Double flow polyurethane catheter

Abstract

The utility model discloses a double -stream gathers source catheter, including the catheter main part, is equipped with the drainage cavity, the inflation cavity from inside to outside in the catheter main part, the outer periphery of catheter main part front end is equipped with the air bag, and the air bag is the funnel type of big end in front, small end behind, and the air bag small end communicates the inflation cavity, and the outer surface is combined with bladder triangle area after inflating, and the catheter main part front end is equipped with the first urine inlet, and the catheter main part inboard close to the air bag small end is equipped with the second urine inlet, and the first urine inlet, the second urine inlet communicates the drainage cavity. The utility model discloses air bag shape and human body bladder structure are more combined, and the fixing effect of catheter is better, and urine is not easy to leak, and the collection of urine is also more sufficient.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a dual-flow polymer-source urinary catheter. Background Technology

[0002] With the widespread clinical use of indwelling balloon catheters, complications have gradually emerged, especially in elderly female patients. Due to physiological aging, elderly women experience atrophy of the urethral sphincter muscles, and postmenopausal women experience a decline in estrogen levels, leading to thinning of the pelvic floor and surrounding tissues at the bladder outlet. This reduces urethral contractility and pressure, making them more prone to urinary leakage. Leakage during catheterization not only reduces patient comfort and increases the risk of pressure injuries and urinary tract infections, but also affects urine output statistics, delaying the observation and treatment of the condition. Traditional catheters rely on a balloon for fixation, but the balloon's spherical shape does not conform adequately to the bladder, resulting in unstable catheter fixation and leading to urine leakage and urinary tract infections. Utility Model Content

[0003] This invention provides a dual-flow polymer-source urinary catheter with a balloon shape that fits the structure of the human bladder better, resulting in better catheter fixation, less leakage, and more complete urine collection.

[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0005] A dual-flow polymer-source urinary catheter includes a catheter body, with a drainage chamber and an inflation chamber arranged from the inside out inside the catheter body. An air balloon is provided on the outer periphery of the front end of the catheter body. The air balloon is funnel-shaped with the larger end in front and the smaller end behind. The smaller end of the air balloon is connected to the inflation chamber. A first urine inlet is provided at the front end of the catheter body, and a second urine inlet is provided on the inner side of the catheter body near the smaller end of the air balloon. The first urine inlet and the second urine inlet are connected to the drainage chamber.

[0006] Furthermore, the airbag is made of silicone rubber.

[0007] Furthermore, the surface of the airbag is coated with a silver ion hydrogel coating.

[0008] Furthermore, there are multiple first inlet ports, evenly arranged along the side wall of the catheter body, and multiple second inlet ports, evenly arranged along the side wall of the catheter body.

[0009] Furthermore, the front end of the catheter body is closed and rounded and smooth.

[0010] Furthermore, the inner wall of the drainage cavity is provided with spiral grooves.

[0011] Furthermore, the edge of the larger end of the airbag is rounded and smooth.

[0012] Furthermore, the edge of the larger end of the balloon is lower than the ureteral orifice.

[0013] Furthermore, the rear end of the catheter body is provided with a drain pipe and an inflation pipe, the drain pipe being connected to the drainage chamber and the inflation pipe being connected to the inflation chamber.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. The positioning airbag of this utility model is funnel-shaped. After inflation, it fits the human bladder structure better, the pressure on the bladder wall is more dispersed, the catheter is better fixed, and it is less likely to leak urine.

[0016] 2. This utility model is provided with a first urine inlet and a second urine inlet. The second urine inlet is located in the recess of the air bladder, which can discharge the urine collected inside the air bladder and prevent urine accumulation.

[0017] 3. The surface of the airbag of this utility model is coated with a silver ion hydrogel, which has good water retention and lubrication, can reduce the pressure and irritation of the airbag on the bladder, and improve comfort. Silver ions also have good antibacterial properties and good biocompatibility, which can play an anti-infection role. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a cross-sectional view of the front structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the present invention inside the bladder;

[0021] In the diagram: 1-Catheter body, 11-Drainage cavity, 12-Inflation cavity, 13-First urinary inlet, 14-Second urinary inlet, 2-Balloon, 3-Bladder body, 4-Bladder trigone, 5-Urethra, 6-Ureteral orifice. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] In the description of the embodiments of this application, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this application is usually placed in when in use, or the orientation or positional relationship that is commonly understood by those skilled in the art. It is only for the convenience of describing this application and simplifying the description, and is not intended to 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, it should not be construed as a limitation of this application.

