WO2012089093A1 - 一种呼吸设备堵塞的监测方法及装置 - Google Patents

一种呼吸设备堵塞的监测方法及装置 Download PDF

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Publication number
WO2012089093A1
WO2012089093A1 PCT/CN2011/084700 CN2011084700W WO2012089093A1 WO 2012089093 A1 WO2012089093 A1 WO 2012089093A1 CN 2011084700 W CN2011084700 W CN 2011084700W WO 2012089093 A1 WO2012089093 A1 WO 2012089093A1
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Prior art keywords
respiratory device
monitoring
pressure
respiratory
expiratory
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PCT/CN2011/084700
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English (en)
French (fr)
Inventor
李治
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北京谊安医疗系统股份有限公司
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Priority to BR112012032963A priority Critical patent/BR112012032963A2/pt
Publication of WO2012089093A1 publication Critical patent/WO2012089093A1/zh

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    • 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
    • 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
    • A61M16/08Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0875Connecting 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
    • 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
    • A61M2205/70General characteristics of the apparatus with testing or calibration facilities

Definitions

  • the invention belongs to the field of medical equipment, and relates to a monitoring method and device for clogging a respiratory device. Background technique
  • the ventilator has become a routine medical device and is widely used in various clinical emergency and intensive care units. However, since the ventilator is a rescue device and has its own special factors, it is often prone to problems during clinical practice. The daily maintenance of the machine is particularly important. In the absence of corresponding testing equipment, the ventilator needs to fully utilize its own detection function, find problems in time, and effectively solve the problem to ensure that the ventilator is in optimal working condition when it is used. . At present, there are some high-end breathing equipment on the market, and some models have clogging alarms. However, there is no information or patent mention for the monitoring method of the specific location of the blockage. Thus, when the enterprise producing the breathing equipment needs to open the clogging alarm function. There is no technical and experimental basis.
  • An object of the present invention is to provide a monitoring method and apparatus for clogging a respiratory device for solving the problem of not being able to accurately determine the occlusion position of the ventilator in the shortest possible time in the prior art.
  • a monitoring method for clogging of a respiratory device comprising: a: detecting a pressure and a flow rate of an inhalation end and an exhalation end of the respiratory device; and b: The pressure and flow are calculated, and the blocked position of the breathing apparatus is confirmed based on the calculation result.
  • step a includes: separately detecting the inhalation end and the exhalation end of the respiratory device Pressure and flow.
  • the monitoring method of the clogging of the respiratory device further comprises: verifying that the error of the pressure and the flow rate is within a preset range before the normal ventilation.
  • the preset range includes: the pressure and the flow rate can be collected to data within a time equal to or less than a fixed time.
  • the step b includes: acquiring respiratory tube blockage information of the respiratory device; acquiring an exhaust port of the respiratory device and blockage information of the external device; and acquiring blockage information of the air channel of the user end of the respiratory device .
  • the breathing pipe blockage information is obtained by judging whether the pressure difference between the inhalation end and the exhalation end of the breathing apparatus within a fixed time period exceeds a preset range; if so, it is confirmed that the breathing pipe is blocked.
  • venting information of the exhaust port and the external device determines whether the expiratory positive pressure PEEP of the respiratory device exceeds a preset value; and whether the expiratory tidal volume and the inspiratory tidal volume of the respiratory device are If the preset value is exceeded within the set value; if yes, confirm that the exhaust port and the external device are blocked.
  • the inspiratory tidal volume is obtained by calculating a difference between an inspiratory flow rate and an expiratory flow rate in the inhalation phase; the exhaled tidal volume is obtained by calculating a difference between the expiratory flow rate and the inspiratory flow rate in the exhalation phase .
  • the congestion information of the airway of the user end is obtained by determining whether the minute ventilation of the respiratory device is lower than a preset value, and if so, confirming that the airway of the user end is blocked.
  • Another object of the present invention is to provide a monitoring device for clogging a respiratory device, the monitoring device for clogging the respiratory device comprising: a calibration module for verifying that the error of the pressure and flow is within a preset range before normal ventilation a detecting module, configured to detect a pressure of an inhalation end and an exhalation end of the respiratory device a force and a flow rate; and a calculation module for calculating the pressure and the flow rate, and confirming the blocked position of the respiratory device according to the calculation result.
