CN111330122A - Breathing machine with expectoration vibrates function - Google Patents
Breathing machine with expectoration vibrates function Download PDFInfo
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- CN111330122A CN111330122A CN201811548270.0A CN201811548270A CN111330122A CN 111330122 A CN111330122 A CN 111330122A CN 201811548270 A CN201811548270 A CN 201811548270A CN 111330122 A CN111330122 A CN 111330122A
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- 206010036790 Productive cough Diseases 0.000 title claims abstract description 103
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 46
- 238000002644 respiratory therapy Methods 0.000 claims abstract description 36
- 210000004072 lung Anatomy 0.000 claims abstract description 24
- 230000010355 oscillation Effects 0.000 claims abstract description 23
- 208000024794 sputum Diseases 0.000 claims abstract description 22
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- 230000009514 concussion Effects 0.000 claims abstract description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 76
- 239000001301 oxygen Substances 0.000 claims description 76
- 229910052760 oxygen Inorganic materials 0.000 claims description 76
- 239000007789 gas Substances 0.000 claims description 38
- 238000000889 atomisation Methods 0.000 claims description 37
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M16/0006—Accessories therefor, e.g. sensors, vibrators, negative pressure with means for creating vibrations in patients' airways
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/12—Preparation of respiratory gases or vapours by mixing different gases
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
- A61M16/16—Devices to humidify the respiration air
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/0015—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/0027—Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
- A61M2016/0033—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
- A61M2016/0036—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical in the breathing tube and used in both inspiratory and expiratory phase
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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
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/04—Liquids
- A61M2202/0466—Saliva
Abstract
The invention relates to a breathing machine with expectoration and concussion functions, which comprises a respiratory therapy system, an expectoration system and a concussion pulse system; the respiratory therapy system can meet the requirement of a patient for providing aerobic respiratory therapy; the expectoration system is connected with the respiratory therapy system and can be matched with the respiratory therapy system to realize the expectoration work of the patient; the oscillation pulse system is arranged on the respiratory therapy system and can be matched with the respiratory therapy system to apply oscillation pulse airflow on the lung of the patient before expectoration so as to improve the fluidity of sputum in the lung of the patient. The breathing machine with expectoration and oscillation functions provided by the invention can integrate breathing and expectoration into one device, and can greatly improve the therapeutic effect of expectoration.
Description
Technical Field
The invention belongs to the technical field of medical treatment and health, and particularly relates to a breathing machine with expectoration and concussion functions.
Background
For patients who use a breathing machine, particularly after an artificial airway is established, cough reflex is weakened, or sputum can not be automatically discharged mostly due to serious decline of lung function, weak respiratory muscle and the like, and secretion is easy to be retained to block the airway so as to aggravate lung infection. Therefore, for mechanically ventilated patients, manual sputum excretion is required periodically. At present, the sputum suction tube is commonly used for sucking sputum clinically, but the invasive sputum suction mode of the sputum suction tube is very high in local negative pressure, and due to the insertion and movement of the catheter, the airway is easily injured or scars are easily caused, meanwhile, the mechanical ventilation of a patient is interrupted, and in addition, the sputum is not completely removed.
Breathing machine and sputum discharging machine belong to two equipment under the traditional condition: the coordination between the two devices is poor. The sputum excretion machine is basically in a subordinate position, a plurality of sensors are used for judging the working state of respiration, and cough operation is carried out in a non-ideal state, so that the sputum excretion effect is not ideal. While an effective cough is divided into two steps of inspiration and cough, a plurality of consecutive coughs constitutes a treatment cycle. At the moment, the sputum excretion machine is only responsible for the cough stage, and the sputum excretion machine can only amplify the speed of the expiratory air flow, so that the secretion of the patient is taken out of the body by the air flow. In this case, the drawback that the two steps of inspiration and cough are controlled by two devices is very obvious.
For example: the former action of an ideal cough would be deep inspiration, but the ventilator would only work smoothly, and even with a deep inspiration as a sputum evacuator, it would be extremely difficult to capture in advance and use for a cough. Without deep inhalation, the energy of the lung accumulation is weak, the air flow rate for cough is low, and the corresponding treatment effect is difficult to satisfy.
