Disposable cervical dilation treatment tube

Abstract

A disposable cervical dilation treatment tube belongs to the technical field of medical instruments and comprises a straight tube body, a uterine cavity balloon, an anti-drop micro-dilation balloon and a cervical dilation balloon are sequentially arranged on one side of the straight tube body at intervals, and a first liquid inlet tube, a second liquid inlet tube and a third liquid inlet tube are respectively arranged on the other side of the straight tube body. A first connecting tube, a second connecting tube and a third connecting tube are arranged in the straight tube body, the two ends of the first connecting tube are communicated with the first liquid inlet tube and the cervix opening dilation balloon, the two ends of the second connecting tube are communicated with the second liquid inlet tube and the uterine cavity balloon, and the two ends of the third connecting tube are communicated with the third liquid inlet tube and the anti-falling micro-dilation balloon. Check valves are arranged at the inlet ends of the first liquid inlet pipe, the second liquid inlet pipe and the third liquid inlet pipe. Through improvement of the whole structure, the anti-dropping device has the advantages of being anti-dropping, convenient to operate, remarkable in curative effect and wide in application range.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a disposable cervical dilation treatment tube. Background Technology

[0002] Some women with infertility have cervical stenosis, making conception difficult. In cases of mild cervical adhesions, cervical dilation using speculum or stents can be performed, but this may cause local cervical damage and often yields poor results. Large medical institutions frequently use cervical reshaping surgery, but this is invasive and can lead to secondary infections, congestion, or even a second surgery if not performed correctly. Therefore, disposable cervical dilation balloon catheters have emerged on the market. For patients with poor cervical maturity, these catheters apply continuous, progressive mechanical pressure to the internal and external cervical os to promote cervical maturation and facilitate labor induction. The cervical dilation balloon catheter relies on the pressure generated between the catheter and two balloons placed inside and outside the cervix to mechanically stimulate the cervical canal, promoting the synthesis and release of endogenous prostaglandins in the cervix, thereby softening and maturing the cervix.

[0003] In existing technologies, cervical dilation balloon catheters are generally made of soft silicone material. The product itself is not rigid enough. During its use, it is necessary to use tools such as vaginal speculum to dilate the vagina and cervix, and then use forceps to slowly insert the catheter into the uterus. This operation is relatively complicated and inconvenient, and the insertion of the catheter is quite painful for the mother, causing great discomfort. Summary of the Invention

[0004] The technical problem solved by this utility model is to provide a disposable cervical dilation treatment tube. By improving the overall structure, it has the characteristics of preventing detachment and being easy to operate, while also having the advantages of significant curative effect and wide range of applications.

[0005] The technical solution adopted by this utility model is as follows: a disposable cervical dilation treatment tube, including a straight tube body, with a uterine cavity balloon, an anti-loosening micro-dilation balloon, and a cervical dilation balloon arranged sequentially at intervals on one side of the straight tube body, and a first inlet tube, a second inlet tube, and a third inlet tube respectively arranged on the other side of the straight tube body. A first connecting tube, a second connecting tube, and a third connecting tube are arranged inside the straight tube body. The two ends of the first connecting tube are connected to the first inlet tube and the cervical dilation balloon, the two ends of the second connecting tube are connected to the second inlet tube and the uterine cavity balloon, and the two ends of the third connecting tube are connected to the third inlet tube and the anti-loosening micro-dilation balloon. A check valve is provided at the inlet end of the first inlet tube, the second inlet tube, and the third inlet tube.

[0006] Furthermore, the first inlet pipe and the third inlet pipe are symmetrically arranged on both sides of the second inlet pipe.

[0007] Furthermore, the materials used for the uterine balloon, the anti-loosening micro-dilation balloon, and the cervical dilation balloon are silicone, latex, polyurethane, or polyurethane.

[0008] Furthermore, the straight pipe body, the first liquid inlet pipe, the second liquid inlet pipe, and the third liquid inlet pipe are made of silicone and polyamide.

