CN206964629U - A kind of vital capacity instrument air blowing mask - Google Patents
A kind of vital capacity instrument air blowing mask Download PDFInfo
- Publication number
- CN206964629U CN206964629U CN201621411506.2U CN201621411506U CN206964629U CN 206964629 U CN206964629 U CN 206964629U CN 201621411506 U CN201621411506 U CN 201621411506U CN 206964629 U CN206964629 U CN 206964629U
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- CN
- China
- Prior art keywords
- blowing nozzle
- sanitary cover
- air blowing
- vital capacity
- instrument air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
It the utility model is related to a kind of vital capacity instrument air blowing mask, including blowing nozzle, blowing nozzle interface and sanitary cover, the sanitary cover is nontoxic and has certain retractility, and the blowing nozzle is in infundibulate, the perforate end being relatively large in diameter is air blowing end, and the less perforate end of diameter is outlet side.During use, sanitary cover is sleeved on inside blowing nozzle, and then the face of gauger is kept apart with blowing nozzle, cleaning, being hygienic for blowing nozzle is kept, outlet side and sanitary cover assembling are reached into sealing, firm effect on blowing nozzle interface, air blowing end is wrapped up by using sanitary cover, it is well adapted for the face shape of different gaugers, the face of people is hermetically bonded, prevents gas from leaking, has ensured the accuracy of vital capacity instrument measurement.
Description
Technical field
Field of medical device is the utility model is related to, particularly a kind of vital capacity instrument air blowing mask.
Background technology
The PFT of human body can be checked often by doing physical examination in hospital, and lung capacity is a weight for weighing PFT health status
Parameter index is wanted, can typically use vital capacity instrument measurement lung capacity.When measuring lung capacity, gauger needs to have a suck of gas deeply,
Face is fitted on the air blowing mask of vital capacity instrument, then firmly air blowing measurement data.
At present, the air blowing mask of in the market is divided into two kinds：Reusable air blowing mask and disposable air blowing mask,
Reusable air blowing mask is general before gauger's use to wipe air blowing mask using the cotton balls for being impregnated with medicinal alcohol
Sterilization, this sterilization method is simple, and sterilization is not thorough, and then the disease between different gaugers may be caused to intersect sense
Dye, if using other disinfection way, disinfection cycle is long, cost is high, is unfavorable for extensive popularization and uses；It is disposable to blow
Mask, the very ripe mould molding technology moulding by casting of use, different gaugers are blown using different disposable face guards
Measurement, by its waste treatment after use, the purpose for keeping vital capacity instrument air blowing mask hygienic, clean, Jin Erfang are reached with this
Virus cross transmission when gauger uses air blowing mask is stopped.Due to disposable air blowing mask typically using plastic pouring into
Type, the more hard face for being unfavorable for plugging meter person well of quality at edge, gas leak phenomenon is likely to occur during air blowing and is caused
Measurement data is inaccurate；And in plastics pouring molding, the jagged presence in edge of air blowing mask, easily scratch face.
Utility model content
In order to solve the above-mentioned technical problem, one kind is provided when using vital capacity instrument air blowing measurement, can hermetically be pasted
Gauger's face is closed, effectively prevents the vital capacity instrument air blowing mask of gas leakage.
Technical scheme is used by the utility model：
Vital capacity instrument air blowing mask provided by the utility model, including blowing nozzle, blowing nozzle interface and sanitary cover, it is described to defend
Raw set passes through inside the blowing nozzle, and the two-port of the both ends of the sanitary cover along the blowing nozzle stretches out, described
Sanitary cover fits to the surfaces externally and internally of blowing nozzle, and the blowing nozzle is assemblied on blowing nozzle interface.
A kind of vital capacity instrument air blowing mask as described above, it is preferable that the blowing nozzle interface is provided with the perforate of cylinder,
Using this design not only facilitate the sanitary cover by and also be easy to process.
A kind of vital capacity instrument air blowing mask as described above, it is preferable that the blowing nozzle internal structure is hollow, profile is in
" funnel-form ", " funnel-form " larger-diameter opening are gas input port, and the opening of " funnel-form " small diameter exports for gas
Mouthful, the face structure of gauger, while more easily circulated gases have been better adapted to using this design.
