CN105169541B - 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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- CN105169541B CN105169541B CN201510696722.XA CN201510696722A CN105169541B CN 105169541 B CN105169541 B CN 105169541B CN 201510696722 A CN201510696722 A CN 201510696722A CN 105169541 B CN105169541 B CN 105169541B
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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. ventilators; 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, with blowing mouth；Valve module is arranged at the blowing mouth, and the valve module is configured to keep the intracorporal pressure of the chamber to be greater than atmospheric pressure when exhaling；And heat moisture exchanger, the mask vent being connected with the blowing mouth is provided on the heat moisture exchanger or the cavity, the mask vent that the mask vent is used to ventilate with breathing mask is connected to, the heat moisture exchanger is connected to the blowing mouth, so that expiration and air-breathing are all via the heat moisture exchanger.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 mobile；Without carrying barotropic gas feedway when outgoing.In addition, the ventilation control device compact, is convenient for carrying, cost is relatively low.
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 technique
The method for the treatment of obstructive sleep apnea low-ventilatory syndrome (OSAHS) mainly has surgical operation, mouth at present
Chamber rectifier, continuous positive pressure ventilation (CPAP) and positive end-expiratory pressure (positive end-expiratory pressure,
PEEP it) treats.
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 time/hour.For this method due to that need to have an operation, patient acceptance is low, and surgical tissue is grown again
It will cause Relapse rate, and can not perform the operation again later.
Oral cavity orthopetical device is usually used in simple snore disease and slight OSAHS patient (AHI < 15 time/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 ventilator 130 by connecting line 120, and
The breathing mask 110 is worn to the face of patient.CPAP ventilator 130 generates lasting positive pressure gas flow, thus 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 ventilator limitation patient at night activity, compliance is low；CPAP breathing
Machine is inconvenient to carry and higher cost.Breathing mask is treated in the case where several different for disordered breathing, such as obstructive
The treatment etc. of sleep apnea syndrome；Or in other cases for providing stable inhalable air-flow.
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, at least to be partially solved problems as mentioned above.
Summary of the invention
In order at least be partially solved problems of the prior art, the present invention provides a kind of for the logical of breathing mask
Gas control device and breathing mask equipment with the ventilation control device.
The ventilation control device for breathing mask provided according to an aspect of the present invention, comprising: cavity has
Blowing mouth；Valve module is arranged at the blowing mouth, and the valve module is configured to keep the intracorporal pressure of the chamber when exhaling
Greater than atmospheric pressure；And heat moisture exchanger, it is provided on the heat moisture exchanger or the cavity and is connected with the blowing mouth
Mask vent, for being connected to breathing mask, the heat moisture exchanger is connected to the mask vent with the blowing mouth,
So that expiration and air-breathing are all via the heat moisture exchanger.
Preferably, the heat moisture exchanger includes: shell；Hydrophobic membrane is filled in the shell；It absorbs water and hydrophilic
Layer, is attached to the surface of the hydrophobic membrane.
It preferably, further include being set to the intracorporal filter assemblies of the shell in the heat moisture exchanger, for filtering particle
And/or microorganism.
Preferably, wherein the mask vent is arranged on the heat moisture exchanger, the cavity further includes interface, and
The heat moisture exchanger is detachably connectable to the cavity in the interface, so that the heat moisture exchanger and the interface
Ventilation；Or the mask vent is arranged on the cavity, the heat moisture exchanger at the blowing mouth removably
It is connected to the valve module or the cavity, so that the heat moisture exchanger is connected to the blowing mouth；Or the mask is logical
Port is arranged on the cavity, and in the cavity, the valve module is detachably connectable to for the heat moisture exchanger setting
The blowing mouth of the cavity.
Preferably, the valve module has inlet channel and exhaust passage, and the inlet channel and the exhaust passage are logical
It crosses the blowing mouth to be connected to the cavity, wherein when the valve module is configured to pressure in the cavity less than atmospheric pressure
The inlet channel is connected；And the difference of pressure and atmospheric pressure in the cavity be greater than predetermined value when make the exhaust passage
Conducting.
Preferably, the valve module includes: the first valve system, has the first closed position for closing the blowing mouth and beats
The first open position of the blowing mouth is opened, is provided with through-hole on first valve system；And second valve system, setting exist
The through hole has the second closed position for closing the through-hole and opens the second open position of the through-hole.
Preferably, first valve system includes: the first spool, and the through-hole is arranged on first spool；First
Biasing member, contact is on first spool to provide to first spool from first closed position to described first
The moving resistance of open position.
Preferably, the valve module includes the valve seat being connected at the blowing mouth, is provided with gas outlet on the valve seat,
First valve system is arranged in the valve seat.
Preferably, second valve system includes the flap made of elasticity or formative memory material, the flap connection
To first valve system.
Preferably, the blowing mouth includes air inlet and exhaust outlet, and the valve module includes: intake valve, is arranged in institute
It states at air inlet, the intake valve is configured to the unlatching when the intracorporal pressure of the chamber is less than atmospheric pressure；And exhaust valve, it sets
It sets in the exhaust ports, the exhaust valve is configured to open when the intracorporal pressure of the chamber and the difference of atmospheric pressure are greater than predetermined value
It opens.
Preferably, the valve module includes regulating mechanism, and the regulating mechanism is for adjusting the predetermined value.
Preferably, the valve module and the blowing mouth cooperatively form air inlet and exhaust outlet；The valve module is configured to
Pressure in the cavity is connected to the air inlet with the mask vent when being less than atmospheric pressure, and in the cavity
Pressure be greater than atmospheric pressure when be connected to the exhaust outlet with the mask vent, wherein the cross-sectional area of the air inlet
Cross-sectional area greater than the cross-sectional area of the exhaust outlet, and the exhaust outlet keeps the intracorporal pressure of the chamber when being set as and exhaling
Power is greater than atmospheric pressure.
Preferably, the blowing mouth includes spaced first blowing mouth and the second blowing mouth, the valve module setting
At first blowing mouth；The chamber intracorporal pressure opens first blowing mouth when being less than atmospheric pressure, and described first is defeated
Port and second blowing mouth form the air inlet；It is defeated that the chamber intracorporal pressure closes described first when being greater than atmospheric pressure
Port, second blowing mouth are the exhaust outlet.
The breathing mask equipment provided according to another aspect of the present invention, comprising: breathing mask；And it is as described above
Any ventilation control device, the ventilation control device are connected to the breathing mask, and by the mask vent with
The breathing mask ventilation.
