High-flexibility five-sense-organ expansion catheter

Abstract

The utility model relates to a high-flexibility five-sense-organ dilating catheter which comprises a three-way handle, a supporting tube, a developing mark, a catheter body, a supporting wire, a balloon and a front-end soft head. The rear end of the supporting tube is fixedly connected with the three-way handle, the catheter is arranged in the supporting tube in a penetrating mode, the front end of the catheter is fixedly connected with the near end of the balloon, and the rear end of the catheter extends into an inner cavity of the three-way handle and serves as a free end to move back and forth in the three-way handle. The supporting wire penetrates through the catheter, the rear end of the supporting wire extends into an inner cavity of the three-way handle and is fixedly connected with one cavity opening in the three-way handle in a sealed mode, and the front end of the supporting wire is fixedly connected with the far end of the balloon and the front-end soft head. And the developing marks are arranged on the supporting wires. According to the innovative structure, an independent supporting wire assembly is omitted, the supporting wire is directly embedded into the catheter, and the integrated design is achieved.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, and particularly relates to a highly flexible five - sense organ dilation catheter. Background Art

[0002] The wide application of balloon dilation technology has spanned multiple medical fields such as cardiovascular, digestive, urinary, and respiratory, and has become a standardized means for treating lumen stenosis. With the continuous progress and innovation of technology, this technology has now been extended to the treatment of natural cavities of the five - sense organs, providing a revolutionary minimally invasive treatment plan for stenotic lesions in the ear, nose, throat, etc., greatly improving the treatment experience and quality of life of patients.

[0003] Specifically, patients may have ear canal stenosis due to congenital factors or acquired infections (such as recurrent otitis media), which affects hearing and may lead to recurrent ear infections. Similarly, laryngeal stenosis may be caused by congenital laryngomalacia, laryngeal inflammation, trauma, or fibrosis after radiotherapy, which may cause breathing difficulties and even lead to asphyxia in severe cases. In addition, nasal stenosis may be caused by congenital developmental abnormalities, poor healing after nasal bone fractures, long - term nasal inflammation, or tumor compression, etc., affecting breathing and resulting in a decline in the quality of life of patients. The treatment of these stenotic lesions can bring significant improvements to patients through balloon dilation.

[0004] Taking the balloon dilation of the paranasal sinuses as an example, this technology originated in the 1980s and was initially used for the treatment of cardiovascular obstruction and later applied to the field of paranasal sinus surgery. Its basic principle is to use a small balloon to dilate the stenotic part in the nasal cavity, thereby opening the blocked paranasal sinus passage and improving the ventilation and drainage of the paranasal sinuses. The application of this method in clinical practice has gradually increased, especially showing significant effects in the treatment of chronic rhinosinusitis in children. During the operation, the doctor first observes the structures of the nasal cavity and paranasal sinuses through a nasal endoscope, and then guides a thin guide wire into the natural passage of the paranasal sinuses. Then, the paranasal sinus balloon catheter is sent along the guide wire to the stenotic part of the paranasal sinus drainage passage, and the balloon is inflated briefly. In this way, the pressure of the balloon can crack and move the stenotic bone pieces outward to form a bony passage while protecting the paranasal sinus mucosa from damage. Finally, the balloon is deflated and removed, completing the dilation of the paranasal sinus drainage passage.

[0005] Currently, the paranasal sinus balloon dilation catheters on the market, such as Figures 1 to 3As shown in the figure, it is mainly composed of a front soft tip 1, a balloon 3, a radiopaque marker 2, a core tube 8, a catheter 5, a support tube 6, a three-way handle 7, a support wire assembly 7, etc. The rear end of the support tube is connected to the front end of the handle assembly. The catheter is inserted into the support tube, and the rear end of the catheter extends into the handle assembly for free telescoping. The front end of the catheter is connected to the rear end of the balloon. The front end of the balloon is connected to the front soft tip and fixed to the core tube together. The core tube is inserted into the catheter, and the rear end of the core tube extends into the handle assembly. The rear end of the core tube is fixedly connected to the inner cavity of the handle assembly. A radiopaque marker is provided on the core tube inside the balloon. The support wire assembly is a separate component and is inserted into the core tube from the rear end of the handle assembly.

