CN105194781B - Ventilation control device and breathing mask equipment with the ventilation control device - Google Patents
Ventilation control device and breathing mask equipment with the ventilation control device Download PDFInfo
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- CN105194781B CN105194781B CN201510696678.2A CN201510696678A CN105194781B CN 105194781 B CN105194781 B CN 105194781B CN 201510696678 A CN201510696678 A CN 201510696678A CN 105194781 B CN105194781 B CN 105194781B
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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
- A61M16/06—Respiratory or anaesthetic masks
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Abstract
A kind of ventilation control device and the breathing mask equipment with the ventilation control device.The ventilation control device includes：Cavity has one or more blowing mouths and the mask vent for being connected to breathing mask；Valve module at least one blowing mouth is set；Valve module cooperatively forms air inlet and exhaust outlet with blowing mouth；Valve module makes air inlet be connected with mask vent when being configured to pressure in the cavity less than or equal to atmospheric pressure, and pressure in the cavity makes exhaust outlet be connected with mask vent when being more than atmospheric pressure；Wherein the cross-sectional area of air inlet is more than the cross-sectional area of exhaust outlet, and the pressure that exhaust outlet can be when exhaling in holding chamber body is more than atmospheric pressure.The ventilation control device realizes the positive-pressure function of expiratory phase, avoids patient caused by continuous positive pressure uncomfortable；Without connecting barotropic gas feedway and pipeline etc. when use, to facilitate patient to move；Without carrying barotropic gas feedway when outgoing.
Description
Technical field
The present invention relates to breathing mask technical field, more particularly to a kind of ventilation control device for breathing mask with
And the breathing mask equipment with this ventilation control device.
Background technology
The method for the treatment of obstructive sleep apnea low-ventilatory syndrome (OSAHS) mainly has surgical operation, mouth at present
Chamber rectifier and continuous positive pressure ventilation (CPAP).
The most common mode of surgical operation is Uvulopalatopharyngoplasty and its improvement operation, is hindered for epithelium healing pars oralis pharyngis
Plug (including pharyngeal mucosa tissue is plump, pharyngeal cavity is narrow, uvula is loose, soft palate is too low, the hypertrophy of tonsils) and apnea
Low ventilation index (AHI)<20 times/hour.For this method due to that need to have an operation, patient acceptance is low, and surgical tissue is grown again
Relapse rate can be caused, and can not be performed the operation again later.
Oral cavity orthopetical device is usually used in simple snore disease and slight OSAHS patient (AHI<15 times/hour), especially mandibular retrusion
Person, curative effect can not be, it is expected that can only try out.
Continuous positive pressure ventilation technology be breathing mask 110 is connected to CPAP lung ventilators 130 by connecting line 120, and
The breathing mask 110 is worn to the face of patient.CPAP lung ventilators 130 generate lasting positive pressure gas flow, to patient's
Epithelium healing provides physiological stress support, and then treats OSAHS.The shortcomings that continuous positive pressure ventilation, is：Continuous positive pressure can cause
Patient is uncomfortable, and some patientss cannot receive；For connecting line with lung ventilator limitation patient at night activity, compliance is low；CPAP is breathed
Machine is inconvenient to carry and cost is higher.Breathing mask is treated in the case of several different for disordered breathing, such as obstructive
The treatment etc. of sleep apnea syndrome；Or it is used to provide stable inhalable air-flow in other cases.
Therefore, it is necessary to a kind of ventilation control device for breathing mask and the respiratory surfaces with the ventilation control device
Shield apparatus, to solve problems as mentioned above at least partly.
Invention content
In order to solve problems of the prior art at least partly, the present invention provides a kind of for the logical of breathing mask
Gas control device and breathing mask with the ventilation control device.
The ventilation control device provided according to an aspect of the present invention includes：Cavity, with mask vent and
One or more blowing mouths, the mask vent with breathing mask for being connected to；Valve module is arranged at least one described
At blowing mouth；The valve module cooperatively forms air inlet and exhaust outlet with the blowing mouth；The valve module is configured to described
Pressure in cavity makes the air inlet be connected to the mask vent when being less than or equal to atmospheric pressure, in the cavity
Pressure makes the exhaust outlet be connected to the mask vent when being more than atmospheric pressure；Wherein, the cross-sectional area of the air inlet is big
In the cross-sectional area of the exhaust outlet, and the exhaust outlet can keep the pressure in the cavity to be more than air when exhaling
Pressure.
Preferably, the blowing mouth includes spaced first blowing mouth and the second blowing mouth, the valve module setting
At first blowing mouth；Pressure in the cavity opens first blowing mouth when being less than or equal to atmospheric pressure, described
First blowing mouth and second blowing mouth are the air inlet；Pressure in the cavity closes described the when being more than atmospheric pressure
One blowing mouth, second blowing mouth are the exhaust outlet.
Preferably, it is provided with regulating mechanism at second blowing mouth, the ventilation face for adjusting second blowing mouth
Product.
Preferably, the regulating mechanism includes：Fixing piece is connected to the cavity；Displaceable member movably connects
It is connected to the fixing piece；Location structure is used to position the position of the displaceable member relative to the fixing piece；And it adjusts
Part, the head configuration of the regulating part are that can be contained in second blowing mouth and along the gas of second blowing mouth
There is circulating direction different cross-sectional areas, the regulating part to be connected to the displaceable member, and the displaceable member can drive
The regulating part is moved along the gas circulating direction of second blowing mouth.
Preferably, the regulating mechanism includes elastic component, and the elastic component is connected at second blowing mouth and covering
Second blowing mouth, on the elastic component setting make the through-hole of second blowing mouth and atmosphere, the through-hole it is logical
Gas area increases with the increase of the cavity internal pressure.
Preferably, the regulating mechanism further includes the elastic valve nozzle being connected with second blowing mouth, the feather valve
Mouth is tapered along the outgassing direction of the blowing mouth.
Preferably, it is opened when the valve module is configured to pressure in the cavity less than or equal to atmospheric pressure described defeated
Gas port, the blowing mouth are the air inlet；Described in the pressure of the valve module in the cavity is closed when being more than atmospheric pressure
The rest part of a part for blowing mouth, the blowing mouth is exhaust outlet.
Preferably, the valve module includes the one or more valves to circulate for controlling the gas of the blowing mouth, institute
It is the check valve opened when the pressure in the cavity is less than or equal to atmospheric pressure to state valve, and the valve module is described with making
The vent openings of cavity and atmosphere, the vent openings include the through-hole being arranged on the valve, and/or by multiple valves
The overlapping region of the opening that door cooperatively forms, the vent openings and the blowing mouth is the exhaust outlet.
