CN215504938U - Novel breathing machine with sputum excretion function - Google Patents
Novel breathing machine with sputum excretion function Download PDFInfo
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- CN215504938U CN215504938U CN202120780116.7U CN202120780116U CN215504938U CN 215504938 U CN215504938 U CN 215504938U CN 202120780116 U CN202120780116 U CN 202120780116U CN 215504938 U CN215504938 U CN 215504938U
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- 206010036790 Productive cough Diseases 0.000 title claims abstract description 130
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 107
- 208000024794 sputum Diseases 0.000 title claims abstract description 100
- 210000003802 sputum Anatomy 0.000 title claims abstract description 100
- 230000029142 excretion Effects 0.000 title claims abstract description 45
- 238000000605 extraction Methods 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 82
- 239000001301 oxygen Substances 0.000 claims description 35
- 229910052760 oxygen Inorganic materials 0.000 claims description 35
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 22
- 244000144985 peep Species 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 13
- 230000006870 function Effects 0.000 description 35
- 230000008021 deposition Effects 0.000 description 16
- 230000000241 respiratory effect Effects 0.000 description 10
- 238000001514 detection method Methods 0.000 description 7
- 210000000038 chest Anatomy 0.000 description 6
- 238000004062 sedimentation Methods 0.000 description 6
- 210000004072 lung Anatomy 0.000 description 5
- 230000001960 triggered effect Effects 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 206010011224 Cough Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 206010062717 Increased upper airway secretion Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 208000026435 phlegm Diseases 0.000 description 2
- 210000000115 thoracic cavity Anatomy 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 206010003598 Atelectasis Diseases 0.000 description 1
- 208000007123 Pulmonary Atelectasis Diseases 0.000 description 1
- 208000004756 Respiratory Insufficiency Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 201000004193 respiratory failure Diseases 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
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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
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- Pulmonology (AREA)
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- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model provides a novel respirator with a sputum excretion function, which comprises a respirator working component and an air path switching device, wherein the respirator working component comprises a breathing air path, a positive pressure air inlet branch and a negative pressure air outlet branch. The positive pressure air inlet branch is used for being communicated with an air source, the breathing pipeline is used for outputting a first air flow, and the negative pressure air outlet branch is used for sucking air; the gas path switching device is provided with a first input end, a second input end and an output end, the output end is communicated with the breathing pipeline, the first input end is communicated with the positive pressure gas inlet branch, and the second input end is communicated with the negative pressure gas outlet branch; the gas path switching device has a gas supply state and a gas extraction state, when the gas path switching device is in the gas extraction state, the output end is communicated with the first input end, and first gas flow generated by the gas source flows into the output end from the first input end; when the breathing machine is in the state of supplying air, the output end is communicated with the second input end, and the second airflow flows into the second input end through the output end. The utility model solves the problem that the breathing machine in the prior art can not assist expectoration.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a novel breathing machine with a sputum excretion function.
Background
In modern clinical medicine, a ventilator has been widely used in respiratory failure due to various reasons, anesthesia and breathing management during major surgery, respiratory support therapy and emergency resuscitation as an effective means for manually replacing the function of spontaneous ventilation, and has a very important position in the modern medical field.
However, the existing breathing machine only has a breathing function and cannot assist the user in expectoration.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel respirator with a sputum excretion function, and aims to solve the problem that a respirator in the prior art cannot assist a user in expectoration.
In order to solve the problems, the utility model provides a novel respirator with a sputum excretion function, and particularly the novel respirator with the sputum excretion function comprises a respirator working component and an air path switching device, wherein the respirator working component comprises a breathing pipeline, a positive pressure air inlet branch and a negative pressure air outlet branch, the positive pressure air inlet branch is used for being communicated with an air source, the breathing pipeline is used for outputting a first air flow conveyed by the air source, and the negative pressure air outlet branch is used for generating negative pressure suction air;
the gas path switching device is provided with a first input end, a second input end and an output end, the output end is communicated with the breathing pipeline, the first input end is communicated with the positive pressure gas inlet branch, and the second input end is communicated with the negative pressure gas outlet branch; the gas path switching device has a gas supply state and a gas extraction state, and when the gas path switching device is in the gas extraction state, the output end is communicated with the first input end so that a first gas flow generated by the gas source flows into the output end from the first input end; when the novel respirator with the sputum excretion function is in an air supply state, the output end is communicated with the second input end, and second air flow flows into the second input end through the output end.
