CN204667154U - The automatic production control equipment of a kind of Levosimendan freeze-dried powder - Google Patents
The automatic production control equipment of a kind of Levosimendan freeze-dried powder Download PDFInfo
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- CN204667154U CN204667154U CN201520343724.6U CN201520343724U CN204667154U CN 204667154 U CN204667154 U CN 204667154U CN 201520343724 U CN201520343724 U CN 201520343724U CN 204667154 U CN204667154 U CN 204667154U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model provides a kind of Levosimendan freeze-dried powder automatic production control equipment, it comprises control device, automatic feeding, stirring apparatus, filter plant, bottling plant and freeze drying equipment, the discharging opening of automatic feeding connects the charging aperture of stirring apparatus, the discharging opening of stirring apparatus connects the charging aperture of filter plant by the first pipeline, concentration sensor is arranged in stirring apparatus; After filter plant filters Levosimendan solutions, enter bottling plant and solution is loaded in freeze drying bottle, after freeze drying equipment drying, obtain Levosimendan freeze-dried powder.The utility model adopts the work of Single-chip Controlling automatic feeding, stirring apparatus and freeze drying equipment, achieve the automatic control that Levosimendan freeze-dried powder makes, solve a large amount of human and material resources of waste and the high defect of production cost that existing Levosimendan production equipment exists, improve the production efficiency of Levosimendan freeze-dried powder, reduce financial cost, there is good economic benefit.
Description
Technical field
The utility model relates to the automatic production control field of medicine, is specifically related to the automatic production control equipment of a kind of Levosimendan freeze-dried powder.
Background technology
Levosimendan is clinically for the treatment of heart failure, and it is the exploitation of Ou Liang company of Finland, and goes on the market in Sweden first in 2000.Levosimendan listing type is freeze-dried powder and injection water injection, when treating, because Patients with Cardiac Failure is in a bad way, especially when patient is in automatism or intestinal absorption ability is weak, preferably adopt parenterai administration mode, this just needs Levosimendan to be mixed with injection or to use front solid composite that can be water-soluble.
The preparation technology of levosimendan composition is divided into two large steps usually, first step is the Levosimendan intermediate (compound) preparing stable form, and second step is that Levosimendan intermediate is formed freeze dried powder or parenteral solution together with excipient, surfactant etc.
Levosimendan is insoluble in water, and be easy to produce precipitation in aqueous, and be easy to chemical degradation in the solution, and chemical precipitation is breakneck concerning intravenous injection, therefore need beta cyclodextrin and derivant thereof to be dissolved in water for injection when making Levosimendan freeze-dried powder, add Levosimendan and phosphatide and add other auxiliary material and make, in manufacturing process, various raw material is needed to be uniformly mixed, obtain Levosimendan solutions, and this Levosimendan solutions is carried out freeze drying, obtain Levosimendan freeze-dried powder.
The preparation process of usual Levosimendan freeze-dried powder first will through stirring, the then hand sampling inspection extent of reaction, to be tested to sufficient reacting time, enter next step and filter, and carry out cool drying after filtration.The inclined miniaturization of these equipment and independent, advantage is flexible, and shortcoming is that production efficiency is low.Especially need hand sampling to check the extent of reaction, sample time often depends on micro-judgment to a great extent.And chemical combination material from stir storehouse to filtering cabin and warehouse for drying transfer process also need artificial intervention, waste a large amount of manpower and time cost, production efficiency is low.
Utility model content
The utility model is in order to a large amount of human and material resources of waste that solve the above-mentioned existing Levosimendan production equipment mentioned and exist and the high defect of production cost, and providing a kind of can carry out to the production of Levosimendan freeze-dried powder the automatic production control equipment of Levosimendan freeze-dried powder automatically produced.
