WO2022147663A1 - 高流量氧疗仪 - Google Patents

高流量氧疗仪 Download PDF

Info

Publication number
WO2022147663A1
WO2022147663A1 PCT/CN2021/070350 CN2021070350W WO2022147663A1 WO 2022147663 A1 WO2022147663 A1 WO 2022147663A1 CN 2021070350 W CN2021070350 W CN 2021070350W WO 2022147663 A1 WO2022147663 A1 WO 2022147663A1
Authority
WO
WIPO (PCT)
Prior art keywords
oxygen
air
unit
main control
external
Prior art date
Application number
PCT/CN2021/070350
Other languages
English (en)
French (fr)
Inventor
董军
Original Assignee
深圳麦科田生物医疗技术股份有限公司
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 深圳麦科田生物医疗技术股份有限公司 filed Critical 深圳麦科田生物医疗技术股份有限公司
Priority to PCT/CN2021/070350 priority Critical patent/WO2022147663A1/zh
Publication of WO2022147663A1 publication Critical patent/WO2022147663A1/zh

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

Definitions

  • the present application relates to the technical field of respiratory therapy, and in particular, to a high-flow oxygen therapy apparatus.
  • High-flow oxygen therapy is effective for the rehabilitation and treatment of many patients with respiratory diseases, such as patients with acute hypoxic respiratory failure, patients after surgery, patients with immunosuppression, patients with cardiac insufficiency, etc. There are many domestic and foreign patients. Clinical application.
  • the existing high-flow oxygen therapy instrument cannot provide oxygen by itself, and requires an external oxygen source, relying on centralized oxygen supply or an external oxygen generator. It cannot be moved during centralized oxygen supply, and can only be used where there is an oxygen outlet.
  • the application provides an oxygen therapy instrument, which can be switched between the oxygen production unit or the external oxygen supply interface to supply oxygen through the pipeline switching unit, which can automatically adapt to the internal oxygen supply, the external oxygen supply, the internal oxygen supply and the external oxygen supply at the same time, etc.
  • an oxygen therapy instrument which can be switched between the oxygen production unit or the external oxygen supply interface to supply oxygen through the pipeline switching unit, which can automatically adapt to the internal oxygen supply, the external oxygen supply, the internal oxygen supply and the external oxygen supply at the same time, etc.
  • the problem that the high-flow oxygen therapy device in the prior art is limited by an external oxygen source is solved, so that the oxygen therapy device of the present application can be used both in hospitals and at home for the treatment and rehabilitation of chronic respiratory diseases.
  • the embodiment of the present application provides a high-flow oxygen therapy instrument, which includes an oxygen production unit, an external oxygen supply interface, and a pipeline switching unit.
  • the oxygen production unit is used for receiving air and producing oxygen
  • the external oxygen supply interface is used for In communication with the external oxygen source
  • the pipeline switching unit is used for switching the oxygen generating unit or the external oxygen supply interface to supply oxygen.
  • the solution of the present application through the switching of the pipeline switching unit in the oxygen production unit or the external oxygen supply interface to supply oxygen, can automatically adapt to the oxygen supply mode of internal oxygen supply or external oxygen supply, and is suitable for various scenarios such as hospitals and families.
  • the high-flow oxygen therapy apparatus in the prior art does not have the function of internal oxygen supply, nor can it complete the automatic switching between internal oxygen supply and external oxygen supply, and is very dependent on external oxygen supply.
  • External oxygen supply requires external oxygen sources such as external centralized oxygen supply or external oxygen generators. External oxygen sources often need to be available in specific areas such as hospitals. When external centralized oxygen supply is used, it cannot be moved and can only be used in places with oxygen outlets. .
  • the present application can not only solve the problem of excessive dependence of high-flow oxygen therapy instruments on external oxygen sources in the prior art, but also realize autonomous switching of oxygen sources.
  • the high-flow oxygen therapy apparatus further includes a main control unit, which is electrically connected to the oxygen production unit and the pipeline switching unit, respectively, and the main control unit is used to control all The switching of the pipeline switching unit is used to realize the selection of the oxygen source, and the main control unit is used to control the oxygen production unit to produce oxygen.
  • the solution of this embodiment by setting the main control unit, can control the oxygen production of the oxygen production unit and the selection of the oxygen source by the control pipeline switching unit.
  • the main control unit can realize signal detection and Coordinated control between various units to ensure the normal operation of the oxygen therapy instrument.
  • the oxygen therapy apparatus further includes a sensor, which is electrically connected to the main control unit, and the sensor is used to detect the oxygen supply of the external oxygen source and generate a signal to send to the main control unit.
  • a control unit, the main control unit judges the oxygen supply of the external oxygen source according to the signal.
  • the solution of this embodiment by setting the sensor, can detect the oxygen supply of the external oxygen source, provide the basis for the main control unit to select the oxygen supply mode, and can automatically adapt to scenarios such as external oxygen supply and internal oxygen supply.
  • the main control unit when the main control unit determines that the external oxygen source has supplied oxygen, the main control unit instructs the pipeline switching unit to connect to the external oxygen supply interface; when the main control unit It is determined that the external oxygen source does not supply oxygen, and the main control unit instructs the pipeline switching unit to connect to the oxygen generating unit.
  • the main control unit judges the oxygen supply situation through the detection signal of the sensor, so as to select the best oxygen supply mode according to local conditions, so as to realize the effective utilization of the oxygen source.
  • the high-flow oxygen therapy apparatus further includes an air-oxygen treatment assembly for receiving air and oxygen and producing gas suitable for a patient, wherein the air-oxygen treatment assembly receives The oxygen comes from the line switching unit.