[0024] In the description of the embodiments of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," and "connect" 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] As shown in the figure, a dual-flow converging-source urinary catheter includes a catheter body 1. The catheter body 1 has a drainage chamber 11 and an inflation chamber 12 arranged from the inside out. The front end of the catheter body 1 is the insertion end, and the rear end is the connection end. The rear end of the catheter body 1 has a drain tube and an inflation tube. The drain tube connects to the drainage chamber 11, and the inflation tube connects to the inflation chamber 12. An air balloon 2 is located on the outer periphery of the front end of the catheter body 1. The air balloon 2 is funnel-shaped with the larger end in front and the smaller end behind. The smaller end of the air balloon 2 connects to the inflation chamber 12. After inflation, its outer surface fits tightly against the trigone of the bladder 4 to prevent leakage from both sides. When the catheter is inserted into the bladder body 3 along the urethra 5, the edge of the larger end of the air balloon 2 is rounded and smooth and lower than the ureteral orifice 6, allowing urine to collect smoothly in the inner recess of the air balloon 2. The catheter body 1 has a closed and smooth front end, and multiple first urine inlet holes 13 are evenly distributed on the side wall. Multiple second urine inlet holes 14 are evenly distributed on the inner side of the small end of the catheter body 1 near the balloon 2. The first urine inlet holes 13 and the second urine inlet holes 14 are connected to the drainage cavity 11. The first urine inlet hole 13 is the main drainage hole, which drains most of the urine, while the second urine inlet hole 14 can drain the urine that has collected at the bottom of the balloon 2. The dual-channel drainage structure improves the drainage effect and reduces urine accumulation.

[0026] The airbag 2 is made of silicone rubber with a silver ion hydrogel coating on the surface. It has good water retention and lubrication, which can reduce the pressure and irritation of the airbag on the bladder and greatly increase comfort. Silver ions also have good antibacterial properties and good biocompatibility, which can play an anti-infection role.

[0027] The inner wall of the drainage cavity 11 is provided with spiral grooves to guide the urine to flow in a specific direction, forming eddies and shear forces, thereby effectively flushing the channel and preventing blockage.

[0028] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A dual-flow polymer-source urinary catheter, characterized in that: The catheter includes a main body (1), and a drainage chamber (11) and an inflation chamber (12) are provided inside the main body (1) from the inside to the outside. An air bladder (2) is provided on the outer periphery of the front end of the main body (1). The air bladder (2) is funnel-shaped with the large end in front and the small end behind. The small end of the air bladder (2) is connected to the inflation chamber (12). A first urine inlet (13) is provided at the front end of the main body (1). A second urine inlet (14) is provided on the inner side of the small end of the air bladder (2) of the main body (1). The first urine inlet (13) and the second urine inlet (14) are connected to the drainage chamber (11).

2. The dual-flow polymer-source urinary catheter according to claim 1, characterized in that: The airbag (2) is made of silicone rubber.

3. The dual-flow polymer-source urinary catheter according to claim 2, characterized in that: The surface of the airbag (2) is coated with a silver ion hydrogel.

4. The dual-flow polymer-source urinary catheter according to claim 1, characterized in that: There are multiple first inlet holes (13) evenly arranged along the side wall of the catheter body (1), and multiple second inlet holes (14) evenly arranged along the side wall of the catheter body (1).

5. The dual-flow polymer-source urinary catheter according to claim 4, characterized in that: The front end of the catheter body (1) is closed and rounded and smooth.

6. The dual-flow polymer-source urinary catheter according to claim 1, characterized in that: The inner wall of the drainage cavity (11) is provided with a spiral groove.

7. The dual-flow polymer-source urinary catheter according to claim 1, characterized in that: The edge of the large end of the airbag (2) is rounded and smooth.

8. The dual-flow polymer-source urinary catheter according to claim 1 or 7, characterized in that: The edge of the large end of the balloon (2) is lower than the ureteral orifice (6).

9. The dual-flow polymer-source urinary catheter according to claim 1, characterized in that: The catheter body (1) has a drain pipe and an inflation pipe at its rear end. The drain pipe is connected to the drainage chamber (11), and the inflation pipe is connected to the inflation chamber (12).

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