CN107376089B - A kind of oxygen concentration adjustable oxygen mask - Google Patents
A kind of oxygen concentration adjustable oxygen mask Download PDFInfo
- Publication number
- CN107376089B CN107376089B CN201710643014.9A CN201710643014A CN107376089B CN 107376089 B CN107376089 B CN 107376089B CN 201710643014 A CN201710643014 A CN 201710643014A CN 107376089 B CN107376089 B CN 107376089B
- Authority
- CN
- China
- Prior art keywords
- inner sleeve
- spool
- spine slot
- pedestal
- fixing axle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/06—Respiratory or anaesthetic masks
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/12—Preparation of respiratory gases or vapours by mixing different gases
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/201—Controlled valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
Abstract
A kind of adjustable oxygen face mask of oxygen concentration,Concentration adjusting device includes the pedestal with being fixed on mixing arrangement,Pedestal is equipped with the lower stomidium communicated opposite with air channel inlet,Lower stomidium is connected with air duct sealing,Inner sleeve is rotatably connected on pedestal,The distance at the first spine slot to bottom to inner sleeve center of the 4th spine slot is sequentially increased,Spool is equipped with ratchet away from one end of spine slot mounting hole,Ratchet under the action of spool and spool compression spring with the first spine slot,Second spine slot,Third spine slot,The cooperation of 4th spine slot forms inner sleeve one-directional rotation structure,Inner sleeve rotate and area that upper end hole is overlapped with lower stomidium also with respect to changing,Spool is fitted closely with pedestal,Valve core case is fixed with fixing axle among top,The present invention is to the easy to adjust quick of the concentration of oxygen,The pause and transition in rhythm or melody sense generated by ratchet can judge whether to reach selected gear easily,And it will not change easily.
Description
Technical field
The present invention relates to technical field of medical equipment, particularly a kind of oxygen concentration adjustable oxygen mask.
Background technology
Breathing is the first element that life maintains, patient or other symptoms patient with respiratory system, is needed quantitative
Oxygen supply, oxygen supply can reduce frequency of disease development, improve viscera function, strengthen immunity.But it is different according to the situation of patient, to supplying
The oxygen concentration of oxygen is also just different, while is breathed under high oxygen concentration for a long time, it is possible to can cause oxygen poisoning.It it requires oxygen uptake
The concentration of oxygen can be adjusted in 1 oxygen uptake of mask.Present oxygen concentration adjustment structure is complicated for operation, and is easier to falsely drop oxygen
Concentration regulation stall and the very big switch for accidentally changing oxygen concentration without knowing it of presence, this is to carrying out
It is a very big risk to supply oxygen for the patient of breathing.
Invention content
For the above situation, to overcome the defect of the prior art, it is adjustable that the purpose of the present invention is just to provide a kind of oxygen concentration
The oxygen face mask of formula, to the risk easy to adjust and very big for reducing misadjustment or unintentionally changing oxygen concentration of oxygen concentration.
