CN206880920U - A kind of lung ventilator - Google Patents
A kind of lung ventilator Download PDFInfo
- Publication number
- CN206880920U CN206880920U CN201720056370.6U CN201720056370U CN206880920U CN 206880920 U CN206880920 U CN 206880920U CN 201720056370 U CN201720056370 U CN 201720056370U CN 206880920 U CN206880920 U CN 206880920U
- Authority
- CN
- China
- Prior art keywords
- interface
- pressure
- lung ventilator
- negative pressure
- expectoration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
A kind of lung ventilator is the utility model is related to, it includes control system, air-breathing module and expiration module, and its expiration module includes：Switching valve, it has first interface, second interface, and for switching on or off the switch member of first interface and second interface；Expiration branch road, its first end connection patient end, its second end connects the first interface of switching valve；Expectoration branch road, its first end connect the second interface of switching valve, and its second end connects the negative port of negative pressure source；And pressure regulator valve, located at expiration branch road, for maintaining the gas pressure of expiration branch road, gas pressure includes malleation P within a predetermined range+With negative pressure P‑.Whereby, lung ventilator of the present utility model, negative pressure expectoration function is added on the basis of existing lung ventilator, the normal cough of people can be simulated, solve the problems, such as undergoing mechanical ventilation in clinical patient's expectoration difficulties, moreover, for existing lung ventilator and sputum elimination machine are applied in combination, structure of the present utility model is simpler, compact.
Description
Technical field
The utility model belongs to medicine and hygiene fieldses, more particularly to a kind of lung ventilator.
Background technology
Lung ventilator is widely used in clinical treatment, is that one kind can play prevention and treatment respiratory failure, reduces complication, draw
Rescue and extend the vital Medical Devices of patients ' lives；The normal physiologic respiration of people can be replaced, controlled or changed, is increased
Pulmonary ventilation volume, improve respiratory function, mitigate work of breathing ozone.
Lung ventilator is in use, often different for the different patient of autonomous respiration ability, the respiration parameter of setting.
But existing lung ventilator can not all assess the autonomous respiration ability of patient, the parameter setting of suggestion can not be provided.Therefore, mesh
Whether preceding reasonably to judge for arrange parameter, be largely dependent upon the experience of doctor, especially patient slowly departs from and exhaled
The process of suction machine is, it is necessary to the trial of doctor slowly.
It is often necessary to carry out the patient of mechanical ventilation using lung ventilator, often weak with autonomous expectoration ability, there is phlegm in lung
The problem of liquid deposits.The patient of many mechanical ventilations, can be because the Arterial blood gas difference of apparatus causes serious pulmonary infection, seriously
Meeting cause death.At present, expectoration means clinically include sputum aspirator tube suction sputum, extrasomatic vibration sputum discharge machine, mechanical suction and discharge formula
Sputum elimination machine, and the negative pressure sputum elimination machine that can be used in conjunction with lung ventilator.But these existing expectoration means are respectively provided with certain limitation
Property, such as：Sputum aspirator tube can not clear up the sputum in lung deep, and be intrusive mood operation, easily cause air flue to scratch, and bring into thin
Bacterium；External oscillatory type sputum elimination machine can only be such that sputum loosens, it is necessary to coordinate other means to excrete sputum；Mechanical suction and discharge formula
Sputum elimination machine is needed to disconnect lung ventilator, and Patients with Mechanical Ventilation is had a great influence；The sputum elimination machine that can be used in conjunction with lung ventilator, although very
It can be solved the above problems in big degree, but be still unavoidable from having an impact the mechanical ventilation of patient, and can cause to exhale
Suction machine is alarmed, and is made troubles to Clinical practice.It follows that current lung ventilator all can not bring foot in terms of expectoration to patient
Enough help.
In addition, carrying out the patient of mechanical ventilation for long-term use of lung ventilator, often occur that the useless of respiratory muscle is withered with property
Contracting, patient is set to produce ventilator dependency, can not off line.Although current lung ventilator can help patient to solve asking for hypoventilation
Topic, it but can do nothing to help the ability that patient recovers autonomous respiration.