Preferably, the valve is made of elastic material, so that the breathing area of the vent openings is in the cavity
The increase of pressure and increase.
Preferably, it is provided with regulating mechanism at the vent openings, the breathing area for adjusting the vent openings.
Preferably, the regulating mechanism includes the feather valve for being arranged on the valve and being connected to the vent openings
Mouth, the elasticity valve nozzle are tapered along the outgassing direction of the vent openings.
Preferably, the regulating mechanism includes：Fixing piece is connected to the valve module；Displaceable member, movably
It is connected to the fixing piece；Location structure is used to position the position of the displaceable member relative to the fixing piece；And it adjusts
Part is saved, the head of the regulating part is configured to be contained in the vent openings and along the gas stream of the vent openings
There is different cross-sectional areas, the regulating part to be connected to the displaceable member in logical direction, and the displaceable member can drive institute
Regulating part is stated to move along the gas circulating direction of the vent openings.
Preferably, the valve module is set on the blowing mouth to cover the blowing mouth, is arranged on the valve module
There is the through-hole being connected with the blowing mouth；When the valve module is configured to pressure in the cavity less than the atmospheric pressure
To the inner hump of the cavity so that the through-hole becomes larger, and pressure in the cavity be more than the atmospheric pressure when limit
Outer bumps of the valve module to the cavity.
Preferably, the valve module includes：Elastic valve plate, the elastic valve plate are set on the blowing mouth to cover
Blowing mouth is stated, when the pressure in the cavity is less than the atmospheric pressure, the elastic valve plate is swelled into the cavity, makes institute
It states through-hole to become larger, stop part, the stop part is arranged in the side far from the cavity of the elastic valve plate, for described
When pressure in cavity is more than the atmospheric pressure, elastic valve plate is swelled to outside the cavity described in backstop.
The breathing mask equipment provided according to another aspect of the present invention includes：Breathing mask；And it is as described above
A kind of ventilation control device of people, the ventilation control device are connected to the breathing mask, and by the mask vent with
The breathing mask ventilation.
Preferably, the breathing mask includes mask body and the spacer assembly that is connected on the mask body, described
For the facial contact with patient, the mask body and the spacer assembly are collectively formed for the mouth with patient spacer assembly
And/or the cavity of nose connection, wherein the cavity of the ventilation control device is a part for the cavity, the ventilation
The valve module of control device is arranged on the mask body.
When patient expiration, the pressure in breathing mask can superatmospheric.The characteristics of present invention is changed using expiration air pressure,
A kind of ventilation control device for the air inlet and exhaust outlet being respectively provided with varying cross-section product in air-breathing and expiration is provided, and
And exhaust outlet has relatively small cross-sectional area, and then the positive-pressure function of expiratory phase is realized, it avoids continuing (to exhale and inhale
Gas) patient caused by positive pressure is uncomfortable；The ventilation control device provides exhaled positive pressure using the mechanical structure of itself, therefore uses
Shi Wuxu connection barotropic gas feedway (such as CPAP lung ventilators) and pipeline etc., to facilitate patient to move；When outgoing without
Barotropic gas feedway need to be carried, patient can wear the breathing mask with the ventilation control device and treat at any time.
In addition, the ventilation control device compact, is convenient for carrying, cost is relatively low.
A series of concept of reduced forms is introduced in invention content, this will in the detailed description section further
It is described in detail.This part of the disclosure be not meant to attempt to limit technical solution claimed key feature and
Essential features do not mean that the protection domain for attempting to determine technical solution claimed more.
Below in conjunction with attached drawing, the advantages of the present invention will be described in detail and feature.
Description of the drawings
The following drawings of the present invention is used to understand the present invention in this as the part of the present invention.Shown in the drawings of this hair
Bright embodiment and its description, principle used to explain the present invention.In the accompanying drawings,
Fig. 1 is the schematic diagram of existing continuous positive pressure ventilation system；
Fig. 2A is the stereogram of the breathing mask with ventilation control device according to an embodiment of the invention；
Fig. 2 B are the full sectional view of the ventilation control device and breathing mask in Fig. 2A；
Fig. 3 is the sectional view of the breathing mask with ventilation control device according to a first embodiment of the present invention；
Fig. 4 is the sectional view of the breathing mask with ventilation control device according to a second embodiment of the present invention；
Fig. 5 is the sectional view of the breathing mask with ventilation control device according to a third embodiment of the present invention；
Fig. 6 is the sectional view of the breathing mask with ventilation control device according to a fourth embodiment of the present invention；
Fig. 7 A are the sectional view of the breathing mask with ventilation control device according to a fifth embodiment of the present invention；
Fig. 7 B are the stereogram of the ventilation control device and breathing mask in Fig. 7 A；
Fig. 8 is the sectional view of the breathing mask with ventilation control device according to a sixth embodiment of the present invention；
Fig. 9 is the sectional view of the breathing mask with ventilation control device according to a seventh embodiment of the present invention；And
Figure 10 is the sectional view of the breathing mask with ventilation control device according to a eighth embodiment of the present invention.
110, breathing mask；120, connecting line；130, CPAP lung ventilators；20, breathing mask；21, mask body；22,
Spacer assembly；23, support section；24, forehead support；200, ventilation control device；210, cavity；211, mask vent；
212A, the first blowing mouth；212B, the second blowing mouth；213, connection structure；220, valve module；300, regulating mechanism；310, fixed
Part；320, displaceable member；330, location structure；340, regulating part；311, gas outlet；341, head；400, regulating mechanism；410,
Elastic component；420, through-hole；500, elastic valve nozzle；610, cavity；611, mask vent；612, blowing mouth；621, valve；622,
Connector；623, through-hole；710, cavity；711, mask vent；712, blowing mouth；721, valve；722, connector；723, it opens
Mouthful；800, elastic valve nozzle；910, cavity；912, blowing mouth；921, valve；922, through-hole；923, biasing member；930, machine is adjusted
Structure；931, fixing piece；932, displaceable member；933, location structure；934, regulating part；935, head；940, blow vent；1010,
Cavity；1011, mask vent；1012, blowing mouth；1020, valve module；1021, elastic valve plate；1022, through-hole；1023, only
Block piece；1024, stomata.
Specific implementation mode
In the following description, a large amount of details is provided so as to thoroughly understand the present invention.However, this field skill
Art personnel will be seen that, exemplarily only show that the preferred embodiment of the present invention, the present invention may not need one described below
Or multiple such details and be carried out.In addition, in order to avoid obscuring with the present invention, for more well known in the art
Technical characteristic is not described in detail.
