CN105641793B - For the ventilation control device of breathing mask and breathing mask equipment - Google Patents
For the ventilation control device of breathing mask and breathing mask equipment Download PDFInfo
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- CN105641793B CN105641793B CN201511004467.4A CN201511004467A CN105641793B CN 105641793 B CN105641793 B CN 105641793B CN 201511004467 A CN201511004467 A CN 201511004467A CN 105641793 B CN105641793 B CN 105641793B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/06—Respiratory or anaesthetic masks
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- Life Sciences & Earth Sciences (AREA)
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- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
It is a kind of for the ventilation control device of breathing mask and breathing mask equipment.Ventilation control device includes valve module and regulating mechanism.Valve module includes：Valve seat and valve deck, valve deck are rotationally attached to valve seat and form valve chamber, and valve chamber has current path；Spool, spool is located in valve chamber and the controllable gas flow rate by current path；Elastic component in valve chamber, elastic component are arranged between spool and valve deck, to move offer resistance along predetermined direction to spool.Regulating mechanism includes fastener and multiple gear slots.Multiple gear slots are arranged in the circumferential direction of one of them of valve seat and valve deck, and fastener is arranged on another in valve seat and valve deck.Fastener engages at least one gear slot.Fastener can engage with adjacent gear slot when valve deck is rotated relative to valve seat.The ventilation control device can be fed back in adjustment for the treatment of pressure in a manner of feel and the sound to user, so as to carry out a series of accurate adjustings.
Description
Technical field
The present invention relates to breathing mask technical field, more particularly to a kind of ventilation control device for breathing mask with
And the breathing mask equipment with this ventilation control device.
Background technology
At present, treatment obstructive sleep apnea low-ventilatory syndrome (OSAHS) most important method is suffered to OSAHS
Person wears breathing mask.
The breathing mask of existing treatment OSAHS mainly includes continuous positive pressure ventilation (CPAP) type breathing mask.It is this to exhale
It inhales mask and lasting positive pressure gas flow is generated using lung ventilator, so as to provide physiological stress support to the epithelium healing of patient.But
This breathing mask there are it is apparent the shortcomings that：Continuous positive pressure can cause patient uncomfortable, and some patientss cannot receive；Connecting line with
Lung ventilator limitation patient at night activity, compliance are low；CPAP lung ventilators are inconvenient to carry and cost is higher.
The gas using patient's exhalation of latest developments also be used to treat to form the ventilation control device of exhaled positive pressure
Obstructive sleep apnea low-ventilatory syndrome (OSAHS).The advantages of this ventilation control device, is using ventilation control
The mechanical structure of device itself provides exhaled positive pressure, is used without connecting lung ventilator, and also be able to avoid continuous positive pressure
Caused patient is uncomfortable.In addition, this ventilation control device also is able to that the size of exhaled positive pressure is set and adjusted.But
It is that in existing ventilation control device, pressure setting and adjusting are realized by screw thread.Its problem is, when setting pressure
Or it conveniently cannot accurately be positioned when the pressure of setting is adjusted.
Therefore, it is necessary to a kind of ventilation control device for breathing mask and with the ventilation control device respiratory surface
Shield apparatus, to solve problems as mentioned above at least partly.
Invention content
In order to solve cannot easily and accurately to adjust the treatment pressure of ventilation control device in the prior art at least partly
The problem of, the present invention provides a kind of ventilation control device for breathing mask and the respiratory surface with the ventilation control device
Shield apparatus.
The ventilation control device provided according to an aspect of the present invention, including：
Valve module, including：
Valve seat and valve deck, the valve deck are rotationally attached to the valve seat, and the valve deck forms valve chamber with the valve seat,
The valve chamber have allow gas by current path；
Spool, the spool is located in the valve chamber and the controllable gas flow rate by the current path；And
Elastic component, the elastic component are located in the valve chamber, and the elastic component is arranged on the spool and described
Between valve deck, the spool to be given to move offer resistance along predetermined direction；And
Regulating mechanism, including fastener and multiple gear slots,
Wherein, the multiple gear slot is arranged in the circumferential direction of one of them of the valve seat and the valve deck, institute
State that fastener is arranged in the valve seat and the valve deck another on,
Wherein, the fastener engages, and the valve deck is rotated relative to the valve seat at least one gear slot
When, the fastener can engage with the adjacent gear slot.
Preferably, the fastener includes：Elastic arm, the first end of the elastic arm are connected to the valve seat or the valve
It covers；And protrusion, the protrusion are arranged in the second end opposite with the first end of the elastic arm, the protrusion can
Engage with the gear slot.
Preferably, the fastener includes：Limiting slot, the limiting slot are arranged on the valve seat or the valve deck；It is convex
Go out portion, the protrusion is arranged in the limiting slot, and the protrusion is limited by the notch of the limiting slot, only described
Engage except a part of limiting slot of protrusion with the gear slot；And elastomer, the elastomer are set
It puts between the bottom of the limiting slot and the protrusion, to provide thrust for the protrusion.
Preferably, the valve deck includes：Threaded joints, the valve deck are connected to the valve by the threaded joints
Seat；Support portion, the support portion are connected to the threaded joints, and stretch to the inside of the valve seat, wherein, the engaging
Part be arranged on the valve seat inner peripheral surface and the support portion one of them on, the multiple gear slot is arranged on the valve
On another in the inner peripheral surface and the support portion of seat.
Preferably, the multiple gear slot be arranged in the inner peripheral surface of the valve seat and the fastener be arranged on it is described
When on support portion, the ventilation control device further includes the locking mechanism being locked in the fastener in corresponding gear slot.
Preferably, the locking mechanism includes：Locking piece, the locking piece are located at institute in the radial direction the valve deck
The inside of fastener is stated, the locking piece has locked, wherein, the locking piece is in the locking bit
It is resisted against when putting on the fastener；And the locking piece when being in the unlocked position fastener can follow the valve
The rotation of lid engages with adjacent gear slot；And lever, the lever are connected to the locking piece, to drive the lock
Determine part to move between the latched position and the unlocked position along the axial direction or circumferential direction of the valve deck.
Preferably, the locking piece is the cantilever for being connected to the lever, and fluting, the behaviour are provided on the valve deck
Make the outside that handle is located at the valve deck on the axial direction of the valve deck, the cantilever passes through described along the axial direction
Fluting extends to the inside of the valve deck.
Preferably, reinforcer is additionally provided on the valve deck, the reinforcer is located in the radial direction the valve deck
The inside of the locking piece, and be resisted against on the locking piece.
