CN108096676A - A kind of air bag management type lung ventilator - Google Patents
A kind of air bag management type lung ventilator Download PDFInfo
- Publication number
- CN108096676A CN108096676A CN201810095938.4A CN201810095938A CN108096676A CN 108096676 A CN108096676 A CN 108096676A CN 201810095938 A CN201810095938 A CN 201810095938A CN 108096676 A CN108096676 A CN 108096676A
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- CN
- China
- Prior art keywords
- air bag
- pressure
- gas
- lung ventilator
- concentration lwevel
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Classifications
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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
- A61M16/04—Tracheal tubes
- A61M16/0402—Special features for tracheal tubes not otherwise provided for
-
- 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
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1018—Balloon inflating or inflation-control devices
- A61M25/10184—Means for controlling or monitoring inflation or deflation
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/15—Detection of leaks
-
- 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
- A61M2230/00—Measuring parameters of the user
- A61M2230/40—Respiratory characteristics
- A61M2230/43—Composition of exhalation
- A61M2230/432—Composition of exhalation partial CO2 pressure (P-CO2)
Abstract
The invention discloses a kind of air bag management type lung ventilators, including lung ventilator body and connection lung ventilator body being inserted into the tracheal catheter of air flue, tracheal catheter is equipped with the air bag to obstructing airway, air bag is equipped with surge pipe, lung ventilator body is equipped with the pressure ports being connected with surge pipe, pressure ports are connected with to measure the pressure measuring unit of gasbag pressure, tracheal catheter is additionally provided with after tracheal catheter is inserted into air flue extracting the carbon dioxide collection tube of gas in lacuna between air bag and glottis, lung ventilator body is equipped with the Measurement channel being connected with carbon dioxide collection tube, sense channel is connected with carbon dioxide detection device, pressure measuring unit is connected with can be according to the control unit of the gas concentration lwevel adjustment gasbag pressure measured.Lung ventilator provided by the present invention can monitor the seal between air bag and air flue according to the gas concentration lwevel of gas between air bag and glottis, and control unit is adjusted gasbag pressure according to the seal between air bag and air flue, improves the seal between air bag and air flue.
Description
Technical field
The present invention relates to technical field of medical equipment, and in particular to a kind of air bag management type lung ventilator.
Background technology
Invasive positive airway pressure refers to the ventilating mode that positive pressure mechanical ventilation is carried out by establishing artificial airway, and artificial airway is
The gas passage established by tracheal catheter intranasal or oral insert patient airway.Invasive respirator is then that can carry out invasive positive pressure
A kind of mechanical ventilation device of ventilation, effect are auxiliary or control patient respiratory movement, reach and exchange intrapulmonary gas, reduce
The purpose of human consumption, the respiratory function for being conducive to patient recover.
For most patients, the main purpose for establishing artificial airway is to carry out mechanical ventilation.However, artificial gas
The foundation in road also affects the normal physiological function of body to a certain extent, is particularly inserted into tracheal catheter in the air flue of patient
Afterwards, patient swallows limited, and oral secretion and gastroesophageal reflux object are obstructed by air bag, are stranded in above air bag, form air bag
Upper retentate.If aerocyst of artificial airway bad sealing will cause Subglottic secretion to leak into lower respiratory tract along airbag wall, make
It is inhaled by mistake into patient, triggers Ventilator Associated Pneumonia.If in order to improve gas bag sealing, gasbag pressure setting is excessively high, can make
Air bag significantly oppresses air flue mucous membrane tissue, causes mucous membrane ischemic, necrosis, and airway constriction is then caused even to be perforated, and forms tracheae
Esophageal fistula.Therefore, suitable aerocyst of artificial airway seal is to ensure that effective ventilatory volume and pre- anti-error suction, Ventilator Acquired lung
The key of the high risky complications such as scorching gentle mucous membrane damage is the key points and difficulties of emergency and severe disease medical research.
Traditional aerocyst of artificial airway is that gasbag pressure value is maintained multinomial Ventilator Associated Pneumonia prevention guideline to push away
25~the 30cmH recommended2In the range of O, but gas bag sealing is subject to lung ventilator pattern and parameter, tracheal catheter usage time, tracheae
The factors challenges such as catheter model, vacuum suction, end-expiratory positive pressure, the shape of air bag and material and lasting dynamic change, institute
Dynamic monitoring and it must control with aerocyst of artificial airway seal and could realize the effective closed of air flue.Current lung ventilator can not
Accomplish to carry out fine-grained management to aerocyst of artificial airway seal.
