CN216419295U - Multifunctional purification module for solid target nuclide - Google Patents
Multifunctional purification module for solid target nuclide Download PDFInfo
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- CN216419295U CN216419295U CN202122666809.6U CN202122666809U CN216419295U CN 216419295 U CN216419295 U CN 216419295U CN 202122666809 U CN202122666809 U CN 202122666809U CN 216419295 U CN216419295 U CN 216419295U
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Abstract
The utility model provides a multi-functional purification module of solid target nuclide, including material portion, synthetic unit, main control unit, preceding fixed subassembly and receiving part. Through setting up pressure measurement device, liquid induction system, radioactivity test probe and waste liquid resorption function, make the utility model discloses a purification module can realize the purification of multiple metal nuclide, can also realize real time monitoring simultaneously, and the operation is also more stable to the nuclide purity that the purification obtained is higher.
Description
Technical Field
The utility model belongs to the technical field of the radioisotope operation and specifically relates to a multi-functional purification module of solid target nuclide.
Background
The nuclear medicine imaging technology is developing vigorously on the basis of PET molecular imaging research, and PET/CT molecular imaging agents are applied to clinical medical treatment in the late stage of the 80 th 20 th century, and play an important role in diagnosis and pathophysiology mechanism research of diseases such as tumors, cardiovascular diseases, neuropsychosis, immune systems, diabetes and the like.64Cu，68Ga，89The application of metal nuclides such as Zr greatly promotes the development of PET/CT imaging agents.64Cu、68Ga and89zr can be produced by a reactor or a medical accelerator and then is separated and purified by a resin column. Because the production process of each metal nuclide is different, the purification process and the eluent type have great difference, and no module can meet the purification requirements of various metal nuclides, realize high-efficiency stable operation and real-time monitoring and provide higher purification efficiency.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a multi-functional purification module of solid target nuclide, its equipment operation is more stable, and the purification precision is higher, is applicable to the purification of multiple type nuclide.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a multifunctional purification module for solid target nuclide, which comprises a material part, a synthesis unit, a main control unit, a front fixing component and a receiving part; the material part is arranged above the synthesis unit, and the synthesis unit is fixed above the main control unit; the material part, the synthesis unit, the main control unit and the receiving part are connected with each other through purification pipelines to form a fluid flow path.
Further, the material part comprises a target water bottle and a drenching and washing liquid bottle; the leacheate is one of concentrated hydrochloric acid, dilute hydrochloric acid, oxalic acid, ultrapure water and alkali liquor.
Preferably, the concentrated hydrochloric acid is 6-12M HCl solution; dilute hydrochloric acid is 0.1-2M HCl solution; the alkali liquor is sodium acetate solution, sodium carbonate solution or sodium hydroxide solution; 2-5 shower lotion bottles.
Further, the receiving part comprises a waste liquid bottle and a product bottle; and the outlet of the waste liquid bottle is respectively connected with the acid removing column.
Preferably, the number of the waste liquid bottles is 2-5; the filler of the acid removal column is selected from at least one of soda lime and anhydrous sodium sulfate.
Further, the synthesis unit is composed of a replaceable clamping plate, a panel and a main body; two sides of the synthesis unit main body are respectively provided with a hasp, and the outer side of the synthesis unit main body is also provided with a compressed air pressure regulating valve; the panel of the synthesis unit is distributed with an upper row of pressure pipe cylinders and a lower row of pressure pipe cylinders, each pressure pipe cylinder is connected with a compressed air pneumatic electromagnetic valve, the electromagnetic valves are integrated in the main body of the synthesis unit, and the panel is also provided with a left positioning pin and a right positioning pin.
Furthermore, the left end and the right end of the replaceable clamping plate are respectively provided with a fixing hole with the same size as the positioning pin, and the clamping plate is provided with two rows of pressure pipe holes vertically; the clamping plate is consistent with the panel of the synthesis unit in size and is buckled on the locating pin through the fixing hole, and each pressure pipe hole corresponds to one pressure pipe cylinder.
