Automatic dilution device for radiopharmaceuticals

Abstract

The utility model discloses an automatic radiopharmaceutical diluting device, which relates to the technical field of pharmaceutical dilution and comprises a protective cabinet, a tank body is arranged in the protective cabinet, the tops of two sides of the tank body are fixedly connected with supports, a liquid medicine tank is arranged above the supports, a peristaltic pump is fixedly mounted at the top of the tank body, and a liquid medicine tank is arranged above the peristaltic pump. The peristaltic pump is connected with the liquid medicine tank, the bottom of the liquid medicine tank is connected with a feeding pipe, a motor is installed on the top of the tank body, the output end of the motor is connected with a stirring rod, and stirring blades are arranged on the outer portion of the stirring rod, and through the arrangement of the liquid medicine tank, the peristaltic pump, the feeding pipe, the motor, the stirring rod and the stirring blades, the peristaltic pump is started; the peristaltic pump can accurately control liquid medicine in the liquid medicine tank to be conveyed into the tank body, the liquid medicine flows into the tank body through the feeding pipe, then the motor is started, and the motor can drive the stirring rod and the stirring blades to rotate, so that the liquid medicine in the tank body is evenly mixed.

Description

Technical Field

[0001] The utility model relates to the technical field of drug dilution, in particular to an automatic radioactive drug dilution device. Background Technique

[0002] The automatic radioactive drug dilution device integrates multiple technologies such as machinery, electronics, and automation control. Through a preset program and a precise control system, it automatically completes the dilution process of radioactive drugs, and is an automated device specifically used for diluting radioactive drugs.

[0003] There is a prior art dilution device for detecting the components of a synthetic drug, with a Chinese patent application number of CN201810983920.8, including a placement plate. A stirring tank is fixed to the upper end of the placement plate. A first cavity is provided inside the stirring tank. A cover is provided at the upper end of the stirring tank. An installation box is fixed to the upper end of the cover. A second cavity is provided inside the installation box. A driving device is provided inside the installation box. A second rotating rod is provided inside the first cavity. Filter plates are fixed to the opposite side walls of the first cavity. A plurality of stirring rods are equidistantly arranged on the second rotating rod. A plurality of stirring blades are equidistantly arranged on the opposite side walls inside the first cavity, and the stirring blades and the stirring rods correspond to each other. Through the transformation of the prior art, the present invention solves the problems of incomplete drug dilution and inconvenience. It uses two stirrings to achieve the full dissolution of the drug, and avoids drug particles caused by uneven stirring. It is convenient for installation and disassembly, easy to use, and has a simple operation. However, this device still has some defects.

[0004] This device lacks a mechanism for quantitatively proportioning the liquid medicine mixture, resulting in easy errors during operation. And the operator needs to manually adjust the dilution ratio, which is not only time-consuming and laborious, but also difficult to ensure the accuracy of each operation.

[0005] Therefore, we propose an automatic radioactive drug dilution device to solve the problems raised above. Content of the Utility Model

[0006] The purpose of the utility model is to provide an automatic radioactive drug dilution device to solve the problem in the above background technique that the existing device lacks a mechanism for quantitatively proportioning the liquid medicine mixture, resulting in easy errors during operation. And the operator needs to manually adjust the dilution ratio, which is not only time-consuming and laborious, but also difficult to ensure the accuracy of each operation.

[0007] To achieve the above object, the present utility model provides the following technical solutions: An automatic dilution device for radioactive drugs, comprising a protective cabinet, wherein a tank body is arranged inside the protective cabinet, and brackets are fixedly connected to the tops of both sides of the tank body. Above the brackets is arranged a liquid medicine tank, and a peristaltic pump is fixedly installed on the top of the tank body. The bottom of the liquid medicine tank is connected with a feed pipe. A motor is installed on the top of the tank body, the output end of the motor is connected with a stirring rod, and stirring blades are arranged on the outer part of the stirring rod.

[0008] Preferably, an external part of the output end of the motor is connected with a pulley group, the left end of the pulley group is connected with a reciprocating lead screw, and the bottom end of the reciprocating lead screw extends into the tank body.

[0009] By adopting the above technical solution, after the motor is started, the output end of the motor can drive the pulley group to rotate, and the other end of the pulley group is connected with the reciprocating lead screw, so that the reciprocating lead screw can rotate synchronously.

[0010] Preferably, a connecting sleeve is threadedly connected to the outer surface of the reciprocating lead screw, and a scraping brush is arranged on the outer surface of the connecting sleeve.

[0011] By adopting the above technical solution, the rotation of the reciprocating lead screw can drive the threadedly connected connecting sleeve to move up and down, so that the scraping brush on the outer wall of the connecting sleeve also moves accordingly, and the inner wall of the tank body can be cleaned.

[0012] Preferably, a guide rod is fixedly connected to the inside of the tank body, and the guide rod penetrates through the inside of the connecting sleeve.

