JPS59502056A - Oxygen therapy methods and devices - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Oxygen therapy methods and devices Background of the invention The invention described herein is primarily intended for use in oxygen therapy,1 but may be used in other ways. The present invention relates to an improved method and device that can also be used for the administration of drugs.

Delivering oxygen to the patient at all times to maintain a given or desired oxygen concentration in the patient's blood One of the oldest methods of Placed in close proximity to the patient's nose, the patient then inhales, exhales and then directs the patient to the delivery structure. Includes constant supply of metered or controlled oxygen. supply oxygen This method is undoubtedly very practical. It also achieves the desired oxygen concentration of the blood relatively undesirable due to the amount or amount of oxygen that must be utilized to . This is because this type of procedure usually results in a significant amount of oxygen leaking into the ambient air and being carried by the patient. This is because it is not used effectively.

Of course, there are many variations on the type of procedure described above. Therefore, for example, - A nucleator is used to maintain an oxygen-enriched atmosphere that completely surrounds the patient's head. It is well known that it can be used instead of a so-called "tent". Also, for patients only during inhalation. Utilizes various mechanical or fluid diversion mechanisms or structures intended to supply oxygen. It is known that Many of such traditional structures are Constructed to cause some or partial rebreathing.

Fortunately, an understanding of the invention does not require a detailed explanation of all the various devices of the latter type. There is no. Such devices are often inconveniently large in nature; Often had relatively complex properties.

As a result of their complexity, they are often undesirable and expensive to manufacture. So They are often used or used in a national context, and at other times they are more or less impractical. won. These have mechanical or fluid parts that control the delivery of oxygen to the follicle. The device is capable of producing the necessary amount of acid to maintain the desired oxygen concentration in the blood. It does not appear to have been constructed to effectively minimize elementary quantities.

As a result of these considerations, it appears that improvements related to oxygen injection are necessary.

More specifically, what is required to maintain the required or desired oxygen/IF+ level in the blood? Both new methods of delivering oxygen and new equipment that minimize the amount of oxygen There seems to be a demand for this. In addition, both have simple characteristics and are relatively inexpensive to manufacture. A method that compares and contrasts the types of mechanical problems that tend to hinder utilization. and equipment.

Summary of the invention A broad object of the invention is to meet the requirements outlined above.

The present invention therefore delivers oxygen to the patient and at the same time maintains the desired oxygen content in the patient's blood. Proposal of both new methods and new devices that minimize the amount of oxygen required to maintain intended to serve as a gift. The present invention provides a method for administering oxygen or other gases or gases other than oxygen or oxygen mixtures to the patient. Although it is not intended to be used to deliver a mixture, the use You should be proud that you can do it.

The present invention is also designed for use in the delivery of oxygen, is relatively simple, and It is usually relatively small and has a shape adapted to the patient's needs, and is relatively cost-effective and accommodating. It is easy and convenient to manufacture and allows any kind of mobile mechanical structure to be delivered to the patient without having to handle it. It is intended to provide an instrument or device that is advantageous in that it is more usable. The present invention is particularly suitable for long-term It is intended to provide a device as described in the above discussion that can be used without maintenance for a long time.

The present invention also provides a new and improved method as shown which has relatively simple features. Map out the offer. As a result of the simplicity of the present invention, this method allows the device used to be Once it is placed in the desired operating position, it will be activated during breathing. As a result, this person The implementation or ease of implementation of the process may be particularly important if restricting the patient's movements. An unfavorable environment, or fool's breath, or unmonitored conditions, such as sleeping in a dormitory. Recommended for use in harsh environments.