For example, Application No. CN201310010089.5 Chinese invention patent application provides and a kind of has expectoration function
Lung ventilator, lung ventilator is combined by it with sputum elimination machine, to realize while human body respiration is aided in, assists patient to discharge lung's phlegm
Liquid.But it still has the disadvantage that：Firstth, respiratory muscle is not monitored and treated；Secondth, it is remained as in lung ventilator
Increase single negative pressure branch road outside gas circuit, the branch road of expectoration is not dissolved into lung ventilator gas circuit really, the system of adding is answered
It is miscellaneous while spend, the work of the two can not be coordinated well；3rd, the negative pressure source of the lung ventilator is by air accumulator and vacuum pump group
Into structure is excessively simple, it is difficult to the requirement of balancing equipment volume and equipment validity：If the volume of air accumulator is small or vacuum
The flow of pump is small, and when carrying out expectoration operation, the pressure of air accumulator is difficult quickly to establish, and forms continuous effective expectoration, very
It can extremely cause patient's exhaust insufficient；If the volume of air accumulator is sufficiently large or the flow of vavuum pump is enough big, machine can seem
It is heavy；4th, its negative pressure branch road does not have enough safety and monitoring mechanism to ensure the safety of patient.
In summary, this area needs a kind of more excellent solution, can preferably solve Patients with Mechanical Ventilation process
In the problems such as expectoration that runs into is smooth, breathing amyotrophia.
Utility model content
(1) technical problems to be solved
In order to solve the above mentioned problem of prior art, the utility model provides a kind of lung ventilator, and it can be by breathing, row
Phlegm, respiratory muscle monitoring and treatment are organically integrated into a whole, and while Breathing Suppotion is provided, can monitor patient respiratory
The state of flesh, help the more excellent setting ventilator parameter of medical personnel；The cough of intelligence simulation people during expectoration, help patient will
The secretion discharge in lung deep；And the respiratory muscle of patient can be helped to recover as early as possible, help to remove machine ahead of time.
(2) technical scheme
In order to achieve the above object, the main technical schemes that the utility model uses include：
A kind of lung ventilator, it includes：
Control system；
Air-breathing module, is connected with control system；
Expiration module,
Characterized in that, the expiration module includes：
Switching valve, it is connected with control system, it has first interface, second interface, and for switching on or off first
The switch member of interface and second interface,
Expiration branch road, its first end connection patient end, its second end connect the first interface of switching valve,
Expectoration branch road, its first end connect the second interface of switching valve, and its second end connects the negative port of negative pressure source,
Pressure regulator valve, located at expiration branch road, it is connected with control system, for maintaining the gas pressure of expiration branch road in predetermined model
In enclosing, gas pressure includes malleation P+With negative pressure P-。
By the setting of said structure, lung ventilator of the present utility model, negative pressure is added on the basis of existing lung ventilator
Expectoration function, the normal cough of people can be simulated, solve the problems, such as undergoing mechanical ventilation in clinical patient's expectoration difficulties；It is moreover, relative
For existing lung ventilator and sputum elimination machine are applied in combination, structure of the present utility model is simpler, it is compact, in particular to, exhale
During gas, switching valve is in closed mode, only uses expiration branch road, and utilize the malleation P of pressure regulation valve regulation expiration branch road+, during expectoration,
Switching valve in opened condition, using switching valve is connected in series expiration branch road and expectoration branch road for expectoration, and utilizes pressure regulator valve
Adjust the negative pressure P of expectoration branch road-。
The lung ventilator of the utility model one embodiment, its negative pressure source are provided with gas appearance, blower fan and air pump, wherein, gas holds
With accommodation space and first interface in communication, second interface and the 3rd interface, blower fan is held by first interface to gas to be taken out
Gas so that accommodation space reaches the first negative pressure P1, and air pump is held by second interface to gas to be evacuated so that accommodation space reaches second
Negative pressure P2, the first negative pressure P1 absolute value are less than the second negative pressure P2 absolute value, and the 3rd interface that gas holds forms the negative of negative pressure source
Crimp mouth.Whereby, following defect existing for the negative pressure source in existing lung ventilator can be overcome：Because flow mutually restricts with negative pressure
Cause to be difficult while realize big flow and big negative pressure, while often bring the volume of negative pressure source, noise excessive both satisfaction etc.
Problem, the negative pressure source in lung ventilator of the present utility model can realize high negative pressure and big flow simultaneously, and can reach lower
Noise level, smaller volume and lower energy consumption etc., especially, when starting expectoration, using blower fan quickly by gas hold in take out
To certain negative pressure value, the pressure during then air pump further holds gas is extracted into lower predetermined negative pressure so that cough starts rank
Section forms the flow velocity of peak value, and later stage flow velocity declined, and pressure value also drops to relatively low negative pressure, make on airflow waveform closer to
The air-flow normally coughed, later stage less negative pressure is also preferably to protect to patient, and the whole exhalation process of patient can all be felt
To much smoother.
The lung ventilator of the utility model one embodiment, wherein, negative pressure source is additionally provided with check valve, and check valve holds located at gas
First interface and blower fan negative pressure end between, optionally from gas hold to blower fan ventilate.For example, after exhaust fan terminates or
Person closes check valve, is advantageous to the formation of further negative pressure before air pump pumping.