[0013] Preferably, a placement groove is opened at the bottom end inside the protective cabinet, a bidirectional lead screw is connected to the inside of the placement groove through a bearing, and the right end of the bidirectional lead screw is connected with a driving motor.

[0014] By adopting the above technical solution, after the driving motor is started, it can drive the bidirectional lead screw to rotate.

[0015] Preferably, a threaded sleeve is threadedly connected to the outer surface of the bidirectional lead screw, a limiting plate is fixedly connected to the top of the threaded sleeve, a clamping block is fixedly connected to the right side of the limiting plate, and a rubber pad is arranged on one side of the clamping block.

[0016] By adopting the above technical solution, when the bidirectional lead screw rotates, it can drive the threadedly connected threaded sleeve on the outer surface to move horizontally, and the limiting plate and the clamping block on the top of the threaded sleeve also move accordingly, so as to clamp the tank body.

[0017] Compared with the prior art, the beneficial effect of the present utility model is: This automatic dilution device for radioactive drugs;

[0018] 1. By setting up a liquid medicine tank, a peristaltic pump, a feed pipe, a motor, a stirring rod and stirring blades, start the peristaltic pump. The peristaltic pump can accurately control the liquid medicine inside the liquid medicine tank and transport it into the tank body, and it flows into the inside of the tank body through the feed pipe. Then start the motor, and the motor can drive the stirring rod and the stirring blades to rotate, so that the liquid medicine inside the tank body is evenly mixed;

[0019] 2. By setting up a reciprocating lead screw, a connecting sleeve, a brush and a clamping block, when the motor rotates, it can drive the pulley set and the reciprocating lead screw to rotate. The connecting sleeve threadedly connected to the reciprocating lead screw can drive the brush to move up and down, so that the brush can clean the inner wall of the tank body. At the same time, when the driving motor starts, it can drive the bidirectional lead screw to rotate and drive the limiting plate and the clamping block to fit against the outer wall of the tank body at the same time, so as to achieve the purpose of facilitating the clamping and fixing of the tank body. Brief Description of the Drawings

[0020] Figure 1 It is a front view structural schematic diagram of the present utility model;

[0021] Figure 2 It is a front view sectional structural schematic diagram of the protective cabinet of the present utility model;

[0022] Figure 3 It is a top view sectional structural schematic diagram of the tank body of the present utility model;

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the connecting sleeve of the present utility model;

[0024] Figure 5 It is a three-dimensional structural schematic diagram of the stirring rod and the stirring blades of the present utility model.

[0025] In the figure: 1. Protective cabinet; 2. Tank body; 3. Bracket; 4. Liquid medicine tank; 5. Peristaltic pump; 6. Feed pipe; 7. Motor; 8. Stirring rod; 9. Stirring blades; 10. Pulley set; 11. Reciprocating lead screw; 12. Connecting sleeve; 13. Brush; 14. Guide rod; 15. Placing groove; 16. Bidirectional lead screw; 17. Driving motor; 18. Threaded sleeve; 19. Limiting plate; 20. Clamping block; 21. Rubber pad. Detailed Embodiment

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer to Figures 1-5, the present utility model provides a technical solution: a radioactive drug automatic dilution device, including a protective cabinet 1. Inside the protective cabinet 1, there is a tank body 2, and brackets 3 are fixedly connected to the tops of both sides of the tank body 2. Above the brackets 3, there is a liquid medicine tank 4, and a peristaltic pump 5 is fixedly installed on the top of the tank body 2. And a feed pipe 6 is connected to the bottom of the liquid medicine tank 4. A motor 7 is installed on the top of the tank body 2, and the output end of the motor 7 is connected to a stirring rod 8. And stirring blades 9 are arranged on the outer part of the stirring rod 8. By starting the peristaltic pump 5 and the motor 7, the delivery of the liquid medicine from the liquid medicine tank 4 into the tank body 2 can be precisely controlled. And the feed pipe 6 is connected to the bottom of the liquid medicine tank 4, which can ensure that the liquid medicine can smoothly flow into the tank body 2. At the same time, the motor 7 drives the stirring rod 8 and the stirring blades 9 to rotate, uniformly mixing the liquid medicine in the tank body 2, ensuring the consistency of the liquid medicine components, and accurately quantifying the liquid medicine ratio.

