CN104353164B - Spacer for metered dose inhaler - Google Patents
Spacer for metered dose inhaler Download PDFInfo
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- CN104353164B CN104353164B CN201410608635.XA CN201410608635A CN104353164B CN 104353164 B CN104353164 B CN 104353164B CN 201410608635 A CN201410608635 A CN 201410608635A CN 104353164 B CN104353164 B CN 104353164B
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- flap
- housing
- exhaust passage
- suction hole
- fog
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Abstract
The invention discloses a spacer for a metered dose inhaler. The spacer comprises a shell, a one-way valve and an inhalation component, wherein a cavity is formed in the shell and a one-way valve supporting structure is formed at one end; the one-way valve supporting structure comprises a sealing part, a mounting seat and an exhaust passage; the sealing part is provided with a suction hole; the one-way valve comprises a joint part, a first valve flap and a second valve flap; the first valve flap and the second valve flap can bend elastically relative to the joint part along the same direction, so that the first valve flap seals the suction hole and meanwhile the second valve flap opens the exhaust passage, or the first valve flap opens the suction hole and meanwhile the second valve flap seals the exhaust passage; the inhalation component is detachably buckled on the shell and is provided with the one-way valve in a covering manner. The spacer has smaller inhalation resistance and a simpler structure, and the one-way valve is detachable.
Description
Technical field
The present invention relates to a kind of fog-storage can, more particularly, to a kind of fog-storage can for sucking quantitative aerosol.
Background technology
Chronic respiratory tract infection disease, particularly asthma, it has also become the major disease of impact human health and quality of the life
One of.At present, the treatment most common method of asthma is that MDI (Metered dose inhalers, quantitative aerosol) sucks treatment
MDI medicine is sucked using respiratory and by respiratory tract, MDI medicine is directly sent to lung under inspiratory airflow effect by method
Portion.
In order to realize this therapy, typically MDI medicament sprayer is coordinated using the fog-storage can for sucking quantitative aerosol
By drug delivery to pulmonary.The MDI medicine that MDI fog-storage can ejects through MDI medicament ejector as caching container storage, then
Patient is from MDI fog-storage can Sucked medicine.Therefore, chemical spray can be separated with sucking this two processes using MDI fog-storage can,
Reduce medicine in the intraoral utilization rate remaining and improving medicine.MDI fog-storage can mainly includes being adapted to MDI medicament sprayer
Adaptable interface, for storing and transporting the housing of MDI medicine, for controlling check valve and the sucting of medicine one-way flow
Part.
In prior art, common MDI fog-storage can, using the annular valve with retaining discs, is characterized in that structure is tight
Gather, sealing good, but due to valve inlet channel area little so that the suction resistance of MDI fog-storage can is larger.And check valve
Valve portion is sealing structure, is difficult to dismounting to clean or to change valve.In addition, this valve mechanism design is complex, from
And cause this MDI fog-storage can complex structure.
Content of the invention
Based on this it is necessary to provide that a kind of suction resistance is little, quick detachable and structure is relatively simple for sucking firm gas
The fog-storage can of mist agent.
A kind of fog-storage can for sucking quantitative aerosol, including：
Housing, described enclosure interior is formed with a cavity, and described housing is formed with check valve supporting construction, institute in one end
State check valve supporting construction to include：
Sealing, is arranged at described cavity side, and described sealing is offered the suction hole being communicated with described cavity；
Mounting seat, is arranged on described sealing；And
Exhaust passage, runs through described housing sidewall；
Check valve, is removable installed in described check valve supporting construction, including：
Joint portion, is removable installed in described mounting seat；
First flap, stretches out along described joint portion and is covered on described suction hole；And
Second flap, stretches out along described joint portion and is arranged in described exhaust passage；And
Inhalation part, is removably fastened on described housing and covers and set described check valve；
Wherein, described first flap can relative described joint portion elasticity be bent in the same direction with described second flap,
So that described first flap seals the second flap described in while described suction hole opens described exhaust passage, or described first
Flap is opened the second flap described in while described suction hole and is sealed described exhaust passage.
Wherein in an embodiment, the thickness of described first flap and described second flap is respectively less than 2 millimeters, and described the
One flap and the second flap are gradually distance from described cavity along itself bearing of trend, and default with being formed radially of described joint portion
Inclination angle, described inclination angle is 1～45 degree.
Wherein in an embodiment, described housing includes the first housing and is connected on described first housing second
Housing, described housing and described cavity are streamlined.
