CN109480354A - Sealing element and respiratory interface device - Google Patents
Sealing element and respiratory interface device Download PDFInfo
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- CN109480354A CN109480354A CN201710807258.6A CN201710807258A CN109480354A CN 109480354 A CN109480354 A CN 109480354A CN 201710807258 A CN201710807258 A CN 201710807258A CN 109480354 A CN109480354 A CN 109480354A
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- sealing
- sealing element
- sealant
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- 238000007789 sealing Methods 0.000 title claims abstract description 154
- 230000000241 respiratory effect Effects 0.000 title claims abstract description 28
- 230000001815 facial effect Effects 0.000 claims abstract description 14
- 239000007933 dermal patch Substances 0.000 claims abstract description 4
- 239000000499 gel Substances 0.000 claims description 80
- 239000000565 sealant Substances 0.000 claims description 78
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 31
- 239000000017 hydrogel Substances 0.000 claims description 20
- 239000006260 foam Substances 0.000 claims description 16
- 239000004814 polyurethane Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 14
- 239000000741 silica gel Substances 0.000 claims description 13
- 229910002027 silica gel Inorganic materials 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 229920002635 polyurethane Polymers 0.000 claims description 11
- 239000000377 silicon dioxide Substances 0.000 claims description 9
- 230000035515 penetration Effects 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 5
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 5
- 229920001169 thermoplastic Polymers 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 claims description 4
- 238000007731 hot pressing Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims 1
- 230000003444 anaesthetic effect Effects 0.000 claims 1
- 229910001882 dioxygen Inorganic materials 0.000 claims 1
- 230000005489 elastic deformation Effects 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 22
- 101100269850 Caenorhabditis elegans mask-1 gene Proteins 0.000 description 13
- 210000003128 head Anatomy 0.000 description 6
- 239000004745 nonwoven fabric Substances 0.000 description 6
- 230000003139 buffering effect Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005187 foaming Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229920000615 alginic acid Polymers 0.000 description 3
- 235000010443 alginic acid Nutrition 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 229920002521 macromolecule Polymers 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002086 nanomaterial Substances 0.000 description 3
- 229920004482 WACKER® Polymers 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- -1 polysiloxane Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
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- 238000012360 testing method Methods 0.000 description 2
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 208000035473 Communicable disease Diseases 0.000 description 1
- 241000628997 Flos Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229920000079 Memory foam Polymers 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229940072056 alginate Drugs 0.000 description 1
- 239000003994 anesthetic gas Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 231100000263 cytotoxicity test Toxicity 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000008210 memory foam Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 210000004894 snout Anatomy 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1161—Means for fastening to the user's head
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2500/00—Materials for garments
- A41D2500/50—Synthetic resins or rubbers
- A41D2500/52—Synthetic resins or rubbers in sheet form
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The present invention relates to a kind of sealing element and respiratory interface devices, the sealing element is used to be configured in the cover of respiratory interface device, the sealing element is in the closed loop configuration of central opening, the two sides of the sealing element are symmetrical about a vertical plane, the sealing element is elastic sealing element so that the profile that the facial skin patch for being configured in respiratory interface device Shi Nengyu wearer is touched and elastic deformation occurs to match wearer's face skin, realizes dynamic sealing.Above-mentioned sealing element, using three-dimensional loop-like structure, when respiratory interface device is worn, sealing element and the facial skin of wearer, which closely paste, to be touched and elastic deformation occurs, to match the profile of wearer's face skin, to realize dynamic sealing, the respiratory interface device overall structure configured with the sealing element is simple, good seal performance, and comfortable wearing is not in the sense of discomfort due to caused by wear time length.
Description
Technical field
The present invention relates to articles field is worn, more particularly to a kind of sealing element and respiratory interface device.
Background technique
Currently, the breathing interface equipment occurred in the market is many kinds of, function and application place is also had nothing in common with each other, such as medical
Mask, mask with mistake air filtering function etc..Medical mask is widely used in the mistake that oxygen or anesthetic gases are conveyed to patient
Cheng Zhong, but the generally existing air-tightness of existing medical mask is undesirable, wears bring uncomfortable problem to wearer for a long time.Mouthful
Cover plays a significant role people's prevention by airborne communicable disease, filtering dust and certain pernicious gases etc.,
Existing mask will form gap when wearing, and whole leakproofness is poor, affects the protection effect of mask, mask also
Liner is set on the inside of plastic skeleton to eliminate gap, but its structure is complex, and sealing effect is bad, long periods of wear can shadow
Ring comfort level.The problem of generally existing air-tightness of existing breathing interface equipment and wear comfort.
