CN100566776C - Be used for the potent breath method of mouth mask and use the multi-functional mouth mask of this method - Google Patents
Be used for the potent breath method of mouth mask and use the multi-functional mouth mask of this method Download PDFInfo
- Publication number
- CN100566776C CN100566776C CNB2004100463601A CN200410046360A CN100566776C CN 100566776 C CN100566776 C CN 100566776C CN B2004100463601 A CNB2004100463601 A CN B2004100463601A CN 200410046360 A CN200410046360 A CN 200410046360A CN 100566776 C CN100566776 C CN 100566776C
- Authority
- CN
- China
- Prior art keywords
- filter course
- mouth mask
- duct ring
- mouth
- filter
- 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.)
- Expired - Fee Related
Links
- 0 *CC1C(C2)*2CC1 Chemical compound *CC1C(C2)*2CC1 0.000 description 1
Images
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The present invention relates to a kind of multi-functional mouth mask that is used for the potent breath method of mouth mask and uses this method.Big for solving existing mouth mask respiratory resistance, the problem that filter capacity is weak, it comprises filter course, frenulum, described filter course by the even filter course in the outside, inboard evenly filter course and the stereoscopic graticule that between two filter courses, is used to increase the effective filtration area of filter course form; Be equipped with in the perforate of inner filtration layer be positioned at mouth and nostril periphery be used to make the neighboring be adjacent to the duct ring of face or be used to make the neighboring to be adjacent to face and the closed duct ring of activity space is provided for mouth.Therefore, it has simple in structure, is easy to make, and is easy to use, and the effect filter area is big, and filter capacity is strong, and respiratory resistance is little, the anti-excellent performance that infects, and application is wide, and cost is low, the advantage that popularizing application prospect is wide.
Description
Technical field
The present invention relates to be used for the air filtration technology of human body respiration, particularly relate to a kind of multi-functional mouth mask that is used for the potent breath method of mouth mask and uses this method.
Background technology
Common in the past mouth mask is hereinafter to be referred as " common " type mouth mask, is to adopt gauze etc. to do filtering material, hereinafter to be referred as " soft " material.Mouth masks such as N95 type are the convex-surface type mouth masks, are to adopt relatively hard material such as activated carbon to do filter course hereinafter to be referred as " convex surface " type mouth mask, hereinafter to be referred as " firmly " material.
It is the key factor of this mouth mask strainability that mouth mask is selected which type of filtering material (material, structure, shape, density, thickness adsorption capacity etc.) for use.Air-breathing speed is another key factor to the pressure size that filter course produces to filter effect when wearing masks.Be again effectively prevent air-breathing not by filtering the closed performance problem that directly enters the mouth, hereinafter to be referred as " closed performance ".(physics) strainability and the effect of these 3 decision mouth masks.
People's pulmonary aspiration amount is basic definite.Wear masks when air-breathing, air-flow is inversely proportional to the pressure that mouth mask produced and the effective filtration area size of this mouth mask, and this pressure is big more to suck in the lung the more little inspiration germ virus etc. that is difficult for more of this pressure to germ virus etc. easily more.
The north that flue dust is many, when wearing the mouth mask of white winter, people can see on the mouth mask face in the outside, nostril the blackening of two places, and this " two places " is the effective filtration area of this mouth mask (no matter mouth mask has much), the about 3cm of this area
2If mouth mask has been worn tightly, this area also can dwindle, and mouth mask has been worn pine, more from pathogeny things such as mouth mask next door (mainly referring to nose two upper lateral parts) inspiration germ viruses.
Therefore, respiratory resistance and strainability are a pair of implacable contradiction in existing mouth mask, promptly if reduce respiratory resistance will corresponding reduction strainability, will corresponding increase filtration resistance if improve filter capacity.
Summary of the invention
The objective of the invention is to overcome the above-mentioned defective of prior art, provide a kind of respiratory resistance little, and the strong potent breath method that is used for mouth mask of filter capacity, the present invention also aims to provide the multi-functional mouth mask of this method of application.
For achieving the above object, to be used for the potent breath method of mouth mask be the effective filtration area that increases filter course by the mode that ventilative stereoscopic graticule supports filter course in the present invention.So design, the filter course that contacts with the stereoscopic graticule of breathing freely can both become effective filtering surface, thereby can be by increasing the advantage that filter area reduce respiratory resistance and improve filter capacity greatly.
For achieving the above object, the multi-functional mouth mask that the present invention uses this method comprises filter course, frenulum, and the stereoscopic graticule that described filter course increases the effective filtration area of filter course by the even filter course in the outside, inboard evenly filter course and being used between two filter courses is formed.Stereoscopic graticule also can be described as supporter.The porous stereoscopic graticule is better to the support effect of filter course.Its filter course both can be the activated carbon formula, also can be the common fabric formula.So design, the effective filtration area of mouth mask will increase greatly, promptly is not only the corresponding part of nostril and mouth, but the cover area that supporter supported.Comparing its effective filtration area with existing mouth mask increases greatly, and gas-permeable channels increases greatly, and when strengthening strainability relatively, respiratory resistance can not increase.
