Pulse oscillation test equipment integrated with lung ventilation test

Abstract

The embodiment of the invention belongs to the technical field of medical apparatus and instruments, and relates to pulse oscillation test equipment integrated with a pulmonary ventilation test, which comprises a breathing parameter measurement assembly, an oscillation wave generator, an airway assembly, a driving mechanism and an air resistance piece, a breathing channel is defined by the air channel assembly, a first port of the breathing channel is connected with the breathing parameter measuring assembly, and a second port of the breathing channel is communicated with air; the oscillatory wave generator is used for sending oscillatory waves to the breathing channel; the driving mechanism is used for driving and changing the configuration state of the air resistance piece in the breathing channel; when the pulse oscillation test is carried out, the air resistance piece is arranged in the breathing channel so as to block airflow, entering and exiting from the breathing channel, of the second port. When a lung ventilation test is carried out, the air resistance piece is arranged outside the breathing channel. According to the technical scheme, lung ventilation and pulse oscillation testing can be achieved, and automatic switching of two functional air path systems can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and more specifically, to a pulse oscillation test device integrated with a lung ventilation test. Background Art

[0002] Pulmonary function tests are an important means of evaluating the health of the respiratory system, among which lung ventilation tests and pulse oscillation tests are two common methods.

[0003] Among them, the pulmonary ventilation test is one of the most common pulmonary function tests, which mainly evaluates the pulmonary ventilation function of the lungs by measuring the volume and flow of the air inhaled and exhaled by the subject. Impulse oscillation test (IOS) is a method of measuring respiratory resistance based on forced oscillation technology (FOT). It applies an oscillation wave (pressure signal) to the respiratory system during natural quiet breathing, and measures and analyzes the corresponding flow changes generated by the respiratory system under the oscillation pressure signal, thereby obtaining information about airway resistance, elasticity and viscosity of lung tissue. The main advantage of FOT is that it is simple, non-invasive and fast to operate, and does not require patients to perform complex breathing movements. Therefore, it is particularly suitable for children, the elderly or patients who cannot cooperate to complete complex breathing tasks.

[0004] Since the IOS test also involves the measurement of the subject's respiratory flow, some pulse oscillation test systems can integrate the lung ventilation function. The airway environment of the pulse oscillation test is different from that of the lung ventilation test, so the direction of the airway needs to be switched when performing different tests. However, the existing pulse oscillation test system with lung ventilation function cannot achieve automatic switching and requires manual operation, which is not convenient to use. Summary of the invention

[0005] The technical problem to be solved by the embodiments of the present application is to integrate lung ventilation and pulse oscillation tests and realize automatic switching between the two test functions.

[0006] To this end, the present application proposes a pulse oscillation test device integrated with a lung ventilation test, comprising:

[0007] Respiratory parameter measurement components, oscillatory wave generators, airway components, drive mechanisms, and air resistance components;

[0008] The airway component defines a breathing channel, a first port of the breathing channel is connected to the breathing parameter measurement component, and a second port of the breathing channel is in communication with air;

[0009] The oscillatory wave generator is used to send oscillatory waves to the respiratory channel;

[0010] The driving mechanism is used to drive and change the configuration state of the air resistance member in the breathing passage;

[0011] Wherein, when performing a pulse oscillation test, the air blocking member is arranged in the breathing passage to block the airflow of the second port in and out of the breathing passage; when performing a lung ventilation test, the air blocking member is arranged outside the breathing passage.

[0012] In some possible implementations, the driving mechanism is in transmission connection with the air resistance member;

[0013] When performing a pulse oscillation test, the air resistance member is driven to move to the second port of the breathing channel;

[0014] When performing a lung ventilation test, the air resistance member is driven to be removed from the second port of the breathing passage.

[0015] In some possible implementations, the airway component may include a steering valve, the steering valve may include a valve core and a valve sleeve, the valve core has a first channel and a second channel, the air resistance member is fixed on the second channel, the driving mechanism is in driving connection with the valve core, and the second port of the breathing channel is arranged on the valve sleeve;

[0016] When performing a lung ventilation test, the valve core is driven to move to a position where the first channel is connected to the second port of the breathing channel;

[0017] When performing a pulse oscillation test, the valve core is driven to move to a position where the second channel is connected to the second port of the breathing channel.

[0018] In some possible implementations, the driving mechanism may include a coupling and a motor, the end surface of the valve core facing the coupling having a radially extending ridge, the end surface of the coupling facing the valve core having a groove that cooperates with the ridge, and the coupling transmits the power of the motor through the cooperation between the groove and the ridge.

[0019] In some possible implementations, the breathing channel has a fixed section channel and an adjustable section channel, the second port of the breathing channel may include a ventilation port and an impedance port, the air resistance member is arranged on the impedance port, one end of the adjustable section channel is connected to the fixed section channel, and the driving mechanism is used to drive the change of the connection state of the adjustable section channel so that the other end of the adjustable section channel is selectively connected to the ventilation port or the impedance port.