There is also a case: the single cough only displaces the secretion outwards for a section, the secretion is blown back to the lung by the inspiratory airflow of the breathing machine under the general condition, in order to effectively eliminate phlegm finally, the lung is slowly filled by slightly inhaling with small airflow, the secretion is brought out by utilizing the cough, and if the breathing is not performed for slightly inhaling again, the cough is generated. Repeated for a plurality of times to achieve better effect.
The expectoration machine is used alone: expectorants have the ability to inflate the patient's lungs, for example: cough Assist E70, the device has two defects, one is that only one air source (fan) is provided, and the functions of inhaling and exhaling are only to switch the air channel between the air inlet and the air outlet of the fan through a valve, which brings the danger of secondary pollution and cross infection of exhalate. Secondly, the ventilator brings an effect that the alveolus of the lung of the patient is in a swelling state through a series of treatment processes, and the possibility that the alveolus is collapsed again can be realized at intervals when equipment is replaced, so that the treatment effect of the ventilator is reduced.
Disclosure of Invention
Technical problem to be solved
Aiming at the existing technical problems, the invention provides a breathing machine with expectoration and oscillation functions, which integrates breathing and expectoration into one device and exerts the therapeutic effect of expectoration to the maximum extent.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that:
a breathing machine with expectoration and concussion functions comprises a respiratory therapy system, a expectoration system and a concussion pulse system;
the respiratory therapy system can meet the requirement of a patient for providing aerobic respiratory therapy;
the expectoration system is connected with the respiratory therapy system and can be matched with the respiratory therapy system to realize the expectoration work of the patient;
the oscillation pulse system is arranged on the respiratory therapy system and can be matched with the respiratory therapy system to apply oscillation pulse airflow on the lung of the patient before expectoration so as to improve the fluidity of sputum in the lung of the patient.
Preferably, the respiratory therapy system comprises: the breathing interface device, the inspiration branch and the expiration branch;
the respiratory interface device is respectively connected with the inspiration branch and the expiration branch;
the respiratory interface device is arranged at the mouth and the nose of a patient and is used for assisting the respiratory treatment of the patient;
the inspiratory limb is capable of delivering air into the lungs of a patient by means of the respiratory interface device;
the expiration branch is capable of expelling gas expired by the patient by means of the respiratory interface device.
Preferably, the suction branch comprises: an air suction main path, an oxygen branch path and an air branch path;
one end of the inspiration trunk is connected with the oxygen branch and the air branch respectively, and the other end of the inspiration trunk is connected with the breathing interface device;
the oxygen branch is provided with a high-pressure sensor for detecting oxygen pressure and a first flow control device for controlling oxygen flow;
a filter and a silencer are arranged on the air branch;
and an overflow valve, a positive pressure fan, a flow sensor, an air suction valve and a first pressure sensor are sequentially arranged on the air suction trunk from one end connected with the oxygen branch and the air branch to the other end connected with the breathing interface device.
Preferably, the expiratory limb comprises: an expiratory tube, an expiratory valve and a second flow control device;
one end of the expiration pipe is connected with the exhaust port, and the other end of the expiration pipe is connected with the breathing interface device;
the expiratory valve is arranged at the connection position of the expiratory tube and the exhaust port;
the second flow control device is arranged at the joint of the expiration pipe and the respiration interface device.
Preferably, the expectoration system comprises an expectoration branch;
one end of the expectoration branch is connected with an air outlet interface, and the other end of the expectoration branch is connected with the expiration branch and is connected to the expiration pipe between the expiration valve and the second flow control device;
and a filter, a silencer, a negative pressure fan, a second pressure sensor and a expectoration valve are sequentially arranged on the expectoration branch from one end connected with the air outlet port to the other end connected with the expiration branch.
Preferably, the pulse oscillation system comprises: a first voice coil motor and a second voice coil motor;
the first voice coil motor is connected with the overflow valve and is used for controlling the flow regulation of the overflow valve;
the second voice coil motor is connected with the expiratory valve and is used for controlling the flow regulation of the expiratory valve;
the first voice coil motor and the second voice coil motor can respectively control the overflow valve and the exhalation valve to be opened or closed.