[0009] Furthermore, the volume of the uterine balloon head is no more than 15 ml, and the pressure of its elastic wall during the period when the balloon head is fully inflated is no more than 40 kPa.

[0010] Furthermore, the inflation volume of the balloon head of the anti-detachment micro-expansion balloon is no more than 3.5 ml, and the pressure of its own elastic wall during the period when the balloon head is inflated to its maximum is no more than 40 kPa.

[0011] Furthermore, the volume of the cervical dilation balloon head is no more than 7 ml, and the pressure of its elastic wall during the period when the balloon head is fully inflated is no more than 40 kPa.

[0012] The beneficial effects of this utility model are as follows: by improving the overall structure, it has the characteristics of preventing hair loss and being easy to operate, while also having the advantages of significant curative effect and wide range of applications. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] In the attached diagram: 1 is the main body of the straight tube, 2 is the uterine cavity balloon, 3 is the anti-loosening micro-dilation balloon, 4 is the cervical dilation balloon, 5 is the first inlet tube, 6 is the second inlet tube, and 7 is the third inlet tube. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0016] See appendix Figure 1A disposable cervical dilation treatment tube includes a straight tube body 1. On one side of the straight tube body 1, a uterine cavity balloon 2, an anti-loosening micro-dilation balloon 3, and a cervical dilation balloon 4 are sequentially spaced. On the other side of the straight tube body 1, a first inlet tube 5, a second inlet tube 6, and a third inlet tube 7 are respectively provided. Inside the straight tube body 1, there are a first connecting tube, a second connecting tube, and a third connecting tube. The first connecting tube is connected at both ends to the first inlet tube 5 and the cervical dilation balloon 4. The second connecting tube is connected at both ends to the second inlet tube 6 and the uterine cavity balloon 2. The third connecting tube is connected at both ends to the third inlet tube 7 and the anti-loosening micro-dilation balloon 3. A check valve is provided at the inlet end of the first inlet tube 5, the second inlet tube 6, and the third inlet tube 7. The first inlet tube 5 and the third inlet tube 7 are symmetrically arranged on both sides of the second inlet tube 6. The uterine cavity balloon 2, the anti-loosening micro-dilation balloon 3, and the cervical dilation balloon 4 are made of silicone, latex, polyurethane, or polyurethane. The straight tube body 1, the first inlet tube 5, the second inlet tube 6, and the third inlet tube 7 are made of silicone and polyamide. The head of the uterine balloon 2 has a filling volume of no more than 15 ml, and its own elastic wall pressure during maximum filling does not exceed 40 kPa. The head of the anti-abortion micro-dilation balloon 3 has a filling volume of no more than 3.5 ml, and its own elastic wall pressure during maximum filling does not exceed 40 kPa. The head of the cervical dilation balloon 4 has a filling volume of no more than 7 ml, and its own elastic wall pressure during maximum filling does not exceed 40 kPa.

[0017] This application pertains to single-use medical devices, primarily made of medical polymer materials, silicone rubber, or latex. This application is applicable to cervical dilation treatment, with check valves at the inlet ends of the first inlet tube 5, the second inlet tube 6, and the third inlet tube 7 connected to a cervical dilation treatment device or syringe.

[0018] The intrauterine balloon 2 has a near-circular or triangular design with a volume not exceeding 15 ml. It is first placed into the uterus, then filled with fluid to seal the internal os, achieving primary prevention of balloon aspiration. The anti-abortion micro-dilation balloon 3 has an oval design, referencing the circular shape of the cervix of a normal woman of childbearing age, typically with a diameter of approximately 2 cm and a length of approximately 3 cm. For non-pregnant women, the inflated volume is less than or equal to 3.5 ml. The balloon length before filling is 0.5-1 cm, and the distance between the unfilled balloon and the unfilled balloon 1 is less than 0.5 cm. After the intrauterine balloon 2 seals the internal os, the anti-abortion micro-dilation balloon 3 is then filled with fluid to prevent aspiration. Micro-dilation can also be used as an auxiliary measure. The locking mechanism ensures the filled balloon does not leak. The cervical dilation balloon 4 is designed to be nearly circular or nearly conical. After being filled with fluid, it gradually enlarges from the inside out, with an inflated length greater than 1.5 cm. Before filling, the distance between it and the anti-loosening micro-dilation balloon is 0.5-1 cm. The maximum inflated volume is no more than 7 ml. After the uterine balloon 2 and the anti-loosening micro-dilation balloon 3 lock the cervix, the cervical dilation balloon 4 is then filled with fluid to perform cervical dilation treatment. Alternatively, the injection port can be locked and left in place for 24 hours before removing the fluid and balloon tube.

