A new type of filter infusion regulator

Abstract

A novel filtering infusion regulator comprises a flow guide assembly, the flow guide assembly comprises a liquid inlet sleeve and a conical valve body, the conical part of the conical valve body is fixedly installed in the liquid inlet sleeve, the opening part of the conical valve body extends out of the liquid inlet sleeve, and a liquid flow channel is formed between the liquid inlet sleeve and the conical valve body; a flow limiting assembly, the flow limiting assembly comprises a flow rate ring and a liquid outlet sleeve, the flow rate ring is fixedly connected with the liquid outlet sleeve, the flow rate ring is slidingly installed on the liquid inlet sleeve, and the flow rate ring is used for limiting the size of the opening of the liquid flow channel; through cooperation of the flow guide assembly, the flow limiting assembly and a driving assembly, the size of the opening of the liquid flow channel can be accurately and effectively adjusted, so that the liquid flow rate can be quickly and conveniently adjusted, operation is more simple and flexible, self-adjustment of a patient can be effectively avoided, the safety in use is greatly improved, and external pollution can also be avoided.

Description

Technical Field

[0001] This utility model relates to the field of infusion device technology, and in particular to a novel filter infusion regulator. Background Technology

[0002] An infusion set is a common medical device used to establish a channel between a vein and a medication, primarily for administering intravenous infusions to patients. An infusion set typically consists of a vein needle or injection needle, needle cap, infusion tubing, drip chamber, medication filter, flow regulator, air filter, stopper insert, protective sleeve, injection fitting, and external conical connector.

[0003] In existing infusion rooms, the flow rate is typically adjusted according to the specific medication being infused. Flow rate regulators generally use rollers to compress the infusion tubing, thereby altering the cross-sectional area of ​​the fluid flow channel. This adjustment controls the infusion flow rate. However, some patients, without the staff's consent, increase the infusion rate, leading to various complications and posing safety hazards.

[0004] Based on this, existing technologies, such as the Chinese patent with publication number CN219022696U, disclose an infusion flow rate regulator that allows selection of appropriate high-flow, medium-flow, or low-flow tubes according to actual needs, with corresponding infusion adapters connected to them. Simultaneously, by connecting an upper infusion tube and a lower infusion tube to its two ends respectively, the medication can be continuously supplied.

[0005] However, the above technical solutions still have at least the following drawbacks: medical staff need to change different flow tubes when adjusting the flow rate, which is cumbersome; the accuracy of flow rate adjustment is low; and the exposed flow tubes are easily contaminated. Changing the flow tubes can easily contaminate the flow tubes and the medication, posing a safety risk and limiting their use. Utility Model Content

[0006] In view of the above situation and to overcome the defects of the prior art, this utility model provides a novel filtration infusion regulator, comprising:

[0007] A flow guiding assembly includes a liquid inlet sleeve and a conical valve body. The conical portion of the conical valve body is fixedly installed inside the liquid inlet sleeve, and the opening of the conical valve body extends out of the liquid inlet sleeve. A liquid flow channel is formed between the liquid inlet sleeve and the conical valve body.

[0008] A flow limiting component, comprising a flow velocity ring and an outlet sleeve, wherein the flow velocity ring is fixedly connected to the outlet sleeve and is slidably mounted on the inlet sleeve, and the flow velocity ring is used to limit the size of the opening of the liquid flow channel;

[0009] A drive assembly, the drive assembly including a locking ring, the locking ring being rotatably mounted on the inlet sleeve, the locking ring being threaded onto the flow velocity ring, the locking ring being used to lock the flow velocity ring onto the inlet sleeve.

[0010] More preferably, the conical portion of the conical valve body has a plurality of guide plates, which are fixedly installed in a circumferential array on the inner sidewall of the inlet sleeve and extend out of the output end of the inlet sleeve.

[0011] More preferably, the flow velocity ring includes a cylindrical ring portion, the inner sidewall of which is formed with a guide groove, and the outer ring surface of the liquid inlet sleeve is formed with a guide strip, the guide strip being slidably installed in the guide groove.

