CN204798574U - Air bleeding valve is kept apart to motion bobble - Google Patents
Air bleeding valve is kept apart to motion bobble Download PDFInfo
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- CN204798574U CN204798574U CN201520410584.XU CN201520410584U CN204798574U CN 204798574 U CN204798574 U CN 204798574U CN 201520410584 U CN201520410584 U CN 201520410584U CN 204798574 U CN204798574 U CN 204798574U
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Abstract
The utility model discloses an air bleeding valve is kept apart to motion bobble belongs to a supplementary medical instrument who is used for the breathing machine, including the valve body, the valve body includes the exhaust unit and keeps apart the unit, and the exhaust unit is equipped with the exhaust clack seat with keeping apart between the unit, and the lower part that keeps apart the unit still is equipped with the air inlet valve seat, is equipped with inlet channel and exhaust passage respectively on air inlet valve seat and the exhaust clack seat, and inlet channel is linked together with the air inlet of keeping apart the unit, the exhaust hole of exhaust passage and the exhaust unit isotructure that is linked together, control opening and closing of inlet channel and exhaust passage through air bleeding valve bobble and isolating valve bobble for the CO2 of patient's exhalation has promoted expired gas exhaust validity and promptness by exhaust hole discharge, avoids being detained and causes repeated breathing in the inside that keeps apart the unit cavity, still makes the assisted ventilation effect of keeping apart the air bleeding valve also get a promotion. Simultaneously the utility model has the advantages of simple structure, being suitable for the industrial production, can using on all kinds of breathing machines, the range of application is wide.
Description
Technical field
This utility model relates to a kind of medical assistance apparatus for respirator, and in particular, this utility model relates generally to a kind of motion bead separate row air valve.
Background technology
Air bleeding valve in the noninvasive positive pressure ventilation NPPV (NonInvasivePositivePressureVentilation) that current China commonly uses clinically comprises platform valve (PlateauExhalationValve), single hole valve (SingleExhalationPort) and silencing valve (WhisperSwivel) three kinds.
Single hole valve is the hole aerofluxus by fixed size, capacity size is main relevant with the pressure in breathing pipeline, the capacity of single hole valve increases with breathing circuit pressure and increases, when breathing circuit is in high-pressure state (inspiratory phase), capacity is large, and breathing circuit to be in low-pressure state (expiratory phase) capacity little, in breathing circuit, dead is large, is very easy to cause nose (face) to cover interior carbon dioxide rebreathing.
The design original intention of silencing valve solves single hole valve due to single hole aerofluxus, and aerofluxus sound is often comparatively large, may affect the problem that patient has a rest, and the project organization of silencing valve is three slits and the valve of fixed size composition.The similar single hole valve exhaust mode of silencing valve mechanism, unlike increase single hole valve steam vent area thus reduce aerofluxus volume, solve single hole valve due to single hole aerofluxus, aerofluxus sound is often comparatively large, the problem of possible shadow patient rest.But the same with single hole valve, silencing valve is also also have a large amount of gas in inspiratory phase to be spilt by single hole valve, and during expiratory phase, capacity is less, when low expiratory pressure (as < 4cmH
2during O), RB can reach maximum.
The people such as Peng Bo are also proposing about during the research of different air bleeding valves to carbon dioxide rebreathing: platform air bleeding valve, compared with application single hole valve, more efficientlyly can avoid the RB of carbon dioxide.Meanwhile, because the application of single hole air bleeding valve makes V
tand V
minremarkable reduction, patient's subjective sensation comfortableness is poor, advises should avoiding using in practical operation as far as possible.
The a lot of medical worker of industry thinks that platform air bleeding valve using value in existing air bleeding valve is maximum, both effectively can avoid the RB of carbon dioxide, minimum on oxygen concentration impact in face shield again.Meanwhile, platform valve is obviously better than traditional single hole valve and silencing valve because of its exhaust effect in expiratory phase and is used by wide model.
