Urethral catheter connector with Luer lock connector

Abstract

The utility model discloses a catheter connector with a Luer lock connector, and belongs to the technical field of medical auxiliary equipment. The whole body of the joint is made of polypropylene and is divided into an upper part, a middle part and a lower part, the upper part is a Luer lock interface end, the middle part is an anti-slip unfolding wing, the lower part is a pagoda head end, and limiting baffles are arranged between the unfolding wing and the pagoda head end. The bladder irrigator is suitable for being used by a patient needing bladder irrigation, simple in structure, convenient to operate and capable of reducing the difficulty of irrigation treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary equipment, in particular to a urinary catheter connector with a Luer lock interface. Background Art

[0002] A urinary catheter is a tube inserted into the bladder through the urethra to drain urine. It is a commonly used medical device in clinical practice. For patients who need bladder irrigation or medication, a three-chamber urinary catheter is often used. The three channels are used for urination, water bag filling and irrigation respectively. The irrigation chamber can be used to inject water or medication into the bladder, which is easy to operate.

[0003] During bladder instillation therapy, drugs or liquids need to be injected into the patient's bladder through the instillation cavity of the catheter. The instillation can only be successful if the connection is tight. Inadequate connection may cause liquid overflow and delay the patient's treatment process. Therefore, there are certain requirements for the operator's instillation operation. Through a suitable intermediate, one end is connected to a syringe containing instillation liquid, and the other end is connected to a catheter. The operator directly pushes the liquid in the syringe, which can reduce the difficulty of instillation therapy.

[0004] For this reason, we propose a urinary catheter connector with a Luer lock interface.

[0005] The utility model has the following technical problems:

[0006] 1. For patients receiving bladder instillation therapy, there is a lack of a urinary catheter connector as an intermediate to simultaneously connect the syringe containing the instillation solution and the urinary catheter.

[0007] 2. The catheter connector must be tightly connected to the syringe and catheter to ensure that the three will not fall off or leak during infusion treatment.

[0008] 3. Syringes are mostly made of glass, plastic, etc., while catheters are made of latex, silicone, etc. The surfaces of both are very smooth, making them difficult to connect or prone to displacement and slippage after connection. Utility Model Content

[0009] According to the technical problems raised above, a urinary catheter connector with a Luer lock interface is provided. The technical means adopted by the utility model are as follows:

[0010] The utility model discloses a urinary catheter joint with a Luer lock interface, comprising an upper Luer lock interface end, a middle portion with spread wings, and a lower portion with a pagoda head end. The urinary catheter joint is made of polypropylene, and the interior of the urinary catheter joint is a hollow cavity, which is connected with the Luer lock interface end, the spread wings and the pagoda head end, and the Luer lock interface end, the spread wings and the pagoda head end are integrally formed.

[0011] As a further improvement, the Luer lock interface end described in the utility model includes a threaded joint at the upper end and a hollow cylinder at the lower end, the threaded joint has an outer diameter range of 7.7-7.9 mm and a height of 1.0-3.0 mm, the outer diameter of the hollow cylinder is 5-7 mm and a height of 11-13 mm.

[0012] As a further improvement, the middle wing of the utility model is two raised thin sheet structures located on the same plane, the widest part of the two wing on one plane is 10.0-15.0 mm, and the thickness of each wing is 0.5-2.0 mm.

[0013] As a further improvement, the pagoda head end described in the utility model is an inverted cone with a diameter that gradually decreases from top to bottom. The pagoda head end includes a hollow cylinder and 3-5 structures with inverted trapezoidal cross-sections, and the upper diameter of each inverted trapezoidal structure is larger than the lower diameter.

[0014] As a further improvement, the pagoda head end described in the utility model has 5 sections, with heights of 5.0-7.0mm, 4.5-6.5mm, 4.0-6.0mm, 4.0-6.0mm, and 4.5-6.5mm from top to bottom, respectively. The upper diameter of each section is 0-1.5mm larger than the lower diameter. The diameter of the upper end is 7.5-9.5mm, and the diameter of the lower end is 5.0-7.0mm. From top to bottom, the lower diameter of the upper section is 0-0.6mm smaller than the upper diameter of the lower section.

[0015] As a further improvement, a limit baffle is provided between the wings and the head end of the pagoda in the utility model to limit the upward sliding of the catheter.