Wherein in an embodiment, described first housing includes adaptation end, case and the connection being sequentially connected
End, the diameter of section of described case is gradually increased along away from described adaptation extreme direction, and described second housing includes being in it
The interface portion at two ends and connecting portion, described connecting portion is welded on the connection end of described first housing, and described check valve supports knot
It is configured in described interface portion, the internal diameter of described second housing is gradually reduced along the direction away from described first housing.
Wherein in an embodiment, described suction hole is weld access hole, and described sealing is in the both sides of described suction hole
Protrude out formation stopping rib respectively, each stopping rib extends to described mounting seat, described air-breathing radially from the side wall of described housing
The both sides of the edge in hole are formed with the first supporting surface to corresponding stopping rib, and described first flap is sector, and its laminating supports
On described first supporting surface.
Wherein in an embodiment, described first supporting surface is along described sealing radially inwardly towards described cavity
Tilt, the angle of inclination of the relatively described cavity radial direction of described first supporting surface is 1～45 degree, at the fan-shaped outer rim of described suction hole
It is formed with primary sealing area, the two ends of described primary sealing area are connected with corresponding two the first supporting surfaces, described first flap
Fan-shaped outer rim be formed with the first binding face, described first binding face laminating is supported on described primary sealing area.
Wherein in an embodiment, the bottom profile of described exhaust passage is sector, and described exhaust passage is by described gear
Only rib block to be to separate with described suction hole, and the bottom surface of described exhaust passage is along described sealing radially inwardly towards institute
State cavity, the angle of inclination of the relatively described cavity radial direction in bottom surface of described exhaust passage is 1～45 degree.
Wherein in an embodiment, the both sides up and down of the fan-shaped outer rim of described exhaust passage formed respectively aerofluxuss top surface with
Aerofluxuss supporting surface, described aerofluxuss supporting surface is connected with the bottom surface of described exhaust passage, and described second flap is fan-shaped and laminating
Support on described aerofluxuss supporting surface.
Wherein in an embodiment, the fan-shaped outer rim of described second flap is formed with the second binding face, described second patch
The laminating of conjunction face is supported on described aerofluxuss supporting surface, and the overall size of described second flap is less than the profile chi of described first flap
Very little.
Wherein in an embodiment, described check valve is spill stereo-flower lobed, and described suction hole is two and symmetrical
Setting, described exhaust passage is two and be symmetrical arranged, the axis of described two suction holes and described two exhaust passages
Axis is vertical, the both sides of each exhaust passage by corresponding two stopping rib blocks to separate with adjacent suction hole, described
First flap is two and is covered each by corresponding suction hole, and described second flap is two and is respectively arranged at corresponding
In exhaust passage.
Fog-storage can only passes through the first flap and the elasticity bending of the second flap coordinates suction hole and exhaust passage, thus real
Show one-way intake or aerofluxuss, which reduced suction resistance and make fog-storage can structure relatively simple.In addition, check valve is detachable
Be installed in housing, therefore it is easy to the dismounting of fog-storage can.
Brief description
Fig. 1 is the side schematic view of first embodiment MDI fog-storage can；
Fig. 2 is the three-dimensional exploded view of MDI fog-storage can shown in Fig. 1；
Fig. 3 is the side view of the first housing of MDI fog-storage can shown in Fig. 1；
Fig. 4 is the schematic perspective view of the second housing of MDI fog-storage can shown in Fig. 1；
Fig. 5 is the side view of the second housing shown in Fig. 4；
Fig. 6 is the top view of the second housing shown in Fig. 5；
Fig. 7 A is the second housing shown in Fig. 6 along the sectional view of A-A；
Fig. 7 B is the second housing shown in Fig. 6 along the sectional view of B-B；
Fig. 8 is the side view of the check valve of MDI fog-storage can shown in Fig. 1；
Fig. 9 is the top view of check valve shown in Fig. 8；
Figure 10 is the upward view of check valve shown in Fig. 8；
Figure 11 is the top view of the adaptation joint of MDI fog-storage can shown in Fig. 1；
Figure 12 is the side view of the mask of MDI fog-storage can shown in Fig. 1；
Figure 13 is the suction nozzle of MDI fog-storage can of second embodiment and the side view of suction nozzle cover；
Figure 14 A-14B is the top view of suction nozzle and side view shown in Figure 13；
Figure 15 A be second embodiment MDI fog-storage can when breathing process, along the broken section of the first flap axis
Figure；
Figure 15 B be second embodiment MDI fog-storage can when breathing process, along the broken section of the second flap axis
Figure；
Figure 16 A be second embodiment MDI fog-storage can when exhalation process, along the broken section of the first flap axis
Figure；
Figure 16 B be second embodiment MDI fog-storage can when exhalation process, along the broken section of the second flap axis
Figure.
