WO2020252748A1 - Ventilator intubation tube and using method - Google Patents

Ventilator intubation tube and using method Download PDF

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Publication number
WO2020252748A1
WO2020252748A1 PCT/CN2019/092115 CN2019092115W WO2020252748A1 WO 2020252748 A1 WO2020252748 A1 WO 2020252748A1 CN 2019092115 W CN2019092115 W CN 2019092115W WO 2020252748 A1 WO2020252748 A1 WO 2020252748A1
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WO
WIPO (PCT)
Prior art keywords
ventilator
pressure
pressure sensor
cannula
hose
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PCT/CN2019/092115
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French (fr)
Chinese (zh)
Inventor
李秋华
罗小锁
李增
彭强
Original Assignee
深圳市科曼医疗设备有限公司
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Application filed by 深圳市科曼医疗设备有限公司 filed Critical 深圳市科曼医疗设备有限公司
Priority to PCT/CN2019/092115 priority Critical patent/WO2020252748A1/en
Publication of WO2020252748A1 publication Critical patent/WO2020252748A1/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04Tracheal tubes

Definitions

  • the invention belongs to the technical field of ventilator matching equipment, and in particular relates to a ventilator intubation and a use method.
  • the ventilator As an effective means to artificially replace the autonomous ventilation function, has been commonly used in various reasons for respiratory failure, anesthesia breathing management during major operations, respiratory support treatment and emergency recovery.
  • the intubation used with the ventilator is used to insert into the patient’s trachea to assist the patient in breathing and to estimate the patient’s lung pressure.
  • the corresponding tracheal intubation is also an important rescue technique in emergency work, which has become cardiopulmonary resuscitation and accompanied by breathing.
  • An important measure in the rescue of patients with dysfunction in critically ill patients is one of the most widely used, quickest, and most effective means in respiratory management. It plays an important role in rescuing the lives of patients and reducing the mortality rate. The role of.
  • the prior art uses ordinary intubation with balloons to estimate the patient's flow, that is, by multiplying by the intubation coefficient. Calculate the pressure difference between the front end and the end of the cannula to estimate the pressure in the patient’s lungs.
  • the error of the estimation method itself causes the pressure estimation and control error in the ATC process to be uncontrollable, and the pressure value is not The precise question.
  • a respirator cannula includes a cannula main body that is used in conjunction with a ventilator, and is characterized in that the cannula main body includes an upper hose and a lower hose that are integrally connected, the top of the upper hose is connected with an air source connector, and the lower part is soft.
  • the outer wall below the tube is provided with an air bag that is sealed and connected with the lower hose.
  • the main body of the cannula is provided with a pressure pipe fixedly connected to the inner wall of the main body of the cannula. One end of the pressure pipe is located at the end of the lower hose, and the other One end extends to the outside of the upper hose and is provided with a pressure sensor connector, which is used to connect with the pressure sensor of the ventilator.
  • the intrapulmonary pressure control module controls the ventilator to perform intrapulmonary pressure control ventilation.
  • the present invention penetrates into the patient’s trachea through the intubation body composed of an upper hose and a lower hose, and fixes the intubation body by an airbag provided at the outer wall below the lower hose to prevent the patient’s trachea and the intubation body from being sealed
  • One end of the pressure tube is located at the end of the lower hose and is used to obtain the patient’s lung pressure data.
  • the other end of the tube extends to the outside of the upper hose and is provided with a pressure sensor connector, which is connected to the pressure sensor of the ventilator, so that the ventilator can control intrapulmonary pressure ventilation according to the acquired patient’s lung pressure data.
  • a pressure sensor connector which is connected to the pressure sensor of the ventilator, so that the ventilator can control intrapulmonary pressure ventilation according to the acquired patient’s lung pressure data.
  • Figure 1 is a schematic diagram of the overall structure of a ventilator cannula provided by this embodiment
  • FIG. 2 is a schematic diagram of the overall structure of a pressure catheter for a ventilator intubation provided by this embodiment
  • Figure 3 is a flow chart of a method for using a ventilator intubation provided by this embodiment
  • Fig. 4 is a frame diagram of a ventilator provided in this embodiment.
  • the cannula body is also provided with a balloon catheter fixedly connected to the inner wall of the other side of the cannula body, one end of the balloon catheter is hermetically connected with the balloon, and the other of the balloon catheter One end extends to the outside of the upper hose and is fixedly connected with an inflation interface for inflating the airbag.
  • the present invention is further configured as: a one-way inflation valve is provided in the inflation interface, and two ends of the one-way inflation valve are respectively connected with the balloon catheter and the inflation interface.
  • the present invention is further provided that: the outer tube wall of the lower hose is marked with a graduation line.
  • the present invention is further provided as follows: one end of the pressure conduit is provided with a plurality of anti-clogging pipes, the plurality of the anti-clogging pipes are fixedly connected with the pressure pipe, and a sampling through hole is opened at the end of the anti-clogging pipe away from the pressure pipe .
  • the present invention is further provided as follows: a one-way valve is arranged in the pressure sensor connector, and two ends of the one-way valve are respectively connected with the pressure pipe and the pressure sensor connector.
  • the present invention is further configured that: the pressure sensor, the comparator, and the intrapulmonary pressure control module are all arranged inside the ventilator and electrically connected to the ventilator.
  • the present invention is further configured as follows: the thickness of the lubricant coated on the surface of the lower hose is 0.1mm-1mm.