[0016] As a further improvement, the internal cavity described in the utility model has a diameter of 3.9-4.4 mm and a height of 45.0-65.0 mm.

[0017] Beneficial effects of the utility model:

[0018] 1. Compared with the catheter connector on the market, the longer connector makes it easier for the operator to connect the syringe and the catheter smoothly when using the connector, reducing the difficulty of operation and reducing the contamination caused by finger contact.

[0019] 2. The size of the Luer lock interface is designed to meet the national standards for Luer connectors, and can be adapted to the cone heads of most Luer lock syringes and straight syringes that meet the national standards. Regardless of whether the syringe has a Luer connector or not, the cone head can be tightly connected to the Luer lock interface of the catheter connector to avoid leakage or even falling off during injection.

[0020] 3. The catheter connector is made with two wings. The protruding wings can effectively prevent slipping when connecting the syringe and the catheter. The operator is used to tighten the syringe and the catheter to ensure a tight connection between the three.

[0021] 4. The lower pagoda head of the catheter connector is shaped like an inverted pagoda. The inverted cone design with a diameter that gradually decreases from top to bottom can adapt to most catheter perfusion cavities of different materials and sizes on the market, and is universal. Although the pagoda head is an inverted cone, the lower diameter of the upper section is smaller than the upper diameter of the lower section, which forms a position that makes it difficult for the catheter to fall off after connection, preventing the catheter from slipping off the catheter connector during perfusion.

[0022] 5. A limit baffle with a width greater than the pagoda head end is designed between the wings of the catheter connector and the pagoda head end. After the larger-caliber catheter perfusion cavity is connected to the catheter connector, it will completely wrap the entire pagoda head end. At this time, the limit baffle can prevent the catheter perfusion cavity from continuing to move upward, thereby playing a fixing role.

[0023] 6. The catheter connector is made of polypropylene, which is resistant to chemical corrosion. The connector is translucent, so the operator can observe the liquid flowing in the connector, making it convenient for the operator to always pay attention to the perfusion situation.

[0024] The connector is suitable for patients who need bladder instillation. The unique design of the connector allows the syringe and the catheter to be tightly connected to it. The connector has a simple structure and is easy to operate, which reduces the difficulty of bladder instillation treatment operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 It is a schematic side view of the structure of the utility model;

[0027] Figure 3 It is a schematic cross-sectional view of the structure of the utility model.

[0028] In the figure: 1- Luer lock interface end, 2- wings, 3- pagoda head end, 4- hollow cavity, 5- threaded joint, 6- limit baffle. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0030] Figure 1 It is a schematic diagram of the structure of the utility model; Figure 3 It is a schematic cross-sectional view of the structure of the utility model.

[0031] The utility model discloses a urinary catheter connector with a Luer lock interface, comprising an upper Luer lock interface end 1, a middle wing 2, and a lower pagoda head end 3. The urinary catheter connector is made of polypropylene and is translucent. The interior of the urinary catheter connector is a hollow cavity 4, which connects the Luer lock interface end 1, the wing 2 and the pagoda head end 3 to ensure smooth passage of liquid. The diameter of the internal cavity is 3.9-4.4 mm and the height is 45.0-65.0 mm.

[0032] The Luer lock interface end 1, the wing 2 and the pagoda head end 3 are integrally formed. The pagoda head end 3 is connected to the urinary catheter perfusion cavity.

[0033] The Luer lock interface end 1 includes a threaded connector 5 at the upper end and a hollow cylinder at the lower end, wherein the threaded connector 5 has an outer diameter of 7.7-7.9 mm and a height of 1.0-3.0 mm, and the outer diameter of the hollow cylinder is 5-7 mm and a height of 11-13 mm. The threaded connector 5 is connected to the cone end of the syringe.

[0034] Figure 2 The utility model is a side view of the structure; the middle wing 2 is a two-piece raised thin sheet structure located on the same plane, the widest part of the two wings 2 on one plane is 10.0-15.0mm, and the thickness of each wing 2 is 0.5-2.0mm. It plays a role in fixing the catheter joint and preventing slipping when manually connecting the syringe and the catheter.