Summary of the invention
Based on this, it is necessary to provide sealing element and the breathing interface of a kind of simple structure, good seal performance and comfortable wearing
Device.
A kind of sealing element, for being configured in the cover of respiratory interface device, the sealing element is closed in central opening
The two sides of ring structure, the sealing element are symmetrical about a vertical plane, and the sealing element is that elastic sealing element is exhaled so as to be configured in
The facial skin patch for inhaling interface device Shi Nengyu wearer is touched and elastic deformation occurs to match the profile of wearer's face skin,
Realize dynamic sealing.
In one of the embodiments, the sealing element include connect with the cover and hollow sealant and package it is close
Foam silica gel or the polyurethane sponge being enclosed in the sealant.
The sealing element includes: in one of the embodiments,
First sealing, including being suitable for sealing the recess portion of wearer's bridge of the nose contact zone and being connected to the suitable of the recess portion two sides
Lug boss in the contact zone of sealing wearer's nose two sides, the thickness of the recess portion are less than the thickness of the lug boss；
Second sealing extends along first sealing two sides, and for sealing wearer mouthful, nose two sides face connects
Touch area；
Third sealing is connected between the second sealing of the two sides, for seal wearer's lower lip or less or under
The skin of the contact zone at bar position.
The thickness of the sealing element is from first sealing to the third sealing in one of the embodiments,
Direction gradually becomes smaller.
In one of the embodiments, the sealing element include connect with the cover and hollow sealant and package it is close
The gel section and porous portion being enclosed in the sealant.
The sealant includes the first sealant and the second sealant, second sealing in one of the embodiments,
The front of layer is connected to the back side of the cover, the both ends of first sealant in the width direction and second sealant
The back side connects so as to be formed between second sealant and first sealant for accommodating the gel section and porous portion
Sealing space, the respiratory interface device wear when described in the first sealant and the facial skin of wearer patch touch.
First sealant passes through hot pressing, ultrasonic bonding or high frequency welding and institute in one of the embodiments,
It states the connection of the second sealant and forms edge seal at the edge of first sealant and second sealant to incite somebody to action
The gel section and porous portion are completely encapsulated in the sealing space, and second sealant passes through binder or supersonic welding
It is connected to the back side of the cover in succession.
First sealant and second sealant are that thermoplastic polymer is thin in one of the embodiments,
Film.
The thermoplastic polymer film is TPU film in one of the embodiments,.
In one of the embodiments, the TPU film with a thickness of 0.03mm~0.2mm, shore hardness be 30HA~
100HA, ultimate tensile strength are 6000PSI~12000PSI, and ultimate elongation rate is 300%~800%.
First sealant is the composite layer that top fabric woven and TPU film are compounded to form in one of the embodiments,
The respiratory interface device facial skin of the top fabric woven and wearer patch touching when wearing.
The gel section is Silica hydrogel in one of the embodiments, and the cone penetration of the Silica hydrogel is 40~150, is drawn
Stretching intensity is 0.2MPa~1MPa.
The gel section is polyurethane gle in one of the embodiments, and the cone penetration of the polyurethane gle is 40
~150, tensile strength is 0.2MPa~1MPa.
The gel section is hydrogel in one of the embodiments, and the cone penetration of the hydrogel is 40~150, is drawn
Stretching intensity is 0.2MPa~5MPa.
The compressive recovery rate of the gel section is 100% in one of the embodiments, and compression rebound rate is 6mm/s
To 40mm/s.
The compression rebound rate of the gel section is greater than 20mm/s in one of the embodiments,.
In one of the embodiments, the porous portion include polyurethane sponge, EVA sponge, in foam silica gel at least
It is a kind of.
The gel section and the porous portion are stacked and are formed in the sealant in one of the embodiments,
Double-layer structure, the porous portion are located at close to the side of the respiratory interface device.
The thickness of the gel section is less than or equal to the thickness of the porous portion, and institute in one of the embodiments,
The thickness ratio of the thickness and the porous portion of stating gel section is 1:10~1:1.
