CN111603642A - A kind of ventilation intelligent compensation adjustment ventilator - Google Patents

Abstract

The invention discloses a ventilation intelligent compensation adjustment ventilator, which comprises a ventilator body, an MCU and a user breathing end, wherein a pneumatic electric adjustment module is arranged inside the ventilator body, and an air inlet end of the pneumatic electric adjustment module is connected to a gas connection The inlet, the output end of the air pressure electric adjustment module is connected to the airflow pressure buffer module, and the airflow output end of the airflow pressure buffer module is connected to the user's breathing end; a differential pressure flow is arranged inside the ventilator body and at the output end of the airflow pressure buffer module. The sensor and the first pressure sensor; the pneumatic electric adjustment module, the differential pressure flow sensor and the first pressure sensor are all electrically connected with the MCU. The invention can monitor the breathing state of the patient, intelligently compensate and adjust the airflow pressure according to the breathing state of the patient, help the patient to maintain the best breathing state, and provide a strong guarantee for the patient's lung treatment.

Description

A kind of ventilation intelligent compensation adjustment ventilator

technical field

The invention belongs to the technical field of medical ventilator equipment, in particular to a ventilation intelligent compensation adjustment ventilator.

Background technique

In modern clinical medicine, 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. A ventilator is a vital medical device that can prevent and treat respiratory failure, reduce complications, and save and prolong patients' lives.

Common signs of coronavirus include respiratory symptoms, fever, cough, shortness of breath, and difficulty breathing. In more severe cases, the infection can lead to pneumonia, severe acute respiratory syndrome, kidney failure, and even death. There is currently no specific treatment for the disease caused by the new coronavirus. However, many symptoms are manageable and therefore need to be treated according to the patient's clinical situation.

In the management of the new coronavirus, critically ill patients cannot breathe on their own and must rely on ventilators to maintain the oxygen they need for life. Therefore, in this epidemic, ventilators have played a very important role in the treatment of critically ill patients.

Providing the best breathing state for the patient can have a multiplier effect on the recovery of the patient. When the patient's breathing state is insufficient, it will lead to hypoxia and affect the treatment; when the patient's breathing state is too high, it will cause secondary trauma to the lungs and delay the patient's treatment; in addition, the turbulent airflow generated by the existing ventilator may also cause damage to the patient. secondary trauma.

In this regard, how to intelligently compensate and adjust the breathing state of the user by the ventilator is a technical problem urgently solved by those skilled in the art.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the above problems and provide a ventilation intelligent compensation adjustment ventilator, which can monitor the breathing state of the patient, and intelligently compensate and adjust the airflow pressure according to the breathing state of the patient, so as to help the patient maintain the best breathing state. , provides a strong guarantee for the patient's lung treatment.

In order to achieve the above purpose, the technical solution adopted in the present invention is: it includes a ventilator body, an MCU and a user breathing end, wherein, the ventilator body is provided with an air pressure electric adjustment module, and the air inlet end of the air pressure electric adjustment module is connected to a gas connection. The inlet, the output end of the air pressure electric adjustment module is connected to the airflow pressure buffer module, and the airflow output end of the airflow pressure buffer module is connected to the user's breathing end; a pressure differential flow is set inside the ventilator body and located at the output end of the airflow pressure buffer module The sensor and the first pressure sensor; the pneumatic electric adjustment module, the differential pressure flow sensor and the first pressure sensor are all electrically connected with the MCU. The air pressure electric adjustment module can use a high-precision ventilation flow control system provided by the patent number: CN201610925331.5, or can use a motor-driven impeller to control the air pressure, which is not further limited in the present invention.

The differential pressure flow sensor and the first pressure sensor respectively obtain the gas flow and pressure output by the pneumatic electric adjustment module, and the MCU obtains the detection data of the differential pressure flow sensor and the first pressure sensor and displays it on the display screen.

The present invention can be directly connected to filtered air or oxygen. The specific structure is as follows: the gas inlet includes an air inlet and an oxygen inlet, wherein the air inlet is provided with filter cotton.

In order to display the breathing state of the user, it also includes a display screen for displaying parameters obtained from the breathing state of the user, and the display screen is electrically connected to the MCU.

