CN1739815A - Oxygen transfer system - Google Patents
Oxygen transfer system Download PDFInfo
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- CN1739815A CN1739815A CN 200410057894 CN200410057894A CN1739815A CN 1739815 A CN1739815 A CN 1739815A CN 200410057894 CN200410057894 CN 200410057894 CN 200410057894 A CN200410057894 A CN 200410057894A CN 1739815 A CN1739815 A CN 1739815A
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- oxygen
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Abstract
The oxygen conveying system for patient includes one slender support with end part and capable of being fixed on head of the patient and extended from one side to the other; one support arm; one fixer to fix the support arm to one end of the support so as to make the support arm move relatively to the support direction and be located reliably in the required position; one oxygen conveying pipe; one oxygen conveying unit fixed to one end of the one oxygen conveying pipe; one detachable unit to fix the oxygen conveying pipe to the support arm; and one detachable unit to fix the second end of the oxygen conveying pipe to the oxygen supply source. When the slender support is set in place, the support arm supports the oxygen conveying pipe and the oxygen conveying unit in proper positions for supplying oxygen to the patient.
Description
Technical field
The present invention relates to a kind of new system that is used for oxygen delivery is arrived patient, relate to the system of a kind of alternative existing oxygen face mask and nasal intubation oxygen delivery system more specifically.
Background technology
Existing oxygen face mask comprises the structure of similar tent, and they usually adopt the elastic webbing that is positioned at a patient's ear or a back to be fixed on patient's the nose and mouth.Oxygen is fed into the face shield bottom that is positioned at the patient front from supply source by a pipe.But there are many problems in this face shield, comprise that many patients find to cause claustrophobia, face shield to take off so that patient speaks and eats, thereby interrupted treatment, and because patient expired air and the oxygen mix in the face shield cause face shield that patient is produced irregular oxygen input.
Existing nasal intubation oxygen delivery system adopts oxygen conveying pipe, has tubulose, open ended nose jaw, the nostril that is used to insert patient at the delivery end of pipe.Oxygen conveying pipe and nasal intubation are by fixing on the throne around the pipe of patient's ear or head winding, and this system applies downward pressure to patient's ear when patient is in state in place, make this system be difficult to handle and feel under the weather.And, because the drying of nasal intubation usually causes patient's epistaxis.
Authorize the related background art U.S. Patent No. 6 of Ketchedjian June 19 calendar year 2001,247,470 describe and have shown a kind of oxygen delivery device, comprise adhering to pivotly so that Xuan Zhuan earphone and have the flexible arm that is used for oxygen is sent to the tubular part of patient's mouth in one plane.This device also is provided with carbon dioxide monitoring system.
Authorized the U.S. Patent No. 6 of McCombs etc. on May 23rd, 2000,065,473 have described a kind of similar device, be used for non-medical purpose, and be used for concentrate oxygen is distributed to the user, this device comprises an oxygen delivery mouth of installing by the arm that extends from the flexible head band, and patient's nose and mouth are washed in the oxygen.On April 7th, 1994, disclosed German patent application DE4307754A1 disclosed a kind of system that is used for controlled supply or drains breathing gas from the user, this system comprises by rigid air guarantees the mouth that is held in the user and/or the mask body on the nose, air hose is pivotal adjustment in one plane, is in suitable position to guarantee face shield.
Authorized the U.S. Patent No. 3 of Cotabish on August 15th, 1972,683,907 describe and have shown a kind of fresh air breather that is for example used by the miner, but it comprises the cup cover that the pivotal arm by the facial the place ahead of user supports, and air-flow is directed to the cup cover so that provide fresh air around the nose of user and mouth.
The applicant has also developed the multiple patient's of being used for light oxygen delivery system, for example is described in the U.S. Patent No. 6,450,166 of 6,675,796 and 2002 years JIUYUE of U.S. Patent No. mandate on the 17th of authorizing on January 13rd, 2004.And, the U.S. design patent D449 that 16 days Augusts in 2004 of applicant authorize, 376 and the U.S. design patent D449 that authorizes October 30 calendar year 2001,883 have also shown this Design of device.The disclosed oxygen disperser that is designed for formation turbulent flow Oxygen Flow of all these lists of references in use is arranged on the place ahead of patient's nose and mouth, and remain on this zone by the installed part such as headband, a rigidity but flexible oxygen conveying pipe are fixed on the headband.In U.S. Patent No. 6,450, among the embodiment of 166 descriptions and device shown, stay pipe can in one plane rotate, and is positioned properly to help bubbler.
