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WO2018107567A1 - Indicateur de pression - Google Patents

Indicateur de pression Download PDF

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Publication number
WO2018107567A1
WO2018107567A1 PCT/CN2017/072531 CN2017072531W WO2018107567A1 WO 2018107567 A1 WO2018107567 A1 WO 2018107567A1 CN 2017072531 W CN2017072531 W CN 2017072531W WO 2018107567 A1 WO2018107567 A1 WO 2018107567A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover
pressure
upper cover
pressure indicator
joint
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/CN2017/072531
Other languages
English (en)
Chinese (zh)
Inventor
邹德伟
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.)
TIANJIN MEDIS MEDICAL DEVICE CO Ltd
Original Assignee
TIANJIN MEDIS MEDICAL DEVICE 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 TIANJIN MEDIS MEDICAL DEVICE CO Ltd filed Critical TIANJIN MEDIS MEDICAL DEVICE CO Ltd
Publication of WO2018107567A1 publication Critical patent/WO2018107567A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges

Definitions

  • the invention relates to a pressure indicator, which can be used together with a medical device such as an endotracheal tube with a balloon, a tracheotomy cannula, a laryngeal mask, etc., to implement monitoring and feedback to adjust the pressure of the balloon, and belongs to the technical field of medical instruments.
  • a medical device such as an endotracheal tube with a balloon, a tracheotomy cannula, a laryngeal mask, etc.
  • a laryngeal mask, an endotracheal tube, and a tracheotomy tube are often used to establish an artificial airway for the patient in emergency work and respiratory management to assist in breathing.
  • the structure of a medical device such as a laryngeal mask, an endotracheal tube, a tracheotomy tube, and the like includes an air bag, and a check valve is connected to the air bag.
  • the check valve is filled with gas, and the air bag is filled to achieve a sealed air tube.
  • the purpose is to optimize the patient's oxygen delivery.
  • balloon pressure is very important in endotracheal intubation care.
  • the airbag pressure is an important factor in determining whether the airbag damages the tracheal mucosa. Insufficient airbag inflation or air leakage cannot achieve effective ventilation. Excessive inflation and excessive pressure may cause ischemia or even necrosis of the tracheal wall. important.
  • a pressure indicator to indicate and adjust balloon pressure.
  • there are many methods for measuring the pressure of the airbag generally, the hand-pinch airbag sensation method, the quantitative inflation method, and the airbag pressure gauge measurement method are used clinically.
  • Hand gripping the airbag sensation method is simple and convenient, mainly based on the clinical experience of the medical staff. The judgment of this method is highly different and it is impossible to accurately determine the balloon pressure.
  • Airbag inflation method airbag inflation is generally 5-10ml, this method is different due to different patient models and tracheal intubation models, the airbag inflation amount is not the same, and can not accurately determine the balloon pressure.
  • the airbag pressure gauge measurement method can accurately and scientifically judge the pressure of the airbag, inflate the airbag, deflate and accurately read the value.
  • the structure is complicated, the operation steps are many, and the use is inconvenient.
  • the joint and the fixing device are connected with the one-way valve of the medical device such as the tracheal intubation, and the joint needs to be connected with the one-way valve, and then the folding wing is folded and the lug structure is locked to fix the joint on the balloon inflation tube.
  • the end of the tracheal intubation check valve In order to prevent the end of the tracheal intubation check valve from falling off.
  • the structure is complicated, the operation steps are many, and the use is inconvenient.
  • the air inlet and check valve structure are arranged on the same side as the pressure indication zone, so that the length of the pressure indication zone is relatively small, which is not conducive to observation.
  • the object of the present invention is to provide a pressure indicator capable of communicating with a medical device such as an endotracheal tube with a balloon, a tracheotomy tube, a laryngeal mask, etc., in view of the deficiencies of the prior art.
  • a medical device such as an endotracheal tube with a balloon, a tracheotomy tube, a laryngeal mask, etc.
  • it is simple and convenient to connect with the check valve of medical instruments such as endotracheal intubation, which simplifies the operation steps in use, ensures the firmness and sealing of the connection, and implements monitoring and feedback to adjust the airbag pressure.
  • the indication area is enlarged, which is more convenient for observation, thereby solving the problems existing in the prior art.
  • a pressure indicator comprising a housing consisting of an upper cover and a lower cover, an intermediate assembly comprising an elastic pressure sensing diaphragm and an indicator rod, and a feedback assembly, characterized by: a housing, an intermediate assembly and a feedback assembly,
  • the housing, intermediate components and feedback components, their respective structures are as follows:
  • a housing consisting of an upper cover and a lower cover
  • the intermediate assembly is composed of a sealing cover disposed inside the casing, an elastic pressure sensing diaphragm, a support ring and an indicator rod;
