CN117173977A - Active and passive integrated lung simulation device with continuously adjustable breathing parameters - Google Patents

Active and passive integrated lung simulation device with continuously adjustable breathing parameters Download PDF

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CN117173977A
CN117173977A CN202311099968.XA CN202311099968A CN117173977A CN 117173977 A CN117173977 A CN 117173977A CN 202311099968 A CN202311099968 A CN 202311099968A CN 117173977 A CN117173977 A CN 117173977A
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flow
sensor
base
air inlet
linear motor
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任帅
王涛
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Beijing Institute of Technology BIT
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Abstract

本发明公开了一种呼吸参数连续可调的主被动一体式模拟肺装置,包括:底座、两个流量传感器、两个流量比例阀、两个气囊、两个压力传感器、两个直线电机、两个位移传感器和控制器。通过两个直线电机分别带动两个气囊产生周期性伸缩运动,模拟人体左右肺的主、被动进气和排气功能。并且可通过调节直线电机的运动频率调节呼吸频率,直线电机配合压力传感器和位移传感器,可准确调节气囊内压力;流量比例阀配合流量传感器,可准确调节进出气囊的气流;而通过压力和流量的调节,可实现顺应性和气阻的连续调节,最终实现整个呼吸过程中的呼吸参数的连续可调。

The invention discloses an active and passive integrated lung simulation device with continuously adjustable breathing parameters, which includes: a base, two flow sensors, two flow proportional valves, two air bags, two pressure sensors, two linear motors, two displacement sensors and controllers. Two linear motors drive two airbags to produce periodic telescopic motion, simulating the active and passive air intake and exhaust functions of the left and right lungs of the human body. And the breathing frequency can be adjusted by adjusting the movement frequency of the linear motor. The linear motor cooperates with the pressure sensor and displacement sensor to accurately adjust the pressure in the air bag; the flow proportional valve cooperates with the flow sensor to accurately adjust the air flow in and out of the air bag; and through the pressure and flow Adjustment can achieve continuous adjustment of compliance and air resistance, and ultimately achieve continuous adjustment of breathing parameters during the entire breathing process.

Description

一种呼吸参数连续可调的主被动一体式模拟肺装置An active and passive integrated lung simulation device with continuously adjustable breathing parameters

技术领域Technical field

本发明涉及医疗测试装置技术领域,更具体的说是涉及一种呼吸参数连续可调的主被动一体式模拟肺装置。The present invention relates to the technical field of medical testing devices, and more specifically to an active and passive integrated lung simulation device with continuously adjustable breathing parameters.

背景技术Background technique

呼吸机是治疗呼吸类疾病的重要设备,而呼吸机的开发和测试离不开一项关键仪器设备——模拟肺。此外,模拟肺还广泛应用于肺功能设备测试、呼吸机通气效果评估以及临床医学的教学与科研。Ventilators are important equipment for the treatment of respiratory diseases, and the development and testing of ventilators are inseparable from a key instrument - simulated lungs. In addition, simulated lungs are also widely used in pulmonary function equipment testing, ventilator ventilation effect evaluation, and clinical medicine teaching and research.

目前,国内外的模拟肺采用的是被动方式,即仅能模拟人体无自主呼吸意识下的被动呼吸功能,但在医疗设备测试过程中,不仅要测试设备在人体无呼吸意识下的性能,更重要的是需要测试在人体存在一定的自主呼吸功能时医疗设备的配合情况。此外,在吸气和呼气过程中人体呼吸参数(如吸气压力、吸气体积、呼吸频率、顺应性、气阻)是经常变化的,当前被动式的模拟肺只具有固定的顺应性和气阻,无法实现在整个呼吸过程中呼吸参数的连续可调。因此,当前被动式、参数固定的模拟肺不能够准确的模拟人体的呼吸功能,对呼吸相关医疗设备的开发测试、效果评估和临床教学带来不利影响。At present, simulated lungs at home and abroad adopt a passive method, that is, they can only simulate the passive breathing function of the human body without the consciousness of spontaneous breathing. However, during the testing of medical equipment, it is not only necessary to test the performance of the equipment without the consciousness of breathing, but also test the performance of the equipment without the consciousness of breathing. It is important to test the cooperation of medical equipment when the human body has a certain degree of spontaneous breathing function. In addition, human breathing parameters (such as inspiratory pressure, inspiratory volume, respiratory frequency, compliance, air resistance) often change during inhalation and exhalation. The current passive simulated lung only has fixed compliance and air resistance. , it is impossible to achieve continuous adjustment of breathing parameters during the entire breathing process. Therefore, the current passive simulated lung with fixed parameters cannot accurately simulate the respiratory function of the human body, which has a negative impact on the development and testing, effect evaluation and clinical teaching of respiratory-related medical equipment.

