air pressure, which prevents the radioactive gas or aerosol in the isolation cover from leaking into the external environment, thereby improving the isolation ability of the isolation cover for radioactive gas or aerosol.

[0011] The V-shaped opening of the flexible ring is under pressure. When the part extending toward the inside of the base is under pressure, the space inside the V-shaped opening is reduced and the discharged airflow acts on the inside of the base, which can make the liquid radiation near the flexible ring relatively concentrated at the bottom center of the isolation cover, making it easy to clean it later.

[0012] Preferably, a radiation detector is provided within the isolation cover. The radiation detector is connected to a first controller, and the radiation detector can control a motor via the first controller. The radiation detector monitors the radiation dose within the isolation cover in real time and can issue a prompt when the radiation dose reaches a safe value, facilitating removal of the isolation cover for cleaning. When the radiation detector detects that the radiation dose has reached a safe value, the first controller controls the motor to rotate, causing the cover to descend relative to the sleeve, reducing the volume within the isolation cover, thereby releasing the negative pressure adsorption state of the isolation cover on the placement surface, allowing the robot to quickly grab the isolation cover and remove it from the processing location.

[0013] Preferably, a distance sensor is provided in the isolation cover, and the manipulator, motor and distance sensor are connected to a controller. The distance sensor is used to detect the distance between the base and the placement surface, and the manipulator and motor are controlled by the controller. The manipulator grabs the isolation cover and approaches the radiation source. Before the distance sensor detects that the distance between the base and the placement surface is reduced to a preset value, the controller controls the motor to rotate and the manipulator to maintain the grabbing action. Since the manipulator maintains the height position of the cover body, the motor is controlled at this time to realize the downward sliding of the sleeve relative to the cover body through the screw and nut. The process of the sleeve body descending actively realizes the extrusion of the flexible ring toward the placement surface, further improving the degree of fit between the flexible ring and the placement surface and the formation of negative pressure inside the V-shaped opening of the flexible ring, realizing the active sealing isolation of the isolation cover above the radiation source, reducing the risk of radiation energy leakage, and improving the protection effect. When the distance sensor detects that the distance between the base and the placement surface is reduced to a preset value, the controller controls the motor to stop and causes the manipulator to release the isolation cover, and then controls the motor to rotate. At this time, the cover body slides upward relative to the sleeve body, thereby expanding the overall internal volume of the isolation cover and achieving negative pressure sealing. The above technical solution realizes negative pressure sealing in the isolation cover without adding additional negative pressure suction equipment, thereby improving the integration of the isolation cover and reducing manufacturing costs. At the same time, the manipulator repeatedly adjusts its posture to release the isolation cover, thereby improving the isolation efficiency of the radiation source and the radiation isolation sealing effect. The entire isolation process is automated and easy to control.

[0014] Preferably, a bracket is connected to the top of the inner side of the sleeve, and the bracket is used to install the nut.

[0015] Preferably, a slider is provided on the inner wall of the side portion, and a sliding groove is provided on the outer wall of the housing body to cooperate with the slider, and the slider can slide along the axial direction of the housing body in the sliding groove. The slider cooperates with the sliding groove to realize the sliding direction of the housing body relative to the cover body.

[0016] Compared with the existing technology, the present invention has the following beneficial effects: radiation isolation is achieved through a mobile platform and a manipulator at a long distance and without contact, thereby improving isolation efficiency and protecting staff; the volume of the isolation cover is adjustable in height, which is convenient for adapting to different scenarios and enhances adaptability; the isolation cover can be retracted in height, and the posture correction speed of the isolation cover is improved by concentrated distribution of the center of gravity, thereby reducing the amount of radiation diffusion; the flexible ring achieves sealing inside the isolation cover through pressure adsorption on the placement surface, thereby reducing the risk of leakage of liquid substances; the flexible ring cooperates with the highly retractable isolation cover to achieve negative pressure inside the isolation cover, thereby reducing the risk of leakage of radioactive gas or aerosol; the distance sensor controls the manipulator and the motor through the controller to achieve position adjustment, active sealing, internal negative pressure and other actions of the isolation cover, thereby improving the integration of the isolation cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall layout of the present invention; Figure 2 It is a schematic cross-sectional view of the isolation cover; Figure 3 for Figure 2 A magnified schematic diagram of area A in the middle; Figure 4 Schematic diagram of the casing structure; Figure 5 This is a schematic diagram of the cover body and the sleeve body of the present invention in an unfolded state; Figure 6 This is a structural diagram of embodiment 2 of the present invention; Figure 7 for Figure 6 Enlarged schematic diagram of area B in the middle.

