JP2006280521A - Respiratory auxiliary device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make using feeling of a respiratory auxiliary device used for treatment of sleep apnea syndrome comfortable. <P>SOLUTION: A fan 13 for blowing by boosting the atmosphere is housed in a fan housing. A motor is fitted to the fan housing 14 to constitute a blower 8. The blower 8 is housed nearly in the center of a casing. A bag-state member 22 is housed so as to surround the blower 8 in the casing. The bag-state member 22 is swollen by making the atmosphere from the fan 13 flow into the bag-state member 22. The atmosphere having flowed into the bag-state member 22 is supplied continuously from an air sending tube 27 to the nostril part of a user through a mask. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a respiratory assistance device that assists breathing during sleep, for example.

Conventionally, when treating sleep apnea syndrome in which breathing temporarily stops during sleep or reducing snoring, for example, a respiratory assistance device as disclosed in Patent Document 1 has been used. . The thing of this patent document 1 is comprised so that air | atmosphere may be pressure | voltage-risen so that it may become about 5 hpa-20 hpa higher than atmospheric pressure with the fan of an air blower, and it supplies continuously to a nostril part via a hose. By continuously supplying air in a pressure state higher than atmospheric pressure to the nostrils, the upper airway of the user is kept at a positive pressure during sleep, preventing the upper airway from being blocked and breathing. Stopping can be avoided and snoring can be reduced.
JP-A-6-327773 (2nd page, FIG. 1)

  However, in the breathing assistance apparatus such as Patent Document 1, since the pressurized air is continuously supplied into the upper airway, the user breathes in an atmosphere higher than the atmospheric pressure. For this reason, there is a problem that it is difficult to obtain a comfortable feeling of use due to the difficulty of breathing particularly when exhaling.

  The present invention has been made in view of such a point, and an object of the present invention is to make it possible to suppress a feeling of breathing when using a breathing assistance device so that a comfortable feeling of use can be obtained. Is to make it.

  In order to achieve the above object, in the present invention, the air blown from the fan of the blower is once introduced into the bag-like member and then supplied to the user.

  Specifically, in the invention of claim 1, a blower provided with a fan that boosts and blows air to the atmosphere, a bag-like member connected to the blower and into which the air blown by the fan flows, and the bag And a supply part that is connected to the inside of the bag-like member and supplies the air inside the bag-like member into the upper airway of the user.

  According to this structure, air | atmosphere is once flowed into a bag-shaped member, after being pressure | voltage-risen so that it may become about 5 hpa-20 hpa higher than atmospheric pressure with the fan of an air blower. The air flowing into the bag-like member is continuously supplied into the user's upper airway via the supply unit, and the user's upper airway is kept at a positive pressure during sleep. When the user breathes out while breathing in a state where the supply unit supplies air, the exhaled breath flows back to the supply unit, and the pressure in the supply unit increases due to the backflow of the breath. At this time, since the bag-shaped member is provided between the supply unit and the blower, the pressure increased in the supply unit also acts on the inside of the bag-shaped member, and the pressure inside the bag-shaped member increases. The bag-like member expands. When the bag-like member expands, the volume of the bag-like member increases, so that an increase in the pressure in the supply unit more than necessary is mitigated, and the user feels uncomfortable.

  In the invention of claim 2, in the invention of claim 1, the bag-like member is formed so as to surround the blower.

  According to this configuration, since the blower is surrounded by the bag-like member, the sound when the fan of the blower rotates is attenuated by the bag-like member, and the operation sound of the respiratory assistance device that can be heard by the user is reduced.

  In the invention of claim 3, in the invention of claim 2, the blower is provided with a motor for rotationally driving the fan, and the bag-like member is formed so as to surround the motor.

  According to this configuration, since the motor is surrounded by the bag-like member, the rotation sound of the motor is also attenuated by the bag-like member, and the operation sound of the respiratory assistance device that can be heard by the user is further reduced.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the apparatus includes a casing that houses a blower, wherein the blower is formed with an air suction hole and faces the air suction hole of the blower in the casing. An air intake hole is formed at a location where the air is taken, and a filter made of an elastic material that filters the air sucked into the air suction hole is provided between the air intake hole periphery of the casing and the blower. The configuration is as follows.