Aspects of the invention with respect to the method include: This is achieved by providing a method of oxygen therapy that supplies oxygen to the nostrils of the person The structure has an internal volume 2, and at least a portion of the internal volume is normally said change that can change in response to the force resulting from the movement of gas by said person inhaling The part that can be inserted into the interior of the structure has a volume smaller than the volume of the airway of the person. Supply oxygen continuously, and the volume of oxygen supplied is equal to the volume inhaled by said person. The volume of the structure is smaller than that of the gas exhaled during the breathing cycle. Rather than being exhaled; Gas is preferentially inhaled from within the structure rather than being inhaled from the surroundings. is arranged with respect to said person's nose, and said method is adapted to each inhalation = exhalation breath of said person. During the cycle, said structure takes precedence over the inhalation of ambient air at the beginning of the inhalation cycle. Inhale one volume of oxygen-enriched gas from inside the object and at the same time inhale the internal volume of said structure. 1# corresponding to the amount of gas introduced 2, the ambient air and the inside of the structure Finish each inhalation by inhaling both gases at the same time. The called group at the beginning of the call The internal volume of the variable part is changed by using the force generated from the breath for 4 cycles. into the structure, increasing the star corresponding to the volume of oxygen-enriched gas previously inhaled. The exhaled gas is mixed with oxygen introduced into the structure during the entire exhalation cycle. forming a volume of oxygen-enriched gas within said structure for use at the beginning of inhalation; During this part of the exhalation cycle, no one exhales gas into the structure and exhales into the structure. By leaking into the surroundings the gas released from said structure as a result of the introduction of oxygen. It involves what is done by step 9, which ends the calling cycle.

Aspects of the present invention relating to devices include a device and front for delivering oxygen to the nose of a user of the device. Intended for use in oxygen therapy, including equipment for supplying oxygen to equipment for transporting oxygen. This is achieved by providing a device for each step, wherein the device has an internal volume. , at least in part resulting from the movement of gases as the user of the device breathes. It can change to increase or decrease in response to force, and said changeable part is said person's airway. including a structure having a smaller volume, the delivery device being exhaled between breathing cycles. Gas is exhaled into the structure preferentially than exhaled into the surroundings, and between inhalations It is used so that gas is inhaled preferentially from within the structure than from the surroundings. The delivery device is configured to be positionable relative to the user's nose, and the delivery device is configured to Gases drawn into the interior of a structure and locations where they are mixed as a result of contact with such gases. and a device connected to transport oxygen into the interior of the structure.

Brief description of the drawing Because of the general nature of the invention, it is best described with reference to the accompanying drawings. It is.

FIG. 1 is a diagram of one form of the device according to the invention, and FIG. 2 is a diagram of one form of the device according to the invention. FIG. 3 is a diagrammatic representation of a further modified form of the device according to the invention; FIG. 4 is a diagram of a further modified form of the device according to the invention. , FIG. 5 is a schematic diagram of another modified device according to the invention.

The various embodiments shown in the drawings may be used to illustrate the principles of various structures or devices for carrying out the invention. intended to illustrate concepts. Each of the various items shown has the same effect on the other items shown. Each may have one or more advantages over the other. These advantages However, the use of a particular structure depends on the needs or desires of a particular person. Concerning utility and benefit. For this reason, one particular one of the devices shown is always preferred over the other. It would not be accurate to show.

The drawings may show all detailed aspects and features of any particular device of the invention. Not intended. As will be apparent from a consideration of the claims forming a part of this specification. , the present invention is capable of making a wide variety of devices by using or performing routine engineering techniques. A comprehensive overview that can be used within or within items of various appearances and different configurations. Concerning thoughts. Various such devices have different advantages. As a result, those Some are more suitable for some applications than others.

detailed description FIG. 1 shows a device IO according to the invention, both connected to a long tube 12. It includes a set or pair of conventional nasal cannulae 11 tied together. In this m tube 12, adapted to be used to continuously supply oxygen to the device 10 at a constant rate An artificial or inlet tube 13 is provided. Normally, this pipe 13 is connected to a compressed oxygen tank (Fig. (not shown) or other oxygen sources, a conventional flow control fill valve (not shown) and pressure They are connected via a force regulator (not shown).

The distal end 14 of the conduit 12, which is far from the cannula 11, is as in the device ]0. , a very free, loose-type, non-constricting bag that can assume a loose bag shape. It is always connected to a lightweight, air-impermeable diaphragm 15. This diaphragm is preferably thin and impermeable made of lightweight materials or synthetic combs. Even if it is a little elastic in nature It may also be elastic. This bag usually has a material that serves to protect it from being damaged. protected by hole housing 16;

The nature of this diaphragm 15 is of vital importance to the invention. For its function in device 10 This can be compared to a weightless piston with no theoretical friction in a no-lifter. That is device 1 The volume changes due to the force generated from the movement of gas caused by the user's breathing. It must be able to expand and contract accordingly. The forces involved in such movements are typically used passing through the device 10 or appearing in the person's nostrils (not shown). is smaller by an amount commensurate with the loss of energy due to the movement of gas within. This is a device It is believed to be best explained by discussing the use of 10.