  • the pressure sensor is a differential pressure sensor.
  • an embodiment of the present invention provides a ventilator cannula, please refer to Figures 1 and 2.
  • Figure 1 is a schematic diagram of the overall structure of a ventilator cannula provided in this embodiment
  • Figure 2 is this embodiment
  • the example provides a schematic diagram of the overall structure of a pressure catheter of a ventilator cannula.
  • the ventilator cannula disclosed in the present invention includes a cannula main body 1 used in conjunction with the ventilator, and the cannula main body 1 includes an integrally connected upper hose 11 and the lower hose 12, wherein the top end of the upper hose 11 is connected with an air supply connector 2, and the outer wall below the lower hose 12 is provided with an air bag 3 that is sealed and connected with the lower hose 12, and the intubation body 1 is provided with One end of the pressure pipe 4 is fixedly connected to the inner wall of the cannula body 1 at the end of the lower hose 12, and the other end of the pressure pipe 4 extends to the outside of the upper hose 12 and is provided with a pressure sensor connector 41.
  • the air source connector 2 and the upper hose 11 can be connected by threaded or interference connection.
  • the purpose is to facilitate the replacement of the air source connector 2 to fit the ventilator and enhance the practicability of the ventilator intubation.
  • the pressure tube 4 provided in the main body 1 of the intubation tube facilitates the access of the intubation tube of the ventilator to prevent damage to the equipment.
  • the airbag 3 provided below the lower tube 12 is used to penetrate the lower tube 12 When the patient’s trachea is fixed, the lower tube 12 is sealed and connected to the lower tube 12 to prevent the patient’s gastric juice from infiltrating due to the lack of tightness of the ventilator intubation.
  • One end of the pressure tube 4 extends to the end of the lower tube 12 It is used to directly sample the pressure in the patient's lungs, and the pressure sensor connector 41 provided at the other end is convenient for connecting the pressure tube 4 with the pressure sensor of the ventilator, and is used to transmit the pressure in the patient's lungs and provide feedback parameters for the ventilator.
  • the upper hose 11 is flexible and can be extended to a certain length, so as to satisfy that the air source connector 2 connected to the top of the upper hose 11 can be connected to the ventilator under different usage environments.
  • the outer tube wall of the lower tube 12 is marked with a scale line 6, which clarifies the progress of the lower tube 12 into the patient’s trachea through the scale line 6, preventing accidental injury to the patient’s internal organs and improving the insertion of the ventilator. The safety of the tube.
  • the cannula body 1 is also provided with a balloon catheter 5 fixedly connected to the inner wall of the other side of the cannula body 1.
  • One end of the balloon catheter 5 is sealed to the balloon 3, and the other end of the balloon catheter 5 extends to the upper part.
  • the outside of the hose 11 is fixedly connected with an inflation port 51 for inflating the airbag 3, that is, after the lower hose 12 penetrates into the patient’s trachea, the ventilator is connected through the inflation port 51 and the ventilator enters the airbag 3 through the balloon catheter 5 The air is blown in to expand and inflate the airbag 3 into the patient's trachea, achieving the purpose of fixing the lower hose 12.
  • a one-way inflation valve 52 is provided in the inflation interface 51, and both ends of the one-way inflation valve 52 are respectively connected to the balloon catheter 5 and the inflation interface 51, that is, the air can only flow into the airbag 3 along the inflation interface 51 In this way, it is ensured that during the process of inflating the airbag 3 or when the airbag 3 is in an inflated state, the air will not flow backward from the airbag 3 to the ventilator, which improves the safety and practicability of the intubation of the ventilator.
  • a plurality of anti-clogging tubes 43 are provided at one end of the pressure conduit 4, and the plurality of anti-clogging tubes 43 are fixedly connected to the pressure conduit 4, and a sampling through hole 431 is opened at the end of the anti-clogging tube 43 away from the pressure conduit 4
  • the number of the anti-clogging tube 43 can be four, and the anti-clogging tube 43 is also fixedly connected to the inner wall of the lower hose 12 to improve the sampling accuracy of the pressure tube 4.
  • the pressure sensor connector 41 is provided with a one-way valve 42, and two ends of the one-way valve 42 are respectively connected to the pressure pipe 4 and the pressure sensor connector 41.
  • an embodiment of the present invention provides a method for using a ventilator intubation. Please refer to Figures 3 and 4, which includes the following steps:
  • Step S100 coating anesthetic and lubricant on the surface of the lower hose
  • Step S200 insert the lower hose into the patient's trachea
  • Step S300 inflate the airbag and make the airbag jam in the patient's trachea
  • Step S400 connecting the pressure sensor connector and the air source connector to the ventilator to perform intrapulmonary pressure ventilation control
  • step S500 the pressure in the lung of the patient is measured by the pressure sensor on the ventilator;
  • step S600 the pressure value obtained by the pressure sensor is transmitted to the ventilator and compared with the threshold set by the comparator in the ventilator;
  • Step S700 output the comparison result of the comparator to the lung pressure control module
  • step S800 the intrapulmonary pressure control module controls the ventilator to perform intrapulmonary pressure control ventilation.
  • the pressure sensor, the comparator, and the lung pressure control module are all arranged inside the ventilator and electrically connected to the ventilator.
  • the pressure sensor is a differential pressure sensor.
  • the purpose of the present invention is to directly detect the pressure in the patient's lungs for control during the pressure control ventilation automatic intubation resistance compensation (ATC) process of the ventilator, that is, the pressure sensor is also called the ATC pressure sensor.
