A protective device based on semi-automatic radiopharmaceutical dispensing

Abstract

This utility model discloses a protective device based on semi-automatic radiopharmaceutical dispensing, relating to the field of experimental equipment technology. It includes a drug storage bottle with a hollow dispensing column at the top. This semi-automatic radiopharmaceutical dispensing protective device uses a pressure difference to drive the drug through a conical suction tube for rapid extraction. A self-resetting spring hinge and a U-shaped lever linkage structure open during dispensing to create ample operating space, and releases the lever to reset, providing a protective ring around the hollow dispensing column. The bottom protective plates on both sides quickly engage with protruding and concave locking plates. A receiving sponge below the conical suction tube at the bottom can promptly catch dripping drug, preventing radioactive leakage at the source. Its detachable design with the consumable holder allows for quick replacement, effectively reducing the probability of cross-contamination and comprehensively ensuring the safety of experimental personnel and the cleanliness of the experimental environment.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment technology, and in particular to a protective device based on semi-automatic radiopharmaceutical dispensing. Background Technology

[0002] In radiopharmaceutical synthesis experiments, the dispensing of the drug solution places extremely high demands on the safety, sealing, and ease of operation of the equipment. If the radiopharmaceutical solution leaks or causes cross-contamination, it will not only endanger the health of the experimental personnel, but also pollute the experimental environment, increasing subsequent cleanup costs and safety risks.

[0003] A radiopharmaceutical handling protective device, Chinese Patent No. CN219259549U, includes a protective box, a turntable, and a lifting platform. During the dispensing operation, the turntable rotates the dispensing bottle to a position facing the delivery tube. The lifting platform moves the drug container and delivery tube vertically, allowing the delivery tube to pass through the bottle stop of the dispensing bottle and extend into the bottle. Under the action of a metering pump, the radiopharmaceutical is delivered to the dispensing bottle through the delivery tube. After the dispensing dose is reached, the lifting platform resets the drug container and delivery tube, and the delivery tube disengages from the bottle stop, completing the dispensing operation. The bottle stop seals the bottle opening to prevent leakage. The protective box has a split structure, allowing operators to easily remove the dispensing bottle by opening the protective box. This design ensures operational safety while reducing operational difficulty and the workload of operators.

[0004] Traditional radiopharmaceutical dispensing mainly relies on manual control of semi-automatic equipment for liquid extraction. However, it lacks a specific protective structure for radiopharmaceutical liquids, leaving the suction rod exposed. This poses a high risk of liquid dripping during movement and makes it difficult to provide continuous and effective protection for the core suction components. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a protective device based on semi-automatic radiopharmaceutical dispensing, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a protective device based on semi-automatic radiopharmaceutical dispensing, comprising a drug storage bottle, an aspirating and dispensing hollow column fitted to the upper end of the drug storage bottle, a negative pressure airbag fixedly connected to the upper end of the aspirating and dispensing hollow column, a conical aspirating tube fixedly connected to the lower end of the aspirating and dispensing hollow column, the conical aspirating tube extending into the drug storage bottle, a top horizontal plate fixedly connected to the outer side of the connection between the negative pressure airbag and the aspirating and dispensing hollow column, a self-resetting spring hinge hinged to the middle of the top horizontal plate, a U-shaped lever symmetrically arranged at the upper end of the self-resetting spring hinge, a semi-arc cylinder rotatably connected to the lower end of the self-resetting spring hinge, and a bottom protective plate fixedly connected to the lower end of the semi-arc cylinder.

[0007] As a further technical solution of this utility model, a recessed docking slot is provided at the right end of the bottom protective plate on the left side, and a protruding docking plate is fixedly connected to the left end of the bottom protective plate on the right side.

[0008] As a further technical solution of this utility model, the protruding docking plate and the bottom protective plate are interlocked, and a consumable bracket is fixedly connected to the upper end of the bottom protective plate on the right side.

[0009] As a further technical solution of this utility model, the upper end of the consumable bracket is detachably connected to a liquid-receiving sponge consumable, which is located below the conical suction tube.

[0010] As a further technical solution of this utility model, a hand-held main shaft is fixedly connected between the negative pressure airbag and the liquid-absorbing and dispensing hollow column, and side-adaptive grooves are symmetrically opened at both ends of the self-resetting spring hinge.