  • the feedback component consists of a loop line and a joint.
  • the upper cover is respectively provided with an air inlet and a ventilation chamber 3 at an arbitrary position thereof, and the upper cover is integrally formed with the air inlet and the ventilation chamber, and the inner side of the upper cover is provided with a convex portion provided with a groove structure a table is provided with a groove at the edge of the upper cover.
  • the air inlet has a design size matching the size of the Luer interface, and a check valve is disposed on the inner side thereof.
  • the sealing cover is fixedly connected between the protrusion provided on the upper portion thereof and the groove on the inner side of the upper cover, and the protrusion is provided with a circular hole in the middle of the protrusion, and the sealing cover is A support ring is embedded in the peripheral wall, and a lower portion of the sealing cover is fixedly connected to the elastic pressure sensing diaphragm to which the indicator rod is attached.
  • the lower cover is provided with a convex groove which can be fixedly connected with the upper cover groove, a pressure indicating area is arranged outside the lower cover, a circular groove is arranged at the lower end of the lower cover, and an interface is arranged at the center of the circular groove.
  • the interface is a luer interface, which can be connected to a one-way valve such as an endotracheal tube medical device, and a sealing sleeve is connected to the circular groove, and a gap is formed between the sealing sleeve and the interface, and the sealing sleeve is Polyvinyl chloride or silica gel flexible polymer material is made of one material.
  • the joint is composed of two hollow conical cavities, and the design size is matched with the standard joint of the anesthesia and respiratory equipment.
  • the joint is provided with a ventilation chamber, and the ventilation chamber can be axially parallel or axially formed with the joint. angle.
  • the loop line has one end connected to the venting chamber located in the upper cover and the other end communicating with the venting chamber on the joint.
  • the circuit pipeline is made of a flexible polymer material, and the diameter of the pipe of the circuit is 1 mm to 4 mm, and the hardness of the pipe body is 60 to 90 HA.
  • the present invention has the following advantages and benefits:
  • the overall structure is simple in shape, convenient to use, small in size, and low in manufacturing cost.
  • the lower cover is provided with a Luer interface and a sealing sleeve, which can be coupled with the one-way valve of the tracheal intubation balloon, and the check valve is directly inserted between the Luer interface and the sealing sleeve during use, and the connection mode is operated. It is simple and ensures the tightness and tightness of the connection, ensuring that the pressure indicator is not leaking during use.
  • the size and size of the joints are designed to match the standard joints of anesthesia and respiratory equipment, so that they can be connected to medical equipment such as ventilators, and the connection is convenient and firm.
  • Bonding or welding can be used between the upper cover and the lower cover, between the upper cover and the sealing cover, between the circuit pipe and the joint, between the circuit pipe and the upper cover, and between the sealing sleeve and the lower cover.
  • the connection method ensures the tightness and tightness of the connection, and ensures that the pressure indicator does not leak when in use.
  • Figure 1 is a cross-sectional view showing the structure of a pressure indicator of the present invention
  • Figure 2 is a perspective view of the upper cover of Figure 1;
  • Figure 3 is a perspective view of the sealing cover of Figure 1;
  • Figure 4 is a cross-sectional view of the lower cover of Figure 1.
  • Figure 1 1 loop line; 2 check valve; 3 venting chamber; 4 sealing cover; 5 support ring; 6 elastic pressure sensing diaphragm; 7 joint; 7-1 conical cavity; 7-2 conical cavity Body; 7-3 ventilation chamber; 8 indicator rod; 9 interface; 10 sealing sleeve; 11 pressure indicating area; 12 lower cover; 13 upper cover;
  • a pressure indicator having a structure as shown in FIG. 1 is composed of a housing A, an intermediate assembly B and a feedback assembly C.
  • the housing A, the intermediate assembly B and the feedback assembly C are respectively configured as follows:
  • the casing A is composed of an upper cover 13 and a lower cover 12;
  • the intermediate assembly B is composed of a sealing cover 4 disposed inside the casing A, an elastic pressure sensing diaphragm 6, a support ring 5 and an indicating rod 8;
  • the feedback component C consists of a loop line 1 and a joint 7.
  • the upper cover 13 is provided at each of its positions with an air inlet 14 and a venting chamber 3, and the upper cover 13 is integrally formed with the air inlet 14 and the venting chamber 3, as shown in FIG.
  • the inside of the cover 13 is provided with a boss 13-3 having a structure of a groove 13-2, and a groove 13-1 is provided at the edge of the upper cover 13.
  • the air inlet 14 is designed to match the size of the Luer interface, and a check valve 2 is disposed on the inner side thereof.
  • the sealing cover 4 is connected and fixed by a protrusion 4-1 disposed on the upper portion thereof and a groove 13-2 as shown in FIG. 2 on the inner side of the upper cover 13.
