Infusion tube
By introducing a filter with a self-sealing diaphragm into the infusion tube, the problem of closure during the infusion tube is solved, and the automatic sealing function is realized to prevent air and pollutants from entering, improving the safety and operation convenience of infusion.
Patent Information
- Application Number
- CN202421272189.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-06-05
AI Technical Summary
The existing infusion tubes do not have a self-closing function when replacing the filter, causing air to enter the filter and leaking of the drug solution, increasing the risk of cross-infection, and requiring additional steps and measures to ensure closure and inconvenience.
A filter containing a self-sealing diaphragm is designed, which can be automatically closed when replacing the infusion tube to prevent air and pollutants from entering. The self-sealing diaphragm made of elastic materials bent on the inner wall of the filter to open the channel, close the channel when it is restored to its original state, and simplify the operation process.
Effectively prevent cross-infection and contamination of drug liquids, maintain the purity of drug liquids, simplify operation procedures, improve convenience and efficiency, and reduce operating time.
Smart Images

Figure CN223170083U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to an infusion tube. Background Art
[0002] An infusion tube is a commonly used medical device in the medical field, which is used to transport fluid substances such as drugs, fluid replacement, and nutrient solutions into the patient's body, and is required to be used during internal medical treatment work.
[0003] When replacing the existing infusion tube, the filter does not have a self-sealing function, which will cause air to enter the filter and the liquid medicine to leak, increasing the risk of cross-infection. Extra steps and measures are required to ensure the sealing of the filter and the infusion tube, which is not convenient for daily use. Summary of the Utility Model
[0004] The purpose of the utility model is to solve the disadvantages in the existing technology that when replacing the filter of the existing infusion tube, the filter does not have a self-sealing function, which will cause air to enter the filter and the liquid medicine to leak, increasing the risk of cross-infection. Extra steps and measures are required to ensure the sealing of the filter and the infusion tube, which is not convenient for daily use, and to provide an infusion tube.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] An infusion tube includes an infusion tube body, a flow controller is installed on the infusion tube body, a connection joint is connected to the top end of the infusion tube body, a filter is installed on the top end of the connection joint, a bottle needle is arranged on the top end of the filter, a self-sealing diaphragm is arranged on the inner wall of the filter, an infusion tube fixing clip assembly is arranged at the lower end of the infusion tube body, and the infusion tube fixing clip assembly includes a base, a card seat and an insertion hole. A card seat is arranged on the inner wall of the base, and insertion holes are opened at the upper and lower ends of the base.
[0007] Preferably, infusion holes are respectively opened at the upper and lower ends of the filter, the connection joint is inserted into the lower infusion hole of the filter, and the bottle needle is arranged in the upper infusion hole of the filter.
[0008] Preferably, a filter cavity is arranged at the bottom end of the inner wall of the filter, the self-sealing diaphragm is attached to the inner wall of the filter, and the shape and size of the self-sealing diaphragm match the shape and size of the filter cavity.
[0009] Preferably, an installation hole is opened on the flow controller, and the infusion tube body penetrates through the installation hole.
[0010] Preferably, the base is elliptical, card seats are convexly arranged on the left and right sides of the inner wall of the base, the size of the insertion hole matches the size of the infusion tube body, and a fixing notch is opened on one side of the outer wall of the base.
[0011] The utility model has the following beneficial effects:
[0012] The utility model is provided with a self-sealing diaphragm. When replacing the infusion tube, the diaphragm can self-seal to prevent air, microorganisms or other pollutants from entering the pipeline, effectively preventing cross-infection and contamination during the drug infusion process, protecting the safety of patients, and preventing the liquid medicine inside the pipeline from contacting the external environment, avoiding impurities such as gas, dust, and bacteria from entering the liquid medicine, thereby maintaining the purity and quality of the liquid medicine. The self-sealing diaphragm can automatically open and close without additional operations or equipment, simplifying the usage process of the infusion pipeline, reducing the complexity and time of operations, and improving the convenience and efficiency of operations. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is an overall structural schematic diagram of an infusion tube proposed by the utility model;
[0014] Figure 2 is a sectional structural schematic diagram of an infusion tube proposed by the utility model;
[0015] Figure 3 is a sectional structural schematic diagram of a filter of an infusion tube proposed by the utility model;
[0016] Figure 4 is a structural schematic diagram of an infusion tube fixing clip assembly of an infusion tube proposed by the utility model.
[0017] In the figure: 1, infusion tube body; 2, flow controller; 3, connection joint; 4, filter; 5, bottle needle; 6, self-sealing diaphragm; 7, infusion tube fixing clip assembly; 701, base; 702, card seat; 703, jack. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.
