WO2022217675A1 - 一种具有排痰功能的新型呼吸机 - Google Patents
一种具有排痰功能的新型呼吸机 Download PDFInfo
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- WO2022217675A1 WO2022217675A1 PCT/CN2021/092272 CN2021092272W WO2022217675A1 WO 2022217675 A1 WO2022217675 A1 WO 2022217675A1 CN 2021092272 W CN2021092272 W CN 2021092272W WO 2022217675 A1 WO2022217675 A1 WO 2022217675A1
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- WIPO (PCT)
- Prior art keywords
- air
- ventilator
- branch
- input end
- sputum
- Prior art date
Links
- 206010036790 Productive cough Diseases 0.000 title claims abstract description 136
- 208000024794 sputum Diseases 0.000 title claims abstract description 78
- 210000003802 sputum Anatomy 0.000 title claims abstract description 77
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 74
- 238000000605 extraction Methods 0.000 claims abstract description 14
- 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 24
- 239000007789 gas Substances 0.000 claims description 16
- 244000144985 peep Species 0.000 claims description 15
- 238000009825 accumulation Methods 0.000 description 24
- 230000000241 respiratory effect Effects 0.000 description 13
- 206010062717 Increased upper airway secretion Diseases 0.000 description 10
- 208000026435 phlegm Diseases 0.000 description 10
- 238000004891 communication Methods 0.000 description 9
- 238000001514 detection method Methods 0.000 description 9
- 210000000115 thoracic cavity Anatomy 0.000 description 8
- 210000004072 lung Anatomy 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 5
- 206010011224 Cough Diseases 0.000 description 4
- 230000001960 triggered effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 210000003437 trachea Anatomy 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000007781 pre-processing Methods 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
- 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
- 238000001914 filtration Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 201000004193 respiratory failure Diseases 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
Definitions
- the present application relates to the technical field of medical devices, and in particular, to a novel ventilator with sputum expectoration function.
- ventilator As an effective means to artificially replace the function of spontaneous ventilation, has been widely used in respiratory failure caused by various reasons, anesthesia and respiratory management during major surgery, respiratory support treatment and emergency resuscitation. It occupies a very important position in the field of modern medicine.
- the existing ventilator only has the function of breathing and cannot assist the user to expectorate phlegm.
- the present application proposes a novel ventilator with expectoration function, which aims to solve the problem that the ventilator in the prior art cannot assist the user to expectorate sputum.
- the present application proposes a novel ventilator with sputum expectoration function.
- the novel ventilator with sputum expectoration function includes a ventilator working assembly and an air path switching device, and the ventilator working assembly includes a breathing tube.
- the positive pressure air intake branch is used to communicate with the air source, the breathing circuit is used to output the first air flow delivered by the air source, and the The negative pressure outlet branch is used to generate negative pressure suction gas;
- the air circuit switching device has a first input end, a second input end and an output end, the output end communicates with the breathing pipeline, the first input end communicates with the positive pressure air intake branch, and the The second input end communicates with the negative pressure air outlet branch; the air circuit switching device has an air supply state and an air extraction state.
- the air circuit switching device When the air circuit switching device is in the air extraction state, the output end and the first input so that the first air flow generated by the air source flows from the first input end into the output end; when the new ventilator with sputum expectoration function is in the air supply state, the output end and the The second input end is communicated, and the second air flow flows into the second input end from the output end.
- the novel ventilator with expectoration function further includes a control component, the control component is connected to the air circuit switching device, and the novel ventilator with expectoration function has a breathing working mode and a coughing mode.
- Sputum working mode when the new ventilator with sputum expectoration function is in the breathing working mode, the control component controls the air circuit switching device to work in the air supply state; when the new ventilator with sputum expectoration function is in the coughing state In the phlegm working mode, the control component controls the air circuit switching device to alternately switch between the air supply state and the air extraction state.
- the positive pressure intake branch includes an oxygen branch, an air branch, and an air-oxygen mixing chamber, and the oxygen branch and the air branch are all communicated with the air-oxygen mixing chamber, so The air branch and the oxygen branch are respectively used to communicate with the air source and the oxygen source, and the air-oxygen mixing chamber communicates with the first input end.
- control assembly further includes a sensor assembly, the sensor assembly is disposed between the first output end and the breathing circuit, and the sensor assembly is connected to the control member.
- the sensor assembly includes a pressure sensor, a sound sensor, and a flow sensor.
- the negative pressure gas outlet branch includes a vacuum pump, the vacuum pump communicates with the second input end, and the vacuum pump is used to flow the second gas flow from the output end into the second input end.
- the negative pressure outlet branch further includes a pressure proportional valve, and the pressure proportional valve is arranged between the vacuum pump and the second input end.
- the negative pressure air outlet branch further includes an air tank, and the air tank is arranged between the pressure proportional valve and the vacuum pump.
- the novel ventilator with expectoration function further includes a PEEP control device, the PEEP control device is connected to the breathing circuit, and the PEEP control device is used for the end of the user's exhalation. , output the third airflow to the breathing circuit.
- the novel ventilator with sputum expectoration function further includes a sputum collecting device, and the sputum collecting device is connected to the breathing pipeline.
- the present application proposes a novel ventilator with a sputum expectoration function.
- the novel ventilator with a sputum expectoration function includes an air circuit switching device, and the air circuit switching device has an air supply state and an air extraction state, so that the The new ventilator with sputum expectoration function has a breathing working mode and an expecting sputum working mode, and can control the air circuit switching device to alternately switch between the air supply state and the air extraction state to simulate the effect of human cough, so that the sputum in the small airways of the human body can flow to the air.
- the main airway moves, and is finally brought out of the human body through the second airflow to realize the expectoration work mode.
- the ventilator control component of the present application can control the work of the ventilator, the respiratory work mode and the expectoration work mode, and at the same time satisfy the user's breathing and expectoration. need.
- FIG. 1 is a circuit diagram of an embodiment of a ventilator control assembly of the present application
- FIG. 2 is a schematic structural diagram of an embodiment of a ventilator according to the present application.
