JPH07275361A - Respiration promoting device of respiration synchronization type - Google Patents

Abstract

PURPOSE:To provide a modified respiration promoting device of respiration synchronization type which reduces the uncomfortableness of user who is difficult to respire. CONSTITUTION:A respiration promoting device of respiration synchronization type is obtained in which an inhaling amount adjusting means 1 which adjusts the inhaling amount of an air blasting means 2 is provided at the inhaling side of the air blasting means, and the inhaling amount adjusting means substantially synchronizes with at least a part of the respiration cycle of a user using a nose mask means 6 to be able to adjust the inhaling amount.

Description

Detailed Description of the Invention

[0001]

The present invention relates to an atmosphere of 30 cmH ₂ O.
The pressure is increased to a certain degree and the nasal mask is used as an auxiliary means for breathing to supply the nostrils. Furthermore, in detail, as one method for treating sleep apnea syndrome, during sleep, pressurized air is sent into the respiratory airway through the nostril to maintain a positive pressure in the airway continuously, and A medical device provided to prevent a decrease in oxygen concentration in blood caused by respiratory arrest due to obstruction.

[0002]

2. Description of the Related Art In a conventional non-breathing type positive airway pressure type breathing assistance device (also referred to as a CPAP device), inhalation and insufflation (discharging) of a blowing means (blower, etc.) that generates a discharge pressure higher than atmospheric pressure. No member or mechanism capable of controlling the pressure level in the system is provided at any part on the () side.
Therefore, the prescription pressure of about 4 to ₂₀ cmH ₂ O, which is required to make the therapeutic effect sufficient for the user, that is, the pressure level in the system is uniquely set by the rotation speed of the blower. Has become. Incidentally, the advantage of this method even when intake of the user, normally, since it is capable of holding a high level of -3cmH ₂ O prescription pressure, is that there is a therapeutically effective preferable.

The conventional non-breathing type breathing assisting device has a drawback that it is difficult for the user to exhale during exhalation, but for the purpose of solving the drawback, a breathing synchronizing type positive airway type breathing assisting device. Is proposed.

The conventional respiratory-assisted positive airway pressure type respiratory assist device (hereinafter also simply referred to as respiratory assist device) is used during sleep, and the pressure at the nostril during use is 4 to 20.
It is often about cmH ₂ O. Originally, when using this device, a positive pressure is continuously applied to the nostril portion, and it is not preferable that positive pressure air leaks from the mask means, particularly the seal portion with the face. At this time, a large amount of leakage causes a significant decrease in positive pressure, the therapeutic effect cannot be expected, and further leakage to the eye part involves a risk of causing damage to the eye part. Therefore, the mask means is used together with the fixing means such as the headgear and the cap to the nostril.
The user needs to sufficiently fix the mask means by using the fixing means.

Further, another problem in using such a device is noise and vibration generated from the device. Since the device is usually used as a medical device for home treatment, and the usage time is from about 6:00 in the evening to about 9:00 in the next morning, the problem of noise should be solved technically. It's a big point.

A blower is often used as the blower, and its form is such that an aluminum impeller is housed in a case molded of plastic, and the aluminum impeller is a small DC brushless motor fixed to the plastic. It is fixed to the shaft. The outer diameter of the impeller made of aluminum at this time was 8 to 20 cm, and the total thickness was 7 to 25.
mm, and the number of blades provided between the upper and lower thin aluminum plates is 4 to 12 at this time.

In such a device, 4 to ₂₀ cmH ₂ O
In order to maintain the positive pressure condition of the blower continuously, the rotation speed of the aluminum impeller of the blower is 5000 to 10000.
High speed rotation of rpm. At this time, 10 at 20 cmH ₂ O
The noise level of the blower alone at a high speed of 000 rpm is as high as 60 to 63 dB (A). For this reason, in the conventional one-box type breathing entrainment type breathing assistance device, it is difficult to effectively utilize the sound absorption technology and the sound insulation technology.Therefore, the noise level after the blower is housed in the one-box type housing is reduced. Is 40-5
It remained at a high level of 0 dB (A), resulting in hindering the user's sleep.

