Excitation filter mouthpiece and pulse oscillation lung function instrument

Abstract

The utility model relates to an excitation filter mouthpiece and pulse oscillation lung function instrument, wherein the excitation filter mouthpiece comprises an integrated tube body, the tube body comprises a filtering part, a main tube part, a mouthpiece part and a connecting tube, the filtering part is located at one end of the main tube part, the mouthpiece part is located at the other end of the main tube part, and the connecting tube is located at the other end of the main tube part. The caliber of the filtering part is larger than that of the main pipe part, the filtering part is connected with a filtering assembly, and the connecting pipe is used for exhausting exhaled gas. The filter has the advantages of being good in air tightness, convenient and fast to use and capable of effectively conducting filtering and reducing cross infection.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field, concretely relates to a kind of excitation filter mouthpiece and impulse oscillation lung function instrument. BACKGROUND

[0002] With the importance attached to the diagnosis and treatment of respiratory diseases, lung function testing has become increasingly important in clinical medicine. Lung function instruments are commonly used to assess lung health, helping doctors diagnose chronic obstructive pulmonary disease (COPD), asthma, pulmonary fibrosis and other diseases. During the lung function test, using an excitation filter mouthpiece is an important device to ensure test accuracy and safety.

[0003] Traditional mouthpiece structure is relatively simple, often assembled by multiple components, but the combination of multiple components may affect air tightness due to insecure connection, and fixing and adjustment are required during use, increasing the difficulty of use, and the multi-component structure is difficult to clean thoroughly, which can easily lead to cross-infection risk. SUMMARY

[0004] The utility model aims at providing a kind of excitation filter mouthpiece and impulse oscillation lung function instrument with good air tightness, convenient to use, can effectively filter and reduce cross-infection.

[0005] An excitation filter mouthpiece includes an integrally formed tube, which includes a filter portion, a main tube portion, a mouthpiece portion, and a connecting tube. The filter portion is located at one end of the main tube portion, and the mouthpiece portion is located at the other end of the main tube portion. The filter portion has a larger diameter than the main tube portion. The filter portion is connected to a filter assembly. The connecting tube is used to exhaust exhaled gas.

[0006] In the above scheme, the integrally designed tube includes a filter portion, a main tube portion, a mouthpiece portion, and a connecting tube, thereby improving air tightness and eliminating the need for multi-component assembly, making it more convenient to use. The larger diameter of the filter portion than the main tube portion reduces gas resistance and increases the volume of the filter assembly. The filter assembly is used to achieve efficient filtration of the excitation filter mouthpiece, effectively blocking bacteria, viruses, and other pollutants, ensuring clean air intake for patients. By measuring the composition and flow rate of exhaled gas at the connecting tube position, the lung function of the patient can be evaluated.

[0007] Further, the filter portion is in the shape of a circular truncated cone.

[0008] In the above scheme, the filter portion is designed in the shape of a circular truncated cone, which facilitates the integrally molding of the tube and ensures that the diameter of the filter portion is larger than that of the main tube portion.

[0009] Further, the filter assembly comprises filter cotton and a limiting cylinder, a stepped portion is formed on the inner side of the filter portion, the filter cotton abuts against the stepped portion, and the limiting cylinder is arranged in the filter portion and abuts against the filter cotton.

[0010] In the above scheme, the stepped portion formed on the inner side of the filter portion is used to limit the filter cotton, so that the filter cotton can be fixed in the filter portion by arranging the limiting cylinder in the filter portion. Since the caliber of the filter portion is increased, the filter cotton with a larger diameter can be selected, and in the case of the same resistance, the filter cotton with a higher gram weight can be used to reduce the occurrence of mist leakage and reduce drug waste and cross infection.

[0011] Further, a first through hole is formed in the middle of the limiting cylinder, the limiting cylinder comprises a cylinder body and a clamping portion, the cylinder body is arranged in the filter portion, and the clamping portion is clamped with the outer side wall of the filter portion.

