CN207604525U - sealing element and respiratory interface device - Google Patents
sealing element and respiratory interface device Download PDFInfo
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- CN207604525U CN207604525U CN201721166174.0U CN201721166174U CN207604525U CN 207604525 U CN207604525 U CN 207604525U CN 201721166174 U CN201721166174 U CN 201721166174U CN 207604525 U CN207604525 U CN 207604525U
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Abstract
The utility model is related to a kind of sealing element and respiratory interface devices, the sealing element is used to be configured in the dorsal edge of the cover body of respiratory interface device or close to edge, the both sides of the sealing element are symmetrical about a vertical plane, the sealing element is elastic sealing element, the sealing element can paste with the facial skin of wearer and touch and elastic deformation occur to match the profile of wearer's face when the respiratory interface device wearing, so that the sealing element forms effective sealing at wearer's bridge of the nose and the wing of nose.Above-mentioned sealing element, using symmetrical structure, and when respiratory interface device is worn, closely patch is touched and elastic deformation occurs for sealing element and the facial skin of wearer, it can match the profile of wearer's face, and then reach to forming the purpose effectively sealed at the bridge of the nose and the wing of nose, the respiratory interface device overall structure configured with the sealing element is simple, good seal performance, and comfortable wearing is not in sense of discomfort caused by being grown due to wear time.
Description
Technical field
The utility model is related to wear articles for use field, more particularly to a kind of sealing element and respiratory interface device.
Background technology
Currently, the breathing interface equipment type occurred in the market is various, function and application place is also had nothing in common with each other, for example,
Common medical mask, with the mask for crossing air filtering function.Medical mask is widely used in conveys oxygen or anesthesia to patient
During gas, but existing medical mask generally existing air-tightness is undesirable, wears bring discomfort to wearer for a long time
The problem of.Mask prevents to have by airborne communicable disease, filtering dust and certain pernicious gases etc. for people
Important function, existing mask can form gap when wearing, and whole leakproofness is poor, and leakage is easy especially at the bridge of the nose and the wing of nose
Gas, affects the protection effect of mask, and mask also eliminates gap, but its structure in the inside of plastic skeleton setting liner
It is complex, and sealing effect is bad, long periods of wear can influence comfort level.Existing breathing interface equipment generally existing air-tightness
And the problem of wear comfort.
Utility model content
Based on this, it is necessary to provide sealing element and the breathing interface of a kind of simple in structure, good seal performance and comfortable wearing
Device.
A kind of sealing element, the dorsal edge of the cover body for being configured in respiratory interface device or close edge, it is described
The both sides of sealing element are symmetrical about a vertical plane, and the sealing element is elastic sealing element, and the respiratory interface device wears when institute
Stating sealing element can paste tactile with the facial skin of wearer and elastic deformation occurs to match the profile of wearer's face, so that described
Sealing element forms effective sealing at wearer's bridge of the nose and the wing of nose.
The sealing element includes in one of the embodiments,：
First sealing is formed with the recess portion suitable for sealing wearer's bridge of the nose contact zone；
Second sealing extends along the both sides of first sealing and is respectively formed with suitable for sealing wearer in both sides
The lug boss of the wing of nose contact zone of bridge of the nose both sides；
Third sealing, second sealing along both sides extend, the skin for sealing wearer's nose both sides face
Skin contact zone.
The thickness of first sealing is less than the thickness of second sealing in one of the embodiments, described
The direction of second sealing of the thickness of first sealing from center to both sides gradually increases, the thickness of the third sealing
Degree is tapered into from second sealing to the end direction of the third sealing.
In one of the embodiments, the sealing element include connect with the cover body and hollow sealant and package it is close
The obturator being enclosed in the sealant, the obturator are at least one of gel section, porous portion.
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 body, the both ends of first sealant in the width direction and second sealant
The back side connects so that the sealing formed between second sealant and first sealant for accommodating the obturator is empty
Between, when the respiratory interface device is worn described in the first sealant and the facial skin of wearer patch touch.