[0018] Figure numerals: isolation cover 1; cover body 11; sleeve body 12; slider 13; slide groove 14; grabbing part 15; manipulator 2; moving platform 3; driving part 4; screw 41; nut 42; motor 43; bracket 44; base 5; receiving groove 51; flexible ring 6; radiation detector 7; distance sensor 8; first magnetic part 91; second magnetic part 92. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described in detail below with reference to the specific embodiments and the accompanying drawings: Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example 1: See also Figure 1-Figure 2A fully automatic radiation protection tool for radioactive drug spillage includes: an isolation cover 1, a manipulator 2 configured to grab the isolation cover 1, and a mobile platform 3 configured to carry the manipulator 2. The isolation cover 1 has an internal volume and is provided with a driving member 4, and the driving member 4 is configured to realize the change of the internal volume of the isolation cover 1.

[0021] The mobile platform 3 includes a supporting platform, a remote-controlled electric universal wheel is installed at the bottom of the supporting platform, a battery, a motor and a main controller are installed in the supporting platform, and the manipulator 2 is arranged on the supporting platform. The battery supplies power to the electric universal wheel, the motor and the main controller, and the main controller is configured to control the electric universal wheel and the motor.

[0022] When radioactive material leaks, the mobile platform 3 is remotely controlled to move to the leakage site, and the isolation cover 1 is further lowered and attached to the plane where the leaked material is located by controlling the manipulator 2 to achieve radiation isolation and protection for the leaked radioactive material. When the radiation amount drops below the safe radiation value, the isolation cover 1 is raised by the manipulator 2, and the mobile platform 3 is controlled to carry the manipulator 2 and the isolation cover 1 to leave the contaminated area, providing operating space for subsequent related processing personnel and cleaning personnel. In the early stage of radioactive material leakage, this invention can ensure that the operator maintains a safe distance from the radiation source and has no contact with the radiation source, thereby achieving rapid isolation and protection of the radiation source. There is no need for workers to wear protective equipment to handle the radiation source at close range. On the one hand, it effectively protects the workers, and on the other hand, it reduces the time consumption of wearing protective equipment and improves the efficiency of radiation source isolation. The internal volume of the isolation cover 1 can be adjusted by the driving member 4. On the one hand, it is convenient to adaptively accommodate leakage containers of different sizes, thereby improving the adaptability of the tool to different radiation sources. At the same time, the internal pressure value of the isolation cover 1 can be adjusted by changing the volume to achieve the stability and sealing of the isolation cover 1 when placed on the ground, thereby reducing the possibility of radiation energy leakage during the isolation radiation period.

[0023] The isolation cover 1 includes a cover body 11 and a sleeve body 12. The cover body 11 has a top and a side. The sleeve body 12 fits inside the side and can slide axially. The sliding connection between the cover body 11 and the sleeve body 12 is always sealed. The top of the cover body 11 has a gripping portion 15, and the robot 2 can perform a gripping action on the gripping portion 15.

[0024] The inner wall of the side portion is a cylindrical surface, and the inner wall of the sleeve body 12 matches the cylindrical surface.

[0025] The cover body 11 and the sleeve body 12 can change the volume of the internal space of the isolation cover 1 by axial sliding, so as to adapt to leakage containers of different heights and sizes, and realize rapid and effective isolation of the radiation source without the need to transfer and adjust the leakage container, thereby improving the radiation shielding isolation efficiency, reducing the radiation diffusion range, and protecting the staff.

[0026] The driving member 4 includes a screw 41 and a nut 42 that are matched together. The screw 41 is arranged along the axis of the sleeve 12 and is rotationally connected to the cover 11 , and the nut 42 is fixed to the sleeve 12 .

