WO2020252748A1 - Ventilator intubation tube and using method - Google Patents
Ventilator intubation tube and using method Download PDFInfo
- 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
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ventilator
- pressure
- pressure sensor
- cannula
- hose
- Prior art date
Links
- 238000002627 tracheal intubation Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 24
- 210000004072 lung Anatomy 0.000 claims abstract description 19
- 210000003437 trachea Anatomy 0.000 claims description 13
- 238000009423 ventilation Methods 0.000 claims description 10
- 238000005070 sampling Methods 0.000 claims description 9
- 239000000314 lubricant Substances 0.000 claims description 6
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 4
- 230000003444 anaesthetic effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 210000004051 gastric juice Anatomy 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000000241 respiratory effect Effects 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 208000028399 Critical Illness Diseases 0.000 description 1
- 208000004756 Respiratory Insufficiency Diseases 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 238000002680 cardiopulmonary resuscitation Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 201000004193 respiratory failure Diseases 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
- A61M16/04—Tracheal 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.
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- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Emergency Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
Description
Claims (10)
- 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 .
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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
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PCT/CN2019/092115 WO2020252748A1 (en) | 2019-06-20 | 2019-06-20 | Ventilator intubation tube and using method |
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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 |
CN204840567U (en) * | 2015-07-17 | 2015-12-09 | 宋兴荣 | Person's windpipe atmospheric pressure measuring device |
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 |
-
2019
- 2019-06-20 WO PCT/CN2019/092115 patent/WO2020252748A1/en active Application Filing
Patent Citations (6)
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 |
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