[0012] In the above scheme, the first through hole in the middle of the limiting cylinder allows gas to flow, ensuring that air can effectively pass through the filter cotton during breathing, thereby improving the filtering effect and removing pollutants or pathogens in the air. By clamping the clamping portion with the outer side wall of the filter portion, the stability of the entire structure can be enhanced, ensuring that the limiting cylinder does not loosen or shift during use, thereby maintaining its effective filtering performance.

[0013] Further, the connecting pipe comprises a cylindrical connecting interface, and the connecting pipe is provided with a second through hole communicating with the main pipe portion.

[0014] In the above scheme, the connecting interface can connect the connecting pipe with an instrument for testing lung function, and gas is discharged from the second through hole, so that the lung capacity, ventilation volume, airflow velocity and other respiratory parameters of the patient can be accurately measured, helping doctors to evaluate the lung health status.

[0015] Further, the mouthpiece portion is in the shape of a flat ellipse, and two symmetrical protruding structures are arranged at the end of the mouthpiece portion.

[0016] In the above scheme, the flat elliptical shape of the mouthpiece portion better fits the shape of the lips, reduces the pressure points during long-term use, and provides a more comfortable user experience. The protruding structure allows the user to better fix the mouthpiece portion when biting, ensuring that it does not loosen or fall off during use.

[0017] Further, the main pipe portion is provided with a pressure measuring interface at one end, the pressure measuring interface is provided with a plurality of annular protrusions, and the pressure measuring interface is provided with a pressure measuring hole communicating with the main pipe portion.

[0018] In the above scheme, the pressure measuring interface is used for connecting with the sensor for detecting pressure, so that the pressure can be monitored in real time and accurately, and the annular protrusions formed in the pressure measuring interface can reduce the interference of the external environment on the airflow pressure, thereby improving the air tightness of the inspiratory filter mouthpiece.

[0019] Further, the pipe body is provided with a connecting base, the connecting base is located on one side of the pressure measuring hole, and a connecting cover body is arranged on the connecting base, and a connecting hole communicating with the pressure measuring interface is formed in the connecting cover body.

[0020] In the above scheme, the connecting base is integrally formed with the pipe body, the inspiratory filter mouthpiece can be mechanically connected with the instrument for testing lung function through the connecting cover body and the connecting base, and the connecting hole communicating with the pressure measuring interface is formed in the connecting cover body, so that the inspiratory filter mouthpiece can be connected with the instrument without affecting the monitoring of the pressure.

[0021] Further, the connecting cover body is further provided with a clamping hole.

[0022] In the above scheme, the clamping hole can be designed to facilitate the user to disassemble and replace the inspiratory filter mouthpiece without tools, thereby reducing the operation time and complexity and improving the use efficiency of the user.

[0023] A kind of impulse oscillation lung function instrument, comprising the inspiratory filter mouthpiece of any one of the above schemes.

[0024] In the above scheme, the inspiratory filter mouthpiece is part of the impulse oscillation lung function instrument, can ensure that all air flows are accurately measured by the device, reduces drug waste, and improves drug delivery efficiency. At the same time, the gas waste of the device is reduced, the economy and efficiency of detection and treatment are improved, especially when using high-cost test gas and treatment drugs. This design not only ensures the sterile state of each test and treatment, but also protects the safety of patients and medical staff, especially in a hospital environment with multiple patients.

[0025] The inspiratory filter mouthpiece and the impulse oscillation lung function instrument have the beneficial effects of good air tightness, convenient use, effective filtering and cross-infection reduction. The integrated pipe body includes a filter part, a main pipe part, a mouthpiece part and a connecting pipe, thereby improving the air tightness, eliminating the need for multiple accessory assembly, and making the use more convenient. The diameter of the filter part is greater than that of the main pipe part, which can reduce the resistance of the gas and increase the filtering volume of the filter assembly. The filter assembly is used to realize efficient filtering of the inspiratory filter mouthpiece, effectively block bacteria, viruses, particles and other pollutants, and ensure that the inhaled gas of the patient is clean. By measuring the composition and flow of the exhaled gas at the connecting pipe position, the lung function of the patient can be evaluated. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A schematic exploded view of a bite mouth of an inspiratory filter according to an embodiment.

[0027] Figure 2 A schematic exploded view of a filter assembly according to an embodiment.

