CN111588958A

CN111588958A - Whole face mask

Info

Publication number: CN111588958A
Application number: CN201910126365.1A
Authority: CN
Inventors: 张二郎
Original assignee: Hsiner Co Ltd
Current assignee: Hsiner Co Ltd
Priority date: 2019-02-20
Filing date: 2019-02-20
Publication date: 2020-08-28
Anticipated expiration: 2039-02-20
Also published as: CN111588958B

Abstract

A full face mask is adapted to be placed against the face of a user. The full face mask comprises a base, a cushion seat and two top buckles. The base comprises a body and an air inlet hole penetrating through the body along the front-back direction. The body is provided with a top part corresponding to the forehead of the user, a bottom part opposite to the top part, and a left side part and a right side part which are arranged at intervals and connect the top part and the bottom part. The cushion seat is made of silica gel and is suitable for being abutted against the face of the user. The cushion seat comprises a contact part which is annular and is connected with the back of the body along the front-back direction. The contact part and the base are matched to define an accommodating space communicated with the air inlet hole. The top buckle ring is respectively connected with the left side part and the right side part and is adjacent to the top part. Each top buckle ring is formed with a first buckle hole. The base further includes an extension extending rearward from the top in the front-rear direction. The cushion seat also comprises a leaning area which corresponds to and covers the extending part.

Description

Whole face mask

Technical Field

The invention relates to medical equipment, in particular to a full-face mask matched with a positive pressure respirator for use.

Background

Generally, a positive pressure respirator is used together with a face mask to treat patients with sleep apnea in medical treatment.

Referring to fig. 1 and 2, a conventional full-face mask adapted to be placed against a face of a user includes a base 11, an air inlet hole 13 penetrating the base 11 along an axial direction D and adapted to be connected to a positive pressure respirator 16, a cushion 12 made of silicone rubber and having a ring shape and hermetically connected to the base 11 along the axial direction D and located outside the air inlet hole 13, and a buckle group 14 connected to a periphery of the base 11. The base 11 has a top portion 111 corresponding to the forehead of the user, a bottom portion 112 opposite to the top portion 111, and a left side portion 113 and a right side portion 114 disposed at an interval and connecting the top portion 111 and the bottom portion 112. The cushion 12 has an abutting portion 121 corresponding to the top portion 111 and abutting against the forehead of the user. The buckle ring set 14 includes two top buckle rings 141 respectively disposed on the left side portion 113 and the right side portion 114 and adjacent to two ends of the abutting portion 121.

When in use, the existing full face mask is fixed in front of the face of the user by using a head band 15 connected with the top buckle 141, and the cushion 12 is abutted against the face of the user, and a containing space 17 communicated with the air inlet 13 is formed among the face of the user, the base 11 and the cushion 12. Subsequently, the air inlet 13 is connected to the positive pressure respirator 16, and then the positive pressure respirator 16 is operated to input the pressure gas (e.g., air, oxygen, etc.) into the accommodating space 17 through the air inlet 13 for the user to use.

However, in practice, it is found that although the headband 15 tightly binds the top buckle 141 to apply a pulling force to the base 11 toward the user, since the top 111 has elasticity, when the two ends are stressed, the displacement of the center of the top 111 along the axial direction D is small, so that the force driving the center of the abutting portion 121 toward the forehead of the user is small, and therefore the headband is not easily pressed in front of the forehead of the user, and the therapy principle of the male respirator 16 is that the pressure of the gas in the accommodating space 17 is greater than the external atmospheric pressure by inputting the pressure gas, so as to maintain the operation of the upper respiratory tract of the user, the pressure difference is more likely to cause a gap 18 to be formed between the center of the abutting portion 121 and the user.

As a result, the gas in the accommodating space 17 leaks out from the gap 18, and the gas pressure in the accommodating space 17 cannot be maintained higher than the external atmospheric pressure, which results in poor therapeutic effect. In this regard, some people adjust the headband 15 to increase the pulling force applied to the base 11 through the top buckle 141, so that the abutting portion 121 is more closely attached to the face of the user to avoid the gap 18, however, since a greater pulling force is applied to the top buckle 141, the two ends of the abutting portion 121 are pressed against the face of the user, which causes discomfort to the user.