When this device 10 is used, the cannula 11 allows the exhaled gas to gas from the device 10 is inhaled through this cannula 11 during inhalation. The device is inserted into the user's nostril (not shown) so that it is in a position such that crab [K,-R] 1 must not completely block or seal the user's nostrils. rather , they are placed around or with the cannula and the user's nose when using the device 10. spaced with respect to the user's nostrils to allow flow between the interior of the orifice (not shown). must be kept apart. Because human nostrils are not round in shape, such Achieving flow presents no problems when using a regular round cannula.

The method of fitting canyule 11 is to achieve what is shown as a preferential flow. Totally important. When the device 10 is first used, the cannula 11 shows In addition, oxygen in a very low flow layer as described below is supplied via tube 13. This fills the device 10 and increases the internal volume within the device 10. There is a tendency for the diaphragm 15 to expand in such a manner. At this point, the person using device 10 is When inhaling, a person inhales a volume of gas corresponding to the volume in which the diaphragm 15 expands. do. Of course, this volume also corresponds to the volume in which the diaphragm can be deflated.

Due to the position of cannula 11 at the beginning of inhalation, the person can This volume of gas is inhaled from within the device 1o preferentially than inhaling ambient air. child diaphragm 15 is used at the beginning of the inhalation to deliver what can be considered a mass of oxygen-enriched gas. move or deflate quite easily so that the gas is initially inhaled by a person is important. the lowest part of the airways in the lungs where the initially inhaled gas transfers oxygen to the blood It tends to be a gas that reaches the area.

When this initial mass or amount of gas from within the device IO is in the airway, the respiratory cycle can be drawn from the device 10 into the airway by breathing during the remaining inhalation section of the device. The additional gas corresponds to the amount of oxygen delivered to the device through tube 13. this A restricted or limited amount of gas is drawn into the body through the cannula 11 Because additional gas is needed to fill the airways, the breathing cycle changes to exhalation. It is sucked in from around the cannula 11 until the time.

The flow of oxygen causes expansion of the diaphragm 15 during this last part of the inhalation cycle. should not be at a pressure or amount that allows

During exhalation, the initial exhaled gas generally did not reach the lungs - 1 part of the airway It is in the second part of '. It is essentially the gas inhaled during the last part of the inhalation Contains an oxygen content of . This oxygen content, of course, increases in the tube during the last part of the inhalation. The gas displaced from conduit 12 by oxygen moving into apparatus 10 through 13 There will therefore be an enriched ambient air content. This initial amount of gas called out also The mass will, of course, become trapped within the device 10 as the septum 15 expands.

The gas that accumulates within the septum 15 during this initial part of exhalation is normally present at the end of the inhalation cycle. Instead, it includes the gas remaining in the device 10 and may actually consist entirely of that gas. It is permitted to do so. , this gas in the diaphragm 15 is not exhaled and captured. It may be possible to locate the device 10 in its interior portion closest to the cannula 11. The air is slightly enriched with oxygen (indifferently) and absorbs air from the surrounding area that does not reach the lungs. It is not important as long as it is configured so that it is included as

During exhalation, the device 10 is filled with exhaled air in two parts, while of course being filled with oxygen. flows into this device IO. To achieve such a flow, into the device lO It is necessary that the oxygen being transferred is at a pressure greater than the exhaled gas pressure during normal breathing. be. The oxygen flowing into this device 1o during this initial part of the exhalation cycle has already been This results in mixing with the gas present within the device 10 and the gas being pumped into it. rice cake Of course, this mixing gradually acidifies the gas within the device 10 during the first part of the exhalation cycle. Accompanied by enrichment.

After the septum 15 inflates during exhalation as the device 10 fills, the user's airway Additional flow into the device 1o from the leaks from around No. 11 to the surrounding area.

This last gas expelled into the environment is caused by the continuous υε flow of oxygen through tube 13. tend to be slightly diluted by the gas mixture from within conduit 12 as a result of the displacement . Furthermore, the last gas exhaled is the main by-product gas of the breathing cycle, carbon dioxide. Contains carbon. As a result, these gases are It does not remain in the "system" consisting of the user's respiratory system.

At this point, the user of device 10 begins the next breathing cycle, usually by inhalation.

This results in the use of #force and diaphragm 15 for L time and conduit 1 adjacent to cannula 11. Inhale a mass or amount of oxygen-enriched exhalation scum from within 2. At this point, the above process This cycle continues indefinitely while the device 10 is in use.