Concrete, the utility model provides a kind of Levosimendan freeze-dried powder automatic production control equipment, and it comprises control device, automatic feeding, stirring apparatus, filter plant, bottling plant and freeze drying equipment;
The discharging opening of described automatic feeding connects the charging aperture of described stirring apparatus, and the discharging opening of described stirring apparatus connects the charging aperture of described filter plant by the first pipeline, and the discharging opening of described filter plant connects described bottling plant by second pipe;
The junction of the discharging opening of described first pipeline and described stirring apparatus is provided with solenoid valve;
Described control device comprises housing, is arranged on the master control board of described enclosure interior and is arranged on the guidance panel of described outside, and described master control board is connected by CAN with described guidance panel;
Described stirring apparatus comprises motor, stirring rod, motor-drive circuit and concentration sensor, the output terminal of described master control board connects the input end of described motor-drive circuit, the output terminal of described motor-drive circuit connects described motor, and described stirring rod is set on the output shaft of described motor;
The output terminal of described concentration sensor connects the input end of described master control board by CAN, for detecting the concentration of described Levosimendan solutions, when concentration reaches requirement, described concentration sensor is by the extremely described master control board of this information feed back, the power supply of described motor-drive circuit is cut off in described master control board, and open described solenoid valve, described Levosimendan solutions is sent to described filter plant, after described filter plant filters Levosimendan solutions, described bottling plant is delivered to through described second pipe, described bottling plant is used for Levosimendan solutions to load in freeze drying bottle, and
Described freeze drying equipment comprises energy supply control module, body feed tank, water catching bin, refrigeration unit, well heater and vacuum pump, described body feed tank and described water catching bin communicate, described water catching bin is connected with vacuum pump, refrigeration unit and well heater are arranged on body feed tank outside, described energy supply control module is to described refrigeration unit, described well heater and described vacuum pump control, in body feed tank, refrigerator pipes and heating tube are set simultaneously, water catching bin is arranged on bottom body feed tank, the input end of energy supply control module connects an output terminal of described master control board by CAN, described freeze drying equipment is used for carrying out freeze drying to the Levosimendan solutions in freeze drying bottle, obtain Levosimendan freeze-dried powder.
Preferably, described master control board comprises single-chip microcomputer and clock chip, and described single-chip microcomputer is connected by CAN with described clock chip.
Preferably, described motor-drive circuit comprises photoelectric coupled circuit and ghyristor circuit, described photoelectric coupled circuit is used for providing light-coupled isolation, described ghyristor circuit is used for carrying out break-make to described motor-drive circuit, an output terminal of described single-chip microcomputer connects the input end of described photoelectric coupled circuit, and the output terminal of described photoelectric coupled circuit connects the input end of described ghyristor circuit.
Preferably, described guidance panel can be used in the reaction time arranging described stirring apparatus.
Preferably, described filter plant is filter funnel, and the reticular density of described funnel is 50-100 order.
Preferably, described filter plant is provided with ultrasonic vibration device, for accelerating the filtration of Levosimendan solutions.
Preferably, the appropriate location at the charging aperture place of described filter plant is provided with membrane pump, for pumping Levosimendan solutions to described filter plant.
Preferably, the liquid flowing outlet place of described stirring apparatus is provided with liquid-detecting, and described liquid-detecting output terminal connects the input end of described single-chip microcomputer by CAN, and an output terminal of described single-chip microcomputer connects described automatic feeding.
Preferably, after described liquid-detecting detects that the liquid of described stirring apparatus flows out completely, described single-chip microcomputer is for cutting out described solenoid valve.
Preferably, the described refrigerator pipes in described body feed tank is arranged on body feed tank inner top, and described heating tube is arranged on body feed tank inner bottom part.
