Painless fallopian tube catheter

Abstract

The utility model discloses a painless fallopian tube catheter, which comprises an outer catheter and an inner catheter, the plugging head is arranged at the front end of the outer catheter; the head of the extension catheter is inserted into the outer catheter, penetrates through the plugging head and is arranged outside the plugging head, and the tail of the extension catheter is connected with radiography liquid supply equipment through a connecting assembly; wherein the plugging head is of a bowl-shaped structure provided with a central insertion hole, the bowl-shaped structure can be matched with a cervical opening, and the central insertion hole can be matched and connected with the front end of the outer catheter in an inserted mode; and the head part of the extension catheter is bent.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a painless fallopian tube catheter. Background Technology

[0002] Interventional treatment of the fallopian tubes requires hysterosalpingography (HSG). A contrast agent is injected into the uterine cavity and fallopian tubes through a catheter. Under contrast imaging, the location of the fallopian tube blockage and the shape of the uterine cavity are identified. This procedure is characterized by minimal invasiveness and high accuracy, and is widely used in gynecology, interventional radiology, and hysteroscopy. However, existing fallopian tube catheters have a conical tip at the end of the dilator. During use, the catheter must be inserted through the vagina to the cervix, and the catheter tip must be inserted into the cervix before the contrast agent is injected into the cervix or fallopian tube for the HSG examination. The conical tip of existing products causes unbearable pain to patients after insertion into the cervix. Furthermore, current manufacturers only produce one type of conical tip, using the same tip for both women who have given birth (over 10mm) and those who have not given birth (3-5mm). This causes significant pain for women who have not given birth, while for women who have given birth, the conical tip may not completely block the cervix, leading to contrast agent leakage and preventing the HSG from achieving the desired effect, thus prolonging the treatment time. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a painless fallopian tube catheter.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A painless fallopian tube catheter, comprising:

[0006] External catheter;

[0007] The plugging head is located at the front end of the external conduit;

[0008] An extension catheter is inserted into an external catheter at its head and passes through a closure head, positioned outside the closure head. Its tail is connected to the contrast fluid supply device via a connecting assembly.

[0009] The sealing head is a bowl-shaped structure with a central insertion hole. The bowl-shaped structure can be adapted to the cervix, and the central insertion hole can be adapted to the front end of the external catheter for insertion. The head of the extension catheter is curved.

[0010] The front end of the external catheter is a variable diameter cannula, which is inserted into the central insertion hole of the sealing head and protrudes from the sealing head.

[0011] The bowl-shaped structure contains a centrally protruding annular groove structure. The central protrusion can fit against the inner wall of the cervix, and the annular groove structure can fit completely against the cervix.

[0012] The connection component includes:

[0013] The connector is fitted and installed on the tail end of the external conduit;

[0014] A bent joint, used to connect with a fitting;

[0015] The bent connector is connected to and communicates with the tail of the extension conduit.

[0016] The bending joint is a 6% Luer tapered joint.

[0017] The beneficial effects of this utility model are:

[0018] 1. This utility model solves the problem of painless interventional injection angiography treatment, and can be used effectively and safely for different patients, while avoiding problems such as contrast agent leakage and backflow.

[0019] 2. This utility model utilizes the bowl-shaped structure of the sealing head. The central protrusion of the bowl-shaped structure fits against the inner wall of the cervix, and the annular groove structure fits completely against the cervix. This allows the cervix to be completely sealed during the contrast agent procedure, effectively preventing leakage. At the same time, since the sealing is performed from the outside of the cervix, it avoids the physical and psychological pain caused to the patient by the traditional method of inserting the sealing head into the cervix.

[0020] 3. This utility model forms a connecting component by connecting the connector and the bending connector, which makes the assembly and disassembly of this device faster and more convenient, effectively improving work efficiency. At the same time, the connection between the connector and the bending connector also plays a role in positioning the extension tube after it is in place. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a cross-sectional view of the present invention.

[0023] Figure 3 This is a perspective view of the sealing head of this utility model. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0025] like Figures 1 to 3As shown, a painless fallopian tube catheter includes: an external catheter 3; a sealing head 4 disposed at the front end of the external catheter 3; and an extension catheter 5, the head of which is inserted into the external catheter 3 and passes through the sealing head 4, and is disposed outside the sealing head 4, with its tail connected to a contrast fluid supply device via a connecting component; wherein, the sealing head 4 is a bowl-shaped structure with a central insertion hole, the bowl-shaped structure being adaptable to the cervix, and the central insertion hole being adaptable to the front end of the external catheter 3 for insertion; the head of the extension catheter 5 is curved.

[0026] like Figure 2 As shown, the front end of the external catheter 3 is a variable diameter cannula, which is inserted into the central insertion hole of the sealing head 4 and protrudes from the sealing head 4.

[0027] like Figures 1 to 3 As shown, the bowl-shaped structure contains a centrally protruding annular groove structure. The central protrusion can fit against the inner wall of the cervix, and the annular groove structure can fit completely against the cervix.

[0028] like Figure 1 and Figure 2 As shown, the connection assembly includes: a connector 2, and a bent connector 1 installed on the tail end of the outer conduit 3, which is connected to the connector 2; wherein, the bent connector 1 is connected to and communicates with the tail end of the extension conduit 5, and the bent connector 1 is a 6% Luer tapered connector.

[0029] In use, the sealing head 4 is made of silicone, modified PVC, PU and other materials, the outer conduit 3 is made of PE, the extension conduit 5 is made of PTFE, and the bending joint 1 and the joint 2 are made of PP.

[0030] In clinical application, the extension catheter 5 is inserted into the outer catheter 3. After assembly, it is used in conjunction with a hysteroscope. The tip of the extension catheter 5 is inserted along the guide wire, and the outer catheter 3 enters through the vagina. When the head of the reducing catheter touches the cervix, the bent connector 1 is pushed in so that the extension catheter 5 enters the cervix along the reducing catheter head and reaches the inside of the uterus. It can also reach the inside of the fallopian tube along the guide wire. Finally, the contrast agent is injected through the extension catheter 5. The ergonomic design of the sealing head 4 can fit well and cover the cervix, avoiding pain for the patient and effectively preventing the backflow of the contrast agent.

[0031] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A painless fallopian tube catheter, characterized in that, include: External catheter (3); The plug (4) is located at the front end of the external conduit (3); The extension catheter (5) is inserted into the outer catheter (3) and passes through the occlusion head (4), and is set outside the occlusion head (4). Its tail is connected to the contrast fluid supply device through the connecting assembly. Among them, the plug head (4) is a bowl-shaped structure with a central insertion hole. The bowl-shaped structure can be adapted to the cervix, and the central insertion hole can be adapted to the front end of the external catheter (3) for insertion; the head of the extension catheter (5) is curved. The connection component includes: The connector (2) is fitted onto the tail end of the external conduit (3); The bent joint (1) is connected to the joint (2); The bent connector (1) is connected to the tail of the extension conduit (5) and is in communication with each other.

2. The painless fallopian tube catheter according to claim 1, characterized in that, The front end of the external catheter (3) is a variable diameter cannula, which is inserted into the central insertion hole of the sealing head (4) and protrudes out of the sealing head (4).

3. The painless fallopian tube catheter according to claim 1, characterized in that, The bowl-shaped structure contains a centrally protruding annular groove structure. The central protrusion can fit against the inner wall of the cervix, and the annular groove structure can fit completely against the cervix.

4. The painless fallopian tube catheter according to claim 1, characterized in that, The bending joint (1) is a 6% Luer tapered joint.

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