First sealant passes through the welding of hot pressing, ultrasonic bonding or high frequency 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 obturator is completely encapsulated in the sealing space, second sealant by binder or ultrasonic bonding connection in
The back side of the cover body.
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 thickness of the TPU film be 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 is compounded to form with TPU film in one of the embodiments,
The top fabric woven and the facial skin patch of wearer are touched when the respiratory interface device wearing.
The obturator is gel section in one of the embodiments,.
The gel section is Silica hydrogel in one of the embodiments, and the cone penetration of the Silica hydrogel is 40~150, is drawn
It is 0.2MPa~1MPa to stretch intensity.
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
It is 0.2MPa~5MPa to stretch intensity.
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 more than 20mm/s in one of the embodiments,.
The obturator is porous portion in one of the embodiments, and the porous portion is foam silica gel or polyurethane sea
It is continuous.
The obturator includes porous portion and gel section in one of the embodiments, the gel section and described porous
Portion is stacked in the sealant and is formed double-layer structure, and the porous portion is located at one close to the respiratory interface device
Side.
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 for stating gel section and the thickness ratio of the porous portion are 1:10~1:1.
The thickness of the gel section and the thickness ratio of the porous portion are 1 in one of the embodiments,:3~1:1.
The thickness of the gel section is more 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 obturator includes porous portion and gel section in one of the embodiments, the gel section and described porous
Portion is segmentation structure, and the gel section is segmented along the length direction of the sealing element with the porous portion and lays.
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.
The respiratory interface device is mask, oxygen mask, anaesthetic mask, positive airway pressure in one of the embodiments,
Any one in breathing mask, self-absorbing filtering type respirator, breathing mask.
Above-mentioned sealing element, using symmetrical structure, and when respiratory interface device wearing, the face of sealing element and wearer
Portion's skin closely touch and elastic deformation occur by patch, can match the profile of wearer's face, and then reach to shape at the bridge of the nose and the wing of nose
At the purpose effectively sealed, the respiratory interface device overall structure configured with the sealing element is simple, good seal performance, and wears
Comfortably, be not in sense of discomfort caused by being grown due to wear time.
Description of the drawings
Fig. 1 is the simple schematic diagram for the mask that an embodiment provides；
The dimensional structure diagram of sealing element in mask shown in Fig. 2 Fig. 1；
Fig. 3 is the enlarged diagram of sealing element in mask shown in Fig. 1；
Fig. 4 is the expanded schematic diagram of sealing element in mask shown in Fig. 1；
Fig. 5 is the sectional view in the directions sealing element AA shown in Fig. 4；
Fig. 6 uses the partial sectional view of the sealing element of double-layer structure；
Fig. 7 is simple schematic diagram when mask is worn.
Specific implementation mode
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The better embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms
It realizes, however it is not limited to embodiments described herein.On the contrary, the purpose of providing these embodiments is that making new to this practicality
The disclosure of type understands more thorough and comprehensive.
It should be noted that when an element is considered as " connection " another element, it can be directly to separately
One element may be simultaneously present centering elements.Term as used herein " vertically ", " horizontal ", "left", "right"
And similar statement is for illustrative purposes only, is not offered as being unique embodiment.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with the technology for belonging to the utility model
The normally understood meaning of technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein "and/or" packet
Include any and all combinations of one or more relevant Listed Items.
It please refers to Fig.1, Fig. 2, provides sealing element 20 according to an embodiment, be used to be configured in the cover of respiratory interface device
On body, respiratory interface device can with but be not limited only to be medical oronasal mask, mask for filtering air, as shown in Fig. 2, sealing
Part 20 is arranged in 10 dorsal edge of cover body of mask 1 or close to edge, and sealing element 20 is corresponding with wearer when which wears
The facial skin in region is affixed tactile, is described by taking the mask 1 as an example below.
