Injection preparation device

Abstract

The utility model belongs to the technical field of medicine production, and discloses an injection liquid preparation device which comprises a liquid preparation tank body, a rotating frame is arranged in the liquid preparation tank body, at least one filter cartridge used for filling raw and auxiliary material medicines is movably arranged on the rotating frame, the filter cartridge comprises a cartridge body and a cartridge cover, the cartridge body is of a net-shaped hollow cylinder structure with an opening in the upper end, and the cartridge cover is provided with an opening in the lower end. The cylinder cover is in threaded connection with the upper end of the cylinder body, a motor is arranged at the bottom of the liquid preparation tank body and connected with a rotating frame, a liquid outlet pipe is arranged on one side of the lower portion of the liquid preparation tank body, and a control valve is arranged on the liquid outlet pipe. According to the utility model, the filter cartridge is used for filling various raw and auxiliary materials required by injection liquid preparation, and particles or precipitates generated in the dissolving and liquid preparation process are automatically filtered and are retained in the filter cartridge, so that the injection liquid preparation process is effectively simplified, the production efficiency is improved, and the cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of pharmaceutical production technology, and specifically relates to an injection preparation device. Background Technology

[0002] In the production of injectable drugs, raw materials, excipients, and drugs need to be dissolved in specific solvents and then sequentially undergo processes such as filtration, filling, sterilization, light inspection, labeling, and packaging. Depending on the characteristics of the drug, aqueous or non-aqueous solvents are generally used to dissolve the raw materials, excipients, and drugs. However, some raw materials, excipients, and drugs are still difficult to dissolve completely, resulting in particles or precipitates. These require filtration to remove the particles or precipitates from the solution. Existing injectable drug preparation devices are relatively simple in function and do not have filtration capabilities, requiring the use of other filtration equipment. This process is cumbersome and increases equipment and production costs. Utility Model Content

[0003] This invention addresses the shortcomings of the prior art by providing an injection preparation device that can filter particles or precipitates generated during the dissolution and preparation process, thereby simplifying the injection preparation process, improving production efficiency, and reducing costs.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] An injectable preparation device, characterized in that: it includes a preparation tank, a rotating frame is provided inside the preparation tank, at least one filter cartridge for filling raw materials and drugs is movably mounted on the rotating frame, the filter cartridge includes a cylinder body and a cylinder cover, the cylinder body is a mesh hollow cylindrical structure with an open top, the cylinder cover is threaded to the upper end of the cylinder body, a motor is provided at the bottom of the preparation tank, the motor is connected to the rotating frame, and a liquid outlet pipe is provided on one side of the lower part of the preparation tank, with a control valve provided on the liquid outlet pipe.

[0006] Preferably, a connecting seat is provided between the rotating frame and the output shaft of the motor, the connecting seat is rotatably connected to the bottom wall of the liquid preparation tank, and the rotating frame and the connecting seat are detachably connected.

[0007] Preferably, the bottom of the rotating frame is provided with a plurality of assembly slots evenly distributed, and the top of the connecting seat is provided with a plurality of fixing protrusions that correspond one-to-one with the assembly slots.

[0008] Preferably, the rotating frame includes a frame body, the upper part of which is provided with a plurality of positioning holes, and the lower part of which is provided with positioning grooves corresponding to the positioning holes one by one. Each positioning hole and the corresponding positioning groove cooperate with each other to form a positioning cavity for placing the filter cylinder.

[0009] Preferably, the positioning cavity includes a central cavity and multiple peripheral cavities. The central cavity is one in number and is located on the same central axis as the frame. The peripheral cavities are an even number and are distributed in a circular array around the central cavity.

[0010] Preferably, an auxiliary positioning frame is provided on the outer side of the central cavity.

[0011] Preferably, the frame includes a top plate, a bottom plate, and multiple columns connected between the top plate and the bottom plate. The top plate and the bottom plate are arranged parallel to each other at intervals. The multiple columns are distributed in a circular array at the outer periphery of the top plate and the bottom plate. The positioning holes are opened on the top plate, and the positioning grooves are opened on the bottom plate.

[0012] Preferably, each of the positioning slots has a water passage hole that penetrates the bottom plate.

[0013] Preferably, at least one reinforcing rib connects each pair of adjacent columns.