[0027] The screw 41 is connected to a motor 43, which is located at the top inner side of the cover 11. When the motor 43 controls the rotation of the screw 41, the nut 42, which cooperates with the screw 41, carries the sleeve 12 along the axial direction of the screw 41, causing the sleeve 12 and the cover 11 to slide relative to each other in the axial direction, thereby adjusting the height of the internal volume of the isolation cover 1. On the one hand, this allows for adaptive accommodation of leaking containers of different sizes. On the other hand, when the isolation cover 1 is not in use, the motor 43 can be controlled to retract the sleeve 12 into the inner side of the cover 11, reducing the overall height of the isolation cover 1, which helps to reduce the overall space occupied by the isolation cover 1 and facilitates storage. When the manipulator 2 grabs the isolation cover 1 in the storage state, the sleeve 12 remains on the inner side of the cover body 11, so that the center of gravity of the isolation cover 1 as a whole is concentrated, which is beneficial to improving the stability of the manipulator 2 in transferring the isolation cover 1 and reducing the amplitude of the shaking of the isolation cover 1 due to inertia during the transfer process, thereby improving the posture correction efficiency of the isolation cover 1 when it falls above the radiation source, thereby further improving the radiation shielding efficiency and reducing the radiation diffusion time.

[0028] The bottom of the housing 12 is detachably connected to an annular base 5. A flexible ring 6 is provided around the bottom edge of the base 5, and is configured to fit tightly against the surface on which the base 5 is placed. The base 5 maintains stable contact and close contact with the placement surface via the flexible ring 6, forming a sealed space for the isolation cover 1 on the placement surface. The flexible ring 6 can deform to adapt to uneven placement surfaces, reducing the risk of radiation leakage and diffusion from the bottom.

[0029] See also Figure 3The cross-section of the flexible ring 6 is V-shaped with the opening facing downward. The bottom end surface of the base 5 is provided with a receiving groove 51. The top of the flexible ring 6 is fixed to the bottom of the receiving groove 51. The receiving groove 51 is configured to provide a deformation space when the bottom of the flexible ring 6 is under pressure. The opening of the flexible ring 6 is used to form a close contact with the ground and generate adsorption force when the flexible ring 6 is under pressure. When the manipulator 2 grabs the isolation cover 1 and places it on the placement surface with the radiation source, the end of the V-shaped opening of the flexible ring 6 contacts the placement surface. Under the action of gravity, the isolation cover 1 and the base 5 press the flexible ring 6 relative to the placement surface, so that the V-shaped opening of the flexible ring 6 is in close contact with the placement surface, forming a local negative pressure on the inner side of the opening of the flexible ring 6, thereby achieving adsorption of the flexible ring 6 on the placement surface. Since liquid has fluidity, especially on an inclined surface, the structure of the flexible ring 6 in the present invention is conducive to achieving a seal between the bottom of the isolation cover 1 and the placement surface, reducing the possibility of leaked liquid radioactive materials flowing out and diffusing from the gap between the base 5 and the placement surface, thereby improving the isolation effect of the isolation cover 1 on liquid radioactive materials, and also achieving the concentration of liquid radioactive materials by restricting the flow, so as to facilitate cleaning work after the radiation dose decreases and reduce the difficulty of cleaning; The flexible ring 6 seals the bottom of the base 5, and the motor 43 controls the rotation of the screw 41 to make the cover body 11 slide axially relative to the sleeve body 12. Under the support restriction of the placement surface to the base 5, the cover body 11 slides upward relative to the sleeve body 12, thereby increasing the overall volume inside the isolation cover 1. Since the bottom of the isolation cover 1 is sealed with the placement surface, the internal volume of the isolation cover 1 is increased while forming an internal negative pressure. The air pressure inside the isolation cover 1 is lower than the external air pressure, which prevents the radioactive gas or aerosol in the isolation cover 1 from leaking into the external environment, thereby improving the isolation ability of the isolation cover 1 to radioactive gas or aerosol.

[0030] The V-shaped opening of the flexible ring 6 is under pressure. When the part thereof extending toward the inner side of the base 5 is under pressure, the space inside the V-shaped opening is reduced and the discharged airflow acts on the inner side of the base 5, which can make the liquid radiation near the flexible ring 6 relatively concentrated at the bottom center of the isolation cover 1, making it easy to clean it later.