  According to this configuration, when the fan of the blower rotates, the air is filtered through the filter from the air intake hole of the casing and then flows into the air suction hole of the blower and is supplied into the upper airway of the user. When the fan rotates, vibration is generated in the blower. Since the filter is made of an elastic material and is provided between the peripheral edge of the air intake hole of the casing and the blower, the vibration transmitted from the blower to the casing is attenuated by the filter. The

  In the invention of claim 5, in the invention of claim 1, the bag-like member is a pillow used by the user during sleep.

  According to this configuration, the bag-like member can be effectively used as a user's pillow.

  According to a sixth aspect of the present invention, in the fifth aspect of the present invention, the bag-like member is configured to repeat expansion and contraction by the breathing of the user.

  According to this configuration, the height of the user's pillow can be changed by the user's breathing.

  According to the first aspect of the present invention, since the air blown by the fan is introduced into the bag-like member and then supplied into the upper airway of the user, the user feels uncomfortable when exhaling. Can be eliminated and a comfortable feeling of use can be obtained.

  According to the invention of claim 2, since the blower is surrounded by the bag-like member, the operation sound of the respiratory assistance device that can be heard by the user can be reduced, and a more comfortable feeling of use can be obtained. .

  According to the invention of claim 3, since the motor is surrounded by the bag-like member, the operation sound of the respiratory assistance device that can be heard by the user can be further reduced.

  According to the invention of claim 4, since the filter made of an elastic material is provided between the peripheral edge of the air intake hole of the casing and the blower, the vibration transmitted from the blower to the casing is attenuated using the filter that filters the air. Can do. Thereby, the operation sound of the respiratory assistance device can be further reduced without incurring an increase in cost.

  According to invention of Claim 5, since the pillow was comprised with the bag-shaped member, a bag-shaped member can be utilized effectively.

  According to invention of Claim 6, the height of this user's pillow can be changed with a user's respiration.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(Embodiment 1)
FIG. 2 shows a respiratory assistance device 1 according to Embodiment 1 of the present invention. The respiratory assistance device 1 is used when treating sleep apnea syndrome in which breathing temporarily stops during sleep, reducing snoring, or the like. The respiratory assistance device 1 includes a blower 2 that blows air and a supply unit 3 that supplies the air blown from the blower 2 to the upper airway of the user.

  The air blower 2 includes a substantially rectangular resin casing 4 in plan view. The thickness dimension of the casing 4 is set to about 45 mm to about 60 mm, the length dimension is set to about 297 mm, and the width dimension is set to about 210 mm. In other words, the air blower 2 is approximately the same size as A4 size paper in plan view, and can be easily carried.

  As shown in FIG. 1, the casing 4 is divided into two in the vertical direction, and includes an upper casing member 5 and a lower casing member 6. As shown in FIG. 3, a partition wall 7 is provided inside the casing 4. The inside of the casing 4 is partitioned by the partition wall 7 into a blower housing space 9 that houses the blower 8 and a control device housing space 11 that houses a control device 10 that controls the blower 8. The partition wall 7 extends from the inner surface of the bottom wall 6 a of the lower casing member 6 to the inner surface of the upper wall 5 a of the upper casing member 5, and is divided in the vertical direction at an intermediate position in the vertical direction corresponding to the divided structure of the casing 4. ing. The side wall located on the opposite side of the partition wall 7 across the control circuit housing space 11 is a control panel 4a on which operation switches described later are disposed.