According to an aspect of the present invention, a kind of ventilation control device for breathing mask is provided (hereinafter referred to as to ventilate
Control device).In order to it is accurate, be fully understood by the ventilation control device, herein will be first to using ventilation control dress
The breathing mask set is briefly described.It is understood that attached oronasal mask type breathing mask shown in the drawings is merely illustrative
Property, ventilation control device provided herein is not limited to be applied only to the oronasal mask type breathing mask, is also applicable to
The breathing mask of the forms such as nose cup type, full face cover type or nose plug type.
As shown in the stereogram of Fig. 2A and the sectional view of Fig. 2 B, breathing mask 20 includes mask body 21, spacer assembly 22
With forehead support 24.In other embodiments not shown, breathing mask 20 may not include one of those or two
Component, such as do not include forehead support 24.
Mask through-hole (not indicating) is provided on mask body 21.Spacer assembly 22 is mounted on mask body 21.Face
Cavity is collectively formed in cover main body 21 and spacer assembly 22.Spacer assembly 22 can be permanently connected or be detachably connected to mask
Main body 21.When in use, mask body 21 and spacer assembly 22 by with the face of patient (including cheek, the bridge of the nose, face top and the bottom
Deng) contact, sealing is formed, so that the cavity is connected to the nasal cavity of patient or mouth and nose chamber.Mask body 21 can be by rigid material
Material is made, or can also be fabricated from a flexible material.Spacer assembly 22 is preferably fabricated from a flexible material.Spacer assembly 22 can be with
It is air bag, can also be membrane structure.Membrane structure can be single layer or the bilayer of separation.Spacer assembly 22 may also comprise adhesive
(such as adhesive sticker etc.), to promote patients' feeling and sealing effect.The shape of mask body 21 and spacer assembly 22 seen from front
Shape is not limited to general triangular shown in figure, can also be pyriform, trapezoidal etc..Mask body 21 and spacer assembly 22 may be used also
With using shape compatible with snout shape etc..In nose plug type breathing mask, spacer assembly 22 can also be designed to
With the nasal obstruction of the cone-shaped membrane shape of nose orifice sealing, the double membrane structure that this structure equally can be with single layer or separation.In mouth and nose
In type breathing mask, nasal obstruction can also be combined with the design of oral area cover type.Spacer assembly 22 includes support section 23.Support portion
23 are divided to may be designed to the structures such as gauffer, bellows, local reduction, bending, arc, to realize that this breathing mask 20 and face are more preferable
Fitting, or even realize and suspend between the cushioned portions and mask body 21 of spacer assembly 22, so as to adaptively pad and face
Fitting angle, and utilize intracavity gas pressure assisted seal.As an example, support section 23 uses air bag or gel,
There can be adaptive shape of face.
In addition, the breathing mask 20 also includes the fixing piece, such as buckle, bandage ring etc. for being connected and fixed component.Gu
Determining part can be connected to as independent part on mask body 21, also can be integrally formed with mask body 21.Fixation kit is used for
Breathing mask 20 is fixed on the appropriate location of patient facial region, can be existing various headbands.Can have on headband and mask
The structure that main body 21 connects, such as button, the bandage with velcro.Braided fabric, elastomer etc. may be used (wherein in the material of headband
Elastomer can be foam, silica gel etc.), can also use braided fabric and elastomer composite multilayered structure, with improve its elasticity,
Gas permeability and human body compliance.The shape of headband can make the various forms such as Y-shaped, I-shaped, while certain directions can be added
Relative stiffness and in addition certain direction parts flexible, more preferably to fix the breathing mask 20.Fixation kit can also be direct
The structure being fixed in face, nose outside or nasal cavity, for example can be the fixed structure of adhesive (such as adhesive sticker etc.).
Forehead support 24 is resisted against on the forehead of patient when in use.Between forehead support 24 and mask body 21
Connection can be fixed or disassembled, and the embodiment of sectional type is, for example, to pass through button bit.Forehead support 24 includes
Soft forehead contact site.The forehead support 24 can also have adjusting apparatus, with adjustment and forehead distance, ensure to adapt to not
Coplanar type.
Above-mentioned rigid material can be plastics, alloy etc., and flexible material can be silica gel, gel, foam, air bag, weaving
Product etc., the definition of this material are also applied for subsequent sections content.
The all parts that breathing mask 20 is included can use construction known in the art, therefore here no longer into one
Step detailed description.
Multiple preferred embodiments of ventilation control device provided by the invention are described in detail below in conjunction with attached drawing.
Referring to Fig. 2A -2B, ventilation control device 200 includes cavity 210 and valve module 220.
Cavity 210 has one or more blowing mouths and mask vent 211.In the embodiment of Fig. 2A -2B, gas transmission
Mouth is for example including the first blowing mouth 212A and the second blowing mouth 212B.Mask vent 211 is used to ventilate with breathing mask 20.Face
Cover blow vent 211 is for example connected to the mask through-hole of breathing mask 20.Although cavity 210 is generally in cylinder shown in figure
Shape, but in unshowned other embodiment, cavity 210 can also have other arbitrary shapes, can be with as long as can be formed
The sealing space ventilated with breathing mask 20.Hereafter describe component setting in the cavity/it is outer when can not consider
The wall thickness of cavity.If wall thickness taken into account, those skilled in the art is after reading the application it is appreciated that setting exists
Cavity inside/outside is possible to include the feelings being arranged between the inner face of cavity and outside (thickness between inner face and outside is wall thickness)
Condition.For example, " elastic valve nozzle is connected to through-hole on the outside of cavity " that will hereafter mention, according to the understanding to technical solution, bullet
Property valve nozzle can be connected to the wall of cavity in through-hole.The volume of cavity 210 is unlimited, is preferred with comfortable wearing.Cavity 210 can be with
It is made of flexible material or rigid material.The cavity 210 can unremovably be connected to breathing mask 20, so that ventilation controls
Device 200 is unremovably connected to breathing mask 20.The cavity 210 even can be with 22 shape of mask body 21 and spacer assembly
At cavity it is integral, so that cavity 210 and mask body 21 is integrally formed for example, by using molding process.In cavity 210 and mask
In the case that main body 21 is integral, cavity 210 can be formed as two chambers that obviously can be distinguished and be connected to cavity.In addition,
Cavity 210 can also make a part for cavity, that is to say, that for embodiment shown in Fig. 2A -2B, can utilize respiratory surface
Blowing mouth is formed on mask body 21 by a part for the cavity of cover as cavity 210.In this way, valve module 220 can be direct
It is arranged on mask body 21.It, can be in the face of cavity 210 in the embodiment of cavity 210 and 21 split settings of mask body
Connection structure 213 is set at cover blow vent 211.The connection structure 213 is for ventilation control device 200 to be detachably connectable to
Breathing mask 20.Connection structure 213 for example can be that buckle connecting structure, screw connection structure or elastomer hold connection structure tightly
Deng.In this way, ventilation control device 200 can be replaced at any time, and can be designed to the ventilation control device 200 can be direct
Applied to existing CPAP breathing masks, to reduce the use cost of patient.