Preferably, a pneumatic valve driving auxiliary system is further included;
the pneumatic valve driving auxiliary system comprises a pneumatic valve auxiliary branch and an air pump;
the air pump is connected with the pneumatic valve auxiliary branch and can provide aerodynamic force for the pneumatic valve auxiliary branch;
the pneumatic valve auxiliary branch is also connected with the oxygen branch and controls the connection or disconnection between the pneumatic valve auxiliary branch and the oxygen branch through a pressure switch;
the pneumatic valve auxiliary branch is also respectively connected with the air suction valve and the expectoration valve and is used for respectively and pneumatically assisting the opening or closing of the air suction valve or the expectoration valve.
Preferably, an oxygen calibration system is also included;
the oxygen calibration system is arranged on an air suction main line between the positive pressure fan and the flow sensor;
the pneumatic valve auxiliary branch is connected with the air suction main line through the oxygen calibration system, and oxygen can be accurately conveyed to the air suction main line through the oxygen calibration system.
Preferably, an atomization system is also included;
the atomization system comprises: the atomization branch, and a throttle valve and an electromagnetic switch valve which are arranged on the atomization branch;
one end of the atomization branch is connected with the pneumatic valve auxiliary branch, and the atomization branch can be used for atomizing the medicament by taking oxygen in the pneumatic valve auxiliary branch as a driving source;
the other end of the atomization branch is provided with an atomization outlet;
the atomization outlet atomizes and conveys the medicament to the inspiration branch through the atomization device for treating the patient.
Preferably, the system also comprises a control system and an alarm system;
the control system is respectively connected with the inhalation treatment system, the expectoration system, the oscillation pulse system, the pneumatic valve driving auxiliary system, the oxygen calibration system, the atomization system and the alarm system.
(III) advantageous effects
The invention has the beneficial effects that: the breathing machine with the expectoration concussion function can integrate breathing and expectoration into one device, and can greatly improve the therapeutic effect of expectoration by independently designing several expectoration breathing modes for cough.
The human lung includes a natural mechanism for cleaning mucus. The human lungs have roundworm small cleansing cilia that vibrate at approximately 18 Hz. At this frequency, mucus has a significant phase change from viscous to fluid to thinner secretions. Thus, the cilia work to more easily flow by phase-changing the mucus, thereby loosening the mucus. Once the mucus becomes more fluid, it can be more easily drained.
Intrapulmonary concussion ventilation has been used to support secretion flow in patients. Concussive ventilation typically delivers lower amplitude gas with high frequency (2 to 20Hz) to the lungs in bursts with therapeutic inspiratory and expiratory gas flows with typical breathing rates. This results in internal concussions to the lungs, which open the airways and improve mucus clearance. The integrated oscillation module of the equipment can realize the functions, and is controlled by the same processor as the breathing module and the sputum excretion module. Can effectively work in coordination, and can achieve better treatment effect by timely adjusting feedback signals detected by various sensors.
Drawings
Fig. 1 is a schematic structural diagram of a ventilator with expectoration and concussion functions according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an oscillating pulse to pressure flow during respiration of a ventilator with expectoration and oscillation functions according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an oxygen calibration system in a ventilator with expectoration and concussion functions according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an atomization system of a ventilator with expectoration and concussion functions according to an embodiment of the present invention;
fig. 5 is a schematic diagram of expectoration versus pressure flow in a ventilator with expectoration and concussion functions according to an embodiment of the present invention.
