A surfactant administration catheter

Abstract

The utility model discloses a surface active agent dosing catheter belongs to medical instrument technical field, a surface active agent dosing catheter, including the external interface port, the external interface port one end integral mould has the connecting mouth, the connecting mouth one end is installed with the pipe body, the pipe body one end fixed and has the dosing end, the dosing end is curved outward, and with the horizontal angle of pipe body is 30 DEG, the dosing end includes the soft tip fixed and communicated in the pipe body far from the connecting mouth one end, it can through the cooperation of pipe body and curved dosing end, promote the security, accuracy and operation convenience of dosing process, effectively solve the problem that ordinary straight pipe type catheter end high hardness, angle fixed easily damage neonatal respiratory tract mucosa in the prior art, and the dosing position and angle can not be accurately controlled to lead to the uneven distribution of surface active agent, the treatment effect is influenced, simultaneously avoid the defect that the operation difficulty is big when adopting the auxiliary tool and inserts the catheter, the risk is high.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a surfactant delivery catheter. Background Technology

[0002] Surfactant delivery catheters are minimally invasive medical devices used to deliver pulmonary surfactant directly to the lungs of premature infants, primarily for the treatment of respiratory distress syndrome (RDS). Their core function is to precisely administer medication via a thin catheter while the infant is breathing spontaneously, reducing reliance on mechanical ventilation and lowering the risk of lung injury.

[0003] Based on the above, the inventors have discovered that in the prior art, when administering surfactant to neonatal respiratory distress syndrome, a common straight-tube catheter is usually used. This catheter has a high degree of rigidity at the tip and a fixed angle, which can easily damage the fragile respiratory mucosa of newborns during insertion. Furthermore, the inability to precisely control the administration position and angle leads to uneven distribution of the surfactant in the lungs, affecting the treatment effect. A few methods use Magill forceps to insert a thin catheter into the vocal cords for surfactant administration while maintaining non-invasive ventilation. This approach is generally difficult and risky, and inconvenient to use. Therefore, in view of this, the inventors have researched and improved the existing structure to provide a surfactant administration catheter with greater practical value. Utility Model Content

[0004] 1. Technical problems to be solved To address the problems existing in the prior art, the purpose of this utility model is to provide a surfactant delivery catheter. By optimizing the catheter structure design, it can improve the safety, accuracy, and ease of operation of the drug delivery process. It effectively solves the problems of high hardness of the tip of ordinary straight tube catheters, easy damage to the respiratory mucosa of newborns due to fixed angle, and uneven distribution of surfactant in the lungs and affected treatment effect due to the inability to accurately control the drug delivery position and angle. At the same time, it avoids the defects of high operation difficulty, high risk and inconvenience of using Magill forceps to assist in catheter insertion.

[0005] 2. Technical Solution To solve the above problems, the present invention adopts the following technical solution.

[0006] A surfactant delivery catheter includes an external port, one end of which is integrally formed with a connecting nozzle, one end of which is fitted with a tube body, one end of which is fixed and connected to a delivery tip, the delivery tip being bent outward and having a horizontal angle of 30° with the tube body. The drug delivery tip includes a soft tip fixed and connected to the end of the tube body away from the connecting nozzle, and one end of the soft tip is fixed and connected to an ultra-soft tip.

[0007] Furthermore, the length of the tube is 200mm, and the outer diameter of the tube is 6Fr.

[0008] Furthermore, the tube body is made of semi-rigid PEBA transparent conduit material.

[0009] Furthermore, the outer surface of the tube is marked with centimeter scale markings.

[0010] Furthermore, both the soft tip and the ultra-soft tip have black outer surfaces and lengths of 15mm and 5mm, respectively.

[0011] Furthermore, the external port is a Luer-Lok connector.

[0012] 3. Beneficial Effects Compared with existing technologies, the advantages of this utility model are: (1) This scheme, by designing the drug delivery tip to bend outward by 30°, can better adapt to the physiological curvature of the neonatal airway, making it easier for medical staff to accurately adjust the direction during intubation and reduce mechanical stimulation of the airway mucosa; while the combination design of soft tip and ultra-soft tip significantly reduces the overall hardness of the tip, and the ultra-soft tip can produce a certain deformation when in contact with the mucosa, further avoiding the risk of damage and improving the safety of the intubation process.

[0013] (2) In this scheme, by using semi-rigid PEBA transparent catheter material for the tube body, not only is the structural stability during push guaranteed, making it easy for medical staff to operate the catheter, but the transparency also allows the operator to clearly observe the flow state of the surfactant inside the tube. Combined with the centimeter scale markings on the outer surface, the insertion depth can be accurately controlled, ensuring accurate drug delivery location and helping the surfactant to be evenly distributed in the lungs, thereby improving the treatment effect. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the external port location of this utility model. Figure 3 This is a schematic diagram of the drug delivery tip structure of this utility model.

