CN104906674B - A kind of breathing mask and forehead support component - Google Patents

Abstract

The present invention proposes a forehead support assembly for a respiratory mask. The breathing mask includes a main frame. The forehead support assembly includes: a forehead support pad, which is used to fit the forehead on the face of the human body; a connecting part, including a first end connected to the main frame and a second end rotatably connected to the forehead support pad; wherein , the forehead support pad includes a plurality of matching surfaces, and the distance between the plurality of matching surfaces and the rotation axis when the forehead support pad rotates is multiple. When the wearer wears the breathing mask with the forehead support assembly of the present invention, he can conveniently rotate the forehead support pad so that the forehead support assembly is in a proper position, improving the wearing comfort.

Description

A kind of respiratory mask and forehead support assembly

technical field

The invention relates to an auxiliary breathing apparatus, in particular to a breathing mask and a forehead support assembly.

Background technique

As we all know, breathing masks are mainly used in the treatment of continuous positive airway pressure ventilation for various respiratory diseases or sleep-disordered breathing. Respiratory masks usually need to be connected to a ventilator so that the breathable gas output by the ventilator can be provided to the wearer.

Respiratory masks need to be worn for a long time, and the wearing comfort has a great impact on the user experience. The breathing mask provided with the forehead support pad can bear pressure on the forehead of the wearer, and provide support through the forehead to relieve the pressure of the breathing mask on the wearer's face. However, due to race, age, and individual differences, different wearers have different forehead heights. Therefore, different wearers require different heights of the forehead support pads, and the forehead support pads provided on existing breathing masks cannot meet this requirement well.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiency that the forehead support pad of the breathing mask in the prior art cannot well meet the forehead heights of different wearers.

In view of the above problems, the present invention proposes a forehead support assembly, which is used to connect to the main frame of the breathing mask. The forehead support assembly includes: a forehead support pad, which is used to fit the forehead on the face of the human body; a connecting part, including A first end connected to the main frame and a second end rotatably connected to the forehead support pad; wherein, the forehead support pad includes a plurality of mating surfaces, and the plurality of mating surfaces rotate to the forehead support pad There are multiple distances between the rotation axes.

According to an embodiment of the forehead support assembly of the present invention, it includes a connection part connected to the main frame and a forehead support pad disposed at the second end of the connection part. The forehead support pad can rotate clockwise or counterclockwise around the second end of the connecting part in a plane parallel to the symmetrical plane of the wearer's head. When wearing a respirator, the axis of rotation is perpendicular to the plane of symmetry of the wearer's head. When the forehead support pad is rotated, the distance from the rotation axis of the forehead support pad to the wearer's forehead when the second end of the connecting portion rotates relative to the forehead will be different. The forehead support pad includes a plurality of matching surfaces, and the distance between the plurality of matching surfaces and the rotation axis when the forehead support pad rotates is multiple. The mating surface refers to the surface where the forehead support pad contacts the wearer's forehead when the forehead support pad is rotated to a certain position. The wearer can choose a suitable mating surface according to the distance between the rotation axis and the wearer's forehead, that is, the distance from the mating surface to the rotation axis is suitable for the height of the wearer's forehead. In this way, the forehead support pad satisfies the Different wearers require different heights of the forehead support pad, which improves the wearer's comfort.

In one embodiment, the forehead support assembly includes a locking mechanism that locks the forehead support pad into position.

In one embodiment, the locking mechanism includes a first locating piece arranged on the forehead support pad and a second locating piece arranged at the second end of the connecting portion, the second locating piece and the first locating piece The components cooperate to lock and position the rotation of the forehead support pad around the second end of the connecting part.

In one embodiment, the first positioning member includes first protrusions that are evenly distributed around the rotation axis in the circumferential direction, and the second positioning member includes a second end that is arranged on the second end of the connecting portion and that is connected with the first protrusion. A first recess with convex-convex fit; or, the first positioning member includes second recesses uniformly distributed around the rotation axis in the circumferential direction, and the second positioning member includes a second end disposed at the second end of the connecting portion An elastic piece and a second protrusion arranged on the elastic piece and matched with the second concave-convex.

In one embodiment, the cross-sectional shape of the forehead support pad includes a rectangle, a circle, a polygon, an ellipse or a cam shape.

