Medicine filling device with sterile filtering structure

Abstract

The utility model relates to the technical field of medicine filling devices, in particular to a medicine filling device with a sterile filtering structure, which comprises a storage tank, the liquid inlet end of the storage tank is connected with a first filter membrane filter through a conveying pipe, the liquid inlet end of the first filter membrane filter is fixedly provided with a liquid inlet pipe, and the liquid outlet end of the storage tank is connected with a conveying pump through a suction pipe. The liquid outlet end of the conveying pump is connected with a second filter membrane filter through an output pipe, an infusion pipe is fixedly installed at the liquid outlet end of the second filter membrane filter, a valve is fixedly installed on an end pipe body of the infusion pipe, a filling head is fixedly installed at the tail end of the infusion pipe, a threaded pipe is fixedly installed at the tail end of the filling head, and a microporous filter is arranged on the threaded pipe. A filter membrane is fixedly mounted on the inner wall of the microporous filter, a liquid outlet pipe is fixedly mounted at the liquid outlet end of the microporous filter, a stirring motor is fixedly mounted in the center of the top cover, and stirring blades are fixedly mounted on a stirring shaft. The sterile infusion device facilitates sterile infusion operation and is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of medicine fillers, in particular to a medicine filler with a sterile filtering structure. Background Art

[0002] In the field of pharmaceutical manufacturing, aseptic filling of drugs is a key link in ensuring the quality and safety of drugs. With the continuous advancement of modern medical technology and the increasing requirements of patients for drug quality, more stringent standards have been put forward for aseptic control in the drug filling process. Traditional drug filling methods are often difficult to completely avoid microbial contamination. Especially during the filling process, if the environment is not properly controlled or there are defects in the equipment design, it is very easy to cause the drug to be contaminated, which in turn affects its efficacy and safety.

[0003] In recent years, the pharmaceutical industry has been continuously exploring and developing new drug filling technologies. Among them, drug fillers with sterile filtration structures have emerged. This type of filler, by integrating an efficient sterile filtration system, can effectively intercept and remove microorganisms, particles and other impurities in the drug solution during the filling process, thereby ensuring that the filled drug meets the sterility standards.

[0004] However, although this type of drug filling device has an internal filtering structure that can achieve a filtering effect, after one filling is completed, if the interval between the next filling and the next filling is long, it is easy for bacteria to grow in the filling head. In addition, this type of filling head lacks a portable and replaceable filter component, which is not conducive to achieving a completely sterile filtration filling effect. In view of this, we propose a drug filling device with a sterile filtration structure. Utility Model Content

[0005] The purpose of the present utility model is to provide a medicine filling device with a sterile filtration structure to solve the defects mentioned in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A medicine filler with a sterile filtration structure includes a storage tank, the liquid inlet end of the storage tank is connected to a first membrane filter through a delivery pipe, the liquid inlet end of the first membrane filter is fixedly installed with a liquid inlet pipe, the liquid outlet end of the storage tank is connected to a delivery pump through a suction pipe, the liquid outlet end of the delivery pump is connected to a second membrane filter through an output pipe, the liquid outlet end of the second membrane filter is fixedly installed with a perfusion pipe, a valve is fixedly installed on the end tube body of the perfusion pipe, a filling head is fixedly installed on the end of the perfusion pipe, a threaded pipe is fixedly installed on the end of the filling head, a microporous filter is provided on the threaded pipe, a filter membrane is fixedly installed on the inner wall of the microporous filter, the liquid outlet end of the microporous filter is fixedly installed with a liquid outlet pipe, the liquid inlet end of the microporous filter is fixedly installed with a threaded sleeve, and the threaded sleeve is threadedly connected to the threaded pipe.

[0008] Preferably, a top cover is fixedly mounted on the top surface of the storage tank, and a pressure relief valve is fixedly mounted on the top cover.

[0009] Preferably, the inner diameter of the liquid outlet pipe is 3 cm to 5 cm, and the length of the liquid outlet pipe is 10 cm to 18 cm.

[0010] Preferably, a limit plate is fixedly mounted on the tube body at the rear end portion of the threaded tube, and the end surface of the threaded sleeve abuts against the limit plate.

[0011] Preferably, a stirring motor is fixedly mounted at the center of the top cover, a vertical stirring shaft is fixedly mounted at the end of the output shaft of the stirring motor, a stirring blade is fixedly mounted on the stirring shaft, and the stirring blade is located in the storage tank.

[0012] Preferably, the liquid inlet pipe, the delivery pipe and the first membrane filter, and the output pipe, the perfusion pipe and the second membrane filter are all connected by flanges.

