A balloon

By introducing a marking mechanism and a tapered guide head into the balloon, the problem of inaccurate catheter insertion length into the salivary gland was solved, improving catheter controllability and treatment precision, and ensuring safety and efficiency.

CN224523785UActive Publication Date: 2026-07-21PEKING UNION MEDICAL COLLEGE HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PEKING UNION MEDICAL COLLEGE HOSPITAL
Filing Date
2025-02-24
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing balloons cannot determine the length of the catheter entering the salivary gland, resulting in low accuracy and controllability of catheter insertion, which affects the precision and safety of the treatment process.

Method used

A balloon is designed, comprising a balloon catheter, a balloon body, a guide head, and a guide wire catheter, equipped with a marking mechanism to facilitate determining the length of the catheter entering the salivary gland. The marking mechanism includes graduation lines and metal markers, and the front end of the guide head is set in a tapered shape to facilitate catheter guidance.

Benefits of technology

The marking mechanism improves the accuracy and controllability of the catheter's insertion length into the salivary gland, ensuring the precision and safety of the treatment process. Furthermore, the tapered design of the guide head enhances the smoothness of the catheter in narrow cavities and improves treatment efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of medical apparatus and instruments especially a kind of balloon, aiming at the length of the existing balloon cannot be determined to enter salivary gland, leading to the accuracy and controllability of catheter entering length is lower, influence the accuracy and safety of treatment process problem, present and propose the following scheme, it includes balloon catheter, the front end of the balloon catheter is fixedly connected with balloon body, the front end of the balloon body is fixedly provided with guide head, the inside of balloon catheter, balloon body and guide head is fixedly provided with same guide wire catheter, the front end of the guide head is conical;Marking mechanism is set on balloon catheter to facilitate determining its length of entering salivary gland.The utility model is set through the setting of marking mechanism, it is convenient to determine the length of catheter entering salivary gland, significantly improve the accuracy and controllability of catheter entering salivary gland length, to ensure the accuracy and safety of treatment process.
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Description

Technical Field

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

[0002] A balloon is a high-tech interventional device that is widely used to treat various diseases of the body's natural cavities, such as vascular diseases and esophageal strictures. It can restore the normal function of the cavity by dilation. Depending on the application site, balloons can also be divided into several types, such as coronary artery balloons, peripheral vascular balloons, and esophageal stricture dilation balloons.

[0003] Currently, existing balloon catheters cannot determine the length of the catheter entering the salivary gland during use, resulting in low accuracy and controllability of catheter entry length, which affects the precision and safety of the treatment process. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where the length of the catheter entering the salivary gland cannot be determined, resulting in low accuracy and controllability of the catheter entry length, which affects the precision and safety of the treatment process. Therefore, a balloon is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A balloon, comprising:

[0007] A balloon catheter, wherein the front end of the balloon catheter is fixedly connected to a balloon body, and a guide head is fixedly provided at the front end of the balloon body; the same guide wire is fixedly provided inside the balloon catheter, the balloon body and the guide head.

[0008] A marking mechanism is installed on the balloon catheter to facilitate determining its length of entry into the salivary gland.

[0009] In one possible design, the marking mechanism includes scale lines symmetrically fixed on both sides of the outside of the balloon catheter, with metal markers fixed at 1cm intervals on the outside of the balloon catheter at the scale lines.

[0010] In one possible design, the balloon catheter and the guidewire catheter are fixedly connected to the same interface at their tail ends.

[0011] In one possible design, the front end of the guide head is tapered.

[0012] In one possible design, there is a gap between the balloon catheter and the balloon body and the guidewire catheter.

[0013] In one possible design, the nominal pressure of the balloon body is 6 atm, the rated burst pressure is 14 atm, and the maximum expansion pressure can be maintained for 5-10 seconds.

[0014] In this application, when starting to use the balloon catheter, balloon body, guide head and guidewire catheter are first ensured to be intact and without any signs of wear or damage. Then the marking mechanism, including the scale lines and metal marks, is checked to ensure that they are clearly visible and accurate.

[0015] Connect the end of the balloon catheter to the appropriate medical device or pressure source through the interface, ensuring a tight and leak-free connection. Then, administer appropriate anesthesia and disinfection to the patient, ensuring the patient is in a comfortable and stable position.

[0016] Then, a guidewire is inserted through the guidewire catheter to ensure that the guidewire can smoothly enter the salivary gland duct to be treated. Under the guidance of the guidewire, the balloon catheter is inserted along the salivary gland duct. During this process, the length of the balloon catheter is determined by observing the scale lines and metal marks to ensure that the predetermined treatment position is reached. Then, an appropriate amount of liquid or gas is injected into the balloon body through the interface to gradually expand it. The pressure of the balloon is monitored to ensure that it does not exceed the nominal pressure (6 atm). The patient's response is observed, and the lesion's response to the expansion of the balloon body is continuously and closely observed during the pressurization process. The balloon can be pressurized repeatedly and used multiple times until the expansion result is satisfactory. When the balloon body reaches the predetermined expansion pressure, the pressure is maintained for 5-10 seconds to ensure that the balloon pressure does not exceed the rated burst pressure (14 atm) during the maintenance of expansion.

