CN101559250B - Double-layer nose mask - Google Patents

Double-layer nose mask Download PDF

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Publication number
CN101559250B
CN101559250B CN2009101075057A CN200910107505A CN101559250B CN 101559250 B CN101559250 B CN 101559250B CN 2009101075057 A CN2009101075057 A CN 2009101075057A CN 200910107505 A CN200910107505 A CN 200910107505A CN 101559250 B CN101559250 B CN 101559250B
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internal layer
layer
double
nose
patient
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CN2009101075057A
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CN101559250A (en
Inventor
王双卫
傅烨
于邦仲
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Shenzhen Security Medical Technology Co ltd
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Ambulanc Shenzhen Tech Co Ltd
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Abstract

The invention discloses a double-layer nose mask which comprises an inner layer and an outer layer, wherein the inner layer can be attached to the face of a patient to cover the nose, the outer layer is arranged outside the inner layer, the inner layer is provided with an air inlet channel, an air chamber is formed between the inner layer and the nose, an exhaust channel is formed between the inner layer and the outer layer, the air chamber is connected with the exhaust channel through a one-way air valve, air flows from the air chamber to the exhaust channel in a one-way mode, at least one part of the periphery of the inner layer is folded inwards to form an inner layer folding fold which can be attached to the face of the patient to play a sealing role. The sealing tape formed by the inner layer pleat and the face of the patient leads the sealing performance of the nose mask to be obviously improved, and can effectively prevent gas from leaking, thereby avoiding the adverse effect of the gas leakage on the patient and improving the curative effect.