[0019] Referring to Figures 1-4 , an infusion tube includes an infusion tube body 1, a flow controller 2 is installed on the infusion tube body 1, a connection joint 3 is connected to the top end of the infusion tube body 1, a filter 4 is installed at the top end of the connection joint 3, a bottle needle 5 is arranged at the top end of the filter 4, a self-sealing diaphragm 6 is arranged on the inner wall of the filter 4, an infusion tube fixing clip assembly 7 is arranged at the lower end of the infusion tube body 1, the infusion tube fixing clip assembly 7 includes a base 701, a card seat 702 and a jack 703, a card seat 702 is arranged on the inner wall of the base 701, and jacks 703 are opened at the upper and lower ends of the base 701.
[0020] The upper and lower ends of the filter 4 are respectively provided with infusion holes. The connecting joint 3 is inserted into the lower infusion hole of the filter 4, and the bottle needle 5 is arranged in the upper infusion hole of the filter 4. The filter 4 can effectively remove the particles in the liquid, ensuring the purity and safety during the infusion process. The filter 4 is usually composed of a filter membrane, a housing and a connecting part. The filter membrane is the core part of the filter 4. It has a specific pore size and can screen out particles and impurities of different sizes;
[0021] At the bottom end of the inner wall of the filter 4, there is a filtering cavity. The self-sealing diaphragm 6 is fitted on the inner wall of the filter 4. The shape and size of the self-sealing diaphragm 6 match the shape and size of the filtering cavity. The self-sealing diaphragm 6 is made of an elastic material and has good resilience and self-sealing performance. When the infusion tube is inserted or connected to the self-sealing diaphragm 6, the self-sealing diaphragm 6 bends and separates on the inner wall of the filter 4, thus opening the liquid passage. When replacing the infusion tube, the self-sealing diaphragm 6 returns to its original state and closes the liquid passage;
[0022] There are mounting holes on the flow controller 2. The infusion tube body 1 is arranged through the mounting holes. The flow controller 2 is a device used to adjust the fluid flow rate in the infusion tube body 1.
[0023] The base 701 is oval. On the left and right sides of the inner wall of the base 701, there are raised clamping seats 702. The size of the jack 703 matches the size of the infusion tube body 1. On one side of the outer wall of the base 701, there is a fixing notch. Through the jack 703, it is ensured that the inserted infusion tube can be stably installed on the base 701. The fixing notch is an opening along the outer wall of the base 701, used to fix and install the position of the base 701 so that the base 701 can be clamped and fixed at the specified position;
[0024] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, when using this device, first place this device at the specified working position. By setting the self-sealing diaphragm 6, when replacing the infusion tube, the self-sealing diaphragm 6 can self-seal, preventing air, microorganisms or other pollutants from entering the pipeline, effectively preventing cross-infection and contamination during the drug infusion process, protecting the safety of patients, and preventing the liquid medicine inside the pipeline from contacting the external environment, avoiding impurities such as gas, dust, and bacteria from entering the liquid medicine, thereby maintaining the purity and quality of the liquid medicine. The self-sealing diaphragm can automatically open and close, without additional operations or equipment, simplifying the use process of the drug infusion pipeline, reducing the complexity and time of the operation, and improving the convenience and efficiency of the operation.
[0025] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.
Claims
1. An infusion tube, comprising an infusion tube body (1), characterized in that A flow controller (2) is installed on the infusion tube body (1). The top end of the infusion tube body (1) is connected to a connection joint (3). A filter (4) is installed at the top end of the connection joint (3). A bottle needle (5) is arranged at the top end of the filter (4). A self-sealing diaphragm (6) is arranged on the inner wall of the filter (4). The lower end of the infusion tube body (1) is provided with an infusion tube fixing clip assembly (7). The infusion tube fixing clip assembly (7) includes a base (701), a clamping seat (702) and a jack (703). The clamping seat (702) is arranged on the inner wall of the base (701). The upper and lower ends of the base (701) are provided with jacks (703).
2. The infusion tube according to claim 1, characterized in that: Infusion holes are respectively arranged at the upper and lower ends of the filter (4). The connection joint (3) is inserted into the lower infusion hole of the filter (4). The bottle needle (5) is arranged in the upper infusion hole of the filter (4).
3. The infusion tube according to claim 2, wherein: A filter cavity is arranged at the bottom end of the inner wall of the filter (4). The self-sealing diaphragm (6) is attached to the inner wall of the filter. The shape and size of the self-sealing diaphragm (6) match the shape and size of the filter cavity.
4. The infusion tube according to claim 1, characterized in that: An installation hole is provided on the flow controller (2). The infusion tube body (1) is arranged through the installation hole.
5. A transfusion tube according to any one of claims 1-4, characterized in that: The base (701) is elliptical. The clamping seats (702) are convexly arranged on the left and right sides of the inner wall of the base (701). The size of the jack (703) matches the size of the infusion tube body (1). A fixing notch is arranged on one side of the outer wall of the base (701).