A special infusion connector for vasoactive drugs

Abstract

The utility model relates to a kind of special infusion connectors of vasoactive drugs, including one liquid storage bag, at least two input connectors, an output connector and several anti-reflux valves, the liquid storage bag is equipped with liquid storage cavity, each the input connector is located the upper surface of the liquid storage bag and each the input connector is communicated with the liquid storage cavity, the communication of each the input connector and liquid storage cavity is equipped with the anti-reflux valve, the output connector is located the lower surface of the liquid storage bag and the output connector is communicated with the liquid storage cavity.The utility model has the advantages that: the volume of liquid storage bag is small and is flat sphere, greatly shorten the time of drug solution flowing through connecting device, so that drug enters human body faster, and rapid effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a special infusion connector for vasoactive drugs. Background Technology

[0002] In clinical treatment, patients often require multiple medications for simultaneous treatment or maintenance. To reduce frequent changes in medication administration equipment and facilitate differentiation of administered medications, multi-way connectors equipped with one-way valves are commonly used. Please refer to [link / reference]. Figure 1 Existing multi-port connectors use multiple Luer connectors arranged in a row, resulting in a long, narrow structure. This leads to a long flow path for medication within the connector. However, for medications requiring microinfusion pumps, the dosage is minute and the injection rate is slow, for example, only 0.5 ml / h. The long flow path of existing multi-port connectors inevitably increases the time it takes for the medication to pass through the connector itself. When applied to ICU resuscitation, this affects the onset time of medication, and the delayed onset can cause patients to miss crucial resuscitation opportunities. Taking cardiac surgeons or critically ill patients as examples, their conditions can change rapidly, making the use of vasoactive drugs crucial. In 2023, the Chinese Nursing Association released industry standards for the use of vasoactive drugs, specifying relevant regulations for the clinical operation of these medications. However, the three-way connectors, one-way valves, and other connectors used clinically have some problems: ① The large lumen capacity means that when vasoactive drugs are pumped in at low speeds, it takes a long time for the drug to enter the body; ② When two or more vasoactive drugs are used simultaneously, a small bolus injection is chosen to expedite the entry of the newly added drug, causing the drug in the infusion chamber to be pushed into the body, resulting in significant fluctuations in the patient's vital signs; ③ During bolus injection, due to the high pressure, backflow of drugs from other chambers can occur, even causing the infusion to stop, which also leads to significant fluctuations in the patient's vital signs. In summary, clinical practice lacks a micro-infusion connector that can quickly achieve the desired drug effect (drug entry into the body) and minimize interference with other vasoactive drugs during use. Summary of the Invention

[0003] To address the aforementioned problems, the purpose of this invention is to provide a dedicated infusion connector for vasoactive drugs, which shortens the drug's flow path within the connector, allowing the drug to flow into the body more quickly, take effect rapidly, and achieve the purpose of emergency treatment.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An infusion connector for vasoactive drugs includes a reservoir, at least two inlet connectors, an outlet connector, and several anti-reflux valves. The reservoir has a reservoir cavity. Each inlet connector is located on the upper surface of the reservoir and communicates with the reservoir cavity. The anti-reflux valve is located at the connection between each inlet connector and the reservoir cavity. The outlet connector is located on the lower surface of the reservoir and communicates with the reservoir cavity.

[0006] More preferably, the volume of the liquid storage chamber is 0.1 to 0.2 ml.

[0007] Even better, the reservoir has a flattened spherical structure.

[0008] More preferably, both the input and output connectors are Luer connectors.

[0009] More preferably, the number of input connectors is three.

[0010] More preferably, each of the input connectors is provided with two anti-backflow valves at the connection between the input connector and the liquid storage chamber, and the ends of the two anti-backflow valves abut together.

[0011] This utility model has the following beneficial effects:

[0012] 1. This utility model discloses a special infusion connector for vasoactive drugs, wherein the reservoir chamber in the reservoir bladder is connected to multiple input connectors, using the reservoir chamber as a common flow path for multiple drug infusion paths, thus shortening the flow path length of the drug in the connecting device. Furthermore, the reservoir bladder with its flattened spherical structure and small-volume reservoir chamber significantly reduces the flow path length and shortens the time the drug spends in the connecting device, allowing the drug to flow into the body more quickly, resulting in faster drug onset and facilitating rapid patient resuscitation.

