Nothing Special   »   [go: up one dir, main page]

CN118382475A - 带有改进阀的换气系统 - Google Patents

带有改进阀的换气系统 Download PDF

Info

Publication number
CN118382475A
CN118382475A CN202280072847.3A CN202280072847A CN118382475A CN 118382475 A CN118382475 A CN 118382475A CN 202280072847 A CN202280072847 A CN 202280072847A CN 118382475 A CN118382475 A CN 118382475A
Authority
CN
China
Prior art keywords
valve
gas
air
patient
source
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.)
Pending
Application number
CN202280072847.3A
Other languages
English (en)
Inventor
赖安·雷德福德
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CN118382475A publication Critical patent/CN118382475A/zh
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20Valves specially adapted to medical respiratory devices
    • A61M16/201Controlled valves
    • A61M16/202Controlled valves electrically actuated
    • A61M16/203Proportional
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0057Pumps therefor
    • A61M16/0063Compressors
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0057Pumps therefor
    • A61M16/0066Blowers or centrifugal pumps
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/021Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes operated by electrical means
    • A61M16/022Control means therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/021Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes operated by electrical means
    • A61M16/022Control means therefor
    • A61M16/024Control means therefor including calculation means, e.g. using a processor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04Tracheal tubes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04Tracheal tubes
    • A61M16/0461Nasoendotracheal tubes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04Tracheal tubes
    • A61M16/0465Tracheostomy tubes; Devices for performing a tracheostomy; Accessories therefor, e.g. masks, filters
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/06Respiratory or anaesthetic masks
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • A61M16/1045Devices for humidifying or heating the inspired gas by using recovered moisture or heat from the expired gas
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • A61M16/1075Preparation of respiratory gases or vapours by influencing the temperature
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • A61M16/14Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/16Devices to humidify the respiration air
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • A61M16/14Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/16Devices to humidify the respiration air
    • A61M16/161Devices to humidify the respiration air with means for measuring the humidity
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20Valves specially adapted to medical respiratory devices
    • A61M16/201Controlled valves
    • A61M16/202Controlled valves electrically actuated
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20Valves specially adapted to medical respiratory devices
    • A61M16/201Controlled valves
    • A61M16/202Controlled valves electrically actuated
    • A61M16/203Proportional
    • A61M16/204Proportional used for inhalation control
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/0015Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors
    • A61M2016/0018Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors electrical
    • A61M2016/0021Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors electrical with a proportional output signal, e.g. from a thermistor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/0027Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/003Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
    • A61M2016/0033Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
    • A61M2016/0039Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical in the inspiratory circuit
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/003Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
    • A61M2016/0033Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
    • A61M2016/0042Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical in the expiratory circuit
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2202/00Special media to be introduced, removed or treated
    • A61M2202/02Gases
    • A61M2202/0208Oxygen
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • A61M2205/3303Using a biosensor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • A61M2205/3327Measuring
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • A61M2205/3331Pressure; Flow
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • A61M2205/3331Pressure; Flow
    • A61M2205/3334Measuring or controlling the flow rate
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • A61M2205/3331Pressure; Flow
    • A61M2205/3341Pressure; Flow stabilising pressure or flow to avoid excessive variation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • A61M2205/3368Temperature
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • A61M2205/3375Acoustical, e.g. ultrasonic, measuring means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/36General characteristics of the apparatus related to heating or cooling
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/50General characteristics of the apparatus with microprocessors or computers
    • A61M2205/502User interfaces, e.g. screens or keyboards
    • A61M2205/505Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2230/00Measuring parameters of the user
    • A61M2230/005Parameter used as control input for the apparatus
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2230/00Measuring parameters of the user
    • A61M2230/40Respiratory characteristics
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2230/00Measuring parameters of the user
    • A61M2230/40Respiratory characteristics
    • A61M2230/42Rate
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2230/00Measuring parameters of the user
    • A61M2230/40Respiratory characteristics
    • A61M2230/43Composition of exhalation
    • A61M2230/432Composition of exhalation partial CO2 pressure (P-CO2)
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2230/00Measuring parameters of the user
    • A61M2230/40Respiratory characteristics
    • A61M2230/43Composition of exhalation
    • A61M2230/435Composition of exhalation partial O2 pressure (P-O2)
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2230/00Measuring parameters of the user
    • A61M2230/60Muscle strain, i.e. measured on the user

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Emergency Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Prostheses (AREA)