- Air switching device twenty two Drive circuit 20
- Air circuit switching control circuit 41
- first pressure sensor 30
- Sputum accumulation sensor 42
- Flow Sensors 40
- Signal acquisition sensor module 61
- Air bypass 50
- Communication module 62
- oxygen bypass 60
- Positive pressure intake branch 63
- Air Oxygen Mixing Chamber 70
- Negative pressure outlet branch 71
- vacuum pump 80
- gas tank 90
- PEEP control device 73
- Pressure proportional valve 100 Phlegm collection device 74 second pressure sensor twenty one processor
- the ventilator includes a ventilator working assembly and an air circuit switching device 10.
- the ventilator working assembly includes a breathing circuit, a positive pressure air intake branch 60, a negative pressure
- the pressure outlet branch 70, the positive pressure air inlet branch 60 are used to communicate with the air source, the breathing circuit is used to output the first airflow delivered by the air source, and the negative pressure air outlet branch 70 is used to generate negative pressure suction gas;
- the circuit switching device 10 has a first input end, a second input end and an output end, the output end is connected to the breathing circuit, the first input end is connected to the positive pressure air intake branch 60, and the second input end is connected to the negative pressure air outlet branch 70 ;
- the air circuit switching device 10 has a supply state and an air extraction state.
- the output end When the air circuit switching device 10 is in an air extraction state, the output end is communicated with the first input end, so that the first air flow generated by the air source flows into the first input end.
- the output end when the ventilator is in the air supply state, the output end communicates with the second input end, and the second air flow flows into the second input end from the output end.
- the first airflow may be the airflow flowing from the breathing circuit of the ventilator to the human body
- the second airflow may be the airflow flowing from the human body to the ventilator, that is, when the air circuit switching device 10 When in the air supply state, relative to the human body, the air pressure of the first air flow is greater than the human body air pressure, which is positive air pressure; when the air circuit switching device 10 is in the air pumping state, the air pressure of the second air flow is lower than the human body air pressure, which is negative air pressure.
- the gas path switching device 10 can be realized by using an electromagnetic reversing valve or other reversing valve, which is not limited here, as long as the requirements for switching the output of the first air flow and the second air flow are satisfied.
- the ventilator further includes a control component, the control component is connected to the air circuit switching device 10, the ventilator has a breathing working mode and a expectoration working mode, and when the ventilator is in the breathing working mode, the control component controls the air circuit switching device. 10 works in the air supply state; when the ventilator is in the expectoration working mode, the control component controls the air circuit switching device 10 to alternately switch between the air supply state and the air extraction state.
- the novel ventilator with expectoration function may further include an exhaust valve.
- the novel ventilator with expectoration function works in the breathing mode, when the user inhales, the exhaust valve is closed, so that the exhaust valve is closed. The user inhales the first airflow alone, and when the user exhales, the exhaust valve opens to exhaust the gas in the human body.
- the novel ventilator with expectoration function works in the expectoration working mode, the exhaust valve is in a closed state.
- the novel ventilator with expectoration function may further include a breathing valve, which can cooperate with the control assembly of the novel ventilator with expectoration function to assist human respiration.
- control assembly includes an air circuit switching control circuit 20 , and the air circuit switching control circuit 20 is electrically connected to the controlled end of the air circuit switching device 10 .
- the air circuit switching control circuit 20 controls the first input end and the second input end of the air circuit switching device 10 to alternately communicate with the output end; when the novel ventilator with sputum expectoration function works in the breathing mode , the air circuit switching control circuit 20 controls the first input end of the air circuit switching device 10 to communicate with the output end.
- the air circuit switching control circuit 20 is realized by a combination of the processor 21 and the driving circuit 22 of the air circuit switching device 10.
- the air circuit switching device 10 is an electromagnetic reversing valve as an example for description.
- the drive circuit 22 may control the electromagnetic reversing valve to connect to the first input and output when receiving a high level, and the drive circuit 22 may control the electromagnetic reversing valve to connect to the second input when receiving a low level. terminal and output terminal.
- the processor 21 can output the PWM signal to the drive circuit 22, so that the drive circuit 22 can control the first input end and the second input end of the electromagnetic reversing valve alternately It is connected with the output end, so that the first air flow and the second air flow are alternately output to the breathing circuit, so as to realize the positive and negative ventilation of the human body, and achieve the effect of simulating the human body's cough, so that the sputum in the small airway of the human body moves to the main airway. , and finally brought out of the human body through the second airflow.
- the duty ratio of the PWM signal output by the processor 21 the ratio between the turn-on time of the first input end and the output end of the electromagnetic directional valve and the turn-on time of the second input end and the output end can be adjusted. That is, the ratio of the first airflow and the second airflow output by the breathing circuit of the ventilator is adjusted, so that the user can choose the expectoration time and the expectoration intensity according to the actual application requirements.
- the duty cycle of the PWM signal output by the processor 21 may be a fixed value, or the current vital signs of the user, such as phlegm sound, etc., may be acquired through sensors, etc., to determine the current needs of the user, and adjust the duty cycle of the PWM signal to achieve Automatic expectoration.
- a key or the input unit 80 of the touch screen can also be used to trigger and output the breathing ratio control signal to the processor 21, and the processor 21 then adjusts the duty cycle of the PWM signal according to the breathing ratio control signal.
- the processor 21 can adjust the duty ratio of the output PWM signal to 100%, so that the first input end of the electromagnetic reversing valve is connected with the output end, and the first air flow is output to the breathing
- the first air flow is output to the human body through the breathing pipeline, so as to increase the lung ventilation and assist the human body to breathe.
- the technical solution of the present application is to set the first input end of the air circuit switching device 10 to be connected to the first airflow, the second input end of the air circuit switching device 10 to be connected to the second air flow, and the output end of the air circuit switching device 10 to be connected to the ventilator.
- the breathing circuit is connected, and then the first input end of the air circuit switching device 10 is controlled to communicate with the output end through the air circuit switching control circuit 20, and the first air flow is output to the human body through the breathing circuit, so as to assist the user to breathe and realize the ventilation of the ventilator.
- the present application also controls the first input end and the second input end of the air circuit switching device 10 to communicate alternately with the output end through the air circuit switching control circuit 20, so that the first air flow and the second air flow are alternately output to the breathing tube.
- the sputum in the small airway of the human body moves to the main airway, and finally is brought out of the human body through the second air flow to realize the sputum working mode.
- the ventilator when the user needs to expectorate sputum, the ventilator needs to be turned off first, and then the user can expectorate sputum by himself; while the ventilator of the present application assists the user in breathing, when the user needs to expectorate sputum, it can be directly Switch to expectoration work mode to assist the user to expectorate and realize intelligent control of the ventilator. This not only helps the user to expectorate sputum better, but also does not need to turn off the ventilator when expecting sputum, and only needs to control the switching of the air path.
