CN205127059U - Ventilation control device and respirator equipment that has this ventilation control device - Google Patents
Ventilation control device and respirator equipment that has this ventilation control device Download PDFInfo
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- CN205127059U CN205127059U CN201520827969.6U CN201520827969U CN205127059U CN 205127059 U CN205127059 U CN 205127059U CN 201520827969 U CN201520827969 U CN 201520827969U CN 205127059 U CN205127059 U CN 205127059U
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Abstract
The utility model provides a ventilation control device and respirator equipment that has this ventilation control device. Ventilation control device includes cavity and valve module. The cavity has the gas transmission mouth and the face guard blow vent of mutual intercommunication, and the face guard blow vent is used for feeding through with the respirator. The valve module has through inlet channel and the exhaust passage of gas transmission mouth with the cavity intercommunication. The valve module structure makes inlet channel switch on when being less than or equal to the atmospheric pressure for the pressure in the cavity, and the pressure in the cavity makes the exhaust passage switch on when being more than or equal to the predetermined value with the difference of atmospheric pressure. This ventilation control device has realized expiratory phase's malleation function, and the patient who avoids continuous positive airway pressure to arouse is uncomfortable, need not to connect positive -pressure gas feeding device (for example CPAP breathing machine) and pipeline etc. During the use to make things convenient for the patient to remove, need not to carry positive -pressure gas feeding device while being out, the patient can wear the respirator treatment that has this ventilation control device at any time. In addition, this ventilation control device small in size conveniently carries, and the cost is lower.
Description
Technical field
This utility model relates to breathing mask technical field, relates to a kind of ventilation control device for breathing mask particularly and has the breathing mask equipment of this ventilation control device.
Background technology
The method of current treatment obstructive sleep apnea low-ventilatory syndrome (OSAHS) mainly contains surgical operation, appliance and continuous positive pressure venti lation (CPAP).
The most frequently used mode of surgical operation is Uvulopalatopharyngoplasty and improvement operation thereof, blocks (comprise pharyngeal mucosa tissue plumpness, pharyngeal cavity is narrow and small, uvula is loose, soft palate is too low, hypertrophy of tonsils) and apnea test (AHI) <20 time/hour for epithelium healing pars oralis pharyngis.This method is owing to having an operation, and patient acceptance is low, and surgical tissue again length can cause Relapse rate, and cannot again to perform the operation afterwards.
Oral cavity orthopetical device is usually used in simple snoring and slight OSAHS patient's (AHI<15 time/hour), particularly mandibular retrusion person, and its curative effect cannot be estimated, can only try out.
Continuous positive pressure venti lation technology is that breathing mask 110 is connected to CPAP respirator 130 by connecting line 120, and this breathing mask 110 is worn the face to patient.CPAP respirator 130 produces the malleation air-flow continued, thus provides physiological stress to support to the epithelium healing of patient, and then treatment OSAHS.The shortcoming of continuous positive pressure venti lation is: continuous positive pressure can cause patient uncomfortable, and some patients can not accept; Connecting line is movable with respirator restriction patient at night, and compliance is low; CPAP respirator is inconvenient to carry and cost is higher.Breathing mask when some different for disordered breathing treatment, the treatment etc. of such as Obstructive Sleep Apnea; Or in other cases for providing stable sucked air-flow.
Therefore, need a kind of ventilation control device for breathing mask and there is the breathing mask equipment of this ventilation control device, to solve problem mentioned above at least in part.
Utility model content
In order to solve problems of the prior art at least in part, this utility model provides a kind of ventilation control device and has the breathing mask equipment of this ventilation control device.
Comprise according to the ventilation control device that an aspect of the present utility model provides: cavity, it has the blowing mouth and mask vent that are interconnected, and described mask vent is used for being communicated with breathing mask; And valve module, there is inlet channel and exhaust passage, described inlet channel is communicated with described cavity by described blowing mouth with described exhaust passage, wherein, the described valve module pressure be configured in described cavity makes described inlet channel conducting when being less than or equal to atmospheric pressure, makes the conducting of described exhaust passage when the pressure in described cavity and the difference of atmospheric pressure are more than or equal to predetermined value.
Preferably, described valve module comprises governor motion, and described adjusting device is for regulating described predetermined value.
Preferably, described valve module is provided with indicating member, is used to indicate the predetermined value after adjustment.
Preferably, described valve module comprises: the first valve system, has the first closed position closing described blowing mouth and first enable possition of opening described blowing mouth, described first valve system is provided with through hole; And second valve system, it is arranged on described through hole, has the second closed position closing described through hole and second enable possition of opening described through hole.
Preferably, described first valve system comprises: the first spool, and described through hole is arranged on described first spool; First biasing member, contact on described first spool provide moving resistance from described first closed position to described first enable possition to described first spool.
Preferably, described valve module comprises the valve seat being connected to described blowing mouth place, and described valve seat is provided with gas outlet, and described first valve system is arranged in described valve seat.
Preferably, described valve seat is provided with locating part, described locating part moves between described first closed position and described first enable possition for limiting described first spool.
Preferably, described valve module comprises governor motion, for regulating described predetermined value, described governor motion comprises: valve gap, one end of described first biasing member connects or against described first valve system and the other end connects or against described valve gap, described valve gap is connected to described valve seat movably, to regulate the moving resistance of described first biasing member; And location structure, it is for locating the position of described valve gap relative to described valve seat.
Preferably, described second valve system comprises: the second spool, and it can open or close described through hole; Second biasing member, contact on described second spool provide moving resistance from described second closed position to described second enable possition to described second spool.
Preferably, described valve module comprises valve gap, and described valve gap is connected to described first valve system in the outside of described cavity; Described second valve system comprises: the second spool, and its outside at described cavity can open or close described through hole; And second biasing member, it is arranged between described second spool and described valve gap, provides moving resistance from described second closed position to described second enable possition to give described second spool.
Preferably, one end of described second biasing member connects or against described second spool and the other end connects or against described valve gap, described valve gap is connected to described first valve system movably, to regulate the moving resistance of described second biasing member, described valve module also comprises location structure, and it is for locating the position of described valve gap relative to described first valve system.