[0014] Preferably, a transparent observation window is provided on one side of the liquid preparation tank.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] (1) This utility model utilizes a filter cartridge to fill the raw and auxiliary materials required for the preparation of injection solutions. During the dissolution and preparation process, particles or precipitates generated are automatically filtered and retained in the filter cartridge, which effectively simplifies the injection solution preparation process, improves production efficiency, and reduces costs.

[0017] (2) The rotating frame and the connecting seat of this utility model are detachably connected, which facilitates the cleaning of the rotating frame and the inside of the liquid mixing tank. It is easy to use, highly practical, and suitable for promotion. Attached Figure Description

[0018] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the assembly structure of the filter cartridge and the rotating frame of this utility model;

[0022] Figure 4 This is a schematic diagram of the filter cartridge structure of this utility model;

[0023] Figure 5This is a schematic diagram of the assembly structure of the base plate and connecting seat of the rotating frame of this utility model;

[0024] In the diagram: 1. Liquid preparation tank, 2. Rotating frame, 201. Positioning hole, 202. Positioning groove, 203. Top plate, 204. Bottom plate, 205. Column, 206. Water passage hole, 207. Reinforcing rib, 3. Filter cartridge, 301. Cylinder body, 302. Cylinder cover, 4. Motor, 5. Liquid outlet pipe, 6. Control valve, 7. Connecting seat, 8. Assembly groove, 9. Fixing protrusion, 10. Central cavity, 11. Outer cavity, 12. Auxiliary positioning frame, 13. Transparent observation window, 14. Top cover. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In the description of this utility model, it should be understood that the terms "middle", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] like Figure 1 and Figure 2 As shown, an injection preparation device includes a preparation tank 1, a rotating frame 2 inside the preparation tank, and at least one filter cartridge 3 for filling raw materials, excipients, and drugs movably mounted on the rotating frame. The number of filter cartridges can be freely adjusted as needed. Figure 4As shown, the filter cartridge includes a cylinder body 301 and a cover 302. The cylinder body is a hollow, mesh-like cylindrical structure with an open top. The cover is threaded to the upper end of the cylinder body for easy assembly and disassembly. After the raw materials and drugs are filled into the filter cartridge, the solvent can enter through the mesh on the cylinder body to dissolve them. Undissolved particles or precipitates remain inside the cylinder body. During use, a cylinder body with a mesh size appropriate to the needs can be selected. A motor 4 is located at the bottom of the mixing tank, which is connected to a rotating frame. The motor drives the rotating frame to rotate, accelerating the drug dissolution and mixing efficiency. A liquid outlet pipe 5 is located on one side of the lower part of the mixing tank, and a control valve 6 is installed on the liquid outlet pipe to discharge the prepared injection solution from the mixing tank. A transparent observation window 13 is located on one side of the mixing tank for easy observation of the internal condition of the mixing tank. A top cover 14 is hinged to the top of the mixing tank to ensure the cleanliness of the drug during the mixing process.

[0029] To facilitate the disassembly and assembly of the rotating frame and the motor output shaft, and the cleaning of the liquid preparation tank and its components, such as Figure 5 As shown, a connecting seat 7 is provided between the rotating frame and the output shaft of the motor. The connecting seat is rotatably connected to the bottom wall of the liquid mixing tank. The rotating frame and the connecting seat are detachably connected. Multiple assembly slots 8 are evenly provided at the bottom of the rotating frame. Multiple fixing protrusions 9 are provided at the top of the connecting seat and are connected to the assembly slots one by one. During installation, the fixing protrusions are simply inserted into the assembly slots of the rotating frame. The operation is simple and convenient.