Ventilation control device provided by the invention realizes the positive-pressure function of expiratory phase, avoids patient caused by continuous positive pressure
It is uncomfortable；Without connecting barotropic gas feedway (such as CPAP ventilator) and pipeline etc. when use, to facilitate patient mobile；
Without carrying barotropic gas feedway when outgoing, patient can wear at any time the breathing mask with the ventilation control device into
Row treatment.The ventilation control device also adds heat moisture exchanger, using the intracorporal moisture of expiratory air and heat to sucking gas
Heating humidifying is carried out, moisture and heat is made to be recycled, avoids mucociliary in temperatureization and humidifying deficiency bring respiratory tract
Movement system is slack-off, secretion is assembled, secretion becomes viscous, the danger of bacteria planting, improves lung compliance and patient comfort.
In addition, such heat moisture exchanger compact structure, using easy, cost is relatively low, therefore can be made primary
Property consumables, do not breed bacterium danger and cleaning and sterilizing trouble；Also danger not electrically and thermally, can be to a certain extent
Avoid humidifying deficiency or humidifying excessive.
A series of concept of reduced forms is introduced in summary of the invention, 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 scope 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.
Detailed description of the invention
Following drawings of the invention is incorporated herein as part of the present invention for the purpose of understanding 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 perspective view of the breathing mask with ventilation control device according to an embodiment of the invention；
Fig. 2 B is the full sectional view of the ventilation control device and breathing mask in Fig. 2A；
Fig. 3 is according to the cavity of first embodiment of the invention and the cross-sectional view of valve module；
Fig. 4 is the cross-sectional view of the breathing mask with ventilation control device according to a second embodiment of the present invention；
Fig. 5 is the cross-sectional view of the breathing mask with ventilation control device according to a third embodiment of the present invention；
Fig. 6 is according to the cavity of fourth embodiment of the invention and the cross-sectional view of valve module；
Fig. 7 A is according to the cavity of fifth embodiment of the invention and the cross-sectional view of valve module；And
Fig. 7 B is according to the cavity of sixth embodiment of the invention and the cross-sectional view of valve module.
110, breathing mask；120, connecting line；130, CPAP ventilator；20, breathing mask；21, mask body；22,
Spacer assembly；23, support section；24, forehead support；200, ventilation control device, 210, cavity；211, interface；212A,
One blowing mouth；212B, the second blowing mouth；220, intake valve；221, connector；230, exhaust valve；231, delivery valve seat；232, it arranges
Gas valve core；233, exhaust valve biasing member；234, gas outlet；240, heat moisture exchanger；241, mask vent；242, connection knot
Structure；243, interface；310, cavity；312A, the first blowing mouth；312B, the second blowing mouth；320, valve module；400, ventilation control
Device, 410, cavity；411, mask vent；412, blowing mouth；413, connection structure；420, valve module；421, valve seat；
421A, gas outlet；421B, fixing piece；421C, displaceable member；422, the first valve system；422A, the first spool；422B, through-hole；
422C, the first biasing member；423, the second valve system；440, heat moisture exchanger；510, cavity；511, mask vent；512,
Blowing mouth；520, valve module；540, heat moisture exchanger；610, cavity；612, blowing mouth；613, the wall extension of cavity；620, valve
Component；621, the first valve system；622, the second valve system；623, through-hole；710, cavity；712, blowing mouth；720, valve module；
721, valve seat；721B, fixing piece；721C, displaceable member；722, the first valve system；722A, the first spool；722B, through-hole；
722C, the first biasing member；723, the second valve system；The second spool of 723A；723B, the second biasing member；723C, sealing element.
Specific embodiment
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 the preferred embodiment of the present invention described below, and the present invention may not need one
Or multiple such details and be carried out.In addition, in order to avoid confusion 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 oronasal mask type breathing mask shown in attached drawing 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 perspective view of Fig. 2A and the cross-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 nose plug type breathing mask 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, mouth 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, is also possible to membrane structure.Membrane structure can be single layer or isolated bilayer.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
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, this structure can equally have single layer or isolated double membrane structure.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 is also comprising the fixing piece, such as buckle, bandage ring etc. for being connected and fixed component.Gu
Determine part and can be used as independent part to be connected on mask body 21, it can also 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.The material of headband can be using braided fabric, elastomer etc. (wherein
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 be made into 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 is also possible to directly
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 when in use on the forehead of patient.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 portion.The forehead support 24 can also have adjustment device, with adjustment and forehead distance, guarantee 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.
It is described in detail below in conjunction with multiple preferred embodiments of the attached drawing to ventilation control device provided by the invention.
A-2B referring to fig. 2, ventilation control device 200 include cavity 210, valve module (including 220 and 230) and heat moisture exchanger (HME)
240。
Cavity 210 has blowing mouth.Although 210 generally cylindrical shape of cavity shown in figure, unshowned
In other embodiments, cavity 210 can also have other arbitrary shapes, as long as being capable of forming can be led to breathing mask 20
The sealing space of gas.The volume of cavity 210 is unlimited, is preferred with comfortable wearing.Cavity 210 can be by flexible material or rigidity
Material is made.
For blowing mouth for the gas exchanges between cavity 210 and atmosphere, the expiration of air-breathing and patient including patient is logical
The blowing mouth is crossed to complete.In the embodiment of Fig. 2A -2B, two blowing mouths, i.e. the first blowing mouth 212A are set on cavity 210
With the second blowing mouth 212B.Wherein, the first blowing mouth 212A is used as air inlet, and the second blowing mouth 212B is used as gas outlet.?
In unshowned other embodiments, the quantity of blowing mouth can be one or more.One or more blowing mouths are being set
In the case of, all or part of these blowing mouths can also be made not only to be used as air inlet but also be used as outlet by the setting of valve module
Mouthful.The embodiment of setting one and multiple blowing mouths will be also introduced hereinafter.