  • the present invention is designed as a bonding and fixing manner, and a circular hole 4 as shown in FIG. 3 which can communicate with the venting cavity 3 of the upper cover 13 is disposed in the middle of the protrusion 4-1.
  • the inner peripheral wall of the sealing cover 4 is fitted with a support ring 5, and the lower portion of the sealing cover 4 is connected and fixed to the elastic pressure sensing diaphragm 6 to which the indicator rod 8 is attached.
  • the lower cover 12 is provided with a convex groove 12-1 as shown in FIG. 4, which can be connected and fixed to the upper cover groove 13-1.
  • the connection and fixing manner can be welding, bonding and tight fitting.
  • the invention is designed to be a welded connection fixing method, and a pressure indicating area 11 is arranged outside the lower cover 12, and a lower end end of the lower cover 12 is provided with A circular groove 12-2 shown in Fig. 4 is provided at the center of the circular groove 12-2 with an interface 9, which is a luer interface, which can be used with a check valve such as an endotracheal tube medical device.
  • the connection is made, and the sealing sleeve 10 is connected to the circular groove 12-2, and a gap is formed between the sealing sleeve 10 and the interface 9.
  • the sealing sleeve 10 is made of one of polyvinyl chloride and silica gel flexible polymer materials.
  • the sealing sleeve material of the present invention is designed as polyvinyl chloride. Since the sealing sleeve 10 has a certain flexibility, when used, it is allowed.
  • the tracheal intubation check valve can also ensure the connection firmness and sealing performance.
  • the sealing sleeve 10 can be formed into a hollow cylindrical shape, a hollow conical shape and the like, and the shape is not limited thereto, as long as it can be intubated with the trachea.
  • the check valve is connected and can be fixed and sealed after connection.
  • the joint 7, as shown in Figure 1, consists of two hollow conical cavities 7-1 and 7-2, the design dimensions of which match the standard joints of the anesthesia and breathing apparatus, and the joint 7 is provided with a venting chamber 7-3, the venting chamber 7-3 may be axially parallel to the joint 7 or may form an angle with the axial direction.
  • the present invention is designed such that the venting chamber is axially parallel to the joint.
  • the circuit line 1 as shown in Fig. 1, has one end communicating with the venting chamber 3 of the upper cover 13, and the other end communicating with the venting chamber 7-3 of the joint 7.
  • the circuit pipeline 1 is made of a flexible polymer material, and the loop pipeline material of the present invention is designed as a polyvinyl chloride medical polymer material, and the diameter of the loop pipeline 1 is 1 mm to 4 mm, and the diameter of the tube of the present invention
  • the design is 3mm, the hardness of the pipe body is 60-90HA, and the hardness of the pipe body of the present invention is 80HA.
  • the above-mentioned welding or bonding fixing method is adopted to make the connection between the components more firm and airtight, thereby ensuring that the pressure indicator does not leak during use, and can accurately and stably indicate the pressure.
  • the pressure indicating zone 11 can increase the length of the pressure indicating zone to 20 mm to 30 mm without increasing the overall length of the pressure indicator, thereby facilitating the use of the pressure range. Observation.
  • the endotracheal tube check valve is connected between the interface 9 of the lower cover 12 and the sealing sleeve 10, thereby connecting the inside of the housing A with the endotracheal tube airbag into a cavity.
  • This type of connection is a direct insertion method, and the operation is simple and convenient.
  • the structure of the sealing sleeve 10 can firmly connect the interface 9 of the lower cover 12 and the one-way valve of the tracheal intubation, and is not easy to fall off, and has good sealing performance and no air leakage, thereby ensuring the use effect.
  • the syringe is connected to the air inlet 14 of the pressure indicator upper cover 13, and the pressure indicator is filled with gas by a syringe.
  • the gas passes through the air inlet 14, passes through the pressure indicator inside, and the interface 9 of the lower cover 12 enters the air tube insertion.
  • the check valve and the air bag are used to inflate the air bag intubation air bag.
  • One end of the joint 7 is connected to an oxygen supply device such as a ventilator, and the other end of the joint is connected with the air source connector of the tracheal intubation, so that the human lung cavity, the oxygen supply device and the circuit line 1 are connected into a cavity, when the patient inhales and When exhaling, the human lung cavity expands and contracts instantaneously, and the pressure of the tracheal intubation balloon decreases or increases.
  • the gas in the intermediate component of the pressure indicator and the gas in the tracheal intubation balloon will compensate each other. Thereby, the feedback adjusts the pressure of the tracheal intubation balloon during the oxygen supply process.
  • the pressure indicator of the invention has simple overall structure, small size, convenient use, convenient manufacture and low cost, and can be used together with a medical device such as an endotracheal tube with a balloon, a tracheal intubation tube, a laryngeal mask, etc., to implement monitoring,
  • a medical device such as an endotracheal tube with a balloon, a tracheal intubation tube, a laryngeal mask, etc.