As optimization, be equipped with in the perforate of inner filtration layer be positioned at mouth and nostril periphery be used to make the neighboring be adjacent to the duct ring of face or be used to make the neighboring to be adjacent to face and the closed duct ring of activity space is provided for mouth.Former structure simply is convenient to implement, and the latter then security is stronger and be more convenient for setting up various functional parts.It also can be to comprise filter course, sealing trim ring or press strip, frenulum, described filter course divides the outside (evenly) filter course and inboard (evenly) filter course, edge between these two layers is the one of ining succession, this two interlayer has instrumentality, have on inboard (evenly) filter course interface is also arranged on " duct ring ", " duct ring ", interface is communicated with " device ", inboard filter course also have " cover ", outlet valve or exhalation vents also arranged on the filter course of the outside (evenly).Filter course, sealing trim ring or press strip, frenulum, described filter course divides the outside (evenly) filter course and inboard (evenly) filter course, edge between these two layers is the one of ining succession, this two interlayer has instrumentality, have on inboard (evenly) filter course interface is also arranged on " duct ring ", " duct ring ", interface is communicated with " device ", inboard filter course also have " cover ", outlet valve or exhalation vents also arranged on the filter course of the outside (evenly).The described outside (evenly) filter course and inboard (evenly) filter course can be done very big, can do as required need be so big, also can make filter course face not to the part face and make " mouth mask " of selecting breathe air direction face, also can be inboard filter course with the heat insulating material formed warmth retention property " mouth mask " of making, also available radiation proof material is done anti-radiation " mouth mask ", also can connect " cover ".The outside is filter course and inboard evenly filter course evenly; All the more thick nearby or all the more close from the nostril, otherwise at a distance mutually.The outside is filter course and inboard evenly filter course evenly; All the more thick nearby or all the more close from the nostril, otherwise at a distance mutually.Described " duct ring ", the even filter course in the outside, inboard evenly filter course, instrumentality are formed the method that enlarges effectively even filter area, also are the methods that enlarges filter capacity.The even filter course in the described outside, inboard evenly filter course, according to purposes and needs at select for use effectively even filter area or filtering material and other auxiliary material be at daily, medical, anti-SARS use with, sand control dust storm with, avian influenza-prevention, choice direction face is used, fire-fighting is used, gas defence is used, the ear heating is used, warming antifreeze frost prevention usefulness, and " mouth mask " used in cold district sleep etc.The even filter course in the described outside also has outlet valve or exhalation vents, and outlet valve or exhalation vents are on the outside filter course on the Unseal type " duct ring ", and expiration valve port or exhalation vents are towards ear, and hot gas blows to the ear heating.Interface is also arranged on described " duct ring ", and what interface connected " device " is the evenly interface on the filter course expiration valve port of the outside, and interface connects the device that utilizes waste gas, as: sterilizer etc.Described inboard filter course also has company's " cover ", as " cover of sleeping ", clothes " cover " etc.
As optimization, be used to the preferred hemisphere hull shape of closed duct ring that makes the neighboring be adjacent to face and activity space is provided for mouth, the top of this duct ring is equipped with and is led to outside unidirectional reverse-resistance type outlet valve, and the sidewall of this duct ring is equipped with the unidirectional reverse-resistance type inlet valve of two relative band pull bars that lead to instrumentality.Lead to the outside unidirectional reverse-resistance type outlet valve dirty gas that is used for outwards breathing out and can reduce to exhale institute's resistance, it also can be used for connecting other dirty gas disposal equipment or pipe special certainly.The unidirectional reverse-resistance type inlet valve of band pull bar can be used for opening and closing the filtering function of mouth mask.
" closed performance " of the effective filtration area of mouth mask and mouth mask, in mouth mask, invent and be provided with the effective filtration area that " duct ring " can enlarge mouth mask at double, just significantly improving filter capacity, is to wear " duct ring " type mouth mask can salute tens or hundreds of, several thousand, several ten thousand even more a plurality of " convex surface " type mouth mask or " common " type mouth mask.Under the preceding topic of practicality, " duct ring " type mouth mask is no matter have much, as long as ensure the closed performance of " duct ring " and can make the air-breathing pressure at each position of (make breathe air is unimpeded to be arrived) filter course the same relatively as far as possible, the area of this mouth mask is exactly an effective filtration area.Selected large size in the past " common " the type mouth mask of 30cm * 15cm to compare in order better to say something example." duct ring " type mouth mask effective filtration area of equal size is 30cm * 15cm (outside filter course area)+30cm * 15cm (inboard filter course area)-10cm * 5cm (area that " duct ring " is shared)=850cm
2These data, prior art do not accomplish that it is a lot of that " duct ring " type mouth mask also can surpass these data.
850cm
2÷ 3cm
2283 times of ≈, this is to wear the effective filtration area ratio of " duct ring " type mouth mask when wearing " common " type mouth mask, also be the ratio 283: 1 of the air-breathing pressure that mouth mask is produced, that is to say and wear " duct ring " type mouth mask ratio to wear ability such as the anti-SARS of " common " type mouth mask strong 283 times.Respiratory resistance when the resistance ratios when wearing the breathing of " duct ring " type mouth mask is simultaneously worn " common " type mouth mask is little 283 times.
The mode of " duct ring " type mouth mask with the material thickening (or encryption) of same filter effect, during amount of resistance when the unit are resistance being reached wear " common " type mouth mask, be 283 times * 283 times=80089 times, it is stronger more than 80,000 times than abilities such as the anti-SARS of " common " type mouth mask (disregarding under the situation of the bad problem of " closed performance " of " common " type mouth mask) to be " duct ring " type mouth mask.(should select for use suitable highdensity filtering material to reach this data, not so too thick.)
If the mouth mask of 16 layers of gauze has the thick words 0.5cm of 0.5cm * 80000 (doubly)=400 meter (thick gauze); The plain edition mouth mask of the 400 meters thick gauzes in " duct ring " type mouth mask top of 16 layers of gauze, if " common " type mouth mask of 16 layers of gauze wear in the SARS zone 4 hours can safety, " duct ring " type mouth mask of 16 layers is worn usefulness (4 hours * 80000 (doubly)=320000 hour, 24 hours ≈ of 320000 hours ÷ 13333 days, 365 days/year ≈ of 13333 days ÷ 36.5), but 36 years half safety.This just says that the existing SARS of " duct ring " type mouth mask is drawn onto outward needs in the mouth through 36 years half, and SARS etc. is dead already during this, wears " duct ring " type mouth mask and does not have infection SARS etc.
According to these data " duct ring " type mouth mask at selecting for use suitable filtering material to do filter course, can do that various uses of all kindsly varies in size, the space of the practical mouth mask of different-thickness is very big, special-purpose as health special use, medical special use, anti-SARS special use, anti-" human avian influenza ", gas defence is special-purpose, fire-fighting special use etc.
The filter area of " duct ring " type mouth mask can be done very big, and is big to can be in the head-shield, even on the whole body cover.Concerning mouth mask, filter efficiency improves, and it is meddlesome that respiratory resistance reduces.But there is so " duct ring " type mouth mask of big filter ability there is no need to do too big, done also inconvenience of work life too big, should select suitable size just according to actual needs.
The medial and lateral filter course of " duct ring " type mouth mask differs to establish a capital and makes filter course, can be as required some part not be allowed filtration, and this part adopts not filtering material or other material that needs to do.As at the moment object gas poisonous or that breathe out can influence reasons such as work or object when working, and can establish the place of waiting needs behind the brain to filter course when needing.