Specific embodiment：
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.In accompanying drawing
Give presently preferred embodiments of the present invention.But, the present invention can realize in many different forms however it is not limited to this paper institute
The embodiment of description.On the contrary, providing the purpose of these embodiments to be to make the understanding to the disclosure more thorough
Comprehensively.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or can also there is element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or may be simultaneously present centering elements.Term as used herein " vertical ", " level ", " left ",
" right " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technology used herein and scientific terminology and the technical field belonging to the present invention
The implication that technical staff is generally understood that is identical.The term being used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body is it is not intended that in limiting the present invention.Term as used herein " and/or " include one or more phases
The arbitrary and all of combination of the Listed Items closing.
Refer to Fig. 1 and Fig. 2, the MDI fog-storage can 100 of first embodiment includes the first housing 10, the second housing 20, list
To valve 30, adaptation joint 40 and mask 60.First housing 10 is connected with the second housing 20 and together with being assemblied in, and is adapted to joint 40
It is detachably mounted on one end of the first housing 10, for connecting MDI medicament sprayer.Check valve 30 is detachably mounted on
On two housings 20, mask 60 is detachably fastened on the second housing 20 and covers and sets check valve 30.
Refer to Fig. 3, the first housing 10 includes adaptation end 12, case 14 and the connection end 16 being sequentially connected.The
One housing 10 entirety is through injection mo(u)lding, and has certain antistatic property.Adaptation end 12, case 14 and connection end 16
Cross section be annular.Adaptation end 12 is straight tube shape, for being connected with adaptation joint 40.The cross section of case 14 is straight
Footpath is gradually increased along away from adaptation end 12 direction.The side profile of case 14 is smooth streamlined, and likeness in form vase simultaneously accords with
Close jet-stream wind aerodynamic principle.Connection end 16 is used for being connected with the second housing 20.
Refer to Fig. 4, the second housing 20 is welded on the connection end 16 of the first housing 10.The internal diameter of the second housing 20 is along far
Direction from the first housing 10 is gradually reduced, and its side profile is streamlined, so that the first housing 10 and the second housing 20 are altogether
With one complete vase-like streamlined housing of formation.First housing 10 is moulded by the high-quality of the high grade of transparency with the second housing 20
Material is made, and internal structure is fully transparent visible.The inside of the first housing 10 and the second housing 20 is collectively forming vase-like streamline
The cavity 11 (see Fig. 2) of shape, 200～350 milliliters of the volume scope of cavity 11.
See also Fig. 5 to Fig. 7 B, the second housing 20 includes interface portion 21 and the connecting portion 23 being in its two ends, and
Check valve supporting construction 25.Interface portion 21 is annular, and it is used for being connected with mask 60.Company on connecting portion 23 and the first housing 10
Connect end 16 to be connected together by way of ultra-sonic welded.Check valve supporting construction 25 is formed in interface portion 21, and it includes close
Envelope portion 251, the mounting seat 252 being arranged at sealing 251 center and two exhaust passages symmetrically running through interface portion 21 side wall
253.Sealing 251 is circular plate-like shape, is arranged in interface portion 21 and keeps off located at cavity 11 side.Symmetrically open on sealing 251
It is provided with two suction holes 2511, each suction hole 2511 is the weld access hole with the center of sealing 251 as the center of circle.Sealing
251 protrude out formation stopping rib 2513 respectively in the both sides of each suction hole 2511, and stopping rib 2513 is radially from interface portion 21
Side wall extends to mounting seat 252.The both sides of the edge of suction hole 2511 are formed with the first support to corresponding stopping rib 2513
Face 2515, the first supporting surface 2515 radially inwardly tilts gradually downward along sealing 251, that is, move closer to cavity 11,
The inclination angle of its cavity 11 radial direction relatively is 1～45 degree.First supporting surface 2515 is clinoplain or tilts curved surface.Suction hole
Edge at 2511 fan-shaped outer rim i.e. neighbouring interface portion 21 is formed with primary sealing area 2517.The two ends of primary sealing area 2517
It is connected with two the first supporting surfaces 2515.Mounting seat 252 includes opening and deviates from the bowl-type body 2521 of cavity 11 and be arranged at
Mounting post 2523 in bowl-type body 2521.Bowl-type body 2521 is fitted around post 2523 and forms annular groove 2525.