Blowing mouth includes the expiration of the air-breathing of patient and patient for the gas exchanges between breathing mask 20 and air,
Completed by the blowing mouth.In the embodiment of Fig. 2A -2B, spaced first gas transmission is provided on cavity 210
Mouth 212A and the second blowing mouth 212B.In unshowned other embodiment, the quantity of blowing mouth can be for one or more than two
It is a.The preferred embodiment of setting one and more than two blowing mouth will be discussed hereinafter.Valve module 220 is arranged at least one gas transmission
At mouthful.Valve module 220 has cooperatively formed air inlet and exhaust outlet with blowing mouth.Air inlet and exhaust outlet can be with mask ventilations
Mouth 211 is connected to.As an example, when needing to form exhaust outlet, valve module may be at closed state, to block in blowing mouth
A part that is one or more, can even blocking one or more blowing mouths；When needing to form air inlet, valve module can be with
In open state, so that whole blowing mouths can be connected, or compare shielded area when being closed to blowing mouth
It is small, the air inlet for gas exchanges is formed in this way.Such as in the embodiment of Fig. 2A -2B, when valve module 220 is closed, hide
The first blowing mouth 212A is kept off, and the second blowing mouth 212B forms exhaust outlet；Valve module 220 open when, the first blowing mouth 212A and
Second blowing mouth 212B forms air inlet.
Valve module 220 is configured to the pressure P in cavity 2101Less than or equal to atmospheric pressure P0When (namely patient breaths
When), so that air inlet is connected to mask vent.Valve module 220 is also configured to the pressure P in cavity 2101More than atmospheric pressure P0
When patient expiration (namely), so that exhaust outlet is connected to mask vent.The cross-sectional area S of air inlet1More than exhaust outlet
Cross-sectional area S2.The cross-sectional area S of air inlet1It is relatively large, non-resistance or slight drag when realizing air-breathing.Exhaust outlet it is transversal
Area S2It is relatively small.Exhaust outlet can keep the pressure P in cavity 210 when exhaling1More than atmospheric pressure P0, and then formed and exhaled
Gas positive pressure.In the embodiment of Fig. 2A -2B, valve module 220 is arranged at the first blowing mouth 212A.Pressure in cavity 210
P1Less than or equal to atmospheric pressure P0When, valve module 220 can be enabled to open, gas is from the first blowing mouth 212A and the second blowing mouth
212B enters in cavity 210.First blowing mouth 212A and the second blowing mouth 212B is air inlet.As the pressure P in cavity 2101
More than atmospheric pressure P0When, valve module 220 can be enabled to close, only cavity 210 is discharged from the second blowing mouth 212B in gas.Second gas transmission
Mouth 212B is exhaust outlet.The cross-sectional area of second blowing mouth 212B can be arranged smaller, so that the rate of discharge of gas is less than
The expiration rate of patient, and then ensure to keep the pressure P in cavity 210 when expiration1More than atmospheric pressure P0.When air-breathing, the second gas transmission
Mouth 212B can also play the role of additional-air inlet, help that air-breathing is made to be intended to non-resistance.Related pathologies achievement in research shows
OSAHS patient's air flue in air-breathing does not block, and only has obstruction when exhaling.The present invention prevents upper breathing using exhaled positive pressure
Road collapses, and then plays therapeutic effect to OSAHS.
In one embodiment, valve module may include the valve made of elastic material or formative memory material and will
The valve is connected to the connector of cavity 210 in the first blowing mouth 212A.In this way, working as pressure P1Less than or equal to atmospheric pressure P0When,
Valve is opened into cavity 210, allows air into cavity 210.In another embodiment, valve module may include being arranged in chamber
The valve and biasing member of 210 inside of body.When the valve is closed, biasing member applies moving resistance against airintake direction to valve
Or applied force, valve are not resisted against on the inner wall of cavity 210；When there are internal and external pressure difference, gas overcomes moving resistance to make valve
Door is opened, and cavity 210 is allowed air into.Certainly, valve module 220 can also have numerous embodiments, as long as can realize
Above-mentioned function.