[0028] Figure 3 A schematic view of the inside of a filter part and a connecting cover according to an embodiment.

[0029] BRIEF DESCRIPTION OF DRAWINGS 1, tube body; 11, filter part; 12, main tube part; 13, bite mouth; 131, protruding structure; 14, connecting tube; 141, connecting interface; 2, filter assembly; 21, limiting cylinder; 211, cylinder body; 212, clamping part; 22, filter cotton; 3, first through hole; 4, second through hole; 5, pressure measuring interface; 51, annular protrusion; 6, pressure measuring hole; 7, connecting base; 8, connecting cover; 81, connecting hole; 82, clamping hole. DETAILED DESCRIPTION

[0030] The inspiratory filter bite mouth and the impulse oscillation lung function instrument according to the present application will be described in further detail below with reference to specific embodiments and the accompanying drawings.

[0031] As shown in Figures 1 to 3 A preferred embodiment of the inspiratory filter bite mouth according to the present application comprises a one-piece tube body 1, which comprises a filter part 11, a main tube part 12, a bite mouth part 13, and a connecting tube 14. The filter part 11 is located at one end of the main tube part 12, and the bite mouth part 13 is located at the other end of the main tube part 12. The filter part 11 has a larger diameter than the main tube part 12. The filter part 11 is connected with a filter assembly 2. The connecting tube 14 is used to discharge exhaled gas. The one-piece tube body 1 comprises the filter part 11, the main tube part 12, the bite mouth part 13, and the connecting tube 14, which avoids air leakage, insufficient pulling force, and other problems caused by assembly, thereby improving air tightness, eliminating the need for multi-component assembly, making the device easier to use, greatly simplifying the installation and replacement process of the device, taking into account the needs of multiple patients, supporting quick replacement and simple installation operation, reducing the number of operation steps and time, improving operation efficiency, and avoiding inaccurate test and treatment results caused by component connection problems. At the same time, the manufacturing cost and procurement cost of the components are reduced, making the hospital more economical and efficient when maintaining and using the device.

[0032] The larger diameter of filter section 11 than main section 12 reduces gas resistance, ensuring that the gas resistance does not exceed 150 PA at a flow rate of 30 L. This also increases the volume filtered by filter assembly 2. Filter assembly 2 is used to achieve efficient filtration through the excitation filter mouthpiece, effectively blocking contaminants such as bacteria, viruses, and particulates, ensuring the cleanliness of the patient's inhaled air. By measuring the composition and flow rate of exhaled air at connecting tube 14, the patient's lung function can be assessed. The excitation filter mouthpiece ensures minimal resistance and maximum stability in the airflow path when the pulse oscillatory spirometer measures respiratory impedance. This optimized design reduces data errors caused by airflow fluctuations, ensuring the reliability and accuracy of test results.

[0033] In the above embodiment, as shown in the figure, in some embodiments, the filter portion 11 is truncated cone-shaped. The truncated cone-shaped filter portion 11 is more convenient for integrally forming the tube body 1 and enables the filter portion 11 to have a larger diameter than the main tube portion 12.

[0034] like Figure 1 and Figure 2 As shown, in some embodiments, the filter assembly 2 includes a filter cotton 22 and a limiting cylinder 21. A step is formed on the inner side of the filter portion 11, and the filter cotton 22 abuts against the step. The limiting cylinder 21 is inserted into the filter portion 11 and abuts against the filter cotton 22. The step formed on the inner side of the filter portion 11 is used to limit the filter cotton 22. In this way, inserting the limiting cylinder 21 into the filter portion 11 can fix the filter cotton 22 in the filter portion 11. Since the diameter of the filter portion 11 is increased, the filter cotton 22 can also use a larger diameter filter cotton 22, which increases the effective filtering area of ​​the filter cotton 22, reduces resistance, and improves the quality of the filter cotton 22, so that resistance and mist leakage are well balanced. Under the condition of the same resistance, a higher gram weight filter cotton 22 can be used. Here, the filter cotton 22 is at least 200 grams, so as to reduce the occurrence of mist leakage, reduce drug waste and reduce cross infection.