A kind of vital capacity instrument air blowing mask as described above, it is preferable that the gas input port horizontal cross-section is ellipse,
The maximum length of the gas input port horizontal cross-section is from close to described gas input port one end to described gas delivery port one end
Reduce successively, gripping demand of the gauger when blowing more easily is met using this design.
A kind of vital capacity instrument air blowing mask as described above, it is preferable that the edge vertical section of the gas input port is
Camber line, the edge are provided around the edge pad of one week, and the pad is made of a soft.It is on the one hand anti-using this design
Only the edge scratches sanitary cover with the sanitary cover directly effect；On the other hand the edge and the cushion designs are more soft
Face is bonded softly, and comfort is stronger.
A kind of vital capacity instrument air blowing mask as described above, it is preferable that the gas delivery port is one tubular
Tubular body structure, the external diameter size of the gas delivery port and the opening diameter size of the blowing nozzle interface are adapted, and are used
This design convenient use, easy to disassemble.
A kind of vital capacity instrument air blowing mask as described above, it is preferable that the sanitary cover is thin-walled tubular body structure, is used
Elastomeric material is molded, and walled thickness is 0.03mm to 0.07mm, and the processing of elastomeric material shaping is reduced using this parameter designing
Difficulty and manufacturing cost, it is also more convenient to use.
A kind of vital capacity instrument air blowing mask as described above, it is preferable that the sanitary cover outline is taper type, described to defend
Two end faces of raw set are equipped with sets of holes, and the side wall of the sanitary cover is provided with hole, are equipped with packing ring on the hole, the hole with
The packing ring is to be detachably connected.Using this design more easily by the stretched sets of holes of the sanitary cover, in the hole
The upper assembling packing ring effectively prevent the sanitary cover thin-walled and tear under external force.
A kind of vital capacity instrument air blowing mask as described above, it is preferable that the sanitary cover is in the less side of end face diameter
Thin-walled is provided with thickened area, and the walled thickness of the thickened area is 0.07mm to 0.15mm, and gas output is stretched out in the thickened area
The outside of mouth, is brought into close contact, the gas delivery port is assembled on blowing nozzle interface with the outer wall of the gas delivery port.Using
This design, the thickened area not only increases the fastening force between the gas delivery port and the blowing nozzle interface, and subtracts
The broken probability of the sanitary cover when the gas delivery port and the blowing nozzle interface assemble is lacked.
A kind of vital capacity instrument air blowing mask as described above, it is preferable that the larger one end of the sanitary cover end face diameter from
The gas input port stretches out, and the hole and the packing ring stretch under external force, the gas input port edge and described
Cavity is formed between pad and the sanitary cover.Designed using this, when the face of gauger fits to the gas input port,
The cavity and the pad can change shape therewith, are hermetically bonded the face of gauger, are well adapted for different measurements
Person's face structure.
In summary, a kind of vital capacity instrument air blowing mask provided by the utility model its having of having compared with prior art
Beneficial effect is：
1st, it is fitted on blowing nozzle inner surface, the face and blowing nozzle of gauger is isolated, no using disposable hygienic set
When same gauger is blown using blowing nozzle, it is not necessary to which changing blowing nozzle only needs to change sanitary cover, you can reaches clean, sanitary
With prevent the purpose of cross infection of disease, while saved resource.
2nd, the design of blowing nozzle is optimized, blowing nozzle better adapts to the face of people using Curve Design, in blowing nozzle
Gas input port edge is provided with pad, and pad and sanitary cover are with the use of the face for preventing burr to scratch people.
3rd, when using the vital capacity instrument air blowing mask, cavity is formed between blowing nozzle and sanitary cover, above cavity
Sanitary cover is more soft, and when different gauger's faces are fitted on blowing nozzle, cavity can change shape therewith, more conducively seal
Ground is bonded the face of different gaugers, it is therefore prevented that the leakage of gas, has ensured the accuracy of measurement data.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of vital capacity instrument air blowing mask provided by the utility model；
Fig. 2 is the structural representation of sanitary cover.