Abstract

一种呼吸机系统,其具有配置为连接到加压空气或气体源的入口;配置为连接到患者接口的出口;在入口和出口之间内联的阀;和控制单元,其配置为控制所述阀以控制从所述源到患者的加压空气或气体流,其中所述阀包括结合到阀体中的空气或气体储存器或收集器。

Description

带有改进阀的换气系统
技术领域
本发明大体涉及呼吸护理系统,并且更具体地,涉及机械式换气系统或呼吸护理系统,即,呼吸机或呼吸器。本发明对于因疾病影响呼吸的人或动物患者提供呼吸支持具有特别的实用性,并且将结合这种实用性进行描述,但是其也可以用于治疗患有睡眠呼吸暂停的患者或者用作麻醉系统的部件。
背景技术
当前的新冠肺炎大流行凸显了呼吸系统受损患者对机械式换气系统的需求。呼吸治疗装置可用于在受试者的呼吸周期中在适当时间以治疗压力向患者供应清洁的可呼吸气体(通常是空气,有或没有补充氧气)。治疗压力辅助可以以与患者的呼吸同步的方式实施,以便在患者的正常呼吸的吸气周期期间允许更大的压力并且在呼气期间允许更低的压力。也可以实施治疗压力辅助以覆盖患者的正常呼吸的吸气周期。
呼吸护理系统通常包括气体或空气流发生器或压缩气体或空气源、空气过滤器、鼻腔、口腔或全脸面罩、将气流发生器连接到面罩的空气输送导管、各种传感器和基于微处理器的控制器。可选地,代替面罩,气管切开管也可以用作患者接口。气流发生器可以包括伺服控制电机和形成吹风机的叶轮。在一些情况下,可以实施用于吹风机电机的制动器以更快地降低吹风机的速度,从而克服电机和叶轮的惯性。制动可以允许吹风机不管惯性及时地更快速实现较低的压力条件,用于与患者的呼气同步。在一些情况下,气流发生器还可以包括能够配置为将产生的空气排放到大气中的阀,作为改变输送给患者的压力的装置,其作为电机速度控制的替代方案。除其它外,传感器测量电机速度、质量流速和出口压力,例如使用压力传感器等。该装置可选地可以包括在空气输送回路的路径中的加湿器和/或加热器元件。控制器可以包括具有或不具有集成的数据检索和显示功能的数据存储容量。
呼吸护理系统可用于治疗许多疾病,例如由于肺、神经肌肉或肌肉骨骼疾病以及呼吸控制疾病引起的呼吸功能不全或衰竭。它们也可用于与睡眠呼吸紊乱(SDB)(包括轻度阻塞性睡眠呼吸暂停(OSA))、过敏诱导的上呼吸道阻塞或上呼吸道早期病毒感染有关的疾病。
当前的新冠肺炎大流行已经使当前呼吸护理系统的供应紧张。医院被迫共享呼吸护理系统,即两名患者之间的呼吸机。医院也采取了将传统用于阻塞性睡眠呼吸暂停的装置调整为传统呼吸机的糟糕代替。
此外,目前的呼吸机是复杂且昂贵的设备,需要不断的监督和调整,而且容易出现故障。
发明内容
本公开提供了一种简单的低成本呼吸机,其克服了现有技术呼吸机的上述和其他缺点。
更具体地,本公开提供了一种呼吸机,该呼吸机在成本、尺寸减小、重量减小、功率减小、噪声减小和可靠性方面比当前的呼吸机具有显著优势。本公开的该呼吸机的一个关键是独特的空气或气流阀,其具有结合到阀中的空气或气体储存器或收集器。将空气或气体储存器或收集器结合到该阀中简化了系统的构造和成本,同时提供了改进的响应时间,从而提供了更好的患者支持。传统的呼吸机采用比例电磁阀(PSOL阀)或基于涡轮机的设计,其中核心流量/压力调节部件是一种高成本的多部件产品(订单1500美元-2000美元)。此外,在实践中,传统PSOL阀的柱塞的导柱上的静摩擦可能损害阀的灵敏度,这反过来可能导致迟滞效应。为了克服传统呼吸机的上述和其他缺点,本发明采用了一种新颖的低成本空气或气体阀,其具有结合到该阀中的一体式空气或气体储存器或收集器,并且该阀基本上由五个主要元件和基本上一个移动部件组成。
在一个实施方式中,本发明的呼吸机系统包括配置为连接到加压空气或气体源的入口;配置为连接到患者接口的出口;在入口和出口之间的内联的阀;和控制单元,其配置为控制该阀以控制从源到患者的加压空气或气体的流动,其中该阀包括结合到阀体中的空气或气体储存器或收集器。