Advantage of the present utility model is as described below:
The utility model adopts the work of Single-chip Controlling automatic feeding, stirring apparatus and freeze drying equipment, achieve the automatic control that Levosimendan freeze-dried powder makes, solve a large amount of human and material resources of waste and the high defect of production cost that existing Levosimendan production equipment exists, improve the production efficiency of Levosimendan freeze-dried powder, reduce financial cost, there is good economic benefit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of stirring apparatus of the present utility model;
Fig. 3 is the structural representation of freeze drying equipment of the present utility model; And
Fig. 4 is structural schematic block diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, structure and working principle of the present utility model is further explained:
The utility model provides a kind of Levosimendan freeze-dried powder automatic production control equipment, and as shown in Figure 1-Figure 3, it comprises control device 1, automatic feeding 2, stirring apparatus 3, concentration sensor 4, filter plant 5 and freeze drying equipment 6.Automatic feeding 2 is for by chemical raw material, solvent and catalyzer are transported to stirring apparatus 3, stirring apparatus 3 pairs of chemical raw materials, solvent and catalyzer fully stir, chemical raw material and catalyzer is made fully to be dissolved in solvent and fully reaction, the extent of reaction of concentration sensor 4 pairs of chemical raw materials and catalyzer detects, when the extent of reaction satisfies the demands, concentration sensor 4 initiates a message to control device 1, control device 1 controls stirring apparatus 3 and quits work, and equipment 5 enters bottling plant 200 after filtering after filtration, Levosimendan solutions is loaded in freeze drying bottle, by mechanical arm (not shown), freeze drying bottle is put into freeze drying equipment 6 cool drying afterwards, obtain Levosimendan freeze-dried powder.
The discharging opening of automatic feeding 2 connects the charging aperture of stirring apparatus 3, the discharging opening 32 of stirring apparatus 3 connects the charging aperture 51 of filter plant 5 by the first pipeline 7, the discharging opening 52 of filter plant 5 connects bottling plant 200 by second pipe 8, concentration sensor 4 is arranged in stirring apparatus 3, for detecting the extent of reaction of chemical raw material and catalyzer.First pipeline 7 is provided with solenoid valve 9 with the junction of the discharging opening 31 of stirring apparatus 3, and is provided with membrane pump, for pumping Levosimendan solutions to filter plant 5 in the appropriate location, charging aperture place of filter plant 5.
Control device 1 comprises housing 11, is arranged on the master control board 12 of housing 11 inside and is arranged on the guidance panel 13 of housing 11 outside, and master control board 12 is connected by CAN 100 with guidance panel 13, and user can carry out control operation by guidance panel 13.
As shown in Figures 2 and 4, stirring apparatus 3 comprises motor 32, stirring rod 33, concentration sensor 4 and motor-drive circuit 34, the output terminal of master control board 12 connects the input end of motor-drive circuit 34, the output terminal of motor-drive circuit 34 connects motor 32, stirring rod 33 is set on the output shaft of motor 32, and master control board 12 is for controlling the reaction time of stirring apparatus 3 Raw and catalyzer.Stirring rod 33 is provided with stirring vane 331, for carrying out stirring reaction to raw material and catalyzer.Stirring apparatus 3 is also provided with circulating line 35 and ebullator 36, for carrying out circulation stirring to the liquid of stirring apparatus 3 inside.
The output terminal of concentration sensor 4 connects the input end of master control board 12 by CAN 100, for detecting the extent of reaction of described raw material and catalyzer, when the extent of reaction reaches requirement, concentration sensor 4 by this information feed back to master control board 12 time, the power supply of motor-drive circuit 34 is cut off in master control board 12, and open solenoid valve 9 and membrane pump, liquid is delivered to the charging aperture 51 of filter plant 5 by the first pipeline 7.
Filter plant is provided with ultrasonic vibration device 512, for accelerating the filtration of Levosimendan solutions.After filter plant 5 pairs of Levosimendan solutions filter, be delivered to bottling plant through second pipe 8, bottling plant is used for Levosimendan solutions to load in freeze drying bottle.
As shown in Figure 3, freeze drying equipment 6 comprises energy supply control module 61 and freeze drying body feed tank 62, bottom in freeze drying body feed tank 62 is provided with heat-conducting oil heating pipe 63, top in body feed tank 62 is provided with refrigerator pipes 64, McLeod vacuum gauge 65 is provided with in the top exterior walls of body feed tank 62, be provided with vent valve 66 at the top of body feed tank 62, multiple material frame 67 is set in body feed tank 62.Be connected with the water catching bin 68 communicated bottom body feed tank 62, water catching bin 68 is connected with vacuum pump 69, is provided with refrigerator pipes 641 in water catching bin 68, and the bottom of water catching bin 68 is provided with outlet valve 610.The bottom of body feed tank 62 arranges support, and water catching bin 68 can be arranged in bottom body feed tank 62 in the mode hung or support.
