WO2022199128A1 - 无滞后供氧呼吸机系统 - Google Patents

无滞后供氧呼吸机系统 Download PDF

Info

Publication number
WO2022199128A1
WO2022199128A1 PCT/CN2021/136371 CN2021136371W WO2022199128A1 WO 2022199128 A1 WO2022199128 A1 WO 2022199128A1 CN 2021136371 W CN2021136371 W CN 2021136371W WO 2022199128 A1 WO2022199128 A1 WO 2022199128A1
Authority
WO
WIPO (PCT)
Prior art keywords
oxygen supply
pipe
auxiliary
auxiliary oxygen
exhalation
Prior art date
Application number
PCT/CN2021/136371
Other languages
English (en)
French (fr)
Inventor
刘哲
周磊
唐聪能
郑其昌
粟锦平
袁再鑫
Original Assignee
湖南万脉医疗科技有限公司
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 湖南万脉医疗科技有限公司 filed Critical 湖南万脉医疗科技有限公司
Priority to US17/670,552 priority Critical patent/US20220305230A1/en
Publication of WO2022199128A1 publication Critical patent/WO2022199128A1/zh

Links

Images

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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes operated by electrical means
    • A61M16/022—Control means therefor
    • 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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
    • 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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1075—Preparation of respiratory gases or vapours by influencing the temperature
    • A61M16/108—Preparation of respiratory gases or vapours by influencing the temperature before being humidified or mixed with a beneficial agent