The display screen is provided with a touch panel or buttons for information input, and information can be entered and manipulated by means of touch or keys.

In order to realize remote control, it also includes a bluetooth module for establishing data connection with the smart device, and the bluetooth module is electrically connected to the MCU.

In order to realize remote control, it also includes a USB module for establishing data connection with the smart device, and the USB module is electrically connected with the MCU.

In order to realize remote control, it also includes a network module for establishing data connection with the smart device, and the network module is electrically connected with the MCU.

In order to realize remote control, the smart device adopts any one of a smart phone, a tablet computer and a computer.

It also includes an alarm for early warning of abnormal breathing, and the alarm is electrically connected with the MCU. When the ventilator detects that the user's breathing state is abnormal, the alarm will start and give an early warning to ensure the user's breathing safety.

In order to detect the oxygen content and air supply pressure of the user's breathing end, it also includes an oxygen sensor and a second pressure sensor for detecting the oxygen content and air supply pressure of the user's breathing end. The second pressure sensor is installed on the outside of the ventilator body. The channel between the gas output of the ventilator and the user's breathing end is provided with an external aid airflow connector, and the second pressure sensor is connected to the external aid airflow connector; after the external aid airflow of the ventilator passes through an independent humidifier, bacterial filter and other equipment, it can be directly connected to the external aid. The airflow is connected to the nozzle, and the second pressure sensor detects the airflow pressure input from the external aid airflow of the ventilator to the user's breathing end. When the second pressure sensor detects that the external air flow of the ventilator is blocked, the MCU controls the air pressure of the air pressure electric regulation module inside the ventilator to perform pressure compensation, or controls the pressure of the external air flow of the ventilator to perform pressure compensation through an interface such as a USB connection.

The inside of the ventilator body is provided with a muffler box, an airflow pressure buffer module and an air pressure electric adjustment module, wherein the airflow pressure buffer module is made of porous elastic material, and the muffler box is provided with a chamber for accommodating the air pressure electric adjustment module; The air pressure buffer module is provided with a curved air flow channel, and the air outlet end of the pneumatic electric adjustment module in the muffler box is connected and communicated with the air flow channel. The noise generated by the pneumatic electric adjustment module during operation is eliminated in the muffler box. After the airflow from the pneumatic electric adjustment module passes through the airflow pressure buffer module, the turbulent airflow can become more stable and comfortable, and the patient is in the lungs. When the infection is very serious, it can relieve symptoms, reduce the trauma caused by the disorder to the lungs, make breathing softer and more comfortable, and relieve the pain of the patient.

In order to improve the smoothing effect of the output airflow, the material of the airflow pressure buffer module is preferably sponge.

The air flow passage includes a first passage, a second passage and a third passage in sequence from the air inlet end to the air outlet end, wherein the first passage and the third passage are arranged in parallel, and the second passage is perpendicular to the first passage and the third passage. There are three channels, and the connection between the second channel and the first channel and the third channel passes through an arc transition, thereby improving the smoothing effect of the output air flow and improving the comfort. The air inlet end and the air outlet end of the air flow channel are respectively provided with a first pipeline joint and a second pipeline joint for connection of pipelines.

In order to realize the connection and transition between the air outlet end of the air pressure electric regulation module and the air flow channel in the air pressure buffer module, an air outlet joint is arranged on the shell of the muffler box, and one end of the air outlet joint is provided with an inlet matching the air outlet end of the air pressure electric regulation module. The other end of the air outlet connector is provided with an air outlet connector matched with the air flow channel, and the air outlet connector is connected to the first pipeline connector through.

The first passage, the second passage and the third passage have the same aperture size without reducing the pressure to make the airflow smooth.

Under the condition that the pressure is not reduced to make the airflow smooth, the outlet nozzle is provided with a conical transition channel for connecting the inner hole of the inlet nozzle to the airflow channel through.