- the device 10 can realize switching from the breathing work mode to the expectoration work mode, so as to assist the user to expectorate the phlegm, and the user can discharge the phlegm through the trachea. It reduces the operation time of inserting and pulling out the trachea, avoids the problem that the user cannot be assisted to breathe during the insertion and extraction of the trachea, and solves the waste of resources caused by equipment switching.
- the novel ventilator control component with expectoration function can control the ventilator to work in the breathing mode all the time to assist the user to breathe; and when triggered by a button or the ventilator control component detects that the user needs to expectorate Switch to the expectoration work mode to assist the user to expectorate sputum, and switch back to the breathing work mode when the sputum accumulation in the user's body is triggered by a button or when it is detected that the amount of sputum accumulation in the user's body is less than the preset value or the expectoration work mode lasts for a preset time. , continue to assist the user to breathe.
- the novel ventilator control assembly with sputum expectoration function further includes a communication module 50; the air circuit switching control circuit 20 communicates with an external terminal through the communication module 50; the The air circuit switching control circuit 20 is further configured to receive the breathing ratio control signal output by the external terminal through the communication module 50, and adjust the first input end and the first input end of the air circuit switching device 10 according to the breathing ratio control signal.
- the two input terminals communicate with the output terminal alternately for periods of time.
- the communication module 50 may be a WIFI communication module, a Bluetooth communication module or a mobile communication module, such as a 2G, 3G, 4G or 5G mobile communication module, which is not limited here.
- the air path switching control circuit 20 is also used to output the data collected by the signal collection sensor module 40 and the phlegm accumulation 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, thereby improving the utilization rate of the data; it is also possible to adjust the output breathing ratio control signal to the communication module 50 according to the analysis result, which is received by the communication module 50 in this embodiment.
- the breathing ratio control signal output by the mobile terminal can adjust the ratio of the expiratory time and the inhalation time, realize the wireless control of the ventilator, and improve the controllability of the ventilator.
- the novel ventilator with expectoration function further includes: a user input circuit electrically connected to the control assembly of the novel ventilator with expectoration function, and the user input circuit is used for When triggered by the user, a breathing ratio control signal is output to the novel ventilator control component with expectoration function.
- the input unit 80 may be a touch display screen, or may be a mouse, a keyboard or a key, etc., which is not limited here.
- This embodiment is described by taking the touch screen as an example.
- the novel ventilator control component with sputum expectoration function can receive the respiration ratio control signal triggered and output by the touch screen, so as to adjust the ratio of the output duration of the first airflow and the output of the second airflow. , that is, the breathing ratio, to adapt to different user needs.
- the touch display screen can also display pneumatic parameters such as airway pressure and airway flow when the ventilator is working, for reference by doctors or users.
- 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 all communicated with the air-oxygen mixing chamber 63, and the air branch
- the circuit 61 and the oxygen branch circuit 62 are respectively used to communicate with the air source and the oxygen source, and the air-oxygen mixing chamber 63 communicates with the first input end.
- the air branch 61 can discharge air into the air-oxygen mixing chamber 63 through a blower motor, and the oxygen branch 62 can be an oxygen tank 72 (which can be equipped with a pressure proportional valve 73 ) or an oxygen supply system of a hospital.
- the oxygen is discharged into the air-oxygen mixing chamber 63, and the air-oxygen mixing chamber 63 mixes oxygen and air and outputs it to the first input end of the ventilator control assembly; in this embodiment, the air and oxygen are mixed to form a first airflow , output to the breathing control component, so that when the breathing control component outputs the first airflow to the human body, the mixed gas of air and oxygen in this embodiment can better assist the human body to breathe compared to the single air.
- control assembly of the ventilator further includes a sensor assembly, the sensor assembly is disposed between the first output end and the breathing circuit, and the sensor assembly is connected to the control member.
- the sensor assembly includes a pressure sensor, a sound sensor, and a flow sensor 42 .
- the sensor assembly includes a phlegm accumulation sensor 30 and a signal collection sensor module 40 .
- the sputum accumulation sensor 30 is used to detect the amount of sputum accumulation and output a corresponding sputum accumulation detection signal; the air path switching control circuit 20 is used to determine that the user has sputum accumulation according to the sputum accumulation detection signal. , trigger the novel ventilator with expectoration function to work in the expectoration mode, and control the first input end and the second input end of the air circuit switching device 10 to alternately communicate with the output end.
- the sputum accumulation sensor 30 may be a sound sensor or other sensors capable of detecting the amount of sputum accumulation.
- the sound sensor collects the phlegm sound emitted by the human body
- the air path switching control circuit 20 performs preprocessing according to the high and low frequency acoustic characteristics of the phlegm sound, and performs time domain, frequency domain and time-frequency domain analysis. process to obtain a low-dimensional statistic with low computational complexity and strong classification characteristics, so as to determine the sputum accumulation amount according to the statistic, and when the sputum accumulation amount is greater than a preset value, control the new type of sputum-expelling function
- the ventilator works in the expectoration work mode, and this embodiment realizes the automatic detection of the sputum accumulation and turns on the expectoration work mode, which improves the intelligence of the ventilator.
- the step of detecting the sputum accumulation amount and outputting the corresponding sputum accumulation detection signal specifically includes:
- Fuzzy respiratory mechanics parameters and their increments will be used to calculate fuzzy sputum accumulation
- the fuzzy sputum accumulation amount was de-fuzzed into the detection signal of sputum accumulation.
- the respiratory mechanics parameters include: airway pressure and air flow.
- the flow sensor 42 and the first pressure sensor 41 arranged on the output airway between the output end of the air circuit switching device 10 and the breathing circuit of the ventilator are used to collect the output of the output airway of the ventilator.
- the respiratory mechanics parameters of the airflow that is, the airway pressure and airflow when the human body is breathing. And according to the collected respiratory mechanics parameters, statistics are made to obtain the increments of the respiratory mechanics parameters; the respiratory mechanics parameters and their increments are fuzzified.
- the fuzzy rules are used to perform fuzzy inference on the respiratory mechanics parameters and their increments, so as to obtain the accumulation of fuzzy sputum.