[0020] In some possible implementations, the airway component may include a steering valve, which may include a valve core and a valve sleeve. The adjustable section channel is formed inside the valve core, and the ventilation port and the impedance port are both arranged on the valve sleeve.

[0021] In some possible implementations, the airway assembly may include an outer tube body and an inner tube body, wherein the inner tube body forms the breathing passage, and the inner tube body is detachably and rotationally prevented from being sleeved inside the outer tube body.

[0022] In some possible implementations, the airway component may include a first locking sleeve, which is detachably mounted on the outer tube body, the inner wall of the first locking sleeve has a first resisting portion, and the inner tube body has a first stop portion extending out of the outer tube body, the first resisting portion is used to abut against the first stop portion to prevent the inner tube body from falling out of the outer tube body.

[0023] In some possible implementations, the first locking sleeve is rotatably connected to the outer tube body, and when the first locking sleeve is rotated to a locking position, the first blocking portion abuts against the first stop portion to prevent the inner tube body from escaping from the outer tube body; when the first locking sleeve is rotated to an unlocking position, the first blocking portion is misaligned with the first stop portion to allow the inner tube body to escaping from the outer tube body.

[0024] In some possible implementations, the airway component may include a diverter valve that is detachably connected to the outer tube body.

[0025] In some possible implementations, the airway component may include a second locking sleeve, which is detachably mounted on the outer tube body, and the inner wall of the second locking sleeve has a second resisting portion. The steering valve is arranged inside the outer tube body and has a second stop portion extending outside the outer tube body. The second resisting portion is used to abut against the second stop portion to prevent the steering valve from falling out of the outer tube body.

[0026] In some possible implementations, the second locking sleeve is rotatably connected to the outer tube body, and when the second locking sleeve is rotated to a locking position, the second resisting portion abuts against the second stop portion to prevent the steering valve from escaping from the outer tube body; when the second locking sleeve is rotated to an unlocking position, the second resisting portion is misaligned with the second stop portion to allow the steering valve to escaping from the outer tube body.

[0027] In some possible implementations, the drive mechanism may further include a photoelectric switch, which is disposed on the outer tube body and is used to detect the disassembly or assembly status of the steering valve.

[0028] In some possible implementations, the pulse oscillation test device may further include a controller, which is configured to perform the following steps:

[0029] Determine the disassembly and assembly status of the steering valve;

[0030] When the steering valve is in the dismantled state, the control instruction to the steering valve is stopped.

[0031] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0032] In an embodiment of the present application, the pulse oscillation test device for integrated lung ventilation test has a respiratory parameter measurement component, an oscillation wave generator, an airway component, a driving mechanism and an air blocker. The driving mechanism can realize the conversion of the configuration state of the air blocker in the respiratory channel defined by the airway component. When performing a pulse oscillation test, the air blocker is automatically set to block the airflow of the respiratory channel; when performing a lung ventilation test, the air blocker is set to be located outside the respiratory channel and does not block the airflow of the second port. Therefore, compared with the existing pulse oscillation test system with lung ventilation function, the pulse oscillation test device for integrated lung ventilation test in the embodiment of the present application can realize automatic switching of the two functions, thereby improving practicality and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the scheme of the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 A schematic diagram of the gas circuit structure of the pulse oscillation test device of the present application integrated with the lung ventilation test is shown;

[0035] Figure 2 A schematic diagram of a specific embodiment of the air circuit structure of the pulse oscillation test device integrated with the lung ventilation test of the present application is shown;

[0036] Figure 3 Another specific embodiment schematic diagram of the air circuit structure of the pulse oscillation test device integrated with the lung ventilation test of the present application is shown;

[0037] Figure 4 Another specific embodiment schematic diagram of the air circuit structure of the pulse oscillation test device integrated with the lung ventilation test of the present application is shown;

[0038] Figure 5 A schematic structural diagram of a specific embodiment of a pulse oscillation test device for integrated lung ventilation test of the present application is shown;

[0039] Figure 6 A schematic structural cross-sectional diagram of a specific embodiment of a pulse oscillation test device for integrated lung ventilation test of the present application is shown;

[0040] Figure 7 A structural exploded view of a specific embodiment of a pulse oscillation test device integrated with a lung ventilation test of the present application is shown;

[0041] Figure 8 A schematic diagram showing the connection structure of an outer tube body and an inner tube body according to a specific embodiment is shown;

[0042] Fig. 9 A cross-sectional view showing a connection structure of an outer tube body and an inner tube body according to a specific embodiment;

[0043] Fig.10 A schematic structural diagram of a specific embodiment of a steering valve is shown;

[0044] Fig.11 A schematic diagram showing a specific embodiment of the connection structure between the steering valve and the outer tube body;

[0045] Fig.12 A schematic diagram of a specific embodiment of a valve core and coupling connection structure is shown. DETAILED DESCRIPTION