Disclosure of Invention

The invention aims to provide a full-face mask capable of preventing gas from leaking.

The full face mask of the invention is suitable for being abutted against the face of a user. The full face mask comprises a base, a cushion seat and two top buckles. The base comprises a body and an air inlet hole penetrating through the body along the front-back direction. The body is provided with a top part corresponding to the forehead of the user, a bottom part opposite to the top part, and a left side part and a right side part which are arranged at intervals and connect the top part and the bottom part. The cushion seat is made of silica gel and is suitable for being abutted against the face of the user. The cushion seat comprises a contact part which is annular and is connected with the rear side of the body along the front-rear direction and is positioned at the outer side of the air inlet hole. The contact part and the base are matched to define an accommodating space communicated with the air inlet hole. The top buckle rings are respectively connected with the left side part and the right side part and are adjacent to the top part, and each top buckle ring is provided with a first clamping hole. The base further includes an extension portion extending rearward from the top portion of the body in the front-rear direction to avoid a gap between the contact portion and the forehead of the user. The cushion seat also comprises a leaning area which corresponds to and covers the extending part.

In the full face mask of the present invention, the extension portion of the base has a protruding region extending rearward from the top portion in the front-rear direction. The thickness of the abutting area defining the cushion seat along the front-rear direction is T1. The protruding region has a thickness T2 in the front-rear direction. T2/T1 is between 50% and 90%.

The full-face mask of the present invention defines a lateral direction perpendicular to the front-to-back direction. The maximum spacing between the first card holes along the transverse direction is defined as W1, and the width of the protruding region along the transverse direction is defined as W2, W2/W1 is between 6% and 28%.

The full face mask of the invention has W2/W1 of 17-28%.

The full-face mask of the present invention defines a lateral direction perpendicular to the front-to-back direction. The extension part of the base is provided with a plurality of protruding areas which extend backwards from the top along the front-back direction and are spaced from each other along the transverse direction. A maximum spacing W1 between the first card holes in the transverse direction is defined. The sum of the widths of the projecting regions in the transverse direction is less than 6 cm, and the ratio of the sum of the widths of the projecting regions in the transverse direction to W1 is between 6% and 28%.

The full face mask of the invention also comprises two bottom buckles. The bottom buckle ring is respectively connected with the left side part and the right side part and is adjacent to the bottom part. Each bottom retaining ring is formed with a second retaining hole.

The full face mask is characterized in that the base, the top buckle ring and the bottom buckle ring are integrally made of plastic.

In the full face mask of the present invention, the cushion is integrated with the base by fusion processing after the base, the top buckle ring and the bottom buckle ring are integrally formed.

In the full face mask of the present invention, the cushion further includes an outer portion that is annular and connects the front side of the body in the front-rear direction and corresponds to the contact portion, and an intermediate portion that connects the outer peripheral surface of the body of the base and connects between the contact portion and the outer portion. Each top buckle ring is provided with a first connecting area which is connected with the body and is wrapped by the cushion seat, and a first force applying area which is connected with the first connecting area and protrudes out of the cushion seat. Each first clamping hole is formed in the corresponding first force application area. Each bottom retaining ring is provided with a second connecting area which is connected with the body and is coated by the cushion seat, and a second force application area which is connected with the second connecting area and protrudes out of the cushion seat. Each second clamping hole is formed in the corresponding second force application area.

The base of the full face mask further comprises a guide hole which penetrates through the body, is positioned beside the air inlet hole and is communicated with the accommodating space. The full face mask also includes an orifice stopper removably closing the guide aperture.

The invention has the beneficial effects that: through the arrangement of the extension part which is coated on the abutting area, when the full face mask is fixed on the front side of the face of the user by applying force to the top buckle ring, the extension part can abut against the abutting area, so that the abutting area stably abuts against the forehead of the user, the forehead cannot be deformed by gas pressure to generate a gap, and gas leakage can be avoided.