Definitions

  • the invention relates to the technical field of ventilators, in particular to a no-lag oxygen supply ventilator system.
  • a ventilator is a device that can replace, control or change human normal physiological breathing, increase lung ventilation, improve respiratory function, reduce respiratory work consumption, and save heart reserve capacity.
  • the assisted breathing When the assisted breathing is triggered by airflow, it can keep the ventilator working in synchronization with the patient's inhalation, so as to facilitate the evacuation of the ventilator.
  • the ventilator can be synchronized about 20ms later. This forms a lag in breathing oxygen supply. The faster the patient's breathing rate, the longer the lag time of the ventilator, the more breathing work the patient does, and the poorer the breathing experience.
  • the purpose of the present invention is to solve the problem of the lag in the oxygen supply of the ventilator in the prior art, and propose a non-lag oxygen supply ventilator system for improving the oxygen supply lag phenomenon of the ventilator.
  • a no-lag oxygen supply ventilator system including a breathing mask, an inhalation tube, an expiratory tube, an oxygen supply chamber, an auxiliary oxygen supply pipeline, and a start-stop cylinder for opening and closing the auxiliary oxygen supply pipeline, the breathing mask and the oxygen supply chamber They are respectively connected through an inhalation pipe and an auxiliary oxygen supply pipe, and the oxygen supply chamber is used to provide oxygen gas with suitable oxygen content.
  • the mask communicates with the outside world through the expiratory tube.
  • An inhalation airflow sensor is arranged inside the breathing mask, and an electronically controlled inhalation valve is arranged on the inhalation pipe. When the user inhales is sensed, the inhalation valve opens, the user inhales through the inhalation pipe, and the user inhales. Exhalation is performed through an expiratory tube, and a one-way valve is arranged on the expiratory tube to prevent the airflow of the expiratory tube from flowing in the opposite direction.
  • auxiliary oxygen supply pipe and the exhalation pipe pass through the start-stop cylinder.
  • the auxiliary oxygen supply pipe is helically wound on the outside of the expiratory pipe, a branch pipe is arranged between the exhalation pipe and the auxiliary oxygen supply pipe, and one end of the branch pipe is communicated with the expiratory pipe.
  • the other end of the branch pipe is sealed, and the inside of the branch pipe is provided with a piston and one end of a connecting rod, and the connecting rod protrudes from the sealed end of the branch pipe.
  • a slideway, a support seat and a pressing block are arranged inside the start-stop cylinder, the spiral part of the auxiliary oxygen supply pipeline is located between the support base and the pressure block, and the slideway and the support base are fixedly connected to the start-stop cylinder.
  • the pressure block is fixedly connected to one end of the connecting rod outside the branch pipe, and the pressure block is slidably connected to the start-stop cylinder through the slideway.
  • the pressing block is close to the direction of the support base, which can squeeze the helical part of the helical part of the auxiliary oxygen supply pipe and cut off the flow of the helical part of the auxiliary oxygen supply pipe.
  • the auxiliary oxygen supply pipeline inside the start-stop cylinder is a thin-walled hose.
  • the wall thickness of the auxiliary oxygen supply pipeline can meet the pressure of the pressure block, and the tube wall can be attached to the support seat to realize the interception and avoid the oxygen flow of the auxiliary oxygen supply pipeline. influence of air.
  • the auxiliary oxygen supply pipeline is provided with an arc-shaped elastic support rod and an elastic isolation block inside the pipeline between the support base and the pressing block.
  • the isolation block is located in the middle of the auxiliary oxygen supply pipeline, and the two elastic support rods are symmetrically distributed on both sides of the isolation block.
  • the block is pressed between the pressure block and the support seat, and when there is a gap between the spacer block and the pressure block and the support seat, the auxiliary oxygen supply pipeline is blocked.
  • the elastic support rod and the spacer can rebound to support the auxiliary oxygen supply pipeline, maintain the normal circulation of the auxiliary oxygen supply pipeline, and reduce the deformation or damage of the auxiliary oxygen supply pipeline caused by pressing.
  • the material of the elastic support rod is a metal that energizes and generates heat, and both ends of the elastic support rod are connected to lead wires for power supply.
  • the elastic support rod is electrified and heated, which can heat the gas in the auxiliary oxygen supply pipeline to improve the use experience.
  • the elastic support rod is located on the side of the isolation block as a whole, so as to avoid the elastic support rod being directly squeezed by the pressing block and the support seat, and avoid the elastic support rod being damaged by extrusion.
  • a start-stop valve and a driving fan are arranged on the branch pipe, and the start-stop valve is located between the piston and the driving fan.
  • the start-stop valve includes a flow seat, a slip ring, a cover plate, a return spring, a flow slider and an exhaust pipe.
  • the flow seat and the slip ring are fixed on the inner wall of the branch pipe, and the flow slider passes through the rod and the cover plate.
  • the cover plate is located between the flow seat and the slip ring, a return spring is arranged between the cover plate and the slip ring, the flow slider is located inside the slip ring and is slidingly and sealedly connected to the slip ring, the A flow hole is set on the flow slider, and the exhaust pipe is located on the side (left side) of the slip ring close to the piston.
  • an air flow sensor is arranged inside the exhalation pipe.
  • the driving fan is driven to rotate.
  • the rotation of the driving fan can not only speed up the flow of the air flow of the exhalation pipe, but at the same time, the outlet end of the driving fan is aligned with the circulation seat, and the air flow generated by the driving fan can blow the cover plate, so that a gap is formed between the cover plate and the circulation seat, and at the same time, the The side of the flow slider covers the exhaust pipe, and the airflow blows through the gap and pushes the piston to move through the flow hole of the flow slider, so that the pressing block moves closer to the support seat.
