Anti-blood-return filtering infusion apparatus
By designing anti-hemog-return filter infusion devices, using filter mesh and one-way valves to achieve safe filtration and prevent blood recovery of drugs, the problem that existing infusion devices cannot effectively filter and prevent blood recovery is solved, reducing waste of materials and drugs, and improving Infusion safety and efficiency.
Patent Information
- Application Number
- CN202420050707.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-09
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-01-09
AI Technical Summary
The existing infusion device cannot be effectively filtered and prevented from returning blood during use, resulting in low safety in infusion and difficult to deal with when the filter is blocked, resulting in waste of materials and medicines.
A blood-return filter infusion device is designed, including an upper tube, a dropper, a regulation component, a liquid inlet component, a filter component and a blood-return component. The filter mesh is used to filter impurities in the drug and avoid blood reflux through a check valve. When the filter is blocked, the hood and connector can be replaced without changing the entire infusion device, reducing waste.
It realizes safe filtration and prevents blood recovery of drugs, avoids blood reflux, reduces waste of materials and drugs, and improves the efficiency and safety of infusion devices.
Smart Images
Figure CN222172783U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of infusion device equipment, in particular to an anti-blood backflow filtering infusion device. Background Art
[0002] Infusion sets are commonly used medical devices, which are convenient for infusion work for personnel. The utility model patent with patent application number CN202021923470.2 discloses a disposable infusion set, in which the positioning tube is sleeved corresponding to the bottle plug, so that the end faces of the threaded puncture tube and the bottle plug are perpendicular, and the threaded puncture tube is plugged and rotated corresponding to the bottle plug. It is not necessary to completely rely on applying force along the length direction of the threaded puncture tube to the threaded puncture tube to make the threaded puncture tube penetrate the bottle plug, which is more labor-saving. When the threaded puncture tube first contacts the bottle plug, It can be more convenient to penetrate the bottle stopper so that the threaded puncture tube can be rotated to puncture the bottle stopper. At the same time, the diameter of the threaded puncture tube can be thickened to avoid the threaded puncture tube from bending and deformation. According to the technical solution disclosed by the invention, the existing infusion device cannot effectively filter and prevent blood return when in use, which is not conducive to ensuring the safety of infusion. On the other hand, when the filter is blocked, it is not conducive to ensuring the infusion work, and often the infusion device is blocked, resulting in waste of materials and medicines.
[0003] Therefore, how to design an anti-blood backflow filtering infusion set has become our current problem to be solved. Utility Model Content
[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an anti-blood backflow filtering infusion set to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable design and is relatively convenient to use, and is suitable for personnel's safe infusion work.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a blood-backflow prevention filtering infusion device, comprising an upper tube and a dropper, the dropper is connected to an adjustment component, the adjustment component comprises a lower tube and a speed regulator, the upper tube is connected to a liquid inlet component, the liquid inlet component comprises a puncture and an air tube, the lower tube is equipped with a filter component, the filter component comprises a ferrule and a filter screen, the ferrule is equipped with a blood-backflow prevention component, the blood-backflow prevention component comprises a joint and a one-way valve, the joint is equipped with an infusion component, and the infusion component comprises a capillary tube and a needle.
[0006] Furthermore, one end of the upper tube is sleeved on the outer side of one end of the puncture, the trachea is welded to one side of the puncture, and the trachea and the upper tube are both connected to the puncture.
[0007] Furthermore, one end of the dropper is integrally formed at the other end of the upper tube, one end of the lower tube is integrally formed at the other end of the dropper, and the speed regulator is sleeved on the outer side of the lower tube.
[0008] Furthermore, a connecting sleeve is integrally formed at the bottom of the ferrule, the connecting sleeve is arranged at the other end of the lower tube, the filter screen is stuck on the inner side of the ferrule, and the top of the filter screen is connected to the inner wall of the top of the ferrule through a spring.
[0009] Furthermore, a sealing plate is installed on the inner side of the other end of the lower tube, and one end of the sealing plate is welded to the inner wall of one side of the lower tube through a spring sheet.
[0010] Furthermore, a guide rod is welded to the bottom of the filter screen, one end of the guide rod extends to the inner side of the lower tube, and the other end of the sealing plate is clamped on the outer side of the guide rod.
[0011] Furthermore, the connector is integrally formed on the top of the ferrule, the one-way valve is installed on the inner side of the connector, and the ferrule is unidirectionally connected to the connector via the one-way valve.
[0012] Furthermore, one end of the capillary tube is welded to the top of the joint, and the top of the needle is stuck on the inner side of the other end of the capillary tube.