For filtering air, various structures, such as the cover with multi-layer nonwoven fabrics can be used in cover body 10 to the cover body 10 of mask 1
Body, as shown in fig. 6, can also be multi-layer nonwoven fabrics outermost layer be connected with outer cover 11 cover body or cover body 10 be equipped with
The flexible shell of filter layer.The both sides of cover body 10 are symmetrical about a vertical plane (not shown).Sealing element 20 is arranged in cover body 10
The back side, sealing element 20 be hollow closed loop configuration, generally three-dimensional structure, and have high resiliency, occur elastic deformation
After can restore to the original state within a short period of time, the both sides of sealing element 20 are symmetrical about vertical plane, mask 1 wear when, the sealing element 20
It is closely pasted with the facial skin of wearer and touches and elastic deformation occurs, to match the profile of wearer's face skin, to realize
Dynamic sealing.1 overall structure of mask is simple, good seal performance, and comfortable wearing, is not in as traditional mask is due to wearing
Caused by time length the problem of sense of discomfort.
In one embodiment, cover body 10 uses the structure of multi-layer nonwoven fabrics, sealing element 20 to be connected in the multi-layer nonwoven fabrics
On the outermost non-woven fabrics in the back side, cover body 10 is formed with folding line 102 in centre, which coincides with vertical plane, cover
The both sides of body 10 can along the folding line 102 towards the side doubling towards wearer together.
The opposite both 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 1, Figure 7 shows, in one embodiment, cover body 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 both sides of outer cover 11 can be with cover body 10 along above-mentioned folding
102 doubling of trace and close up, bandage 30 is extended to form from the opposite both sides of outer cover, i.e., bandage 30 is structure as a whole with outer cover 11.Cover
Body 10 is additionally provided with outlet valve 40, to reduce expiratory resistance.When respiratory interface device is medical oronasal mask, bandage is tied using other
Structure, such as the elastic bands of elastomeric overmold wearer's head.
Cover body 10 can also use other structures, and as using the cover body 10 in industrial mask 1, such mask 1 is worn
Time is longer, and cover body 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 in the flexible shell is arranged in part 20.
In conjunction with refering to Fig. 3, Fig. 4, in one embodiment, sealing element 20 includes the first sealing 201, along the first sealing
The third sealing that the second sealing 202 that 201 opposite both sides each extend over and the second sealing 202 along both sides extend
203.First sealing 201 is formed with the recess portion 2012 suitable for sealing wearer's bridge of the nose contact zone, the second sealing 202 of both sides
It is respectively formed with the lug boss 2011 of the wing of nose contact zone suitable for sealing wearer's bridge of the nose both sides, third sealing 203 is for close
Seal the correspondence skin contact area of wearer's nose both sides face.Sealing element 20 has high resiliency, when not being configured on mask 1
It can be unfolded, the structure after expansion is as shown in Figure 4.
It please refers to Fig.1, Fig. 5, in one embodiment, sealing element 20 includes being connect with cover body 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 body 10.Second 230 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 body 10.
Further combined with refering to Fig. 7, when mask 1 is worn, because the first sealant 210 and the facial skin of wearer are direct
It contacts, the material used in the first sealant 210 can be by cytotoxicity test, preferably, and the first sealant 210 can pass through biology
Compatibility test.Obturator 220 is being filled using low-density, the buffering material of soft, low elastic modulus, high rebound characteristics
220 stress of body occurs that the profile of wearer's nose can be matched when elastic deformation, realizes dynamic sealing, can effectively lower wearing mask
The risk leaked out is generated when 1 at the bridge of the nose and the wing of nose.