Preferably, the ventilation control device further includes the locking machine being locked in the fastener in corresponding gear slot
Structure.
Preferably, the locking mechanism includes lock fastener, and the lock fastener is axially or radially across institute
State one of them of valve deck and the valve seat, and be fastened in the valve deck and the valve seat another on.
Preferably, multiple rotation stop grooves, the multiple rotation stop groove are provided in one of them of the valve deck and the valve seat
Corresponding with the multiple gear slot, the lock fastener may pass through another rear fastening in the valve deck and the valve seat
In at least one of the multiple rotation stop groove.
The breathing mask equipment provided according to an aspect of the present invention, including：Breathing mask, the breathing mask tool
There is the cavity connected with the mouth of patient and/or nose；And any ventilation control device as described above, the ventilation control dress
It puts and is connected to the breathing mask, the current path of the ventilation control device is connected to the cavity.
The ventilation control device of the present invention is by the rotatable connection of valve deck and valve seat come the mobile resistance of valve assembly
Power, and then adjust the treatment pressure of breathing mask.By the regulating mechanism that is arranged on valve deck and valve seat (including gear slot and card
Component), in rotary valve cover adjustment for the treatment of pressure, feed back to user in a manner of feel and the sound.It is equivalent to and is set in pressure
During fixed, a series of accurate adjustings are provided and feed back to user, and the pressure change between each gear be it is knowable,
So as to user's accurately adjustment for the treatment of pressure.Meanwhile this regulating mechanism for adjusting and feeding back that is capable of providing also improves ventilation
The user experience of control device, improves use feeling.
A series of concept of reduced forms is introduced in invention content, this will be in specific embodiment part further
It is described in detail.This part of the disclosure be not meant to the key feature for attempting to limit technical solution claimed and
Essential features do not mean that the protection domain for attempting to determine technical solution claimed more.
Below in conjunction with attached drawing, the advantages of the present invention will be described in detail and feature.
Description of the drawings
The drawings below of the present invention is used to understand the present invention in this as the part of the present invention.Shown in the drawings of this hair
Bright embodiment and its description, principle used to explain the present invention.In the accompanying drawings,
Fig. 1 is the stereogram of the breathing mask with ventilation control device according to an embodiment of the invention；
Fig. 2 is the stereogram according to the ventilation control device of first embodiment of the invention；
Fig. 3 is the sectional view of the ventilation control device in Fig. 2；
Fig. 4 is the regulating mechanism of ventilation control device and its stereogram of circumferential component in Fig. 2；
Fig. 5 is according to the regulating mechanism of second embodiment of the invention and its simplified side view of circumferential component；
Fig. 6 is according to the regulating mechanism of ventilation control device of third embodiment of the invention and its solid of circumferential component
Figure；
Fig. 7 a are according to the regulating mechanism of ventilation control device of fourth embodiment of the invention and its section view of circumferential component
Figure；
Fig. 7 b are according to the regulating mechanism of ventilation control device of fifth embodiment of the invention and its section view of circumferential component
Figure；
Fig. 8 a are according to the regulating mechanism of ventilation control device of sixth embodiment of the invention and its section view of circumferential component
Figure；
Fig. 8 b are according to the regulating mechanism of ventilation control device of seventh embodiment of the invention and its section view of circumferential component
Figure；
Fig. 9 is the sectional view of the ventilation control device in Fig. 2, and wherein locking mechanism is in the unlocked state；
Figure 10 is the sectional view according to the ventilation control device of eighth embodiment of the invention；
Figure 11 a are according to the regulating mechanism of ventilation control device of ninth embodiment of the invention and its section view of circumferential component
Figure；
Figure 11 b are according to the regulating mechanism of ventilation control device of tenth embodiment of the invention and its section view of circumferential component
Figure；
Figure 12 is the sectional view according to the ventilation control device of eleventh embodiment of the invention；
Figure 13 is the exploded perspective view according to the ventilation control device of twelveth embodiment of the invention；
Figure 14 is the combination stereogram according to the ventilation control device of thriteenth embodiment of the invention；And
Figure 15 is the exploded perspective view of the ventilation control device in Figure 14.
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, described below exemplarily only to show the preferred embodiment of the present invention, and the present invention may not need one
Or multiple such details and be carried out.In addition, in order to avoid obscuring with the present invention, for more well known in the art
Technical characteristic is not described in detail.
According to an aspect of the present invention, a kind of ventilation control device for breathing mask is provided (hereinafter referred to as to ventilate
Control device).In order to it is accurate, be fully understood by the ventilation control device, herein will be first to using ventilation control dress
The breathing mask put is briefly described.It is understood that the oronasal mask type breathing mask shown in attached drawing is merely illustrative
Property, provided herein is ventilation control device be not limited to be applied to the oronasal mask type breathing mask, be also applicable to nose
The breathing mask of the forms such as cover type, full face cover type or nose plug type.
As shown in the stereogram of Fig. 1, breathing mask 10 includes mask body 11, spacer assembly 12 and forehead support 14.
In other embodiments not shown, breathing mask 10 may not include one of those or two components, such as not include
Forehead support 14.
Mask through-hole (not indicating) is provided on mask body 11.Ventilation control device 100 is connected to the mask through-hole
Place.Spacer assembly 12 is mounted on mask body 11.Cavity is collectively formed in mask body 11 and spacer assembly 12.Spacer assembly 12
It can be permanently connected or be detachably connected to mask body 11.When in use, mask body 11 and spacer assembly 12 will be with
Face (including cheek, the bridge of the nose, the face top and the bottom etc.) contact of patient, forms sealing so that the nasal cavity of the cavity and patient or
Person's mouth and nose chamber connects.Mask body 11 can be made of rigid material or can also be fabricated from a flexible material.Spacer assembly 12
Preferably it is fabricated from a flexible material.Spacer assembly 12 can be air bag or membrane structure.Membrane structure can be individual layer or divide
From bilayer.Spacer assembly 12 may also comprise adhesive (such as adhesive sticker etc.), to promote patients' feeling and sealing effect.Mask
Main body 11 and the shape seen from front of spacer assembly 12 are not limited to general triangular shown in figure, can also be pyriform, ladder
Shape etc..Mask body 11 and spacer assembly 12 can also use shape being adapted with snout shape etc..In nose plug type
In breathing mask, spacer assembly 12 can also be designed to the nasal obstruction with the cone-shaped membrane shape of nose orifice sealing, this structure equally may be used
Double membrane structure with individual layer or separation.In mouth and nose type breathing mask, nasal obstruction and the design of oral area cover type can also mutually be tied
It closes.Spacer assembly 12 includes support section 13.Support section 13 may be designed to gauffer, bellows, local reduction, bending, arc
Etc. structures, be preferably bonded or even realize the cushioned portions and mask of spacer assembly 12 to realize this breathing mask 10 with face
It suspends between main body 11, so as to adaptively pad the angle that is bonded with face, and utilizes intracavity gas pressure assisted seal.As
One example, support section 13 use air bag or gel, can have the function of adaptive shape of face.
