CN112220998B - Breathing machine system - Google Patents

Breathing machine system Download PDF

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Publication number
CN112220998B
CN112220998B CN202011153918.1A CN202011153918A CN112220998B CN 112220998 B CN112220998 B CN 112220998B CN 202011153918 A CN202011153918 A CN 202011153918A CN 112220998 B CN112220998 B CN 112220998B
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humidity
gear
humidifier
queue
wmin
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CN112220998A (en
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涂建光
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Lianying Medical Technology Co Ltd
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United Win Medical Technology Co ltd
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Priority to PCT/CN2021/075173 priority patent/WO2022088548A1/en
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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
    • A61M16/0003Accessories therefor, e.g. sensors, vibrators, negative pressure
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/06Respiratory or anaesthetic masks
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • A61M16/1075Preparation of respiratory gases or vapours by influencing the temperature
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • A61M16/14Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/16Devices to humidify the respiration air
    • A61M16/161Devices to humidify the respiration air with means for measuring the humidity
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20Valves specially adapted to medical respiratory devices
    • A61M16/201Controlled valves
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20Valves specially adapted to medical respiratory devices
    • A61M16/201Controlled valves
    • A61M16/202Controlled valves electrically actuated
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • A61M16/105Filters
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/0027Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/003Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • A61M2205/3331Pressure; Flow
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • A61M2205/3379Masses, volumes, levels of fluids in reservoirs, flow rates

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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 invention provides a ventilator system comprising: breathing machine, controller and face guard, the breathing machine includes the humidifier, the face guard with the humidifier passes through the pipe connection, be provided with humidity transducer in the face guard, the controller is used for the face guard is worn the back, according to the humidity value that humidity transducer detected controls the gear of humidifier. The invention can adjust the humidity in the mask in real time, so that the breathing environment in the mask is a favorable environment suitable for breathing.

Description

Breathing machine system
Technical Field
The invention relates to a respirator system, in particular to a respirator system capable of automatically controlling a gear of a humidifier according to a humidity value in a mask.
Background
At present, for people with difficulty in spontaneous breathing, a breathing machine is a vital medical device for maintaining normal vital signs. When the user uses the respirator, the respirator and the mask are connected through the connecting pipeline, and gas in the respirator can enter the mask through the connecting pipeline to be breathed by the user. The existing breathing machine is generally provided with a humidifier which is used for humidifying air, so that the breathing machine is more comfortable to use in a dry environment. For example, if the user feels dry mouth and tongue, the heating and humidifying functions can be started; if the user feels that the mask is filled with vapor, the heating and humidifying level can be reduced, the heating and humidifying level is generally set to be 0-4, 0 is the heating and humidifying function to be closed, 1 is the lowest heating and humidifying level, and 4 is the highest heating and humidifying level.
However, ventilators are typically used while the user is asleep, and thus a simple gear setting can present difficulties when switching. When a user sleeps, the user cannot switch, for example, the user can set the gear 1 before sleeping, and the user can feel dry when sleeping and can not switch to the gear 2. 4 gears are set before sleeping, so that the sleeping pillow is relatively wet, and the sleeping pillow cannot be actively switched to the 3 gears. The gear of the ventilator will not be switched unless it is felt to be particularly dry or wet during sleep, resulting in a wake up in the middle of the night.
It can be seen that the breathing environment within the mask can be detrimental to the user in such situations.
Disclosure of Invention
The invention aims to provide a breathing machine system, which can automatically control the gear of a humidifier of the breathing machine according to the humidity value in a mask, so that the breathing environment suitable for the breathing of a user is kept in the mask, and the health of the user is facilitated.