  • the auxiliary oxygen supply pipeline When the piston reaches the limit position, the auxiliary oxygen supply pipeline is blocked.
  • the exhaust pipe When the flow is cut off, the exhaust pipe is located on the right side of the flow slider and is opened, and the wind at the outlet end of the driving fan goes out from the exhaust pipe. When the exhalation weakens, the driving fan stops working. Driven by the return spring, the cover plate and the circulation slider return to their original positions.
  • the exhaust pipe is located on the left side of the circulation slider and is opened. Pushed by the support and the spacer block, the pressing block and the piston return, the auxiliary oxygen supply pipeline is turned on, and the auxiliary oxygen supply pipeline supplies oxygen to the breathing mask.
  • the gas between the piston and the cover plate discharged from the exhaust pipe.
  • a pressure reducing valve is arranged on the auxiliary oxygen supply pipeline to reduce the flow rate of oxygen in the auxiliary oxygen supply pipeline, so as to avoid oxygen poisoning caused by excessive oxygen supply.
  • This non-lag oxygen supply ventilator system provides a small amount of oxygen in the second half of exhalation by setting an auxiliary oxygen supply pipeline to make up for the amount of oxygen required by the user during the lag time of the inspiratory flow of the ventilator. , to avoid the situation that the user should be struggling to inhale due to the lag of inhalation and oxygen supply, and give the user a better breathing experience.
  • This non-lag oxygen supply ventilator system controls the start and stop of the auxiliary oxygen supply pipeline through the airflow of the expiratory tube.
  • the control is simple and convenient. It can speed up the exhaust rate of the exhalation pipeline and provide a low-pressure exhalation environment for the user to exhale. Exhale more easily.
  • the auxiliary oxygen supply pipeline of this non-lag oxygen supply ventilator system is provided with elastic supports and isolation blocks for return, so that the auxiliary oxygen supply pipeline can quickly resume circulation when it is blocked, and at the same time, the gas in the auxiliary oxygen supply pipeline can be adjusted. Apply heat to make breathing more comfortable.
  • Figure 1 is a system connection diagram of the no-lag oxygen supply ventilator system
  • Figure 2 is a schematic structural diagram of the start-stop cylinder of the no-lag oxygen supply ventilator system
  • Figure 3 is a radial cross-sectional view of the start-stop cylinder of the no-lag oxygen supply ventilator system
  • Figure 4 is an enlarged view of the radial section A of the start-stop cylinder of the non-hysteretic oxygen supply ventilator system
  • Figure 5 is a schematic structural diagram of the auxiliary oxygen supply pipeline of the no-lag oxygen supply ventilator system
  • Fig. 6 is the schematic diagram of ventilator breathing airflow in the prior art
  • FIG. 7 is a schematic diagram of the respiratory airflow of the non-lag oxygen supply ventilator system.
  • the non-hysteretic oxygen supply ventilator system includes a breathing mask 1, an inhalation tube 2, an expiratory tube 3, an oxygen supply chamber 4, an auxiliary oxygen supply pipeline 23 and a start-stop for opening and closing the auxiliary oxygen supply pipeline 23 Cylinder 5, the breathing mask 1 and the oxygen supply chamber 4 are respectively connected through the inhalation pipe 2 and the auxiliary oxygen supply pipeline 23, the oxygen supply chamber 4 is used to provide oxygen gas with suitable oxygen content, and the expiratory pipe 3 One end is connected to the respiratory mask 1, the other end of the exhalation pipe 3 is connected to the trachea 32, and the respiratory mask 1 is communicated with the outside world through the exhalation pipe 3.
  • An inhalation airflow sensor is arranged inside the breathing mask 1, and an electronically controlled inhalation valve 21 is arranged on the inhalation pipe 2.
  • the inhalation valve 21 When the user inhales is sensed, the inhalation valve 21 is opened, and the user conducts the operation through the inhalation pipe 2.
  • the user When inhaling, the user exhales through the exhalation pipe 3 , and a one-way valve 31 is arranged on the exhalation pipe 3 to prevent the airflow of the exhalation pipe 3 from flowing in the opposite direction.
  • auxiliary oxygen supply pipe 23 and the exhalation pipe 3 pass through the start-stop cylinder 5 . 2, 3 and 4, inside the start-stop cylinder 5, the auxiliary oxygen supply pipeline 23 is spirally wound on the outside of the expiratory tube 3, and the exhalation tube 3 and the auxiliary oxygen supply pipeline 23 are arranged between
  • the branch pipe 6, one end of the branch pipe 6 is communicated with the exhalation pipe 3, the other end of the branch pipe 6 is sealed and arranged, and the inside of the branch pipe 6 is provided with a piston 61 and one end of a connecting rod 62, and the connecting rod 62 is connected from the branch pipe 6.
  • the sealed end protrudes.
  • a slideway 51, a support seat 52 and a pressure block 53 are arranged inside the start-stop cylinder 5, and the spiral portion of the auxiliary oxygen supply pipeline 23 is located between the support seat 52 and the pressure block 53, and the slideway 51 and the pressure block 53 are arranged.
  • the support base 52 is fixedly connected to the inner wall of the start-stop cylinder 5
  • the pressure block 53 is fixedly connected to one end of the connecting rod 62 outside the branch pipe 6
  • the pressure block 53 is slidably connected to the start-stop cylinder 5 through the slideway 51 .
  • the pressing block 53 is close to the direction of the support base 52 , which can squeeze the helical portion of the helical portion of the auxiliary oxygen supply pipe 23 and block the flow of the helical portion of the auxiliary oxygen supply pipe 23 .
  • the auxiliary oxygen supply pipeline 23 inside the start-stop cylinder 5 is a thin-walled hose, and the wall thickness of the auxiliary oxygen supply pipeline 23 satisfies the pressure of the pressure block 53, so that the pipe wall can be attached to the support seat 52 to realize the interception and avoid the auxiliary oxygen supply pipeline. 23 The effect of oxygen flow on exhalation.
  • the auxiliary oxygen supply pipeline 23 is provided with an arc-shaped elastic support rod 231 and an elastic isolation block 233 inside the pipeline between the support base 52 and the pressing block 53 .
