CN102266616A - Method and device for monitoring blockage of breathing equipment - Google Patents

Method and device for monitoring blockage of breathing equipment Download PDF

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Publication number
CN102266616A
CN102266616A CN2010106208359A CN201010620835A CN102266616A CN 102266616 A CN102266616 A CN 102266616A CN 2010106208359 A CN2010106208359 A CN 2010106208359A CN 201010620835 A CN201010620835 A CN 201010620835A CN 102266616 A CN102266616 A CN 102266616A
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Prior art keywords
breathing apparatus
flow
pressure
stops
breathing
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CN2010106208359A
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CN102266616B (en
Inventor
李治
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Beijing Aeonmed Co Ltd
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Beijing Aeonmed Co Ltd
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Priority to CN201010620835.9A priority Critical patent/CN102266616B/en
Publication of CN102266616A publication Critical patent/CN102266616A/en
Priority to BR112012032963A priority patent/BR112012032963A2/en
Priority to PCT/CN2011/084700 priority patent/WO2012089093A1/en
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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
    • A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes operated by electrical means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0875—Connecting tubes
    • 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
    • A61M2205/3331—Pressure; Flow
    • A61M2205/3334—Measuring or controlling the flow rate
    • 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
    • A61M2205/70—General characteristics of the apparatus with testing or calibration facilities

Abstract

The invention provides a method and a device for monitoring blockage of breathing equipment. The method for monitoring the blockage of the breathing equipment comprises the following steps of: a, detecting pressure and flow of a suction end and a breathing end of the breathing equipment; and b, performing calculation according to the pressure and the flow, and determining the blockage position of the breathing equipment according to the calculation result. The device for monitoring the blockage of the breathing equipment comprises a checking module, a detection module and a calculation module, wherein the checking module is used for checking that the errors of the pressure and the flow are in preset ranges before normal ventilation; the detection module is used for detecting the pressure and the flow of the suction end and the breathing end of the breathing equipment; and the calculation module is used for performing calculation according to the pressure and the flow and determining the blockage position of the breathing equipment according to the calculation result. The invention has the advantages that: the really feasible method and the really feasible device for judging the blockage of the breathing equipment are provided for judging the blockage at a breathing duct, a user side air passage and an exhaust end in the shortest possible time.