The technical scheme adopted by the invention is as follows:
an embodiment of the present invention provides a ventilator system, including: breathing machine, controller and face guard, the breathing machine includes the humidifier, the face guard with the humidifier passes through the pipe connection, be provided with humidity transducer in the face guard, the controller is used for the face guard is worn the back, according to the humidity value that humidity transducer detected controls the gear of humidifier includes:
s100, sampling a humidity value W0 detected by a humidity sensor at preset time intervals;
s200, controlling the gear of the humidifier according to the sampled humidity value W0;
the gears comprise an off gear for representing that the humidifier is in an off state and a plurality of humidifying gears for representing that the humidifier is in a humidifying state.
Optionally, the humidifier comprises m gears, and m is 2xAnd x is an integer of 2 or more, wherein 0 represents an off position, 1, …, and m-1 represents a gradually increasing humidification position.
Optionally, the predetermined time is 1-10 minutes.
Optionally, the controller stores therein a preset reference temperature [ Wmin, Wmax ] and a humidity queue Q ═ (Q1, Q2,.. once.. times, Qn), n is a preset queue length, Qi is an ith humidity value detected by the humidity sensor during each use, and Q is initialized to Null.
Optionally, S200 further comprises:
s210, if Q is Null and W0< Wmin, determining a gear G of the humidifier according to Wmin and W0 and not adding W0 to the humidity queue Q;
s220, if Q is Null and W0 ≧ Wmin, then W0 is added to humidity queue Q.
Alternatively, in S210, the gear position
Figure BDA0002742099950000021
Alternatively, in S210, the gear G is determined by:
if W0<D1, then G ═ m-1; if not, then,
Figure BDA0002742099950000022
d1 is a preset humidity threshold.
Optionally, S200 further comprises:
s230, if W0>Wmax, and current gear GWhen in use>0, then the current gear of the humidifier is switched to gear G ═ GWhen in use-1;
S240, if Q is not equal to Null, if the length of Q is less than n, adding W0 into Q;
s250, if the length of Q is equal to n, removing Q1 from Q, moving Qi +1 to Qi in the humidity queue, and adding W0 to Q as Qn;
s260, acquiring the humidity quantity z in the humidity queue Q, wherein the z is not more than n;
and S270, determining whether to switch gears of the humidifier according to the humidity value in the Q.
Optionally, S270 specifically includes:
s272, obtaining k and b so that
Figure BDA0002742099950000031
S274, if k<k1, and current gear GWhen in use<m-1, then the current gear is switched to G ═ GWhen in use+ 1; finishing;
s276, if K>k2, and current gear GWhen in use>0, then the current gear is switched to G ═ GWhen in use-1; finishing;
s278, if k is not less than k2 and not more than k1, the current gear is not switched; finishing;
k1 and k2 are preset thresholds.
Alternatively, k1<0, k2> 0.
According to the breathing machine system provided by the embodiment of the invention, the humidity sensor is arranged in the face mask worn by the user, the controller samples the humidity value in the face mask detected by the humidity sensor every preset time and controls the gear of the humidifier according to the sampled humidity value, so that the humidity in the face mask is controlled to be in a comfortable breathing environment suitable for breathing, and the user experience is improved.
Drawings
Fig. 1 is a schematic structural diagram of a respiratory system according to an embodiment of the present invention.
Fig. 2 to 4 are schematic structural diagrams of a conventional ventilator, wherein fig. 2 and 3 are schematic external views of the conventional ventilator, and fig. 4 is a schematic pneumatic structural diagram of the conventional ventilator.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
In some of the flows described in the present specification and claims and in the above figures, a number of operations are included that occur in a particular order, but it should be clearly understood that these operations may be performed out of order or in parallel as they occur herein, with the order of the operations being indicated as 101, 102, etc. merely to distinguish between the various operations, and the order of the operations by themselves does not represent any order of performance. Additionally, the flows may include more or fewer operations, and the operations may be performed sequentially or in parallel.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a ventilator system, including: the breathing machine 1 comprises a humidifier 101, a controller 2 and a mask 3, wherein the mask 3 is connected with the humidifier 101 through a pipeline (not shown), a humidity sensor (not shown) is arranged in the mask 3, and the controller 2 is used for controlling a gear of the humidifier 101 according to a humidity value detected by the humidity sensor after the mask 3 is worn, and comprises:
s100, sampling a humidity value W0 detected by a humidity sensor at preset time intervals;
s200, controlling the gear of the humidifier according to the sampled humidity value W0;
the gears comprise an off gear for representing that the humidifier is in an off state and a plurality of humidifying gears for representing that the humidifier is in a humidifying state.