Furthermore, the purification pipeline is distributed on the replaceable clamping plate, the pressure pipe hole is provided with a clamping groove structure, and the purification pipeline is embedded in the clamping groove and fixed on the clamping plate through a pipe buckle; the initial end of the purification pipeline is connected with the material part, and the tail end of the purification pipeline is connected with the receiving part.
Furthermore, two ends of the front fixing component are provided with buckle grooves which are used for hasp action with two sides of the synthesis unit main body to be fixed on the synthesis unit panel; an upper row of bosses and a lower row of bosses are arranged on the inner side of the front fixing assembly, the diameters of the bosses and the pipe pressing holes are consistent, when the front fixing assembly is fixed on a panel of a synthesis unit, the bosses are positioned in the pipe pressing holes, and the bosses and the pipe pressing cylinders are pressed to form a cylinder pipe pressing valve; the handle is installed to preceding fixed subassembly outside.
Further, the main control unit comprises an ultrasonic bubble sensor, a peristaltic pump I, a radioactive probe, a purification column, a peristaltic pump II and a vacuum system; a purification pipeline connected with the inlet end of the peristaltic pump I flows through the upper part of the ultrasonic bubble sensor; the inlet end of the peristaltic pump I is respectively connected with a target water bottle and an eluent bottle of the material part, and the outlet end of the peristaltic pump I is connected with a purification column; the outlet end of the purification column is respectively connected with the waste liquid bottle and the product bottle of the receiving part; the radioactive probe is positioned in the main control unit and is opposite to the fixed position of the purification column; the inlet end of the peristaltic pump II is connected with the product bottle, and the outlet end of the peristaltic pump II is connected with the transfer part.
Furthermore, the main control unit is also provided with a vacuum system; the vacuum system is communicated with the whole purification pipeline; the vacuum system consists of a vacuum pump, a stop valve, a negative pressure sensor and a vacuum buffer bottle.
The beneficial effects of the utility model reside in that: the multifunctional purification module for the solid target nuclide is high in universality, and is provided with a vacuum system, an ultrasonic bubble sensor and a radioactivity detection probe through the main control unit so as to provide functions of pressure detection, liquid induction, real-time monitoring and the like, so that the performance of equipment is greatly improved, and the operation is more stable. In addition, the reverse rotation of the peristaltic pump I provides a waste liquid suck-back function for the module, so that the purity of the purified nuclide is higher. Meanwhile, the synthesis unit and the main control unit are separately arranged, so that the functions combined with other functions, such as the combination with a synthesis module, can be further developed conveniently.
Drawings
Fig. 1 is a schematic perspective view of a multifunctional purification module for solid target nuclides according to embodiment 1 of the present invention;
fig. 2 is a schematic view of the action of the cylinder pipe pressing valve in embodiment 1 of the present invention;
fig. 3 is a schematic diagram of a replaceable card board of a synthesis unit in embodiment 1 of the present invention;
fig. 4 is a schematic view of a control terminal interface of the purification system in embodiment 1 of the present invention;
wherein the reference numerals are represented as:
1-a synthesis unit; 110-a hasp; 120-replaceable card; 121-pipe buckle; 122-pipe pressing hole; 123-positioning pins; 130-compressed air pressure regulating valve; 140-a pipe-pressing cylinder; 150-synthesizing a unit panel; 2-a main control unit; 210-an ultrasonic bubble sensor; 221-peristaltic pump I; 222-peristaltic pump II; 230-built-in radioactive probe; 240-purification column; 250-a vacuum system; 251-vacuum buffer bottle R0; 252-a negative pressure sensor; 253-vacuum pump; 3-front fixing component; 310-a boss; 320-catching grooves; 330-a handle; 4-material part; 411-target water bottle R1; 412-414-leacheate bottles R2, R3, R4; 5-a receiving section; 510-acid removal column; 521-523-waste liquid bottles R5, R6 and R7; 524-product bottle R8; 611 to 619-air cylinder pressure pipe valves V02 to V05, V15 to V18 and V20; 620-stop valve V21; a slot (in which the purification tubing is embedded, not shown).