  • the air-oxygen processing component is used to further process the received oxygen and air, such as uniform mixing, humidification, etc., so as to output gas suitable for patients.
  • the air-to-oxygen treatment assembly includes an air-to-oxygen ratio adjustment unit, the air-to-oxygen ratio adjustment unit communicates with the pipeline switching unit, and the air-to-oxygen ratio adjustment unit receives air and air from the pipeline.
  • the oxygen of the circuit switching unit, the air-oxygen ratio adjustment unit is used to adjust the ratio of air and oxygen, and output a specific concentration of air-oxygen mixed gas.
  • the ratio of air and oxygen is adjusted by setting the air-oxygen ratio adjustment unit, and the air-oxygen mixed gas of a specific concentration is output, and the air-oxygen mixed gas of different concentrations can be provided for patients with different needs, so as to achieve better treatment effect.
  • the air-oxygen treatment assembly includes an air-oxygen mixing unit, the air-oxygen mixing unit is in communication with the air-oxygen ratio adjusting unit, and the air-oxygen mixing unit receives the air-oxygen ratio adjusting unit.
  • the air-oxygen mixing unit uniformly mixes the oxygen and air in the air-oxygen mixed gas.
  • the air-oxygen treatment assembly includes an air-oxygen compression unit and a humidification unit, the air-oxygen compression unit is in communication with the air-oxygen mixing unit, and receives and compresses the air-oxygen mixing unit. Air-oxygen mixed gas; the humidification unit communicates with the air-oxygen compression unit, receives and humidifies the air-oxygen mixed gas from the air-oxygen compression unit.
  • the high-flow oxygen therapy instrument includes a filter unit, which is communicated with the oxygen production unit and the air-to-oxygen ratio adjustment unit respectively, and the filter unit receives air and purifies and filters the air. , the filter unit sends the purified air to the oxygen making unit and the air-to-oxygen ratio adjustment unit respectively.
  • the inhaled air is filtered, so as to reduce dust, water vapor and small particles in the air, so as to realize the purification and filtering of the air.
  • the main control unit is electrically connected to at least one of the air-to-oxygen ratio adjustment unit, the air-to-oxygen mixing unit, the air-to-oxygen compression unit and the humidification unit.
  • the corresponding air-oxygen treatment requirements are achieved through the electrical connection between the main control unit and at least one unit in the air-oxygen treatment assembly.
  • the main control unit is electrically connected with the air-to-oxygen ratio adjustment unit for adjusting air and oxygen.
  • the main control unit is electrically connected with the air-oxygen mixing unit to achieve full mixing of oxygen and air;
  • the main control unit is electrically connected with the air-oxygen compression unit to achieve pressurization of the air-oxygen mixed gas;
  • the main control unit is electrically connected with the humidification unit to realize the humidity adjustment of the air-oxygen mixed gas.
  • Fig. 1 is the structural relationship diagram of the high-flow oxygen therapy apparatus of a kind of embodiment
  • FIG. 2 is a flowchart of a high-flow oxygen therapy method according to an embodiment
  • FIG. 3 is a flowchart of a high-flow oxygen therapy method according to another embodiment.
  • 11-air oxygen treatment assembly 12-oxygen production unit, 13-filter unit, 14-external oxygen supply interface, 15-pipeline switching unit, 16-main control unit, 17-patient interface, 111-air oxygen ratio adjustment unit , 112-air-oxygen mixing unit, 113-air-oxygen compression unit, 114-humidification unit.
  • the high-flow oxygen therapy device belongs to oxygen therapy equipment.
  • the maximum oxygen flow provided by the traditional low-flow oxygen therapy device is generally less than 15L/min, which is far lower than the actual inspiratory peak of the patient. Flow, the insufficient flow will be supplemented by the air inhaled at the same time, so the oxygen concentration will be seriously diluted and the specific concentration is unknown.
  • the oxygen flow of the high-flow oxygen therapy device can reach 30 ⁇ 60L/Min or more. Due to the high flow rate of the high-flow oxygen therapy device, it is generally greater than the peak inspiratory flow of the patient. The patient will not inhale the surrounding air, which can better control the oxygen inhalation. Concentration, to achieve the purpose of delivering stable concentration of oxygen, flushing the patient's upper airway dead space, and generating a certain positive end-expiratory airway pressure (CPAP, Continuous Positive Airway Pressure), and the patient's tolerance is good.
  • CPAP Continuous Positive Airway Pressure
  • the existing high-flow oxygen therapy apparatus still has a series of problems.
  • the high-flow oxygen therapy apparatus cannot provide oxygen by itself, and requires an external oxygen source, relying on an external centralized oxygen supply or an external oxygen generator.
  • an external oxygen source to supply oxygen
  • the oxygen therapy device cannot be moved and can only be used where there is an oxygen outlet.
  • this embodiment provides a high-flow oxygen therapy apparatus capable of autonomously selecting an oxygen source. It includes an oxygen generating unit 12, an external oxygen supply interface 14, and a pipeline switching unit 15.
  • the oxygen generating unit 12 is used to receive air and produce oxygen
  • the external oxygen supply interface 14 is used to communicate with an external oxygen source
  • the pipeline switching unit 15 Used to switch the oxygen production unit 12 or the external oxygen supply interface 14 to supply oxygen.
  • the oxygen production unit 12 is used to produce oxygen, and the oxygen production unit 12 and the pipeline switching unit 15 are connected through the first ventilation pipeline.
  • the oxygen production unit 12 can produce oxygen in different ways, including but not limited to molecular sieve oxygen production.
  • Molecular sieve oxygen production refers to using the adsorption characteristics of molecular sieves at room temperature to separate and produce oxygen from the air.
  • Molecular sieve oxygen production specifically adopts pressure swing adsorption (Pressure Swing Adsorption,
  • the setting of the oxygen generating unit 12 can provide oxygen supply by itself in the absence of an external oxygen source, and when there is an external oxygen source but the interface of the external oxygen source is not compatible with the oxygen therapy instrument interface, the oxygen generating unit 12 can also provide oxygen supply. Oxygen support, so as to expand the use scenarios of oxygen therapy equipment and provide more convenience for patients.