- the fuzzy sputum is calculated by the centroid method.
- the sputum deposition amount is de-fuzzed, converted into a sputum deposition detection signal and output.
- the clinical experience of doctors can be based on respiratory mechanics parameters, that is, airway resistance, thoracic compliance, thoracic compliance and lung recruitability are determined by airway pressure and air flow, and then based on airway resistance, thoracic compliance, thoracic Compliance and lung recruitability determine the user's sputum accumulation.
- the sputum accumulation detection signal may also adopt other detection methods, which are not limited here.
- This embodiment realizes the automatic detection of sputum accumulation and enables the sputum expectoration working mode, which improves the intelligence of the ventilator.
- the signal acquisition sensor module 40 is electrically connected with the air circuit switching control circuit 20, and the signal acquisition sensor module 40 is used to collect the parameter information of the user's breathing/inhalation gas; the air circuit switching control circuit 20 also It is used to control the operation of the air circuit switching device 10 according to the parameter information of the user's breathing/breathing gas.
- the collection sensor module may include: a first pressure sensor 41 and a flow sensor 42; of course, it may also include other sensors, which are not limited here.
- the first pressure sensor 41 and the flow sensor 42 can be arranged in the airway between the output end of the air circuit switching device 10 and the breathing circuit of the ventilator to detect the air pressure of the air flow at the output end of the air circuit switching device 10 and Air flow, further, the air circuit switching control circuit 20 can perform preprocessing such as filtering and noise reduction on the data such as the air pressure and air flow, and draw the air flow-lung volume curve and the air pressure-lung volume curve, and collect the air pressure and air flow in real time.
- the ventilator control component can measure the airway resistance, thoracic compliance, thoracic compliance and lung recruitability.
- the negative pressure air outlet branch 70 includes a vacuum pump 71, which is communicated with the second input end, and the vacuum pump 71 is used to flow the second air flow from the output end into the second input end.
- the vacuum pump 71 is used to create negative pressure, so that the second airflow is subjected to the negative pressure, flows from the output end to the second input end, and finally passes through the pressure proportional valve 73 and the air tank 72 in sequence.
- the negative pressure air outlet branch also includes a second pressure sensor 74, the collection end is connected to the gas tank, and the output end is connected to the air circuit switching control circuit, for collecting and outputting the pressure of the air tank.
- the negative pressure outlet branch 70 further includes a pressure proportional valve 73, and the pressure proportional valve 73 is disposed between the vacuum pump 71 and the second input end.
- the pressure proportional valve 73 is provided to regulate the pressure of the second gas flow output to the second input of the ventilator control assembly.
- the negative pressure air outlet branch 70 further includes an air tank 72 , and the air tank 72 is disposed between the pressure proportional valve 73 and the vacuum pump 71 .
- the vacuum pump 71 draws out the air in the air tank 72, so that the air and oxygen in the air tank 72 outputs negative pressure to the pressure proportional valve 73, and the pressure proportional valve 73 adjusts the output to the second input end of the ventilator control assembly.
- the pressure of the second air flow through the arrangement of the air tank 72, the pressure of the second airflow can be made larger, which is beneficial to improve the pressure adjustment range of the second airflow of the ventilator.
- the novel ventilator with expectoration function further includes a pressure sensor connected to the air tank 72 .
- the ventilator further includes a PEEP control device 90, the PEEP control device 90 is connected to the breathing circuit, and the PEEP control device 90 is used to output the third airflow to the breathing circuit at the end of the user's exhalation.
- the input end of the PEEP control device 90 can be connected to the atmosphere, or to the air branch 61 of the positive pressure intake branch 60 , and the output end of the PEEP control device 90 can be connected to the air through the exhaust valve.
- the breathing circuit can also be directly connected to the breathing circuit.
- the connection between the PEEP device and the breathing circuit through the exhaust valve is used as an example.
- the PEEP control device 90 detects whether the user is at the end of breathing.
- the PEEP control device 90 can be connected through the signal acquisition sensor module 40 of the ventilator control assembly, and the aerodynamic data collected by the signal acquisition sensor module 40 can be connected.
- the parameters determine whether the user is at the end of expiration, and when it is determined that the user is at the end of expiration, the gas in the air branch 61 is exhausted to the exhaust valve to increase the pressure of the exhaust valve, thereby hindering the
- the user outputs the gas to the input end of the exhaust valve, so as to provide positive pressure for the user's end-expiration, preventing the user from completely expelling the gas, preventing the early closure of the alveoli, and causing some of them to lose ventilation due to exudation, atelectasis, etc.
- the functional alveoli expand, so that the ventilator of this embodiment can increase the reduced functional residual capacity and achieve the purpose of improving blood oxygen.
- the ventilator further includes a sputum collecting device 100, which is connected to a breathing circuit.
- the sputum collecting device 100 is arranged in parallel with the breathing circuit of the novel ventilator with sputum expectoration function.
- the sputum collecting device 100 can be connected to the breathing circuit, so that when the ventilator works in the expectoration mode, the sputum collecting device 100 can store the sputum coughed up by the user.
- the sputum collecting device 100 can also It can be a separately set sputum collecting pot, so that when the user expects sputum, the sputum can be coughed into the sputum collecting device 100 to ensure hygiene.