Preferably, described valve module comprises valve gap, described valve gap is connected to described first valve system, described second valve system is check valve, described second valve system is supported between described first valve system and described valve gap, being made up of elastomeric material or formative memory material at least partially of described second valve system.
Preferably, described second valve system comprises the flap be made up of elasticity or formative memory material, and described flap is connected to described first valve system.
Preferably, described predetermined value is greater than 0 and is less than or equal to 30hPa, preferably between 5-20hPa.
Comprise according to the breathing mask equipment that an aspect of the present utility model provides: breathing mask; And any one ventilation control device as above, described ventilation control device is connected to described breathing mask, and is ventilated by described mask vent and described breathing mask.
Preferably, described breathing mask comprises mask body and is connected to the spacer assembly on described mask body, described spacer assembly is used for the facial contact with patient, described mask body and described spacer assembly form the cavity for being communicated with the mouth and/or nose of patient jointly, wherein, the described cavity of described ventilation control device is a part for described cavity, and described intake valve and the described air bleeding valve of described ventilation control device are arranged on described mask body.
During patient expiration, the pressure in breathing mask can higher than atmospheric pressure.The feature that this utility model utilizes expiration air pressure to change, provide a kind of ventilation control device with cavity and the valve module can ventilated with breathing mask, this valve module is opened higher than making its exhaust passage during atmospheric pressure at this cavity internal pressure, and then achieve the positive-pressure function of expiratory phase, avoid continuing the patient that (exhaling and air-breathing) malleation causes uncomfortable; This ventilation control device utilizes the frame for movement of self to provide PEP, therefore in use without the need to connecting barotropic gas feedway (such as CPAP respirator) and pipeline etc., thus facilitates patient to move; Without the need to carrying barotropic gas feedway when going out, patient can wear the breathing mask with this ventilation control device at any time and treat.In addition, this ventilation control device compact, be convenient for carrying, cost is lower.
In utility model content, introduce the concept of a series of reduced form, this will further describe in detailed description of the invention part.This utility model content part does not also mean that the key feature and essential features that will attempt to limit technical scheme required for protection, does not more mean that the protection domain attempting to determine technical scheme required for protection.
Below in conjunction with accompanying drawing, describe advantage of the present utility model and feature in detail.
Accompanying drawing explanation
Following accompanying drawing of the present utility model in this as a part of the present utility model for understanding this utility model.Shown in the drawings of embodiment of the present utility model and description thereof, be used for explaining principle of the present utility model.In the accompanying drawings,
Fig. 1 is the schematic diagram of existing continuous positive pressure venti lation system;
Fig. 2 A is the axonometric chart of the breathing mask of the ventilation control device had according to this utility model embodiment;
Fig. 2 B is the full sectional view of ventilation control device in Fig. 2 A and breathing mask;
Fig. 3 A is the sectional view of the breathing mask of the ventilation control device had according to this utility model first embodiment;
Fig. 3 B is the sectional view of the breathing mask of the ventilation control device had according to this utility model second embodiment;
Fig. 4 is the sectional view of the breathing mask of the ventilation control device had according to this utility model the 3rd embodiment;
Fig. 5 is the sectional view of the breathing mask of the ventilation control device had according to this utility model the 4th embodiment;
Fig. 6 is the sectional view of the breathing mask of the ventilation control device had according to this utility model the 5th embodiment;
Fig. 7 is the sectional view of the breathing mask of the ventilation control device had according to this utility model the 6th embodiment; And
Fig. 8 is the sectional view of the breathing mask of the ventilation control device had according to this utility model the 7th embodiment.
110, breathing mask; 120, connecting line; 130, CPAP respirator; 20, breathing mask; 21, mask body; 22, spacer assembly; 23, support section; 24, forehead support; 210, cavity; 211, blowing mouth; 212, mask vent; 213, syndeton; 220, valve module; 221,421, valve seat; 222, the first valve system; 223, the second valve system; 224, gas outlet; 222A, the first spool; 222B, through hole; 222C, the first biasing member; 223A, flap; 323, the second valve system; 323A, the second spool; 323B, the second biasing member; 323C, sealing member; 424, gas outlet; 425, valve gap; 425A, valve gap gas outlet; 521, valve seat; 525, valve gap; 610, cavity; 611, blowing mouth; 620, valve module; 621, the first valve system; 621A, the first spool; 621B, the first biasing member; 622, the second valve system; 622A, the second spool; 622B, the second biasing member; 623, through hole; 624, valve gap; 721, the first valve system; 724, valve gap; 822, the second valve system; 822A, flap.
Detailed description of the invention
In the following description, a large amount of details is provided this utility model can be understood up hill and dale.But those skilled in the art can understand, following description only schematically illustrates preferred embodiment of the present utility model, and this utility model can be implemented without the need to one or more such details.In addition, in order to avoid obscuring with this utility model, technical characteristics more well known in the art are not described in detail.
According to an aspect of the present utility model, provide a kind of ventilation control device for breathing mask (hereinafter referred to as ventilation control device).In order to accurately, intactly this ventilation control device can be understood, will first the breathing mask of this ventilation control device of employing simply be described herein.Be understandable that, oronasal mask type breathing mask shown in accompanying drawing is only exemplary, ventilation control device provided herein is not limited to only be applied to this oronasal mask type breathing mask, and it can also be applied to the breathing mask of nose cup type, the full form such as face cover type or nose plug type.
As shown in the axonometric chart of Fig. 2 A and the sectional view of Fig. 2 B, breathing mask 20 comprises mask body 21, spacer assembly 22 and forehead support 24.In other embodiment unshowned, breathing mask 20 may not comprise one of them or two parts, such as, do not comprise forehead support 24.