The axis of two exhaust passages 253 is vertical with the axis of two suction holes 2511.Each exhaust passage 253 is passed through
Wear interface portion 21 to communicate with the external world, its bottom profile is the sector with sealing 251 center as the center of circle.Exhaust passage 253
The central angle of bottom profile is less than the central angle of suction hole 2511.The both sides of exhaust passage 253 are by corresponding two stopping ribs
2513 blocks, to separate with adjacent suction hole 2511.The bottom surface 2531 of exhaust passage 253 is radially inner along sealing 251
Direction tilts gradually downward, and the inclination angle of its cavity 11 radial direction relatively is 1～45 degree.Exhaust passage 253 is neighbour in fan-shaped outer rim
The both sides up and down of proximity oral area 21 side wall form aerofluxuss top surface 2533 and aerofluxuss supporting surface 2535 respectively.Aerofluxuss supporting surface 2535 shape
Become at the circular arc outer rim of exhaust passage 253, it is connected with bottom surface 2531.Aerofluxuss top surface 2533 and aerofluxuss supporting surface 2535 are
The plane axially vertical with cavity 11.It is appreciated that exhaust passage 253 can be the pipe-like knot being arranged on the second housing 20
Structure.
Refer to Fig. 8 to Figure 10, check valve 30 is detachably mounted in mounting seat 252, and it adopts spill stereo-petal
Type designs.Check valve 30 includes joint portion 31 and a pair first flaps 33 extending radially outwardly along joint portion 31 and a pair
Two flaps 35.Joint portion 31 is cylindric, and its bottom is provided with the base 311 of cylinder, offers installation in base 311 bottom
Hole 3111 is simultaneously sheathed in the mounting post 2523 of mounting seat 252 by installing hole 3111.First flap 33 with the second flap 35 is
Stereo-flower lobed flap, the first flap 33 and the second flap 35 are scalloped profile.Two the first flaps 33 correspond to two suctions
Pore 2511 is installed and is symmetrical arranged, and two the second flaps 35 are installed and are symmetrical arranged corresponding to two exhaust passages 253.Two
The axis of the first flap 33 is vertical with the axis of two the second flaps 35.The overall size of the first flap 33 is more than the second valve
The overall size of lobe 35, and the overall size more than suction hole 2511.First flap 33 is along the direction away from joint portion 31 gradually
Away from cavity 11, and it is formed radially a default inclination angle with joint portion 31.In the present embodiment, the first flap 33 is relative
The inclination angle of joint portion 31 radial direction is 1～45 degree.The fan-shaped outer rim of first flap 33 is formed with the first binding face 331.First laminating
Face 331 is sticked and is supported on primary sealing area 2517.Second flap 35 is gradually distance from cavity 11 along the direction away from joint portion 31,
And with joint portion 31 radial direction in a default inclination angle.In the present embodiment, the second flap 35 joint portion 31 radial direction relatively
Inclination angle be 1～45 degree.The fan-shaped outer rim of the second flap 35 is formed with the second binding face 351.Second binding face 351 is sticked and props up
Support on aerofluxuss supporting surface 2535.In the present embodiment, the first binding face 331 and the second binding face 351 are plane.Unidirectional
Valve 30, through injection molding molding that is, is fabricated from a flexible material by liquid-state silicon gel.The thickness of the first flap 33 and the second flap 35 is equal
Less than 2 millimeters, its thickness is preferably less than 1 millimeter.Check valve 30 passes through frivolous soft material and adds unique stereo-flower
Lobed structure design, reduces check valve 30 and opens required minimum pressure.
Refer to Figure 11, adaptation joint 40 is arranged on the adaptation end 12 of the first housing 10.Adaptation joint 40 is circular,
Insertion thereon offers the perforate 41 of circle, for being sheathed on the interface end of MDI aerosol apparatus.Adaptation joint 40 upper end around
Perforate 41 is provided with the slot 43 of annular, plugs for the adaptation end 12 for the first housing 10.Flexible round hole 41 is permissible
Mate MDI aerosol apparatus interface end of different shapes.
