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WO2016119561A1 - Respirateur et aide respiratoire associée - Google Patents

Respirateur et aide respiratoire associée Download PDF

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Publication number
WO2016119561A1
WO2016119561A1 PCT/CN2015/099890 CN2015099890W WO2016119561A1 WO 2016119561 A1 WO2016119561 A1 WO 2016119561A1 CN 2015099890 W CN2015099890 W CN 2015099890W WO 2016119561 A1 WO2016119561 A1 WO 2016119561A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
nasal
airway
pressure
sampling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2015/099890
Other languages
English (en)
Chinese (zh)
Inventor
邹栋
吴本清
贺百元
王润生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Comen Medical Instruments Co Ltd
Original Assignee
Shenzhen Comen Medical Instruments Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Comen Medical Instruments Co Ltd filed Critical Shenzhen Comen Medical Instruments Co Ltd
Publication of WO2016119561A1 publication Critical patent/WO2016119561A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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

Definitions

  • the present invention relates to medical devices, and more particularly to a ventilator and an airway assisting device thereof.
  • NICU Current neonatal intensive care unit
  • Respiratory ventilation is the main ventilation method with intubation mechanical ventilation and nasal noninvasive ventilation. Because intubation mechanical ventilation treatment has more complications for neonates and premature infants, nasal non-invasive positive airway pressure is more and more respected.
  • Clinical neonatal respiratory distress syndrome NRDS compared with conventional ventilation therapy is nasal CPAP (Continuous Positive Airway Pressure) Ventilation therapy.
  • NRDS National Positive Airway Pressure
  • CPAP Continuous Positive Airway Pressure
  • the water-sealed end-expiratory positive pressure device and the mechanical knob-type end-expiratory positive pressure valve device cannot accurately measure the airflow pressure in the airway device, thereby failing to meet the increasingly high clinical requirements.
  • An airway auxiliary device includes a nasal tube and a pressure monitoring member, wherein one end of the nasal tube is an air inlet end, and the other end is an air outlet end, and a nose portion is disposed between the air inlet end and the air outlet end. The nose is used to connect the patient's nasal cavity to input gas into the airway;
  • the pressure monitoring member is disposed at the intake end, the pressure monitoring member includes a connector and a sampling tube, and one end of the sampling tube is connected to the connector, and the connector is connected to the air inlet.
  • the sampling tube is received in an intake end of the nasal tube, and the other end of the sampling tube is adjacent to the nose.
  • the nose portion includes a body and two nasal conduits on the body, the nasal conduits for receiving within the nose, the nasal conduits being curved.
  • the body is provided with a curved concave surface for recessing toward the nose.
  • the connector includes a tube body, a sampling tube connection port, and a tapered surface
  • the diameter of the sampling tube connection port is smaller than the diameter of the tube body
  • the tapered surface is connected to the sampling tube
  • the connection port is connected to the tube body, and the sampling tube connection port is received in the nasal tube, and the tapered surface seals the nasal tube.
  • the connector further includes a monitoring connection port for connecting to the air pressure monitor, the monitoring connection port being disposed on an outer sidewall of the tube body.
  • a pressure generator is further included, the pressure generator is disposed at the gas outlet end, and the pressure generator has a pore diameter smaller than an aperture of the gas outlet end.
  • the end of the pressure generator near the air outlet end of the nasal tube is a first connection end, the first connection end is tapered, and the first connection end is sealed with the air outlet end.
  • an anti-blocking tube is further included, and the other end of the pressure generator is a second connecting end, and the anti-blocking tube is sealingly connected to the second connecting end.
  • the anti-blocking tube is a telescopic tube, and exhaust holes are formed in sidewalls of both ends of the anti-blocking tube.
  • a ventilator includes the above airway auxiliary device, a gas pressure monitor, and a flow controller.
  • the air pressure monitor collects a gas pressure value in the nasal tube close to the nose portion through the collecting tube, and feeds back the air pressure value to the flow controller, and the flow controller controls the output fresh according to the air pressure value. Gas flow.
  • the end of the sampling tube is close to the nose, and the pressure monitoring member can measure the pressure near the nose, closer to the actual pressure of the patient near the nose, and avoid the nasal canal and
  • the resistance of the breathing circuit affects the sampling tube sampling airway pressure value results, so as to achieve accurate measurement. It is convenient for medical staff to know the airway pressure inhaled by the patient in time to meet the clinical needs.