Its solve technical problem scheme be a kind of adjustable oxygen face mask of oxygen concentration, including mask, humidifier,
Mixing arrangement, concentration adjusting device, air pressurization device, the mixing arrangement include the mixing housing with mixing chamber, institute
The hybrid channel that mixing housing is equipped with semi-circular shape is stated, one end of hybrid channel is connected with mixing chamber, the other end and oxygen
Feed channel connects, and is additionally provided with air duct in the mixed shell body, described air duct one end with hybrid channel is tangent connects,
The other end is connected with concentration adjusting device, and the humidifier is connected with mixing chamber, and the mask passes through with mixing chamber
Conduit is detachably connected logical, and the concentration adjusting device includes being fixed on pedestal on mixing arrangement, and the pedestal is equipped with
The lower stomidium communicated opposite with air channel inlet, the lower stomidium are connected with air duct sealing, the company of rotation on the pedestal
Be connected to inner sleeve, it is described in put on equipped with the first spine slot, the second spine slot, third spine slot, the 4th spine slot, they, which are sequentially connected, surrounds one
Week and the hollow structure for forming inner sleeve, the distance at the first spine slot to bottom to inner sleeve center of the 4th spine slot are sequentially increased, pedestal
The valve core case extending among inner sleeve is equipped with, spool is slidably connected on valve core case, the valve core case is equipped with mounting hole, valve
Core is inserted into mounting hole and spool compression spring is equipped between spool and mounting hole bottom, and the spool is equipped with can be with lower stomidium weight
The upper end hole of conjunction, upper end hole are connect by gas-guide tube with air pressurization device, and the spool is equipped with spine away from one end of mounting hole
Tooth, ratchet are formed under the action of spool and spool compression spring with the first spine slot, the second spine slot, third spine slot, the cooperation of the 4th spine slot
Inner sleeve one-directionally rotates structure, inner sleeve rotation and area that upper end hole is overlapped with lower stomidium also with respect to changing, the spool and
Pedestal fits closely, and fixing axle is fixed among the valve core case top, the fixing axle is up and down slidably and around fixing axle
Supporting rod is rotationally cased with, there is the spring being sleeved in fixed link between supporting rod and valve core case, the both ends of supporting rod connect
There is the clamping wedge block of clamping inner sleeve, supporter is rotatably connected in fixing axle, supporting rod top is axisymmetrically set about fixation
There are two gliding grooves, slidably and around fixing axle be rotationally cased with turntable up and down in the fixing axle, the turntable lower part is closed
Axisymmetrically be equipped with upper hopper chute in fixed, two V-arrangement compression bars be symmetrically installed on the supporter, V-arrangement compression bar upper end with it is right
The upper hopper chute of side is answered to contact, the lower end of V-arrangement compression bar is contacted with the gliding groove of respective side.
Preferably, fixing axle is equipped with location hole, is inserted with positioning pin in the location hole, the turntable is contacted with fixing axle
Hole wall be equipped with the corresponding mounting hole of alignment pin position, being equipped in the mounting hole can determine along what fixed axis direction move
Position wedge block, the top of the positioning wedge block is connected with the pull rod for being pierced by turntable upwards and being slidably connected with turntable, described fixed
The positioning pin extending into mounting hole can be detached from location hole by position wedge block under pull rod pulling.
Preferably, clamping wedge block contacts with the inner sleeve face as inclined arc surface.
Preferably, the lower part of inner sleeve be equipped with annular protrusion, the pedestal be equipped with the corresponding annular groove of annular protrusion,
Annular protrusion, which is extend into annular groove, forms the structure that inner sleeve is connect with base rotation.
Preferably, the ejiction opening of humidifier is extend into mixing chamber.
The present invention to the easy to adjust quick of the concentration of oxygen, the pause and transition in rhythm or melody sense generated by ratchet can judge easily be
No arrival selected gear, and will not change easily.Rotation could drive inner sleeve rotation to go to adjust after turntable application presses power
Oxygen concentration is saved, greatly reduces the risk for changing oxygen concentration in the case of being not intended in this way.
Description of the drawings
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is the schematic diagram of oxygen concentration adjusting device of the present invention.
Fig. 3 is the partial view at Fig. 2A.
Fig. 4 is the close-up schematic view at Fig. 2 B.
Specific embodiment
The specific embodiment of the present invention is described in further detail below in conjunction with attached drawing.