Other related background art comprises the U.S. Patent No. 4 that on April 19th, 1977 was authorized Zidulka, 282,869, authorized the U.S. Patent No. 5 of Landis etc. on November 18th, 1997, authorized the U.S. Patent No. 4,465 of Koch on August 4th, 687,715,1984,067 and 1977 on December was authorized the U.S. Patent No. 5 of Hart in 16,697,363, these document descriptions and having shown are used for the dissimilar head erecting device that delivering oxygen or other gas are given patient.
Being used for delivering oxygen facilitates for health care workman and patient for the device of patient's most prior art to use and reliability, can not prevent accidental, can not use widely according to the health care requirements of one's work.And cost and economy are the indeterminable key factors of these one type of prior art syringe, and the device of most prior art provides simple function, and are abandoned fully after patient uses usually.
Summary of the invention
The purpose of this invention is to provide a kind of more multipurpose to patient's delivering oxygen, more economical and more feasible system of being used for.
According to the present invention, provide a kind of patient's of being used for oxygen delivery system.This system comprises that have the end and be made into can be with respect to the removably fixed elongated support of patient head.When on the throne, this support extends to opposite side with respect to patient head from a side.A support arm is set, and has the device that support arm is fixed to an end of support so that support arm with respect to support universal relatively move and make support arm be positioned at desired location reliably with respect to supporting.Oxygen conveying pipe and patient's oxygen delivery device also are set are installed to described oxygen conveying pipe first end.Also be provided with the device that oxygen conveying pipe is releasably attached to support arm.And the device that oxygen conveying pipe second end is releasably attached to the oxygen supply source is set also.When elongated support was on the throne, support arm was supported on correct position with oxygen conveying pipe and patient's oxygen delivery device, is used for supplying with oxygen to patient.
In one embodiment of the invention, the oxygen delivery device be fixed to first end of oxygen conveying pipe and be communicated with it so as in this system work process to the nasal intubation of patient's delivering oxygen.
In another alternate embodiment, the oxygen delivery device is the oxygen bubbler unit that is fixed to first end of oxygen conveying pipe, this oxygen bubbler unit comprises the body with wall, described wall has the inner surface of concave structure substantially, and limit an oxygen outlet that is provided with placed in the middle, described oxygen outlet is communicated with and leads to concave inside surface with described oxygen conveying pipe, so that when work with Oxygen Flow from oxygen outlet lead substantially patient's nose and mouth, described oxygen bubbler unit also comprises baffle plate, described baffle plate is arranged in concave wall and is in the path of oxygen bubbler cell operation process from the Oxygen Flow of oxygen outlet discharge, helps oxygen to mix with surrounding air with turbulization, and the mushroom-shaped post that produces oxygen-enriched air flows.
Preferably, the device that is used for support arm is fixed on the elongated support is ball and socket structure.
The elongated support that is used for removably being fixed to patient head can be crooked elasticity headband or elongate resilient pipe, and this elongate resilient control makes and is positioned at the patient head back and in this system work process on patient's ear.
Oxygen delivery system according to the present invention provides a kind of very multiduty, wield, economic and comfortable system that is used for to patient's delivering oxygen.This system is easy to be fit to the patient of different size.It can interconnective structure make the multiple structure that can adopt the many formations in the same components for different patients.
Description of drawings
By the detailed description below in conjunction with accompanying drawing, these and other advantage of the present invention will become more obvious.Wherein:
Fig. 1 is the axonometric chart that an embodiment who plays the oxygen delivery system of oxygen bubbler effect according to the present invention is in the position on the patient head;
Fig. 2 is the unitary cross-sectional view of bubbler along Fig. 1 of the line 2-2 intercepting of Fig. 1;
Fig. 3 is the axonometric chart according to the alternate embodiment of system of the present invention, has shown a kind of nasal intubation structure;
Fig. 4 is an axonometric chart according to another embodiment of the present invention, has shown the unitary alternative structure of oxygen bubbler that comprises the carbon dioxide detecting unit;
Fig. 5 is the cross-sectional view along the unitary form of distortion a little of bubbler of Fig. 4 of the line 5-5 intercepting of Fig. 4;
Fig. 6 and 6a are the partial perspective views of the structure that is connected with joint of ball according to the present invention.