Further, the conventional system for setting the system pressure in the breathing-type breathing assist apparatus is a high pressure close to 1.25 times the highest prescribed pressure (about 20 cmH ₂ O) therapeutically required at the time of inspiration. A method is adopted to control the pressure in the system during intake by setting and discharging the excess air in the system during intake through the relief valve for compressed air attached to the air supply side of the blower to the outside of the system. There is. That is, the rotation speed of the blower is set to a high level of 12000 rpm, and a fixed rotation speed system is adopted.

In such a conventional system, the blower is 1
A high rotational speed of 2000 rpm or more is required, and as a result, the noise source level is set to be extremely high. Also,
The blower air volume is set higher. As a result, when the pressure in the system is required to be low, the amount of air discharged from the compressed air relief valve attached to the air supply side becomes large, and the discharged sound also has a high noise level. In addition to this, the noise level and the frequency component (spectrum) are different between the rotation noise of the blower and the air flow noise in the air passage, and the air discharge noise from the compressed air relief valve. These two kinds of sounds are synchronized with the inspiration and expiration of the user and are periodically generated, which prevents the user from falling asleep.
Furthermore, the fact is that the user's discomfort is promoted.

[0010]

In the conventional breathing assistance device, when the user exhales, the amount of air in the system is the amount of air delivered by the blower and the amount of exhaled air expelled from the lungs when the user exhales. On the other hand, on the other hand, there is a limit to the rate of increase in the amount of air discharged from the ventilation small holes (usually the hole diameter is 5 mm or less) provided in the nostril mask means, so the amount of residual air in the system gradually increases. However, as a result, the pressure level in the system may rise. This phenomenon requires the user to exhale into the mask means having a high positive pressure, which makes it extremely difficult to exhale, which prevents sleep.

Further, a conventional respiratory-synchronized positive airway pressure type respiratory supplement
In the auxiliary equipment, the inside of the system is 20 cmH ₂In the positive pressure state of O
Rotating speed of the aluminum impeller of the blower is 100
It is a high-speed rotation that reaches as high as 00 rpm.
Blower suction and wind noise at the outlet and the air in the air passage
The flow of air may cause discomfort to the user.
Many.

In the breathing assist type breathing assistance apparatus of the present invention, the system pressure level at the time of exhalation is 4 cmH ₂ O which is the minimum value.
Adopting a system pressure setting method that can be reduced to a certain degree,
The object of the present invention is to solve the problem of "difficulty breathing" of the user, and more preferably to reduce the noise generated to facilitate the user's sleep.

[0013]

SUMMARY OF THE INVENTION The inventors of the present invention have adopted a system for setting the pressure in the system as a system for variably setting the blower rotation speed according to the pressure therapeutically required at the time of inspiration by the user, and exhalation. Concerning the system pressure at the time, throttle the intake side damper of the blower to greatly reduce the excess air amount in the system at the time of intake, that is, minimize the excess air discharge amount to be released from the relief valve for compressed air etc. The system that can reduce the noise level of the air discharge sound from the blower-related sound source and the relief valve for compressed air is adopted.
The present invention has been achieved by finding that it is very effective in achieving the above object.

That is, the present invention is provided with blower means for compressed air for sending out compressed air having a pressure higher than atmospheric pressure, conduit means connected to the sending side of the blower means, and the other end of the conduit means. A breathing assisting device comprising a mask means, and an intake amount adjusting means for adjusting an intake amount of the blowing means is attached to an intake side of the blowing means, and the intake amount adjusting means operates the mask means. (EN) Provided is a respiratory-tuning type positive airway pressure type respiratory assist device which is capable of adjusting the inhalation amount in synchronism with at least a part of a user's respiratory cycle.

