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US-12623038-B2 - CPAP device

US12623038B2US 12623038 B2US12623038 B2US 12623038B2US-12623038-B2

Abstract

An insertion-ejection opening opens in a housing case body of a housing case. A tank is inserted into and ejected from a housing space of the housing case body through the insertion-ejection opening of the housing case body. A portion of an upper-side internal surface of the housing case body forms a case slant surface slanted relative to a surface that is perpendicular to a height direction. In addition, the case slant surface faces toward a side of the insertion-ejection opening. A second discharge opening opens in the case slant surface. A portion of an external surface of the tank forms a tank slant surface slanted relative to the surface that is perpendicular to the height direction. A discharge tank aperture opens in the tank slant surface. In a state in which the tank is housed in the housing case body, the tank slant surface faces the case slant surface.

Inventors

  • Atsushi Hattori

Assignees

  • MURATA MANUFACTURING CO., LTD.

Dates

Publication Date
20260512
Application Date
20220711
Priority Date
20200124

Claims (14)

  1. 1 . A CPAP device comprising: a blowing unit including a built-in blower; a housing case including the blowing unit; a water storage tank to be housed in a housing space of the housing case; and a heater to vaporize water stored in the tank, wherein the housing case includes an insertion-ejection opening for insertion and ejection of the tank, a portion of an internal surface of the housing case is a first surface slanted relative to a surface perpendicular to an insertion-ejection direction for the tank through the insertion-ejection opening and facing toward a side of the insertion-ejection opening, a first portion of an external surface of the tank is a first facing surface to come into direct or indirect contact with the first surface when the tank is housed in the housing space and a second portion of the external surface of the tank is a second facing surface opposite the first surface of the tank, the first surface or a surface among internal surfaces of the housing case surrounded by the first surface includes a first case aperture to provide communication between inside and outside of the housing case, the tank includes a first tank aperture to provide communication between inside and outside of the tank, in a position facing the first case aperture when the tank is housed in the housing space, wherein the tank is housed in the housing space such that the first facing surface and the second facing surface are at least partially enclosed by the housing case, wherein a first seal member being an elastic body to seal a space between the first case aperture and the first tank aperture is interposed between the first surface and the first facing surface, and wherein the first surface and the first facing surface are in contact with each other with the first seal member interposed therebetween when the tank is housed in the housing space, wherein at least a portion of the first seal member extends in a shape of bellows.
  2. 2 . The CPAP device according to claim 1 , wherein the heater is mounted in the housing case and is placed on a side opposed to the first surface with the housing space in between.
  3. 3 . The CPAP device according to claim 2 , wherein a second portion of the internal surface of the housing case is a second surface intersecting with both of the insertion-ejection direction and a plane defined by the first surface and facing toward the side of the insertion-ejection opening, the second facing surface comes into contact with the second surface when the tank is housed in the housing space of the housing case, the second surface includes a second case aperture to provide communication between the inside and the outside of the housing case, and the second facing surface includes a second tank aperture to provide communication between the inside and the outside of the tank, in a position facing the second case aperture when the tank is housed in the housing space.
  4. 4 . The CPAP device according to claim 2 , wherein a stopper portion to prevent the tank from being removed through the insertion-ejection opening of the housing case to the outside of the housing case is mounted in the housing case, and the stopper portion is in contact with a contact portion of the tank from the side of the insertion-ejection opening in the insertion-ejection direction when the tank is housed in the housing space of the housing case.
  5. 5 . The CPAP device according to claim 1 , wherein a stopper portion to prevent the tank from being removed through the insertion-ejection opening of the housing case to the outside of the housing case is mounted in the housing case, and the stopper portion is in contact with a contact portion of the tank from the side of the insertion-ejection opening in the insertion-ejection direction when the tank is housed in the housing space of the housing case.
  6. 6 . The CPAP device according to claim 1 , wherein a second portion of the internal surface of the housing case is a second surface intersecting with both of the insertion-ejection direction and the first surface and facing toward the side of the insertion-ejection opening, the second facing surface comes into contact with the second surface when the tank is housed in the housing space of the housing case, the second surface includes a second case aperture to provide communication between the inside and the outside of the housing case, and the second facing surface includes a second tank aperture to provide communication between the inside and the outside of the tank, in a position facing the second case aperture when the tank is housed in the housing space.
  7. 7 . A CPAP device comprising: a blowing unit including a built-in blower; a housing case including the blowing unit; a water storage tank to be housed in a housing space of the housing case; and a heater to vaporize water stored in the tank, wherein the housing case includes an insertion-ejection opening for insertion and ejection of the tank, a portion of an internal surface of the housing case is a first surface slanted relative to a surface perpendicular to an insertion-ejection direction for the tank through the insertion-ejection opening and facing toward a side of the insertion-ejection opening, a first portion of an external surface of the tank is a first facing surface to come into direct or indirect contact with the first surface when the tank is housed in the housing space and a second portion of the external surface of the tank is a second facing surface opposite the first surface of the tank, the first surface or a surface among internal surfaces of the housing case surrounded by the first surface includes a first case aperture to provide communication between inside and outside of the housing case, the tank includes a first tank aperture to provide communication between inside and outside of the tank, in a position facing the first case aperture when the tank is housed in the housing space, wherein the tank is housed in the housing space such that the first facing surface and the second facing surface are at least partially enclosed by the housing case, wherein a first seal member being an elastic body to seal a space between the first case aperture and the first tank aperture is interposed between the first surface and the first facing surface, and wherein the first surface and the first facing surface are in contact with each other with the first seal member interposed therebetween when the tank is housed in the housing space, wherein the first seal member is shaped like a circular loop and has a laminated structure comprised of a plurality of layers with respect to a center axis direction of the circular loop of the first seal member, and one of the plurality of layers is comprised of a material differing in elastic modulus from a material of at least another one of the plurality of layers.