  • the calculation module includes: an acquisition module, configured to acquire respiratory tube blockage information of the respiratory device; acquire an exhaust port of the respiratory device and blockage information of an external device; and acquire a user end of the respiratory device a blockage information of the airway; and a judging module, configured to determine whether a pressure difference between the inhalation end and the exhalation end of the respiratory device exceeds a preset range within a fixed time period; determining that the respiratory device is not expiratory pressure Whether the PEEP exceeds a preset value; and whether the expiratory tidal volume and the inspiratory tidal volume of the respiratory device exceed a preset range within a fixed time period; and whether the minute ventilation of the respiratory device is lower than a preset value.
  • the determining module includes: an confirming module, configured to confirm a blocked position of the respiratory device.
  • the beneficial effects of the present invention are: Providing a practical and feasible method and device for judging the occlusion of a respiratory device, which can determine the respiratory tract, the user's airway, and the exhaust gas in the shortest possible time. Blockage at the end.
  • FIG. 1 is a main flow chart of a method for monitoring clogging of a respiratory device according to an embodiment of the present invention
  • FIG. 2 is an application implementation of a method for monitoring clogging of a respiratory device on the respiratory device according to an embodiment of the invention
  • FIG. 3 is a schematic structural view of a monitoring device for clogging a respiratory device according to an embodiment of the invention.
  • the respiratory device host -201 monitor display-203, inspiratory port-205, inspiratory pressure sensing -207, inspiratory flow sensor-209, inspiratory line-211, user airway-213, analog client-215, exhalation port- 217 , exhaust end-219, expiratory pressure sensor-223, call Air flow sensor -221, exhalation pipe -225.
  • the invention is directed to the detection problem of the blocked position of the respiratory device, and proposes a monitoring method and device for the blockage of the respiratory device, and specifically describes an embodiment of the monitoring method and device for controlling the blockage of the respiratory device:
  • a method for monitoring clogging of a respiratory device includes:
  • a detecting the pressure and flow of the inspiratory end and the expiratory end of the respiratory device
  • a monitoring display 203 is disposed on the respiratory device host 201, and an inspiratory pressure sensor 207 is installed on the inhalation port 205 of the respiratory device.
  • the inspiratory flow sensor 209, the airflow direction enters the analog user terminal 215 along the Y-shaped tee of the user airway 213 along the inhalation duct 211; on the other side of the respiratory device host 201, the exhalation of the respiratory device
  • An expiratory pressure sensor 223 and an expiratory flow sensor 221 are disposed on the exhaust end 219 of the port 217, and the airflow direction enters the analog user end 215 along the exhalation duct 225 via the Y-type tee of the user end air passage 213.
  • the data measured by the inspiratory pressure sensor 207, the inspiratory flow sensor 209, and the expiratory pressure sensor 223 and the expiratory flow sensor 221 are in error under the same pressure and flow rate conditions.
  • the inspiratory tidal volume and the expiratory tidal volume and the minute ventilation amount of the user can be obtained by calculating the data of the above sensor, wherein the inspiratory tidal volume is calculated as the inhalation phase inspiratory flow sensor 209 and the expiratory flow. Sensor 221 measures the difference in flow.
  • the expiratory tidal volume is calculated as the difference between the measured flow rate of the expiratory flow sensor 221 and the inspiratory flow sensor 209 during the expiratory phase.
  • the minute ventilation amount is calculated by dividing the accumulated value of the inspiratory tidal volume which is a small value of the past 8 breaths or the number of breaths of 1 minute into the ventilation amount of 1 minute.
  • the technical solution can monitor three aspects of blockage, including: blockage of the breathing pipe, blockage of the exhaust port and its external devices, and blockage of the airway of the user end.
  • the pressure at both ends of the blocked pipe may be different during normal breathing, and the pressure at both ends of the blocked pipe may be measured by the inspiratory pressure sensor 207 and the expiratory pressure sensor 223, respectively.
  • the pressure difference of the pressure sensors is compared, and the pipe blockage is considered to occur continuously over a certain period of time.
  • the inspiratory tidal volume When the airway of the user end is blocked, if it is in the tolerance mode, the inspiratory tidal volume will be less than the set value. For the pressure control mode, the inspiratory tidal volume will be relatively small, so the user can be used with the feature of low tidal volume. End airway blockage judgment. The user's breath holding, inhalation, coughing, etc. can also cause a single inhalation The above phenomenon occurs in tidal volume. In order to prevent false alarms, it is necessary to judge the tidal volume of multiple breaths. That is, when the tidal volume of multiple breaths is lower than a certain value, it is considered that the airway of the user end is blocked, and the actual use of minute ventilation is performed. Judge.