[ description of reference ]
A1: an air inlet; a2: an oxygen interface; a3: a filter; a4: a muffler; a5: a pressure measuring port; a6: an atomization outlet; a7: an air suction port; a8: an exhalation port; a9: increasing the air volume; a10: a respiratory interface appliance; a11: an exhaust port; a12: an air outlet interface;
b1: a positive pressure fan; b2: a negative pressure fan; b3: an air pump;
c1: a one-way valve; c2: a pressure reducing valve; c3: an overflow valve; c4: an oxygen check valve; c5: a throttle valve; c6: an air intake valve; c7: a flow valve; c8: an exhalation valve; c9: a expectoration valve;
d1: a proportional valve; d2: an electromagnetic valve; d3: a first voice coil motor; d4: a first voice coil motor; d5: an on-off valve; d6: a pressure switch;
e1: a high pressure sensor; e2: a first differential pressure sensor; e3: an oxygen sensor; e4: a flow sensor; e5: a first pressure sensor; e6: a second differential pressure sensor; e7: a second pressure sensor;
f1: a pressure sampling tube.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.
Example one
As shown in fig. 1: the embodiment discloses a breathing machine with expectoration and concussion functions, which comprises a respiratory therapy system, an expectoration system and a concussion pulse system.
The respiratory therapy system can meet the requirement of a patient for providing aerobic respiratory therapy;
the expectoration system is connected with the respiratory therapy system and can be matched with the respiratory therapy system to help the patient expectorate.
The oscillation pulse system is arranged on the respiratory therapy system and can be matched with the respiratory therapy system to apply oscillation pulse airflow on the lung of the patient before expectoration so as to improve the fluidity of sputum in the lung of the patient.
In detail, see fig. 1 for a representation: the respiratory therapy system in this embodiment includes: respiratory interface device, inspiration branch and expiration branch.
The respiratory interface device is respectively connected with the inspiration branch and the expiration branch; the respiratory interface device is arranged at the mouth and the nose of a patient and is used for assisting the respiratory therapy of the patient.
It should be noted that: the respiratory interface device can be a respiratory mask-shaped structure, is arranged at the mouth and nose of a patient and is used for assisting the respiratory therapy of the patient; an inhalation port A7 and an exhalation port A8 are also provided on the respiratory interface device.
The air suction port A7 is used for connecting the air suction branch; the exhalation port A8 is used for connecting an exhalation branch.
In addition, the respiratory interface device described in this embodiment is further provided with a sputum discharging port for discharging sputum expectorated by the patient in the expectoration oscillation mode.
The inspiratory limb is capable of delivering air into the lungs of a patient by means of the respiratory interface device;
the expiration branch is capable of expelling gas expired by the patient by means of the respiratory interface device.
Regarding the inspiration branch: the suction branch described in this embodiment includes: an inspiratory trunk, an oxygen shunt, and an air shunt.
One end of the inspiration trunk is connected with the oxygen branch and the air branch respectively, and the other end of the inspiration trunk is connected with the breathing interface device.
Here, it should be noted that: the air branch is used for introducing fresh air and introducing the introduced fresh air into the air suction main line; in addition, the oxygen shunt is used for introducing oxygen, and the introduced oxygen is introduced into the air suction main line; the fresh air and the oxygen introduced into the inspiration trunk form mixed gas for breathing of the patient.
In detail, a high pressure sensor E1 for detecting the oxygen pressure and a first flow control device for controlling the oxygen flow are provided on the oxygen branch.
The first flow control device is used for controlling the amount of the introduced oxygen.
In addition, the air branch described in this embodiment is provided with a filter A3 and a silencer a 4. The filter A3 and the silencer a4 described herein are used to improve the quality of the intake air and reduce the noise of the air branch during operation.
An overflow valve C3, a positive pressure fan B1, a flow sensor E4, an inhalation valve C6 and a first pressure sensor E5 are sequentially arranged on the inhalation air trunk from one end connected with the oxygen branch and the air branch to the other end connected with the respiratory interface device.
The positive pressure fan B1 is used for providing boosting force for the mixed gas to be introduced into the lung of a patient for inspiration, and the flow sensor E4 is used for detecting the flow of the mixed gas in an inspiration branch; an inspiratory valve C6 is used to control the inspiratory branch to connect or disconnect the respiratory interface device.
With respect to the expiratory limb, the expiratory limb in this embodiment includes: an exhalation tube, exhalation valve C8, and a second flow control device;
one end of the expiration pipe is connected with an exhaust port A11, and the other end of the expiration pipe is connected with the respiratory interface device;
the exhalation valve C8 is arranged at the connection of the exhalation tube and the exhaust port A11;
the second flow control device is arranged at the joint of the expiration pipe and the respiration interface device.
