CN-122006049-A - Pad of breathing mask and breathing mask

CN122006049ACN 122006049 ACN122006049 ACN 122006049ACN-122006049-A

Abstract

The invention relates to a liner of a breathing mask and the breathing mask, and relates to the technical field of ventilation treatment. The cushion of the breathing mask comprises an oral-nasal cushion main body, wherein a cavity is formed in the oral-nasal cushion main body, the oral-nasal cushion main body comprises a nose structure body, an oral structure body and an oral-nasal connecting part for connecting the nose structure body and the oral structure body, and a step structure with a plane step is formed between the oral-nasal connecting part and a top supporting part and/or between the oral-nasal connecting part and a side supporting part, so that when the nose structure body is subjected to the pressure of gas in the cavity, the plane step can serve as a pressure force platform, and the oral-nasal connecting part can be driven to deform and drive the top supporting part, the side supporting part and the nose concave part to integrally move upwards, thereby being better attached to the nose of a user, and improving the comfort and wearing compliance of the user.

Inventors

ZHU PENG
LI ERLIANG
WANG YAJIE
ZHUANG ZHI

Assignees

北京瑞迈特医疗科技股份有限公司
天津怡和嘉业医疗科技有限公司

Dates

Publication Date: 20260512
Application Date: 20241031

Claims (11)

1. A cushion for a respiratory mask, comprising an oronasal cushion body having a chamber formed therein, the oronasal cushion body comprising a nose structure, an oral structure, and an oronasal connection connecting the nose structure and the oral structure, The nose structure comprises a nose concave part with a nose opening, side supporting parts and a top supporting part, wherein the side supporting parts extend towards the mouth structure respectively, the nose opening is communicated with the cavity, the side supporting parts are positioned on two outer sides of the nose concave part, and the top supporting part is positioned on the front outer side of the nose concave part; The nose structure comprises a nose structure body, a side support part, a top support part, an oral-nasal connection part, a side support part and a top support part, wherein the nose structure body is provided with a plurality of side support parts; and a step structure with a preset step width is formed between the mouth-nose connecting part and the top supporting part and/or between the mouth-nose connecting part and the side supporting part.
2. The cushion according to claim 1, wherein the oronasal connection portion includes a first oronasal connection portion connected to the top support portion, a surface of the first oronasal connection portion adjacent to the top support portion being configured as a stepped surface, the first oronasal connection portion extending from an underside of the top support portion in a direction away from the top support portion to form the stepped structure having the predetermined stepped width, and the first oronasal connection portion forming a right angle or an obtuse angle with the top support portion, and/or The utility model discloses a side support portion, including the side support portion, the mouth-nose connecting portion includes with the side support portion links to each other's second mouth-nose connecting portion, second mouth-nose connecting portion is close to the surface construction of side support portion is the step face, second mouth-nose connecting portion follow the downside of side support portion extends in the direction of keeping away from side support portion in order to form the step structure that has the preset step width, and second mouth-nose connecting portion with form right angle contained angle or obtuse angle contained angle between the side support portion.
3. The cushion of a respiratory mask of claim 2 wherein the junction between the side support portion and the nose recess portion has a first thickness, The thickness of the connection part between the side supporting part and the second oral-nasal connection part is a second thickness and/or the thickness of the second oral-nasal connection part is a second thickness, and the second thickness is smaller than the first thickness.
4. A cushion for a respiratory mask according to claim 3, wherein a transition connection is connected between the top support and the side support, the oronasal connection further comprising a third oronasal connection connected to the transition connection, the third oronasal connection having a thickness of the first thickness.
5. The cushion of a respiratory mask according to any one of claims 1-4, wherein the oronasal connection portion gradually decreases in width in a direction from the top support portion to the side support portion in a circumferential direction of the oronasal cushion body.
6. The cushion for a respiratory mask according to any one of claims 1-4, wherein in a cross-section of the nose recess, an included angle between opposing walls of the nose recess on opposite sides of the nose opening is between 100 ° and 170 °.
7. The cushion of any one of claims 1-4, wherein the nasal recess has a height after inflation that is less than or consistent with the height of the side support.
8. The cushion according to any one of claims 1 to 4, wherein openings communicating with the chamber are provided on front and rear sides of the mouth structure, respectively, the mouth-nose connection portion including a fourth mouth-nose connection portion provided around a circumference of the mouth structure and connected to the mouth structure, the mouth structure including a mouth connection portion connected to the fourth mouth-nose connection portion, and a thickness of the mouth connection portion is smaller than that of other portions of the mouth structure.
9. The cushion of a respiratory mask according to claim 8, wherein the front side of the mouth structure is connected to the fourth oral-nasal connection portion by an inclined portion having the same thickness as the fourth oral-nasal connection portion.
10. The cushion of any one of claims 2-4, wherein the top support portion includes a top support connection portion connected to the first oral-nasal connection portion, the top support connection portion having a thickness that is less than a thickness of other portions of the top support portion.
11. A respiratory mask comprising the cushion of any one of claims 1-10.