[0035] The pagoda head end 3 is an inverted cone with a diameter that gradually decreases from top to bottom. The pagoda head end includes a hollow cylinder and 3-5 inverted trapezoidal structures in cross section, and the upper diameter of each inverted trapezoidal structure is greater than the lower diameter. In this embodiment, the pagoda head end 3 has 5 sections, and the heights are 5.0-7.0mm, 4.5-6.5mm, 4.0-6.0mm, 4.0-6.0mm, and 4.5-6.5mm from top to bottom, respectively. The upper diameter of each section is greater than the lower diameter by 0-1.5mm, the diameter of the uppermost end is 7.5-9.5mm, and the diameter of the lowermost end is 5.0-7.0mm. From top to bottom, the lower diameter of the upper section is less than the upper diameter of the lower section by 0-0.6mm.

[0036] A limit baffle 6 is provided below the wings 2 to limit the upward movement of the connected urinary catheter.

[0037] The use of a urinary catheter connector with a Luer lock interface provided by the utility model is as follows:

[0038] The first step is to hold the wing 2 of the syringe and the catheter connector with both hands respectively, and accurately insert the cone end of the syringe into the Luer lock interface end 1 of the catheter connector. For syringes with Luer connectors, tighten the threaded connector 5 clockwise until there is no gap.

[0039] In the second step, hold the syringe and the catheter perfusion cavity with both hands respectively, insert the pagoda head end 3 of the catheter connector into the catheter perfusion cavity until there is no gap, and the catheter perfusion cavity at most touches the limit baffle 6.

[0040] Step 3: After the urine is emptied, slowly inject the solution in the syringe into the bladder through the hollow cavity 4. During the injection, the injection status can be observed through the translucent catheter connector.

[0041] Step 4: After the infusion is completed, hold the wings 2 of the catheter connector and the catheter infusion cavity with both hands, and rotate the pagoda head end 3 of the catheter connector out of the catheter infusion cavity in a clockwise direction.

[0042] The above shows and describes the technical solutions, purposes and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A urinary catheter connector with a Luer lock interface, characterized in that: The invention comprises an upper Luer lock interface end (1), a middle portion of spread wings (2), and a lower portion of a pagoda head end (3). The catheter connector is made of polypropylene. The interior of the catheter connector is a hollow cavity (4). The hollow cavity (4) connects the Luer lock interface end (1), the spread wings (2) and the pagoda head end (3). The Luer lock interface end (1), the spread wings (2) and the pagoda head end (3) are integrally formed.

2. The urinary catheter connector with a Luer lock interface according to claim 1, characterized in that: The Luer lock interface end (1) comprises a threaded connector (5) at the upper end and a hollow cylinder at the lower end, wherein the threaded connector (5) has an outer diameter ranging from 7.7 to 7.9 mm and a height ranging from 1.0 to 3.0 mm, and the outer diameter of the hollow cylinder is 5 to 7 mm and a height ranging from 11 to 13 mm.

3. The urinary catheter connector with a Luer lock interface according to claim 1, characterized in that: The middle wing (2) is two raised thin sheet structures located on the same plane, the widest part of the two wings (2) on the same plane is 10.0-15.0 mm wide, and the thickness of each wing (2) is 0.5-2.0 mm.

4. The urinary catheter connector with a Luer lock interface according to claim 1, characterized in that: The pagoda head end (3) is an inverted cone with a diameter that gradually decreases from top to bottom. The pagoda head end (3) includes a hollow cylinder and 3-5 structures with inverted trapezoidal cross-sections. The upper diameter of each inverted trapezoidal structure is greater than the lower diameter.

5. The urinary catheter connector with Luer lock interface according to claim 4, characterized in that: The pagoda head end (3) has 5 sections, and the heights from top to bottom are 5.0-7.0mm, 4.5-6.5mm, 4.0-6.0mm, 4.0-6.0mm, and 4.5-6.5mm respectively. The upper diameter of each section is 0-1.5mm larger than the lower diameter. The diameter of the uppermost end is 7.5-9.5mm, and the diameter of the lowermost end is 5.0-7.0mm. From top to bottom, the lower diameter of the upper section is 0-0.6mm smaller than the upper diameter of the lower section.

6. The urinary catheter connector with a Luer lock interface according to claim 1, 2, 3, 4 or 5, characterized in that: A limit baffle (6) is also provided between the wings (2) and the pagoda head (3) to limit the upward sliding of the urinary catheter.

7. The urinary catheter connector with a Luer lock interface according to claim 1, characterized in that: The inner cavity has a diameter of 3.9-4.4 mm and a height of 45.0-65.0 mm.

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