In specific use, the user's height can be input into the system to estimate the user's physiological dead space; the flow rate of each breath is detected by a differential pressure flow sensor, and the tidal volume of each breath can be obtained; The value of tidal volume - the value of physiological dead space = the value of alveolar ventilation; the value of alveolar ventilation is displayed on the display screen, so as to accurately reflect the user's breathing state; the value of target alveolar ventilation is manually set in the system range; when the actual alveolar ventilation value is lower than the minimum value of the target alveolar ventilation value, the system will increase the breathing pressure through the air pressure electric adjustment module; when the actual alveolar ventilation value is higher than the maximum value of the target alveolar ventilation value , the system will reduce the breathing pressure through the air pressure electric adjustment module; the fastest three breathing cycles can complete one adjustment of pressure increase or decrease; the fastest three breathing cycles can complete one pressure increase or decrease adjustment.

In specific use, the user's weight can also be input into the system, and the target tidal volume range of the user can be estimated. The tidal volume of a normal person is 8-10 mL/kg; the flow rate of each breath is detected by a differential pressure flow sensor. The tidal volume of each breath is obtained; the value of the tidal volume is displayed on the display screen; the numerical range of the target tidal volume is manually set in the system; when the value of the actual tidal volume is lower than the minimum value of the target tidal volume , the system will increase the breathing pressure through the air pressure electric adjustment module; when the actual tidal volume value is higher than the maximum value of the target tidal volume value, the system will reduce the breathing pressure through the air pressure electric adjustment module; the fastest three breathing cycles complete the pressure increase or Reduced one adjustment.

Beneficial effects of the present invention: the ventilator provided by the present invention can monitor the breathing state of the patient, intelligently compensate and adjust the airflow pressure according to the breathing state of the patient, and help the patient maintain the best breathing state , provides a strong guarantee for the patient's lung treatment.

The ventilation intelligent compensation adjustment ventilator provided by the invention has stable output airflow and strong comfort, can avoid secondary damage to the patient's lungs caused by airflow disturbance, and helps the patient to overcome difficulties.

In the present invention, the first pressure sensor is used to check the air outlet pressure of the ventilator, and the second pressure sensor is used to monitor the user end pressure. The first pressure sensor and the second pressure sensor can work simultaneously or independently. When the ventilator is connected to the user through the pipeline, it is not necessary to connect the external air flow to the mouth, which can ensure the accurate pressure, and at the same time, there is no external pressure measuring tube, which is convenient to use and simple to operate. When the equipment passes through the independent humidifier, bacterial filter and other equipment, it can be connected to the external pressure measuring port, and the resistance of the respiratory airway can be calculated through the internal and external pressure measurement to provide pressure compensation for breathing control. The external measurement of user-end pressure data can be synchronized with breathing, and the pressure stability is higher.

Description of drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic structural diagram of the muffler box and the airflow pressure buffer module in the present invention.

FIG. 3 is a schematic cross-sectional structure diagram at A-A in FIG. 2 .

FIG. 4 is a flow chart of the control method using the input height and alveolar ventilation range in Embodiment 1. FIG.

FIG. 5 is a flow chart of the control method using the input body weight and tidal volume ranges in Embodiment 2. FIG.

Figure 6 is a schematic diagram of the change in correlation between height and physiological dead space.

The text in the figure is marked as follows: 1. Ventilator body; 2. Muffler box; 3. Air pressure electric adjustment module; 4. Airflow pressure buffer module; 5. Differential pressure flow sensor; 6. First pressure sensor; 7. Oxygen sensor; 8. User breathing end; 9. External aid airflow nozzle; 10. Second pressure sensor; 11. Button; 12. Alarm; 13. MCU; 14. Display screen; 15. Bluetooth module; 16. USB module; 17, network module; 18, oxygen inlet; 19, air inlet; 20, filter cotton; 41, intake nozzle; 42, third channel; 43, second pipeline connector; 44, second channel; 45, the first channel; 46, the first pipeline joint; 47, the tapered transition channel; 48, the air outlet; 49, the air outlet.

Detailed ways

In order to make those skilled in the art better understand the technical solutions of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present invention. .

Example 1:

As shown in FIG. 1, the specific structure of the present invention is as follows: it includes a ventilator body 1, an MCU13 and a user breathing end 8, wherein the ventilator body 1 is provided with a pneumatic electric adjustment module 3, and the air pressure electric adjustment module 3 The gas end is connected to the gas inlet, the output end of the air pressure electric adjustment module 3 is connected to the airflow pressure buffer module 4, and the airflow output end of the airflow pressure buffer module 4 is connected to the user's breathing end 8; The output end of the module 4 is provided with a differential pressure flow sensor 5 and a first pressure sensor 6 ; the pneumatic electric adjustment module 3 , the differential pressure flow sensor 5 and the first pressure sensor 6 are all electrically connected to the MCU 13 .