In order for the device 10 to function as described above, the capacitance caused by the movement of the diaphragm 15 must be The change in volume is smaller than the amount of debris that would otherwise be moved in and out of the airways of the user of this device. It is necessary to that using volumes of this latter magnitude is ineffective; and this volume is greater than the volume required in the airways to cover the alveolar membranes during inhalation. It is considered preferable to use a device 10 with ten bars so as not to be large. child This, of course, varies from patient to patient. Such volume usage goals are useful for oxygen therapy. Appropriately ensure that an effective amount of oxygen reaches only those parts of the lung where oxygen transfer occurs. It is to be. This is achieved because some gas remains in the airway after exhalation. It's difficult.

Of course, the higher the oxygen content of the debris mass received into the respiratory tract at the beginning of inhalation, the more The larger the callus mass, the more likely it is to reach the part of the lung where the alveolar membrane is located. The amount of oxygen is large. Star of dregs supplied to the user at the beginning of inhalation by the device 10 should be limited to ensure preferential movement of gas from within the device at the beginning of inhalation. It is. This amount is about 5 Qrrl! If larger, the gas and diaphragm 15 Due to the large inertia, the entire contents of this volume do not move properly into the airway at the beginning of inhalation. Rather, the oxygen-enriched gas mass flows around the outside of the cannula 11. Significant dilution by surrounding air slows the flow from the device 10 to the user.

When this happens, the initially inhaled gas can properly reach the alveolar membranes. will not have a high oxygen concentration. On the other hand, occupied by the device lO, also If the volume that can be delivered is too small, oxygen therapy will not be possible despite the oxygen content of this volume. It appears to contain so little oxygen as to be ineffective for the process. As a result, the device IO is reduced. It should be configured to deliver at least 3 m of oxygen-enriched gas mixture. . Currently, this value of oxygen-enriched gas is in the range of about 10 to 20 mβ, such that The use of the device 10 allows for a reduction in capacity without significant movement of waste or secondary ambient air. Favorable results are likely to be achieved because it can be moved easily and quickly.

For such an amount to be effective for oxygen therapy, the oxygen content must be suitable in the device 10. It is necessary that the cost be achievable. The total oxygen content of the volume within the device 10 is Of course, depending on this volume and the rate at which oxygen is introduced into it, as well as on the device 10. The captured scum mixes with oxygen as it flows into the device 10 and leaves the device. It changes depending on how you are kicked out. Oxygen enrichment within the device 10 without significant oxygen consumption A device between the oxygen inlet and the end of crab 1-11 (no compatibility) to obtain a mass of gas. The internal volume within the device is at least as large as the volume delivered to the user during inhalation. seems necessary. This normally occurs due to the expansion or contraction of the diaphragm 15. Corresponds to the product change.

Generally, the oxygen flow rate is increased adjacent to and within the cannula during the latter part of the exhalation cycle. The amount of gas delivered in the suction located in the part is at least 50% and 100% by weight The most efficient use of oxygen is when it is enriched with oxygen to have % less 4S oxygen. It is thought that this will occur.

If the latter degree of enrichment is achieved, oxygen may be lost unnecessarily to the surrounding air. . Currently, the oxygen content of the mass of iX emitted at the beginning of inhalation is approximately 80-98% by weight. It appears that favorable results are achieved when

In FIG. 2, a diaphragm 25 corresponding to the diaphragm 15 in the form of a sleeve is generally shown in an oxygen tank r123. and a conduit 22 with a cannula 21. shown. In this device 20, a preferred cage-like housing 26 holds the diaphragm 25. It serves to protect the body and prevent it from expanding to an undesirable degree. It comes.

FIG. 3 includes a cup-shaped housing 36 in which a porous wall 37 is extended. A further variant of the device 30 of the invention is shown.