  8. 8 . The CPAP device according to claim 7 , wherein a second portion of the internal surface of the housing case is a second surface intersecting with both of the insertion-ejection direction and the first surface and facing toward the side of the insertion-ejection opening, the second facing surface comes into contact with the second surface when the tank is housed in the housing space of the housing case, the second surface includes a second case aperture to provide communication between the inside and the outside of the housing case, and the second facing surface includes a second tank aperture to provide communication between the inside and the outside of the tank, in a position facing the second case aperture when the tank is housed in the housing space.
  9. 9 . The CPAP device according to claim 7 , wherein a stopper portion to prevent the tank from being removed through the insertion-ejection opening of the housing case to the outside of the housing case is mounted in the housing case, and the stopper portion is in contact with a contact portion of the tank from the side of the insertion-ejection opening in the insertion-ejection direction when the tank is housed in the housing space of the housing case.
  10. 10 . A CPAP device comprising: a blowing unit including a built-in blower; a housing case including the blowing unit; a water storage tank to be housed in a housing space of the housing case; and a heater to vaporize water stored in the tank, wherein the housing case includes an insertion-ejection opening for insertion and ejection of the tank, a portion of an internal surface of the housing case is a first surface slanted relative to a surface perpendicular to an insertion-ejection direction for the tank through the insertion-ejection opening and facing toward a side of the insertion-ejection opening, a first portion of an external surface of the tank is a first facing surface to come into direct or indirect contact with the first surface when the tank is housed in the housing space and a second portion of the external surface of the tank is a second facing surface opposite the first surface of the tank, the first surface or a surface among internal surfaces of the housing case surrounded by the first surface includes a first case aperture to provide communication between inside and outside of the housing case, the tank includes a first tank aperture to provide communication between inside and outside of the tank, in a position facing the first case aperture when the tank is housed in the housing space, wherein the tank is housed in the housing space such that the first facing surface and the second facing surface are at least partially enclosed by the housing case, a second portion of the internal surface of the housing case is a second surface intersecting with both of the insertion-ejection direction and the first surface and facing toward the side of the insertion-ejection opening, the second surface includes a second case aperture to provide communication between the inside and the outside of the housing case, and the second facing surface includes a second tank aperture to provide communication between the inside and the outside of the tank, in a position facing the second case aperture when the tank is housed in the housing space.
  11. 11 . The CPAP device according to claim 10 , wherein the second surface is a surface perpendicular to the insertion-ejection direction for the tank.
  12. 12 . The CPAP device according to claim 11 , wherein a stopper portion to prevent the tank from being removed through the insertion-ejection opening of the housing case to the outside of the housing case is mounted in the housing case, and the stopper portion is in contact with a contact portion of the tank from the side of the insertion-ejection opening in the insertion-ejection direction when the tank is housed in the housing space of the housing case.
  13. 13 . The CPAP device according to claim 10 , wherein a stopper portion to prevent the tank from being removed through the insertion-ejection opening of the housing case to the outside of the housing case is mounted in the housing case, and the stopper portion is in contact with a contact portion of the tank from the side of the insertion-ejection opening in the insertion-ejection direction when the tank is housed in the housing space of the housing case.
  14. 14 . A CPAP device comprising: a blowing unit including a built-in blower; a housing case including the blowing unit; a water storage tank to be housed in a housing space of the housing case; and a heater to vaporize water stored in the tank, wherein the housing case includes an insertion-ejection opening for insertion and ejection of the tank, a portion of an internal surface of the housing case is a first surface slanted relative to a surface perpendicular to an insertion-ejection direction for the tank through the insertion-ejection opening and facing toward a side of the insertion-ejection opening, a portion of an external surface of the tank is a first facing surface to come into direct or indirect contact with the first surface when the tank is housed in the housing space, the first surface or a surface among internal surfaces of the housing case surrounded by the first surface includes a first case aperture to provide communication between inside and outside of the housing case, the tank includes a first tank aperture to provide communication between inside and outside of the tank, in a position facing the first case aperture when the tank is housed in the housing space, a first seal member being an elastic body to seal a space between the first case aperture and the first tank aperture is interposed between the first surface and the first facing surface, the first surface and the first facing surface are in contact with each other with the first seal member interposed therebetween when the tank is housed in the housing space, a stopper portion to prevent the tank from being removed through the insertion-ejection opening of the housing case to the outside of the housing case is mounted in the housing case, and the stopper portion is in contact with a contact portion of the tank from the side of the insertion-ejection opening in the insertion-ejection direction when the tank is housed in the housing space of the housing case.