The thickness of the gel section and the thickness ratio of the porous portion are 1:3~1:1 in one of the embodiments,.
The thickness of the gel section is greater than the thickness of the porous portion, and the gel in one of the embodiments,
The thickness in portion and the thickness ratio of the porous portion are 1:1~3:1.
The gel section and the porous portion are segmentation structure in one of the embodiments, the two of the gel section
End is connected with the both ends of the porous portion respectively.
The gel section is set to first sealing in one of the embodiments, and the porous portion is set to institute
It states the second sealing and third sealing or the gel section is set to first sealing and the second sealing, it is described
Porous portion is set to the third sealing.
A kind of respiratory interface device, including above-mentioned sealing element.
Above-mentioned sealing element, using three-dimensional loop-like structure, when respiratory interface device is worn, sealing element and wearer's
Facial skin closely pastes to touch and elastic deformation occurs, to realize dynamic sealing, is matched with matching the profile of wearer's face skin
The respiratory interface device overall structure for being equipped with the sealing element is simple, good seal performance, and comfortable wearing, is not in due to wearing
Wear sense of discomfort caused by time length.
Detailed description of the invention
Fig. 1 is the expanded schematic diagram for the mask that an embodiment provides；
Fig. 2 is the schematic perspective view of sealing element in mask shown in Fig. 1；
Fig. 3 is the enlarged diagram of sealing element in mask shown in Fig. 1；
Fig. 4 is the partial sectional view of sealing element in mask shown in Fig. 1；
Fig. 5 is the partial sectional view using the sealing element of double-layer structure；
Fig. 6 is simple schematic diagram when mask shown in Fig. 1 is worn；
Fig. 7 is the simple schematic diagram of another angle when mask shown in Fig. 1 is worn.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give better embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose of providing these embodiments is that making to understand more the disclosure
Add thorough and comprehensive.
It should be noted that it can be directly to separately when an element is considered as " connection " another element
One element may be simultaneously present centering elements.Term as used herein "vertical", "horizontal", "left" and "right"
And similar statement is for illustrative purposes only, is not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one or more
Any and all combinations of relevant listed item.
Fig. 1, Fig. 2 are please referred to, sealing element 20 is provided according to an embodiment, is used to be configured in the cover of respiratory interface device
On body 10, respiratory interface device can with but be not limited only to be medical oronasal mask, mask for filtering air, as shown in Fig. 2, close
Sealing 20 is arranged on the cover 10 of mask 1, and in 10 dorsal edge of cover or close to edge, the mask is close when wearing for such as setting
Sealing 20 and the facial skin of wearer, which paste, to be touched, and is described by taking the mask 1 as an example below.
For filtering air, cover 10 can use various structures to the cover 10 of mask 1, such as with multi-layer nonwoven fabrics
Cover, as shown in fig. 6, being also possible to be connected with cover or the cover 10 of outer cover 11 in the outermost layer of multi-layer nonwoven fabrics to set
There is the flexible shell of filter layer.The two sides of cover 10 are symmetrical about a vertical plane (not shown).Sealing element 20 is arranged in cover 10
The back side, the closed loop configuration being open centered on sealing element 20, bullet occurs for generally three-dimensional structure, and have high resiliency
Property deformation after can restore to the original state within a short period of time, the two sides of sealing element 20 are symmetrical about vertical plane, mask 1 wear when, this is close
Sealing 20 and the facial skin of wearer, which closely paste, to be touched and elastic deformation occurs, to match the profile of wearer's face skin, from
And realize dynamic sealing.1 overall structure of mask is simple, good seal performance, and comfortable wearing, be not in as traditional mask by
The problem of sense of discomfort caused by wear time length.
In one embodiment, cover 10 uses the structure of multi-layer nonwoven fabrics, and sealing element 20 is connected in the multi-layer nonwoven fabrics
On the outermost non-woven fabrics in the back side, cover 10 is formed with folding line 102 in centre, the folding line 102 and above-mentioned vertical plane phase
Be overlapped, the two sides of cover 10 can along the folding line 102 towards the side doubling towards wearer together.