" common " type mouth mask is thickeied or is added density and arrives to a certain degree, the problem of SARS can appear advancing from the mouth mask next door, so the thickening or encrypt to a certain degree and can't add again, can not add how much thickness again if do not advance SARS from " next door ", because of effective filtration area too limited, thicken or add density and breathed too difficulty, respiratory resistance is too big.
Under equal frenulum pulling force " duct ring " to account for people's face long-pending more little, " closed performance " is good more relatively, because of the little pressure of contact area is big, " duct ring " of " duct ring " type mouth mask can design and account for area little " duct ring " relatively, " convex surface " type mouth mask is then opposite; To account for area big more with face, could enlarge effective filtration area.But people's face can utilize area too limited, and convex surface is protruded again, does not plainly say, work and study are all inconvenient.
According to the difference of the purposes of mouth mask, pattern, size, custom etc., the way of frenulum is also different.How frenulum is all right under the prerequisite of " closed performance " of guaranteeing " duct ring " for the frenulum of " duct ring " type mouth mask.The topmost task of frenulum of " duct ring " type mouth mask is that to draw " duct ring ", purpose be effectively to pin " closed performance " that " duct ring " guarantees " duct ring ".Other of frenulum " task " is to wear the cover of shutting up, and do not fall down, practical, attractive in appearance, convenient just.
Frenulum (below ear-lobe and nose also be on the center line of " duct ring " with the mouth centre) below ear-lobe on the favourable position draws " duct ring " of inboard filter course, guarantees that naturally " closed performance " is favourable.
" duct ring " type mouth mask of so how good condition (good measure) is arranged, and " closed performance " is better than its alloytype mouth mask, (" duct ring " type mouth mask compare other type mouth mask pine point wear also can).
" convex surface " type mouth mask relies on the way of the mouth mask of the relative large tracts of land of frenulum hard draw (referring to and the complete contact-making surface of user's face) that mouth mask is contacted fully with user's face, need big relatively Li Laila mouth mask, otherwise can not contact fully with user's face, the slit just occur.When air-breathing in this slit the air of inspiration be through filtering.The about 110cm of " convex surface " type mouth mask area
2About, " duct ring " type mouth mask effective filtration area that exemplifies previously is 850cm
2, 850cm
2÷ 110cm
27.73 times of ≈, " duct ring " type mouth mask is stronger 7.73 times than abilities such as the anti-SARSs of " convex surface " type mouth mask under the situation than effective filtration area.Littler 7.73 times with " duct ring " type mouth mask than " convex surface " type mouth mask respiratory resistance with a kind of filtering material, stack pile, employing is with a kind of filtering material, when the unit are resistance of " duct ring " type mouth mask is reached the resistance of wearing " convex surface " type mouth mask, 7.73 doubly * 7.73 times ≈ is 60 times, " duct ring " type mouth mask is stronger 60 times than the anti-SARS ability of " convex surface " type mouth mask under the equal resistance situation.
Air-breathing generation resistance when wearing masks breathing, the same resistance that produces during expiration." standard " type mouth mask that begins to mention only filters the air of inspiration, does not filter the air of exhalation; So the gas of breathing out does not have great resistance, alleviated nearly half resistance, when being increased to equal resistance again, filter capacity has increased doubly again, and " duct ring " type mouth mask also can increase area with " standard " type mouth mask, and it is very limited that " convex surface " type mouth mask increases area again.
Outlet valve (hole) is set on the filter course, is located at above the nostril and can alleviates respiratory resistance, by establishing outlet valve or the hole allows hot gas blow to the ear heating in the ear place.
The waste gas that outlet valve (mouth) ejects adds and utilizes exhaust device can utilize waste gas.
As optimization, be used to make duct ring that the neighboring is adjacent to face for annular or and the even filter course in the outside on unidirectional reverse-resistance type outlet valve is housed.Or and the meaning be meant that the special sheet of technology of back both can have, and can not have yet.The unidirectional reverse-resistance type outlet valve that is equipped with on the even filter course in the outside is used to provide exhalation passages and external other dirty gas disposal equipment.So design is simple in structure, and can make breathing free, unobstructed.
As optimization, be used to make the neighboring be adjacent to face and provide the oxygen channel that leads to outside band valve preferably is housed on the duct ring of activity space for mouth.So design can make it become breathing mask after closing filter course.
As optimization, unidirectional reverse-resistance type breather valve more preferably comprises the valve wall of being with through hole and the support that is installed on the valve wall, be fitted with pull bar on the support, the skin valve block that is used to seal through hole is equipped with at the two ends of pull bar, handles that pull bar can become unidirectional reverse-resistance type inlet valve unidirectional reverse-resistance type outlet valve or to returning conversion.Can set skin valve block user mode by the push-and-pull pull bar, promptly can enable the skin valve block and make unidirectional check (non-return) valve in running order, also can push away the old skin valve block of opening skin valve block and valve wall are broken away from, keep complete penetrating state.And the skin valve block that is used to seal through hole is equipped with at the two ends of pull bar, then can change the non-return direction of check (non-return) valve arbitrarily.So design can adapt to multiple environment for use, convenient effect.
As optimization, the version that filter course is preferably thickeied gradually or encrypted to air-breathing center from the edge.So design more can be optimized strainability and the relative respiratory resistance that reduces.
As optimization, it can also adopt the hood type structure that coats head or the hood type structure further connects whole body formula cage, life vest, disjunctor clothing again or sleep cover or mouth mask in exhalation passages further be communicated with head-shield or head-shield and cage, life vest, disjunctor clothing or the cover of sleeping in and the space between the human body; The communicator that red Warning Mark, the barb that is used to make things convenient for lifesaving, GPS locator can be housed on the head-shield, can send short messages.Gas and heat that the people breathes out, (very) needs to utilize sometimes, but some local profit is not used the utilization of should trying every possible means.As required " duct ring " type " mouth mask " add or connect the device that utilizes waste gas in addition can be on the exhaust gas utilization of breathing out.So design, red Warning Mark is as safety signs or lifesaving sign, and the GPS locator is used to indicate the orientation, and the short message communication device can conveniently be communicated by letter.