Refer to Fig. 1～2 and Figure 12, the silica gel lining that mask 60 includes freshwater mussel shape housing 61 and is arranged on the edge of housing 61
Pad 63.Housing 61 is included the assembling end 611 being linked and packed with the second housing 20 and is provided with air bleeding valve 613.Pad of silica gel 63 is adopted
With liquid-state silicon gel through injection molding molding, comfortable with patient contact and can guarantee that pad of silica gel 63 and patient's facial skin it
Between air-tightness.It is appreciated that housing 61 can also be integrally formed with pad of silica gel 63.
It is appreciated that mask 60 can also be substituted by the inhalation part of other structures or shape, as shown in Figure 13 to Figure 14 B
Suction nozzle 50 in second embodiment.Suction nozzle 50 is sheathed in the interface portion 21 of the second housing 20, and its two ends is respectively formed with suction
Enter end 51 and connection end 52.The cross sectional shape of suction side 51 is that class is oval, meets ergonomic designs, in order to patient's
Lip coats suction side 51.Connection end 52 is formed at the other end of suction nozzle 50, and size is more than suction side 51, and it is used for connection the
The interface portion 21 of two housings 20.Suction nozzle 50 is also outwards convexly equipped with bite 53 around its periphery.Bite 53 is formed at distance and inhales
Enter on the outer surface of end 51 end certain distances, in order to assist and to point out patient correctly or to be suitably engaged position.MDI stores up mist
Tank 100 may also include the suction nozzle cover 55 covering on suction nozzle 50, is entered in cavity 11 with preventing dust from passing through suction nozzle 50.
The assembling process of MDI fog-storage can 100 is as follows：First housing 10 and the second housing 20 pass through ultrasonic welding process shape
Become permanent bond.The installing hole 3111 of check valve 30 is sheathed in the mounting post 2523 of the mounting seat 252 in the second housing 20.
Meanwhile, two the first flaps 33 are covered each by two suction holes 2511 on sealing 251, and are supported in the first supporting surface
On 2515.Outer rim on first flap 33 fits on corresponding primary sealing area 2517.Similarly, the second flap 35 has been distinguished
The bottom surface 2531 of two exhaust passages 253 of all standing.Second binding face 351 of the second flap 35 fits in corresponding aerofluxuss and supports
On face 2535.The adaptation end 12 of the first housing 10 is removably inserted in the slot 43 of adaptation joint 40.By suction nozzle 50 and
Two housings 20 are fastened on together, make the connection end 52 of suction nozzle 50 lower end buckle into the clamping part in the interface portion 21 of the second housing 20
Position, thus together with suction nozzle 50 is assemblied in the second housing 20.
During use, by the perforate 41 of the interface end insertion adaptation joint 40 of MDI medicament sprayer, MDI medicine is sprayed
Day with fog is connected together with MDI fog-storage can 100.Spray into one by MDI medicament sprayer into the cavity 11 of MDI fog-storage can 100
Determine the medicine of dosage.Patient contains the suction side 51 of suction nozzle 50 with mouth.In air-breathing, check valve 30 is in open mode, medicine
Thing molecule is inhaled by a patient through check valve 30 from cavity 11, reaches pulmonary through respiratory system.During expiration, check valve 30 is closed
Close, the gas of exhalation is discharged the external world through the exhaust passage 253 on the second housing 20.
Specifically, refer to Figure 15 A and Figure 15 B, in inspiratory cycle, the inner space of suction nozzle 50 forms negative pressure, forces
First flap 33 of check valve 30 and the second flap 35 all open upwards, that is, relative to joint portion 31 towards the direction bullet away from cavity 11
Property bending.Now, the first flap 33 is away from the first supporting surface 2515, suction hole 2511 connection cavity 11 and suction nozzle 50 inner chamber.Chamber
Drug particles in body 11 will be inhaled by a patient through suction hole 2511 flowing with the air in cavity 11；Second flap 35 leaves
The bottom surface 2531 of exhaust passage 253, until the fan-shaped outer rim of the second flap 35 fit in the aerofluxuss top surface 2533 of exhaust passage 253 with
Exhaust passage 253 is closed, prevents the air outside cavity 11 of MDI fog-storage can 100 from entering.
Refer to Figure 16 A and Figure 16 B, in exhalation cycle, patient is from respiratory system expellant gas in suction nozzle 50
Cavity space produces malleation.Now, the first flap 33 replys initial position with the relative joint portion 31 of the second flap 35.First flap 33
Suction hole 2511 is covered, by cavity 11 and suction nozzle 50 inner chamber cut-off, so that the gas of exhalation cannot directly enter in cavity 11.