In addition, the breathing mask 10 also includes the fixing piece for connecting fixation kit, such as buckle, bandage ring etc..Gu
Determining part can be connected to as independent part on mask body 11, also can be integrally formed with mask body 11.Fixation kit is used for
Breathing mask 10 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 11 connects, such as button, the bandage with velcro.(its such as braided fabric, elastic component may be used in the material of headband
Elastic member can be foam, silica gel etc.), it can also be using the compound multilayered structure of braided fabric and elastic component, to improve
Its elasticity, gas permeability and human body compliance.The shape of headband can make the various forms such as Y-shaped, I-shaped, while can add in certain
The part of a little direction relative stiffnesses and other certain direction flexibilities, more preferably to fix the breathing mask 10.Fixation kit can also
It is the structure being directly fixed in face, nose outside or nasal cavity, for example can is the fixation of adhesive (such as adhesive sticker etc.)
Structure.
Forehead support 14 is resisted against on the forehead of patient when in use.Between forehead support 14 and mask body 11
Connection can be fixed or disassembled, and one embodiment of sectional type is between forehead support 14 and mask body 11
It is connected by button bit.Forehead support 14 includes soft forehead contact site.The forehead support 14 can also have adjustment dress
It puts, with adjustment and forehead distance, ensures to adapt to different sides 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 10 is included can use construction known in the art, therefore here no longer into one
Step detailed description.
Multiple preferred embodiments of ventilation control device provided by the invention are described in detail below in conjunction with attached drawing.
Referring to Fig. 2 for showing ventilation control device according to a first embodiment of the present invention and 3, ventilation control device can include valve group
Part 210 and regulating mechanism 220.
Valve module 210 includes valve seat 211 and valve deck 212.Valve deck 212 is for example rotationally attached to valve seat by screw thread
211.Screw thread can include being arranged on internal thread on one of them of valve seat 211 and valve deck 212 and be arranged on valve seat 211 and valve
External screw thread on another in lid 212.In use, valve seat 211 is typically connected on breathing mask, it is preferred that valve deck
The internal thread on 212 is set, and the external screw thread is set on valve seat 211.In this way, valve deck 212 can be enclosed in valve seat 211
Outside, convenient for users to adjusting valve deck 212.Valve deck 212 is connected to after valve seat 211, and valve chamber 215 is formed in the inside of the two.
By the screw thread, valve deck 212 is rotatable relative to valve seat 211 by axis of central axis P-P, in axial direction (i.e. central shaft
The extending direction of line P-P) adjust valve chamber 215 axial length.It is of course also possible to use other modes are rotatable by valve deck 212
Ground is connected to valve seat 211, as long as can axially adjust the axial length of valve chamber 215 while rotary valve cover 212
.Although 212 generally cylindrical shape of valve seat 211 and valve deck shown in figure, in unshowned other embodiment,
Valve seat 211 and valve deck 212 can also have other arbitrary shapes, as long as can form what can be ventilated with breathing mask 10
Valve chamber 215.The volume of valve chamber 215 is unlimited, is preferred with comfortable wearing.The valve chamber 215 have allow gas by air-flow
Access.Current path includes the first blow vent 231 and the second blow vent 232.First blow vent 231 is used to connect valve chamber 215
To breathing mask 10 (see Fig. 1).Ventilation control device can by the connection structure 233 being arranged at the first blow vent 231
Breathing mask 10 is releasably connected to, is specifically connected to the mask through-hole of breathing mask 10.Connection structure 233 for example may be used
Think that buckle connecting structure, screw connection structure or elastic component hold connection structure etc. tightly.In this way, ventilation control can be replaced at any time
Device processed, and the ventilation control device can be designed to may be directly applied to existing CPAP breathing masks, to reduce
The use cost of patient.Of course, if required, ventilation control device can also unremovably connect at the first blow vent 231
It is connected to breathing mask 10.Second blow vent 232 is used to that valve chamber 215 to be made to be connected to air.During patient breaths, ozone can be with
The mouth and/or nose of patient are admitted to by the second blow vent 232, the first blow vent 231 and breathing mask successively.Conversely, it exhales
When, the gas of exhalation can be flowed out along the direction opposite with above-mentioned path.First blow vent 231 can be arranged on valve seat 211
On.Second blow vent 232 can be arranged on valve seat 211, can also be arranged on valve deck 212.In addition it is also possible in valve seat
211 and valve deck 212 on the second blow vent 232 is all set, to increase breathing area.Referring to Fig. 1, ventilation control device 100 includes
Valve seat 111 and valve deck 112.The second blow vent 132 is both provided on valve seat 111 and valve deck 112.
Valve module 210 further includes spool 213 and elastic component 214.Spool 213 is located in valve chamber 215.Spool 213 is controllable
The gas flow rate that system passes through current path.Gas flow rate is controlled to include the flow direction of control gas and controls gas flow rate
Size.Elastic component 214 is located in valve chamber 215, and elastic component 214 is arranged between spool 213 and valve deck 212.Elastic structure
The both ends of part 214 can distinguish contact on spool 213 and valve deck 212, to move offer resistance along predetermined direction to spool 213
Power.Can also be that one end contact of elastic component 214 is in spool 213 and valve deck 212 on one of them, and elastic component 214
The other end is connected to another in spool 213 and valve deck 212.In order to realize exhaled positive pressure, which corresponds to patient
Expiration direction.When spool 213 is moved along the direction corresponding to patient expiration, elastic component 214 is provided to spool 213 is provided
Resistance, in order to provide exhaled positive pressure.During patient expiration, the resistance that elastic component 214 is overcome to generate is needed to move spool 213,
Thus ensure exhaled positive pressure.Related pathologies achievement in research shows that OSAHS patient's air flue in air-breathing does not block, and is only exhaling
There is obstruction during gas.The present invention prevents the upper respiratory tract from collapsing, and then plays therapeutic effect to OSAHS using exhaled positive pressure.Elasticity
Component 214 can be spring or other any type of elastomers etc., can also be made of formative memory material, formative memory material
Material is, for example, alloy or plastics with formative memory performance etc..