In an optional embodiment, the novel respirator with the sputum excretion function further comprises a control assembly, the control assembly is connected with the gas circuit switching device, the novel respirator with the sputum excretion function has a breathing work mode and a expectoration work mode, and when the novel respirator with the sputum excretion function is in the breathing work mode, the control assembly controls the gas circuit switching device to work in a gas supply state; when the novel respirator with the sputum excretion function is in a sputum expectoration working mode, the control assembly controls the gas circuit switching device to alternately switch between the gas supply state and the gas exhaust state.
In an optional embodiment, the positive pressure air inlet branch comprises an oxygen branch, an air branch and an air-oxygen mixing chamber, the oxygen branch and the air branch are communicated with the air-oxygen mixing chamber, the air branch and the oxygen branch are respectively used for being communicated with the air source and the oxygen source, and the air-oxygen mixing chamber is communicated with the first input end.
In an optional embodiment, the control assembly further comprises a sensor assembly disposed between the first input and the breathing circuit, the sensor assembly being connected to the control assembly.
In an alternative embodiment, the sensor assembly includes a pressure sensor, an acoustic sensor, and a flow sensor.
In an optional embodiment, the negative pressure gas outlet branch comprises a vacuum pump, the vacuum pump is communicated with the second input end, and the vacuum pump is configured to flow a second gas flow from the output end to the second input end.
In an optional embodiment, the negative pressure outlet branch further includes a pressure proportional valve, and the pressure proportional valve is disposed between the vacuum pump and the second input end.
In an optional embodiment, the negative pressure outlet branch further comprises an air tank disposed between the pressure proportional valve and the vacuum pump.
In an embodiment, the novel ventilator with sputum excretion function further comprises a PEEP control device, the PEEP control device is connected with the breathing pipeline, and the PEEP control device is used for outputting a third airflow to the breathing pipeline at the end of expiration of a user.
In an embodiment, the novel breathing machine with the sputum excretion function further comprises a sputum collection device, and the sputum collection device is connected with the breathing pipeline.
The novel respirator with the sputum excretion function comprises an air channel switching device, wherein the air channel switching device has an air supply state and an air exhaust state, so that the novel respirator with the sputum excretion function has a breathing working mode and a sputum excretion working mode, the air channel switching device can be controlled to alternately switch between the air supply state and the air exhaust state to achieve the effect of simulating human body cough, sputum in a small airway of a human body can move towards a main airway, and finally the sputum can be brought out of the human body through a second air flow to achieve the sputum excretion working mode.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a circuit diagram of an embodiment of a ventilator control assembly according to the present invention;
fig. 2 is a schematic structural diagram of a ventilator according to an embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | Gas |
22 | |
| 20 | Gas circuit switching control circuit | 41 | First pressure sensor |
| 30 | Sputum siltation sensor | 42 | |
| 40 | Signal acquisition sensor module | 61 | |
| 50 | |
62 | |
| 60 | Positive pressure |
63 | Air-oxygen mixing chamber |
| 70 | Negative pressure |
71 | |
| 80 | |
72 | |
| 90 | |
73 | Pressure |
| 100 | Sputum collecting device | 74 | |
| 21 | Processor with a memory having a plurality of memory cells |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
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.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, technical solutions in the embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a novel respirator with a sputum excretion function, which comprises a respirator working component and a gas path switching device 10, wherein the respirator working component comprises a breathing pipeline, a positive pressure gas inlet branch 60 and a negative pressure gas outlet branch 70, the positive pressure gas inlet branch 60 is used for being communicated with a gas source, the breathing pipeline is used for outputting a first gas flow conveyed by the gas source, and the negative pressure gas outlet branch 70 is used for generating negative pressure suction gas; the gas path switching device 10 is provided with a first input end, a second input end and an output end, wherein the output end is communicated with the breathing pipeline, the first input end is communicated with the positive pressure gas inlet branch 60, and the second input end is communicated with the negative pressure gas outlet branch 70; the gas path switching device 10 has a gas supply state and a gas extraction state, and when the gas path switching device 10 is in the gas extraction state, the output end is communicated with the first input end, so that a first gas flow generated by a gas source flows into the output end from the first input end; when the respirator is in the air supply state, the output end is communicated with the second input end, and the second airflow flows into the second input end through the output end.