The purpose of design of platform valve is by being incorporated to a transmutability resistance band, and it allows the air bleeding valve aerofluxus more traditional when low expiratory pressure more, reduces RB, and does not increase expiratory resistance again.Therefore capacity and pipeline inner pressure size have nothing to do, relatively constant.Platform valve is when breathing circuit is in low-pressure state (expiratory phase), and capacity is relatively large, and when breathing circuit is in high-pressure state (inspiratory phase), capacity is but relatively little on the contrary.
In breathing circuit, pressure is when varying level fluctuates, and air leakage, the capacity of platform valve remain unchanged substantially, and single hole valve and silencing valve can be omitted tolerance in printing and can increase along with being increased of pressure.About exhaust situation or the leak rate of usage platform valve in breathing pipeline, single hole valve and silencing valve, shown in concrete Fig. 1.
When applying noninvasive positive pressure ventilation at present clinically, conventional breath device (single hole valve/silencing valve/platform air bleeding valve) is to there being CO
2likely there is aerofluxus deficiency and cause RB in the patient of retention respiratory failure, affects CO
2removing.Although discharge expired gas and CO under the result of study display platform air bleeding valve in past can meet the Disease quiescent conditions such as COPD
2demand, but when exercise-based rehabilitation program on patients ventilation increase, likely exceed the capacity of air bleeding valve, the gas of exhalation can not effectively be discharged, and can cause RB and carbon dioxide retention.These two kinds of air bleeding valves are due to the restriction of structure above, if increase expiratory phase capacity, the capacity of inspiratory phase can be caused simultaneously excessive, affect the effect of assisted ventilation.Therefore, be necessary that research and development increase expiratory phase capacity and do not increase the air bleeding valve of inspiratory phase capacity, with the breath emission problem meeting the assisted movement of patient's invasive ventilation or alleviate when moving rear dyspnea.
Utility model content
One of the purpose of this utility model is for above-mentioned deficiency, a kind of motion bead separate row air valve is provided, increase to expect to solve in prior art single hole valve, silencing valve or the platform air bleeding valve ventilation when exercise-based rehabilitation program on patients, likely exceed the capacity of air bleeding valve, the gas of breathing out can not effectively be discharged, and can cause RB and CO
2retention, and the technical problems such as EPAP are pressed in the exhalation different according to different clinical demand scalable.
For solving above-mentioned technical problem, this utility model by the following technical solutions:
A kind of motion bead separate row air valve provided by the utility model, comprise valve body, described valve body comprises exhaust unit and isolated location, exhaust valve seat is provided with between described exhaust unit and isolated location, the bottom of described isolated location is also provided with air inlet valve seat, described air inlet valve seat and exhaust valve seat are respectively equipped with inlet channel and exhaust passage, described inlet channel is connected with the air inlet of isolated location, described exhaust passage is connected with the steam vent of exhaust unit, the inside cavity of described exhaust unit and isolated location is also respectively equipped with air bleeding valve bead and isolating valve bead, described air bleeding valve bead and isolating valve bead match with exhaust passage and inlet channel respectively, for controlling the open and close of inlet channel and exhaust passage, the cavity of described isolated location is also provided with gas outlet, and described gas outlet is connected with breather.
As preferably, further technical scheme is: the top of described exhaust unit is also provided with spring base, described spring base is provided with the first spring, described first spring is conflicted on described air bleeding valve bead, described spring base is also provided with pressure adjusting knob of breathing out, for regulating the conflict power of the first spring action on air bleeding valve bead by exhalation pressure adjusting knob.
Further technical scheme is: described exhaust valve seat is also provided with the second spring, for intercepting isolating valve bead blocking exhaust passage.
Further technical scheme is: described exhaust valve seat and air inlet valve seat are equipped with diaphragm, and described diaphragm is arranged on exhaust passage and inlet channel, for carrying out unidirectional shutoff by diaphragm to exhaust passage and inlet channel.
Further technical scheme is: described exhaust valve seat and air inlet valve seat are sealing ring.
Further technical scheme is: described steam vent is multiple, and is ringwisely placed on exhaust unit, and the distance between described multiple steam vent and exhaust valve seat, is less than the distance between the air bleeding valve bead centre of sphere and exhaust valve seat.