As shown in fig. 1, the expectoration system described in this embodiment includes an expectoration branch.
One end of the expectoration branch is connected with an air outlet interface A12, the other end of the expectoration branch is connected with the expiration branch, and the expectoration branch is connected with the expiration pipe between the expiration valve C8 and the second flow control device.
A filter A3, a silencer A4, a negative pressure fan B2, a second pressure sensor E7 and a expectoration valve C9 are sequentially arranged on the expectoration branch from one end connected with the air outlet port A12 to the other end connected with the exhalation branch.
As shown in fig. 1 and 2: the pulse oscillation system described in this embodiment includes: a first voice coil motor D3 and a second voice coil motor D4.
The first voice coil motor D3 is connected with the overflow valve C7 and is used for controlling the flow regulation of the overflow valve C7; the second voice coil motor D4 is connected with the expiratory valve C8 and is used for controlling the flow regulation of the expiratory valve C8.
The first voice coil motor D3 and the second voice coil motor D4 can respectively control the overflow valve C7 and the expiratory valve C8 to open or close.
As shown in fig. 1, the ventilator described in this embodiment further includes a pneumatic valve driving assistance system. In detail, the pneumatic valve driving assist system includes a pneumatic valve assist branch and an air pump B3.
The air pump B3 is connected with the pneumatic valve auxiliary branch and can provide pneumatic power for the pneumatic valve auxiliary branch.
The pneumatic valve auxiliary branch is also connected with the oxygen branch and controls the communication or disconnection between the pneumatic valve auxiliary branch and the oxygen branch through a pressure switch D6.
The pneumatic valve auxiliary branch is also respectively connected with the inhalation valve C6 and the expectoration valve C9, and is used for respectively and pneumatically assisting the opening or closing of the inhalation valve C6 or the expectoration valve C9.
As shown in fig. 3: the ventilator described in this embodiment also includes an oxygen calibration system.
The oxygen calibration system is arranged on an air suction main line between the positive pressure fan B1 and the flow sensor; the pneumatic valve auxiliary branch is connected with the air suction main line through the oxygen calibration system, and oxygen can be accurately conveyed to the air suction main line through the oxygen calibration system.
As shown in fig. 4: the ventilator described in this embodiment further includes a nebulizing system.
Specifically, the atomization system comprises: the atomizing branch road with set up throttle valve and the electromagnetic switch valve on the atomizing branch road.
One end of the atomization branch is connected with the pneumatic valve auxiliary branch, and the atomization branch can be used as a driving source by means of oxygen in the pneumatic valve auxiliary branch to atomize the medicament.
And the other end of the atomization branch is provided with an atomization outlet A6.
The atomization outlet A6 atomizes and delivers the medicament to the inspiration branch through the atomizing device for the treatment of the patient.
Finally, it should be noted that: the ventilator further comprises a control system and an alarm system.
The control system is respectively connected with the inhalation treatment system, the expectoration system, the oscillation pulse system, the pneumatic valve driving auxiliary system, the oxygen calibration system, the atomization system and the alarm system.
The control system may be a central processing unit or other intelligent system capable of controlling the coordinated operation of the inhalation therapy system, expectoration system, concussion pulse system, pneumatic valve driving auxiliary system, oxygen calibration system, atomization system and alarm system.
Example two
The specific implementation mode is divided into the following system descriptions: respiratory therapy system, expectoration system, concussion pulse system, alarm system, other auxiliary systems.
This embodiment adopts the mode of breathing in, expectoration branch road double fan, and expectoration exhaust gas discharges after exhausting branch road filtration, does not have the physics intercommunication with the branch road of breathing in, has avoided cross infection's risk.