The pressure P in cavity 210 is kept when valve module is configured to exhale1Greater than atmospheric pressure P0.In the embodiment of Fig. 2A -2B
In, valve module may include that the intake valve 220 at the first blowing mouth 212A is arranged in and is arranged at the second blowing mouth 212B
Exhaust valve 230.As the pressure P in cavity 2101Less than or equal to atmospheric pressure P0When, intake valve 220 can be enabled to open, gas is from the
One blowing mouth 212A enters in cavity 210.As the pressure P in cavity 2101Greater than atmospheric pressure P0When, intake valve 220 can be enabled to close
It closes, exhaust valve 230 is enabled to open in any case.Such as the pressure P in cavity 2101With atmospheric pressure P0Difference be greater than predetermined value
Seasonal exhaust valve 230 is opened, so that cavity 210 is discharged from the second blowing mouth 212B in gas.It can keep in cavity 210 in this way
Pressure P1Greater than atmospheric pressure P0.In addition, as shown in figure 3, can also be arranged smaller by the opening area of the second blowing mouth 312B,
The rate of discharge of gas is set to be less than the expiration rate of patient, to form exhaled positive pressure when exhaling.And in valve module 320 and Fig. 2
Intake valve 220 it is same or similar.When air-breathing, valve module 320 opens the first blowing mouth 312A, and the second blowing mouth 312B can also rise
To the effect of additional-air inlet.In this manner it is achieved that non-resistance or slight drag when air-breathing.Related pathologies research achievement shows OSAHS
Patient's air flue in air-breathing does not block, and only has obstruction when exhaling.The present invention prevents the upper respiratory tract from collapsing using exhaled positive pressure
It falls into, and then therapeutic effect is played to OSAHS.
In one embodiment, intake valve 220 includes the flap made of elastic material or formative memory material.Flap exists
It is connected in cavity 210 at first blowing mouth 212A, such as is connected directly between on the wall of cavity 210 or passes through intermediate member
(such as connector 221 in Fig. 2) is connected on cavity 210.Intake valve 220 can be opened unidirectionally, i.e., when the pressure in cavity 210
Power P1Less than or equal to atmospheric pressure P0When, to opening on the inside of cavity 210, air passes through the first blowing mouth 212A and enters intake valve 220
In cavity 210.Certainly, intake valve can also have other set-up modes, as long as can be in the pressure P in cavity 2101Be less than or
Equal to atmospheric pressure P0The first blowing mouth of Shi Kaiqi 212A.Sealing between intake valve 220 and the first blowing mouth 212A can be with
The design taken various forms, the sealing cooperation between intake valve 220 and the first blowing mouth 212A include line and plane cooperation, put down
Face and plane cooperation, line and cylindrical surface cooperation, cylindrical surface and cylindrical surface cooperation, line and mating spherical surfaces, spherical surface and mating spherical surfaces, line
With circular conical surface cooperation, circular conical surface and circular conical surface cooperation etc. shape.The material of sealing fit portion point can be rigid, flexible flexible
Combination.The shape and material of above-mentioned sealing fit portion point are equally applicable in following various valves.
In one embodiment, exhaust valve 230 can also include delivery valve seat 231, exhaust plug 232 and exhaust valve biasing
Component 233.Delivery valve seat 231 is connected to the second blowing mouth 212B, and gas outlet 234 is provided on delivery valve seat 231.Exhaust valve
Core 232 is movably disposed in delivery valve seat 231 between its closed position and its open position.The movement includes translation
And rotation.Fig. 2 B shows the embodiment of translational movement.Exhaust plug 232 can close the second blowing mouth at its closed position
212B, and the second blowing mouth 212B and gas outlet 234 can be made to be in fluid communication in its open position, to form exhaust passage.
Exhaust valve biasing member 233 applies bias force to exhaust plug 232 against discharge directions.That is, upon exhalation, need gram
The resistance for taking the generation of exhaust valve biasing member 233 makes exhaust plug 232 be moved to its open position from its closed position, can
Make the gas discharge of exhalation.Exhaust valve biasing member 233 can be set in the side away from cavity 210 of exhaust plug 232, and
Pressure just is applied to it when exhaust plug 232 is in the closed position.It needs that the pressure is overcome to move exhaust plug 232 when expiration
It moves to closed position.In the moving process, the pressure that exhaust valve biasing member 233 applies increases.In other unshowned realities
It applies in example, exhaust valve biasing member can be set in the side towards cavity 210 of exhaust plug 232, and in exhaust plug 232
Apply pulling force to regard to it when in the closed position.It needs to overcome the pulling force that exhaust plug 232 is made to be moved to closed position when expiration.
In the moving process, the pulling force that exhaust valve biasing member 233 applies increases.Exhaust valve biasing member 233 can for spring or
Other elastomers etc. can also be made of formative memory material, and formative memory material is, for example, the conjunction with formative memory performance
Gold or plastics etc..In addition, exhaust valve 230 can also be using the structure similar to intake valve 220.
Heat moisture exchanger 240 is used to carry out temperatureization and humidifying to the gas of sucking, to reduce respiratory tract dehydration.Hot and humid area
Device 240 is passive humidification-type, i.e., when gas breathes out, the intracorporal moisture of expiratory air and heat are remained, to sucking gas
Body carries out heating humidifying, and moisture and heat is made to be recycled.Such 240 compact structure of heat moisture exchanger uses letter
Just, cost is relatively low, therefore can be made expendable consumed product, does not breed the danger and the trouble of cleaning and sterilizing of bacterium；Do not have yet
There is danger electrically and thermally, can avoid humidifying deficiency or humidifying excessive to a certain extent.On heat moisture exchanger 240 or cavity 210
It is provided with the mask vent for ventilating with breathing mask 20.Heat moisture exchanger 240 is connected to cavity 210 so that exhale and
Air-breathing is all via the heat moisture exchanger 240.In the embodiment shown in Fig. 2A -2B, mask vent 241 is arranged in hot and humid area
On device 240.Mask vent 241 is used to ventilate with breathing mask 20.Mask vent 241 is for example connected to breathing mask 20
Mask through-hole.In other embodiments, connection structure 242 can be set at mask vent 241.The connection structure 242 is used
In ventilation control device 200 is detachably connectable to breathing mask 20.Connection structure 242 for example can be to snap connection knot
Structure, screw connection structure or elastomer hold connection structure etc. tightly.In this way, ventilation control device 200 can be replaced at any time, and can
To be designed to the ventilation control device 200 to may be directly applied to existing CPAP breathing mask, to reduce the use of patient
Cost.In addition, cavity 210 further includes interface 211.Heat moisture exchanger 240 is detachably connectable to cavity at the interface 211
210, to ventilate with heat moisture exchanger 240 and interface 211.It can be set on heat moisture exchanger 240 and connect with what interface 211 matched
Mouth 243, keeps heat moisture exchanger 240 and cavity 210 detachably connected.What interface can take various forms, for example including cone
Shape axis hole is fixed form, click on fashion, threaded form or elastomer holding form etc..Heat moisture exchanger 240 and chamber
Body 210, which can also make, integrally can not be split.In embodiment later, it will also introduce mask vent and be arranged in cavity
Embodiment on 210.