  • ATC automatic intubation resistance compensation
  • the thickness of the lubricant coated on the surface of the lower hose is 0.1mm-1mm.
  • the present invention has the following beneficial effects: the present invention is fixedly connected to the inner wall of one side of the cannula main body 1 composed of the upper hose 11 and the lower hose 12 with a pressure tube 4, and one end of the pressure tube 4 is located in the lower part of the soft tube.
  • the end of the tube 12 is provided with a plurality of anti-clogging tubes 43, and a sampling through hole 431 is opened at the end of the anti-clogging tube 43 facing away from the pressure conduit 4.
  • This design can effectively avoid errors caused by the prior art intubation compensation algorithm, so that The pressure sensor of the ventilator can directly obtain the patient's lung pressure, and use the pressure data to control the lung pressure, replacing the automatic intubation resistance compensation method, which is different from the traditional estimation method, making the measurement data more accurate and obtaining better results. Good ventilator treatment effect.
  • This application has industrial applicability.

Abstract

A ventilator intubation tube and a using method. The ventilator intubation tube comprises an intubation tube body (1) used in conjunction with a ventilator; the intubation tube body (1) comprises an upper hose (11) and a lower hose (12) which are integrally connected, the top end of the upper hose (11) is connected to an air source connector (2), and an air bag (3) sealingly connected to the lower hose (12) is provided at the outer wall position below the lower hose (12); a pressure tube (4) fixedly connected to the inner wall of one side of the intubation tube body (1) is provided in the intubation tube body (1), one end of the pressure tube (4) is located at the tail end of the lower hose (12), the other end of the pressure tube (4) extends to the outer portion of the upper hose (11) and is provided with a pressure sensor connector (41), and the pressure sensor connector (41) is used for connecting a pressure sensor of the ventilator. The ventilator intubation tube is simple in design and reasonable in structure, and an automatic intubation resistance compensation mode is replaced; the pressure in the lung of a patient is more accurately and stably controlled so as to obtain a better treatment effect of the ventilator.

Description

一种呼吸机插管及使用方法Intubation of ventilator and method of use 技术领域Technical field
本发明属于呼吸机配套设备技术领域,尤其涉及一种呼吸机插管及使用方法。The invention belongs to the technical field of ventilator matching equipment, and in particular relates to a ventilator intubation and a use method.
背景技术Background technique
在现代临床医学中,呼吸机作为一项能人工替代自主通气功能的有效手段,已普遍用于各种原因所致的呼吸衰竭、大手术期间的麻醉呼吸管理、呼吸支持治疗和急救复苏中,与呼吸机配套使用的插管用于插入至患者气管中辅助患者呼吸并估算患者肺部压力,相应的气管插管术亦是急救工作中重要的抢救技术,其已成为心肺复苏及伴有呼吸功能障碍的急危重症患者抢救过程中的重要措施,是呼吸道管理中应用最广泛的,实施最快捷的,效果最有效的手段之一,其对抢救患者生命和降低病死率起到至关重要的作用。In modern clinical medicine, the ventilator, as an effective means to artificially replace the autonomous ventilation function, has been commonly used in various reasons for respiratory failure, anesthesia breathing management during major operations, respiratory support treatment and emergency recovery. The intubation used with the ventilator is used to insert into the patient’s trachea to assist the patient in breathing and to estimate the patient’s lung pressure. The corresponding tracheal intubation is also an important rescue technique in emergency work, which has become cardiopulmonary resuscitation and accompanied by breathing. An important measure in the rescue of patients with dysfunction in critically ill patients is one of the most widely used, quickest, and most effective means in respiratory management. It plays an important role in rescuing the lives of patients and reducing the mortality rate. The role of.
技术问题technical problem
在此前提下,在呼吸机的压力控制通气自动插管阻力补偿(ATC)过程中,现有技术均采用普通带气囊的插管对患者进行流量估算,即通过乘以插管系数的方法来计算插管的前端和末端的压力差,以此估算患者肺内的压力,存在估算误差较大的情况,而由于估算方法本身的误差导致ATC过程中压力估算和控制误差不可控,压力数值不精准的问题。Under this premise, in the automatic intubation resistance compensation (ATC) process of pressure-controlled ventilation of the ventilator, the prior art uses ordinary intubation with balloons to estimate the patient's flow, that is, by multiplying by the intubation coefficient. Calculate the pressure difference between the front end and the end of the cannula to estimate the pressure in the patient’s lungs. There is a large estimation error. The error of the estimation method itself causes the pressure estimation and control error in the ATC process to be uncontrollable, and the pressure value is not The precise question.
技术解决方案Technical solutions
一种呼吸机插管,包括与呼吸机配合使用的插管主体,其特征在于:插管主体包括一体连接的上部软管和下部软管,上部软管的顶端连接有气源接头,下部软管下方的外壁处设有与下部软管密封连接的气囊,插管主体内设有与插管主体一侧内壁固定连接的压力导管,压力导管的一端位于下部软管的末端,压力导管的另一端延展至上部软管外部并设有压力传感器接头,压力传感器接头用于与呼吸机的压力传感器连接。 A respirator cannula includes a cannula main body that is used in conjunction with a ventilator, and is characterized in that the cannula main body includes an upper hose and a lower hose that are integrally connected, the top of the upper hose is connected with an air source connector, and the lower part is soft. The outer wall below the tube is provided with an air bag that is sealed and connected with the lower hose. The main body of the cannula is provided with a pressure pipe fixedly connected to the inner wall of the main body of the cannula. One end of the pressure pipe is located at the end of the lower hose, and the other One end extends to the outside of the upper hose and is provided with a pressure sensor connector, which is used to connect with the pressure sensor of the ventilator.