[0035] Specifically, appropriate filter cotton 22 can be selected according to actual requirements, or multiple layers of filter materials and antibacterial coatings can be used to effectively block pollutants such as bacteria, viruses, and particles, ensuring that the gas inhaled by the patient is clean.

[0036] like Figure 1 and Figure 2As shown in some embodiments, the limiting cylinder 21 is provided with a first through hole 3 in the middle, and the limiting cylinder 21 includes a cylinder body 211 and a clamping portion 212. The cylinder body 211 is arranged in the filter portion 11, and the clamping portion 212 is clamped with the outer side wall of the filter portion 11. The first through hole 3 in the middle of the limiting cylinder 21 allows gas to flow, ensuring that air can effectively pass through the filter cotton 22 during breathing, thereby improving the filtering effect and removing pollutants or pathogens in the air. The clamping of the clamping portion 212 with the outer side wall of the filter portion 11 can enhance the stability of the entire structure, ensure that the limiting cylinder 21 does not loosen or shift during use, and thus maintain its effective filtering performance.

[0037] As shown in some embodiments, Figure 1 and Figure 3 As shown in some embodiments, the connecting pipe 14 includes a cylindrical connecting interface 141, and the connecting pipe 14 is provided with a second through hole 4 communicating with the main pipe portion 12. The connecting interface 141 can connect the connecting pipe 14 with an instrument for testing lung function, and gas is discharged from the second through hole 4, so that the lung capacity, ventilation volume, airflow velocity and other respiratory parameters of the patient can be accurately measured, helping doctors to evaluate the lung health status.

[0038] As shown in some embodiments, Figure 1 As shown in some embodiments, the mouthpiece 13 is flat and oval, and the end of the mouthpiece 13 is provided with two symmetrical protruding structures 131. The flat and oval mouthpiece 13 is more in line with the shape of the lips, reduces the pressure point during long-term use, and provides a more comfortable user experience. The protruding structure 131 allows the user to better fix the mouthpiece 13 when biting, ensuring that it does not loosen or fall off during use.

[0039] As shown in some embodiments, Figure 1 and Figure 3 As shown in some embodiments, the main pipe portion 12 is provided at one end with a pressure measuring interface 5, the pressure measuring interface 5 is provided with a plurality of annular protrusions 51, and the pressure measuring interface 5 is provided with a pressure measuring hole 6 communicating with the main pipe portion 12. The pressure measuring interface 5 is used to connect with a sensor for detecting pressure, so as to monitor the pressure in real time and accurately. The formation of the plurality of annular protrusions 51 in the pressure measuring interface 5 can reduce the interference of the external environment on the gas flow pressure, thereby improving the air tightness of the filter mouthpiece.

[0040] Specifically, the pressure measuring interface 5 is subjected to siliconization treatment, ensuring smooth replacement each time and effectively reducing physical damage to the machine. Such a design improves the use efficiency of the equipment and reduces maintenance costs, and is suitable for medical institutions of various scales and frequent detection scenarios.

[0041] As shown in some embodiments, Figure 1 and Figure 3As shown in the drawings, in some embodiments, the pipe body 1 is provided with a connecting base 7 located on one side of the pressure measuring hole 6, and a connecting cover 8 is provided on the connecting base 7, and the connecting cover 8 is provided with a connecting hole 81 in communication with the pressure measuring interface 5. The connecting base 7 is integrally formed with the pipe body 1, and the mechanical connection of the inspiratory filter mouthpiece and the instrument for testing lung function can be realized through the connecting cover 8 and the connecting base 7. The connecting hole 81 in communication with the pressure measuring interface 5 on the connecting cover 8 can realize the connection of the inspiratory filter mouthpiece and the instrument while not affecting the monitoring of the pressure.

[0042] As shown in the drawings, Figure 3 As shown in the drawings, in some embodiments, the connecting cover 8 is also provided with a clamping hole 82. The design of the clamping hole 82 can make the user conveniently disassemble and replace the inspiratory filter mouthpiece without tools, reduce the operation time and complexity, and improve the use efficiency of the user.