According to the present invention, compressed air delivery amount adjusting means for adjusting the compressed air delivery amount is attached to the delivery side conduit means of the blower means, and the compressed air delivery amount adjusting means is provided. A breath-tuned breathing assistance device is included that is capable of adjusting the compressed air delivery rate substantially in synchronism with at least a portion of a breathing cycle of a user using the masking means.

Further, in the invention, the compressed air delivery amount adjusting means is provided with a means for releasing the surplus compressed air, and the opening and closing of the releasing means is substantially the same as the opening and closing of the suction amount adjusting means. A breathing assisted breathing assistance device is provided, which is equipped with control means for compressed air delivery amount adjusting means and inhalation amount adjusting means so as to have opposite phases.

Further, the present invention also includes a breathing-type breathing assistance device further comprising a pressure fluctuation detecting means for detecting a pressure fluctuation in the internal space of the conduit means or the mask means.

Further, according to the present invention, there is provided a breathing entrainment type breathing assistance device, wherein the inhalation amount adjusting means and / or the compressed air delivery amount adjusting means can be operated according to the detection result of the pressure fluctuation detecting means. included.

Further, in the present invention, the blower means is a blower means driven by an electric motor, and the blower means can change its rotation speed according to the level of pressure in the mask means required by the user. Includes breath-tuning breathing assistance that is configurable.

The present invention will be described in more detail below. As described above, the pressure setting method in the system of the conventional CPAP device of the respiratory tuned type is about 1.2 with respect to the maximum value of the prescribed pressure (about 20 cmH ₂ O) therapeutically required at the time of exhalation.
The pressure is set to about 5 times higher (about 25 cmH ₂ O), and this situation is kept fixed even when the prescription pressure becomes low, and the pressure level rise speed in the system during inspiration by the user. Is kept high and the therapeutic effect is increased.

The pressure level in the system of the above-mentioned conventional breathing-type breathing assistance apparatus is as high as about 1.25 times the highest prescribed pressure (about 20 cmH ₂ O) therapeutically required during breathing (about 20 cmH ₂ O). 25 cmH ₂ O). That is, the motor speed of the blower means (blower) at this time is as high as 12000 rpm, and as a result, the sound level of the blower alone is set to a high level of 65 to 67 dB (A). At the same time, the air volume of the blower is also set to a high flow rate, which requires a low pressure inside the system, so that when the user exhales, there is a large amount of excess compressed air to be discharged from the compressed air relief valve. Therefore, the sound of air discharged from the relief valve for compressed air also has a high noise level.

In addition to this, the noise level and the frequency component (spectrum) of the rotation noise of the blower, the noise noise of the air in the air passage and the noise noise of the wind and the noise noise of the air discharged from the relief valve for compressed air described above. Notably, these two types of noise are synchronized with the expiration of the user's inhalation and are periodically generated, which disturbs the user's sleep and further promotes the discomfort of the user. .

Further, since the conventional breathing entrainment type breathing assistance device is a one-box type like the conventional non-breathing type CPAP device, the noise reduction effect by the application of the sound absorption technology and the sound insulation technology is extremely low. In addition, even after the blower is housed in the one box, the noise level remains at a high level of up to 55 dB (A), and as described above, the compressed air relief valve is used when the user inhales. Since the exhaust sound of the surplus compressed air becomes dominant, the level becomes extremely high at 55 dB (A), and the noise with a large height difference is periodically generated by being synchronized with the inspiration and expiration of the user. Therefore, the user's sleep is significantly hindered, and the user's discomfort is further promoted.

The first technical point in the breathing assistance apparatus of the present invention is that the blower means for generating a discharge pressure higher than the atmospheric pressure, the intake air amount is adjusted on the suction side.
That is, the inhalation amount adjusting means for the purpose of control is provided. Specific examples of such blower means include a blower and a small low-pressure compressor. Further, specific examples of the suction amount adjusting means include a damper and a flow path opening control valve. The inhalation amount adjusting means substantially synchronizes at least a part of the breathing cycle of spontaneous respiration of a user such as a patient who uses the nasal mask means, for example, at the start of inspiration and / or at the end of inspiration, with the inhalation amount of the blowing means. It can be adjusted.