In a further preferred embodiment, regulating mechanism can be increased at the second blowing mouth 212B, for adjusting the
The breathing area of two blowing mouth 212B.The breathing area refers to the area that the second blowing mouth 212B can carry out gas exchanges with air
The area in domain.For example, when blocking a part of the second blowing mouth 212B, breathing area is the cross section of non-shield portions
Product；When not blocking the second blowing mouth 212B, breathing area is exactly the cross-sectional area of the second blowing mouth 212B.What is be mentioned below is logical
Gas area is referred to restriction herein.Cavity when breathing area by adjusting the second blowing mouth 212B can control expiration
Pressure P in 2101, and then the exhaled positive pressure of adjustment for the treatment of.Embodiment shown in Figure 3, shown in Fig. 2A -2B
Embodiment is essentially identical, is described in detail here only for difference, and same or analogous component will use it is identical
Reference numeral.Regulating mechanism 300 includes fixing piece 310, displaceable member 320, location structure 330 and regulating part 340.Fixing piece
310 are connected to cavity 210.Displaceable member 320 may be movably attached to fixing piece 310.Fixing piece 310 and displaceable member 320 are not
Close the second blowing mouth 212B, for example, can be arranged on fixing piece 310 and/or displaceable member 320 gas outlet 311, and/or
Junction between fixing piece 310 and displaceable member 320 forms gas outlet and/or by fixing piece 310 and/or removable
Part 320 is arranged to frame or web form, as long as the gas via the second blowing mouth 212B discharges can be allow to be discharged into greatly
In gas.Location structure 330 is used to position the position of displaceable member 320 relative to fixing piece 310.Implementation shown in Fig. 3
In example, location structure 330 can be provided in the screw thread being mutually matched on fixing piece 310 and displaceable member 320.It is being not shown
Other embodiment in, location structure can be buckle, fixed pin etc..The head 341 of regulating part 340 is configured to accommodate
In the second blowing mouth 212B.The head 341 of regulating part 340 has difference along the gas circulating direction of the second blowing mouth 212B
Cross-sectional area.As an example, head 341 can be in cone, truncated cone-shaped, pyramid, prismatic table shape etc.；Head 341 can be with
In step-like, there is different cross-sectional areas along gas circulating direction.Second blowing mouth 212B can be with the shape on head 341
Shape is adapted.Such as shown in Fig. 3, head 341 and the second blowing mouth 212B are in truncated cone-shaped.In addition, the second blowing mouth 212B
Or cylinder.In this way, when the different location on head 341 enters in the second blowing mouth 212B, it can be to flowing through
The air-flow of two blowing mouth 212B forms blocking, and then adjusts the breathing area of the second blowing mouth 212B.Head 341 is fully removed
When two blowing mouth 212B, the second blowing mouth 212B has maximum breathing area.Regulating part 340 is connected to displaceable member 320.Pass through
The movement of displaceable member 320 drives the regulating part 340 to be moved along the gas circulating direction of the second blowing mouth 212B.Also,
After being moved to appropriate location, the relative position between displaceable member 320 and fixing piece 310 is fixed by location structure 330.It needs
Bright, which can increase in any embodiment being previously mentioned above and below, if necessary, ability
The technical staff in domain is based on the understanding to embodiment shown in Fig. 3, can be in other embodiment in order to increase regulating mechanism
Section components carry out appropriate variations.Regulating mechanism described above will by patient or medical staff according to being adjusted the case where patient after
Position after adjustment is kept whithin a period of time, that is to say, that this adjusting and non real-time progress.In the following, we will introduce
A kind of pressure P according in cavity 2101The embodiment of the breathing area of the second blowing mouth is adjusted in real time.
In another embodiment, as shown in figure 4, regulating mechanism 400 includes elastic component 410.Elastic component 410 is connected to
At two blowing mouth 212B and cover the second blowing mouth 212B.Being provided on elastic component 410 makes the second blowing mouth 212B connect with air
Logical through-hole 420.Through-hole 420 is used to form exhaust outlet.Elastic component 410 can make slabbing.The breathing area of through-hole 420
With pressure P in cavity 2101Variation and change.When expiration, the pressure P in cavity 2101Increase, elastic component 410 will be towards chamber
The lateral expansion of body 210 increases the breathing area of through-hole 420.Thus, it is possible to offset pressure P in cavity 2101Variation, play
Certain adjustment effect makes pressure P1It keeps in a certain range, will not increase severely due to the violent expiration of patient.Similarly, it inhales
When gas, the pressure P in cavity 2101Reduce, valve module 220 is opened, and gas can be via the first blowing mouth 212A and the second gas transmission
Mouth 212B enters in cavity 210.In addition, elastic component 410 will also increase through-hole towards the medial expansion of cavity 210 when air-breathing
420 breathing area, and as the breathing area of patient respiratory more deep via 420 is bigger, contribute to patient's swimmingly air-breathing.
It is further preferred that as shown in figure 5, can be to increase elastic valve nozzle 500 in regulating mechanism shown in Fig. 4.Elasticity
Valve nozzle 500 is connected with the second blowing mouth 212B.As an example, elastic valve nozzle 500 is connected to through-hole in the outside of cavity 210
420.Preferably, elastic valve nozzle can be integrally formed with elastic component 410.Of course, it is possible to be connected to one using after separately formed
The mode risen.Elastic valve nozzle 500 is tapered along the outgassing direction of through-hole 420.When expiration, the pressure P in cavity 2101Increase, bullet
Property part 410 will towards the lateral expansion of cavity 210, increase through-hole 420 breathing area, the breathing area of elastic valve nozzle 500
Also it will increase, and then increase the cross-sectional area of exhaust outlet.Thus, it is possible to offset pressure P in cavity 2101Variation, play certain
Adjustment effect makes pressure P1It keeps in a certain range, will not increase severely due to the violent expiration of patient.And due to feather valve
The tapered design of mouth 500 can preferably control the deformation quantity of through-hole 420, and then more stably control pressure P in cavity 2101's
Variation.It is understood that the elasticity valve nozzle 500 can also increase in embodiment shown in Fig. 2A -2B.Elastic valve nozzle 500
It is connected with the second blowing mouth 212B.As an example, elastic valve nozzle 500 is connected to the second blowing mouth in the outside of cavity 210
212B.When patient expiration, the breathing area of elastic valve nozzle 500 increases, also can be to the air pressure P in cavity 2101Play certain adjusting
Effect.
In another group of embodiment, as shown in fig. 6, being provided with mask vent 611 and blowing mouth 612 on cavity 610.It is defeated
Gas port 612 can be one shown in figure, or multiple.It, can be with multiple blowing mouths in the case of multiple blowing mouths
It is all opened and closed, therein several can also be opened and closed by valve module 620 by valve module 620.Mask vent
611 is essentially identical with above-described mask vent.When valve module 620 is opened, blowing mouth 612 is opened, conversely, blowing mouth
612 are closed.Valve module 620 is configured to the pressure P in cavity 6101Less than or equal to atmospheric pressure P0Shi Kaiqi blowing mouths 612.