Refrigerator pipes 64 and refrigerator pipes 641 are connected to refrigeration unit 611 by refrigerating circuit, thus realize freezing to body feed tank 62 and water catching bin 68 under the control of energy supply control module 61.Refrigeration unit comprises refrigeration machine 612, condenser 613 and the fluid reservoir 614 for reclaiming liquid coolant, and condenser 613 is connected with fluid reservoir 614 and refrigeration machine 612 respectively.The pipeline that refrigerator pipes 64 is connected with refrigeration unit 611 is provided with the valve that can individually control, and is the main control valve 615 be connected with refrigeration machine 612 and the reverse flow valve 616 be connected with fluid reservoir 614 respectively; The pipeline that refrigerator pipes 641 is connected with refrigeration unit 611 is provided with the valve that can individually control, and is the main control valve 617 be connected with refrigeration machine 612 and the reverse flow valve 618 be connected with fluid reservoir 614 respectively.
Refrigeration unit 611 can carry out refrigeration control to refrigerator pipes 64 and refrigerator pipes 641 respectively under the control of energy supply control module 61.When needing to carry out freezing to the material in body feed tank 62, opening main control valve 615 and reverse flow valve 616, closing main control valve 617 and reverse flow valve 618 simultaneously, only start refrigerator pipes 64 and freeze.When carrying out heat drying to the material in body feed tank 62, closing main control valve 615 and reverse flow valve 616, opening main control valve 617 and reverse flow valve 618 simultaneously, only start refrigerator pipes 641 pairs of water catching bins 68 and freeze.Refrigerant in refrigeration unit is conventional refrigerant, such as liquid nitrogen.Refrigerator pipes 64 is preferably arranged on the top of body feed tank 62, can interrogate speed like this and fully be freezed in whole casing by convection current in body feed tank.
Heat-conducting oil heating pipe 63 is connected to hotline heater 620 by pipeline, and hotline heater 620 heats body feed tank 62 under the control of energy supply control module 61.It is outside that hotline heater 63 is arranged on body feed tank 62.Heat-conducting oil heating pipe 63 is preferably arranged on body feed tank bottom, fully can heat like this in body feed tank readily through convection current in whole casing, effectively can avoid local overheating or excessively cool.
Preferably, master control board 12 comprises single-chip microcomputer and clock chip, and single-chip microcomputer is connected by CAN with clock chip.
Preferably, as shown in Figure 4, motor-drive circuit 34 comprises photoelectric coupled circuit and ghyristor circuit, photoelectric coupled circuit is used for providing light-coupled isolation, ghyristor circuit is used for carrying out break-make to motor-drive circuit 34, an output terminal of single-chip microcomputer connects the input end of photoelectric coupled circuit, and the output terminal of photoelectric coupled circuit connects the input end of ghyristor circuit.
Guidance panel 12 can be used in the reaction time arranging stirring apparatus 3, and the reaction time is relevant with raw material injected volume, and general control was advisable at 30-40 minute.
Filter plant 5 is filter funnel, and the reticular density of funnel is 50-100 order.Equipment 5 enters bottling plant 200 after filtering after filtration, and Levosimendan solutions loads in freeze drying bottle by bottling plant 200, and after bottling, freeze drying bottle is put into freeze drying equipment 6 and carried out drying by mechanical arm, obtains Levosimendan freeze-dried powder.
The liquid flowing outlet place of stirring apparatus 3 is provided with liquid-detecting 300, and liquid-detecting 300 output terminal connects the input end of single-chip microcomputer by CAN, and an output terminal of single-chip microcomputer connects automatic feeding 2.