In this embodiment, the first airflow may be an airflow flowing from a breathing circuit of a ventilator to a human body, and the second airflow may be an airflow flowing from the human body to the ventilator, that is, when the air channel switching device 10 is in an air feeding state, the air pressure of the first airflow is greater than the air pressure of the human body and is a positive air pressure relative to the human body; when the air path switching device 10 is in the air exhaust state, the air pressure of the second air flow is smaller than the air pressure of the human body, and is negative air pressure.
The gas path switching device 10 may be implemented by an electromagnetic directional valve or other directional valves, which is not limited herein, and only meets the requirement of switching and outputting the first gas flow and the second gas flow.
In an optional embodiment, the breathing machine further comprises a control assembly, the control assembly is connected with the air path switching device 10, the breathing machine has a breathing work mode and a expectoration work mode, and when the breathing machine is in the breathing work mode, the control assembly controls the air path switching device 10 to work in an air supply state; when the respirator is in the expectoration working mode, the control component controls the air channel switching device 10 to alternately switch between an air supply state and an air exhaust state.
In addition, novel breathing machine with sputum excretion function can also include discharge valve, works as novel breathing machine with sputum excretion function works in breathing mode when the user breathes in, discharge valve closes for the user breathes in first air current alone when the user exhales, discharge valve opens, discharges the internal gas of human. When the novel breathing machine with the sputum excretion function works in a expectoration working mode, the exhaust valve is in a closed state. The novel respirator with the sputum excretion function can further comprise a breather valve, and the breather valve can be matched with the novel respirator control assembly with the sputum excretion function to assist human body respiration.
Further, the control assembly includes an air path switching control circuit 20, and the air path switching control circuit 20 is electrically connected to the controlled end of the air path switching device 10. The air path switching control circuit 20 controls the first input end and the second input end of the air path switching device 10 to be alternately communicated with the output end; when the novel respirator with the sputum excretion function works in a breathing working mode, the air path switching control circuit 20 controls the first input end and the output end of the air path switching device 10 to be communicated.
In this embodiment, the air path switching control circuit 20 is implemented by combining the processor 21 and the driving circuit 22 of the air path switching device 10, in this embodiment, the air path switching device 10 is taken as an example of an electromagnetic directional valve, the driving circuit 22 may control the electromagnetic directional valve to switch on the first input end and the output end when receiving a high level, and the driving circuit 22 may control the electromagnetic directional valve to switch on the second input end and the output end when receiving a low level. So, when control breathing machine work in expectoration mode of operation, treater 21 can be through output PWM signal to drive circuit 22, thereby first input and the second input that can control the solenoid directional valve through drive circuit 22 communicate with the output in turn, thereby first air current and second air current are low output to extremely breathing pipe in turn, thereby realize ventilating in turn the positive and negative of human body, reach the human cough effect of simulation, make the sputum of human little air flue toward main air flue removal, finally carry over out the human body through the second air current.
In addition, the duty ratio of the PWM signal output by the processor 21 is adjusted, so that the ratio between the on-time of the first input end and the output end of the electromagnetic directional valve and the on-time of the second input end and the output end of the electromagnetic directional valve can be adjusted, that is, the ratio between the first airflow and the second airflow output by the breathing pipeline of the ventilator is adjusted, so that the user can select the sputum excretion time and the sputum excretion strength according to the requirements of practical application. The duty ratio of the PWM signal output by the processor 21 may be a fixed value, or the current vital signs of the user, such as sputum whistling sound, may be obtained through a sensor or the like, so as to determine the current demand of the user, adjust the duty ratio of the PWM signal, and implement automatic sputum excretion. Or, the input unit 80 of the key or the touch screen may trigger to output the breathing ratio control signal to the processor 21, and the processor 21 adjusts the duty ratio of the PWM signal according to the breathing ratio control signal.