  • Figure 1 is a perspective structural view of an airway assisting device of the present embodiment
  • Figure 2 is a gas flow diagram of the airway assisting device shown in Figure 1;
  • Figure 3 is a cross-sectional view of the nasal cannula of the airway assisting device shown in Figure 1;
  • Figure 4 is a schematic cross-sectional view of the nasal tube shown in Figure 3;
  • Figure 5 is a cross-sectional view of the nasal portion of the nasal tube shown in Figure 3;
  • Figure 6 is a perspective view of the pressure monitoring member of the nasal cannula of the airway assisting device shown in Figure 1;
  • Figure 7 is a perspective view of the pressure generator of the nasal cannula of the airway assisting device shown in Figure 1;
  • Figure 8 is a cross-sectional view of the pressure generator shown in Figure 7;
  • Fig. 9 is a partial enlarged view of a portion A of the air passage assisting device shown in Fig. 1.
  • the ventilator (not shown) of the present embodiment includes an airway auxiliary device, a gas pressure monitor (not shown), and a flow controller (not shown).
  • the air pressure monitor obtains the air pressure value in the nasal tube close to the nose through the collecting tube, and feeds the air pressure value to the flow controller, and the flow controller controls the output of the fresh gas flow according to the air pressure value.
  • the ventilator is used in the neonatal intensive care unit and is installed on or near the nursery box to provide nasal continuous airway ventilation for the newborn.
  • the airway assisting device 100 of the present embodiment includes a nasal tube 110 , a pressure monitoring member 120 , and a pressure generator 130 .
  • one end of the nasal tube 110 is an air inlet end 111, and the other end is an air outlet end 112.
  • a nose portion 113 is provided between the intake end 111 and the air outlet end 112. The nose 113 is used to connect the patient's nasal cavity to introduce gas into the patient's airway.
  • the fresh gas outlet is for discharging fresh air, the fresh gas enters from the inlet end 111, the fresh gas passes through the nose 113 into the airway of the patient, and the patient exhales carbon dioxide, and the carbon dioxide gas is discharged from the outlet end 112 to the atmosphere.
  • the nose portion 113 includes a body and two nasal conduits 115 on the body 114.
  • the nasal cannula 115 is housed in the nose.
  • the nasal cannula 115 is curved.
  • Two nasal cannulas 115 extend into the nostrils of the patient, respectively.
  • the nasal cannula 115 is designed to be curved in accordance with the anatomical structure of the human body, and can reduce the damage of the nasal canal 115 to the internal tissue of the nasal cavity.
  • the distance between the two nasal cannulas 115 of the nasal tube 110 is divided into a plurality of specifications according to the size of the nasal septum and the nostrils. For patients of different ages, a nasal tube 110 of a suitable size is selected. Avoid too much or too little distance between the two nasal cannulas 115, damage the patient's nasal cavity and increase discomfort.
  • the body 114 is provided with a curved concave surface 116 that is recessed adjacent one side of the nose.
  • the curved concave surface 116 abuts the nasal post of the nose (i.e., between the nose and the person).
  • the curved concave surface 116 abuts against the patient's nasal column, and the curved concave surface 116 is designed to be ergonomically designed to avoid compression of the nose.
  • the nasal tube 110 is a silicone tube.
  • the nasal tube 110 is a round tube.
  • the nasal tube 110 is made of medical grade soft silicone, the nasal tube 110 has a low hardness, and the nasal tube 110 has a rounded shape. Therefore, the nasal tube 110 is made of a soft silicone material, which is easy to install for clinical use and has nasal damage to the child. Small, more in line with the clinical use needs of the neonatal intensive care unit NICU, can reduce the facial damage of the nasal canal 110 to patients, especially newborns.
  • the pressure monitoring component 120 is disposed at the intake end 111 .
  • the pressure monitoring component 120 includes a connector 121 and a sampling tube 122 .
  • One end of the sampling tube 122 is connected to the connector 121 , and the connector 121 is connected to the air inlet 111 .
  • the sampling tube 122 is housed in the nasal tube 110, and the distal end 123 of the sampling tube 122 is adjacent to the nose portion 113.
  • the sampling tube 122 extends into the nasal tube 110 and is adjacent to the position of the nose portion 113. This prevents the sampling tube 122 from being exposed and wraps, and the end of the sampling tube 122 can be sampled closer to the nose portion 113.
  • the patient's airway pressure can be measured more accurately than in the conventional manner, so that the medical staff can timely understand the airway pressure of the patient in the nasal canal 110 of the respiratory assist device 100.
  • the connector 121 includes a tube 124 that is not visible in the drawing, a sampling tube connection port 125, and a tapered surface 126.