  • the isolation block 233 is located in the middle of the auxiliary oxygen supply pipeline 23 , and the two elastic support rods 231 are symmetrically distributed on both sides of the isolation block 233 .
  • the spacer block 233 is elongated, and the spacer block 233 is pressed between the pressing block 53 and the support seat 52. When there is a gap between the spacer block 233 and the pressing block 53 and the support seat 52, the auxiliary oxygen supply pipeline 23 is blocked.
  • the elastic support rod 231 and the spacer block 233 can rebound, support the auxiliary oxygen supply pipeline 23, maintain the normal circulation of the auxiliary oxygen supply pipeline 23, and reduce the deformation of the auxiliary oxygen supply pipeline 23 caused by pressing. or damaged.
  • the material of the elastic support rod 231 is a metal that energizes and generates heat, and both ends of the elastic support rod 231 are connected to lead wires 232 for power supply.
  • the elastic support rod 231 is electrified to generate heat, which can heat the gas in the auxiliary oxygen supply pipeline 23 to improve the use experience.
  • the elastic support rod 231 is located on the side of the isolation block 233 as a whole to prevent the elastic support rod 231 from being directly squeezed by the pressing block 53 and the support seat 52, and avoid the elastic support rod 231 from being damaged by extrusion.
  • a start-stop valve 7 and a driving fan 8 are arranged on the branch pipe 6 , and the start-stop valve 7 is located between the piston 61 and the driving fan 8 .
  • the start-stop valve 7 includes a flow seat 71 , a slip ring 72 , a cover plate 73 , a return spring 74 , a flow slider 75 and an exhaust pipe 76 , and the flow seat 71 and the slip ring 72 are fixed on the inner wall of the branch pipe 6 .
  • the flow slider 75 is fixedly connected to the cover plate 73 through the rod, the cover plate 73 is located between the flow seat 71 and the slip ring 72, and a return spring 74 is arranged between the cover plate 73 and the slip ring 72, and the
  • the circulation slider 75 is located inside the slip ring 72 and is slidably and sealedly connected to the slip ring 72.
  • the circulation slider 75 is provided with a circulation hole, and the exhaust pipe 76 is located on the side (left side) of the slip ring 72 close to the piston 61. .
  • an air flow sensor is arranged inside the exhalation pipe 3.
  • the driving fan 8 is driven to rotate.
  • the rotation of the driving fan 8 can not only speed up the flow of the air flow of the exhalation pipe 3, but also the air outlet end of the driving fan 8 is aligned with the flow seat 71, and the air flow generated by the driving fan 8 can blow the cover plate 73, so that the cover plate 73 and the
  • the circulation seat 71 creates a gap, and at the same time, the side of the circulation slider 75 covers the exhaust pipe 76, and the airflow blows through the gap and passes through the circulation hole of the circulation slider 75 to push the piston 62 to move, so as to realize the direction of the pressure block 53 to the support seat 52.
  • the auxiliary oxygen supply pipeline 23 is provided with a pressure reducing valve 22 for reducing the flow rate of oxygen in the auxiliary oxygen supply pipeline 23 to avoid oxygen poisoning caused by excessive oxygen supply.
  • Step 1 The user puts on the breathing mask 1, the user inhales, the inspiratory flow sensor inside the breathing mask 1 senses the inspiratory flow, the electronically controlled inhalation valve 21 on the inhalation pipe 2 is opened, and the user breathes through the air.
  • the inspiratory flow sensor inside the breathing mask 1 senses the inspiratory flow
  • the electronically controlled inhalation valve 21 on the inhalation pipe 2 is opened, and the user breathes through the air.
  • Step 2 After the inhalation is completed, the user exhales, and the gas exhaled by the user is discharged from the exhalation pipe 3.
  • the controller drives the fan 8 to be driven to rotate;
  • the rotation of the driving fan 8 can speed up the flow of the air flow of the exhalation pipe 3, and provide the user with a low-pressure pipe environment required for exhalation, so that the exhalation is smoother;
  • the air flow generated by the fan 8 can blow the cover plate 73, so that a gap is formed between the cover plate 73 and the circulation seat 71, and at the same time, the side of the circulation slider 75 covers the exhaust pipe 76.
  • the flow hole pushes the piston 62 to move, so that the pressing block 53 approaches the support seat 52.
  • the auxiliary oxygen supply pipeline 23 is blocked and enters a pure exhalation state.
  • the right side of the block 75 is opened, and the wind at the outlet end of the driving fan 8 goes out from the exhaust pipe 76;
  • Step 3 When the exhalation weakens, the airflow sensor senses the weakened exhaled airflow, and the controller drives the fan 8 to stop working. Driven by the return spring 74, the cover plate 73 and the circulation slider 75 return to their original positions, and the exhaust pipe 76 Located on the left side of the flow slider 75 and opened, the pressure block 53 and the piston 62 are returned to the position of the pressure block 53 and the piston 62 under the push of the air flow inside the auxiliary oxygen supply pipeline 23, the elastic support 231 and the isolation block 233, and the auxiliary oxygen supply pipeline 23 is turned on , the auxiliary oxygen supply pipeline 23 supplies oxygen to the breathing mask 1 , and this oxygen supply action is located before the user inhales, which is used to make oxygen present in the breathing mask 1 in advance, and is used to compensate the lag opening of the inhalation valve 21 .
  • Step 4 After exhalation is completed, the user inhales, the inhalation airflow sensor inside the respiratory mask 1 senses the inspiratory airflow, the electronically controlled inhalation valve 21 on the inhalation pipe 2 is opened, and the user conducts the operation through the inhalation pipe 2. Inhale.
  • the figure shows the breathing airflow process of the ventilator in the prior art, wherein to corresponds to the oxygen supply lag time, and within the to time, the user is in an inhalation state, but the machine cannot supply oxygen normally.
  • Fig. 7 the figure shows the breathing airflow process of the oxygen supply ventilator system without lag.
  • the auxiliary oxygen supply pipeline 23 starts to supply oxygen, and the oxygen supply M of the auxiliary oxygen supply pipeline 23 is not less than The hypoxia amount G corresponding to the oxygen supply lag time to realizes sufficient oxygen compensation, improves the difficulty of inhalation, and can give the user a better breathing experience.