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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)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

L'invention concerne un indicateur de pression dont la structure est constituée d'un boîtier (A) formé par un couvercle supérieur (13) et un couvercle inférieur (12) reliés, d'un ensemble intermédiaire (B) à l'intérieur du boîtier (A) formé par un couvercle d'étanchéité (4), un diaphragme souple sensible à la pression (6), un anneau de support (5) et une tige indicatrice (8), et d'un ensemble rétroaction (C) formé par un tube de retour (1) et un connecteur (7) formé à partir de deux cavités en forme de cône creux; sur le couvercle supérieur (13) sont situés une chambre de ventilation (3), une entrée d'air (14) et un clapet anti-retour (2), la bague de support (5) est suspendue à partir d'une paroi circonférentielle interne du couvercle d'étanchéité (4), une paroi externe du couvercle inférieur (12) comprend une zone d'indication de pression (11), une extrémité inférieure du couvercle inférieur (12) comprend une rainure ronde (12-2), une interface (9) est située au centre de la rainure ronde (12-2), un manchon d'étanchéité (10) est connecté sur la rainure ronde (12-2), une chambre de ventilation (7-3) est située sur le connecteur (7), une extrémité du tube de retour (1) est reliée à la chambre de ventilation (3) située au niveau du couvercle supérieur (13), et une autre extrémité de ce dernier est reliée à la chambre de ventilation (7-3) sur le connecteur (7). L'indicateur de pression de l'invention présente un modèle structurel global simple, est pratique à utiliser et présente de faibles coûts de production; ledit indicateur de pression peut être utilisé pour une détection de pression et un réglage de rétroaction dans des coussins d'air pour une intubation endotrachéale, une intubation de trachéostomie et des masques laryngés.
PCT/CN2017/072531 2016-12-14 2017-01-25 Indicateur de pression Ceased WO2018107567A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201621367759.4 2016-12-14
CN201621367759 2016-12-14

Publications (1)

Publication Number Publication Date
WO2018107567A1 true WO2018107567A1 (fr) 2018-06-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/072531 Ceased WO2018107567A1 (fr) 2016-12-14 2017-01-25 Indicateur de pression