  As shown in FIG. 3, the blower housing space 9 is formed in a substantially square shape in plan view. A blower 8 is disposed and fixed at a substantially central portion of the blower housing space 9. A fan housing 14 is provided in the upper half of the blower 8 to accommodate a centrifugal fan 13 (shown only in FIG. 3) so that its rotational axis is directed in the vertical direction. The outer shape of the fan housing 14 is formed in a thick disk shape. An air suction hole 15 is opened in a bell mouth shape at a substantially central portion of the upper wall of the fan housing 14, and a discharge pipe 16 communicating with the inside of the fan housing 14 protrudes to the outside on the peripheral wall portion of the fan housing 14. It is integrally molded.

  As shown in FIG. 1, a motor 17 for driving the fan 13 is provided at a substantially central portion of the bottom wall of the fan housing 14. The output shaft of the motor 17 is connected to the rotation shaft of the fan 13. The motor 17 is fixed to the fan housing 14 and constitutes the lower half of the blower 8.

  The outer diameter of the motor 17 is set to be smaller than the outer diameter of the fan housing 14. For this reason, the outer peripheral side of the fan housing 14 bulges radially outward from the motor 17 in plan view. A step is formed between the two. The outer peripheral side inside the fan housing 14 is a collecting passage 19 where the air sent from the fan 13 gathers.

  Between the lower surface of the motor 17 and the inner surface of the bottom wall 6a of the lower casing member 6, there is provided a motor support member 20 formed by molding rubber as an elastic material in an annular shape. The outer diameter of the motor support member 20 is set to be substantially the same as the outer diameter of the motor 17, and the outer peripheral side of the bottom surface of the motor 17 is elastically supported by the motor support member 20 on the inner surface of the bottom wall 6 a of the lower casing member 6. Yes. The motor support member 20 may be made of, for example, foamed resin.

  As shown in FIG. 3, the blower housing space 9 houses a bag-like member 22 that extends long so as to surround the entire outer surface of the blower 8. The bag-like member 22 is made of a resin film, and the vertical dimension is substantially equal to the distance between the inner surface of the upper wall 5 a of the upper casing member 5 and the inner surface of the bottom wall 6 a of the lower casing member 6. Are set the same.

  A connecting pipe 24 to which the discharge pipe 16 of the fan housing 14 is connected is provided on one end side in the longitudinal direction of the bag-like member 22. The connection pipe 24 and the inside of the bag-like member 22 communicate with each other. The inner diameter and outer diameter of the discharge pipe 16 and the connection pipe 24 are set to be substantially the same. A cylindrical coupling member 25 for coupling the discharge pipe 16 and the connection pipe 24 is fitted on the outer periphery of the discharge pipe 16 and the connection pipe 24. The volume of the bag-like member 22 is set to be about 0.7 liter to about 0.8 liter when air is blown by the fan 13. The blower 8 and the bag-like member 22 constitute the blower unit 2.

  A connecting tube 28 to which the proximal end side of the air supply tube 27 is connected is provided at the other longitudinal end of the bag-like member 22. The air supply pipe 27 has an inner diameter of about 12 mm and constitutes a part of the supply unit 3. The air supply pipe 27 extends through the partition wall 7 toward the control panel 4 a side through the partition wall 7, and has a tip at the end. An opening is formed on the outer surface of the control panel 4a. The inner and outer diameters of the air supply tube 27 and the connection tube 28 are set to be substantially the same, and a connection member 29 similar to the connection member 25 is fitted on the outer periphery of the air supply tube 27 and the connection tube 28 to form a bag shape. The atmosphere in the member 22 flows into the air supply pipe 27.

  As shown in FIG. 1, a large number of small-diameter air intake holes 30 are formed at intervals in the upper casing member 5 at positions facing the air suction holes 15 of the fan housing 14. Air is introduced into the blower 8 from these air intake holes 30.

  Between the air suction hole 15 of the blower 8 and the periphery of the air intake hole 30 of the casing 4, a filter 31 in which an elastic material made of a soft foamed resin is formed in a disk shape is disposed. The filter 31 is for filtering the air sucked into the blower 8, and is configured by overlapping a plurality of types of foamed resins having different bubble sizes. The thickness dimension of the filter 31 is set to be longer than the separation dimension between the upper surface of the fan housing 14 and the inner surface of the upper wall 5a of the upper casing member 5 facing the upper surface. The fan housing 14 and the upper casing member 5 are sandwiched in a state of being compressed and deformed by the place where the air intake hole 30 is formed.