一种呼吸机插管使用方法,其特征在于,包括:A method for using intubation of a ventilator is characterized in that it comprises:
在下部软管表面涂覆麻醉剂和润滑剂;Coat the surface of the lower hose with anesthetic and lubricant;
将下部软管插入患者的气管内;Insert the lower hose into the patient’s trachea;
向气囊内充气并使气囊卡于患者气管处;Inflate the airbag and make the airbag stuck in the patient's trachea;
将压力传感器接头和气源接头与呼吸机连接以进行肺内压力通气控制;Connect the pressure sensor connector and the air source connector to the ventilator to control intrapulmonary pressure ventilation;
通过呼吸机上的压力传感器测量获取患者肺内压力;Obtain the patient's lung pressure through the pressure sensor on the ventilator;
将压力传感器获取的压力值传输到呼吸机并与呼吸机内的比较器设定的阀值进行比较; Transmit the pressure value obtained by the pressure sensor to the ventilator and compare it with the threshold set by the comparator in the ventilator;
将比较器的比较结果输出到肺内压力控制模块; Output the comparison result of the comparator to the lung pressure control module;
肺内压力控制模块控制呼吸机进行肺内压力控制通气。The intrapulmonary pressure control module controls the ventilator to perform intrapulmonary pressure control ventilation.
有益效果Beneficial effect
本发明通过由上部软管和下部软管组成的插管主体探入进患者气管内,通过设于下部软管下方的外壁处的气囊固定插管主体,预防因患者气管与插管主体密封不严,而致使的胃液倒流进气管的事故,其中,在插管主体内部的一侧内壁处设有压力导管,压力导管的一端位于下部软管的末端并用于获取患者肺部压力数据,压力导管的另一端延展至上部软管外部并设有压力传感器接头,压力传感器接头与呼吸机的压力传感器连接,便于呼吸机根据获取的患者肺部压力数据进行肺内压力通气控制,通过设置有压力导管,可以有效避免插管补偿算法带来的误差,使得呼吸机的压力传感器可直接获取患者肺内压力,并以该压力数据来进行肺内压力控制,取代自动插管阻力补偿方式,有别于传统估算方式,使的测量数据更为精准,获得更好的呼吸机治疗效果。The present invention penetrates into the patient’s trachea through the intubation body composed of an upper hose and a lower hose, and fixes the intubation body by an airbag provided at the outer wall below the lower hose to prevent the patient’s trachea and the intubation body from being sealed The accident caused by gastric juice backflow into the intake tube, where a pressure tube is provided on the inner wall of the main body of the cannula. One end of the pressure tube is located at the end of the lower hose and is used to obtain the patient’s lung pressure data. The other end of the tube extends to the outside of the upper hose and is provided with a pressure sensor connector, which is connected to the pressure sensor of the ventilator, so that the ventilator can control intrapulmonary pressure ventilation according to the acquired patient’s lung pressure data. , Can effectively avoid the error caused by the intubation compensation algorithm, so that the pressure sensor of the ventilator can directly obtain the pressure in the patient's lung, and use the pressure data to control the pressure in the lung, instead of the automatic intubation resistance compensation method, which is different from The traditional estimation method makes the measurement data more accurate and obtains a better ventilator treatment effect.
附图说明Description of the drawings
图1是本实施例提供的一种呼吸机插管的整体结构示意图;Figure 1 is a schematic diagram of the overall structure of a ventilator cannula provided by this embodiment;
[0016图2是本实施例提供的一种呼吸机插管的压力导管的整体结构示意图; [0016 FIG. 2 is a schematic diagram of the overall structure of a pressure catheter for a ventilator intubation provided by this embodiment;
图3是本实施例提供的一种呼吸机插管使用方法的流程图;Figure 3 is a flow chart of a method for using a ventilator intubation provided by this embodiment;
图4是本实施例提供的一种呼吸机的框架图。Fig. 4 is a frame diagram of a ventilator provided in this embodiment.
附图标记:1、插管主体;11、上部软管;12、下部软管;2、气源接头;3、气囊;4、压力导管;41、压力传感器接头;42、单向阀;43、防塞管;431、取样通孔;5、气囊导管;51、充气接口;52、单向充气阀;6、刻度线。Reference signs: 1. Intubation body; 11, upper hose; 12, lower hose; 2. air supply connector; 3. air bag; 4. pressure tube; 41, pressure sensor connector; 42, one-way valve; 43 1. Anti-clogging tube; 431. Sampling through hole; 5. Balloon catheter; 51. Inflation interface; 52. One-way inflation valve; 6. Scale line.
本发明的最佳实施方式The best mode of the invention
本发明进一步设置为:所述插管主体内还设有与所述插管主体另一侧内壁固定连接的气囊导管,所述气囊导管的一端与所述气囊密封连接,所述气囊导管的另一端延展至所述上部软管外部并固定连接有用于向所述气囊充气的充气接口。The present invention is further provided as follows: the cannula body is also provided with a balloon catheter fixedly connected to the inner wall of the other side of the cannula body, one end of the balloon catheter is hermetically connected with the balloon, and the other of the balloon catheter One end extends to the outside of the upper hose and is fixedly connected with an inflation interface for inflating the airbag.