1 it is blowing nozzle interface in figure, 2 be blowing nozzle, 3 be sanitary cover, 4 be hole, 5 be packing ring, 6 is gas input port, 61
For gas input port edge, 7 be pad, 8 be sets of holes, 9 be sets of holes, 10 be gas delivery port, 11 be thickened area, 12 be perforate,
13 be cavity.
Embodiment
, below will be to technology of the present utility model to make the purpose of this utility model, technical scheme and advantage clearer
Scheme is described in detail.Obviously, described embodiment is only the utility model part of the embodiment, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not before creative work is made
Resulting all other embodiment is put, belongs to the scope that the utility model is protected.
As shown in Figure 1, 2, a kind of vital capacity instrument air blowing mask provided by the utility model, including blowing nozzle interface 1, air blowing
Mouth 2 and sanitary cover 3, the both ends of the surface of sanitary cover 3 are provided with sets of holes 8,9, and sanitary cover 3 is passed through from the inside of blowing nozzle 2, and sanitary cover 3 is provided with
Gas input port 6 and gas delivery port 10, the both ends of sanitary cover 3 are stretched out from the both ends of blowing nozzle 2, and blowing nozzle interface 1 is provided with circle
Cylindricality perforate 12, gas delivery port 10 are installed in the perforate 12 of blowing nozzle interface 1.
The inventors discovered that when vital capacity instrument blows measurement lung capacity, the face of gauger can not be bonded well to be blown
Gas mask, cause measurement data inaccurate, it has been investigated that the appearance of this kind of phenomenon is due to existing air blowing mask for once
Property use and use plastic pouring be molded, in actual production, the edge of air blowing mask is it is possible that burr, burr have potential
The possibility of face is scratched, and the air blowing mask quality of plastic shaping is more hard, it is impossible to be well adapted for, be bonded different surveys
The face shape of amount person, i.e. air blowing mask and gauger face are bonded not close, therefore vital capacity instrument air blowing mask is when in use
It is very easy to the phenomenon for air blowing gas leakage occur.
Therefore traditional disposable blowing nozzle is arranged to the blowing nozzle 2 of reuse, the knot of blowing nozzle 2 in the application
Structure is hollow, and outline is " infundibulate ", and one end that " infundibulate " is relatively large in diameter is gas input port 6, " infundibulate " diameter compared with
Small one end is gas delivery port 10, and the horizontal cross-section of gas input port 6 is ellipse, and the maximum length of horizontal cross-section is from gas
The one end of body input port 6 gradually decreases to the one end of gas delivery port 10, the projection of the edge 61 of gas delivery port 6 on vertical section
For camber line, the pad 7 that is made of a soft of being provided with for one week at edge 61.Pad 7 is typically from cotton-spinning fabric, bipeltate
Or the material such as Foamex, preferred Foamex.When gauger is blown using blowing nozzle 2, one week of edge 61 is set
Pad 7 is equipped with, pad 7 can flexibly support sanitary cover 3 and the face of gauger, effectively prevent blowing nozzle 2 and scratch survey
The face of amount person.
Sanitary cover 3 is molded for elastomeric material, typically from the material moulding by casting such as polyurethane, natural emulsion, preferably poly- ammonia
Ester, sanitary cover 3 can be arranged to the thin-wall construction of taper type, and sanitary cover 3 is straight to the cross section of the one end of sets of holes 9 from the one end of sets of holes 8
Footpath is reduced successively, and the sanitary cover thin-walled of the one end of sets of holes 9 is provided with thickened area 11, it is preferable that changes mould in process
Shape, thickened area 11 may be molded to the shapes such as corrugated, zigzag and salient point；The side wall of sanitary cover 3 is provided with hole 4, is set on hole 4
There is packing ring 5, in use, finger is stretched sanitary cover 3 by gauger through packing ring 5, and both convenient use and can prevented health
Set 3 is torn.