The lung ventilator of the utility model one embodiment, wherein, negative pressure source also includes safety valve and baroceptor, is located at
Between the 3rd interface that second end of expectoration branch road and gas hold.Put preferably, safety valve is installed with close to gas, baroceptor is close
3rd interface is set.
The lung ventilator of the utility model one embodiment, wherein, pressure regulator valve is provided with positive pressure interface and negative port simultaneously, just
Crimping mouth is used to maintain malleation P+Within a predetermined range, negative port is used to maintain negative pressure P-Within a predetermined range.
Preferably, pressure regulator valve is located at expiration branch road close to one end of switching valve.
The lung ventilator of the utility model one embodiment, wherein, the positive pressure interface and negative port of pressure regulator valve are to set side by side
Two interfaces put.
The lung ventilator of the utility model one embodiment, wherein, the positive pressure interface and negative port of pressure regulator valve are same
Interface, when interface forward direction is opened, it is positive pressure interface, is negative port when the reverse interface is opened.
The lung ventilator of the utility model one embodiment, wherein, malleation P+Predetermined adjustment scope be 0~80cmH2O。
The lung ventilator of the utility model one embodiment, wherein, negative pressure P-Predetermined adjustment scope for -10~-
150cmH2O。
The lung ventilator of the utility model one embodiment, it is also synchronized with the movement module including respiratory muscle, and respiratory muscle is synchronously transported
Dynamic model block includes being used for the respiratory muscle checking with EMG method submodule for monitoring respiratory muscle electromyographic signal.Whereby, exhaling for patient can be detected
Inhale myokinesis situation.
The lung ventilator of one preferred embodiment of the utility model, its also include respiratory muscle strength evaluation submodule, for pair
Respiratory muscle strength is evaluated, and used reference signal includes respiratory muscle electromyographic signal, such as the inspection of respiratory muscle myoelectricity during evaluation
Survey the respiratory muscle electromyographic signal that submodule detects to obtain.
Wherein, the method for evaluating respiratory muscle strength is, according to the autonomous gettering ability of patient, cough of choking dynamics, diaphram myoelectricity
Signal intensity, the autonomous respiration ability of patient is divided into some levels.For example, lowest level is complete apnea, it is proposed that is used
Control model is ventilated；Highest level is can be with entirely autonomous breathing, it is proposed that using autonomous respiration ventilating mode or attempts off line.
The lung ventilator of one preferred embodiment of the utility model, it also includes excellent for optimizing man-machine synchronous man-machine synchronization
Beggar's module, optimizing reference signal used in man-machine synchronization includes respiratory muscle electromyographic signal, such as respiratory muscle checking with EMG method
Module detects obtained respiratory muscle electromyographic signal.
The lung ventilator of one preferred embodiment of the utility model, its respiratory muscle are synchronized with the movement module also including respiratory muscle stimulation
Submodule, respiratory muscle activity and the positive airway pressure of lung ventilator for synchronous patient.Whereby, patient respiratory flesh can be stimulated to make it
The muscular movement synchronous with positive airway pressure is produced, more preferable simulation eupnea, the respiratory muscle caused by mechanical ventilation is reduced and gives up
Move back, be advantageous to keep the vigor of respiratory muscle, make patient to recover as early as possible, off line.
Wherein, respiratory muscle stimulates submodule preferably to include diaphragm nerve stimulation unit and abdominal muscle stimulating unit.
During implementation, the stimulation sites of diaphragm nerve stimulation unit are Huo Zhexiang at both sides nutator lower edge 1/3rd
At portion's phrenic nerve root；The stimulating electrode of abdominal muscle stimulating unit is located at rectus aabdominis and/or musculus trasversus abdomins.
The lung ventilator of the utility model one embodiment, it also includes parameter display module, and parameter display module includes flesh
Electro-detection result display sub-module and respiratory muscle strength for patients evaluation result display sub-module.For example, the ripple of display checking with EMG method
Shape and the scoring to respiratory muscle strength for patients.
The lung ventilator of the utility model one embodiment, its control system include parameter setting module, wherein, parameter setting
Module includes：Expectoration negative pressure is set when pressure of inspiration(Pi) sets submodule, expectoration when air-breathing tidal volume sets submodule, expectoration during expectoration
Put submodule, inspiratory airflow vibration sets submodule, expiratory airflow vibration sets submodule and respiratory muscle is synchronized with the movement, and module is joined
Count any one in setting submodule or appoint several.
The lung ventilator of the utility model one embodiment, it is provided with expectoration simultaneously when air-breathing tidal volume set submodule and
Tidal volume during eupnea sets submodule, and the two can be independently arranged.