Description

Pad of breathing mask and breathing mask Technical Field The invention relates to the technical field of ventilation treatment, in particular to a liner of a breathing mask and the breathing mask. Background Common respiratory masks, such as full face masks, cover the nose and mouth of a patient when worn, and thus may affect the field of view of the patient, and in addition, full face masks have problems that they may cause marks or even acne to the skin of the user, and that patients suffering from claustrophobia are unacceptable, and thus, mouth-nose masks that cover only the area under the nose and mouth of the user are favored by users. Existing oronasal liners generally seal against the nose of the user by expanding the portions on either side of the nose of the user, but such seals compress against the sides of the nose wings of the user, particularly at high pressures, with a significant reduction in comfort. Disclosure of Invention The present invention provides a cushion for a respiratory mask and a respiratory mask, which are used for solving at least one technical problem described above. According to a first aspect of the present invention there is provided a cushion for a respiratory mask comprising an oronasal cushion body having a chamber formed therein, the oronasal cushion body comprising a nasal structure, an oral structure and an oronasal connection connecting the nasal structure and the oral structure, The nose structure comprises a nose concave part with a nose opening, side supporting parts and a top supporting part, wherein the side supporting parts extend towards the mouth structure respectively, the nose opening is communicated with the cavity, the side supporting parts are positioned on two outer sides of the nose concave part, and the top supporting part is positioned on the front outer side of the nose concave part; The nose structure comprises a nose structure body, a side support part, a top support part, an oral-nasal connection part, a side support part and a top support part, wherein the nose structure body is provided with a plurality of side support parts; and a step structure with a preset step width is formed between the mouth-nose connecting part and the top supporting part and/or between the mouth-nose connecting part and the side supporting part. In one embodiment, the oral-nasal connection comprises a first oral-nasal connection connected to the top support, the surface of the first oral-nasal connection adjacent to the top support being configured as a stepped surface, the first oral-nasal connection extending from the underside of the top support in a direction away from the top support to form the stepped structure having a predetermined stepped width, and the first oral-nasal connection forming a right or obtuse angle with the top support, and/or The utility model discloses a side support portion, including the side support portion, the mouth-nose connecting portion includes with the side support portion links to each other's second mouth-nose connecting portion, second mouth-nose connecting portion is close to the surface construction of side support portion is the step face, second mouth-nose connecting portion follow the downside of side support portion extends in the direction of keeping away from side support portion in order to form the step structure that has the preset step width, and second mouth-nose connecting portion with form right angle contained angle or obtuse angle contained angle between the side support portion. In one embodiment, the junction between the side support and the nose recess has a first thickness, The thickness of the connection part between the side supporting part and the second oral-nasal connection part is a second thickness and/or the thickness of the second oral-nasal connection part is a second thickness, and the second thickness is smaller than the first thickness. In one embodiment, a transition connection part is connected between the top support part and the side support part, and the oral-nasal connection part further comprises a third oral-nasal connection part connected with the transition connection part, wherein the thickness of the third oral-nasal connection part is the first thickness. In one embodiment, the oronasal connection portion gradually decreases in width in a direction from the top support portion to the side support portion in a circumferential direction of the oronasal cushion body. In one embodiment, the angle between the opposing walls of the nose recess on opposite sides of the nose opening is 100 ° -170 ° in the cross-section of the nose recess. In one embodiment, the nasal depression has a height after expansion that is less than or consistent with the height of the side support. In one embodiment, the front side and the rear side of the oral structure are respectively provided with an opening communicated with the cavity, the oral-nasal connection part comprises a fourth oral-nasal connection p