In this embodiment, as shown in FIG. 1 , the differential pressure flow sensor 5 and the first pressure sensor 6 obtain the gas flow and pressure output by the pneumatic electric regulating module 3 respectively, and the MCU 13 obtains the differential pressure flow sensor 5 and the first pressure. The detection data of the sensor 6 is displayed on the display screen 14 .

In this embodiment, as shown in FIG. 1 , the present invention can be directly connected to filtered air or oxygen. The specific structure is as follows: the gas inlet includes an air inlet 19 and an oxygen inlet 18, wherein, The air inlet 19 is provided with a filter cotton 20 .

In this embodiment, as shown in FIG. 1 , in order to display the breathing state of the user, it further includes a display screen 14 for displaying parameters obtained from the breathing state of the user, and the display screen 14 is electrically connected to the MCU. The display screen 14 is provided with a touch panel or a button 11 for information input, and information can be input and manipulated by means of touch or keys.

In this embodiment, as shown in FIG. 1 , in order to realize remote control, it further includes a Bluetooth module 15 , a USB module 16 and a network module 17 for establishing a data connection with a smart device. The Bluetooth module 15 , the USB module 16 , the network module 17 is electrically connected with the MCU. The smart device is any one of a smartphone, a tablet, and a computer.

In this embodiment, as shown in FIG. 1 , it further includes an alarm 12 for early warning of abnormal breathing, and the alarm 12 is electrically connected to the MCU. When the ventilator detects that the user's breathing state is abnormal, the alarm 12 will start and give an early warning to ensure the safety of the user's breathing.

In this embodiment, as shown in FIG. 1, in order to detect the oxygen content and air supply pressure at the user's breathing end, it also includes an oxygen sensor 7 and a second pressure sensor 10 for detecting the oxygen content and air supply pressure at the user's breathing end, The second pressure sensor 10 is installed on the outside of the ventilator body 1, the passage between the gas output of the ventilator body 1 and the user's breathing end 8 is provided with an external aid airflow connection nozzle 9, and the second pressure sensor 10 is connected with the external aid airflow connection nozzle 9; After the external air flow of the ventilator passes through the independent humidifier, bacterial filter and other equipment, it can be directly connected to the external air flow nozzle 9, and the second pressure sensor 10 detects the air pressure of the external air flow of the ventilator input to the user's breathing end 8. When the second pressure sensor 10 detects that the external air flow of the ventilator is blocked, the MCU controls the pressure of the air flow of the air pressure electric regulation module 3 inside the ventilator to perform pressure compensation, or controls the pressure of the external air flow of the ventilator to perform pressure compensation through an interface such as a USB connection.

In this embodiment, as shown in Figures 2-3, the ventilator body 1 is provided with a muffler box 2, an airflow pressure buffer module 4 and an air pressure electric adjustment module 3, wherein the airflow pressure buffer module 4 is made of porous material Elastic material, the muffler box 2 is provided with a chamber for accommodating the pneumatic electric adjustment module 3; the airflow pressure buffer module 4 is provided with a curved airflow channel, and the air outlet end of the pneumatic electric adjustment module 3 in the muffler box 2 is connected to the The air flow channels are connected through. The noise generated by the pneumatic electric adjustment module 3 during operation is eliminated in the muffler box 2. After the airflow from the pneumatic electric adjustment module 3 passes through the airflow pressure buffer module 4, the turbulent airflow can become more stable and comfortable. In the case of severe lung infection, the patient can relieve symptoms, reduce the trauma caused by the disorder to the lungs, and breathe more softly and comfortably, reducing the pain of the patient.

In this embodiment, as shown in FIG. 3 , in order to improve the smoothing effect of the output airflow, the material of the airflow pressure buffer module 4 is preferably sponge.