When the breathing machine works in a breathing working mode, the processor 21 can adjust the duty ratio of the output PWM signal to be 100%, so that the first input end and the output end of the electromagnetic directional valve are communicated, and a first airflow is output to a breathing pipeline; and then the first airflow is output to the human body through the breathing pipeline, so that the lung ventilation volume is increased, and the human body breathing is assisted.
The technical proposal of the utility model is that a first input end of an air path switching device 10 is connected with a first air flow, a second input end of the air path switching device 10 is connected with a second air flow, an output end of the air path switching device 10 is connected with a breathing pipeline of a breathing machine, and the first input end and the output end of the air path switching device 10 are controlled to be communicated by an air path switching control circuit 20, so that the first air flow is output to a human body through the breathing pipeline, thereby assisting the user to breathe and realizing the breathing work mode of the breathing machine, the utility model also controls the first input end, the second input end and the output end of the air path switching device 10 to be communicated alternately by the air path switching control circuit 20, so that the first air flow and the second air flow are output to the breathing pipeline alternately and low, thereby realizing the alternate positive and negative ventilation of the human body, achieving the effect of simulating the cough of the human body, and enabling the sputum of a small air passage of the human body to move to the main air passage, finally, the sputum is brought out of the human body through the second airflow, and a sputum expectoration working mode is realized, compared with the conventional respirator, when a user needs to expectorate, the respirator needs to be closed firstly, and then the user expectorates by himself; when the breathing assistance is performed on the user, the breathing machine can be directly switched to the expectoration working mode when the user needs expectoration, so that the expectoration of the user is assisted, the intelligent control on the breathing machine is realized, the breathing machine can be helped to be better expectorated, and when the expectoration is needed, the breathing machine is not required to be closed, the switching from the breathing working mode to the expectoration working mode can be realized only by controlling the air path switching device 10, the expectoration of the user is assisted, and the sputum can be discharged through the air pipe by the user. Reduce the operating time of plug trachea, avoided trachea plug period, the problem that the user can't be assisted by breathing has solved the wasting of resources that the equipment switching leads to simultaneously.
In practical application, the novel respirator control assembly with the sputum excretion function can control the respirator to work in a respiration working mode all the time, and assists a user in breathing; and when the button is triggered or the respirator control assembly detects that the user needs expectoration, the working mode is switched to the expectoration working mode to assist the user in expectoration, and when the button is triggered or the sputum deposition amount in the body of the user is detected to be smaller than a preset value or the expectoration working mode lasts for a preset time, the working mode is switched to the respiration working mode again to continue assisting the user in breathing.
Referring to fig. 2, in an embodiment, the novel ventilator control assembly with sputum excretion function further includes a communication module 50; the gas circuit switching control circuit 20 is in communication connection with an external terminal through the communication module 50; the air circuit switching control circuit 20 is further configured to receive a breathing ratio control signal output by the external terminal through the communication module 50, and adjust a communication period between the first input end and the second input end of the air circuit switching device 10 and the output end alternately according to the breathing ratio control signal.
In this embodiment, the communication module 50 may be a WIFI communication module, a bluetooth communication module, or a mobile communication module, for example, a 2G, 3G, 4G, or 5G mobile communication module, which is not limited herein.
The air path switching control circuit 20 is further configured to output data acquired by the signal acquisition sensor module 40 and the sputum sedimentation sensor 30 to an external server or an external terminal in real time. Therefore, the external server or the external terminal can store and analyze the received data, so that the utilization rate of the data is improved; the breathing ratio control signal can be adjusted and output to the communication module 50 according to the analysis result, and the breathing ratio control signal output by the mobile terminal is received by the communication module 50, so that the ratio of expiration time to inspiration time can be adjusted, wireless control of the breathing machine is realized, and controllability of the breathing machine is improved.
Referring to fig. 2, in an embodiment, the novel ventilator with sputum excretion function further includes: the user input circuit is electrically connected with the novel respirator control assembly with the sputum excretion function and is used for outputting a respiration ratio control signal to the novel respirator control assembly with the sputum excretion function when triggered by a user.