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Abstract
一种具有排痰功能的新型呼吸机,包括呼吸机工作组件和气路切换装置(10),呼吸机工作组件包括呼吸管路、正压进气支路(60)、负压出气支路(70),正压进气支路(60)用于连通气源,呼吸管路用于将第一气流输出,负压出气支路(70)用于抽吸气体;气路切换装置(10)具有第一输入端、第二输入端和输出端,输出端和呼吸管路连通,第一输入端连通正压进气支路(60),第二输入端连通负压出气支路(70);气路切换装置(10)具有送气状态和抽气状态,气路切换装置(10)处于送气状态时,输出端和第一输入端连通,气源产生的第一气流由第一输入端流入输出端;呼吸机处于抽气状态时,输出端和第二输入端连通,第二气流由输出端流入第二输入端。
Description
本申请要求于2021年4月15日申请的、申请号为202120780116.7的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及医疗器械技术领域,尤其涉及一种具有排痰功能的新型呼吸机。
在现代临床医学中,呼吸机作为一项能人工替代自主通气功能的有效手段,已普遍用于各种原因所致的呼吸衰竭、大手术期间的麻醉呼吸管理、呼吸支持治疗和急救复苏中,在现代医学领域内占有十分重要的位置。
但是现有的呼吸机只具备呼吸功能,而无法辅助用户咳痰。
本申请提出了一种具有排痰功能的新型呼吸机,旨在解决现有技术中的呼吸机无法辅助用户咳痰的问题。
为解决上述问题,本申请提出了一种具有排痰功能的新型呼吸机,具体的,所述具有排痰功能的新型呼吸机包括呼吸机工作组件和气路切换装置,呼吸机工作组件包括呼吸管路、正压进气支路、负压出气支路,所述正压进气支路用于连通气源,所述呼吸管路用于将所述气源输送的第一气流输出,所述负压出气支路用于产生负压抽吸气体;
所述气路切换装置具有第一输入端、第二输入端和输出端,所述输出端和所述呼吸管路连通,所述第一输入端连通所述正压进气支路,所述第二输入端连通所述负压出气支路;所述气路切换装置具有送气状态和抽气状态,当所述气路切换装置处于抽气状态时,所述输出端和所述第一输入端连通,以使所述气源产生的第一气流由所述第一输入端流入所述输出端;当所述具有排痰功能的新型呼吸机处于送气状态时,所述输出端和所述第二输入端连通,第二气流由所述输出端流入所述第二输入端。
在一实施例中,所述具有排痰功能的新型呼吸机还包括控制组件,所述控制组件和所述气路切换装置连接,所述具有排痰功能的新型呼吸机具有呼吸工作模式和咳痰工作模式,当所述具有排痰功能的新型呼吸机处于呼吸工作模式时,所述控制组件控制所述气路切换装置工作于送气状态;当所述具有排痰功能的新型呼吸机处于咳痰工作模式时,所述控制组件控制所述气路切换装置在所述送气状态和所述抽气状态之间交替切换。
在一实施例中,所述正压进气支路包括氧气支路、空气支路和空氧混合室,所述氧气支路、所述空气支路均与所述空氧混合室连通,所述空气支路、所述氧气支路分别用于与所述空气气源、所述氧气气源连通,所述空氧混合室和所述第一输入端连通。
在一实施例中,所述控制组件还包括传感器组件,所述传感器组件设置于所述第一输出端和所述呼吸管路之间,所述传感器组件和所述控制件连接。
在一实施例中,所述传感器组件包括压力传感器、声音传感器和流量传感器。
在一实施例中,所述负压出气支路包括真空泵,所述真空泵和所述第二输入端连通,所述真空泵用于将第二气流由所述输出端流入所述第二输入端。
在一实施例中,所述负压出气支路还包括压力比例阀,所述压力比例阀设置于所述真空泵和所述第二输入端之间。
在一实施例中,所述负压出气支路还包括气罐,所述气罐设置于所述压力比例阀和所述真空泵之间。
在一实施例中,所述具有排痰功能的新型呼吸机还包括PEEP控制装置,所述PEEP控制装置和所述呼吸管路连接,所述PEEP控制装置用于在用户的呼气终末时,输出第三气流至所述呼吸管路。
在一实施例中,所述具有排痰功能的新型呼吸机还包括集痰装置,所述集痰装置和所述呼吸管路连接。
本申请通过提出一种具有排痰功能的新型呼吸机,具体的,所述具有排痰功能的新型呼吸机包括气路切换装置,所述气路切换装置具有送气状态和抽气状态,从而使所述具有排痰功能的新型呼吸机具有呼吸工作模式和咳痰工作模式,可以控制气路切换装置在送气状态、抽气状态交替切换达到模拟人体咳嗽效果,使得人体的小气道的痰液往主气道移动,最终经第二气流带出人体,实现咳痰工作模式,本申请的呼吸机控制组件可以控制呼吸机工作与呼吸工作模式和咳痰工作模式,同时满足用户的呼吸和咳痰需求。
为了更清楚地说明本申请实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图示出的结构获得其他的附图。
图1为本申请呼吸机控制组件一实施例的电路图;
图2为本申请呼吸机一实施例的结构示意图。
附图标号说明:
标号 | 名称 | 标号 | 名称 |
10 | 气路切换装置 | 22 | 驱动电路 |
20 | 气路切换控制电路 | 41 | 第一压力传感器 |
30 | 痰液淤积传感器 | 42 | 流量传感器 |
40 | 信号采集传感器模组 | 61 | 空气支路 |
50 | 通讯模块 | 62 | 氧气支路 |
60 | 正压进气支路 | 63 | 空氧混合室 |
70 | 负压出气支路 | 71 | 真空泵 |
80 | 输入单元 | 72 | 气罐 |
90 | PEEP控制装置 | 73 | 压力比例阀 |
100 | 集痰装置 | 74 | 第二压力传感器 |
21 | 处理器 |
本申请目的的实现、功能特点及优点将结合实施例,参照附图做进一步说明。
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本申请的一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
需要说明,若本申请实施例中有涉及方向性指示(诸如上、下、左、右、前、后……),则该方向性指示仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等,如果该特定姿态发生改变时,则该方向性指示也相应地随之改变。