The opposite two sides of outer cover 11 are symmetrically connected with bandage 30, can wear mask 1 by bandage 30 and head and make
Sealing element 20 is close to wearer's face skin.As shown in Figure 6, Figure 7, in one embodiment, cover 10 further includes being arranged more
The layer positive outer cover 11 of non-woven fabrics, the outer cover 11 offer multiple air holes, and the two sides of outer cover 11 can be with cover 10 along above-mentioned folding
102 doubling of trace and close up, bandage 30 is extended to form from the opposite two sides of outer cover 11, i.e., bandage is structure as a whole with outer cover.Cover
10 are additionally provided with outlet valve (not shown), to reduce expiratory resistance.When respiratory interface device is medical oronasal mask, bandage uses it
His structure, such as the elastic bands of elastomeric overmold wearer's head.
Cover 10 can also use other structures, and as using the cover 10 in industrial mask 1, such mask 1 is worn
Time is longer, and cover 10 includes flexible shell and filter layer, and flexible shell offers at least one through-hole, and through hole is equipped with and is used for
The filter layer of air filtering is crossed, the reverse side of flexible shell is formed with the accommodation space for accommodating wearer's snout, sealing
The medial surface of the flexible shell is arranged in part 20.
It is close in conjunction with surrounding a socket 211 among sealing element 20 in one embodiment to Fig. 3, Fig. 6 and Fig. 7 refering to fig. 1
Sealing 20 includes the first sealing 201, the second sealing 202 and third sealing 203.First sealing 201 includes recess portion
2012 and it is connected to the lug bosses 2011 of 2012 two sides of recess portion, recess portion 2012 is bent towards the direction far from wearer, recess portion 2012
Suitable for sealing wearer's bridge of the nose contact zone, lug boss 2011 is suitable for sealing the contact zone of wearer's nose two sides, lug boss 2011
It is bent towards the direction of wearer, the thickness of recess portion 2012 is less than the thickness of lug boss 2011.Second sealant 230 is worn for sealing
Wearer mouthful, nose two sides face contact zone.Third sealing 203 is connected between the second sealing 202 of two sides, for pair
Below wearer's lower lip or the skin of the contact zone at chin position.The whole thickness change of sealing element 20 are as follows: from the first sealing
The direction of 201 to the second sealings 202 gradually becomes smaller.
Fig. 1, Fig. 4 are please referred to, in one embodiment, sealing element 20 includes connecting with cover 10 and hollow sealant 200
And obturator 220 of the environmental sealing in sealant 200.Sealant 200 includes the first sealant 210 and the second sealant 230,
The front of second sealant 230 is connected to the back side of cover 10.First 210 layers of sealant both ends in the width direction and second close
The back side of sealing 230 connects, and makes in formation between the second sealant 230 and the first sealant 210 for accommodating obturator 220
Sealing space.
First sealant 210 can be welded by hot pressing, ultrasonic bonding or high frequency and be connect with the second sealant 230,
Second sealant 230 can be by binder or ultrasonic wave connection in the back side of cover 10.
When mask 1 is worn, because the first sealant 210 is directly contacted with the facial skin of wearer, the first sealant 210
Material used can be by cytotoxicity test, preferably, and the first sealant 210 can be tested by bio-compatibility.Obturator
220 use low-density, soft, the buffering material of low elastic modulus, high rebound characteristics, and elasticity occurs in 220 stress of obturator
The profile that wearer's nose can be matched when deformation, realizes the function of dynamic sealing, can effectively lower when wearing mask 1 in nose bridge
Generate the risk leaked out.
Identical material can be used in first sealant 210 and the second sealant 230, and it is thin to be such as all made of thermoplastic polymer
Film, together by hot pressing, ultrasonic bonding or high frequency solder bond, the first sealant 210 is in local width for the two membranes
The both ends in direction form edge seal 240, obturator 220 are completely encapsulated in sealing space, the edge seal 240
Width may be configured as 0.1mm~5mm.In one embodiment, the first sealant 210 and the second sealant 230 are all made of TPU
Film, the characteristic that TPU film has high intensity, high tenacity, high-elongation, tear resistance excellent and ageing-resistant are environmental protection
Material.In one embodiment, TPU film with a thickness of 0.03mm~0.2mm, shore hardness is 30HA~100HA, and the limit is drawn
Stretching intensity is 6000PSI~12000PSI, and ultimate elongation rate is about 300%~800%.