Drawings

FIG. 1 is a perspective view illustrating a prior art full face mask coupled to a positive pressure respirator;

FIG. 2 is a top view illustrating the prior art full-face mask coupled to the positive pressure respirator;

FIG. 3 is a perspective view of a first embodiment of the full face mask of the present invention;

FIG. 4 is a front view of the first embodiment;

FIG. 5 is an exploded perspective view of the first embodiment;

FIG. 6 is a cross-sectional view taken along line VI-VI of FIG. 4;

FIG. 7 is a top view of the first embodiment;

FIG. 8 is a perspective view of a second embodiment of the full face mask of the present invention;

fig. 9 is a top view of the second embodiment.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and examples.

Referring to fig. 3, 4 and 5, a first embodiment of the full-face mask of the present invention is adapted for attachment to a headband unit 21 for abutment against the face of a user 22 and for attachment to a positive pressure respirator 23. The headband unit 21 comprises a band 211 and two fasteners 212 connected to the band 211. The belt body 211 has two top ends 213 and two bottom ends 214 connected to the fasteners 212, respectively. The full face mask includes a base 3, a cushion 4, two top clasps 5, two bottom clasps 6, and a hole plug 7.

The base 3 includes a body 31, an air inlet hole 32 penetrating the body 31 along a front-rear direction X and adapted to be connected to the positive pressure respirator 23, an extension 33 extending rearward from the body 31 along the front-rear direction X, and a guide hole 34 penetrating the body 31 and located beside the air inlet hole 32. The body 31 has a top portion 311 corresponding to the forehead of the user 22, a bottom portion 312 opposite to the top portion 311 and corresponding to the chin of the user 22, and a left side portion 313 and a right side portion 314 spaced apart from and connecting the top portion 311 and the bottom portion 312 and corresponding to the cheeks of the user 22, respectively. The extension 33 has a protruding region 331 extending rearward from the top 311 in the front-rear direction X.

Referring to fig. 3, 5 and 6, the cushion 4 is made of silicone and is adapted to rest against the face of the user 22. The cushion 4 includes a contact portion 41 that is annular and is connected to the rear of the body 31 along the front-rear direction X and is located outside the air inlet 32, an outer portion 42 that is annular and is connected to the front of the body 31 along the front-rear direction X and corresponds to the contact portion 41, and an intermediate portion 43 that is connected to the outer peripheral surface of the body 31 of the base 3 and connects between the contact portion 41 and the outer portion 42. The contact portion 41 and the base 3 cooperate to define an accommodating space 8 communicating the air inlet 32 and the guiding hole 34. The contact portion 41 includes an abutting region 411 corresponding to and covering the extension portion 33.

Referring to fig. 4, 5 and 7, the thickness of the abutting region 411 of the pad 4 along the front-back direction X is defined as T1, the thickness of the protruding region 331 of the extending portion 33 along the front-back direction X is defined as T2, and T2/T1 is between 50% and 90%. Thereby, the extension 33 has a sufficient thickness (extension length), and the portion of the rear end section of the abutting region 411 beyond the extension 33 provides sufficient elastic deformation to ensure the contact portion 41 tightly abutting against the forehead of the user 22. Preferably, the stiffness or flexure resistance of the extension 33 is higher than the stiffness or flexure resistance of the contact 41, which in this embodiment is a shaped plastic sheet versus silicone.

The top clasp ring 5 connects the left side portion 313 and the right side portion 314 adjacent to the top portion 311, respectively. Each top buckle ring 5 has a first connecting region 51 connected to the body 31 and covered by the pad 4, and a first force applying region 52 connected to the first connecting region 51 and protruding outside the pad 4. Each of the first force applying regions 52 is adapted to detachably connect the respective top end portions 213 of the headband unit 21 and has a first catching hole 521.