Description

Monitoring method and device that a kind of breathing apparatus stops up
Technical field
The invention belongs to field of medical, relate to monitoring method and device that a kind of breathing apparatus stops up.
Background technology
Respirator has become conventional armarium, be widely used in each clinical first aid and intensive care unit(ICU), but because respirator belongs to crash equipment, the specific factor that himself is arranged, often in clinical, go wrong easily, therefore, seem especially important for respirator in the maintenance on daily, under the situation that does not have relevant detection equipment, respirator need be given full play to self measuring ability, in time pinpoint the problems, effectively deal with problems, be in optimum Working when in use to guarantee respirator.High-end in the market breathing apparatus, the type that has have had stop up to report to the police, yet for the monitoring method of the particular location that stops up, but mention without any data or patent, like this, when the enterprise that produces breathing apparatus need offer the obstruction warning function, just there are not technology and test basis.
In the prior art,, still there is not effective solution for respirator accurate problem of judging blocking position in short as far as possible reality.
Summary of the invention
The objective of the invention is to propose monitoring method and the device that a kind of breathing apparatus stops up, be used for solving prior art can not accurately be judged the blocking position of respirator in the short as far as possible time problem.
One of to achieve these goals, the present invention by the following technical solutions: the monitoring method that a kind of breathing apparatus stops up comprises: a: the pressure and the flow that detect the suction end of described breathing apparatus and the end of exhaling; And b: calculate according to described pressure and flow, and confirm the blocking position of described breathing apparatus according to result of calculation.
Further, described step a comprises: the pressure and the flow that detect the suction end of described breathing apparatus and the end of exhaling respectively.
Further, before described step a, the monitoring method that described breathing apparatus stops up also comprises: the error of described pressure of verification and flow is in preset range before normal ventilation.
Further, described preset range comprises: described pressure and flow be less than or equal to definite value can collected data in the time.
Further, described step b comprises: the corrugated hose block information that obtains described breathing apparatus; Obtain the exhaust port of described breathing apparatus and the block information of external device; And the block information that obtains the user side air flue of described breathing apparatus.
Further, described corrugated hose block information is by judging whether described breathing apparatus exceeds preset range at the pressure difference value of the suction end of definite value in the time and the end of exhaling and draw; If confirm that stopping up appears in described corrugated hose.
Further, the expiration of the block information of described exhaust port and external device by judging described breathing apparatus not malleation PEEP whether above preset value; And whether the expiration tidal volume of described breathing apparatus and air-breathing tidal volume exceed preset range in definite value and draw in the time; If confirm that stopping up appears in described exhaust port and external device.
Further, described air-breathing tidal volume draws by the inspiratory flow of calculating expiratory phase and the difference of expiratory gas flow; Described expiration tidal volume draws by the expiratory gas flow of calculating expiration phase and the difference of inspiratory flow.
Further, whether the block information of described user side air flue is lower than preset value by the minute ventilation of judging described breathing apparatus obtains, if confirm that stopping up appears in described user side air flue.
Further, described minute ventilation by default definite value in the time minimum air-breathing tidal volume calculate and draw.
Another object of the present invention provides the monitoring device that a kind of breathing apparatus stops up, and the monitoring device that described breathing apparatus stops up comprises: the verification module, and the error that is used for the described pressure of verification and flow before normal ventilation is in preset range; Detection module is used to detect the suction end of described breathing apparatus and the pressure and the flow of exhaling and holding; And computing module, be used for calculating, and confirm the blocking position of described breathing apparatus according to result of calculation according to described pressure and flow.
Further, described computing module comprises: acquisition module is used to obtain the corrugated hose block information of described breathing apparatus; Obtain the exhaust port of described breathing apparatus and the block information of external device; And the block information that obtains the user side air flue of described breathing apparatus; And judge module, be used to judge whether described breathing apparatus exceeds preset range at the pressure difference value of the suction end of definite value in the time and the end of exhaling; Whether the expiration of judging described breathing apparatus not malleation PEEP surpasses preset value; And whether the expiration tidal volume of described breathing apparatus and air-breathing tidal volume exceed preset range in definite value in the time; And whether the minute ventilation of judging described breathing apparatus is lower than preset value.
Further, described judge module comprises: confirm module, be used to confirm the blocking position of described breathing apparatus.
Compared with prior art, the invention has the beneficial effects as follows: a kind of truly feasible breathing apparatus judgment of clogging method and apparatus is provided, can in the short as far as possible time, have judged the obstruction that occurs in corrugated hose, user side air flue, exhaust end.
Description of drawings
Accompanying drawing described herein is used to provide the further understanding to type of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the main flow chart according to the monitoring method of the described a kind of breathing apparatus obstruction of the embodiment of the invention;
Fig. 2 is the application implementation figure of monitoring method on described breathing apparatus that stops up according to the described a kind of breathing apparatus of the embodiment of the invention;
Fig. 3 is the structural representation according to the monitoring device of the described a kind of breathing apparatus obstruction of the embodiment of the invention.
Among the figure, breathing apparatus main frame-201, display-203, suction port-205, inspiratory pressure sensor-207, inspiratory flow sensor-209, aspirating air pipe-211, user side air flue-213, analog subscriber end-215, expiration port-217, exhaust end-219, breath pressure pick off-223, expiratory gas flow pick off-221, expiration pipeline-225.
The specific embodiment
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
The present invention is directed to the breathing apparatus blocking position and detect problem, propose monitoring method and device that a kind of breathing apparatus stops up, the monitoring method that the described breathing apparatus of concrete introduction control stops up and the embodiment of device:
Fig. 1 is the main flow chart according to the monitoring method of the described a kind of breathing apparatus obstruction of the embodiment of the invention; Referring to shown in Figure 1, the monitoring method that a kind of breathing apparatus stops up comprises:
A: the pressure and the flow that detect the suction end of described breathing apparatus and the end of exhaling; And
B: calculate according to described pressure and flow, and confirm the blocking position of described breathing apparatus according to result of calculation.
The monitoring method that above-mentioned breathing apparatus is stopped up specifically is applied on the breathing apparatus, as shown in Figure 2, display 203 is set on breathing apparatus main frame 201, inspiratory pressure sensor 207 and inspiratory flow sensor 209 are installed on the suction port 205 of described breathing apparatus, and airflow direction enters analog subscriber end 215 along aspirating air pipe 211 through the Y-type three way type of user side air flue 213; Other side at described breathing apparatus main frame 201, on the exhaust end 219 of the expiration port 217 of described breathing apparatus breath pressure pick off 223 and expiratory gas flow pick off 221 are set, described airflow direction enters analog subscriber end 215 along expiration pipeline 225 through the Y-type three way type of user side air flue 213.
Before normal ventilation, to guarantee that under same pressure and flow conditions, the data that described inspiratory pressure sensor 207, inspiratory flow sensor 209 and breath pressure pick off 223 and expiratory gas flow pick off 221 record are all in the error precision scope by verification.Described breathing apparatus must be when the user breathes can both be in real time (＜=10ms) collect pressure and data on flows.By the image data of two cover pick offs is carried out computational analysis, can monitor the obstruction of breathing apparatus.Can obtain user's air-breathing tidal volume and expiration tidal volume and minute ventilation by data computation to the sensor, wherein, described air-breathing tidal volume is calculated as the difference that expiratory phase inspiratory flow sensor 209 and described expiratory gas flow pick off 221 record flow.Described expiration tidal volume be calculated as the difference that the described expiratory gas flow pick off of expiration phase 221 and described inspiratory flow sensor 209 record flow.Being calculated as over of described minute ventilation breathed for 8 times or the accumulated value of the described air-breathing tidal volume that 1 minute frequency of respiration gets the small value is converted to 1 minute ventilation.
The calculating that the data of gathering by the sensor are carried out, the technical program can be monitored the obstruction of three aspects, comprising: the obstruction of the obstruction of the obstruction of corrugated hose, exhaust port and external device thereof, user side air flue.
When described corrugated hose takes place to stop up, the pressure at blocking pipe two ends will be variant when eupnea, and the pressure at blocking pipe two ends can be measured with inspiratory pressure sensor 207 and breath pressure pick off 223 respectively, at this moment the pressure difference value with two pressure transducers compares, in a period of time, surpass continuously a certain amount of can think line clogging appears.
When described exhaust port and external device generation obstruction thereof, in expiratory phase because outlet valve is when cutting out, so can not judge whether to stop up, and in expiration phase, the end of exhaling needs aerofluxus, breath pressure need drop to sets the PEEP value, if at this moment exhaust end stops up, then breath pressure can not descend, and because the not discharge of user's gas, the tidal volume of then exhaling also can be less than the tolerance that sucks, so to surpass setting value a certain amount of when end expiratory positive pressure, and the expiration tidal volume can be thought during less than air-breathing tidal volume certain value and exhaust end occurs and external device stops up.
When the user side air flue took place to stop up, if hold the control pattern, then air-breathing tidal volume can be less than setting value, and for voltage-controlled pattern, then air-breathing tidal volume can be smaller, judged so can carry out the user side airway obstruction by low this feature of tidal volume.Behaviors such as the holding one's breath of user, air-breathing antagonism, cough also can cause the air-breathing tidal volume of single above-mentioned phenomenon to occur, in order to prevent false alarm, need judge with the tidal volume of repeatedly breathing, promptly when repeatedly breathing tidal volume when being lower than certain value, think that the user side air flue stops up, the actual minute ventilation that uses is judged.
Preferably, when judging aspirating air pipe and expiration line clogging, if pressure differential surpasses 5cmH 2O can think line clogging.Be no more than 200ms from stopping up to the time of judging obstruction; When judging that exhaust end stops up, when actual end expiratory positive pressure is set the high 10cmH of end expiratory positive pressure than the user 2O, and the expiration tidal volume thinks that less than 50% o'clock of air-breathing tidal volume exhaust end stops up.When each air-breathing beginning, judge that judgement time is no more than the respiration time; When judging the user side airway obstruction, when the air-breathing tidal volume (can not be to exhale, because exhale low may causing because leak) of breathing for continuous three times is lower than and sets 80% of tidal volume, think the user side airway obstruction.Judgement time is three times of breathing.Be to prevent that with continuous three times reason the air-breathing antagonism of user or other reason from causing false alarm.
Fig. 3 is an apparatus structure sketch map of realizing the monitoring method of above-mentioned a kind of breathing apparatus obstruction, the monitoring device that described breathing apparatus stops up, as shown in Figure 3, the monitoring device that a kind of breathing apparatus stops up comprises: verification module 301, and the error that is used for the described pressure of verification and flow before normal ventilation is in preset range; Detection module 303 is used to detect the suction end of described breathing apparatus and the pressure and the flow of exhaling and holding; And computing module 305, be used for calculating, and confirm the blocking position of described breathing apparatus according to result of calculation according to described pressure and flow.Described computing module 305 comprises: acquisition module 3051 is used to obtain the corrugated hose block information of described breathing apparatus; Obtain the exhaust port of described breathing apparatus and the block information of external device; And the block information that obtains the user side air flue of described breathing apparatus; And judge module 3052, be used to judge whether described breathing apparatus exceeds preset range at the pressure difference value of the suction end of definite value in the time and the end of exhaling; Whether the expiration of judging described breathing apparatus not malleation PEEP surpasses preset value; And whether the expiration tidal volume of described breathing apparatus and air-breathing tidal volume exceed preset range in definite value in the time; And whether the minute ventilation of judging described breathing apparatus is lower than preset value.Described judge module 3052 comprises: confirm the module (not shown), be used to confirm the blocking position of described breathing apparatus.
Therefore, the breathing apparatus judgment of clogging method and apparatus that provides of the technical program can be judged the obstruction that occurs in corrugated hose, user side air flue, exhaust end in the short as far as possible time as can be seen.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (13)