[0028] A pulley group 10 is connected to the outside of the output end of the motor 7, and the left end of the pulley group 10 is connected to a reciprocating lead screw 11. And the bottom end of the reciprocating lead screw 11 extends into the tank body 2. A connecting sleeve 12 is threadedly connected to the outer surface of the reciprocating lead screw 11, and a brush 13 is arranged on the outer surface of the connecting sleeve 12. A guide rod 14 is fixedly connected inside the tank body 2, and the guide rod 14 penetrates through the inside of the connecting sleeve 12. A placement groove 15 is opened at the bottom end inside the protective cabinet 1, and a bidirectional lead screw 16 is connected to the inside of the placement groove 15 through a bearing. And a driving motor 17 is connected to the right end of the bidirectional lead screw 16. A threaded sleeve 18 is threadedly connected to the outer surface of the bidirectional lead screw 16, and a limiting plate 19 is fixedly connected to the top of the threaded sleeve 18. A clamping block 20 is fixedly connected to the right side of the limiting plate 19, and a rubber pad 21 is arranged on one side of the clamping block 20. When the motor 7 drives the stirring blades 9 to uniformly mix the liquid medicine, it can drive the pulley group 10 to rotate. And the other end of the pulley group 10 is connected to the reciprocating lead screw 11. Therefore, the reciprocating lead screw 11 will rotate synchronously. With the rotation of the reciprocating lead screw 11, the threadedly connected connecting sleeve 12 can be driven to move up and down, so that the brush 13 on the outer wall of the connecting sleeve 12 also moves up and down accordingly, effectively cleaning the residues on the inner wall of the tank body 2 and keeping the tank body 2 clean. By starting the driving motor 17, the driving motor 17 drives the bidirectional lead screw 16 to rotate. The threaded sleeve 18 threadedly connected to the bidirectional lead screw 16 can drive the limiting plate 19 and the clamping block 20 to move, and can clamp and fix the tank body 2 to ensure the stability of the tank body 2 during the operation process.

[0029] Working principle: When using this automatic radioactive drug dilution device, first of all, the shielding cabinet 1 is made of high-density lead material, which can effectively isolate the radioactive source and reduce radiation leakage. Start the drive motor 17, and the drive motor 17 drives the bidirectional lead screw 16 to rotate. The thread sleeve 18 threadedly connected to the bidirectional lead screw 16 can drive the limit plate 19 and the clamping block 20 to move, so as to clamp and fix the tank body 2. Start the peristaltic pump 5 and the motor 7, and precisely control the delivery of the liquid medicine from the liquid medicine tank 4 into the tank body 2. Moreover, the bottom of the liquid medicine tank 4 is connected with a feed pipe 6 to ensure that the liquid medicine can flow smoothly into the tank body 2. At the same time, the motor 7 drives the stirring rod 8 and the stirring blades 9 to rotate to uniformly mix the liquid medicine in the tank body 2. When the motor 7 rotates, it can drive the pulley group 10 and the reciprocating lead screw 11 to rotate. The connecting sleeve 12 threadedly connected to the reciprocating lead screw 11 can drive the brush 13 to move up and down, so that the brush 13 can clean the inner wall of the tank body 2.

[0030] Thus, a series of operations are completed. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0031] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An automatic dilution device for radioactive drugs, comprising a protective cabinet (1), characterized in that: Inside the protective cabinet (1), there is a tank body (2) arranged, and brackets (3) are fixedly connected to the tops of both sides of the tank body (2). Above the brackets (3), there is a liquid medicine tank (4), and a peristaltic pump (5) is fixedly installed on the top of the tank body (2). Moreover, a feed pipe (6) is connected to the bottom of the liquid medicine tank (4); A motor (7) is installed on the top of the tank body (2), and the output end of the motor (7) is connected to a stirring rod (8). Moreover, stirring blades (9) are arranged on the outer part of the stirring rod (8).

2. The automatic dilution device for radioactive drugs according to claim 1, characterized in that: The outer part of the output end of the motor (7) is connected to a pulley group (10), and the left end of the pulley group (10) is connected to a reciprocating lead screw (11). Moreover, the bottom end of the reciprocating lead screw (11) extends into the tank body (2).

3. The automatic dilution device for radioactive drugs according to claim 2, characterized in that: A connecting sleeve (12) is threadedly connected to the outer surface of the reciprocating lead screw (11), and a brush (13) is arranged on the outer surface of the connecting sleeve (12).

4. The automatic dilution device for radioactive drugs according to claim 1, wherein: A guide rod (14) is fixedly connected to the inside of the tank body (2), and the guide rod (14) passes through the inside of the connecting sleeve (12).

5. A radioactive drug automatic dilution device according to claim 1, characterized in that: A placement groove (15) is formed at the bottom end inside the protective cabinet (1), and a bidirectional lead screw (16) is connected to the inside of the placement groove (15) through a bearing. Moreover, a driving motor (17) is connected to the right end of the bidirectional lead screw (16).

6. The automatic dilution device for radioactive drugs according to claim 5, characterized in that: A threaded sleeve (18) is threadedly connected to the outer surface of the bidirectional lead screw (16), and a limiting plate (19) is fixedly connected to the top of the threaded sleeve (18). A clamping block (20) is fixedly connected to the right side of the limiting plate (19), and a rubber pad (21) is arranged on one side of the clamping block (20).

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