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0047] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0049] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0050] Specific reference Figure 1 , Figure 1 The schematic diagram of the gas circuit structure of the pulse oscillation test device for integrated lung ventilation test of the present application is shown. The pulse oscillation test device for integrated lung ventilation test includes:

[0051] Respiratory parameter measurement component 1, oscillatory wave generator 2, airway component 3, driving mechanism (not shown) and air resistance 4;

[0052] The airway component 3 defines a breathing channel 31, a first port of the breathing channel 31 is connected to the breathing parameter measurement component 1, and a second port of the breathing channel 31 is in communication with air;

[0053] The oscillation wave generator 2 is used to send oscillation waves to the respiratory channel 31;

[0054] The driving mechanism is used to drive and change the configuration state of the air resistance member 4 in the breathing channel 31;

[0055] When performing a pulse oscillation test, the air blocking member 4 is disposed in the breathing passage 31 to block the airflow from the second port in and out of the breathing passage 31 ; when performing a lung ventilation test, the air blocking member 4 is disposed outside the breathing passage 31 .

[0056] In this embodiment, the respiratory parameter measurement component 1 can mainly include a respiratory flow sensor and a pressure sensor. The respiratory flow sensor is used to detect the respiratory flow of the subject, and a screen-type differential pressure flow sensor or an ultrasonic flow sensor can be used. The pressure sensor is mainly used to detect the oral pressure of the subject, which can be a digital pressure sensor. One end of the respiratory flow sensor can be connected to a disposable mouthpiece, and the other end is sealed and connected to the respiratory channel 31. The data detected by the respiratory parameter measurement component 1 can be uploaded to a host computer for collection.

[0057] The airway component 3 is a tubular component, and the airway component 3 defines a breathing channel 31 inside the airway component 3. The breathing channel 31 specifically refers to a non-sensor sampling port and an inhalation port at the same time during a single inhalation or exhalation process. The first port of the breathing channel 31 is connected to the respiratory flow sensor, and the second port is connected to the air. When performing a pulmonary ventilation or pulse oscillation test, the subject's inhalation airflow enters from the second port, flows through the breathing channel 31, flows out from the first port, and enters the subject's oral cavity through the respiratory flow sensor; while the subject's expiratory airflow enters the first port of the breathing channel 31 from the disposable mouthpiece and the respiratory flow sensor, and flows out from the second port after flowing through the breathing channel 31, and passes through the opening of the steering valve and is exhaled into the air. Among them, when performing a pulmonary ventilation test, the breathing channel 31 needs to be free of air blockage, and when performing a pulse oscillation test, the breathing channel 31 needs to be added with a fixed air blockage device.

[0058] The oscillation wave generator 2 is controlled to generate an oscillation sound wave signal of a set frequency, and the oscillation wave generator 2 can be used as a speaker, a blower, and a linear oscillator. The drive signal of the oscillation wave generator 2 can be a periodic electrical signal such as a square wave, a sine wave, a triangle wave, a sawtooth wave, etc., and the frequency and amplitude of the drive signal can be adjusted as needed. The oscillation wave generator 2 can be arranged on the respiratory passage 31 and is in airtight communication with the respiratory passage 31.

[0059] Specifically, a notch may be provided on the side of the respiratory passage 31, and the notch faces the oscillation wave generator 2, so that the oscillation sound wave signal of the oscillation wave generator 2 can enter the respiratory passage 31 through the notch. When the subject performs the pulse oscillation test, the oscillation sound wave signal can enter the respiratory system of the subject along with the inhalation action of the subject.

[0060] The air block 4 is an air block structure, which can be a mesh in the form of woven nylon or stainless steel wire mesh, and is used as an attenuation element for the airflow in the breathing channel 31. It can provide a fixed air resistance value during the pulse oscillation test. The air block 4 has two configuration states in the exhalation channel, namely, it is in the channel at the second port of the breathing channel 31, at which time the airflow in and out of the second port flows through the air block 4, thereby blocking the airway flowing through the breathing channel 31, and it is outside the breathing channel 31 and cannot block the airflow.

[0061] The driving mechanism may be a DC motor, which is used to provide power and can drive the change in the direction of the breathing passage 31 or drive the change in the position of the air resistance member 4 on the device to achieve the change in the relative position of the air resistance member 4 relative to the breathing passage 31 .

[0062] like Figure 1In the gas path schematic diagram of state 1 and state 2 shown in the figure, when pulse oscillation is performed, the driving mechanism can automatically set the breathing gas path or the air resistance member 4 according to the control instructions issued, so that the air resistance member 4 is set in the breathing channel 31; and when the lung ventilation test is performed, the breathing gas path or the air resistance member 4 is automatically set according to the control instructions issued, and the air resistance member 4 in the breathing channel 31 is removed.