  Further, since the air suction hole 15 of the blower 8 is covered with the foamed resin, the rotation sound and intake sound of the fan 13 are suppressed from leaking from the air intake hole 30 of the upper casing member 5 to the outside.

  Moreover, the control apparatus 10 is a conventionally well-known thing which can change the rotation speed by controlling the electric power sent to the motor 17 to rotate or stop the motor 17. The control device 10 includes a power supply substrate 32 disposed below the air supply tube 27 and a control substrate 33 disposed above the air supply tube 27. Both the substrates 32 and 33 are provided on the lower casing. It arrange | positions so that it may extend substantially in parallel with the bottom wall 6a of the member 6. FIG. And although not shown in figure, the said motor 17 and the control apparatus 10 are connected by the connection line, and the electric power of the control apparatus 10 is supplied to the motor 17 via this connection line.

  A power cord connecting portion 35 disposed on the control panel 4a is connected to the power substrate 32. Power is supplied to the power supply board 32 from a power supply cord (not shown) connected to the power supply cord connection portion 35. Further, as shown in FIG. 4, the power supply board 32 is connected to a power switch 36 disposed on the control panel 4a and a lamp 37 for displaying whether the power is on. The control board 33 is connected to a pressure up switch 38 and a pressure down switch 39 disposed on the control panel 4a. When the pressure up switch 38 is pressed, the current flowing to the motor 17 is increased by the control device 9 and the number of revolutions of the motor 17 is increased. On the other hand, when the pressure down switch 39 is pressed, the current flowing to the motor 17 is decreased. As a result, the rotational speed decreases.

  The upstream end of the air supply hose 40 is connected to the downstream end of the air supply pipe 27. The air supply hose 40 is for supplying the air of the blower 2 to a mask 41 attached to the user's face. That is, the supply unit 3 of the present invention includes the air supply pipe 27, the air supply hose 40, and the mask 41.

  As shown in FIG. 5, the mask 41 is hooked on the upper part of the ear to fix the mask 41 to the face, and after being bent upward from the fixing part 42 to the upper part of the eye, to the vicinity of the upper part of the nose. The curved portion 43 extends, and a cover portion 44 that is attached to the curved portion 43 and covers the nostril portion. The fixed portion 42 and the curved portion 43 are formed by forming a tubular member, and the downstream end of the air supply hose 40 is connected to the fixed portion 42, while the end portion of the curved portion 43 is the nostril portion of the cover portion 44. The air flowing into the fixed portion 42 flows into the nostril side of the cover portion 44 from the inside of the curved portion 43.

  In general, when a person breathes during sleep, the average amount of air inhaled per one time is about 0.5 liters, and the number of breaths is about 15 times per minute. Is about 7.5 liters. In this embodiment, the rotational speed of the fan 13 is set so that the air supply amount per minute is about 15 liters in consideration of the leakage amount when supplying air to the nostrils, etc., and the blower 8 is configured.

  Next, operation | movement of the respiratory assistance apparatus 1 comprised as mentioned above is demonstrated. First, the user puts the fixing portion 42 of the mask 41 on the ear, and fixes the mask 41 to the face so that the nostril portion is covered with the covering portion 44. Thereafter, when the power switch 36 is turned on, the fan 17 is driven by the motor 17, and the air taken in from the air intake hole 30 of the casing 4 is filtered by the filter 31, and then the fan is discharged from the air suction hole 15 of the blower 8. It is sucked into the housing 14. The air sucked into the fan housing 14 is pressurized by the fan 13 so as to be in a pressure state higher than the atmospheric pressure, and gathers in the collecting passage 19 and flows into the bag-like member 22 from the discharge pipe 16. .