In a preferred embodiment, heat moisture exchanger 240 includes shell, hydrophobic membrane and water suction and hydrophilic layer.Hydrophobic membrane
It is filled in shell.Hydrophobic membrane can be in rugosity in shell.Water suction and hydrophilic layer are attached to the surface of hydrophobic membrane.Hydrophobic membrane
Material can be Kynoar (PVDF), polyurethane (PUR), polyester (PES), polylactic acid (PLA), polycaprolactone
(PCL), one of polypropylene (PP), polyester (PES) or a variety of.Water suction and hydrophilic layer can be by water-absorbent materials and water wetted material
It is made.Water-absorbent material can tire out water-absorbing resins and/or artificial synthesized water-absorbing resins for various natural or improvement macromolecule.Parent
Water-based material contains hydrophilic radical, these groups such as :-COOH ,-SO3H ,-OH, etc., these group polarizeds can be with
Water phase is inhaled.
In a preferred embodiment, filter assemblies are additionally provided in heat moisture exchanger 240, for filter particle and/or
Microorganism.As an example, filter assemblies may include PM2.5 filter screen, PM10 filter screen and/or activated carbon filter component.
PM2.5 filter screen, PM10 filter screen and activated carbon filter component can be commercially available.As an example, filtering group
Part may include vinyl acetate resin bonding borosilicate ultra-fine fibre glass, with anti-common bacteria and virus, anthrax bar
Bacterium, pulmonary tuberculosis, the characteristic of HBV virus and HCV virus.As an example, filter assemblies may include polymer nanofiber filtering
Layer, wherein polymer nanofiber filter layer can also include Fungicidal substance (such as silver).Filter assemblies can be set wet in heat
In the shell of exchanger 240.
In another group of embodiment, mask vent be can be set on cavity.As shown in figure 4, being provided on cavity 410
Mask vent 411 is additionally provided with blowing mouth 412 on cavity 410.Although 410 generally cylindrical shape of cavity shown in figure,
But in unshowned other embodiments, cavity 410 can also have other arbitrary shapes, if be capable of forming can with exhale
Inhale the sealing space that mask is ventilated.The volume of cavity 410 is unlimited, is preferred with comfortable wearing.Cavity 410 can be by soft
Property material or rigid material are made.The cavity that the cavity 410 can even be formed with the mask body 21 of breathing mask 20 is at one
Body is integrally formed cavity 410 and mask body 21 for example, by using molding process.As an example, cavity 410 and cavity can be with shapes
The chamber that obviously can be distinguished and be connected to as two.As an example, cavity 410 also can be made a part of cavity, that is,
It says, for embodiment shown in Fig. 4, can use a part of the cavity of breathing mask as cavity 410, by blowing mouth 412
It is formed directly on mask body 21.Preferably, it is provided with connection structure 413 at mask vent 411, the connection structure 413
For ventilation control device 400 to be detachably connectable to breathing mask 20.Connection structure 413 for example can be to snap connection knot
Structure, screw connection structure or elastomer hold connection structure etc. tightly.In this way, ventilation control device 400 can be replaced at any time, and can
To be designed to the ventilation control device 400 to may be directly applied to existing CPAP breathing mask, to reduce the use of patient
Cost.In addition, heat moisture exchanger 440 can be detachably connectable to valve module 420 or cavity 410 at blowing mouth 412, so that
Heat moisture exchanger 440 is connected to blowing mouth 412.As an example, cavity 410 may include by heat moisture exchanger 440 removably
It is connected to the interface of cavity 410.As an example, may include such interface on valve module 420.The structure of interface can use
Tapered shaft hole is fixed, is threadedly coupled, grafting, elastomer are held connection tightly or snapped connection etc., as long as can make hot and humid area
Device 440 is connected to blowing mouth 412.Heat moisture exchanger 440 and cavity 410 can also be fabricated to one with valve module 420
What body can not be split.
For the valve module that intake valve and exhaust valve are combined, heat moisture exchanger 440 can be by being connected to cavity
410 or be connected to valve module 420 and be arranged at blowing mouth 412, as shown in Figure 4.Due to heat moisture exchanger 440 and blowing mouth
412 connections, the moisture in gas and heat being discharged through blowing mouth 412 when heat moisture exchanger 440 by being retained.It exhales
When gas, gas first passes around heat moisture exchanger 440, and the moisture and heat humidifying and Wen Huahou being retained pass through blowing mouth
412 enter cavity 410, eventually arrive at breathing mask 20.Similar to shown in Fig. 2A -2B, heat moisture exchanger 440 also be can be set
Between cavity 420 and breathing mask 20.
In another embodiment, as shown in figure 5, heat moisture exchanger 540 can be arranged in cavity 510.The wet friendship of heat
Parallel operation 540 can be removably disposed in cavity 510, can also be fabricated to one piece with cavity 510.Mask vent
511 are arranged on cavity 510.Preferably, valve module 520 is connected to the blowing mouth 512 of cavity 510 using dismountable mode.
In this way, regularly cavity 510 can be dismantled in the embodiment that cavity 510 can be detachably connectable to breathing mask 20
Get off, integrally to clean or replace the heat moisture exchanger 540 of cavity 510 and the inside.Referring back to Fig. 2A -2B and Fig. 3,
The embodiment being provided separately for air inlet and exhaust outlet, it is preferable that by heat moisture exchanger setting cavity and breathing mask it
Between, and heat moisture exchanger is made to be detachably connectable to cavity and breathing mask；Or in the cavity by heat moisture exchanger setting,
And cavity is made to be detachably connectable to breathing mask and valve module.Regularly heat moisture exchanger can be disassembled clearly in this way
It washes or replaces.
It is described in detail below in conjunction with multiple embodiments of the attached drawing to valve module and cavity.It is appreciated that following
Cavity and valve module can be combined with above-mentioned any heat moisture exchanger.