Further technical scheme is: the cavity inner wall close contact of described air bleeding valve bead and exhaust unit, and described isolating valve bead also with the cavity inner wall close contact of isolated location.
Further technical scheme is: described breather is acclivitous to be installed on isolated location, and the inside of described breather is also provided with deflector.
Further technical scheme is: described exhaust unit and isolated location are separate housing, and are connected as one by joint sleeve.
Compared with prior art, one of the beneficial effects of the utility model are: the open and close being controlled inlet channel and exhaust passage by air bleeding valve bead and isolating valve bead, make the CO that patient breathes out
2discharged by steam vent, improve effectiveness and the promptness of breath discharge, the inside being trapped in isolated location cavity is avoided to cause RB, the assisted ventilation effect of separate row air valve is also made also to get a promotion, a kind of motion bead separated exhaust valve arrangement provided by the utility model is simple simultaneously, be suitable for suitability for industrialized production, can use on all kinds of respirator, range of application is wide.
Accompanying drawing explanation
Fig. 1 is exhaust situation or the leak rate diagram of breathing pipeline usage platform valve, single hole valve and silencing valve;
Fig. 2 is the structural representation for illustration of this utility model embodiment;
In figure, 1 be exhaust unit, 11 be steam vent, 2 be isolated location, 21 be air inlet, 22 be gas outlet, 3 be exhaust valve seat, 31 be air inlet valve seat for exhaust passage, 32 is the second spring, 4,41 be inlet channel, 5 be air bleeding valve bead, 6 be isolating valve bead, 7 be breather, 71 be deflector, 8 for spring base, 81 be the first spring, 82 for pressure adjusting knob, 9 of breathing out be diaphragm, 10 be secondary signal hole for joint sleeve, 20 is the first telltale hole, 30,40 for exhalation end finger pin.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is further elaborated.
Shown in figure 2, an embodiment of the present utility model is a kind of motion bead separate row air valve, comprise valve body, valve body comprises exhaust unit 1 and isolated location 2, exhaust valve seat 3 is provided with between exhaust unit 1 and isolated location 2, and air inlet valve seat 4 is also set in the bottom of isolated location 2, air inlet valve seat 4 and exhaust valve seat 3 are respectively equipped with inlet channel 41 and exhaust passage 31, inlet channel 41 is connected with the air inlet 21 of isolated location 2, exhaust passage 31 is connected with the steam vent 11 of exhaust unit 1, exhaust unit 1 is also respectively equipped with air bleeding valve bead 5 and isolating valve bead 6 with the inside cavity of isolated location 2, and air bleeding valve bead 5 and isolating valve bead 6 are matched with exhaust passage 31 and inlet channel 41 respectively, for controlling the open and close of inlet channel 41 and exhaust passage 31, on the cavity of aforesaid isolated location 2, be also provided with gas outlet 22, described gas outlet 22 is connected with breather 7 simultaneously.Just as mentioned previously, described exhaust valve seat 3 preferably adopts rubber seal to form with air inlet valve seat 4; Exhaust unit 1 and isolated location 2 all can adopt separate housing, and are connected as one by joint sleeve 20.
In the present embodiment, control inlet channel 41 and the open and close of exhaust passage 21 by air bleeding valve bead 5 and isolating valve bead 6, make the CO that patient breathes out
2discharged by steam vent 11, improve effectiveness and the promptness of breath discharge, avoid the inside being trapped in isolated location cavity to cause RB, also make the assisted ventilation effect of separate row air valve also get a promotion.
Shown in Fig. 2, in another embodiment of the present utility model, the opening pressure of air bleeding valve is regulated for controlling patient expiration end malleation, inventor also improves on the basis of above-described embodiment, be specially and set up spring base 8 on the top of exhaust unit 1, and on this spring base 8, first spring 81 is installed, the first spring 81 is made to conflict on described air bleeding valve bead 5, and pressure adjusting knob 82 of breathing out need be installed on spring base 8, for regulating the first spring 81 to act on conflict power on air bleeding valve bead 5 by pressure adjusting knob 82 of breathing out, when the elastic force that the first spring 81 is conflicted on air bleeding valve bead 5 is different, even if air bleeding valve bead 5 moves up, required air pressure is not identical yet, and then realize control end expiratory positive pressure being regulated to exhaust valve opening pressure.