在一个优选实施方式中,该阀包括由线性驱动机构、优选地伺服机构、机械螺杆驱动器或音圈驱动器控制的阀闸(valve gate)。
患者接口可以选自由面罩、插管和气管切开插管组成的组,并且加压空气或气体源可以选自由空气罐、压缩机、空气泵和加压空气管路组成的组。
本发明还提供了一种用于辅助有需要的患者呼吸的方法,包括:提供如上所述的换气系统;将该换气系统连接到加压空气源和患者接口;启动到换气系统的空气或气体流以预充空气或气体储存器或收集器,并通过打开和关闭阀来控制通过换气系统的气体流。
在本发明的另一个实施方式中,换气系统包括用于调节空气或气体的加热器和/或加湿器。
阀可以响应于患者的正常呼吸周期而打开和关闭,或者阀可以打开和关闭来引入空气或气体流以覆盖患者的正常呼吸周期。
患者可以是人类或非人类动物。
附图说明
结合附图考虑从以下描述中将看出本发明的进一步特征和优点,其中相同的附图标记表示相同的部件,并且其中
图l是根据本发明的结合了示出为连接至患者的紧凑型换气装置的呼吸机系统的示意图;
图2是根据本发明制造的紧凑型换气装置的透视图;
图3是根据本发明的优选实施方式的紧凑型换气装置的阀部件的功能元件图的截面图;
图4和图5是根据本发明的紧凑型换气装置的阀部件的横截面功能元件图;
图6是示出本发明的阀部件的力和力矩平衡的图;
图7是根据本发明的阀部件的分解图;
图8是示出本发明的紧凑型换气装置的操作的流程图;和
图9A-9C是示出根据本发明的触发气流进入的曲线图。
具体实施方式
在以下详细描述中,术语“空气”和“气体”以及术语“呼吸器”和“呼吸机”分别可互换使用。
本发明的呼吸治疗装置基于患者的自然潮式呼吸周期或基于程序化的呼吸周期以间歇时间间隔向患者提供补充空气或氧气。
参考图1,呼吸机系统10包括连接到加压气体源14的换气控制器12。加压气体源可以是加压空气或空气/氧气罐,如图所示的压缩机或空气泵,或加压空气管路。下面将详细描述的换气控制器12允许加压气体通过在16处的气体供应管路流到患者,该气体供应管路固定到患者接口,例如患者22佩戴的鼻罩或全面罩18。或者,患者接口18可以包括插管或气管切开插管。完成该系统的是感测和测量来自患者的吸气和/或呼气气流的二氧化碳描记监测器24,以及命令输入和监测器26。二氧化碳描记监测器24以及命令输入和监视器26是常规的,不需要进一步描述以理解本发明。
本发明的呼吸机系统10的中心是气体或气流控制阀28,其具有如下所描述的一体式气体或空气储存器或收集器。
现在参考图3-5,气体或气流控制阀28包括阀壳体40,其包含气体或空气流控制阀28的有源元件。气体供应入口42显示在负X轴面上,而气体源出口44显示在正X面上。另外,壳体40形成了气体储存器或收集器46。气体供应入口42可以与标准的医院O2源或任何气体源(例如气罐或压缩机)接合。
下面参考图3和图4描述的阀闸48根据其沿X轴的位置控制源流量,Q(t)。负Z表面上的面沿着X轴在阀壳体滑动表面50上滑动。阀闸的正X轴上的阀闸面和阀壳体密封表面52之间的距离δ通过在阀壳体密封表面和在正X轴上的阀闸Y-Z面之间形成阻力通道来确定流动阻力。
特别参考图5和图7,气体或气流控制阀28包括阀闸48,其配置为沿着阀滑动表面50的X轴滑动,从而设置其沿着X轴的位置。气体或气流控制阀28还包括线性致动器54,例如由电致伸缩材料(诸如PZT或PMN)、磁致伸缩材料形成的伺服机构,或音圈驱动器的机械螺杆驱动器或其它线性驱动机构。根据期望的源流量Q(t)或流动源压力P(t)在闭环控制下对其长度和所得的闸阀位置进行控制。阀闸48也可以在开环控制下被驱动。
通过弹簧组件56将负X方向上的预加载力施加到阀闸48组件上。
定位螺钉50在X方向上驱动阀闸48,设置弹簧组件预加载力和阀闸48沿X轴的初始位置。
弹簧柱塞58在负Z方向上向阀闸48提供预加载力。其目的是持续地保持阀闸48和阀壳体滑动表面50之间的气密密封。
垫圈60保持阀壳体的X-Z表面与阀闸48之间的气密密封。