In this embodiment, the input unit 80 may be a touch display screen, a mouse, a keyboard, or a key, and is not limited herein. In this embodiment, a touch display screen is taken as an example for explanation, and the novel ventilator control assembly with a sputum excretion function can receive a breath ratio control signal triggered and output by the touch screen, so as to adjust a ratio of output durations of the first airflow and the second airflow, that is, a breath ratio, to meet different user requirements. The touch display screen can also display the airway pressure, airway flow and other gas parameters when the breathing machine works so as to be referred by doctors or users.
In an alternative embodiment, the positive pressure intake branch 60 includes an oxygen branch 62, an air branch 61 and an air-oxygen mixing chamber 63, the oxygen branch 62 and the air branch 61 are both communicated with the air-oxygen mixing chamber 63, the air branch 61 and the oxygen branch 62 are respectively used for being communicated with an air source and an oxygen source, and the air-oxygen mixing chamber 63 is communicated with the first input end.
The air branch 61 can discharge air into the air-oxygen mixing chamber 63 through a blower motor, the oxygen branch 62 discharges oxygen into the air-oxygen mixing chamber 63 through an oxygen tank 72 (which may be provided with a pressure proportional valve 73) or an oxygen supply system of a hospital, and the air-oxygen mixing chamber 63 mixes the oxygen and the air and then outputs the mixture to a first input end of the control assembly of the respirator; this embodiment forms first air current after mixing air and oxygen, exports to the breathing control subassembly to when breathing control subassembly output first air current to human body, compare solitary air, the mixed gas of air and the oxygen of this embodiment can be better supplementary human breathing.
In an optional embodiment, the control assembly of the ventilator further comprises a sensor assembly, the sensor assembly is disposed between the first input end and the breathing circuit, and the sensor assembly is connected to the control assembly. In an alternative embodiment, the sensor assembly includes a pressure sensor, an acoustic sensor, and a flow sensor 42.
Further, according to the functional division of the sensor, the sensor assembly comprises a sputum sedimentation sensor 30 and a signal acquisition sensor module 40. A sputum sedimentation sensor 30 for detecting the amount of sputum sedimentation and outputting a corresponding sputum sedimentation detection signal; the air path switching control circuit 20 is configured to trigger the novel ventilator with sputum excretion function to operate in a sputum expectoration mode when determining that the user has sputum deposition according to the sputum deposition detection signal, and control the first input end and the second input end of the air path switching device 10 to be alternately communicated with the output end. The sputum deposition sensor 30 may be a sound sensor or other sensor capable of detecting the amount of sputum deposition.
Specifically, sound transducer gathers the phlegm sound that the human body sent, gas circuit switching control circuit 20 is again according to the high low frequency acoustic characteristic of phlegm sound carries out the preliminary treatment, carries out the processing of time domain, frequency domain and time-frequency domain, obtains the low dimension statistics that has low operation complexity, strong categorised characteristic to confirm the sputum siltation volume according to statistics volume, and when the sputum siltation volume is greater than the default, control novel breathing machine work in expectoration mode with sputum excretion function, this embodiment has realized automated inspection sputum siltation volume and has opened expectoration mode, has improved the intellectuality of breathing machine.
In an embodiment, the step of detecting the amount of sputum deposition and outputting the corresponding signal of detecting sputum deposition includes:
acquiring respiratory mechanics parameters and increment of a user;
fuzzifying the acquired respiratory mechanics parameters and increments thereof;
calculating the fuzzy sputum deposition amount according to the respiratory mechanics parameters and increment thereof after fuzzification by using a fuzzy rule;
and resolving the fuzzy sputum deposition amount into a sputum deposition detection signal.
In this embodiment, the respiratory-mechanical parameters include: airway pressure and airflow.
In this embodiment, the flow sensor 42 and the first pressure sensor 41 which are arranged on the output airway between the output end of the air path switching device 10 and the breathing pipeline of the breathing machine are arranged to collect the respiratory mechanics parameters of the output airflow of the output airway of the breathing machine, that is, to collect airway pressure and airflow when the human body breathes. Counting according to the collected respiratory mechanics parameters to obtain the increment of the respiratory mechanics parameters; and fuzzifying the respiratory mechanics parameters and the increment thereof.
