Double-cavity urinary catheter with positive pressure connector

Abstract

The utility model relates to the technical field of medical instruments, in particular to a double-cavity urinary catheter with a positive-pressure connector, which comprises a urinary catheter, a drainage tube and a breather tube are arranged at the tail end of the urinary catheter in a forked manner, a flushing branch tube is arranged on the drainage tube, and the positive-pressure connector is arranged at the tail end of the flushing branch tube; a sealing cover is arranged on the positive pressure connector and connected with the positive pressure connector through a connecting structure. A reinforcing fastener can be arranged at the bifurcated section of the catheter, so that the phenomenon that the catheter is bent at the bifurcated section due to the fact that the drainage tube with the weight increased due to the additional arrangement of the positive pressure connector is influenced by gravity is avoided, and the situation that the flushing and drainage effects are influenced due to the fact that a tube cavity is narrow due to bending is prevented; according to the utility model, the mode that the positive pressure connector is connected with the infusion tube replaces the traditional needle puncture infusion mode to wash the bladder, so that the catheter is prevented from being damaged, and the risk that medical personnel are injured by a needle is also prevented from the source.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a double-lumen urinary catheter with a positive pressure connector. Background Technology

[0002] Bladder irrigation is a commonly used clinical medical procedure. Its purpose is to maintain unobstructed urine drainage in patients with indwelling urinary catheters, remove blood clots, mucus, bacteria and other foreign bodies from the bladder, treat certain bladder diseases such as cystitis and bladder tumors, and differentiate between upper and lower urinary tract infections. Bladder irrigation uses a urinary catheter to infuse a solution into the patient's bladder, and then uses the siphon principle to drain the infused liquid out, thereby achieving the purpose of rinsing the bladder.

[0003] Currently, the main clinical method for bladder irrigation relies on the indwelling urinary catheter in the patient's body. The irrigation solution is injected through the puncture in the drainage lumen of the urinary catheter. First, repeated punctures and injections of the urinary catheter can easily damage the catheter, leading to the risk of leakage. Frequent catheter changes also cause more pain for the patient. Second, because the urinary catheter has a small diameter and strong elasticity, puncturing the catheter is difficult, and medical staff are very likely to be pricked during the puncture process. Utility Model Content

[0004] The purpose of this invention is to provide a double-lumen urinary catheter with a positive pressure connector that replaces puncture injection for bladder irrigation by using a positive pressure connector connection.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A double-lumen urinary catheter with a positive pressure connector includes a urinary catheter, the end of which is divided into a drainage tube and a ventilation tube. The drainage tube is connected to a drainage bag, and the ventilation tube is connected to an air balloon. A flushing branch is provided on the side wall of the drainage tube, and a positive pressure connector is provided at the end of the flushing branch.

[0007] Preferably, the interface of the positive pressure connector is provided with an external thread, and a cover is provided to cooperate with the positive pressure connector; the cover is connected to the positive pressure connector through a connecting structure.

[0008] Preferably, the connection structure includes a connecting ring, which is fixedly sleeved on the outside of the positive pressure connector; a connector is provided on the connecting ring, and the other end of the connector is rotatably connected to the top of the outer side of the cover.

[0009] Preferably, the connector includes at least one of a connecting rope, a connecting chain, or a flexible connecting piece.

[0010] Preferably, a reinforcing fastener is provided at the bifurcation end of the catheter, the reinforcing fastener including a pair of Y-shaped fixing plates; the Y-shaped fixing plates are provided with fixing cavities that cooperate with the catheter, drainage tube and ventilation tube, and fixing buckles are provided at the edges of the Y-shaped fixing plates.

[0011] The beneficial effects of this utility model include:

[0012] This invention uses a positive pressure connector instead of needle puncture for bladder irrigation. Based on the traditional double-lumen catheter structure, an irrigation branch is branched off from the original drainage lumen, and a positive pressure connector is installed on the irrigation branch. The positive pressure connector can be directly connected to the infusion tube for irrigation, avoiding the use of needles and eliminating the risk of needlestick injury to medical staff. At the same time, since punctures are avoided in the catheter, there is no risk of damage to the catheter. It can be reused without worrying about the risk of catheter damage, reducing the pain of catheter replacement for patients.