As optimization, also can further select following structure for use: unidirectional reverse-resistance type outlet valve further connects the infection air disinfection device; Unidirectional reverse-resistance type outlet valve further connects aerating device; Separation layer is set on filtering surface selectively, selects the direction of respiratory surface; In the even filter course in inboard, add the heat insulating material formed warmth retention property mouth mask of making; On filter course, introduce radiation proof material and make anti-radiation mouth mask or mask; The outside evenly filter course is introduced fire proofing and is made fire-fighting with mouth mask or mask; The outlet or the pneumostome of outlet valve are preferably placed at Liang Erchu; The breather pipe of even filter course in the outside and instrumentality in setting is passed; Inboard at the even filter course in inboard is provided with ventilation cushion.
So design, the outlet of outlet valve or pneumostome are preferably placed at two ear places can avoid the frost that occurs blocking sight line winter at the moment in severe cold, and in addition, the hot gas of exhalation also can be used for preventing the ear frostbite for the ear heating.Introducing unidirectional reverse-resistance type outlet valve further connects and infects air disinfection device and just can be used for SARS patient.Separation layer is set on filtering surface selectively, selects the direction of respiratory surface, then applicable special population.The breather pipe of even filter course in the outside and instrumentality then can be inboard filter course fresh air is provided in setting was passed.Inboard at the even filter course in inboard is provided with ventilation cushion, and the air that then helps between inboard filter course and the face upgrades.
" duct ring " type mouth mask is provided with the medial and lateral filter course, these two layers of edges be company person be one " pocket " of mouth (be seam), inboard filter course between these two filter courses is provided with " duct ring ", is arranged on the position of ways such as () stickups " duct ring " or when selecting " soft " material for use in this locational " duct ring " cover etc.It is empty (can liken is the bag mouth of this pocket) that " duct ring " position does not have filter course with interior part, is to leave nose and mouth for here, and the place of the breathing and the usefulness of speaking also is to be provided with instrumentality, can regulate the place of mouth mask thin and thick, is the place of regulating filter capacity.Instrumentality be between the filter course of medial and lateral or " duct ring " and outside filter course between the thickness, the filter capacity that leave the certain spacing effect and transfer spacing to regulate mouth mask, when selecting " soft " material for use, put or take out the instrumentality that thin and thick do not wait (as stereoscopic graticule etc.) into from " bag mouth ".Design not equal thickness instrumentality, required throughput and air is distributed on the filter course uniformly in the time of should considering not the equal thickness mouth mask does not preferably suffer the thing of mouth, and the thick middle thin edge is handsome in appearance in order to make, as: do not establish instrumentality on the slim nose.When selecting " firmly " material for use, be provided with between " duct ring " and the outside filter course: if any the bushing type pull bar of deciding tightness pull outward as required the elongation of how many pull bars of mouth mask what, it is how thick that mouth mask just becomes, to instead what shortening by how many pull bars of mouth mask inward, the mouth mask attenuation how much, is the instrumentality that can regulate the filter capacity of mouth mask at any time.
Instrumentality should ensure as required and leave suitable space between the filter course of medial and lateral, as (at this moment breathe air can not unimpededly go to filter to each position of filter course for adjustable approaching attractive in appearance at ordinary times, so reduce filter capacity relatively) to also thinner than " common " type mouth mask, (because of only establishing the thin outside filter course of one deck on the nose) but filter capacity still significantly improve than " common " type mouth mask, are the good mouth mask of practicality (cost are similar with " common " type mouth mask).Enter SARS zone etc., in the time of need enabling filtration, transfer " thick " mouth mask comprehensively, make that breathe air is unimpeded to be gone to filter to each position of two filter courses, inboard inboard architrave place of filtering can be lined with ventilating pad such as three-dimensional gauze pad as required in addition.According to the designing requirement of " duct ring " type mouth mask breathe air is directed on the filter course of medial and lateral uniformly; Transfer uniform way to adopt the thickening of part filter course or add the way of density etc., far and near breathe air is to the pressure difference that mouth mask produced from the nostril, and is all the more thick nearby or add density, otherwise more far away more.Main purpose makes air-breathing speed be evenly distributed on the filter course of medial and lateral the pressure that mouth mask produced, and makes each position can both play same filtration.
" duct ring " that be provided with in " duct ring " type mouth mask is a kind of " circle " or types such as " hemisphere " that can fasten nose and mouth, and " hemisphere " type has closed or net like.Be provided with inlet valve and outlet valve above enclosed " duct ring ", available iron or plastics etc. can be done the material of " duct ring " and do " duct ring " miscellaneous.As use plastics: way manufacturings " duct ring " such as available injection moulding.
Health is with doing " circle " on, the medical mask as with steel " silk " etc., " servo-actuated " type " circle " of the relative servo-actuated of chin when speaking is arranged and compare " no " with chin moving relative with can not move " not servo-actuated " type " circle " with chin, be similar " oblate " type or similar " side " type etc., frenulum place, a place " bolt " is respectively established on " oblate " type both sides; Frenulum place, two places " bolt " (fixed with material as required) can be respectively established on " side " type both sides.The position of nose etc. can adopt can bend moving, can appearance iron " silk " etc. do.Manufacture " circle " that can contact substantially with popular shape of face, user's control mirror or other people help to curve as far as possible fully can contact or manufacture with user's shape of face (mainly being bridge of the nose both sides) and are equipped with material cushion such as soft glue, Hai Jin in addition, make with faces such as noses can contact fully, the material that frenulum makes " closed performance " play airtight effect when drawing " duct ring " is done various " duct rings " as far as possible.As with plastic injection-moulded one-tenth " circle ", should be able to ensure under the prerequisite of closed performance and be designed to allow as far as possible with the servo-actuated of getting down from horse, as required also can be when selecting " firmly " material for use with the inboard filter course of the part size of opening one's mouth from shutting up to, do (as the glue of good springiness etc.) with filtering material not.As making " hemisphere " type closed " duct ring ", should use " closed performance " to play additional materials of airtight effect etc. (as soft rubber cushion etc.) and do closed " duct ring " of all kinds with plastics etc.