Therefore, how accurately to monitor and synchronization modulation aerocyst of artificial airway seal is that those skilled in the art need to solve
The technical issues of.
The content of the invention
The object of the present invention is to provide a kind of air bag management type lung ventilators, and aerocyst of artificial airway seal can be carried out
Accurate monitoring and synchronization modulation, so that it is guaranteed that aerocyst of artificial airway seal is in optimum state.
To achieve the above object, the present invention provides a kind of air bag management type lung ventilator, including lung ventilator body and connection
For the lung ventilator body to be inserted into the tracheal catheter of air flue, the tracheal catheter is equipped with the air bag to obstructing airway, described
Air bag is equipped with surge pipe, and the lung ventilator body is equipped with to connect the pressure ports of the surge pipe, and the pressure ports connect
There is the pressure measuring unit for measuring the gasbag pressure, the tracheal catheter is additionally provided with to be used after the tracheal catheter is inserted into air flue
To extract the carbon dioxide collection tube of gas between the air bag and glottis, the lung ventilator body is equipped with to connect the dioxy
Change the Measurement channel of carbon collection tube, the sense channel is connected with to detect the carbon dioxide detection device of gas concentration lwevel,
The pressure measuring unit is connected with to increase when the gas concentration lwevel adjustment measured is more than default gas concentration lwevel threshold value
The control unit of the gasbag pressure.
Preferably, the lung ventilator body include to air flue conveying gas conveying source of the gas, the pressure ports with
The conveying source of the gas is connected, and the pressure ports are equipped with pressure reducing valve, control to perform the pressure that pressure regulation operates by described control unit
Force control valve, the safety valve to carry out emergency decompression when loine pressure is excessively high.
Preferably, the carbon dioxide detection device includes：To by the carbon dioxide collection tube gather glottis with
The harvester of gas between the air bag is connected, point to analyze gas sample gas concentration lwevel with the harvester
Analysis apparatus is connected with the analytical equipment, being handled analytical equipment analysis result data and send handling result
To the processing unit of control unit.
Preferably, the sense channel is additionally provided with the gas tube to be inflated between the air bag and glottis, the inflation
Pipe is connected with the pressure ports, and the gas tube is equipped with to control the flow valve of gas flow in the gas tube.
Preferably, the sense channel is equipped with gas drier.
Preferably, described control unit includes：It is connected with the carbon dioxide detection device, the dense carbon dioxide to compared with
Degree and the first judgment means of default carbon dioxide threshold；It is connected with first judgment means, working as dense carbon dioxide
When degree is higher than default gas concentration lwevel threshold value, the gasbag pressure controller of the gasbag pressure is adjusted.
Preferably, described control unit, which is further included, is connected with the pressure measuring unit, to the air bag current pressure
With the second judgment means of default pressure threshold；The gasbag pressure controller is connected with second judgment means；Work as institute
The pressure for stating air bag is more than the default pressure threshold upper limit and gas concentration lwevel is less than under default gas concentration lwevel threshold value
In limited time, the gasbag pressure controller reduces the pressure of the air bag.
Preferably, further include and be connected with first judgment means and second judgment means, working as the air bag
Pressure is more than the default pressure threshold upper limit and gas concentration lwevel is higher than default gas concentration lwevel lower limit or the air bag
Pressure sends alarm when being less than default gas concentration lwevel lower limit less than default pressure threshold lower limit and gas concentration lwevel
Warning device.
Preferably, described control unit further includes to detect the environmental detection set of gas concentration lwevel in environment, institute
Environmental detection set is stated to be carried out before measuring to the carbon dioxide detection device according to gas concentration lwevel in environment
The Zero calibration apparatus in school zero.
The seal of tracheal catheter is controlled by gasbag pressure, and gasbag pressure of the prior art maintain 25~
30cmH2In the range of O, it can not accomplish to dynamically adjust gasbag pressure in time according to the sealing condition of air bag reality.
Have the carbon dioxide of higher concentration, if leaked between air bag and air flue, suffer from the gas of patient's exhalation
The gas of person's exhalation can enter along the gap of leakage between air bag and glottis, make the gas concentration lwevel of gas between air bag and glottis
Rise, the real-time gas concentration lwevel for detecting gas between patient's glottis and air bag can realize the dynamic prison to gas bag sealing
It surveys.