In one embodiment, the forehead support assembly includes two forehead support pads and a pivot arranged between the two forehead support pads, a second end of the connecting part is provided with a The pivot joint of the shaft is pivotally connected, and the axis of the pivot is the rotation axis.

In one embodiment, the forehead support pad is connected to the second end of the connecting part through a ratchet and ratchet mechanism.

In one embodiment, the forehead support pad is provided with a mounting portion for mounting the headband connector.

In one embodiment, the mounting portion includes a stepped hole, and the diameter of the first portion close to the external environment is smaller than the diameter of the second portion far away from the external environment.

The present invention also proposes a breathing mask, which includes a main frame and the aforementioned forehead support assembly, and a connecting portion of the forehead support assembly is fixedly connected to the main frame.

An advantage of embodiments of the forehead support assembly of the present invention over the prior art is that the forehead support pad includes a plurality of mating surfaces having multiple distances from the axis of rotation of the forehead support pad as it rotates. The wearer can rotate the forehead support pad according to his own forehead characteristics, and choose a matching surface suitable for his forehead height, so that the forehead support pad can better fit his forehead and improve wearing comfort.

Description of drawings

Hereinafter, the present invention will be described in more detail based on the embodiments with reference to the accompanying drawings.

Fig. 1 is a schematic exploded view of the structure of the breathing mask of the present invention.

Fig. 2 is a schematic structural view of the first embodiment of the forehead support pad of the present invention.

Fig. 3 is a schematic structural view of the second embodiment of the forehead support pad of the present invention.

Fig. 4 is a schematic structural view of the third embodiment of the forehead support pad of the present invention.

Fig. 5 is a schematic structural view of the fourth embodiment of the forehead support pad of the present invention.

Fig. 6 is a schematic structural view of the fifth embodiment of the forehead support pad of the present invention.

Fig. 7 is an exploded schematic diagram of another embodiment of the breathing mask of the present invention.

FIG. 8 is an enlarged schematic view of point A in FIG. 7 .

In the figures, the same parts are given the same reference numerals. The drawings are not drawn to scale.

detailed description

The present invention will be further described below in conjunction with accompanying drawing.

Figure 1 schematically shows an exploded structure of a respiratory mask 10 of the present invention.

The embodiment of the breathing mask 10 of the present invention mainly includes a forehead support assembly, a main frame 13 and an elbow 14 installed on the main frame 13 . The forehead support assembly provides support between the respiratory mask 10 and the wearer's forehead. The wearer adjusts the forehead support assembly to keep the breathing mask 10 in a proper position on the wearer's face, so as to relieve the pressure of the breathing mask 10 on the wearer's face. The main frame 13 is provided with a soft cushion (not shown in the figure) forming a seal between the wearer's face and an elbow 14 for delivering inhalable gas to the patient. The respiratory mask 10 includes a full face mask and a nasal mask.

The forehead support assembly includes a forehead support pad 11 and its connecting portion 12 arranged on the main frame 13 of the breathing mask 10 . The connection part 12 includes a first end connected to the frame and a second end connected to the first end. The forehead support pad 11 is pivotally connected to the second end of the connecting portion 12 . The forehead support pad 11 can rotate around the axis of rotation when the connecting portion 12 and the forehead support pad 11 rotate relative to each other. The wearer can rotate the forehead support pad 11 to select a suitable mating surface 111 according to the height of his forehead. The forehead support pad 11 is pivotally connected to the second end of the connecting portion 12 through the pivot portion. The axis of the pivot joint is the above-mentioned rotation axis. In this embodiment, the pivot joint may be an open slot or a through hole.

When the wearer puts on the breathing mask 10, the matching surface 111 provided on the forehead support pad 11 can be pressed against the wearer's forehead. The mating surface 111 refers to the surface that contacts the wearer's forehead when the forehead support pad 11 is rotated to a certain position. Accordingly, there are a plurality of mating surfaces 111 between the entire outer contour of the forehead support pad 11 and the wearer's forehead. In this way, when the forehead support pad 11 is supported behind the forehead, it can provide additional supporting force for the entire breathing mask 10 through the connecting portion 12, so as to reduce the pressure of the breathing mask 10 on the wearer's face and improve wearing comfort. The wearer can rotate the forehead support pad 11 conveniently and independently, and select the mating surface 111 suitable for his forehead height, so as to keep the breathing mask 10 in a proper position, thereby alleviating the oppressive feeling of the breathing mask 10 on the wearer's face.