  • the duct is considered to be blocked.
  • the time from blockage to judging the blockage does not exceed 200ms; when it is judged that the exhaust end is blocked, when the actual positive end expiratory pressure is 10cmH2O higher than the user-set end-expiratory positive pressure, and the expiratory tidal volume is less than the inspiratory tidal volume 50% is considered to be blocked at the exhaust end.
  • a monitoring device for clogging a respiratory device includes: a verification module 301, Verifying that the pressure and flow rate errors are within a predetermined range prior to normal ventilation; a detection module 303 for detecting pressure and flow of the inspiratory end and the expiratory end of the respiratory device; and a calculation module 305 for The pressure and flow rate are calculated, and the blocked position of the respiratory device is confirmed based on the calculation result.
  • the calculation module 305 includes: an acquisition module 3051, configured to acquire respiratory tube blockage information of the respiratory device; acquire an exhaust port of the respiratory device and blockage information of an external device; and acquire a user end gas of the respiratory device And a judging module 3052, configured to determine whether a pressure difference between the inhalation end and the exhalation end of the respiratory device exceeds a preset range within a fixed time period; determining that the respiratory device is not expiratory pressure Whether the PEEP exceeds a preset value; and whether the expiratory tidal volume and the inspiratory tidal volume of the respiratory device exceed a preset range within a fixed time period; and whether the minute ventilation of the respiratory device is lower than a preset value.
  • the determining module 3052 includes: a confirmation mode A block (not shown) for confirming the blocked position of the breathing apparatus.
  • the breathing apparatus clogging judging method and apparatus provided by the technical solution can judge the clogging occurring in the breathing duct, the user end air passage, and the exhaust end in the shortest possible time.

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  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Description

一种呼吸设备堵塞的监测方法及装置 技术领域
本发明属于医疗设备领域, 涉及一种呼吸设备堵塞的监测方法及装置。 背景技术
呼吸机已经成为常规医疗设备, 被普遍应用于各临床的急救和重症监护病 房中, 但是由于呼吸机属于抢救设备, 有其自身的特殊因素, 往往在临床的时 候容易出现问题, 因此, 对于呼吸机在日常上的维护显得格外重要, 在没有相 应的检测设备的情况下, 呼吸机需要充分发挥自身检测功能, 及时发现问题, 有效解决问题, 以确保呼吸机在使用的时候处于最佳工作状态。 目前市场上高 端的呼吸设备, 有的机型已经有堵塞报警, 然而对于堵塞的具体位置的监测方 法, 却没有任何资料或专利提及, 这样, 当生产呼吸设备的企业需要开设堵塞 报警功能时, 就没有技术和试验依据。
现有技术中, 对于呼吸机在尽可能短的实际内准确判断堵塞位置的问题, 尚没有有效的解决方案。
发明内容
本发明的目的是提出一种呼吸设备堵塞的监测方法及装置, 用于解决现有 技术中不能在尽可能短的时间内准确判断呼吸机的堵塞位置的问题。
为了实现上述目的之一, 本发明采用以下技术方案: 一种呼吸设备堵塞的 监测方法, 包括: a: 检测所述呼吸设备的吸气端和呼气端的压力和流量; 以及 b: 根据所述压力和流量进行计算, 并根据计算结果确认所述呼吸设备的堵塞位 置。
进一步地, 所述步骤 a 包括: 分别检测所述呼吸设备的吸气端和呼气端的 压力和流量。
进一步地, 在所述步骤 a之前, 所述呼吸设备堵塞的监测方法还包括: 在 正常通气前校验所述压力和流量的误差在预设范围内。
进一步地, 所述预设范围包括: 所述压力和流量在小于或等于定值时间内 能够被采集到数据。
进一步地, 所述步骤 b 包括: 获取所述呼吸设备的呼吸管道堵塞信息; 获 取所述呼吸设备的排气端口以及外接器件的堵塞信息; 以及获取所述呼吸设备 的用户端气道的堵塞信息。
进一步地, 所述呼吸管道堵塞信息通过判断所述呼吸设备在定值时间内的 吸气端和呼气 端的压力差值是否超出预设范围得出; 若是, 确认所述呼吸管道 出现堵塞。
进一步地, 所述排气端口以及外接器件的堵塞信息通过判断所述呼吸设备 的呼气未正压 PEEP是否超过预设值; 以及所述呼吸设备的呼气潮气量和吸气 潮气量是否在定值时间内超出预设范围得出; 若是, 确认所述排气端口以及外 接器件出现堵塞。
进一步地, 所述吸气潮气量通过计算吸气阶段的吸气流量和呼气流量的差 值得出;所述呼气潮气量通过计算呼气阶段的呼气流量和吸气流量的差值得出。
进一步, 所述用户端气道的堵塞信息通过判断所述呼吸设备的分钟通气量 是否低于预设值得到, 若是, 确认所述用户端气道出现堵塞。
进一步, 所述分钟通气量通过预设定值时间内最小吸气潮气量计算得出。 本发明的另外一个目的是提供一种呼吸设备堵塞的监测装置, 所述呼吸设 备堵塞的监测装置包括: 校验模块, 用于在正常通气前校验所述压力和流量的 误差在预设范围内; 检测模块, 用于检测所述呼吸设备的吸气端和呼气端的压 力和流量; 以及计算模块, 用于根据所述压力和流量进行计算, 并根据计算结 果确认所述呼吸设备的堵塞位置。
进一步地, 所述计算模块包括: 获取模块, 用于获取所述呼吸设备的呼吸 管道堵塞信息; 获取所述呼吸设备的排气端口以及外接器件的堵塞信息; 以及 获取所述呼吸设备的用户端气道的堵塞信息; 以及判断模块, 用于判断所述呼 吸设备在定值时间内的吸气端和呼气端的压力差值是否超出预设范围; 判断所 述呼吸设备的呼气未正压 PEEP是否超过预设值; 以及所述呼吸设备的呼气潮 气量和吸气潮气量是否在定值时间内超出预设范围; 以及判断所述呼吸设备的 分钟通气量是否低于预设值。
进一步地, 所述判断模块包括: 确认模块, 用于确认所述呼吸设备的堵塞 位置。
与现有技术相比, 本发明的有益效果是: 提供了一种确实可行的呼吸设备 堵塞判断方法和装置, 能够在尽可能短的时间内判断发生在呼吸管道、 用户端 气道、 排气端的堵塞。
附图说明
此处所说明的附图用来提供对本发明型的进一步理解, 构成本申请的一部 分, 本发明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的不 当限定。 在附图中:
图 1是根据本发明实施例所述一种呼吸设备堵塞的监测方法的主要流程图; 图 2是根据本发明实施例所述一种呼吸设备堵塞的监测方法在所述呼吸设 备上的应用实施图;
图 3是根据本发明实施例所述一种呼吸设备堵塞的监测装置的结构示意图。 图中, 呼吸设备主机 -201、 监控显示器 -203、 吸气端口 -205、 吸气压力传感 器 -207、吸气流量传感器 -209、吸气管道 -211、用户端气道 -213、模拟用户端 -215、 呼气端口—217、 排气端 -219、 呼气压力传感器 -223、 呼气流量传感器 -221、 呼气 管道 -225。
具体实施方式
需要说明的是, 在不沖突的情况下, 本申请中的实施例及实施例中的特征 可以相互组合。 下面将参考附图并结合实施例来详细说明本发明。
本发明针对呼吸设备堵塞位置检测问题, 提出一种呼吸设备堵塞的监测方 法及装置, 具体介绍控所述呼吸设备堵塞的监测方法及装置的实施例:
图 1是根据本发明实施例所述一种呼吸设备堵塞的监测方法的主要流程图; 参见图 1所示, 一种呼吸设备堵塞的监测方法, 包括:
a: 检测所述呼吸设备的吸气端和呼气端的压力和流量; 以及
b: 根据所述压力和流量进行计算, 并根据计算结果确认所述呼吸设备的堵 塞位置。
将上述呼吸设备堵塞的监测方法具体应用到呼吸设备上, 如图 2所示, 在 呼吸设备主机 201上设置监控显示器 203 , 在所述呼吸设备的吸气端口 205上 安装吸气压力传感器 207和吸气流量传感器 209,气流方向沿吸气管道 211经用 户端气道 213的 Y型三通进入模拟用户端 215; 在所述呼吸设备主机 201的另 外一侧, 在所述呼吸设备的呼气端口 217的排气端 219上设置呼气压力传感器 223和呼气流量传感器 221 ,所述气流方向沿呼气管道 225经用户端气道 213的 Y型三通进入模拟用户端 215。
在正常通气前要通过校验保证在同样的压力和流速条件下, 所述吸气压力 传感器 207、 吸气流量传感器 209以及呼气压力传感器 223和呼气流量传感器 221 测得的数据都在误差精度范围内。 所述呼吸设备必须在用户呼吸时都能够 实时(< = 10ms)采集到压力和流量数据。 通过对两套传感器的采集数据进行计 算分析, 即可对呼吸设备的堵塞进行监测。 通过对上述传感器的数据计算能得 到用户的吸气潮气量和呼气潮气量以及分钟通气量, 其中, 所述吸气潮气量的 计算为吸气阶段吸气流量传感器 209与所述呼气流量传感器 221测得流量的差 值。 所述呼气潮气量的计算为呼气阶段所述呼气流量传感器 221与所述吸气流 量传感器 209测得流量的差值。 所述分钟通气量的计算为过去 8次呼吸或 1分 钟的呼吸次数取小值的所述吸气潮气量的累加值换算到 1分钟的通气量。
通过上述传感器所采集的数据进行的计算, 本技术方案可以监测三个方面 的堵塞, 包括: 呼吸管道的堵塞、 排气端口及其外接器件的堵塞、 用户端气道 的堵塞。
当所述呼吸管道发生堵塞时, 在正常呼吸时堵塞管道两端的压力就会有差 异, 而堵塞管道两端的压力可以分别用吸气压力传感器 207和呼气压力传感器 223 测量出来, 这时用两个压力传感器的压力差值进行比较, 在一段时间内连 续超过一定量即可认为出现管道堵塞。
当所述排气端口及其外接器件发生堵塞时, 在吸气阶段因为呼气阀是关闭 时, 所以不能判断是否发生堵塞, 而在呼气阶段, 呼气端需要排气, 呼气压力 需要下降到设定 PEEP值, 这时如果排气端堵塞, 则呼气压力不能下降, 而由 于用户气体没有排出, 则呼气潮气量也会小于吸入的气量, 所以当呼气末正压 超过设定值一定量, 并且呼气潮气量小于吸气潮气量一定值时即可认为出现排 气端及其外接器件堵塞。
当用户端气道发生堵塞时, 如果是容控模式, 则吸气潮气量会小于设定值, 对于压控模式, 则吸气潮气量会比较小, 所以可以通过潮气量低这个特征进行 用户端气道堵塞判断。 用户的屏气、 吸气对抗、 咳嗽等行为也会导致单次吸气 潮气量出现上述现象, 为了防止出现误报警, 需要用多次呼吸的潮气量进行判 断, 即当多次呼吸潮气量低于一定值时, 认为用户端气道发生堵塞, 实际使用 分钟通气量进行判断。
优选地, 在判断吸气管道和呼气管道堵塞时, 如果压力差超过 5cmH20即 可认为管道堵塞。 从堵塞到判断出堵塞的时间不超过 200ms; 在判断排气端堵 塞时, 当实际呼气末正压比用户设定呼气末正压高 10cmH2O, 且呼气潮气量小 于吸气潮气量的 50 %时认为是排气端堵塞。 在每次吸气开始时进行判断, 判断 时间不超过一次呼吸时间; 在判断用户端气道堵塞时, 当连续三次呼吸的吸气 潮气量 (不能是呼气, 因为呼气低可能是因为泄漏导致的)低于设定潮气量的 80 % , 认为用户端气道堵塞。 判断时间为三次呼吸的时间。 用连续三次的原因在 于防止用户吸气对抗或其它原因引起误报警。
图 3是实现上述一种呼吸设备堵塞的监测方法的装置结构示意图, 所述呼 吸设备堵塞的监测装置, 如图 3所示, 一种呼吸设备堵塞的监测装置包括: 校 验模块 301 , 用于在正常通气前校验所述压力和流量的误差在预设范围内; 检 测模块 303 , 用于检测所述呼吸设备的吸气端和呼气端的压力和流量; 以及计 算模块 305 , 用于根据所述压力和流量进行计算, 并根据计算结果确认所述呼 吸设备的堵塞位置。 所述计算模块 305包括: 获取模块 3051 , 用于获取所述呼 吸设备的呼吸管道堵塞信息; 获取所述呼吸设备的排气端口以及外接器件的堵 塞信息; 以及获取所述呼吸设备的用户端气道的堵塞信息; 以及判断模块 3052, 用于判断所述呼吸设备在定值时间内的吸气端和呼气端的压力差值是否超出预 设范围; 判断所述呼吸设备的呼气未正压 PEEP是否超过预设值; 以及所述呼 吸设备的呼气潮气量和吸气潮气量是否在定值时间内超出预设范围; 以及判断 所述呼吸设备的分钟通气量是否低于预设值。 所述判断模块 3052包括: 确认模 块 (图中未示), 用于确认所述呼吸设备的堵塞位置。
因此, 可以看出本技术方案提供的呼吸设备堵塞判断方法和装置, 能够在 尽可能短的时间内判断发生在呼吸管道、 用户端气道、 排气端的堵塞。
以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本领 域的技术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神和原则 之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之 内。

Claims

WO 2012/089093 +π ^, , _μ. PCT/CN2011/084700 权 利8要 求 书
1. 一种呼吸设备堵塞的监测方法, 其特征在于, 包括: a: 检测所述呼吸设备的吸气端和呼气端的压力和流量; 以及
b: 根据所述压力和流量进行计算, 并根据计算结果确认所述呼吸设备的堵 塞位置。
2.根据权利要求 1所述的呼吸设备堵塞的监测方法, 其特征在于, 所述步骤 a包括: 分别检测所述呼吸设备的吸气端和呼气端的压力和流量。
3.根据权利要求 2所述的呼吸设备堵塞的监测方法, 其特征在于, 所述步 骤 a之前, 还包括: 在正常通气前校验所述压力和流量的误差在预设范围内。
4.根据权利要求 3所述的呼吸设备堵塞的监测方法, 其特征在于, 所述预设范围包括: 所述压力和流量在小于或等于定值时间内能够被采集 到数据。
5.根据权利要求 1所述的呼吸设备堵塞的监测方法, 其特征在于, 所述步 骤 b包括: 获取所述呼吸设备的呼吸管道堵塞信息; 获取所述呼吸设备的排气端口以及外接器件的堵塞信息; 以及 获取所述呼吸设备的用户端气道的堵塞信息。
6.根据权利要求 5所述的呼吸设备堵塞的监测方法, 其特征在于, 气端的压力差值是否超出预设范围得出; 若是, 确认所述呼吸管道出现堵塞。
7.根据权利要求 5所述的呼吸设备堵塞的监测方法, 其特征在于, 所述排气端口以及外接器件的堵塞信息通过判断所述呼吸设备的呼气未正 压 PEEP是否超过预设值; 以及所述呼吸设备的呼气潮气量和吸气潮气量是否 在定值时间内超出预设范围得出; 若是, 确认所述排气端口以及外接器件出现堵塞。
8.根据权利要求 7所述的呼吸设备堵塞的监测方法, 其特征在于, 所述吸气潮气量通过计算吸气阶段的吸气流量和呼气流量的差值得出; 所述呼气潮气量通过计算呼气阶段的呼气流量和吸气流量的差值得出。
9.根据权利要求 5所述的呼吸设备堵塞的监测方法, 其特征在于, 所述用户端气道的堵塞信息通过判断所述呼吸设备的分钟通气量是否低于 预设值得 到, 若是, 确认所述用户端气道出现堵塞。
10. 根据权利要求 9所述的呼吸设备堵塞的监测方法,其特征在于,所述分 钟通气量通过预设定值时间内最小吸气潮气量计算得出。
11. 一种呼吸设备堵塞的监测设备, 其特征在于, 包括: 校验模块, 用于在正常通气前校验所述压力和流量的误差在预设范围内; 检测模块, 用于检测所述呼吸设备的吸气端和呼气端的压力和流量; 以及 计算模块, 用于根据所述压力和流量进行计算, 并根据计算结果确认所述 呼吸设备的堵塞位置。
12. 根据权利要求 11所述的监测设备, 其特征在于, 所述计算模块包括: 获取模块, 用于获取所述呼吸设备的呼吸管道堵塞信息; 获取所述呼吸设 备的排气端口以及外接器件的堵塞信息; 以及获取所述呼吸设备的用户端气道 的堵塞信息; 以及
差值是否超出预设范围; 判断所述呼吸设备的呼气未正压 PEEP是否超过预设 值; 以及所述呼吸设备的呼气潮气量和吸气潮气量是否在定值时间内超出预设 范围; 以及判断所述呼吸设备的分钟通气量是否低于预设值。
13. 根据权利要求 12所述的监测设备, 其特征在于, 所述判断模块包括: 确认模块, 用于确认所述呼吸设备的堵塞位置。
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