再次参考图2,换气控制器12包括连接到气体或气流控制阀28的空气或气体输入端口30。控制阀28具有连接到端口的出口32,该端口包括吸气流连接34和呼气流端口36,呼气流端口36又连接到呼气流阀38。呼气流阀38可以通向大气中,或者被连接以除去CO2并通过气体输入端口30再循环。该系统还包括用于感测患者呼吸的呼气流量传感器或呼吸传感器40,以及用于触发阀28的来自传感器的连接。传感器可以包括空气流量传感器、温度传感器、声音传感器、CO2传感器或用于检测患者胸部运动的运动或应变传感器。
阀盖62包围阀壳体的X-Z面,一个在正Y轴上,另一个在负Y轴上。这些盖在阀壳体40和大气之间形成气密密封。
再次参考图4-6,在图4的左侧示出了处于关闭位置的阀,δ=0,阀流动阻力R(0)无穷大。图4示出了阀组件,其中闸沿X轴在负方向上移动了距离δ。因此,阀阻力不再是无穷大的,气体从储存器流向气源出口,如图所示。
阀流动阻力R(δ)计算如下:
源流量Q(t)由方程3控制,其中:
储存器压力,P储存器(t)
出口压力,P出口(t)
源流量,Q(t)
阀高度,H
沿Y轴的阀深度,D
阀闸与阀壳体密封表面的距离,δ
A(δ)=阻力通道横截面积方程1)
=Dδ
气体动态粘度,η(质量/(距离-时间)
R(δ)=通过阻力通道的排气流阻力
=(8η/π)H/A(δ)2方程2)
然后,可以通过以下关系来确定源流量:
Q(t)=(P储存器(t)-P出口(t))/R(δ)方程3)
阀壳体中的气体储存器区是必需的,因为尽管平均源流量Q(t)不超过可用供应流量Q供应(t)时,但Q(t)的峰值流量超过了。这种差异是由储存器中储存的气体造成的。
广义阀闸的力和力矩平衡如图5所示。方程4-12提供了力平衡和力矩平衡的控制方程。
P储存器=储存器压力
θ=阀闸角度
W=阀闸宽度
H=阀闸高度
H=H/Cosθ方程4)
D=阀闸深度
L1、L2和L3=弹簧距离
c摩擦=楔块摩擦系数
Z致动器=距离Z=0的致动器距离
P储存器=储存器气体压力
F压力X=X方向上来自腔室压力的力
=-P储存器HD方程5)
F压力Z=Z方向上来自腔室压力的力
=-P储存器(WD+H tanθD/2)方程6)
F柱塞=Z方向上来自弹簧柱塞的力
P阻力(Z)=沿流动阻力壁的压力
≈P储存器(Z/H)方程7)
FP阻力=由于流动引起的压力作用在阻力壁上的力
=(P储存器/2)DH方程8)
F弹簧=预加载弹簧提供的力
F致动器=定位致动器提供的力
Z力平衡
FZ=F柱塞+F压力Z+3F弹簧Sinθ方程9)
F摩擦=X方向上的摩擦力
=FZ c摩擦方程10)
X力平衡
(3F弹簧+FP储存器)Cosθ=F压力X+F致动器方程11)
绕Y轴的力矩平衡
F弹簧(L1+L2+L3)Cosθ2+FP阻力((2/3)H/Cosθ)Cosθ2=F压力XH/2+F致动器Z致动器方程12)
还参考图7,阀组件28通过改变流动阻力R(δ)来控制源气体流动。这是通过改变致动器54的长度△X来实现的,这又导致在阀闸48和阀壳体密封表面50之间的相应间隙中沿着X轴将阀闸48移动δ。储存器压力P储存器(t)被压力传感器70监测和利用,以计算控制如方程3所示的Q(t)的所需△X命令。
气体流经气体供应入口42中内联的流量传感器,该流量传感器测量作为时间t的函数的源流量Q(t)。该流量测量值被气源控制器和传感器/用户界面用来计算控制如方程3所示的Q(t)的所需△X命令。
与传统呼吸机的情况一样,入口气体或气流可能需要加湿和/或加热。这是通过从控制器到加湿和加热模块72的命令来实现的,其与储存器46通信,储存器46通过水的加热和随后的蒸发、水的压电雾化或将水添加到气流中的其他常规方法来添加水蒸气,增加气流的湿度。当气体流过该模块时,该模块也可以对气体进行加热。
气体流过相对湿度传感器,该相对湿度传感器测量作为时间t的函数的气体相对湿度RH(t)。控制器利用该测量值生成作为时间的函数的期望RH命令,RH命令(t)。
温度和压力源模块测量气体温度T(t)。控制器和传感器/用户界面利用该温度测量值计算加湿和加热模块的加热命令T命令(t)以控制气体温度。