In one set of embodiments, referring to fig. 4, valve module 420 is arranged at blowing mouth 412, to control the gas of blowing mouth 412
Body circulation.The valve module 420 has inlet channel and exhaust passage.Inlet channel and exhaust passage pass through blowing mouth 412 with
Cavity 410 is connected to.Valve module 420 is configured to the pressure P in cavity 4101Less than or equal to atmospheric pressure P0When lead inlet channel
It is logical；And the pressure P in cavity 4101With atmospheric pressure P0Exhaust passage is connected when being greater than or equal to predetermined value in Zhi Cha ⊿ P.Also
It is to say, pressure P of the inlet channel only in cavity 4101Less than or equal to atmospheric pressure P0When just be connected, once in cavity 410
Pressure P1Greater than atmospheric pressure P0It immediately turns off.Similarly, exhaust passage is only greater than or waits in cavity 410 and atmospheric pressure Zhi Cha ⊿ P
It is just connected when predetermined value, once cavity 410 and atmospheric pressure Zhi Cha ⊿ P are immediately turned off less than predetermined value.When the patient inhales, chamber
Air pressure P in body 4101It reduces, subatmospheric P0, inlet channel conducting, exhaust passage ends at this time, the air-breathing of corresponding patient
Phase.As the patient exhales, the air pressure P in cavity 4101Increase, is higher than atmospheric pressure P0.As the air pressure P in cavity 4101Increase to
Atmospheric pressure P0When Zhi Cha ⊿ P is higher than a certain predetermined value, exhaust passage conducting, inlet channel is turned off at this time, the expiration of corresponding patient
Phase.
In one embodiment, valve module 420 includes the first valve system 422 and the second valve system 423.As shown in figure 4, the
One valve system 422 is arranged at blowing mouth 412.First valve system 422 has the first closed position for closing blowing mouth 412 and beats
Open the first open position of blowing mouth 412.Through-hole 422B is provided on the first valve system 422.The setting of second valve system 423 exists
At through-hole 422B.Second valve system 223, which has the second closed position for closing through-hole 422B and opens the second of through-hole 422B, to be opened
Open position.By the mutual cooperation of two valve systems, the charge air flow and expiratory airflow that can use patient automatically control it
Opening and closing, and then realize air-breathing non-resistance or slight drag and exhaled positive pressure.
In one embodiment, on the one hand, the first valve system 422 and the second valve system 423 can cooperate, original
It is moved between position and ventilation position.Home position refers to not since respiration is to the first valve system 422 and the second valve machine
The state of the application external force of structure 423.The first valve system 422 and the second valve system 423 are in respective closed position at this time.First
When valve system 422 and the second valve system 423 are in the home position, blowing mouth 412 is closed.Pressure P in cavity 4101With it is big
Air pressure P0When Zhi Cha ⊿ P is greater than or equal to the predetermined value, the second valve system 423 follows the first valve system 422 to move together, mobile
It (moves right) to ventilation position.The first valve system 422 is in the first open position at this time, and the second valve system 423 is in the
Two closed positions.Blowing mouth 412 is opened, and exhaust passage is formed.In this embodiment, the second valve system 423 can be set
On one valve system 222.In this way, pressure P when exhaling, in cavity 4101Constantly increase.As the pressure P in cavity 4101With atmosphere
Press P0When Zhi Cha ⊿ P is less than predetermined value, the first valve system 422 and the second valve system 423 are in home position, blowing mouth always
412 close.Once the pressure P in cavity 4101With atmospheric pressure P0Zhi Cha ⊿ P is greater than or equal to the predetermined value, the second valve system 423
It follows the first valve system 422 to be moved to ventilation position, to form exhaust passage, and positive pressure can also be kept in cavity 410.
On the other hand, it is logical can to form air inlet in patient breaths for the opening and closing movement of the second valve system 423 itself
Road.Specifically, pressure P when air-breathing, in cavity 4101Constantly reduce.First valve system 422, which is in, closes the of blowing mouth 412
One closed position.As the pressure P in cavity 4101Less than or equal to atmospheric pressure P0When, the second valve system 423 opens through-hole 422B,
To form inlet channel.Pressure P when air-breathing switchs to exhale, in cavity 4101Increase, as pressure P1Greater than atmospheric pressure P0, second
Valve system 423 may turn off through-hole 422B and repeat the above process.Pressure P when due to air-breathing in cavity 4101With atmospheric pressure P0
Above-mentioned predetermined value is not achieved in Zhi Cha ⊿ P, therefore the first valve system 422 is maintained at home position.First valve system 422 and the second valve
There are many embodiment, the present invention some preferred embodiments to be described in conjunction with attached drawing for mechanism 423.Heat moisture exchanger
440 are connected to valve module 420, and are connected to blowing mouth.As described above, heat moisture exchanger 440 also can be set in cavity 410
Interior or setting is between cavity 410 and breathing mask 20.
Valve module 420 can also include valve seat 421.Valve seat 421 is connected at blowing mouth 412.Heat moisture exchanger 440 can be with
It is connected to the valve seat 421 of valve module 420.First valve system 422 and the second valve system 423 can be arranged in valve seat 421.Valve
Gas outlet 421A is provided on seat 421.Heat moisture exchanger 440 is connected to by gas outlet 421A with blowing mouth 412.Gas outlet
421A can be set in the distal end of valve seat 421, also can be set on the side wall of valve seat 421.It is as described herein proximally and distally
It is for the patient for wearing the breathing mask, one end of close patient is known as proximal end, otherwise is known as distal end.
In the embodiment shown in fig. 4, the first valve system 422 may include the first spool 422A and the first biasing member
422C.First spool 422A can be moved between the first closed position and the first open position.Through-hole 422B setting is the
On one spool 422A.Second valve system 423 is arranged on the first spool 422A at through-hole 422B.When expiration in cavity 410
Pressure P1Increase, when increasing to P0When+⊿ P, so that closing the first spool 422A and the second valve system 423 of blowing mouth 412 originally
It moves right together, blowing mouth 412 is opened, and blowing mouth 412 is connected to gas outlet 421A, forms exhaust passage.Ya Li Cha ⊿ P can
To be provided by the first biasing member 422C.First biasing member 422C is supported on the first spool 422A, to give the first spool
422A is provided from the first closed position to the moving resistance of the first open position.Original first biasing member 422C shown in the figure
Beginning position just applies moving resistance to the first spool 422A, to form exhaled positive pressure.Second valve system 423 can be check valve.
Second valve system 423 may include the flap made of elastic material or formative memory material.As an example, flap is from close to chamber
The side of body 410 is connected to the first valve system 422.It is understood that the first valve system 422 can also be using being similar to and the
The one-way valve structures of two valve systems 423.Specifically, the first valve system 422 may include by elastic material or formative memory material
Manufactured flap, the flap are connected to cavity 410 in the side away from cavity 410.Similarly, the second valve system 423 can also be with
Using the construction similar with above-mentioned first valve system 422, that is, includes spool and biasing member, reference will also be given to Fig. 7 hereinafter to having
Second valve system of this structure is described in detail.
