Breathing training device for chronic obstructive pulmonary disease

Abstract

This invention provides a respiratory training device for chronic obstructive pulmonary disease that ensures airtightness and stabilizes the resistance accuracy of respiratory training. [Solution] The respiratory training device for chronic obstructive pulmonary disease comprises a training component 1, a mask 2 equipped with a clawed elastic restricting piece, an annular restricting block 3 with a trapezoidal cross-section, and a sealing bag. The elastic restricting piece 4 slides and expands along the inclined surface of the annular restricting block, accumulating elastic restoring force. After overcoming the inclined surface, it returns inward due to the elastic restoring force, uniformly pressing and expanding the sealing bag to completely fill the gap in the connection. This invention prevents loosening of the connection through the cooperation of the elastic restricting piece and the sealing bag.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical equipment, and specifically relates to a breathing training apparatus for use by patients with chronic obstructive pulmonary disease.

Background Art

[0002] Most connection structures of conventional breathing training apparatuses for chronic obstructive pulmonary disease adopt a simple plug-in type or screw fastening structure, which is inferior in assembly stability. In the process of long-term continuous use of the apparatus, the impact from the patient's respiratory airflow and the micro-vibration of the apparatus constantly act on the connection, resulting in looseness and assembly gaps at the connection parts, which leads to airflow leakage from the training path. Such problems fundamentally damage the sealed environment for breathing training, cause continuous fluctuation of training resistance and a significant decrease in accuracy, making it impossible to provide a patient with a stable standardized rehabilitation training environment, and greatly impairing the respiratory rehabilitation effect for chronic obstructive pulmonary disease.

Summary of the Invention

Problem to be Solved by the Invention

[0003] In view of the above-mentioned deficiencies existing in the prior art, an object of the present invention is to provide a breathing training apparatus for chronic obstructive pulmonary disease.

Means for Solving the Problem

[0004] To achieve the above object, the technical measures of the present invention are as follows.

[0005] A respiratory training device for chronic obstructive pulmonary disease, comprising: a training component having one end detachably connected to a mask via an external tube; an annular regulating block fixed to the outside of the connection port of the training component that detachably connects to the mask, having a trapezoidal cross-section, with the narrow end of the trapezoid positioned toward the connection port to the mask; and a plurality of hook-shaped elastic regulating pieces fixed to the outside of the mask, with the hook portion facing toward the connection port of the training component, and the area of ​​the space formed by the plurality of hook-shaped elastic regulating pieces being the area enclosed by the trapezoidal long side of the annular regulating block and the trapezoidal short side The device comprises hook-shaped elastic restricting pieces that fit within an enclosed area and intersect with the inclined surface of an annular restricting block on the assembly movement path of the training component and the mask, and a seal bag disposed between the connection ends of the training component and the mask. The device is characterized in that, when the hook-shaped elastic restricting pieces slide along the inclined surface of the annular restricting block, the enclosed area of ​​the multiple hook-shaped elastic restricting pieces expands and the elastic potential increases, and at the moment the hook-shaped elastic restricting pieces overcome the inclined surface, they return to their original position due to elastic restoring force, generating a component force toward the connection opening, pressing on the seal bag, and causing it to expand and stretch.

[0006] Preferably, four hook-shaped elastic restricting pieces are installed, and the four hook-shaped elastic restricting pieces are evenly arranged in a ring shape around the connection port.

[0007] Preferably, when the hook-shaped elastic restricting piece is engaged, the contact area between the hook-shaped elastic restricting piece and the annular restricting block is at least half the area of ​​the trapezoidal long side of the annular restricting block.

[0008] Preferably, the sealing bag covers at least the entire connection surface between the training component and the mask.

[0009] Preferably, an engagement groove is provided on the engagement contact surface between the annular regulating block and the hook-shaped elastic regulating piece, the groove conforming to the shape of the front end of the hook-shaped elastic regulating piece. [Effects of the Invention]

[0010] Compared to conventional technology, this invention offers the following beneficial effects.