The lung ventilator of the utility model one embodiment, pressure of inspiration(Pi) sets submodule and just it is provided with expectoration simultaneously when
Often pressure of inspiration(Pi) during breathing sets submodule, and the two can be independently arranged.
(3) beneficial effect
The beneficial effects of the utility model are：
Lung ventilator of the present utility model adds negative pressure expectoration function on the basis of existing lung ventilator, can simulate people's
Normal cough, solves the problems, such as undergoing mechanical ventilation in clinical patient's expectoration difficulties, and its structure is simpler, compact.
The respiratory muscle of the utility model lung ventilator is synchronized with the movement module, can detect the respiratory muscle activity feelings of patient in real time
Condition, with reference to breathing mechanics parameters, the respiration capability of patient is preferably assessed, objective respiration capability evaluation is provided, helps clinical
Determine remedy measures.Meanwhile respiratory muscle stimulating module can synchronous patient respiratory muscle activity and the positive airway pressure of lung ventilator, side
Help patient to keep and reply the muscular strength of respiratory muscle, while reduce the generation just weighed wounded.
Brief description of the drawings
Fig. 1 is the gas circuit schematic diagram of the lung ventilator of the utility model one embodiment.
【Description of reference numerals】
1：Turbofan；2：Pressure maintaining valve；3：Flow control valve；4：Flowmeter；5：Hybrid chamber；6：Switch valve；7：Oscillator；
8：Flowmeter；9：Safety valve；10：Baroceptor；11：Baroceptor；12：Turbofan；13：Air pump；14：Gas holds；15：
Safety valve；16：Switching valve；17：Pressure regulator valve；18：Oscillator；19：Flowmeter；20：Baroceptor；21：Pressure sensor；
22：Check valve；23：Filter.
Embodiment
It is below in conjunction with the accompanying drawings, right by embodiment in order to understand in order to preferably explain the utility model
The utility model is described in detail.
The lung ventilator of the utility model one embodiment, it includes control system, air-breathing module and expiration module, described to exhale
Gas module includes：
Switching valve, it has first interface, a second interface, and for switching on or off first interface and second interface
Switch member；
Expiration branch road, its first end connection patient end, its second end connects the first interface of switching valve；
Expectoration branch road, its first end connect the second interface of switching valve, and its second end connects the negative port of negative pressure source；
Pressure regulator valve, located at expiration branch road, for maintaining the gas pressure of expiration branch road within a predetermined range, gas pressure bag
Include malleation P+With negative pressure P-。
By the setting of said structure, lung ventilator of the present utility model, negative pressure is added on the basis of existing lung ventilator
Expectoration function, the normal cough of people can be simulated, solve the problems, such as undergoing mechanical ventilation in clinical patient's expectoration difficulties, moreover, relatively
For existing lung ventilator and sputum elimination machine are applied in combination, ventilator-structure of the present utility model is simpler, compact.
Referring to Fig. 1, the lung ventilator of one preferred embodiment of the utility model, it is providing the same of Breathing Suppotion for patient
When, additionally it is possible to help patient's expectoration, the sputum in cleaning lung deep；Respiratory muscle is synchronized with the movement module simultaneously, can detect patient's
Respiratory muscle moving situation, patient respiratory flesh can also be stimulated it is produced the muscular movement synchronous with positive airway pressure.
Lung ventilator in the present embodiment includes control system, air-breathing module and expiration module, wherein：
Control system, including central control unit, human-computer interaction interface, and the driving of ancillary equipment, for entirely exhaling
The control of suction machine；
Air-breathing module, for producing malleation air-flow, Breathing Suppotion is provided for patient, air-breathing module is connected by inspiration limb
To patient；
Expiration module, for patient exhalation air and patient's expectoration is helped, its expectoration branch road is connected by expiration branch road
To patient.
Wherein, air-breathing module includes：The source of the gas or external air source interface of positive pressure air are produced, and high pressure oxygen connects
The pressure limiting of switch valve, limitation positive pressure range that mouth, mixed oxide structure and oxygen concentration testing agency, control inspiration limb connect with patient
What valve (safety valve) 9, the oscillator 7 for making the interior generation air-flow vibration of inspiration limb, control air-breathing module connected with inspiration limb opens
Close valve 6.