[0013] This invention features a cap at the positive pressure connector. The cap provides protection when the positive pressure connector is not in use, preventing it from being contaminated by the external environment and thus avoiding urinary tract infections during bladder irrigation. The cap is connected to the positive pressure connector via a connecting structure, preventing it from being lost.

[0014] This invention also includes a reinforcing fastener at the bifurcation of the catheter, which reinforces the shape of the bifurcation. Because this invention adds a positive pressure connector to the drainage lumen, and catheters are typically made of elastic, soft materials such as silicone, the weight of the positive pressure connector can easily cause the tube to bend during actual use, affecting the flushing and drainage effect. By adding a reinforcing fastener at the bend, the narrowing of the catheter at the easily bendable bifurcation point can be effectively prevented, ensuring the effectiveness of flushing and drainage. Attached Figure Description

[0015] Figure 1 This is a front view of Embodiment 1 of this application;

[0016] Figure 2 This is a front view of Embodiment 1 of this application after the cover has been opened;

[0017] Figure 3 This is a front view of Embodiment 4 of this application;

[0018] Figure 4 This is a schematic diagram of the reinforcing fastener structure of Embodiment 4 of this application.

[0019] In the diagram: 1. Urinary catheter; 2. Ventilation tube; 21. Balloon interface; 3. Drainage tube; 4. Positive pressure connector; 5. Cap; 51. Connecting ring; 6. Reinforcing fastener; 61. Fixing buckle. Detailed Implementation

[0020] Example 1

[0021] The following is a further explanation of the present invention in conjunction with specific embodiments, such as... Figure 1 As shown, this embodiment is a double-lumen urinary catheter with a positive pressure connector, mainly including a urinary catheter 1. A three-way branch structure is provided at the end of the urinary catheter 1, which is connected to a ventilation tube 2 and a drainage tube 3 respectively. The end of the ventilation tube 2 is provided with an airbag interface 21, which can be connected to an airbag to inflate the urinary catheter 1 and prevent it from falling off when needed. The end of the drainage tube 3 is connected to a drainage bag, which can pass the fluid drained from the urinary catheter 1 into the drainage bag for collection.

[0022] An irrigation branch is provided on the side wall of the drainage tube 3, and a positive pressure connector 4 is provided at the end of the irrigation branch. The positive pressure connector 4 can be connected to the connector on the infusion tube. When bladder irrigation is required, the infusion tube can be connected to the drainage tube 3 through the positive pressure connector 4, and the irrigation solution can be injected into the patient's bladder through the urinary catheter 1 for bladder irrigation.

[0023] like Figure 1 and Figure 2 As shown, an external thread is provided at the interface of the positive pressure connector 4, and a cover 5 is provided to cooperate with it; the inner side of the cover 5 is provided with an internal thread, which can be tightened and sealed with the external thread of the positive pressure connector 4; a sealing ring and disinfection cotton can also be provided on the inner bottom surface of the cover 5 to further improve its sealing performance and disinfection performance, and prevent the positive pressure connector 4 from being contaminated by external viruses, bacteria and other contaminants.

[0024] A connecting ring 51 is sleeved on the outside of the positive pressure connector 4, and a connector is provided on the outer surface of the connecting ring 51. In this embodiment, the connector is an elastic connecting piece, which can be made of elastic materials such as plastic or silicone. The end of the elastic connecting piece is rotatably connected to the center position of the top of the outer side of the cover 5, so that the cover 5 can rotate around the axis relative to the connector, which facilitates its screwing into the interface thread of the positive pressure connector 4.

[0025] In practical use, this embodiment can be used like a regular double-lumen catheter when bladder irrigation is not required. When bladder irrigation is required, rotate the cap 5 to open the interface of the positive pressure connector 4, and then connect the infusion tube for irrigation to the irrigation branch tube through the positive pressure connector 4 to start bladder irrigation. After irrigation is completed, remove the infusion tube connected to the positive pressure connector 4, disinfect the interface of the positive pressure connector 4, and then screw the cap 5 back on to seal it.

