Umbrella valve bronchial valve

Abstract

The utility model relates to medical instrument technical field, concretely relates to a umbrella valve bronchus flap, the umbrella valve bronchus flap of utility model includes flap body (1) and umbrella valve (2), the flap body (1) has at least one exhaust hole (5), the umbrella valve (2) is one -way valve structure, the umbrella valve (2) is installed on the flap body (1), the umbrella valve (2) can control gas one -way through the bronchus flap, the utility model not only has improved the effectiveness and safety of treatment, has also simplified the operation process, provides more convenient selection for clinician.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an umbrella valve bronchial valve. Background Technology

[0002] Chronic obstructive pulmonary disease (COPD) is a common chronic airway disease. In recent years, bronchoscopic one-way valve placement for lung volume reduction has gained increasing attention as a minimally invasive interventional procedure. It can improve patients' respiratory status while reducing the volume of target lung tissue, thereby improving their quality of life. Currently, various types of one-way valves are available on the market, including duckbill valves (EBV). These valves reduce lung volume by preventing gas from entering the affected area while allowing gas to exit from that area. However, existing one-way valves still have certain limitations in their design. For example, some valve structures may lead to poor drainage of secretions, increasing the risk of infection; furthermore, due to imperfect fixation between the valve and the bronchial wall, displacement may occur, affecting treatment outcomes.

[0003] Currently, the bronchial one-way valve used in clinical practice is a nickel-titanium alloy skeleton combined with a membrane material to achieve the function of a bronchial one-way valve with radial support. Its manufacturing process is relatively complex and the yield is low.

[0004] To overcome the above shortcomings, this application proposes a novel umbrella valve bronchial one-way valve, which not only improves the effectiveness and safety of treatment, but also simplifies the surgical procedure and provides clinicians with a more convenient option. Utility Model Content

[0005] This invention provides a novel umbrella valve bronchial valve, which is made of medical-grade silicone rubber and integrally molded using injection molding, ensuring good biocompatibility and mechanical strength.

[0006] This utility model provides an umbrella valve, which includes a valve body and an umbrella valve. The valve body has at least one vent hole, including but not limited to 1 to 5 vent holes. For example, the bronchial valve can be set to 2, 3, 4, 5 or more. The umbrella valve can be installed on the valve body and can control the gas to pass through the bronchial valve in one direction.

[0007] The umbrella valve structure described in this utility model is the first application of its kind in bronchial valves. The umbrella valve design enables the valve to automatically open or close the exhaust port according to changes in air pressure, ensuring effective one-way exhaust function.

[0008] In this utility model, as one embodiment, the valve body is a cylindrical structure, the valve body includes a support part and an internal cavity, the support part extends inward to form an interlaced reinforcing rib structure, and the valve body as a whole is foldable and can be compressed or released adaptably.

[0009] In this utility model, as one of the implementation schemes, the silicone body is integrally molded from medical-grade silicone rubber through an injection molding process.

[0010] In this utility model, as one embodiment, a cylinder and an exhaust hole are formed inside the valve body. The cylinder is used to install the umbrella handle of the umbrella valve, and the umbrella handle can rotate inside the cylinder.

[0011] In this utility model, as one of the embodiments, the outer wall of the valve body is provided with conical teeth, and the tip of the conical teeth faces the outside of the valve.

[0012] In this invention, as one embodiment, the conical teeth are fixed to the inner wall of the bronchus by friction, allowing the valve body to move only unidirectionally along the inner wall of the bronchus. The conical tooth structure stably fixes the valve to the airway wall, preventing displacement after implantation.

[0013] In this utility model, as one embodiment, the umbrella valve includes an umbrella cover and an umbrella handle connected to the umbrella cover. After installation, the umbrella cover is located on top of the valve body, and the umbrella handle is located in the cylinder of the valve body.

[0014] In this invention, as one embodiment, the umbrella valve is integrally molded from medical-grade silicone rubber using an injection molding process. Silicone rubber is elastic and can be compressed and placed into the delivery device, thereby enabling targeted implantation.

[0015] In this utility model, as one of the embodiments, the umbrella valve is also provided with an inverted buckle structure. After the umbrella valve is installed, the inverted buckle structure is located at the bottom of the cylinder. The inverted buckle structure can prevent the umbrella valve from coming out of the valve body.

[0016] In this invention, as one of the implementation schemes, when the patient inhales, the umbrella cover fits against the top of the valve body to seal the exhaust hole, thereby preventing gas from passing through; when the patient exhales, the umbrella cover moves along the axial direction of the umbrella handle under the action of air pressure to open the exhaust hole, thereby achieving one-way exhaust.

[0017] The valve described in this utility model is not integrally formed, but rather the umbrella valve and the main body are integrally formed separately and then assembled.