  • the diameter of the sampling tube connection port 125 is smaller than the diameter of the tube body, the tapered surface 126 is connected to the sampling tube connection port 125 and the tube body, the sampling tube connection port 125 is received in the nasal tube 110, and the tapered surface 126 seals the nasal tube 110.
  • the connector 121 also includes a monitoring connection port 127 for connecting to the air pressure monitor, and the monitoring connection port 127 is disposed on the outer side wall of the tube body 124.
  • the sampling tube 122 transmits the air pressure in the nasal tube 110 close to the nose 113 to the air pressure monitor at the monitoring connection port 127, so that the air pressure monitor obtains the air pressure value at the patient's near nose, which is closer to the actual airway of the patient.
  • the pressure value is safer and more reliable for clinical use.
  • the air pressure monitor feeds back the measured pressure value to the flow controller, and the flow controller compares the pressure value with the set pressure value, thereby controlling the flow controller of the ventilator to control the output of the fresh gas flow, thereby achieving Control the pressure to achieve high precision control of the patient's airway pressure.
  • the ventilator can adjust the air pressure in the pipeline of the nasal tube 110 in time, and the ventilator can maintain the proper pressure in the pipeline of the respiratory assist device 100, thereby effectively avoiding the uncomfortable feeling caused by the improper air pressure.
  • the pressure generator 130 is disposed at the air outlet end 112, and the aperture of the pressure generator 130 is smaller than the aperture of the air outlet end 112.
  • One end of the pressure generator 130 near the outlet end 112 of the nasal tube 110 is a first connection end 131 and the other end is a second connection end 132.
  • the first connecting end 131 is tapered, and the first connecting end 131 is sealingly connected to the air outlet end 112 .
  • a bent portion 134 is provided at the port of the second connecting end 132.
  • a pressing portion 133 is formed between the first connecting end 131 and the second connecting end 132, and the first connecting end 131, the second connecting end 132, and the pressing portion 133 are penetrated.
  • the first connecting end 131 and the second connecting end 132 are provided with an air passage 136, and the pressing portion 133 is provided with a pressing passage 135.
  • the diameter of the pressing passage 135 is smaller than the air passages of the first connecting end 131 and the second connecting end 132. 136. Therefore, the gas is passed through the pressurizing passage 135, and the resistance is large, so that the inside of the pipe of the nasal tube 110 is pressurized.
  • the pressure passage 135 has a diameter of 2-4 mm, and the pressure passage 135 has a length of 4-8 mm.
  • the pressure generator 130 acts to pressurize the air pressure inside the nasal tube 110, so that the pressure and flow rate in the nasal tube 110 meet the medical use requirements.
  • the air passage 136 assisting device 100 of the present embodiment further includes an anti-blocking tube 140 , and the anti-blocking tube 140 is sealingly connected to the second connecting end 132 .
  • the second connecting end 132 is received in the anti-blocking tube 140, and the bent portion 134 is tightly connected to the inner side wall of the anti-blocking tube 140 to seal the return portion 134 with the anti-blocking tube 140.
  • the cross-section of the curved portion 134 is a right-angled trapezoid, and the end surface of the curved portion 134 is provided with a slope 134a for guiding, so that the second connecting end 132 can be smoothly prevented. Block the tube 140.
  • a vent hole 141 is defined in a sidewall of the anti-blocking tube 140.
  • the two ends of the anti-blocking tube 140 are provided with a plurality of exhaust holes 141.
  • the anti-blocking tube 140 is a telescopic tube. Specifically, in the present embodiment, the anti-blocking tube 140 is a threaded tube.
  • the anti-blocking tube 140 is designed according to the principle of preventing single failure, and is safe and reliable. Moreover, when the anti-blocking tube 140 is used in the nursery box, the anti-blocking tube 140 can discharge the gas and the water vapor to the outside of the nursery box to prevent the nursery box from getting wet.
  • the airway assisting device 100 can achieve not only a single level continuous positive pressure ventilation CPAP (Continuous Positive) Airway Pressure) and can achieve bi-level positive pressure ventilation CPAP ventilation, and the airway assisting device 100 only needs a single nasal tube 110 to connect, in clinical use, reducing the complexity of the pipeline connection and the cost of use.
  • CPAP Continuous Positive Airway Pressure
  • the airway assisting device 100 has the characteristics of simple structure and low clinical use cost compared with the conventional pressure generator which generates the continuous positive air flow by using the injection principle and the Coanda effect. Moreover, the airway assisting device 100 is fixedly mounted in a simple manner and does not cause nasal damage to the newborn. Therefore, the airway assisting device 100 has a low cost, accurate airway pressure measurement, simple installation, small nasal damage to the newborn, and double-level CPAP.