The mouth mask filter course selects for use " soft " when material is done, and can do various kinds " duct ring ".Here choosing a kind of " servo-actuated " type relatively wherein; " oblate " type " duct ring " is done example: select for use two " semicircle " shaped steel " silk " to do " duct ring ", have two places to arrange in pairs or groups mutually on every and connect into the place of " duct ring ", these two is that one is long and the other is short, long last, short down, with the chin servo-actuated.Part beyond one two long place connects is the place that mode " bolt " frenulums such as extension or cover are used, these two can be one by one the band place that sets up departments, the outside of past inboard filter course pierce into " duct ring " cover the inside, two " semicircle " types are mixed into " duct ring " inside, pass from the band of setting up departments of other end, this part that passes is that the frenulum below " bolt " ear is used, frenulum above the ear that helps out on " duct ring " type mouth mask can connect the suitable position, top of " semicircle " type " duct ring "." four corners " of mouth mask takes different measure to handle (as: the suitable place of frenulum can be hung or be connected to small-sized mouth mask) according to varying in size of mouth mask, with two " steel wires " make with ejector half " duct ring ", good with the shape of the mouth as one speaks servo-actuated performance of speaking, also can in " duct ring " cover, extract " duct ring ", can wash mouth mask like this, if mouth mask is out of use, " duct ring " can also use (because of good sterilization).
" standard " type mouth mask: be provided with closed " duct ring ", " duct ring " is provided with outlet valve and inlet valve, valve is by the pressure breakdown during the inside and outside generation of design " duct ring " pressure reduction, " duct ring " inside and outside differential pressure near the time under the elastic force effect valve self-return be closed, by valve control, only filter the air of inspiration.When air-breathing in " duct ring ", pressure is less than outside " duct ring ", under suction, if the one-way sucting valve of only opening inward is by breakdown, air enters the mouth by filter course, instrumentality, inlet valve, breathing process " duct ring " inside and outside differential pressure when finishing is approaching, and (return) elastic force effect that at this moment is provided with on the valve makes the inlet valve self-return, closes inlet valve.During expiration, " duct ring " internal pressure is only established outlet valve toward external-open by breakdown greater than outside " duct ring " under the breath pressure effect, and the exhaust outlet of the gas of exhalation by being connected with valve port is outside filter course filters directly the discharge mouth mask.Exhalation process outlet valve self-return when finishing is closed, inlet valve is located at the nose both sides, outlet valve is located under the nostril or is located at the position that needs as required, and it is air-breathing unimpeded being provided with certain spacing between " duct ring " and the outside filter course, as is provided with stereoscopic graticule etc.
The actual purpose that will solve of most in fact mouth masks is to filter the dust want in the suck air, germ etc., differ and establish a capital and to filter the air of breathing out once more one time, doing unnecessary (idle) filtration concerning this part mouth mask does not say, the residual thing that filters even contain germ, virus etc. and allow in the suction side again, " standard " type mouth does not filter the air of exhalation.
Also can alleviate nearly half resistance, when being increased to equal resistance filter course again, increase doubly again than " duct ring " type mouth mask filter capacity of not establishing closed " duct ring ".Design utilizes the exhaust outlet (can join two pipes together or joint etc. on mouthful) of waste gas as required.
The specific use mouth mask: " duct ring " type or " standard " type mouth mask are made mask type, hood type, clothes bell-type, mask formula etc., are called for short by " mouth mask etc. "." mouth mask etc. " are according to effective filtration area " common " type mouth mask not on year-on-year basis, filter capacity is also different, can make " mouth mask etc. " of various multiples as required, big multiple can be made hundreds of thousands doubly above " mouth mask etc. ", be equivalent to 2000 meters thick husky cloth " common " type mouth masks as 400,000 times " mouth masks etc. ", can do the waviness filter course in order on fixed area, to increase effective filtration area, adopt different as required in different occasions at selecting for use suitable filtering material to do " duct ring " type specific use " mouth mask etc. ".As:
1. gas defence special use: the material with the energy gas defence is done filter course, make " duct ring " type anti-poison respirator etc., be provided with the gas defence layer of making of the gas defence material (head-shield, cover for clothes etc.) or inboard filter course done gas defence layer " cover " with the gas defence material when protecting skin to need in addition in the inboard of inboard filter course; As head-shield, cover for clothes etc.
2. fire-fighting special use: do filter course with fire-retardant gas defence cloth etc., make " duct ring " type fire-fighting anti-poison respirator etc.
3. as required at selecting for use other filtering material that is fit to do " duct ring " type specific use " cover ".As the anti-SARS " cover " of " duct ring " type.
Above specific use mouth masks etc. are provided with damping device, goggles as required, listen hole, steam vent etc., can be closed " duct ring " in air-breathing valve port place, join two pipes together logical " duct ring " outer pneumatics pump, air tank, fine filter etc. lead in " duct ring " again.
" duct ring " type mouth mask of existing so many advantages and " standard " type mouth mask, the anti-SARS " cover " of " duct ring " type, at selecting suitable advanced technology filtering material etc. for use, being the mouth mask that surpasses prior art, is the advanced technology mouth mask of the anti-SARS of present physics mode etc.
Multi-functional mouth mask: be on the big filter course of respiratory resistance by it on the filter course of (" duct ring " type) mouth mask, if outlet valve (hole) (with the same principle of outlet valve on " duct ring "), can alleviate expiratory resistance, can be at the nostril lower position or can utilize hot gas ear in the winter heating of exhalation at the position of ear direction expiration valve opening towards ear (below become multi-functional mouth mask) as required, also can be provided with in the earmuff and exhale.
The mouth mask that is provided with closed " duct ring " arrives needed place to the air guide of breathing out; Other is provided with and utilizes the waste gas of breathing out on the thing, as utilize the hot gas of breathing out to warm oneself, the gas inflation that utilizing breathes out comes, the air degerm that utilizes the epidemic victim to breathe out to come, virus etc., can design the product of useless (heat) gas of the various utilization of many types, as earmuff, head-shield, clothing cover, the cover of sleeping, miniature tent, brucker survival capsule (bag), sterilizer, lung viability locomotory apparatus (lung capacity measuring instrument) etc., hereinafter to be referred as " cover " or " device ".