Further, in a preferred embodiment of the present invention, a compressed air delivery amount adjusting means for adjusting the delivered amount of compressed air to be delivered is further provided on the delivery side (discharge side) of the blowing means. Specific examples of the compressed air delivery amount adjusting means include a compressed air relief valve and the like. The compressed air delivery rate adjusting means is also preferably capable of adjusting the compressed air delivery rate substantially in synchronization with at least a part of the breathing cycle of the user.

As a pressure setting method in the system capable of solving the problem of "difficulty in exhaling" of the user, which is the original purpose, as a pressure setting method in the system, the delivery side (discharging side) of the blower means A compressed air delivery amount adjusting means (compressed air relief valve, etc.) capable of promptly discharging excess compressed air in the system during intake and expiration to the outside of the system is installed, and the opening degree of the compressed air relief valve is set by the user. Pressure level in the system that is determined in synchronism with the pressure change in the system that occurs in response to inhalation and exhalation of breath, and that provides the user's most comfortable feeling according to the doctor's instructions during expiration. (Minimum value: 4 cmH
₂ O) can be set. The main part of this structure, that is, the technical point, is to use compressed air by using a voice coil, solenoid, etc. that are conventionally used as the drive means of the diaphragm of the speaker as the valve body drive means of the relief valve for compressed air. The opening of the relief valve for use can be set instantaneously and stepwise.

Another preferred embodiment of the present invention is one in which the opening / closing operation of the compressed air delivery amount adjusting means is substantially opposite to the opening / closing operation of the suction amount adjusting means.

In a particularly preferred embodiment of the present invention, the compressed air delivery amount adjusting means is capable of adjusting the compressed air delivery amount in synchronization with at least a part of the breathing cycle of the user, and the above-mentioned inhalation amount adjustment. There is a breathing entrainment type breathing assistance device which is said to be capable of performing an opening / closing action substantially opposite to the opening / closing action of the means.

In the device of the present invention, the air flow path in either the suction amount adjusting means provided on the suction side of the blowing means or the compressed air sending amount adjusting means provided on the sending side of the blowing means, preferably both. The opening degree of is substantially synchronized with the pressure change in the system that occurs according to the inspiration and expiration of the user of the breathing assistance type breathing assistance device, and is determined in conjunction therewith. The timing of opening and closing them is provided with a pressure fluctuation detecting means such as a semiconductor pressure sensor for converting a pressure change in the system caused by a user's inhalation and exhalation into an electric signal, for example, at a blower outlet and the like. It is determined by the electrical signal emitted by the "pressure-electricity" signal conversion means. More preferably, by the electric signal, the timing of "opening / closing" of the compressed air delivery amount adjusting means such as a relief valve for compressed air,
It is possible to use a control means such as a microcomputer for reversing the "open / close" timing of the suction amount adjusting means such as a flow path opening control valve.

As a specific example of the suction amount adjusting means, a plate-like member is provided on the intake side of the blowing means such as a blower, and the plate-like member can be driven via a driving means such as a solenoid, a voice coil, a cam or the like. The structure is such that the suction amount is adjusted by automatically controlling the gap between the plate member and the intake port of the blower within a range of about 0.5 to 2.5 mm. The plate member is preferably used as a silencer means as a laminated structure having a sound absorbing function.

In some cases, it is preferable to use, as a blower means driven by a motor such as a blower, one in which the rotation speed of the motor is changed. That is, the breathing assistance device in this case is designed to realize an appropriate nasal mask internal pressure by appropriately setting the rotation speed of the motor of the blowing means in accordance with the nasal mask internal pressure suitable for the user who uses it. It is a thing.

[0032]

In the breathing-type breathing assistance device of the present invention,
The pressure level in the system is basically determined to some extent by the amount of intake air of a blower such as a blower that generates a discharge pressure higher than atmospheric pressure. The intake air amount can be increased or decreased by changing the motor speed of the blower.

