최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0676869 (2012-11-14) |
등록번호 | US-8567404 (2013-10-29) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 18 인용 특허 : 477 |
A cushion for a patient interface that delivers breathable gas to a patient includes a base wall structured to be connected to a frame, an underlying support cushion extending away from the base wall towards the patient's face in use, and a membrane provided to substantially cover at least a portion
A cushion for a patient interface that delivers breathable gas to a patient includes a base wall structured to be connected to a frame, an underlying support cushion extending away from the base wall towards the patient's face in use, and a membrane provided to substantially cover at least a portion of the underlying cushion. The membrane is adapted to form a continuous seal on the patient's face. The underlying cushion has a spring-like connection with the base wall. The underlying cushion and/or base wall define a spring constant that varies along a length of the seal.
1. A cushion for a patient interface that delivers breathable gas to a patient, the cushion including nasal bridge, cheek and chin regions, the cushion defining, at least in part, a breathing cavity, the cushion comprising: a membrane including nasal bridge, cheek and chin regions forming a continuo
1. A cushion for a patient interface that delivers breathable gas to a patient, the cushion including nasal bridge, cheek and chin regions, the cushion defining, at least in part, a breathing cavity, the cushion comprising: a membrane including nasal bridge, cheek and chin regions forming a continuous sealing structure to form a continuous seal on nasal bridge, cheek, and chin regions of the patient's face, the membrane having an inner edge that defines a triangular-shaped aperture adapted to receive the patient's nose and mouth; anda support structure to support the membrane, the support structure including: a wall having a top portion and a bottom portion; anda pair of underlying cushions joined in the nasal bridge region of the cushion and extending along the top portion of the wall to provide support to the membrane throughout the nasal bridge region and cheek regions of the cushion,wherein the membrane extends from the support structure and terminates at the inner edge of the membrane,wherein the pair of underlying cushions extends in the nasal bridge and cheek regions of the cushion such that the membrane and the pair of underlying cushions form at least a double-walled construction in the nasal bridge and cheek regions of the cushion,wherein: each of the pair of underlying cushions extends, in a cross-sectional view, away from the wall and includes an inwardly curved portion that extends into and curves inwardly toward the breathing cavity in a spaced-relationship with respect to the membrane,the membrane, from front view, covers each inwardly curved portion of the pair of underlying cushions,each inwardly curved portion of the pair of underlying cushions terminates at a respective free end, the free ends of the pair of underlying cushions being disposed within the breathing cavity, andeach said inwardly curved portion of the pair of underlying cushions extends along the nasal bridge and cheek regions of the cushion and terminates such that each said inwardly curved portion of the pair of underlying cushions is absent in a majority of the chin region of the cushion to allow the membrane to flex toward the breathing cavity,wherein a first portion of the support structure extends laterally beyond a second exterior portion of the cushion, andwherein: the first portion of the support structure is movable with respect to the second exterior portion when the cushion is worn and a force is exerted on the cushion,the first portion of the support structure is movable from an initial position towards a space exterior of the cushion when the force is exerted on the cushion, andthe first portion of the support structure is configured to resiliently move back into the initial position when the force is no longer exerted on the cushion. 2. The cushion according to claim 1, wherein the membrane forms a widest point of the cushion, and the bottom portion of the wall is entirely internally offset with respect to the widest point. 3. The cushion according to claim 2, wherein a first cross-sectional configuration of the support structure in the nasal bridge region of the cushion is different than a second cross-sectional configuration of the support structure in the cheek regions of the cushion. 4. The cushion according to claim 3, wherein the cushion has only a single-walled construction formed by the membrane in at least a portion of the chin region so as to allow the membrane to flex toward the breathing cavity in the at least a portion of the chin region without restraint due to the pair of underlying cushions. 5. The cushion according to claim 4, wherein the first portion of the support structure includes at least a portion of the pair of underlying cushions, the membrane extends from the pair of underlying cushions, and the first and second cross-sectional configurations of the support structure in the nasal bridge region and the cheek regions of the cushion vary by varying an underlying cushion offset. 