Landscapes

  • 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)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

一种无滞后供氧呼吸机系统，包括呼吸面罩(1)、吸气管(2)、呼气管(3)、供氧室(4)、辅助供氧管道(23)和用于开闭辅助供氧管道(23)的启停筒(5)，呼吸面罩(1)和供氧室(4)之间分别通过吸气管(2)和辅助供氧管道(23)连通，呼吸面罩(1)通过呼气管(3)与外界连通，该无滞后供氧呼吸机系统通过设置辅助供氧管道(23)，在呼气后半阶段就进行小量供氧，用于弥补呼吸机在感应吸气气流滞后时间内使用者所需的氧气量，避免使用者因吸气供氧的滞后而形成吸气吃力的情况，给予使用者更佳的呼吸体验，通过呼气管(3)的气流控制辅助供氧管道(23)的启停，控制简单方便，呼气更顺畅，辅助供氧管道(23)提供氧气的温度可调，呼吸也更舒适。

Description

无滞后供氧呼吸机系统 技术领域
本发明涉及呼吸机技术领域，尤其涉及一种无滞后供氧呼吸机系统。
背景技术
呼吸机是一种能代替、控制或改变人的正常生理呼吸，增加肺通气量，改善呼吸功能，减轻呼吸功消耗，节约心脏储备能力的装置。
辅助呼吸使用气流触发时，能保持呼吸机工作与病人吸气同步，以利撤离呼吸机，但是，由于气流检测同步装置的限制，病人开始吸气时，呼吸机要迟20ms左右才能同步，由此形成呼吸供氧的滞后，病人呼吸频率越快，呼吸机滞后时间越长，病人呼吸作功越多，呼吸体验较差。
发明内容
本发明的目的是为了解决现有技术中呼吸机供氧滞后的问题，而提出的一种无滞后供氧呼吸机系统，用于改善呼吸机供氧滞后现象。
为了实现上述目的，本发明采用了如下技术方案：
无滞后供氧呼吸机系统，包括呼吸面罩、吸气管、呼气管、供氧室、辅助供氧管道和用于开闭辅助供氧管道的启停筒，所述呼吸面罩和供氧室之间分别通过吸气管和辅助供氧管道连通，供氧室用于提供含氧量合适的氧气气体，所述呼气管的一端连接呼吸面罩，呼气管的另一端连接出气管，呼吸面罩通过呼气管与外界连通。所述呼吸面罩的内部设置吸气气流感应器，所述吸气管上设置电控吸气阀，当感应 使用者吸气，吸气阀打开，使用者通过吸气管进行吸气，使用者通过呼气管进行呼气，所述呼气管上设置单向阀，防止呼气管的气流逆向流动。
进一步的，所述辅助供氧管道和呼气管从启停筒中穿过。在启停筒的内部，所述辅助供氧管道螺旋缠绕于呼气管的外部，所述呼气管与辅助供氧管道之间设置支流管，支流管的一端与呼气管连通，支流管的另一端密封设置，所述支流管内部设置活塞和连接杆的一端，所述连接杆从支流管的密封端伸出。
进一步的，所述启停筒内部设置滑道、支撑座和压块，所述辅助供氧管道的螺旋部位于支撑座和压块之间，所述滑道和支撑座固定连接启停筒的内壁，所述压块固定连接连接杆位于支流管外部的一端，所述压块通过滑道与启停筒滑动连接。上述结构中，压块往支撑座的方向靠近，可对辅助供氧管道的螺旋部的螺旋部进行挤压，对辅助供氧管道的螺旋部进行截流。启停筒内部的辅助供氧管道为薄壁软管，辅助供氧管道的壁厚满足压块的压力可将管壁至贴合支撑座，实现截流，避免辅助供氧管道的氧气气流对呼气的影响。
优选的，所述辅助供氧管道于支撑座和压块之间的管道内部设置弧形的弹性支撑杆和具有弹性的隔离块。所述隔离块位于辅助供氧管道的中部，两个所述弹性支撑杆对称分布于隔离块的两侧，当压块压向支撑座，在弹性支撑杆的辅助下隔离块被拉长，隔离块被压在压块和支撑座之间，当隔离块与压块和支撑座之间为间隙时，辅助供氧管道被截流。当压块离开支撑座，弹性支撑杆和隔离块可回弹，对辅助 供氧管道进行支撑，保持辅助供氧管道的正常流通，减少由于压制形成辅助供氧管道变形或者破损。
优选的，所述弹性支撑杆的材料为通电发热的金属，弹性支撑杆的两端连接用于通电的引线。弹性支撑杆通电发热可对辅助供氧管道中的气体进行加热，提升使用体验。当辅助供氧管道被截流时，弹性支撑杆整体位于隔离块的侧面，避免弹性支撑杆被压块和支撑座直接挤压，避免弹性支撑杆因挤压受损。
进一步的，所述支流管上设置启停阀和驱动风扇，启停阀位于活塞与驱动风扇之间。所述启停阀包括流通座、滑环、盖板、回位弹簧、流通滑块和排气管，所述流通座和滑环固定位于支流管的内壁，流通滑块通过杆件与盖板固定连接，所述盖板位于流通座和滑环之间，所述盖板与滑环之间设置回位弹簧，所述流通滑块位于滑环的内部且与滑环滑动密封连接，所述流通滑块上开设流通孔，所述排气管位于滑环靠近活塞的一侧(左侧)。
本发明中的呼气管的内部设置气流感应器，当呼气管中的气流感应器感应到呼出气流，驱动风扇被驱动旋转。驱动风扇的旋转不仅可以加快呼气管呼气的气流流动，同时驱动风扇的出风端对准流通座，驱动风扇产生的气流可以吹动盖板，使盖板与流通座产生缝隙，同时使流通滑块得侧面盖住排气管，气流经过缝隙吹、穿过流通滑块的流通孔推动活塞移动，实现压块往支撑座的方向靠近动作，当活塞到达极限位置，辅助供氧管道被截流，此时排气管位于流通滑块的右侧且被打开，驱动风扇出风端的风从排气管出去。当呼气减弱，驱动风扇 停止工作，在回位弹簧的带动下，盖板、流通滑块回位，排气管位于流通滑块的左侧且被打开，在辅助供氧管道内部气流、弹性支撑件和隔离块的推动下，压块和活塞回位，辅助供氧管道被导通，辅助供氧管道向呼吸面罩中供氧，在活塞回位过程中，活塞与盖板之间的气体从排气管排出。
所述辅助供氧管道上设置减压阀，用于降低辅助供氧管道中氧气的流速，避免供氧过多引起氧气中毒。
本发明的有益效果是：
1、本无滞后供氧呼吸机系统通过设置辅助供氧管道，在呼气后半阶段就进行小量供氧，用于弥补呼吸机在感应吸气气流滞后时间内使用者所需的氧气量，避免使用者应为吸气供氧的滞后而形成吸气吃力的情况，给予使用者更佳的呼吸体验。
2、本无滞后供氧呼吸机系统通过呼气管的气流控制辅助供氧管道的启停，控制简单方便，其可加快呼气管道的排气速率，为使用者呼气提供低压呼出环境，呼气更顺畅。
3、本无滞后供氧呼吸机系统的辅助供氧管道内部设置用于回位的弹性支撑件和隔离块，使辅助供氧管道在被截流快速恢复流通，同时可对辅助供氧管道中气体进行加热，使呼吸更舒适。
附图说明
图1为本无滞后供氧呼吸机系统的系统连接图；
图2为本无滞后供氧呼吸机系统启停筒处的结构示意图；
图3为本无滞后供氧呼吸机系统启停筒的径向截面图；
图4为本无滞后供氧呼吸机系统启停筒的径向截面A处的放大图；
图5为本无滞后供氧呼吸机系统辅助供氧管道处的结构示意图；
图6为现有技术中呼吸机呼吸气流示意图；
图7为本无滞后供氧呼吸机系统呼吸气流示意图。
图中：1、呼吸面罩；2、吸气管；3、呼气管；4、供氧室；5、启停筒；6、支流管；7、启停阀；8、驱动风扇；21、吸气阀；22、减压阀；23、辅助供氧管道；31、单向阀；32、出气管；51、滑道；52、支撑座；53、压块；61、活塞；62、连接杆；71、流通座；72、滑环；73、盖板；74、回位弹簧；75、流通滑块；76、排气管；231、弹性支撑杆；232、引线；233、隔离块。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。