In one embodiment, spool 213 is the nonreturn valve core opened along predetermined direction.That is, spool 213 only exists
It is opened during patient expiration.The air-breathing of patient can be by being additionally provided on expiration mask 10 (see Fig. 1) or the ventilation control device
On inlet valve complete.Inlet valve can be any type of check valve, as long as in cavity (itself and the patient mouthful of breathing mask
And/or nose connection) in pressure be less than or equal to atmospheric pressure when can open.In fact, in this embodiment, valve module
220 are used only as air bleeding valve.Current path possessed by valve chamber 215 is only exhaust passage.
In another embodiment, valve module 220 can either realize degassing function, and can reach air inlet purpose.Such as Fig. 3 institutes
Show, through-hole 216 is provided on spool 213.Valve module 220 further includes the check valve 217 being arranged at through-hole 216.Check valve
217 can open through-hole 216 along direction opposite to the predetermined direction.That is, check valve 217 can along with inspiratory direction
Through-hole 216 is opened in corresponding direction, and thus check valve 217 is properly termed as inlet valve.During patient breaths, check valve 217 is opened.
In this embodiment, check valve 217 can be the flap made of elastic material or formative memory material.But if desired,
Check valve 217 can be any type of check valve, as long as in the cavity (it is connected with patient mouthful and/or nose) of breathing mask
Pressure can open when being less than atmospheric pressure.In this embodiment, pass through check valve 217 and spool 213 and elastic component 214
Cooperation, valve chamber 215 can air-breathing and exhale when be respectively provided with inlet channel and exhaust passage.Inlet channel is along air-flow side
To successively including the second blow vent 232,216 and first blow vent 231 of through-hole.Exhaust passage includes the successively along airflow direction
Gap between valve seat 211 and the second blow vent 232 when one blow vent 231, spool 213 are opened.
It is upper address Examples below on the basis of, locating part (not shown) can be set on valve seat 211, such as be kept off
Block, protrusion etc..Locating part only moves between open and closed positions for limiting spool 213, to avoid patient expiration
When spool 213 strenuous vibration cause noise excessive.
It will be explained below the regulating mechanism provided by the invention that can accurately adjust exhaled positive pressure.Regulating mechanism 220
It can include fastener 221 and multiple gear slots 222.In order to clearly illustrate the work(of all parts that regulating mechanism 220 includes
Can, Fig. 4 and Fig. 5 show fastener 221 and multiple gear slots 222 and the component where them.Referring concurrently to Fig. 3-5, engaging
Part 221 is arranged on valve deck 212, and gear slot 222 is arranged on valve seat 211.
Multiple gear slots 222 are set along the circumferential direction of valve seat 211.Gear slot 222 can be arranged on the whole of valve seat 211
On a circumference, it can also be arranged in a part for circumference, such as on 3/4ths circumference.Valve deck 212 would generally be designed to
Relative to 211 rotatable several weeks of valve seat, to increase regulating power, it is preferred that gear slot 222 is arranged on the whole of valve seat 211
On a circumference, continuously can accurately to adjust exhaled positive pressure during the entire process of the rotation of valve deck 212.Gear slot 222
Quantity can be set as needed.The quantity of gear slot 222 is more, and the spacing between each gear slot 222 is shorter, valve deck
212 adjusting angle is smaller, and pressure change is also smaller, so as to make adjusting pressure more accurate.In view of the size of valve module 220
It is not easy excessive, the quantity of gear slot 222 is generally preferred within the scope of 8-12.The shape of gear slot 222 can be it is various, than
Such as arc-shaped slot (see Fig. 5) or square slot (see Fig. 4).The shape of gear slot 222 is different, fastener 221 when adjusting every time
The hand feeling dynamics fed back when entering adjacent gear slot 222 from the gear slot 222 engaged at present can be different with the sound.Ability
The technical staff in domain can select the shape of gear slot 222 as needed.
Fastener 221 can engage at least one gear slot 222.In the embodiments illustrated in the figures, regulating mechanism 220
There are two fasteners 221 for tool.The two fasteners 221 are symmetrically arranged about center line axis P-P (see Fig. 2-3).Two engagings
Part 221 engages respectively with two gear slots 222.Certainly, in unshowned other embodiment, the quantity of fastener 221 also may be used
Think one or more.In addition, each fastener 221 can also engage with adjacent multiple gear slots 222 simultaneously.Valve deck
212 relative to valve seat 211 when rotating, and fastener 221 can engage with adjacent gear slot 222.It can be adjusted by rotary valve cover 212
The axial dimension of valve chamber 215 is saved, and then adjusts the deformation quantity of elastic component 214, so as to adjust exhaled positive pressure.It will thus exhale
Positive pressure engaging with fastener 221 and different stalls slot 222 links together.But be not to the adjusting of exhaled positive pressure by
Fastener 221 engages what is uniquely determined from different gear slots 222, and the factor for influencing exhaled positive pressure further includes elastic component
214 elasticity (such as stiffness factor of spring) and the screw pitch of screw thread.Therefore, by reasonably selecting elastic component 214 and spiral shell
Line can further accurately control the adjusting of exhaled positive pressure.
In order to be mutually clamped, fastener 221 and gear slot 222 are separately positioned on the opposite of valve deck 212 and valve seat 211
Side on.In the preferred embodiment shown in Fig. 3-4, gear slot 222 is arranged in the inner peripheral surface of valve seat 211.Valve deck 212
It can include threaded joints 212a and support portion 212b.Valve deck 212 is connected through a screw thread portion 212a and is connected to valve seat 211.Branch
Support part 212b is connected to threaded joints 212a.Support portion 212b can be integral with threaded joints 212a, can also connect firmly
It is connected to threaded joints 212a.Support portion 212b stretches to the inside of valve seat 211.From sectional view, the screw thread of valve deck 212 connects
Socket part 212a and support portion 212b is partially sandwiched in centre by the setting of valve seat 211 is threaded.Fastener 221 can be arranged on branch
On the 212b of support part, and it is opposite with gear slot 222.This preferred embodiment so that entire ventilation control device is compacter.And for
Internal thread is set on valve seat 211 and for externally threaded situation (not shown) is set on valve deck 212, the threaded connection of valve deck 212
Portion and support portion can be respectively positioned on the inside of valve seat 211.