Further, above-described embodiment is mentioned and is used spring to adjust the opening pressure of air bleeding valve, and inventor also finds in test, namely can block exhaust passage when the isolating valve bead 6 in isolated location 2 cavity moves up, and then the gas affecting patient's exhalation is discharged; Therefore also on above-mentioned exhaust valve seat 3, second spring 32 being installed, having blocked exhaust passage 31 for intercepting isolating valve bead 6.
On the other hand, for promoting above-mentioned inlet channel 41 and the sealing under the normality of exhaust passage 31, diaphragm 9 can be equipped with on above-mentioned exhaust valve seat 3 with air inlet valve seat 4, and this diaphragm 9 is arranged on exhaust passage 31 and inlet channel 41, for carrying out unidirectional shutoff by diaphragm 9 pairs of exhaust passages 31 and inlet channel 41.
Go out as shown in Figure 2, according to another embodiment of the present utility model, for ensureing that the gas that patient breathes out can be discharged rapidly, and after exhaust passage 31 is opened, steam vent 11 can not intercept by air bleeding valve bead 5, can above-mentioned steam vent 11 be set to multiple, and ringwisely be placed on exhaust unit 1, with the intracavity inter-connection of exhaust unit 1; Distance simultaneously between multiple steam vent 11 and exhaust valve seat 3, should be less than the distance between air bleeding valve bead 5 centre of sphere and exhaust valve seat 3, just can ensure steam vent 11 can not intercept by air bleeding valve bead 5.
Further, air bleeding valve bead 5 generally needs the cavity inner wall close contact with exhaust unit 1, and described isolating valve bead 6 also can with the cavity inner wall close contact of isolated location 2.
In the embodiment that this utility model is more preferably for technical solution problem, for ease of the gas circulation in above-mentioned breather 7, can be acclivitous being installed on isolated location 2, and the inside of described breather 7 be also provided with deflector 71.More preferably, for ease of observation, also can set up the first telltale hole 20 on air inlet valve seat 4, exhaust valve seat 3 is set up secondary signal hole 30; And for ease of observing the end expiratory positive pressure of current setting, also can set up exhalation end finger pin 40 on the exhalation pressure adjusting knob 82 of spring base 8, exhalation end finger pin 40 presses adjusting knob 82 power to be connected with exhalation, when adjusting exhalation pressure adjusting knob 82, numerically corresponding when exhalation end finger pin 40 moves simultaneously.
The operation principle of the above-mentioned preferred embodiment of this utility model is as follows: the air bleeding valve bead 5 in separate row air valve can because the impact of bernoulli effect with isolating valve bead 6, move according to fixed route, block outlet passageway and inlet channel in inspiratory phase and expiratory phase respectively, thus realize the isolation of air-breathing and exhaust gas; Regulate the first spring 81 additionally by exhalation pressure adjusting knob 82, control the opening pressure of end expiratory positive pressure control valve, to ensure the different pressures scope in pipeline, meet the end expiratory positive pressure required for patient, the action relationships of valve body components is:
When the patient inhales, isolating valve bead 6 opens inlet channel 41, air bleeding valve bead 5 closes vent passage 31, and oxygen is entered the inner chamber of isolated location 2 via inlet channel 41 by air inlet 21, then enter breather line by gas outlet 22; As the patient exhales, isolating valve bead 6 closes inlet channel 41, and when pressure of breathing out reaches the setting value in advance by pressure adjusting knob 82 of breathing out, air bleeding valve bead 5 opens exhaust passage 31, and the gas of exhalation is discharged by steam vent via exhaust passage; And then complete a respiratory, in patient's use procedure, abovementioned steps constantly repeats, and the speed of abovementioned steps execution and the respiratory frequency of patient match, even if thus the ventilation of patient respiratory increases, also aforesaid step execution speed only can be made to accelerate, not easily affect the effect of assisted ventilation, avoid causing RB.