[0013] Preferably, the height of the storage tank is 80 cm to 120 cm, and the capacity of the storage tank is 50 L to 80 L.

[0014] Preferably, the terminal pipe opening of the pressure relief valve is arranged to face downward.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The utility model realizes the storage operation of the medicine liquid through the storage tank. In addition, the first membrane filter and the second membrane filter are provided, which can realize the filtering operation of the medicine liquid entering the storage tank and the medicine liquid flowing out of the storage tank. In addition, the replaceable microporous filter is provided, which can realize the filtering operation of the medicine liquid flowing out of the filling head. The microporous filter is replaced each time it is used, which can achieve the effect of thorough sterile filtration and filling.

[0017] 2. The utility model is provided with a stirring motor, a stirring shaft and a stirring blade, which can realize a stirring operation and avoid precipitation of the liquid medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0020] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a cross-sectional view of the microporous filter of the present invention;

[0022] Figure 5 It is a partial structural diagram of the utility model;

[0023] The meaning of each number in the figure is:

[0024] 1. Storage tank; 10. First membrane filter; 11. Liquid inlet pipe; 12. Delivery pipe; 13. Top cover; 131. Pressure relief valve; 14. Delivery pump; 141. Suction pipe; 15. Output pipe; 16. Second membrane filter; 17. Perfusion pipe; 171. Valve; 18. Filling head; 181. Limit plate; 182. Threaded pipe;

[0025] 2. Stirring motor; 20. Stirring shaft; 21. Stirring blade;

[0026] 3. Microporous filter; 30. Threaded sleeve; 31. Filter membrane; 32. Liquid outlet pipe. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 5 The utility model provides a technical solution: a medicine filling device with a sterile filtration structure, comprising a storage tank 1, a liquid inlet end of the storage tank 1 is connected to a first membrane filter 10 through a delivery pipe 12, a liquid inlet pipe 11 is fixedly installed on the liquid inlet end of the first membrane filter 10, a liquid outlet end of the storage tank 1 is connected to a delivery pump 14 through a suction pipe 141, a liquid outlet end of the delivery pump 14 is connected to a second membrane filter 16 through an output pipe 15, a liquid outlet end of the second membrane filter 16 is fixedly installed with a perfusion pipe 17, the liquid inlet pipe 11, the delivery pipe 12 and the first membrane filter 10, the output pipe 15, the perfusion pipe 17 and the second membrane filter 16 are all flange-connected, which is convenient for pipeline connection and replacement of the first membrane filter 10 and the second membrane filter 16;

[0029] Specifically, the first membrane filter 10 and the second membrane filter 16 are both fixedly installed with a filter membrane with a pore size of 0.3um~0.5um, which can filter bacteria. The first membrane filter 10 and the second membrane filter 16 are existing conventional technologies and will not be repeated here.

[0030] Specifically, a valve 171 is fixedly installed on the end tube body of the perfusion tube 17, a filling head 18 is fixedly installed on the end of the perfusion tube 17, a threaded tube 182 is fixedly installed on the end of the filling head 18, a microporous filter 3 is provided on the threaded tube 182, a filter membrane 31 is fixedly installed on the inner wall of the microporous filter 3, the pore size of the filter membrane 31 is less than 0.3um, and a liquid outlet pipe 32 is fixedly installed on the liquid outlet end of the microporous filter 3, so that further filtering operation can be performed using the microporous filter 3, and the microporous filter 3 can be replaced, which is convenient for replacement and sterilization operations according to actual conditions.

[0031] In this embodiment, a top cover 13 is fixedly installed on the top surface of the storage tank 1, and a pressure relief valve 131 is fixedly installed on the top cover 13, so that the top cover 13 can be used for dust protection operation and the pressure relief valve 131 can be used for pressure relief operation; the terminal pipe mouth of the pressure relief valve 131 is set to face downward, which has a certain effect of preventing dust from entering.

[0032] Specifically, a threaded sleeve 30 is fixedly installed on the liquid inlet end of the microporous filter 3, and the threaded sleeve 30 is threadedly connected to the threaded tube 182, which is convenient for installation, disassembly and replacement operations; a limiting disk 181 is fixedly installed on the tube body of the rear end of the threaded tube 182, and the end face of the threaded sleeve 30 is against the limiting disk 181 to realize the limiting operation.