  When the blower 8 is activated, rotation sound of the fan 13 and the motor 17 is generated. However, since the fan 13 and the motor 17 are surrounded by the bag-like member 22, the rotation sound is difficult to leak to the outside of the casing 4. . Further, although vibration is also generated when the fan 13 rotates, the filter 31 sandwiched between the periphery of the air suction hole 15 of the blower 8 and the periphery of the air intake hole 30 of the upper casing member 5 is made of an elastic material. Therefore, the vibration transmitted from the blower 8 to the upper casing member 5 is attenuated by the filter 31. Further, since the motor support member 20 made of rubber is disposed between the blower 8 and the lower casing member 6, vibration transmitted from the blower 8 to the lower casing member 6 is attenuated by the motor support member 20. .

  When the air flows into the bag-like member 22, the bag-like member 22 expands so as to be in close contact with the outer surface of the blower 8. The air in the bag-like member 22 flows through the air supply tube 27 through the air supply pipe 27 and is continuously supplied from the fixed part 42 of the mask 41 through the curved part 43 to the nostril part from the nostril side of the cover part 44. The upper airway is kept at a positive pressure. As a result, the upper airway of the user can be prevented from being blocked and breathing can be stopped.

  When the pressurized air is supplied to the nostril portion, when the user exhales during breathing, the exhaled breath flows back to the air supply hose 40 from the cover portion 44 of the mask 41b, and the pressure in the supply portion 3 Rises. As the pressure inside the supply unit 3 rises, the pressure inside the bag-like member 22 rises, and the bag-like member 22 swells to the corners of the casing 4 to expand its volume. This reliably relieves the pressure in the supply unit 3 from rising more than necessary. On the other hand, when the user inhales, the bag-shaped member 22 slightly contracts and the volume of the bag-shaped member 22 is reduced.

  Further, the bag-like member 22 is in close contact with the outer peripheral side of the lower surface of the fan housing 14 of the blower 8, and upward force is applied to the lower surface of the fan housing 14 by the bag-like member 22. Thereby, it is avoided that the air blower 8 adheres strongly to the motor support member 20, and the vibration of the air blower 8 is hardly transmitted to the lower casing member 6.

  Further, the atmospheric pressure supplied to the nostril portion by the supply unit 3 is arbitrarily set in a range of about 5 hpa to about 20 hpa higher than the atmospheric pressure by operating the pressure up switch 38 and the pressure down switch 39. Is possible.

  As described above, according to the respiratory assistance device 1 according to this embodiment, the air pressurized by the fan 13 of the blower 8 is once introduced into the bag-like member 22 and then supplied to the nostril portion of the user. Therefore, it can be solved that the user feels stuffy when breathing. Moreover, since the said bag-shaped member 22 was provided so that the air blower 8 might be enclosed in the casing 4, the operation sound of the breathing assistance apparatus 1 which a user can hear can be made small. By these things, the usability of the breathing assistance apparatus 1 can be made comfortable.

  Further, since the motor 17 is surrounded by the bag-like member 22, the rotational sound of the motor 17 leaking outside the casing 4 can be reduced. Thereby, the operation sound of the breathing assistance apparatus 1 can be further reduced, and the feeling of use can be made even more comfortable.

  Further, since the filter 31 made of an elastic material is sandwiched between the peripheral edge of the air suction hole 15 of the blower 8 and the peripheral edge of the air intake hole 30 of the upper casing member 5, the casing from the blower 8 using the filter 31 that filters the air is used. 4 can be damped. As a result, the noise can be further reduced without causing an increase in cost.

  Moreover, since the downstream end of the discharge pipe 16 is opened inside the bag-like member 22, the discharge sound from the blower 8 can be silenced inside the bag-like member 22.

  The structure of the mask 41 is not limited to that of the first embodiment. For example, as in the modification shown in FIG. 6, the pair of tubular bodies 53 are directly inserted into the nostril portions so as to supply the atmosphere into the upper airway. It may be. The mask 41 of this modification includes the tubular body 53, a fixing portion 50 that is formed so as to be hung on the upper portion of the ear and extends to the vicinity of the upper portion of the nose, and the lower portion of the nose from the fixing portion 50. It comprises a support portion 51 that extends to the vicinity and supports the tubular body 53. The downstream end of the air supply hose 40 is connected to the end of the tubular body 53 opposite to the nostril. Further, a flexible pad 52 is provided at a portion of the support portion 51 that contacts the nose so that no mark is left on the nose when the mask 41 is fixed to the face.