In a preferred embodiment, valve module can also include regulating mechanism, for adjusting above-mentioned predetermined value.As showing
Example, as shown in figure 4, valve seat 421 may include fixing piece 421B and displaceable member 421C.Displaceable member 421C is movably coupled to
To fixing piece 421B, and the position of displaceable member 421C is positioned by location structure relative to fixing piece 421B.Location structure can
To be the screw thread being mutually matched being arranged on fixing piece 421B and displaceable member 421C.In unshowned other embodiments,
Location structure can buckle, fixed pin etc..One end of first biasing member 422C can connect or against to the first spool
422A, and the other end can connect or against to displaceable member 421C.In this way by adjusting displaceable member 421C relative to fixation
The position of part 421B, it will be able to adjust the bias force of the first biasing member 422C, and then adjust predetermined value.Furthermore it is also possible to will
Displaceable member 421C is removed, and provides the first biasing member 422C of different bias forces by replacement to adjust predetermined value.In addition, needing
It is noted that when there are in the case where displaceable member 421C, gas outlet 421A be can be set on displaceable member 421C.Heat is wet
Exchanger 440 is connected to gas outlet 421A.
Similarly, above-mentioned regulating mechanism can also increase to Fig. 2A -2B, embodiment shown in fig. 5 and following possible
In embodiment.Its principle is roughly the same with Fig. 4, is not detailed herein.In unshowned other embodiments, it can also adopt
Adjust the predetermined value in other ways.
It is further preferred that being provided with indicating member (not shown) on ventilation control device, it is used to indicate pre- after adjusting
Definite value.The indicating member can be machine identifier, such as scale, color identifier etc..As an example, machine identifier can be set
On delivery valve seat 331.The adjusting of exhaust valve cap 350 can expose different scale or color to different positions, after being adjusted with instruction
First predetermined value.
In another embodiment, as shown in fig. 6, valve module 620 may include the first valve system 621 and the second valve system
622.First valve system 621 is arranged at the blowing mouth 612 of cavity 610, and the first valve system 621 has closing blowing mouth 612
The first closed position and open blowing mouth 612 the first open position.Through-hole 623 is provided on first valve system 621.Second
Valve system 622 is arranged at through-hole 623.Second valve system 622 has the second closed position for closing through-hole 623 and opens through-hole
623 the second open position.On the one hand, the first valve system 621 and the second valve system 622 cooperate, and in home position and lead to
It is moved between gas position.When first valve system 621 and the second valve system 622 are in the home position, blowing mouth 612 is closed.
As the pressure P in cavity 6101Less than or equal to atmospheric pressure P0When, the first valve system 621 and the second valve system 622 move together to
Ventilation position, blowing mouth 612 are opened, and inlet channel is formed.Second valve system 622 can be set on the first valve system 621.?
In embodiment shown in fig. 6, as the pressure P in cavity 6101Less than or equal to atmospheric pressure P0When, the first valve system 621 and second
Valve system 622 is moved to the left, and generates gap between the first valve system 621 and blowing mouth 612, and blowing mouth 612 is opened, with formed into
Gas channel, the inspiratory phase of corresponding patient.On the other hand, the opening and closing of the second valve system 622 itself can also be exhaled in patient
Exhaust passage is formed when gas.As the pressure P in cavity 6101Greater than atmospheric pressure P0, the first valve system 621, which is in, closes blowing mouth
612 the first closed position.As an example, the first valve system 621 can be set in the inside of cavity 610.In this way, working as cavity
Pressure P in 6101Greater than atmospheric pressure P0, the edge wall of blowing mouth 611 can limit the first valve system 621 and move right, and make
One valve system 621 is maintained at home position.First valve system 621 can also pass through pressure P of the other component in cavity 6101
Greater than atmospheric pressure P0When limit it and be in the first closed position.Pressure after patient switchs to expiratory phase by inspiratory phase, in cavity 610
Power P1It is gradually increased, due to the pressure P in cavity 6101Greater than atmospheric pressure P0, therefore the first valve system 621 is maintained at its first pass
Closed position.And as the pressure P in cavity 6101It increases to and atmospheric pressure P0When Zhi Cha ⊿ P is greater than or equal to the predetermined value, the second valve
Through-hole 623 is opened by mechanism 622, to form exhaust passage.As the pressure P in cavity 6101With atmospheric pressure P0It is pre- that Zhi Cha ⊿ P is less than this
When definite value, the second valve system 622 is then in the state for closing through-hole 623.Heat moisture exchanger can connect in cavity 610 and breathing
Between mask, cavity 610 can also be connected at blowing mouth 612, such as be connected on the wall extension 613 of cavity 610.
In another embodiment, referring to Fig. 7 A, valve module 720 includes valve seat 721, the first valve system 722 and the second valve machine
Structure 723.Through-hole 722B is provided on first valve system 722.First valve system 722 and the second valve system 723 are respectively respective
Between open position and closed position movably.First valve system 722 is mainly disposed in valve seat 721, and the second valve system
723 are mainly disposed in cavity.First valve system 722 and the second valve system 723 are controlled by biasing member.First valve machine
Structure 722 may include the first spool 722A and the first biasing member 722C.Through-hole 722B is arranged on the first spool 722A.First
Biasing member 722C is supported on the first spool 722A, is opened with providing to the first spool 722A from the first closed position to first
The moving resistance of position.Second valve system 723 may include the second spool 723A and the second biasing member 723B.Second spool
723A has the second closed position of the through-hole 722B closed on the first spool 722A and opens the second open position of through-hole 722B
It sets.Second biasing member 723B is supported on the second spool 723A to provide to the second spool 723A from the second closed position to the
The moving resistance of two open positions.One towards cavity 710 in the second spool 723A can be set in second biasing member 723B
Side, and pressure is applied to it when the second spool 723A is open to it position mobile (i.e. to the left) from its closed position.Do not showing
In other embodiments out, the second biasing member be can be set in the side away from cavity 710 of the second spool, and in the second valve
Core 723A applies pulling force to it when being open to it position mobile (i.e. to the left) from its closed position.First biasing member 722C and
Two biasing member 723B can be for spring or other elastomers etc., can also be by formative memory material, for example have formative memory
Alloy or plastics of performance etc..In this embodiment, when expiration, the second spool 723A and the first spool 722A move right together
It is dynamic, i.e., it is mobile towards their ventilation position.The inner and outer air pressure Cha ⊿ P of generation of exhaling at this time will overcome the first biasing member 722C
With the resultant force of the second biasing member 723B moving resistance generated.Since the second biasing member 723B bias force generated is only used for
Realize the pressure P in cavity 7101It is equal to or to be less than atmospheric pressure P0It is switched on, therefore the second of the second biasing member 723B generation
Bias force is arranged smaller, and the second bias force is less than the first bias force that the first biasing member 722C is generated.Heat moisture exchanger can
To be connected between cavity 710 and breathing mask, it can also be connected to cavity 710 at blowing mouth 712 or be connected to valve module
720。
In the above-described embodiments, the sealing between the first valve system 722 and the second valve system 723 and blowing mouth 712 can be with
It is realized by one of both, or by their common realizations.For example, can be in the first valve system 722 and the second valve system 723
At least one on be arranged sealing ring or gasket etc..It as shown in Figure 7 A, can be in the first spool 722A of the first valve system 722
Upper setting sealing element.As shown in Figure 7 B, sealing element 723C can be set on the second spool 723A of the second valve system 723.Separately
Outside, sealing element all can also be set on the first spool 722A and the second spool 723A.It on the basis of the above embodiments, can be with
Finite place piece (not shown), such as block, protrusion etc. are set on valve seat 721.Locating part is for limiting the first spool 722A only
It is moved between home position and ventilation position, the strenuous vibration to avoid the first spool 722A when patient expiration leads to noise mistake
Greatly.