[0019] In the specific implementation of this utility model, routine disinfection is performed before the operation. The cervix is ​​exposed using a vaginal speculum. After the balloons of this application are vented, they are inserted into the fundus of the uterus. First, the cervical balloon 2 is injected with fluid until it completely compresses the inner wall of the uterus, and the injection port is locked. The anti-loosening micro-dilation balloon 3 is injected with fluid until it compresses the inner wall of the cervix to prevent the cervical dilation balloon 4 from backfilling. After the cervical dilation balloon 4 is injected with fluid until it adheres to the cervix, the fluid dilation treatment begins. Each time, the amount of fluid injected is increased by a certain amount, and then withdrawn. This process is repeated to promote the dilation of the narrow part of the cervix. The treatment can be performed in multiple sessions. The amount of fluid injected in each treatment can be increased or decreased according to the actual pressure sensing.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A disposable cervical dilation treatment tube, comprising a straight tube body (1), characterized in that: On one side of the straight tube body (1), there are sequentially spaced uterine cavity balloons (2), anti-abortion micro-dilution balloons (3), and cervical dilation balloons (4). On the other side of the straight tube body (1), there are first inlet tubes (5), second inlet tubes (6), and third inlet tubes (7). Inside the straight tube body (1), there are first connecting tubes, second connecting tubes, and third connecting tubes. The two ends of the first connecting tube are connected to the first inlet tube (5) and the cervical dilation balloon (4). The two ends of the second connecting tube are connected to the second inlet tube (6) and the anti-abortion uterine cavity balloon (2). The two ends of the third connecting tube are connected to the third inlet tube (7) and the micro-dilution balloon (3). The inlet ends of the first inlet tube (5), the second inlet tube (6), and the third inlet tube (7) are equipped with check valves.

2. The disposable cervical dilation treatment tube according to claim 1, characterized in that: The first inlet pipe (5) and the third inlet pipe (7) are symmetrically arranged on both sides of the second inlet pipe (6).

3. The disposable cervical dilation treatment tube according to claim 1, characterized in that: The materials of the uterine balloon (2), the anti-loosening micro-dilution balloon (3), and the cervical dilation balloon (4) are silicone, latex, polyurethane, or polyurethane.

4. The disposable cervical dilation treatment tube according to claim 1, characterized in that: The straight pipe body (1), the first liquid inlet pipe (5), the second liquid inlet pipe (6), and the third liquid inlet pipe (7) are made of silicone and polyamide.

5. The disposable cervical dilation treatment tube according to claim 1, characterized in that: The volume of the uterine balloon (2) filled with the head is no more than 15 ml, and the pressure of its elastic wall is no more than 40 kPa during the period when the head is filled to its maximum.

6. The disposable cervical dilation treatment tube according to claim 1, characterized in that: The head of the anti-declination micro-expansion balloon (3) has a filling volume of no more than 3.5 ml, and the pressure of its own elastic wall during the period when the head is filled to the maximum is no more than 40 kPa.

7. The disposable cervical dilation treatment tube according to claim 1, characterized in that: The cervical dilation balloon (4) has a head filling volume of no more than 7 ml and its own elastic wall pressure during the period when the head is filled to its maximum is no more than 40 kPa.

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