Description

Double-layer nasal mask
Technical field
The present invention relates to a kind of double-layer nasal mask of carrying medical gas for patient.
Background technology
At present in medical industry, with respirator is matching used two kinds of nose cup and oronasal mask are arranged, and nose cup is not owing to need hide oral area, make things convenient for patient to speak, can not make its face feel damp and hot discomfort, help oxygen and directly enter advantages such as patient respiration system, be widely used just gradually.Yet existing nose cup mostly is single layer structure, and the shortcoming of this structure is: 1, patient can only breathe out with the nose suction and with mouth when breathing, and this brings some inconvenience to patient; 2, there is such a case clinically, when odontologist uses the analgesia respirator to carry anesthetic gases to patient, same breathing nose cup all can be used on one's body many different patients repeatedly, and therefore, patient and even doctor exist the possibility of cross infection.Natural, all should be disposable to the nose cup that patient uses.Yet because the non-dismountable property of single layer structure, disposable use must improve the cost of medical treatment greatly.Afterwards, the appearance of some double-decker nose cups is arranged, for example the disclosed double-layer nasal mask of Chinese patent CN200720172765.9 is once using only replacing internal layer wherein of back, and this has solved this two problems to a certain extent, but, owing to there is not a gas discharge structure reasonable in design, existing double-decker nose cup in use, patient expired gas is easy to flow out from the gap of nose cup periphery, cause patient's cheek, eye to feel damp and hot discomfort, and influence medical effect.
Summary of the invention
Main purpose of the present invention is exactly at the deficiencies in the prior art, and a kind of double-layer nasal mask is provided, and can overcome the shortcoming that above-mentioned existing nose cup uses, and makes patient respiration smooth and easy more comfortable, improves comfortableness, the safety of therapeutic process, improves therapeutic effect.
For achieving the above object, the present invention is by the following technical solutions:
A kind of double-layer nasal mask, comprise and to be posted by the internal layer and the skin that is arranged at outside the described internal layer that patient covers nose on the face, described internal layer has inlet channel, form air chamber between described internal layer and the nose, form the exhaust passage between described internal layer and the skin, be connected by Non-return air valve between described air chamber and the described exhaust passage, gas from described air chamber to the one-way flow of described exhaust passage, described it is characterized in that, the inwardly turnover of at least a portion periphery of described internal layer, formation can be close to patient and turn over pleat with the internal layer that seals on the face.
Preferably, the V font depression that matches with the bridge of the nose is formed at the top of described internal layer, and described internal layer has and can turn over pleat with the described internal layer of bridge of the nose applying at described V word recess.
Preferably, the inwardly turnover of at least a portion periphery that described skin and described internal layer join forms to be close on the described internal layer and turns over pleat with the skin that seals.
Preferably, described internal layer for the nose shape match cup-shaped.
Preferably, described Non-return air valve comprises valve position and is installed in valve body on the described valve position, described valve body when exhaling under the gas pressure its periphery outwards warpage for giving vent to anger.
Preferably, described valve position is a colyliform, it comprises spoke, the wheel hub of axle and the fan-shaped opening of a plurality of equalizations that described spoke forms is installed, and described valve body is the disc valve that is connected the outer end of described axle, and described disc valve is airtight described fan-shaped opening under naturalness.
Preferably, outer field inwall is provided with the rib of projection, and described rib makes internal layer and described skin form described exhaust passage separately.
Preferably, be connected to a pair of air inlet pipe and a pair of escape pipe on the described skin symmetrically, described air inlet pipe and described inlet channel join, described escape pipe and described exhaust passage join, described inlet channel comprises the connection tube that is arranged on the internal layer, and described connection tube closely inserts the air inlet that is used to connect described air inlet pipe on the described skin.
Preferably, the external diameter of described connection tube than the aperture of the described air inlet that it inserted slightly greatly to realize tight fit.
Preferably, described air inlet pipe and/or described escape pipe are elastic wavy pipe.
Beneficial technical effects of the present invention is:
Double-layer nasal mask of the present invention at first is to have inside and outside layer double-decker, what contact with patient face after wearing is internal layer, Non-return air valve separates skin and internal layer come, breath at air chamber to being unidirectional between the exhaust passage, the skin of nose cup and its just high-temperature sterilization repeatedly of accessory like this, repeat repeatedly to use, reduce medical treatment cost, save patient's spending.On the other hand, according to double-layer nasal mask of the present invention, the inwardly turnover of at least a portion periphery of internal layer, formation can be close to patient and turn over pleat with the internal layer that seals on the face, the band that fit to form with patient face obviously improves sealing, can effectively prevent gas leak, thereby avoid gas leakage that patient is caused discomfort.
According to preferred embodiment, the V font depression that matches with the bridge of the nose is formed at the top of internal layer, and internal layer has and can turn over pleat with the described internal layer of bridge of the nose applying at V word recess.The profile of internal layer has the shape that matches with the nose shape.This ergonomic structure that is suitable for wearing, the sense of discomfort when allowing user not wear, and internal layer turns over pleat and the applying of patient face can form band, simultaneously, also leaves the space between nose cup and the patient's eyes, thereby guarantees the safety of eyes.
According to preferred embodiment, the inwardly turnover of at least a portion periphery that outer and described internal layer joins forms to be close on the internal layer and turns over pleat with the skin that seals, and this more helps internal layer and outer field close fit.Even occur the situation of anesthetic gases or exhaust gas leakage between internal layer and the patient face, these gas leakages will be discharged (for example adopting the vacuum source sucking-off) by the exhaust passage between the inside and outside layer, thereby avoid gas to reveal from skin patient be caused discomfort.According to this configuration, inside and outside layer plays the guaranteeing role of double-layer seal.