Detailed Description
The structural features of the present invention will be further explained with reference to the drawings and examples so that those skilled in the art can practice the invention with reference to the description. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
As shown in fig. 1, the multifunctional purification module for solid target nuclides according to the present embodiment is a schematic perspective view, and includes a material part 4, a synthesis unit 1, a main control unit 2, a front fixing assembly 3, and a receiving part 5; the material part 4 is arranged above the synthesis unit 1, and the synthesis unit 1 is arranged above the main control unit 2; the front fixing component 3 is fixed on the composite unit panel 150 through the buckle 110 and the buckle slot 320; the material part 4, the synthesis unit 1, the main control unit 2 and the receiving part 5 are connected with each other through a purification pipeline to form a fluid flow path; in the following description, the present embodiment is explained with the composite unit panel 150 as a front surface.
The synthesis unit panel 150 is provided with an upper row of pipe pressing cylinders 140, a lower row of pipe pressing cylinders 140, a left positioning pin 123 and a right positioning pin 123; the outside of the main body of the synthesis unit 1 is also provided with a compressed air pressure regulating valve 130 for supplying a constant pressure to the inside of the system pipeline.
The purification pipeline distributes on removable cardboard 120, and the cardboard has two rows of pressure tube hole 122 from top to bottom, presses tube hole 122 to have the draw-in groove structure, and the purification pipeline inlays in the draw-in groove, is fixed on cardboard 120 by pipe strap 121. Clamping grooves are also distributed among the pressure pipe holes 122, and purification pipelines are distributed in the clamping grooves to play a guiding role. The initial end of the purification pipeline is respectively connected with the material part, and the tail end of the purification pipeline is respectively connected with the receiving part. The purification pipeline can be made of silicone tube, polytetrafluoroethylene tube, etc.
The replaceable clamping plate 120 is fixed on the panel 150 of the synthesis unit through a positioning pin 123, and the pressure pipe holes 122 on the clamping plate correspond to the pressure pipe cylinders 140 of the synthesis unit one by one. When the replaceable clamping plate 120 is installed on the panel 150 of the synthesis unit, the pipe pressing cylinder 140 can stretch into and retract from the pipe pressing hole, the pipe pressing cylinder 140 is controlled by a compressed air pneumatic electromagnetic valve, and the compressed air pneumatic electromagnetic valve is integrated inside the synthesis unit 1 and controlled by control terminal software. The manifold apertures 122 may be arranged according to the fluid flow path requirements.
A replaceable card 120 is mounted between the synthesis unit 1 and the front fixed component 3. The inner side surface of the front fixing component 3 is provided with an upper row of bosses 310 and a lower row of bosses 310 (the inner side surface is the joint surface with the clamping plate), the diameters of the bosses 310 and the pipe pressing holes 122 are the same, when the front fixing component 3 is buckled on the synthesis unit 1, the bosses 310 are located in the pipe pressing holes 122, and the bosses 310 can be matched with the pipe pressing cylinder 140 to jointly extrude the purified pipeline to form a cylinder pipe pressing valve (as shown in fig. 2). The outer side surface of the front fixing component 3 is provided with a handle 330, so that the front fixing component 3 is convenient to mount and dismount.
The master control unit 2 includes a vacuum system 250, an ultrasonic bubble sensor 210, a peristaltic pump I221, a purification column 240, a radioactivity probe 230, and a peristaltic pump II 222.
And carrying out air tightness detection before purification operation. Controlling the electromagnetic valve, enabling the pipe pressing cylinder to stretch forwards, enabling all the purification pipelines to be abutted against the boss 310, and closing all the valves; and starting the vacuum pump 253, displaying the set vacuum degree by the pressure sensing device, sequentially opening/closing the valves of the channels, testing the air tightness of each channel, and carrying out subsequent purification operation if the air tightness is good.