[0012] More preferably, the flow rate ring further includes a horn ring portion, which is sleeved on the opening of the conical valve body, and the horn ring portion can fit snugly with the opening.

[0013] More preferably, the inner wall of the horn ring is formed with an annular groove, and the outer surface of the opening is formed with a sealing ring, which can be engaged in the annular groove.

[0014] More preferably, a limiting ring is formed on the outer annular surface of the liquid inlet sleeve, and a sliding groove is formed on the inner sidewall of the locking ring, with the limiting ring rotatably installed in the sliding groove.

[0015] More preferably, the drive assembly further includes a hand control ring, which is fixedly connected to the outer ring surface of the locking ring.

[0016] More preferably, the outer ring surface of the locking ring is formed with scale lines, and the outer ring surface of the flow velocity ring is fixedly connected with an indicator stop ring, which is slidably fitted onto the outer ring surface of the locking ring.

[0017] More preferably, the inlet sleeve is connected to a first infusion hose at its inlet end, a relief plate is fixedly connected to the inner wall of the outlet sleeve, a drain port is formed on the relief plate, and a second infusion hose is fixedly installed on the drain port.

[0018] More preferably, the outlet sleeve forms a protective cavity below the relief plate, and a drug filter is installed on the second infusion hose, the drug filter being located inside the protective cavity.

[0019] Compared with existing technologies, this utility model has a clever structure and is easy to operate. Through the cooperation of the flow guiding component, the flow limiting component and the driving component, it can accurately and effectively adjust the size of the liquid flow channel opening, thereby quickly and conveniently adjusting the flow rate of the medicine. The operation is simpler and more flexible, which can effectively prevent patients from adjusting it on their own, greatly improve the safety of use, and also prevent external contamination. It is also more convenient for medical staff to adjust the flow rate when changing dressings, making it more practical. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the isometric structure of this utility model.

[0021] Figure 2 This is a frontal sectional view of the structure of this utility model.

[0022] Figure 3 This is the top-view cross-sectional structure of the liquid inlet sleeve of this utility model.

[0023] Figure 4 This is a cross-sectional structural diagram of the liquid inlet sleeve, flow velocity ring, and locking ring of this utility model.

[0024] Figure 5 This is a cross-sectional structural diagram of the conical valve body, flow ring, and locking ring of this utility model.

[0025] Figure 6 This is a schematic diagram of the infusion regulator of this utility model located on the drip chamber.

[0026] Explanation of the labels in the diagram:

[0027] 1. Inlet sleeve; 2. Conical valve body; 3. Liquid flow channel; 4. Flow velocity ring; 401. Cylindrical ring section; 402. Horn ring section; 5. Outlet sleeve; 6. Locking ring; 7. Guide plate; 8. Guide groove; 9. Guide strip; 10. Ring groove; 11. Sealing ring; 12. Limiting ring; 13. Slide groove; 14. Hand control ring; 15. Scale line; 16. Indicator retaining ring; 17. First infusion hose; 18. Yield plate; 19. Drain port; 20. Second infusion hose; 21. Medicine filter; 22. Drip pot. Detailed Implementation

[0028] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0029] Depend on Figures 1 to 6 Provided, some embodiments of this utility model relate to a novel filtration infusion regulator, comprising:

[0030] The flow guiding assembly includes an inlet sleeve 1 and a conical valve body 2. The conical part of the conical valve body 2 is fixedly installed inside the inlet sleeve 1, and the opening of the conical valve body 2 extends out of the inlet sleeve 1. A flow channel 3 is formed between the inlet sleeve 1 and the conical valve body 2.

[0031] The flow limiting component includes a flow velocity ring 4 and an outlet sleeve 5. The flow velocity ring 4 and the outlet sleeve 5 are fixedly connected. The flow velocity ring 4 is slidably installed on the inlet sleeve 1. The flow velocity ring 4 is used to limit the size of the opening of the liquid flow channel 3.

[0032] The drive assembly includes a locking ring 6, which is rotatably mounted on the inlet sleeve 1 and threadedly mounted on the flow rate ring 4. The locking ring 6 is used to lock the flow rate ring 4 onto the inlet sleeve 1.