参照图1，无滞后供氧呼吸机系统，包括呼吸面罩1、吸气管2、呼气管3、供氧室4、辅助供氧管道23和用于开闭辅助供氧管道23的启停筒5，所述呼吸面罩1和供氧室4之间分别通过吸气管2和辅助供氧管道23连通，供氧室4用于提供含氧量合适的氧气气体，所述呼气管3的一端连接呼吸面罩1，呼气管3的另一端连接出气管32，呼吸面罩1通过呼气管3与外界连通。所述呼吸面罩1的内部设置吸气气流感应器，所述吸气管2上设置电控吸气阀21，当感应使用者 吸气，吸气阀21打开，使用者通过吸气管2进行吸气，使用者通过呼气管3进行呼气，所述呼气管3上设置单向阀31，防止呼气管3的气流逆向流动。
进一步的，所述辅助供氧管道23和呼气管3从启停筒5中穿过。参考图2、图3个图4，在启停筒5的内部，所述辅助供氧管道23螺旋缠绕于呼气管3的外部，所述呼气管3与辅助供氧管道23之间设置支流管6，支流管6的一端与呼气管3连通，支流管6的另一端密封设置，所述支流管6内部设置活塞61和连接杆62的一端，所述连接杆62从支流管6的密封端伸出。
进一步的，所述启停筒5内部设置滑道51、支撑座52和压块53，所述辅助供氧管道23的螺旋部位于支撑座52和压块53之间，所述滑道51和支撑座52固定连接启停筒5的内壁，所述压块53固定连接连接杆62位于支流管6外部的一端，所述压块53通过滑道51与启停筒5滑动连接。上述结构中，压块53往支撑座52的方向靠近，可对辅助供氧管道23的螺旋部的螺旋部进行挤压，对辅助供氧管道23的螺旋部进行截流。启停筒5内部的辅助供氧管道23为薄壁软管，辅助供氧管道23的壁厚满足压块53的压力可将管壁至贴合支撑座52，实现截流，避免辅助供氧管道23的氧气气流对呼气的影响。
本实施例中，参考图5，所述辅助供氧管道23于支撑座52和压块53之间的管道内部设置弧形的弹性支撑杆231和具有弹性的隔离块233。所述隔离块233位于辅助供氧管道23的中部，两个所述弹性支撑杆231对称分布于隔离块233的两侧，当压块53压向支撑座 52，在弹性支撑杆231的辅助下隔离块233被拉长，隔离块233被压在压块53和支撑座52之间，当隔离块233与压块53和支撑座52之间为间隙时，辅助供氧管道23被截流。当压块53离开支撑座52，弹性支撑杆231和隔离块233可回弹，对辅助供氧管道23进行支撑，保持辅助供氧管道23的正常流通，减少由于压制形成辅助供氧管道23变形或者破损。
进一步的，所述弹性支撑杆231的材料为通电发热的金属，弹性支撑杆231的两端连接用于通电的引线232。弹性支撑杆231通电发热可对辅助供氧管道23中的气体进行加热，提升使用体验。当辅助供氧管道23被截流时，弹性支撑杆231整体位于隔离块233的侧面，避免弹性支撑杆231被压块53和支撑座52直接挤压，避免弹性支撑杆231因挤压受损。
进一步的，所述支流管6上设置启停阀7和驱动风扇8，启停阀7位于活塞61与驱动风扇8之间。所述启停阀7包括流通座71、滑环72、盖板73、回位弹簧74、流通滑块75和排气管76，所述流通座71和滑环72固定位于支流管6的内壁，流通滑块75通过杆件与盖板73固定连接，所述盖板73位于流通座71和滑环72之间，所述盖板73与滑环72之间设置回位弹簧74，所述流通滑块75位于滑环72的内部且与滑环72滑动密封连接，所述流通滑块75上开设流通孔，所述排气管76位于滑环72靠近活塞61的一侧(左侧)。
本实施例中的呼气管3的内部设置气流感应器，当呼气管3中的气流感应器感应到呼出气流，驱动风扇8被驱动旋转。驱动风扇8的 旋转不仅可以加快呼气管3呼气的气流流动，同时驱动风扇8的出风端对准流通座71，驱动风扇8产生的气流可以吹动盖板73，使盖板73与流通座71产生缝隙，同时使流通滑块75得侧面盖住排气管76，气流经过缝隙吹、穿过流通滑块75的流通孔推动活塞62移动，实现压块53往支撑座52的方向靠近动作，当活塞62到达极限位置，辅助供氧管道23被截流，此时排气管76位于流通滑块75的右侧且被打开，驱动风扇8出风端的风从排气管76出去。当呼气减弱，驱动风扇8停止工作，在回位弹簧74的带动下，盖板73、流通滑块75回位，排气管76位于流通滑块75的左侧且被打开，在辅助供氧管道23内部气流、弹性支撑件231和隔离块233的推动下，压块53和活塞62回位，辅助供氧管道23被导通，辅助供氧管道23向呼吸面罩1中供氧，在活塞62回位过程中，活塞62与盖板73之间的气体从排气管76排出。
所述辅助供氧管道23上设置减压阀22，用于降低辅助供氧管道23中氧气的流速，避免供氧过多引起氧气中毒。
本实施例中的补偿式呼吸机的工作过程如下：
步骤一：使用者带上呼吸面罩1，使用者吸气，呼吸面罩1内部的吸气气流感应器感应到吸气气流，吸气管2上的电控吸气阀21打开，使用者通过吸气管2进行吸气；
步骤二：吸气完毕，使用者呼气，使用者呼出的气体从呼气管3排出，当呼气管3中的气流感应器感应到呼出气流，控制器驱动风扇8被驱动旋转；
驱动风扇8的旋转可加快呼气管3呼气的气流流动，给予使用者呼气所需的低压管道环境，使呼气更顺畅；同时驱动风扇8的出风端对准流通座71，驱动风扇8产生的气流可以吹动盖板73，使盖板73与流通座71产生缝隙，同时使流通滑块75得侧面盖住排气管76，气流经过缝隙吹、穿过流通滑块75的流通孔推动活塞62移动，实现压块53往支撑座52的方向靠近动作，当活塞62到达极限位置，辅助供氧管道23被截流，进入纯呼气状态，此时排气管76位于流通滑块75的右侧且被打开，驱动风扇8出风端的风从排气管76出去；
步骤三：当呼气减弱，气流感应器感应到减弱后的呼出气流，控制器驱动风扇8停止工作在回位弹簧74的带动下，盖板73、流通滑块75回位，排气管76位于流通滑块75的左侧且被打开，在辅助供氧管道23内部气流、弹性支撑件231和隔离块233的推动下，压块53和活塞62回位，辅助供氧管道23被导通，辅助供氧管道23向呼吸面罩1中供氧，此供氧动作位于使用者吸气之前，用于使呼吸面罩1内部提前存在氧气，用于补偿吸气阀21的滞后打开。
步骤四：呼气完毕，使用者吸气，呼吸面罩1内部的吸气气流感应器感应到吸气气流，吸气管2上的电控吸气阀21打开，使用者通过吸气管2进行吸气。
参考图6，图中为现有技术中呼吸机呼吸气流过程，其中to对应的为供氧滞后时间，to时间内，使用者实质为吸气状态，但是机器却无法正常供氧。参考图7，图中为本无滞后供氧呼吸机系统呼吸气流过程，在呼气阶段的后半段，辅助供氧管道23开始供氧，其中 辅助供氧管道23的供氧量M不小于供氧滞后时间to对应的缺氧量G，实现氧气的足量弥补，改善吸气吃力的情况，可给予使用者更佳的呼吸体验。
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，根据本发明的技术方案及其发明构思加以等同替换或改变，都应涵盖在本发明的保护范围之内。