  • the external oxygen supply interface 14 and the pipeline switching unit 15 are connected through a second ventilation pipeline, wherein the external oxygen supply interface 14 is used for communicating with an external oxygen source.
  • the external oxygen source can be an external centralized oxygen supply or an external oxygen generator to supply oxygen.
  • the pipeline switching unit 15 can switch between the oxygen generating unit 12 or the external oxygen supply interface 14, so as to realize the selection of the oxygen source.
  • the pipeline switching unit 15 uses an electronically controlled valve to switch the gas path.
  • the oxygen generated by the oxygen generating unit 12 enters the pipeline switching unit 15 through the first ventilation pipeline.
  • the external oxygen supply interface 14 receives an external oxygen source (such as an external centralized oxygen supply or an external oxygen generator), and the external oxygen supply interface 14 sends oxygen through the second ventilation pipeline It is sent to the line switching unit 15 .
  • an external oxygen source such as an external centralized oxygen supply or an external oxygen generator
  • the pipeline switching unit 15 when there is external oxygen supply, the pipeline switching unit 15 is preferentially connected to the external oxygen supply interface 14, and when the external oxygen source does not supply oxygen, the pipeline switching unit 15 is switched to connect to the external oxygen supply interface 14.
  • Oxygen production unit 12 can also be connected to the external oxygen supply interface 14 and the oxygen generating unit 12 at the same time.
  • the pipeline switching unit 15 is connected to the external oxygen supply.
  • the oxygen production unit 12 can be connected synchronously; on the contrary, when the oxygen supply of the oxygen production unit 12 is insufficient, the pipeline switching unit 15 can be connected to the external oxygen supply interface 14 synchronously to achieve sufficient oxygen supply.
  • the high-flow oxygen therapy apparatus further includes a main control unit 16 .
  • the main control unit 16 is electrically connected to the oxygen production unit 12 and the pipeline switching unit 15 respectively, and the main control unit 16 is used to control the pipeline switching unit 15 .
  • the main control unit 16 is used to control the oxygen production unit 12 to produce oxygen.
  • the pipeline switching unit 15 does not need to be controlled by the main control unit 16 , or the pipeline switching unit 15 can be manually adjusted to realize the pipeline switching unit 15 between the oxygen production unit 12 and the external oxygen supply interface 14 . switch.
  • the main control unit 16 can realize signal detection and coordinated control among various units, thereby ensuring the normal operation of the oxygen therapy apparatus.
  • the oxygen therapy apparatus further includes a sensor, which is electrically connected to the main control unit 16 , and the sensor is used to detect the oxygen supply of the external oxygen source and generate a signal to send to the main control unit 16 accordingly, and the main control unit 16 According to the signal, the oxygen supply of the external oxygen source is judged, and accordingly, the pipeline switching unit 15 is controlled to select the oxygen source.
  • the sensor is arranged on the second ventilation pipeline, between the external oxygen supply interface 14 and the pipeline switching unit 15 .
  • the sensor can be detected by methods including but not limited to detecting gas pressure, flow rate, oxygen concentration, etc. at the external oxygen supply interface 14, that is, a pressure sensor, flow sensor, oxygen concentration sensor, etc. can be used.
  • the main control unit 16 receives the detection signal from the sensor, and the main control unit 16 judges the oxygen supply of the external oxygen source according to the signal and controls the air-oxygen processing assembly 11 to switch the oxygen source accordingly.
  • the main control unit 16 determines whether there is an external oxygen source and the flow rate of the external oxygen source according to the flow signal. In one embodiment, if the main control unit 16 determines that the external oxygen source has supplied oxygen, the main control unit 16 instructs the pipeline switching unit 15 to preferentially connect to the external oxygen supply interface 14 .
  • the main control unit 16 determines that the external oxygen source does not supply oxygen, the main control unit 16 instructs the pipeline switching unit 15 is connected to the oxygen generating unit 12; when the main control unit 16 determines that the external oxygen source has supplied oxygen and the oxygen is sufficient, the main control unit 16 instructs the pipeline switching unit 15 to connect to the external oxygen supply interface 14; when the main control unit 16 determines that the external oxygen supply interface 14 If the oxygen source has supplied oxygen but the oxygen is insufficient, the main control unit 16 instructs the pipeline switching unit 15 to connect the external oxygen supply interface 14 and the oxygen generating unit 12 at the same time. This enables autonomous selection of the oxygen source.
  • the high-flow oxygen therapy apparatus further includes an air-oxygen treatment assembly 11, and the air-oxygen treatment assembly 11 is used for receiving air and oxygen and producing gas suitable for the patient, wherein the air-oxygen treatment assembly 11 is connected to the pipeline.
  • the switching unit 15 is connected through a third ventilation pipeline, and the air-oxygen processing assembly 11 receives oxygen from the pipeline switching unit 15 .
  • the air-to-oxygen treatment assembly 11 includes an air-to-oxygen ratio adjustment unit 111, the air-to-oxygen ratio adjustment unit 111 communicates with the pipeline switching unit 15 through a third ventilation pipeline, and the air-to-oxygen ratio adjustment unit 111 receives air and air from For the oxygen in the pipeline switching unit 15, the air-oxygen ratio adjustment unit 111 is used to adjust the ratio of air and oxygen, and output the air-oxygen mixed gas with a specific concentration.
  • the air-oxygen ratio adjustment unit 111 can provide different concentrations of air-oxygen mixed gas for patients with different needs, so as to achieve a better therapeutic effect.
  • the air-oxygen treatment assembly 11 includes an air-oxygen mixing unit 112, and the air-oxygen mixing unit 112 communicates with the air-oxygen ratio adjusting unit 111 through a third ventilation pipeline, and the air-oxygen mixing unit 112 receives the air-oxygen ratio adjusting unit 112 from the air-oxygen mixing unit 112.