另外,若本申请实施例中有涉及“第一”、“第二”等的描述,则该“第一”、“第二”等的描述仅用于描述目的,而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外,若全文中出现的“和/或”的含义为,包括三个并列的方案,以“A和/或B”为例,包括A方案,或B方案,或A和B同时满足的方案。另外,各个实施例间的技术方案可以相互结合,但是必须是以本领域普通技术人员能够实现为基础,当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在,也不在本申请要求的保护范围之内。
本申请提出了一种具有排痰功能的新型呼吸机,具体的,该呼吸机包括呼吸机工作组件和气路切换装置10,呼吸机工作组件包括呼吸管路、正压进气支路60、负压出气支路70,正压进气支路60用于连通气源,呼吸管路用于将气源输送的第一气流输出,负压出气支路70用于产生负压抽吸气体;气路切换装置10具有第一输入端、第二输入端和输出端,输出端和呼吸管路连通,第一输入端连通正压进气支路60,第二输入端连通负压出气支路70;气路切换装置10具有送气状态和抽气状态,当气路切换装置10处于抽气状态时,输出端和第一输入端连通,以使气源产生的第一气流由第一输入端流入输出端;当呼吸机处于送气状态时,输出端和第二输入端连通,第二气流由输出端流入第二输入端。
在本实施例中,所述第一气流可以是自呼吸机的呼吸管路流向人体的气流,所述第二气流可以是自人体流向呼吸机的气流,也就是说,当气路切换装置10处于送气状态时,相对人体来说,所述第一气流的气压大于人体气压,是正气压;当气路切换装置10处于抽气状态时,所述第二气流的气压小于人体气压,是负气压。
其中,其中所述气路切换装置10可以采用电磁换向阀或者其他换向阀实现,此处不做限定,满足切换输出第一气流和第二气流的要求即可。
在一实施例中,呼吸机还包括控制组件,控制组件和气路切换装置10连接,呼吸机具有呼吸工作模式和咳痰工作模式,当呼吸机处于呼吸工作模式时,控制组件控制气路切换装置10工作于送气状态;当呼吸机处于咳痰工作模式时,控制组件控制气路切换装置10在送气状态和抽气状态之间交替切换。
此外,所述具有排痰功能的新型呼吸机还可以包括排气阀,当所述具有排痰功能的新型呼吸机工作于呼吸工作模式,在所述用户吸气时,排气阀关闭,使得用户单独吸入第一气流,在所述用户呼气时,所述排气阀打开,将人体内的气体排出。在所述具有排痰功能的新型呼吸机工作于咳痰工作模式时,所述排气阀处于关闭状态。所述具有排痰功能的新型呼吸机还可以包括呼吸阀,所述呼吸阀可以配合所述具有排痰功能的新型呼吸机控制组件,辅助人体呼吸。
进一步的,所述控制组件包括气路切换控制电路20,所述气路切换控制电路20和所述气路切换装置10的受控端电连接。所述气路切换控制电路20控制所述气路切换装置10的第一输入端和第二输入端交替地与输出端连通;在所述具有排痰功能的新型呼吸机工作于呼吸工作模式时,所述气路切换控制电路20控制所述气路切换装置10的第一输入端与输出端连通。
在本实施例中,所述气路切换控制电路20采用处理器21及气路切换装置10的驱动电路22组合实现,本实施例以气路切换装置10为电磁换向阀为例进行说明,所所述驱动电路22可以是接收到高电平时,控制电磁换向阀接通第一输入端和输出端,驱动电路22可以是接收到低电平时,控制电磁换向阀接通第二输入端和输出端。如此,在控制呼吸机工作于咳痰工作模式时,处理器21可以通过输出PWM信号至驱动电路22,从而可以通过驱动电路22控制电磁换向阀的第一输入端和第二输入端交替地与输出端连通,从而第一气流和第二气流交替低输出至呼吸管路,从而实现对人体的正负交替通气,达到模拟人体咳嗽效果,使得人体的小气道的痰液往主气道移动,最终经第二气流带出人体。
此外,通过调节处理器21输出的PWM信号的占空比,即可调节电磁换向阀第一输入端与输出端接通时间以及第二输入端与输出端的接通时间之间的比例,也即调节呼吸机的呼吸管路输出第一气流和第二气流的比例,使得用户可以根据实际应用的需求选择排痰时间、排痰力度。其中,处理器21输出的PWM信号的占空比可以是固定值,也可以通过传感器等获取用户当前的生命体征,例如痰鸣音等,确定用户当前需求,调节PWM信号的占空比,实现自动排痰。或者,还可以通过按键或者触摸屏的输入单元80触发输出呼吸比控制信号至处理器21,处理器21再根据呼吸比控制信号调节PWM信号的占空比。
在呼吸机工作于呼吸工作模式时,处理器21可以调节输出的PWM信号的占空比为100%,从而实现电磁换向阀的第一输入端与输出端连通,将第一气流输出至呼吸管路;进而通过呼吸管路将第一气流输出至人体,增加肺通气量,辅助人体呼吸。
本申请技术方案通过设置气路切换装置10的第一输入端接入第一气流,气路切换装置10的第二输入端接入第二气流,气路切换装置10的输出端与呼吸机的呼吸管路连接,再通过气路切换控制电路20控制气路切换装置10的第一输入端与输出端连通,将第一气流通过呼吸管路输出至人体,从而辅助用户呼吸,实现呼吸机的呼吸工作模式,本申请还通过气路切换控制电路20控制气路切换装置10的第一输入端和第二输入端与输出端交替连通,从而第一气流和第二气流交替低输出至呼吸管路,从而实现对人体的正负交替通气,达到模拟人体咳嗽效果,使得人体的小气道的痰液往主气道移动,最终经第二气流带出人体,实现咳痰工作模式,相比而言,传统的呼吸机,在用户需要咳痰时,需要先关闭呼吸机,用户再自行咳痰;而本申请的呼吸机在对用户进行呼吸辅助时,在用户需要进行咳痰时,可以直接切换至咳痰工作模式,辅助用户咳痰,实现对呼吸机的智能控制,如此,不仅可帮助用户更好的咳痰,而且在需要咳痰时,无需关闭呼吸机,只需控制气路切换装置10,即可实现从呼吸工作模式切换至咳痰工作模式,辅助用户咳痰,用户可以将痰液通过气管排出。减少插拔气管的操作时间,避免了气管插拔期间,用户无法被辅助呼吸的问题,同时解决了器材切换导致的资源浪费。