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, the thickness of TPU film is 0.03mm~0.2mm, and shore hardness is 30HA~100HA, and the limit is drawn
It is 6000PSI~12000PSI to stretch intensity, 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 is formed with TPU film thermal-adhering, when mask 1 is worn, the top fabric woven of the first sealant 210 and wearer
Facial skin be in direct contact；Second sealant 230 uses TPU film, the second sealant 230 to pass through binder or supersonic welding
It connects technique and is permanently bonded to 10 back side of cover body.Advantage：(1) fabric and skin contact are more comfortable, individual with using
The structure of TPU membrane is compared, and has apparent advantage in the performance of gas permeability, oil suction, moisture absorbing and sweat releasing etc.；(2) water-fastness, this is close
Sealing can be cleaned multiple times for a long time, extend 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 the structure of full gel can be used in obturator 220, i.e., the gel containing gel is all wrapped up in sealant
Portion, as shown in Figure 5；Obturator 220 can also be foam silica gel or polyurethane sponge including being sealed in sealant, that is, seal
Porous portion of the filling with porous structure in layer；The structure of gel section and porous portion mixing setting, example can also be used in obturator 220
Such as, using double-layer structure, i.e. gel section and porous portion is to be stacked；Or the structure laid using segmentation.
In one embodiment, obturator 220 is Silica hydrogel, is molded by raw material by being heating and curing.The filling
The hardness of body 220 is indicated by cone penetration (index for weighing grease consistency and soft or hard degree), is surveyed using GB/T 269-1991
Test-object is accurate, is tested using 1/4 ratio cone, and the cone penetration of the obturator 220 is 40~150；Other indexs：Tensile strength is
0.2MPa~1MPa, compressive recovery rate 100%, compression rebound rate：6mm/s~40mm/s, in one embodiment, rebound speed
Rate is more than 20mm/s；Above-mentioned Silica hydrogel includes mainly the raw material of two kinds of components of A, B, and component A main component is polysiloxane-based
Liquid, common such as methyl or vinyl polysiloxane or phenyl polysiloxane, B component is hydrogen containing siloxane and is added with Pt
Catalyst, when component A and B component by certain volume ratio after mixing, the material of two kinds of components of A, B at a certain temperature
Part cross-linking reaction occurs and cures, the soft class elastomeric material of molding gelled (solid-liquid state).Component A and B
The volume ratio of the viscosity of component about 700mPas~3500mPas, both component A, B component are 0.5:1~1.5:1.
In another embodiment, obturator 220 is tested using GB/T269-1991 and is marked using PU gels (polyurethane gle)
Standard is tested using 1/4 ratio cone, and the cone penetration of the obturator 220 is 40~150；Other indexs：Tensile strength is 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 using high intensity hydrogel, using GB/T 269-1991 testing standards,
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 includes nano material and height with reactive functional groups in hydrogel using high intensity, the macromolecule hydrogel of superabsorbent water
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.
In one embodiment, include polyacrylamide and alginates, the quality of polyacrylamide and alginates in hydrogel
Than being about 1:1~12:1, preferably ranging from 4:1~10:1, the two, which combines, under certain condition forms complicated three dimensional intersection
Network structure is resistant to the stretching of high intensity, 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
Foam silica gel or polyurethane sponge made of die cavity foaming.
Referring to Fig. 6, 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 body 10, and gel section 302 is located remotely from the side of cover body 10.Gel section
302 using 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 profile acts on the gel section by the first sealant 210
On 302；Porous portion 301 is made of the buffering material with porous structure, and density is less than 0.5g/cm3, optional material includes
But it is not limited only in advance through PU sponges, EVA sponges or the foam silica gel of trepanning or closed pore made of die cavity foaming, porous portion 301
Double-layer structure is formed in sealant 200 with gel section 302.In one embodiment, the thickness of gel section 302 is less than or equal to more
The thickness ratio of the thickness of hole portion 301, gel section 302 and porous portion 301 is 1:10~1:1, such as positioned at 1:3~1:Between 1.
In another embodiment, the thickness of gel section 302 is slightly larger than the thickness of porous portion 301, the thickness of gel section 302 and porous portion 301
Degree is than being 1:1~3:1.