It is provided by Fig. 1 to Fig. 4, a kind of adjustable oxygen face mask of oxygen concentration, including mask 1, humidifier 2, mixing dress
Put 3, concentration adjusting device 4, air pressurization device 5, which is characterized in that the mixing arrangement 3 is included with mixing chamber 301
Housing 302 is mixed, the mixing housing 302 is equipped with the hybrid channel 303 of semi-circular shape, and one end of hybrid channel 303 is with mixing
It closes chamber 301 to connect, the other end is connected with oxygen channel 6, and air duct 304 is additionally provided in the mixing housing 302, described
304 one end of air duct with hybrid channel 303 is tangent connects, the other end is connected with concentration adjusting device 4, the humidification dress
It puts 2 with mixing chamber 301 to be connected, the mask 1 is detachably connected logical, the concentration tune with mixing chamber 301 by conduit
Regulating device 4 includes the pedestal 7 being fixed on mixing arrangement 3, and the pedestal 7 is equipped with communicate opposite with 304 entrance of air duct
Lower stomidium 701, the sealing of the lower stomidium 701 and air duct 304 connects, and inner sleeve 8, institute are rotatably connected on the pedestal 7
Inner sleeve 8 is stated equipped with the first spine slot 801, the second spine slot 802, third spine slot 803, the 4th spine slot 804, they, which are sequentially connected, surrounds
One week and the hollow structure of inner sleeve 8 is formed, the distance of the bottom of 801 to the 4th spine slot 804 of the first spine slot to 8 center of inner sleeve is successively
Increase, pedestal 7 are equipped with the valve core case 9 extending among inner sleeve 8, spool 10, the valve core case are slidably connected on valve core case 9
9 are equipped with mounting hole 901, and spool 10 is inserted into mounting hole 901 and spool pressure is equipped between 901 bottom of spool 10 and mounting hole
Spring 11, the spool 10 are equipped with the upper end hole 1001 that can be overlapped with lower stomidium 701, and upper end hole 1001 passes through gas-guide tube and air
Pressue device 5 connects, and the spool 10 is equipped with ratchet 12 away from one end of mounting hole 901, and ratchet 12 is in spool 10 and spool pressure
Under the action of spring 11 8 list of inner sleeve is formed with the first spine slot 801, the second spine slot 802, third spine slot 803, the cooperation of the 4th spine slot 804
To rotational structure, inner sleeve 8 rotates and area that upper end hole 1001 is overlapped with lower stomidium 701 is also opposite changes, the spool
10 fit closely with pedestal 7, are fixed with fixing axle 13 among 9 top of valve core case, the fixing axle about 13 slidably and
Supporting rod 14 is rotationally cased with around fixing axle 13, there is the spring being sleeved in fixed link between supporting rod 14 and valve core case 9
15, the both ends of supporting rod 14 are connected with the clamping wedge block 16 of clamping inner sleeve 8, and supporter 17 is rotatably connected in fixing axle 13,
14 top of supporting rod is symmetrically equipped with two gliding grooves 1401 about fixing axle 13, slidably and surrounds up and down in the fixing axle 13
Fixing axle 13 is rotationally cased with turntable 18, and 18 lower part of turntable is symmetrically equipped with upper hopper chute 1801, institute about fixing axle 13
It states and two V-arrangement compression bars 19 is symmetrically installed on supporter 17,19 upper end of V-arrangement compression bar is contacted with the upper hopper chute 1801 of respective side, V
The lower end of shape compression bar 19 is contacted with the gliding groove 1401 of respective side.
Air enters air duct 304 and hybrid channel after the supercharging of air pressurization device 5 through over-richness regulating device 4
303, oxygen also enters hybrid channel 303, and oxygen is tentatively mixed with air in hybrid channel 303, then into mixing
Chamber 301, is sufficiently mixed in mixing chamber 301 while humidifier 2 is to mixed air and oxygen humidification, finally mixes
Oxygen patient is supplied oxygen by mask 1.The inlet of air is adjusted so as to reach to oxygen by concentration adjusting device 4
Concentration control.The first spine slot 801, the second spine slot 802, third spine slot 803, the 4th spine slot 804 are set in inner sleeve 8 successively,
Under the action of spool compression spring 11 and spool 10, ratchet 12 can be with the first spine slot 801, the second spine slot 802, third spine slot 803,
Four spine slots 804 coordinate and are controlled by rotating inner sleeve 8.Ratchet 12 be located at the first spine slot 801 either the second spine slot 802 or
When third spine slot 803 or the 4th spine slot 804, the coincidence face of upper end hole 1001 and the lower stomidium 701 on pedestal on spool 10