因此,如何提供一种能够精确的模拟人体的呼吸功能,利于呼吸相关医疗设备的开发测试、效果评估和临床教学的呼吸参数连续可调的主被动一体式模拟肺装置是本领域技术人员亟需解决的问题。Therefore, how to provide an active and passive integrated lung simulation device with continuously adjustable respiratory parameters that can accurately simulate the respiratory function of the human body and facilitate the development and testing of respiratory-related medical equipment, effect evaluation and clinical teaching is an urgent need for those skilled in the art. solved problem.

发明内容Contents of the invention

有鉴于此,本发明提供了一种能够精确的模拟人体的呼吸功能,利于呼吸相关医疗设备的开发测试、效果评估和临床教学的呼吸参数连续可调的主被动一体式模拟肺装置。In view of this, the present invention provides an active and passive integrated lung simulation device with continuously adjustable respiratory parameters that can accurately simulate the respiratory function of the human body and facilitate the development, testing, effect evaluation and clinical teaching of respiratory-related medical equipment.

为了实现上述目的,本发明采用如下技术方案:In order to achieve the above objects, the present invention adopts the following technical solutions:

一种呼吸参数连续可调的主被动一体式模拟肺装置,包括:An active and passive integrated lung simulation device with continuously adjustable breathing parameters, including:

底座,所述底座内部分别设有第一进出气通道和第二进出气通道,所述第一进出气通道的一端连接有第一流量传感器,所述第二进出气通道的一端连接有第二流量传感器,所述第一流量传感器和所述第二流量传感器均连接有进出气管;The base has a first air inlet and outlet channel and a second air inlet and outlet channel inside the base. One end of the first air inlet and outlet channel is connected to a first flow sensor, and one end of the second air inlet and outlet channel is connected to a second air inlet and outlet channel. Flow sensor, the first flow sensor and the second flow sensor are both connected to air inlet and outlet pipes;

第一流量比例阀,所述第一流量比例阀设置在所述底座顶端,所述第一流量比例阀的阀口与所述第一进出气通道连通;A first flow proportional valve, the first flow proportional valve is arranged on the top of the base, and the valve port of the first flow proportional valve is connected to the first air inlet and outlet passage;

第二流量比例阀,所述第二流量比例阀设置在所述底座顶端,所述第二流量比例阀的阀口与所述第二进出气通道连通;a second flow proportional valve, the second flow proportional valve is arranged on the top of the base, and the valve port of the second flow proportional valve is connected with the second air inlet and outlet passage;

模拟左肺气囊,所述模拟左肺气囊的下囊口与所述第一进出气通道的另一端连通,所述模拟左肺气囊上连接有第一压力传感器;Simulating the left lung airbag, the lower bag opening of the simulated left lung airbag is connected to the other end of the first air inlet and outlet channel, and the first pressure sensor is connected to the simulated left lung airbag;

模拟右肺气囊,所述模拟右肺气囊的下囊口与所述第二进出气通道的另一端连通,所述模拟右肺气囊上连接有第二压力传感器;Simulating the right lung airbag, the lower bag opening of the simulated right lung airbag is connected with the other end of the second air inlet and outlet channel, and the simulated right lung airbag is connected with a second pressure sensor;