[0013] 2. This utility model provides a special infusion connector for vasoactive drugs, which has an anti-reflux valve at the connection between the infusion connector and the reservoir, which can play a good role in preventing reflux when the infusion is stopped.

[0014] 3. The present invention provides a special infusion connector for vasoactive drugs, wherein the reservoir adopts a flattened spherical structure design, which greatly reduces the volume of the reservoir, thereby reducing the flow path length of the drug in the connecting device and shortening the time the drug flows through the connecting device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a multi-port connector in the prior art;

[0016] Figure 2 This is a front view of the present invention;

[0017] Figure 3 This is a top view of the present invention.

[0018] Explanation of reference numerals in the attached figures:

[0019] 10. Reservoir bladder; 11. Reservoir chamber; 20. Inlet connector; 30. Outlet connector; 40. Anti-reflux valve. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0021] See Figure 2 and Figure 3 A vasoactive drug infusion connector includes a reservoir 10, at least two inlet connectors 20, an outlet connector 30, and several anti-reflux valves 40. The reservoir 10 contains a reservoir cavity 11. Each inlet connector 20 is located on the upper surface of the reservoir 10 and communicates with the reservoir cavity 11. An anti-reflux valve 40 is located at the connection point between each inlet connector 20 and the reservoir cavity 11. The outlet connector 30 is located on the lower surface of the reservoir 10 and communicates with the reservoir cavity 11. The at least two inlet connectors 20 are used to connect infusion devices, such as microinfusion pumps or infusion bottles. The outlet connector 30 can be used to connect to a deep vein catheter. The anti-reflux valves 40 prevent backflow of the medication.

[0022] The reservoir 10 has a flattened spherical structure, and the reservoir cavity 11 has a volume of 0.1-0.2 ml. The flattened spherical structure and small reservoir cavity 11 significantly reduce the flow path length of the drug within the connecting device, shortening the time the drug spends in the connecting device. The drug can flow into the body more quickly, resulting in faster onset of action and facilitating rapid patient resuscitation. The flattened spherical reservoir 10 also offers the advantage of being easy to hold.

[0023] In this embodiment, there are three input connectors 20. Both the input connectors 20 and the output connectors 30 can be Luer connectors. A Luer connector is a rigid connector; compared to a universal valve, the connector in this embodiment will not bend, ensuring smooth infusion.

[0024] Two anti-reflux valves 40 are provided at the connection between each input connector 20 and the reservoir 11. The ends of the two anti-reflux valves 40 abut together, forming a V-shaped structure. When infusion is needed, the medication flows from the input connector 20 into the reservoir 11. Since the input connector 20 is on top and the reservoir 11 is below the input connector 20, the medication is pushed aside by gravity by the two anti-reflux valves 40 and flows into the reservoir 11 from the input connector 20. When infusion is stopped, the two anti-reflux valves 40 abut together, and the remaining medication in the reservoir 11 cannot pass through the anti-reflux valves 40.

[0025] The working principle of this utility model is as follows: First, connect the micro-injection pump to one of the input connectors 20, then connect the deep vein catheter to the output connector 30, then turn on the micro-injection pump, and the drug solution flows in from the input connector 20, passes through the anti-reflux valve 40, enters the reservoir 11 and flows into the deep vein catheter. A small amount of drug solution remains in the reservoir 11. Finally, the end of the deep vein catheter is inserted into the human body.

[0026] The above description is only a specific embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A dedicated infusion connector for vasoactive drugs, characterized in that: The device includes a reservoir, at least two input connectors, an output connector, and several anti-backflow valves. The reservoir has a flattened spherical structure and contains a reservoir chamber with a volume of 0.1-0.2 ml. The reservoir chamber serves as a common flow path for multiple drug input paths. Each input connector is located on the upper surface of the reservoir and communicates with the reservoir chamber. The anti-backflow valve is located at the connection point between each input connector and the reservoir chamber. The output connector is located on the lower surface of the reservoir and communicates with the reservoir chamber.

2. The infusion connector for vasoactive drugs according to claim 1, characterized in that: Both the input and output connectors are Luer connectors.

3. The infusion connector for vasoactive drugs according to claim 1, characterized in that: The number of input connectors is three.

4. The infusion connector for vasoactive drugs according to claim 1, characterized in that: Two anti-backflow valves are provided at the connection between each input connector and the liquid storage chamber, and the ends of the two anti-backflow valves abut together.

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