In a specific embodiment, porous portion is used through die cavity foaming and the PU sponges of manufactured trepanning or closed pore,
Density 0.05g/cm3~0.2g/cm3, it is preferred that use density for 0.07g/cm3~0.15g/cm3Low resilience memory sea
Silk floss, the thickness ratio about 1 of gel section 302 and porous portion 301:1, the compression of wearer's face contoured skin is logical when mask 1 is worn
It crosses the first sealant 210 to act on the gel section 302, while compression is transferred to the porous portion 301 of 302 lower section of gel section,
And porous portion 301 is made to generate deformation.Low resilience memory foam can effective dispersive stress, and it is sensitive to compression, deformation can be passed through
To match the profile of wearer's face；And the characteristic that gel section 302 has aforementioned soft, quickly springs back, the combination of the two are
Can guarantee effective sealing, and can effectively disperse pressure, preferably match wearer profile, promoted wearing comfort level and
Suitability.Simultaneously as porous portion 301 is less than 0.2g/cm using density3PU sponges, density is only gel section density
1/5~1/4, relative to all schemes made of gel, the weight of sealing element can reduce by 40%~50%, keep wearing lighter
It is full of, comfortably, the cost of manufacture can also be reduced.
In another specific embodiment, porous portion 301 is using the bubble of manufactured trepanning or closed pore through die cavity foaming
Foam silica gel, the density after vulcanization are 0.3g/cm3~0.5g/cm3, for example, wacker can be selected
SC870 two-component foam silicone rubber materials foam aftershaping into density 0.35g/cm through die cavity3~0.4g/cm3Closed-cell foam
Silicon rubber has soft (Shore A 8~12), the characteristic of high resiliency, low compressive deformation；Gel section may be selected above-mentioned several
Kind gel, it is still further preferred that selection Silica hydrogel, such as wacker SILGEL 612A＆B, density 0.97g/cm3, with foam silicone rubber
Between have stronger adhesion；The thickness ratio about 1 of the gel section and porous portion:1.Closed-cell foam silicon rubber has ideal low
Hardness, the characteristic quickly sprung back, cooperation soft, high efficiency buffer, skin contact comfort Silica hydrogel, can effectively dispersion pressure
Power preferably matches the profile of patient, promotes the comfort level and suitability of wearing, and can suitably reduce the mechanical property of Silica hydrogel
Index (such as high rebound characteristics, because foam silicone rubber has high rebound characteristics)；Simultaneously as the density of foam silica gel is only solidifying
The 1/3~1/2 of glue portion density, relative to all schemes made of gel, the weight of sealing element can reduce by 20%~25%,
Keep wearing 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 cushioning effect, can promote the whole compression resilience of obturator 300, improve the leakproofness of mask 1
And comfort, compared with using the structure of pure porous portion 301, surface layer is gel section 302, and contact skin is more comfortable.
As shown in Fig. 2, Fig. 3, Fig. 6, in one embodiment, obturator 300 is 301 segmented of gel section 302 and porous portion
Structure, i.e., setting is there are one gel section 302 and a porous portion 301 in the sealant 200, also, the gel section 302 and more
Hole portion 301 is segmented along the length direction of sealing element 20 and lays, and the material in above-described embodiment, porous portion can be used in gel section 302
301 are made of the buffering material with porous structure, and density is less than 0.5g/cm3, optional material includes but are not limited to pre-
First through closed pore or PU sponges, EVA sponges or the foam silica gel of trepanning made of die cavity foaming.Gel section 302 and porous portion 301
Between joining place be not present difference in height, the two joining place is nature transition, gel section 302 due to certain mobility,
So the head and the tail both ends of gel section 302 some flow to porous portion 301, and after curing and porous portion 301 is formed as one
Body.In one embodiment, gel section 302 is set to the first sealing 201, and porous portion 301 is arranged in 202 He of the second sealing
Third sealing 203.In another embodiment, gel section 302 is set to the first sealing 201 and the second sealing 202, more
Hole portion 301 is set to third sealing 203.Using this structure, the weight of sealing element on the one hand can be reduced, reduction is produced into
On the other hand this can guarantee effective sealing in the part filled by gel section, especially in nose bridge, and filled out by porous portion
The comfort of skin contact when the part filled can effectively promote wearing.