[0026] Example 2

[0027] The difference between this embodiment and embodiment 1 is that the connector in this embodiment is a connecting chain. One end of the connecting chain is fixedly connected to the connecting ring 51, and the other end is rotatably connected to the center position of the top of the outer side of the cover 5.

[0028] Example 3

[0029] The difference between this embodiment and embodiment 2 is that the connector in this embodiment is a connecting rope. One end of the connecting rope is fixedly connected to the connecting ring 51, and the other end is rotatably connected to the center position of the top of the outer side of the cover 5.

[0030] Example 4

[0031] The difference between this embodiment and embodiment 3 is that, as Figure 3 As shown, in this embodiment, a reinforcing fastener 6 is provided at the bifurcation of the catheter 1.

[0032] The specific structure of the reinforcing fastener 6 is as follows: Figure 4 As shown, it includes a pair of symmetrically arranged fastening plates, on which a semi-cylindrical groove is provided to cooperate with the bifurcation of the catheter 1; when the two fastening plates are mirror-fastened together, the semi-cylindrical groove will form a through hole structure that cooperates with the catheter 1, the ventilation tube 2 and the drainage tube 3 respectively. The catheter 1, the ventilation tube 2 and the drainage tube 3 can be fixed in the through hole to prevent their shape from being deformed due to gravity or other reasons, which would lead to narrowing or blockage of the lumen.

[0033] In this embodiment, four fixing buckles 61 are provided at the edge of the fastener plate; the inner side of the fixing buckle 61 is provided with a mirror-symmetrical buckle structure. When the two fastener plates are mirror-fastened together, the buckle structures on the inner side of the opposite pair of fixing buckles 61 will cooperate to fix the two fastener plates together as one.

[0034] In this embodiment, the catheter 1, ventilation tube 2, and drainage tube 3 are first placed into the semi-cylindrical groove of a fastener plate for fixation. Then, another fastener plate is mirror-symmetrically fastened to the first fastener plate, aligning its groove with the four fixing buckles 61. Afterward, the four pairs of fixing buckles 61 are pinched to lock their inner buckle structures together, thus completing the installation of the fastener 6. The fastening effect of the fastener 6 prevents the soft and elastic catheter 1 from bending at the bifurcation due to gravity or other factors, which could lead to narrowing of the lumen and affect the flushing and drainage effect.

[0035] The above description is merely a further explanation of the present utility model in conjunction with specific embodiments. All descriptions made do not imply any limitation on the protection scope of the present utility model. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be determined by the protection scope of the claims.

Claims

1. A double-lumen urinary catheter with a positive pressure connector, comprising a urinary catheter, characterized in that: The catheter is divided into a drainage tube and a ventilation tube at its end. The drainage tube is connected to a drainage bag, and the ventilation tube is connected to an air balloon. A flushing branch is provided on the side wall of the drainage tube, and a positive pressure connector is provided at the end of the flushing branch. A reinforcing fastener is provided at the bifurcation of the catheter end. The reinforcing fastener includes a pair of Y-shaped fixing plates. The Y-shaped fixing plates are provided with fixing cavities that cooperate with the catheter, drainage tube, and ventilation tube. Fixing buckles are provided at the edges of the Y-shaped fixing plates.

2. The double-lumen urinary catheter with positive pressure connector according to claim 1, characterized in that: The interface of the positive pressure connector is provided with an external thread, and a cover is provided to cooperate with the positive pressure connector; the cover is connected to the positive pressure connector through a connecting structure.

3. The double-lumen urinary catheter with positive pressure connector according to claim 2, characterized in that: The connection structure includes a connecting ring, which is fixedly sleeved on the outside of the positive pressure connector; a connector is provided on the connecting ring, and the other end of the connector is rotatably connected to the top of the outer side of the cover.

4. The double-lumen urinary catheter with positive pressure connector according to claim 3, characterized in that: The connector includes at least one of a connecting rope, a connecting chain, or an elastic connecting piece.

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