JP4976478B2 - Respiratory mask - Google Patents

Description

  The present invention relates to a respiratory assistance mask, and more particularly, to a respiratory assistance mask having high airtightness around a user's nose muscles.

FIG. 14 shows an example of a conventional breathing assistance mask that assists a user wearing the breathing by receiving air supply in connection with an air supply means. As shown in the figure, the respiratory assistance mask communicates with the air supply means through the connection port 13 and also has a mask body part 11 that can shield the user's mouth and nostril, and a bridge part 14 from the mask body part 11. The frame body frame 15 that extends upward and can come into contact with the user's forehead portion 10, and the two fastenings that can tighten the mask body 11 and the frame body frame 15 to the user's face. And an attached band 141.
Since this respiratory assistance mask has a fixed positional relationship between the mask main body 11 and the forehead support frame 15, as shown in the drawing, when the mask is properly attached to the user's face according to the face structure of the wearing user. Is not limited. For example, when the height of the user's nose is relatively low, the upper end of the mask main body 11 cannot contact the user's nose, and the air supply from the air supply means tends to leak.
FIG. 15 is a cross-sectional view of the forehead support for the face mask disclosed in Patent Document 1. As shown in the figure, the forehead support is provided with a rotation mechanism 18 between the mask main body 16 and the forehead pad 17, so that it can cope with the difference in the height of the forehead.

Special table 2003-502119 specification

However, although the forehead support of Patent Document 1 emphasizes dealing with the difference in forehead height, it cannot be said that the correspondence to the height of the user's nose is equally high. In particular, airtightness around the nasal muscles is likely to be a problem for East Asians whose nasal muscles are generally not high.
Accordingly, an object of the present invention is to provide a respiratory assistance mask having high airtightness around the user's nose muscles.

In order to achieve the above object, the present invention comprises a mask means, a fixing means, and an adjusting means, and is connected to the air supply means to receive air supply, thereby breathing the user wearing it. An assisting respiratory mask,
The mask means is connected to the air supply means to introduce air supply, is fixed to the back surface of the mask frame, and is configured to be in close contact with the user's face. And having a mask pad
The fixing means includes a fixed frame and a forehead frame, and the fixed frame is disposed in front of the mask frame, and a lower end thereof is pivotally supported by a lower end of the mask frame, And the whole is configured to be able to rotate so as to approach or separate from the front surface of the mask frame around the pivot, and the forehead support frame is connected via a bridging portion. Fixed to the upper end of the fixed frame;
The adjusting means is configured to adjustably stop the rotation of the fixed frame relative to the mask frame between the fixed frame and the mask frame;
Thereby, when attached to the user's face with the fastening band, the adaptability of the mask means to the face can be adjusted by limiting the rotation angle of the fixed frame with respect to the front surface of the mask frame. Provide an auxiliary mask.

  Note that, as a configuration for installing the tightening band of the respiratory assistance mask, one end of the urging means is fixed to the back side of the forehead support frame, and the other end of the urging means is closely attached to the forehead of the user. A forehead pad that can be attached is formed, first connection lugs are formed on both sides near the lower end of the fixed frame, and second connection lugs are formed on both sides of the forehead frame, respectively. In addition, there is a method in which a fastening band is attached to each of the fixed frame and the forehead frame by the first and second connection lugs.

  Furthermore, in the respiratory assistance mask of the present invention, the mask means further includes a connector that can be connected to an air supply means to introduce air supply, and the connector can protrude near the center of the fixed frame. A through hole is formed, and the adjustment means extends forward from the mask frame so as to pass through the through hole, and a pair of adjustable holes each formed to have a series of locking holes. In order to be able to fit to the flexible tab and a series of locking holes respectively formed in the pair of flexible tabs, facing each other on both sides of the peripheral edge of the through hole in the fixed frame It can comprise so that a pair of formed latching protrusion may be provided.

  In the respiratory assistance mask of the present invention, the mask means further includes a connector that can be connected to an air supply means to introduce air supply, and the connector can protrude near the center of the fixed frame. A through hole is formed, and the adjusting means is configured to extend from the mask frame so as to pass through the through hole, and to contact an upper end edge of the through hole in a stretching route. A flexible tab, and a series of locking protrusions formed to protrude upward from the flexible tab, and the engagement of the flexible tab when the flexible tab abuts the upper edge of the through hole. The stop projection can be locked to the upper edge of the through hole to limit the rotation of the fixed frame relative to the mask frame, and when the flexible tab is bent downward, Sex tab Since restrictions retaining projection is released, the fixing frame can be also configured to be rotatable relative to the mask frame.