Compare with traditional equipment, use double-layer nasal mask of the present invention to make patient pass in and out that gas is more smooth and easy and comfortable, treatment is effective more and safety in clinical, as use double-layer nasal mask of the present invention when treating respiratory failure, patient's long-term surviving rate is significantly improved.
Description of drawings
Fig. 1 is the axonometric chart of the double-layer nasal mask of an embodiment of the present invention;
Fig. 2 is the outer field cutaway view of the double-layer nasal mask of an embodiment of the present invention;
Fig. 3 is the sectional view of the double-layer nasal mask of an embodiment of the present invention;
Fig. 4 is the cutaway view of facing upward of the double-layer nasal mask of an embodiment of the present invention;
Fig. 5 is the main cutaway view of the double-layer nasal mask of an embodiment of the present invention.
Feature of the present invention and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
The specific embodiment
Please refer to Fig. 1 to 5, double-layer nasal mask 10 comprises internal layer 11 and the skin 20 that is arranged at outside the internal layer, and it is cup-shaped that internal layer 11 employings and nose shape match, the patient's that can fit after wearing face, thus between internal layer 11 and nose, form an air chamber 15.Internal layer 11 has the inlet channel that is used to import medical gas.The skin 20 of nose cup adopts and can dispose with the mode that internal layer 11 is separated, and itself and internal layer 11 form the exhaust passage 22 that can discharge patient expired gas separately.Be connected by Non-return air valve 46 between air chamber 15 and the exhaust passage 22, make breath from air chamber to the exhaust passage one-way flow.The internal layer 11 preferred silica gel of soft highly-elastic that adopt are made, and edge and patient face fit and form sealing.
As shown in Figure 1, internal layer 11 meets human engineering with the shape profile that the nose shape matches, nose cup patient's the nose of can fitting naturally when wearing, the sense of discomfort when allowing user not wear.Leave the space between nose cup and the patient's eyes, thus the safety of protection eyes.
Shown in Fig. 1,3,4, the inside turnover of the periphery of internal layer 11 forms internal layer in the past and turns over pleat 11a, when nose cup 10 is worn on patient's the nose, internal layer turns over pleat 11a can be attached to patient on the face, and like this, internal layer turns over pleat 11a will form a good band between internal layer 11 and patient face, effectively prevent gas leak, thereby the sense of discomfort of avoiding gas leakage to bring to patient, and guarantee human eye not to be produced harmful effect, the effect of treatment can also be improved simultaneously.
Shown in Fig. 1,4, be provided with V font depression 12 on the top of internal layer 11, match with patient's the bridge of the nose.The V word caves in the pleat face that turns over of 12 parts directly towards air chamber 15, and the bridge of the nose of can fitting like this forms seal area closely.V word 12 parts that cave in have further strengthened the interval of nose cup and patient's eyes, thus the safety when guaranteeing that patient uses nose cup.
Shown in Fig. 1 to 5, outer 20 with internal layer 11 coordination coordinated and exist certain interval ground to assemble mutually.Outer 20 preferably also adopt softish silica gel to make.On outer 20 the inwall bossed rib 21 is set preferably, making and forming a clearance space between internal layer and the skin is exhaust passage 22.About being provided with symmetrically on outer 20 two air inlet pipe 30,31 and about two escape pipes 32,33 (is reference with people's face).These four silica gel tubes are preferably designed to wavy, and have better elastic, thereby are convenient to the connection of external hose.As shown in Figure 4, internal layer 11 has two connection sebific ducts 16,17, and this connection sebific duct 16,17 inserts two air inlet 20a on outer 20 respectively to be communicated with two air inlet pipe 30, and medical gas can enter air chamber 15 by connecting sebific duct.Cut air inlet pipe 30 open can see on the internal layer connection sebific duct 16,17, the external diameter that connects sebific duct is bigger than the aperture of the air inlet of its insertion, thereby reaches the purpose of sealing.Also be provided with two air vent 20b, 20d of the gas passage 22 that runs on outer 20, air vent 20b, 20d be external two escape pipes 31 respectively, are used for the waste gas of exhaust passage is discharged.Can adopt the means of utilizing suitable vacuum source guiding gas to realize aerofluxus (figure does not show).
Shown in Fig. 1,3,5, outer 20 open circumferential preferably has the skin that periphery with internal layer 11 turns over pleat 11a broadly similar and turns over pleat, and this helps internal layer and outer field close fit.Like this, even occur the situation that anesthetic gases or waste gas are revealed between internal layer 11 and the patient face, the gas of these leakages will be sucked in (for example passing through vacuum source) exhaust passage 22 is discharged by exhaustor 31 again, so just avoids gas leakage that patient is caused discomfort.According to this configuration, inside and outside layer of effect that the bilayer that plays ensures.
Shown in Fig. 3 to 5, internal layer 11 is provided with the valve position 40 of a colyliform, and valve position 40 is provided with hub bore 40a, the spoke 40b of a 40d and the fan-shaped opening 40c of four equalizations are installed.On this valve position 40, lean on the outer end of exhaust passage 22 that a disc valve 45 is installed at axle 40d.Valve position 40 and disc valve 45 match and constitute aforementioned Non-return air valve 46.Disc valve 45 is made by whippy material of softness such as silica gel, thereby can be bent.Disc valve 45 can stick under the naturalness on the bottom surface of valve position 40 as valve position 40 and outer 20 s' interlayer, and its periphery under pressure can warpage.
Generally, disc valve relies on its hub 45a, closely snaps together with valve position 40, thereby the fan-shaped opening 40b on the valve is blocked.In this state, air chamber 15 and exhaust passage 22 are obstructed.When patient inhales, medical gas enters connection sebific duct 16,17 by the air inlet pipe 30 of skin 20 from air inlet 20a, 20c, imports in the air chamber 15, disc valve 45 seals valve position 40, has blocked be communicated with the leaking with prevention gas of air chamber 15 with exhaust passage 22.When patient exhales, disc valve 45 peripheries are radial warpage under the more atmospheric effect in air chamber 15, and this moment, the waste gas in air chamber 15 will enter exhaust passage 22 by the fan-shaped opening 40b that opens, rely on suitable vacuum source getter action (not shown) again, waste gas is discharged by exhaustor 31 continuously from air vent 20b, 20d.
According to above-mentioned structure, internal layer 11 all can be from disassembling from skin 20 easily with Non-return air valve 46, and after nose cup used, internal layer 11 and Non-return air valve 46 were convenient for changing new, perhaps reuse in the high-temperature sterilization of carrying out routine, outer 20 then can repeatability use.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.