Mask body 21 is provided with face shield through hole (not indicating).Spacer assembly 22 is arranged on mask body 21.Mask body 21 and spacer assembly 22 form cavity jointly.Spacer assembly 22 can be permanently connected or be detachably connected to mask body 21.In use, mask body 21 contacts with face's (comprising cheek, the bridge of the nose, face top and the bottom etc.) of patient with spacer assembly 22, forms sealing, is communicated with the nasal cavity or mouth and nose chamber that make this cavity and patient.Mask body 21 can be made up of rigid material, or also can be made up of flexible material.Spacer assembly 22 is preferably made up of flexible material.Spacer assembly 22 can be air bag, also can be membrane structure.Membrane structure can be the bilayer of monolayer or separation.Spacer assembly 22 also can comprise adhesive (such as adhesive sticker etc.), to promote patients' feeling and sealing effectiveness.Mask body 21 and spacer assembly 22 be not limited to the general triangular shown in figure from the shape viewed from front, can also be pyriform, trapezoidal etc.Mask body 21 and spacer assembly 22 can also adopt shape suitable with snout shape etc.In nose plug type breathing mask, spacer assembly 22 also can be designed to the nasal obstruction with the cone-shaped membrane shape of nose orifice sealing, and this structure can have the double membrane structure of monolayer or separation equally.In mouth and nose type breathing mask, nasal obstruction can also be designed with oral area cover type and combine.Spacer assembly 22 comprises support section 23.Support section 23 can be designed to the structures such as gauffer, corrugated tube, local reduction, bending, arc, better fit with face to realize this breathing mask 20, even realize suspending between the cushioned portions of spacer assembly 22 and mask body 21, thus can the laminating angle of self adaptation liner and face, and utilize intracavity gas pressure assisted seal.As an example, support section 23 adopts air bag or gel, can have the function of self adaptation shape of face.
In addition, this breathing mask 20 also comprises the fixture for being connected and fixed assembly, such as buckle, bandage ring etc.Fixture can be connected on mask body 21 as independent part, also can be integrally formed with mask body 21.Fixation kit is used for appropriate location breathing mask 20 being fixed on patient facial region, can be existing various headband.Headband can have the structure be connected with mask body 21, such as detain, bandage with VELCRO.The material of headband can adopt fabric, elastomer etc. (its elastomer can be foam, silica gel etc.), also can adopt the multiple structure of fabric and elastomer composite, to improve its elasticity, breathability and human body compliance.The shape of headband can make Y-shaped, the various form such as I-shaped, can add the part of some direction relative stiffness and some direction flexibility in addition, better to fix this breathing mask 20 simultaneously.Fixation kit also can be the structure being directly fixed on the outside or nasal cavity of face, nose, can be such as the fixed structure of adhesive (such as adhesive sticker etc.).
Forehead support 24 is resisted against on the forehead of patient in use.Connection between forehead support 24 and mask body 21 can be fixed or disassembled, and the embodiment of sectional type is such as pass through button bit.Forehead support 24 comprises soft forehead contact site.This forehead support 24 can also have adjusting device, to adjust and forehead distance, ensures 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, textile etc., and the definition of this material is also applicable to subsequent sections content.
The all parts that breathing mask 20 comprises can adopt structure known in the art, therefore no longer describes in further detail here.
Be described in detail below in conjunction with multiple preferred embodiments of accompanying drawing to the ventilation control device that this utility model provides.See Fig. 2 A-2B, ventilation control device 200 comprises cavity 210 and valve module 220.
Cavity 210 has blowing mouth 211 and mask vent 212.Blowing mouth 211 and mask vent 212 are interconnected.Mask vent 212 is for being communicated with breathing mask 20.Mask vent 212 is such as connected to the face shield through hole of breathing mask 20.Although the cavity 210 shown in figure is cylindrical substantially, in other embodiments unshowned, cavity 210 can also have other arbitrary shapes, can carry out the seal cavity of ventilating as long as can be formed with breathing mask 20.The volume of cavity 210 is not limit, and is good with comfortable wearing.Cavity 210 can be made up of flexible material or rigid material.This cavity 210 can unremovably be connected to breathing mask 20, is unremovably connected to breathing mask 20 to make ventilation control device 200.The cavity that this cavity 210 even can be formed with mask body 21 and spacer assembly 22 is integral, such as, adopt molding process to make cavity 210 and mask body 21 one-body molded.Under cavity 210 with mask body 21 all-in-one-piece situation, cavity 210 and cavity can be formed as two and can obviously distinguish and the chamber be communicated with.In addition, cavity 210 also can make a part for cavity, that is, for the embodiment shown in Fig. 2 A-2B, a part for the cavity of breathing mask can be utilized as cavity 210, be formed directly on mask body 21 by blowing mouth 211.Like this, valve module 220 can be set directly on mask body 21.In the embodiment that cavity 210 and mask body 21 split are arranged, syndeton 213 can be set at mask vent 212 place of cavity 210.This syndeton 213 is for being removably connected to breathing mask 20 by ventilation control device 200.Syndeton 213 such as can hold syndeton etc. tightly for buckle connecting structure, screw connection structure or elastomer.Like this, ventilation control device 200 can be changed at any time, and this ventilation control device 200 can be designed to can directly apply to existing CPAP breathing mask, to reduce the use cost of patient.
Blowing mouth 211, for the gas exchange between breathing mask 20 and air, comprises the air-breathing of patient and the expiration of patient, has all been come by this blowing mouth 211.Valve module 220 has inlet channel and exhaust passage.Valve module 220 can be arranged on blowing mouth 211 place.The inlet channel of valve module 220 is all communicated with cavity 210 by blowing mouth 211 with exhaust passage.Non-resistance or slight drag when valve module 220 can realize air-breathing, and in cavity 210, form malleation when exhaling.Related pathologies achievement in research shows, OSAHS patient's air flue when air-breathing does not block, and only has obstruction when exhaling.This utility model adopts PEP to prevent upper respiratory tract from subsiding, and then plays therapeutical effect to OSAHS.