第一直线电机,所述第一直线电机底部固定在所述底座顶端,且其上的第一滑块固定连接有第一支架,所述第一支架底端与所述模拟左肺气囊的顶端固定连接;A first linear motor, the bottom of the first linear motor is fixed on the top of the base, and the first slider on it is fixedly connected to a first bracket, the bottom of the first bracket is connected to the simulated left lung airbag Fixed connection at the top;

第二直线电机,所述第二直线电机底部固定在所述底座顶端,且其上的第二滑块固定连接有第二支架,所述第二支架底端与所述模拟右肺气囊的顶端固定连接;A second linear motor, the bottom of the second linear motor is fixed on the top of the base, and the second slider on it is fixedly connected to a second bracket, the bottom of the second bracket is connected to the top of the simulated right lung airbag Fixed connection;

第一位移传感器,所述第一位移传感器底端固定在所述底座顶端,所述第一位移传感器的感应杆端与所述第一支架底端固定;A first displacement sensor, the bottom end of the first displacement sensor is fixed on the top of the base, and the sensing rod end of the first displacement sensor is fixed on the bottom end of the first bracket;

第二位移传感器,所述第二位移传感器底端固定在所述底座顶端,所述第二位移传感器的感应杆端与所述第二支架底端固定;a second displacement sensor, the bottom end of the second displacement sensor is fixed on the top of the base, and the sensing rod end of the second displacement sensor is fixed on the bottom end of the second bracket;

控制器,所述控制器安装在所述底座上,且均与所述第一流量传感器、所述第二流量传感器、所述第一流量比例阀、所述第二流量比例阀、所述第一压力传感器、所述第二压力传感器、所述第一直线电机、所述第二直线电机、所述第一位移传感器、所述第二位移传感器电连接。A controller, which is installed on the base and is connected to the first flow sensor, the second flow sensor, the first flow proportional valve, the second flow proportional valve, and the third flow proportional valve. A pressure sensor, the second pressure sensor, the first linear motor, the second linear motor, the first displacement sensor, and the second displacement sensor are electrically connected.

经由上述的技术方案可知,与现有技术相比,本发明公开提供了一种呼吸参数连续可调的主被动一体式模拟肺装置,通过两个直线电机分别带动两个气囊产生周期性伸缩运动,模拟人体左右肺的主、被动进气和排气功能。并且可通过调节直线电机的运动频率调节呼吸频率,直线电机配合压力传感器和位移传感器,可准确调节气囊内压力;流量比例阀配合流量传感器,可准确调节进出气囊的气流;而通过压力和流量的调节,可实现顺应性和气阻的连续调节,最终实现整个呼吸过程中的呼吸参数的连续可调。因此,该装置能够精确的模拟人体的呼吸功能,利于呼吸相关医疗设备的开发测试、效果评估和临床教学。It can be seen from the above technical solution that compared with the prior art, the present invention provides an active and passive integrated simulated lung device with continuously adjustable breathing parameters. Two linear motors drive two air bags to produce periodic telescopic motion. , simulates the active and passive air intake and exhaust functions of the left and right lungs of the human body. And the breathing frequency can be adjusted by adjusting the movement frequency of the linear motor. The linear motor cooperates with the pressure sensor and displacement sensor to accurately adjust the pressure in the air bag; the flow proportional valve cooperates with the flow sensor to accurately adjust the air flow in and out of the air bag; and through the pressure and flow Adjustment can achieve continuous adjustment of compliance and air resistance, and ultimately achieve continuous adjustment of breathing parameters during the entire breathing process. Therefore, the device can accurately simulate the respiratory function of the human body, which is beneficial to the development, testing, effect evaluation and clinical teaching of respiratory-related medical equipment.

进一步的,所述模拟左肺气囊和所述模拟右肺气囊均为气囊。Further, the simulated left lung airbag and the simulated right lung airbag are both airbags.