[0031] A radiation detector 7 is disposed within the isolation cover 1. The radiation detector 7 is connected to a first controller, which can control a motor 43 through the first controller. The radiation detector 7 monitors the radiation dose within the isolation cover 1 in real time and can issue a prompt when the radiation dose reaches a safe value, facilitating the removal of the isolation cover 1 for cleaning. Upon detecting that the radiation dose has reached a safe value, the radiation detector 7 controls the motor 43 through the first controller to rotate, causing the cover body 11 to descend relative to the sleeve body 12, reducing the volume within the isolation cover 1. This releases the negative pressure adsorption state of the isolation cover 1 on the placement surface, allowing the manipulator 2 to quickly grab the isolation cover 1 and remove it from the processing location.

[0032] See also Figure 4-Figure 5, a distance sensor 8 is provided in the isolation cover 1, and the manipulator 2, the motor 43 and the distance sensor 8 are connected to a second controller. The distance sensor 8 is used to detect the distance between the base 5 and the placement surface, and the manipulator 2 and the motor 43 are controlled by the second controller. The manipulator 2 grabs the isolation cover 1 and approaches the radiation source. Before the distance sensor 8 detects that the distance between the base 5 and the placement surface is reduced to a preset value, the second controller controls the motor 43 to rotate and the manipulator 2 to maintain the grabbing action. Since the manipulator 2 maintains the height position of the cover body 11, the motor 43 is controlled at this time to realize the downward sliding of the sleeve body 12 relative to the cover body 11 through the screw 41 and the nut 42. The process of the sleeve body 12 descending actively realizes the extrusion of the flexible ring 6 toward the placement surface, further improving the degree of fit between the flexible ring 6 and the placement surface and the formation of negative pressure inside the V-shaped opening of the flexible ring 6, realizing the active sealing isolation of the isolation cover 1 above the radiation source, reducing the risk of radiation energy leakage, and improving protection Effect: when the distance sensor 8 detects that the distance between the base 5 and the placement surface is reduced to a preset value, the second controller controls the motor 43 to stop and causes the manipulator 2 to release the isolation cover 1, and then controls the motor 43 to rotate. At this time, the cover body 11 slides upward relative to the sleeve body 12, thereby expanding the overall internal volume of the isolation cover 1 and realizing negative pressure sealing. The above technical solution realizes the negative pressure sealing work in the isolation cover 1 without adding additional negative pressure suction equipment, thereby improving the integration of the isolation cover 1 and reducing the manufacturing cost. At the same time, the manipulator 2 repeatedly adjusts the posture to release the isolation cover 1, thereby improving the isolation efficiency of the radiation source and the radiation isolation sealing effect. The entire isolation process is automated and easy to control.

[0033] A bracket 44 is connected to the top of the inner side of the sleeve body 12 , and the bracket 44 is used to install the nut 42 .

[0034] The inner wall of the side is provided with a slider 13, and the outer wall of the sleeve 12 has a slide groove 14 that cooperates with the slider 13. The slider 13 can slide along the axial direction of the sleeve 12 in the slide groove 14. The slider 13 cooperates with the slide groove 14 to realize the sliding direction of the sleeve 12 relative to the cover 11.

[0035] Example 2: See also Figure 6-Figure 7 On the basis of the first embodiment of the present invention: a magnetic structure is provided between the base 5 and the sleeve 12, and the magnetic structure is configured to be able to separate the base 5 from the sleeve 12 by power. The magnetic structure is evenly distributed on the base 5 in the circumferential direction.

[0036] The magnetic structure includes a first magnetic member 91 and a second magnetic member 92. The upper end of the base 5 has a countersunk hole, the first magnetic member 91 is movably arranged in the countersunk hole, and the second magnetic member 92 is installed at the bottom of the sleeve 12. The second magnetic member 92 is magnetically connected to the first magnetic member 91.

[0037] A demagnetizing component capable of electrically demagnetizing the second magnetic component 92 is provided in the sleeve body 12, and the first controller is connected to the demagnetizing component.