Product is different, is also different in this way by upper end hole 1001 and the oxygen flow of lower stomidium 701.Rotate inner sleeve 8 so that
First spine slot 801, the second spine slot 802, third spine slot 803 or the 4th spine slot 804 coordinate respectively with ratchet 12, can realize four
The adjusting of kind different oxygen concentrations.12 and first spine slot 801 of ratchet, the second spine slot 802, third spine slot 803 or the 4th spine slot 804
After cooperation, inner sleeve 8 can only single direction rotation, and rotate adjust during have pause and transition in rhythm or melody sense, can judge whether rotation to phase easily
The gear answered.The rotation of inner sleeve 8 is pressed downwards turntable 18, V-arrangement compression bar 19 deflects, two V-arrangement compression bars by the control of turntable 18
19 contact with supporting rod 14 and are pressed down against supporting rod 14, and supporting rod 14 moves downward and drive the clamping wedge shape that its both ends is connected
Block 16 moves downward, and clamping wedge block 16 moves down, because being inclined surface, inner sleeve 8 can be clamped.It finally presses and turns
Turntable 18 is rotated while disk 18, turntable 18 drives V-arrangement compression bar 19 and supporter 17 to be rotated around fixing axle 13, and then V-arrangement pressure
Bar 19 drives supporting rod 14 to rotate by stretching into the part of gliding groove 1401, and supporting rod 14 drives to be clamped by clamping wedge block 16
Inner sleeve 8 rotate, inner sleeve 8 rotation make the first spine slot 801, the second spine slot 802, third spine slot 803 or the 4th spine slot 804 and spine
Tooth 12 coordinates, and then has the function that adjust and enter 301 air capacity of mixing chamber and change oxygen concentration.It is rotated by inner sleeve 8
When the pause and transition in rhythm or melody sense that generates of ratchet 12 and the torque that applies to turntable 18 easily discern whether to adjust to corresponding oxygen shelves
Position.After the completion of gear is adjusted, Panasonic's turntable 18, under the action of spring 15, clamping wedge block 16 unclamps the clamping to inner sleeve 8,
The outside of inner sleeve 8 can be equipped with protective case at this time, inner sleeve 8 will not be caused to revolve in the case where only touching turntable 18 in this way
Turn, the oxygen concentration supplied oxygen to patient will not be changed because of touching unintentionally so that the oxygen therapy of patient more safety and stability is reliable.
The fixing axle 13 is equipped with location hole 1301, and positioning pin 20, the turntable 18 are inserted in the location hole 1301
The hole wall contacted with fixing axle 13 be equipped with the corresponding mounting hole 1802 in 20 position of positioning pin, set in the mounting hole 1802
There is the positioning wedge block 21 that can be moved along 13 direction of fixing axle, the top of the positioning wedge block 21 is connected with is pierced by turntable upwards
18 and the pull rod 22 that is slidably connected with turntable 18, the positioning wedge block 21 can will extend into mounting hole under the pulling of pull rod 22
Positioning pin 20 in 1802 is detached from location hole 1301.Turntable 18 is pressed downwards, positioning pin 20 is extend into mounting hole 1802, and this
When clamp 16 inner clamping sleeve 8 of wedge block, even if no longer applying to turntable 18 to along the axial power of fixing axle 13, turntable 18 will not
It returns, then only needs to rotate turntable 18 without pressing power to the application of turntable 18 with regard to the dense of inner sleeve adjusting oxygen can be rotated again
Degree.After the completion of the gear of oxygen concentration is adjusted, pull rod 22 is pulled up, pull rod 22 drives positioning wedge block 21 to move up,
Wedge block 21 is positioned while moving up, it, also can be by positioning pin because its face touched with 20 nail joint of positioning pin is inclined surface
20 nails are squeezed out out of mounting hole 1802, are pulling up turntable 18, under the action of spring 15, supporting rod 14 is moved up and clamped
Wedge block 16 will lose the clamping to inner sleeve 8.
The clamping wedge block 16 is inclined arc surface with 8 contact surface of inner sleeve.Inner sleeve 8 is clamped in clamping wedge block 16
When, intrados can increase the contact area between clamping wedge block 16 and inner sleeve 8, and inner sleeve 8 and wedge shape clamping is made to clamp stress
More rationally.
The lower part of the inner sleeve 8 be equipped with annular protrusion, the pedestal 7 be equipped with the corresponding annular groove of annular protrusion,
Annular protrusion, which is extend into annular groove, forms the structure that inner sleeve 8 is rotatablely connected with pedestal 7.