But valve deck 212 and valve seat 211 further include other opposite sides, such as the inner peripheral surface and valve of valve deck 212
The peripheral surface of seat 211.As an example, fastener 221 can be arranged in the inner peripheral surface of valve deck 212, and gear slot 222 is set
It puts in the peripheral surface of valve seat 211.
In another embodiment, fastener and gear slot can also be set in turn, i.e., gear slot 622 is arranged on valve deck
On 612, and fastener 621 is arranged on valve seat 611, as shown in Figure 6.The main distinction of embodiment shown in Fig. 6 and Fig. 3-5 is just
It is the position relationship of fastener 621 and gear slot 622.Therefore, for structure same as the previously described embodiments or similar and portion
Part will be described no longer in further detail here.Moreover, unless specifically stated otherwise, the feature being described below is also applied for engaging
The above two position relationship of part and gear slot：1) fastener 221 is arranged on valve deck 212, and gear slot 222 is arranged on valve seat
On 211 (Fig. 3-5)；2) gear slot 222 is arranged on valve deck 212, and fastener 221 is arranged on valve seat 211 (Fig. 6).In Fig. 6
In shown embodiment, valve deck 612 includes threaded joints 612a and support portion 612b.Valve deck 612 is connected through a screw thread portion
612a is connected to valve seat 611.Support portion 612b is connected to threaded joints 612a.Support portion 612b stretches to the interior of valve seat 611
Side.Gear slot 622 can be arranged on support portion 612b, and is engaged with fastener 621.
Referring back to Fig. 3, regulating mechanism can also include indicating member (not shown).Indicating member, which can be arranged on, to be had
On externally threaded component, in the embodiment shown in fig. 3, indicating member can be arranged on valve seat 211.According to by with interior spiral shell
The part that the component (being in figure 3 valve deck 212) of line exposes indicates the pressure value after adjusting.As an example, indicating member can
To be arranged at the screw thread of valve seat 211.The indicating member can be machine identifier, such as scale, colour code etc..Valve deck 212
Different scales or color can be exposed by adjusting different positions, the pressure value after being adjusted with instruction.Have on valve seat 211 interior
Screw thread and on valve deck 212 have externally threaded situation in, indicating member is arranged on valve deck 212.In this way, valve deck 212 relative to
Valve seat 211, which adjusts different positions, can expose indicating member on valve deck 212.
In one group of preferred embodiment, as shown in Figure 3-4, fastener 221 can include elastic arm 221a and protrusion 221b.
In the illustrated embodiment, elastic arm 221a and the support portion 212b of valve deck 212 are integral, it is understood that for both parts
Function can be concentrated on one component.Below by the other embodiment of introduction, elastic arm 221a and support portion 212b divide
It Ju You not respective purposes.As shown in Figure 3-4, the first end of elastic arm 221a is connected to valve deck 212, that is, is connected to valve deck
212 support portion 212b.Raised 221b is arranged in the second end opposite with first end of elastic arm 221a.Raised 221b can be with
Gear slot 222 engages.Elastic arm 221a can be by having the material of certain elasticity, such as plastics etc. are made.Elastic arm 221a
Its elasticity can be realized by being fabricated to sheet material, selectable material includes plastics, metal etc. in the case of this.Elastic arm 221a
With valve deck 212 rotate carry out pressure setting during, by gear slot 222 convex position when can be deformed, by gear
It restores to the original state again during the recess of slot 222, discharges deformation power, and user is fed back in a manner of feel and the sound.It is equivalent to
During pressure setting, a series of accurate adjustings are provided and feed back to user, and the pressure change between each gear is
It is knowable and computable.This is not just convenient to use person and is adjusted, and also improves use feeling.
In addition, in the embodiment being arranged on valve seat in fastener, as shown in fig. 6, elastic arm (blocked by other component and
Can not show) valve seat 611 can be connected to.As an example, an opening can be set on valve seat 611.Elastic arm is located at should
In opening, and the first end of elastic arm is connected on valve seat 611.Raised 621b is arranged on the opposite with first end of elastic arm
In second end.Raised 621b can engage with gear slot 622.In this embodiment, the support portion 612b of valve deck 612 is used to support shelves
Position slot 622.The structure and working method that process and process protrusions 621b are adjusted for pressure are same as the previously described embodiments,
Therefore it will not be described in great detail herein.
In another group of preferred embodiment, the resilient engagement between fastener and gear slot can also be by with elastomer
Convex block, rigid ball etc. are realized.As shown in Fig. 7 a-7b, fastener 721 can include limiting slot 721a, protrusion 721b and bullet
Property body 721c.Limiting slot 721a is arranged on valve seat 711 (see Fig. 7 b) or valve deck 712 (see Fig. 7 a).Valve deck in Fig. 7 a-7b
712 all include threaded joints and support portion.In figure 7 a, limiting slot 721a can be arranged on the support portion of valve deck 712.
In Fig. 7 b, gear slot 722 is arranged on the support portion of valve deck 712.Support portion can be rigid.Support portion can also be configured to
There is certain elasticity under external force, for example, when fastener 721 crosses the convex position of gear slot 722, support portion can have
Certain deformation.Protrusion 721b is arranged in limiting slot 721a.Protrusion 721b is limited by the notch of limiting slot 721a,
Engage except a part of extended 721a to limiting slot of only protrusion 721b with gear slot 722.Limiting slot 721a can have
Be open small and big bottom structure.Protrusion 721b can be rigid ball.The diameter of rigid ball is more than the opening of limiting slot 721a
Size, so as to limit except the extended 721a to limiting slot of rigid ball only a part.In addition to this, protrusion 821b can also have
There are other structures, such as shown in Fig. 8 a-8b, only a part is stretched out except limiting slot as long as can be limited by limiting slot
.Elastomer 721c is arranged between the bottom of limiting slot 721a and protrusion 721b, is pushed away to be provided for protrusion 721b
Power.Elastomer 721c can be spring, or the elastomer of silica gel, foam etc..
When ventilation control device would generally will treat pressure by rotary valve cover before use and be set to desirable value, and not
Wish to generate pressure oscillation over the course for the treatment of.But the maloperation of patient body when either accidentally touching or wear
Movement may all cause valve deck to rotate, and the positive pressure in the cavity of external breathing mask be made to change, so as to lead
Cause failure in treatment.Based on this, it is further preferred that ventilation control device provided by the invention further includes locking mechanism.Locking machine
Structure is the rotation for limiting valve cap, and only needs to unlock locking when needed.Locking mechanism can make to regulate
Pressure position fix, do not change due to external factor.The locking mechanism is configured to：It, will after valve deck is rotated relative to valve seat
Fastener is locked in corresponding gear slot.