Valve module 220 is configured to make the pressure P of inlet channel in cavity 210
1be less than or equal to atmospheric pressure P
0time conducting; The pressure P of exhaust passage in cavity 210
1with atmospheric pressure P
0conducting when Zhi Cha ⊿ P is more than or equal to predetermined value.That is, the pressure P of inlet channel only in cavity 210
1be less than or equal to atmospheric pressure P
0time just conducting, once the pressure P in cavity 210
1be greater than atmospheric pressure P
0in time, turns off immediately.Similarly, the pressure P of exhaust passage only in cavity 210
1with atmospheric pressure P
0just conducting when Zhi Cha ⊿ P is more than or equal to predetermined value, once the pressure P in cavity 210
1with atmospheric pressure P
0zhi Cha ⊿ turns off when P is less than predetermined value immediately.The air intake passage of the corresponding patient of inlet channel, when the patient inhales, the air pressure P in cavity 210
1reduce, lower than atmospheric pressure P
0, inlet channel conducting, now exhaust passage turns off, the inspiratory phase of corresponding patient.The exhalation passages of the corresponding patient in exhaust passage, as the patient exhales, the air pressure P in cavity 210
1increase, higher than atmospheric pressure P
0.As the air pressure P in cavity 210
1increase to and atmospheric pressure P
0when Zhi Cha ⊿ P is higher than a certain predetermined value, exhaust passage conducting, now inlet channel turns off, the expiratory phase of corresponding patient.This predetermined value is relevant with treatment OSAHS.This predetermined value can be greater than 0 and be less than or equal to 30hPa, preferably between 5-20hPa.Therapeutic effect in preferable range is best.
Preferably, blowing mouth 211 and mask vent 212 are oppositely arranged, and the gas that patient is breathed out is discharged by blowing mouth 211 directly, remain to avoid the carbon dioxide in breathing mask 20 and cavity 210.
Valve module 220 can comprise the first valve system 222 and the second valve system 223.As shown in Figure 2 B, the first valve system 222 is arranged on blowing mouth 211 place.First valve system 222 has the first closed position closing blowing mouth 211 and first enable possition of opening blowing mouth 211.Second valve system 223 is arranged on through hole 222B place.Second valve system 223 has the second closed position closing through hole 222B and second enable possition of opening through hole 222B.By cooperatively interacting of two valve systems, the charge air flow of patient and expiratory airflow can be utilized automatically to control their opening and closing, and then realize air-breathing non-resistance or slight drag and PEP.
In one embodiment, on the one hand, the first valve system 222 and the second valve system 223 can cooperate mutually, removable between home position and ventilation position.Home position refers to not because Repiration to apply the state of external force to the first valve system 222 and the second valve system 223.Now the first valve system 222 and the second valve system 223 are all in respective closed position.When first valve system 222 and the second valve system 223 are in this home position, blowing mouth 211 is closed.Pressure P in cavity 210
1with atmospheric pressure P
0when Zhi Cha ⊿ P is more than or equal to this predetermined value, the second valve system 223 is followed the first valve system 222 and is moved together, moves to ventilation position.Now the first valve system 222 is in the first enable possition, and the second valve system 223 is in the second closed position.Blowing mouth 211 is opened, and forms exhaust passage.In this embodiment, the second valve system 223 can be arranged on the first valve system 222.Like this, when exhaling, the pressure P in cavity 210
1continuous increase.Pressure P in cavity 210
1with atmospheric pressure P
0when Zhi Cha ⊿ P is less than predetermined value, the first valve system 222 and the second valve system 223 are in home position all the time, and blowing mouth 211 is in closed condition.Once the pressure P in cavity 210
1with atmospheric pressure P
0zhi Cha ⊿ P is more than or equal to this predetermined value, and the second valve system 223 is followed the first valve system 222 and moved to ventilation position, to form exhaust passage, and can keep malleation in cavity 210.
On the other hand, the opening and closing action of the second valve system 223 self can form inlet channel when patient breaths.Particularly, during air-breathing, the pressure P in cavity 210
1continuous reduction.First valve system 222 is in the first closed position closing blowing mouth 211.Pressure P in cavity 210
1be less than or equal to atmospheric pressure P
0time, the second valve system 223 is in second enable possition of opening through hole 222B, to form inlet channel.Once the pressure P in cavity 210
1be greater than atmospheric pressure P
0, the second valve system 223 will close through hole 222B.Due to the pressure P in cavity during air-breathing 210
1with atmospheric pressure P
0zhi Cha ⊿ P does not reach above-mentioned predetermined value, and therefore the first valve system 222 remains on its first closed position.First valve system 222 and the second valve system 223 have numerous embodiments, hereinafter will be described some preferred implementations by reference to the accompanying drawings.
Valve module 220 can also comprise valve seat 221.Valve seat 221 is connected to blowing mouth 211 place.First valve system 222 and the second valve system 223 can all be arranged in valve seat 221.Later by the embodiment of introduction, also can be that the first valve system is arranged on valve seat, the second valve system be arranged in cavity.Valve seat 221 is provided with gas outlet 224.Blowing mouth 211 can directly be communicated with gas outlet 224.Gas outlet 224 can be arranged on the far-end of valve seat 221, also can be arranged on the sidewall of valve seat 221.Near-end as herein described and far-end are for the patient wearing this breathing mask, be called near-end, otherwise be called far-end near one end of patient.Gas outlet 224 can be arranged as shown in Figure 2 A, and other modes also can be adopted to arrange, as long as valve seat 221 can be made to be communicated with air.The set-up mode of gas outlet 224 and quantity are not limited herein.
In a specific embodiment, as shown in Figure 2 B, the first valve system 222 can comprise the first spool 222A.First spool 222A can be removable between the first closed position and the first enable possition.Through hole 222B is arranged on the first spool 222A.Second valve system 223 is arranged on the first spool 222A at through hole 222B place.Pressure P during expiration in cavity 210
1increase, when increasing to P
0during+⊿ P, the first spool 222A originally closing blowing mouth 211 is moved right together with the second valve system 223, and blowing mouth 211 is opened, and blowing mouth 211 is communicated with gas outlet 224, forms exhaust passage.Ya Li Cha ⊿ P can be provided by the first biasing member 222C.First biasing member 222C supports on the first spool 222A, to provide the moving resistance from the first closed position to the first enable possition to the first spool 222A.First biasing member 222C can be arranged on the side away from cavity 210 of the first spool 222A, and just applies pressure to it when the first spool 222A is in home position.Needing to overcome this pressure during expiration makes the first spool 222A move to ventilation position together with the second valve system 223.In this moving process, the first biasing member 222C applied pressure constantly increases.In other embodiments unshowned, the first biasing member can be arranged on the side of the close cavity 210 of the first spool, and just applies pulling force to it when the first spool is in home position.Needing to overcome this pulling force during expiration makes the first spool 222A move to ventilation position together with the second valve system 223.In this moving process, the pulling force that the first biasing member 222C applies constantly increases.First biasing member 222C can be spring or other elastomers etc., can also be made up of formative memory material, and formative memory material is such as the alloy or plastics etc. with formative memory performance.