The ejiction opening of the humidifier 2 is extend into mixing chamber 301.Air humidifying device 2 is arranged on mixing chamber
301 outside, and it is atomized steam jet and extend into mixing chamber 301, and then wherein oxygen is humidified so that in oxygen
Water content best suit the needs of human body oxygen intake.
The present invention to the easy to adjust quick of the concentration of oxygen, the pause and transition in rhythm or melody sense generated by ratchet can judge easily be
No arrival selected gear, and will not change easily.Rotation could drive inner sleeve rotation to go to adjust after turntable application presses power
Oxygen concentration is saved, greatly reduces the risk for changing oxygen concentration in the case of being not intended in this way.
Embodiment described above is not defined the scope of the present invention, before design concept of the present invention is not departed from
It puts, the various modifications and improvement that technical staff described in this field makes technical scheme of the present invention should all be included in the present invention
The protection domain that determines of claims in.
Claims (5)
1. a kind of adjustable oxygen face mask of oxygen concentration, including mask(1), humidifier(2), mixing arrangement(3), concentration adjust
Device(4), air pressurization device(5), which is characterized in that the mixing arrangement(3)Including carrying mixing chamber(301)Mixing
Housing(302), the mixing housing(302)It is equipped with the hybrid channel of semi-circular shape(303), hybrid channel(303)One end
With mixing chamber(301)Connection, the other end and oxygen channel(6)Connection, the mixing housing(302)Air is inside additionally provided with to lead to
Road(304), the air duct(304)One end and hybrid channel(303)Tangent connection, the other end and concentration adjusting device
(4)It is connected, the humidifier(2)With mixing chamber(301)It is connected, the mask(1)With mixing chamber(301)By leading
Pipe is detachably connected logical, the concentration adjusting device(4)Including being fixed on mixing arrangement(3)On pedestal(7), the pedestal
(7)It is equipped with and air duct(304)The opposite lower stomidium communicated of entrance(701), the lower stomidium(701)With air duct
(304)Sealing connection, the pedestal(7)On be rotatably connected to inner sleeve(8), the inner sleeve(8)It is equipped with the first spine slot(801)、
Second spine slot(802), third spine slot(803), the 4th spine slot(804), they, which are sequentially connected, surrounds one week and forms inner sleeve(8)'s
Hollow structure, the first spine slot(801)To the 4th spine slot(804)Bottom to inner sleeve(8)The distance at center is sequentially increased, pedestal
(7)It is equipped with and extend into inner sleeve(8)Intermediate valve core case(9), valve core case(9)On slidably connect spool(10), the spool
Seat(9)It is equipped with mounting hole(901), spool(10)It is inserted into mounting hole(901)It is interior and in spool(10)And mounting hole(901)Bottom
Between be equipped with spool compression spring(11), the spool(10)Being equipped with can be with lower stomidium(701)The upper end hole of coincidence(1001), upper end
Hole(1001)Pass through gas-guide tube and air pressurization device(5)Connection, the spool(10)Away from mounting hole(901)One end be equipped with
Ratchet(12), ratchet(12)In spool(10)With spool compression spring(11)Under the action of with the first spine slot(801), the second spine slot
(802), third spine slot(803), the 4th spine slot(804)Cooperation forms inner sleeve(8)One-directionally rotate structure, inner sleeve(8)Rotation and on
Stomidium(1001)With lower stomidium(701)The area of coincidence is also opposite to change, the spool(10)With pedestal(7)Close patch
It closes, the valve core case(9)Fixing axle is fixed among top(13), the fixing axle(13)Up and down slidably and around fixing axle
(13)Rotationally it is cased with supporting rod(14), supporting rod(14)And valve core case(9)Between have the spring being sleeved in fixed link
(15), supporting rod(14)Both ends be connected with clamping inner sleeve(8)Clamping wedge block(16), fixing axle(13)On be rotatably connected to
Supporter(17), supporting rod(14)Top is about fixing axle(13)Symmetrically it is equipped with two gliding grooves(1401), the fixing axle
(13)On up and down slidably and around fixing axle(13)Rotationally it is cased with turntable(18), the turntable(18)Lower part is about fixation
Axis(13)Symmetrically it is equipped with upper hopper chute(1801), the supporter(17)On two V-arrangement compression bars are symmetrically installed(19), V-arrangement pressure
Bar(19)Upper end and the upper hopper chute of respective side(1801)Contact, V-arrangement compression bar(19)Lower end and respective side gliding groove
(1401)Contact.
