Injection filtering device

Abstract

The utility model discloses an injection filtering device which comprises a filtering box, the inner side wall of the filtering box is fixedly connected with a supporting rod, one end of the supporting rod is fixedly connected with a sleeve, and the inner wall of the sleeve is movably connected with a first filtering cylinder. The inner wall of the filter box is movably connected with a second filter cartridge, a third filter cartridge and a fourth filter cartridge through supporting rods and sleeves respectively. The device solves the problem that an existing injection filtering device is not uniform in filtering, by arranging the filtering box, the liquid storage box, a liquid inlet pipe, a pump body, a liquid outlet pipe, a liquid conveying pipe, a first filtering cylinder, a second filtering cylinder, a third filtering cylinder, a fourth filtering cylinder and a connecting pipe, when the injection is filtered, the injection can be dispersedly placed into different containers to be filtered, and the filtering efficiency is improved. And the situation that the injection is uniformly placed in one container and is easily filtered unevenly due to a large amount is avoided, so that the injection filtering uniformity is improved, and meanwhile, the injection filtering effect is further improved.

Description

Technical Field

[0001] The research and development technical direction of the present utility model's levosimendan injection specifically relates to an injection filtering device. Background Technique

[0002] Levosimendan injection is used for the short-term treatment of heart failure. This product needs to be diluted before administration. This product is only used for intravenous infusion and can be administered through peripheral or central venous infusion. The treatment dose and duration should be adjusted according to the general condition and clinical manifestations of the patient.

[0003] During the research and development process of levosimendan injection, a filtering device is usually used to filter it in order to filter out the particulate impurities attached to the levosimendan injection.

[0004] However, the current general injection filtering device has poor filtering uniformity during use. When filtering, most of the levosimendan injection is uniformly placed in a container for filtering. Due to the large total amount of levosimendan injection, uneven filtering is likely to occur, which will reduce the filtering effect on the levosimendan injection. This phenomenon has become an urgent problem to be solved by those skilled in the art. Content of the Utility Model

[0005] The purpose of the present utility model is to provide an injection filtering device for the existing device to solve the problems put forward in the above background technique.

[0006] To solve the above technical problems, the present utility model provides the following technical solution: An injection filtering device includes a filtering box. One end of a support rod is fixedly connected to the inner side wall of the filtering box, and a sleeve is fixedly connected to the other end of the support rod. A first filter cylinder is movably connected to the inner wall of the sleeve. The inner wall of the filtering box is movably connected to a second filter cylinder, a third filter cylinder, and a fourth filter cylinder through the support rod and the sleeve respectively. A liquid storage box is fixedly connected to one side of the filtering box. A liquid discharge pipe is fixedly connected to the top of the liquid storage box, and a pump body is fixedly connected to the top of the liquid storage box;

[0007] The liquid inlet of the pump body is fixedly connected to a liquid inlet pipe, and the liquid outlet of the pump body is fixedly connected to a liquid outlet pipe. One end of the liquid outlet pipe is movably connected to a connecting pipe, and one end of the connecting pipe is movably connected to an infusion pipe. The inner wall of the first filter cylinder is fixedly connected with a first filter screen, a second filter screen, and a third filter screen respectively. A connecting plate is fixedly connected to the inner side wall of the filtering box. A filter screen frame is movably connected to one side of the connecting plate. A liquid collecting pipe is fixedly connected to the bottom of the filtering box. A sealing door is movably connected to the front of the filtering box;

[0008] The present utility model is further described as follows. The number of the infusion tubes is four, and the four infusion tubes are respectively arranged inside the first filter cartridge, the second filter cartridge, the third filter cartridge, and the fourth filter cartridge, and can respectively transport the injection solution into the first filter cartridge, the second filter cartridge, the third filter cartridge, and the fourth filter cartridge for fractional filtration.

[0009] The present utility model is further described as follows. The inner wall of the sleeve is provided with internal threads, and the outer walls of the first filter cartridge, the second filter cartridge, the third filter cartridge, and the fourth filter cartridge are all provided with external threads, and the sleeve is threadedly connected to the first filter cartridge, the second filter cartridge, the third filter cartridge, and the fourth filter cartridge respectively through the internal threads and the external threads, which is convenient for the installation and disassembly of the first filter cartridge, the second filter cartridge, the third filter cartridge, and the fourth filter cartridge.

[0010] The present utility model is further described as follows. A chute is formed on one side of the connecting plate, and a sliding plate is slidably connected to the inner wall of the chute, and a filter screen frame is fixedly connected to one side of the sliding plate, which is convenient for the sliding installation and disassembly of the filter screen frame.

[0011] The present utility model is further described as follows. The pore diameter of the first filter screen is larger than that of the second filter screen, the pore diameter of the second filter screen is larger than that of the third filter screen, and the pore diameter of the third filter screen is larger than that of the filter screen frame, which is convenient for filtering and intercepting impurity particles of different sizes.