采用上述技术方案产生的有益效果是:伸展性好,可实现顺畅的伸缩。The beneficial effects produced by adopting the above technical solution are: good stretchability and smooth expansion and contraction.

附图说明Description of drawings

为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据提供的附图获得其他的附图。In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without exerting creative efforts.

图1附图为本发明提供的一种呼吸参数连续可调的主被动一体式模拟肺装置的结构示意图。Figure 1 is a schematic structural diagram of an active and passive integrated lung simulation device with continuously adjustable breathing parameters provided by the present invention.

具体实施方式Detailed ways

下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

如图1所示,本发明实施例公开了一种呼吸参数连续可调的主被动一体式模拟肺装置,包括:As shown in Figure 1, an embodiment of the present invention discloses an active and passive integrated lung simulation device with continuously adjustable breathing parameters, including:

底座1,底座1内部分别设有第一进出气通道和第二进出气通道,第一进出气通道的一端连接有第一流量传感器2,第二进出气通道的一端连接有第二流量传感器3,第一流量传感器2和第二流量传感器3均连接有进出气管4,进出气管4可与外部测试呼吸设备的管路连接;The base 1 is provided with a first air inlet channel and a second air inlet channel respectively. One end of the first air inlet channel is connected to a first flow sensor 2, and one end of the second air inlet channel is connected to a second flow sensor 3. , the first flow sensor 2 and the second flow sensor 3 are both connected to the inlet and outlet trachea 4, and the inlet and outlet trachea 4 can be connected to the pipeline of the external test breathing equipment;

第一流量比例阀5,第一流量比例阀5设置在底座1顶端,第一流量比例阀5的阀口与第一进出气通道连通;The first flow proportional valve 5 is arranged on the top of the base 1, and the valve port of the first flow proportional valve 5 is connected with the first air inlet and outlet passage;

第二流量比例阀6,第二流量比例阀6设置在底座1顶端,第二流量比例阀6的阀口与第二进出气通道连通;a second flow proportional valve 6. The second flow proportional valve 6 is arranged on the top of the base 1, and the valve port of the second flow proportional valve 6 is connected to the second air inlet and outlet channel;

模拟左肺气囊7,模拟左肺气囊7的下囊口与第一进出气通道的另一端连通,模拟左肺气囊7上连接有第一压力传感器8,进而可实时测量模拟左肺气囊7内部气体压力;The simulated left lung air sac 7 has a lower opening connected to the other end of the first air inlet and outlet channel. The simulated left lung air sac 7 is connected to a first pressure sensor 8 so that the inside of the simulated left lung air sac 7 can be measured in real time. gas pressure;

模拟右肺气囊9,模拟右肺气囊9的下囊口与第二进出气通道的另一端连通,模拟右肺气囊9上连接有第二压力传感器10,进而可实时测量模拟右肺气囊9内部气体压力;The simulated right lung air sac 9 has a lower opening connected to the other end of the second air inlet and outlet channel. The simulated right lung air sac 9 is connected to a second pressure sensor 10 so that the inside of the simulated right lung air sac 9 can be measured in real time. gas pressure;

第一直线电机11,第一直线电机11底部固定在底座1顶端,且其上的第一滑块111固定连接有第一支架12,第一支架12底端与模拟左肺气囊7的顶端固定连接,进而第一滑块111上下移动过程中可带动第一支架12和模拟左肺气囊7一起运动,实现模拟左肺气囊7的伸缩;The bottom of the first linear motor 11 is fixed on the top of the base 1 , and the first slider 111 on it is fixedly connected to the first bracket 12 , and the bottom of the first bracket 12 is connected to the simulated left lung airbag 7 The top end is fixedly connected, and then when the first slider 111 moves up and down, it can drive the first bracket 12 and the simulated left lung airbag 7 to move together to realize the expansion and contraction of the simulated left lung airbag 7;

