Stable-fitting balloon catheter

Abstract

The utility model belongs to the technical field of balloon catheters, and particularly relates to a stably-attached balloon catheter which comprises a one-way Luer taper, a catheter is fixedly installed at the liquid outlet end of the one-way Luer taper, a fixed balloon is fixedly installed at the end, away from the one-way Luer taper, of the catheter, and the tip end of the fixed balloon is concaved inwards to form an inwards-concaved end. A first water outlet is formed in the end, located in the fixed balloon, of the catheter. According to the stably-attached balloon catheter, one side of the catheter penetrates through the interior of the fixed balloon, the tip end of the water outlet sinks inwards to form the inwards-sunken end, the inwards-sunken end is in a trumpet shape, the trumpet-shaped fixed balloon can be better attached to the inner wall of a uterine cavity, the gap between the balloon and the inner wall of the uterine cavity is reduced, the attaching area is increased, and therefore the balloon catheter can be better attached to the inner wall of the uterine cavity. The attaching stability is improved, the attaching stability is improved, the fixing effect is enhanced, displacement is avoided, the safety and effectiveness of an operation are improved, and a better treatment effect is brought to a patient.

Description

Technical Field

[0001] This utility model relates to the field of balloon catheter technology, and in particular to a balloon catheter with stable fit. Background Technology

[0002] In the field of interventional medicine, balloon catheters are an important medical device widely used in angioplasty, hysteroscopic surgery, and other medical procedures requiring dilation or occlusion treatment. Traditional balloon catheter designs typically include a flexible balloon section fixed to the catheter body, with the catheter extending through both sides of the balloon to inject fluid (such as saline) into it for inflation.

[0003] Existing balloon catheters have a catheter that runs through both sides of the balloon. Because the catheter runs through both sides of the balloon, when the balloon is inflated to fit the target area (such as the uterine cavity wall), the presence of the catheter will interfere with the complete fit between the balloon and the target area to some extent. This incomplete fit not only reduces the effectiveness of the treatment, but may also lead to insufficient stability of the balloon in the uterine cavity, making it prone to displacement. Displacement will not only affect the precision and safety of the operation, but may also increase the patient's pain and the risk of complications. Utility Model Content

[0004] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0005] Specifically, the technical problem to be solved by this utility model is to provide a stable and fitting balloon catheter to solve the technical problem that the current balloon catheters run through both sides of the balloon, resulting in insufficient stability of the balloon in the uterine cavity and easy displacement.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A stable and fitting balloon catheter includes a one-way Luer connector. A catheter is fixedly installed at the outlet end of the one-way Luer connector, and the end of the catheter away from the one-way Luer connector is in a blocked state. A fixing balloon is fixedly installed at the end of the catheter away from the one-way Luer connector. The tip of the fixing balloon is concave inward to form an inward concave end, and the inward end of the inward concave end is fixed on the end of the catheter away from the one-way Luer connector. An outlet is provided at the end of the catheter located inside the fixing balloon.

[0008] As an improved technical solution, an indicator balloon is sleeved at one end of the conduit near the one-way Luer connector, and an outlet is provided at the other end of the conduit inside the indicator balloon.

[0009] As an improved technical solution, a cannula is integrally formed and installed at the center of both ends of the indicating balloon, and the cannula is fixed to the catheter.

[0010] As an improved technical solution, the fixed balloon is fitted with a second sleeve coaxial with the catheter at one end near the catheter, and the second sleeve is sleeved and fixed on the catheter.

[0011] After adopting the above technical solution, the beneficial effects of this utility model are:

[0012] 1. This utility model uses a catheter to penetrate the interior of a fixation balloon on one side, causing the tip of the outlet to be concave inward to form a concave end. This concave end has a trumpet shape, and the trumpet-shaped fixation balloon can better fit with the inner wall of the uterine cavity, reducing the gap between the balloon and the inner wall of the uterine cavity, increasing the contact area, and improving the stability of the fit. This is beneficial for improving the stability of the fit, enhancing the fixation effect, and avoiding displacement, thereby improving the safety and effectiveness of the operation and bringing better treatment results to patients.

[0013] 2. In this utility model, an indicator balloon is installed at the end of the catheter away from the fixed balloon. When liquid is injected into the catheter, after the fixed balloon is full, the excess liquid will enter the indicator balloon through the outlet and accumulate inside. The indicator balloon is connected to the fixed balloon and is used to indicate the filling status of the fixed balloon. This helps to prevent the indicator balloon from being overfilled and improves the stability of the catheter in use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0015] Figure 1 This is a schematic diagram of the overall structure of a stable and fitting balloon catheter according to the present invention.

[0016] Figure 2 This is a cross-sectional view of the indicator balloon and the fixation balloon of a balloon catheter that fits and stabilizes according to this utility model.