Respiratory therapy system, see fig. 1. High-pressure oxygen is introduced into the system from an oxygen interface A2, passes through a filter A3 and a one-way valve C1, is controlled to be in a proper range by a pressure reducing valve C2, and is output to an inlet of a positive pressure fan B1 under the control of a proportional valve D1. Ambient air passes through the filter A3 and the muffler a4 via the air inlet a1, is sucked in by the positive pressure fan B1 together with oxygen, and the mixed gas is pressurized by the positive pressure fan B1 (the pressure/flow rate of the mixed gas is adjusted by the relief valve C3), passes through the air inlet a7, and is output to a patient. This process is an inspiratory process.
The patient lung gas is exhausted from the exhalation valve C8 (or exhausted through the air release structure of the respiratory interface appliance A10) through the exhalation port A8 under the elastic action of the thoracic muscles and thorax. This process is an exhalation process, during which expectoration valve C10 is in a closed state. The breathing function is completed by the cycle alternation of inspiration and expiration. During respiration, the flow valve C7 and the flow sensor E4 monitor the flow of the system, the high-pressure sensor E1 detects the pressure of the oxygen gas source, the first pressure sensor E5 monitors the system pressure, and the oxygen correction valve C4 monitors the oxygen concentration of the inhaled gas.
The central processing unit makes corresponding response according to the collected signals of pressure, flow, oxygen concentration and the like, and adjusts working parameters of a proportional valve, a fan, an air suction valve, a breather valve and the like, thereby achieving the expected treatment effect.
A expectoration system: referring to fig. 1 and 5, the expectoration system comprises part of the inspiratory branch and expectoration branch of the respiratory system. The positive pressure blower B1 delivers pressurized air to the patient's lungs through the inlet port a 7. And (3) finishing the inspiration process, wherein the corresponding electromagnetic valve is powered off, the inspiration valve C6 is in an open state, the expiration valve C8 and the expectoration valve C9 are in a closed state, and the air overflow port of the respiratory interface appliance A11 is closed. And (3) closing the suction valve C6, opening the expectoration valve C9, quickly discharging the air in the lungs of the patient to the inlet of the negative pressure fan B2, and closing the expectoration valve C9 to finish the cough process when the parameters such as the pressure of the patient reach a preset state. The air exhausted by the negative pressure fan passes through a silencer A4, and a filter A3 exhausts the equipment from an air outlet port A12. During the cough process, the inhalation valve C6 and the exhalation valve C8 are in a closed state, and the air overflow port of the respiratory interface appliance A10 is closed. The processes of air suction and expectoration are called sputum excretion processes, and the negative pressure fan B2 is always in a working state in the whole sputum excretion process. The central processing unit can make corresponding response according to the flow and pressure signals to adjust the working states of the fan and the valve in due time. Thereby achieving the expected therapeutic effect.
An oscillation pulse system: implementation principle referring to fig. 1, the principle of oscillation is that a certain amount of gas is instantaneously charged and discharged under the condition of a certain relatively stable volume according to an ideal gas state equation, so that a positive pressure fluctuation can be generated (a schematic diagram of oscillation pulse to pressure flow in the breathing process is shown in fig. 2). Conversely, a certain amount of gas is instantaneously discharged and filled, and a negative pressure fluctuation can be generated. By this principle, during inspiration or breathing, the first voice coil motor D3 controls the overflow valve C3, which momentarily adds a certain amount of gas to the system in a manner that reduces the overflow (phase change is understood to mean increasing the gas) to create a pressure increase in the relatively stable chamber, and the second voice coil motor D4 controls the exhalation valve C8 to vent the corresponding gas to restore the pressure in the chamber. Thus, a pressure fluctuation is generated, and the oscillating rapping effect of a positive pressure pulse can be formed by controlling the pressure fluctuation for a plurality of times (for example, 10 times in 1 second) in a short time. The reverse control sequence controls the breather valve and the overflow valve, so that the vibration percussion effect of one negative pressure pulse can be achieved. After a pressure is caused by introducing a liters of gas into the cavity, the gas in the cavity is discharged a + b liters, and then the a + b liters of gas are introduced for reciprocating circulation to form a positive and negative alternative pulse oscillation rapping effect.