[0063] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0064] In the embodiment of the present application, the pulse oscillation test device for integrated lung ventilation test has a respiratory parameter measurement component 1, an oscillation wave generator 2, an airway component 3, a driving mechanism and an air block 4. The driving mechanism can realize the conversion of the configuration state of the air block 4 in the respiratory channel 31 defined by the airway component 3. When performing the pulse oscillation test, the air block 4 is automatically set to block the airflow of the respiratory channel 31; when performing the lung ventilation test, the air block 4 is set outside the respiratory channel 31 and does not block the airflow of the second port. Therefore, compared with the existing pulse oscillation test system with lung ventilation function, the pulse oscillation test device for integrated lung ventilation test in the embodiment of the present application can realize the automatic switching of the two functions, thereby improving practicality and convenience.

[0065] In some possible implementations, the driving mechanism is in transmission connection with the air resistance member 4;

[0066] When performing the pulse oscillation test, the air resistance member 4 is driven to move to the second port of the breathing channel 31;

[0067] When performing a lung ventilation test, the air resistance member 4 is driven to be removed from the second port of the breathing passage 31 .

[0068] In this embodiment, the air block 4 is directly or indirectly connected to the driving mechanism, so that the air block 4 can be driven to move by the driving mechanism. During the pulse oscillation test, the air block 4 is driven to move to the second port of the breathing channel 31 to block the breathing airflow, and during the lung ventilation test, it is moved away from the second port.

[0069] In some possible implementations, specific reference is made to Figure 2 , Figure 2 A schematic diagram of a specific embodiment of the air circuit structure of the pulse oscillation test device for integrated lung ventilation test of the present application is shown.

[0070] Among them, in this specific embodiment, refer to Figure 2As shown, the airway component 3 includes a steering valve 32, the steering valve 32 includes a valve core 321 and a valve sleeve 322, the valve core 321 has a first channel 3211 and a second channel 3212, the air resistance member 4 is fixed on the second channel 3212, the driving mechanism is in transmission connection with the valve core 321, and the second port of the breathing channel 31 is arranged on the valve sleeve 322;

[0071] When performing a lung ventilation test, the valve core 321 is driven to move to a position where the first channel 3211 is connected to the second port of the breathing channel 31;

[0072] When performing a pulse oscillation test, the valve core 321 is driven to move to a position where the second channel 3212 is connected to the second port of the breathing channel 31 .

[0073] In this embodiment, the valve core 321 is in driving connection with the driving mechanism, the first channel 3211 and the second channel 3212 are two independent air passages defined inside the valve core 321, the two passages have the same length, and the air resistance member 4 is fixed on the second channel 3212. The first channel 3211 and the second channel 3212 can both be used as a part of the breathing channel 31, so as to connect the other part of the breathing channel 31 with the second port of the breathing channel 31 provided on the valve sleeve 322.

[0074] The valve sleeve 322 has a cavity inside, and the valve core 321 is contained in the cavity and can be driven to move in the cavity. Specifically, the movement can be a rotational movement or a linear movement. In addition, the movement can have two positions. At the first position, the first channel 3211 of the valve core 321 is connected to the second port of the breathing channel 31 on the valve sleeve 322 as a part of the breathing channel 31. At this time, there is no gas blocking device in the breathing channel 31, which is used for lung ventilation testing; at the second position, the second channel 3212 of the valve core 321 is switched as a part of the breathing channel 31, and is connected to the second port of the breathing channel 31 on the valve sleeve 322. At this time, there is a gas blocking component 4 in the breathing channel 31, which is used for pulse oscillation testing.

[0075] In some possible implementations, specific reference is made to Figure 3 , Figure 3 Another specific embodiment schematic diagram of the air circuit structure of the pulse oscillation test device for integrated lung ventilation test of the present application is shown.

[0076] In this specific embodiment, refer to Figure 3As shown, the breathing channel 31 has a fixed section channel and an adjustable section channel, the second port of the breathing channel 31 includes a ventilation port and an impedance port, the air resistance member 4 is arranged on the impedance port, one end of the adjustable section channel is connected to the fixed section channel, and the driving mechanism is used to drive the change of the connection state of the adjustable section channel so that the other end of the adjustable section channel is selectively connected to the ventilation port or the impedance port.

[0077] In this embodiment, the ventilation port and the impedance port are both connected to the air, and an impedance member is provided at the impedance port. The fixed section channel is used to indicate that the structure of the channel, such as the length and airflow direction, does not change during the switching process between the two functional tests of the section channel, while the adjustable section channel can change the length or airflow direction during the switching process.

[0078] In this specific embodiment, Figure 3 As shown, the adjustable section channel can also be provided with two channel branches, and the two channel branches are respectively connected to the impedance port and the ventilation port. The driving mechanism can be specifically connected to the blocking structure provided in the two channel branches, so as to control the on-off state of the two channel branches through the blocking structure to adjust the airflow direction of the adjustable section channel.