In one embodiment of the present utility model, air-breathing module includes turbofan 1, for obtaining positive pressure air；Voltage stabilizing
Valve 2, the pressure for the stable high pressure oxygen inputted；Flow control valve 3, for controlling the flow of oxygen and/or air；Flow
Meter 4, for detecting the oxygen for needing to mix and/or air mass flow size；Hybrid chamber 5, for oxygen and air to be well mixed；
Switch valve 6, control the air-flow break-make of lung ventilator inspiration limb；Oscillator 7, vibration is produced for the air-flow in inspiration limb, its
Frequency of oscillation can be set as 10~30Hz；Flowmeter 8, the gas flow sucked during for determining air-breathing, and can calculate accordingly
Obtain air-breathing tidal volume；Safety valve 9, automatically opened up when malleation is too high in gas circuit, prevent that airline pressure is too high, protection patient's peace
Entirely, for example, it can be set to safe pressure is 8KPa；Filter 23, oxygen and air of the filtering into lung ventilator；Baroceptor
10, for monitoring the pressure of air and oxygen into lung ventilator；Baroceptor 11, for monitoring the mixing of oxygen and air
The pressure of gas.
Wherein, oscillator 7 could be arranged to vibrate in expiratory phase, or only vibrate when holding one's breath, and can also shake all the time
Swing or be closed all the time.
Wherein, expiration module includes negative pressure source, expectoration branch road, switching valve, pressure regulator valve and expiration branch road.
Wherein, negative pressure source includes turbofan 12, negative pressure air pump 13, gas and holds 14.
In use, turbofan 12, which quickly holds gas in 14, is extracted into certain negative pressure value, then air pump 13 is further gas
The pressure held in 14 is extracted into lower predetermined negative pressure.
Preferably, also include check valve 22, pressure limiting valve 15 and pressure sensor 21.
In one embodiment of the present utility model, expiration module includes turbofan 12, for producing low pressure and mass flow gas
Stream, such as the flow more than 150L/min can be produced；Air pump 13, for producing high negative, such as 200cmH can be produced2O's
Negative pressure；Gas holds and 14 is used as negative pressure cavity, prepares sufficiently large negative pressure and volume before expectoration starts, for example, its capacity can for 2~
5L；Safety valve (negative pressure pressure limiting valve) 15, for preventing gas from holding, 14 negative pressure are too high, and protection gas circuit is safe, when gas holds the negative pressure in 14
When reaching certain threshold value, safety valve (pressure limiting valve) 15 automatically opens up pressure release；Switching valve 16, for switching expectoration branch road, expiration branch
Road, switching valve 16 is closed during normal exhalation, and negative pressure gas holds 14 and isolated with expiration branch road, and the opening of switching valve 16 makes negative pressure gas during expectoration
Hold 14 to connect with expiration branch road；Pressure regulator valve 17, in expectoration pattern, for controlling gas circuit vacuum magnitude, such as negative pressure regulation model
Enclose for -10~-150cmH2O, in normal exhalation pattern, for adjusting end-expiratory positive pressure, for example, malleation adjustable range be 0~
80cmH2O；Oscillator 18, for making the air-flow in air flue produce vibration, the loosening of sputum, such as frequency of oscillation is promoted to be
10~30Hz；Flowmeter 19, the gas flow discharged/is exhaled/during expectoration for determining expiration；Baroceptor 20, for monitoring
Pressure in expiration branch road；Pressure sensor 21, for monitoring the pressure size in gas appearance 14；Check valve 22, it is allowed to air-flow from
Gas holds 14 and arrives the one-way flow of turbofan 12.
Wherein, when starting expectoration, turbofan 12, which quickly holds gas in 14, is extracted into certain negative pressure value, and then air pump 13 enters
Gas is held the pressure in 14 and is extracted into lower predetermined negative pressure by one step, and now check valve 22 is closed automatically.Early stage during expectoration,
The high negative pressure that gas holds in 14 establishes the cough air-flow of superhigh speed in expiration branch road, increases with the tidal volume of patient expiration, gas
The pressure held in 14 declines, and the expiratory airflow of patient also begins to decline.The later stage of cough process, the pressure that gas holds in 14 drop to
When below the swabbing pressure of turbofan 12, check valve 22 is opened, and patient's quick exhalation in the presence of turbofan 12 is remaining
Gas.Then the cough incipient stage forms the flow velocity of peak value, and later stage flow velocity has declined, and pressure value also drops to relatively low bear
Pressure.Closer to the air-flow normally coughed from airflow waveform, later stage less negative pressure is also preferably to protect to patient, and
The whole exhalation process of patient can all feel much smoother.Negative pressure pressure limiting valve 15 and sensor 21 can ensure that the negative pressure that gas holds in 14 exists
Below 20Kpa.
In one preferred embodiment of the utility model, when the switching valve 16 is closed, it will not be produced under 20Kpa pressure
Leakage；When the switching valve 16 is opened, under 300L/min flow, the pressure drop of formation is not over 1Kpa.