In general, it has been confirmed that as the motor speed of the blower increases, the intake air amount of the blower increases, but the noise level also increases.

The intake amount adjusting means such as the air volume controlling means (control valve) in the present invention is a system for operating the blower by fixing the rotation speed of the blower to a predetermined value and opening / closing a control valve attached to the intake port of the blower. Set the pressure level in the system by increasing or decreasing the intake air amount of the blower. Furthermore, the compressed air delivery amount adjusting means such as a relief valve for compressed air attached to the delivery portion of the blower operates completely opposite to the above-mentioned opening / closing timing of the intake side air volume control valve. That is, when the intake side air volume control valve is "open", the inlet compressed air relief valve is "closed". The operation timing of the opening / closing operation of the intake side air flow rate control valve and the compressed air relief valve is to convert the pressure change in the system generated according to the inspiration of the user of the breathing synchronism type breathing assistance device of the present invention into an electric signal. Determined by the transmitted electrical signal.

The blower described above is provided with silencer means such as suction and delivery portions, flow paths having bent portions and means for reducing and enlarging the air flow, respectively. You may reduce the noise level of the air flow sound of.

[0036]

The present invention will be described in more detail below with reference to examples, but the present invention is not limited to the examples.

FIG. 1 is a schematic diagram showing a flow explanatory diagram at the time of actual use by a user in a preferred embodiment of the present invention. That is, in FIG.
Atmospheric air passes through a flow path opening control valve 1 which is an intake amount adjusting means, becomes compressed air by a blower 2 which is an air blowing means, passes through a delivery side silencer 3, and a delivery side relief valve which is a compressed air delivery rate adjusting means. The mask means 6 is reached via 4 and the humidifier 5. The silencer means 3 includes means for reducing and expanding the flow path. On the downstream side of the silencer means, there is provided a semiconductor type pressure sensor 7 which is a pressure fluctuation detecting means for detecting a pressure change in the system passage, and detects a user's start of intake, for example. ing. The openings of the flow path opening control valve 1 and the delivery side relief valve 4 are respectively controlled via the microcomputer means 8 which is a control means based on the detected pressure fluctuation signal. Mask means 6
Is equipped with two small diameters 9 with a diameter of about 4 mm,
The exhaled air of the user can be discharged from the mask means. The mask means preferably covers the nose and mouth, but may cover only the nose. The position of the pressure sensor 7 may be anywhere on the downstream side of the blower 2 and on the upstream side of the mask means 6, and as another example of FIG. 1, the outlet of the blower 2, the inlet of the relief valve 4, the outlet, etc. can be cited. To be

FIG. 2 is a cross-sectional view showing an outline of an integrated blower means and suction amount adjusting means used in the apparatus of the present invention. The diagonal lines showing the cross section are
It is partially omitted for convenience. In FIG. 2, 17 is an impeller (runner) made of aluminum in a blower that is a blower, 10 is a small DC motor for driving the runner, 11 is a compressed air reservoir of the blower, and 12 is a blower main body. A lower container, 13 is an upper lid of a blower body, 21 is an air inlet of the blower, 25 is a compressed air sending port from the blower, and 2
Reference numeral 6 is a diaphragm member.

Further, in FIG. 2, reference numeral 24 is a foamed plastic flat plate as the opening degree determining means in the suction amount adjusting means for adjusting the suction amount to the blower. It also functions as a sound absorbing member of the silencer means. In the figure, 23 is a damping plate, 22 is a substrate, and 1
Reference numeral 4 is a support, 15 is a spring, 16 is a guide pin, 18 is a support, 19 is a support plate, and 20 is a solenoid.

FIG. 3 is a sectional view schematically showing a delivery side relief valve which is a specific example of the compressed air delivery amount adjusting means used in the apparatus of the present invention. In addition, the hatched lines showing the cross section are filled in to the minimum necessary for convenience, and others are partially omitted.