温度和压力源模块还可以测量气体出口压力P出口(t)。控制器和传感器/用户界面利用该压力计算控制如方程3所示的Q(t)的所需△X命令。温度和压力模块的出口与气体供应管路对接,该气体供应管路终止于加压鼻呼吸机或其他患者呼吸装置,例如面罩、套管或插管。
气源控制器和传感器/用户接口包括用于控制气源流量Q(t)、压力P出口(t)、温度T(t)和相对湿度RH(t)所需的传感器接口。它产生致动器命令△X(t)、温度命令T命令(t)和相对湿度命令RH命令(t)。它还与用户命令输入装置和状态监视器连接,接收用于气源流量Q(t)、压力P出口(t)、T(t)和RH(t)的用户定义的命令集。气源控制器和传感器/用户接口还向用户命令输入装置和状态监视器提供传感器读数。
用户命令输入装置和状态监视器允许用户生成用于气源流量Q(t)、压力P出口(t)、T(t)和RH(t)的命令。它还显示传感器读数。该装置可以是类似于I-Pad的界面,其以有线或无线方式与加压鼻呼吸机组件通信。
气体供应管路可以是标准O2管路。气体供应管路也可以隔热,以便在从气体源行进到加压鼻呼吸机组件时将气体热损失最小化。气体供应管路还可以包括电加热元件以保持气体温度,并且还可以包括电源和数据线组以向加压鼻呼吸机组件提供电力并从加压鼻呼吸机组件接收传感器数据。由于气体供应管路具有已知的流动阻力RGSL,因此已知Q(t)、P出口(t)和RGSL,可以通过等式P(t)=P出口(t)-Q(t)RGSL来计算在进入加压鼻呼吸机气体端口的点处的压力P(t)。
附加的传感器可以提供用于控制气体源组件的输入。这些包括但不限于从加压鼻呼吸机组件空气腔室和通过胸腔运动监测呼吸速率和潮气量的基于阻抗的装置(例如系统)采样的空气腔室压力P腔室(t)、空气腔室温度TAC、空气腔室相对湿度RHAC、ETCO2和/或O2测量值。
参考图8,总体操作如下:气体源14向换气控制器12供应加压气体,换气控制器12打开阀28,以所需的频率、流量和压力向患者22供应气体,以支持患者的呼吸。由于在结合到阀28中的空气或气体储存器46中存在加压气体或空气的供应,将加压空气或气体输送到患者22基本上是在阀打开的瞬间进行。在患者呼气的同时对空气或气体储存器48进行再充。
与传统的换气装置相比,本发明的所得到的呼吸机系统是一种低成本、相对简单的装置,其坚固、体积小而方便而且重量轻,并且在响应患者需求方面异常快速。
图9A-9C是示出患者3次上升时间(压力支持)的流量和压力波形。
权利要求书(按照条约第19条的修改)
1.一种呼吸机系统,包括:
配置为连接到加压空气或气体源的入口;
配置为连接到患者接口的出口;
在入口和出口之间的内联的阀;和
控制单元,其配置为控制所述阀以控制从所述源到患者的加压空气或气体的流动,
其中所述阀其中所述阀包括由线性驱动伺服机构控制的阀闸,并且包括结合到阀体中的空气或气体储存器或收集器。
2.根据权利要求1所述的呼吸机系统,其中线性驱动机构包括机械螺杆驱动器或音圈驱动器。
3.根据权利要求1所述的呼吸机系统,其中所述患者接口选自由面罩、插管和气管切开插管组成的组。
4.根据权利要求1所述的呼吸机系统,其中所述加压空气或气体源选自由空气罐、压缩机、空气泵和加压空气管路组成的组。
5.根据权利要求1所述的呼吸机系统,还包括用于调节空气或气体的加热器和加湿器中的至少一种。
6.一种用于辅助需要呼吸的患者的呼吸的方法,包括:
提供根据权利要求1所述的呼吸机系统;
将所述呼吸机系统连接到加压空气源和患者接口;
启动到呼吸机系统的空气或气体流以预充空气或气体储存器或收集器,以及通过打开和关闭阀来控制通过呼吸机系统的气体流。
7.根据权利要求7所述的方法,其中所述阀响应于所述患者的正常呼吸周期而打开和关闭。
8.根据权利要求7所述的方法,其中打开和关闭所述阀以引入空气或气体流,从而覆盖患者的正常呼吸周期。
9.根据权利要求8所述的方法,其中所述患者包括人类。
10.根据权利要求8所述的方法,其中所述患者包括非人动物。