Claims (6)

  1. 无滞后供氧呼吸机系统，其特征在于，包括呼吸面罩(1)、吸气管(2)、呼气管(3)、供氧室(4)、辅助供氧管道(23)和用于开闭辅助供氧管道(23)的启停筒(5)，所述呼吸面罩(1)和供氧室(4)之间分别通过吸气管(2)和辅助供氧管道(23)连通，所述呼吸面罩(1)通过呼气管(3)与外界连通，所述辅助供氧管道(23)和呼气管(3)从启停筒(5)中穿过；
    所述辅助供氧管道(23)螺旋缠绕于呼气管(3)的外部，所述呼气管(3)与辅助供氧管道(23)之间设置支流管(6)，所述支流管(6)内部设置活塞(61)和连接杆(62)的一端，所述连接杆(62)从支流管(6)伸出；
    所述启停筒(5)内部设置滑道(51)、支撑座(52)和压块(53)，所述辅助供氧管道(23)的螺旋部位于支撑座(52)和压块(53)之间，所述滑道(51)和支撑座(52)固定连接启停筒(5)的内壁，所述压块(53)固定连接连接杆(62)位于支流管(6)外部的一端，所述压块(53)通过滑道(51)与启停筒(5)滑动连接；
    所述辅助供氧管道(23)于支撑座(52)和压块(53)之间的管道内部设置弧形的弹性支撑杆(231)和具有弹性的隔离块(233)。
  2. 据权利要求1所述的无滞后供氧呼吸机系统，其特征在于，所述支流管(6)上设置启停阀(7)和驱动风扇(8)，启停阀(7)位于活塞(61)与驱动风扇(8)之间；
    所述启停阀(7)包括流通座(71)、滑环(72)、盖板(73)、回位弹簧(74)、流通滑块(75)和排气管(76)，所述流通座(71)和 滑环(72)固定位于支流管(6)的内壁，流通滑块(75)通过杆件与盖板(73)固定连接，所述盖板(73)位于流通座(71)和滑环(72)之间，所述盖板(73)与滑环(72)之间设置回位弹簧(74)，所述流通滑块(75)位于滑环(72)的内部且与滑环(72)滑动密封连接，所述流通滑块(75)上开设流通孔，所述排气管(76)位于滑环(72)靠近活塞(61)的一侧。
  3. 根据权利要求1或者2所述的无滞后供氧呼吸机系统，其特征在于，所述弹性支撑杆(231)的材料为通电发热的金属，弹性支撑杆(231)的两端连接用于通电的引线(232)。
  4. 根据权利要求3所述的无滞后供氧呼吸机系统，其特征在于，所述呼吸面罩(1)和呼气管(3)的内部设置气流感应器。
  5. 根据权利要求3所述的无滞后供氧呼吸机系统，其特征在于，所述呼气管(3)上设置单向阀(31)。
  6. 根据权利要求3所述的无滞后供氧呼吸机系统，其特征在于，所述辅助供氧管道(23)上设置减压阀(22)。
PCT/CN2021/136371 2021-03-25 2021-12-08 无滞后供氧呼吸机系统 WO2022199128A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/670,552 US20220305230A1 (en) 2021-03-25 2022-02-14 Non-hysteretic oxygen supply respirator system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110319087.9A CN113082411B (zh) 2021-03-25 2021-03-25 无滞后供氧呼吸机系统
CN202110319087.9 2021-03-25

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/670,552 Continuation US20220305230A1 (en) 2021-03-25 2022-02-14 Non-hysteretic oxygen supply respirator system

Publications (1)

Publication Number Publication Date
WO2022199128A1 true WO2022199128A1 (zh) 2022-09-29