Further, it is also possible to increase regulating mechanism in valve module, for adjusting the draught head for opening exhaust passage, that is, adjust
Save above-mentioned predetermined value.Similar to embodiment shown in Fig. 4, valve seat 721 may include fixing piece 721B and displaceable member 721C, ginseng
See Fig. 7 A.One end of first biasing member 722C connects or against the first spool 722A and other end connection or against displaceable member
721C.Displaceable member 721C may be movably attached to fixing piece 721B, to adjust the first bias force of the first biasing member 722C.
In addition, the regulating mechanism further includes location structure, it is used to position the position of displaceable member 721C relative to fixing piece 721B.Or
Person can provide different bias forces by replacing the first different biasing member 722C, and then adjust above-mentioned predetermined value.
In another embodiment, referring back to Fig. 3, valve module 320 can cooperatively form air inlet and exhaust with blowing mouth
Mouthful.Valve module 320 is configured to the pressure P in cavity 3101Less than or equal to atmospheric pressure P0When patient breaths (namely), make
Air inlet is connected to mask vent, and the pressure P in cavity 3101Greater than atmospheric pressure P0When patient expiration (namely),
It is connected to exhaust outlet with mask vent.In the fig. 3 embodiment, blowing mouth include spaced first blowing mouth 312A and
Second blowing mouth 312B.Valve module 320 is provided only at the first blowing mouth 312A, for controlling the gas of the first blowing mouth 312A
Circulation.As the pressure P in cavity 3101Less than or equal to atmospheric pressure P0When, valve module 320 can be enabled to open.First blowing mouth
312A and the second blowing mouth 312B forms air inlet.Gas enters cavity from the first blowing mouth 312A and the second blowing mouth 312B
In 310.As the pressure P in cavity 3101Greater than atmospheric pressure P0When, valve module 320 can be enabled to close.Second blowing mouth 312B is formed
Only cavity 310 is discharged from the second blowing mouth 312B in exhaust outlet, gas.Controlling air inlet and exhaust outlet in this way has different cross
Sectional area.The cross-sectional area S of air inlet1Greater than the cross-sectional area S of exhaust outlet2.The cross-sectional area S of exhaust outlet2When being set as exhaling
Keep the pressure P in cavity 3101Greater than atmospheric pressure P0, such as the opening area of the second blowing mouth 312B can be arranged compared with
It is small, so that the rate of discharge of gas is less than the expiration rate of patient.When air-breathing, the second blowing mouth 312B can also play additional-air inlet
Effect.In this embodiment, heat moisture exchanger is preferably coupled between cavity 310 and breathing mask.
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.
Ventilation control device provided by the invention realizes the positive-pressure function of expiratory phase, avoids patient caused by continuous positive pressure
It is uncomfortable；Without connecting barotropic gas feedway (such as CPAP ventilator) and pipeline etc. when use, to facilitate patient mobile；
Without carrying barotropic gas feedway when outgoing, patient can wear at any time the breathing mask with the ventilation control device into
Row treatment.The ventilation control device also adds heat moisture exchanger, using the intracorporal moisture of expiratory air and heat to sucking gas
Heating humidifying is carried out, moisture and heat is made to be recycled, avoids mucociliary in temperatureization and humidifying deficiency bring respiratory tract
Movement system is slack-off, secretion is assembled, secretion becomes viscous, the danger of bacteria planting, improves lung compliance and patient comfort.
In addition, such heat moisture exchanger compact structure, using easy, cost is relatively low, therefore can be made expendable consumed product,
The danger and the trouble of cleaning and sterilizing of bacterium are not bred；Also danger not electrically and thermally can avoid humidifying to a certain extent
Insufficient or humidifying is excessive.
The present invention has been explained by the above embodiments, but it is to be understood that, above-described embodiment is only intended to
The purpose of citing and explanation, is not intended to limit the invention to the scope of the described embodiments.Furthermore those skilled in the art
It is understood that the present invention is not limited to the above embodiments, introduction according to the present invention can also be made more kinds of member
Variants and modifications, all fall within the scope of the claimed invention for these variants and modifications.Protection scope of the present invention by
The appended claims and its equivalent scope are defined.
Claims (11)
1. a kind of ventilation control device for breathing mask characterized by comprising
Cavity, with blowing mouth；
Valve module is arranged at the blowing mouth, and the valve module is configured to keep the intracorporal pressure of the chamber big when exhaling
In atmospheric pressure, the valve module includes the first valve system and the second valve system, and first valve system, which has, closes the gas transmission
Mouthful the first closed position and open the first open position of the blowing mouth, be provided with through-hole on first valve system, institute
The setting of the second valve system is stated in the through hole, that there is the second closed position for closing the through-hole and open the through-hole
Two open positions；And
The mask ventilation being connected with the blowing mouth is provided on heat moisture exchanger, the heat moisture exchanger or the cavity
Mouthful, for be connected to breathing mask, the heat moisture exchanger is connected to the mask vent with the blowing mouth so that expiration with
Air-breathing is all via the heat moisture exchanger；
Wherein, the heat moisture exchanger includes:
Shell；
Hydrophobic membrane is filled in the shell, and the hydrophobic membrane is in rugosity in the shell；
Water suction and hydrophilic layer, are attached to the surface of the hydrophobic membrane；And
The intracorporal filter assemblies of the shell are set to, for filtering particle and/or microorganism.