In this embodiment, as shown in FIG. 3 , the air flow passage includes a first passage 45 , a second passage 44 and a third passage 42 in sequence from the air inlet end to the air outlet end, wherein the first passage 45 and the third passage 42 are arranged in parallel, the second channel 44 is perpendicular to the first channel 45 and the third channel 42, and the connection between the second channel 44 and the first channel 45 and the third channel 42 passes through an arc transition, thereby improving the output airflow. Smoothing effect for improved comfort. A first pipeline joint 46 and a second pipeline joint 43 are respectively provided at the air inlet end and the air outlet end of the airflow channel for connection of pipelines.

In this embodiment, as shown in FIG. 3 , in order to realize the connection and transition between the air outlet end of the pneumatic electric adjustment module 3 and the air flow channel in the air pressure buffer module 4, an air outlet joint 49 is provided on the shell of the muffler box 2, and the air outlet One end of the joint 49 is provided with an air inlet nozzle 41 that matches the air outlet end of the pneumatic electric adjustment module 3, and the other end of the air outlet joint 49 is provided with an air outlet nozzle 48 that matches the airflow channel. The way joint 46 is connected through.

In this embodiment, as shown in FIG. 3 , under the condition that the pressure is not reduced to stabilize the airflow, the apertures of the first passage 45 , the second passage 44 and the third passage 42 are the same in size.

In this embodiment, as shown in FIG. 3 , without reducing the pressure to make the airflow smooth, the outlet nozzle 48 is provided with a tapered transition channel 47 for connecting the inner hole of the inlet nozzle 41 to the airflow channel through. .

In specific use, the user's height can be input in the system to estimate the user's physiological dead space; the flow rate of each breath is detected by the differential pressure flow sensor 5, and the tidal volume of each breath can be obtained; using each breath The value of the tidal volume - the value of the physiological dead space = the value of the alveolar ventilation; the value of the alveolar ventilation is displayed on the display screen, so as to accurately reflect the user's breathing state; the target alveolar ventilation is manually set in the system. Value range; when the actual alveolar ventilation value is lower than the minimum value of the target alveolar ventilation value, the system will increase the breathing pressure through the air pressure electric adjustment module 3; when the actual alveolar ventilation value is higher than the maximum value of the target alveolar ventilation value When the value is reached, the system will reduce the breathing pressure through the air pressure electric adjustment module 3; the fastest three breathing cycles can complete one adjustment of pressure increase or decrease; the fastest three breathing cycles can complete one pressure increase or decrease adjustment.

Example 2:

In this embodiment, as shown in FIG. 1, the specific structure of the present invention is as follows: it includes a ventilator body 1, an MCU13 and a user breathing end 8, wherein the ventilator body 1 is provided with an air pressure electric adjustment module 3, and the air pressure The air inlet end of the electric adjustment module 3 is connected to the gas inlet, the output end of the air pressure electric adjustment module 3 is connected to the airflow pressure buffer module 4, and the airflow output end of the airflow pressure buffer module 4 is connected to the user's breathing end 8; the interior of the ventilator body 1 And the output end of the airflow pressure buffer module 4 is provided with a differential pressure flow sensor 5 and a first pressure sensor 6; the pneumatic electric adjustment module 3, the differential pressure flow sensor 5 and the first pressure sensor 6 are all electrically connected to the MCU13 .

In this embodiment, as shown in FIG. 1 , the differential pressure flow sensor 5 and the first pressure sensor 6 obtain the gas flow and pressure output by the pneumatic electric regulating module 3 respectively, and the MCU 13 obtains the differential pressure flow sensor 5 and the first pressure. The detection data of the sensor 6 is displayed on the display screen 14 .

In this embodiment, as shown in FIG. 1 , the present invention can be directly connected to filtered air or oxygen. The specific structure is as follows: the gas inlet includes an air inlet 19 and an oxygen inlet 18, wherein, The air inlet 19 is provided with a filter cotton 20 .

In this embodiment, as shown in FIG. 1 , in order to display the breathing state of the user, it further includes a display screen 14 for displaying parameters obtained from the breathing state of the user, and the display screen 14 is electrically connected to the MCU. The display screen 14 is provided with a touch panel or a button 11 for information input, and information can be input and manipulated by means of touch or keys.