People are frozen hand constant practice usance and are exhaled heating to hand with the next hot gas of breathing out.In the winter of cold, from (giving up) hot gas that breathes out, be that so closely but profit is not used and suffered from cold when freezing ear.The exhaust outlet of " standard " type mouth mask is established towards ear, and can allow hot gas blow on the ear and warm oneself, or be connected with earmuff, ventilation in exhaust outlet and the earmuff, earmuff is provided with (can regulate big or small hole) and listens the hole, and listening a hole also is steam vent.Very the hot gas of cold day exhalation can freeze, and regulates (relatively) and concentrates exhaust just to be difficult for freeze (frost).
Be PLA soldier when in the open air standing guard, south poles scientific investigation personnel's etc. nose cup or mouth mask, hat brim, eyebrow etc. on all to overwork frost by it cold northern winter, even affect one's power of vision and also suffer from cold." standard " type mouth mask is selected inboard filter course for use heat insulating material formed (as woolen knitwear etc.) as required, also can make " duct ring " type face cover of the whole face of cover or head-shield etc., is provided with goggles as required, listens the hole, because of concentrated exhaust frost not easy to hang.Can also be warming, do not suffer from cold etc.
Sterilizer: " standard " type " mouth mask " exhaust outlet tracheae that runs in, pipe are provided with sterilizer (as with ways such as resistance wire high temperature heating) and the SARS in the air of breathing out etc. is destroyed (wearing usefulness for SARS patient and doubtful SARS patient) then and there exempt from SARS etc. and infect everywhere.
Lung viability locomotory apparatus, lung capacity measuring instrument: be connected to joint on the exhaust outlet of closed " duct ring ", be connected on the joint (the lattice tension force of having established rules) balloon (etc.), joint is provided with air bleeding valve, when the outlet valve return on " duct ring " is closed, be connected in " stay cord " on the outlet valve, devices such as electric shock are opened the locking device (office) of air bleeding valve, open air bleeding valve and put the interior gas of deflation ball, air bleeding valve is under the elastic force effect during return, latch is decided device, locking device pins air bleeding valve, repeating like this to temper the lung viability, is lung viability locomotory apparatus, and " duct ring " also can singly detain nose or mouth.
Ball inwall facing to joint is provided with hook, one of elastic force drag hook (being that the spring of certain specification pulling force or adhesive tape etc. are arranged) hangs on the ball inner hanging hook, the other end hangs on the lever that is provided with in the joint, and joint is provided with hole rod bar, and the outer bar of joint is a pointer, nipple orifice is that sealing cooperates with lever, be provided with sealing ring, about stuffiness ensures the interior activity of normal pointer range of lever, be connected with the lung capacity scale plate on the joint, this is the lung capacity measuring instrument.It is much that people are seeing that the lung capacity of oneself has, and has what are the today of seeing of target, see tomorrow again " length " (greatly) what, temper lung viability (also can by induced electricity, electronics display list etc. are arranged).
Brucker survival capsule (bag): sack such as ice bag mouth, but make of glue of good springiness etc., allow people wear the clothes well also to support big sack to enter the inside, sack is as using the ice bag clip, sack also can be translated into the inside folder bag mouth, the people who uses advance in the folder bag mouth, the people of the people outside of not using helps folder bag mouth outside, the people wears closed " duct ring " " mouth mask " (not having filter course) inside, be connected on air-breathing valve port and the expiration valve port, (the expiration pipe is provided with three-way valve for air-breathing pipe and expiration pipe, another all the bag in the water inlet go to the bag in the inflation, the air to close of substituting the bad for the good is dead) all be located at outside the output of the crown, this two pipe all has certain altitude on bag, for anti-rainwater or wave resistance water are sucked into or irritate, be provided with button red coloration isochrome above in addition (for the also available luminescent material of good discovery also can be found night, also can put the distress signal transmitter, locator etc.) plastic bottle such as ball-shaped, internal diameter is round, two mouths of pipe all are located at " ball " middle position, air-breathing " ball " bottle capacity is greater than lung capacity, air-breathing " bottle " is big in the bottle, expiration " bottle " is little, waste gas is inhaled by the province that not exchanges information, meet wind and waves water and can only enter " bottle " position down, because of the bottle upper air is accounting for, unrestrained water excessively is heavy naturally to be gone, air is come in naturally, also can usefulness such as " bottles " material of response make the lifesaving hook of the people being pulled out the water surface of living that can hold, the lifesaving personnel are aboard ship, helicopters etc. are gone up as long as entangle " bottle " with rope etc. (also can utilize magnetic property to overlap or with covers such as net) just can rescue the people." two manage " respectively is located at the ear next door, and managing the below respectively has (also can be provided with to be sucked into or to irritate the water bottle of the water that advances and be provided with the drainage arrangement of being controlled by valve and lead to outside the bag) frenulum to be set to the armpit place, is tied to form to make the people not hold in the palm.In frozen water, directly do not contact with frozen water, improve life condition, prolong survival ability, the design brucker survival capsule, in wind and waves, the people becomes the brucker survival capsule of roly-poly type (armpit is following as far as possible adorn less gas allowed sagging effect) inside as far as possible, the Liao Dynasty's prestige place is transparent, hand inside can be movable, the available handsets breath emergency etc. of sending short messages, and hand also can put in " sleeve bag " lining trip etc.Can walk in two leg cover " trousers pocket " linings.
Select following two kinds of ways as required for use on cover for clothes, sleep cover, the miniature tent etc.
First kind of way: " cover " ins succession with " duct ring ", is located at the inboard of inboard filter course, and be logical with exhaust outlet in " cover ", can establish steam vent at places such as " cover " belows.Second kind of way: exhaust outlet is connected to and establishes four way valve on the pipe, and in one logical " cover ", outside other end logical " cover ", the other end leads to adjusting hygroscope (because of the gas of breathing out wets) again; As adorn the transparent plastic bottle of the good hygroscopic agent of ventilation etc., in the bottle logical " cover ".Utilize valve control to regulate " cover " interior humidity by the air capacity of adjuster.When needing to regulate " cover " interior temperature, the gas of exhalation is effluxed or send in " cover " toward " cover " on demand.
Usefulness such as the south poles exploration personnel cover of sleeping; The people enters the inside and wears " standard " type " mouth mask " (also can not establish filter course), does not directly contact also adjustable cover temperature etc. with the cold wind that cuts to the bone with hot gas heating sleep.
