Urethral catheter

Abstract

The utility model relates to the technical field of medical instruments, in particular to a catheter which is provided with a catheter body, a balloon cavity is formed in the end of the catheter body, a balloon channel is formed in the side wall of the catheter body and communicated with the balloon cavity, a side drainage opening is formed in the side face of the catheter body, and the position, close to the side drainage opening, of the balloon cavity is bonded to the catheter body. Due to the fact that the position, close to the side face drainage opening, of the balloon cavity is bonded with the tube body, the position cannot expand and deform and is tightly attached to the tube body, the balloon cavity forms the balloon groove in the full state, the situation that the balloon cavity blocks the side face drainage opening in the inflated state is avoided, and urine is prevented from remaining at the bottom of the bladder. The bacteria breeding environment is reduced, and the infection risk is reduced; compared with a multi-balloon unit, one balloon cavity and one balloon channel are arranged, so that the structure of the catheter is greatly simplified, the manufacturing and processing steps are reduced, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a urinary catheter. Background Art

[0002] A urinary catheter is a medical device mainly used to help patients who cannot urinate normally drain urine from the bladder to the outside of the body. It is usually made of a soft biocompatible material such as latex or silicone, and is designed with a drainage cavity and a retaining element (such as a balloon) to ensure smooth urine drainage and stable fixation of the catheter.

[0003] Currently, a common urinary catheter on the market is provided with a balloon at its end. As Figure 1 shown, during use, the tube body 1 is inserted into the bladder, and after the balloon cavity 2 is inflated or filled with water and fixed, there is a distance of 3-5 cm between the drainage hole at the end of the tube body 1 and the bladder bottom, and there is a balloon in between. There is always a part of urine continuously remaining at the bottom of the bladder, which is likely to breed bacteria and cause inflammation. To solve the above problems, the patent number is: ZL202280002229.1, and the patent name is: A Separated Tip Urinary Catheter with a Urine Drainage Method Utilizing Balloon Expansion, an invention patent under review. This patent uses multiple expandable balloons or a single expandable central balloon to perform the retaining function. After the balloon element expands, a communication channel is exposed between the bladder and the central cavity of the shaft, and finally urine drainage is generated.

[0004] However, this structure is relatively complex. Especially when two balloons are set, not only two independent valve cavities need to be provided inside the tube body to respectively control the inflation and deflation of the two balloons, but also two inflation ports need to be equipped to inject or discharge liquid into the balloons, which puts higher requirements on the product precision and also increases the difficulty of production and manufacturing. Summary of the Invention

[0005] To solve the above problems, the present application provides a urinary catheter, which is provided with a tube body. A balloon cavity is provided at the end of the tube body. A balloon channel is provided in the side wall of the tube body. The balloon channel is communicated with the balloon cavity. A side drainage port is provided on the side surface of the tube body. The balloon cavity is bonded to the tube body near the side drainage port, and an airbag groove is formed in the filled state.

[0006] In one embodiment, when the balloon cavity is in the filled state, the end of the tube body is lower than the end of the balloon cavity.

[0007] In one embodiment, the balloon cavity is made of a polymer material. The side wall of the balloon cavity is flush with the side wall of the tube body in the unfilled state, and the balloon cavity is communicated along the circumferential direction of the tube body.

[0008] In one embodiment, the end of the tube body is provided with an opening.

[0009] In one embodiment, there are two side drainage openings, which are oppositely arranged on both sides of the tube body respectively.

[0010] In one embodiment, scale lines are provided on the tube body.

[0011] The beneficial effects of the present utility model are as follows:

[0012] A urinary catheter is provided with a tube body. A balloon cavity and a balloon channel are arranged at the end of the tube body. A side drainage opening is arranged on the side of the tube body. The balloon cavity is bonded to the tube body near the side drainage opening, and an airbag groove is formed in the filled state. By providing the balloon cavity, the position of the tube body in the urethra is ensured to be stable, and it is prevented from being displaced due to the movement of the patient. Since the balloon cavity is in contact with the bladder wall, the stimulation and friction of the tube body on the surrounding tissues are reduced, thereby reducing the discomfort of the patient; since the balloon cavity is bonded to the tube body near the side drainage opening, this part cannot expand and deform and is closely attached to the tube body, so that an airbag groove is formed at this part in the filled state of the balloon cavity, preventing the balloon cavity from blocking the side drainage opening in the inflated state, ensuring the smoothness of drainage, ensuring that urine can be completely emptied from the side drainage opening smoothly, avoiding the residue of urine at the bottom of the bladder, reducing the environment for bacteria to breed, and reducing the risk of infection; compared with the multi-balloon unit, setting one balloon cavity and one balloon channel greatly simplifies the structure of the urinary catheter, reduces the manufacturing and processing steps, and reduces the production cost. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the prior art;