And designing a membership function, carrying out fuzzy reasoning on the fuzzified respiratory mechanics parameters and increment thereof through a fuzzy rule according to a portable fuzzy rule of clinical experience of a doctor so as to obtain a fuzzy sputum deposition amount, and finally defuzzifying the fuzzy sputum deposition amount through a centroid method so as to convert the fuzzy sputum deposition amount into a sputum deposition detection signal and output the sputum deposition detection signal.
The clinical experience of the doctor may be to determine airway resistance, chest compliance, thoracic compliance, and lung restorability according to respiratory mechanics parameters, that is, by airway pressure and airflow, and then determine the sputum deposition amount of the user according to the airway resistance, chest compliance, thoracic compliance, and lung restorability.
Of course, the sputum sedimentation detection signal may also adopt other detection methods, which are not limited herein. This embodiment has realized automated inspection sputum siltation volume and has opened expectoration mode, has improved the intelligent degree of breathing machine.
The signal acquisition sensor module 40 is electrically connected with the gas circuit switching control circuit 20, and the signal acquisition sensor module 40 is used for acquiring parameter information of the breathing/breathing gas of a user; the gas circuit switching control circuit 20 is further configured to control the gas circuit switching device 10 to operate according to the parameter information of the breathing/inhaling gas of the user.
In this embodiment, the collection sensor module may include: a first pressure sensor 41 and a flow sensor 42; other sensors may be included, and are not limited thereto. Wherein, the first pressure sensor 41 and the flow sensor 42 may be disposed in the airway between the output end of the air path switching device 10 and the breathing circuit of the ventilator, so as to detect the air pressure and the air flow of the air flow at the output end of the air path switching device 10, further, the air path switching control circuit 20 may perform preprocessing such as filtering and noise reduction on the data such as the air pressure and the air flow, draw an air flow-lung volume curve and an air pressure-lung volume curve, and further measure the airway resistance, the chest compliance, the thorax compliance and the lung restorability in real time according to the air pressure and the air flow by acquiring the air pressure and the air flow in real time, so that the ventilator control assembly may determine that the user needs expectoration when one or more of the parameters such as the airway resistance, the chest compliance, the thorax compliance and the lung restorability exceed a preset value, and further control the ventilator to switch to the expectoration operation mode, according to the embodiment, whether the user needs expectoration is judged through the gas parameters, and the judgment accuracy is improved.
In an alternative embodiment, the negative pressure outlet branch 70 comprises a vacuum pump 71, the vacuum pump 71 is in communication with the second input, and the vacuum pump 71 is configured to flow the second gas flow from the output to the second input. Specifically, the vacuum pump 71 is configured to generate negative pressure, so that the second air flow flows into the second input end from the output end under the action of the negative pressure, and finally passes through the pressure proportional valve 73 and the air tank 72 in sequence.
The negative pressure air outlet branch further comprises a second pressure sensor 74, wherein the collection end of the second pressure sensor is connected with the air tank, and the output end of the second pressure sensor is connected with the air path switching control circuit and used for collecting and outputting the pressure of the air tank.
In an alternative embodiment, the negative pressure outlet branch 70 further comprises a pressure proportional valve 73, and the pressure proportional valve 73 is disposed between the vacuum pump 71 and the second input end. Pressure proportional valve 73 is provided to regulate the pressure of the second flow of gas output to the second input of the ventilator control assembly.
In an alternative embodiment, the negative pressure gas outlet branch 70 further comprises a gas tank 72, and the gas tank 72 is disposed between the pressure proportional valve 73 and the vacuum pump 71. In practice, the vacuum pump 71 pumps air out of the air tank 72, so that the air in the air tank 72 outputs a negative pressure to the pressure proportional valve 73, and the pressure proportional valve 73 regulates the pressure of the second air flow output to the second input of the ventilator control assembly. The pressure of the second air flow can be made larger through the arrangement of the air tank 72, and the pressure adjusting range of the second air flow of the breathing machine is favorably improved. In an alternative embodiment, the novel ventilator with sputum excretion function further comprises a pressure sensor connected with the air tank 72.