In a preferred embodiment, ventilation control device includes a kind of pusher locking mechanism.As shown in Fig. 3,4 and 9,
The locking mechanism 240 is assemblied on valve deck 212.Wherein, the locking mechanism shown in Fig. 3 and 4 is in the lock state, shown in Fig. 9
Locking mechanism is in the unlocked state.Locking mechanism 240 includes locking piece 241 and lever 242.
Locking piece 241 is in the inside for being located at fastener 221 in the radial direction of valve deck 212.Locking piece 241 has locking bit
It puts and unlocked position.Locking piece 241 is resisted against when being in the locked position on fastener 221.In this way, fastener 221 can not be crossed
The convex position of gear slot 222, so as to be locked in the gear slot 222 currently engaged, valve deck 212 can not rotate.At locking piece 241
When unlocked position, fastener 221 can follow the rotation of valve deck 212 to engage with adjacent gear slot 222.Lever 242 connects
Locking piece 241 is connected to, locking piece 241 to be driven to move between locked and unlocked positions.Lever 242 is in valve deck 212
The outside for being axially disposed valve deck 212, with convenient for users to operation.In a preferred embodiment, locking piece 241 can
Think the cantilever for being connected to lever 242.Fluting can be provided on valve deck 212.Cantilever axially passes through fluting to prolong
Extend to the inside of valve deck 212.In addition, the groove 143 (see Fig. 1) or anti-skidding convenient for users to crawl can also be set on lever
Line etc..
As an example, locked can be two positions set along central axis P-P.In this way,
Locking piece 241 can be driven by lever 242 and be moved along central axis P-P, it will be able to locked it
Between move.Herein, locking piece 241 carries out translational movement.When needing to carry out Prssure lock timing, by lever 242 by locking piece
241 inwardly push, and locking piece 241 is resisted against on fastener 221, and such fastener 221 cannot deform, due to valve seat
The interference of gear slot 222 on 211 and can not rotate, as shown in Figure 3.Locking piece 241 is in the locked position.It is solved when needing to adjust
During lock, lever 242 is pulled outwardly along central axis P-P, locking piece 241 leaves fastener 221, and locking piece 241 is in unlock
Position.At this point, fastener 221 is no longer influenced by the limitation of locking piece 241, as shown in figure 9, fastener 221 restores deformability,
With regard to having restored adjusting of the valve deck 212 to treatment pressure.At this point, rotary valve cover 212, fastener 221 can be rotated to it is adjacent
Gear slot 222 engage, until adjusting to ideal treatment pressure.When locking mechanism 240 is in the unlocked state, valve can be pulled out
The outside of lid 212 can also prevent locking mechanism 240 from deviating from valve deck 212 by modes such as hanging buckles 243.Locking mechanism 240 can be with
It is made of rigid metal or on-deformable plastic or other material.Locking mechanism 240 can also by common plastic material,
But it needs to ensure that locking piece 241 cannot deform in locking, this can add by the radially inner side of locking piece 241 increasing
The structures such as strong part 1000 are realized (see Figure 10).The reinforcer 1000 can be fixed on valve deck 212.Reinforcer 1000 can support
It leans against on locking piece 241.Reinforcer 1000 can be using central axis P-P as the cylinder or other structures of axis.The reinforcer
1000 can also increase in the embodiment shown in Fig. 7 a-7b, Fig. 8 a-8b, Figure 11 a-11b etc..In addition, being not provided with reinforcer
In the case of 1000, locking piece 241 can also be designed to cylinder, to keep its rigidity.
It, can be with it will be understood to those skilled in the art that by simple modification on the basis of above-mentioned locking mechanism 240
It is applied in other embodiment.For example, the principle of locking mechanism 240 can be applied to the embodiment shown in Fig. 7 a and 8a
In.When the locking piece 241 of locking mechanism 240 is moving inwardly into latched position, can squeeze in radially outward direction
Elastic arm (being not shown, may refer to the elastic arm 221a in Fig. 3 to understand) and fastener 721 and 821 thereon, make elastomer
721c and 821c is in most compressed state, so as to enable protrusion 721b and 821b that can not return to limiting slot 721a and 821a
It is interior, and then the convex position of gear slot 722 and 822 can not be crossed.
The movement of locking piece between locked and unlocked positions further includes rotation and moves other than above-mentioned translational movement
It is dynamic.Therefore, ventilation control device can include a kind of rotating locking mechanism.Specifically, locked can
Think two positions of the circumferential direction setting along valve deck 212.Locking piece 1041 is shown referring to Figure 11 a and 11b, Figure 11 a
It is in the locked position, Figure 11 b show that locking piece 1041 is in the unlocked position.It is identical with previous embodiment in Figure 11 a and 11b
Component employs identical reference numeral, and is described in detail herein only for difference.Locking piece 1041 can be by
Lever 1042 drives the circumferential direction along valve deck 212 to move, i.e., along the direction shown in arrow in figure or with shown in arrow
Direction it is opposite method movement, in such manner, it is possible to move between locked and unlocked positions.Herein, locking piece 1041 into
Row moving in rotation.As shown in fig. 11a, locking piece 1041 is in the locked position, and is resisted against on fastener 221.It needs to adjust pressure
When, along the direction rotation process handle 1042 shown in arrow, locking piece 1041 leaves fastener 221, and fastener 221 is no longer influenced by
The limitation of locking piece 241, as shown in figure 11b.At this point, rotary valve cover 212, fastener 221 can be rotated to adjacent shelves
Position slot 222 engages, until adjusting to ideal treatment pressure.After treating pressure adjusting, rotation process handle can be continued
1042, make locking piece 1041 against fastener 221.Similarly as described abovely, those skilled in the art is by simple variant,
The rotating locking mechanism can also be applied in the embodiment shown in Fig. 7 a and 8a.
In addition, rotating locking mechanism can also be accomplished by the following way：It can be provided on locking piece 1041 recessed
Groove when needing to enter unlocked state, is directed at fastener 221 by slot；When needing to enter lock-out state, by locking piece 1041
Non-recessed portion alignment fastener 221.
