Cervical dilation balloon catheter

Abstract

This utility model relates to the field of medical device technology and discloses a cervical dilation balloon catheter, including a catheter body. An outer inflatable balloon is fixedly sleeved on the outer wall of the front end of the catheter body. A connecting tube is fixedly connected to the outer surface of the rear end of the catheter body. A first injection port, an inflation port, and a second injection port are fixedly connected to the outer surface of the rear end of the connecting tube. When using this device, the outer inflatable balloon, after being properly inflated, can provide a certain degree of isolation between the balloon and the body. This can prevent discomfort to the mother after the first and second balloons are injected with cold saline. Furthermore, the inflatable outer inflatable balloon increases the integration of the first and second balloons. The combined effect of the first and second balloons can improve the efficiency of assisted delivery without causing discomfort to the mother, thus offering better prospects for use.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a cervical dilation balloon catheter. Background Technology

[0002] A cervical dilation balloon is a non-pharmacological obstetric instrument that allows the cervix to dilate more naturally and safely, significantly increasing the success rate of labor induction. During use, the balloon, positioned inside and outside the cervix, exerts a sustained and gentle dilation force to dilate the cervix. Stimulation of the cervix triggers the release of oxytocin, which intensifies uterine contractions and aids in labor induction. Compared to drug-assisted labor, it safely promotes cervical maturity and dilation while avoiding adverse drug reactions in the pregnant woman. Therefore, cervical dilation balloons are widely used in obstetrics.

[0003] However, it still has some drawbacks. For example, during the delivery process, since the cervical dilation balloons used are relatively round spheres, when the balloon is filled with saline solution, each part of the balloon expands quickly together, which will cause the cervix to expand violently, which can easily cause discomfort to the mother. In addition, the saline solution injected is relatively cold to body temperature, which can also cause physical discomfort and emotional anxiety to the mother.

[0004] To address the aforementioned issues, this application proposes a cervical dilation balloon catheter. Utility Model Content

[0005] The purpose of this invention is to provide a cervical dilation balloon catheter to solve the problem mentioned in the background art that the use of cervical dilation balloons can easily cause discomfort to the mother during childbirth.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cervical dilation balloon catheter, comprising a catheter body, an outer inflatable balloon fixedly sleeved on the outer wall of the front end of the catheter body, a connecting tube fixedly connected to the outer surface of the rear end of the catheter body, a first injection port, an inflation port and a second injection port fixedly connected to the outer surface of the rear end of the connecting tube, and a ball cap fixedly connected to the outermost front end of the catheter body, the outer wall of the ball cap having multiple sets of liquid outlets.

[0007] Preferably, the inner cavity of the catheter body is provided with a first injection pipe, a second injection pipe and a gas injection pipe, the first injection pipe and the first injection port are interconnected, the second injection pipe and the second injection port are interconnected, and the gas inlet and the gas injection pipe are interconnected.

[0008] Preferably, a first water-filled balloon and a second water-filled balloon are fixedly connected to the outer wall of the catheter body. The first water-filled balloon is located at the front end of the second water-filled balloon, and both the first and second water-filled balloons are located inside the outer inflatable balloon.

[0009] Preferably, the outer wall of the gas injection pipe is provided with gas injection ports, and the number of gas injection ports is four.

[0010] Preferably, the gas-filled area is located inside the outer inflatable balloon and outside the first and second water-filled balloons, and the middle outer wall of the outer inflatable balloon fits against the cervix.

[0011] Preferably, a lubricating tube is fixedly connected to the upper outer surface of the conduit body and inside the ball cap, a piston is movably connected to the inner cavity of the lubricating tube, lubricating fluid is placed in the inner cavity of the lubricating tube and on the upper outer surface of the piston, and a lubricating fluid outlet is provided on the upper outer surface of the lubricating tube.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention, through the design of an outer inflatable airbag, can provide a certain degree of isolation between the first and second water-filled balloons and the human body after proper inflation. This can prevent discomfort to the mother after the first and second water-filled balloons are injected with cold saline. Furthermore, the inflatable outer airbag increases the integration of the first and second water-filled balloons. The combined effect of the first and second water-filled balloons can improve the efficiency of assisted delivery without causing discomfort to the mother.

[0014] This invention utilizes a gas injection pipe to inject gas into a system that allows the gas inside the lubrication tube to move towards the front end, thereby pushing the lubricating fluid out of the lubrication outlet and out through the outlet. This provides lubrication to the mother's body, facilitates the smooth entry of the catheter, and reduces discomfort for the mother. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a cervical dilation balloon catheter according to the present invention;

[0016] Figure 2 This is a schematic diagram of the overall planar structure of a cervical dilation balloon catheter according to the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the first and second water-filled balloons of the cervical dilation balloon catheter after fluid injection according to this utility model;

[0018] Figure 4This is an enlarged structural diagram of point A of the cervical dilation balloon catheter of this utility model.

[0019] In the diagram: 1. Catheter body; 2. Connecting tube; 3. First injection port; 4. Inflation port; 5. Second injection port; 6. Outer inflation balloon; 7. Ball cap; 8. Multiple outlets; 9. First injection pipeline; 10. Second injection pipeline; 11. Gas injection pipeline; 12. First water injection balloon; 13. Second water injection balloon; 14. Gas injection port; 15. Cervical os; 16. Gas filling area; 17. Lubricating tube; 18. Piston; 19. Lubricating fluid; 20. Lubricating fluid outlet. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-4 This utility model provides a technical solution: a cervical dilation balloon catheter, including a catheter body 1, an outer inflation balloon 6 fixedly sleeved on the outer wall of the front end of the catheter body 1, a connecting tube 2 fixedly connected to the outer surface of the rear end of the catheter body 1, a first injection port 3, an inflation port 4 and a second injection port 5 fixedly connected to the outer surface of the rear end of the connecting tube 2, and a ball cap 7 fixedly connected to the outer surface of the front end of the catheter body 1, with multiple sets of liquid outlets 8 opened on the outer wall of the ball cap 7.

[0022] In this embodiment, as Figures 2-3 As shown, the inner cavity of the catheter body 1 is provided with a first injection pipe 9, a second injection pipe 10, and a gas injection pipe 11. The first injection pipe 9 is interconnected with the first injection port 3, the second injection pipe 10 is interconnected with the second injection port 5, and the inflation port 4 is interconnected with the gas injection pipe 11. A first water-filled balloon 12 and a second water-filled balloon 13 are fixedly connected to the outer wall of the catheter body 1. The first water-filled balloon 12 is located at the front end of the second water-filled balloon 13. Both the first water-filled balloon 12 and the second water-filled balloon 13 are located inside the outer inflatable balloon 6. The outer wall of the gas injection pipe 11 has an opening... The gas injection port 14 has four sets. After appropriate inflation, the outer inflatable airbag 6 can isolate the first water-filled balloon 12 and the second water-filled balloon 13 from the human body, preventing discomfort to the mother after the injection of cold saline. The gas-filled outer inflatable airbag 6 can also increase the integrity of the first water-filled balloon 12 and the second water-filled balloon 13. The coordinated action of the first water-filled balloon 12 and the second water-filled balloon 13 can improve the efficiency of assisted delivery without causing discomfort to the mother.

[0023] In this embodiment, as Figures 3-4 As shown, the gas-filled area 16 is located inside the outer inflatable balloon 6 and outside the first water-filled balloon 12 and the second water-filled balloon 13. The middle outer wall of the outer inflatable balloon 6 is attached to the cervical opening 15. A lubricating tube 17 is fixedly connected to the upper outer surface of the catheter body 1 and inside the cap 7. A piston 18 is movably connected to the inner cavity of the lubricating tube 17. Lubricating fluid 19 is placed in the inner cavity of the lubricating tube 17 and on the upper outer surface of the piston 18. A lubricating fluid outlet 20 is opened on the upper outer surface of the lubricating tube 17. The gas entering through the gas injection pipe 11 can push the piston 18 inside the lubricating tube 17 to move forward, thereby pushing the lubricating fluid 19 out of the lubricating fluid outlet 20 and out through multiple sets of outlets 8. This can provide lubrication for the mother's body, facilitate the smooth entry of the catheter body 1, and reduce the mother's discomfort.

[0024] Working principle:

[0025] When using this product, firstly, inflate the inflation port 4 appropriately. Gas enters the lubricating tube 17 through the hole at the lower end of the lubricating tube 17 via the gas injection pipe 11. The thrust of the gas pushes the piston 18 inside the lubricating tube 17 forward, thus pushing the lubricating fluid 19 out of the lubricating fluid outlet 20 and out through multiple sets of outlets 8. This provides lubrication to the mother's body, reducing discomfort and facilitating the smooth entry of the catheter body 1. Additionally, some gas enters the gas filling area 16 through the four gas injection ports 14 on the outer wall of the gas injection pipe 11. The resulting slight expansion helps the mother adapt. After the outer inflation balloon 6 is properly inflated, it provides a certain degree of isolation between the first and second water-filled balloons 12 and the body. To avoid discomfort to the mother after the first and second water-injection balloons 12 and 13 are injected with cold saline, and to increase the integration of the first and second water-injection balloons 12 and 13, when further dilation of the cervix 15 is required, since the rear end of the first water-injection balloon 12 is set slightly smaller than the front end, and the front end of the second water-injection balloon 13 is set slightly smaller than the rear end, some gas can be injected again. The gas injection ports 14 are respectively located at the front end of the first water-injection balloon 12 and the rear end of the second water-injection balloon 13. The force of the gas entering can slowly push the first water-injection balloon 12 to the rear end and the second water-injection balloon 13 to the front end. In this way, the first and second water-injection balloons 12 and 13 work together to improve the efficiency of assisted delivery and will not cause discomfort to the mother.

[0026] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A cervical dilation balloon catheter, comprising a catheter body (1), characterized in that: An outer inflatable airbag (6) is fixedly sleeved on the outer wall of the front end of the catheter body (1). A connecting tube (2) is fixedly connected to the outer surface of the rear end of the catheter body (1). A first injection port (3), an inflation port (4), and a second injection port (5) are fixedly connected to the outer surface of the rear end of the connecting tube (2). A ball cap (7) is fixedly connected to the outer surface of the front end of the catheter body (1). Multiple sets of liquid outlets (8) are opened on the outer wall of the ball cap (7).

2. The cervical dilation balloon catheter according to claim 1, characterized in that: The inner cavity of the catheter body (1) is provided with a first injection pipe (9), a second injection pipe (10) and a gas injection pipe (11). The first injection pipe (9) is connected to the first injection port (3), the second injection pipe (10) is connected to the second injection port (5), and the gas inlet (4) is connected to the gas injection pipe (11).

3. The cervical dilation balloon catheter according to claim 1, characterized in that: The outer wall of the catheter body (1) is fixedly connected to a first water-filled balloon (12) and a second water-filled balloon (13). The first water-filled balloon (12) is located at the front end of the second water-filled balloon (13). Both the first water-filled balloon (12) and the second water-filled balloon (13) are located inside the outer inflatable balloon (6).

4. The cervical dilation balloon catheter according to claim 2, characterized in that: The outer wall of the gas injection pipe (11) is provided with a gas injection port (14), and the number of gas injection ports (14) is four.

5. The cervical dilation balloon catheter according to claim 1, characterized in that: The gas-filled area (16) is located inside the outer inflatable balloon (6) and outside the first water-filled balloon (12) and the second water-filled balloon (13). The outer wall of the middle part of the outer inflatable balloon (6) is attached to the cervical opening (15).

6. The cervical dilation balloon catheter according to claim 1, characterized in that: A lubricating tube (17) is fixedly connected to the upper outer surface of the conduit body (1) and inside the ball cap (7). A piston (18) is movably connected to the inner cavity of the lubricating tube (17). Lubricating fluid (19) is placed in the inner cavity of the lubricating tube (17) and on the upper outer surface of the piston (18). A lubricating fluid outlet (20) is opened on the upper outer surface of the lubricating tube (17).

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