In one embodiment, the ventilator further comprises a PEEP control device 90, the PEEP control device 90 is connected to the breathing circuit, and the PEEP control device 90 is configured to output a third flow of gas to the breathing circuit at the end of expiration of the user.
In this embodiment, the input end of the PEEP control device 90 may be connected to the atmosphere, or connected to the air branch 61 of the positive pressure air inlet branch 60, and the output end of the PEEP control device 90 may be connected to the breathing pipeline through an exhaust valve, or directly connected to the breathing pipeline, where the PEEP device is connected to the breathing pipeline through an exhaust valve for example
The PEEP control means 90 is operable to determine the end of breath by detecting whether the user is at the end of a breath, in particular, the PEEP control device 90 may be connected through the signal acquisition sensor module 40 of the ventilator control assembly, whether the user is at the end of expiration is judged through the gas parameters (air pressure and air flow) collected by the signal collection sensor module 40, and when it is determined that the user is at the end of expiration, the gas of the air branch 61 is discharged to the exhaust valve, to increase the pressure of the exhaust valve, and then prevent the user from outputting gas to the input end of the exhaust valve, thereby providing positive pressure for the end of expiration of the user, avoiding the complete removal of air by the user, avoiding the early closing of alveoli, expanding a part of alveoli that lose ventilation function due to exudation, atelectasis and the like, therefore, the respirator of the embodiment can increase the reduced functional residual capacity and achieve the purpose of improving the blood oxygen.
In one embodiment, the ventilator further comprises a sputum collection device 100, and the sputum collection device 100 is connected to the breathing conduit. Optionally, the sputum collection device 100 is connected in parallel with a breathing pipeline of the novel ventilator with a sputum excretion function. The sputum collecting device 100 can be connected with the breathing pipeline, so that when the breathing machine works in a sputum expectoration working mode, the sputum collecting device 100 can store sputum expectorated by a user, of course, the sputum collecting device 100 can also be a sputum collecting tank which is independently arranged, so that when the user expectorates, the sputum can be coughed to the sputum collecting device 100, and sanitation is guaranteed.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention that are made by using the contents of the specification and the drawings or directly/indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (10)
1. A novel breathing machine with sputum excretion function is characterized by comprising:
the work assembly of the breathing machine comprises a breathing pipeline, a positive pressure air inlet branch and a negative pressure air outlet branch, wherein the positive pressure air inlet branch is used for being communicated with an air source, the breathing pipeline is used for outputting a first airflow conveyed by the air source, and the negative pressure air outlet branch is used for generating negative pressure suction air;
the gas path switching device is provided with a first input end, a second input end and an output end, the output end is communicated with the breathing pipeline, the first input end is communicated with the positive pressure gas inlet branch, and the second input end is communicated with the negative pressure gas outlet branch;
the gas path switching device has a gas supply state and a gas extraction state, and when the gas path switching device is in the gas extraction state, the output end is communicated with the first input end so that a first gas flow generated by the gas source flows into the output end from the first input end; when the novel respirator with the sputum excretion function is in an air supply state, the output end is communicated with the second input end, and second air flow flows into the second input end through the output end.
2. The ventilator according to claim 1, wherein the novel ventilator with sputum excretion function further comprises a control component, the control component is connected with the gas path switching device, the novel ventilator with sputum excretion function has a breathing operation mode and a expectoration operation mode, and when the novel ventilator with sputum excretion function is in the breathing operation mode, the control component controls the gas path switching device to operate in a gas supply state; when the novel respirator with the sputum excretion function is in a sputum expectoration working mode, the control assembly controls the gas circuit switching device to alternately switch between the gas supply state and the gas exhaust state.
3. The ventilator of claim 2, wherein said positive pressure inlet branch comprises an oxygen branch, an air branch and an air-oxygen mixing chamber, said oxygen branch and said air branch both communicate with said air-oxygen mixing chamber, said air source comprises an air source and an oxygen source, said air branch and said oxygen branch are respectively configured to communicate with said air source and said oxygen source, and said air-oxygen mixing chamber communicates with said first input.