  Furthermore, in the respiratory assistance mask of the present invention, the adjusting means is formed with a screw hole formed in the fixed frame and having an internal thread formed on an inner peripheral surface, and an external thread corresponding to the screw hole. An adjustment rod; and a connecting portion formed on the mask frame and inserted into the screw hole, to which a tip of the adjustment rod is fixed. Further, the connecting portion has an accommodation hole in the screw hole. The adjustment rod has a small diameter portion that is formed thinner than the male screw, and a flange that is formed so as to protrude to the tip of the small diameter portion, and the small diameter portion is The flange may be configured to be inserted into the receiving hole and to contact the rear of the connecting portion.

  With the above configuration, the respiratory assistance mask of the present invention has a fixed frame and a mask frame that can be rotated relative to each other, and an adjustment unit that adjusts the rotation angle, so that it can be used in accordance with different facial shapes depending on the user. The person's nose and mouth can be reliably shielded.

It is a perspective view in which the wearing condition of the respiratory assistance mask of a 1st embodiment of the present invention is shown. It is an exploded view in which the structure of the respiratory assistance mask of the 1st Embodiment of this invention is shown. It is a front view in which the structure of the adjustment means in the respiratory assistance mask of the 1st Embodiment of this invention is shown. (When the locking projection and the locking hole are fitted) It is a front view in which the structure of the adjustment means in the respiratory assistance mask of the 1st Embodiment of this invention is shown. (When the locking projection and locking hole are not fitted) It is a side view by which the angle adjustment method of the respiratory assistance mask of the 1st Embodiment of this invention is shown. It is a side view which the user with a comparatively low nose muscle wears the respiratory assistance mask of the 1st Embodiment of this invention. It is a side view which the user with a comparatively high nose muscle wears the respiratory assistance mask of the 1st Embodiment of this invention. It is a perspective view by which the structure of the respiratory assistance mask of the 2nd Embodiment of this invention is shown. It is sectional drawing by which the structure of the respiratory assistance mask of the 2nd Embodiment of this invention is shown. It is a perspective view by which the structure of the respiratory assistance mask of the 3rd Embodiment of this invention is shown. It is sectional drawing by which the structure of the respiratory assistance mask of the 3rd Embodiment of this invention is shown. It is a perspective view by which the structure of the respiratory assistance mask of the 4th Embodiment of this invention is shown. It is sectional drawing by which the structure of the respiratory assistance mask of the 4th Embodiment of this invention is shown. It is a perspective view in which an example of the conventional respiratory assistance mask is shown. 10 is a cross-sectional view of a forehead support for a face mask disclosed by Patent Literature 1. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing a wearing state of the respiratory assistance mask according to the first embodiment of the present invention, and FIG. 2 is an exploded view showing the configuration thereof.
As shown in FIGS. 1 and 2, the respiratory assistance mask of the present invention includes mask means 4, fixing means 3, and adjusting means 6. The mask means 4 is connected to the mask frame 41, the mask pad 42 fixed to the back surface of the mask frame 41 and configured to be in close contact with the user's face, and the air supply means. It is configured to have a connector 43 that can introduce air supply, and by receiving air supply from the air supply means, it is possible to assist breathing of the wearing user.

The fixing means 3 is formed to have a fixed frame 321 and a forehead frame 311 fixed to the upper end portion of the fixed frame 321 via the bridging portion 32. A rotation shaft 51 extending along the wearer's left-right direction is installed at the lower end of the fixed frame 321. The rotating shaft 51 is fitted in a shaft hole 52 formed in the lower end portion of the mask frame 41 so that the fixed frame 321 is in front of the mask frame 41. Accordingly, the fixed frame 321 is pivotally supported in front of the mask frame 4 by the rotation shaft 51 and the shaft hole 52, and rotates so as to approach or separate from the front surface of the mask frame 41 around the rotation shaft 51. can do.
Further, a through hole 322 is formed near the center of the fixed frame 321 as shown in FIG. As shown in FIG. 1, the connector 43 of the mask means 4 that can be connected to the air supply means and introduce air supply protrudes from the through hole 322.
The adjusting means 6 extends from the mask frame 41 forward so as to pass through the through-hole 322, and has a pair of flexible tabs 61 formed to have a series of locking holes 611, respectively. The fixed frame 321 is formed so as to face each other on both sides of the periphery of the through hole 322 so that it can be fitted in correspondence with the series of locking holes 611 respectively formed in the pair of flexible tabs 61. And a pair of locking projections 62.