The ultrasonic bubble sensor 210 is arranged in the main control unit 2, displays whether liquid flows through the ultrasonic bubble sensor through a surface sensor indicator lamp, and transmits the result to the control terminal.
Peristaltic pumps I221 and II 222 are respectively arranged on two sides of the main control unit 2, and rotate and extrude the purification pipeline to convey fluid, so that the fluid can rotate positively and reversely, and fluid conveying and waste liquid suck-back operation are completed.
The purification column 240 is connected to a purification pipeline at the outlet end of the peristaltic pump I221, a radioactive probe 230 is arranged in the purification column 240 corresponding to the main control unit 2, when radioactive substances flow through the purification column 240, the radioactive probes 230 automatically sense, and data detected by the radioactive probe 230 judge whether the metal nuclides in the purification column are completely adsorbed or eluted.
The containers R of the material part 4 and the receiving part 5 may be target water bottles, rinse bottles, waste bottles, product bottles, etc. for accommodating various media during the operation. The end of the purification pipeline is connected with the container of the receiving part, and the container is fixed on the movable bottle seat. The outlets of the waste liquid bottles are respectively connected with an acid removal column 510 for removing the waste gas generated in the purification process. The product bottle outlet is connected with a peristaltic pump II 222, and the product is conveyed to the transfer part through the peristaltic pump II 222.
The multifunctional purification module for the solid target nuclide also comprises a control terminal, wherein the control terminal is connected with the synthesis unit 1 and the main control unit 2 and is used for automatically controlling the purification operation of the metal nuclide. By setting interface software, the air cylinder pressure pipe valves V02611-V05614, V15615-V18618, V20619, the stop valve V21620, the vacuum pump 253 and the peristaltic pumps I221 and II 222 can be controlled to be opened and closed, and the negative pressure sensor 252, the ultrasonic bubble sensor 210, the radioactive probe 230 and the like are monitored to control the transmission and the reception of the liquid in the purification pipeline and the container R.
The purification of the metal nuclide by the solid target nuclide multifunctional purification module is described in the following with reference to example 1, and fig. 3 and 4. In FIG. 4, cylinder pipe-pressing valves V02-V05, V15-V18, V20 and a stop valve V21 used in the purification process are sequentially arranged from the left to the top. The utility model discloses use same removable cardboard and same terminal program purification68Ga、64Cu and89zr, purification line consisting of path L1-L15.
Practice ofExample 168GaCl3Purification of (2)
Hereinafter, all valves and pumps are initially closed and during operation, all valves and pumps are closed except for the open state described. The following processes are all programmed automatic operation. The target water bottle R1 is HCl target solution (10M,6mL), the leacheate bottles R2 and R3 are both concentrated hydrochloric acid (10M,8mL), and the R4 is diluted hydrochloric acid (0.1M,2.5 mL).
1. Air tightness detection
First, the air tightness of the purification pipeline flow path is detected. Opening valves V20619 and V21620, opening vacuum pump 253, and vacuumizing the interior of the pipeline; opening V02611, relieving pressure inside the pipeline; closing V02611 for pressure maintaining, opening V03612 for pressure relief; and sequentially and respectively opening the rest valves V04613, V05614, V15615, V16616, V17617 and V18618, sequentially maintaining pressure, relieving pressure and testing air tightness, and alarming if the set vacuum pressure is not reached, otherwise, indicating that the air tightness of the medium transmission part is good. After completion of the airtightness test, the valves V20619 and V21620 were closed.