Air bag management type lung ventilator provided by the present invention gathers the gas between air bag and glottis by carbon dioxide collection tube
Body detects the gas concentration lwevel of the gas by carbon dioxide detection device, and control unit is with the dense carbon dioxide of the gas
The foundation as gasbag pressure adjustment is spent, gasbag pressure is adjusted by pressure ports, reaches gasbag pressure dynamic monitoring
With the purpose of adjustment, the accuracy controlling of aerocyst of artificial airway seal is improved.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
The structure diagram for the invasive respirator that Fig. 1 is provided for a kind of specific embodiment of the present invention；
Fig. 2 is the flow chart that aerocyst of artificial airway pressure adjusts in the present invention；
Fig. 3 is the structure diagram of tracheal catheter provided by the present invention；
Fig. 4 is the structure diagram of control unit in Fig. 1.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment belongs to the scope of protection of the invention.
In order to which those skilled in the art is made to more fully understand the present invention program, below in conjunction with the accompanying drawings and it is embodied
The present invention is described in further detail for mode.
It please refers to Fig.1 to Fig. 3, Fig. 1 and shows for the structure for the invasive respirator that a kind of specific embodiment of the present invention is provided
It is intended to；Fig. 2 is the flow chart that aerocyst of artificial airway pressure adjusts in the present invention；Fig. 3 is tracheal catheter provided by the present invention
Structure diagram.
Air bag management type lung ventilator provided by the present invention, including lung ventilator body 1 and tracheal catheter 2, tracheal catheter 2 with
Lung ventilator body 1 is connected, and when patient needs positive airway pressure, tracheal catheter 2 is inserted into the air flue 4 of patient, and tracheal catheter 2 wraps
Air bag 21 and surge pipe 23 are included, when tracheal catheter 2 is inserted into patient airway 4, air bag 21 blocks air flue 4, prevents from being passed through patient
In vivo gas is revealed between air bag 21 and air flue 4；Air bag 21 is connected with surge pipe 23, and surge pipe 23 is used to adjust air bag 21
Pressure；Lung ventilator body 1 is equipped with the pressure ports 125 being connected with surge pipe 23, and pressure ports 125 are connected with measurement 21 pressure of air bag
Pressure measuring unit 124；Tracheal catheter 2, which is additionally provided with after tracheal catheter 2 is inserted into air flue 4, to be used for extracting chamber between air bag 21 and glottis 41
The carbon dioxide collection tube 22 of gas in gap；Lung ventilator body 1 further includes Measurement channel 116,11 and of carbon dioxide detection device
Control unit 126, sense channel 116 are connected with carbon dioxide collection tube 22, carbon dioxide detection device 11 and sense channel 116
It is connected, carbon dioxide detection device 11 can extract air bag 21 and glottis by sense channel 116 and carbon dioxide collection tube 22
Gas in 41 lacunas, and the concentration of the carbon dioxide in gas is measured, control unit 126 is connected with pressure measuring unit 124, and
It can be according to the pressure for the gas concentration lwevel adjustment air bag 21 that carbon dioxide detection device 11 measures.
As shown in Figure of description 1, lung ventilator body 1 is connected with tracheal catheter 2, and tracheal catheter 2 is inserted into patient airway 4
Interior, the air bag 21 of tracheal catheter 2 and the air flue 4 of patient are closed, so that the gas that lung ventilator body 1 is sent out can be via tracheae
Conduit 2 and patient airway 4 are passed through the lung of patient, realize the positive airway pressure to patient.
In the present invention, the tube wall of tracheal catheter 2 is equipped with carbon dioxide and gathers hole, carbon dioxide acquisition hole be located at air bag 21 with
At position of the upper glottis below 41, carbon dioxide acquisition hole is connected with carbon dioxide collection tube 22, and carbon dioxide collection tube 22 is logical
It crosses sense channel 116 with carbon dioxide detection device 11 to be connected, carbon dioxide detection device 11 gathers hole by carbon dioxide and adopts
Collect the gas in lacuna between air bag 21 and glottis 41, the concentration of the carbon dioxide in gas is detected, if titanium dioxide in the gas
Concentration of carbon is higher, illustrates to be revealed between air bag 21 and air flue 4.
The pressure of air bag 21 maintains 25~30cmH in the prior art2In the range of O, but in the range of this, air bag 21 and air flue
Still there is larger leakage possibility between 4.In the present invention, air bag management type lung ventilator is equipped with control unit 126, control unit 126
According to the gas concentration lwevel of gas adjusts air bag in lacuna between air bag 21 and glottis 41 measured by carbon dioxide detection device 11
21 pressure when the gas concentration lwevel of the gas is higher, improves 21 pressure of air bag, air bag 21 are made to be bonded tighter with air flue 4
It is close, so as to prevent to reveal.Obviously, there is also have connection relation with carbon dioxide detection device 11 for control unit 126.Control unit
126 can be with microcontroller or processor, such as control unit 126 can be specially C8051F005 microcontrollers, and C8051F005 is mono-
Two comparators in piece machine disclosure satisfy that the gas concentration lwevel that the present invention relatively measures adjusts and default gas concentration lwevel
The demand of threshold value, the other parts of comparison circuit can refer to the prior art, and details are not described herein.