Although invention has been described in conjunction with illustrated embodiment, it should be understood that not to be to limit the invention to these embodiment.On the contrary, it will comprise all replacements, modification and the equivalent in the spirit and scope of the invention defined by the claims.
The specific embodiment
In the following description, the similar characteristics in the accompanying drawing adopts like numerals will to represent.
Referring to Fig. 1, shown patient's oxygen delivery system 2.This system comprises the elongated support that is headband 4 forms, and it has pliability a little and is made into removably fixing with respect to patient head.The end 6 of headband 4 is used for cosily being positioned at as shown in the figure the patient head either side.The support arm 8 of a hollow is pivotally mounted on one of end 6 of headband 4, so that can move everywhere with respect to headband 4.Being connected of ball 10 and joint 12, (Fig. 6 a) realized this purpose.Ball 10 frictional fit fully makes and support arm can be fixed on specific desired location reliably with respect to headband 4 in joint 12.
Pliable and tough oxygen conveying pipe 14 with the tinsel 16 that is embedded in wherein is arranged to, and makes the flexible one-tenth given shape of oxygen conveying pipe and keep this shape.Existing bubbler unit 18 is as the oxygen delivery device of this embodiment of the invention.Bubbler unit 18 is fixed to oxygen conveying pipe 14 1 ends and comprises rigidity ancon portion 20, and ancon portion 20 is provided with the oxygen delivery passage 22 that extends to the other end from ancon portion one end.Oxygen conveying pipe 14 is communicated with this passage 12.Bubbler body 24 is rotatably fixed to the other end (Fig. 2) of ancon portion 20, and bubbler body 24 has the wall 26 of cup-shaped outward appearance, and wall 26 extends from the base portion 28 that limits oxygen outlet 30, and oxygen outlet 30 is communicated with the oxygen delivery passage 22 of ancon portion 20 again.Wall 26 extends from this base portion, outwards the edge 32 of flare up triangular perimeter profile.Peripheral corners 34 is circular, and making one of them bight 36 in use is bights of topmost, and the neighbouring part of mural margin 32 is heaved with respect to the adjacent wall marginal portion of other bight and they as shown in the figure, helps oxygen lead patient's nose and mouth.Make the neighboring edge of outstanding bight 36 and wall 26 be positioned near the position of patient's nose and wideer triangle sides is positioned near this structure of the bottom of patient's mouth in use and guaranteed optimization to patient's delivering oxygen.
A mushroom-shaped baffle plate 37 is positioned on the oxygen outlet 37, helping the diffusion of turbulization and oxygen, and prevents that oxygen from directly flowing to patient's face.Baffle plate 37 comprises with respect to oxygen outlet 30 and is centrally located on pillar 36 in the body 24, and pillar has a top 38 on its top, and top 38 has the conical skirt section 40 of curling backward.This structure of baffle plate 37 has hindered the flow of oxygen from bubbler body 24 rear portions, makes the transmission of oxygen become turbulent flow from injection.
The alternative structure of oxygen delivery device is the nasal intubation 48 of Fig. 3.This is a kind of existing nasal intubation, and it has the nose jaw 50 that is used to insert patient's nose, and oxygen flows to patient by the nose jaw.Nasal intubation 48 is fixed to an end of oxygen conveying pipe 14 as shown in figure, and the other end of oxygen conveying pipe 14 is detachably fixed to oxygen supply pipe 44 from oxygen supply source (not shown) by erecting device 46.And as the bubbler 18 of Fig. 1 and 2, nasal intubation 48 itself can be releasably attached to the other end of oxygen conveying pipe 14, so that it can break away from oxygen conveying pipe 14.According to these modes, nasal intubation 48, nose or oxygen conveying pipe 14 can be replaced.