According to the breathing machine system provided by the embodiment of the invention, the humidity sensor is arranged in the face mask worn by the user, the controller samples the humidity value in the face mask detected by the humidity sensor every preset time and controls the gear of the humidifier according to the sampled humidity value, so that the humidity in the face mask is controlled to be in a comfortable breathing environment suitable for breathing, and the user experience can be improved.
Further, in the embodiment of the present invention, the ventilator 1 may be an existing ventilator structure, for example, as shown in fig. 2 to 4, in addition to the humidifier 101, the ventilator may further include a main unit 102, a control panel 103, a display screen 104, an air inlet 105, a power supply port 106, and the like may be disposed outside the main unit 102, a blower 109 may be disposed inside the main unit 102, an operation key is disposed on the control panel 103, and includes an upper direction key, a start/stop key, a lower direction key, a left direction key, and a right direction key, the humidifier 101 may include a water tank 107 and a heating sheet 108 disposed on the main unit 102, and the water tank is provided with an air outlet connected to a pipeline. One end of the fan 107 is connected with the air inlet 105, the other end is connected with the water tank through a connecting pipe, a pressure sensor 110 and a flow sensor 111 are arranged on the connecting pipe of the fan and the water tank, and an inlet filter 112 is arranged at the air inlet 105 to filter impurities in the air. In use of the respirator, the heater plate begins to heat the water tank and the fan 109 is activated to draw external air into the main unit and then to the water tank, and steam generated by heating of the heater plate by the air flow delivered by the fan is fed to the mask through the conduit to fill the mask 3 with air.
Further, in embodiments of the present invention, the wearing of the mask by the user may be detected using existing techniques. The humidity sensor is disposed in the mask at a location that is less susceptible to humidity in the conduit, for example, at a location relatively far from the conduit and the mask, rather than at the outlet of the conduit and in the direction of the conduit flow.
In the embodiment of the present invention, the gears of the humidifier 101 may include m gears, where m is 2xAnd x is an integer of 2 or more, wherein 0 represents an off position, 1, …, and m-1 represents a gradually increasing humidification position. Preferably, x is equal to 2 or 3. In a preferred example, x may be equal to 2, such that the humidifier 101 may have 4 shift positions, where 0 is an off shift position and 1-3 are gradually increasing humidification shift positions. The gear control of the humidifier can be controlled by a valve. Specifically, the end part of the pipeline connected with the water tank can be provided with a valve support frame, the valve support frame can be provided with X fan-shaped valves which take the axial center of the pipeline as a connecting point, the X fan-shaped valves are sequentially connected to form a circle, namely, the X fan-shaped valves are all closed, and the pipeline is in a closed state. The area of the x valves is set as: the area of the first valve is S1, the area of the second valve is S2, the area of the xth valve is Sx, Si +1 is 2 × Si, and i takes on values from 1 to x.
Thus, when the shift position is the 4 th shift position, the area of the first valve is S1, the area of the second valve is S2, and S2 is 2 × S1. 0 corresponds to both S1 and S2 being closed; 1 corresponds to S1 open; 2 corresponds to S2 open; 3 corresponds to both S1 and S2 being open. The controller only needs to control the switches of the first valve and the second valve according to the humidity value, and the gear of the humidifier can be controlled. The specific realization of the valve adopts the prior art.
Further, in the embodiment of the present invention, the predetermined time may be 1 to 10 minutes, and preferably 3 to 5 minutes, so as to timely control the humidity in the mask.