Wherein, positive/negative-pressure regulating valve 17 includes malleation and negative pressure regulatory function.Malleation in expiration branch road exceedes in malleation
During limit value, positive port is automatically opened up, and positive port is closed automatically when malleation is less than malleation higher limit.When being negative in expiration branch road
During pressure, positive port is closed all the time.When negative pressure in expiration branch road exceedes negative pressure higher limit, negative port automatically opens up, negative pressure
Negative port is closed automatically during less than negative pressure higher limit.When in expiration branch road being malleation, negative port is closed all the time.
Wherein, oscillator 18 could be arranged to vibrate in expiration phase, or be closed.
In a preferred embodiment of the present utility model, lung ventilator is also synchronized with the movement module including respiratory muscle, including breathing
Flesh checking with EMG method submodule and respiratory muscle stimulate submodule.Respiratory muscle checking with EMG method submodule is used for the myoelectricity letter for monitoring respiratory muscle
Number, can be as judging respiratory muscle strength and optimize man-machine synchronous reference signal.Be advantageous to the improvement of ventilation quality, help
The recovery of respiratory muscle, contribute to lift the effect of expectoration again.
Wherein, checking with EMG method includes the detection to diaphram myoelectricity.Diaphram checking with EMG method electrode is located at linea medioclavicularis and the 7th
8th intercostal crosspoint.
The evaluation method of patient's muscular strength is, strong according to the autonomous gettering ability of patient, cough of choking dynamics, diaphram electromyographic signal
Degree, some levels are divided into by the autonomous respiration ability of patient.Lowest level is complete apnea, it is proposed that is led to using control model
Gas；Highest level is can be with entirely autonomous breathing, it is proposed that using autonomous respiration ventilating mode or attempts off line.
Wherein, respiratory muscle, which stimulates, includes diaphragm nerve stimulation and abdominal muscle stimulation.The stimulation sites of diaphragm nerve stimulation are two pleurobranch
Lock at papillary muscle lower edge 1/3rd, or at napex phrenic nerve root；Abdominal muscle stimulating electrode is located at rectus aabdominis and/or musculus trasversus abdomins
Place.
When breathing process starts, control system control respiratory muscle muscle of module when producing air-breathing that is synchronized with the movement moves
Make, such as make contraction of diaphragm；When exhalation process starts, control system control respiratory muscle is synchronized with the movement module when producing expiration
Muscle movement, such as make contraction of abdominal muscle.
The respiratory muscle is synchronized with the movement in module, the mode of diaphragm nerve stimulation, can be electro photoluminescence or magnetic thorn
Swash.
Wherein, in terms of the parameter setting of control system, in addition to the parameter often having comprising existing lung ventilator, in addition to during expectoration
Expectoration negative pressure is set when pressure of inspiration(Pi) setting, expectoration when the setting of air-breathing tidal volume, expectoration, inspiratory airflow vibration is set, expiration gas
Module parameter setting that stream vibration is set, respiratory muscle is synchronized with the movement.Wherein expectoration when air-breathing tidal volume and during expectoration pressure of inspiration(Pi) with
Tidal volume, pressure of inspiration(Pi) during eupnea set mutually independent.
In terms of parameter display, in addition to the ventilator parameter of routine is shown, the waveform of checking with EMG method may also display and to patient
The scoring of respiratory muscle strength.
The lung ventilator of the utility model one embodiment can be run as follows.
During eupnea, inspiratory phase switch valve 6 is opened, and makes air-breathing module by inspiration limb and patient UNICOM, to patient
Implement positive airway pressure, switching valve 16 is closed, and the limitation of the malleation of pressure regulator valve 17 is arranged to the pressure of inspiration(Pi) upper limit.Oscillation module 7 is according to setting
Definite value starts or closed vibration.Control system according to the mode of operation and state modulator source of the gas of setting and valve to patient ventilation,
Such as air-breathing tidal volume and pressure of inspiration(Pi), and pass through flow valve 4 and baroceptor 11 detects the flow and pressure of positive airway pressure.Exhale
Gas phase, switch valve 6 are closed, and the malleation limitation of pressure regulator valve 17 is arranged to end-expiratory positive pressure, and patient passes through expiration branch road and pressure regulator valve
17 positive pressure side is exhaled.In exhalation process, oscillator 18 starts or closed according to setting value.Control system is according to the pattern of setting
With state modulator pressure regulator valve, and pass through flow and pressure that flowmeter 19 and baroceptor 20 detect expiration branch road.