In Figure 4 and 5, shown another embodiment of bubbler 18.Although bubbler body 24 is similar to the bubbler body of Fig. 1 and 2, ancon portion 20 not only comprises oxygen channel, comprises that also the passage 56 ancon portions 20 that are used for carbon dioxide and detect (removably or non-dismountable ground) are fixed to oxygen conveying pipe 14 1 ends.The inner surface of bubbler body 24 limits the oxygen outlet 30 of bubbler equally, and Oxygen Flow is outwards guided substantially from bubbler 18.Dismountable erecting device 46 can be arranged on oxygen conveying pipe 14 other ends, so that bubbler 18 and oxygen conveying pipe 14 can take off and be changed by other suitable oxygen conveying pipe and oxygen delivery device.
But, also in the cup-shaped wall 26 of bubbler 18, medially being provided with carbon dioxide inlet 58, the carbon dioxide inlet is by spill, preferably hemispherical (Fig. 4) or conical (Fig. 5) wall 60 form.As shown in Figure 5 carbon dioxide inlet 58 has occupied the sizable part of bubbler body interior of the bubbler identical with the bubbler 18 of Fig. 1 and 2, so that bubbler unit 18 has bigger pliability, bubbler body 24 and carbon dioxide inlet wall 60 are fixed to an end of ancon portion 20, so that can rotate 360 ° around it.Like this, can obtain the appropriate orientation of bubbler body 24 with respect to patient's nose and mouth.
The wall 60 of carbon dioxide inlet 58 limits carbon dioxide inlet 58, and the carbon dioxide inlet is communicated with carbon dioxide sense channel 56 in being formed on ancon portion 20.Carbon dioxide sense channel 56 is separated and is not communicated with the oxygen delivery passage 22 in the ancon portion 20.The other end at carbon dioxide sense channel 56 is a carbon dioxide detector tube 62, and when this system of use, the carbon dioxide detector tube is connected to carbon dioxide detector (not shown).Like this, patient expired carbon dioxide can be collected by carbon dioxide inlet 58 near patient's nose and mouth, and being sent to the carbon dioxide detector, oxygen is transported to patient's nose and mouth zone by oxygen conveying pipe 14 and oxygen bubbler 18 from oxygen supply source (not shown) simultaneously.Shown in Figure 4 and 5, preferably, carbon dioxide inlet wall 60 stretches out and exceeds the edge of bubbler body wall 26.Test is found, this ad hoc structure of bubbler body and carbon dioxide inlet wall provides and has stopped for producing required oxygen turbulent flow, so that the available oxygen gas column that is transported to patient's nose and mouth zone stream to be provided, can carry out effective carbon dioxide to patient expired breath simultaneously and detect.
Although being shown in more detail in the structure of ball 10 among Fig. 6 and the 6a and pod 12 is generally suitable for support arm 8, oxygen conveying pipe 14 and oxygen delivery device are remained on the correct position that patients uses, by producing the base portion that hemispherical deformable packing ring 64 that friction material makes can be positioned at ball, make its concave surface can be in placely be assemblied in ball on the counterpart of outside of pod cooperate.Like this,, can in the structure of ball and pod, obtain bigger rigidity, therefore, make support arm be difficult to more move from its relative position with respect to head support in case support arm is positioned properly.
Be understood that, oxygen delivery system 2 according to the present invention provides basic structure (head support, support arm and the universal joint between the two), and it is easy to make the dissimilar oxygen delivery device such as nasal intubation and oxygen bubbler to be used as required, to change and change.Therefore, the kit that has the headband 4 of the support arm 8 that can universally be fixed movably or be positioned at the pipe 56 of head back can be provided with polytype oxygen delivery device, such as the bubbler unit 18 and the nasal intubation 48 that are detachably fixed to oxygen conveying pipe 44 and keep by support arm 8.Except multipurpose, according to system of the present invention the stock of hospital and other health care structure is saved significantly, because can be repeated to use or be equipped with different oxygen delivery devices according to patient's needs such as the unitary assembly of head support and support arm.
Therefore, provide a kind of patient's oxygen delivery system that satisfies above-mentioned purpose of the present invention, target and advantage fully according to the present invention.Although invention has been described in conjunction with illustrated embodiment, manyly substitute, revise and distortion it will be apparent to those skilled in the art that according to foregoing description.Therefore, the present invention will comprise that all that be positioned at spirit and scope of the invention are this and substitute, revises and distortion.