Pressure measuring unit 124 can be specially pressure sensor, and pressure measuring unit 124 is connected to pressure ports 125 close to air bag 21
One end, so as to reduce interference of other devices to pressure measurements on pressure ports 125.
Lung ventilator body 1 includes mixing arrangement 10 and conveying source of the gas, and mixing arrangement 10 is by air and oxygen according to certain ratio
Example is mixed, and forms mixed gas, conveying source of the gas is connected to after mixing arrangement 10, by mixed gas delivery to patient airway
4, pressure ports 125 are connected with conveying source of the gas, using the mixed gas conveyed in source of the gas to 21 pressurising of air bag, pressure ports 125
Equipped with pressure reducing valve 121, pressure-control valve 122 and safety valve 123.
The process of 1 mechanical ventilation of lung ventilator body is controlled by inlet valve 32 and outlet valve 33, and inlet valve 32 is arranged at conveying
The line end of source of the gas, outlet valve 33 are parallel to one end of tracheal catheter 2 with inlet valve 32, and outlet and the air of outlet valve 33 connect
It is logical.When lung ventilator body 1 is to during ventilation, inlet valve 32 is opened, and outlet valve 33 is closed, and mixed gas is led by conveying source of the gas transtracheal
Pipe 2 is passed through patient's body；As the patient exhales, inlet valve 32 is closed, and outlet valve 33 is opened, and the gas of patient's exhalation is by outlet valve
33 are discharged into air.Wherein, the structure of mixing arrangement 10 and conveying source of the gas can refer to the prior art.
Control unit 126 is by the way that inflatable and deflatable adjustment 21 pressure of air bag of air bag 21, the present invention is to make 21 pressure of air bag
Adjustment process is synchronous with respiratory, by the conveying gas after the mixing arrangement 10 of pressure ports 125 and air bag management type lung ventilator
Source is connected, the source of the gas adjusted using conveying source of the gas as 21 pressure of air bag.
Since the gas pressure after mixing arrangement 10 is higher, the present invention is provided with pressure reducing valve 121 in pressure ports 125, leads to
Crossing pressure reducing valve 121 reduces input pressure control valve 122 again.The pressure of the gas in pressure ports 125 is introduced into, it is made to meet adjustment
The requirement of 21 pressure of air bag prevents air bag 21 from the generation of situations such as overcharging.
Pressure ports 125 are additionally provided with pressure-control valve 122, and pressure-control valve 122 can control pressure ports 125 to air bag
21 pressurisings, the pressure of air bag 21 to air pressure release or maintenance air bag 21 are constant, and pressure-control valve 122 can be specially three-position four-way valve
Or the control valve of other forms.
Once pressure-control valve 122 is revealed or pressure reducing valve 121 fails, excessive gas is filled with gas via pressure ports 125
Among capsule 21,21 hypertonia of air bag can be caused, larger damage is caused to the air flue 4 of patient.To prevent such event from occurring, adjust
Pressure passageway 125 is additionally provided with safety valve 123, when the hypertonia of pressure ports 125,123 take-off of safety valve, to pressure ports
125 carry out pressure release, so as to reduce pressure in pressure ports 125,21 superpressure of air bag are avoided to damage patient, works as pressure ports
When pressure is less than the release pressure value of safety valve 123 in 125, safety valve 123, which resets, stops pressure release.
A kind of preferred embodiment of the present embodiment is pressure reducing valve 121, pressure-control valve 122 and safety valve 123 in pressure regulation
It is set gradually in passage 125 along pressurising airflow direction.
Pressure ports 125, pressure reducing valve 121, pressure-control valve 122, safety valve 123 and pressure measuring unit 124 are common in the present invention
With forming air bag voltage-regulating system 12, control unit 126 being capable of the completions such as control pressure control valve 122, pressure measuring unit 124.
Carbon dioxide detection device 11 includes：Sequentially connected harvester 111, analytical equipment 112 and processing unit
113.Harvester 111 can gather gas between glottis 41 and air bag 21,112 energy of analytical equipment by carbon dioxide collection tube 22
The gas concentration lwevel of gas sample is enough analyzed, processing unit 113 is sent to control unit after handling analysis result
126。
Wherein, harvester 111 can be specially micro air pump, and harvester 111 is drawn by carbon dioxide collection tube 22
Gas in lacuna between air bag 21 and glottis 41, and by sample delivery to analytical equipment 112.