Other auxiliary systems:
pneumatic valve drive assist system: see fig. 1. In the principle system, the oxygen correcting valve C4, the air suction valve C6 and the expectoration valve C9 adopt a pilot gas driving mode, the gas circuit purging and cleaning function of the flow valve C7 (removing accumulated liquid and dust in the pressure sampling pipe F1 by using driving gas) also needs driving gas, and the gas of the atomization gas circuit comes from the system. The source of the drive gas is from the gas stabilized by the pressure reducing valve C2 and the gas pump B3. When the outlet pressure of the pressure reducing valve C2 is larger than the set value of the pressure switch D6, the pressure switch D6 cuts off the power supply of the electromagnetic valve D2 and the air pump B3, and the driving system adopts oxygen as a driving air source. When the oxygen gas circuit pressure is lower than the set value of the pressure switch D6, the pressure switch turns on the power supply of the electromagnetic valve D2 and the air pump B3. The driving system adopts an air pump as a driving air source.
Since the response speed of the pilot air-operated valve and the instantaneous air supply amount of the pilot actuator have a certain relationship, the air volume a9 is increased in the system, and the instantaneous air supply amount is increased to increase the response speed of each pilot air-operated valve.
Oxygen calibration system: referring to FIG. 3, the oxygen calibration system is only available when the pneumatically driven auxiliary system is in a condition where oxygen is used as the driving gas source. Solenoid D6 and solenoid D5 are de-energized, indicating the center diaphragm of the oxygen check valve C4 is low. And introducing ambient air into the oxygen calibration valve by using a fan B1 to calibrate the low initial point state parameters of the oxygen sensor.
Two solenoid valves D2 circular telegrams, and oxygen drive gas produces the pressure differential at the front and back both ends of choke valve C5, promotes the diaphragm and shifts up, seals oxygen sensor E3 in a confined space, and the export of choke valve C5 connects confined space simultaneously, and oxygen is discharged the other gas in confined space outside the space from the solenoid valve for the space is full of oxygen, marks the pure oxygen state parameter of proofreading oxygen sensor.
An atomization system: see fig. 4. The atomization system can only be used when the pneumatically driven auxiliary system is in a state where oxygen is used as a driving gas source. The oxygen drive gas flow passes through throttle C5, outputting the drive gas at a constant flow rate through on-off valve D5 to the atomizing outlet a 6. The switching valve D5 is switched on and off in response to the time of inhalation. And atomizing and conveying the medicament into the breathing pipeline by the atomization driving gas through the atomization device.
The technical principles of the present invention have been described above in connection with specific embodiments, which are intended to explain the principles of the present invention and should not be construed as limiting the scope of the present invention in any way. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive efforts, which shall fall within the scope of the present invention.
Claims (10)
1. A breathing machine with expectoration and concussion functions is characterized by comprising a respiratory therapy system, an expectoration system and a concussion pulse system;
the respiratory therapy system can meet the requirement of a patient for providing aerobic respiratory therapy;
the expectoration system is connected with the respiratory therapy system and can be matched with the respiratory therapy system to help the patient expectorate;
the oscillation pulse system is arranged on the respiratory therapy system and can be matched with the respiratory therapy system to apply oscillation pulse airflow on the lung of a patient before expectoration so as to improve the fluidity of sputum in the lung of the patient.
2. The ventilator of claim 1,
a respiratory therapy system comprising: the breathing interface device, the inspiration branch and the expiration branch;
the breathing interface device is respectively connected with the inspiration branch and the expiration branch;
the breathing interface device is arranged at the mouth and the nose of a patient and is used for assisting the breathing treatment of the patient;
the inspiratory branch is capable of delivering air into the patient's lungs by means of the respiratory interface device;
the expiration branch enables the gas expired by the patient to be discharged by means of the breathing interface device.
3. The ventilator of claim 2,
the branch of breathing in includes: an air suction main path, an oxygen branch path and an air branch path;
one end of the inspiration trunk is respectively connected with the oxygen branch and the air branch, and the other end of the inspiration trunk is connected with the breathing interface device;
the oxygen branch is provided with a high-pressure sensor for detecting oxygen pressure and a first flow control device for controlling oxygen flow;
the air branch is provided with a filter and a silencer;
an overflow valve, a positive pressure fan, a flow sensor, an air suction valve and a first pressure sensor are sequentially arranged on the air suction trunk from one end connected with the oxygen branch and the air branch to the other end connected with the breathing interface device.