6. The cushion according to claim 5, wherein the membrane in the nasal bridge region of the cushion has a height that is greater than a height of the membrane in the cheek regions of the cushion. 7. The cushion according to claim 6, wherein a third cross-sectional configuration of the support structure in a lower facial area of the cheek regions of the cushion is different than a fourth cross-sectional configuration of the support structure in an upper facial area of the cheek regions of the cushion. 8. The cushion according to claim 7, wherein the cushion is configured to exert a spring force when the force is exerted on the cushion such that the first portion of the support structure is configured to resiliently move back into the initial position when the force is no longer exerted on the cushion. 9. The cushion according to claim 8, wherein the first, third and fourth cross-sectional configurations of the support structure vary from one another so as to provide different spring constants in the nasal bridge region, the lower facial area of the cheek regions and the upper facial area of the cheek regions of the cushion, and wherein the first, third and fourth cross-sectional configurations of the support structure vary by varying 1) a height, a thickness and/or a curvature of the wall and/or pair of underlying cushions; and/or 2) an offset of the pair of underlying cushions. 10. The cushion according to claim 4, wherein the first portion of the support structure includes at least a portion of the wall, the membrane extends from the wall, and the first and second cross-sectional configurations of the support structure in the nasal bridge region and the cheek regions of the cushion vary by varying an offset of the pair of underlying cushions. 11. The cushion according to claim 10, wherein the membrane in the nasal bridge region of the cushion has a height that is greater than a height of the membrane in the cheek regions of the cushion. 12. The cushion according to claim 11, wherein at least a portion of the support structure has a spring configuration that, at least in part, defines displacement of the cushion with respect to the force exerted on the cushion. 13. The cushion according to claim 11, wherein a third cross-sectional configuration of the support structure in a lower facial area of the cheek regions is different than a fourth cross-sectional configuration of the support structure in an upper facial area of the cheek regions. 14. The cushion according to claim 13, wherein the cushion is configured to exert a spring force when the force is exerted on the cushion such that the first portion of the support structure is configured to resiliently move back into the initial position when the force is no longer exerted on the cushion. 15. The cushion according to claim 14, wherein the first, third and fourth cross-sectional configurations of the support structure vary from one another so as to provide different spring constants in the nasal bridge region, the lower facial area of the cheek regions and the upper facial area of the cheek regions of the cushion, and wherein the first, third and fourth cross-sectional configurations of the support structure vary by varying 1) a height, a thickness and/or a curvature of the wall and/or pair of underlying cushions; and/or 2) an offset of the pair of underlying cushions. 16. A cushion for a patient interface that delivers breathable gas to a patient, the cushion including nasal bridge, cheek and chin regions, the cushion defining, at least in part, a breathing cavity, the cushion comprising: a membrane including nasal bridge, cheek and chin regions forming a continuous sealing structure to form a continuous seal on nasal bridge, cheek, and chin regions of the patient's face, the membrane having an inner edge that defines a triangular-shaped aperture adapted to receive the patient's nose and mouth; anda support structure to support the membrane, the support structure including: a wall having a top portion and a bottom portion; andan underlying cushion connected to the wall and including a nasal bridge region, a left cheek region and a right cheek region to provide support for the membrane,wherein the membrane extends from the support structure and terminates at the inner edge of the membrane,wherein the underlying cushion extends adjacent a perimeter of the triangular-shaped aperture in the cheek regions of the cushion such that the cushion has at least a double-walled construction in at least the cheek regions,wherein: the underlying cushion extends, in cross section, away from the wall and includes an inwardly curved portion that extends into and curves toward the breathing cavity in a spaced-relationship with respect to the membrane,the membrane, from front view, covers the inwardly curved portion of the underlying cushion,the inwardly curved portion of the underlying cushion terminates at a free end of the underlying cushion, the free end of the underlying cushion being disposed within the breathing cavity, andthe inwardly curved portion of the underlying cushion extends along the nasal bridge region, left cheek region and right cheek region of the underlying cushion and terminates such that the inwardly curved portion of the underlying cushion is absent in a majority of the chin region of the cushion to allow the membrane to flex toward the breathing cavity,wherein a first portion of the support structure extends laterally beyond a second exterior portion of the cushion, andwherein: the first portion of the support structure is movable relative to the second exterior portion of the cushion when the cushion is worn and a force is exerted on the cushion,the first portion of the support structure being movable from an initial position towards a space exterior of the cushion when the force is exerted on the cushion, andthe first portion of the support structure is configured to resiliently move back into the initial position when the force is no longer exerted on the cushion. 