  • the air-oxygen mixed gas in the unit 111 and the air-oxygen mixing unit 112 mix the oxygen and air in the air-oxygen mixed gas evenly.
  • the air-oxygen treatment assembly 11 includes an air-oxygen compression unit 113 and a humidification unit 114.
  • the air-oxygen compression unit 113 communicates with the air-oxygen mixing unit 112 through a third ventilation pipeline, and receives and compresses the air-oxygen mixing unit 112 from the air-oxygen mixing unit.
  • the air-oxygen compression unit 113 uses a high-speed turbo blower to achieve supercharging.
  • a brushless motor can be selected for the high-speed turbine fan, and the rotational speed of the motor can be adjusted by using Pulse Width Modulation (PWM) technology to achieve pressurization of the air-oxygen mixture, thereby adjusting the flow of the air-oxygen mixture.
  • PWM Pulse Width Modulation
  • the humidification unit 114 communicates with the air-oxygen compression unit 113 through a third ventilation pipeline, and receives and humidifies the air-oxygen mixed gas from the air-oxygen compression unit 113 .
  • the humidification unit 114 is implemented by a humidification box.
  • the air-oxygen mixed gas enters from the inlet of the humidification box and is output from the outlet after being humidified.
  • the air-oxygen mixed gas is humidified through the humidification unit 114 to improve the comfort of the patient.
  • Humidification can increase the humidity of the mucous membrane of the respiratory tract, which is beneficial to the discharge of secretions and avoids the problem of drying.
  • the air-oxygen treatment assembly 11 may also have a heating unit to properly heat the air-oxygen mixed gas to reduce the irritation of cold air entering the patient's respiratory tract.
  • the internal structures of the air-oxygen treatment assembly 11 are connected through a third ventilation pipeline.
  • the third ventilation pipeline is connected to the air-to-oxygen ratio adjustment unit 111 , the air-to-oxygen mixing unit 112 , and the air-to-oxygen compression unit. 113 and humidification unit 114.
  • the third ventilation pipeline is connected in sequence: pipeline switching unit 15 , air-oxygen ratio adjustment unit 111 , air-oxygen mixing unit 112 , air-oxygen compression unit 113 , humidification unit 114 , and patient interface 17 .
  • the high-flow oxygen therapy apparatus includes a filter unit 13, which is communicated with the oxygen production unit 12 and the air-to-oxygen ratio adjustment unit 111 respectively.
  • the filter unit 13 is used for receiving air and purifying and filtering the inhaled air. , to reduce dust, moisture and small particles in the air.
  • the filter unit 13 sends the purified air to the oxygen production unit 12 and the air-to-oxygen ratio adjustment unit 111 respectively.
  • the filter unit 13 sends the purified air to the oxygen production unit 12 for the preparation of oxygen.
  • the filter unit 13 may be an integral part of the air-oxygen treatment assembly 11 .
  • the filter unit 13 includes a filter screen and a filter cotton located on the side of the filter screen close to the air-oxygen treatment component 11 , and the filter cotton can be in a single-layer manner.
  • the main control unit 16 is electrically connected to at least one of the air-to-oxygen ratio adjustment unit 111, the air-to-oxygen mixing unit 112, the air-to-oxygen compression unit 113 and the humidification unit 114.
  • the main control unit 16 may be electrically connected to one of the above-mentioned units, may also be electrically connected to multiple units of the above-mentioned units, or may be electrically connected to all of the above-mentioned units.
  • the main control unit 16 is electrically connected with the air-oxygen ratio adjustment unit 111.
  • the main control unit 16 adjusts the ratio of air and oxygen by adjusting the air-to-oxygen ratio adjustment unit 111 according to the user's settings, and outputs a specific concentration of air-oxygen mixed gas;
  • main control The unit 16 is electrically connected to the air-oxygen mixing unit 112, and the main control unit 16 controls the air-oxygen mixing unit 112 to fully mix oxygen and air.
  • the air-oxygen mixing unit 112 may not be electrically connected to the main control unit 16;
  • the unit 16 is electrically connected with the air-oxygen compression unit 113, and the air-oxygen compression unit 113 realizes the pressurization of the air-oxygen mixed gas under the instruction of the main control unit 16;
  • the main control unit 16 is electrically connected with the humidification unit 114, and the main control unit 16 According to the user's requirement for the humidity of the air-oxygen mixed gas, the humidifying unit 114 is instructed to adjust the humidity of the air-oxygen mixed gas.
  • the oxygen therapy device includes a display screen and buttons, and the display screen can display the current oxygen supply mode, such as whether it is external centralized oxygen supply or internal oxygen production unit 12 supplying oxygen, or external centralized oxygen supply and internal oxygen supply.
  • the oxygen supply to the oxygen generating unit 12 is performed synchronously.
  • the display screen can also display the oxygen concentration and flow rate of the air-oxygen mixed gas, so that the patient or doctor has an intuitive understanding of the current air-oxygen mixed gas situation;
  • the humidity and oxygen supply mode can be set, and corresponding treatment methods can be adopted according to the different needs of patients in different stages of respiratory disease to achieve flexible adjustment.
  • a high-flow oxygen therapy method comprising:
  • the sensor detects the oxygen supply of the external oxygen supply interface 14 and generates a signal
  • S14 the main control unit 16 judges the oxygen supply situation of the external oxygen source according to the signal
  • a high-flow oxygen therapy method comprising:
  • the sensor detects the oxygen supply of the external oxygen supply interface 14 and generates a signal
  • the oxygen concentration is constant: compared with the traditional low-flow oxygen therapy device, the air-oxygen mixed gas flow output by the high-flow oxygen therapy device in the embodiment of the present application is greater than the patient's peak inspiratory flow, thereby ensuring the inhaled oxygen concentration. constant.
  • the air-oxygen mixed gas pressurized by the air-oxygen compression unit 113 can generate a continuous positive airway pressure (CPAP, Continuous Positive Airway Pressure) when the patient's oral cavity is well closed. effect, improve lung compliance, and enhance oxygenation.
  • CPAP Continuous Positive Airway Pressure