4. The ventilator of claim 3,
the expiration branch road includes: an expiratory tube, an expiratory valve and a second flow control device;
one end of the expiratory tube is connected with the exhaust port, and the other end of the expiratory tube is connected with the respiratory interface device;
the expiratory valve is arranged at the connection part of the expiratory tube and the exhaust port;
the second flow control device is arranged at the joint of the expiration pipe and the respiration interface device.
5. The ventilator of claim 3,
the expectoration system comprises an expectoration branch;
one end of the expectoration branch is connected with the air outlet interface, and the other end of the expectoration branch is connected with the expiration branch and is connected with an expiration pipe between the expiration valve and the second flow control device;
and a filter, a silencer, a negative pressure fan, a second pressure sensor and a expectoration valve are sequentially arranged on the expectoration branch from one end connected with the air outlet interface to the other end connected with the expiration branch.
6. The ventilator of claim 5,
the pulse oscillation system comprises: a first voice coil motor and a second voice coil motor;
the first voice coil motor is connected with the overflow valve and used for controlling the flow regulation of the overflow valve;
the second voice coil motor is connected with the expiratory valve and is used for controlling the flow regulation of the expiratory valve;
the first voice coil motor and the second voice coil motor can respectively control the overflow valve and the expiratory valve to be opened or closed.
7. The ventilator of claim 6,
the pneumatic valve driving auxiliary system is also included;
the pneumatic valve driving auxiliary system comprises a pneumatic valve auxiliary branch and an air pump;
the air pump is connected with the pneumatic valve auxiliary branch and can provide pneumatic power for the pneumatic valve auxiliary branch;
the pneumatic valve auxiliary branch is also connected with the oxygen shunt and controls the connection or disconnection between the pneumatic valve auxiliary branch and the oxygen shunt through a pressure switch;
the pneumatic valve auxiliary branch is also respectively connected with the air suction valve and the expectoration valve and used for respectively pneumatically assisting the opening or closing of the air suction valve or the expectoration valve.
8. The ventilator of claim 7,
an oxygen calibration system is also included;
the oxygen calibration system is arranged on an air suction main line between the positive pressure fan and the flow sensor;
the pneumatic valve auxiliary branch is connected with the air suction main line through an oxygen calibration system, and oxygen can be accurately conveyed to the air suction main line through the oxygen calibration system.
9. The ventilator of claim 8,
also comprises an atomization system;
the atomization system comprises: the atomization branch, and a throttle valve and an electromagnetic switch valve which are arranged on the atomization branch;
one end of the atomization branch is connected with the pneumatic valve auxiliary branch, and the atomization branch can be used for atomizing the medicament by taking oxygen in the pneumatic valve auxiliary branch as a driving source;
the other end of the atomization branch is provided with an atomization outlet;
the atomization outlet atomizes and conveys the medicament to the inspiration branch through the atomization device for the treatment of patients.
10. The ventilator of claim 9,
the system also comprises a control system and an alarm system;
the control system is respectively connected with the respiratory therapy system, the expectoration system, the oscillation pulse system, the pneumatic valve driving auxiliary system, the oxygen calibration system, the atomization system and the alarm system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811548270.0A CN111330122A (en) | 2018-12-18 | 2018-12-18 | Breathing machine with expectoration vibrates function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811548270.0A CN111330122A (en) | 2018-12-18 | 2018-12-18 | Breathing machine with expectoration vibrates function |
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| CN111330122A true CN111330122A (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811548270.0A Pending CN111330122A (en) | 2018-12-18 | 2018-12-18 | Breathing machine with expectoration vibrates function |
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| CN113750337A (en) * | 2021-09-24 | 2021-12-07 | 首都医科大学附属北京世纪坛医院 | Pernasal foam-driven oscillating air passage gallery cleaning device |
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