Description

CROSS REFERENCE TO RELATED APPLICATION This is a continuation of International Application No. PCT/JP2020/043921 filed on Nov. 26, 2020 which claims priority from Japanese Patent Application No. 2020-010019 filed on Jan. 24, 2020. The contents of these applications are incorporated herein by reference in their entireties. BACKGROUND OF THE DISCLOSURE Field of the Disclosure The present disclosure relates to a continuous positive airway pressure (CPAP) device to deliver air sucked in the device into a respiratory tract of a user. Description of the Related Art In a CPAP device described in Patent Document 1, a blower to blow gas is built in a blowing unit. Additionally, the gas is made to flow into a housing case with activation of the blowing unit. A water storage tank is mounted inside the housing case. Additionally, in the housing case, a heater is mounted as a mechanism to promote the humidification in the tank. On the housing case, an insertion-ejection opening for insertion and ejection of the tank opens. Additionally, on the housing case, a case aperture opens on a surface opposed to the insertion-ejection opening, besides the insertion-ejection opening. Further, a tank aperture providing communication between inside and outside of the tank opens on the tank. In a state in which the tank is mounted in the housing case, the case aperture and the tank aperture are placed so as to face each other, and circulation openings for the gas are made thereof. Patent Document 1: Japanese Unexamined Patent Application Publication (Translation of PCT Application) No. 2009-508647 BRIEF SUMMARY OF THE DISCLOSURE In the CPAP device described in Patent Document 1, as described above, the surface of the housing case opposed to the insertion-ejection opening is opened. Accordingly, when the tank is inserted into the housing case, the tank aperture of the tank is pressed against the case aperture of the housing case, so that both are prone to be sealed. In such a CPAP device as described in Patent Document 1, however, it may be desirable to open the case aperture of the housing case on a surface that is other than the surface opposed to the insertion-ejection opening. In this case, there is a concern that a force at a time of insertion of the tank into the housing case cannot be utilized as a force to cause close contact between the tank aperture of the tank and the case aperture of the housing case and that a gap may be consequently made between the tank aperture and the case aperture. In order to solve the above-described problem, an aspect of the present disclosure is a CPAP device that includes a blowing unit including a built-in blower, a housing case including the blowing unit, a water storage tank to be housed in a housing space of the housing case, and a humidification promotion mechanism to vaporize water stored in the tank. The housing case includes an insertion-ejection opening for insertion and ejection of the tank. A portion of an internal surface of the housing case forms a first surface that is slanted relative to a surface perpendicular to an insertion-ejection direction for the tank through the insertion-ejection opening and that faces toward a side of the insertion-ejection opening. A portion of an external surface of the tank forms a first facing surface to come into direct or indirect contact with the first surface when the tank is housed in the housing space. The first surface or a surface that is among internal surfaces of the housing case and that is surrounded by the first surface includes a first case aperture to provide communication between inside and outside of the housing case. The tank includes a first tank aperture to provide communication between inside and outside of the tank, in a position that faces the first case aperture when the tank is housed in the housing space. According to an above-described configuration, insertion of the tank into the housing space of the housing case through the insertion-ejection opening brings the first facing surface of the tank into contact with the first surface of the housing case. With further insertion with a push of the tank in that state, the first facing surface of the tank is pressed against the first surface of the housing case, so that sealability between the first tank aperture and the first case aperture can be ensured even if the first surface is not the surface that is perpendicular to the insertion-ejection direction for the tank. With the insertion of the tank into the housing case, the sealability between the first tank aperture and the first case aperture can be ensured. BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS FIG. 1 is an exploded perspective view of a CPAP device. FIG. 2 is an exploded perspective view of the CPAP device as seen from an angle that is different from an angle of FIG. 1. FIG. 3 is a perspective view of the CPAP device. FIG. 4 is a sectional view of the CPAP device. FIG. 5 is a perspective view of a first sea