在实际应用中,所述具有排痰功能的新型呼吸机控制组件可以控制呼吸机一直工作于呼吸工作模式,辅助用户呼吸;并在通过按键触发或者呼吸机控制组件检测到用户需要咳痰时,切换至咳痰工作模式,辅助用户咳痰,并在通过按键触发或者检测到用户体内的痰液淤积量小于预设值或者咳痰工作模式持续达预设时间的时候,重新切换至呼吸工作模式,继续辅助用户呼吸。
参照图2,在一实施例中,所述具有排痰功能的新型呼吸机控制组件还包括通讯模块50;所述气路切换控制电路20通过所述通讯模块50与外部终端通讯连接;所述气路切换控制电路20还用于经所述通讯模块50接收所述外部终端输出的呼吸比控制信号,并根据所述呼吸比控制信号调整所述气路切换装置10的第一输入端和第二输入端交替地与输出端连通周期。
本实施例中,所述通讯模块50可以是WIFI通信模块、蓝牙通信模块或者移动通信模块,例如2G、3G、4G或者5G移动通信模块,此处不做限定。
所述气路切换控制电路20还用于将信号采集传感器模组40、痰液淤积传感器30采集到的数据实时输出至外部服务器或者外部终端。从而外部服务器或者外部终端可以将接收到的数据进行存储、分析,从而提高数据的利用率;还可以根据分析结果调节输出呼吸比控制信号至所述通讯模块50,本实施例通过通讯模块50接收移动终端输出的呼吸比控制信号,从而可以调节呼气时间和吸气时间的比例,实现呼吸机的无线控制,提高了呼吸机的可控性。
参照图2,在一实施例中,所述具有排痰功能的新型呼吸机还包括:用户输入电路,与所述具有排痰功能的新型呼吸机控制组件电连接,所述用户输入电路用于在被用户触发时,输出呼吸比控制信号至所述具有排痰功能的新型呼吸机控制组件。
本实施例中,所述输入单元80可以是触摸显示屏,也可以是鼠标、键盘或者按键等,此处不做限定。本实施例以触摸显示屏为例进行说明,所述具有排痰功能的新型呼吸机控制组件可以接收触摸屏触发输出的呼吸比控制信号,从而调节输出第一气流和第二气流输出持续时间的比例,也即呼吸比,以适应不同的用户需求。所述触摸显示屏还可以显示呼吸机工作时的气道压强和气道流量等气学参数,以供医生或者用户参考。
在一实施例中,正压进气支路60包括氧气支路62、空气支路61和空氧混合室63,氧气支路62、空气支路61均与空氧混合室63连通,空气支路61、氧气支路62分别用于与空气气源、氧气气源连通,空氧混合室63和第一输入端连通。
其中,所述空气支路61可以通过鼓风电机,将空气排入空氧混合室63,所述氧气支路62空氧是氧气罐72(可以带压力比例阀73)或者医院的供氧***,将氧气排入空氧混合室63,所述空氧混合室63再将氧气和空气混合后输出至呼吸机控制组件的第一输入端;本实施例将空气和氧气混合后形成第一气流,输出至呼吸控制组件,从而在呼吸控制组件输出第一气流至人体时,相比较单独的空气,本实施例的空气和氧气的混合气体能更好的辅助人体呼吸。
在一实施例中,呼吸机的控制组件还包括传感器组件,传感器组件设置于第一输出端和呼吸管路之间,传感器组件和控制件连接。在一实施例中,传感器组件包括压力传感器、声音传感器和流量传感器42。
进一步的,按传感器的功能划分,所述传感器组件包括痰液淤积传感器30和信号采集传感器模组40。痰液淤积传感器30,用于检测痰液淤积量,并输出对应的痰液淤积检测信号;所述气路切换控制电路20用于在根据所述痰液淤积检测信号确定用户存在痰液淤积时,触发所述具有排痰功能的新型呼吸机工作于咳痰工作模式,并控制所述气路切换装置10的第一输入端和第二输入端交替地与输出端连通。其中,所述痰液淤积传感器30可以是声音传感器或者其他能检测痰液淤积量的传感器。
具体地,所述声音传感器采集人体发出的痰鸣音,所述气路切换控制电路20再根据所述痰鸣音的高低频声学特性进行预处理、进行时域、频域以及时频域的处理,得到具有低运算复杂度、强分类特征的低维度统计量,从而根据统计量确定痰液淤积量,并在痰液淤积量大于预设值的时候,控制所述具有排痰功能的新型呼吸机工作于咳痰工作模式,本实施例实现了自动检测痰液淤积量并开启咳痰工作模式,提高了呼吸机的智能化。
在一实施例中,检测痰液淤积量,并输出对应的痰液淤积检测信号的步骤具体包括:
获取用户的呼吸力学参数及增量;
将获取的呼吸力学参数及其增量进行模糊化;
将利用模糊规则将模糊化后的呼吸力学参数及其增量计算模糊痰液淤积量;
将模糊痰液淤积量解模糊为痰液淤积检测信号。
在本实施例中,所述呼吸力学参数包括:气道压和气流量。
本实施例通过设置于所述气路切换装置10的输出端与呼吸机的呼吸管路之间的输出气道上的流量传感器42和第一压力传感器41,以采集呼吸机的输出气道的输出的气流的呼吸力学参数,也即采集人体呼吸时的气道压和气流量。并根据采集到的呼吸力学参数进行统计,获取呼吸力学参数的增量;将呼吸力学参数及其增量进行模糊化。
再设计隶属度函数,并根据医生临床经验便携模糊规则,通过模糊规则将模糊化后的呼吸力学参数及其增量进行模糊推理,从而获取模糊痰液淤积量,最后再通过质心法将模糊痰液淤积量进行解模糊,转换成痰液淤积检测信号并输出。
其中,医生临床经验可以是根据呼吸力学参数,也即通过气道压和气流量确定气道阻力,胸顺应性、胸廓顺应性以及肺可复张性,再根据气道阻力,胸顺应性、胸廓顺应性以及肺可复张性确定用户的痰液淤积量。
当然,所述痰液淤积检测信号也可以采用其他检测方式,此处不做限定。
本实施例实现了自动检测痰液淤积量并开启咳痰工作模式,提高了呼吸机的智能化程度。
信号采集传感器模组40,与所述气路切换控制电路20电连接,所述信号采集传感器模组40用于采集用户的呼/吸气体的参数信息;所述气路切换控制电路20还用于根据所述用户的呼/吸气体的参数信息控制所述气路切换装置10工作。
在本实施例中,所述采集传感器模组可以包括:第一压力传感器41以及流量传感器42;当然也可以包括其他的传感器,此处不做限定。其中,第一压力传感器41以流量传感器42可以设置于所述气路切换装置10的输出端与呼吸机的呼吸管路之间的气道,以检测气路切换装置10输出端的气流的气压以及气流量,进一步地,气路切换控制电路20可以对所述气压以及气流量等数据进行滤波降噪等预处理,绘制出气流量-肺容积曲线以及气压-肺容积曲线,通过实时采集气压和气流量,进而根据气压和气流量实时测量气道阻力,胸顺应性、胸廓顺应性以及肺可复张性,进而呼吸机控制组件可以在气道阻力,胸顺应性、胸廓顺应性以及肺可复张性等参数中的一个或者多个超过预设值时,确定用户需要咳痰,进而控制呼吸机切换至咳痰工作模式,本实施例通过气学参数判断用户是否需要咳痰,提高了判断的准确度。