[0014] Figure 2 It is a schematic structural diagram of the present utility model;

[0015] Figure 3 It is a cross-sectional view of the tube body;

[0016] Figure 4 It is a cross-sectional view of the present application in the use state;

[0017] Symbol description in the figure:

[0018] 1. Tube body;

[0019] 2. Balloon cavity;

[0020] 3. Balloon channel;

[0021] 4. Side drainage opening;

[0022] 5. Airbag groove. Detailed Embodiments

[0023] To make the technical problems, technical solutions and beneficial effects to be solved by this application more clear and understandable, the following further details this application in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0024] It should be noted that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality" means two or more unless otherwise specifically defined.

[0025] As Figure 2-3 shown, a urinary catheter is provided with a tube body 1. A balloon cavity 2 is provided at the end of the tube body 1. A balloon channel 3 is provided in the side wall of the tube body 1. The balloon channel 3 communicates with the balloon cavity 2. A side drainage port 4 is provided on the side of the tube body 1. The balloon cavity 2 is bonded to the tube body 1 near the side drainage port 4, and an airbag groove 5 is formed in the filled state.

[0026] Specifically, during use, first insert the tube body 1 into the urethra until the balloon cavity 2 is placed in the bladder. Inject liquid or air into the balloon cavity 2 through the balloon channel 3. As the liquid or gas is injected, the balloon cavity 2 gradually expands, and its outer wall closely adheres to the bladder wall, thereby realizing the fixation of the tube body 1. By providing the balloon cavity 2, the position of the tube body 1 in the urethra is ensured to be stable, and it is avoided that it is displaced due to the movement of the patient. Since the balloon cavity 2 adheres to the bladder wall, the stimulation and friction of the tube body 1 on the surrounding tissues are reduced, thereby reducing the discomfort of the patient. Since the balloon cavity 2 is bonded to the tube body 1 near the side drainage port 4, this part cannot expand and deform and closely adheres to the tube body 1, so that an airbag groove 5 is formed here in the filled state of the balloon cavity 2, avoiding the balloon cavity 2 blocking the side drainage port 4 in the inflated state, ensuring the smoothness of drainage, ensuring that urine can be smoothly emptied from the side drainage port 4 completely, avoiding the residue of urine at the bottom of the bladder, reducing the environment for bacteria to breed, and reducing the risk of infection; compared with a multi-balloon unit, providing one balloon cavity 2 and one balloon channel 3 greatly simplifies the structure of the urinary catheter, reduces the manufacturing and processing steps, and reduces the production cost.

[0027] As Figure 4 shown, when the balloon cavity 2 is in the filled state, the end of the tube body 1 is lower than the end of the balloon cavity 2.

[0028] Specifically, when the balloon cavity 2 is in a filled state, the end of the tube body 1 is lower than the end of the balloon cavity 2, avoiding the tip of the tube body 1 from touching the bladder wall, reducing the risk of bladder wall injury caused by friction or collision between the end of the tube body 1 and the bladder wall, and playing a protective role.

[0029] As Figure 3 shown, the balloon cavity 2 is made of a polymer material. When the balloon cavity 2 is in an unfilled state, the side wall of the balloon cavity 2 is flush with the side wall of the tube body 1, and the balloon cavity 2 communicates circumferentially along the tube body 1.

[0030] Specifically, the balloon cavity 2 is made of a polymer material to ensure that the balloon cavity 2 can maintain excellent performance and reliability in both filled and unfilled states. In the unfilled state, the side wall of the balloon cavity 2 is flush with the side wall of the tube body 1, making the insertion of the tube body 1 smoother. The circumferential communication design of the balloon cavity 2 enables the complete expansion of the balloon cavity 2 through a single balloon channel 3, which not only simplifies the structure of the catheter, reduces the manufacturing difficulty, but also facilitates operation and ensures the uniformity of the balloon cavity 2 during expansion.