A transverse direction Y perpendicular to the front-rear direction X is defined, a maximum distance W1 between the first locking holes 521 along the transverse direction Y is defined, and a width W2 of the protruding region 331 of the extending portion 33 along the transverse direction Y is defined, wherein W2/W1 is between 6% and 28%, preferably between 17% and 28%. Therefore, the width of the protruding region 331 is relatively much smaller than the width of the whole top portion 311, so that it becomes an independently protruding sheet, maintains relative independence when the whole top portion 311 is pulled to bend and deform, and is more closely and independently adapted to the curved arc section of the forehead region of the user 22. Preferably, the protruding region 331 is located primarily near the forehead area of the user 22.

The bottom clasp 6 connects the left side portion 313 and the right side portion 314 adjacent to the bottom portion 312. Each bottom buckle ring 6 has a second connecting area 61 connected with the body 31 and covered by the cushion seat 4, and a second force applying area 62 connected with the second connecting area 61 and protruding out of the cushion seat 4. Each of the second force applying areas 62 is adapted to detachably engage with the corresponding fastener 212 of the headband unit 21, and has a second fastening hole 621.

The plug member 7 is adapted to removably close the guide hole 34 of the base 3.

In the manufacturing process, the base 3, the top retaining ring 5 and the bottom retaining ring 6 are integrally made of plastic, and then the base 3 and the cushion 4 are integrated by fusion treatment.

In use, the top end 213 of the headband unit 21 is connected to the first force application area 52 of the top clasp 5, the contact portion 41 of the cushion 4 is abutted against the face of the user 22, part of the face of the user 22 is extended into the accommodating space 8, and the fasteners 212 of the headband unit 21 are detachably engaged with the second force application area 62 of the bottom clasp 6.

Since the top end 213 of the headband unit 21 can be adjusted to increase or decrease the tension applied to the base 3 via the top clasp 5 and the bottom end 214 can also be adjusted to increase or decrease the tension applied to the base 3 via the bottom clasp 6, the full-face mask can be secured in front of the face of the user 22.

Finally, after the positive pressure respirator 23 is connected to the air inlet 32, the positive pressure respirator 23 can be operated to input pressure gas (e.g., air, oxygen, etc.) into the accommodating space 8 through the air inlet 32 for the user 22 to use.

By providing the extension portion 33 covered on the abutting region 411, when the headband unit 21 applies a pulling force to the base 3 through the top buckle 5, the extension portion 33 can abut against the abutting region 411, so that the abutting region 411 can stably abut against the forehead of the user 22, and therefore the abutting region 411 can be stably positioned without adjusting the top end portion 213 to increase the pulling force applied to the base 3 through the top buckle 5, and a gap (not shown) is not generated due to deformation caused by gas pressure, so as to prevent a gap from being generated between the contact portion 41 and the forehead of the user 22, thereby preventing gas leakage.

Furthermore, when the breathing mask is used, if a catheter (not shown) is inserted into the user 22 at the same time, the plug member 7 can be detached from the guiding hole 34, and the catheter can be inserted into the accommodating space 8 through the guiding hole 34 for use by the user 22.

It should be noted that, in the present embodiment, the base 3, the top retaining ring 5 and the bottom retaining ring 6 are integrally made of plastic and are integrated with the base 4, however, in other variations, the above components may be separately manufactured and then connected together, and the same purpose can be achieved as long as the base 3 can be connected to the base 4 in an airtight manner, so that the accommodating space 8 can be maintained in an airtight state.

Referring to fig. 8 and 9, a second embodiment of the full-face mask of the present invention is similar to the first embodiment, except that:

the extension 33 has two protruding regions 331 extending rearward from the top 311 in the front-rear direction X and spaced apart from each other in the transverse direction Y.

Widths of the protruding region 331 in the transverse direction Y are defined as W3 and W4, (W3+ W4)/W1 are between 6% and 28% (W1 is a maximum spacing between the first card holes 521 in the transverse direction Y), and W3+ W4 is less than 6 cm. Thus, the second embodiment can achieve the same purpose and effect as the first embodiment.

It should be noted that, in the second embodiment, the number of the protruding regions 331 is two, however, in other implementation manners, the number of the protruding regions 331 may be more than three, and the same purpose and efficacy can be achieved as long as the sum of the widths of the protruding regions 331 in the transverse direction is less than 6 cm, and the ratio of the sum of the widths of the protruding regions 331 in the transverse direction to the W1 is between 6% and 28%.