在一实施例中,负压出气支路70包括真空泵71,真空泵71和第二输入端连通,真空泵71用于将第二气流由输出端流入第二输入端。具体的,真空泵71用于制造负压,使得第二气流受负压作用,从所述输出端流入所述第二输入端,最后依次经过压力比例阀73和气罐72。
所述负压出气支路还包括,第二压力传感器74,采集端与气罐连接,输出端与气路切换控制电路连接,用于采集气罐的压强并输出。
在一实施例中,负压出气支路70还包括压力比例阀73,压力比例阀73设置于真空泵71和第二输入端之间。压力比例阀73的设置是为了调节输出至呼吸机控制组件第二输入端的第二气流的压强。
在一实施例中,负压出气支路70还包括气罐72,气罐72设置于压力比例阀73和真空泵71之间。在实际应用中,所述真空泵71将气罐72中的空气抽出,使得气罐72空氧输出负压至压力比例阀73,压力比例阀73再调节输出至呼吸机控制组件第二输入端的第二气流的压强。本实施例通过气罐72的设置,使得所述第二气流的压强可以做的更加的大,有利于提高呼吸机的第二气流的压强调节范围。在一实施例中,所述具有排痰功能的新型呼吸机还包括和所述气罐72连接的压力传感器。
在一实施例中,呼吸机还包括PEEP控制装置90,PEEP控制装置90和呼吸管路连接,PEEP控制装置90用于在用户的呼气终末时,输出第三气流至呼吸管路。
本实施例中,所述PEEP控制装置90的输入端可以与大气连接,或者与正压进气支路60的空气支路61连接,所述PEEP控制装置90的输出端可以通过排气阀与呼吸管路连接,也可以直接与呼吸管路连接,此处以PEEP装置通过排气阀与呼吸管路连接为例进行说明
所述PEEP控制装置90通过检测用户是否处于呼吸终末,具体地,所述PEEP控制装置90可以通过呼吸机控制组件的信号采集传感器模组40连接,通过信号采集传感器模组40采集的气学参数(气压和气流量)判断用户是否处于呼气终末,并在确定用户处于呼气终末时,将空气支路61的气体排至排气阀,以增大排气阀的压强,继而阻碍用户将气体输出至排气阀的输入端,从而可以为用户的呼气终末提供正压,避免用户将气体完全排除,避免肺泡早期闭合,使一部分因渗出、肺不张等原因失去通气功能的肺泡扩张,从而本实施例的呼吸机可以使减少的功能残气量增加,达到提高血氧的目的。
在一实施例中,呼吸机还包括集痰装置100,集痰装置100和呼吸管路连接。可选地,所述集痰装置100与所述具有排痰功能的新型呼吸机的呼吸管路并联设置。所述集痰装置100可以与所述呼吸管路连接,从而在呼吸机工作于咳痰工作模式时,所述集痰装置100可以存储用户咳出的痰液,当然所述集痰装置100也可以是单独设置的一个集痰罐,从而可以在用户咳痰时,可以将痰液咳至集痰装置100中,保证卫生。
以上所述仅为本申请的可选实施例,并非因此限制本申请的专利范围,凡是在本申请的申请构思下,利用本申请说明书及附图内容所作的等效结构变换,或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。
Claims (10)
- 一种具有排痰功能的新型呼吸机,其中,包括:呼吸机工作组件,包括呼吸管路、正压进气支路、负压出气支路,所述正压进气支路用于连通气源,所述呼吸管路用于将所述气源输送的第一气流输出,所述负压出气支路用于产生负压抽吸气体;气路切换装置,所述气路切换装置具有第一输入端、第二输入端和输出端,所述输出端和所述呼吸管路连通,所述第一输入端连通所述正压进气支路,所述第二输入端连通所述负压出气支路;所述气路切换装置具有送气状态和抽气状态,当所述气路切换装置处于抽气状态时,所述输出端和所述第一输入端连通,以使所述气源产生的第一气流由所述第一输入端流入所述输出端;当所述具有排痰功能的新型呼吸机处于送气状态时,所述输出端和所述第二输入端连通,第二气流由所述输出端流入所述第二输入端。
- 如权利要求1所述的呼吸机,其中,所述具有排痰功能的新型呼吸机还包括控制组件,所述控制组件和所述气路切换装置连接,所述具有排痰功能的新型呼吸机具有呼吸工作模式和咳痰工作模式,当所述具有排痰功能的新型呼吸机处于呼吸工作模式时,所述控制组件控制所述气路切换装置工作于送气状态;当所述具有排痰功能的新型呼吸机处于咳痰工作模式时,所述控制组件控制所述气路切换装置在所述送气状态和所述抽气状态之间交替切换。
- 如权利要求2所述的呼吸机,其中,所述正压进气支路包括氧气支路、空气支路和空氧混合室,所述氧气支路、所述空气支路均与所述空氧混合室连通,所述空气支路、所述氧气支路分别用于与所述空气气源、所述氧气气源连通,所述空氧混合室和所述第一输入端连通。
- 如权利要求3所述的呼吸机,其中,所述控制组件还包括传感器组件,所述传感器组件设置于所述第一输出端和所述呼吸管路之间,所述传感器组件和所述控制件连接。
- 如权利要求4所述的呼吸机,其中,所述传感器组件包括压力传感器、声音传感器和流量传感器。
- 如权利要求3所述的呼吸机,其中,所述负压出气支路包括真空泵,所述真空泵和所述第二输入端连通,所述真空泵用于将第二气流由所述输出端流入所述第二输入端。
- 如权利要求6所述的呼吸机,其中,所述负压出气支路还包括压力比例阀,所述压力比例阀设置于所述真空泵和所述第二输入端之间。
- 如权利要求7所述的呼吸机,其中,所述负压出气支路还包括气罐,所述气罐设置于所述压力比例阀和所述真空泵之间。
- 如权利要求1所述的呼吸机,其中,所述具有排痰功能的新型呼吸机还包括PEEP控制装置,所述PEEP控制装置和所述呼吸管路连接,所述PEEP控制装置用于在用户的呼气终末时,输出第三气流至所述呼吸管路。
- 如权利要求1所述的呼吸机,其中,所述具有排痰功能的新型呼吸机还包括集痰装置,所述集痰装置和所述呼吸管路连接。
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