[0033] Furthermore, a stirring motor 2 is fixedly installed at the center position of the top cover 13, and a vertically arranged stirring shaft 20 is fixedly installed at the end of the output shaft of the stirring motor 2. A stirring blade 21 is fixedly installed on the stirring shaft 20. The stirring blade 21 is located in the storage tank 1 to realize the stirring operation and avoid precipitation of the liquid medicine.

[0034] In addition, the height of the storage tank 1 is 80 cm to 120 cm, and the capacity of the storage tank 1 is 50 L to 80 L.

[0035] It is worth noting that the inner diameter of the liquid outlet pipe 32 is 3 cm to 5 cm, and the length of the liquid outlet pipe 32 is 10 cm to 18 cm, so that the liquid outlet pipe 32 can be normally inserted into the external container for filling operation.

[0036] When the medicine filling device with a sterile filtration structure of the present invention is used, the liquid inlet pipe 11 is connected to the external medicine liquid delivery pipeline. As the medicine liquid flows in, it is filtered by the first membrane filter 10 and then stored in the storage tank 1;

[0037] During filling, the unused microporous filter 3 is taken out from the sterile packaging bag, the threaded sleeve 30 is tightened on the threaded tube 182, and then the valve 171 is opened, the stirring motor 2 is connected to the external power supply and is made to work. When the stirring motor 2 is working, the output shaft thereon rotates to drive the stirring shaft 20 and the stirring blade 21 to rotate, thereby stirring the liquid medicine in the storage tank 1. In addition, the delivery pump 14 is connected to the external power supply and is made to work. When the delivery pump 14 is working, the liquid medicine in the storage tank 1 is transported outward and filtered through the second membrane filter 16 and the filter membrane 31 before being discharged outward for the filling operation.

[0038] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A drug filling device with a sterile filtration structure, comprising a storage tank (1), characterized in that: The liquid inlet end of the storage tank (1) is connected to a first membrane filter (10) via a delivery pipe (12), and a liquid inlet pipe (11) is fixedly installed on the liquid inlet end of the first membrane filter (10). The liquid outlet end of the storage tank (1) is connected to a delivery pump (14) via a suction pipe (141), and the liquid outlet end of the delivery pump (14) is connected to a second membrane filter (16) via an output pipe (15). The liquid outlet end of the second membrane filter (16) is fixedly installed with an irrigation pipe (17), and a valve is fixedly installed on the end pipe body of the irrigation pipe (17). The end of the perfusion tube (17) is fixedly mounted with a filling head (18), the end of the filling head (18) is fixedly mounted with a threaded tube (182), a microporous filter (3) is provided on the threaded tube (182), a filter membrane (31) is fixedly mounted on the inner wall of the microporous filter (3), a liquid outlet pipe (32) is fixedly mounted on the liquid outlet end of the microporous filter (3), a threaded sleeve (30) is fixedly mounted on the liquid inlet end of the microporous filter (3), and the threaded sleeve (30) is threadedly connected to the threaded tube (182).

2. The drug filling device with a sterile filtration structure according to claim 1, characterized in that: A top cover (13) is fixedly mounted on the top surface of the storage tank (1), and a pressure relief valve (131) is fixedly mounted on the top cover (13).

3. The drug filling device with a sterile filtration structure according to claim 1, characterized in that: The inner diameter of the liquid outlet pipe (32) is 3 cm to 5 cm, and the length of the liquid outlet pipe (32) is 10 cm to 18 cm.

4. The drug filling device with a sterile filtration structure according to claim 3, characterized in that: A limiting plate (181) is fixedly mounted on the rear end tube body of the threaded tube (182), and the end surface of the threaded sleeve (30) abuts against the limiting plate (181).

5. The drug filling device with a sterile filtration structure according to claim 2, characterized in that: A stirring motor (2) is fixedly mounted at the center of the top cover (13), a stirring shaft (20) arranged vertically is fixedly mounted at the end of the output shaft of the stirring motor (2), a stirring blade (21) is fixedly mounted on the stirring shaft (20), and the stirring blade (21) is located in the storage tank (1).

6. The medicine filling device with a sterile filtration structure according to claim 1, characterized in that: The liquid inlet pipe (11), the delivery pipe (12) and the first membrane filter (10), and the output pipe (15), the perfusion pipe (17) and the second membrane filter (16) are all flange-connected.

7. The drug filling device with a sterile filtration structure according to claim 1, characterized in that: The height of the storage tank (1) is 80 cm to 120 cm, and the capacity of the storage tank (1) is 50 L to 80 L.

8. The medicine filling device with a sterile filtration structure according to claim 2, characterized in that: The end pipe opening of the pressure relief valve (131) is arranged to face downward.

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