In summary, when the extension portion 33 is covered on the abutting area 411 and the top buckle 5 is applied with force to fix the full face mask on the front of the face of the user, the extension portion 33 can abut against the abutting area 411, so that the abutting area 411 stably abuts against the forehead of the user 22, and the gap is not generated due to deformation under the influence of gas pressure, and the gas leakage can be avoided, thereby achieving the purpose of the present invention.

Claims

1. A full face mask is suitable for leaning against the face of a user and comprises a base, a cushion seat and two top buckle rings, wherein the base comprises a body and an air inlet hole penetrating through the body along the front-back direction, the body is provided with a top corresponding to the forehead of the user, a bottom opposite to the top and a left side part and a right side part which are arranged at intervals and are connected with the top and the bottom, the cushion seat is made of silica gel and is suitable for leaning against the face of the user, the cushion seat comprises a contact part which is annular and is connected with the rear side of the body along the front-back direction and is positioned at the outer side of the air inlet hole, the contact part and the base are matched to define an accommodating space communicated with the air inlet hole, the top buckle rings are respectively connected with the left side part and the right side part and are adjacent to the top, and each top buckle ring is formed with a first buckle hole, the method is characterized in that: the base further comprises an extension portion extending backwards from the top of the body along the front-back direction, and the cushion base further comprises a leaning area corresponding to and wrapping the extension portion.

2. The full-face mask according to claim 1, wherein: the extension portion of the base has a protruding region extending rearward from the top portion in the front-rear direction, a thickness of the abutment region defining the pad in the front-rear direction is T1, a thickness of the protruding region in the front-rear direction is T2, and T2/T1 is between 50% and 90%.

3. The full-face mask according to claim 2, wherein: a transverse direction perpendicular to the front-rear direction is defined, a maximum spacing between the first card holes in the transverse direction is defined as W1, and a width of the protruding region in the transverse direction is defined as W2, W2/W1 is between 6% and 28%.

4. The full-face mask according to claim 3, wherein: W2/W1 is between 17% and 28%.

5. The full-face mask according to claim 1, wherein: defining a transverse direction perpendicular to the front-back direction, the extension portion of the base having a plurality of protruding regions extending rearward from the top portion in the front-back direction and spaced apart from each other in the transverse direction, defining a maximum spacing W1 between the first card holes in the transverse direction, a sum of widths of the protruding regions in the transverse direction being less than 6 cm, and a ratio of the sum of widths of the protruding regions in the transverse direction to W1 being between 6% and 28%.

6. The full-face mask according to claim 1, wherein: the full face mask further comprises two bottom buckles, the bottom buckles are respectively connected with the left side portion and the right side portion and are adjacent to the bottom, and a second clamping hole is formed in each bottom buckle.

7. The full-face mask according to claim 6, wherein: the base, the top retaining ring and the bottom retaining ring are integrally made of plastic.

8. The full-face mask according to claim 7, wherein: the cushion seat is integrated with the base through fusion treatment after the base, the top buckle ring and the bottom buckle ring are integrally manufactured.

9. The full-face mask according to claim 8, wherein: the cushion seat also comprises an outer side part which is annular and is connected with the front side of the body along the front-back direction and corresponds to the contact part, and a middle part which is connected with the outer peripheral surface of the body of the base and is connected between the contact part and the outer side part, each top buckle ring is provided with a first connecting area which is connected with the body and is coated by the cushion seat, and a first force applying area which is connected with the first connecting area and protrudes out of the cushion seat, each first buckle hole is formed in the respective first force applying area, each bottom buckle ring is provided with a second connecting area which is connected with the body and is coated by the cushion seat, and a second force applying area which is connected with the second connecting area and protrudes out of the cushion seat, and each second buckle hole is formed in the respective second force applying area.

10. The full-face mask according to claim 9, wherein: the base further comprises a guide hole which penetrates through the body, is positioned beside the air inlet hole and is communicated with the accommodating space, and the full face mask further comprises a plug piece which detachably seals the guide hole.