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WO (1) WO2018107567A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111366292A (zh) * 2020-03-31 2020-07-03 山东省章丘鼓风机股份有限公司 一种渣浆型取压管
CN112326103A (zh) * 2020-10-23 2021-02-05 亳州联岐医疗科技有限公司 一种气腹机耗气量测量装置
CN113546265A (zh) * 2020-04-23 2021-10-26 上海交通大学医学院附属瑞金医院 一种气管切开套管矫正装置
CN114534049A (zh) * 2022-01-27 2022-05-27 深圳市普博医疗科技股份有限公司 一种压力缓冲气容以及气囊压力监控仪
CN117288586A (zh) * 2023-11-24 2023-12-26 万泰机电工业(昆山)有限公司 一种医用金属弯管抗压检测设备

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008023035A (ja) * 2006-07-20 2008-02-07 Advanex Inc カフ付医療具用インジケータ
CN201179260Y (zh) * 2008-04-15 2009-01-14 天津美迪斯医疗用品有限公司 气囊压力指示器
US20110220116A1 (en) * 2010-03-10 2011-09-15 Stephen Jay Lowenstein Inflation and monitoring assembly for a pressure cuff of an endotracheal tube
CN203587275U (zh) * 2013-11-14 2014-05-07 邹德伟 压力指示器
CN203881490U (zh) * 2013-11-14 2014-10-15 邹德伟 压力指示器
CN204479237U (zh) * 2015-03-10 2015-07-15 邹德伟 可调节球囊压力的压力指示器
CN204521890U (zh) * 2015-03-24 2015-08-05 刘海瑞 一种带套囊压力指示装置的气管导管
CN105181234A (zh) * 2015-09-15 2015-12-23 艾伯（天津）医疗制品科技有限公司 一种用于测量和指示喉罩、气管插管的指示装置
CN105363107A (zh) * 2014-08-08 2016-03-02 康尔福盛2200公司 气道适配器和吸气导管系统

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008023035A (ja) * 2006-07-20 2008-02-07 Advanex Inc カフ付医療具用インジケータ
CN201179260Y (zh) * 2008-04-15 2009-01-14 天津美迪斯医疗用品有限公司 气囊压力指示器
US20110220116A1 (en) * 2010-03-10 2011-09-15 Stephen Jay Lowenstein Inflation and monitoring assembly for a pressure cuff of an endotracheal tube
CN203587275U (zh) * 2013-11-14 2014-05-07 邹德伟 压力指示器
CN203881490U (zh) * 2013-11-14 2014-10-15 邹德伟 压力指示器
CN105363107A (zh) * 2014-08-08 2016-03-02 康尔福盛2200公司 气道适配器和吸气导管系统
CN204479237U (zh) * 2015-03-10 2015-07-15 邹德伟 可调节球囊压力的压力指示器
CN204521890U (zh) * 2015-03-24 2015-08-05 刘海瑞 一种带套囊压力指示装置的气管导管
CN105181234A (zh) * 2015-09-15 2015-12-23 艾伯（天津）医疗制品科技有限公司 一种用于测量和指示喉罩、气管插管的指示装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111366292A (zh) * 2020-03-31 2020-07-03 山东省章丘鼓风机股份有限公司 一种渣浆型取压管
CN113546265A (zh) * 2020-04-23 2021-10-26 上海交通大学医学院附属瑞金医院 一种气管切开套管矫正装置
CN112326103A (zh) * 2020-10-23 2021-02-05 亳州联岐医疗科技有限公司 一种气腹机耗气量测量装置
CN112326103B (zh) * 2020-10-23 2021-11-23 亳州联岐医疗科技有限公司 一种气腹机耗气量测量装置
CN114534049A (zh) * 2022-01-27 2022-05-27 深圳市普博医疗科技股份有限公司 一种压力缓冲气容以及气囊压力监控仪
CN117288586A (zh) * 2023-11-24 2023-12-26 万泰机电工业(昆山)有限公司 一种医用金属弯管抗压检测设备
CN117288586B (zh) * 2023-11-24 2024-03-08 万泰机电工业(昆山)有限公司 一种医用金属弯管抗压检测设备

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