FIG. 2 schematically shows the structure of the first embodiment of the forehead support pad 11 .

The cross-section of the forehead support pad 11 is as shown in Figure 2, is a rectangle with rounded corners, the radial dimension ( H1, H2, H3, H4) are different. FIG. 2 only schematically shows four positions that can be pressed against the wearer's forehead, but other positions where the forehead support pad 11 can be pressed against the forehead are not excluded.

After the wearer puts on the breathing mask 10, the wearer can adjust the forehead support pad 11 autonomously to adapt to his own forehead characteristics. Select a pressing position that is suitable for the height of the forehead from four pressing positions, so as to utilize the forehead support pad 11 and the connecting portion 12 to keep the breathing mask 10 in a position where the pressure on the wearer's own face is minimal, so that the wearer Satisfactory wearing comfort can be obtained.

The cross-sectional shape of the forehead support pad 11 can also have other deformations, and it can be processed into different shapes according to different needs, so as to meet a larger adjustment range and more adjustment options, making a forehead support pad 11 Wider and stronger adaptability to different forehead heights.

In one embodiment, the cross-sectional shape of the forehead support pad 11 is a regular hexagon (as shown in FIG. 3 ). The radial dimensions from the axis of the pivot joint to the six surfaces can be different. When the axis of the pivot joint is located on the symmetry axis of the hexagon, as shown in the figure, there are only three pressing positions with different radial dimensions on the forehead support pad 11 .

In one embodiment, the cross-sectional shape of the forehead support pad 11 is circular (as shown in FIG. 4 ). The axis of the pivot joint is set eccentrically relative to the center of the circle, so that the forehead support pad 11 can be adjusted within the range of the shortest section and the longest section of the radial dimension. When the cross-section of the forehead support pad 11 is in this shape, the outer contour of the forehead support part can be made smoother without edges, preventing the edges from scratching the wearer's skin, and improving the safety and comfort of wearing Spend.

In one embodiment, the cross-sectional shape of the forehead support pad 11 is oval (as shown in FIG. 5 ). The position of the axis of the pivotal joint may be located at the center of the ellipse as shown in the figure, or may be located at other positions than the center as required. When the axis of the pivot joint is at the central position shown in the figure, the range of variation from the axis of the pivot joint to the radial dimension of the contour surface of the forehead support pad 11 is between the short axis and the long axis of the ellipse (including the short axis). axis and major axis). Such a forehead support pad 11 is divided into four identical areas, which can make the wearer rotate the forehead support pad 11 more quickly and conveniently to use one of the four identical areas to press against the forehead without spending a long time to rotate to select an appropriate position.

In one embodiment, the cross-section of the forehead support pad 11 is curved with an irregular profile (as shown in FIG. 6 ). Irregular profile curves include cam shapes. When the pivot joint is located at the center of the curve, the radial dimension from the axis of the pivot joint to any position on the curve is different. Therefore, the adjustable range of the forehead support pad 11 is the largest. In addition, the forehead of a person is not all flat, and such a forehead support pad 11 with an irregular outer contour surface can better fit the wearer's forehead, improving wearing comfort.

The breathing mask will be further described below in conjunction with FIG. 1 , FIG. 7 and FIG. 8 .

The forehead support pad 11 is connected with the pivot joint. The forehead support pad 11 is fixedly connected with the pivot joint. The forehead support pad 11 and the pivot joint can be assembled in a later stage, or can be manufactured in one piece. The connection part 12 is provided with a connection position pivotally connected with the pivot part. After the pivot joint is matched with the connection position, the pivot joint can rotate completely in the connection position, so that the forehead support pad 11 can rotate in two directions without restriction.

In one embodiment, the pivot joint can also be arranged on the connection part 12 , while the connection location is arranged on the forehead support pad 11 .

The forehead support assembly includes a locking mechanism. The locking mechanism is configured to lock and position the rotation of the forehead support pad 11 around the second end of the connecting portion 12 .