When in use, sanitary cover 3 is passed through from the inside of blowing nozzle 2, the one end of sets of holes 9 is stretched out and outside from gas delivery port 10
Extension, the thickened area 11 of the side of sets of holes 9 is stretched, adjusted to the outer wall of gas delivery port 10, then by gas delivery port 10
It is assembled in the perforate 12 of blowing nozzle interface 1, thickened area 11 not only prevents that the thin-wall construction of sanitary cover 3 is broken but also effectively increases
Fastening force between gas delivery port 10 and perforate 12, the one end of sets of holes 8 are stretched out from gas input port 6, finger through packing ring 5 to
Out-draw sanitary cover 3, when sanitary cover 3 stretches out and stretched out from the end of gas input port 6, sanitary cover 3, edge 61 and pad
Cavity 13 is formed between 7, the face of gauger fits to gas input port 6 and blown, and cavity 13 and pad 7 can be with not
Change shape with the face shape of gauger, reached sealing, be flexibly bonded the purpose of gauger's face, and then reduced and blow
Valve 2 is not in use because fitting produces the probability of gas leak phenomenon closely.
The inventors discovered that when the structural parameters of sanitary cover 3 are arranged to following, gauger is used and fabricated as most
Suitable size：The walled thickness of sanitary cover 3 is 0.03mm to 0.07mm, preferably 0.05mm, and the walled thickness of thickened area 11 is
0.07mm to 0.15mm, preferably 0.1mm, above-mentioned size are that empirical verification uses the most convenient and can realize effective reduction
The optimal size of processing cost.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with the power
The protection domain that profit requires is defined.
Claims (10)
- A kind of 1. vital capacity instrument air blowing mask, it is characterised in that：Including blowing nozzle interface (1), blowing nozzle (2) and sanitary cover (3), Cylindrical aperture (12) is set in the blowing nozzle interface (1)；The blowing nozzle (2) includes gas input port (6) and gas exports Mouth (10)；The sanitary cover (3) is thin-walled tubular body structure, and the sanitary cover (3) is internal through the blowing nozzle (2), described Extend the both ends of the blowing nozzle (2) in sanitary cover (3) both ends；The gas delivery port (10) of the blowing nozzle (2) is arranged on institute In the cylindrical aperture (12) for stating blowing nozzle interface (1).
- 2. a kind of vital capacity instrument air blowing mask according to claim 1, it is characterised in that be inside the blowing nozzle (2) Hollow structure, outline are " infundibulate ".
- A kind of 3. vital capacity instrument air blowing mask according to claim 1, it is characterised in that gas input port (6) water Plane section for ellipse, edge (61) vertical section of the blowing nozzle (2) is arc, the blowing nozzle edge (61) with it is described Sanitary cover (3) forms cavity (13).
- 4. a kind of vital capacity instrument air blowing mask according to claim 3, it is characterised in that the edge (61) is provided with lining Pad (7).
- 5. a kind of vital capacity instrument air blowing mask according to claim 1, it is characterised in that sanitary cover (3) thin-walled is thick Spend for 0.03mm to 0.07mm.
- 6. a kind of vital capacity instrument air blowing mask according to claim 5, it is characterised in that the sanitary cover (3) is elasticity Material is molded, and outline is vertebra platform.
- A kind of 7. vital capacity instrument air blowing mask according to claim any one of 1-6, it is characterised in that the sanitary cover (3) side wall is provided with hole (4), and packing ring (5) is provided with the hole (4).
- A kind of 8. vital capacity instrument air blowing mask according to claim any one of 1-6, it is characterised in that the sanitary cover (3) side wall close to described blowing nozzle interface (1) one end is provided with thickened area (11).
- 9. a kind of vital capacity instrument air blowing mask according to claim 8, it is characterised in that thickened area (11) thickness is 0.07mm to 0.15mm.
- 10. a kind of vital capacity instrument air blowing mask according to claim 9, it is characterised in that the thickened area (11) is located at Between the outer wall of the gas delivery port (10) and the inwall of perforate (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621411506.2U CN206964629U (en) | 2016-12-20 | 2016-12-20 | A kind of vital capacity instrument air blowing mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621411506.2U CN206964629U (en) | 2016-12-20 | 2016-12-20 | A kind of vital capacity instrument air blowing mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206964629U true CN206964629U (en) | 2018-02-06 |
Family
ID=61414413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621411506.2U Expired - Fee Related CN206964629U (en) | 2016-12-20 | 2016-12-20 | A kind of vital capacity instrument air blowing mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206964629U (en) |
-
2016
- 2016-12-20 CN CN201621411506.2U patent/CN206964629U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180206 Termination date: 20181220 |