[0043] A pulse oscillation lung function instrument comprises the inspiratory filter mouthpiece of any one of the above solutions. The inspiratory filter mouthpiece as part of the pulse oscillation lung function instrument can ensure that all air flows are accurately measured through the device, reduce drug waste, and improve drug delivery efficiency. At the same time, the gas waste of the device is reduced, and the economy and efficiency of detection and treatment are improved, especially when high-cost test gas and treatment drugs are used. This design not only ensures the sterile state of each test and treatment, but also protects the safety of patients and medical staff, especially in a hospital environment with multiple patients.

[0044] The utility model discloses a kind of inspiratory filter mouthpieces and pulse oscillation lung function instrument working principle and process, user bites mouthpiece part 13, ensure that mouthpiece part 13 and oral cavity are tightly closed to avoid air leakage, when user starts to inhale or exhale, gas flows into or flows out through mouthpiece part 13, filter cotton 22 of filter assembly 2 filters most of the pollutants and particulate matters in external gas, exhaled gas flows into the position of pulse oscillation lung function instrument test through connecting pipe 14, to monitor the lung condition and breathing condition of user, the pressure measuring hole 6 on pipe body 1 can monitor airway pressure generated by mouthpiece in real time when user inhales or exhales.

[0045] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0046] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are only used for descriptive purpose and are not to be construed as indicating or implying relative importance or a specific number of the indicated technical features. Therefore, the features defined with "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more than two, unless otherwise specifically defined.

[0047] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] Although the description of the present application is combined with the above specific embodiments, it is obvious that many substitutions, modifications and changes can be made according to the above content for those skilled in the art. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.

Claims

1. A challenge filter mouthpiece, characterized in that, The filter mouthpiece comprises an integrally formed pipe body, the pipe body comprises a filter part, a main pipe part, a mouthpiece part and a connecting pipe, the filter part is located at one end of the main pipe part, the mouthpiece part is located at the other end of the main pipe part, the filter part has a larger diameter than the main pipe part, the filter part is connected with a filter assembly, and the connecting pipe is used for discharging exhaled gas.

2. The bite mouthpiece of claim 1, wherein, The filter part is in the shape of a circular truncated cone.

3. The bite mouthpiece of claim 1, wherein, The filter assembly comprises filter cotton and a limiting cylinder, a stepped part is formed on the inner side of the filter part, the filter cotton abuts against the stepped part, and the limiting cylinder is arranged through the filter part and the filter cotton.

4. The bite mouthpiece of claim 3, wherein, A first through hole is formed in the middle of the limiting cylinder, the limiting cylinder comprises a cylinder body and a clamping part, the cylinder body is arranged through the filter part, and the clamping part is clamped with the outer side wall of the filter part.

5. The bite mouthpiece of claim 1, wherein, The connecting pipe comprises a cylindrical connecting interface, and the connecting pipe is provided with a second through hole which is in communication with the main pipe part.

6. The bite mouthpiece of claim 1, wherein, The mouthpiece part is in the shape of a flat ellipse, and two symmetrical convex structures are arranged at the end of the mouthpiece part.

7. The bite mouthpiece of claim 1, wherein, One end of the main pipe part is provided with a pressure measuring interface, a plurality of annular protrusions are arranged in the pressure measuring interface, and the pressure measuring interface is provided with a pressure measuring hole which is in communication with the main pipe part.

8. The bite mouthpiece of claim 7, wherein, A connecting base is arranged on the pipe body, the connecting base is located at one side of the pressure measuring hole, a connecting cover body is arranged on the connecting base, and the connecting cover body is provided with a connecting hole which is in communication with the pressure measuring interface.

9. The bite mouthpiece of claim 8, wherein, A clamping hole is further formed in the connecting cover body.

10. A impulse oscillometry spirometer, characterized in that, The filter mouthpiece comprises an integrally formed pipe body, the pipe body comprises a filter part, a main pipe part, a mouthpiece part and a connecting pipe, the filter part is located at one end of the main pipe part, the mouthpiece part is located at the other end of the main pipe part, the filter part has a larger diameter than the main pipe part, the filter part is connected with a filter assembly, and the connecting pipe is used for discharging exhaled gas.

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