[0013] Beneficial effects: 1. When the anti-backflow filtering infusion device is in use, the medicine enters the inner side of the ferrule through the lower tube, and then is filtered by the filter. The pressure formed by the medicine on the lower tube, the dropper and the upper tube is used to push open the one-way valve and enter the inner side of the capillary tube, and then is delivered to the human body through the needle. The filter is used to filter out broken glass, impurities in the medicine, and incompletely dissolved solid medicines, and the one-way valve is used to prevent blood from flowing back, thereby ensuring the safety of the infusion work of the personnel.
[0014] 2. When the anti-backflow filtering infusion set is in use, when the filter screen is clogged due to a large number of filtered impurities, the pressure on the filter screen will increase when the medicine flows through the filter screen, thereby causing the filter screen compression spring to move until the filter screen moves to the position of the marked line. At this time, the filter screen will cause a greater obstacle to the infusion work, and the ferrule can be pulled out from the lower tube through the connecting sleeve, the lower tube can be sealed with a sealing plate, and then a new ferrule and connector can be replaced to carry out the infusion work. There is no need to replace the entire infusion set, thereby reducing the waste of materials and medicines in the lower tube and dropper.
[0015] 3. The anti-blood backflow filtering infusion set is reasonably designed, efficient and convenient to use, and is suitable for personnel's safe infusion work. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the structure of a blood-back-proof filtering infusion device of the utility model;
[0017] Figure 2 This is a cross-sectional view of an anti-blood backflow filtering infusion device of the utility model;
[0018] Figure 3 This is a cross-sectional view of a ferrule of an anti-blood-backflow filtering infusion device of the utility model;
[0019] In the figure: 1. upper tube; 2. dropper; 3. lower tube; 4. speed regulator; 5. puncture; 6. trachea; 7. capillary tube; 8. needle; 9. ferrule; 10. connector; 11. one-way valve; 12. filter; 13. spring; 14. marking line; 15. connector; 16. sealing plate; 17. guide rod. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figures 1 to 3The utility model provides a technical solution: an anti-blood backflow filtering infusion set, comprising an upper tube 1 and a dropper 2, the dropper 2 is connected with an adjusting component, the adjusting component comprises a lower tube 3 and a speed regulator 4, the upper tube 1 is connected with a liquid inlet component, the liquid inlet component comprises a puncture 5 and an trachea 6, the lower tube 3 is equipped with a filter component, the filter component comprises a ferrule 9 and a filter screen 12, the ferrule 9 is equipped with an anti-blood backflow component, the anti-blood backflow component comprises a joint 10 and a one-way valve 11, the joint 10 is equipped with an infusion component, the infusion component comprises a capillary 7 and a needle 8, the bottom of the ferrule 9 is integrally formed with a connecting sleeve 15, the connecting sleeve 15 is sleeved on the other end of the lower tube 3, the filter screen 12 is stuck on the inner side of the ferrule 9, the top of the filter screen 12 is connected to the inner wall of the top of the ferrule 9 through a spring 13, the A marking line 14 is engraved on the outer side of the ferrule 9, and a guide rod 17 is welded to the bottom of the filter screen 12. One end of the guide rod 17 extends to the inner side of the lower tube 3, and the other end of the sealing plate 16 is stuck on the outer side of the guide rod 17. During use, when the filter screen 12 is blocked to a certain extent due to the large number of filtered impurities, the pressure generated on the filter screen 12 will increase when the medicine flows through the filter screen 12, thereby causing the filter screen 12 compression spring 13 to move until the filter screen 12 moves to the position of the marking line 14. At this time, the filter screen 12 will cause a greater obstacle to the infusion work, and the ferrule 9 can be pulled out from the lower tube 3 through the connecting sleeve 15, and the sealing plate 16 will block the lower tube 3. After replacing the new ferrule 9 and the connector 10, the infusion work can be carried out without replacing all the infusion sets, thereby reducing the waste of materials and the medicines in the lower tube 3 and the dropper 2.
[0022] In this embodiment, one end of the upper tube 1 is sleeved on the outer side of one end of the puncture 5, the air pipe 6 is welded to one side of the puncture 5, the air pipe 6 and the upper tube 1 are both connected to the puncture 5, one end of the dropper 2 is integrally formed at the other end of the upper tube 1, one end of the lower tube 3 is integrally formed at the other end of the dropper 2, the speed regulator 4 is sleeved on the outer side of the lower tube 3, and a sealing plate 16 is installed on the inner side of the other end of the lower tube 3, one end of the sealing plate 16 is welded to the inner wall of one side of the lower tube 3 through a spring sheet, the joint 10 is integrally formed on the top of the ferrule 9, the one-way valve 11 is installed on the inner side of the joint 10, and the ferrule 9 It is connected to the joint 10 in one direction through a one-way valve 11, one end of the thin tube 7 is welded to the top of the joint 10, and the top of the needle 8 is stuck on the inner side of the other end of the thin tube 7. When in use, the medicine enters the inner side of the sleeve 9 through the lower tube 3, and then is filtered by the filter 12. The pressure formed by the medicine on the lower tube 3, the dropper 2 and the upper tube 1 is used to push the one-way valve 11 open and enter the inner side of the thin tube 7, and then is transported into the human body through the needle 8. The filter 12 is used to filter out broken glass, impurities in the medicine, and incompletely dissolved solid medicine, and the one-way valve 11 is used to prevent blood from flowing back, thereby ensuring the safety of the infusion work of the personnel.