[0011] As a further technical solution of this utility model, the side adapter groove and the U-shaped lever cooperate with each other, and the two semi-arc cylinders are engaged on the left and right sides of the liquid absorption and dispensing hollow column.

[0012] As a further technical solution of this utility model, an observation side plate is fixedly connected to the outer end of the semi-circular cylinder on the left side. The observation side plate is made of transparent material.

[0013] This invention provides a protective device based on semi-automatic radiopharmaceutical dispensing, which has the following advantages compared with the prior art: This design presents a protective device based on semi-automatic radiopharmaceutical dispensing. It utilizes a pressure differential to drive the liquid pharmacy through a conical suction tube for rapid extraction. A self-resetting spring hinge and a U-shaped lever linkage structure open during dispensing to create ample operating space, and releases the lever to reset, providing a protective enclosure around the hollow dispensing column. The bottom protective plates on both sides engage quickly with protruding and concave locking plates. A receiving sponge below the conical suction tube at the bottom promptly catches any dripping liquid, preventing radioactive leakage at the source. Its detachable design with the consumable holder allows for rapid replacement, effectively reducing the probability of cross-contamination and comprehensively ensuring the safety of laboratory personnel and the cleanliness of the experimental environment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the semi-circular cylindrical structure of this utility model; Figure 2 This is a schematic diagram of the open state structure of the semi-circular cylinder of this utility model. Figure 3 This is a schematic diagram of the hollow column structure for liquid absorption and dispensing according to this utility model; Figure 4 For the present utility model Figure 3Enlarged schematic diagram of a partial section of the bottom protective plate.

[0015] In the picture: 1. Liquid storage bottle; 2. Hollow column for liquid aspiration and dispensing; 3. Negative pressure airbag; 4. Conical suction tube; 5. Top horizontal plate; 6. Self-resetting spring hinge; 7. U-shaped lever; 8. Semi-circular cylinder; 9. Observation side plate; 10. Bottom protective plate; 11. Protruding docking plate; 12. Concave docking slot; 13. Consumable bracket; 14. Liquid-absorbing sponge consumable; 15. Side fitting groove; 16. Hand-held spindle. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-4 This utility model provides a technical solution for a protective device based on semi-automatic radiopharmaceutical dispensing: It includes a drug storage bottle 1, with a hollow dispensing column 2 fitted to the upper end of the storage bottle 1. A negative pressure airbag 3 is fixedly connected to the upper end of the hollow dispensing column 2, and a conical suction tube 4 is fixedly connected to the lower end of the column. The conical suction tube 4 extends into the storage bottle 1. A top horizontal plate 5 is fixedly connected to the outer side of the connection between the negative pressure airbag 3 and the hollow dispensing column 2. A self-resetting spring hinge 6 is hinged to the middle of the top horizontal plate 5. A U-shaped lever 7 is symmetrically arranged at the upper end. A semi-circular cylinder 8 is rotatably connected to the lower end of the self-resetting spring hinge 6. A bottom protective plate 10 is fixedly connected to the lower end of the semi-circular cylinder 8. Before taking liquid, one hand can move the U-shaped lever 7 to drive the semi-circular cylinder 8 to open and close through the self-resetting spring hinge 6, opening the liquid taking space. The other hand can squeeze the negative pressure air bag 3 to take liquid normally. After taking liquid, the self-resetting spring hinge 6 can drive the semi-circular cylinder 8 to automatically reset after releasing the U-shaped lever 7 to form effective protection until it is moved into the dispensing bottle for storage.

[0018] Please see Figures 2-4 The bottom protective plate 10 on the left side has a recessed docking slot 12 on its right end. The bottom protective plate 10 on the right side has a protruding docking plate 11 fixedly connected to its left end. The protruding docking plate 11 and the bottom protective plate 10 are interlocked. The bottom protective plate 10 on the right side has a consumable bracket 13 fixedly connected to its upper end. The upper end of the consumable bracket 13 is detachably connected to a liquid-absorbing sponge consumable 14, which is located below the conical suction tube 4.

[0019] Please see Figure 2 Figure 4 A hand-held spindle 16 is fixedly connected between the negative pressure airbag 3 and the liquid-absorbing and dispensing hollow column 2. The left and right ends of the self-resetting spring hinge 6 are symmetrically provided with side-adapting grooves 15. The side-adapting grooves 15 and the U-shaped lever 7 cooperate with each other. Two semi-circular cylinders 8 are engaged on the left and right sides of the liquid-absorbing and dispensing hollow column 2. The outer end of the semi-circular cylinder 8 on the left side is fixedly connected with an observation side plate 9, which is made of transparent material.