2. ventilation control device as described in claim 1, which is characterized in that wherein
The mask vent is arranged on the heat moisture exchanger, and the cavity further includes interface, and the heat moisture exchanger
It is detachably connectable to the cavity in the interface, so that the heat moisture exchanger and the interface are ventilated；Or
The mask vent is arranged on the cavity, and the heat moisture exchanger is detachably connectable at the blowing mouth
The valve module or the cavity, so that the heat moisture exchanger is connected to the blowing mouth；Or
The mask vent is arranged on the cavity, and the heat moisture exchanger is arranged in the cavity, the valve module
It is detachably connectable to the blowing mouth of the cavity.
3. ventilation control device as described in claim 1, which is characterized in that the valve module has inlet channel and exhaust logical
Road, the inlet channel and the exhaust passage are connected to by the blowing mouth with the cavity, wherein the valve module constructs
Be connected the inlet channel when being less than atmospheric pressure for pressure in the cavity；And pressure and atmosphere in the cavity
The difference of pressure is connected the exhaust passage when being greater than predetermined value.
4. ventilation control device as described in claim 1, which is characterized in that first valve system includes:
First spool, the through-hole are arranged on first spool；
First biasing member, contact on first spool with to first spool provide from first closed position to
The moving resistance of first open position.
5. ventilation control device as described in claim 1, which is characterized in that the valve module includes being connected to the blowing mouth
The valve seat at place, gas outlet is provided on the valve seat, and first valve system is arranged in the valve seat.
6. ventilation control device as described in claim 1, which is characterized in that second valve system includes by elasticity or form
Flap made of memory material, the flap are connected to first valve system.
7. ventilation control device as described in claim 1, which is characterized in that the blowing mouth includes air inlet and exhaust outlet,
The valve module includes:
Intake valve is arranged at the air inlet, and the intake valve is configured to be less than atmospheric pressure when the intracorporal pressure of the chamber
Shi Kaiqi；And
Exhaust valve is arranged in the exhaust ports, the exhaust valve be configured to when the intracorporal pressure of the chamber and atmospheric pressure it
Difference is opened when being greater than predetermined value.
8. the ventilation control device as described in claim 3 or 7, which is characterized in that the valve module includes regulating mechanism, described
Regulating mechanism is for adjusting the predetermined value.
9. ventilation control device as described in claim 1, which is characterized in that the valve module is cooperatively formed with the blowing mouth
Air inlet and exhaust outlet；The valve module makes the air inlet and institute when being configured to pressure in the cavity less than atmospheric pressure
State mask vent connection, and pressure in the cavity be greater than atmospheric pressure when make the exhaust outlet and the mask vent
Connection, wherein the cross-sectional area of the air inlet is greater than the cross-sectional area of the exhaust outlet, and the exhaust outlet can exhale
When keep the intracorporal pressure of the chamber be greater than atmospheric pressure.
10. ventilation control device as claimed in claim 9, which is characterized in that the blowing mouth includes spaced first
Blowing mouth and the second blowing mouth, the valve module are arranged at first blowing mouth；The intracorporal pressure of chamber is less than atmosphere
First blowing mouth is opened when pressure, first blowing mouth and second blowing mouth form the air inlet；The cavity
Interior pressure closes first blowing mouth when being greater than atmospheric pressure, second blowing mouth is the exhaust outlet.
11. a kind of breathing mask equipment characterized by comprising
Breathing mask；And
Such as ventilation control device of any of claims 1-10, the ventilation control device is connected to the respiratory surface
Cover, and ventilated by the mask vent and the breathing mask.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510696722.XA CN105169541B (en) | 2015-10-23 | 2015-10-23 | Ventilation control device and breathing mask equipment with the ventilation control device |
| PCT/CN2015/100041 WO2017067081A1 (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 |
|---|---|---|---|
| CN201510696722.XA CN105169541B (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 |
|---|---|
| CN105169541A CN105169541A (en) | 2015-12-23 |
| CN105169541B true CN105169541B (en) | 2018-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510696722.XA Active CN105169541B (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 (1) | CN105169541B (en) |
| WO (1) | WO2017067081A1 (en) |
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| CN102049080A (en) * | 2009-11-10 | 2011-05-11 | 崇仁(厦门)医疗器械有限公司 | Breathing mask |
| CN201988011U (en) * | 2011-01-26 | 2011-09-28 | 中国人民解放军第三军医大学第二附属医院 | Special breathing mask for pressure-charged type breathing system |
| SE1250965A1 (en) * | 2012-08-30 | 2014-03-01 | Oxyreb Ab | Valve assembly and a re-breathing system comprising said valve assembly |
| CN103405843B (en) * | 2013-08-02 | 2015-06-17 | 山东大学 | Ventilation hood with positive airway pressure adjustable with changes of postures |
| CN203886042U (en) * | 2013-12-31 | 2014-10-22 | 王家松 | Breathing filter |
| CN204017070U (en) * | 2014-08-27 | 2014-12-17 | 王兴旗 | A kind of device for the treatment of sleep apnea syndrome |
| CN204293649U (en) * | 2014-12-16 | 2015-04-29 | 浙江润强医疗器械股份有限公司 | Wet heat exchanger |
| CN205127060U (en) * | 2015-10-23 | 2016-04-06 | 北京怡和嘉业医疗科技有限公司 | Ventilation control device and respirator equipment that has this ventilation control device |
| CN105169541B (en) * | 2015-10-23 | 2018-12-14 | 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 |
-
2015
- 2015-10-23 CN CN201510696722.XA patent/CN105169541B/en active Active
- 2015-12-31 WO PCT/CN2015/100041 patent/WO2017067081A1/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2779878C1 (en) * | 2021-12-22 | 2022-09-14 | Владимир Викторович Михайлов | Therapeutic and preventive respiratory device (options) |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017067081A1 (en) | 2017-04-27 |
| CN105169541A (en) | 2015-12-23 |
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Address after: 100041, five main floor, 19 West Street, Shijingshan District, Beijing. Applicant after: Beijing Ka Yip Yee medical Polytron Technologies Inc Address before: 100041, five main floor, 19 West Street, Shijingshan District, Beijing. Applicant before: Beijing delightful harmony Jia Ye medical science and technology company limited |
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