[0012] The present utility model is further described as follows. A pipe plug is movably connected to the inner wall of the liquid discharge pipe, and the pipe plug is snap-connected to the liquid discharge pipe, which can cover and seal the liquid discharge pipe.

[0013] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows: In the present utility model,

[0014] By providing a filter box, a liquid storage tank, a liquid inlet pipe, a pump body, a liquid outlet pipe, an infusion tube, a first filter cartridge, a second filter cartridge, a third filter cartridge, a fourth filter cartridge, and a connecting pipe, when filtering the injection solution, the injection solution can be dispersed into different containers for filtration, avoiding the situation that the injection solution is uniformly placed in one container and is likely to be filtered unevenly due to a large amount, thereby improving the uniformity of filtering the injection solution and further improving the filtering effect of the injection solution;

[0015] By providing a sleeve, a first filter cartridge, a second filter cartridge, a third filter cartridge, a fourth filter cartridge, a chute, a connecting plate, a filter screen frame, and a sliding plate, it is convenient to install and disassemble the filtering structure, thereby facilitating the cleaning of the filtering structure and ensuring the subsequent filtering effect of the filtering device on the injection solution. Description of the Drawings

[0016] The accompanying drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the accompanying drawings:

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a cross-sectional view of the present utility model;

[0019] Figure 3 is a cross-sectional view of the first filter cartridge of the present utility model;

[0020] Figure 4 is the present utility model Figure 2 a schematic enlarged structure view at position A;

[0021] Figure 5 is a schematic diagram of the connection structure between the infusion tube and the liquid outlet tube of the present utility model.

[0022] In the figure: 1, filtration box; 2, liquid collecting pipe; 3, liquid storage tank; 4, liquid discharge pipe; 5, liquid inlet pipe; 6, pump body; 7, liquid outlet pipe; 8, sealing door; 9, support rod; 10, infusion tube; 11, first filter cartridge; 12, sleeve; 13, second filter cartridge; 14, third filter cartridge; 15, fourth filter cartridge; 16, first filter screen; 17, second filter screen; 18, third filter screen; 19, sliding groove; 20, connecting plate; 21, filter screen frame; 22, sliding plate; 23, connecting pipe. Detailed implementation manners

[0023] The following further non-limiting detailed description of the technical solution of the present utility model is given in conjunction with the preferred embodiments and their accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0024] Please refer to Figures 1-5 , the present utility model provides a technical solution: an injection filtration device, including a filtration box 1, a support rod 9 is fixedly connected to the inner side wall of the filtration box 1, one end of the support rod 9 is fixedly connected to a sleeve 12, the inner wall of the sleeve 12 is movably connected to a first filter cartridge 11, the inner wall of the filtration box 1 is movably connected to a second filter cartridge 13, a third filter cartridge 14 and a fourth filter cartridge 15 respectively through the support rod 9 and the sleeve 12, a liquid storage tank 3 is fixedly connected to one side of the filtration box 1, a liquid discharge pipe 4 is fixedly connected to the top of the liquid storage tank 3, and a pump body 6 is fixedly connected to the top of the liquid storage tank 3;

[0025] The liquid inlet of the pump body 6 is fixedly connected with a liquid inlet pipe 5, the liquid outlet of the pump body 6 is fixedly connected with a liquid outlet pipe 7, one end of the liquid outlet pipe 7 is movably connected with a connecting pipe 23, one end of the connecting pipe 23 is movably connected with an infusion pipe 10, the inner walls of the first filter cylinder 11 are respectively fixedly connected with a first filter screen 16, a second filter screen 17 and a third filter screen 18, the inner side wall of the filter box 1 is fixedly connected with a connecting plate 20, one side of the connecting plate 20 is movably connected with a filter screen frame 21, the bottom of the filter box 1 is fixedly connected with a liquid collecting pipe 2, and the front of the filter box 1 is movably connected with a sealing door 8;

[0026] The number of the infusion pipes 10 is four, and the four infusion pipes 10 are respectively arranged inside the first filter cylinder 11, inside the second filter cylinder 13, inside the third filter cylinder 14 and inside the fourth filter cylinder 15, which can facilitate the fractional filtration of the injection liquid, thereby improving the uniformity of the filtration of the injection liquid and enhancing the filtration effect;

[0027] The inner wall of the sleeve 12 is provided with internal threads, the outer walls of the first filter cylinder 11, the second filter cylinder 13, the third filter cylinder 14 and the fourth filter cylinder 15 are all provided with external threads, and the sleeve 12 is threadedly connected with the first filter cylinder 11, the second filter cylinder 13, the third filter cylinder 14 and the fourth filter cylinder 15 through the internal threads and the external threads respectively. By threadedly installing and disassembling the first filter cylinder 11, the second filter cylinder 13, the third filter cylinder 14 and the fourth filter cylinder 15, it is convenient to clean the first filter screen 16, the second filter screen 17 and the third filter screen 18 inside them;