In the embodiment of the present invention, the controller 2 may be a separate control device, or may be a control chip integrated on the control chip of the ventilator 1. The controller 2 stores a preset reference temperature [ Wmin, Wmax ], and for example, Wmin is 40 and Wmax is 70. Of course, may be rearranged according to the user's doctor's advice, and the present invention is not particularly limited. In addition, the controller 2 is further provided with a humidity queue Q ═ (Q1, Q2,........, Qn), n is a preset queue length, Qi is the ith humidity value detected by the humidity sensor during each use, and Q is initialized to Null. During each use, the humidity queue is initialized, i.e. the humidity queue value of the previous use is emptied.
Further, in the embodiment of the present invention, the controller 2 may set an initial gear of the humidifier according to the humidity value detected by the humidity sensor and perform switching control of the gear of the humidifier during use.
Wherein, when the controller sets the initial gear based on the humidity value detected by the humidity sensor, S200 may further include:
s210, if Q is Null and W0< Wmin, determining a gear G of the humidifier according to Wmin and W0 and not adding W0 to the humidity queue Q;
s220, if Q is Null and W0 ≧ Wmin, then W0 is added to humidity queue Q.
Q ═ Null, which indicates that there is no detected humidity value in the humidity queue, i.e. the user has just used the ventilator. Steps S210 and S220 can set the initial range of the humidifier to a humidification range such that W0 is greater than Wmin.
The gear G of the humidifier in step S210 may be determined in two ways:
mode 1: in S210, gear
Figure BDA0002742099950000061
Mode 2: in S210, the gear G is determined by:
if W0<D1, then G ═ m-1; if not, then,
Figure BDA0002742099950000062
d1 is a preset humidity threshold, e.g., D1 ═ Wmin/4.
Mode 1 is a linear determination, and gear G can be obtained simply and quickly. Mode 2 can more easily achieve Wmin quickly with a small W0, and is highly efficient. The introduction of D1 was aimed at avoiding switching between multiple valves in the case of larger m.
In an embodiment of the present invention, when the controller switches the shift position of the humidifier during use based on the humidity value detected by the humidity sensor, S200 may further include:
s230, if W0>Wmax, and current gear GWhen in use>0, then the current gear of the humidifier is switched to gear G ═ GWhen in use1, namely, descending the first gear; executing S240;
s240, if Q is not equal to Null, if the length of the humidity queue Q is less than n, adding W0 in the S230 into the humidity queue Q;
s250, if the length of the humidity queue Q is equal to n, removing Q1 from the humidity queue Q, moving Qi +1 to Qi in the humidity queue, and adding W0 in S230 to the humidity queue Q as Qn;
s260, acquiring the humidity quantity z in the humidity queue Q, wherein the z is not more than n;
and S270, determining whether to switch the gear of the humidifier according to the humidity values in the humidity queue Q.
Through the previous steps, the humidity value W0 detected by the humidity sensor is a humidity value within the reference humidity [ Wmin, Wmax ]. At this time, it is necessary to determine whether or not to perform shift switching according to the humidity queue Q, and for example, if the humidity in the humidity queue Q is constantly increasing, the shift needs to be lowered, and if the humidity in the humidity queue Q is constantly decreasing, the shift needs to be raised. Specifically, S270 may include:
s272, obtaining k and b so that
Figure BDA0002742099950000063
S274, if k<k1, and current gear GWhen in use<m-1, then the current gear is switched to G ═ GWhen in use+1, i.e. up to one gear; finishing;
s276, if K>k2, and current gear GWhen in use>0, then the current gear is switched to G ═ GWhen in use1, namely, reducing the first gear; finishing;
s278, if k is not less than k2 and not more than k1, the current gear is not switched, namely the current gear is not changed; and (6) ending.