[0031] As Figure 4 shown, in order to improve the urination efficiency, the end of the tube body 1 is provided with an opening.

[0032] As Figure 4 shown, there are two side drainage openings 4, which are respectively arranged oppositely on both sides of the tube body 1.

[0033] Specifically, by providing two side drainage openings 4, even if one of the side drainage openings 4 is blocked due to some reason (such as blood clots, stones, etc.), the other side drainage opening 4 can still work normally, ensuring the smooth discharge of urine, reducing the risk of complications caused by drainage opening blockage, reducing the retention time of urine in the bladder, and reducing the risk of infection.

[0034] As Figure 2 shown, a scale line (not shown in the figure) is provided on the tube body 1.

[0035] Specifically, the scale line enables medical staff to more accurately master the insertion depth of the tube body 1 into the urethra or bladder, ensure the correct placement of the catheter, precisely control the insertion depth and position of the tube body 1, and reduce the risk of complications caused by improper use of the catheter.

[0036] The beneficial effects of the present application compared with the prior art:

[0037] A urinary catheter is provided with a tube body 1. A balloon cavity 2 and a balloon channel 3 are arranged at the end of the tube body 1. The balloon channel 3 is communicated with the balloon cavity 2. A side drainage opening 4 is arranged on the side surface of the tube body 1. The balloon cavity 2 is adhered to the tube body 1 near the side drainage opening 4, and an airbag groove 5 is formed in the filled state. By providing the balloon cavity 2, the position of the tube body 1 in the urethra is ensured to be stable, and its displacement due to the movement of the patient is avoided. Since the balloon cavity 2 is attached to the bladder wall, the irritation and friction of the tube body 1 on the surrounding tissues are reduced, thereby reducing the discomfort of the patient. Since the balloon cavity 2 is adhered to the tube body 1 near the side drainage opening 4, this part cannot expand and deform and is closely attached to the tube body 1, so that an airbag groove 5 is formed at this position in the balloon cavity 2 in the filled state, avoiding the balloon cavity 2 blocking the side drainage opening 4 in the inflated state, ensuring the smoothness of drainage, ensuring that urine can be smoothly emptied from the side drainage opening 4 completely, avoiding the residue of urine at the bottom of the bladder, reducing the environment for bacteria to breed, and reducing the risk of infection; compared with the multi-balloon unit, providing one balloon cavity 2 and one balloon channel 3 greatly simplifies the structure of the urinary catheter, reduces the manufacturing and processing steps, and reduces the production cost. When the balloon cavity 2 is in the filled state, the end of the tube body 1 is lower than the end of the balloon cavity 2, avoiding the tip of the tube body 1 touching the bladder wall, reducing the risk of bladder wall injury caused by the friction or collision between the end of the tube body 1 and the bladder wall, and playing a protective role.

[0038] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0039] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can also be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Claims

1. A urinary catheter is provided with a tube body (1), a balloon cavity (2) is arranged at the end of the tube body (1), a balloon channel (3) is arranged in the side wall of the tube body (1), and the balloon channel (3) is communicated with the balloon cavity (2), and it is characterized in that, A side drainage opening (4) is provided on the side surface of the tube body (1), and the balloon cavity (2) is bonded to the tube body (1) near the side drainage opening (4), and an airbag groove (5) is formed in the inflated state.

2. The catheter according to claim 1, wherein When the balloon cavity (2) is in the inflated state, the end of the tube body (1) is lower than the end of the balloon cavity (2).

3. A urinary catheter according to claim 1, characterized in that, The balloon cavity (2) is made of a polymer material. When the balloon cavity (2) is in the non-inflated state, the side wall of the balloon cavity (2) is flush with the side wall of the tube body (1), and the balloon cavity (2) communicates along the circumferential direction of the tube body (1).

4. A urinary catheter according to claim 1, characterized in that, The end of the tube body (1) is provided with an opening.

5. A urinary catheter according to claim 1, characterized in that, There are two side drainage openings (4), which are respectively arranged oppositely on both sides of the tube body (1).

6. A urinary catheter according to claim 1, characterized in that, Scale lines are provided on the tube body (1).

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