Claims (9)

1. double-layer nasal mask, comprise and to be posted by the internal layer and the skin that is arranged at outside the described internal layer that patient covers nose on the face, described internal layer has inlet channel, form air chamber between described internal layer and the nose, form the exhaust passage between described internal layer and the skin, be connected by Non-return air valve between described air chamber and the described exhaust passage, gas from described air chamber to the one-way flow of described exhaust passage, described it is characterized in that, the inwardly turnover of at least a portion periphery of described internal layer, formation can be close to patient and turn over pleat with the internal layer that seals on the face, the inwardly turnover of at least a portion periphery that described skin and described internal layer join forms to be close on the described internal layer and turns over pleat with the skin that seals.
2. double-layer nasal mask as claimed in claim 1 is characterized in that, the V font depression that matches with the bridge of the nose is formed at the top of described internal layer, and described internal layer has and can turn over pleat with the described internal layer of bridge of the nose applying at described V word recess.
3. double-layer nasal mask as claimed in claim 1 is characterized in that, described internal layer for the nose shape match cup-shaped.
4. as each described double-layer nasal mask of claim 1 to 3, it is characterized in that described Non-return air valve comprises valve position and be installed in valve body on the described valve position, described valve body when exhaling under the gas pressure its periphery outwards warpage for giving vent to anger.
5. double-layer nasal mask as claimed in claim 4, it is characterized in that, described valve position is a colyliform, it comprises spoke, the wheel hub of axle and the fan-shaped opening of a plurality of equalizations that described spoke forms is installed, described valve body is the disc valve that is connected the outer end of described axle, and described disc valve is airtight described fan-shaped opening under naturalness.
6. as each described double-layer nasal mask of claim 1 to 3, it is characterized in that outer field inwall is provided with the rib of projection, described rib makes internal layer and described skin form described exhaust passage separately.
7. as each described double-layer nasal mask of claim 1 to 3, it is characterized in that, be connected to a pair of air inlet pipe and a pair of escape pipe on the described skin symmetrically, described air inlet pipe and described inlet channel join, described escape pipe and described exhaust passage join, described inlet channel comprises the connection tube that is arranged on the internal layer, and described connection tube closely inserts the air inlet that is used to connect described air inlet pipe on the described skin.
8. double-layer nasal mask as claimed in claim 7 is characterized in that, the external diameter of described connection tube than the aperture of the described air inlet that it inserted slightly greatly to realize tight fit.
9. double-layer nasal mask as claimed in claim 7, described air inlet pipe and/or described escape pipe are elastic wavy pipe.
CN2009101075057A 2009-05-13 2009-05-13 Double-layer nose mask Active CN101559250B (en)

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Application Number Priority Date Filing Date Title
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CN101559250B true CN101559250B (en) 2011-04-27

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101920054B (en) * 2010-08-17 2012-12-12 深圳市安保科技有限公司 Medical nasal mask
CN114010903A (en) * 2013-01-16 2022-02-08 瑞思迈私人有限公司 Patient interface and method of making same
CN105056363B (en) * 2015-09-01 2018-01-12 饶彬 Breathe nose cup
US10960163B2 (en) * 2016-09-02 2021-03-30 Fresca Medical Inc. Apparatus, systems, and methods for improved treatment of obstructive sleep apnea

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2735030A1 (en) * 1995-06-09 1996-12-13 Peters Nasal mask for respirator
CN1784250A (en) * 2003-05-02 2006-06-07 雷斯梅德有限公司 A mask system
CN201123948Y (en) * 2007-10-30 2008-10-01 王双卫 Double-layer suction type nose mask without repetition

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2735030A1 (en) * 1995-06-09 1996-12-13 Peters Nasal mask for respirator
CN1784250A (en) * 2003-05-02 2006-06-07 雷斯梅德有限公司 A mask system
CN201123948Y (en) * 2007-10-30 2008-10-01 王双卫 Double-layer suction type nose mask without repetition

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CP01 Change in the name or title of a patent holder

Address after: 518052 Guangdong city of Shenzhen province Nanshan District New Road South Industrial Park building A on the third floor of the East

Patentee after: Shenzhen Security Medical Technology Co.,Ltd.

Address before: 518052 Guangdong city of Shenzhen province Nanshan District New Road South Industrial Park building A on the third floor of the East

Patentee before: AMBULANC (SHENZHEN) TECH. Co.,Ltd.