第二直线电机13,第二直线电机13底部固定在底座1顶端,且其上的第二滑块131固定连接有第二支架14,第二支架14底端与模拟右肺气囊9的顶端固定连接,进而第二滑块131上下移动过程中可带动第二支架14和模拟右肺气囊9一起运动,实现模拟右肺气囊9的伸缩;The second linear motor 13 has its bottom fixed on the top of the base 1, and the second slider 131 on it is fixedly connected to the second bracket 14. The bottom of the second bracket 14 is fixed to the top of the simulated right lung airbag 9 connection, and then the second slider 131 can drive the second bracket 14 and the simulated right lung airbag 9 to move together when the second slider 131 moves up and down, thereby realizing the expansion and contraction of the simulated right lung airbag 9;

第一位移传感器15,第一位移传感器15底端固定在底座1顶端,第一位移传感器15的感应杆端与第一支架12底端固定,进而随着第一支架12的上下移动可测量模拟左肺气囊7的移动位移;The first displacement sensor 15, the bottom end of the first displacement sensor 15 is fixed on the top of the base 1, the sensing rod end of the first displacement sensor 15 is fixed on the bottom end of the first bracket 12, and the simulation can be measured as the first bracket 12 moves up and down. Movement and displacement of the left lung air sac 7;

第二位移传感器16,第二位移传感器16底端固定在底座1顶端,第二位移传感器16的感应杆端与第二支架14底端固定,进而随着第二支架14的上下移动可测量模拟右肺气囊9的移动位移;The second displacement sensor 16 has a bottom end fixed on the top of the base 1. The sensing rod end of the second displacement sensor 16 is fixed on the bottom end of the second bracket 14. As the second bracket 14 moves up and down, the simulation can be measured. Movement and displacement of the right lung air sac 9;

控制器17,控制器17安装在底座1上,且均与第一流量传感器2、第二流量传感器3、第一流量比例阀5、第二流量比例阀6、第一压力传感器8、第二压力传感器10、第一直线电机11、第二直线电机13、第一位移传感器15、第二位移传感器16电连接。The controller 17 is installed on the base 1 and is connected to the first flow sensor 2, the second flow sensor 3, the first flow proportional valve 5, the second flow proportional valve 6, the first pressure sensor 8, and the second flow proportional valve 6. The pressure sensor 10, the first linear motor 11, the second linear motor 13, the first displacement sensor 15, and the second displacement sensor 16 are electrically connected.

其中,模拟左肺气囊7和模拟右肺气囊9均为气囊。Among them, the simulated left lung airbag 7 and the simulated right lung airbag 9 are both airbags.

人体呼吸力学参数主要包括顺应性和气阻。顺应性的表征方式如下式所示:The mechanical parameters of human breathing mainly include compliance and air resistance. Compliance is characterized by the following formula:

C为呼吸系统顺应性,单位ml/cmH2O,V为进出人体的气体体积,单位ml,p为肺内压力,单位cmH2O。C is the respiratory system compliance in ml/cmH2O, V is the volume of gas entering and exiting the human body in ml, and p is the intrapulmonary pressure in cmH2O.

气阻的表征方式如下式所示:The characterization method of air resistance is as follows:

R为气阻,单位cmH2O/(L/s),q为气体流量,单位L/s,Δp为肺内外压差,单位cmH2O。R is the air resistance in cmH2O/(L/s), q is the gas flow in L/s, and Δp is the pressure difference between the inside and outside of the lungs in cmH2O.

体积V可通过对流量q的积分运算求得,如下式所示。The volume V can be obtained by integrating the flow rate q, as shown in the following formula.