Above-mentioned sealing element, using symmetrical structure, and when respiratory interface device wearing, the face of sealing element and wearer
Portion's skin closely touch and elastic deformation occur by patch, can match the profile of wearer's face, and then reach to shape at the bridge of the nose and the wing of nose
At the purpose effectively sealed, the respiratory interface device overall structure configured with the sealing element is simple, good seal performance, and wears
Comfortably, be not in sense of discomfort caused by being grown due to wear time.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, 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, it is all considered to be the range of this specification record.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (25)
1. a kind of sealing element, the dorsal edge of the cover body for being configured in respiratory interface device or close edge, described close
Sealing is corresponding with the position of wearer's bridge of the nose and the wing of nose, which is characterized in that the both sides of the sealing element are about a vertical plane pair
Claim, the sealing element is elastic sealing element, and the sealing element can be with face's skin of wearer when wearing for the respiratory interface device
Skin patch is touched and elastic deformation occurs to match the profile of wearer's face, so that the sealing element is at wearer's bridge of the nose and the wing of nose
Form effectively sealing；
The sealing element includes：
First sealing is formed with the recess portion suitable for sealing wearer's bridge of the nose contact zone；
Second sealing extends along the both sides of first sealing and is respectively formed with suitable for sealing wearer's bridge of the nose in both sides
The lug boss of the wing of nose contact zone of both sides；
Third sealing, second sealing along both sides extend, and the skin for sealing wearer's nose both sides face connects
Touch area.
2. sealing element according to claim 1, which is characterized in that it is close that the thickness of first sealing is less than described second
The direction of the thickness in envelope portion, second sealing of the thickness of first sealing from center to both sides gradually increases, institute
The thickness for stating third sealing is tapered into from second sealing to the end direction of the third sealing.
3. sealing element according to claim 1, which is characterized in that the sealing element includes being connect with the cover body and hollow
Obturator in the sealant of sealant and environmental sealing, the obturator is at least one in gel section, porous portion
Kind.
4. sealing element according to claim 3, which is characterized in that the sealant includes the first sealant and the second sealing
Layer, the front of second sealant are connected to the back side of the cover body, the both ends of first sealant in the width direction with
The back side of second sealant connects so as to be formed between second sealant and first sealant for accommodating
State the sealing space of obturator, when the respiratory interface device is worn described in the first sealant and the facial skin of wearer paste
It touches.
5. sealing element according to claim 4, which is characterized in that first sealant passes through hot pressing, ultrasonic bonding
Or high frequency welding is connect with second sealant and in the edge shape of first sealant and second sealant
At edge seal the obturator to be completely encapsulated in the sealing space, second sealant by binder or
Ultrasonic bonding connection is in the back side of the cover body.
6. sealing element according to claim 4, which is characterized in that first sealant and second sealant are
Thermoplastic polymer film.
7. sealing element according to claim 6, which is characterized in that the thermoplastic polymer film is TPU film.
8. sealing element according to claim 7, which is characterized in that the thickness of the TPU film is 0.03mm~0.2mm,
Shore hardness be 30HA~100HA, ultimate tensile strength be 6000PSI~12000PSI, ultimate elongation rate be 300%~
800%.
9. sealing element according to claim 4, 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 when wearing the facial skin of the top fabric woven and wearer patch touch.
10. sealing element according to claim 3, which is characterized in that the obturator is gel section.
11. sealing element according to claim 10, which is characterized in that the gel section is Silica hydrogel, the Silica hydrogel
Cone penetration is 40~150, and tensile strength is 0.2MPa~1MPa.