That is, valve module 620 is opened when air-breathing, blowing mouth 612 is air inlet.Valve module 620 is also configured in cavity 610
Pressure P1More than atmospheric pressure P0When close blowing mouth 612 a part.At this point, the rest part of blowing mouth 612 is exhaust outlet.Valve
Component 620 can have the vent openings for making cavity 610 and atmosphere.As an example, valve module 620 may include being unidirectional
The valve of valve, the valve are used to control the gas circulation of blowing mouth 612.The pressure P of valve in the cavity1Less than or equal to air
Press P0Shi Kaiqi, so that blowing mouth 612 is used as air inlet.Vent openings can be that through-hole 623 are arranged on valve.Through-hole 623
There is overlapping region with blowing mouth 612, using as exhaust outlet.In other embodiments, vent openings can also have other realities
Mode is applied, will be illustrated hereinafter in conjunction with Fig. 7.When expiration, the pressure P in cavity 6101More than atmospheric pressure P0, the pass of valve module 620
Blowing mouth 612 is closed, the gas of exhalation is discharged by through-hole 623.Through-hole 623 is used as exhaust outlet.In Fig. 6 the embodiment described,
Valve 621 at blowing mouth 612 (such as passing through connector 622) is as pivotally connected to cavity 610.Through-hole 623 is arranged in valve
On door 621.In one embodiment, the part of valve 621 at least being connect with connector 622 has elasticity, so that valve
621 is pivotable between open and closed positions.In unshowned other embodiment, valve is separately set with cavity 610
It sets.Valve can (such as passing through biasing member) may be movably attached to cavity between open and closed positions.Biasing
Valve is resisted against in 610 inside of cavity at blowing mouth 612 by component, and applies moving resistance to valve when valve is moved.This
Outside, there are bigoted component, valve can also be as pivotally connected to cavity 610.It will also be described hereinafter in conjunction with Fig. 9
The valve module that valve is provided separately with cavity 610.It will be seen that various forms may be used in valve, as long as can realize above-mentioned
Function.Through-hole 623 is provided on valve 621.Through-hole 623 is connected to blowing mouth 612.The cross-sectional area of through-hole 623 is small
In the cross-sectional area of blowing mouth 612.As the pressure P in cavity 6101More than atmospheric pressure P0When close blowing mouth 612, in cavity 610
Gas be discharged by through-hole 623.Through-hole 623 is usually smaller, to keep the pressure in cavity 610 to be more than atmospheric pressure when exhaling
P0。
In Fig. 2A -2B, 3-5 described embodiments, there are multiple blowing mouths, and gas transmission is opened and closed by valve module
It is one or several in mouthful, make the ventilation control device that there is different air inlet and exhaust outlet, and then adjust expiration and air-breathing
When gas flow, non-resistance when realizing air-breathing or slight drag and exhaled positive pressure.And the difference of embodiment shown in fig. 6
Place is, when air-breathing, valve module opens blowing mouth, forms air inlet, non-resistance or slight drag when realizing air-breathing.When exhaust,
Valve module closes a part for blowing mouth, such as through-hole is arranged on valve module (more specifically valve), to form exhaust
Mouthful.In addition, in unshowned other embodiment, when valve module can also be made to be set off blowing mouth, the valve of valve module is not
Blowing mouth is completely covered.By the slit-shaped between valve and blowing mouth at exhaust outlet.In this way, forming positive pressure environment when exhaling.
Fig. 7 A-7B show the breathing mask with ventilation control device according to an embodiment of the invention.As schemed
Show, valve module 720 includes the multiple valves 721 to circulate for controlling the gas of blowing mouth 712.Multiple valves 721 (such as pass through
Connector 722) at blowing mouth 712 pivotly or it may be movably attached to cavity 710.Multiple valves 721 and cavity 710
Connection type is referred to the description for the parts Fig. 6.Multiple valves 721 are set as the pressure P in cavity 7101Be less than or
Equal to atmospheric pressure P0Shi Kaiqi blowing mouths 712.When air-breathing, valve 721 is opened.It will be seen that various forms may be used in valve,
As long as above-mentioned function can be realized.Vent openings can be the opening 723 cooperatively formed by multiple valves 721.For example, more
A valve 721 can be spaced apart setting to form opening 723.Opening 723 has overlapping region with blowing mouth 712.When cavity 710
Interior pressure P1More than atmospheric pressure P0When part close blowing mouth 712, the gas in cavity 710 can pass through opening 723 and gas transmission
The overlapping region discharge of mouth 712.The overlapping region is exhaust outlet.The area of the overlapping region is less than the ventilation face of blowing mouth 712
Product.Opening 723 is usually smaller with the overlapping region of blowing mouth 712, to keep the pressure in cavity 710 to be more than air when exhaling
Press P0.The other component of ventilation control device shown in Fig. 7 can be same or similar with any embodiment above-mentioned, here no longer
Detailed description.
Preferably, blowing mouth (such as 612 and 712) is oppositely arranged with mask vent (such as 611 and 711), so as to suffer from
The gas of person's exhalation is directly discharged by exhaust outlet 212, residual to avoid the carbon dioxide in breathing mask 20 and cavity 210
It stays.It can also make cavity 610 and 710 that there is relatively small length in addition, blowing mouth is oppositely arranged with mask vent so that
The structure increase of the ventilation control device is compact, and volume is more small and exquisite.
In addition, valve 621 and 721 can be made of elastic material so that through-hole 623 and the breathing area of opening 723 with
Pressure P in cavity 610 and 7101Increase and increase.When expiration, the pressure P in cavity 610 and 7101Increase, 621 He of valve
721 will be towards cavity 610 and 710 lateral expansion or deformation, increase through-hole 623 and opening 723 breathing area, Jin Erzeng
Big deflation rate.Thus, it is possible to offset pressure P in cavity 610 and 7101Variation, play certain adjustment effect, make pressure P1It protects
It holds in a certain range, will not increase severely due to the violent expiration of patient.
It is further preferred that as shown in figure 8, increasing regulating mechanism in ventilation control device that can be shown in Fig. 6, also
It is elastic valve nozzle 800.Elastic valve nozzle 800 and the principle of elastic valve nozzle 500 shown in fig. 5 are essentially identical.Elastic valve nozzle 800 is arranged
It is connected on valve 621 and with through-hole 623.As an example, elastic valve nozzle 800 is connected to through-hole 623 on the outside of cavity.It is preferred that
Ground, elastic valve nozzle 800 can be integrally formed with valve 621.Of course, it is possible to using the side to link together after separately formed
Formula.Elastic valve nozzle 800 is tapered along the outgassing direction of through-hole 623.When expiration, the pressure P in cavity 6101Increase, elastic valve
Door 621 will increase the breathing area of through-hole 623, the breathing area of elastic valve nozzle 800 towards the lateral expansion of cavity 610
It will increase, and then increase deflation rate.Thus, it is possible to offset pressure P in cavity 6101Variation, play certain adjustment effect,
Make pressure P1It keeps in a certain range, will not increase severely due to the violent expiration of patient.And gradually due to elastic valve nozzle 800
Contracting design can preferably control the deformation quantity of through-hole 623, and then more stably control pressure P in cavity 6101Variation.