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)
  • Accommodation For Nursing Or Treatment Tables (AREA)

Abstract

一种高流量氧疗仪,包括制氧单元(12)、外部供氧接口(14)、管路切换单元(15),制氧单元(12)用于接收空气并产出氧气,外部供氧接口(14)用于与外部氧源连通,管路切换单元(15)用于切换制氧单元(12)或外部供氧接口(14)供应氧气,能够自动适配内部供氧或外部供氧的供氧模式,适用于医院、家庭等多种场景。

Description

高流量氧疗仪 技术领域
本申请涉及呼吸治疗技术领域,尤其涉及一种高流量氧疗仪。
背景技术
高流量氧疗对于很多呼吸疾病的患者康复和治疗均有效果,例如可以用于急性低氧呼吸衰竭患者、外科手术后患者、免疫抑制患者、心功能不全患者等,在国内外已有很多的临床应用。但是,现有高流量氧疗仪自身不能提供氧气,需要外接氧源,依赖集中供氧或是外接制氧机。集中供氧时无法移动,只能在有氧气出口的地方使用。
发明内容
本申请提供一种氧疗仪,通过管路切换单元在制氧单元或外部供氧接口切换以供应氧气,能够自动适配内部供氧、外部供氧、内部供氧和外部供氧同时进行等多种场景。从而解决现有技术中高流量氧疗仪受限于外接氧源限制问题,使得本申请的氧疗仪既可以在医院使用,也可以在家中使用,用于慢性呼吸疾病的治疗和康复。
本申请实施例提供一种高流量氧疗仪,包括制氧单元、外部供氧接口、管路切换单元,所述制氧单元用于接收空气并产出氧气,所述外部供氧接口用于与所述外部氧源连通,所述管路切换单元用于切换所述制氧单元或所述外部供氧接口供应氧气。
本申请的方案,通过管路切换单元在制氧单元或外部供氧接口切换以供应氧气,能够自动适配内部供氧或外部供氧的供氧方式,适用于医院、家庭等多 种场景。而现有技术的高流量氧疗仪没有内部供氧的功能,更无法完成内部供氧和外部供氧的自主切换,十分依赖外部供氧。而外部供氧需要通过外部集中供氧或外接制氧机等外部氧源,外部氧源往往需要在医院等特定区域才有,外部集中供氧时无法移动,只能在有氧气出口的地方使用。外接制氧机时,由于制氧机与高流量两者的接口不统一,很容易出现漏气或其他不匹配的情况。本申请不仅能够解决现有技术中高流量氧疗仪对外部氧源过度依赖的问题,并且可以实现氧源的自主切换。
一种实施方式中,所述高流量氧疗仪还包括主控单元,所述主控单元分别与所述制氧单元和所述管路切换单元电连接,所述主控单元用于控制所述管路切换单元的切换以实现对氧源的选择,所述主控单元用于控制所述制氧单元制造氧气。
本实施例的方案,通过设置主控单元,能够控制制氧单元的制氧以及控制管路切换单元对氧源的选择,主控单元作为整个氧疗仪的指挥中心,能够实现信号的检测和各个单元之间的协调控制,从而保证氧疗仪的正常工作。
一种实施方式中,所述氧疗仪还包括传感器,所述传感器与所述主控单元电连接,所述传感器用于检测所述外部氧源的供氧情况并生成信号发送给所述主控单元,所述主控单元根据所述信号判断所述外部氧源的供氧情况。
本实施例的方案,通过设置传感器,能够检测外部氧源的供氧情况,为主控单元选择供氧模式提供依据,能够自动的适配外部供氧、内部供氧等场景。
一种实施方式中,当所述主控单元判定所述外部氧源已供氧,则所述主控单元指令所述管路切换单元连通至所述外部供氧接口;当所述主控单元判定所述外部氧源未供氧,所述主控单元指令所述管路切换单元连通至所述制氧单元。
本实施例的方案,主控单元通过传感器的检测信号,判断供氧情况从而因地制宜地选择最佳的供氧模式,以实现氧源的有效利用。
一种实施方式中,所述高流量氧疗仪还包括空氧处理组件,所述空氧处理组件用于接收空气和氧气并产出适用于患者的气体,其中,所述空氧处理组件接收的氧气来自所述管路切换单元。
本实施例的方案,空氧处理组件用于对接收的氧气和空气进行进一步处理,例如混合均匀、加湿等,从而输出适用于患者的气体。
一种实施方式中,所述空氧处理组件包括空氧比例调节单元,所述空氧比例调节单元与所述管路切换单元连通,所述空氧比例调节单元接收空气和来自于所述管路切换单元的氧气,所述空氧比例调节单元用于调节空气和氧气的比例,并输出特定浓度的空氧混合气体。
本实施例的方案,通过设置空氧比例调节单元来调整空气和氧气的比例,输出特定浓度的空氧混合气体,针对不同需求的病人可以提供不同浓度的空氧混合气体,从而达到更好的治疗效果。
一种实施方式中,所述空氧处理组件包括空氧混合单元,所述空氧混合单元与所述空氧比例调节单元连通,所述空氧混合单元接收来自所述空氧比例调节单元的所述空氧混合气体,所述空氧混合单元将所述空氧混合气体中的氧气和空气混合均匀。
本实施例的方案,通过设置空氧混合单元,使得氧气和空气充分混合,实现氧气的均匀分布。
一种实施方式中,所述空氧处理组件包括空氧压缩单元和湿化单元,所述空氧压缩单元与所述空氧混合单元连通,接收并压缩来自所述空氧混合单元的所述空氧混合气体;所述湿化单元与所述空氧压缩单元连通,接收并加湿来自所述空氧压缩单元的所述空氧混合气体。
本实施例的方案,通过设置空氧压缩单元,实现对空氧混合气体的增压,进而调节空氧混合气体的流量;通过设置湿化单元,形成湿润的空氧混合气体, 减少气体进入患者鼻腔的刺激性,提高患者舒适度。
一种实施方式中,所述高流量氧疗仪包括过滤单元,所述过滤单元分别与所述制氧单元和所述空氧比例调节单元连通,所述过滤单元接收空气并对空气进行净化过滤,所述过滤单元将净化后的空气分别输送给所述制氧单元和所述空氧比例调节单元。
本实施例的方案,通过设置过滤单元,对吸入的空气进行过滤,以降低空气中的灰尘、水汽和小颗粒,实现对空气进行净化过滤。
一种实施方式中,所述主控单元与所述空氧比例调节单元、所述空氧混合单元、所述空氧压缩单元和所述湿化单元中的至少一个电连接。
本实施例的方案,通过主控单元与空氧处理组件中至少一个单元的电连接,实现相应的空氧处理需求,如主控单元与空氧比例调节单元电连接,用于调整空气和氧气的比例,输出特定浓度的空氧混合气体;主控单元与空氧混合单元电连接实现氧气和空气的充分混合;主控单元与空氧压缩单元电连接实现对空氧混合气体的增压;主控单元与湿化单元电连接实现对空氧混合气体的湿度调整。
附图说明