[0033] In these embodiments, after the medication enters the inlet sleeve 1, it flows out from the flow channel 3. The stable flow of the medication is ensured through the cooperation of the inlet sleeve 1 and the conical valve body 2. Furthermore, as the flow rate ring 4 slides within the inlet sleeve 1, the opening size of the flow channel 3 can be precisely and effectively adjusted, thereby changing its cross-sectional area. This means that the infusion flow rate is adjusted by changing the cross-sectional area of ​​the flow channel 3, allowing for the selection of a suitable medication flow rate according to actual usage needs. The medication, restricted by the flow rate ring 4, enters the outlet sleeve 5 at an appropriate flow rate and is then delivered to the patient. The rotation of the locking ring 6 on the inlet sleeve 1 causes the flow rate ring 4 to rise or fall along the inlet sleeve 1, thus adjusting the opening size of the flow channel 3. Stopping the rotation of the locking ring 6 locks the flow rate ring 4 onto the inlet sleeve 1, thereby fixing the flow channel 3 at an appropriate size, ensuring a constant medication flow rate. This allows for rapid and stable adjustment of the medication flow rate, making adjustment and operation simpler and more convenient, and providing greater flexibility in use.

[0034] With the cooperation of the flow guiding component, flow limiting component, and drive component, medical staff can adjust the flow rate more simply and flexibly. The adjustment requires two hands to operate, that is, one hand to fix the infusion sleeve 1 and the other hand to rotate the locking ring 6. When the patient is receiving the infusion, it is difficult to operate with both hands. This can effectively prevent the patient from adjusting the flow rate on their own, greatly improve the safety of use, prevent external contamination, ensure the safety of the medication, and make it easier for medical staff to adjust the flow rate when changing the dressing. It is more practical.

[0035] In some embodiments of a novel filtration infusion regulator, the cone portion of the conical valve body 2 is provided with a plurality of guide plates 7, which are fixedly mounted in a circumferential array on the inner wall of the inlet sleeve 1 and extend out of the output end of the inlet sleeve 1.

[0036] In these embodiments, the conical valve body 2 is fixedly connected to the liquid inlet sleeve 1 by a number of guide plates 7, which ensures the stability of the connection of the conical valve body 2. Furthermore, the guide plates 7 can also ensure the stable flow of the liquid medicine from the liquid inlet sleeve 1, thereby improving the stability of the liquid medicine flow rate regulation.

[0037] In some embodiments of a novel filtration infusion regulator, the flow ring 4 includes a cylindrical ring portion 401, the inner sidewall of which is formed with a guide groove 8, and the outer ring surface of the inlet sleeve 1 is formed with a guide strip 9, which is slidably installed in the guide groove 8.

[0038] In these embodiments, there are multiple guide grooves 8, which are evenly distributed on the inner sidewall of the cylindrical ring portion 401. Corresponding guide strips 9 are evenly distributed on the outer ring surface of the liquid inlet sleeve 1. By sliding the guide strips 9 in the guide grooves 8, the flow velocity ring 4 can move up and down quickly and stably on the liquid inlet sleeve 1, which helps to improve the stability of the opening size of the regulating liquid flow channel 3.

[0039] In some embodiments of a novel filtration infusion regulator, the flow ring 4 further includes a horn ring portion 402, which is sleeved on the opening of the conical valve body 2, and the horn ring portion 402 can fit into the opening.

[0040] In these embodiments, the horn ring 402 has an inner sidewall with the same inclination angle as the opening. The cooperation between the inclination of the inner sidewall and the inclined surface of the opening ensures that the horn ring 402 can fit tightly against the opening of the conical valve body 2, thereby ensuring the stability of the liquid flow channel 3 closure and facilitating medication changes by medical personnel. Furthermore, the inclination of the inner sidewall of the horn ring 402 effectively guides the flow of the medication, ensuring the stability of flow rate regulation.

[0041] In some embodiments of a novel filtration infusion regulator, an annular groove 10 is formed on the inner sidewall of the horn ring portion 402, and a sealing ring 11 is formed on the outer surface of the opening portion, the sealing ring 11 being able to engage within the annular groove 10.