The locking mechanism includes a first positioning element disposed on the forehead support pad 11 and a second positioning element disposed on the second end of the connecting portion 12 . The second positioning part cooperates with the first positioning part to realize the positioning of the forehead support pad 11 . When the wearer adjusts the forehead support pad 11 to a position suitable for the height of his own forehead, the cooperation of the first locator and the second locator can position the forehead support pad 11 at this position, preventing the forehead support pad 11, the position of the forehead support pad 11 will shift and affect the wearing effect. After the first positioning part and the second positioning part are matched, the position of the forehead support pad 11 can remain unchanged, and when the wearer uses it for the second time, it can be worn directly without adjusting the forehead support pad 11 again, which saves wearing time. time spent.

In one embodiment, the first positioning member includes first protrusions 113 uniformly distributed around the pivot joint in the circumferential direction, and the first protrusions 113 are located on the surface of the forehead support pad 11 provided with the pivot joint. The radial dimensions from each first protrusion 113 to the axis of the pivot joint are equal. The line connecting each first protrusion 113 with the axis of the pivot joint corresponds to two pressing positions, and the radial dimensions of the two pressing positions are different. The second positioning member includes a first concave portion 121 disposed on the connecting portion 12 and cooperating with the first protrusion 113 in concave-convex manner. When the wearer rotates the forehead support pad 11, there is elastic deformation between the first protrusion 113 and the first concave portion 121, so that under the action of an external force, the first protrusion 113 can move from the first concave portion 121 and enter another first recess 121 state. After the wearer adjusts the forehead support pad 11 to a proper position, the rotational force on the forehead support pad 11 is removed, and the first protrusion 113 sinks into the first concave portion 121 to form a positioning for the forehead support pad 11 . In one embodiment, the first protrusion 113 may be disposed on the connecting portion 12 , while the first concave portion 121 is disposed on the forehead support pad 11 .

As shown in FIGS. 7 and 8 , in one embodiment, the first positioning member includes second recesses 115 that are evenly distributed around the circumference of the pivot joint, and the second recesses 115 are arranged on the forehead support pad 11 provided with a pivot joint. On the surface of the portion, the second positioning member includes an elastic piece 123 arranged on the connecting portion 12 and a second protrusion 124 arranged on the elastic piece 123 and matched with the second concave portion 115 in concave-convex manner.

The forehead support pad 11 has elasticity. Optionally, the forehead support pad 11 is made of materials such as silica gel or rubber.

In one embodiment, the extension profile of the second protrusion 124 is curved, and the curved arc may be a part of the circumference. When the second protrusion 124 is a curved segment instead of a contact-shaped protrusion, the contact area with the second recess 115 is larger, so that the positioning of the forehead support pad 11 is more stable. The second protrusion 124 is arranged on the elastic piece 123. When the forehead support pad 11 is rotated, the second protrusion 124 will escape from the second recess 115 provided on the forehead support pad 11. Pushed by the protrusion 124 , the elastic piece 123 will be elastically deformed to facilitate the second protrusion 124 to escape from the second concave portion 115 . After the wearer adjusts the position of the forehead support pad 11, the second protrusion 124 sinks into the second concave portion 115, and the elastic piece 123 fits with the forehead support pad 11, thus increasing the friction between the forehead support pad 11 and the connecting portion 12 force, so that the positioning state of the forehead support pad 11 is more stable.

The forehead support pad 11 cooperates with the connecting portion 12 through a ratchet and ratchet mechanism. The ratchets are provided on the forehead support pad 11 or on the connecting portion 12 . The use of the ratchet mechanism allows the wearer to rotate the forehead support pad 11 in one direction. A rotation direction indicator is provided on the forehead support pad 11 or the connecting portion 12 to prevent the wearer from spending extra time in judging the rotation direction of the forehead support pad 11 . The ratchet and ratchet mechanism can make the positioning state of the positioned forehead support pad 11 more stable.