[0006] Currently, for this kind of sinus balloon dilation catheter, there are a core tube, a catheter, and a support tube in sequence outside the support wire. During the surgical operation, the sinus balloon catheter works in cooperation with the sinus guide catheter and enters the narrow area in the nasal cavity for dilation. The head end of the sinus guide catheter is designed with multiple angles, including multiple different angles such as 0°, 30°, 70°, 90°, and 110°. During the bending process, the catheter may bend or break, resulting in increased surgical difficulty, extended surgical time, prolonged patient recovery, risk of complications, increased medical costs, and other adverse consequences. The selection of these angles poses challenges to the bending performance and pushing efficiency of the sinus balloon catheter. This patent application mainly solves the above problems and is more concise and convenient for the operator. Summary of the Utility Model

[0007] The purpose of the present utility model is to solve the problems in the prior art, that is, to provide a highly flexible five - sense organ dilation catheter, which overcomes the deficiencies of the conventional sinus balloon dilation catheter, such as large catheter size caused by the need to configure a core tube and being prone to bending or breaking during surgery. By reducing the outer diameter of the catheter, the catheter can be flexibly applied in more natural body cavities, improving the convenience and safety of surgical operations.

[0008] The technical solution adopted by the present utility model to solve its technical problems is:

[0009] Provide a highly flexible five - sense organ dilation catheter, including

[0010] a three - way handle, a support tube, a radiopaque marker, a catheter, a support wire, a balloon, and a front soft tip;

[0011] The rear end of the support tube is hermetically and fixedly connected to the three - way handle. The catheter is inserted into the support tube, its front end is fixedly connected to the proximal end of the balloon, and its rear end extends into the inner cavity of the three - way handle and is hermetically and fixedly connected to the support tube;

[0012] The support wire is inserted into the catheter, its rear end extends into the inner cavity of the three - way handle, and is hermetically connected and fixed to one of the orifices in the three - way handle. Its front end is fixedly connected to the distal end of the balloon and the front soft tip;

[0013] The developing mark is arranged on the support wire.

[0014] Furthermore, the rear end of the support wire and the three-way handle are fixedly connected by glue.

[0015] Furthermore, the catheter and the support tube are hermetically fixed by glue.

[0016] The beneficial effects of the utility model are as follows:

[0017] By fixing the developing mark on the support wire that has been ground thin, the distal end of the balloon and the front soft head are welded to the head end of the support wire, and at the same time the proximal end of the balloon is welded to the outer tube, so that the overall outer diameter of the structure is significantly reduced.

[0018] This innovative structure omits the independent support wire assembly and directly embeds the support wire inside the catheter, realizing an integrated design.

[0019] The support wire is directly fixed, eliminating the core tube, so that the outer diameter of the catheter can be made smaller, making the catheter more flexible in the nasal cavity and thus easier to pass through narrow paths. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following further illustrates the present utility model in conjunction with the drawings.

[0021] Figure 1 is a schematic diagram of a sinus balloon dilation catheter on the current market;

[0022] Figure 2 is Figure 1 the enlarged view at A in

[0023] Figure 3 is Figure 1 the enlarged view at B in

[0024] Figure 4 is a schematic diagram of the high-flexibility sinus balloon catheter of the present utility model;

[0025] Figure 5 is Figure 4 the enlarged view at C in

[0026] Figure 6 is Figure 4 the enlarged view at D in

[0027] Wherein, 1, front soft head; 2, developing mark; 3, balloon; 4, support wire; 5, catheter; 6, support tube; 7, three-way handle; 8, core tube; 9, glue. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] This application provides a highly flexible five - sense organ dilation catheter, which will be described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of this application. And in the following embodiments, each embodiment description has its own focus. For parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0030] To solve the technical problem in the prior art that due to the need to configure a core tube 8 inside the catheter of the sinus balloon dilation catheter, the catheter size needs to be enlarged, resulting in the catheter being prone to bending or breakage during surgery, an embodiment of this application provides a highly flexible five - sense organ dilation catheter. The following will be elaborated in detail.