[0079] In some possible implementations, specific reference is made to Figure 4 , Figure 4 Another specific embodiment schematic diagram of the air circuit structure of the pulse oscillation test device for integrated lung ventilation test of the present application is shown.

[0080] Among them, in this specific embodiment, refer to Figure 4 As shown, the airway component 3 includes a steering valve 33 , and the steering valve 33 includes a valve core 331 and a valve sleeve 332 . The adjustable section channel is formed inside the valve core 331 , and the ventilation port and the impedance port are both arranged on the valve sleeve 332 .

[0081] In this embodiment, the valve core 331 is a rotatable structure, and the ventilation port and the impedance port are respectively arranged at different circumferential positions on the valve sleeve 332. The valve core 331 is in transmission connection with the driving mechanism, so that the driving mechanism can realize selective communication with the impedance port and the ventilation port by driving the valve core 331 to rotate at different angles.

[0082] exist Figure 2 Based on the air path structure shown and related descriptions, other structures of the pulse oscillation test device for integrated pulmonary ventilation test are further described below in conjunction with another specific embodiment.

[0083] Specific reference Figure 5-Figure 12 , showing a structural schematic diagram of another specific embodiment of a pulse oscillation test device with integrated pulmonary ventilation test.

[0084] In this specific embodiment, the pulse oscillation test device for integrated lung ventilation test may specifically include a respiratory parameter measurement component 1 , an oscillation wave generator 2 , an airway component 3 , a driving mechanism 5 and an air resistance component 4 .

[0085] The airway assembly 3 includes an outer tube body 34 , an inner tube body 35 , a first locking sleeve 36 , a second locking sleeve 37 and a steering valve 32 .

[0086] The inside of the airway component 3 is defined to form a breathing channel 31 extending between a first port and a second port, wherein the first port is connected to the breathing parameter measurement component 1, and the second port is connected to the air. The breathing channel 31 specifically includes two parts, one part of which is defined by the inner wall of the inner tube body 35, and the other part is defined by the first channel 3211 or the second channel 3212 of the valve core 321 of the steering valve 32.

[0087] The oscillation wave generator 2 and the driving mechanism 5 are both arranged on the airway component 3 and are both located at the side of the breathing passage 31. The oscillation wave generator 2 can be a speaker and is provided with a notch 352 facing the side wall of the breathing passage 31.

[0088] The steering valve 32 has a valve core 321 and a valve sleeve 322. The valve sleeve 322 has an accommodating cavity 3221 for accommodating the valve core 321 and a connecting port 3222 communicating with the accommodating cavity 3221. The connecting port 3222 is used to communicate with the breathing channel 31 defined by the inner tube body 35. The second port of the breathing channel 31 is arranged on the valve sleeve 322 and communicates with the accommodating cavity 3221. The valve core 321 has a first channel 3211 and a second channel 3212 radially penetrating the side wall. The valve core 321 can rotate in the valve sleeve 322, so that the first channel 3211 or the second channel 3212 can be selectively used to conduct the breathing channel 31 formed by the inner tube body 35 and the second port on the valve sleeve 322.

[0089] like Fig.10 As shown, the air resistance member 4 includes an impedance network 41 and a fixing plate 42, and the impedance network 41 is fixed to the second channel 3212 of the valve core 321 through the fixing plate 42. The driving mechanism 5 includes a motor 51 and a coupling 52, and the electrode drives the valve core 321 to rotate through the coupling 52.

[0090] Further references Figure 6 , Figure 8 and Fig. 9, a schematic diagram showing the matching structure of the outer tube body 34 and the inner tube body 35 is shown. The airway assembly 3 may include an outer tube body 34 and an inner tube body 35, the main bodies of the outer tube body 34 and the inner tube body 35 are both cylindrical structures, the inner tube body 35 is sleeved in the outer tube body 34, and the inner wall of the inner tube body 35 defines a part of the breathing passage 31. Among them, a positioning groove 341 may be formed at the top of the inner wall of the outer tube body 34, and one or more positioning lugs or boss structures 351 protrude from the outer wall of the inner tube body 35. When the inner tube body 35 is installed in the outer tube body 34, the positioning lug 351 cooperates with the positioning groove 341 to prevent relative rotation between the inner tube body 35 and the outer tube body 34. Therefore, when it is necessary to clean and disinfect the breathing passage 31, the inner tube body 35 can be removed separately for disinfection.

[0091] In addition, the inner tube 35 has a notch 352, and the outer tube 34 has a side channel 344 at the same position on the side, and the notch 352 and the side channel 344 are opposite to each other, forming a trumpet opening. The oscillation wave generator 2 can send oscillating air waves to the breathing channel 31 through the trumpet opening.