[0042] In these embodiments, the cooperation between the annular groove 10 and the sealing ring 11 allows the horn ring 402 to fit into the opening of the conical valve body 2, effectively improving the sealing performance and preventing leakage of the medicine solution. This, in turn, improves the stability during medicine solution replacement and ensures the safe use of the infusion set.

[0043] In some embodiments of a novel filtration infusion regulator, a limiting ring 12 is formed on the outer annular surface of the inlet sleeve 1, and a groove 13 is formed on the inner sidewall of the locking ring 6, with the limiting ring 12 rotatably mounted in the groove 13.

[0044] In these embodiments, the limiting ring 12 is located at the upper part of the liquid inlet sleeve 1. The limiting ring 12 rotates in the slide groove 13 to ensure that the locking ring 6 can rotate stably on the liquid inlet sleeve 1, which facilitates timely operation of the locking ring 6 and makes it more convenient to use.

[0045] In some embodiments of a novel filtration infusion regulator, the drive assembly further includes a manual control ring 14, which is fixedly connected to the outer ring surface of the locking ring 6.

[0046] In these embodiments, the hand control ring 14 makes it easier for medical staff to operate and use, and it is also easier to operate with both hands. That is, one hand holds the fixed inlet sleeve 1, and the other hand rotates the hand control ring 14, thereby driving the locking ring 6 to rotate. Then, the size of the fluid flow channel 3 can be adjusted by moving the flow rate ring 4. It is simple and flexible to use, better meets the work needs of medical staff, and reduces the difficulty of use.

[0047] In some embodiments of a novel filtration infusion regulator, the outer ring surface of the locking ring 6 is formed with scale lines 15, and the outer ring surface of the flow rate ring 4 is fixedly connected with an indicator retaining ring 16, which is slidably fitted onto the outer ring surface of the locking ring 6.

[0048] In these embodiments, when medical staff adjust the flow rate of the medicine, the scale line 15 can quickly indicate the flow rate. When the locking ring 6 is rotated, the indicator stop ring 16 is also driven to move up and down synchronously with the flow rate ring 4. The display of the scale line 15 allows for efficient and accurate adjustment of the flow rate of the medicine, making it easier for medical staff to judge the use and reducing the difficulty of use.

[0049] In some embodiments of a novel infusion filter regulator, the inlet sleeve 1 is connected to a first infusion hose 17 at its input end, and a relief plate 18 is fixedly connected to the inner wall of the outlet sleeve 5. A drain port 19 is formed on the relief plate 18, and a second infusion hose 20 is fixedly installed on the drain port 19.

[0050] In these embodiments, the medicine enters the inlet sleeve 1 through the first infusion tubing 17, and after adjusting the flow rate, it is delivered out through the outlet 19 and the second infusion tubing 20. The cooperation between the first infusion tubing 17 and the second infusion tubing 20 ensures the smooth delivery of the medicine.

[0051] When understanding is required, such as Figure 6 As shown, in the infusion set, the infusion regulator of this invention can be located above or below the drip chamber 22 (not shown in the figure). When it is above the drip chamber, it can further prevent patients from adjusting the flow rate on their own, which is conducive to improving the safety of use.

[0052] In some embodiments of a novel infusion filter regulator, the outlet sleeve 5 is located below the relief plate 18 and forms a protective cavity, and a drug filter 21 is installed on the second infusion hose 20, with the drug filter 21 located inside the protective cavity.

[0053] In these embodiments, placing the drug filter 21 inside the protective cavity can further improve the filtration effect and enhance the protective performance, ensuring the safe use of the drug filter 21. The drug filter 21 is existing technology in known infusion sets, so its detailed mechanical structure and working principle will not be described in detail in this article.