Claims (20)
1, a kind of oxygen delivery system that is used for patient, this system comprises:
(a) have end and be made into can be with respect to the removably fixed elongated support of patient head, when on the throne, this support extends to opposite side with respect to patient head from a side;
(b) support arm;
(c) support arm is fixed to the device of an end of support so that support arm with respect to support universal relatively move and make support arm be positioned at desired location reliably with respect to supporting;
(d) oxygen conveying pipe;
(e) be installed to patient's oxygen delivery device of described oxygen conveying pipe first end;
(f) oxygen conveying pipe is releasably attached to the device of support arm; And
(g) oxygen conveying pipe second end is releasably attached to the device of oxygen supply source;
When elongated support was on the throne, support arm was supported on correct position with oxygen conveying pipe and patient's oxygen delivery device, is used for supplying with oxygen to patient.
2, the system as claimed in claim 1 is characterized in that, patient's oxygen delivery device comprise described first end that is fixed to oxygen conveying pipe and be communicated with it so as in this system work process to the nasal intubation of patient's delivering oxygen.
3, system as claimed in claim 2 is characterized in that, oxygen conveying pipe is to make by wherein being embedded with flexible plastic wiry, so that the flexible one-tenth given shape of oxygen conveying pipe and keep this shape.
4, the system as claimed in claim 1, it is characterized in that, patient's oxygen delivery device comprises the oxygen bubbler unit of described first end that is fixed to oxygen conveying pipe, described oxygen bubbler unit comprises the body with wall, described wall has the inner surface of concave structure substantially, and limit an oxygen outlet that is provided with placed in the middle, described oxygen outlet is communicated with and leads to concave inside surface with described oxygen conveying pipe, so that when work with Oxygen Flow from oxygen outlet lead substantially patient's nose and mouth, described oxygen bubbler unit also comprises baffle plate, described baffle plate is arranged in concave wall and is in the path of oxygen bubbler cell operation process from the Oxygen Flow of oxygen outlet discharge, helps oxygen to mix with surrounding air with turbulization, and the mushroom-shaped post that produces oxygen-enriched air flows.
5, system as claimed in claim 4 is characterized in that, oxygen conveying pipe is to make by wherein being embedded with flexible plastic wiry, so that the flexible one-tenth given shape of oxygen conveying pipe and keep this shape.
6, system as claimed in claim 4, it is characterized in that, baffle plate comprises pillar, pillar one end is medially located with respect to oxygen outlet, the pillar other end is fixed a top, described top has the conical skirt section of curling backward, and the inboard, skirt section is arranged in the path of oxygen bubbler cell operation process from the Oxygen Flow of oxygen outlet discharge, with turbulization.
7, system as claimed in claim 4, it is characterized in that, baffle plate has concave wall and medially is fixed in the bubbler body wall, the carbon dioxide inlet is arranged in the concave wall of baffle plate, oxygen bubbler unit also is provided with the carbon dioxide detector tube that is communicated with the carbon dioxide inlet, is used at this system work process patient expired carbon dioxide being sent to the carbon dioxide detector.
8, the system as claimed in claim 1 is characterized in that, the elongated support that is used for removably being fixed to patient head comprises crooked elasticity headband.
9, the system as claimed in claim 1 is characterized in that, the elongated support that is used for removably being fixed to patient head comprises the elongate resilient pipe, and this elongate resilient control makes and is positioned at the patient head back and in this system work process on patient's ear.
10, system as claimed in claim 9 is characterized in that, elongate resilient control makes flexible one-tenth given shape and keeps this shape.
11, system as claimed in claim 2 is characterized in that, the elongated support that is used for removably being fixed to patient head comprises crooked elasticity headband.
12, system as claimed in claim 2 is characterized in that, the elongated support that is used for removably being fixed to patient head comprises the elongate resilient pipe, and this elongate resilient control makes and is positioned at the patient head back and in this system work process on patient's ear.
13, system as claimed in claim 4 is characterized in that, the elongated support that is used for removably being fixed to patient head comprises crooked elasticity headband.
14, system as claimed in claim 4 is characterized in that, the elongated support that is used for removably being fixed to patient head comprises elongated tubular, and this elongated tubular is made into and is positioned at the patient head back and in this system work process on patient's ear.