(Embodiment 2)
7-10 shows the pillow 60 comprised using the bag-shaped member 22 of the respiratory assistance apparatus 1 which concerns on Embodiment 2 of this invention. Since the breathing assistance device 1 of the second embodiment is the same as that of the first embodiment except that the shape and arrangement position of the bag-like member 22 are different and the other parts are the same. Are denoted by the same reference numerals, and different portions will be described in detail.

  That is, in the second embodiment, the bag-shaped member 22 is not accommodated in the casing 10, and the pillow 60 is configured by the bag-shaped member 22. The pillow 60 includes the bag-shaped member 22, a cover member 61 that covers the upper and lower surfaces of the bag-shaped member 22, and a support member 62 that supports the user's neck. The shape of the bag-like member 22 is substantially fan-shaped with the vertical dimension shortening as it goes to one side in a side view, and has a substantially rectangular shape in plan view. The shape of the upper surface and the lower surface is substantially the same flat surface. ing. A connecting pipe 63 connected to the discharge pipe 16 of the blower 8 and an air supply hose 40 are connected to the side of the bag-like member 22 that has a long vertical dimension.

  The cover member 61 has a lower side portion 65 extending substantially flat along the lower surface of the bag-like member 22, and the upper and lower dimensions of the bag-like member 22 in the lower side portion 65 from the short side to the upper surface of the bag-like member 22. And an upper portion 66 extending substantially flat along the plate. These are formed by bending a single plate. The upper portion 66 is adapted to contact with and separate from the lower portion 65 in the vertical direction. A lower vertical plate portion 67 extending upward is formed on both side edges of the lower side portion 65, and an upper vertical plate portion 68 extending downward is formed on both side edges of the upper portion 66. Further, since the upper surface of the bag-like member 22 is a substantially flat surface, substantially the entire upper surface is in close contact with the lower surface of the upper portion 66.

  The support member 62 includes a curved portion 69 formed so as to correspond to the shape of the back side of the user's neck, and a pair of projecting portions 70 projecting from both side edges of the curved portion 69. The curved portion 69 of the support member 62 extends across both ends of the upper portion 66 in the width direction, and is disposed so as to cover the upper surface of the upper portion 66 on the side where the vertical dimension of the bag-like member 22 is short. On the other hand, on the side of the lower vertical plate portion 67 where the vertical dimension of the bag-like member 22 is long, a pin 71 extending substantially horizontally is provided so as to extend outward. Further, a support shaft 72 extending similarly to the pin 71 is provided on the curved portion 69 side of the upper vertical plate portion 68. A proximal end side insertion hole 73 through which the support shaft 72 of the upper vertical plate portion 68 is inserted is formed on the proximal end side of the projecting portion 70, and a pin 71 of the lower vertical plate portion 67 is inserted on the distal end side. A distal end side insertion hole 74 is formed. The distal end side insertion hole 74 extends long in the longitudinal direction of the projecting portion 70, and the pin 71 can move in the distal end side insertion hole 74 in the longitudinal direction.

  A cushion material 75 (shown only in FIG. 10) is provided on the upper surfaces of the curved portion 69 and the upper portion 66. Although not shown, the upper surface of the cushion material 75 and the lower surface of the cover member 61 may be covered with a cloth cover or the like.

  When the blower 8 is activated, the air flows into the bag-like member 22 from the connecting pipe 63, the pressure in the bag-like member 22 rises, and the bag-like member 22 expands. At this time, since the entire upper surface of the bag-shaped member 22 is in close contact with the lower surface of the upper portion 66, the expansion force of the bag-shaped member 22 acts on the upper portion 66 with certainty, and the upper portion 66 is lifted. At the same time, the support member 62 rotates around the support shaft 72 so that the bending portion 69 moves upward (shown in FIG. 10A). Further, the pin 71 moves in the distal end side insertion hole 74 of the protrusion 70 of the support member 62, and the support member 62 rotates smoothly.