4. The ventilator of claim 3, wherein the control assembly further comprises a sensor assembly disposed between the first input and the breathing circuit, the sensor assembly being coupled to the control assembly.
5. The ventilator of claim 4, wherein the sensor assembly comprises a pressure sensor, a sound sensor, and a flow sensor.
6. The ventilator of claim 3, wherein said negative pressure outlet branch comprises a vacuum pump, said vacuum pump being in communication with said second input port, said vacuum pump being configured to flow a second flow of gas from said output port into said second input port.
7. The ventilator of claim 6, wherein the negative pressure outlet branch further comprises a pressure proportional valve disposed between the vacuum pump and the second input.
8. The ventilator of claim 7, wherein the negative pressure outlet branch further comprises a gas tank disposed between the pressure proportional valve and the vacuum pump.
9. The ventilator of claim 1, wherein said novel ventilator with sputum ejection further comprises a PEEP control device, said PEEP control device being connected to said breathing circuit, said PEEP control device being configured to output a third flow of gas to said breathing circuit at the end of expiration of the user.
10. The ventilator of claim 1, wherein said novel ventilator with sputum excretion function further comprises a sputum collection device, said sputum collection device is connected to said breathing tube.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120780116.7U CN215504938U (en) | 2021-04-15 | 2021-04-15 | Novel breathing machine with sputum excretion function |
| PCT/CN2021/092272 WO2022217675A1 (en) | 2021-04-15 | 2021-05-08 | Novel ventilator having sputum removing function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120780116.7U CN215504938U (en) | 2021-04-15 | 2021-04-15 | Novel breathing machine with sputum excretion function |
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| CN215504938U true CN215504938U (en) | 2022-01-14 |
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| CN202120780116.7U Active CN215504938U (en) | 2021-04-15 | 2021-04-15 | Novel breathing machine with sputum excretion function |
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| CN (1) | CN215504938U (en) |
| WO (1) | WO2022217675A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114904106A (en) * | 2022-05-12 | 2022-08-16 | 柯尔(苏州)医疗科技有限公司 | Hopscn breathing comprehensive treatment system |
| WO2022218052A1 (en) * | 2021-04-15 | 2022-10-20 | 深圳市安保科技有限公司 | Control method for ventilator having sputum removal function and ventilator |
| CN115317739A (en) * | 2022-08-15 | 2022-11-11 | 濡新（北京）科技发展有限公司 | Expectoration starts opportunity and judges device and expectoration machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103933648B (en) * | 2014-03-26 | 2016-09-07 | 北京雅果科技有限公司 | A kind of diaphram stimulates suction and discharge system |
| US10245406B2 (en) * | 2015-03-24 | 2019-04-02 | Ventec Life Systems, Inc. | Ventilator with integrated oxygen production |
| CN105343944B (en) * | 2015-10-12 | 2017-08-25 | 濡新（北京）科技发展有限公司 | Expectoration system |
| WO2017072811A1 (en) * | 2015-10-27 | 2017-05-04 | 株式会社メディカルシード | Expectoration device and artificial respiration system |
| CN106730193A (en) * | 2016-11-11 | 2017-05-31 | 濡新（北京）科技发展有限公司 | A kind of lung ventilator |
| CN113209430A (en) * | 2021-04-15 | 2021-08-06 | 深圳市安保科技有限公司 | Respirator control method with sputum excretion function and respirator |
-
2021
- 2021-04-15 CN CN202120780116.7U patent/CN215504938U/en active Active
- 2021-05-08 WO PCT/CN2021/092272 patent/WO2022217675A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022218052A1 (en) * | 2021-04-15 | 2022-10-20 | 深圳市安保科技有限公司 | Control method for ventilator having sputum removal function and ventilator |
| CN114904106A (en) * | 2022-05-12 | 2022-08-16 | 柯尔(苏州)医疗科技有限公司 | Hopscn breathing comprehensive treatment system |
| CN115317739A (en) * | 2022-08-15 | 2022-11-11 | 濡新（北京）科技发展有限公司 | Expectoration starts opportunity and judges device and expectoration machine |
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| Publication number | Publication date |
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| WO2022217675A1 (en) | 2022-10-20 |
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