In addition, other types of regulating mechanism can also be arranged in through hole, the breathing area for adjusting through-hole.As showing
Example, as shown in figure 9, regulating mechanism 930 includes fixing piece 931, displaceable member 932, location structure 933 and regulating part 934.The tune
It is similar to save the regulating mechanism 300 of mechanism 930 as shown in figure 3.Fixing piece 931 is connected to valve 921.In this embodiment, valve group
Part may include valve 921 and biasing member 923.Valve 921 moves between open and closed positions.Valve 921
On be provided with through-hole 922.Biasing member 923, which applies valve 921 when valve 921 is moved from closed position to open position, to be moved
Dynamic resistance.As an example, valve 921 can be resisted against in 910 inside of cavity at blowing mouth 912 by biasing member 923.Certainly,
Valve or the valve of other forms shown in Fig. 6,7A-7B and 8 can also be used.Displaceable member 932 may be movably attached to solid
Determine part 931.Fixing piece 931 and displaceable member 932 do not close through-hole 922, such as can be in fixing piece 931 and/or displaceable member
Blow vent (such as blow vent 940) is set on 932, and/or the junction between fixing piece 931 and displaceable member 932 is formed
Blow vent and/or fixing piece 931 and/or displaceable member 932 are arranged to frame or web form, if can make through
The gas being discharged by through-hole 922 can be discharged into air.Fixing piece 931 and displaceable member 932 are only shown in figure
One example.Location structure 933 is used to position the position of displaceable member 932 relative to fixing piece 931.Implementation shown in Fig. 9
In example, location structure 933 can be provided in the screw thread being mutually matched on fixing piece 931 and displaceable member 932.It is being not shown
Other embodiment in, location structure 933 can be buckle, fixed pin etc..The head 935 of regulating part 934 is configured to
It is contained in through-hole 923.The head 935 of regulating part 934 has different cross sections along the gas circulating direction of through-hole 923
Product.In this way, when the different location on head 935 enters in through-hole 923, it can be formed and be stopped with the air-flow of convection current via through holes 923,
And then adjust the breathing area of blowing mouth 912.Regulating part 934 is connected to displaceable member 932.Pass through the movement of displaceable member 932
To drive regulating part 934 to be moved along the gas circulating direction of through-hole 923.Also, after being moved to appropriate location, tied by positioning
Structure fixes the relative position between displaceable member 932 and fixing piece 931.
In another group of embodiment, another form of ventilation control device is provided.The ventilation control device includes chamber
Body 1010 and valve module 1020.Cavity 1010 has mask vent 1011 and blowing mouth 1012.Cavity 1010 and above-mentioned implementation
Example is similar.In the setting of valve module 1020 and blowing mouth 1011.As an example, the edge of valve module 1020 is connected to blowing mouth
1012, to cover blowing mouth 1012.Valve module 1020 can be connected to the side wall of blowing mouth 1012 in blowing mouth 1012, or
It is connected to the end of blowing mouth 1012 in the outside of blowing mouth 1012.It is provided on valve module 1020 and is connected with blowing mouth 1012
Through-hole 1022.The expiration and air inlet of patient is carried out by the through-hole 1022.Non-resistance or slight drag when in order to realize air-breathing
And exhaled positive pressure, valve module 1020 are configured to the pressure P in cavity 10101Less than atmospheric pressure P0When (when air-breathing) to cavity
1010 inner hump forms air inlet so that through-hole 1022 becomes larger.And valve module 1020 is also configured in cavity 1010
Pressure P1More than atmospheric pressure P0When (when exhaling) limit outer bumps of the valve module 1020 to cavity 1010.In this way, keeping logical
The breathing area in hole is constant, forms exhaust outlet.It should be noted that in this embodiment, the main region of air inlet and exhaust outlet
It is not the change of cross-sectional area.As an example, valve module 1020 can be by arbitrarily having different deformation amount towards both direction
Single or composite material formed.In addition, valve module 1020 can also be made of elastic material, which further includes bullet
Property valve nozzle, the elasticity valve nozzle can similar to Fig. 5 elastic valve nozzle 500 and Fig. 8 elastic valve nozzle 800.Only valve module 1020
Elastic valve nozzle be arranged in the inside of cavity 1010, and it is tapered along the airintake direction of through-hole.In this way, valve module when air-breathing
1020 swell into cavity 1010, through-hole become large-sized and the opening size of elastic valve nozzle also increases.When expiration, feather valve
Mouth is assembled to center, and opening size is caused to become smaller, and forms exhaled positive pressure.
In a preferred embodiment, valve module 1020 may include elastic valve plate 1021.Elastic valve plate 1021 is set to
On blowing mouth 1012, to cover blowing mouth 1012.The edge of elastic valve plate 1021 is connected to blowing mouth 1012.As an example, bullet
Property valve block 1021 can be connected to blowing mouth 1012 by connector.The connector can be adhesive, retainer ring or screw element etc..
In addition, elastic valve plate 1021 can also be connected to blowing mouth 1012 by the crimping structure at blowing mouth 1012.Elastic valve plate
1021 covering blowing mouths 1012.Through-hole 1022 is arranged on elastic valve plate 1021 (such as in its central area).When air-breathing, cavity
Pressure P in 10101Less than atmospheric pressure P0, elastic valve plate 1021 (especially its central area) swells into cavity 1010, makes to lead to
Hole 1022 becomes larger, and realizes non-resistance or slight drag air-breathing.Valve module 1020 further includes stop part 1023.The setting of stop part 1023 exists
The side of the separate cavity 1010 of elastic valve plate 1021.When expiration, the pressure P in cavity 10101More than atmospheric pressure P0, feather valve
The trend swelled or deformed outside 1021 oriented cavity 1010 of piece.But due to the limitation of stop part 1023, backstop elastic valve plate
1021 (especially its central area) are swelled to outside cavity 1010, and elastic valve plate 1021 can not deform, therefore the ruler of through-hole 1022
It is very little constant, there is smaller breathing area relative to air-breathing.It is protected in cavity 1010 when through-hole 1022 is sized to exhale
Hold exhaled positive pressure.It will be seen that stop part 1023 can be such that air-flow flows through, such as gas can be arranged on stop part 1023
Hole 1024, or stop part 1023 etc. is made using metal mesh.
The present invention also provides a kind of breathing mask equipment.The breathing mask equipment includes any respiratory surface described above
Cover and any ventilation control device described above.Ventilation control device is connected to breathing mask, and passes through mask ventilation
Mouth is ventilated with breathing mask.The all parts that are included for them, structure are referred to the description of corresponding portion above.
When patient expiration, the pressure in breathing mask can superatmospheric.The characteristics of present invention is changed using expiration air pressure,
A kind of ventilation control device for the air inlet and exhaust outlet being respectively provided with varying cross-section product in air-breathing and expiration is provided, and
And exhaust outlet has relatively small cross-sectional area, and then the positive-pressure function of expiratory phase is realized, it avoids continuing (to exhale and inhale
Gas) patient caused by positive pressure is uncomfortable；The ventilation control device provides exhaled positive pressure using the mechanical structure of itself, therefore uses
Shi Wuxu connection barotropic gas feedway (such as CPAP lung ventilators) and pipeline etc., to facilitate patient to move；When outgoing without
Barotropic gas feedway need to be carried, patient can wear the breathing mask with the ventilation control device and treat at any time.