Analytical equipment 112 can be specially carbon dioxide sensor, for example, IR carbon dioxide sensors or semiconductor two
Carbon sensor etc. is aoxidized, harvester 111 is completed by sample delivery to analytical equipment 112 after sampling, and analytical equipment 112 is to sample
It is analyzed, obtains the content of carbon dioxide in sample.
Analysis data are processed into control unit 126 and judge required signal, processing unit 113 and control by processing unit 113
Unit 126 processed is connected, will treated data sending to control unit 126, current signal can be converted to electricity by processing unit 113
Pressure signal or the converter that voltage signal is converted to current signal, specific converter form need defeated by analytical equipment 112
The signal form and the comparison circuit of control unit 126 gone out determines that details are not described herein.
Analysis every time of the invention needs to gather gas in lacuna between air bag 21 and glottis 41, due to air bag 21 and glottis 41
Between space in lacuna be semitight state, acquisition for a long time can reduce the gas in the space, it could even be possible to making gas
Negative pressure is generated by pumping light, and then patient is damaged.To avoid this type of circumstances from happening, sense channel 116 is additionally provided with use
With the gas tube inflated between air bag 21 and glottis 41, gas tube is connected to the pipeline between pressure reducing valve 121 and pressure-control valve 122
On, flow valve 114 is equipped in gas tube, flow valve 114 can control the flow of inflation.
A kind of preferred airing form of the present embodiment gathers the gas of certain volume for harvester 111 every time, completes to adopt
Flow valve 114 opens the gas for being filled with equivalent in lacuna between air bag 21 and glottis 41 after sample, to maintain air bag 21 and glottis 41
Between in lacuna gas volume it is constant.Certainly, flow valve 114 can also be after sampling to lacuna between air bag 21 and glottis 41 several times
Inside it is filled with the gas equal to institute's sample thief summation.
Further, since lacuna memory leaves the secretion of patient between air bag 21 and glottis 41, what harvester 111 was adopted
Liquid may be mixed in sample, the presence of liquid can impact carboloy dioxide analysis result, and therefore, detection of the invention is led to
Road 116 is equipped with gas drier 115, and gas drier 115 can absorb the moisture in gas, makes to examine into carbon dioxide
The gas surveyed in device 11 keeps drying, and drying device 115 can be specially the drier equipped with drier or adsorbent.
In the present embodiment, air bag management type lung ventilator is equipped with carbon dioxide detection device 11 and control unit 126, titanium dioxide
Carbon detection device 11 can gather between air bag 21 and glottis 41 gas in lacuna, analyze gas concentration lwevel therein, and control is single
Member 126 judges the closed situation between air bag 21 and air flue 4 according to analysis result, and instruction, pressure control are sent to pressure-control valve 122
Valve 122 processed adjusts 21 pressure of air bag, so that air bag 21 and air flue 4 are closed, so as to fulfill the dynamic control of 21 pressure of air bag.
Control unit 126 includes 1261 gentle bag pressure force controller 1263 of the first judgment means, as shown in figure 4, first sentences
Disconnected device 1261 is connected with carbon dioxide detection device 11, can compare gas concentration lwevel and default carbon dioxide threshold；
Gasbag pressure controller 1263 is connected with the first judgment means 1261, when gas concentration lwevel is higher than default gas concentration lwevel
During threshold value, gasbag pressure controller 1263 is adjusted the pressure of air bag 21.
Control unit 126 needs to adjust 21 pressure of air bag according to the seal between air bag 21 and glottis 41 in lacuna.First
The effect of judgment means 1261 is to judge the seal of air bag 21, the first judgment means 1261 and 11 phase of carbon dioxide detection device
Even, specific first judgment means 1261 are connected with processing unit 113, and by treated, analysis result passes processing unit 113
The first judgment means 1261 are defeated by, the first judgment means 1261 compare analysis result and default carbon dioxide threshold,
If analysis result is less than default carbon dioxide threshold, illustrate that the seal of air bag 21 is preferable；If analysis result is higher than pre-
If gas concentration lwevel threshold value, illustrate that the seal of air bag 21 is poor, comparative result is transferred to by the first judgment means 1261
Gasbag pressure controller 1263, gasbag pressure controller 1263 adjusts pressure-control valve 122 according to comparative result, so as to fulfill right
The adjustment of 21 pressure of air bag.Obviously, there is also certain connection relation, tools with pressure-control valve 122 for gasbag pressure controller 1263
The connection mode of body is determined by the form of pressure-control valve 122, is not limited herein.