It should be noted that above-mentioned push type locking mechanism and rotating locking mechanism are commonly available to scenario described below：Shelves
Position slot is arranged in the inner peripheral surface of valve seat, and fastener is arranged on the support portion of valve deck.Therefore, it is above-mentioned each in order to be suitable for
The ventilation control device of kind structure, the present invention also provides a kind of more general fastening-type locking mechanisms.The locking mechanism can wrap
Lock fastener 1210 is included, as shown in figure 12.Lock fastener 1210 can be screw etc..Lock fastener 1210 can be along
Valve deck 212 radially across valve deck 212 and be fastened on valve seat 211.Valve deck 212 and valve seat 211 and the basic phase of previous embodiment
Together, it therefore is not detailed herein.The hole that lock fastener 1210 may pass through can be provided on valve deck 212.Locking fastening
Part 1210 is supported after passing through valve deck 212 on valve seat 211.When setting external screw thread on valve deck 212 sets internal thread on valve seat 211
When, lock fastener 1210 then passes through valve seat 211 and is fastened on valve deck 212.When needing to unlock the locking mechanism, as long as will
Lock fastener 1210 is unclamped or is removed.
Optionally, lock fastener 1210 can along valve deck 212 axial direction (P-P) valve deck 212 and be fastened on valve seat 211
On.For example, lock fastener 1210 can pass through valve deck, and support on the rear end face of valve seat 211 from the rear end of valve deck 212.
In this case, lock fastener 1210 is preferably set to telescopic, after being adjusted so as to valve deck 212 relative to valve seat 211
Adapt to the distance between rear end of the two.Further optionally, as shown in figs. 14-15, can be provided on valve seat 1411 allows to lock
Determine the lug 1420 that fastener 1410 passes through.Lock fastener 1410 from outside is fastened to valve deck 1412 after passing through the lug 1420
On.Optionally, the head of lock fastener 1410 can enter the corresponding counterbore or through-hole 1430 being arranged on valve deck 1412
Deng.It is appreciated that similar lug 1420 can also be arranged on valve deck 1412, and counterbore or through-hole are arranged on valve seat 1411
On..
It, can be in the corresponding position of valve seat 1311 in order to ensure the locking effect of lock fastener 1310 referring to Figure 13
It is provided with multiple rotation stop grooves 1320.Multiple rotation stop grooves 1320 are corresponding with multiple gear slots on valve deck 212.Lock fastener
1310 can be fastened on at least one interior of multiple rotation stop grooves 1320 to pass through valve deck 212.Rotation stop groove 1320 can be along central shaft
Line P-P extends, and after being adjusted so as to valve deck 212 relative to valve seat 1311, the head of lock fastener 1310 remains able to be fixed on
In rotation stop groove 1320.
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.Breathing mask has the cavity connected with the mouth and/or nose of patient.It is logical
Gas control device is connected to breathing mask.The current path of ventilation control device is connected to the cavity.Predetermined direction corresponds to institute
State the expiration direction of patient.The all parts that are included for them, structure are referred to the description of corresponding portion above.
The ventilation control device of the present invention by the threaded connection of valve deck and valve seat come the moving resistance of valve assembly, into
And adjust the treatment pressure of breathing mask.By the regulating mechanism that is arranged on valve deck and valve seat (including gear slot and engaging
Part), in rotary valve cover adjustment for the treatment of pressure, feed back to user in a manner of feel and the sound.It is equivalent to and is set in pressure
In the process, a series of accurate adjustings are provided and feed back to user, and the pressure change between each gear be it is knowable, with
Just user's accurately adjustment for the treatment of pressure.Meanwhile this regulating mechanism for adjusting and feeding back that is capable of providing also improves ventilation control
The user experience of device processed, improves use feeling.
The present invention is illustrated by above-described embodiment, but it is to be understood that, above-described embodiment is only intended to
Citing and the purpose of explanation, and be not intended to limit the invention in the range of described embodiment.In addition people in the art
It is understood that the invention is not limited in above-described embodiment, introduction according to the present invention can also be made more kinds of member
Variants and modifications, these variants and modifications are all fallen within scope of the present invention.Protection scope of the present invention by
The appended claims and its equivalent scope are defined.
Claims (7)
1. a kind of ventilation control device for breathing mask, which is characterized in that the ventilation control device includes：
Valve module, including：
Valve seat and valve deck, the valve deck include threaded joints and support portion, and the valve deck can be revolved by the threaded joints
It is connected to the valve seat with turning, the support portion is connected to the threaded joints, and stretches to the inside of the valve seat, described
Valve deck and the valve seat form valve chamber, the valve chamber have allow gas by current path；
Spool, the spool is located in the valve chamber and the controllable gas flow rate by the current path；And
Elastic component, the elastic component are located in the valve chamber, and the elastic component is arranged on the spool and the valve deck
Between, the spool to be given to move offer resistance along predetermined direction；And
Regulating mechanism, including fastener and multiple gear slots,
Wherein, the fastener be arranged on the valve seat inner peripheral surface and the support portion one of them on, it is the multiple
Gear slot is arranged on another in the inner peripheral surface and the support portion of the valve seat, the fastener and at least one institute
The engaging of gear slot is stated, and when the valve deck is rotated relative to the valve seat, the fastener can be with the adjacent gear slot card
It closes；
When the multiple gear slot is arranged in the inner peripheral surface of the valve seat and the fastener is arranged on the support portion,
The ventilation control device further includes the locking mechanism being locked in the fastener in corresponding gear slot；
The locking mechanism includes：
Locking piece, the locking piece is in the inside for being located at the fastener in the radial direction of the valve deck, the locking piece tool
There is locked, wherein, the locking piece is resisted against when being in the latched position on the fastener；And institute
Stating fastener when locking piece is in the unlocked position can follow the rotation of the valve deck to engage with adjacent gear slot；
And
Lever, the lever are connected to the locking piece, to drive the locking piece along the axial direction of the valve deck or
Circumferential direction moves between the latched position and the unlocked position.
2. ventilation control device as described in claim 1, which is characterized in that the fastener includes：
Elastic arm, the first end of the elastic arm are connected on the valve seat or the valve deck；And
Protrusion, the protrusion are arranged in the second end opposite with the first end of the elastic arm, and the protrusion can be with institute
State the engaging of gear slot.
3. ventilation control device as described in claim 1, which is characterized in that the fastener includes：
Limiting slot, the limiting slot are arranged on the valve seat or the valve deck；
Protrusion, the protrusion are arranged in the limiting slot, and the protrusion is limited by the notch of the limiting slot,
Engage except a part of limiting slot of only described protrusion with the gear slot；And
Elastomer, the elastomer are arranged between the bottom of the limiting slot and the protrusion, to be carried for the protrusion
Arch thrust.