After liquid-detecting 300 detects that the liquid of stirring apparatus 3 flows out completely, single-chip microcomputer shut electromagnetic valve, the freeze drying bottle after all bottlings is after in freeze drying equipment, drying completes, and Single-chip Controlling automatic feeding 2 is stirring apparatus 3 feeding.Below principle of work of the present utility model is further explained:
Automatic feeding 2 is dissolved in beta cyclodextrin in water for injection and derivant (solvent) thereof respectively by specified amount by automatic feeding 2, stirring apparatus 3 put into by other auxiliary materials such as Levosimendan intermediate and phosphatide, stirring apparatus 3 pairs of Levosimendan intermediates, phosphatide and solvent fully stir, concentration sensor 4 pairs of Levosimendan concentration detect, when satisfying the demands, concentration sensor 4 initiates a message to control device 1, Single-chip Controlling motor-drive circuit 34 quits work, open solenoid valve 9, and equipment 5 enters bottling plant 200 after filtering after filtration, Levosimendan solutions loads in freeze drying bottle by bottling plant 200, after bottling, freeze drying bottle is put into freeze drying equipment 6 and is carried out drying by mechanical arm.
Body feed tank 62 put into by material, and energy supply control module 61 sends instruction to refrigeration unit 16 and opens main control valve 615 and reverse flow valve 617, and refrigeration unit 611 starts, and is undertaken freezing, chilling temperature-30 DEG C to-40 DEG C by refrigerator pipes 64 pairs of materials.Maintain chilling temperature a period of time, make material contained humidity be discharged to shallow freezing and form crystal.
Then, refrigeration unit 611 quits work, and energy supply control module 61 sends instruction to vacuum pump 69, and vacuum pump 69 starts, and vacuumizes water catching bin 68 and body feed tank 62.Like this, the vacuum pump 69 aerial moisture that volatilized by material is taken away.
Then, energy supply control module 61 sends instruction to heat-conducting oil heating 620, and hotline heater 620 starts, and is heated by heat-conducting oil heating pipe 620 pairs of body feed tanks 62.Material is heated in body feed tank 62, and crystal distils, and produces water vapour.Water vapour enters water catching bin 68 under the swabbing action of vacuum pump 69.
Meanwhile, energy supply control module 61 sends instruction to refrigeration unit 611 and opens main control valve 616 and reverse flow valve 617, and refrigeration unit 611 starts, and is freezed by refrigerator pipes 641 pairs of water catching bins 68.Under the swabbing action of vacuum pump 69, enter a part of water vapour precooling frosting of water catching bin 68, another part water vapour is directly extracted out by vacuum pump 69.Thus the material in body feed tank 62 is able to abundant drying.
After liquid-detecting 300 detects that the liquid of stirring apparatus 3 flows out completely, Single-chip Controlling automatic feeding 2 is stirring apparatus 3 feeding.
Advantage of the present utility model is as described below:
The utility model adopts the work of Single-chip Controlling automatic feeding 2, stirring apparatus 3 and freeze drying equipment 6, achieve the automatic control that Levosimendan freeze-dried powder makes, solve a large amount of human and material resources of waste and the high defect of production cost that existing Levosimendan production equipment exists, improve the production efficiency of Levosimendan freeze-dried powder, reduce financial cost, there is good economic benefit.
Last it is noted that above-described each embodiment is only for illustration of the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in previous embodiment, or to wherein partly or entirely technical characteristic carry out equivalent replacement; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (10)
1. the automatic production control equipment of Levosimendan freeze-dried powder, it comprises control device, automatic feeding, stirring apparatus, filter plant, bottling plant and freeze drying equipment; It is characterized in that:
The discharging opening of described automatic feeding connects the charging aperture of described stirring apparatus, and the discharging opening of described stirring apparatus connects the charging aperture of described filter plant by the first pipeline, and the discharging opening of described filter plant connects described bottling plant by second pipe;
The junction of the discharging opening of described first pipeline and described stirring apparatus is provided with solenoid valve;
Described control device comprises housing, is arranged on the master control board of described enclosure interior and is arranged on the guidance panel of described outside, and described master control board is connected by CAN with described guidance panel;
Described stirring apparatus comprises motor, stirring rod, motor-drive circuit and concentration sensor, the output terminal of described master control board connects the input end of described motor-drive circuit, the output terminal of described motor-drive circuit connects described motor, and described stirring rod is set on the output shaft of described motor;
The output terminal of described concentration sensor connects the input end of described master control board by CAN, for detecting the concentration of described Levosimendan solutions, when concentration reaches requirement, described concentration sensor is by the extremely described master control board of this information feed back, the power supply of described motor-drive circuit is cut off in described master control board, and open described solenoid valve, described Levosimendan solutions is sent to described filter plant, after described filter plant filters Levosimendan solutions, described bottling plant is delivered to through described second pipe, described bottling plant is used for Levosimendan solutions to load in freeze drying bottle, and
Described freeze drying equipment comprises energy supply control module, body feed tank, water catching bin, refrigeration unit, well heater and vacuum pump, described body feed tank and described water catching bin communicate, described water catching bin is connected with vacuum pump, refrigeration unit and well heater are arranged on body feed tank outside, described energy supply control module is to described refrigeration unit, described well heater and described vacuum pump control, in body feed tank, refrigerator pipes and heating tube are set simultaneously, water catching bin is arranged on bottom body feed tank, the input end of energy supply control module connects an output terminal of described master control board by CAN, described freeze drying equipment is used for carrying out freeze drying to the Levosimendan solutions in freeze drying bottle, obtain Levosimendan freeze-dried powder.