12. sealing element according to claim 10, which is characterized in that the gel section is polyurethane gle, the poly- ammonia
The cone penetration of gels is 40~150, and tensile strength is 0.2MPa~1MPa.
13. sealing element according to claim 10, which is characterized in that the gel section is hydrogel, the hydrogel
Cone penetration is 40~150, and tensile strength is 0.2MPa~5MPa.
14. sealing element according to claim 10, which is characterized in that the compressive recovery rate of the gel section is 100%, pressure
It is 6mm/s to 40mm/s to retract and play rate.
15. sealing element according to claim 14, which is characterized in that the compression rebound rate of the gel section is more than
20mm/s。
16. sealing element according to claim 3, which is characterized in that the obturator is porous portion, and the porous portion is bubble
Foam silica gel, EVA sponges or polyurethane sponge.
17. sealing element according to claim 3, which is characterized in that the obturator includes porous portion and gel section, described
Gel section and the porous portion are stacked in the sealant and are formed double-layer structure, and the porous portion is located at close to described
The side of respiratory interface device.
18. sealing element according to claim 17, 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.
19. sealing element according to claim 18, 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.
20. sealing element according to claim 17, which is characterized in that the thickness of the gel section is more 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.
21. sealing element according to claim 3, which is characterized in that the obturator includes porous portion and gel section, described
Gel section and the porous portion are segmentation structure, and the gel section is with the porous portion along the length direction point of the sealing element
Duan Bushe.
22. the sealing element according to claim 17 or 21, which is characterized in that the gel section is set to first sealing
Portion, the porous portion be set to second sealing and third sealing or the gel section to be set to described first close
Envelope portion and the second sealing, the porous portion are set to the third sealing.
23. the sealing element according to claim 17 or 21, which is characterized in that the porous portion includes polyurethane sponge, bubble
At least one of foam silica gel.
24. a kind of respiratory interface device, which is characterized in that including claim 1 to 23 any one of them sealing element.
25. respiratory interface device according to claim 24, which is characterized in that the respiratory interface device is mask, oxygen
Any one in gas mask, anaesthetic mask, positive airway pressure breathing mask, self-absorbing filtering type respirator, breathing mask.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721166174.0U CN207604525U (en) | 2017-09-08 | 2017-09-08 | sealing element and respiratory interface device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721166174.0U CN207604525U (en) | 2017-09-08 | 2017-09-08 | sealing element and respiratory interface device |
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| Publication Number | Publication Date |
|---|---|
| CN207604525U true CN207604525U (en) | 2018-07-13 |
Family
ID=62793809
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721166174.0U Active CN207604525U (en) | 2017-09-08 | 2017-09-08 | sealing element and respiratory interface device |
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| Country | Link |
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| CN (1) | CN207604525U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109480353A (en) * | 2017-09-08 | 2019-03-19 | 深圳瑞之谷医疗科技有限公司 | Sealing element and respiratory interface device |
| CN111452385A (en) * | 2019-01-21 | 2020-07-28 | 珠海博纳百润生物科技有限公司 | Preparation method of air cushion type breathing mask |
| CN114073348A (en) * | 2020-08-17 | 2022-02-22 | 3M创新有限公司 | Sealing strip, respirator and manufacturing method of sealing strip |
-
2017
- 2017-09-08 CN CN201721166174.0U patent/CN207604525U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109480353A (en) * | 2017-09-08 | 2019-03-19 | 深圳瑞之谷医疗科技有限公司 | Sealing element and respiratory interface device |
| CN111452385A (en) * | 2019-01-21 | 2020-07-28 | 珠海博纳百润生物科技有限公司 | Preparation method of air cushion type breathing mask |
| CN114073348A (en) * | 2020-08-17 | 2022-02-22 | 3M创新有限公司 | Sealing strip, respirator and manufacturing method of sealing strip |
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