[0030] like Figure 2 and Figure 3As shown, the rotating frame includes a frame body. The upper part of the frame body is provided with multiple positioning holes 201, and the lower part of the frame body is provided with positioning grooves 202 corresponding to the positioning holes. Each positioning hole and the corresponding positioning groove cooperate to form a positioning cavity for placing the filter cartridge. The distance between the positioning hole and the positioning groove is less than the height of the filter cartridge. The positioning cavity includes a central cavity 10 and multiple peripheral cavities 11. There is one central cavity, which is located on the same central axis as the frame body. The number of peripheral cavities is even and they are distributed in a circular array around the outer periphery of the central cavity. In actual use, the corresponding number and position of positioning cavities can be selected according to the type of raw materials and drugs to adjust the stability of the rotating frame that carries the filter cartridges filled with various raw materials and drugs. When there is only one type of raw material or drug, it can be placed in the central cavity. An auxiliary positioning frame 12 is provided on the outside of the central cavity to ensure the stability of the filter cartridge during rotation. The frame includes a top plate 203, a bottom plate 204, and multiple columns 205 connecting the top plate and the bottom plate. The top plate and the bottom plate are arranged parallel to each other at intervals. The multiple columns are distributed in a circumferential array at the outer periphery of the top plate and the bottom plate. Positioning holes are opened on the top plate and positioning grooves are opened on the bottom plate. Each positioning groove has a water passage hole 206 that penetrates the bottom plate at the bottom to facilitate the passage of solvent and improve the dissolution efficiency. At least one reinforcing rib 207 is connected between each two adjacent columns, which can improve the stability of the connection structure between the top plate and the bottom plate and improve the stability of the filter cylinder in the outer cavity, preventing it from detaching from the positioning groove due to centrifugal force during rotation.

[0031] The method of using this utility model is as follows:

[0032] like Figures 1 to 5 As shown, before preparing the injection solution, each raw material and excipient is weighed and filled into each filter cartridge 3. Then, based on the weight and quantity of each filter cartridge 3, a suitable positioning cavity is selected to ensure the overall balance and stability of the rotating frame 2. The solvent used for solution preparation is added to the preparation tank 1, and then the motor 4 is started to drive the rotating frame 2 to rotate. The added solvent comes into contact with each drug to dissolve it. The dissolved solution can freely pass through the mesh of the filter cartridge 3, while undissolved particles or precipitates remain inside the filter cartridge 3. After the solution preparation is completed, the control valve 6 is opened to drain the solution from the preparation tank 1, and the filter cartridges 3 are removed to clean the particles or precipitates inside. When it is necessary to clean the inside of the preparation tank 1, the rotating frame 2 can be removed from the connecting seat for cleaning.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all changes falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

Claims

1. An injection preparation device, characterized in that: The device includes a liquid preparation tank, inside which is a rotating frame. At least one filter cartridge for filling raw materials and drugs is movably mounted on the rotating frame. The filter cartridge includes a body and a cover. The body is a mesh-like hollow cylindrical structure with an open top. The cover is threaded to the upper end of the body. A motor is located at the bottom of the liquid preparation tank and connected to the rotating frame. A liquid outlet pipe is located on one side of the lower part of the liquid preparation tank, and a control valve is installed on the liquid outlet pipe.

2. The injection preparation device as described in claim 1, characterized in that: A connecting seat is provided between the rotating frame and the output shaft of the motor. The connecting seat is rotatably connected to the bottom wall of the liquid preparation tank. The rotating frame and the connecting seat are detachably connected.

3. The injection preparation device as described in claim 2, characterized in that: The bottom of the rotating frame is evenly provided with multiple assembly slots, and the top of the connecting seat is provided with multiple fixing protrusions that correspond one-to-one with the assembly slots.

4. The injection preparation device as described in claim 1, characterized in that: The rotating frame includes a frame body, the upper part of which is provided with a plurality of positioning holes, and the lower part of which is provided with positioning grooves corresponding to the positioning holes one by one. Each positioning hole and the corresponding positioning groove cooperate with each other to form a positioning cavity for placing the filter cylinder.

5. The injection preparation device as described in claim 4, characterized in that: The positioning cavity includes a central cavity and multiple peripheral cavities. There is one central cavity, which is located on the same central axis as the frame. The number of peripheral cavities is even, and they are distributed in a circular array around the central cavity.

6. The injection preparation device as described in claim 5, characterized in that: An auxiliary positioning frame is provided on the outside of the central cavity.

7. The injection preparation device as described in claim 4, characterized in that: The frame includes a top plate, a bottom plate, and multiple columns connected between the top plate and the bottom plate. The top plate and the bottom plate are arranged parallel to each other at intervals. The multiple columns are distributed in a circular array at the outer periphery of the top plate and the bottom plate. The positioning holes are opened on the top plate, and the positioning grooves are opened on the bottom plate.

8. The injection preparation device as described in claim 7, characterized in that: Each of the positioning slots has a water passage hole that penetrates the bottom plate.

9. The injection preparation device as described in claim 7, characterized in that: There is at least one reinforcing rib connecting each pair of adjacent columns.

10. The injection preparation device as described in claim 1, characterized in that: A transparent observation window is provided on one side of the liquid preparation tank.

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