V=∫dq (3)V=∫dq (3)

主动模式:Active mode:

在主动模式下,通过主动控制气囊的伸缩来模拟人体的主动呼吸功能。控制器向第一直线电机、第二直线电机发出控制指令,第一直线电机、第二直线电机分别带动第一滑块、第二滑块上下移动,第一滑块、第二滑块进一步带动第一支架、第二支架以及模拟左肺气囊、模拟右肺气囊伸缩;气囊的伸缩导致其内部产生交替的正、负压变化,从而在流量比例阀、流量传感器和进出气管部分产生交替的进、出气体,与呼吸机等设备产生交互,从而模拟人体的主动呼吸功能。In active mode, the active breathing function of the human body is simulated by actively controlling the expansion and contraction of the air bag. The controller sends control instructions to the first linear motor and the second linear motor. The first linear motor and the second linear motor drive the first slide block and the second slide block to move up and down respectively. The first slide block and the second slide block It further drives the expansion and contraction of the first stent, the second stent, the simulated left lung airbag, and the simulated right lung airbag; the expansion and contraction of the airbag causes alternating positive and negative pressure changes inside it, thus causing alternation in the flow proportional valve, flow sensor, and inlet and outlet trachea parts. The inlet and outlet of gas interact with equipment such as ventilators to simulate the active breathing function of the human body.

此外,在进、出气过程中,根据对呼吸参数设定的需要,控制器可调节直线电机的运动频率,进而调节呼吸频率;控制器可根据压力传感器和位移传感器的测量反馈值,实时调节滑块位置,进而调节气囊的体积,从而调节气囊内的气体压力;控制器可根据流量传感器的测量反馈值,实时调节流量比例阀的开度,进而调节气体流量的大小;根据式(1)、(2)、(3),通过对压力p和流量q的调节,进而实现C、R和V的调节。In addition, during the air inlet and outlet process, according to the needs of breathing parameter setting, the controller can adjust the movement frequency of the linear motor, and then adjust the breathing frequency; the controller can adjust the slide in real time based on the measured feedback values of the pressure sensor and displacement sensor. block position, thereby adjusting the volume of the air bag, thereby adjusting the gas pressure in the air bag; the controller can adjust the opening of the flow proportional valve in real time according to the measurement feedback value of the flow sensor, thereby adjusting the size of the gas flow; according to Equation (1), (2) and (3), by adjusting the pressure p and flow rate q, the adjustment of C, R and V is realized.

被动模式:Passive mode:

在被动模式下,呼吸机等设备通过进出气管向气囊供气,呼吸频率、吸气压力和吸气体积均由呼吸机设定,只有顺应性和气阻可调节。与主动模式相类似,控制器根据压力传感器和位移传感器的测量反馈值,实时调节滑块位置,进而调节气囊内的气体压力;控制器根据流量传感器的测量反馈值,实时调节流量比例阀的开度,进而调节气体流量的大小;最后根据式(1)和(2),通过对压力p和流量q的调节,进而实现C和R的调节。In passive mode, equipment such as a ventilator supplies air to the air bag through the inlet and outlet trachea. The respiratory frequency, inspiratory pressure and inspiratory volume are all set by the ventilator. Only compliance and air resistance can be adjusted. Similar to the active mode, the controller adjusts the slider position in real time based on the measured feedback values of the pressure sensor and displacement sensor, thereby adjusting the gas pressure in the airbag; the controller adjusts the opening of the flow proportional valve in real time based on the measured feedback values of the flow sensor. degree, and then adjust the gas flow rate; finally, according to equations (1) and (2), by adjusting the pressure p and flow rate q, the adjustment of C and R is realized.

因此,上述实施例中,直线电机、位移传感器和压力传感器三者配合工作,实现气囊内气体压力的准确调节。流量比例阀和流量传感器配合工作,实现进出气囊气体流量的准确调节。而通过压力和流量的调节,可实现顺应性和气阻的连续调节,最终实现整个呼吸过程中的呼吸参数的连续可调。Therefore, in the above embodiment, the linear motor, the displacement sensor and the pressure sensor work together to achieve accurate adjustment of the gas pressure in the airbag. The flow proportional valve and the flow sensor work together to achieve accurate adjustment of the gas flow in and out of the airbag. Through the adjustment of pressure and flow, the compliance and air resistance can be continuously adjusted, and ultimately the breathing parameters can be continuously adjusted throughout the breathing process.