本发明进一步设置为:所述充气接口内设有单向充气阀,所述单向充气阀的两端分别与气囊导管和充气接口连接。The present invention is further configured as: a one-way inflation valve is provided in the inflation interface, and two ends of the one-way inflation valve are respectively connected with the balloon catheter and the inflation interface.
本发明进一步设置为:所述下部软管的外部管壁上标刻有刻度线。The present invention is further provided that: the outer tube wall of the lower hose is marked with a graduation line.
本发明进一步设置为:所述压力导管的一端设有多个防塞管,多个所述防塞管与所述压力导管固定连接,在所述防塞管背离所述压力导管的一端开设有取样通孔。The present invention is further provided as follows: one end of the pressure conduit is provided with a plurality of anti-clogging pipes, the plurality of the anti-clogging pipes are fixedly connected with the pressure pipe, and a sampling through hole is opened at the end of the anti-clogging pipe away from the pressure pipe .
本发明进一步设置为:所述压力传感器接头内设有单向阀,所述单向阀的两端分别与所述压力导管和所述压力传感器接头连接。The present invention is further provided as follows: a one-way valve is arranged in the pressure sensor connector, and two ends of the one-way valve are respectively connected with the pressure pipe and the pressure sensor connector.
本发明进一步设置为:所述压力传感器、所述比较器、所述肺内压力控制模块均设于所述呼吸机内部并与所述呼吸机电性连接。 The present invention is further configured that: the pressure sensor, the comparator, and the intrapulmonary pressure control module are all arranged inside the ventilator and electrically connected to the ventilator.
本发明进一步设置为:在下部软管表面涂覆的润滑剂的厚度为0.1mm-1mm。The present invention is further configured as follows: the thickness of the lubricant coated on the surface of the lower hose is 0.1mm-1mm.
本发明进一步设置为:所述压力传感器为差压式压力传感器。The present invention is further provided that: the pressure sensor is a differential pressure sensor.
本发明的实施方式Embodiments of the invention
根据第一方面,本发明实施例提供了一种呼吸机插管,请参阅图1和图2,图1是本实施例提供的一种呼吸机插管的整体结构示意图,图2是本实施例提供的一种呼吸机插管的压力导管的整体结构示意图,本发明公开的一种呼吸机插管包括与呼吸机配合使用的插管主体1,插管主体1包括一体连接的上部软管11和下部软管12,其中,上部软管11的顶端连接有气源接头2,下部软管12下方的外壁处设有与下部软管12密封连接的气囊3,插管主体1内设有与插管主体1一侧内壁固定连接的压力导管4,压力导管4的一端位于下部软管12的末端,压力导管4的另一端延展至上部软管12外部并设有压力传感器接头41。According to the first aspect, an embodiment of the present invention provides a ventilator cannula, please refer to Figures 1 and 2. Figure 1 is a schematic diagram of the overall structure of a ventilator cannula provided in this embodiment, and Figure 2 is this embodiment The example provides a schematic diagram of the overall structure of a pressure catheter of a ventilator cannula. The ventilator cannula disclosed in the present invention includes a cannula main body 1 used in conjunction with the ventilator, and the cannula main body 1 includes an integrally connected upper hose 11 and the lower hose 12, wherein the top end of the upper hose 11 is connected with an air supply connector 2, and the outer wall below the lower hose 12 is provided with an air bag 3 that is sealed and connected with the lower hose 12, and the intubation body 1 is provided with One end of the pressure pipe 4 is fixedly connected to the inner wall of the cannula body 1 at the end of the lower hose 12, and the other end of the pressure pipe 4 extends to the outside of the upper hose 12 and is provided with a pressure sensor connector 41.
其中,气源接头2与上部软管11可采用螺纹连接,亦可采用过盈连接,目的在于便于更换气源接头2,以适配呼吸机,增强呼吸机插管的实用性。Among them, the air source connector 2 and the upper hose 11 can be connected by threaded or interference connection. The purpose is to facilitate the replacement of the air source connector 2 to fit the ventilator and enhance the practicability of the ventilator intubation.
在具体实施过程中,设于插管主体1内的压力导管4便于呼吸机插管的取放,防止设备损坏,设于下部软管12下方处的气囊3用于在下部软管12探入患者气管内时固定下部软管12,其与下部软管12密封连接,防止因呼吸机插管密封性不严而致使的患者胃液渗透现象,压力导管4的一端延展至下部软管12的末端,用于直接取样患者肺内压力,其另一端设有的压力传感器接头41便于压力导管4与呼吸机的压力传感器连接,用于传导患者肺内压力并为呼吸机提供反馈参数。In the specific implementation process, the pressure tube 4 provided in the main body 1 of the intubation tube facilitates the access of the intubation tube of the ventilator to prevent damage to the equipment. The airbag 3 provided below the lower tube 12 is used to penetrate the lower tube 12 When the patient’s trachea is fixed, the lower tube 12 is sealed and connected to the lower tube 12 to prevent the patient’s gastric juice from infiltrating due to the lack of tightness of the ventilator intubation. One end of the pressure tube 4 extends to the end of the lower tube 12 It is used to directly sample the pressure in the patient's lungs, and the pressure sensor connector 41 provided at the other end is convenient for connecting the pressure tube 4 with the pressure sensor of the ventilator, and is used to transmit the pressure in the patient's lungs and provide feedback parameters for the ventilator.