Above product can be established the part filter course as required or not establish filter course, and " duct ring " also can singly detain nose, exhales in the also available mouth past " cover " etc., also can not establish valve on " duct ring ".On the scene of a fire, the first-class different occasions in poison gas field select for use different materials to do " mouth mask etc. ", top fire prevention, breathing mask with the strong hundreds of thousands of filter capacity comparable " common " type mouth mask doubly more than.Utilize mouth mask or connection to utilize exhaust device can utilize gas heating, inflation, sterilization of exhalation etc.It has daily, medical, anti-SARS with, avian influenza-prevention usefulness, and the sand prevention dust storm is warmed oneself with, ear with, gas defence with, fire-fighting and function such as used with, warming antifreeze frost prevention with, choice direction face.
After adopting technique scheme, mouth mask of the present invention has simple in structure, is easy to make, and is easy to use, and the effect filter area is big, and filter capacity is strong, and respiratory resistance is little, the anti-excellent performance that infects, and application is wide, and cost is low, the advantage that popularizing application prospect is wide.
Description of drawings
Fig. 1 is the structural representation of first kind of embodiment of the multi-functional mouth mask of the present invention;
Fig. 2 is the structural representation of second kind of embodiment of the multi-functional mouth mask of the present invention;
Fig. 3 is the structural representation of multi-functional the third embodiment of mouth mask of the present invention;
Fig. 4 is the sectional structure schematic diagram of the unidirectional check (non-return) valve of both sides band valve block in the multi-functional mouth mask of the present invention.
The specific embodiment
Do further explanation below in conjunction with accompanying drawing and instantiation:
Embodiment one, as shown in Figure 1, the multi-functional various mouth masks of the present invention comprise filter course, frenulum 5, and described filter course is made up of outside filter course 1, inboard filter course 2 and the instrumentality between two filter courses 3, and instrumentality 3 is the stereoscopic graticule of the effective filtration area that is used to increase filter course.Be equipped with in the perforate of inboard filter course 2 be positioned at mouth and nostril periphery be used to make the neighboring be adjacent to the annular duct ring 4 of face.Filter course adopts the version of thickening gradually to air-breathing center from the edge.
Embodiment two, shown in Fig. 2 and 4, the multi-functional various mouth masks of the present invention comprise filter course, frenulum 5, and described filter course is made up of outside filter course 1, inboard filter course 2 and the instrumentality between two filter courses 3, and instrumentality 3 is the stereoscopic graticule of the effective filtration area that is used to increase filter course.Be equipped with in the perforate of inboard filter course 2 be positioned at mouth and nostril periphery be used to make the neighboring be adjacent to the annular duct ring 4 of face.On the filter course 1 of the outside unidirectional reverse-resistance type breather valve 6 is housed.Unidirectional reverse-resistance type breather valve 6 comprises valve wall 6-1 that is with through hole and the support 6-2 that is installed on the valve wall 6-1, be fitted with pull bar 6-3 on the support 6-2, the skin valve block 6-4 that is used to seal through hole is equipped with at the two ends of pull bar 6-3, handles that pull bar 6-3 can become unidirectional reverse-resistance type outlet valve unidirectional reverse-resistance type inlet valve or to returning conversion.The breather pipe 7 of filter course and instrumentality 3 outside also being provided with in passing on the cover.In the inboard of inboard filter course ventilation cushion 8 is set.Filter course adopts the version of thickening gradually to air-breathing center from the edge.
Embodiment three, shown in Fig. 3 and 4, the multi-functional various mouth masks of the present invention comprise filter course, frenulum 5, and described filter course is made up of outside filter course 1, inboard filter course 2 and the instrumentality between two filter courses 3, and instrumentality 3 is the stereoscopic graticule of the effective filtration area that is used to increase filter course.The hemisphere hull shape duct ring 4 that makes the neighboring be adjacent to face and activity space is provided for mouth of being used to that is positioned at mouth and nostril periphery is housed in the perforate of inboard filter course 2.The top of this duct ring 4 is equipped with and is led to outside unidirectional reverse-resistance type outlet valve, and the unidirectional reverse-resistance type inlet valve of two relative band pull bars that lead to instrumentality 3 is housed on the sidewall of this duct ring 4.Unidirectional reverse-resistance type breather valve 6 more preferably comprises valve wall 6-1 that is with through hole and the support 6-2 that is installed on the valve wall 6-1, be fitted with pull bar 6-3 on the support 6-2, the skin valve block 6-4 that is used to seal through hole is equipped with at the two ends of pull bar 6-3, handles that pull bar 6-3 can become unidirectional reverse-resistance type inlet valve unidirectional reverse-resistance type outlet valve or to returning conversion.The oxygen channel 9 that leads to outside band valve is housed on the duct ring 4.The version that filter course is thickeied to air-breathing center gradually from the edge.The top of duct ring 4 is led to outside unidirectional reverse-resistance type outlet valve and is further connected dirty feed channel 10.
Claims (8)
1, a kind of potent breath method that is used for mouth mask, the mode by ventilative stereoscopic graticule support filter course that it is characterized in that increases the effective filtration area of filter course; The stereoscopic graticule that described filter course increases the effective filtration area of filter course by the even filter course in the outside, inboard evenly filter course and being used between two filter courses is formed; Be equipped with in the perforate of the inner filtration layer that stereoscopic graticule supports be positioned at mouth and nostril periphery be used to make the neighboring be adjacent to the duct ring of face or be used to make the neighboring to be adjacent to face and for mouth provides the closed duct ring of activity space, filter course is thickeied gradually to air-breathing center from the edge or encrypted.
2, be used to implement the multi-functional mouth mask of the inventive method, it is characterized in that comprising filter course, frenulum, the stereoscopic graticule that described filter course increases the effective filtration area of filter course by the even filter course in the outside, inboard evenly filter course and being used between two filter courses is formed; Be equipped with in the perforate of inboard evenly filter course be positioned at mouth and nostril periphery be used to make the neighboring be adjacent to the duct ring of face or be used to make the neighboring to be adjacent to face and the closed duct ring of activity space is provided for mouth; Filter course is thickeied gradually to air-breathing center from the edge or is encrypted.
3, according to the described multi-functional mouth mask of claim 2, it is characterized in that being used to the preferred hemisphere hull shape of closed duct ring that makes the neighboring be adjacent to face and activity space is provided for mouth, the top of this duct ring is equipped with and is led to outside unidirectional reverse-resistance type outlet valve, and the sidewall of this duct ring is equipped with the unidirectional reverse-resistance type inlet valve of two relative band pull bars that lead to instrumentality.