[0011] 1. By providing a self-locking structure consisting of a trapezoidal annular restricting block and a ring-shaped arrangement of hook-shaped elastic restricting pieces, the assembly stability of the device connection is greatly improved. The axial fastening force generated when the elastic restricting pieces deform and restore maintains a tight seal between the connection surfaces, preventing loosening of the connection during training and ensuring the structural integrity and stability of the respiratory training pathway.

[0012] 2. By providing a fully covered seal bag pressure sealing structure on the connection end face, the airtightness of the device connection is significantly improved. The radial pressure generated by the restoration of the regulating piece uniformly deforms and expands the seal bag, completely filling the assembly gap and assembly dead space to block airflow leakage, stably maintaining the accuracy of training resistance, and optimizing the standardized implementation effect of respiratory training for chronic obstructive pulmonary disease. [Brief explanation of the drawing]

[0013] The disclosures of this invention will be explained with reference to the drawings. Please understand that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In addition, the same reference numerals in the drawings refer to the same component.

[0014] [Figure 1] This is a schematic diagram of the overall three-dimensional structure of the respiratory training device for chronic obstructive pulmonary disease according to the present invention. [Figure 2] This is a schematic diagram of the cross-sectional plan structure of the present invention. [Figure 3] This is an enlarged 3D schematic diagram of area A in Figure 2. [Figure 4] This is an enlarged 3D schematic diagram of area B in Figure 3. [Modes for carrying out the invention]

[0015] Hereinafter, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings of the embodiments of the present invention. It goes without saying that the described embodiments are only some embodiments of the present invention, rather than all embodiments. It also goes without saying that, based on the embodiments of the present invention, any other embodiment obtained by a person skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

Example

[0016] A detailed description will be given with reference to FIGS. 1 to 4.

[0017] The breathing training device for chronic obstructive pulmonary disease according to the present invention includes a training component 1, a mask 2, an annular restricting block 3, a plurality of hook-shaped elastic restricting pieces 4, and a sealing bag 5.

[0018] One end of the training component 1 is detachably connected to the mask 2 via an external connecting pipe.

[0019] The annular restricting block 3 is fixed to the outside of a connection port of the training component 1 that is detachably connected to the mask 2, has a trapezoidal cross-section, and is arranged such that the narrow end of the trapezoid faces the connection end with the mask 2.

[0020] The plurality of hook-shaped elastic restricting pieces 4 are fixed to the outside of the mask 2, and hook portions thereof face the connection port of the training component 1. The area of the space enclosed by the plurality of hook-shaped elastic restricting pieces 4 is between the area enclosed by the long trapezoidal side and the area enclosed by the short trapezoidal side of the annular restricting block 3. On the assembly movement path of the training component 1 and the mask 2, each hook-shaped elastic restricting piece 4 intersects with the inclined surface of the annular restricting block 3.

[0021] The sealing bag 5 is arranged between the connection ends of the training component 1 and the mask 2.

[0022] In operation, when the hook-shaped elastic restriction pieces 4 slide along the inclined surface of the annular restriction block 3, the enclosed area formed by the plurality of hook-shaped elastic restriction pieces 4 expands, and the elastic potential increases. The moment the hook-shaped elastic restriction pieces 4 climb over the inclined surface, they restore under the action of elastic restoring force, generate a component force directed toward the connection port, press the sealing bag 5, and cause it to expand and stretch.

[0023] To be specific, the present device consists of five core components: a training component 1, a mask 2, an annular restriction block 3, a plurality of hook-shaped elastic restriction pieces 4, and a sealing bag 5. Through mutual cooperation between each component, rapid assembly, sealing and stable use functions of the device are realized.

[0024] The training component 1 is the core training main body of the present device, and is a core functional member that realizes inspiratory and expiratory resistance training for patients with chronic obstructive pulmonary disease. An external connection tube is communicated and fixed to one end of the training component 1, and the training component 1 and the mask 2 are detachably assembled and communicated with each other via the external connection tube. This enables rapid separation and combination of the training component 1 and the mask 2, facilitating cleaning, disinfection and component replacement of the device by medical staff and patients. The device is also suitable for storage and carrying, and can accommodate rehabilitation training in multiple scenarios such as home and hospital.