需要说明的是,上部软管11具有伸缩性,可延展出一定长度,以此满足不同使用环境下,与上部软管11的顶端连接的气源接头2能够与呼吸机连接。It should be noted that the upper hose 11 is flexible and can be extended to a certain length, so as to satisfy that the air source connector 2 connected to the top of the upper hose 11 can be connected to the ventilator under different usage environments.
如图1所示,下部软管12的外部管壁上标刻有刻度线6,即通过刻度线6明晰下部软管12探入患者气管内的进度,防止误伤患者体内器官,提高呼吸机插管的安全性。 As shown in Figure 1, the outer tube wall of the lower tube 12 is marked with a scale line 6, which clarifies the progress of the lower tube 12 into the patient’s trachea through the scale line 6, preventing accidental injury to the patient’s internal organs and improving the insertion of the ventilator. The safety of the tube.
在具体实施过程中,插管主体1内还设有与插管主体1另一侧内壁固定连接的气囊导管5,气囊导管5的一端与气囊3密封连接,气囊导管5的另一端延展至上部软管11外部并固定连接有用于向气囊3充气的充气接口51,即在下部软管12探入患者气管内后,通过充气接口51连接呼吸机并由呼吸机通过气囊导管5向气囊3内冲入空气,使气囊3膨胀并充盈至患者气管内,达到固定下部软管12的目的。In the specific implementation process, the cannula body 1 is also provided with a balloon catheter 5 fixedly connected to the inner wall of the other side of the cannula body 1. One end of the balloon catheter 5 is sealed to the balloon 3, and the other end of the balloon catheter 5 extends to the upper part. The outside of the hose 11 is fixedly connected with an inflation port 51 for inflating the airbag 3, that is, after the lower hose 12 penetrates into the patient’s trachea, the ventilator is connected through the inflation port 51 and the ventilator enters the airbag 3 through the balloon catheter 5 The air is blown in to expand and inflate the airbag 3 into the patient's trachea, achieving the purpose of fixing the lower hose 12.
需要说明的是,充气接口51内设有单向充气阀52,单向充气阀52的两端分别与气囊导管5和充气接口51连接,即使得空气只能沿充气接口51向气囊3内流动,以此保证在向气囊3充入空气的过程中或者气囊3处于充盈的状态下,空气不会由气囊3逆流至呼吸机,提升呼吸机插管的安全性和实用性。It should be noted that a one-way inflation valve 52 is provided in the inflation interface 51, and both ends of the one-way inflation valve 52 are respectively connected to the balloon catheter 5 and the inflation interface 51, that is, the air can only flow into the airbag 3 along the inflation interface 51 In this way, it is ensured that during the process of inflating the airbag 3 or when the airbag 3 is in an inflated state, the air will not flow backward from the airbag 3 to the ventilator, which improves the safety and practicability of the intubation of the ventilator.
如图1和图2所示,压力导管4的一端设有多个防塞管43,多个防塞管43与压力导管4固定连接,在防塞管43背离压力导管4的一端开设有取样通孔431,通过此设置,可防止因患者分泌物阻塞压力导管4的取样端而使得压力导管4取样不准的问题,即通过设计多条开有取样通孔431的防塞管43来克服压力导管4的堵塞问题,提高呼吸机插管的实用性。As shown in Figures 1 and 2, a plurality of anti-clogging tubes 43 are provided at one end of the pressure conduit 4, and the plurality of anti-clogging tubes 43 are fixedly connected to the pressure conduit 4, and a sampling through hole 431 is opened at the end of the anti-clogging tube 43 away from the pressure conduit 4 By this arrangement, the problem of inaccurate sampling of the pressure catheter 4 due to the obstruction of the sampling end of the pressure catheter 4 by the patient’s secretions can be prevented. That is, multiple anti-clogging tubes 43 with sampling through holes 431 are designed to overcome the problem of the pressure catheter 4 Blockage problem improves the practicability of ventilator intubation.
在具体实施过程中,防塞管43的数量可为4个,防塞管43亦与下部软管12的内壁固定连接,提高压力导管4的取样精准度。In a specific implementation process, the number of the anti-clogging tube 43 can be four, and the anti-clogging tube 43 is also fixedly connected to the inner wall of the lower hose 12 to improve the sampling accuracy of the pressure tube 4.
需要说明的是,压力传感器接头41内设有单向阀42,单向阀42的两端分别与压力导管4和压力传感器接头41连接。It should be noted that the pressure sensor connector 41 is provided with a one-way valve 42, and two ends of the one-way valve 42 are respectively connected to the pressure pipe 4 and the pressure sensor connector 41.