17. The cushion according to claim 16, wherein the membrane forms a widest point of the cushion, and the bottom portion of the wall is entirely internally offset with respect to the widest point. 18. The cushion according to claim 17, wherein a first cross-sectional configuration of the support structure in the nasal bridge region of the cushion is different than a second cross-sectional configuration of the support structure in the cheek regions of the cushion. 19. The cushion according to claim 18, wherein the cushion has only a single-walled construction formed by the membrane in at least a portion of the chin region so as to allow the membrane to flex toward the breathing cavity in the at least a portion of the chin region without restraint due to the underlying cushion. 20. The cushion according to claim 19, wherein the first portion of the support structure includes at least a portion of the underlying cushion, the membrane extends from the underlying cushion, and the first and second cross-sectional configurations of the support structure in the nasal bridge region and the cheek regions of the cushion vary by varying an underlying cushion offset. 21. The cushion according to claim 20, wherein the membrane in the nasal bridge region of the cushion has a height that is greater than a height of the membrane in the cheek regions of the cushion. 22. The cushion according to claim 21, wherein a third cross-sectional configuration of the support structure in a lower facial area of the cheek regions of the cushion is different than a fourth cross-sectional configuration of the support structure in an upper facial area of the cheek regions of the cushion. 23. The cushion according to claim 22, wherein the cushion is configured to exert a spring force when the force is exerted on the cushion such that the first portion of the support structure is configured to resiliently move back into the initial position when the force is no longer exerted on the cushion. 24. The cushion according to claim 23, wherein the first, third and fourth cross-sectional configurations of the support structure vary from one another so as to provide different spring constants in the nasal bridge region, the lower facial area of the cheek regions and the upper facial area of the cheek regions of the cushion, and wherein the first, third and fourth cross-sectional configurations of the support structure vary by varying 1) a height, a thickness and/or a curvature of the wall and/or underlying cushion; and/or 2) an offset of the underlying cushion. 25. The cushion according to claim 19, wherein the first portion of the support structure includes at least a portion of the wall, the membrane extends from the wall, and the first and second cross-sectional configurations of the support structure in the nasal bridge region and the cheek regions of the cushion vary by varying an offset of the underlying cushion. 26. The cushion according to claim 25, wherein the membrane in the nasal bridge region of the cushion has a height that is greater than a height of the membrane in the cheek regions of the cushion. 27. The cushion according to claim 26, wherein at least a portion of the support structure has a spring configuration that, at least in part, defines displacement of the cushion with respect to the force exerted on the cushion. 28. The cushion according to claim 26, wherein a third cross-sectional configuration of the support structure in a lower facial area of the cheek regions of the cushion is different than a fourth cross-sectional configuration of the support structure in an upper facial area of the cheek regions of the cushion. 29. The cushion according to claim 28, wherein the cushion is configured to exert a spring force when the force is exerted on the cushion such that the first portion of the support structure is configured to resiliently move back into the initial position when the force is no longer exerted on the cushion. 30. The cushion according to claim 29, wherein the first, third and fourth cross-sectional configurations of the support structure vary from one another so as to provide different spring constants in the nasal bridge region, the lower facial area of the cheek regions and the upper facial area of the cheek regions of the cushion, and wherein the first, third and fourth cross-sectional configurations of the support structure vary by varying 1) a height, a thickness and/or a curvature of the wall and/or underlying cushion; and/or 2) an offset of the underlying cushion.
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