为了更清楚地说明本申请实施方式或现有技术中的技术方案,下面将对实施方式或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施方式,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是一种实施例的高流量氧疗仪的结构关系图;
图2是一种实施例的高流量氧疗方法流程图;
图3是另一种实施例的高流量氧疗方法流程图。
附图标记说明:
11-空氧处理组件,12-制氧单元,13-过滤单元,14-外部供氧接口,15-管路切换单元,16-主控单元,17-患者接口,111-空氧比例调节单元,112-空氧混合单元,113-空氧压缩单元,114-湿化单元。
具体实施方式
下面将结合本申请实施方式中的附图,对本申请实施方式中的技术方案进行清楚、完整地描述,显然,所描述的实施方式仅仅是本申请一部分实施方式,而不是全部的实施方式。基于本申请中的实施方式,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施方式,都属于本申请保护的范围。
本实施例提供一种高流量氧疗仪,高流量氧疗仪属于氧疗设备,传统的低流量氧疗装置提供的氧流量最高一般小于15L/min,远远低于患者的实际吸气峰流量,不足的流量部分会被同时吸入的空气补充,因此吸氧浓度会被严重稀释并且具体浓度不详。高流量氧疗仪的氧流量可达30~60L/Min或以上,高流量氧疗仪由于流量高,一般大于患者的吸气峰流量,病人不会吸入周围空气,能较好的控制吸氧浓度,达到传送稳定浓度的氧气、冲刷患者上气道死腔、产生一定的呼气末气道正压(CPAP,Continuous Positive Airway Pressure)的目的,同时患者耐受性好。
但现有的高流量氧疗仪仍然存在一系列问题,高流量氧疗仪自身不能提供氧气,需要外接氧源,依赖外部集中供氧或是外接制氧机。使用外部氧源供氧时氧疗仪无法移动,只能在有氧气出口的地方使用。
如图1所示,为解决现有高流量氧疗仪的问题,本实施例提供一种能够自主选择氧源的高流量氧疗仪。其包括制氧单元12、外部供氧接口14、管路切换单元15,制氧单元12用于接收空气并产出氧气,外部供氧接口14用于与外部氧源连通,管路切换单元15用于切换制氧单元12或外部供氧接口14供应氧气。
在本实施方式中,制氧单元12用于制备氧气,制氧单元12与管路切换单元 15通过第一通气管路连接。制氧单元12制氧可以采用不同的方式,包括但不限于分子筛制氧,分子筛制氧是指在常温下采用分子筛的吸附特性,从空气中分离制取氧气。分子筛制氧具体采用变压吸附法(Pressure Swing Adsorption,
PSA)。制氧单元12的设置可以在不存在外部氧源的情况下自行提供氧气供应,以及当存在外接氧源但是外接氧源的接口与氧疗仪接口不适配时,制氧单元12也可以提供氧气支持,从而扩大氧疗仪的使用场景,为患者提供更多便利。
外部供氧接口14和管路切换单元15通过第二通气管路连接,其中,外部供氧接口14用于与外部氧源连通。可选的,外部氧源可以是外部集中供氧或外部制氧机供氧。
管路切换单元15可以在制氧单元12或外部供氧接口14之间切换,从而实现对氧源的选择。可选的,管路切换单元15采用电控阀来进行气路切换。当管路切换单元15切换至制氧单元12时,制氧单元12产生的氧气通过第一通气管路进入管路切换单元15。当管路切换单元15切换至外部供氧接口14时,外部供氧接口14接收外部氧源(如外部集中供氧或外接制氧机),外部供氧接口14通过第二通气管路将氧气输送给管路切换单元15。在一种实施方式中,在有外部供氧的情况下,管路切换单元15优先连通至外部供氧接口14,在外部氧源未供氧的情况下,管路切换单元15则切换连通至制氧单元12。在其他实施方式中,管路切换单元15也可以同时连通外部供氧接口14和制氧单元12,例如虽然存在外部氧源但是氧源的流量供应不足时,管路切换单元15在连接外部供氧接口14的基础上可以同步连通制氧单元12;反之,在制氧单元12的供氧不足时,管路切换单元15可以同步连通至外部供氧接口14,以实现氧气的充足供应。
在一种实施方式中,高流量氧疗仪还包括主控单元16,主控单元16分别与制氧单元12和管路切换单元15电连接,主控单元16用于控制管路切换单元15的切换以实现对氧源的选择,主控单元16用于控制制氧单元12制造氧气。需要说明的是,管路切换单元15可以不需要通过主控单元16控制,也可以通过手动调整管路切换单元15以实现管路切换单元15在制氧单元12和外部供氧接口14之间的切换。主控单元16作为整个氧疗仪的指挥中心,能够实现信号的检测和各个单元之间的协调控制,从而保证氧疗仪的正常工作。
在一种实施方式中,氧疗仪还包括传感器,传感器与主控单元16电连接, 传感器用于检测外部氧源的供氧情况并据此生成信号发送给主控单元16,主控单元16根据信号判断外部氧源的供氧情况并据此控制管路切换单元15选择氧气来源。可选的,传感器设置于第二通气管路上,设于外部供氧接口14和管路切换单元15之间。可选的,传感器可以通过包括但不限于检测外部供氧接口14处的气体压力、流量、氧气浓度等方式来进行检测,即可以采用压力传感器、流量传感器、氧气浓度传感器等。
在一种实施方式中,主控单元16接收来自于传感器的检测信号,主控单元16根据该信号判断外部氧源的供氧情况并据此控制空氧处理组件11切换氧气来源。主控单元16根据该流量信号判断是否存在外部氧源以及外部氧源的流量大小。在一种实施方式中,若主控单元16判定外部氧源已供氧,则主控单元16指令管路切换单元15优先连通至外部供氧接口14,若主控单元16判定外部氧源未供氧,则主控单元16指令管路切换单元15连通至制氧单元12;在其他实施方式中,若主控单元16判定外部氧源未供氧,则主控单元16指令管路切换单元15连通至制氧单元12;当主控单元16判定外部氧源已供氧且氧气充足,则主控单元16指令管路切换单元15连通至外部供氧接口14;当主控单元16判定外部氧源已供氧但氧气不充足,则主控单元16指令管路切换单元15同时连通外部供氧接口14和制氧单元12。由此实现氧源的自主选择。
在一种实施方式中,高流量氧疗仪还包括空氧处理组件11,空氧处理组件11用于接收空气和氧气并产出适用于患者的气体,其中,空氧处理组件11与管路切换单元15通过第三通气管路连接,空氧处理组件11接收来自管路切换单元15的氧气。