根据第二方面,本发明实施例提供了一种呼吸机插管使用方法,请参阅图3和图4,包括以下步骤:According to the second aspect, an embodiment of the present invention provides a method for using a ventilator intubation. Please refer to Figures 3 and 4, which includes the following steps:
[0039步骤S100,在下部软管表面涂覆麻醉剂和润滑剂; [0039 Step S100, coating anesthetic and lubricant on the surface of the lower hose;
步骤S200,将下部软管插入患者的气管内;Step S200, insert the lower hose into the patient's trachea;
步骤S300,向气囊内充气并使气囊卡于患者气管处;Step S300, inflate the airbag and make the airbag jam in the patient's trachea;
步骤S400,将压力传感器接头和气源接头与呼吸机连接以进行肺内压力通气控制;Step S400, connecting the pressure sensor connector and the air source connector to the ventilator to perform intrapulmonary pressure ventilation control;
步骤S500,通过呼吸机上的压力传感器测量获取患者肺内压力;In step S500, the pressure in the lung of the patient is measured by the pressure sensor on the ventilator;
步骤S600,将压力传感器获取的压力值传输到呼吸机并与呼吸机内的比较器设定的阀值进行比较;In step S600, the pressure value obtained by the pressure sensor is transmitted to the ventilator and compared with the threshold set by the comparator in the ventilator;
步骤S700,将比较器的比较结果输出到肺内压力控制模块;Step S700, output the comparison result of the comparator to the lung pressure control module;
步骤S800,肺内压力控制模块控制呼吸机进行肺内压力控制通气。In step S800, the intrapulmonary pressure control module controls the ventilator to perform intrapulmonary pressure control ventilation.
进一步的,压力传感器、比较器、肺内压力控制模块均设于呼吸机内部并与呼吸机电性连接。Further, the pressure sensor, the comparator, and the lung pressure control module are all arranged inside the ventilator and electrically connected to the ventilator.
进一步的,压力传感器为差压式压力传感器。Further, the pressure sensor is a differential pressure sensor.
其中,本发明的目的在于在呼吸机的压力控制通气自动插管阻力补偿(ATC)过程中,直接探取患者肺内压力而进行控制,即压力传感器亦称之为ATC压力传感器。Among them, the purpose of the present invention is to directly detect the pressure in the patient's lungs for control during the pressure control ventilation automatic intubation resistance compensation (ATC) process of the ventilator, that is, the pressure sensor is also called the ATC pressure sensor.
进一步的,在下部软管表面涂覆的润滑剂的厚度为0.1mm-1mm。Further, the thickness of the lubricant coated on the surface of the lower hose is 0.1mm-1mm.
综上所述,本发明具有以下有益效果:本发明在由上部软管11和下部软管12组成的插管主体1的一侧内壁固定连接有压力导管4,压力导管4的一端位于下部软管12的末端且设有多个防塞管43,在防塞管43背离压力导管4的一端开设有取样通孔431,以此设计可以有效避免现有技术的插管补偿算法带来的误差,使得呼吸机的压力传感器可直接获取患者肺内压力,并以该压力数据来进行肺内压力控制,取代自动插管阻力补偿方式,有别于传统估算方式,使的测量数据更为精准,获得更好的呼吸机治疗效果。In summary, the present invention has the following beneficial effects: the present invention is fixedly connected to the inner wall of one side of the cannula main body 1 composed of the upper hose 11 and the lower hose 12 with a pressure tube 4, and one end of the pressure tube 4 is located in the lower part of the soft tube. The end of the tube 12 is provided with a plurality of anti-clogging tubes 43, and a sampling through hole 431 is opened at the end of the anti-clogging tube 43 facing away from the pressure conduit 4. This design can effectively avoid errors caused by the prior art intubation compensation algorithm, so that The pressure sensor of the ventilator can directly obtain the patient's lung pressure, and use the pressure data to control the lung pressure, replacing the automatic intubation resistance compensation method, which is different from the traditional estimation method, making the measurement data more accurate and obtaining better results. Good ventilator treatment effect.
工业实用性Industrial applicability
本申请具有工业实用性。This application has industrial applicability.

Claims (10)

  1. 一种呼吸机插管,包括与呼吸机配合使用的插管主体,其特征在于:所述插管主体包括一体连接的上部软管和下部软管,所述上部软管的顶端连接有气源接头,所述下部软管下方的外壁处设有与所述下部软管密封连接的气囊,所述插管主体内设有与所述插管主体一侧内壁固定连接的压力导管,所述压力导管的一端位于所述下部软管的末端,所述压力导管的另一端延展至所述上部软管外部并设有压力传感器接头,所述压力传感器接头用于与所述呼吸机的压力传感器连接。 A respirator cannula, comprising a cannula main body used in conjunction with a ventilator, characterized in that: the cannula main body comprises an upper hose and a lower hose that are integrally connected, and the top end of the upper hose is connected with an air source The outer wall below the lower hose is provided with an air bag sealed and connected with the lower hose, and the cannula body is provided with a pressure conduit fixedly connected to the inner wall of one side of the cannula body. One end of the catheter is located at the end of the lower hose, and the other end of the pressure catheter extends to the outside of the upper hose and is provided with a pressure sensor connector, which is used to connect with the pressure sensor of the ventilator .
  2. 如权利要求1所述的一种呼吸机插管,其特征在于,所述插管主体内还设有与所述插管主体另一侧内壁固定连接的气囊导管,所述气囊导管的一端与所述气囊密封连接,所述气囊导管的另一端延展至所述上部软管外部并固定连接有用于向所述气囊充气的充气接口。 A ventilator cannula according to claim 1, wherein the cannula body is further provided with a balloon catheter fixedly connected to the inner wall of the other side of the cannula body, and one end of the balloon catheter is connected to The airbag is connected in a sealed manner, and the other end of the airbag catheter extends to the outside of the upper hose and is fixedly connected with an inflation interface for inflating the airbag.
  3. 如权利要求2所述的一种呼吸机插管,其特征在于,所述充气接口内设有单向充气阀,所述单向充气阀的两端分别与气囊导管和充气接口连接。 The intubation for a ventilator according to claim 2, wherein a one-way inflation valve is provided in the inflation interface, and two ends of the one-way inflation valve are respectively connected to the balloon catheter and the inflation interface.