A diaphragm 35 corresponding to the diaphragm 15 surrounds a non-porous housing part (not otherwise designated). is secured within this housing 3G. Inlet C] Pipe 33 passes into housing 36 , an outlet 38 is then provided for passage into the cannula 31. If you want this By arranging these cannulae 31 so as to extend directly from the housing 36, Wear. This device 30 is powered by the septum 35 in use or by oxygen entering at the end of exhalation. The nature of separating the exit 38 from the inlet 33 until it is isolated or fact-1- has. In this structure, the expansion of the diaphragm 35 is caused by its configuration or by the housing 36. can be controlled by the shape of the

These devices 10.20 and 30 all operate or operate in a virtually made. As a result, it seems unnecessary to explain their effects in detail. this The devices 10.20 and 30 differ from the other two devices 40 and 50 shown in the drawings. The other two devices do not use a nasal cannula, but at least the nose of the patient, often adapted to be placed over the patient's face to generally cover and surround the nose and mouth A perforated, somewhat cup-shaped enclosure or mask 41 and 51 is used.

These masks 41 and 51 are therefore 1. The fool called into it, and then sucked it in. It is used in the position when it should be inserted. These nose masks in the mouth that promote the satisfaction of fools Screws 41 and 5I should preferably be formed of soft, self-supporting deformable combs. It is.

In the apparatus 10, the mask 11 is inserted into the perforated housing 36 through the opening 42. connected to a septum/1.5 held within. The artificial oxygen tube 43 is the actual device 10 It is constructed like this and leads into the private pipe 42 in the same way as the menu. The device 50 is a mask 51 or a non-porous circle. It has a porous bottom 52 that passes through the cylindrical house sink wall 53, and the wall 53 has a perforated wall 54. The surroundings are slightly different. The diaphragm 55 expands the volume within the wall 53 adjacent to the wall 52. , are provided in the wall 53 so as to be movable to contract.

The side surface of the diaphragm 55 adjacent to the wall 52 (no sign) is used to continuously transport oxygen. ) provided above.

The action achieved during the use of these two devices 40 and 50 is similar to that of said device 10. The effect achieved in this connection is exactly the same. The main important difference is that these devices 40 and 50 did not use a nasal cannula and were therefore not likely to be encountered using such a cannula. problems encountered and complications avoided. The advantages of this type are cost, Costs 1-1 regarding the effectiveness and operation of locations 40 and 50 are achieved.

Because of their configuration and the method used, these devices 40 and 50 The amount or mass of gas initially exhaled at the exit is captured by the preferential flow and The remainder of the holes 47 located in the shell are located on the sides (not otherwise designated) of the masks 41 and 51. and 57 to the surroundings (opposite ψ. These devices 4o and 5° The initial mass or amount of gas inhaled at the beginning of the inhalation comes directly from At the same time, gas is introduced from the surrounding area through holes 47 and 57 (there is a ψ direction. In all respects these devices and 5° operate similarly to device 10.

Figure 4 and 1 show the configuration of the mask shown in Part 5. Suitably different acids which do not substantially destroy the called by-products obtained in 1O120 and 30. Efficiency of action cannot be achieved by direct administration of enriched gas masses or quantities. However, the device Devices corresponding to 40 and 50 or device 10. A more desirable environment than 20δ and 30 is very likely to exist.

The diaphragm 15 or the corresponding diaphragm used here is slightly elastic, b. With each bump, you can tense up a little while responding to the user's exhaled breath. than, to a lesser or limited extent, the device IO or any of the other different devices mentioned You can modify the action. Configuration of this type - ζ Inhalation device 10 or described As a result of the energy stored in one or more of the other devices in the can be returned to its initial shape. This is slightly beneficial as it makes inhalation easier. It appears to be.

Engraving (contents (no changes)) Mr. Manabu Shiga, Commissioner of the Patent Office 1. Case indication: PCT/US831014722, title of invention: Oxygen therapy Law and Apparatus 3, Persons Making Amendments Relationship to the case: Applicant Name: Phillips Robert E5 Date of amendment order: September 1, 1980 1st 6, Subject of amendment: Translated JR text of drawings and document international search report proving authority of agency Continuation of page 1 Priority claim ■ September 21, 1983 dispute United States (US) ■ 534378 ■Person: Tap Brian El, California, United States of America 9 1016 Los Angeles Airford, California 900450, United States ・Pool Bird 7661

Claims (1)