In FIG. 3, reference numeral 31 is a suction port of the delivery side relief valve, 38 is a delivery port, 37 is a compressed air discharge port, and 32 is a relief valve for adjusting the discharge amount of compressed air. Body, 33 is a solenoid for adjusting the relief valve body, 36 is a solenoid bracket, 35 is a spring, and 34 is a spring housing.

In the blower shown in FIG. 2, the outer diameter of the runner is preferably 100 to 170 mm in diameter,
More preferably, it is 105 to 130 mm, and the total thickness of the runner is 5 to 30 mm, preferably 7 to 20 mm. For example, a concrete blower runner
Is a flat plate having an outer diameter of 120 mm and a thickness of 0.8 mm, and two flat plates are provided and fixed through six curved 0.8 mm thick, 6.0 mm wide and 80 mm long blades. An air inlet is provided on one side of the flat plate, and its size is 40 mm in diameter. Aluminum is used as the material for the runner because of its light weight and strength. The runner (impeller) is fixed to the rotating shaft of a driving (rotating) DC small motor via a mounting flange or the like. The blower case is characterized in that it can be divided into two parts in the vertical direction, and the upper case and the lower body case are joined together by fixing screws via flanges (lug portions) provided at two or more places.

The aluminum runner (impeller) is housed so as to be located substantially in the center of the upper case, and the DC small motor is fixed to the central convex portion of the lower body case via four solid screws.

In this embodiment, the motor portion of the small DC motor is installed (fixed) so as to be positioned outside the compressed air reservoir portion of the lower body case portion, that is, outside the blower case, as shown in the figure. However, depending on the type of the small DC motor, it may be installed so as to be located on the compressed air reservoir side, that is, inside the blower case, in order to enhance the cooling effect of the motor part.

Next, regarding the outer diameter of the blower case,
The inner diameter of the upper case and the lower body case is usually 2 to 12 depending on the outer diameter of the aluminum runner (impeller).
It is conceivable to set the value larger by mm, but preferably 4
It is set to be larger by 8 mm, specifically 5 mm, and the inner diameters of the upper case and the lower body case are set to 130 mm. Similarly, in the blower case, the total height when the upper case and the lower case are joined by the fixing screw is considered to be 30 to 80 mm, but preferably 35 to 6 mm.
Although it is 0 mm, a total height of 43 mm is adopted in this embodiment.

The blower is characterized in that the runner storage space of the upper case and the compressed air reservoir of the lower main body case are clearly separated by the cylinder whose runner installation side is closed, and the runner storage of the upper case is stored. That is, the throttle member is provided between the space portion and the compressed air flow path between the compressed air reservoir portion of the lower main body case.

At this time, since the optimum condition is that the outer diameter of the cylinder, one end surface of which is the diaphragm member, is the same as the outer diameter of the aluminum runner, the present embodiment is performed. In the example, the thickness is 120 mm, and the thickness of the disc on one end surface is 3 mm, which is the same as the thickness of the main body blower case, because noise countermeasures and rigidity are required. Further, the length of the cylinder (including the thickness of the disc) is considered to be 5 to 15 mm, preferably 6 to 10 mm, but 8 mm is adopted in this embodiment.

Further, the gap between the cylindrical portion whose one end face is closed and the flat plate made of aluminum on which the air intake of the aluminum runner is not provided is considered to be 0.5 to 2.5 mm, preferably 1. It is 0 to 2.0 mm, and 1.5 mm is adopted in this embodiment. Next, the gap between the outer peripheral (front) surface of the cylindrical portion and the inner peripheral surface of the blower should be the same as the gap between the aluminum runner and the inner surface of the blower. 0.0 mm
Has been adopted.

As the material of the present blower and the cylinder whose one end surface is closed, a plastic material is used from the viewpoint of light weight, low cost, and moldability. Particularly, acrylic resin and AB are used.
Although S resin is a preferred material, ABS resin is used in this embodiment.