[0092] In order to facilitate the disassembly and assembly of the outer tube body 34 and the inner tube body 35, a first locking sleeve 36 is further provided on the outside of the outer tube body 34, and the first locking sleeve 36 is detachably mounted on the outer tube body 34. The inner wall of the first locking sleeve 36 has a first abutment portion, which is an annular convex ridge 361 extending circumferentially from the inner wall of the first locking sleeve 36. The inner tube body 35 has a first stop portion extending out of the outer tube body 34, and the first stop portion can specifically be a positioning lug or boss structure 351 protruding from the outer wall of the inner tube body 35. After the inner tube body 35 is placed in the outer tube body 34 and the first locking sleeve 36 is mounted on the outer tube body 34, the annular convex ridge 361 and the positioning lug 351 abut against each other, so that the positioning lug 351 is pressed into the positioning groove 341 of the outer tube body 34, thereby preventing the inner tube body 35 from falling out of the outer tube body 34. When the inner tube body 35 needs to be removed for disinfection, the first locking sleeve 36 can be removed from the outer tube body 34 to remove the inner tube body 35 .

[0093] Further, see Figure 8The annular ridges 361 extending circumferentially on the inner wall of the first locking sleeve 36 are divided into multiple sections, and unlocking grooves 362 are formed between two adjacent annular ridges 361. The dimensions of the unlocking grooves 362, i.e., the depth and width and the angular arrangement of the unlocking grooves 362 can be consistent with the positioning grooves 341 on the inner wall of the outer tube body 34. In addition, the first locking sleeve 36 and the outer tube body 34 are rotatably connected. When the first locking sleeve 36 is rotated to the locking position, the unlocking grooves 362 of the first locking sleeve 36 are misaligned with the positioning grooves 341 on the inner wall of the outer tube body 34. At this time, the annular ridges 361 of the first locking sleeve 36 abut against the positioning lugs 351 protruding from the outer wall of the inner tube body 35, thereby fixing the positioning lugs 351 in the positioning grooves 341 to prevent the inner tube body 35 from falling out of the outer tube body 34. When the first locking sleeve 36 is rotated to the unlocking position, the unlocking groove 362 of the first locking sleeve 36 and the positioning groove 341 on the inner wall of the outer tube 34 are on the same axis, and the annular ridge 361 of the first locking sleeve 36 is misaligned with the positioning lug 351 protruding from the outer wall of the inner tube 35, allowing the inner tube 35 to escape from the outer tube 34. When escaping, the positioning lug 351 moves axially along the unlocking groove 362. In this way, the inner tube 35 and the outer tube 34 can be disassembled without removing the first locking sleeve 36.

[0094] Furthermore, a circumferentially extending positioning groove 363 is provided on the side wall of the first locking sleeve 36, and a threaded hole 342 is provided on the outer wall of the outer tube body 34. A step screw 343 can be installed on the threaded hole 342, and a portion of the screw can be protruded when installed to the threaded hole 342, and the protruding portion is located in the positioning groove 363, so that the first locking sleeve 36 and the outer tube body 34 can be rotatably connected in the range between the two end surfaces of the circumferential direction of the positioning groove 363, so that the first locking sleeve 36 can be switched between the locking position and the unlocking position, and the first locking sleeve 36 can be circumferentially fixed on the outer tube body 34.

[0095] The actual disassembly and assembly process of the outer tube body 34 and the inner tube body 35 of this specific embodiment is as follows: when installing, firstly, the first locking sleeve 36 is sleeved on the outer tube body 34, and the step screw 343 is fixed in the threaded hole 342 of the outer tube body 34 through the unlocking groove 362, and then the first locking sleeve 36 is rotated to the unlocking position, at this time, the inner tube body 35 is aligned with the unlocking groove 362 and inserted into the outer tube body 34. After that, the first locking sleeve 36 is rotated to the locking position, thereby completing the assembly of the inner tube body 35 and the outer tube body 34. Among them, the end face of the inner tube body 35 extends out from the end face of the first locking sleeve 36. When it needs to be disassembled and cleaned, the first locking sleeve 36 is first rotated to the unlocking position, and then the inner tube body 35 can be taken out of the outer tube body 34 from the end face of the head end of the first locking sleeve 36.

[0096] Furthermore, the steering valve 32 is detachably connected to the outer tube 34 in a rotation-resistant manner. To facilitate the detachable connection between the steering valve 32 and the outer tube 34, the airway assembly 3 further includes a second locking sleeve 37, which is detachably sleeved on the outer tube 34, and the inner wall of the second locking sleeve 37 has a second abutment portion. The steering valve 32 is disposed in the outer tube 34 and has a second stop portion extending out of the outer tube 34. The second stop portion is used to abut against the second stop portion to prevent the steering valve 32 from coming out of the outer tube 34.