Second valve system 223 can enter into the check valve in cavity 210 from through hole 222B for permission gas.Second valve system 223 comprises the flap 223A be made up of elastomeric material or formative memory material, as shown in Figure 2 B.Flap 223A can be connected directly to the first valve system 222, such as, be connected directly between on the first spool 222A.Flap 223A also can be connected to the first valve system 222 by intermediate member (not shown).Exemplarily, the second valve system 223 can be connected to the first valve system 222 from the side near cavity 210, such as, be connected to the first spool 222A.Like this, the first spool 222A can limit flap 223A and only opens along airintake direction.During air-breathing, the pressure P in cavity 210
1reduce, the second valve system 223 deflects to the inner side of cavity 210, and through hole 222B is opened, and forms inlet channel.Sealing between second valve system 223 and through hole 222B can adopt the design of various ways.Second valve system 223 comprises line with being sealed and matched between through hole 222B and plane coordinates, plane and plane coordinates, line and the face of cylinder coordinates, the face of cylinder and the face of cylinder coordinates, line and mating spherical surfaces, sphere and mating spherical surfaces, line and taper seat coordinate, taper seat and taper seat to coordinate etc. shape.The material be sealed and matched between intake valve 220 and air inlet 211 can be rigidity, flexibility or their combination.The shape at the above-mentioned position that is sealed and matched and material also may be used on following needs in all parts of sealing.
First valve system also can adopt similar structure, namely comprises the flap be made up of elastomeric material or formative memory material.This flap can be connected to cavity 210 directly or indirectly.Exemplarily, the first valve system can be connected to cavity 210 at blowing mouth 211 place from the side deviating from cavity 210.During expiration, the pressure P 1 in cavity 210 increases, when this pressure P
1increase to and atmospheric pressure P
0when Zhi Cha ⊿ P is greater than predetermined value, the first valve system deflects to the outside of cavity 210 together with the second valve system, and blowing mouth 211 is opened, and forms exhaust passage.
In addition, the second valve system can also adopt the structure being similar to the first valve system shown in Fig. 2 B, and as shown in Figure 3A, the second valve system 323 can comprise the second spool 323A and the second biasing member 323B.Second valve system 323 can be arranged in cavity 210.Second spool 323A can be removable between the second closed position and the second enable possition.Miscellaneous part included by this embodiment or structure can be same or similar with the embodiment shown in Fig. 2 B, will adopt identical Reference numeral for same or analogous parts.Second spool 323A can open or close the through hole 222B on the first spool 222A.Second biasing member 323B supports on the second spool 323A to provide the moving resistance from the second closed position to the second enable possition to the second spool 323A.Second biasing member 323B can be arranged on the side towards cavity 210 of the second spool 323A, and applies pressure when the second spool 323A moves (namely left) from its second closed position to its second enable possition to it.If slight drag when needing to provide air-breathing, when the second spool 323A is in the second closed position, the second biasing member 323B also can apply less moving resistance to it.In other embodiments unshowned, second biasing member can be arranged on the side deviating from cavity 210 of the second spool 323A, and applies pulling force when the second spool 323A moves (namely left) from its second closed position to its second enable possition to it.Second biasing member can be spring or other elastomers etc., by formative memory material, can also such as have the alloy or plastics etc. of formative memory performance.In this embodiment, during expiration, the second spool 323A moves right together with the first spool 222A, and the ventilation position namely towards them moves.The inner and outer air pressure Cha ⊿ P produced that now exhales will overcome making a concerted effort of the moving resistance of the first biasing member 222C and the second biasing member 323B generation.Because the moving resistance of the second biasing member 323B generation is only for realizing the pressure P in cavity 210
1be equal to or less than atmospheric pressure P
0just open, it is less that the moving resistance that therefore the second biasing member 323B produces is arranged, and is less than the moving resistance that the first biasing member 222C produces.During air-breathing, it is motionless that the first spool 222A remains on original position, the pressure P of the second spool 323A in cavity 210
1be equal to or less than atmospheric pressure P
0in time, is moved to the left, and enters in cavity 210, thus opens through hole 222B.First valve system 222 and the sealing between the second valve system 323 and blowing mouth 211 can by both one of realize, or jointly to be realized by them.Such as, at least one in the first valve system and the second valve system can arrange sealing ring or sealing gasket etc.As shown in Figure 3A, sealing member can be set on the first spool 222A.As shown in Figure 3 B, sealing member 323C can be set on the second spool 323A.In addition, on the first spool 222A and the second spool 323A, all sealing member can also be set.
On the upper basis addressing embodiment hereafter, locating part (not shown) can be provided with on valve seat 221, such as block, projection etc.Locating part only moves for limiting the first spool 222A between the first enable possition and the first closed position, and during to avoid patient expiration, the strenuous vibration of the first spool 222A causes noise excessive.