During cough, inspiratory phase switch valve 6 is opened, and switching valve 16 is closed, and the limitation of the malleation of pressure regulator valve 17 is arranged to pressure of inspiration(Pi)
The upper limit, the negative pressure upper limit are arranged to negative pressure value during expectoration；Oscillation module 7, which starts or closed according to setting value, to be vibrated.Control system root
According to the mode of operation and state modulator source of the gas and valve of setting to patient ventilation, suction during such as expectoration when air-breathing tidal volume, expectoration
Atmospheric pressure is set, and the flow and pressure of positive airway pressure are detected by flowmeter 8 and baroceptor 11.Expiratory phase, switch valve 6
Close, the negative pressure limitation of pressure regulator valve 17 is arranged to negative pressure value during expectoration.Switching valve 16 is quickly opened, and makes expiration branch gas circuit sudden and violent suddenly
It is exposed at negative pressure gas to hold under 14 negative pressure, produces the cough air-flow of high speed.During cough, oscillator 18 starts according to setting value
Or close.Control system is examined according to the pattern and state modulator pressure regulator valve of setting by flowmeter 19 and baroceptor 20
The flow and pressure of expiration branch road are surveyed, when detecting the tidal volume that expiration tidal volume sucks close to patient, or expiratory airflow
Closing switching valve 16 during less than a certain threshold value immediately makes patient isolate with negative pressure gas appearance 14.
In summary, the utility model lung ventilator adds negative pressure expectoration function on the basis of existing lung ventilator, can
The normal cough of people is simulated, solves the problems, such as undergoing mechanical ventilation in clinical patient's expectoration difficulties.
The respiratory muscle of the utility model lung ventilator is synchronized with the movement module, can detect the respiratory muscle activity feelings of patient in real time
Condition, with reference to breathing mechanics parameters, the respiration capability of patient is preferably assessed, objective respiration capability evaluation is provided, helps clinical
Determine remedy measures.Meanwhile respiratory muscle stimulating module can synchronous patient respiratory muscle activity and the positive airway pressure of lung ventilator, side
Help patient to keep and reply respiratory muscle strength, while reduce the generation just weighed wounded.
Claims (10)
1. a kind of lung ventilator, it includes：
Control system；
Air-breathing module；
Expiration module,
Characterized in that, the expiration module includes：
Switching valve, it has first interface, second interface, and for switching on or off the switch of first interface and second interface
Part,
Expiration branch road, its first end connection patient end, its second end connect the first interface of switching valve,
Expectoration branch road, its first end connect the second interface of switching valve, and its second end connects the negative port of negative pressure source,
Pressure regulator valve, located at expiration branch road, for maintaining the gas pressure of expiration branch road, gas pressure is included just within a predetermined range
Press P+With negative pressure P-。
2. lung ventilator as claimed in claim 1, it is characterised in that：
Negative pressure source be provided with gas hold, blower fan and air pump, wherein, gas container has accommodation space and first interface in communication, the
Two interfaces and the 3rd interface, blower fan is held by first interface to gas to be evacuated so that accommodation space reaches the first negative pressure P1, and air pump leads to
Cross second interface and pumping is held to gas so that the absolute value that accommodation space reaches the second negative pressure P2, the first negative pressure P1 is negative less than second
P2 absolute value is pressed, the 3rd interface that gas holds forms the negative port of negative pressure source.
3. lung ventilator as claimed in claim 2, it is characterised in that：
Negative pressure source is additionally provided with check valve, safety valve and baroceptor, first interface that check valve holds located at gas and blower fan
Between negative pressure end, optionally held from gas to blower fan and ventilated, safety valve and baroceptor located at the second end of expectoration branch road with
Between the 3rd interface that gas holds.
4. lung ventilator as claimed in claim 1, it is characterised in that：
Pressure regulator valve is provided with positive pressure interface and negative port simultaneously, and positive pressure interface is used to maintain malleation P+Within a predetermined range, negative pressure connects
Mouth is used to maintain negative pressure P-Within a predetermined range.
5. lung ventilator as claimed in claim 4, it is characterised in that：
The positive pressure interface and negative port of pressure regulator valve are two interfaces being set up in parallel；Or
The positive pressure interface and negative port of pressure regulator valve are same interface, and the interface is positive when opening, and are positive pressure interface, the interface
It is negative port when reversely opening.
6. lung ventilator as claimed in claim 1, it is characterised in that：
Also it is synchronized with the movement module including respiratory muscle, it includes being used for the respiratory muscle checking with EMG method submodule for monitoring respiratory muscle electromyographic signal
Block.
7. lung ventilator as claimed in claim 6, it is characterised in that：
Also include respiratory muscle strength evaluation submodule, it is used with reference to letter during evaluation for evaluating respiratory muscle strength
Number include respiratory muscle electromyographic signal.
8. lung ventilator as claimed in claim 7, it is characterised in that：
Also include parameter display module, parameter display module includes checking with EMG method result display sub-module and respiratory muscle strength for patients
Evaluation result display sub-module.