Different materials can also be used in first sealant 210 and the second sealant 230, for example, the first sealant 210 uses table
The composite layer that layer fabric and TPU film thermal-adhering are formed, when mask 1 is worn, the top fabric woven of the first sealant 210 and wearer
Facial skin directly contact；Second sealant 230 uses TPU film, and the second sealant 230 passes through binder or supersonic welding
It connects technique and is permanently bonded to 10 back side of cover.Its advantages: (1) fabric and skin contact are more comfortable, individual with using
The structure of TPU membrane is compared, gas permeability, oil suction, in terms of performance have apparent advantage；(2) water-fastness, this is close
Sealing can be cleaned multiple times for a long time, prolong its service life；(3) preferably protection, tear-proof, anti scuffing are provided to obturator
Performance be better than individual TPU film structure.
It is appreciated that obturator 220 can also use the structure of full gel, i.e., all wrap up in sealant containing gel
Gel section, as shown in Figure 4；Obturator 220 is also possible to include the foam silica gel or polyurethane sponge being sealed in sealant, i.e.,
Filling has the porous portion of porous structure in sealant；The knot of gel section and porous portion mixing setting can also be used in obturator 220
Structure, for example, that is, gel layer and porous layer are to be stacked using double-layer structure；Or using the structure for being segmented laying, i.e. gel
Portion and porous portion are divided into two sections or the sequentially connected structure of multistage head and the tail in sealant.
In one embodiment, obturator 220 using two-component Silica hydrogel, be molded by raw material by being heating and curing and
At.The hardness of the obturator 220 is indicated by cone penetration (index for measuring grease consistency and soft or hard degree), using GB/T
269-1991 testing standard is tested using 1/4 ratio cone, and the cone penetration of the obturator 220 is 40~150；Other indexs: it draws
Stretch intensity be 0.2MPa~1MPa, compressive recovery rate 100%, compression rebound rate: 6mm/s~40mm/s, in an embodiment
In, rebound rate is greater than 20mm/s；Above-mentioned Silica hydrogel mainly includes the raw material of two kinds of components of A, B, and component A main component is poly-
Type siloxane liquid, it is common such as methyl or vinyl polysiloxane or phenyl polysiloxane, B component be hydrogen containing siloxane and
Added with Pt catalyst, when component A and B component by certain volume ratio after mixing, two kinds of groups of A, B at a certain temperature
The material divided occurs part cross-linking reaction and solidifies, and forms the soft class elastomeric material of gelled (solid-liquid state).A
The viscosity of component and B component about 700mPas~3500mPas, the volume ratio of both component A, B component are 0.5:1~1.5:1.
In another embodiment, obturator 220 uses PU gel (polyurethane gle), is tested and is marked using GB/T269-1991
Standard is tested using 1/4 ratio cone, and the cone penetration of the obturator 220 is 40~150；Other indexs: tensile strength 0.2MPa
~1MPa, compressive recovery rate 100%, compression rebound rate are 6mm/s~40mm/s, and in one embodiment, rebound rate is big
In 20mm/s.
In another embodiment, obturator 220 is using high-intensitive hydrogel, using GB/T 269-1991 testing standard,
It is tested using 1/4 ratio cone, the cone penetration of the obturator 220 is 40~150；Other indexs: tensile strength be 0.2MPa~
5MPa, compressive recovery rate 100%, compression rebound rate are 6mm/s~40mm/s.In one embodiment, rebound rate is big
In 20mm/s and it is less than or equal to 40mm/s.The content of water about 80%~90% in the hydrogel, in one embodiment, water-setting
Glue uses high-intensitive, superabsorbent water macromolecule hydrogel, includes nano material and height with reactive functional groups in hydrogel
Strand, using the secondary or physical bond active force between nano material and macromolecular chain, such as hydrogen bond or hydrophobic effect or electrostatic phase interaction
With etc. prepare the hydrogel, by the nano-material surface graft polymer chain with reactive functional groups, obtain macromolecule water
Gel, the macromolecule hydrogel have high intensity, soft, self-repair function.
It include polyacrylamide and alginates, the quality of polyacrylamide and alginates in hydrogel in a real mode
Than being about 1:1~12:1, preferred range is 4:1~10:1, and the two, which combines, under certain condition forms complicated three dimensional intersection
Network structure is resistant to high-intensitive stretching, forms weak ionic bond between the Alginate molecules in gel, and capture the calcium in water from
Son, when gel is stretched, these ionic bonds are opened, while discharging calcium ion, this process is reversible.