FIG. 2 shows an embodiment of the suction amount adjusting means which can also function as the intake side silencer means of the blower. As shown in the figure, it is a flat plate having a three-layer laminated structure, and in the mechanism, the substrate is an ABS with a thickness of 2 mm.
A resin plate, a polymer molded plate having a thickness of 1.0 mm and having a vibration damping and sound insulating function is arranged in the middle, and a sound absorbing member having a thickness of 5 mm is attached to the surface thereof. In addition, the outer diameter dimension thereof is the same as the outer diameter dimension of the blower case, which is the optimum condition, and therefore the diameter of 136 mm is adopted. The laminated plate of this three-layer structure is fixed to the upper part of the suction port (diameter 20 mm) of the blower by four fixing screws, and the gap between the laminated plate and the sound absorbing material surface at this time is 2 mm. Has been done.

In this embodiment, the three-layer laminated plate, which is an intake silencer means, is driven by a blower such as a solenoid or a voice coil in accordance with a pressure change of a user's inspiratory and expiratory system pressures. By opening and closing the intake port of the blower, it is possible to use both the blower air volume control means and the silencer means. FIG. 2 shows an embodiment relating to a clever combination of such an intake silencer means and a control valve which is an air volume control means of the blower.

[0052]

EFFECTS OF THE INVENTION
Synchronizes with the user's inspiratory and expiratory air, and changes the pressure pattern in the system to improve the user's feeling of use (comfort), and the minimum pressure that is expected to have a therapeutic effect even during exhalation. It has an excellent effect of making it easy to surely maintain 5 cmH ₂ O. In some cases, the present invention also has the effect of reducing the operating noise of the device and improving the usability of the user. Further, the energy consumption of the blower can be reduced, and as a result, the amount of heat released by the blower can be reduced.

[Brief description of drawings]

FIG. 1 is a schematic flow explanatory diagram when a user uses the apparatus according to an embodiment of the present invention.

FIG. 2 is an illustration of an air blower and an intake amount adjuster in an embodiment of the apparatus of the present invention.

FIG. 3 is an illustration of compressed air delivery rate adjusting means in an example embodiment of the apparatus of the present invention.

Claims (6)

[Claims] 1. A blowing means for compressed air for delivering compressed air higher than atmospheric pressure, a conduit means connected to a delivery side of the blowing means, and a mask means provided at the other end of the conduit means. A breathing assistance device comprising: a suction means for adjusting the suction quantity of the blower means on the suction side of the blower means, wherein the suction quantity control means uses the mask means. A respiration-enhanced breathing assistance device capable of adjusting the inhalation amount substantially in synchronism with at least a part of a person's breathing cycle. 2. A delivery side conduit means of the blower means is provided with a compressed air delivery amount adjusting means for adjusting a delivery amount of compressed air, wherein the compressed air delivery amount adjusting means comprises the mask means. 2. The respiratory-aided breathing assistance apparatus according to claim 1, wherein the compressed air delivery amount can be adjusted substantially in synchronization with at least a part of the breathing cycle of the user. 3. The compressed air delivery amount adjusting means comprises means for discharging surplus compressed air, and the opening / closing of the discharging means is substantially in reverse phase to the opening / closing of the suction amount adjusting means. The breathing tuned breathing assistance device according to claim 2, further comprising a control unit for controlling the compressed air delivery amount adjusting unit and the suction amount adjusting unit. 4. The respiratory assisted breathing assistance apparatus according to claim 1, further comprising a pressure fluctuation detecting means for detecting a pressure fluctuation in the internal space of the conduit means or the mask means. 5. The breathing assistance type breathing assistance device according to claim 4, wherein the inhalation amount adjusting means and / or the compressed air delivery amount adjusting means can be operated according to the detection result of the pressure fluctuation detecting means. 6. The blower means is a blower means driven by an electric motor, and the blower means is capable of variably setting its rotation speed in accordance with the level of pressure in the mask means required by the user. The respiratory assist device of the respiration synchronization type according to claim 1.