In this embodiment, as shown in FIG. 1 , in order to realize remote control, it further includes a Bluetooth module 15 , a USB module 16 and a network module 17 for establishing a data connection with a smart device. The Bluetooth module 15 , the USB module 16 , the network module 17 is electrically connected with the MCU. The smart device is any one of a smartphone, a tablet, and a computer.

In this embodiment, as shown in FIG. 1 , it further includes an alarm 12 for early warning of abnormal breathing, and the alarm 12 is electrically connected to the MCU. When the ventilator detects that the user's breathing state is abnormal, the alarm 12 will start and give an early warning to ensure the safety of the user's breathing.

In this embodiment, as shown in FIG. 1, in order to detect the oxygen content and air supply pressure at the user's breathing end, it also includes an oxygen sensor 7 and a second pressure sensor 10 for detecting the oxygen content and air supply pressure at the user's breathing end, The second pressure sensor 10 is installed on the outside of the ventilator body 1, the passage between the gas output of the ventilator body 1 and the user's breathing end 8 is provided with an external aid airflow connection nozzle 9, and the second pressure sensor 10 is connected with the external aid airflow connection nozzle 9; After the external air flow of the ventilator passes through the independent humidifier, bacterial filter and other equipment, it can be directly connected to the external air flow nozzle 9, and the second pressure sensor 10 detects the air pressure of the external air flow of the ventilator input to the user's breathing end 8. When the second pressure sensor 10 detects that the external air flow of the ventilator is blocked, the MCU controls the pressure of the air flow of the air pressure electric regulation module 3 inside the ventilator to perform pressure compensation, or controls the pressure of the external air flow of the ventilator to perform pressure compensation through an interface such as a USB connection.

In this embodiment, as shown in Figures 2-3, the ventilator body 1 is provided with a muffler box 2, an airflow pressure buffer module 4 and an air pressure electric adjustment module 3, wherein the airflow pressure buffer module 4 is made of porous material Elastic material, the muffler box 2 is provided with a chamber for accommodating the pneumatic electric adjustment module 3; the airflow pressure buffer module 4 is provided with a curved airflow channel, and the air outlet end of the pneumatic electric adjustment module 3 in the muffler box 2 is connected to the The air flow channels are connected through. The noise generated by the pneumatic electric adjustment module 3 during operation is eliminated in the muffler box 2. After the airflow from the pneumatic electric adjustment module 3 passes through the airflow pressure buffer module 4, the turbulent airflow can become more stable and comfortable. In the case of severe lung infection, the patient can relieve symptoms, reduce the trauma caused by the disorder to the lungs, and breathe more softly and comfortably, reducing the pain of the patient.

In this embodiment, as shown in FIG. 3 , in order to improve the smoothing effect of the output airflow, the material of the airflow pressure buffer module 4 is preferably sponge.

In this embodiment, as shown in FIG. 3 , the air flow passage includes a first passage 45 , a second passage 44 and a third passage 42 in sequence from the air inlet end to the air outlet end, wherein the first passage 45 and the third passage 42 are arranged in parallel, the second channel 44 is perpendicular to the first channel 45 and the third channel 42, and the connection between the second channel 44 and the first channel 45 and the third channel 42 passes through an arc transition, thereby improving the output airflow. Smoothing effect for improved comfort. A first pipeline joint 46 and a second pipeline joint 43 are respectively provided at the air inlet end and the air outlet end of the airflow channel for connection of pipelines.

In this embodiment, as shown in FIG. 3 , in order to realize the connection and transition between the air outlet end of the pneumatic electric adjustment module 3 and the air flow channel in the air pressure buffer module 4, an air outlet joint 49 is provided on the shell of the muffler box 2, and the air outlet One end of the joint 49 is provided with an air inlet nozzle 41 that matches the air outlet end of the pneumatic electric adjustment module 3, and the other end of the air outlet joint 49 is provided with an air outlet nozzle 48 that matches the airflow channel. The way joint 46 is connected through.

In this embodiment, as shown in FIG. 3 , under the condition that the pressure is not reduced to stabilize the airflow, the apertures of the first passage 45 , the second passage 44 and the third passage 42 are the same in size.

In this embodiment, as shown in FIG. 3 , without reducing the pressure to make the airflow smooth, the outlet nozzle 48 is provided with a tapered transition channel 47 for connecting the inner hole of the inlet nozzle 41 to the airflow channel through. .