A kind of 2. adjustable oxygen face mask of oxygen concentration according to claim 1, which is characterized in that the fixing axle(13)
It is equipped with location hole(1301), the location hole(1301)Inside it is inserted with positioning pin(20), the turntable(18)With fixing axle(13)
The hole wall of contact is equipped with and positioning pin(20)The corresponding mounting hole in position(1802), the mounting hole(1802)Interior be equipped with can
Along fixing axle(13)The positioning wedge block of direction movement(21), the positioning wedge block(21)Top be connected with upwards be pierced by turn
Disk(18)And and turntable(18)The pull rod being slidably connected(22), the positioning wedge block(21)In pull rod(22)It can be incited somebody to action under pulling
It extend into mounting hole(1802)Interior positioning pin(20)It is detached from location hole(1301).
A kind of 3. adjustable oxygen face mask of oxygen concentration according to claim 1, which is characterized in that the clamping wedge block
(16)With inner sleeve(8)Contact surface is inclined arc surface.
A kind of 4. adjustable oxygen face mask of oxygen concentration according to claim 1, which is characterized in that the inner sleeve(8)'s
Lower part is equipped with annular protrusion, the pedestal(7)It is equipped with and extend into annular with the corresponding annular groove of annular protrusion, annular protrusion
Inner sleeve is formed in slot(8)With pedestal(7)The structure of rotation connection.
A kind of 5. adjustable oxygen face mask of oxygen concentration according to claim 1, which is characterized in that the humidifier
(2)Ejiction opening extend into mixing chamber(301)It is interior.
Priority Applications (1)
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CN201710643014.9A CN107376089B (en) | 2017-07-31 | 2017-07-31 | A kind of oxygen concentration adjustable oxygen mask |
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CN201710643014.9A CN107376089B (en) | 2017-07-31 | 2017-07-31 | A kind of oxygen concentration adjustable oxygen mask |
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CN107376089A CN107376089A (en) | 2017-11-24 |
CN107376089B true CN107376089B (en) | 2018-06-26 |
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CN201710643014.9A Active CN107376089B (en) | 2017-07-31 | 2017-07-31 | A kind of oxygen concentration adjustable oxygen mask |
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Families Citing this family (2)
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SE542751C2 (en) * | 2018-07-17 | 2020-07-07 | Mirola Ip Ab | Portable rebreathing system with staged addition of oxygen enrichment |
CN110215582B (en) * | 2019-05-27 | 2021-05-28 | 中山大学孙逸仙纪念医院 | Personal medical oxygen-generating respirator |
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CN101015720A (en) * | 2007-02-09 | 2007-08-15 | 吴迪 | Artificial nose |
CN101244306A (en) * | 2008-03-13 | 2008-08-20 | 常俊 | Control method for flow capacity and oxygen concentration of breathing machine, and device thereof |
CN102366647A (en) * | 2011-10-28 | 2012-03-07 | 北京神鹿腾飞医疗科技有限公司 | CPAP (Continuous Positive Airway Pressure) oxygen supplying instrument with double oxygen sources |
CN204582196U (en) * | 2015-02-09 | 2015-08-26 | 杜培兰 | A kind of nursing oxygen inhalation adjuster |
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US7069929B2 (en) * | 2000-02-01 | 2006-07-04 | Quadrant Technologies Limited | Dry powder inhaler |
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CN101015720A (en) * | 2007-02-09 | 2007-08-15 | 吴迪 | Artificial nose |
CN101244306A (en) * | 2008-03-13 | 2008-08-20 | 常俊 | Control method for flow capacity and oxygen concentration of breathing machine, and device thereof |
CN102366647A (en) * | 2011-10-28 | 2012-03-07 | 北京神鹿腾飞医疗科技有限公司 | CPAP (Continuous Positive Airway Pressure) oxygen supplying instrument with double oxygen sources |
CN204582196U (en) * | 2015-02-09 | 2015-08-26 | 杜培兰 | A kind of nursing oxygen inhalation adjuster |
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