2. Upper column
Unpurified accelerator produced68GaCl3Flows into the target water bottle R1411 through the passage L1; opening valves V02611 and V15615, opening peristaltic pump I221, and adding water under the action of peristaltic pump I22168GaCl3The target water enters the purification column 240 from the target water bottle R1411 through L2, L6, the ultrasonic bubble sensor 210 and the peristaltic pump I221, and the metal nuclide68GaCl3The waste liquid is absorbed by the purification column 240 and enters a waste liquid bottle R5521 through L8 and L9. The ultrasonic bubble sensor 210 senses automatically, and the control terminal observes the signal transmitted by the ultrasonic bubble sensor 210 to judge whether the target water is transmitted normally, observes the signal of the radioactive probe 230, and judges whether the purification column 240 adsorbs the metal nuclide and the amount of the adsorbed nuclide. The off-gas is absorbed by passing through the acid removal column 510 via L13. V02611, V15615 were closed.
3. Cleaning and purifying column (including reflux program)
The purpose is to elute impurities. Opening V03612 and V16616, allowing 10M concentrated hydrochloric acid to enter the purification column 240 from R2412 through L3, L6, the ultrasonic bubble sensor 210 and the peristaltic pump I221 under the action of the peristaltic pump I221 to elute impurities, and allowing the washing waste liquid to enter a waste liquid bottle R6522 through L8 and L10; starting a reflux program, reversely rotating the peristaltic pump I221 for a plurality of seconds, and then normally rotating the peristaltic pump I to pump back the waste liquid bottle R6522; closing V03612 and V16616, opening V04613 and V17617, allowing 10M concentrated hydrochloric acid to pass through L4 and L6, the ultrasonic bubble sensor 210 and the peristaltic pump I221 from R3413 to enter the purification column 240 under the action of the peristaltic pump I221, and allowing the washing waste liquid to pass through L8 and L11 to enter a waste liquid bottle R7523; starting a reflux program, reversely rotating the peristaltic pump I221 for a plurality of seconds, and then normally rotating the peristaltic pump I to pump back the waste liquid bottle R7523; the change in the dose of the metallic species on the purification column 240 is observed (not much) by the signal transmitted by the radioactive probe 230 near the purification column 240. Waste gas generated by the waste liquid bottles R6522 and R7523 respectively flows into the acid removing column 510 through L14 and L15. V04613 and V17617 are closed.
4. Elution product
And step four, eluting the product. Opening V05614 and V18618, allowing 0.1M dilute hydrochloric acid to pass through L5 and L6 from R4414 under the action of peristaltic pump I221, allowing the dilute hydrochloric acid to enter purification column 240 via ultrasonic bubble sensor 210 and peristaltic pump I221, and eluting on purification column 24068GaCl3Through L8 into product bottle R8524; the product in the product bottle R8524 is delivered to the transfer portion specifying device via L12 by the action of the peristaltic pump II 222. According to the signal of the radioactive probe 230, the metal nuclide on the purification column 240 is judged68GaCl3Whether or not it is completely eluted.
Example 264CuCl2Purification of (2)
The procedure of example 1 is followed except that the target solution of HCl (6M,10mL) is contained in the target water bottle R1, the concentrated HCl solution (6M,8mL) is contained in the rinse bottle R2, the concentrated HCl solution (6M,5mL) is contained in the rinse bottle R3, and the dilute HCl solution (0.1M,10mL) is contained in the rinse bottle R4.
EXAMPLE 3 oxalic acid89Purification of Zr
The procedure of example 1 was followed except that the target solution bottle R1 was HCl target solution (2M,10mL), the rinse solution bottle R2 was HCl solution (2M,10mL), the rinse solution bottle R3 was ultrapure water (10mL), and the rinse solution bottle R4 was oxalic acid solution (1M, 1 mL).
The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The multifunctional purification module for the solid target nuclide is characterized by comprising a material part, a synthesis unit, a main control unit, a front fixing assembly and a receiving part; the material part is arranged above the synthesis unit, and the synthesis unit is arranged above the main control unit; the material part, the synthesis unit, the main control unit and the receiving part are connected with each other through purification pipelines to form a fluid flow path.