In specific use, the user's weight can also be input into the system to estimate the user's target tidal volume range. The tidal volume of a normal person is 8-10 mL/kg; the flow rate of each breath is detected by the differential pressure flow sensor 5 , the tidal volume of each breath is obtained; the value of the tidal volume is displayed in the display screen 14; the numerical range of the target tidal volume is manually set in the system; when the value of the actual tidal volume is lower than the lowest value of the target tidal volume When the value of the actual tidal volume is higher than the maximum value of the target tidal volume, the system will reduce the breathing pressure through the air pressure electric adjustment module 3; the fastest three breathing cycles Complete one adjustment of pressure increase or decrease.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus.

Specific examples are used herein to illustrate the principles and implementations of the present invention, and the descriptions of the above examples are only used to help understand the method and the core idea of the present invention. The above are only the preferred embodiments of the present invention. It should be pointed out that due to the limited expression of words, there are objectively unlimited specific structures. For those of ordinary skill in the art, without departing from the principles of the present invention However, some improvements, modifications or changes can also be made, and the above-mentioned technical features can also be combined in an appropriate manner; these improvements, modifications, or combinations, or the concept and technical solutions of the invention are directly applied to other occasions without improvement. should be regarded as the protection scope of the present invention.

Claims (10)

1. A ventilation intelligent compensation adjustment ventilator, characterized in that it comprises a ventilator body (1), an MCU (13) and a user breathing end (8), wherein the ventilator body (1) is internally provided with a pneumatic electric motor The adjustment module (3), the air inlet end of the pneumatic electric adjustment module (3) is connected to the gas inlet port, the output end of the pneumatic electric adjustment module (3) is connected to the airflow pressure buffer module (4), and the airflow of the airflow pressure buffer module (4) The output end is connected to the user's breathing end (8); a differential pressure flow sensor (5) and a first pressure sensor (6) are arranged inside the ventilator body (1) and at the output end of the airflow pressure buffer module (4) ; The pneumatic electric adjustment module (3), the differential pressure flow sensor (5) and the first pressure sensor (6) are all electrically connected to the MCU (13). 2 . The ventilation intelligent compensation adjustment ventilator according to claim 1 , wherein the gas inlet port comprises an air inlet port ( 19 ) and an oxygen inlet port ( 18 ), wherein the air inlet port ( 19 ) is provided with a Filter cotton (20). 3. The ventilator for ventilation intelligent compensation adjustment according to claim 1, characterized in that it further comprises a display screen (14) for displaying the parameters obtained by the user's breathing state, the display screen (14) being connected to the display screen (14) The MCU is electrically connected as described above. 4 . The ventilator according to claim 3 , wherein a touch panel or a button ( 11 ) for information input is provided on the display screen ( 14 ). 5 . 5. The ventilator according to claim 1, characterized in that it further comprises a Bluetooth module (15) for establishing a data connection with a smart device, the Bluetooth module (15) being connected to the MCU electrical connection. 6. The ventilator according to claim 1, characterized in that it further comprises a USB module (16) for establishing a data connection with a smart device, the USB module (16) being connected to the MCU electrical connection. 7. A ventilator for ventilation intelligent compensation adjustment according to claim 1, characterized in that it further comprises a network module (17) for establishing a data connection with a smart device, the network module (17) being connected to the MCU electrical connection. 8 . The ventilator for ventilation intelligent compensation adjustment according to claim 6 , wherein the intelligent device adopts any one of a smart phone, a tablet computer and a computer. 9 . 9. The ventilator according to claim 1, characterized in that it further comprises an alarm (12) for early warning of abnormal breathing, and the alarm (12) is electrically connected to the MCU. connect. 10 . The ventilation intelligent compensation adjustment ventilator according to claim 1 , wherein the airflow pressure buffer module ( 4 ) is made of a porous elastic material, and the muffler box ( 2 ) is provided with an interior for accommodating air pressure. 11 . The chamber of the electric adjustment module (3); the airflow pressure buffer module (4) is provided with a curved airflow channel, and the air outlet end of the pneumatic electric adjustment module (3) in the muffler box (2) is connected to the airflow channel through .

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