In addition, governor motion can also being increased in valve module, for regulating the draught head making exhaust passage conducting, namely regulating above-mentioned predetermined value.Embodiment shown in Figure 4, the embodiment shown in this embodiment with Fig. 2 A-2B is substantially identical, and difference is, adds governor motion, and this governor motion comprises valve gap 425.One end of first biasing member 222C connects or against the first spool 222A and the other end connects or against valve gap 425.Valve gap 425 is connected to valve seat 421 movably, to regulate the moving resistance of the first biasing member 222C.Valve seat 421 is different from the valve seat 221 shown in Fig. 2 B, and valve seat 421 can be connected with valve gap 425, and allows the first biasing member 222C connect through valve seat 421 or be resisted against on valve gap 425.Valve gap 425 can be arranged valve gap gas outlet 425A, be communicated with air by this valve gap gas outlet 425A to make the gas outlet 424 of valve seat 421.In addition, also can valve seat gas outlet 424 be arranged directly be communicated with air, such as, be arranged on the sidewall of valve seat 421.Or, also valve seat 421 can be connected with valve gap 425 with being set to non-tight, pass through to allow gas.During expiration, gas enters atmospheric environment from chamber 210 through blowing mouth 211 and the gap between valve seat 421 and valve gap 425.In addition, this governor motion also comprises location structure, and it is for locating the position of valve gap 425 relative to valve seat 421.In the embodiment shown in fig. 4, location structure can be the screw thread of the mutual coupling be arranged on valve seat 421 and valve gap 425.In other embodiments unshowned, location structure can be buckle, steady pin etc.It should be noted that, this governor motion can be increased to above and in any one hereafter mentioned embodiment, correspondingly, by carrying out the pressure adjusting function that similar modification as described above can realize predetermined value to valve seat.
Further preferably, valve module is provided with indicating member (not shown), is used to indicate the predetermined value after adjustment.This indicating member can be machine identifier, such as scale, colour code etc.Exemplarily, machine identifier can be arranged on valve seat 421.Valve gap 425 is adjusted to different positions can expose different scales or color, to indicate the first predetermined value after adjustment.
Similarly, also can increase governor motion on the basis of the embodiment shown in Fig. 3 A-3B, as shown in Figure 5, one end of the first biasing member 222C connects or against the first spool 222A and the other end connects or against valve gap 525.Valve gap 525 is connected to valve seat 521 movably, to regulate the moving resistance of the first biasing member 222C.This governor motion is similar to the governor motion shown in Fig. 4, the description of this governor motion is applicable to the description of appropriate section above, is no longer described in further detail here.Be understandable that, this governor motion can be assembled to and be suitable for installing in any embodiment of this governor motion.
In another embodiment, as shown in Figure 6, valve module 620 can comprise the first valve system 621 and the second valve system 622.First valve system 621 is arranged on blowing mouth 611 place of cavity 610.First valve system 621 has the first closed position closing blowing mouth 611 and first enable possition of opening blowing mouth 611.First valve system 621 is provided with through hole 623.Second valve system 622 is arranged on through hole 623 place.Second valve system 622 has the second closed position closing through hole 623 and second enable possition of opening through hole 623.On the one hand, the first valve system 621 and the second valve system 622 cooperate mutually, removable between home position and ventilation position.When first valve system 621 and the second valve system 622 are in this home position, blowing mouth 611 is closed.Pressure P in cavity 610
1be less than or equal to atmospheric pressure P
0time, the first valve system 621 moves to ventilation position together with the second valve system 622, and blowing mouth 611 is opened, and forms inlet channel.Second valve system 622 can be arranged on the first valve system 621.In the embodiment shown in fig. 6, when the pressure P in cavity 610
1be less than or equal to atmospheric pressure P
0time, the first valve system 621 drives the second valve system 622 to be moved to the left together, and produce gap between the first valve system 621 and blowing mouth 611, blowing mouth 611 is opened, to form inlet channel, and the inspiratory phase of corresponding patient.On the other hand, the opening and closing of the second valve system 622 self can also form exhaust passage when patient expiration.Pressure P in cavity 610
1be greater than atmospheric pressure P
0, the first valve system 621 is in the first closed position closing blowing mouth 611.Exemplarily, the first valve system 621 can be arranged on the inside of cavity 610.Like this, when the pressure P in cavity 610
1be greater than atmospheric pressure P
0time, the edge wall of blowing mouth 611 can limit the first valve system 621 and move right, and makes the first valve system 621 remain on its first closed position.First valve system 621 also can by the pressure P of miscellaneous part in cavity 610
1be greater than atmospheric pressure P
0limit its be in the first closed position.After patient transfers expiratory phase to by inspiratory phase, the pressure P in cavity 610
1increase gradually, due to the pressure P in cavity 610
1be greater than atmospheric pressure P
0, therefore the first valve system 621 remains on its first closed position.And when the pressure P in cavity 610
1increase to and atmospheric pressure P
0when Zhi Cha ⊿ P is more than or equal to this predetermined value, the second valve system 622 opens through hole 623, to form exhaust passage.Pressure P in cavity 610
1with atmospheric pressure P
0when Zhi Cha ⊿ P is less than this predetermined value, the second valve system 622 is in the second closed position closing through hole 623.
In the embodiment shown in fig. 6, the first valve system 621 can comprise the first spool 621A and the first biasing member 621B.First spool 621A has the first enable possition and the first closed position.Through hole 623 is arranged on the first spool 621A.First biasing member 621B supports on the first spool 621A, to provide the moving resistance from the first closed position to the first enable possition to the first spool 621A.If slight drag when needing to provide air-breathing, the first biasing member 621B just can apply less moving resistance to it when the first spool 621A is in the first closed position.First spool 621A moves from the first closed position to the first enable possition and the second valve system 622 can be driven to move together, and this process namely the first valve system 621 and the second valve system 622 moves to the process of ventilation position from home position.First biasing member 621B can be arranged on the side towards cavity 610 of the first spool 621A, and applies pressure when the first spool 621A moves (namely left) from the first closed position to the first enable possition to it.In other embodiments unshowned, the first biasing member can be arranged on the side deviating from cavity 610 of the first spool, and applies pulling force when the first spool 621A moves (namely left) from the first closed position to the first enable possition to it.Correspondingly, if slight drag when expecting to realize air-breathing, the first biasing member 621B just can apply pressure or pulling force to it when the first spool 621A is in the first closed position.First biasing member 621B can be spring or other elastomers etc., by formative memory material, can also such as have the alloy or plastics etc. of formative memory performance.Preferably, the first biasing member 621B is arranged in cavity 610, and a part of the first spool 621A is arranged in cavity 610, for closing blowing mouth 611.The size of valve module can be reduced like this.