在一种实施方式中,空氧处理组件11包括空氧比例调节单元111,空氧比例调节单元111通过第三通气管路与管路切换单元15连通,空氧比例调节单元111接收空气和来自于管路切换单元15的氧气,空氧比例调节单元111用于调节空气和氧气的比例,并输出特定浓度的空氧混合气体。空氧比例调节单元111可以针对不同需求的病人可提供不同浓度的空氧混合气体,从而达到更好的治疗效果。
在一种实施方式中,空氧处理组件11包括空氧混合单元112,空氧混合单元112通过第三通气管路与空氧比例调节单元111连通,空氧混合单元112接收 来自空氧比例调节单元111的空氧混合气体,空氧混合单元112将空氧混合气体中的氧气和空气混合均匀。
在一种实施方式中,空氧处理组件11包括空氧压缩单元113和湿化单元114,空氧压缩单元113通过第三通气管路与空氧混合单元112连通,接收并压缩来自空氧混合单元112的空氧混合气体,可选的,空氧压缩单元113采用高速涡轮风机来实现增压。进一步的,高速涡轮风机可以选用无刷电机,通过采用脉冲宽度调制技术(Pulse Width Modulation,PWM)对电机的转速进行调节,实现对空氧混合气体的增压,进而调节空氧混合气体的流量。
湿化单元114通过第三通气管路与空氧压缩单元113连通,接收并加湿来自空氧压缩单元113的空氧混合气体。可选的,湿化单元114采用加湿盒来实现。空氧混合气体从加湿盒的入口进入,经加湿后从出口输出。把空氧混合气体通过湿化单元114进行加湿,提高患者的舒适度,加湿可以增加呼吸道黏膜的湿度,有利于分泌物的排出,避免出现干燥问题。在其他实施方式中,空氧处理组件11还可以有加热单元,对空氧混合气体进行适当加热,减少冷空气进入患者呼吸道的刺激性。
在一种实施方式中,空氧处理组件11的内部结构均通过第三通气管路连接,具体的,第三通气管路连通空氧比例调节单元111、空氧混合单元112、空氧压缩单元113和湿化单元114。此外,空氧处理组件11和管路切换单元15之间、空氧处理组件11和患者接口17之间,也通过第三通气管路连通。在一种实施方式中,第三通气管路依次连接:管路切换单元15、空氧比例调节单元111、空氧混合单元112、空氧压缩单元113和湿化单元114、患者接口17。
在一种实施方式中,高流量氧疗仪包括过滤单元13,过滤单元13分别与制氧单元12和空氧比例调节单元111连通,过滤单元13用于接收空气并对吸入的空气进行净化过滤,以降低空气中的灰尘、水汽和小颗粒。过滤单元13将净化后的空气分别输送给制氧单元12和空氧比例调节单元111。过滤单元13将净化后的空气输送给制氧单元12用于氧气的制备。在其他实施方式中,过滤单元13可以是空氧处理组件11的组成部分。可选的,过滤单元13包括过滤网和位于过滤网靠近空氧处理组件11一侧的过滤棉,过滤棉可以采用单层方式。
在一种实施方式中,主控单元16与空氧比例调节单元111、空氧混合单元 112、空氧压缩单元113和湿化单元114中的至少一个电连接。具体的,主控单元16可以与上述单元中的一个单元进行电连接,也可以与上述单元的多个单元进行电连接,也可以与上述单元的全部单元进行电连接。
主控单元16与空氧比例调节单元111电连接,主控单元16根据用户的设置,通过调节空氧比例调节单元111来调整空气和氧气的比例,输出特定浓度的空氧混合气体;主控单元16与空氧混合单元112电连接,主控单元16控制空氧混合单元112充分混合氧气和空气,在其他实施方式中,空氧混合单元112可以不与主控单元16电连接;主控单元16与空氧压缩单元113电连接,空氧压缩单元113在主控单元16的指令下实现对空氧混合气体的增压;主控单元16与湿化单元114电连接,主控单元16根据用户对空氧混合气体的湿度需求,指令湿化单元114对空氧混合气体进行湿度调整。
在一种实施方式中,氧疗仪包括显示屏和按键,显示屏可以显示当前的供氧模式,比如是外部集供氧还是内部制氧单元12供氧,亦或是外部集中供氧与内部制氧单元12供氧同步进行。显示屏还可以显示空氧混合气体的氧气浓度和流量,使得病人或医生对当前的空氧混合气体情况有一个直观的了解;病人或医生还通过按键对空氧混合气体的氧气浓度、流量、湿度、供氧模式进行设置,可以根据患者呼吸疾病不同阶段不同需求,采用相应的治疗方式,以实现灵活调整。
在一种实施方式中,如图2所示,提供一种高流量氧疗方法,包括:
S11:传感器检测外部供氧接口14的供氧情况并生成信号;
S12:传感器将信号发送给主控单元16;
S13:主控单元16接收信号;
S14:主控单元16根据信号判断外部氧源的供氧情况;
S141:若主控单元16判定外部氧源已供氧,则主控单元16指令管路切换单元15连通至外部供氧接口14;
S142:若主控单元16判定外部氧源未供氧,则主控单元16指令管路切换单元15连通至制氧单元12。
在另一种实施方式中,如图3所示,提供一种高流量氧疗方法,包括:
S21:传感器检测外部供氧接口14的供氧情况并生成信号;
S22:传感器将信号发送给主控单元16;
S23:主控单元16接收信号;
S24:主控单元16根据信号判断外部氧源的供氧情况;
S241:若主控单元16判定外部氧源未供氧,则主控单元16指令管路切换单元15连通至制氧单元12;
S242:若主控单元16判定外部氧源已供氧且氧气充足,则主控单元16指令管路切换单元15连通至外部供氧接口14;
S243:若主控单元16判定外部氧源已供氧但氧气不充足,则主控单元16指令管路切换单元15同时连通外部供氧接口14和制氧单元12。
本申请实施方案所提供的高流量氧疗仪至少具有以下优点:
1.能够自动适配内部供氧、外部供氧、内部供氧和外部供氧同时供氧等多种供氧方式,适用于医院、家庭等多种场景,不过度依赖外部氧源。
2.氧浓度恒定:相比于传统的低流量氧疗装置,本申请实施方案中的高流量氧疗仪所输出的空氧混合气体流量大于患者的吸气峰流量,从而保证吸入氧浓度的恒定。
3.良好的温湿化效果:能提供温度适宜(如37℃)、湿度适当的空氧混合气体,提高患者的舒适度,减少对患者呼吸道粘膜的刺激性。
4.产生一定气道正压:空氧压缩单元113加压后的空氧混合气体,在患者口腔闭合良好的情况下,可产生一个类似持续气道正压(CPAP,Continuous Positive Airway Pressure)的作用,改善肺顺应性,并提高氧合作用。
以上所揭露的仅为本申请一种较佳实施例而已,当然不能以此来限定本申请之权利范围,本领域普通技术人员可以理解实现上述实施例的全部或部分流程,并依本申请权利要求所作的等同变化,仍属于申请所涵盖的范围。