FIGS. 3 and 4 show the correspondence between the flexible tab 61 and the locking projection 62. As shown in FIG. 3, since the pair of locking projections 62 are fitted in the pair of locking holes 611 formed in the flexible tab 61, the fixed frame 321 rotates with respect to the mask frame 41. In such a state, as shown in FIG. 4, when the pair of flexible tabs 61 are operated so as to approach each other, the locking projections 62 are moved from the locking holes 611. The fixing frame 321 can be rotated with respect to the mask frame 41, and the locking projection 62 can be fitted into another locking hole 611.
Further, as shown in FIGS. 1 and 2, one end of the urging means 313 is fixed to the back side of the forehead support frame 311, and the other end of the urging means 313 is in close contact with the user's forehead. Forehead pad 33 is attached, and first connection lugs 323 are formed on both sides near the lower end of fixed frame 321 and can be connected to the fastening band. A second connection lug 312 is formed, each of which can be connected to a clamping band.

As shown in FIG. 5, in a state where the locking projection 62 is fitted in the locking hole 611 closest to the mask frame 41 in the flexible tab 61, the mask pad 42 is moved forward. Since 801 cannot be in close contact with the wearer's face, which is relatively low, adjustment is necessary. In such a case, as shown in FIG. 6, when the adjusting means 6 is adjusted so that the locking protrusion 62 fits into the locking hole 611 closer to the tip of the flexible tab 61, the mask pad 42 is worn. Since it approaches the face of the wearer, the rotation angle of the fixed frame 321 with respect to the mask frame 41 can be changed to correspond to the face shape of the wearer. In particular, the force for fixing the fixing frame 321 to the wearer's face via the biasing means 313 from the tightening band connected to the second connection lug 312 is via the rotating shaft 51 as a fulcrum. Thus, the mask frame 41 can be pressed more strongly against the wearer's face by being transmitted to the locking projection 62 and the flexible tab 61, and airtightness can be improved.
Further, as shown in FIG. 7, when a user with a relatively high nose muscle 801 wears, the locking projection 62 fits into the locking hole 611 closer to the mask frame 41 in the flexible tab 61. When the adjusting means 6 is adjusted, it can be brought into close contact with the wearer's face as in FIG.

Next, a second embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 8, the second embodiment of the present invention has a configuration similar to that of the first embodiment, so the following description will focus on the difference, that is, the configuration of the adjusting means 6. As shown in the figure, the adjusting means 6 in this embodiment is configured to extend from the mask frame 41 so as to pass through the through hole 322 and to contact the upper edge of the through hole 322 in the extending route. And a series of locking projections 64 formed so as to protrude upward from the flexible tab 63. As shown in the cross-sectional view of FIG. 9, when the flexible tab 63 abuts the upper edge of the through hole 322, the locking protrusion 64 is locked to the upper edge of the through hole 322, thereby The rotation with respect to the frame 41 can be restricted. When the flexible tab 63 is operated to bend downward, the restriction by the locking projection 64 of the flexible tab 63 is released, so that the fixed frame 321 can also rotate with respect to the mask frame 41.

Next, a third embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 10, since the third embodiment of the present invention has a configuration similar to that of the first embodiment, the following description will focus on the configuration of the adjusting means 6. As shown in the drawing, the adjusting means 6 in the third embodiment is formed with a screw hole 65 formed in the fixed frame 321, in which an internal thread is formed, and a male screw 671 corresponding to the screw hole 65. And a connecting portion 66 formed on the mask frame 41 and to which the tip of the adjustment rod 67 inserted into the screw hole 65 is fixed. An accommodation hole 661 is formed in the connection portion 66 corresponding to the screw hole 65. The adjustment rod 67 includes a small diameter portion 673 that is formed thinner than the male screw 671 and a flange 672 that is formed so as to protrude from the tip of the small diameter portion 673. The small diameter portion 673 is inserted into the accommodation hole 661, and the flange 672 is in contact with the rear of the connecting portion 66. With this configuration, the rotation angle of the fixed frame 321 with respect to the mask frame 41 can be freely adjusted within a predetermined range by turning the adjustment rod 67.