In one embodiment, valve module 620 can also comprise valve gap 624.Valve gap 624 is connected to the first valve system 621 in the outside of cavity 610.Valve gap 624 can be fixedly connected to the first valve system 621 (comprising valve gap 624 and the first valve system 621 all-in-one-piece situation), or removably or is movably connected to the first valve system 621.Dismountable connected mode is such as that buckle (as shown in Figure 6) or elastomer such as to hold tightly at the mode.Moveable connected mode be such as be threaded, the mode such as buckle connection.Second valve system 622 can comprise the second spool 622A and the second biasing member 622B.Second spool 622A can open and close through hole 623 in the outside of cavity 610.Second biasing member 622B can be arranged between the second spool 622A and valve gap 624.Second biasing member 622B provides the moving resistance from the second closed position to the second enable possition to the second spool 622A.The two ends of the second biasing member 622B connect or respectively against to the second spool 622A and valve gap 624.Pressure P in cavity 610
1increase to and atmospheric pressure P
0when Zhi Cha ⊿ P is more than or equal to predetermined value, the moving resistance that the second spool 622A overcomes the second biasing member 622B opens through hole 623, to form exhaust passage.Through hole 623 can be communicated with air by the gas outlet (being such as arranged on the sidewall of the first spool 621A) be arranged on the first spool 621A; Or through hole 623 also can be communicated with air with the gas outlet on valve gap 624 by being arranged on the first spool 621A, as illustrated in fig. 6; Or without sealing between the first spool 621A and valve gap 624, form exhaust passage.
Removably or be movably connected in the embodiment of the first valve system 621 at valve gap 624, further preferably, as shown in Figure 7, valve module 620 can have the function regulating and make the draught head of exhaust passage conducting, namely regulates the function of above-mentioned predetermined value.Embodiment shown in Fig. 7 is substantially identical with the embodiment shown in Fig. 6, and difference is, adds regulatory function.With Fig. 6 similarly, one end of the second biasing member 622B connects or against the second spool 622A and the other end connects or against valve gap 724.Valve gap 724 is connected to the first valve system 721 movably, to regulate the moving resistance of the second biasing member 622B.In addition, this governor motion also comprises location structure, and it is for locating the position of valve gap 724 relative to the first valve system 721.In the embodiment shown in fig. 4, location structure can be the screw thread of the mutual coupling be arranged on the first valve system 721 and valve gap 724.In other embodiments unshowned, location structure can be buckle, steady pin etc.
In addition, be removably connected at valve gap 624 in the embodiment of the first valve system 621, different bigoted power can be provided by changing the second different biasing member 622B, and then regulate above-mentioned predetermined value.
In another embodiment, as shown in Figure 8, the embodiment shown in this embodiment with Fig. 6 is substantially identical, and difference is, the second valve system 822 can comprise the flap 822A be made up of elastomeric material or formative memory material.Flap 822A can be connected to the first valve system 621 directly or indirectly.Exemplarily, flap 822A can be connected to the first valve system 621 from the side away from cavity 610.Pressure P in cavity 610
1with atmospheric pressure P
0when Zhi Cha ⊿ P is more than or equal to predetermined value, the second valve system 822 opens through hole 611, to form exhaust passage.
In addition, on the basis of Fig. 6, can also be out of shape the second valve system 622, and the embodiment shown in miscellaneous part with Fig. 6 is substantially identical.Particularly, this valve module comprises valve gap 624, and valve gap 624 such as regularly, movably or is removably connected to the first valve system 621.Second valve system 622 is arranged between the first valve system 621 and valve gap 624.Difference is, being made up of elastomeric material or formative memory material at least partially of the second valve system 622, and when the second valve system 622 closes through hole 623, the second valve system 622 has the first deformation quantity.When the second valve system 622 opens through hole 623, the second valve system has the second deformation quantity, and wherein the second deformation quantity is greater than the first deformation quantity.The part of the close valve gap 624 of the second valve system 622 can be set to be made up of elastomeric material or formative memory material, when the second valve system 622 moves to the position of opening through hole 623 from the position closing through hole 623, because its distance to valve gap 624 shortens, it is caused to change the second larger deformation quantity into from the first less deformation quantity.This moving process needs to overcome resistance, and this part resistance achieves the malleation of expiratory phase.
This utility model also provides a kind of breathing mask equipment.This breathing mask equipment comprises any one breathing mask mentioned above and any one ventilation control device mentioned above.Ventilation control device is connected to breathing mask, and is ventilated by mask vent and breathing mask.The all parts comprised for them, structure can with reference to the descriptions of appropriate section above.
During patient expiration, the pressure in breathing mask can higher than atmospheric pressure.The feature that this utility model utilizes expiration air pressure to change, provide a kind of ventilation control device with cavity and the valve module can ventilated with breathing mask, this valve module at this cavity internal pressure higher than making its exhaust passage conducting during atmospheric pressure, and then achieve the positive-pressure function of expiratory phase, avoid continuing the patient that (exhaling and air-breathing) malleation causes uncomfortable; This ventilation control device utilizes the frame for movement of self to provide PEP, therefore in use without the need to connecting barotropic gas feedway (such as CPAP respirator) and pipeline etc., thus facilitates patient to move; Without the need to carrying barotropic gas feedway when going out, patient can wear the breathing mask with this ventilation control device at any time and treat.In addition, this ventilation control device compact, be convenient for carrying, cost is lower.
This utility model is illustrated by above-described embodiment, but should be understood that, above-described embodiment just for the object of illustrating and illustrate, and is not intended to this utility model to be limited in described scope of embodiments.In addition it will be understood by those skilled in the art that; this utility model is not limited to above-described embodiment; more kinds of variants and modifications can also be made, within these variants and modifications all drop on this utility model scope required for protection according to instruction of the present utility model.Protection domain of the present utility model defined by the appended claims and equivalent scope thereof.