[0097] The inner wall of the outer tube body 34 near the second port of the breathing passage 31 may be formed with a receiving cavity 345 having the same shape as the outer shell of the valve core 321 of the steering valve 32, for receiving the steering valve 32, and after receiving the steering valve 32, a portion of the valve sleeve 322 shell of the steering valve 32 near the second port may extend from the receiving cavity 345 to form a second stop portion. The outer portion of the outer tube body 34 near the second port of the breathing passage 31 is detachably fixed with a second locking sleeve 37, and the inner wall of the second locking sleeve 37 is formed with a protruding portion 371 protruding inwardly to form a second stop portion. After the steering valve 32 is placed in the outer tube body 34 and the second locking sleeve 37 is installed on the outer tube body 34, the protrusion 371 of the second locking sleeve 37 can press and block the portion of the outer shell of the valve sleeve 322 of the steering valve 32 extending from the accommodating chamber 345, so that the steering valve 32 is fixed in the accommodating chamber 345 of the outer tube body 34 to prevent it from coming out of the outer tube body 34. When the steering valve 32 needs to be removed for disinfection, the second locking sleeve 37 can be removed from the outer tube body 34 to remove the steering valve 32.

[0098] Furthermore, to facilitate the removal of the steering valve 32, a valve cover 3223 may be detachably mounted on the second port of the valve sleeve 322. The valve cover 3223 may have a central through hole connected to the second port. When the steering valve 32 is mounted in the outer tube 34, the valve cover 3223 may extend from the second locking sleeve 37, so that the user may remove the steering valve 32 from the outer tube 34 through the valve cover 3223.

[0099] Further, the second locking sleeve 37 is rotatably connected to the outer tube body 34, and the housing cavity 345 formed by the outer tube body 34 and the outer shell of the valve sleeve 322 are both in a square shape. When the steering valve 32 is installed in the housing cavity 345 of the outer tube body 34 and the second locking sleeve 37 is rotated to the locking position, the protrusion 371 formed on the inner wall of the second locking sleeve 37 protrudes from the inner wall of the housing cavity 345 of the steering valve 32 and presses the protruding outer shell of the valve sleeve 322, thereby blocking the steering valve 32 from coming out of the outer tube body 34; and when the second locking sleeve 37 is rotated to the unlocking position, the protrusion 371 formed on the inner wall of the second locking sleeve 37 does not protrude from the inner wall surface of the housing cavity 345 of the steering valve 32, and the second blocking portion is misaligned with the second stop portion to allow the steering valve 32 to come out of the outer tube body 34.

[0100] It should be noted that the fixing method of the second locking sleeve 37 and the outer tube body 34 is consistent with the fixing method and the fixing structure adopted by the first locking sleeve 36 and the outer tube body 34, so no further elaboration is made here.

[0101] Furthermore, the driving mechanism 5 includes a coupling 52 and a motor 51. The end surface of the valve core 321 facing the coupling 52 has a radially extending ridge 3213, and the end surface of the coupling 52 facing the valve core 321 has a groove 521 that cooperates with the ridge 3213. The coupling 52 transmits the power of the motor 51 through the cooperation between the groove 521 and the ridge 3213.

[0102] In this specific embodiment, the driving mechanism 5 further includes a photoelectric switch 54 . The photoelectric switch 54 is disposed on the outer tube body 34 and is used to detect the disassembly or assembly status of the steering valve 32 .

[0103] Among them, the photoelectric switch 54 can be specifically installed on the outer tube body 34, and a detection hole 346 is opened on the outer tube body 34, and the detection hole 346 is opposite to the steering valve 32 accommodating cavity 345, so that the photoelectric switch 54 can detect the disassembly and assembly status of the steering valve 32 in the outer tube body 34 through the detection hole 346.

[0104] In some possible implementations, the pulse oscillation test device further includes a controller, which is configured to perform the following steps:

[0105] Determine the disassembly and assembly state of the steering valve 32;

[0106] When the steering valve 32 is in the dismantling state, the control command to the steering valve 32 is stopped. In this specific embodiment, after the photoelectric switch 54 detects the disassembly state of the steering valve 32, the state can be reported to the controller. If the steering valve 32 has been dismantled, the control command to the steering valve 32 is stopped. Based on the above description, since the coupling 52 transmits the power of the motor 51 through the cooperation of the groove 521 and the ridge 3213, due to the cooperation structure, the steering valve 32 can be taken out and installed from the outer tube 34 only when the direction of the groove 521 and the ridge 3213 is consistent with the disassembly direction of the steering valve 32. During the test, the coupling 52 and the valve core 321 can be controlled to rotate by the controller. In order to prevent the steering valve 32 from being unable to be reset and installed due to the rotation of the coupling 52 after the steering valve 32 is removed, the controller can stop the control command to the steering valve 32 after detecting that the steering valve 32 is removed, and keep the direction of the groove 521 of the coupling 52 consistent with the disassembly direction of the steering valve 32 to facilitate the reset and installation of the steering valve 32.