15, the system as claimed in claim 1 is characterized in that, the device that is used for support arm is fixed on the elongated support is ball and socket structure.
16, system as claimed in claim 15 is characterized in that, the packing ring that produces friction is between ball and pod, so that reduce moving unintentionally of ball and pod when support arm is in desired location with respect to elongated support.
17, a kind of kit of giving patient's delivering oxygen, this kit comprises:
(a) have end and be made into can be with respect to the removably fixed elongated support of patient head, when on the throne, this support extends to opposite side with respect to patient head from a side;
(b) support arm;
(c) support arm is fixed to the device of an end of support so that support arm with respect to support universal relatively move and make support arm be positioned at desired location reliably with respect to supporting;
(d) one or more oxygen conveying pipes of from the group that comprises following assembly, selecting: be fixed to first end of oxygen conveying pipe and be communicated with it so as in this system work process to the nasal intubation of patient's delivering oxygen; Oxygen bubbler unit with first end that is fixed to oxygen conveying pipe, described oxygen bubbler unit comprises the body with wall, described wall has the inner surface of concave structure substantially, and limit an oxygen outlet that is provided with placed in the middle, described oxygen outlet is communicated with and leads to concave inside surface with described oxygen conveying pipe, so that when work with Oxygen Flow from oxygen outlet lead substantially patient's nose and mouth, described oxygen bubbler unit also comprises baffle plate, described baffle plate is arranged in concave wall and is in the path of oxygen bubbler cell operation process from the Oxygen Flow of oxygen outlet discharge, helps oxygen to mix with surrounding air with turbulization, and the mushroom-shaped post that produces oxygen-enriched air flows;
(e) one of oxygen delivery device is releasably attached to the device of support arm; And
(f) oxygen conveying pipe second end is releasably attached to the device of oxygen supply source;
When elongated support was on the throne, support arm was supported on correct position with oxygen conveying pipe and patient's oxygen delivery device, is used for supplying with oxygen to patient.
18, kit as claimed in claim 17 is characterized in that, the elongated support that is used for removably being fixed to patient head comprises crooked elasticity headband.
19, kit as claimed in claim 17, it is characterized in that, the elongated support that is used for removably being fixed to patient head comprises the elongate resilient pipe, and this elongate resilient control makes and is positioned at the patient head back and in this system work process on patient's ear.
20, kit as claimed in claim 19 is characterized in that, elongate resilient control makes flexible one-tenth given shape and keeps this shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410057894 CN1739815A (en) | 2004-08-26 | 2004-08-26 | Oxygen transfer system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410057894 CN1739815A (en) | 2004-08-26 | 2004-08-26 | Oxygen transfer system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1739815A true CN1739815A (en) | 2006-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410057894 Pending CN1739815A (en) | 2004-08-26 | 2004-08-26 | Oxygen transfer system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252008A (en) * | 2006-07-28 | 2013-08-21 | 雷斯梅德有限公司 | Delivery of respiratory therapy |
| CN104874134A (en) * | 2015-05-28 | 2015-09-02 | 苏州美瑞康医疗科技有限公司 | Gas conveyer |
| CN104984489A (en) * | 2015-07-17 | 2015-10-21 | 苏州美瑞康医疗科技有限公司 | Wearable air purification device and purifier comprising same |
| CN107106807A (en) * | 2014-12-18 | 2017-08-29 | 皇家飞利浦有限公司 | Adjustable airflow diffuser |
-
2004
- 2004-08-26 CN CN 200410057894 patent/CN1739815A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252008A (en) * | 2006-07-28 | 2013-08-21 | 雷斯梅德有限公司 | Delivery of respiratory therapy |
| CN107106807A (en) * | 2014-12-18 | 2017-08-29 | 皇家飞利浦有限公司 | Adjustable airflow diffuser |
| CN104874134A (en) * | 2015-05-28 | 2015-09-02 | 苏州美瑞康医疗科技有限公司 | Gas conveyer |
| CN104984489A (en) * | 2015-07-17 | 2015-10-21 | 苏州美瑞康医疗科技有限公司 | Wearable air purification device and purifier comprising same |
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