Claims (10)

  1. 一种高流量氧疗仪,其特征在于,包括制氧单元、外部供氧接口、管路切换单元,所述制氧单元用于接收空气并产出氧气,所述外部供氧接口用于与所述外部氧源连通,所述管路切换单元用于切换所述制氧单元或所述外部供氧接口供应氧气。
  2. 根据权利要求1所述的高流量氧疗仪,其特征在于,所述高流量氧疗仪还包括主控单元,所述主控单元分别与所述制氧单元和所述管路切换单元电连接,所述主控单元用于控制所述管路切换单元的切换以实现对氧源的选择,所述主控单元用于控制所述制氧单元制造氧气。
  3. 根据权利要求2所述的高流量氧疗仪,其特征在于,所述氧疗仪还包括传感器,所述传感器与所述主控单元电连接,所述传感器用于检测所述外部氧源的供氧情况并生成信号发送给所述主控单元,所述主控单元根据所述信号判断所述外部氧源的供氧情况。
  4. 根据权利要求3所述的高流量氧疗仪,其特征在于,当所述主控单元判定所述外部氧源已供氧,则所述主控单元指令所述管路切换单元连通至所述外部供氧接口;当所述主控单元判定所述外部氧源未供氧,所述主控单元指令所述管路切换单元连通至所述制氧单元。
  5. 根据权利要求1至4任一项所述的高流量氧疗仪,其特征在于,所述高流量氧疗仪还包括空氧处理组件,所述空氧处理组件用于接收空气和氧气并产出适用于患者的气体,其中,所述空氧处理组件接收的氧气来自所述管路切换单元。
  6. 根据权利要求5所述的高流量氧疗仪,其特征在于,所述空氧处理组件包括空氧比例调节单元,所述空氧比例调节单元与所述管路切换单元连通, 所述空氧比例调节单元接收空气和来自于所述管路切换单元的氧气,所述空氧比例调节单元用于调节空气和氧气的比例,并输出特定浓度的空氧混合气体。
  7. 根据权利要求6所述的高流量氧疗仪,其特征在于,所述空氧处理组件包括空氧混合单元,所述空氧混合单元与所述空氧比例调节单元连通,所述空氧混合单元接收来自所述空氧比例调节单元的所述空氧混合气体,所述空氧混合单元将所述空氧混合气体中的氧气和空气混合均匀。
  8. 根据权利要求6或7任一项所述的高流量氧疗仪,其特征在于,所述空氧处理组件包括空氧压缩单元和湿化单元,所述空氧压缩单元与所述空氧混合单元连通,接收并压缩来自所述空氧混合单元的所述空氧混合气体;所述湿化单元与所述空氧压缩单元连通,接收并加湿来自所述空氧压缩单元的所述空氧混合气体。
  9. 根据权利要求6所述的高流量氧疗仪,其特征在于,所述高流量氧疗仪包括过滤单元,所述过滤单元分别与所述制氧单元和所述空氧比例调节单元连通,所述过滤单元接收空气并对空气进行净化过滤,所述过滤单元将净化后的空气分别输送给所述制氧单元和所述空氧比例调节单元。
  10. 根据权利要求8任一项所述的高流量氧疗仪,其特征在于,所述主控单元与所述空氧比例调节单元、所述空氧混合单元、所述空氧压缩单元和所述湿化单元中的至少一个电连接。
PCT/CN2021/070350 2021-01-05 2021-01-05 高流量氧疗仪 WO2022147663A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/070350 WO2022147663A1 (zh) 2021-01-05 2021-01-05 高流量氧疗仪

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/070350 WO2022147663A1 (zh) 2021-01-05 2021-01-05 高流量氧疗仪

Publications (1)

Publication Number Publication Date
WO2022147663A1 true WO2022147663A1 (zh) 2022-07-14

Family

ID=82357083

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/070350 WO2022147663A1 (zh) 2021-01-05 2021-01-05 高流量氧疗仪

Country Status (1)

Country Link
WO (1) WO2022147663A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202061051U (zh) * 2011-01-26 2011-12-07 韩雪海 一种携氧中西药蒸汽治疗仪
KR101138310B1 (ko) * 2011-12-30 2012-04-25 주식회사 산청 자급식 산소호흡기
CN104891446A (zh) * 2015-05-22 2015-09-09 北京怡德发电子有限公司 一种空气压缩制氧装置和制氧机
CN204752201U (zh) * 2015-05-22 2015-11-11 北京怡德发电子有限公司 一种空气压缩制氧装置和制氧机
CN210844771U (zh) * 2019-07-15 2020-06-26 丁威 一种内科临床用的呼吸装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202061051U (zh) * 2011-01-26 2011-12-07 韩雪海 一种携氧中西药蒸汽治疗仪
KR101138310B1 (ko) * 2011-12-30 2012-04-25 주식회사 산청 자급식 산소호흡기
CN104891446A (zh) * 2015-05-22 2015-09-09 北京怡德发电子有限公司 一种空气压缩制氧装置和制氧机
CN204752201U (zh) * 2015-05-22 2015-11-11 北京怡德发电子有限公司 一种空气压缩制氧装置和制氧机
CN210844771U (zh) * 2019-07-15 2020-06-26 丁威 一种内科临床用的呼吸装置

Similar Documents

Publication Publication Date Title
JP5995867B2 (ja) 送風機を統合させた人工呼吸器
CN212973802U (zh) 一种用于医院和家庭环境的多功能呼吸治疗系统
CN110314268A (zh) 一种可雾化给药的医用呼吸机
WO2021248581A1 (zh) 空气和氧气混合监测的湿化治疗仪及其监测方法
CN107308531B (zh) 呼吸机及其多功能吸气阀
CN103736182A (zh) 一种呼吸机
CN112618896A (zh) 高流量氧疗仪
CN204484979U (zh) 一种具有气体质量改善功能的呼吸机
WO2022147663A1 (zh) 高流量氧疗仪
CN215916039U (zh) 高流量氧疗仪
CN211157920U (zh) 一种新型呼吸机
CN209611941U (zh) 一种口腔加温湿化装置
CN206534965U (zh) 一种呼吸机
CN114768020A (zh) 经鼻高流量湿化氧疗无创通气设备、控制方法及控制系统
EP4119176A1 (en) Respiratory ventilation system and method
CN114939212A (zh) 一种人机同步呼吸装置
JP2018079325A (ja) 患者に人工呼吸を施すシステム
CN210020707U (zh) 一种便携式制氧正压通气治疗机
WO2021134374A1 (zh) 医用通气系统
JP4606655B2 (ja) 呼吸用気体供給装置
CN213252335U (zh) 一种供氧装置
CN219921789U (zh) 一种高流量呼吸湿化治疗仪
CN208097098U (zh) 呼吸机及其多功能吸气阀
CN220588726U (zh) 氧浓度检测装置
CN203694300U (zh) 一种呼吸机

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: 21916721

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: 21916721

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 01.02.2024)