  4. 如权利要求1所述的一种呼吸机插管,其特征在于,所述下部软管的外部管壁上标刻有刻度线。 The respirator cannula according to claim 1, wherein the outer tube wall of the lower hose is marked with graduation lines.
  5. 如权利要求1所述的一种呼吸机插管,其特征在于,所述压力导管的一端设有多个防塞管,多个所述防塞管与所述压力导管固定连接,在所述防塞管背离所述压力导管的一端开设有取样通孔。 The ventilator cannula according to claim 1, wherein a plurality of anti-clogging tubes are provided at one end of the pressure catheter, and the plurality of the anti-clogging tubes are fixedly connected with the pressure catheter, and the A sampling through hole is opened at one end away from the pressure conduit.
  6. 如权利要求1所述的一种呼吸机插管,其特征在于,所述压力传感器接头内设有单向阀,所述单向阀的两端分别与所述压力导管和所述压力传感器接头连接。 The ventilator cannula according to claim 1, wherein the pressure sensor connector is provided with a one-way valve, and two ends of the one-way valve are connected to the pressure tube and the pressure sensor respectively. connection.
  7. 一种呼吸机插管使用方法,其特征在于,包括: A method for using intubation of a ventilator is characterized in that it comprises:
    在下部软管表面涂覆麻醉剂和润滑剂;Coat the surface of the lower hose with anesthetic and lubricant;
    将下部软管插入患者的气管内;Insert the lower hose into the patient’s trachea;
    向气囊内充气并使气囊卡于患者气管处;Inflate the airbag and make the airbag stuck in the patient's trachea;
    将压力传感器接头和气源接头与呼吸机连接以进行肺内压力通气控制;Connect the pressure sensor connector and the air source connector to the ventilator to control intrapulmonary pressure ventilation;
    通过呼吸机上的压力传感器测量获取患者肺内压力;Obtain the patient's lung pressure through the pressure sensor on the ventilator;
    将压力传感器获取的压力值传输到呼吸机并与呼吸机内的比较器设定的阀值进行比较;Transmit the pressure value obtained by the pressure sensor to the ventilator and compare it with the threshold set by the comparator in the ventilator;
    将比较器的比较结果输出到肺内压力控制模块;Output the comparison result of the comparator to the lung pressure control module;
    肺内压力控制模块控制呼吸机进行肺内压力控制通气。The intrapulmonary pressure control module controls the ventilator to perform intrapulmonary pressure control ventilation.
  8. 如权利要求7所述的一种呼吸机插管使用方法,其特征在于,所述压力传感器、所述比较器、所述肺内压力控制模块均设于所述呼吸机内部并与所述呼吸机电性连接。 The method for using a ventilator intubation according to claim 7, wherein the pressure sensor, the comparator, and the intrapulmonary pressure control module are all installed inside the ventilator and are connected to the breathing machine. Electromechanical connection.
  9. 如权利要求7所述的一种呼吸机插管使用方法,其特征在于,在所述下部软管表面涂覆的润滑剂的厚度为0.1mm-1mm。 The method for using the intubation of a ventilator according to claim 7, wherein the thickness of the lubricant coated on the surface of the lower hose is 0.1 mm-1 mm.
  10. 如权利要求8所述的一种呼吸机插管使用方法,其特征在于,所述压力传感器为差压式压力传感器。 8. The method for using a ventilator cannula according to claim 8, wherein the pressure sensor is a differential pressure sensor.
     To
PCT/CN2019/092115 2019-06-20 2019-06-20 Ventilator intubation tube and using method WO2020252748A1 (en)

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Citations (6)

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US5235973A (en) * 1991-05-15 1993-08-17 Gary Levinson Tracheal tube cuff inflation control and monitoring system
CN202355672U (en) * 2011-11-17 2012-08-01 上海交通大学医学院附属仁济医院 Multifunctional tracheal catheter
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CN107376087A (en) * 2017-08-31 2017-11-24 河南驼人医疗器械集团有限公司 One kind can survey gasbag pressure trachea cannula
CN207654507U (en) * 2017-06-20 2018-07-27 江苏台源医疗器械科技有限公司 A kind of multifunctional trachea catheter
CN208799643U (en) * 2018-05-08 2019-04-30 复旦大学附属金山医院 It is a kind of can simultaneously row mechanical ventilation and bronchoscopy and treatment tracheal catheter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5235973A (en) * 1991-05-15 1993-08-17 Gary Levinson Tracheal tube cuff inflation control and monitoring system
CN202355672U (en) * 2011-11-17 2012-08-01 上海交通大学医学院附属仁济医院 Multifunctional tracheal catheter
CN204840567U (en) * 2015-07-17 2015-12-09 宋兴荣 Person's windpipe atmospheric pressure measuring device
CN207654507U (en) * 2017-06-20 2018-07-27 江苏台源医疗器械科技有限公司 A kind of multifunctional trachea catheter
CN107376087A (en) * 2017-08-31 2017-11-24 河南驼人医疗器械集团有限公司 One kind can survey gasbag pressure trachea cannula
CN208799643U (en) * 2018-05-08 2019-04-30 复旦大学附属金山医院 It is a kind of can simultaneously row mechanical ventilation and bronchoscopy and treatment tracheal catheter

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