[0107] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. An impulse oscillation test device integrated with lung ventilation test, characterized in that: include: Respiratory parameter measurement components, oscillatory wave generators, airway components, drive mechanisms, and air resistance components; The airway component defines a breathing channel, a first port of the breathing channel is connected to the breathing parameter measurement component, and a second port of the breathing channel is in communication with air; The oscillation wave generator is used to send oscillation waves to the respiratory channel; The driving mechanism is used to drive and change the configuration state of the air resistance member in the breathing passage; Wherein, when performing the pulse oscillation test, the air blocking member is arranged in the breathing passage to block the airflow of the second port into and out of the breathing passage; When performing a lung ventilation test, the air blocking member is arranged to be located outside the breathing passage.

2. The pulse oscillation test equipment according to claim 1, characterized in that: The driving mechanism is in transmission connection with the gas resistance member; When performing a pulse oscillation test, the air resistance member is driven to move to the second port of the breathing channel; When performing a lung ventilation test, the air resistance member is driven to be removed from the second port of the breathing passage.

3. The pulse oscillation test equipment according to claim 2, characterized in that: The airway component comprises a steering valve, the steering valve comprises a valve core and a valve sleeve, the valve core has a first channel and a second channel, the air resistance member is fixed on the second channel, the driving mechanism is in driving connection with the valve core, and the second port of the breathing channel is arranged on the valve sleeve; When performing a lung ventilation test, the valve core is driven to move to a position where the first channel is connected to the second port of the breathing channel; When performing a pulse oscillation test, the valve core is driven to move to a position where the second channel is connected to the second port of the breathing channel.

4. The pulse oscillation test equipment according to claim 3, characterized in that: The driving mechanism includes a coupling and a motor. The end surface of the valve core facing the coupling has a radially extending ridge, and the end surface of the coupling facing the valve core has a groove that cooperates with the ridge. The coupling transmits the power of the motor through the cooperation between the groove and the ridge.

5. The pulse oscillation test equipment according to claim 1, characterized in that: The breathing channel has a fixed section channel and an adjustable section channel, the second port of the breathing channel includes a ventilation port and an impedance port, the air resistance member is arranged on the impedance port, one end of the adjustable section channel is connected to the fixed section channel, and the driving mechanism is used to drive the change of the connection state of the adjustable section channel so that the other end of the adjustable section channel is selectively connected to the ventilation port or the impedance port.

6. The pulse oscillation test equipment according to claim 5, characterized in that: The airway component comprises a steering valve, which comprises a valve core and a valve sleeve. The adjustable section channel is formed inside the valve core, and the ventilation port and the impedance port are both arranged on the valve sleeve.

7. The pulse oscillation test device according to any one of claims 2 to 6, characterized in that: The airway component comprises an outer tube body and an inner tube body, wherein the inner tube body forms the breathing passage, and the inner tube body is detachably and rotationally sleeved inside the outer tube body.

8. The pulse oscillation test equipment according to claim 7, characterized in that: The airway component includes a first locking sleeve, which is detachably mounted on the outer tube body. The inner wall of the first locking sleeve has a first resisting portion. The inner tube body has a first stop portion extending out of the outer tube body. The first resisting portion is used to abut against the first stop portion to prevent the inner tube body from falling out of the outer tube body.

9. The pulse oscillation test equipment according to claim 8, characterized in that: The first locking sleeve is rotatably connected to the outer tube body. When the first locking sleeve is rotated to a locking position, the first blocking portion abuts against the first stop portion to prevent the inner tube body from escaping from the outer tube body. When the first locking sleeve is rotated to an unlocking position, the first blocking portion is misaligned with the first stop portion to allow the inner tube body to escaping from the outer tube body.

10. The pulse oscillation test equipment according to claim 7, characterized in that: The airway component comprises a steering valve, which is detachably connected to the outer tube body.

11. The pulse oscillation test equipment according to claim 10, characterized in that: The airway component includes a second locking sleeve, which is detachably mounted on the outer tube body. The inner wall of the second locking sleeve has a second resisting portion. The steering valve is arranged in the outer tube body and has a second stop portion extending out of the outer tube body. The second resisting portion is used to abut against the second stop portion to prevent the steering valve from falling out of the outer tube body.

12. The pulse oscillation test equipment according to claim 11, characterized in that: The second locking sleeve is rotatably connected to the outer tube body. When the second locking sleeve is rotated to a locking position, the second resisting portion abuts against the second stop portion to prevent the steering valve from escaping from the outer tube body. When the second locking sleeve is rotated to an unlocking position, the second resisting portion is misaligned with the second stop portion to allow the steering valve to escaping from the outer tube body.

13. The pulse oscillation test equipment according to claim 10, characterized in that: The driving mechanism further comprises a photoelectric switch, which is arranged on the outer tube body and is used to detect the disassembly and assembly status of the steering valve.

14. The pulse oscillation test equipment according to claim 13, characterized in that: The pulse oscillation test device further includes a controller, which is used to perform the following steps: Determining the disassembly and assembly status of the steering valve; When the steering valve is in the dismantled state, the control instruction for the steering valve is stopped.

Images