[0020] The working principle of this invention is as follows: During the experiment, when transferring liquid, squeezing the negative pressure airbag 3 creates a negative pressure environment inside the liquid-absorbing and dispensing hollow column 2. The pressure difference drives the liquid in the medicine storage bottle 1 through the conical suction tube 4 into the liquid-absorbing and dispensing hollow column 2, achieving efficient extraction of the liquid and facilitating timely monitoring of the dispensing progress. Before the liquid extraction process, one hand can move the U-shaped lever 7, which, through the self-resetting spring hinge 6, drives the semi-circular cylinder 8 to open and close, opening the liquid extraction space. The other hand can then squeeze the negative pressure airbag 3 or operate the electrical drive switch of the negative pressure airbag 3 for normal liquid extraction. After extraction, the self-resetting spring hinge 6, after releasing the U-shaped lever 7, can automatically reset the semi-circular cylinder 8, maintaining the device in a stable protective state. The semi-circular cylinder 8 facilitates the liquid extraction and dispensing process. The hollow column 2 forms a ring-shaped protection. The bottom protective plates 10 on both sides achieve quick docking through the engagement of the protruding docking plate 11 and the concave docking slot 12. The consumable bracket 13 on the bottom protective plate 10 on the right side is used to fix the liquid-receiving sponge consumable 14. This consumable is located below the conical suction tube 4 and can catch any liquid that may drip during the movement in time, avoiding the safety hazards caused by the leakage of radioactive liquid. The detachable connection design between the liquid-receiving sponge consumable 14 and the consumable bracket 13 makes it easy to replace quickly after use and reduces the risk of cross-contamination. The transparent observation side plate 9 allows the operator to clearly observe the flow of liquid and the situation inside the liquid-receiving and dispensing hollow column 2. The entire device achieves safe and efficient dispensing while taking into account the ease of operation and safety of use through the synergistic effect of each component.

[0021] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A protective device based on semi-automatic radiopharmaceutical dispensing, characterized in that, The device includes a medicine storage bottle, with a hollow liquid-absorbing and dispensing column fitted to the upper end of the storage bottle. A negative pressure airbag is fixedly connected to the upper end of the hollow liquid-absorbing and dispensing column, and a conical liquid-absorbing tube is fixedly connected to the lower end of the column, extending into the medicine storage bottle. A top horizontal plate is fixedly connected to the outer side of the connection between the negative pressure airbag and the hollow liquid-absorbing and dispensing column. A self-resetting spring hinge is hinged to the middle of the top horizontal plate. A U-shaped lever is symmetrically arranged at the upper end of the self-resetting spring hinge, and a semi-circular cylinder is rotatably connected to the lower end of the hinge. A bottom protective plate is fixedly connected to the lower end of the semi-circular cylinder.

2. The protective device based on semi-automatic radiopharmaceutical dispensing according to claim 1, characterized in that, The bottom protective plate on the left side has a recessed docking slot on its right end, and the bottom protective plate on the right side has a protruding docking plate fixedly connected to its left end.

3. A protective device based on semi-automatic radiopharmaceutical dispensing according to claim 2, characterized in that, The protruding docking plate and the bottom protective plate are interlocked, and a consumable bracket is fixedly connected to the upper end of the bottom protective plate on the right side.

4. A protective device based on semi-automatic radiopharmaceutical dispensing according to claim 3, characterized in that, The upper end of the consumable support is detachably connected to a liquid-absorbing sponge, which is located below the conical suction tube.

5. A protective device based on semi-automatic radiopharmaceutical dispensing according to claim 1, characterized in that, A hand-held spindle is fixedly connected between the negative pressure airbag and the liquid-absorbing hollow column, and side-adaptive grooves are symmetrically opened at both ends of the self-resetting spring hinge.

6. A protective device based on semi-automatic radiopharmaceutical dispensing according to claim 5, characterized in that, The side-adaptive groove and the U-shaped lever cooperate with each other, and the two semi-arc cylinders are engaged on the left and right sides of the liquid absorption and dispensing hollow column.

7. A protective device based on semi-automatic radiopharmaceutical dispensing according to claim 1, characterized in that, An observation side plate is fixedly connected to the outer end of the semi-circular cylinder located on the left side. The observation side plate is made of transparent material.

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