  The amount of air blown by the blower 8 is set so that the bag-like member 22 does not remain inflated but contracts when the user inhales. Therefore, when the user inhales, the pressure in the bag-like member 22 decreases and the bag-like member 22 contracts. As the bag-like member 22 contracts, the upper portion 66 moves downward, and the support member 62 rotates around the support shaft 72 so that the bending portion 69 moves downward (shown in FIG. 10B). ). That is, the height of the upper portion 66 and the support member 62, that is, the height of the pillow 60 is changed by the user's breathing.

  Therefore, according to the respiratory assistance device 1 according to the second embodiment, the air pressurized by the fan 13 of the blower 8 is once flowed into the bag-like member 22 and supplied to the user's nostril portion, as in the first embodiment. Since it was made to do, the usability of the breathing assistance apparatus 1 can be made comfortable.

  Moreover, since the user's pillow 60 was comprised with the bag-shaped member 22, the bag-shaped member 22 can be utilized effectively. Moreover, the height of the pillow 60 can be changed by the user's breathing.

  In addition, the supply part 3 should just be what can supply the air | atmosphere of the ventilation part 2 in an upper airway, and may be structures other than the said embodiment.

  Further, the blower 8 may be provided with a fan other than the centrifugal fan 13.

  As described above, the respiratory assistance device according to the present invention can be used, for example, when treating sleep apnea syndrome or reducing snoring.

It is sectional drawing in the AA of FIG. It is a perspective view of the respiratory assistance apparatus which concerns on Embodiment 1 of this invention. It is a top view of the state which removed the upper casing member of the ventilation part. It is the front view which looked at the ventilation part from the control panel side. It is a figure explaining the mounting state of a mask. FIG. 6 is a view corresponding to FIG. 5 according to a modification of the first embodiment. It is a perspective view of the pillow comprised using the bag-shaped member of the respiratory assistance apparatus which concerns on Embodiment 2. FIG. It is a top view of a pillow. It is the figure which looked at the pillow from the connecting pipe side. It is a side view explaining the use condition of a pillow, (a) is a figure which shows the state which the bag-shaped member expanded and the height of the pillow became high, (b) is a figure which a bag-shaped member contracts and a pillow It is a figure which shows the state from which the height of became low.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Respiration assistance apparatus 3 Supply part 4 Casing 8 Blower 13 Fan 15 Atmospheric suction hole 17 Motor 22 Bag-shaped member 30 Atmospheric intake hole 31 Filter 60 Pillow

Claims (6)

A blower provided with a fan for boosting air and blowing air;
A bag-like member connected to the blower and into which the air blown by the fan flows;
A breathing assistance device, comprising: a supply unit that communicates with the inside of the bag-like member and supplies air inside the bag-like member into the upper airway of the user. The respiratory assistance device according to claim 1,
A breathing assistance device, wherein the bag-like member is formed so as to surround the blower. The respiratory assistance device according to claim 2,
The blower is provided with a motor that rotates the fan,
A breathing assistance device, wherein the bag-like member is formed so as to surround the motor. In the respiratory assistance apparatus as described in any one of Claims 1-3,
A casing for housing the blower,
An air suction hole is formed in the blower,
At the place facing the air suction hole of the blower in the casing, an air intake hole is formed,
A breathing assistance device, wherein a filter made of an elastic material for filtering the air sucked into the air suction hole is provided between the periphery of the air intake hole of the casing and the blower. The respiratory assistance device according to claim 1,
A breathing assistance device, wherein the bag-like member constitutes a pillow used by a user during sleep. The respiratory assistance device according to claim 5,
The breathing assistance device, wherein the bag-like member is configured to repeat expansion and contraction by a user's breathing.

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