Claims (17)
1. for a ventilation control device for breathing mask, it is characterized in that, comprising:
Cavity, it has the blowing mouth and mask vent that are interconnected, and described mask vent is used for being communicated with breathing mask; And
Valve module, has inlet channel and exhaust passage, and described inlet channel is communicated with described cavity by described blowing mouth with described exhaust passage,
Wherein, when the described valve module pressure be configured in described cavity is less than or equal to atmospheric pressure, make described inlet channel conducting, when the pressure in described cavity and the difference of atmospheric pressure are more than or equal to predetermined value, make the conducting of described exhaust passage.
2. ventilation control device as claimed in claim 1, it is characterized in that, described valve module comprises governor motion, and described adjusting device is for regulating described predetermined value.
3. ventilation control device as claimed in claim 2, is characterized in that, described valve module is provided with indicating member, be used to indicate the predetermined value after adjustment.
4. ventilation control device as claimed in claim 1, it is characterized in that, described valve module comprises:
First valve system, has the first closed position closing described blowing mouth and first enable possition of opening described blowing mouth, described first valve system is provided with through hole; And
Second valve system, it is arranged on described through hole, has the second closed position closing described through hole and second enable possition of opening described through hole.
5. ventilation control device as claimed in claim 4, it is characterized in that, described first valve system comprises:
First spool, described through hole is arranged on described first spool;
First biasing member, contact on described first spool provide moving resistance from described first closed position to described first enable possition to described first spool.
6. ventilation control device as claimed in claim 5, it is characterized in that, described valve module comprises the valve seat being connected to described blowing mouth place, and described valve seat is provided with gas outlet, and described first valve system is arranged in described valve seat.
7. ventilation control device as claimed in claim 6, it is characterized in that, described valve seat is provided with locating part, described locating part moves between described first closed position and described first enable possition for limiting described first spool.
8. ventilation control device as claimed in claim 6, it is characterized in that, described valve module comprises governor motion, and for regulating described predetermined value, described governor motion comprises:
Valve gap, one end of described first biasing member connects or against described first spool and the other end connects or against described valve gap, described valve gap is connected to described valve seat movably, to regulate the moving resistance of described first biasing member; And
Location structure, it is for locating the position of described valve gap relative to described valve seat.
9. ventilation control device as claimed in claim 4, it is characterized in that, described second valve system comprises:
Second spool, it can open or close described through hole;
Second biasing member, contact on described second spool provide moving resistance from described second closed position to described second enable possition to described second spool.
10. ventilation control device as claimed in claim 4, it is characterized in that, described valve module comprises valve gap, and described valve gap is connected to described first valve system in the outside of described cavity; Described second valve system comprises:
Second spool, its outside at described cavity can open or close described through hole; And
Second biasing member, it is arranged between described second spool and described valve gap, to provide the moving resistance from described second closed position to described second enable possition to described second spool.
11. ventilation control devices as claimed in claim 10, it is characterized in that, one end of described second biasing member connects or against described second spool and the other end connects or against described valve gap, described valve gap is connected to described first valve system movably, to regulate the moving resistance of described second biasing member, described valve module also comprises location structure, and it is for locating the position of described valve gap relative to described first valve system.
12. ventilation control devices as claimed in claim 4, it is characterized in that, described valve module comprises valve gap, described valve gap is connected to described first valve system, described second valve system is check valve, described second valve system is supported between described first valve system and described valve gap, being made up of elastomeric material or formative memory material at least partially of described second valve system.
13. ventilation control devices as claimed in claim 4, it is characterized in that, described second valve system comprises the flap be made up of elasticity or formative memory material, and described flap is connected to described first valve system.
14. ventilation control devices as claimed in claim 1, it is characterized in that, described predetermined value is greater than 0 and is less than or equal to 30hPa.
15. ventilation control devices as claimed in claim 14, it is characterized in that, described predetermined value is between 5-20hPa.
16. 1 kinds of breathing mask equipment, is characterized in that, comprising:
Breathing mask; And
Ventilation control device according to any one of claim 1-15, described ventilation control device is connected to described breathing mask, and is ventilated by described mask vent and described breathing mask.
17. breathing mask equipment as claimed in claim 16, it is characterized in that, described breathing mask comprises mask body and is connected to the spacer assembly on described mask body, described spacer assembly is used for the facial contact with patient, described mask body and described spacer assembly form the cavity for being communicated with the mouth and/or nose of patient jointly
Wherein, the described cavity of described ventilation control device is a part for described cavity, and described intake valve and the described air bleeding valve of described ventilation control device are arranged on described mask body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520827969.6U CN205127059U (en) | 2015-10-23 | 2015-10-23 | Ventilation control device and respirator equipment that has this ventilation control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520827969.6U CN205127059U (en) | 2015-10-23 | 2015-10-23 | Ventilation control device and respirator equipment that has this ventilation control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205127059U true CN205127059U (en) | 2016-04-06 |
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ID=55612885
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520827969.6U Active CN205127059U (en) | 2015-10-23 | 2015-10-23 | Ventilation control device and respirator equipment that has this ventilation control device |
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| Country | Link |
|---|---|
| CN (1) | CN205127059U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105169542A (en) * | 2015-10-23 | 2015-12-23 | 北京怡和嘉业医疗科技有限公司 | Ventilation control device and breathing mask equipment with same |
-
2015
- 2015-10-23 CN CN201520827969.6U patent/CN205127059U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105169542A (en) * | 2015-10-23 | 2015-12-23 | 北京怡和嘉业医疗科技有限公司 | Ventilation control device and breathing mask equipment with same |
| WO2017067086A1 (en) * | 2015-10-23 | 2017-04-27 | 北京怡和嘉业医疗科技有限公司 | Ventilation control apparatus, and breathing mask device provided with ventilation control apparatus |
| CN105169542B (en) * | 2015-10-23 | 2018-08-17 | 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 |
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Address after: 100041, five main floor, 19 West Street, Shijingshan District, Beijing. Patentee after: Beijing Ka Yip Yee medical Polytron Technologies Inc Address before: 100041, five main floor, 19 West Street, Shijingshan District, Beijing. Patentee before: Beijing delightful harmony Jia Ye medical science and technology company limited |
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| CP01 | Change in the name or title of a patent holder |