4,, it is characterized in that the duct ring that is used to make the neighboring be adjacent to face is an annular or/and unidirectional reverse-resistance type outlet valve is housed on the even filter course in the outside according to the described multi-functional mouth mask of claim 2.
5,, it is characterized in that being equipped with on the duct ring oxygen channel that leads to outside band valve according to the described multi-functional mouth mask of claim 3.
6, according to the described multi-functional mouth mask of claim 3, it is characterized in that unidirectional reverse-resistance type outlet valve and unidirectional reverse-resistance type inlet valve comprise the valve wall of being with through hole and the support that is installed on the valve wall, be fitted with pull bar on the support, the skin valve block that is used to seal through hole is equipped with at the two ends of pull bar, handles that pull bar can become unidirectional reverse-resistance type inlet valve unidirectional reverse-resistance type outlet valve or to returning conversion.
7,, it is characterized in that it can also adopt the hood type structure or the hood type structure that coat head further to connect whole body formula cage or life vest or disjunctor clothing again according to claim 2,3,4,5 or 6 described multi-functional mouth masks; Perhaps sleep the cover or mouth mask in exhalation passages further be communicated with head-shield or head-shield and cage or life vest or disjunctor clothing or sleep the cover in and human body between the space; Red Warning Mark can be housed on the head-shield and be used to make things convenient for the barb of lifesaving and GPS locator and the communicator that can send short messages.
8, according to claim 2,3,4,5 or 6 described multi-functional mouth masks, it is characterized in that also can further selecting following structure for use: unidirectional reverse-resistance type outlet valve further connects the infection air disinfection device; Unidirectional reverse-resistance type outlet valve further connects aerating device; Separation layer is set on filtering surface selectively, selects the direction of respiratory surface; In the even filter course in inboard, add the heat insulating material formed warmth retention property mouth mask of making; On filter course, introduce radiation proof material and make anti-radiation mouth mask or mask; The outside evenly filter course is introduced fire proofing and is made fire-fighting with mouth mask or mask; The outlet or the pneumostome of outlet valve are preferably placed at Liang Erchu; The breather pipe of even filter course in the outside and instrumentality in setting is passed; Inboard at the even filter course in inboard is provided with ventilation cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100463601A CN100566776C (en) | 2003-06-06 | 2004-06-07 | Be used for the potent breath method of mouth mask and use the multi-functional mouth mask of this method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03265028.0 | 2003-06-06 | ||
| CN03265028 | 2003-06-06 | ||
| CNB2004100463601A CN100566776C (en) | 2003-06-06 | 2004-06-07 | Be used for the potent breath method of mouth mask and use the multi-functional mouth mask of this method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1692963A CN1692963A (en) | 2005-11-09 |
| CN100566776C true CN100566776C (en) | 2009-12-09 |
Family
ID=35352202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100463601A Expired - Fee Related CN100566776C (en) | 2003-06-06 | 2004-06-07 | Be used for the potent breath method of mouth mask and use the multi-functional mouth mask of this method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100566776C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR112012016094A2 (en) * | 2009-12-30 | 2016-08-16 | 3M Innovative Properties Co | respirator with filtering facepiece having an auxetic mesh on the mask body |
| CN102429330A (en) * | 2011-12-08 | 2012-05-02 | 吴江云峰金属购件涂装有限公司 | Spray coating protective respirator |
| CN104190015B (en) * | 2014-09-16 | 2016-08-31 | 陈思敏 | The haze filter filtered with breather valve solid |
| CN105771111A (en) * | 2014-12-22 | 2016-07-20 | 王晓利 | Method for producing filtering structure for air respirator |
| CN108634443A (en) * | 2018-04-16 | 2018-10-12 | 新疆古纳斯维药科技有限公司 | A kind of process of novel oxygen inhalation gauze mask and the novel oxygen inhalation gauze mask of manufacture |
| TWI704939B (en) * | 2019-08-08 | 2020-09-21 | 黃幼芬 | Negative ion breathable mask |
-
2004
- 2004-06-07 CN CNB2004100463601A patent/CN100566776C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1692963A (en) | 2005-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11383107B2 (en) | Pathogen-filtering face mask with transparent mouth-covering portion and active air circulation | |
| US9364633B2 (en) | Exhaled vapor collection device | |
| CN111345524A (en) | An improved safety protective clothing | |
| CN100566776C (en) | Be used for the potent breath method of mouth mask and use the multi-functional mouth mask of this method | |
| CN111165945A (en) | Reusable disinfection mask | |
| WO2022036548A1 (en) | Fully encapsulating one-way circulation ventilation type protective clothing | |
| US20210307416A1 (en) | Herman level (4) disposable antiviral and antibacterial full head and shoulder hood | |
| CN207322760U (en) | A kind of non-woven fabric isolation clothes | |
| CN212395637U (en) | Micro-positive pressure self-suction filtering type escape respirator | |
| CN117859974A (en) | Novel human breathing heat energy recycling device and warm clothing | |
| CN211794490U (en) | Medical protective clothing | |
| CN109691709A (en) | A kind of mask and its application method with breather valve | |
| CN209422800U (en) | Assisted respirator is used in a kind of nursing of infectious hospital | |
| CN206214591U (en) | A kind of bellows breathing equipment with sealing cover body | |
| CN2724679Y (en) | Isolation-type positive pressure breathing oxygen-rich air helmet | |
| CN212464971U (en) | An improved safety protective clothing | |
| CN205903539U (en) | Grey haze nose cup is prevented in one -way filtration of expansion formula | |
| CN213486958U (en) | Cold protective clothing with face mask | |
| CN212117229U (en) | a medical protective suit | |
| CN212590498U (en) | A comfortable protective suit | |
| CN2704232Y (en) | Protective and isolated cap for patient of infectious disease | |
| CN213642878U (en) | Intelligent hood with high protection | |
| CN111743224B (en) | Clothes with protection function and physical defogging lenses | |
| CN213131657U (en) | Emergency escape breathing device | |
| CN210078529U (en) | Full-covering strong-sound laryngeal mask |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Taixian Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091209 Termination date: 20150607 |
|
| EXPY | Termination of patent right or utility model |