2. The multifunctional purification module for solid target nuclide as claimed in claim 1, wherein the material part comprises a target water bottle and a rinse solution bottle; the leacheate is one of concentrated hydrochloric acid, dilute hydrochloric acid, oxalic acid, ultrapure water and alkali liquor.
3. The multifunctional purification module for solid target nuclide as in claim 1, wherein the receiving section comprises a waste liquid bottle, a product bottle; and the outlet of the waste liquid bottle is respectively connected with the acid removing column.
4. The multifunctional purification module for solid target nuclide as in claim 1, wherein the synthesis unit is composed of a replaceable card, a panel and a main body; hasps are respectively arranged on two sides of the main body of the synthesis unit, and a compressed air pressure regulating valve is also arranged on the outer side of the main body of the synthesis unit; an upper row of pipe pressing cylinders and a lower row of pipe pressing cylinders are distributed on the panel of the synthesis unit, each pipe pressing cylinder is connected with a compressed air pneumatic electromagnetic valve, the electromagnetic valves are integrated in the main body of the synthesis unit, and a left positioning pin and a right positioning pin are arranged on the panel; the left end and the right end of the replaceable clamping plate are respectively provided with a fixing hole with the same size as the positioning pin, and the clamping plate is provided with two rows of pressure pipe holes vertically; the cardboard is unanimous with synthetic unit panel size, detains in the locating pin through the fixed orifices and fixes to the panel, and every presses the intraductal cylinder of pressing of pipe.
5. The multifunctional purification module for solid target nuclide as in claim 1 or 4, wherein the purification pipeline is distributed on the replaceable clamping plate, the pressure pipe hole has a clamping groove structure, and the purification pipeline is embedded in the clamping groove and fixed on the clamping plate by a pipe buckle; the initial end of the purification pipeline is connected with the material part, and the tail end of the purification pipeline is connected with the receiving part.
6. The multifunctional purification module for a solid target nuclide as in claim 1 or 4, wherein two ends of the front fixing component are provided with catching grooves for being fastened to the panel of the synthesis unit by snap-action with two sides of the synthesis unit body; an upper row of bosses and a lower row of bosses are arranged on the inner side of the front fixing assembly, the diameters of the bosses and the pipe pressing holes are consistent, when the front fixing assembly is fixed on a panel of a synthesis unit, the bosses are positioned in the pipe pressing holes, and the bosses and the pipe pressing cylinders are pressed to form cylinder pipe pressing valves; the handle is installed to preceding fixed subassembly outside.
7. The multifunctional purification module for solid target nuclide as in claim 1, wherein the master control unit comprises an ultrasonic bubble sensor, a peristaltic pump I, a radioactive probe, a purification column, a peristaltic pump II and a vacuum system; a purification pipeline connected with the inlet end of the peristaltic pump I flows through the upper part of the ultrasonic bubble sensor; the inlet end of the peristaltic pump I is respectively connected with a target water bottle and an eluent bottle of the material part, and the outlet end of the peristaltic pump I is connected with a purification column; the outlet end of the purification column is respectively connected with the waste liquid bottle and the product bottle of the receiving part; the radioactive probe is positioned in the main control unit and is opposite to the fixed position of the purification column; the inlet end of the peristaltic pump II is connected with the product bottle, and the outlet end of the peristaltic pump II is connected with the transfer part.
8. The multifunctional purification module for solid target nuclide as in claim 7, wherein the vacuum system is in communication with the entire purification line; the vacuum system consists of a vacuum pump, a stop valve, a negative pressure sensor and a vacuum buffer bottle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122666809.6U CN216419295U (en) | 2021-11-02 | 2021-11-02 | Multifunctional purification module for solid target nuclide |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122666809.6U CN216419295U (en) | 2021-11-02 | 2021-11-02 | Multifunctional purification module for solid target nuclide |
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| CN216419295U true CN216419295U (en) | 2022-05-03 |
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| CN202122666809.6U Active CN216419295U (en) | 2021-11-02 | 2021-11-02 | Multifunctional purification module for solid target nuclide |
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