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  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (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)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

La présente invention concerne une aide respiratoire (100) qui comprend un tube nasal (110) et un dispositif de surveillance de pression (120). Une extrémité du tube nasal (110) est une extrémité d'inspiration (111), et son autre extrémité est une extrémité d'expiration (112) ; une entrée nasale (113) est prévue entre l'extrémité d'inspiration (111) et l'extrémité d'expiration (112), l'entrée nasale (113) étant utilisée pour le raccordement avec la cavité nasale d'un patient pour faire entrer du gaz dans une voie respiratoire (136). Le dispositif de surveillance de pression (120) est disposé au niveau de l'extrémité d'inhalation (111) et comprend un raccordement (121) et un tube d'échantillonnage (122) ; une extrémité du tube d'échantillonnage (122) est raccordée au raccordement (121), et le raccordement (121) est raccordé à l'extrémité d'inspiration (111) ; le tube d'échantillonnage (122) est logé dans l'extrémité d'inspiration (111) du tube nasal (110), et l'extrémité de queue (123) du tube d'échantillonnage (122) est proche de l'entrée nasale (113). Un respirateur comprend l'aide respiratoire (100). Etant donné que l'extrémité arrière (123) du tube d'échantillonnage (122) est proche de l'entrée nasale (113), le moniteur de pression (120) peut mesurer la pression de l'extrémité proche du nez, la pression étant plus proche de la pression réelle des voies respiratoires du patient, et l'influence de la résistance de la cavité intérieure du tube nasal et d'une ligne respiratoire sur les résultats d'échantillonnage de pression du tube d'échantillonnage (122) est évitée, de sorte qu'une mesure précise est obtenue, et le personnel médical peut connaître à temps la pression des voies respiratoires d'inspiration du patient.
PCT/CN2015/099890 2015-01-29 2015-12-30 Respirateur et aide respiratoire associée Ceased WO2016119561A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510046333.2A CN104667398B (zh) 2015-01-29 2015-01-29 呼吸机及其气道辅助装置
CN201510046333.2 2015-01-29