Carbon dioxide threshold includes upper threshold and bottom threshold, when analysis result is less than bottom threshold, illustrates air bag
It is sealed between 21 and air flue 4 preferable；When analysis result, which is more than bottom threshold, is less than upper threshold, illustrate that air bag 21 has occurred slightly
Leakage, at this time gasbag pressure controller control pressure control valve 122 inflated to air bag 21, by 21 pressure of air bag improve
1cmH2O；When analysis result is more than upper threshold, illustrate that air bag 21 reveals more serious, gasbag pressure controller control at this time
Pressure-control valve 122 is inflated according to preset algorithm to air bag 21, and preset algorithm can be geometric algorithm or integral algorithm etc., make gas
21 fast pressurization of capsule is to reduce amount of leakage.Carbon dioxide detection device 11 can detect air bag 21 again after air bag 21 completes boosting
With gas in 41 lacunas of glottis, pressure regulation result is verified, continues to adjust if it there is leakage between air bag 21 and air flue 4
Pressure, until being realized between air bag 21 and air flue 4 good closed.
In the present embodiment, carbon dioxide threshold includes upper threshold and bottom threshold is a kind of preferred embodiment,
Purpose is when air bag 21 reveals slighter, slow pressurising, emphasis be pressure regulation security；When air bag 21 reveal it is more serious
When, fast pressurization, emphasis be pressure regulation high efficiency.In other embodiment, it may be selected to make in the threshold value of carbon dioxide threshold
Limit is equal with bottom threshold, and pressurising is carried out when analysis result is more than carbon dioxide threshold；Obviously, user can also be as needed
Multiple carbon dioxide thresholds are set, and different pressurising speed is set according to carbon dioxide threshold.
Control unit further includes the second judgment means 1262, and the second judgment means 1262 are connected with pressure measuring unit 124, and second
Judgment means 1262 compare 21 current pressure of air bag and default pressure threshold；Gasbag pressure controller 1263 and second judges dress
1262 are put to be connected；When the pressure of air bag 21 is less than default dioxy more than the default pressure threshold upper limit and gas concentration lwevel
When changing carbon concentration threshold lower limit, gasbag pressure controller 1263 reduces the pressure of air bag 21.
21 pressure of air bag has highly important influence to the health of patient, can be to patient if 21 hypertonia of air bag
Air flue 4 cause to oppress, injured patient's air flue 4.Gasbag pressure controller is connected with pressure measuring unit 124 in the present embodiment, to gas
21 pressure of capsule is monitored, if gas concentration lwevel illustrates that air bag 21 is closed preferably less than bottom threshold, at this time if air bag
21 pressure are higher than the pressure threshold upper limit, then illustrate 21 hypertonia of air bag, and gasbag pressure controller 1263 is by 21 pressure drop of air bag
Low 1cmH2O can reduce compressing of the air bag 21 to patient airway 4, can resampling detection air bag after the adjustment of 21 pressure of air bag
21 seals.
In the present embodiment, pressure ports 125 are additionally provided with pressure release branch, and pressure release branch is connected to safety valve 123 and is filled with pressure measurement
It puts on the pipeline between 124, pressure release branch road is equipped with electromagnetic pressure control valve, and electromagnetic pressure control valve is logical with pressure measuring unit 124
Oversampling circuit connects, and when needing pressure release, electromagnetic pressure control valve is opened, and the pressure of air bag 21 reduces 1cmH2After O, electromagnetic pressure
Control valve, which is closed, completes air bag pressure release.
Present invention additionally comprises the warning devices being connected with the first judgment means 1261 and the second judgment means 1262, work as air bag
21 pressure is more than the default pressure threshold upper limit and gas concentration lwevel is higher than default gas concentration lwevel lower limit or gas
When bag pressure power is less than default gas concentration lwevel lower limit less than default pressure threshold lower limit and gas concentration lwevel, alarm
Device sends alarm.
Achievement in research of 21 pressure threshold of air bag in document in the present invention is set, and is clinically still not excluded for reality
Border is suitble to possibility of 21 pressure of air bag of patient outside default pressure threshold scope.When such happen, doctor
It needs to be judged according to the situation of patient, change 21 pressure threshold scope of air bag, in the present embodiment, air bag management type lung ventilator
There is provided warning devices, and the default pressure threshold of doctor is reminded to be not suitable for current patents.