In other embodiments, obturator 220 is including but not limited to passed through in advance using the buffering material with porous structure
Closed pore made of die cavity foaming or the foam silica gel or polyurethane sponge of aperture.
Referring to Fig. 5, in one embodiment, obturator 300 uses double-layer structure, obturator 300 include gel section 302 and
Porous portion 301, porous portion 301 are located at close to the side of cover 10, and gel section 302 is located remotely from the side of cover 10.Gel section
302 can be used the gel in above-described embodiment, density range: 0.8g/cm3~0.99g/cm3；First sealant when mask 1 is worn
210 touch with wearer's face skin paste, and the compression of wearer's face contoured skin acts on this by the first sealant 210 and coagulates
In glue portion 302；Porous portion 301 is made of the buffering material with porous structure, and density is less than 0.5g/cm3, optional material packet
It includes but is not limited only to PU sponge, EVA sponge or foam silica gel through aperture made of die cavity foaming or closed pore in advance, porous portion
301 and gel section 302 form double-layer structure in sealant 200.In one embodiment, the thickness of gel section 302 be less than etc.
In the thickness of porous portion 301, the thickness ratio of gel section 302 and porous portion 301 is 1:10~1:1, for example, positioned at 1:3~1:1 it
Between.In another embodiment, the thickness of gel section 302 is slightly larger than the thickness of porous portion 301, gel section 302 and porous portion 301
Thickness ratio be 1:1~3:1.
In a specific embodiment, the use of porous portion 301 is foamed through die cavity and the PU of manufactured aperture or closed pore is extra large
Silk floss, density 0.05g/cm3~0.2g/cm3, it is preferred that use density for 0.07g/cm3~0.15g/cm3Low resilience memory
The thickness of sponge, gel section 302 and porous portion 301 is than about 1:1, the compression of wearer's face contoured skin when mask 1 is worn
It is acted on the gel section 302 by the first sealant 210, while compression is transferred to the porous portion of 302 lower section of gel section
301, and porous portion 301 is made to generate deformation.Low resilience memory foam can effective dispersive stress, and it is sensitive to compression, can pass through
It deforms to match the profile of wearer's face；And the characteristic that gel section 302 has aforementioned soft, quickly springs back, the knot of the two
It closes and can guarantee effective sealing, and can effectively disperse pressure, preferably match the profile of patient, promote the comfort level of wearing
And suitability.Simultaneously as porous portion is lower than 0.2g/cm using density3PU sponge, density is only the 1/ of gel section density
5~1/4, relative to all schemes made of gel, the weight of sealing element 20 can reduce by 40%~50%, make to wear lighter
It is full of, comfortably, the cost of manufacture can also be reduced.
In another specific embodiment, porous portion is used through die cavity foaming and the foam silicon of manufactured aperture or closed pore
Glue, the density after vulcanization are 0.3g/cm3~0.5g/cm3, for example, wacker can be selectedSC870 is bis-
Component foam silica gel material, is molded into density 0.35gcm after die cavity foams3~0.4g/cm3Closed-cell foam silica gel, have it is low
Hardness (Shore A 8~12), the characteristic of high resiliency, low compressive deformation；Several gels above-mentioned may be selected in gel section, optimal
It is selection Silica hydrogel, such as wacker SILGEL 612 A&B, density 0.97g/cm3, there is stronger connect between foam silica gel
Put forth effort；Gel section 302 and the thickness of porous portion 301 are than about 1:1.Closed-cell foam silicon rubber has ideal soft, quickly returns
The characteristic of bullet, cooperation soft, high efficiency buffer and the Silica hydrogel with skin contact comfort, can effectively disperse pressure, preferably
The profile for matching wearer, promotes the comfort level and suitability of wearing, and can suitably reduce the mechanical performance index of Silica hydrogel (such as
High rebound characteristics, because foam silica gel has high rebound characteristics)；Simultaneously as the density of foam silica gel is only gel section density
1/3~1/2, relative to all structures made of gel, the weight of sealing element 20 can reduce by 20%~25%, make to wear
It is slimmer and more graceful, comfortable.
The averag density, overall weight, cost of obturator 300 can not only be reduced using this double-layer structure, and porous
Portion 301 additionally provides additional buffer function, can promote the whole buffering of obturator 300 and/or compression resilience, improve mask
1 leakproofness and comfort, compared with using the structure of pure porous portion 301, surface layer is gel section 302, and contact skin is more easypro
It is suitable.