Next, a fourth embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 12, the fourth embodiment of the present invention has a configuration similar to that of the second embodiment. As shown in the cross-sectional view of FIG. 13, in the fourth embodiment, two rotating shafts 53 that extend to both the left and right sides of the mask frame 41 are formed, and the fixed frame 321 has the two rotating shafts 53. Corresponding sockets 54 are formed so that the respective rotation shafts 53 can be fitted and rotated. That is, in the present invention, the lower end portion of the fixed frame 321 is pivotally supported by the lower end portion of the mask frame 41 so that the fixed frame 321 approaches or separates from the front surface of the mask frame 41 around the pivotal support. It is only necessary to be able to rotate, and there is no particular restriction on the arrangement of the rotation shaft and the pivot hole.

  With the above configuration, the respiratory assistance mask of the present invention has a fixed frame and a mask frame that can be rotated relative to each other, and an adjustment unit that adjusts the rotation angle, so that it can be used in accordance with different facial shapes depending on the user. It can be reliably shielded around a person's nose and mouth, and can be applied particularly to a respiratory assistance mask that provides oxygen to a patient.

DESCRIPTION OF SYMBOLS 3 Fixing means 311 Forehead support frame 312 2nd connection lug 313 Energizing means 32 Bridge part 321 Fixed frame 321 Fixing frame 322 Through-hole 323 1st connection lug 33 Forehead pad 4 Mask means 41 Mask frame 42 Mask pad 43 Connector 51 Rotating Shaft 52 Shaft Hole 53 Rotating Shaft 54 Socket 6 Adjusting Means 61 Flexible Tab 611 Locking Hole 62 Locking Projection 63 Flexible Tab 64 Locking Projection 65 Screw Hole 66 Connecting Portion 661 Housing Hole 67 Adjusting Rod 671 Male thread 672 Flange 673 Small diameter part 801 Nose muscle

Claims (1)

A respirator mask comprising a mask means, a fixing means, and an adjusting means, and is connected to the air supply means to receive air supply, thereby assisting a user wearing the breathing,
The mask means includes a mask frame, and a mask pad that is fixed to the back surface of the mask frame and configured to be in close contact with the user's face,
The fixing means includes a fixed frame and a forehead frame, and the fixed frame is disposed in front of the mask frame, and a lower end thereof is pivotally supported by a lower end of the mask frame, And the whole is configured to be able to rotate so as to approach or separate from the front surface of the mask frame around the pivot, and the forehead support frame is connected via a bridging portion. Fixed to the upper end of the fixed frame;
The adjusting means is configured to adjustably stop the rotation of the fixed frame relative to the mask frame between the fixed frame and the mask frame;
One end of the urging means is fixed to the back side of the forehead frame, and the other end of the urging means is attached with a forehead pad that can be in close contact with the user's forehead,
First connection lugs are formed on both sides near the lower end of the fixed frame,
Second connection lugs are formed on both sides of the forehead support frame,
In addition, a fastening band is attached to each of the fixed frame and the forehead frame by the first and second connection lugs,
The mask means has a connector capable of introducing air supply in connection with the air supply means, and a through-hole through which the connector can protrude is formed near the center of the fixed frame,
The adjustment means extends forward from the mask frame so as to pass through the through-hole, and each has a pair of flexible tabs formed to have a series of locking holes, A pair of latches formed so as to face each other on both sides of the periphery of the through hole in the fixed frame so that they can be fitted in correspondence with a series of latch holes respectively formed in the flexible tab With protrusions ,
Accordingly, when the first connecting lug and the second connecting lug are attached to the user's face by using a tightening band , the locking hole in the flexible tab and the passage in the fixing frame are passed. A respiratory assistance mask characterized in that the fitting angle of the mask frame with respect to the front surface of the mask frame is limited by fitting with a locking projection on the periphery of the hole , and the adaptability of the mask means to the face can be adjusted.

Images