[Claims] 1. Supply oxygen to the nostrils of the person receiving treatment by receiving oxygen from a structure or acid source In the method of oxygen therapy, the structure has an internal volume, and at least Changes in response to forces resulting from the movement of particles by a person who is partially or normally breathing. combing, and said changeable portion has a volume smaller than the volume of said person's airway. , Above (14￥ Inside the building ＼ Oxygen is supplied continuously, and the volume of oxygen supplied is The structure is smaller than the volume of scum inhaled by the person in the breathing cycle. gases exhaled during the process are preferentially exhaled into the structure rather than being exhaled into the surroundings. and during inhalation preferentially from within the structure rather than being inhaled from the surroundings. positioned with respect to said person's nose such that gas is inhaled from said person; or during each inhalation-exhalation breathing cycle of said person, at the beginning of the inhalation cycle. one volume of oxygen-enriched gas from inside the structure in preference to inhalation of ambient air. inhaling the gas, and at the same time reducing the internal volume of the structure by an amount commensurate with the amount of gas inhaled; Inhalation is achieved by simultaneously inhaling ambient air and gas from inside the structure. Finished, Among the parts that can be changed using the force generated from the exhaled gas at the beginning of exhalation. The volume is increased during the breathing cycle by an amount commensurate with the volume of oxygen-enriched gas previously inhaled. The gas released into the structure is kept in the structure during the entire exhalation cycle. oxygen enrichment within said structure for use at the beginning of inhalation in combination with oxygen introduced into the The exhalation gas and exhalation are mixed to form a volume of gas and do not enter the structure. The introduction of oxygen into the structure during this part of the output cycle results in the introduction of oxygen from the structure. terminating the exhalation cycle by leaking the released gas into the surroundings; A method involving steps. 2. When the structure is placed with respect to the nose of the person, Do not completely fill the space between the nure and the nostril or completely block the flow. Claim 1, further comprising a nasal cannula that is fitted into the nostril of said person. the method of. 3. The volume of the above volume of oxygen-enriched gas is about 8 to 60 m7! and the volume of acid Claim 2, wherein the oxygen content of the enriched gas is about 50-100% by weight. Method. 4. The volume of the oxygen-enriched gas is about 10 to 20 mj! and the above content Claim 2, wherein the oxygen content of the oxygen-enriched gas is about 80-98%. Method. 5. iii. The structure of claim 5 includes a mask that covers at least a portion of said person. The method described in paragraph 1. 6. Claim 5, wherein the mask covers both the nose and mouth of the person. the method of. 7. The volume of the oxygen-enriched gas in the above volume is approximately 8 to 6 Q m (l, and the volume is Claim 5, wherein the oxygen content of the oxygen-enriched gas is about 50-100% by weight. How to put it on. 8. The volume of the oxygen-enriched gas is about 10 to 20 m1, and the volume of oxygen 6. The method of claim 5, wherein the oxygen content of the enriched gas is about 80-989%. 9. A device for transporting oxygen to the nose of the user of the device and a device for transporting the aforementioned oxygen. In equipment intended for use in oxygen therapy, including equipment for supplying oxygen to The device has content, information, at least a portion of which is breathable by the user of the device. can change to increase or decrease in response to the force generated from the movement of gas, and with said changes the transport device includes a structure having a volume smaller than the respiratory tract of said person; during the breathing cycle, the exhaled gas is preferentially pumped into the structure rather than being exhaled into the surroundings. gases from the structure during inhalation are superior to being inhaled from the surroundings. configured to be positionable with respect to the user's nose for pre-inhalation; supply equipment or in contact with gases and gases that are pumped into the interior of the structure during pumping. connected to transport oxygen into the interior of the structure at a location where it is mixed as a result of contact. equipment that includes 10. The device of claim 9, wherein the delivery device includes a nasal cannula. 11. The variable portion of the volume is about 8-5 Qm7! with a change in the amount of and the internal volume between the supply device and the transportation device is approximately 8 to 5 Q m + 2, The apparatus according to claim 10. 12. said variable portion of said volume is variable by an amount of about 10 to 20 mρ; Claims wherein the internal volume between the supply device and the transportation device is about 8 to 60 mff. 10. Apparatus according to paragraph 10. 13. The claimed delivery device includes at least a mask that can be delivered to the user's nose. Range No. 91J4. The device described. 14. Claim No. 1, wherein the mask is made to be delivered to the user's nose and mouth. The device according to item 13. 15. The variable portion of the volume is about 8 to 6 Qm (can be varied by the amount of 4, The internal volume between the supply device and the air transport device is approximately 8 to 60 m7! is, request The device according to item 13. 16. The variable portion of the volume is approximately 10-20 m1! can be changed by the amount of , an internal volume between the supply device and the transport device is about 8 to 60 mIf. The device according to item 13.