And this utility model is while the aerofluxus (gas leakage) reducing inspiratory phase, increase the aerofluxus of expiratory phase, be conducive to increasing CO when noninvasive positive pressure ventilation respirator increases ventilation
2discharge ability.Improvement of the present utility model may be conducive to the noninvasive positive pressure ventilation motion in auxiliary patients with COPD used for respirators or alleviate post exercise dyspnea.
This research proposes the concept by breathing path isolation first as mentioned here above, this separated exhaust valve base is in BernoulliPrinciple (Bernoulli Jacob) principle design, according to hydrodynamics principle, utilize the feature of the single-pipeline air feed of invasive ventilation machine, structure and the exhaust mode of the current air bleeding valve both at home and abroad of reference design.By realizing the isolation of air-breathing and Exhaust Gas, while reducing inspiratory phase gas leakage, increasing the capacity of expiratory phase, improving CO when ventilation increases
2the problem of discharging, being applied to assisted movement for noninvasive ventilator and alleviating to breathe to provide new technical support.
On the basis of the above, inventor also tests practical application effect of the present utility model, specific as follows:
Test lung object of study and method:
Adopt the method for comparative study, in test lung invasive ventilation model, adopt different pressure to arrange, compare the operating characteristic of three kinds of exhaust apparatus.
1, experimental instruments: Powerlab16/35 synchronizing signal polygraph; Bio-signals amplifier; Differential pressure sensor amplifier detects respiratory flow; Noninvasive ventilator (ResMEDH5i+S9); U-shaped water column calibration instrument; Pressure transducer; Test lung.
2, experiment flow and Testing index: use ResMED respirator connection traffic meter, use three kinds of air bleeding valves respectively, under respirator T mode of operation, by the order of respirator → corrugated hose → force samples probe 1 → flow probe 2 → exhaust apparatus (platform valve/single hole valve/separate row air valve) → flow probe 2 → force samples probe 2 → test lung, each equipment connection is good, adjustment ventilator parameter is set to T pattern, records the parameters such as the breathing pattern of each breathing cycle, flow.
Respirator is set to T pattern, sets gradually pressure of inspiration(Pi) and expiratory pressure is as follows:
EPAP is set to 4cmH
2o, IPAP are set to respectively: 8,10,12,14,16,20,24cmH
2o;
EPAP is set to 6cmH
2o, IPAP are set to respectively: 10,12,14,16,20,24cmH
2o;
EPAP is set to 8cmH
2o, IPAP are set to respectively: 12,14,16,20,24cmH
2o;
EPAP is set to 10cmH
2o, IPAP are set to respectively: 14,16,20,24cmH
2o;
The flow of exhaust apparatus and the pressure of breathing machine pipeline are monitored and recorded to application Chart7.2.3 software and Powerlab16 physiograph continuously.The data collected carry out data analysis by Chart7.2.3 software after off-test.
Result of the test
Table 1: the average exhaust amount comparative unit of expiratory phase: ml/s during three valve difference EPAP pressure
Table 2: the average exhaust amount comparative unit of inspiratory phase: ml/s during three valve difference EPAP pressure
Healthy Volunteers object of study and method
One, object: 10 routine healthy volunteers (mean age: 34.40 ± 10.18 years old, FEV1% predicted value: 94.52 ± 15.62, FVC%:91.12 ± 0.56).
Two, research design and method: the design adopting comparative study, assesses the operating characteristic of the separate row air valve of independent research in Healthy Volunteers noninvasive positive pressure ventilation.