1. the monitoring method that breathing apparatus stops up is characterized in that, comprising:
A: the pressure and the flow that detect the suction end of described breathing apparatus and the end of exhaling; And
B: calculate according to described pressure and flow, and confirm the blocking position of described breathing apparatus according to result of calculation.
2. the monitoring method that breathing apparatus according to claim 1 stops up is characterized in that,
Described step a comprises: the pressure and the flow that detect the suction end of described breathing apparatus and the end of exhaling respectively.
3. the monitoring method that breathing apparatus according to claim 2 stops up is characterized in that, before the described step a, also comprises:
The error of described pressure of verification and flow is in preset range before normal ventilation.
4. the monitoring method that breathing apparatus according to claim 3 stops up is characterized in that,
Described preset range comprises: described pressure and flow be less than or equal to definite value can collected data in the time.
5. the monitoring method that breathing apparatus according to claim 1 stops up is characterized in that described step b comprises:
Obtain the corrugated hose block information of described breathing apparatus;
Obtain the exhaust port of described breathing apparatus and the block information of external device; And
Obtain the block information of the user side air flue of described breathing apparatus.
6. the monitoring method that breathing apparatus according to claim 5 stops up is characterized in that,
Described corrugated hose block information is by judging whether described breathing apparatus exceeds preset range at the pressure difference value of the suction end of definite value in the time and the end of exhaling and draw; If confirm that stopping up appears in described corrugated hose.
7. the monitoring method that breathing apparatus according to claim 5 stops up is characterized in that,
The expiration of the block information of described exhaust port and external device by judging described breathing apparatus not malleation PEEP whether above preset value; And whether the expiration tidal volume of described breathing apparatus and air-breathing tidal volume exceed preset range in definite value and draw in the time;
If confirm that stopping up appears in described exhaust port and external device.
8. the monitoring method that breathing apparatus according to claim 7 stops up is characterized in that,
Described air-breathing tidal volume draws by the inspiratory flow of calculating expiratory phase and the difference of expiratory gas flow;
Described expiration tidal volume draws by the expiratory gas flow of calculating expiration phase and the difference of inspiratory flow.
9. the monitoring method that breathing apparatus according to claim 5 stops up is characterized in that,
Whether the block information of described user side air flue is lower than preset value by the minute ventilation of judging described breathing apparatus obtains, if confirm that stopping up appears in described user side air flue.
10. the monitoring method that breathing apparatus according to claim 9 stops up is characterized in that, described minute ventilation by default definite value in the time minimum air-breathing tidal volume calculate and draw.
11. the monitoring equipment that breathing apparatus stops up is characterized in that, comprising:
The verification module, the error that is used for the described pressure of verification and flow before normal ventilation is in preset range;
Detection module is used to detect the suction end of described breathing apparatus and the pressure and the flow of exhaling and holding; And
Computing module is used for calculating according to described pressure and flow, and confirms the blocking position of described breathing apparatus according to result of calculation.
12. monitoring equipment according to claim 11 is characterized in that, described computing module comprises:
Acquisition module is used to obtain the corrugated hose block information of described breathing apparatus; Obtain the exhaust port of described breathing apparatus and the block information of external device; And the block information that obtains the user side air flue of described breathing apparatus; And
Judge module is used to judge whether described breathing apparatus exceeds preset range at the pressure difference value of the suction end of definite value in the time and the end of exhaling; Whether the expiration of judging described breathing apparatus not malleation PEEP surpasses preset value; And whether the expiration tidal volume of described breathing apparatus and air-breathing tidal volume exceed preset range in definite value in the time; And whether the minute ventilation of judging described breathing apparatus is lower than preset value.
13. monitoring equipment according to claim 12 is characterized in that, described judge module comprises: confirm module, be used to confirm the blocking position of described breathing apparatus.
CN201010620835.9A 2010-12-31 2010-12-31 Method and device for monitoring blockage of breathing equipment Active CN102266616B (en)