[0028] One side of the connecting plate 20 is provided with a sliding groove 19, and the inner wall of the sliding groove 19 is slidably connected with a sliding plate 22, and one side of the sliding plate 22 is fixedly connected with a filter screen frame 21, which can facilitate the installation and disassembly of the filtering structure, thereby facilitating the cleaning of the filtering structure and ensuring the subsequent filtering effect of the filtering device on the injection liquid;

[0029] The aperture of the first filter screen 16 is larger than that of the second filter screen 17, the aperture of the second filter screen 17 is larger than that of the third filter screen 18, and the aperture of the third filter screen 18 is larger than that of the filter screen frame 21, which can further improve the filtering effect on the injection liquid;

[0030] A pipe plug is movably connected to the inner wall of the liquid discharge pipe 4, and the pipe plug is snap-connected with the liquid discharge pipe 4, which can prevent foreign objects from entering the liquid storage tank 3 through the liquid discharge pipe 4 and contaminating the injection liquid.

[0031] In use, when it is necessary to filter levosimendan injection, the pump body 6 is turned on, and the liquid inlet pipe 5 transports the injection liquid in the liquid storage tank 3 into the liquid outlet pipe 7. The liquid outlet pipe 7 transports the injection liquid into the infusion pipe 10 through the connecting pipe 23. The infusion pipe 10 transports the injection liquid into the first filter cartridge 11, the second filter cartridge 13, the third filter cartridge 14 and the fourth filter cartridge 15 respectively, so that the injection liquid can pass through the first filter screen 16, the second filter screen 17 and the third filter screen 18 in sequence for filtration. The injection liquid that has passed through triple filtration is finally filtered again through the filter screen frame 21.

[0032] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0033] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it. Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. An injection filtering device, comprising a filtering box (1), characterized in that: The inner wall of the filter box (1) is fixedly connected with a support rod (9). One end of the support rod (9) is fixedly connected with a sleeve (12). The inner wall of the sleeve (12) is movably connected with a first filter cartridge (11). The inner wall of the filter box (1) is movably connected with a second filter cartridge (13), a third filter cartridge (14) and a fourth filter cartridge (15) through the support rod (9) and the sleeve (12) respectively. One side of the filter box (1) is fixedly connected with a liquid storage tank (3). The top of the liquid storage tank (3) is fixedly connected with a liquid discharge pipe (4). The top of the liquid storage tank (3) is fixedly connected with a pump body (6). The liquid inlet of the pump body (6) is fixedly connected with a liquid inlet pipe (5). The liquid outlet of the pump body (6) is fixedly connected with a liquid outlet pipe (7). One end of the liquid outlet pipe (7) is movably connected with a connecting pipe (23). One end of the connecting pipe (23) is movably connected with an infusion pipe (10). The inner wall of the first filter cartridge (11) is fixedly connected with a first filter screen (16), a second filter screen (17) and a third filter screen (18) respectively. The inner wall of the filter box (1) is fixedly connected with a connecting plate (20). One side of the connecting plate (20) is movably connected with a filter screen frame (21). The bottom of the filter box (1) is fixedly connected with a liquid collecting pipe (2). The front of the filter box (1) is movably connected with a sealing door (8).

2. The injection filtration device according to claim 1, wherein: The number of the infusion pipes (10) is four, and the four infusion pipes (10) are respectively arranged inside the first filter cartridge (11), inside the second filter cartridge (13), inside the third filter cartridge (14) and inside the fourth filter cartridge (15).

3. The injection filtration device according to claim 1, wherein: The inner wall of the sleeve (12) is provided with internal threads. The outer walls of the first filter cartridge (11), the second filter cartridge (13), the third filter cartridge (14) and the fourth filter cartridge (15) are all provided with external threads. The sleeve (12) is threadedly connected with the first filter cartridge (11), the second filter cartridge (13), the third filter cartridge (14) and the fourth filter cartridge (15) through the internal threads and the external threads respectively.

4. An injection filtering device according to claim 1, characterized in that: One side of the connecting plate (20) is provided with a chute (19). The inner wall of the chute (19) is slidably connected with a sliding plate (22). One side of the sliding plate (22) is fixedly connected with a filter screen frame (21).

5. The injection filtering device according to claim 1, wherein: The aperture of the first filter screen (16) is larger than that of the second filter screen (17). The aperture of the second filter screen (17) is larger than that of the third filter screen (18). The aperture of the third filter screen (18) is larger than that of the filter screen frame (21).

6. The injection filtration device according to claim 1, characterized in that: The inner wall of the liquid discharge pipe (4) is movably connected with a pipe plug, and the pipe plug is snap-connected with the liquid discharge pipe (4).

Images