1. experimental apparatus, equipment and method of attachment are similar to Part I with experiment flow;
2. subject wears's oral nose mask, adjustment ventilator parameter is set to ST pattern;
3. use single hole valve, platform valve and separated exhaust valve test respectively;
4. air-breathing and breath pressure are arranged according to following scheme:
EPAP is set to 4cmH
2o, IPAP are set to respectively: 8,10,12,14,16,20,24cmH
2o;
EPAP is set to 6cmH
2o, IPAP are set to respectively: 10,12,14,16,20,24cmH
2o;
EPAP is set to 8cmH
2o, IPAP are set to respectively: 12,14,16,20,24cmH
2o;
EPAP is set to 10cmH
2o, IPAP are set to respectively: 14,16,20,24cmH
2o.
Measure the pressure in the pipeline of air bleeding valve and flow.After all physiological signals amplify, through Powerlab16 physiograph by Chart7.2.3 software records and row data analysis.Record the parameters such as the breathing pattern of each breathing cycle, flow.Carry out the assessment of level of comfort simultaneously.
5. adopt lung function instrument to carry out pulmonary ventilation function detection.
Result of the test
Table 3: during three valve difference EPAP pressure, the average exhaust amount of expiratory phase compares (unit: ml/s)
1.*P < 0.05, * * P < 0.01, SEV and PEV compares;
2. Δ P < 0.05, Δ Δ P < 0.01, SEP and PEV compares
COPD patient object of study and method
One, object: 4 routine stable COPD patients (mean age: 67.00 ± 7.46 years old, FEV1% predicted value: 52.25 ± 15.02, FVC%:55.20 ± 7.88).
Two, research design and method: the design adopting comparative study, assesses the operating characteristic of the separate row air valve of independent research in COPD patient noninvasive positive pressure ventilation.
1. experimental apparatus, equipment, method of attachment are similar to Part I with experiment flow.
2. subject wears's oral nose mask, adjustment ventilator parameter is set to ST pattern;
3. difference usage platform valve and separated exhaust valve test;
4. air-breathing and breath pressure are arranged according to following scheme:
EPAP is set to 4cmH
212,16,20cmH O, IPAP are set to respectively:
2o;
EPAP is set to 6cmH
212,16,20cmH O, IPAP are set to respectively:
2o;
Measure the pressure in the pipeline of air bleeding valve and flow.After all physiological signals amplify, through Powerlab16 physiograph by Chart7.2.3 software records and row data analysis.Record the parameters such as the breathing pattern of each breathing cycle, flow.Carry out the assessment of level of comfort simultaneously.
5. adopt lung function instrument to carry out pulmonary ventilation function detection.
Result of the test
Two kinds of air bleeding valves are in different EPAP pressure support ventilation situation, and the contrast of expiratory phase capacity is in table 4:
Table 4: during two kinds of different EPAP pressure, the average exhaust amount of expiratory phase compares (unit: ml/s)
P < 0.05, * * P < 0.01, SEV and PEV compares;
Experimental data illustrates, separate row air valve principle prototype of the present utility model is in expiratory phase, and along with increasing of EPAP, the capacity of separate row air valve, in continuous increase, is greater than the designing and arranging tolerance of platform valve; Simultaneously in inspiratory phase, this maintenance of separated exhaust valve base capacity steady state.
Than that described above, also it should be noted that spoken of in this manual " embodiment ", " another embodiment ", " embodiment " etc., refer to the specific features, structure or the feature that describe in conjunction with this embodiment and be included at least one embodiment of the application's generality description.Multiple place occurs that statement of the same race is not necessarily refer to same embodiment in the description.Furthermore, when describing specific features, structure or a feature in conjunction with any embodiment, what advocate is also drop in scope of the present utility model to realize this feature, structure or feature in conjunction with other embodiments.
Although be described this utility model with reference to multiple explanatory embodiment of the present utility model here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and embodiment, these amendments and embodiment will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of, accompanying drawing open in the application and claim, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the modification of carrying out building block and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.