[0018] The umbrella valve described in this utility model has a better one-way sealing effect. When air is drawn in, the gas impacts the umbrella cover from the top. The greater the air pressure, the worse the sealing performance of the duckbill-type one-way valve, while the greater the pressure of the umbrella valve, the better the sealing performance. Attached Figure Description

[0019] Figure 1 Example 1: A schematic diagram of the cross-section of the valve body 1 and the umbrella valve 2 in the bronchus valve of Example 1;

[0020] Figure 2 Example 1: A schematic diagram of the valve body 1 from below;

[0021] Figure 3 Example 1: Schematic diagram of the valve body 1 structure;

[0022] Figure 4 Example 1: Top view of the valve body 1;

[0023] Figure 5 Example 1: A three-dimensional structural diagram of the valve body 1.

[0024] Figure 6 : A bottom view of the umbrella valve 2 structure described in Example 1;

[0025] Figure 7 : Schematic diagram of the umbrella valve 2 described in Example 1;

[0026] Figure 8 : A top view of the umbrella valve 2 described in Example 1;

[0027] Figure 9 Example 1: A three-dimensional structural diagram of the umbrella valve 2.

[0028] Explanation of reference numerals in the attached drawings: 1. Valve body; 11. Reinforcing rib structure; 12. Cylinder; 13. Internal cavity; 2. Umbrella valve; 3. Support part; 4. Conical teeth; 5. Vent hole; 6. Umbrella cover; 7. Umbrella handle; 8. Inverted structure. Detailed Implementation

[0029] The following embodiments are used to further illustrate the present invention, but do not limit the effective scope of the present invention in any way. The following embodiments are only one specific implementation of the present invention, and other similar or comparable implementations or implementations that can be foreseen through the present invention are all within the protection scope of the present invention.

[0030] The materials used in the device in this embodiment are merely illustrative and do not imply that the device can only be made of that material.

[0031] Example 1

[0032] As one of the implementation schemes, this embodiment discloses a one-way valve for an umbrella valve bronchus, such as... Figure 1As shown, its structure mainly includes a valve body 1 and an umbrella valve 2. The valve body 1 has at least one exhaust port 5, which can be set to 2, 3, 5 or more as needed. The umbrella valve 2 can be installed on the valve body 1 or removed. After installation, the umbrella valve 2 can control the gas to pass through the bronchial valve in one direction.

[0033] like Figure 3 As shown, the valve body 1 has a cylindrical structure. In one embodiment, the valve body is integrally molded from medical-grade silicone rubber using an injection molding process. The valve body 1 consists of a support portion 3, an internal cavity 13, and conical teeth 4. The support portion 3 extends inward to form an interlaced reinforcing rib structure 11, thereby forming a cylinder 12 and an exhaust port 5. Figure 4 , Figure 5 As shown, the cylinder 12 is used to install the umbrella handle 7 of the umbrella valve 2, and the umbrella handle 7 can rotate inside the cylinder 12.

[0034] like Figure 3 As shown, the internal cavity 13 is used to hold the umbrella handle. When exhaling, the air in the lungs enters the exhaust port through the cavity, lifts the umbrella cover, and is then expelled.

[0035] In this embodiment, the conical teeth 4 are disposed on the outer wall of the support part 3, and the tip of the conical teeth 4 faces the outside of the valve. The outer wall of the bronchial valve is in close contact with the inner wall of the bronchus. The valve body 1 is fixed to the inner wall of the bronchus by friction through the conical teeth 4.

[0036] As attached Figure 5 As shown, this embodiment has four vent holes. The vent hole 5 penetrates the entire valve body 1. Although the vent hole is at the top, it is connected to the internal cavity of the valve body. During exhalation, the internal gas pushes up the umbrella valve through the vent hole, thereby expelling the gas. During inhalation, the external gas presses against the umbrella cover. Because the umbrella cover blocks the vent hole, the gas cannot enter, thus achieving a one-way seal.

[0037] like Figure 7 As shown, the umbrella valve is a one-way valve structure. As one embodiment, the umbrella valve 2 is integrally molded from medical-grade silicone rubber using an injection molding process. The umbrella valve 2 includes an umbrella cover 6 and an umbrella handle 7 connected to the umbrella cover 6. Figure 7 This is merely a schematic diagram of the umbrella valve structure in this embodiment. Those skilled in the art can adjust the appropriate size and proportion of the umbrella valve or change the materials used to manufacture the umbrella valve according to specific actual requirements.

[0038] like Figure 1As shown, the umbrella valve is installed on the valve body 1, with the umbrella handle 7 installed inside the cylinder 12 of the valve body 1. After the umbrella valve 2 is installed, the umbrella cover 6 is located on top of the valve body 1. The cylinder 12 is a cylindrical three-dimensional structure, and the umbrella handle 7 can rotate or slide within the cylinder 12. The umbrella valve can control the unidirectional flow of gas through the bronchial valve. The umbrella valve 2 can be detached from the valve body 1. After detachment, the valve body 1 is as follows: Figure 5 As shown.