[0023] When the anti-backflow filtering infusion device is in use, the medicine enters the inner side of the ferrule 9 through the lower tube 3, and then is filtered by the filter 12. The medicine pushes the one-way valve 11 to enter the inner side of the capillary 7 by using the pressure formed by the medicine on the lower tube 3, the dropper 2 and the upper tube 1, and is then delivered to the human body through the needle 8. The filter 12 is used to filter out broken glass, impurities in the medicine, and solid medicine that is not completely dissolved, and the one-way valve 11 is used to prevent blood from flowing back, thereby ensuring the safety of the infusion work of the personnel. When the filter 12 has a lot of impurities filtered, a When there is a certain blockage, the pressure on the filter screen 12 will increase when the medicine flows through the filter screen 12, thereby causing the filter screen 12 to compress the spring 13 and move until the filter screen 12 moves to the position of the marking line 14. At this time, the filter screen 12 will cause a greater obstacle to the infusion work, and the ferrule 9 can be pulled out from the lower tube 3 through the connecting sleeve 15, and the sealing plate 16 can be used to block the lower tube 3. After replacing the new ferrule 9 and the connector 10, the infusion work can be carried out without replacing the entire infusion set, thereby reducing the waste of materials and the medicine in the lower tube 3 and the dropper 2.
[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A blood-return-proof filtering infusion device, comprising an upper tube (1) and a dropper (2), the dropper (2) being connected to an adjusting component, the adjusting component comprising a lower tube (3) and a speed regulator (4), the upper tube (1) being connected to a liquid inlet component, the liquid inlet component comprising a puncture (5) and a trachea (6), characterized in that: The lower tube (3) is mounted with a filter assembly, the filter assembly comprising a ferrule (9) and a filter screen (12); the ferrule (9) is mounted with an anti-blood-backflow assembly, the anti-blood-backflow assembly comprising a connector (10) and a one-way valve (11); the connector (10) is mounted with an infusion assembly, the infusion assembly comprising a capillary tube (7) and a needle (8).
2. The anti-blood backflow filtering infusion device according to claim 1, characterized in that: One end of the upper tube (1) is sleeved on the outer side of one end of the puncture (5), the trachea (6) is welded to one side of the puncture (5), and the trachea (6) and the upper tube (1) are both connected to the puncture (5).
3. The anti-blood backflow filtering infusion device according to claim 2, characterized in that: One end of the dropper (2) is integrally formed at the other end of the upper tube (1), one end of the lower tube (3) is integrally formed at the other end of the dropper (2), and the speed regulator (4) is sleeved on the outer side of the lower tube (3).
4. The anti-blood backflow filtering infusion device according to claim 3, characterized in that: The bottom of the ferrule (9) is integrally formed with a connecting sleeve (15), the connecting sleeve (15) is sleeved on the other end of the lower tube (3), the filter screen (12) is clamped on the inner side of the ferrule (9), the top of the filter screen (12) is connected to the inner wall of the top of the ferrule (9) via a spring (13), and a marking line (14) is engraved on the outer side of the ferrule (9).
5. The anti-blood backflow filtering infusion device according to claim 1, characterized in that: A sealing plate (16) is installed on the inner side of the other end of the lower tube (3), and one end of the sealing plate (16) is welded to the inner wall of one side of the lower tube (3) via a spring sheet.
6. The anti-blood backflow filtering infusion device according to claim 5, characterized in that: A guide rod (17) is welded to the bottom of the filter screen (12), one end of the guide rod (17) extends to the inner side of the lower tube (3), and the other end of the sealing plate (16) is clamped on the outer side of the guide rod (17).
7. The anti-blood-backflow filtering infusion device according to claim 6, characterized in that: The connector (10) is integrally formed on the top of the ferrule (9), the one-way valve (11) is installed on the inner side of the connector (10), and the ferrule (9) is in one-way communication with the connector (10) via the one-way valve (11).
8. The anti-blood backflow filtering infusion device according to claim 7, characterized in that: One end of the capillary tube (7) is welded to the top of the joint (10), and the top of the needle (8) is clamped on the inner side of the other end of the capillary tube (7).