Claims (9)
1. a motion bead separate row air valve, comprise valve body, it is characterized in that: described valve body comprises exhaust unit (1) and isolated location (2), exhaust valve seat (3) is provided with between described exhaust unit (1) and isolated location (2), the bottom of described isolated location (2) is also provided with air inlet valve seat (4), described air inlet valve seat (4) and exhaust valve seat (3) are respectively equipped with inlet channel (41) and exhaust passage (31), described inlet channel (41) is connected with the air inlet (21) of isolated location (2), described exhaust passage (31) is connected with the steam vent (11) of exhaust unit (1), described exhaust unit (1) is also respectively equipped with air bleeding valve bead (5) and isolating valve bead (6) with the inside cavity of isolated location (2), described air bleeding valve bead (5) and isolating valve bead (6) match with exhaust passage (31) and inlet channel (41) respectively, for controlling the open and close of inlet channel (41) and exhaust passage (31), the cavity of described isolated location (2) is also provided with gas outlet (22), described gas outlet (22) are connected with breather (7).
2. motion bead separate row air valve according to claim 1, it is characterized in that: the top of described exhaust unit (1) is also provided with spring base (8), described spring base (8) is provided with the first spring (81), described first spring (81) is conflicted on described air bleeding valve bead (5), described spring base (8) being also provided with pressure adjusting knob (82) of breathing out, for regulating the first spring (81) to act on conflict power on air bleeding valve bead (5) by pressure adjusting knob (82) of breathing out.
3. motion bead separate row air valve according to claim 1, it is characterized in that: described exhaust valve seat (3) is also provided with the second spring (32), for intercepting isolating valve bead (6) blocking exhaust passage (31).
4. motion bead separate row air valve according to claim 1 and 2, it is characterized in that: described exhaust valve seat (3) and air inlet valve seat (4) are equipped with diaphragm (9), described diaphragm (9) is arranged on exhaust passage (31) and inlet channel (41), for carrying out unidirectional shutoff by diaphragm (9) to exhaust passage (31) and inlet channel (41).
5. the motion bead separate row air valve according to claims 1 to 3 any one, is characterized in that: described exhaust valve seat (3) and air inlet valve seat (4) are sealing ring.
6. motion bead separate row air valve according to claim 1, it is characterized in that: described steam vent (11) is for multiple, and be ringwisely placed on exhaust unit (1), distance between described multiple steam vent (11) and exhaust valve seat (3), is less than the distance between air bleeding valve bead (5) centre of sphere and exhaust valve seat (3).
7. motion bead separate row air valve according to claim 1, it is characterized in that: the cavity inner wall close contact of described air bleeding valve bead (5) and exhaust unit (1), and described isolating valve bead (6) also with the cavity inner wall close contact of isolated location (2).
8. motion bead separate row air valve according to claim 1, it is characterized in that: described breather (7) is acclivitous to be installed on isolated location (2), and the inside of described breather (7) is also provided with deflector (71).
9. motion bead separate row air valve according to claim 1, is characterized in that: described exhaust unit (1) and isolated location (2) are separate housing, and is connected as one by joint sleeve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520410584.XU CN204798574U (en) | 2015-06-09 | 2015-06-09 | Air bleeding valve is kept apart to motion bobble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520410584.XU CN204798574U (en) | 2015-06-09 | 2015-06-09 | Air bleeding valve is kept apart to motion bobble |
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| Publication Number | Publication Date |
|---|---|
| CN204798574U true CN204798574U (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520410584.XU Expired - Fee Related CN204798574U (en) | 2015-06-09 | 2015-06-09 | Air bleeding valve is kept apart to motion bobble |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104906678A (en) * | 2015-06-09 | 2015-09-16 | 广州医科大学附属第一医院 | Ball moving type isolation and exhaust valve |
| EP3723831B1 (en) * | 2017-12-15 | 2024-07-17 | Maquet Critical Care AB | Modular breathing gas separator unit |
-
2015
- 2015-06-09 CN CN201520410584.XU patent/CN204798574U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104906678A (en) * | 2015-06-09 | 2015-09-16 | 广州医科大学附属第一医院 | Ball moving type isolation and exhaust valve |
| EP3723831B1 (en) * | 2017-12-15 | 2024-07-17 | Maquet Critical Care AB | Modular breathing gas separator unit |
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| GR01 | Patent grant | ||
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