Meanwhile, the second binding face 351 of the second flap 35 fits on aerofluxuss supporting surface 2535 to open exhaust passage 253, makes trouble
The gas of person's exhalation is discharged by exhaust passage 253.Follow-up air-breathing, exhalation process will repeat above-mentioned action.
MDI fog-storage can 100 only pass through the first flap 33 and the second flap 35 elasticity bending coordinate suction hole 2511 and
Exhaust passage 253, it is achieved thereby that one-way intake or aerofluxuss, which reduces suction resistance and makes MDI fog-storage can 100 structure relatively
For simple.Because check valve 30 is spill stereo-flower lobed, the first flap 33 and the second flap 35 made using flexible material and
It is in an inclination angle with joint portion 31 radial direction, which further reduces check valve 30 and open required minimum pressure.In addition, it is unidirectional
Valve 30 is detachably mounted on the second housing 20, is easy to the dismounting of MDI fog-storage can 100.
Conventional straight tube cavity does not extremely meet drug molecule injection, transports principle of dynamics.Because through conventional MDI
The atomized medicine particle that medicament sprayer sprays high velocity jet in the range of certain coning angle out, for straight tube cavity, is sprayed
The drug molecule of the close coning angle periphery projecting, by the side wall collision with straight tube cavity, easily causes drug molecule in side wall
Residual.And the fusiform cavity of vase-like 11 can avoid the collision of high amount of drug molecule and cavity 11 side wall to make in this case
Become medicine in the residual of side wall.Can achieve reliable company by way of ultra-sonic welded between first housing 10 and the second housing 20
Connect.
It is appreciated that in the case of principle and structure identical, the first flap 33 of check valve 30 and the second flap 35 can
To be 1.The quantity of the first flap 33 and the second flap 35 can also be unequal, and that is, the number of the first flap 33 can be for appointing
Meaning, the number of the second flap 35 can also be arbitrarily individual.It is appreciated that the first housing 10 and the second housing 20 can also one
Molding, this similar change is all contained in protection scope of the present invention.
Embodiment described above only have expressed one or more embodiments of the present invention, and its description is more concrete and detailed
Carefully, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that the common skill for this area
For art personnel, without departing from the inventive concept of the premise, some deformation can also be made and improve, these broadly fall into this
Bright protection domain.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (10)
1. a kind of fog-storage can for sucking quantitative aerosol is it is characterised in that include：
Housing, described enclosure interior is formed with a cavity, and described housing is formed with check valve supporting construction, described list in one end
Include to valve supporting construction：
Sealing, is arranged at described cavity side, and described sealing is offered the suction hole being communicated with described cavity；
Mounting seat, is arranged on described sealing；And
Exhaust passage, runs through described housing sidewall；
Check valve, is removable installed in described check valve supporting construction, including：
Joint portion, is removable installed in described mounting seat；
First flap, stretches out along described joint portion and is covered on described suction hole；And
Second flap, stretches out along described joint portion and is arranged in described exhaust passage；And inhalation part, removably
It is fastened on described housing and covers and set described check valve；
Wherein, described first flap can relative described joint portion elasticity be bent in the same direction with described second flap, so that
Described first flap seals the second flap described in while described suction hole and opens described exhaust passage, or described first flap
Open the second flap described in while described suction hole and seal described exhaust passage.
2. the as claimed in claim 1 fog-storage being used for sucking quantitative aerosol is it is characterised in that described first flap and institute
The thickness stating the second flap is respectively less than 2 millimeters, and described first flap and the second flap are gradually distance from described along itself bearing of trend
Cavity, and the default inclination angle that is formed radially with described joint portion, described inclination angle is 1～45 degree.
3. it is used for as claimed in claim 1 sucking the fog-storage can of quantitative aerosol it is characterised in that described housing includes first
Housing and be connected to the second housing on described first housing, described housing and described cavity are streamlined.
4. it is used for as claimed in claim 3 sucking the fog-storage can of quantitative aerosol it is characterised in that described first housing includes
Adaptation end, case and the connection end being sequentially connected, the diameter of section of described case is along away from described adaptation end side
To being gradually increased, described second housing includes interface portion and the connecting portion being in its two ends, and described connecting portion is welded in described
On the connection end of one housing, described check valve supporting construction is formed in described interface portion, and the internal diameter of described second housing is along far
Direction from described first housing is gradually reduced.