[0025] Specifically, in the present embodiment, the mask 2 is formed of a flexible medical silicone material that fits the contour of the human mouth and nose, and has an overall mask shape. It stably adheres to the patient's mouth and nose area, and forms a closed airway for breathing training. A communication port is provided at the inner center of the mask 2, and airflow can circulate smoothly by aligning and connecting the communication port with the external connection tube. In addition, the flexible material prevents compression damage to the face during long-time wearing, and meets the use requirements for long-term rehabilitation training of patients with chronic obstructive pulmonary disease.

[0026] The ring-shaped regulating block 3 is fixed to the outer wall of the connection port where the training component 1 and the outer pipe connect. The overall cross-section of the ring-shaped regulating block 3 has an equilateral trapezoidal structure, and its shape is regular, resulting in uniform load bearing. The narrow trapezoidal end of the ring-shaped regulating block 3 faces the connection side between the training component 1 and the mask 2, while the wide trapezoidal end is tightly fixed to the outer wall of the connection port of the training component 1. This ensures the robustness and stability of the connection of the ring-shaped regulating block 3 itself, preventing displacement or detachment due to load bearing.

[0027] The annular regulating block 3 is integrally injection-molded from rigid medical-grade plastic and is fixed to the outer wall of the connection port of the training part 1 by heat welding, so there are no assembly gaps at all. It has high structural strength and is resistant to deformation and detachment even when subjected to repeated elastic pressing and engaging loads, and can stably cooperate with the hook-shaped elastic regulating piece 4 to perform self-locking operation over a long period of time.

[0028] Multiple hook-shaped elastic restricting pieces 4 are fixed to the outer wall of the mask 2, with all hook tips positioned towards the connection port of the training component 1. The dimensions of the annular area jointly enclosed by the multiple hook-shaped elastic restricting pieces 4 are between the area enclosed by the trapezoidal long side and the area enclosed by the trapezoidal short side of the annular restricting block 3. Along the movement path for aligning and assembling the training component 1 and the mask 2, the inner wall of each hook-shaped elastic restricting piece 4 engages slidably with the inclined surfaces on both sides of the annular restricting block 3, forming the structural foundation for subsequent elastic deformation and restoration engagement.

[0029] It should be specifically noted here that in this embodiment, four hook-shaped elastic restricting pieces 4 are used as the optimal number of pieces to install, and the four hook-shaped elastic restricting pieces 4 are evenly arranged in a ring shape with respect to the central axis of the mask 2. This evenly spaced layout equalizes the load-bearing force in each direction, thus avoiding problems such as connection distortion and poor airtightness caused by uneven load-bearing on one side.

[0030] It should be specifically noted here that four hook-shaped elastic regulating pieces represent the optimal number for implementation. If the number of regulating pieces is less than four, there will be insufficient load support points, reducing engagement stability and making the connection port more prone to loosening and airtight leaks. On the other hand, if the number exceeds four, assembly resistance increases significantly, increasing the assembly burden on patients and medical personnel, as well as raising manufacturing costs. For these reasons, arranging four pieces evenly in a ring shape is the best solution that balances ease of assembly, connection stability, and manufacturing cost-effectiveness.

[0031] Specifically, in this embodiment, the hook-shaped elastic restricting piece 4 is integrally molded from highly elastic medical rubber, and the bottom is vulcanized and fixed to the outer wall of the mask 2 to ensure connection strength. It does not break or fall off even when subjected to repeated bending deformation, possesses excellent elastic recovery properties, and can stably repeat elastic deformation and recovery over a long period of time, resulting in a long service life.

[0032] It should be specifically noted here that, in a fully engaged state, the contact area between a single hook-shaped elastic restricting piece 4 and the inclined surface of the annular restricting block 3 is more than half the contact area on one side of the trapezoidal long side of the annular restricting block 3. This structural design ensures sufficient engagement contact, expands the force-receiving contact area to avoid stress concentration and structural wear due to point contact, and simultaneously improves the engagement fastening force to guarantee the fixing stability of the connection port.