4. ventilation control device as described in claim 1, which is characterized in that the locking piece is to be connected to the lever
Cantilever is provided with fluting on the valve deck, and the lever is located at the outside of the valve deck on the axial direction of the valve deck,
The cantilever passes through described slot to extend to the inside of the valve deck along the axial direction.
5. ventilation control device as described in claim 1, which is characterized in that reinforcer is additionally provided on the valve deck, it is described
Reinforcer is located at the inside of the locking piece in the radial direction the valve deck, and is resisted against on the locking piece.
6. a kind of ventilation control device for breathing mask, which is characterized in that the ventilation control device includes：
Valve module, including：
Valve seat and valve deck, the valve deck are rotationally attached to the valve seat, and the valve deck forms valve chamber with the valve seat, described
Valve chamber have allow gas by current path；
Spool, the spool is located in the valve chamber and the controllable gas flow rate by the current path；And
Elastic component, the elastic component are located in the valve chamber, and the elastic component is arranged on the spool and the valve deck
Between, the spool to be given to move offer resistance along predetermined direction；And
Regulating mechanism, including fastener and multiple gear slots,
Wherein, the multiple gear slot is arranged in the circumferential direction of one of them of the valve seat and the valve deck, the card
Component is arranged on another in the valve seat and the valve deck,
Wherein, the fastener engages at least one gear slot, and when the valve deck is rotated relative to the valve seat, institute
Stating fastener can engage with the adjacent gear slot, and the ventilation control device, which further includes, is locked in the fastener accordingly
Gear slot in locking mechanism；
The locking mechanism includes lock fastener, and the lock fastener is axially or radially across the valve deck and described
One of them of valve seat, and be fastened in the valve deck and the valve seat another on；The valve deck and the valve seat
Multiple rotation stop grooves are provided on one of them, the multiple rotation stop groove is corresponding with the multiple gear slot, the locking fastening
Part may pass through another in the valve deck and the valve seat after be fastened at least one of the multiple rotation stop groove.
7. a kind of breathing mask equipment, which is characterized in that including：
Breathing mask, the breathing mask have the cavity connected with the mouth and/or nose of patient；And
Ventilation control device as described in any one of claim 1-6, the ventilation control device are connected to the respiratory surface
Cover, the current path of the ventilation control device are connected to the cavity.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511004467.4A CN105641793B (en) | 2015-12-29 | 2015-12-29 | For the ventilation control device of breathing mask and breathing mask equipment |
| PCT/CN2016/112690 WO2017114427A1 (en) | 2015-12-29 | 2016-12-28 | Air passage control device for use in breathing mask and breathing mask apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511004467.4A CN105641793B (en) | 2015-12-29 | 2015-12-29 | For the ventilation control device of breathing mask and breathing mask equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105641793A CN105641793A (en) | 2016-06-08 |
| CN105641793B true CN105641793B (en) | 2018-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511004467.4A Active CN105641793B (en) | 2015-12-29 | 2015-12-29 | For the ventilation control device of breathing mask and breathing mask equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105641793B (en) |
| WO (1) | WO2017114427A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105641793B (en) * | 2015-12-29 | 2018-06-29 | 北京怡和嘉业医疗科技股份有限公司 | For the ventilation control device of breathing mask and breathing mask equipment |
| CN109771785B (en) * | 2019-03-08 | 2024-06-14 | 巴豪斯医疗器械（苏州）有限公司 | Radial rotating device of medical breathing machine support |
| CN111202888A (en) * | 2020-03-17 | 2020-05-29 | 陈思 | Pressure-controllable breathing nasal plug and single-tube breathing machine thereof |
| CN113332624B (en) * | 2021-07-07 | 2022-06-24 | 河南科技大学第一附属医院 | Intelligent breathing filtering device |
| CN113521474B (en) * | 2021-07-12 | 2024-06-25 | 济南国科医工科技发展有限公司 | Pressure-controllable breathing mask device |
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| CN202069986U (en) * | 2011-05-11 | 2011-12-14 | 吴青 | Novel breather valve |
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| CN105169543A (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 |
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| US5950623A (en) * | 1997-10-16 | 1999-09-14 | Ohmeda Inc. | Adjustable pressure limiting valve for anesthesia breathing circuit |
| CN101642599A (en) * | 2008-08-06 | 2010-02-10 | 北京谊安医疗系统股份有限公司 | Safety valve and breathing machine with same |
| CN101837582B (en) * | 2010-04-22 | 2012-02-01 | 宁波飞驹工具有限公司 | Novel rotating speed adjusting mechanism |
| CN202775821U (en) * | 2012-06-15 | 2013-03-13 | 浙江永达不锈钢制品有限公司 | Pressure regulating valve for pressure cooker |
| CN103083777A (en) * | 2012-10-15 | 2013-05-08 | 南京蓝泰医疗器械有限公司 | Safety valve used for medical instrument |
| CN105641793B (en) * | 2015-12-29 | 2018-06-29 | 北京怡和嘉业医疗科技股份有限公司 | For the ventilation control device of breathing mask and breathing mask equipment |
-
2015
- 2015-12-29 CN CN201511004467.4A patent/CN105641793B/en active Active
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2016
- 2016-12-28 WO PCT/CN2016/112690 patent/WO2017114427A1/en active Application Filing
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| US4823828A (en) * | 1987-05-28 | 1989-04-25 | Mcginnis Gerald E | Pressure relief valve |
| US7207332B1 (en) * | 2000-03-07 | 2007-04-24 | Gerardus Wilhelmus Lugtigheid | Apparatus for administering a gas to a person or an animal |
| CN202069986U (en) * | 2011-05-11 | 2011-12-14 | 吴青 | Novel breather valve |
| CN203463775U (en) * | 2013-07-24 | 2014-03-05 | 浙江荣鹏气动工具有限公司 | Novel flow adjusting mechanism |
| CN204017070U (en) * | 2014-08-27 | 2014-12-17 | 王兴旗 | A kind of device for the treatment of sleep apnea syndrome |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2017114427A1 (en) | 2017-07-06 |
| CN105641793A (en) | 2016-06-08 |
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Address after: 100041 Beijing City, Shijingshan District, West Street, building No. 19, the main floor of the five Applicant after: Beijing Ka Yip Yee medical Polytron Technologies Inc Address before: 100041 Beijing City, Shijingshan District, West Street, building No. 19, the main floor of the five Applicant before: Beijing delightful harmony Jia Ye medical science and technology company limited |
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