[0015] Explanation of the labels in the diagram: 1. External port; 2. Connecting nozzle; 3. Pipe body; 4. Drug delivery tip; 401, soft tip; 402, ultra-soft tip; 5. Centimeter scale markings. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] Example: Please see Figures 1-3 A surfactant delivery catheter includes an external port 1, one end of which is integrally formed with a connecting nozzle 2, and one end of the connecting nozzle 2 is fitted with a tube body 3. One end of the tube body 3 is fixed and connected to a delivery tip 4. The delivery tip 4 is bent outward and forms a horizontal angle of 30° with the tube body 3. When in use, setting the delivery tip 4 to a bent shape can not only better adapt to the physiological curvature of the neonatal airway, but also facilitate medical staff to accurately adjust the direction during intubation and reduce mechanical stimulation of the respiratory mucosa. The drug delivery tip 4 includes a soft tip 401 fixed and connected to the end of the tube body 3 away from the connecting nozzle 2. One end of the soft tip 401 is fixed and connected to an ultra-soft tip 402. During use, the soft tip 401 and the ultra-soft tip 402 utilize their own flexibility to significantly reduce the overall hardness of the tip, which can minimize the risk of tracheal damage and avoid kinking. The ultra-soft tip 402 can deform to a certain extent when it comes into contact with the mucosa, further avoiding the risk of damage and improving the safety of the intubation process.

[0018] See Figure 1 The length of tube 3 is 200mm, and the outer diameter of tube 3 is 6Fr.

[0019] See Figure 1 The tube body 3 is made of semi-rigid PEBA transparent tubing. When in use, the tube body 3 is transparent, which allows the internal surfactant to be seen. The semi-rigid nature of the tube body also means that no Magee tweezers are needed during use, making it highly mobile and easy to operate.

[0020] See Figure 1 The outer surface of the tube body 3 is marked with centimeter scale 5. When in use, the length of the tube body inserted can be indicated by the centimeter scale 5, which is convenient for medical staff to observe.

[0021] See Figure 3 Both the soft tip 401 and the ultra-soft tip 402 have black outer surfaces and lengths of 15mm and 5mm, respectively.

[0022] See Figure 2External port 1 is a Luer-Lok connector. When in use, external port 1 uses a Luer-Lok connector, which can achieve a tight connection with drug delivery devices such as syringes, effectively preventing leakage or detachment during drug delivery, simplifying the operation process, reducing the difficulty of operation for medical staff, and making the whole drug delivery process more convenient and efficient.

[0023] In use: Medical staff first connect the external port 1 to the syringe containing the surfactant via the Luer-Lok connector, ensuring a secure connection and no risk of leakage. Then, holding the tube body 3, observe the centimeter graduations 5 on the outer surface, align the administration tip 4 with the neonatal airway inlet, and gently advance the catheter using a 30° bend angle to adapt to the respiratory tract's physiological structure. During this process, the black soft tip 401 and ultra-soft tip 402 deform moderately upon contact with the mucous membrane, preventing damage. Simultaneously, the semi-rigid PEBA transparent tube body 3 allows medical staff to clearly observe the internal surfactant flow, precisely controlling the insertion depth to the preset position based on the graduations. After confirming the correct position, push the syringe plunger. The surfactant is slowly and evenly delivered to the target area of ​​the lungs via the connecting nozzle 2, tube body 3, soft tip 401, and ultra-soft tip 402. After administration, smoothly withdraw the catheter according to the graduations. The entire operation requires no Magill forceps, significantly reducing the difficulty and risk of the procedure.

[0024] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A surfactant delivery catheter, comprising an external port (1), characterized in that: One end of the external port (1) is integrally formed with a connecting nozzle (2), one end of the connecting nozzle (2) is fitted with a tube body (3), one end of the tube body (3) is fixed and connected to a drug delivery head (4), the drug delivery head (4) is bent outward and has a horizontal angle of 30° with the tube body (3); The drug delivery tip (4) includes a soft tip (401) fixed and connected to the end of the tube body (3) away from the connecting nozzle (2), and one end of the soft tip (401) is fixed and connected to an ultra-soft tip (402).

2. The surfactant delivery catheter according to claim 1, characterized in that: The length of the tube (3) is 200 mm, and the outer diameter of the tube (3) is 6 Fr.

3. The surfactant delivery catheter according to claim 1, characterized in that: The tube body (3) is made of semi-rigid PEBA transparent conduit material.

4. The surfactant delivery catheter according to claim 1, characterized in that: The outer surface of the tube (3) is marked with centimeter scale (5).

5. A surfactant delivery catheter according to claim 1, characterized in that: The outer surfaces of the soft tip (401) and the ultra-soft tip (402) are both black, and their lengths are 15 mm and 5 mm, respectively.

6. The surfactant delivery catheter according to claim 1, characterized in that: The external port (1) is a Luer-Lok connector.

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