[0054] When using this invention, if the flow rate of the medication needs to be adjusted, the medical staff holds the inlet sleeve 1 in one hand and rotates the hand control ring 14 with the other hand. This causes the locking ring 6 to rotate on the inlet sleeve 1. Through the threaded engagement of the locking ring 6 and the flow rate ring 4, and in conjunction with the cooperation of the guide groove 8 and the guide strip 9, the flow rate ring 4 moves up and down on the inlet sleeve 1. Then, the opening size of the fluid channel 3 is adjusted. With the cooperation of the inlet sleeve 1 and the conical valve body 2, the appropriate flow rate of the medication can be adjusted. After stopping the rotation of the locking ring 6, the flow rate ring 4 is fixed on the inlet sleeve 1, thereby fixing the flow rate of the medication at a constant rate. Furthermore, during adjustment, by observing the scale line 15 at the top of the indicator ring 16, the flow rate of the medication can be adjusted to an appropriate level efficiently and accurately. The operation is simple and flexible, preventing patients from adjusting it themselves and effectively reducing the difficulty of operation, which is conducive to improving the work efficiency of medical staff.

[0055] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel filtration infusion regulator, characterized in that, include: A flow guiding assembly includes an inlet sleeve (1) and a conical valve body (2). The conical part of the conical valve body (2) is fixedly installed inside the inlet sleeve (1), and the opening of the conical valve body (2) extends out of the inlet sleeve (1). A flow channel (3) is formed between the inlet sleeve (1) and the conical valve body (2). The flow limiting component includes a flow velocity ring (4) and an outlet sleeve (5). The flow velocity ring (4) is fixedly connected to the outlet sleeve (5). The flow velocity ring (4) is slidably installed on the inlet sleeve (1). The flow velocity ring (4) is used to limit the size of the opening of the liquid flow channel (3). The drive assembly includes a locking ring (6) which is rotatably mounted on the inlet sleeve (1) and threadedly mounted on the flow rate ring (4). The locking ring (6) is used to lock the flow rate ring (4) on the inlet sleeve (1).

2. The novel filtration infusion regulator according to claim 1, characterized in that, The conical valve body (2) has a plurality of guide plates (7) formed on its conical part. The plurality of guide plates (7) are fixedly installed in a circumferential array on the inner side wall of the liquid inlet sleeve (1) and extend out of the output end of the liquid inlet sleeve (1).

3. The novel filtration infusion regulator according to claim 1, characterized in that, The flow velocity ring (4) includes a cylindrical ring portion (401), the inner sidewall of which is formed with a guide groove (8), and the outer ring surface of the liquid inlet sleeve (1) is formed with a guide strip (9), which is slidably installed in the guide groove (8).

4. The novel filtration infusion regulator according to claim 1, characterized in that, The flow rate ring (4) also includes a horn ring (402), which is sleeved on the opening of the conical valve body (2) and can fit into the opening.

5. A novel filtration infusion regulator according to claim 4, characterized in that, The inner wall of the horn ring (402) is formed with an annular groove (10), and the outer surface of the opening is formed with a sealing ring (11), which can be engaged in the annular groove (10).

6. A novel filtration infusion regulator according to claim 1, characterized in that, The outer ring of the liquid inlet sleeve (1) forms a limiting ring (12), and the inner sidewall of the locking ring (6) forms a sliding groove (13). The limiting ring (12) is rotatably installed in the sliding groove (13).

7. A novel filtration infusion regulator according to claim 1, characterized in that, The drive assembly also includes a hand control ring (14), which is fixedly connected to the outer ring surface of the locking ring (6).

8. A novel filtration infusion regulator according to claim 1, characterized in that, The outer ring surface of the locking ring (6) has a scale line (15), and the outer ring surface of the flow rate ring (4) is fixedly connected to an indicator stop ring (16), which is slidably fitted onto the outer ring surface of the locking ring (6).

9. A novel filtration infusion regulator according to claim 1, characterized in that, The inlet sleeve (1) is connected to the first infusion hose (17) at its input end. The inner wall of the outlet sleeve (5) is fixedly connected to a relief plate (18). A drain port (19) is formed on the relief plate (18). A second infusion hose (20) is fixedly installed on the drain port (19).

10. A novel filtration infusion regulator according to claim 9, characterized in that, The outlet sleeve (5) is located below the relief plate (18) and forms a protective cavity. A drug filter (21) is installed on the second infusion hose (20) and the drug filter (21) is located inside the protective cavity.

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