5. the fog-storage being used for sucking quantitative aerosol as claimed in claim 1 is it is characterised in that described suction hole is sector
Perforate, described sealing protrudes out formation stopping rib respectively in the both sides of described suction hole, and each stopping rib is radially from described shell
The side wall of body extends to described mounting seat, and the both sides of the edge of described suction hole are formed with the first support to corresponding stopping rib
Face, described first flap is sector, and its laminating is supported on described first supporting surface.
6. the as claimed in claim 5 fog-storage being used for sucking quantitative aerosol is it is characterised in that described first supporting surface edge
Described sealing radially inwardly tilts towards described cavity, the inclination angle of the relatively described cavity radial direction of described first supporting surface
For 1～45 degree, at the fan-shaped outer rim of described suction hole, be formed with primary sealing area, the two ends of described primary sealing area with corresponding
Two the first supporting surfaces connect, and the fan-shaped outer rim of described first flap is formed with the first binding face, described first binding face laminating
It is supported on described primary sealing area.
7. the as claimed in claim 5 fog-storage being used for sucking quantitative aerosol is it is characterised in that the bottom of described exhaust passage
Facial contour be sector, described exhaust passage by described stopping rib block to separate with described suction hole, the bottom of described exhaust passage
Face radially inwardly tilts towards described cavity along described sealing, the relatively described cavity footpath in bottom surface of described exhaust passage
To inclination angle be 1～45 degree.
8. the as claimed in claim 7 fog-storage being used for sucking quantitative aerosol is it is characterised in that the fan of described exhaust passage
The both sides up and down of shape outer rim form aerofluxuss top surface and aerofluxuss supporting surface, the bottom of described aerofluxuss supporting surface and described exhaust passage respectively
Face connects, and described second flap is fan-shaped and laminating is supported on described aerofluxuss supporting surface.
9. the as claimed in claim 8 fog-storage being used for sucking quantitative aerosol is it is characterised in that the fan of described second flap
Shape outer rim is formed with the second binding face, and described second binding face laminating is supported on described aerofluxuss supporting surface, described second flap
Overall size be less than described first flap overall size.
10. the fog-storage being used for sucking quantitative aerosol as claimed in claim 9 is it is characterised in that described check valve is recessed
Shape stereo-flower lobed, described suction hole is two and is symmetrical arranged, and described exhaust passage is two and is symmetrical arranged, described two
The axis of suction hole is vertical with the axis of described two exhaust passages, and the both sides of each exhaust passage are kept off by corresponding two
Only to separate with adjacent suction hole, described first flap is two and is covered each by corresponding suction hole, institute rib block
State the second flap to be two and be respectively arranged in corresponding exhaust passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410608635.XA CN104353164B (en) | 2014-10-31 | 2014-10-31 | Spacer for metered dose inhaler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410608635.XA CN104353164B (en) | 2014-10-31 | 2014-10-31 | Spacer for metered dose inhaler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104353164A CN104353164A (en) | 2015-02-18 |
| CN104353164B true CN104353164B (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410608635.XA Active CN104353164B (en) | 2014-10-31 | 2014-10-31 | Spacer for metered dose inhaler |
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| CN (1) | CN104353164B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109414717A (en) * | 2016-12-05 | 2019-03-01 | 微邦科技股份有限公司 | Aerosol generating device with replaceable part |
| WO2019019201A1 (en) * | 2017-07-26 | 2019-01-31 | 赵卓睿 | Spacer and inhalation device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6026807A (en) * | 1998-02-27 | 2000-02-22 | Diemolding Corporation | Metered dose inhaler cloud chamber |
| CN204246617U (en) * | 2014-10-31 | 2015-04-08 | 深圳瑞之谷医疗科技有限公司 | For sucking the fog-storage can of quantitative aerosol |
-
2014
- 2014-10-31 CN CN201410608635.XA patent/CN104353164B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6026807A (en) * | 1998-02-27 | 2000-02-22 | Diemolding Corporation | Metered dose inhaler cloud chamber |
| CN204246617U (en) * | 2014-10-31 | 2015-04-08 | 深圳瑞之谷医疗科技有限公司 | For sucking the fog-storage can of quantitative aerosol |
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| Publication number | Publication date |
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| CN104353164A (en) | 2015-02-18 |
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