[0033] It should be specifically noted that if the contact area during engagement falls below half the area of ​​the long side of the trapezoidal ring-shaped regulating block 3, the cooperative gap between the regulating piece and the ring-shaped regulating block 3 becomes excessive, reducing the accuracy of engagement positioning. During training, vibrations caused by respiratory airflow can cause the device to loosen and shift position, leading to airtight leaks and a significant decrease in the resistance accuracy of respiratory training, making it impossible to meet the rehabilitation criteria for chronic obstructive pulmonary disease.

[0034] The sealing bag 5 is positioned between the connection end faces of the training component 1 and the mask 2, i.e., at the assembly gap between them, filling the assembly gap and achieving airtightness at the end faces. Based on the limitation of claim 4, the covering area of ​​the sealing bag 5 completely covers at least the entire connection surface of the training component 1 and the mask 2, preventing the creation of an airtight gap. This completely seals the gap at the connection point between the two, fundamentally suppressing airflow leakage during breathing training, ensuring airtightness during breathing training, and enabling precise control of training resistance.

[0035] Specifically, in this embodiment, the seal bag 5 has a ring-shaped hollow elastic seal structure, made of flexible and highly elastic airtight medical silicone, which is soft and has excellent deformation performance, as well as excellent aging resistance and airtightness retention, making it suitable for repeated pressing and deformation over a long period of time. The seal bag 5 is fixed to the connecting end face of the training part 1 with adhesive and forms an integrated structure with the training part, so during assembly, it only needs to be directly attached to the end face of the mask 2, eliminating the need for additional positioning work and providing excellent operability.

[0036] An engagement groove is provided on the engagement contact surface between the annular regulating block 3 and the hook-shaped elastic regulating piece 4, which matches the hook body structure at the front end of the hook-shaped elastic regulating piece 4. The dimensions and arc of the engagement groove perfectly match those of the hook body at the front end of the regulating piece, achieving precise alignment and engagement.

[0037] Specifically, in this embodiment, the engagement groove has an arc-shaped recessed groove structure and is provided at the ends of the inclined surfaces on both sides of the annular regulating block 3, corresponding one-to-one with the four hook-shaped elastic regulating pieces. This allows each regulating piece to independently and precisely fit into its corresponding engagement groove, achieving high-precision positioning through multi-point simultaneous fastening.

[0038] The specific assembly and operation procedures for this device are as follows.

[0039] When assembling the breathing training device, the connection ports of the mask 2 and the training component 1 are aligned, and the mask 2 is pushed inward along the axial direction. At this time, the hook tips of the four hook-shaped elastic restricting pieces 4 first contact the trapezoidal inclined surface of the annular restricting block 3, and as the pushing continues, the restricting pieces slide and expand outward along the inclined surface. Since the area enclosed by the multiple hook-shaped elastic restricting pieces 4 fits between the area of ​​the long and short sides of the trapezoid of the annular restricting block 3, the four restricting pieces simultaneously elastically expand and deform outward during the sliding process, the overall enclosed area gradually expands, and the elastic potential of the restricting pieces themselves continuously accumulates and increases.

[0040] The moment the hook-shaped elastic restricting piece 4 overcomes the maximum outer diameter position on the inclined surface of the annular restricting block 3 due to its indentation displacement, the restricting piece loses its external pressure restraint and quickly returns to its inward position due to its own elastic action. At this time, the hook tip of the restricting piece precisely fits into the engagement groove of the annular restricting block 3, and the self-locking engagement and fixation of the two is completed.

[0041] It should be specifically noted here that two types of forces are generated simultaneously during the restorative engagement of the restricting pieces. One is an axial fastening force, which causes the mask 2 and training part 1 to be continuously pressed axially, completely eliminating the assembly gap, increasing the overall connection robustness, and preventing the connection from coming loose during training. The other is a radial inward pressing force, which causes the four restricting pieces to be simultaneously pushed inward, continuously applying a uniform pressing force to the seal bag 5 positioned on the connection end face.