[0031] As Figures 4 to 6 shown, the highly flexible five - sense organ dilation catheter includes

[0032] a three - way handle 7, a support tube 6, a visualization marker 2, a catheter 5, a support wire 4, a balloon 3, and a front soft tip 1;

[0033] The rear end of the support tube 6 is hermetically and fixedly connected to the three - way handle 7. The catheter 5 is disposed inside the support tube 6, its front end is fixedly connected to the proximal end of the balloon 3, and its rear end extends into the inner cavity of the three - way handle 7 and is hermetically and fixedly connected to the support tube 6;

[0034] The support wire 4 is disposed inside the catheter 5, its rear end extends into the inner cavity of the three - way handle 7, and is hermetically connected and fixed to one of the orifices in the three - way handle 7. Its front end is fixedly connected to the distal end of the balloon 3 and the front soft tip 1;

[0035] The visualization marker 2 is disposed on the support wire 4.

[0036] Specifically, as an alternative implementation in this embodiment, as Figure 6 shown, the rear end of the support tube 6 and the three - way handle 7 are fixedly connected by glue 9.

[0037] Specifically, as an alternative implementation in this embodiment, as Figure 6 shown, the rear end of the support wire 4 and the three - way handle 7 are fixedly connected by glue 9. The glue 9 here blocks one of the orifices in the three - way handle 7. Another orifice of the three - way handle 7 is in communication with the catheter 5, and liquid can be injected into the balloon 3 through the catheter 5.

[0038] Specifically, as an alternative implementation in this embodiment, the catheter 5 and the support tube 6 are hermetically fixed with glue 9. After the catheter 5 is fixed in the support tube 6 with glue 9, the catheter 5 communicates with the inner cavity of the three-way handle 7, and liquid can be injected into the balloon 3 through the liquid injection cavity of the catheter 5, so as to inflate the balloon 3.

[0039] The highly flexible five-sense organ dilation catheter of the present utility model omits the traditional core tube 8, and the rear end of the support wire 4 is directly fixedly connected to the three-way handle 7. Therefore, the size of the catheter 5 can be made smaller, which can make the catheter 5 more flexible in the nasal cavity, and thus it is easier to pass through a narrow path, improving the bending performance of the balloon catheter.

[0040] The support wire 4 is directly embedded inside the catheter 5, realizing an integrated design. When in use, the pushing efficiency of the balloon catheter is improved.

[0041] All the components selected in this application (components whose specific structures are not described) are common standard components or components known to those skilled in the art, and their structures and principles can all be learned by those skilled in the art through technical manuals or through conventional experimental methods.

[0042] In the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0043] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] In several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there may be other division methods in actual implementation. For another example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling, direct coupling, or communication connection to each other can be through some communication interfaces. The indirect coupling or communication connection of the devices or units can be in electrical, mechanical, or other forms.

[0045] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0046] In addition, in each embodiment of the present utility model, the functional units can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit.

[0047] Taking the above ideal embodiment of the present utility model as an inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A highly flexible dilatation catheter for five organs, characterized in that: include A three-way handle (7), a support tube (6), a development marker (2), a catheter (5), a support wire (4), a balloon (3), and a front soft head (1); The rear end of the support tube (6) is sealed and fixedly connected to the three-way handle (7); the catheter (5) is inserted into the support tube (6); the front end thereof is fixedly connected to the proximal end of the balloon (3); the rear end thereof extends into the inner cavity of the three-way handle (7) and is sealed and fixedly connected to the support tube (6); The support wire (4) is inserted into the catheter (5), and its rear end extends into the inner cavity of the three-way handle (7) and is sealed and fixedly connected to a cavity opening in the three-way handle (7), and its front end is fixedly connected to the distal end of the balloon (3) and the front soft head (1); The development mark (2) is arranged on the supporting wire (4).

2. The highly flexible five organ dilatation catheter according to claim 1, characterized in that: The rear end of the support tube (6) and the three-way handle (7) are connected and fixed by glue (9).

3. The high flexibility dilatation catheter for five organs according to claim 1, characterized in that: The rear end of the support wire (4) and the three-way handle (7) are connected and fixed by glue (9).

4. The high flexibility dilatation catheter for five organs according to claim 1, characterized in that: The conduit (5) and the support tube (6) are sealed and fixed using glue (9).

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