As shown in figs. 3 and 5, in one embodiment, obturator 300 is the knot of 301 segmented of gel section 302 and porous portion
Structure is provided with a gel section 302 and a porous portion 301, also, the head and the tail two of the gel section 302 in sealant 200
End is connect with the head and the tail both ends of porous portion 301 respectively, and gel section 302 can be used the material in above-described embodiment, porous portion 301 by
Buffering material with porous structure is made, and density is less than 0.5g/cm3, optional material includes but are not limited to pass through in advance
Closed pore made of die cavity foaming or PU sponge, EVA sponge or the foam silica gel of aperture.Between gel section 302 and porous portion 301
Joining place be not present difference in height, the two joining place is nature transition, gel section 302 due to certain mobility, so
Some flows to porous portion 301 at the head and the tail both ends of gel section 302, and is formed as one after solidifying with porous portion 301.?
In one embodiment, gel section 302 is set to the first sealing 201, and porous portion 301 is arranged in the second sealing 202 and third
Sealing 203.In another embodiment, gel section 302 is set to the first sealing 201 and the second sealing 202, porous portion
301 are set to third sealing 203.Using this structure, the weight of sealing element on the one hand can be reduced, reduces production cost,
On the other hand, it can guarantee effective sealing in the part filled by gel section 302, especially in nose bridge, and by porous portion 301
The comfort of skin contact when the part of filling can effectively promote wearing.
Above-mentioned sealing element, using three-dimensional loop-like structure, when respiratory interface device is worn, sealing element and wearer's
Facial skin closely pastes to touch and elastic deformation occurs, to realize dynamic sealing, is matched with matching the profile of wearer's face skin
The respiratory interface device overall structure for being equipped with the sealing element is simple, good seal performance, and comfortable wearing, is not in due to wearing
Wear sense of discomfort caused by time length.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (25)
1. a kind of sealing element, for being configured in the dorsal edge of the cover of respiratory interface device or close to edge, feature
It is, the sealing element is in the closed loop configuration of central opening, and the two sides of the sealing element are symmetrical about a vertical plane, the sealing
Part is elastic sealing element so that the facial skin patch for being configured in respiratory interface device Shi Nengyu wearer is touched and elastic shape occurs
Become to match the profile of wearer's face skin, realizes dynamic sealing.
2. sealing element according to claim 1, which is characterized in that the sealing element includes connecting with the cover and hollow
Foam silica gel or polyurethane sponge in the sealant of sealant and environmental sealing.
3. sealing element according to claim 1, which is characterized in that the sealing element includes:
First sealing, including be suitable for seal wearer's bridge of the nose contact zone recess portion and be connected to the recess portion two sides be suitable for it is close
The lug boss of the contact zone of wearer's nose two sides is sealed, the thickness of the recess portion is less than the thickness of the lug boss；
Second sealing extends along first sealing two sides, for sealing the contact of wearer mouthful, nose two sides face
Area；
Third sealing is connected between the second sealing of the two sides, for sealing wearer's lower lip or less or chin portion
The skin of the contact zone of position.
4. sealing element according to claim 3, which is characterized in that the thickness of the sealing element from first sealing extremely
The direction of the third sealing gradually becomes smaller.
5. sealing element according to claim 3, which is characterized in that the sealing element includes connecting with the cover and hollow
Gel section and porous portion in the sealant of sealant and environmental sealing, the gel section is made of gel like material,
The porous portion is made of porous padded coaming.
6. sealing element according to claim 4 or 5, which is characterized in that the sealant includes the first sealant and second
Sealant, the front of second sealant are connected to the back side of the cover, first sealant in the width direction two
End and the back side of second sealant connect so as to be formed between second sealant and first sealant for holding
Receive the sealing space of the gel section and porous portion, when the respiratory interface device is worn described in the first sealant and wearer
Facial skin patch touching.
7. sealing element according to claim 6, which is characterized in that first sealant passes through hot pressing, ultrasonic bonding
Or high frequency welding is connect and in the edge shape of first sealant and second sealant with second sealant
At edge seal the gel section and porous portion to be completely encapsulated in the sealing space, second sealant passes through
Binder or ultrasonic bonding connection are in the back side of the cover.