[0039] like Figure 7 As shown, the umbrella valve 2 in this embodiment is also provided with an inverted buckle structure 8. After the umbrella valve is installed, the inverted buckle structure 8 is located at the bottom of the cylinder 12. The inverted buckle structure 8 can prevent the umbrella valve from coming out of the valve body 1. Because the umbrella valve is made of silicone, it is elastic. When exhaling, the gas pushes up the umbrella cover 6 through the exhaust hole. At this time, the umbrella handle 7 will extend as a whole. When not exhaling, the umbrella handle 7 retracts, and the umbrella cover 6 blocks the exhaust hole. Therefore, the design of the inverted buckle structure 8 will not hinder the unidirectional passage of gas through the valve.

[0040] In use, the delivery device first inserts the one-way valve into the bronchus of the target lung segment through a bronchoscope. The one-way valve is stably fixed to the airway wall by the supporting force of the support part 3 and the friction of the conical teeth 4. When the patient inhales, the umbrella cover 6 is in contact with the valve body 1, and no air passes through; when the patient exhales, the umbrella cover 6 moves upward, and air is discharged from the exhaust port 5, thereby achieving lung volume reduction.

[0041] As attached Figure 1-9 As shown, in this embodiment, both the valve body and the umbrella valve are integrally molded from medical-grade silicone rubber. When using this one-way valve, the delivery device first inserts the one-way valve into the bronchus of the target lung lobe through a bronchoscope. One-way ventilation is achieved through different coordination states of the valve body 1 and the umbrella valve 2 during inhalation, gradually expelling residual air from the target lung lobe and reducing lung volume. Specifically, during inhalation, the umbrella cover 6 adheres to the top of the valve body 1, sealing the exhaust port 5. During exhalation, the umbrella cover 6 moves axially along the handle 7 under air pressure to open the exhaust port 5, achieving one-way exhaust. During this process, the healthy lung lobe gradually expands, playing a compensatory role and restoring the patient's normal lung function. The outer surface of the valve body has conical teeth, which can stably fix it to the airway wall and prevent displacement.

Claims

1. A bronchial valve with an umbrella-shaped flap, characterized in that, It includes a valve body (1) and an umbrella valve (2). The valve body (1) has at least one vent hole (5). The umbrella valve (2) is installed on the valve body (1) and can control the gas to pass through the bronchial valve in one direction.

2. The umbrella valve bronchus valve according to claim 1, characterized in that, The valve body (1) is a cylindrical structure. The valve body (1) includes a support part (3) and an internal cavity (13). The support part (3) extends inward to form an interlaced reinforcing rib structure (11). The whole structure is foldable and can be compressed or released adaptably.

3. The umbrella valve bronchus valve according to claim 2, characterized in that, The valve body (1) is integrally molded from medical silicone rubber through injection molding.

4. The umbrella valve bronchus valve according to claim 2, characterized in that, The valve body (1) has a cylinder (12) and an exhaust hole (5) inside. The cylinder (12) is used to install the umbrella handle (7) of the umbrella valve (2). The umbrella handle (7) rotates inside the cylinder (12).

5. The umbrella valve bronchus valve according to claim 1, characterized in that, The outer wall of the valve body (1) is provided with conical teeth (4), and the tip of the conical teeth (4) faces the outside of the valve.

6. The umbrella valve bronchus valve according to claim 5, characterized in that, The conical teeth (4) are fixed to the inner wall of the bronchus by friction, so that the valve body (1) moves unidirectionally along the inner wall of the bronchus.

7. The umbrella valve bronchus valve according to claim 1, characterized in that, The umbrella valve (2) includes an umbrella cover (6) and an umbrella handle (7) connected to the umbrella cover (6). After installation, the umbrella cover (6) is located on the top of the valve body (1), and the umbrella handle (7) is located in the cylinder (12) of the valve body (1).

8. The umbrella valve bronchus valve according to claim 7, characterized in that, The umbrella valve (2) is integrally molded from medical silicone rubber through injection molding.

9. The umbrella valve bronchus valve according to claim 7, characterized in that, The umbrella valve (2) is also provided with an inverted structure (8). After the umbrella valve (2) is installed, the inverted structure (8) is located at the bottom of the cylinder (12). The inverted structure (8) is used to prevent the umbrella valve (2) from coming out of the valve body (1).

10. The umbrella valve bronchus valve according to claim 7, characterized in that, When the patient inhales, the umbrella cover (6) fits against the top of the valve body (1) to seal the exhaust hole (5), thereby preventing gas from passing through; when the patient exhales, the umbrella cover (6) moves axially along the umbrella handle (7) under the action of air pressure to open the exhaust hole (5) and realize one-way exhaust.

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