2. the automatic production control equipment of Levosimendan freeze-dried powder according to claim 1, it is characterized in that: described master control board comprises single-chip microcomputer and clock chip, described single-chip microcomputer is connected by CAN with described clock chip.
3. the automatic production control equipment of Levosimendan freeze-dried powder according to claim 2, it is characterized in that: described motor-drive circuit comprises photoelectric coupled circuit and ghyristor circuit, described photoelectric coupled circuit is used for providing light-coupled isolation, described ghyristor circuit is used for carrying out break-make to described motor-drive circuit, an output terminal of described single-chip microcomputer connects the input end of described photoelectric coupled circuit, and the output terminal of described photoelectric coupled circuit connects the input end of described ghyristor circuit.
4. the automatic production control equipment of Levosimendan freeze-dried powder according to claim 1, is characterized in that: described guidance panel can be used in arranging the reaction time of described stirring apparatus.
5. the automatic production control equipment of Levosimendan freeze-dried powder according to claim 1, is characterized in that: described filter plant is filter funnel, the reticular density of described funnel is 50-100 order.
6. the automatic production control equipment of Levosimendan freeze-dried powder according to claim 5, is characterized in that: described filter plant is provided with ultrasonic vibration device, for accelerating the filtration of Levosimendan solutions.
7. the automatic production control equipment of Levosimendan freeze-dried powder according to claim 5, is characterized in that: the appropriate location at the charging aperture place of described filter plant is provided with membrane pump, for pumping Levosimendan solutions to described filter plant.
8. the automatic production control equipment of Levosimendan freeze-dried powder according to claim 3, it is characterized in that: the liquid flowing outlet place of described stirring apparatus is provided with liquid-detecting, described liquid-detecting output terminal connects the input end of described single-chip microcomputer by CAN, an output terminal of described single-chip microcomputer connects described automatic feeding.
9. the automatic production control equipment of Levosimendan freeze-dried powder according to claim 8, it is characterized in that: after described liquid-detecting detects that the liquid of described stirring apparatus flows out completely, described single-chip microcomputer is for cutting out described solenoid valve.
10. the automatic production control equipment of Levosimendan freeze-dried powder according to claim 1, is characterized in that: the described refrigerator pipes in described body feed tank is arranged on body feed tank inner top, and described heating tube is arranged on body feed tank inner bottom part.
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| CN201520343724.6U CN204667154U (en) | 2015-05-25 | 2015-05-25 | The automatic production control equipment of a kind of Levosimendan freeze-dried powder |
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| CN201520343724.6U CN204667154U (en) | 2015-05-25 | 2015-05-25 | The automatic production control equipment of a kind of Levosimendan freeze-dried powder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112535631A (en) * | 2020-11-11 | 2021-03-23 | 河南泓医药业有限公司 | Production device and production method of gecko powder (freeze-dried) |
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2015
- 2015-05-25 CN CN201520343724.6U patent/CN204667154U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112535631A (en) * | 2020-11-11 | 2021-03-23 | 河南泓医药业有限公司 | Production device and production method of gecko powder (freeze-dried) |
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