9. lung ventilator as claimed in claim 1, it is characterised in that：
Control system includes parameter setting module, wherein, parameter setting module includes：Air-breathing tidal volume sets submodule during expectoration
When pressure of inspiration(Pi) sets submodule, expectoration when block, expectoration expectoration negative pressure set submodule, inspiratory airflow vibration set submodule,
Expiratory airflow vibrates any one for setting submodule and respiratory muscle to be synchronized with the movement in module parameter setting submodule or appointed several.
10. lung ventilator as claimed in claim 9, it is characterised in that：
When being provided with expectoration, air-breathing tidal volume sets submodule, tidal volume when being additionally provided with eupnea sets submodule
Block, and the two can be independently arranged；And/or
When being provided with expectoration, pressure of inspiration(Pi) sets submodule, pressure of inspiration(Pi) when being additionally provided with eupnea sets submodule
Block, and the two can be independently arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720056370.6U CN206880920U (en) | 2017-01-18 | 2017-01-18 | A kind of lung ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720056370.6U CN206880920U (en) | 2017-01-18 | 2017-01-18 | A kind of lung ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206880920U true CN206880920U (en) | 2018-01-16 |
Family
ID=61327673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720056370.6U Active CN206880920U (en) | 2017-01-18 | 2017-01-18 | A kind of lung ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206880920U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106581833A (en) * | 2017-01-18 | 2017-04-26 | 蔡小奇 | Breathing machine |
| CN111388819A (en) * | 2020-03-27 | 2020-07-10 | 赛客（厦门）医疗器械有限公司 | Vibration sputum excretion control method and respiratory muscle training vibration sputum excretion device |
-
2017
- 2017-01-18 CN CN201720056370.6U patent/CN206880920U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106581833A (en) * | 2017-01-18 | 2017-04-26 | 蔡小奇 | Breathing machine |
| CN106581833B (en) * | 2017-01-18 | 2024-02-06 | 北京雅果科技有限公司 | Breathing machine |
| CN111388819A (en) * | 2020-03-27 | 2020-07-10 | 赛客（厦门）医疗器械有限公司 | Vibration sputum excretion control method and respiratory muscle training vibration sputum excretion device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106581833A (en) | Breathing machine | |
| CN105828859B (en) | Artificial respiration | |
| CN107802993B (en) | Pulmonary rehabilitation training system based on respiratory electromyographic signal feedback | |
| JP6588526B2 (en) | Intelligent bionics exclusion system | |
| CN104822408B (en) | Automatic respiration with auxiliary pressing | |
| CN107614042A (en) | Method and apparatus for being oxygenated and/or removing CO2 | |
| JP2015531628A (en) | Synchronization of mechanical forced inspiration exhalation and diaphragmatic pacing | |
| WO2004026101A3 (en) | Stress test devices and methods | |
| CN105748069A (en) | Carbon dioxide inhalation therapy device for central sleep apnea | |
| EP2812059B1 (en) | Device for increasing cough flow | |
| CN207769100U (en) | A kind of lung rehabilitation training system based on respiration EMG feedback | |
| CN107427653A (en) | mechanical ventilation control based on throat muscle activity | |
| CN104800949B (en) | A kind of apnea awaking device | |
| CN106139338A (en) | Lung ventilator | |
| CN104840351A (en) | Wearable external chest compression respirator synchronous to expiratory phase | |
| CN109731200A (en) | A kind of suction type anaesthetic machine for general anesthesia | |
| CN206880920U (en) | A kind of lung ventilator | |
| CN106975134B (en) | Method and device for adjusting replacement point of respirator and noninvasive respirator | |
| CN106267493B (en) | Medical breathing machine and its method of continuous measuring and calculating resistance of respiratory tract and compliance | |
| CN108310728B (en) | A kind of Respiratory Medicine lung capacity training device and its application method | |
| CN106730065A (en) | A kind of negative pressure generation system and negative pressure production method | |
| CN109172986A (en) | A kind of auxiliary sounding device and bionical vocal technique | |
| WO2024131144A1 (en) | Control method for breathing machine and breathing machine | |
| WO2022217675A1 (en) | Novel ventilator having sputum removing function | |
| CA3175898A1 (en) | Inspiratory resistor valve system with expiratory port |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220826 Address after: 102629 room 317, building 6, yard 26, Yongwang West Road, Daxing biomedical industry base, Zhongguancun Science Park, Daxing District, Beijing Patentee after: YAGUO Inc. Address before: No. 206, Second Street, Zhaozhuang Village, Rengu Town, Tangyin County, Anyang City, Henan Province 456163 Patentee before: Cai Xiaoqi |