Claims (12)

1.一种呼吸机系统,包括:
配置为连接到加压空气或气体源的入口;
配置为连接到患者接口的出口;
在入口和出口之间的内联的阀;和
控制单元,其配置为控制所述阀以控制从所述源到患者的加压空气或气体的流动,
其中所述阀包括结合到阀体中的空气或气体储存器或收集器。
2.根据权利要求1所述的呼吸机系统,其中所述阀包括由线性驱动机构控制的阀闸。
3.根据权利要求2所述的呼吸机系统,其中所述线性驱动机构包括伺服机构。
4.根据权利要求2所述的呼吸机系统,其具有线性驱动机构,所述线性驱动机构包括机械螺杆驱动器或音圈驱动器。
5.根据权利要求1所述的呼吸机系统,其中所述患者接口选自由面罩、插管和气管切开插管组成的组。
6.根据权利要求1所述的呼吸机系统,其中所述加压空气或气体源选自由空气罐、压缩机、空气泵和加压空气管路组成的组。
7.根据权利要求1所述的呼吸机系统,还包括用于调节空气或气体的加热器和/或加湿器。
8.一种用于辅助需要呼吸的患者的呼吸的方法,包括:
提供根据权利要求1所述的呼吸机系统;
将所述呼吸机系统连接到加压空气源和患者接口;
启动到呼吸机系统的空气或气体流以预充空气或气体储存器或收集器,以及通过打开和关闭阀来控制通过呼吸机系统的气体流。
9.根据权利要求8所述的方法,其中所述阀响应于所述患者的正常呼吸周期而打开和关闭。
10.根据权利要求8所述的方法,其中打开和关闭所述阀以引入空气或气体流,从而覆盖患者的正常呼吸周期。
11.根据权利要求8所述的方法,其中所述患者包括人类。
12.根据权利要求8所述的方法,其中所述患者包括非人动物。
CN202280072847.3A 2021-09-02 2022-09-02 带有改进阀的换气系统 Pending CN118382475A (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US202163240298P 2021-09-02 2021-09-02
US63/240,298 2021-09-02
PCT/US2022/042531 WO2023034611A1 (en) 2021-09-02 2022-09-02 Ventilation system with improved valving

Publications (1)

Publication Number Publication Date
CN118382475A true CN118382475A (zh) 2024-07-23

Family

ID=85412959

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202280072847.3A Pending CN118382475A (zh) 2021-09-02 2022-09-02 带有改进阀的换气系统

Country Status (13)

Country Link
US (2) US20240269421A1 (zh)
EP (1) EP4395861A1 (zh)
JP (1) JP2024531983A (zh)
KR (1) KR20240055807A (zh)
CN (1) CN118382475A (zh)
AU (1) AU2022339875A1 (zh)
CA (1) CA3230777A1 (zh)
CO (1) CO2024003880A2 (zh)
CR (1) CR20240143A (zh)
IL (1) IL311221A (zh)
MX (1) MX2024002789A (zh)
PE (1) PE20240968A1 (zh)
WO (1) WO2023034611A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102340052B1 (ko) * 2019-01-03 2021-12-16 코웨이 주식회사 가습기
KR20200144003A (ko) * 2019-06-17 2020-12-28 코웨이 주식회사 가습청정기