[0017] Explanation of reference numerals in the attached figures:

[0018] 1. One-way Luer connector; 2. Indicator balloon; 3. Catheter; 4. Fixation balloon; 5. Concave end; 6. Outlet 1; 7. Outlet 2. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0021] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0022] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0023] like Figures 1 to 2 As shown in the figure, this embodiment provides a stable and conforming balloon catheter. This stable and conforming balloon catheter includes a one-way Luer connector 1. A catheter 3 is fixedly installed at the outlet end of the one-way Luer connector 1, and the end of the catheter 3 away from the one-way Luer connector 1 is in a blocked state. A fixing balloon 4 is fixedly installed at the end of the catheter 3 away from the one-way Luer connector 1. The tip of the fixing balloon 4 is concave inward to form an inward concave end 5, and the inward end of the inward concave end 5 is fixed to the end of the catheter 3 away from the one-way Luer connector 1. The catheter 3 is located in a fixed position. One end of the fixed balloon 4 has an outlet 6. A catheter 3 is inserted through the interior of the fixed balloon 4 on one side, causing the tip of the outlet 6 to be concave inward to form an inward concave end 5. This inward concave end 5 is funnel-shaped. The funnel-shaped fixed balloon 4 can better fit with the inner wall of the uterine cavity, reducing the gap between the balloon and the inner wall of the uterine cavity, increasing the contact area, and improving the stability of the fit. This is beneficial for improving the stability of the fit, enhancing the fixation effect, and avoiding displacement, thereby improving the safety and effectiveness of the operation and bringing better treatment results to the patient.

[0024] like Figures 1 to 2 As shown in the figure, in this embodiment, the end of the conduit 3 near the one-way Luer connector 1 is fitted with an indicator balloon 2, and the end of the conduit 3 located inside the indicator balloon 2 is provided with an outlet 2 7.

[0025] like Figures 1 to 2 As shown in the figure, in this embodiment, a cannula is integrally formed and installed at the center of both ends of the indicating balloon 2, and the cannula is fixed on the catheter 3.

[0026] An indicator balloon 2 is installed at the end of the catheter 3 away from the fixed balloon 4. When liquid is injected into the catheter 3, after the fixed balloon 4 is filled with liquid, the excess liquid will enter the indicator balloon 2 through the outlet 7 and accumulate inside. The indicator balloon 2 is connected to the fixed balloon 4 and is used to indicate the filling status of the fixed balloon 4. This helps to prevent the indicator balloon 2 from being overfilled and improves the stability of the catheter in use.

[0027] like Figures 1 to 2 As shown in the figure, in this embodiment, a second sleeve coaxial with the catheter 3 is installed at one end of the fixed balloon 4 near the catheter 3, and the second sleeve is sleeved and fixed on the catheter 3.

[0028] This balloon catheter is suitable for:

[0029] Cervical insufficiency: For pregnant women with cervical insufficiency who require preventative or emergency cervical cerclage, the risk of amniotic membrane prolapse must be reduced during the procedure to avoid rupture or infection of the amniotic membranes.

[0030] Repositioning of ectopic membranes: When cervical dilation is accompanied by partial or complete bulging of the fetal membranes from the external cervical os, the gentle mechanical support of the balloon helps to reposition the bulging membranes back into the uterine cavity, creating a safe operating space for cerclage suturing.

[0031] Reduce surgical complications: Reduce the risk of iatrogenic premature rupture of membranes caused by direct contact or traction of the fetal membranes during surgery, and at the same time reduce the incidence of infectious complications such as postoperative chorioamnionitis;

[0032] High-risk pregnancy management: Applicable to high-risk pregnant women such as those with multiple pregnancies, a history of premature birth, or a history of cervical surgery, who require additional protection during cervical cerclage to prolong gestation.

[0033] During use, the indicative balloon 2 is connected to the inflation and liquid filling devices to prevent fluid backflow. Liquid is injected into the conduit 3 through the one-way Luer connector 1. The liquid enters the fixed balloon 4 through the outlet 6 and inflates the fixed balloon 4. Once the fixed balloon 4 is full of liquid, it provides support.

[0034] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A balloon catheter with stable fit, characterized in that: The device includes a one-way Luer connector (1), a conduit (3) is fixedly installed at the outlet end of the one-way Luer connector (1), and the end of the conduit (3) away from the one-way Luer connector (1) is in a blocked state. A fixing balloon (4) is fixedly installed at the end of the conduit (3) away from the one-way Luer connector (1). The tip of the fixing balloon (4) is concave inward to form an inward concave end (5), and the inward end of the inward concave end (5) is fixed on the end of the conduit (3) away from the one-way Luer connector (1). An outlet (6) is opened at the end of the conduit (3) located inside the fixing balloon (4).

2. The balloon catheter with stable fit according to claim 1, characterized in that: The end of the conduit (3) near the one-way Luer connector (1) is fitted with an indicator balloon (2), and the end of the conduit (3) inside the indicator balloon (2) is provided with an outlet (7).

3. The balloon catheter with stable fit according to claim 2, characterized in that: The center of each end of the indicator balloon (2) is integrally formed with a sheath, and the sheath is fixed on the catheter (3).

4. The balloon catheter with stable fit according to claim 3, characterized in that: The fixed balloon (4) is equipped with a cannula two that is coaxial with the catheter (3) at one end, and the cannula two is sleeved and fixed on the catheter (3).

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