8. sealing element according to claim 6, which is characterized in that first sealant and second sealant are
Thermoplastic polymer film.
9. sealing element according to claim 8, which is characterized in that the thermoplastic polymer film is TPU film.
10. sealing element according to claim 9, which is characterized in that the TPU film with a thickness of 0.03mm~0.2mm,
Shore hardness be 30HA~100HA, ultimate tensile strength be 6000PSI~12000PSI, ultimate elongation rate be 300%~
800%.
11. sealing element according to claim 6, which is characterized in that first sealant is top fabric woven and TPU film
The composite layer being compounded to form, the respiratory interface device facial skin of the top fabric woven and wearer patch touching when wearing.
12. sealing element according to claim 5, which is characterized in that the gel section is Silica hydrogel, the cone of the Silica hydrogel
In-degree is 40~150, and tensile strength is 0.2MPa~1MPa.
13. sealing element according to claim 5, which is characterized in that the gel section is polyurethane gle, the polyurethane
The cone penetration of gel is 40~150, and tensile strength is 0.2MPa~1MPa.
14. sealing element according to claim 5, which is characterized in that the gel section is hydrogel, the cone of the hydrogel
In-degree is 40~150, and tensile strength is 0.2MPa~5MPa.
15. sealing element according to claim 5, which is characterized in that the compressive recovery rate of the gel section is 100%, pressure
Retracting and playing rate is 6mm/s to 40mm/s.
16. sealing element according to claim 15, which is characterized in that the compression rebound rate of the gel section is greater than
20mm/s。
17. sealing element according to claim 5, which is characterized in that the porous portion include polyurethane sponge, EVA sponge,
At least one of foam silica gel.
18. sealing element according to claim 5, which is characterized in that the gel section and the porous portion are in the sealing
Double-layer structure is stacked and formed in layer, and the porous portion is located at close to the side of the respiratory interface device.
19. sealing element according to claim 18, which is characterized in that the thickness of the gel section is less than or equal to described more
The thickness of hole portion, and the thickness of the gel section and the thickness ratio of the porous portion are 1:10~1:1.
20. sealing element according to claim 19, which is characterized in that the thickness of the thickness of the gel section and the porous portion
Degree is than being 1:3~1:1.
21. sealing element according to claim 18, which is characterized in that the thickness of the gel section is greater than the porous portion
Thickness, and the thickness of the gel section and the thickness ratio of the porous portion are 1:1~3:1.
22. sealing element according to claim 5, which is characterized in that the gel section and the porous portion are segmented knot
Structure, the both ends of the gel section are connected with the both ends of the porous portion respectively.
23. sealing element according to claim 22, which is characterized in that the gel section is set to first sealing,
The porous portion is set to second sealing and third sealing or the gel section is set to first sealing
And second sealing, the porous portion are set to the third sealing.
24. a kind of respiratory interface device, which is characterized in that including the described in any item sealing elements of claim 1 to 23.
25. respiratory interface device according to claim 24, which is characterized in that the respiratory interface device is mask, oxygen
Gas mask, anaesthetic mask, positive airway pressure breathing mask, self-absorbing filtering type respirator, any one in breathing mask.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710807258.6A CN109480354A (en) | 2017-09-08 | 2017-09-08 | Sealing element and respiratory interface device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710807258.6A CN109480354A (en) | 2017-09-08 | 2017-09-08 | Sealing element and respiratory interface device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109480354A true CN109480354A (en) | 2019-03-19 |
Family
ID=65687051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710807258.6A Pending CN109480354A (en) | 2017-09-08 | 2017-09-08 | Sealing element and respiratory interface device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109480354A (en) |
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| WO2021151401A1 (en) * | 2020-02-02 | 2021-08-05 | 深圳市那尼科技有限公司 | Bladder for sealing |
| WO2022007310A1 (en) * | 2020-07-10 | 2022-01-13 | 上海捷儿金科技股份有限公司 | Cool-feeling mask |
| WO2022007309A1 (en) * | 2020-07-10 | 2022-01-13 | 上海捷儿金科技股份有限公司 | Cool-feeling three-dimensional face mask |
| GB2609964A (en) * | 2021-08-19 | 2023-02-22 | Wai Yin Lau Ernest | Face mask, seal and mask body |
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