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Application Number Priority Date Filing Date Title
CN201010620835.9A CN102266616B (en) 2010-12-31 2010-12-31 Method and device for monitoring blockage of breathing equipment
BR112012032963A BR112012032963A2 (en) 2010-12-31 2011-12-26 method and apparatus for detecting ventilator block
PCT/CN2011/084700 WO2012089093A1 (en) 2010-12-31 2011-12-26 Method and device for detecting blockage of breathing apparatus

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WO2012089093A1 (en) * 2010-12-31 2012-07-05 北京谊安医疗系统股份有限公司 Method and device for detecting blockage of breathing apparatus
CN104406805A (en) * 2014-11-19 2015-03-11 珠海格力电器股份有限公司 Method and system for detecting unobstructed condition of air conditioner system
CN104568410A (en) * 2015-01-05 2015-04-29 河北钢铁股份有限公司邯郸分公司 Continuous-casting secondary cooling nozzle working state online judgment method
CN105083501A (en) * 2015-09-09 2015-11-25 中国人民解放军海军医学研究所 Diving breathing apparatus
CN106620979A (en) * 2016-12-29 2017-05-10 天津怡和嘉业医疗科技有限公司 Breathing machine control method and device
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WO2012089093A1 (en) * 2010-12-31 2012-07-05 北京谊安医疗系统股份有限公司 Method and device for detecting blockage of breathing apparatus
CN104406805A (en) * 2014-11-19 2015-03-11 珠海格力电器股份有限公司 Method and system for detecting unobstructed condition of air conditioner system
CN104568410A (en) * 2015-01-05 2015-04-29 河北钢铁股份有限公司邯郸分公司 Continuous-casting secondary cooling nozzle working state online judgment method
CN105083501A (en) * 2015-09-09 2015-11-25 中国人民解放军海军医学研究所 Diving breathing apparatus
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CN109996579B (en) * 2016-09-19 2022-08-09 皇家飞利浦有限公司 Method and system for non-invasive ventilation patient airway and leak flow estimation
CN109996579A (en) * 2016-09-19 2019-07-09 皇家飞利浦有限公司 The method and system that patient airway and leakage flow for invasive ventilation are estimated
CN106620979A (en) * 2016-12-29 2017-05-10 天津怡和嘉业医疗科技有限公司 Breathing machine control method and device
CN107179188A (en) * 2017-07-11 2017-09-19 张家港孚冈汽车部件有限公司 Water-spraying pen detecting tool
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CN109939311A (en) * 2017-12-20 2019-06-28 北京谊安医疗系统股份有限公司 The judgment method and ventilator of breathing circuit obstruction block warning device
CN113195024A (en) * 2018-12-29 2021-07-30 青岛精安医疗科技有限责任公司 Oxygen generation system and method
CN113195024B (en) * 2018-12-29 2024-04-05 青岛精安医疗科技有限责任公司 Oxygen generation system and method
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