Publications (1)

Publication Number Publication Date
WO2016119561A1 true WO2016119561A1 (fr) 2016-08-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/099890 Ceased WO2016119561A1 (fr) 2015-01-29 2015-12-30 Respirateur et aide respiratoire associée

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CN (1) CN104667398B (fr)
WO (1) WO2016119561A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104667398B (zh) * 2015-01-29 2017-06-20 深圳市科曼医疗设备有限公司 呼吸机及其气道辅助装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5682881A (en) * 1996-10-21 1997-11-04 Winthrop; Neil Nasal CPAP/Cannula and securement apparatus
CN1956745A (zh) * 2004-04-20 2007-05-02 亚罗擎公司 用于压力辅助型呼吸系统的气雾剂输送装置、方法及制剂
CN101557782A (zh) * 2005-05-06 2009-10-14 Ric投资有限公司 带有呼吸气体测量部件的病人界面装置
CN202569104U (zh) * 2012-02-14 2012-12-05 苏州美迪康进出口有限公司 鼻氧管带et co2取样口
CN202699800U (zh) * 2012-07-12 2013-01-30 钟汉贵 新生儿持续正压通气鼻套管
WO2014142681A1 (fr) * 2013-03-15 2014-09-18 Fisher & Paykel Healthcare Limited Ensembles canules nasales et parties associées
CN203852686U (zh) * 2014-04-24 2014-10-01 深圳安维森实业有限公司 呼吸管和呼吸管组件及呼吸装置
CN104667398A (zh) * 2015-01-29 2015-06-03 深圳市科曼医疗设备有限公司 呼吸机及其气道辅助装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990011791A1 (fr) * 1989-04-13 1990-10-18 Salter Laboratories Systeme d'apport d'oxygene a la demande
WO2009094532A1 (fr) * 2008-01-25 2009-07-30 Salter Labs Système de thérapie respiratoire comprenant un ensemble canule nasale
TWM349271U (en) * 2008-07-02 2009-01-21 Galemed Corp Auxiliary device for breathing
CA2834635C (fr) * 2011-04-29 2019-07-30 Robert Tero Dispositif d'interface nasale
CN203852691U (zh) * 2014-05-20 2014-10-01 深圳市人民医院 新生儿多功能吸氧管

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5682881A (en) * 1996-10-21 1997-11-04 Winthrop; Neil Nasal CPAP/Cannula and securement apparatus
CN1956745A (zh) * 2004-04-20 2007-05-02 亚罗擎公司 用于压力辅助型呼吸系统的气雾剂输送装置、方法及制剂
CN101557782A (zh) * 2005-05-06 2009-10-14 Ric投资有限公司 带有呼吸气体测量部件的病人界面装置
CN202569104U (zh) * 2012-02-14 2012-12-05 苏州美迪康进出口有限公司 鼻氧管带et co2取样口
CN202699800U (zh) * 2012-07-12 2013-01-30 钟汉贵 新生儿持续正压通气鼻套管
WO2014142681A1 (fr) * 2013-03-15 2014-09-18 Fisher & Paykel Healthcare Limited Ensembles canules nasales et parties associées
CN203852686U (zh) * 2014-04-24 2014-10-01 深圳安维森实业有限公司 呼吸管和呼吸管组件及呼吸装置
CN104667398A (zh) * 2015-01-29 2015-06-03 深圳市科曼医疗设备有限公司 呼吸机及其气道辅助装置

Also Published As

Publication number Publication date
CN104667398B (zh) 2017-06-20
CN104667398A (zh) 2015-06-03

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