[0017] During withdrawal, slowly release the pressure inside the balloon body to gradually return it to its uninflated state. After applying negative pressure during this process, wait 5-10 seconds. Once the balloon body has fully recovered, withdraw the balloon catheter and guidewire catheter while maintaining the guidewire position.

[0018] This utility model has the following beneficial effects:

[0019] In this invention, the marking mechanism allows for the determination of the length of the balloon catheter during insertion by observing the scale lines and metal marks. This facilitates the determination of the catheter's entry length into the salivary gland, ensuring that the predetermined treatment position is reached. This significantly improves the accuracy and controllability of the catheter's entry length into the salivary gland, thereby ensuring the precision and safety of the treatment process.

[0020] In this invention, the tapered design of the guide head allows for smoother guidance of the catheter into narrow salivary gland ducts and enables gradual dilation of the catheter, thereby improving treatment efficiency and patient comfort.

[0021] This invention, through the setting of a marking mechanism, facilitates the determination of the length of the catheter entering the salivary gland, significantly improving the accuracy and controllability of the catheter's entry length into the salivary gland, thereby ensuring the precision and safety of the treatment process. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a balloon proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the balloon body expansion structure of a balloon proposed in this utility model;

[0024] Figure 3 This is a cross-sectional view of the balloon body and balloon catheter of the balloon proposed in this utility model;

[0025] Figure 4 This is an enlarged structural diagram of part A of a balloon proposed in this utility model.

[0026] In the diagram: 1. Balloon catheter; 2. Balloon body; 3. Guide head; 4. Guide wire catheter; 5. Interface; 6. Scale line; 7. Metal mark. Detailed Implementation

[0027] 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.

[0028] Example 1

[0029] Reference Figure 1-4 A type of balloon used in the field of medical devices, including:

[0030] The balloon catheter 1, balloon body 2, guide head 3, guide wire catheter 4, and marking mechanism are included. The balloon catheter 1 is the main part, and its front end is fixedly connected to the balloon body 2. The balloon body 2 is designed to be expanded during the operation to achieve the treatment purpose.

[0031] The guide head 3 is fixedly located at the front end of the balloon body 2. Its shape is conical. This design helps the balloon catheter 1 and the balloon body 2 to advance smoothly in the narrow salivary gland duct, improving the accuracy and safety of the operation.

[0032] The guidewire catheter 4 is fixedly installed inside the balloon catheter 1, balloon body 2 and guide head 3, providing a guiding channel for the surgeon. The guidewire can be inserted through this channel to assist in the positioning and advancement of the balloon.

[0033] A marking mechanism is provided on the balloon catheter 1 to determine its length into the salivary gland. Specifically, the marking mechanism includes scale lines 6 that are symmetrically fixed on both sides of the outside of the balloon catheter 1, and metal marks 7 that are fixed at intervals of 1 cm at the scale lines 6. These marks provide the surgeon with an intuitive visual reference and help to accurately control the insertion depth of the balloon catheter 1.

[0034] The balloon catheter 1 and the guidewire catheter 4 are fixedly connected at the same interface 5. This interface is used to connect to external medical devices or pressure sources so as to inject liquid or gas into the balloon body 2 for expansion and subsequent insertion of the guidewire.

[0035] There is a gap between the balloon catheter 1 and the balloon body 2 and the guidewire catheter 4. This design helps to reduce friction, improve the smoothness of the balloon catheter 1 and the balloon body 2 during the advancement process, and facilitate the subsequent inflation of the balloon body 2.

[0036] The nominal pressure of the balloon body 2 is 6 atm, the rated burst pressure is 14 atm, and the maximum expansion pressure can be maintained for 5-10 seconds. These parameters ensure the safety and effectiveness of the balloon during the operation and avoid the risk of rupture due to excessive pressure.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A balloon, characterized in that, include: A balloon catheter (1) is fixedly connected to a balloon body (2) at its front end. A guide head (3) is fixedly provided at the front end of the balloon body (2). The same guide wire catheter (4) is fixedly provided inside the balloon catheter (1), the balloon body (2) and the guide head (3). A marking mechanism is provided on the balloon catheter (1) to facilitate the determination of its length into the salivary gland.

2. A balloon according to claim 1, characterized in that, The marking mechanism includes scale lines (6) symmetrically fixed on both sides of the outside of the balloon catheter (1), and metal marks (7) are fixed at intervals of 1 cm on the outside of the balloon catheter (1) at the scale lines (6).

3. A balloon according to claim 1, characterized in that, The balloon catheter (1) and the guidewire catheter (4) are fixedly connected to the same interface (5).

4. A balloon according to claim 1, characterized in that, The front end of the guide head (3) is tapered.

5. A balloon according to claim 1, characterized in that, There is a gap between the balloon catheter (1) and balloon body (2) and guidewire catheter (4).

6. A balloon according to claim 1, characterized in that, The nominal pressure of the balloon body (2) is 6 atm, the rated burst pressure is 14 atm, and the maximum expansion pressure can be maintained for 5-10 seconds.