[0042] Specifically, in this embodiment, when the seal bag 5 receives a uniform pressing force, it elastically deforms in all directions, compressing its overall thickness and causing its edges to expand and stretch outward. This completely fills the minute gaps and assembly dead spaces present at the connection point between the training part 1 and the mask 2, fundamentally blocking airtight leaks. The flexible elastic deformation characteristics of the seal bag 5 absorb assembly errors and compensate for irregularities on the connection end surfaces that occur during processing and assembly, further improving the airtight performance of the entire device.

[0043] When disassembling the device, the mask 2 can be separated from the training component 1 by simply opening the four hook-shaped elastic restricting pieces 4 outwards by hand, releasing them from the engagement grooves, and expanding them, which then pushes them in the opposite direction. Disassembly can be performed easily without tools, making it suitable for daily cleaning, disinfection, and replacement of consumable parts.

[0044] As described above, this device achieves rapid assembly and disassembly of the respiratory training device connection port, robust fastening, and highly efficient airtightness through the elastic self-locking cooperative structure of the trapezoidal annular regulating block 3 and the annular arrangement of hook-shaped elastic regulating pieces 4, as well as the press-expand airtight structure of the seal bag 5. It effectively eliminates the shortcomings of conventional respiratory training devices for chronic obstructive pulmonary disease, such as loose connections, poor airtightness, complicated assembly and disassembly, and reduced training accuracy. Its structural design is rational and highly practical, making it suitable for long-term rehabilitation training for patients with chronic obstructive pulmonary disease.

[0045] The technical scope of this invention is not limited to the contents described in the above specification. Those skilled in the art can make various modifications and alterations to the above embodiments without departing from the technical spirit of this invention, and all such modifications and alterations fall within the scope of protection of this invention. [Explanation of Symbols]

[0046] 1 Training Parts 2 masks 3 Ring road block 4. Hook-shaped elastic restricting piece 5 seal bags

Claims

1. A training component, one end of which is detachably connected to a mask via an external tube, An annular restricting block fixed to the outside of the connection port that detachably connects to the mask of the training component, the annular restricting block having a trapezoidal cross-section, with the narrow trapezoidal end positioned toward the connection end with the mask, A plurality of hook-shaped elastic restricting pieces are fixed to the outside of the mask, the hook portion facing the connection port of the training component, the area of ​​the space formed by the plurality of hook-shaped elastic restricting pieces is between the area enclosed by the trapezoidal long side and the area enclosed by the trapezoidal short side of the annular restricting block, and each hook-shaped elastic restricting piece intersects with the inclined surface of the annular restricting block on the assembly movement path of the training component and the mask, A sealing bag is placed between the connection ends of the training component and the mask, Equipped with, As the hook-shaped elastic restricting piece slides along the inclined surface of the annular restricting block, the area enclosed by the multiple hook-shaped elastic restricting pieces expands, increasing the elastic potential. The moment the hook-shaped elastic restricting piece overcomes the inclined surface, it returns to its original position due to the elastic restoring force, generating a component force toward the connection port, pressing against the seal bag, causing it to expand and stretch. A respiratory training device for chronic obstructive pulmonary disease, characterized by the following features.

2. Four of the aforementioned hook-shaped elastic restricting pieces are provided, and the four hook-shaped elastic restricting pieces are evenly arranged in a ring shape around the connection port. The respiratory training device for chronic obstructive pulmonary disease according to feature 1.

3. When the hook-shaped elastic restricting piece is engaged, the contact area between the hook-shaped elastic restricting piece and the annular restricting block is more than half the area of ​​the trapezoidal long side of the annular restricting block. The respiratory training device for chronic obstructive pulmonary disease according to feature 2.

4. The sealing bag covers at least the entire connection surface between the training component and the mask. The respiratory training device for chronic obstructive pulmonary disease according to feature 3.

5. An engagement groove is provided on the engagement contact surface between the annular regulating block and the hook-shaped elastic regulating piece, the groove conforming to the shape of the front end of the hook-shaped elastic regulating piece. The respiratory training device for chronic obstructive pulmonary disease according to feature 4.

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