For first judgment means 1261 after the judgement of seal is completed, the second judgment means 1262 fit 21 pressure of air bag
Suitable property is judged, to determine that 21 pressure of air bag whether there is too high or too low situation.Specifically, the second judgment means 1262
21 current pressure of air bag that pressure measuring unit 124 measures is received, by 21 current pressure of air bag compared with 21 pressure threshold of air bag.
As shown in Fig. 2, if it find that air bag 21 is revealed, then to the progress pressurising of air bag 21, the second judgment means 1262 compare gas after pressurising
21 current pressure of capsule and the pressure threshold upper limit, if 21 current pressure of air bag is more than the pressure threshold upper limit, illustrate that patient is suitable
21 pressure value of air bag higher than pressure threshold scope, at this point, warning device sends alarm, 21 pressure threshold mistake of prompting doctor air bag
Low, doctor is adjusted according to actual state.
In addition, situation described above is more than the pressure threshold upper limit for 21 pressure of air bag, still seal is poor, it is necessary to cure
It is raw to improve pressure threshold scope as the case may be.There certainly exist such a case, 21 seal of air bag is preferable, and air bag
21 current pressure are less than pressure threshold lower limit, and it is excessively high that this illustrates that pressure threshold may be set, at this point, warning device sends report
Alert, prompting doctor's 21 pressure thresholds of air bag are excessively high, and doctor is adjusted according to actual state.Warning device in the present embodiment can
Think alarm lamp, buzzer or the signal projector for sending warning message to mobile equipment.
Air bag management type lung ventilator provided by the present invention further includes environmental detection set, and environmental detection set can detect
Gas concentration lwevel in environment, equipped with Zero calibration apparatus, Zero calibration apparatus is connected with environmental detection set, can be according to dioxy in environment
Change concentration of carbon to carrying out school zero before the detection of carbon dioxide detection device 11.
Since the gas in environment has a certain concentration carbon dioxide in itself, these carbon dioxide can detect carbon dioxide
The testing result of device 11 impacts, and environmental detection set is provided in the present embodiment, and environment monitoring device can be specially electricity
Magnetic two position three-way valve, electromagnetism two position three-way valve are located at before detection device 11, when needing to detect gas concentration lwevel in environment,
The sense channel 116 being connected with analytical equipment is connected air by electromagnetism two position three-way valve, is analyzed by analytical equipment 112 in air
Gas concentration lwevel.Zero calibration apparatus is equipped in carbon dioxide detection device 11, Zero calibration apparatus can be to the titanium dioxide in environment
Concentration of carbon carries out school Z-operation, is influenced with excluding environment caused by detection device testing result.Zero calibration apparatus can refer to existing
Technology, details are not described herein.
In the present embodiment, the first judgment means 1261, the second judgment means 1262 and air bag are provided in control unit 126
Pressure controller 1263, the first judgment means 1261 and the second judgment means 1262 can be gentle to the seal of air bag 21 respectively
The suitability of 21 pressure threshold of capsule is judged that gasbag pressure controller 1263 can adjust the pressure of air bag 21 according to judging result
Power not only can guarantee closed between air bag 21 and air flue 4, but also can guarantee that air bag 21 does not oppress the purpose of air flue 4 so as to reach.
Connection of the claimed main body of the present invention between the building block of air bag management type lung ventilator and each component
Relation, all parts of lung ventilator are not limited only to the equipment being previously mentioned in specification citing.
It should be noted that in the present specification, such as first and second etc relational terms are used merely to one
Entity is distinguished with other several entities, and without necessarily requiring or implying between these entities, there are any this actual
Relation or order.
Air bag management type lung ventilator provided by the present invention is described in detail above.It is used herein specifically a
Example is set forth the principle of the present invention and embodiment, and the explanation of above example is only intended to help to understand the present invention's
Method and its core concept.It should be pointed out that for those skilled in the art, the principle of the invention is not being departed from
On the premise of, can also to the present invention some improvement and modification can also be carried out, these improvement and modification also fall into the claims in the present invention
Protection domain in.