因此,本发明所提出的主被动一体式模拟肺装置可实现主动呼吸和被动呼吸功能;并可实现呼吸参数的连续调节,并能够精确的模拟人体的呼吸功能,利于呼吸相关医疗设备的开发测试、效果评估和临床教学。Therefore, the active and passive integrated lung simulation device proposed by the present invention can realize active breathing and passive breathing functions; can realize continuous adjustment of breathing parameters, and can accurately simulate the breathing function of the human body, which is beneficial to the development and testing of respiratory-related medical equipment , effect evaluation and clinical teaching.

本说明书中各个实施例采用递进的方式描述,每个实施例重点说明的都是与其他实施例的不同之处,各个实施例之间相同相似部分互相参见即可。对于实施例公开的装置而言,由于其与实施例公开的方法相对应,所以描述的比较简单,相关之处参见方法部分说明即可。Each embodiment in this specification is described in a progressive manner. Each embodiment focuses on its differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other. As for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple. For relevant details, please refer to the description in the method section.

对所公开的实施例的上述说明,使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的,本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下,在其它实施例中实现。因此,本发明将不会被限制于本文所示的这些实施例,而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be practiced in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (2)

1. An active and passive integrated lung simulator with continuously adjustable respiratory parameters, comprising:
the device comprises a base (1), wherein a first air inlet and outlet channel and a second air inlet and outlet channel are respectively arranged in the base (1), one end of the first air inlet and outlet channel is connected with a first flow sensor (2), one end of the second air inlet and outlet channel is connected with a second flow sensor (3), and both the first flow sensor (2) and the second flow sensor (3) are connected with an air inlet and outlet pipe (4);
the first flow proportional valve (5) is arranged at the top end of the base (1), and a valve port of the first flow proportional valve (5) is communicated with the first air inlet and outlet channel;
the second flow proportional valve (6), the said second flow proportional valve (6) is set up in the top of the said base (1), the valve port of the said second flow proportional valve (6) communicates with said second air inlet and outlet channel;
the simulated left lung air bag (7), a lower bag opening of the simulated left lung air bag (7) is communicated with the other end of the first air inlet and outlet channel, and a first pressure sensor (8) is connected to the simulated left lung air bag (7);
the simulated right lung air bag (9), a lower bag opening of the simulated right lung air bag (9) is communicated with the other end of the second air inlet and outlet channel, and a second pressure sensor (10) is connected to the simulated right lung air bag (9);
the bottom of the first linear motor (11) is fixed at the top end of the base (1), a first sliding block (111) on the first linear motor is fixedly connected with a first bracket (12), and the bottom end of the first bracket (12) is fixedly connected with the top end of the simulated left lung air bag (7);
the bottom of the second linear motor (13) is fixed at the top end of the base (1), a second sliding block (131) on the second linear motor is fixedly connected with a second bracket (14), and the bottom end of the second bracket (14) is fixedly connected with the top end of the simulated right lung air bag (9);
the bottom end of the first displacement sensor (15) is fixed at the top end of the base (1), and the induction rod end of the first displacement sensor (15) is fixed with the bottom end of the first bracket (12);
the bottom end of the second displacement sensor (16) is fixed at the top end of the base (1), and the induction rod end of the second displacement sensor (16) is fixed with the bottom end of the second bracket (14);
the controller (17), the controller (17) is installed on base (1), and all with first flow sensor (2), second flow sensor (3), first flow proportional valve (5), second flow proportional valve (6) first pressure sensor (8), second pressure sensor (10), first linear motor (11), second linear motor (13), first displacement sensor (15), second displacement sensor (16) electricity is connected.
2. An active and passive integrated lung simulator with continuously adjustable breathing parameters according to claim 1, characterized in that the left and right lung simulative airbags (7, 9) are airbags.
CN202311099968.XA 2023-08-29 2023-08-29 Active and passive integrated lung simulation device with continuously adjustable breathing parameters Pending CN117173977A (en)

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