In addition, the ventilation control device compact, is convenient for carrying, cost is relatively low.
The present invention is illustrated by above-described embodiment, but it is to be understood that, above-described embodiment is only intended to
The purpose of citing and explanation, and be not intended to limit the invention within the scope of described embodiment.In addition people in the art
It is understood that the invention is not limited in above-described embodiment, introduction according to the present invention can also be made more kinds of member
Variants and modifications, these variants and modifications are all fallen within scope of the present invention.Protection scope of the present invention by
The appended claims and its equivalent scope are defined.
Claims (7)
1. a kind of ventilation control device for breathing mask, which is characterized in that including：
Cavity, with mask vent and one or more blowing mouths, the mask vent is used to connect with breathing mask
It is logical；
Valve module is arranged at least one blowing mouth；
The valve module cooperatively forms air inlet and exhaust outlet with the blowing mouth；The valve module is configured in the cavity
Pressure be less than or equal to atmospheric pressure when so that the air inlet is connected to the mask vent, pressure in the cavity is big
The exhaust outlet is set to be connected to the mask vent when atmospheric pressure；
Wherein, the cross-sectional area of the air inlet is more than the cross-sectional area of the exhaust outlet, and the exhaust outlet can exhale
When keep pressure in the cavity to be more than atmospheric pressure；The blowing mouth includes spaced first blowing mouth and the second gas transmission
Mouthful, the valve module is arranged at first blowing mouth；Pressure in the cavity opens institute when being less than or equal to atmospheric pressure
The first blowing mouth is stated, first blowing mouth and second blowing mouth are the air inlet；Pressure in the cavity is more than
First blowing mouth is closed when atmospheric pressure, second blowing mouth is the exhaust outlet.
2. ventilation control device as described in claim 1, which is characterized in that be provided with adjusting machine at second blowing mouth
Structure, the breathing area for adjusting second blowing mouth.
3. ventilation control device as claimed in claim 2, which is characterized in that the regulating mechanism includes：
Fixing piece is connected to the cavity；
Displaceable member may be movably attached to the fixing piece；
Location structure is used to position the position of the displaceable member relative to the fixing piece；And
Regulating part, the head configuration of the regulating part are that can be contained in second blowing mouth and along second gas transmission
There is the gas circulating direction of mouth different cross-sectional areas, the regulating part to be connected to the displaceable member, the displaceable member
The regulating part can be driven to be moved along the gas circulating direction of second blowing mouth.
4. ventilation control device as claimed in claim 2, which is characterized in that the regulating mechanism includes elastic component, the bullet
Property part be connected at second blowing mouth and cover second blowing mouth, on the elastic component setting make second gas transmission
The through-hole of mouth and atmosphere, the breathing area of the through-hole increase with the increase of the cavity internal pressure.
5. the ventilation control device as described in claim 2 or 4, which is characterized in that the regulating mechanism further includes and described
The elastic valve nozzle that two blowing mouths are connected, the elasticity valve nozzle are tapered along the outgassing direction of second blowing mouth.
6. a kind of breathing mask equipment, which is characterized in that including：
Breathing mask；And
Ventilation control device as described in any one of claim 1-5, the ventilation control device are connected to the respiratory surface
Cover, and ventilated by the mask vent and the breathing mask.
7. breathing mask equipment as claimed in claim 6, which is characterized in that the breathing mask includes mask body and connection
Spacer assembly on to the mask body, the spacer assembly is for the facial contact with patient, the mask body and institute
It states spacer assembly and cavity for being connected to the mouth of patient and/or nose is collectively formed,
Wherein, the cavity of the ventilation control device is a part for the cavity, the ventilation control device it is described
Valve module is arranged on the mask body.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510696678.2A CN105194781B (en) | 2015-10-23 | 2015-10-23 | Ventilation control device and breathing mask equipment with the ventilation control device |
| CN201811133670.5A CN109331309A (en) | 2015-10-23 | 2015-10-23 | Ventilation control device and breathing mask equipment with the ventilation control device |
| PCT/CN2015/100045 WO2017067083A1 (en) | 2015-10-23 | 2015-12-31 | Ventilation control apparatus, and breathing mask device provided with ventilation control apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510696678.2A CN105194781B (en) | 2015-10-23 | 2015-10-23 | Ventilation control device and breathing mask equipment with the ventilation control device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811133670.5A Division CN109331309A (en) | 2015-10-23 | 2015-10-23 | Ventilation control device and breathing mask equipment with the ventilation control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105194781A CN105194781A (en) | 2015-12-30 |
| CN105194781B true CN105194781B (en) | 2018-11-09 |
Family
ID=54942948
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811133670.5A Pending CN109331309A (en) | 2015-10-23 | 2015-10-23 | Ventilation control device and breathing mask equipment with the ventilation control device |
| CN201510696678.2A Active CN105194781B (en) | 2015-10-23 | 2015-10-23 | Ventilation control device and breathing mask equipment with the ventilation control device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811133670.5A Pending CN109331309A (en) | 2015-10-23 | 2015-10-23 | Ventilation control device and breathing mask equipment with the ventilation control device |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN109331309A (en) |
| WO (1) | WO2017067083A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109331309A (en) * | 2015-10-23 | 2019-02-15 | 北京怡和嘉业医疗科技股份有限公司 | Ventilation control device and breathing mask equipment with the ventilation control device |
| CN109681679A (en) * | 2019-02-26 | 2019-04-26 | 昆山远山天地软件技术有限公司 | Fluid one-way conduction structure, non-return component and breathing apparatus |
| CN111110974A (en) * | 2019-12-31 | 2020-05-08 | 北京怡和嘉业医疗科技股份有限公司 | Flow adjusting device and flow-adjustable breathing mask |
| WO2022222039A1 (en) * | 2021-04-20 | 2022-10-27 | 深圳麦科田生物医疗技术股份有限公司 | Gas mixing device, breathing air supply system, and medical apparatus |
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- 2015-10-23 CN CN201811133670.5A patent/CN109331309A/en active Pending
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2017067083A1 (en) | 2017-04-27 |
| CN109331309A (en) | 2019-02-15 |
| CN105194781A (en) | 2015-12-30 |
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