Family

ID=76669529

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/136371 WO2022199128A1 (zh) 2021-03-25 2021-12-08 无滞后供氧呼吸机系统

Country Status (2)

Country Link
CN (1) CN113082411B (zh)
WO (1) WO2022199128A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113082411B (zh) * 2021-03-25 2022-01-04 湖南万脉医疗科技有限公司 无滞后供氧呼吸机系统

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201564924U (zh) * 2009-12-11 2010-09-01 江苏卡威专用汽车制造有限公司 正压闭路可调温度氧气呼吸器
CN102266614A (zh) * 2010-12-31 2011-12-07 北京谊安医疗系统股份有限公司 吸气触发控制方法及装置、呼吸机
CN102274565A (zh) * 2010-05-17 2011-12-14 深圳迈瑞生物医疗电子股份有限公司 一种连接到呼吸系统的压力补偿设备及压力补偿方法
US20130228180A1 (en) * 2012-03-02 2013-09-05 Samir S. Ahmad Dual pressure sensor continuous positive airway pressure (cpap) therapy
CN104717995A (zh) * 2012-10-10 2015-06-17 皇家飞利浦有限公司 利用在面罩装置处的压力传感器的自适应患者回路补偿
CN110975089A (zh) * 2019-12-20 2020-04-10 广州和普乐健康科技有限公司 潮气量计算方法、装置、存储介质及呼吸机
CN111603642A (zh) * 2020-03-31 2020-09-01 湖南万脉医疗科技有限公司 一种通气智能补偿调节呼吸机
CN113082411A (zh) * 2021-03-25 2021-07-09 湖南万脉医疗科技有限公司 无滞后供氧呼吸机系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007019350U1 (de) * 2006-09-07 2012-01-26 Resmed Limited Systeme zum Absenken des Ausatmungsdrucks in einem Maskensystem
US11291785B2 (en) * 2016-02-29 2022-04-05 Inovytec Medical Solutions Ltd Portable light-weight ventilator system
JP6624735B2 (ja) * 2016-07-26 2019-12-25 株式会社重松製作所 呼吸連動形電動ファン付き呼吸装置
CN111973855A (zh) * 2020-08-19 2020-11-24 黄献明 一种无创呼吸机的智能鼻罩固定系统

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201564924U (zh) * 2009-12-11 2010-09-01 江苏卡威专用汽车制造有限公司 正压闭路可调温度氧气呼吸器
CN102274565A (zh) * 2010-05-17 2011-12-14 深圳迈瑞生物医疗电子股份有限公司 一种连接到呼吸系统的压力补偿设备及压力补偿方法
CN102266614A (zh) * 2010-12-31 2011-12-07 北京谊安医疗系统股份有限公司 吸气触发控制方法及装置、呼吸机
US20130228180A1 (en) * 2012-03-02 2013-09-05 Samir S. Ahmad Dual pressure sensor continuous positive airway pressure (cpap) therapy
CN104717995A (zh) * 2012-10-10 2015-06-17 皇家飞利浦有限公司 利用在面罩装置处的压力传感器的自适应患者回路补偿
CN110975089A (zh) * 2019-12-20 2020-04-10 广州和普乐健康科技有限公司 潮气量计算方法、装置、存储介质及呼吸机
CN111603642A (zh) * 2020-03-31 2020-09-01 湖南万脉医疗科技有限公司 一种通气智能补偿调节呼吸机
CN113082411A (zh) * 2021-03-25 2021-07-09 湖南万脉医疗科技有限公司 无滞后供氧呼吸机系统

Also Published As

Publication number Publication date
CN113082411A (zh) 2021-07-09
CN113082411B (zh) 2022-01-04

Similar Documents

Publication Publication Date Title
CN102416213B (zh) 用于辅助患者呼吸的方法和装置以及气管假体和导管
US9259547B2 (en) Systems for reducing exhalation pressure in a mask system
US7997272B2 (en) Ventilating apparatus and method enabling a patient to talk with or without a trachostomy tube check valve
US7080645B2 (en) Anti-snoring device, method for reducing snoring, and a nasal air cannula
CA1319175C (en) Lung ventilator device
US7114497B2 (en) Method and system of individually controlling airway pressure of a patient's nares
US20220305230A1 (en) Non-hysteretic oxygen supply respirator system
CN112915336B (zh) 一种补偿式呼吸机供氧方法及呼吸机
CN108283749B (zh) 具有语音检测的呼吸辅助系统
US20100170512A1 (en) Improvements to Electrically Operable Resuscitators
JP2010502402A5 (zh)
WO2005007056A2 (en) A respiratory aid system and method
JP2013536705A (ja) レインアウトを防ぐための方法および装置
CN103736183A (zh) 一种双水平呼吸机压力控制装置及压力控制方法
WO2022199128A1 (zh) 无滞后供氧呼吸机系统
CN205252145U (zh) 咳痰系统
JP2024531983A (ja) 改良型弁を備えた換気システム
JP2015536781A (ja) 外科的医療装置及び方法
WO2017140280A1 (zh) 一种心肺复苏用触发式高频喷射呼吸机和心肺复苏用感知调控呼吸机
CN209519200U (zh) 智能可调式单向排气装置
CN103585707A (zh) 一种完全液体通气呼吸机
CN110237375A (zh) 一种呼气控制方法
CN104815379A (zh) 一种滑片式呼吸机气体压力流量控制阀及其工作原理
CN221692451U (zh) 一种高原医用恒压空气呼吸面罩
CN111135413A (zh) 密闭吸氧器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21932736

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21932736

Country of ref document: EP

Kind code of ref document: A1