Claims (9)
1. a kind of air bag management type lung ventilator, including lung ventilator body (1) and the connection lung ventilator body (1) being inserted into gas
The tracheal catheter (2) in road (4), the tracheal catheter (2) are equipped with the air bag (21) to obstructing airway (4), the air bag (21)
Equipped with surge pipe (23), the lung ventilator body (1) is equipped with to connect the pressure ports (125) of the surge pipe (23), institute
It states pressure ports (125) to be connected with to measure the pressure measuring unit (124) of the air bag (21) pressure, which is characterized in that the gas
Pipe conduit (2) is additionally provided with after the tracheal catheter (2) is inserted into air flue (4) extracting between the air bag (21) and glottis (41)
The carbon dioxide collection tube (22) of gas, the lung ventilator body (1) are equipped with to connect the carbon dioxide collection tube (22)
Measurement channel (116), the sense channel (116) is connected with to detect the carbon dioxide detection device of gas concentration lwevel
(11), the pressure measuring unit (124) is connected with to when the gas concentration lwevel adjustment measured is more than default gas concentration lwevel
Increase the control unit (126) of the air bag (21) pressure during threshold value.
2. air bag management type lung ventilator according to claim 1, which is characterized in that the lung ventilator body (1) includes using
With to the conveying source of the gas of air flue (4) conveying gas, the pressure ports (125) are connected with the conveying source of the gas, and the pressure regulation is led to
Road (125) is equipped with pressure reducing valve (121), is controlled to perform the pressure-control valve that pressure regulation operates by described control unit (126)
(122), carrying out the safety valve (123) of emergency decompression when loine pressure is excessively high.
3. air bag management type lung ventilator according to claim 1, which is characterized in that the carbon dioxide detection device (11)
Including：
To gather the harvester of gas between glottis (41) and the air bag (21) by the carbon dioxide collection tube (22)
(111)；
It is connected with the harvester (111), analyzing the analytical equipment of gas sample gas concentration lwevel (112)；
It is connected with the analytical equipment (112), being handled analytical equipment analysis result data and will be after handling result
It is sent to the processing unit (113) of control unit (126).
4. air bag management type lung ventilator according to claim 3, which is characterized in that the sense channel (116) is additionally provided with
To the gas tube inflated between the air bag (21) and glottis (41), the gas tube is connected with the sense channel (114),
The gas tube is equipped with to control the flow valve (114) of gas flow in the gas tube.
5. air bag management type lung ventilator according to claim 4, which is characterized in that the sense channel (116) is equipped with gas
Body drying device (115).
6. air bag management type lung ventilator according to any one of claims 1 to 5, which is characterized in that described control unit
(126) include：
It is connected with the carbon dioxide detection device (11), gas concentration lwevel and default carbon dioxide threshold to compared with
First judgment means (1261)；
Be connected with first judgment means, to when gas concentration lwevel be higher than default gas concentration lwevel threshold value when, adjust
The gasbag pressure controller (1263) of the whole air bag (21) pressure.
7. air bag management type lung ventilator according to claim 6, which is characterized in that described control unit (126) further includes
It is connected with the pressure measuring unit (124), sentences to the air bag (21) current pressure and the second of default pressure threshold
Disconnected device (1262)；
The gasbag pressure controller (1263) is connected with second judgment means (1262)；When the pressure of the air bag (21)
When being less than default gas concentration lwevel bottom threshold more than the default pressure threshold upper limit and gas concentration lwevel, the air bag
Pressure controller can reduce the pressure of the air bag (21).
8. air bag management type lung ventilator according to claim 7, which is characterized in that further include and first judgment means
(1261) it is connected with second judgment means (1262), is more than on default pressure threshold to work as the air bag (21) pressure
Limit and gas concentration lwevel are higher than default gas concentration lwevel lower limit or the air bag (21) pressure is less than default pressure threshold
Value lower limit and gas concentration lwevel send the warning device of alarm when being less than default gas concentration lwevel lower limit.
9. air bag management type lung ventilator according to claim 8, which is characterized in that further include to detect dioxy in environment
Change concentration of carbon environmental detection set, the environmental detection set be connected with to according to gas concentration lwevel in environment in measurement
The preceding Zero calibration apparatus that school zero is carried out to the carbon dioxide detection device (11).
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| CN201810095938.4A CN108096676B (en) | 2018-01-31 | 2018-01-31 | Gasbag management formula breathing machine |
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| CN201810095938.4A CN108096676B (en) | 2018-01-31 | 2018-01-31 | Gasbag management formula breathing machine |
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| CN108096676B CN108096676B (en) | 2023-09-29 |
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| CN112755353A (en) * | 2021-01-20 | 2021-05-07 | 卫圣康医学科技(江苏)有限公司 | Airway management method and airway management system during tracheal intubation ventilation and breathing machine |
| CN113018620A (en) * | 2019-12-24 | 2021-06-25 | 皖南医学院第一附属医院（皖南医学院弋矶山医院） | Artificial airway air bag pressure measuring device with constant pressure function and using method thereof |
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