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0282675A3 (en) * 1986-11-04 1990-01-03 Bird Products Corporation Flow control valve for a medical ventilator
US5299568A (en) * 1989-06-22 1994-04-05 Puritan-Bennett Corporation Method for controlling mixing and delivery of respiratory gas
DE59007402D1 (de) * 1990-10-30 1994-11-10 Siemens Ag Anordnung bzw. Ventilator zur Regelung der Durchflussmenge eines fliessenden Mediums, insbesondere eines Gases.
US6279574B1 (en) * 1998-12-04 2001-08-28 Bunnell, Incorporated Variable flow and pressure ventilation system
US20040194829A1 (en) * 2002-09-19 2004-10-07 Zaiser Lenoir E. Differential pressure valve employing near-balanced pressure
FR2868145B1 (fr) * 2004-03-26 2006-06-30 Air Liquide Valve de distribution de fluide et utilisation pour la fourniture d'air enrichi aux occupants d'un aeronef
US8307828B2 (en) * 2006-08-24 2012-11-13 Inovo, Inc. Pneumatic single-lumen medical gas conserver
US20220193352A1 (en) * 2007-05-30 2022-06-23 Gilbert Jacobus Kuypers Electrically operable resuscitators
EP3381496B1 (en) * 2008-09-17 2021-10-27 ResMed Pty Ltd Humidification of respiratory gases
US8763633B2 (en) * 2009-06-03 2014-07-01 The Technology Partnership Plc Valve
US20160045705A1 (en) * 2009-10-07 2016-02-18 Richard J. Arnott Apparatus and method for maintaining airway patency and pressure support ventilation
US8434481B2 (en) * 2009-12-03 2013-05-07 Covidien Lp Ventilator respiratory gas accumulator with dip tube
CN105007977B (zh) * 2013-03-07 2019-01-29 皇家飞利浦有限公司 阀门
US9962514B2 (en) * 2013-06-28 2018-05-08 Vyaire Medical Capital Llc Ventilator flow valve
CA2944347C (en) * 2014-03-31 2022-04-26 Colin Dunlop An improved mask apparatus for veterinary applications
US9833643B2 (en) * 2014-04-03 2017-12-05 Mark Squibb Apparatus for providing controlled flow of inhalation-air
WO2017029629A1 (en) * 2015-08-18 2017-02-23 Gilbert Jacobus Kuypers Improvements to electrically operable resuscitators
US11067187B2 (en) * 2016-01-27 2021-07-20 Regents Of The University Of Minnesota Fluidic control valve with small displacement actuators
US11400250B2 (en) * 2018-12-05 2022-08-02 Aires Medical LLC Mechanical ventilator with non-invasive option

Also Published As

Publication number Publication date
AU2022339875A1 (en) 2024-04-11
EP4395861A1 (en) 2024-07-10
US20240269421A1 (en) 2024-08-15
AU2022339875A2 (en) 2024-05-02
WO2023034611A1 (en) 2023-03-09
MX2024002789A (es) 2024-08-28
CA3230777A1 (en) 2023-03-09
IL311221A (en) 2024-05-01
CO2024003880A2 (es) 2024-05-10
WO2023034611A9 (en) 2024-02-22
JP2024531983A (ja) 2024-09-03
KR20240055807A (ko) 2024-04-29
CR20240143A (es) 2024-06-25
US20230233792A1 (en) 2023-07-27
PE20240968A1 (es) 2024-05-07

Similar Documents

Publication Publication Date Title
US11285281B2 (en) Electrically operable resuscitators
US9669172B2 (en) Discreet respiratory therapy system
JP4387394B2 (ja) 可呼吸ガス供給システムにおける物質送出
US6923181B2 (en) Nasal mask
US9962514B2 (en) Ventilator flow valve
US20230233792A1 (en) Ventilation system with improved valving
EP2827929B1 (en) Bi-directional flow generation in an in-exsufflation system
US20170113014A1 (en) Respiratory assistance apparatus
US9962515B2 (en) Ventilator exhalation flow valve
EP3160561B1 (en) Ventilator flow valve
TW202435925A (zh) 具有改進的閥門的通風系統
US20210213234A1 (en) High flow oxygen therapy with on-demand humidification and an active exhalation valve
JP5933462B2 (ja) 呼吸補助装置
JP2013090822A (ja) 呼吸補助装置

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination