CN110464936A - Breathing Suppotion equipment anti-dry monitoring method - Google Patents

Breathing Suppotion equipment anti-dry monitoring method Download PDF

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Publication number
CN110464936A
CN110464936A CN201910746014.0A CN201910746014A CN110464936A CN 110464936 A CN110464936 A CN 110464936A CN 201910746014 A CN201910746014 A CN 201910746014A CN 110464936 A CN110464936 A CN 110464936A
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CN
China
Prior art keywords
breathing suppotion
absolute humidity
suppotion equipment
value
monitoring method
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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
CN201910746014.0A
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Chinese (zh)
Inventor
戴征
李青夏
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Hunan Micomme Zhongjin Medical Technology Development Co Ltd
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Hunan Micomme Zhongjin Medical Technology Development Co Ltd
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Priority to CN201910746014.0A priority Critical patent/CN110464936A/en
Publication of CN110464936A publication Critical patent/CN110464936A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes operated by electrical means
    • A61M16/022—Control means therefor
    • A61M16/024—Control means therefor including calculation means, e.g. using a processor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/16—Devices to humidify the respiration air
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/18—General characteristics of the apparatus with alarm
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3368—Temperature

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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)
  • Air Conditioning Control Device (AREA)

Abstract

The present invention provides a kind of Breathing Suppotion equipment anti-dry monitoring method, includes the following steps: S1, after Breathing Suppotion equipment air outlet temperature reaches Breathing Suppotion equipment preset value, acquires N number of real-time gas absolute humidity values at interval of time △ T and forms array H；S2, t-th of array H is obtainedtThe absolute humidity average value of middle absolute humidity values, is denoted as ft；S3, judge absolute humidity average value ftWith absolute humidity setting value f0Size；The absolute humidity mean variation amount △ f of adjacent two arrays of S4, time in counting period △ T-phase；S5, judge absolute humidity mean variation amount △ f whether less than 0.Compared with the relevant technologies, Breathing Suppotion equipment anti-dry monitoring method monitoring accuracy provided by the invention is higher, cost is lower and monitoring efficiency is higher.

Description

Breathing Suppotion equipment anti-dry monitoring method
Technical field
The present invention relates to the field of medical instrument technology more particularly to a kind of Breathing Suppotion equipment anti-dry monitoring methods.
Background technique
For the comfort for improving user's assisted ventilation, as ventilator etc Breathing Suppotion equipment using humidifying water box to exhaling The gas for inhaling holding equipment output carries out warming humidification.In the prior art, there are three types of the detection modes of humidifying water box water level: one Be in humidifying water box install water level sensor carry out water level detecting, this detection mode is more intuitive, but will increase hardware at Calibration steps after sheet, corresponding hardware installation step and hardware installation；The second is passing through acquisition humidifying water box bottom-heated The temperature variation data of plate is detected, and this detection mode saves hardware cost and installs accordingly, calibration steps, but because Larger for the heating plate different location temperature difference, temperature data acquisition and calibration are complicated, cause detection algorithm complicated, and because heating There are durations for the temperature change of plate, will lead to judgement lag in such a way that temperature of heating plate variation is detected；The third is The water level detecting that Temperature Humidity Sensor based on the Temperature Humidity Sensor at Breathing Suppotion equipment air inlet and at gas outlet carries out, It is compared by the humidity at air inlet and air outlet, it can be determined that whether the water level for going out humidifying water box is too low, but also needs to increase Calibration steps if Temperature Humidity Sensor, after needing to increase hardware installation step and installation.
Therefore, it is necessary to provide, a kind of new monitoring accuracy is higher, cost is lower and the higher Breathing Suppotion of monitoring efficiency Equipment anti-dry monitoring method overcomes above-mentioned technical problem.
Summary of the invention
For the problems of the prior art, the present invention is intended to provide a kind of monitoring accuracy is higher, cost is lower and monitoring effect The higher Breathing Suppotion equipment anti-dry monitoring method of rate.
The present invention provides a kind of Breathing Suppotion equipment anti-dry monitoring method, includes the following steps:
S1, after Breathing Suppotion equipment air outlet temperature reaches Breathing Suppotion equipment preset value, at interval of time △ T acquire N number of real-time gas absolute humidity values form array H, remember H=(H1,H2,H3…,HN-1,HN)；
S2, t-th of array H is obtainedtThe absolute humidity average value of middle absolute humidity values, is denoted as ft；
If S3, ft≥f0, then perform the next step suddenly, wherein f0For the preset output temperature of Breathing Suppotion equipment, it is relatively wet Degree is greater than or equal to absolute humidity values corresponding when 75%, otherwise judges humidifying water box water shortage, is prompted；
S4, according to △ f=ft-ft-1The absolute humidity mean variation amount △ of adjacent two arrays of time in counting period △ T-phase f；
If S5, △ f < 0 judge that water level is too low, are prompted；Otherwise S1 is executed.
Preferably, in the step S1, real-time gas absolute humidity values HiIt is acquired by Temperature and Humidity unit.
Preferably, the Temperature and Humidity unit includes humidity sensor, temperature sensor and low-pass filter.
Preferably, the Breathing Suppotion equipment anti-dry monitoring method absolute humidity average value ftIt is average according to median Filter method, clipping average filter method or Weighted Recursive average filter method obtain after carrying out smothing filtering.
Preferably, the step S2 includes:
S21, removal array HtIn maximum value and minimum value, obtain absolute humidity sampled value median array X, remember X= (X1,X2,X3…,XN-3,XN-2)；
S22, basisThe average value of absolute humidity sampled value median array X is calculated, is obtained absolute Humidity average value ft, wherein Xi is the element value in the median array X of absolute humidity sampled value.
Preferably, the Breathing Suppotion equipment anti-dry monitoring method further include: S6, compare absolute humidity mean variation Whether amount △ f absolute value is greater than or equal to the preset variable quantity threshold value △ f of Breathing Suppotion equipment0, if so, judging humidifying water box Water shortage issues prompt information, on the contrary then execute S1.
Preferably, in the Breathing Suppotion equipment anti-dry monitoring method step S6, judging humidifying water box water shortage, issuing It further include stopping the work of humidifying water box after prompt information.
Preferably, in the Breathing Suppotion equipment anti-dry monitoring method step S3, judging humidifying water box water shortage, sending out It further include stopping the work of humidifying water box out after prompt information.
Compared with prior art, the present invention provides Breathing Suppotion equipment anti-dry monitoring method, is not necessarily to additionally mounted setting Water level sensor is set there are no that need to design complicated algorithm using Breathing Suppotion without additionally mounted setting Temperature Humidity Sensor Real-time anti-dry monitoring can be realized in the standby component being equipped with itself, and monitoring accuracy is higher；Hardware cost is saved, cost is lower； The Installation And Calibration step of related hardware is saved, and in contrast algorithm is more simple, so that monitoring efficiency is higher.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects It encloses.
The present invention provides a kind of Breathing Suppotion equipment anti-dry monitoring method, the method is related to Breathing Suppotion equipment. In present embodiment, the Breathing Suppotion equipment include power supply unit, Temperature and Humidity unit, central control unit, heating it is wet Change unit, operation storage unit and man-machine interaction unit.
The power supply unit is for providing stable operating voltage and electric current to each unit.
The Temperature and Humidity unit is used to detect the temperature value and absolute humidity values from the humidifying water box output gas.
The central control unit is used to receive the humidifying water box output gas that the Temperature and Humidity unit detects The temperature value and absolute humidity values of body, the set information for receiving the man-machine interaction unit, and control the heating humidification unit With the operation storage unit.
The water and humidifying that the warming humidification unit is used to heat in the humidifying water box enter the gas in humidifying water box To form the humidified gas conveyed to user.
The data that the operation storage unit is used to acquire the Temperature and Humidity unit are handled.
The man-machine interaction unit is mainly used for inputting setting information, exports the detection letter of the Temperature and Humidity unit The operating status and prompt information of breath, Breathing Suppotion equipment.
In present embodiment, the Breathing Suppotion equipment Temperature and Humidity unit includes the humidity for being encapsulated as an entirety Sensor, temperature sensor and low-pass filter.The humidity sensor exports humidified gas for acquiring heating humidification unit Absolute humidity values, one end with heating humidification unit connect, the other end is connect with low-pass filter；The temperature sensor is used In acquisition heating humidification unit output humidified gas temperature value, one end with heat humidification unit connect, the other end with it is low Bandpass filter connection；Low-pass filter, for filtering out High-frequency Interference, and by temperature and humidity information conveyance to central processing unit, One end is connect with the humidity sensor and the temperature sensor, and the other end is connect with the central control unit.
In present embodiment, the warming humidification unit includes heating plate, heater circuit and humidifying water box.The heating electricity Road is used to provide operating voltage for the heating plate, and one end is connect with the central control unit, the other end and the heating Plate connection；The heating plate is used to heat water in the humidifying water box, and one end is connect with the heater circuit, the other end and The humidifying water box connection；The humidifying water box enter the gas in the humidifying water box for humidifying, and one end adds with described Hot plate connection, the other end are connect with patient interface.
In present embodiment, the operation storage unit includes computing module and memory module.The computing module is used for The humidity value and temperature value of central control unit output are calculated, and absolute humidity average value and absolute humidity variable quantity are stored In memory module, one end is connect with the central control unit, and the other end is connect with the memory module；The memory module For storing the humidity information and temperature information that the computing module is calculated.
In present embodiment, the man-machine interaction unit includes key, display screen, indicator light and voice module.It is described to press The open and close of Breathing Suppotion equipment that key can be used for controlling water shortage monitoring device and connect with water shortage monitoring device, pass through The man-machine interaction unit is connect with the central control unit；The display screen is for showing water shortage monitoring device and and water shortage The working condition of the Breathing Suppotion equipment of monitoring device connection, the including but not limited to temperature value of output gas, output gas Absolute humidity values, monitoring device work at present duration, maximal humidity variable quantity, prompt information, pass through the human-computer interaction list It is first to be connect with the central control unit；The indicator light is used for light prompt, when output gas temperature and humidity value occurs abnormal, Interruption flashing, issues prompt information, is connect by the man-machine interaction unit with the central control unit；The voice mould Block is for issuing speech prompt information, and after monitoring humidifying water box water shortage, voice prompting medical staff adds water, by described Man-machine interaction unit is connect with the central control unit.
Breathing Suppotion equipment anti-dry monitoring method provided by the invention, includes the following steps:
S1, after Breathing Suppotion equipment air outlet temperature reaches Breathing Suppotion equipment preset value, at interval of time △ T acquire N number of real-time gas absolute humidity values form array H, remember H=(H1,H2,H3…,HN-1,HN).Specifically, △ T is advisable with 1-10s, N is advisable with 4-10, but is not limited thereto, and can be specifically adjusted according to actual needs.
S2, t-th of array H is obtainedtThe absolute humidity average value of middle absolute humidity values, is denoted as ft。
If S3, ft≥f0, then perform the next step suddenly, wherein f0For the preset output temperature of Breathing Suppotion equipment, it is relatively wet Degree is greater than or equal to absolute humidity values corresponding when 75%；Otherwise judge humidifying water box water shortage, prompted；
S4, according to △ f=ft-ft-1The absolute humidity mean variation amount △ of adjacent two arrays of time in counting period △ T-phase f；
If S5, △ f < 0 judge that water level is too low, are prompted；Otherwise S1 is executed.
Specifically, f0Equipment preset value when starting to treat for Breathing Suppotion equipment, common setting value are 29~32mg/L.
In step S2, can be used middle position average filter method, clipping average filter method or Weighted Recursive average filter method into Absolute humidity average value f is obtained after row smothing filteringt。
Specifically, the step S2 of the Breathing Suppotion equipment anti-dry monitoring method includes:
S21, removal array HtIn maximum value and minimum value, obtain absolute humidity sampled value median array X, remember X= (X1,X2,X3…,XN-3,XN-2)；
S22, basisThe average value of absolute humidity sampled value median array X is calculated, is obtained absolute Humidity average value ft, wherein Xi is the element value in the median array X of absolute humidity sampled value.It is hereby achieved that subject to more True ft, further promote the monitoring accuracy of the method.
Specifically, the Breathing Suppotion equipment anti-dry monitoring method further include: S6, compare absolute humidity mean variation Whether amount △ f absolute value is greater than or equal to the preset variable quantity threshold value △ f of Breathing Suppotion equipment0: if so, judging humidifying water box Water shortage issues prompt information, on the contrary then execute S1.There, it is introduced to further monitoring mechanism, in the humidifying water box Water level is by the too low status monitoring of water level to the state of the humidifying water box water shortage, and double monitoring, dual prompt, monitoring accuracy is more Accurately, it effectively prevent dry combustion method.
More specifically, in the Breathing Suppotion equipment anti-dry monitoring method step S6, judging humidifying water box water shortage, It further include stopping the work of humidifying water box after issuing prompt information.So as to stop by the power supply for disconnecting the heater circuit The heating plate work, prevents dry combustion method.
More specifically, in the Breathing Suppotion equipment anti-dry monitoring method step S3, judging that humidifying water box are scarce Water further includes stopping the work of humidifying water box after issuing prompt information.Dry combustion method can equally be prevented.
It is worth noting that, can when judging that the humidifying water box water level is too low or judges the humidifying water box water shortage It is prompted, in present embodiment, the seriousness of this state of humidifying water box water shortage is greater than the humidifying water box water level mistake This low state when the man-machine interaction unit is prompted, can be distinguished accordingly, embody the difference of seriousness, for example, When judging the humidifying water box water shortage, the prompt tone issued when prompt tone is than judging that the humidifying water box water level is too low is more sharp It is sharp, also by the differentiation of both states, double monitoring is realized, has not only improved the precision of monitoring, but also improves the effect of monitoring Rate has also ensured the effect of monitoring.
Compared with prior art, Breathing Suppotion equipment anti-dry monitoring method provided by the invention, sets without additionally mounted Water level sensor is set, utilizes Breathing Suppotion there are no complicated algorithm need to be designed without additionally mounted setting Temperature Humidity Sensor Real-time anti-dry monitoring can be realized in the component that equipment itself is equipped with, and monitoring accuracy is higher；Hardware cost is saved, cost is more It is low；The Installation And Calibration step of related hardware is saved, and in contrast algorithm is more simple, so that monitoring efficiency is higher.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks Domain is included within the scope of the present invention.

Claims (8)

1. a kind of Breathing Suppotion equipment anti-dry monitoring method, which comprises the steps of:
S1, after Breathing Suppotion equipment air outlet temperature reaches Breathing Suppotion equipment preset value, at interval of time △ T acquire it is N number of Real-time gas absolute humidity values form array H, remember H=(H1,H2,H3…,HN-1,HN)；
S2, t-th of array H is obtainedtThe absolute humidity average value of middle absolute humidity values, is denoted as ft；
If S3, ft≥f0, then perform the next step suddenly, wherein f0For the preset output temperature of Breathing Suppotion equipment, its relative humidity is big Otherwise corresponding absolute humidity values when 75% judge humidifying water box water shortage, are prompted；
S4, according to △ f=ft-ft-1The absolute humidity mean variation amount △ f of adjacent two arrays of time in counting period △ T-phase；
If S5, △ f < 0 judge that water level is too low, are prompted；It is on the contrary then execute S1.
2. Breathing Suppotion equipment anti-dry monitoring method as described in claim 1, which is characterized in that the real-time gas is absolutely wet Angle value HiIt is acquired by Temperature and Humidity unit.
3. Breathing Suppotion equipment anti-dry monitoring method as claimed in claim 2, which is characterized in that the Temperature and Humidity unit Including humidity sensor, temperature sensor and low-pass filter.
4. Breathing Suppotion equipment anti-dry monitoring method according to claim 1, which is characterized in that absolute humidity average value ftIt is obtained after carrying out smothing filtering according to the way of median average filter, clipping average filter method or Weighted Recursive average filter method.
5. Breathing Suppotion equipment anti-dry monitoring method according to claim 4, which is characterized in that the step S2 packet It includes: S21 and removes array HtMiddle maxima and minima obtains the median array X of relative humidity sampled value, remembers X=(X1,X2, X3…,XN-3,XN-2), S22: according to,The average value of median array X is calculated, it is flat to obtain absolute humidity Mean value ft, wherein Xi is the element value in the median array X of absolute humidity sampled value.
6. Breathing Suppotion equipment anti-dry monitoring method according to claim 1, which is characterized in that the method is also wrapped It includes: S6, comparing whether absolute humidity mean variation amount △ f absolute value is greater than or equal to the preset variable quantity of Breathing Suppotion equipment Threshold value △ f0, if so, judge humidifying water box water shortage, issue prompt information, it is on the contrary then execute S1.
7. Breathing Suppotion equipment anti-dry monitoring method according to claim 6, which is characterized in that in the step S6, Judging humidifying water box water shortage, is further including stopping the work of humidifying water box after issuing prompt information.
8. Breathing Suppotion equipment anti-dry monitoring method according to claim 1, which is characterized in that in the step S3, Judging humidifying water box water shortage, is further including stopping the work of humidifying water box after issuing prompt information.
CN201910746014.0A 2019-08-13 2019-08-13 Breathing Suppotion equipment anti-dry monitoring method Pending CN110464936A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111375107A (en) * 2020-01-19 2020-07-07 湖南明康中锦医疗科技发展有限公司 Water level monitoring system and method for water tank of respiratory support equipment and respiratory support equipment
CN113418728A (en) * 2021-05-31 2021-09-21 深圳市科曼医疗设备有限公司 Method, device and equipment for detecting dry-burning state of humidifying equipment and storage medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111375107A (en) * 2020-01-19 2020-07-07 湖南明康中锦医疗科技发展有限公司 Water level monitoring system and method for water tank of respiratory support equipment and respiratory support equipment
CN113418728A (en) * 2021-05-31 2021-09-21 深圳市科曼医疗设备有限公司 Method, device and equipment for detecting dry-burning state of humidifying equipment and storage medium

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