Wherein k1 and k2 are preset thresholds. Preferably, k1<0, k2> 0. More preferably, k1+ k2 ═ 0 |, more preferably, | k1| ═ k2| < (Wmax-Wmin)/n. Therefore, the humidity value in the mask can be ensured not to be rapidly increased from Wmin to Wmax within preset n sampling time.
It should be noted that steps S210 and S230 may be executed sequentially or in parallel, and the present invention is not particularly limited.
To sum up, in the breathing machine system provided by the embodiment of the present invention, the humidity sensor is disposed in the mask worn by the user, the controller samples the humidity value in the mask detected by the humidity sensor every predetermined time, and controls the gear of the humidifier according to the sampled humidity value, including setting of the initial gear and gear switching during use, so as to control the humidity in the mask to be in a comfortable breathing environment suitable for breathing, and user experience can be improved.
The above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (6)

1. A ventilator system, comprising: breathing machine, controller and face guard, the breathing machine includes the humidifier, the face guard with the humidifier passes through the pipe connection, be provided with humidity transducer in the face guard, the controller is used for the face guard is worn the back, according to the humidity value that humidity transducer detected controls the gear of humidifier includes:
s100, sampling a humidity value W0 detected by a humidity sensor at preset time intervals;
s200, controlling the gear of the humidifier according to the sampled humidity value W0;
the gears comprise an off gear for representing that the humidifier is in an off state and a plurality of humidifying gears for representing that the humidifier is in a humidifying state;
the controller stores preset reference humidity [ Wmin, Wmax ] and a humidity queue Q (Q1, Q2, n.... and Qn), wherein n is a preset queue length, Qi is an ith humidity value detected by the humidity sensor during each use period, and i is 1,2, …, n and Q are initialized to Null;
s200 further includes:
s210, if Q is Null and W0< Wmin, determining a gear G of the humidifier according to Wmin and W0 and not adding W0 to the humidity queue Q;
s220, if Q is Null and W0 is more than or equal to Wmin, adding W0 into a humidity queue Q;
s230, if W0>Wmax, and current gear GWhen in use>0, then the current gear of the humidifier is switched to gear G ═ GWhen in use-1;
S240, if Q is not equal to Null, if the length of Q is less than n, adding W0 into Q;
s250, if the length of Q is equal to n, removing Q1 from Q, moving Qi +1 to Qi in the humidity queue, and adding W0 to Q as Qn;
s260, acquiring the humidity quantity z in the humidity queue Q, wherein the z is not more than n;
s270, determining whether to switch gears of the humidifier according to the humidity value in the Q;
s270 specifically includes:
s272, obtaining coefficients k and b so that
Figure FDA0002985952260000011
S274, if k<k1, and current gear GWhen in use<m-1, then the current gear is switched to G ═ GWhen in use+ 1; finishing;
s276, if k>k2, and current gear GWhen in use>0, then the current gear is switched to G ═ GWhen in use-1; finishing;
s278, if k is not less than k2 and not more than k1, the current gear is not switched; finishing;
k1 and k2 are preset thresholds.
2. The ventilator system of claim 1 wherein the humidifier gears comprise m gears, and m-2xAnd x is an integer of 2 or more, wherein 0 represents an off position, 1, …, and m-1 represents a gradually increasing humidification position.
3. The ventilator system of claim 1 wherein said predetermined time is 1-10 minutes.
4. The ventilator system of claim 2 wherein in S210, a gear is provided
Figure FDA0002985952260000021
5. The ventilator system of claim 2 wherein in S210 gear G is determined by:
if W0<D1, then G ═ m-1; if not, then,
Figure FDA0002985952260000022
d1 is a preset humidity threshold, and D1 is Wmin/4.
6. The ventilator system of claim 1 wherein k1<0, k2> 0.
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CN202011153918.1A CN112220998B (en) 2020-10-26 2020-10-26 Breathing machine system
PCT/CN2021/075173 WO2022088548A1 (en) 2020-10-26 2021-02-04 Ventilator system

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