[0038] The base 5 is connected to the sleeve 12 through a magnetic structure. After the radiation dose in the isolation cover 1 is reduced to a safe level, the first controller controls the demagnetization component to demagnetize the second magnetic component 92. At this time, the first magnetic component 91 loses the magnetic connection with the second magnetic component 92, and the base 5 is separated from the sleeve 12. When the manipulator 2 grabs the isolation cover 1 and leaves the radiation source, the base 5 is retained in its original position to maintain the concentration and interception of liquid radioactive substances. On the one hand, it avoids environmental pollution caused by the flow of liquid after the isolation cover 1 is removed. On the other hand, the base 5 intercepts the liquid, which is convenient for cleaning personnel to quickly process and collect the radioactive substances in the base 5, optimizes the cleaning and processing steps of the radioactive substances, and improves the processing efficiency and cleaning efficiency of spilled radioactive substances.

[0039] The detachable connection between the base 5 and the sleeve 12 enables centralized cleaning of the base 5 in contact with radioactive substances and the flexible ring 6 thereunder, without the need to clean the entire isolation cover 1, thereby reducing cleaning costs.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. Fully automatic radiation protection tool for radiopharmaceutical spillage, including: An isolation cover (1), a manipulator (2) configured to grasp the isolation cover (1), and a mobile platform (3) configured to carry the manipulator (2), wherein the isolation cover (1) has an internal volume and is provided with a driving member (4), and the driving member (4) is configured to achieve a change in the internal volume of the isolation cover (1).

2. The fully automatic radiation protection tool for preventing radioactive drug spillage according to claim 1, characterized in that: The isolation cover (1) comprises a cover body (11) and a sleeve body (12), wherein the cover body (11) has a top and a side, and the sleeve body (12) fits inside the side and is axially slidable.

3. The fully automatic radiation protection tool for preventing radioactive drug spillage according to claim 2, characterized in that: The driving member (4) comprises a screw (41) and a nut (42) which are arranged in a coordinated manner. The screw (41) is arranged along the axis of the sleeve (12) and is rotationally connected to the cover (11). The nut (42) is fixed to the sleeve (12).

4. The fully automatic radiation protection tool for preventing radioactive drug spillage according to claim 3, characterized in that: The screw rod (41) is connected to a motor (43), and the motor (43) is arranged at the top inside the cover body (11).

5. The fully automatic radiation protection tool for preventing radioactive drug spillage according to claim 4, characterized in that: The bottom of the sleeve (12) is detachably connected to an annular base (5), and a flexible ring (6) is provided around the bottom edge of the base (5). The flexible ring (6) is configured to fit tightly with the placement surface of the base (5).

6. The fully automatic radiation protection tool for preventing radioactive drug spillage according to claim 5, characterized in that: The cross section of the flexible ring (6) is V-shaped with an opening facing downward, and a receiving groove (51) is provided on the bottom end surface of the base (5). The top of the flexible ring (6) is fixed to the bottom of the receiving groove (51), and the receiving groove (51) is configured to provide a deformation space when the bottom of the flexible ring (6) is under pressure.

7. The fully automatic radiation protection tool for preventing radioactive drug spillage according to claim 4, characterized in that: A radiation detector (7) is provided in the isolation cover (1), and the radiation detector (7) is connected to a first controller. The radiation detector (7) can control the motor (43) through the first controller.

8. The fully automatic radiation protection tool for preventing radioactive drug spillage according to claim 5, characterized in that: A distance sensor (8) is provided in the isolation cover (1); the manipulator (2), the motor (43) and the distance sensor (8) are connected to a second controller; the distance sensor (8) is used to detect the distance between the base (5) and the placement surface, and the manipulator (2) and the motor (43) are controlled by the second controller.

9. The fully automatic radiation protection tool for preventing radioactive drug spillage according to claim 3, characterized in that: A bracket (44) is connected to the top of the inner side of the sleeve (12), and the bracket (44) is used to install the nut (42).

10. The fully automatic radiation protection tool for preventing radioactive drug spillage according to claim 3, characterized in that: The inner wall of the side portion is provided with a slider (13), and the outer wall of the sleeve body (12) has a slide groove (14) that cooperates with the slider (13), and the slider (13) can slide axially along the sleeve body (12) in the slide groove (14).

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