In one embodiment, the pivot portion is the pivot 112 . The connection position is the pivot hole 122 . The pivot 112 is located between the two forehead support pads 11 and is fixedly connected with the two forehead support pads 11 . The pivot 112 cooperates with the pivot hole 122 provided on the connecting portion 12 , and the connecting portion 12 can rotate around the pivot 112 . Alternatively, the pivot 112 can also be disposed on the connecting portion 12 , and the forehead support pad 11 is pivotally connected to the pivot 112 .

The forehead support pad 11 is provided with a mounting portion 114 for mounting the headband connector 15 . The headgear may be connected to the respiratory mask 10 via connectors 15 mounted on the mounting portion 114 . In this way, the wearer can use the headband to pull the forehead support assembly when wearing it, and stably attach the forehead support assembly to the wearer's forehead, preventing unnecessary deviation of the forehead support assembly from affecting the wearing comfort of the wearer. .

The installation part 114 is a stepped hole, and the diameter of the first part close to the external environment is smaller than the diameter of the second part far away from the external environment. The connecting piece 15 is provided with a stepped shaft 151 matched with the stepped hole, and the stepped shaft 151 is provided with an axially opened slot, so that when the connecting piece 15 is installed in the stepped hole, the end of the stepped shaft 151 can be Radial shrinkage occurs to easily enter the stepped hole. After entering the stepped hole, the end of the stepped shaft 151 returns to its original state, so that the connecting piece 15 is snapped onto the mounting portion 114 . The stepped shaft 151 of the connecting piece 15 can rotate in the stepped hole, which is convenient for the wearer to adjust the angle of the headband.

The present invention also proposes a breathing mask 10, which includes a main frame 13, a mask cushion arranged on the main frame 13, and a forehead support assembly. The forehead support component included in the respiratory mask 10 can allow the wearer to adjust it autonomously according to his own forehead features. In this way, during the wearing process of the breathing mask 10, since the forehead support assembly can be pressed against the wearer's forehead position, the pressure of the breathing mask 10 on the wearer's own face can be relieved, thus improving the wearing comfort and satisfaction of the wearer. Spend.

While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for parts thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims (7)

1. a kind of forehead support component, for being connected to the main frame of breathing mask, the forehead support component includes：

Forehead support pad, for being fitted in the forehead of human body face；

Connecting portion, including the first end being connected on the main frame and be rotatably connected with the forehead support pad second End；

Wherein, the forehead support pad includes multiple mating surfaces, rotation when each mating surface to the forehead support pad rotates The distance of axis has multiple；

Or different mating surfaces to the forehead support pad rotate when rotation axis distance it is different；

The forehead support component includes the lockable mechanism that locking positioning is carried out to the forehead support pad；

The lockable mechanism includes the first keeper for being arranged on forehead support pad and is arranged on the second of the connecting portion Second keeper at end, second keeper is engaged with first keeper surrounds the connecting portion to forehead support pad The second end rotation carry out locking positioning；

The forehead support component includes two forehead support pads and is arranged between described two forehead support pads Pivot, the articulated section with pivot pivot joint is provided with the second end of the connecting portion, the axis of the pivot is the rotation Shaft axis.

2. forehead support component according to claim 1, it is characterised in that first keeper includes surrounding the rotation Shaft axis circumferentially equally distributed first are raised, and second keeper includes being arranged on the second end of the connecting portion and institute State the first depression of the first raised male-female engagement；Or first keeper is including circumferentially uniform around the rotation axis Second depression of distribution, second keeper include being arranged on the shell fragment at the second end of the connecting portion and are arranged on described It is raised with the second of the described second depression male-female engagement on shell fragment.

3. forehead support component according to claim 1, it is characterised in that the cross sectional shape of the forehead support pad includes Circle, polygon, ellipse or cam shape.

4. forehead support component according to claim 1, it is characterised in that the forehead support pad and the connecting portion It is connected between second end by ratchet ratch mechanism.

5. forehead support component according to claim 1, it is characterised in that be provided with the forehead support pad for pacifying Fill the installation portion of headband connector.

6. forehead support component according to claim 5, it is characterised in that the installation portion includes shoulder hole, close to outer The aperture of the Part I of portion's environment is less than the aperture of the Part II away from external environment condition.

7. a kind of breathing mask, including main frame and the forehead support according to any claim in claim 1 to 6 Component, the connecting portion of the forehead support component are fixedly connected with the main frame.