Source: https://patents.google.com/patent/US20150217072A1/en
Timestamp: 2019-07-19 19:14:51
Document Index: 646287443

Matched Legal Cases: ['art 1632', 'art 1634', 'arts 1632', 'arts 1632', 'art 1634', 'art 1632', 'arts 1632', 'arts 1632']

US20150217072A1 - Cushion to frame assembly mechanism - Google Patents
US20150217072A1
US20150217072A1 US14/689,480 US201514689480A US2015217072A1 US 20150217072 A1 US20150217072 A1 US 20150217072A1 US 201514689480 A US201514689480 A US 201514689480A US 2015217072 A1 US2015217072 A1 US 2015217072A1
US10137270B2 (en
2016-08-16 First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=37942191&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US20150217072(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
As shown in FIG. 10, the cushion 616 includes a side wall 624 and a face contacting portion 626 extending from the side wall 624. In an embodiment, the face contacting portion 626 has a double wall construction, e.g., membrane and underlying support cushion. Also, in an embodiment, the cushion 626 is constructed of liquid silicone rubber (LSR). However, other suitable materials may be used. As illustrated, interlocking members in the form of hooks 652 protrude from the side walls 624. In the illustrated embodiment, four hooks 652 are provided. However, the cushion 616 may include any suitable′number of hooks 652.
Fold-over clips 852, e.g., molded of plastic, are provided to interconnect the frame clip 812, cushion 816, and frame 814. The fold-over clips 852 maybe molded separately from the frame clip 812 and then assembled thereto. Alternatively, the fold-over clips 852 may be integrally molded onto the frame clip 812. As illustrated, two fold-over clips 852 are provided. However, other suitable numbers of fold-over clips may be used, e.g., more than two, to interconnect the frame clip 812, cushion 816, and frame 814.
Then, the first part 1632 of the frame clip 1612 is slid onto one side of the cushion/frame sub-assembly and the second part 1634 is slid onto the opposite side of the cushion/frame sub-assembly such that the upper and lower wall portions 1636, 1638 of the first and second parts 1632, 1634 sandwich the cushion flange 1628 and the frame flange 1620 therebetween (see FIG. 46). The first and second parts 1632, 1634 are slid′towards one another until the retaining members 1647 of the second part 1634 interlock with the first part 1632, e.g., with a snap-fit. Thus, the first and second parts 1632, 1634 sandwich the frame 1614 and the cushion 1616 to maintain their engagement. The upper and lower wall portions 1636, 1638 of the first and second parts 1632, 1634 provide a compression seal in use.
As shown in FIGS. 72-75 and 82-86, the cushion 2116 includes a face-contacting portion 2126 and a non-face-contacting portion 2127. In an embodiment, the face contacting portion 2126 has a double wall construction, e.g., membrane and underlying support cushion. Also, in an embodiment, the cushion 2116 is constructed of liquid silicone rubber (LSR). However, other suitable materials maybe used. The non-face-contacting portion 2127 of the cushion 2116 includes a retaining portion 2160. As illustrated, the end 2161 of the retaining portion 2160 has an angled or pointed configuration. In addition, the non-face-contacting portion 2127 provides a resiliently flexible lip 2170. A space 2171 is provided behind the lip 2170 to provide the lip 2170 with a range of movement in use.
a second frame including a third wall defining a second substantially cylindrical surface, a fourth wall, a member extending toward a forehead support and two headgear attachment locations, the third wall extending from the fourth wall, the second substantially cylindrical surface at least partially overlapping with the first substantially cylindrical surface, and the second frame being configured to removably interlock with the first frame proximate the opening when the first frame and the second frame are moved towards one another along the central axis; and
a cushion molded to the first frame and including a side wall and a sealing surface adapted to seal around at least a patient's nose, the sealing surface being connected to the side wall at an outer periphery of the sealing surface and being unconnected at an inner periphery of the sealing surface; wherein
2. The mask assembly according to claim 1, wherein the second frame includes two second frame openings through which the first frame is visible when the first frame and the second frame are attached to one another.
11. The mask assembly according to claim 1, wherein the sealing surface is a surface of a membrane.
12. The mask assembly according to claim 1, wherein
the second frame includes two second frame openings through which the first frame is visible when the first frame and the second frame are attached to one another and the opening is between the two second frame openings,
the first frame and the second frame have mutual contact points to prevent relative rotation of the first frame with respect to the second frame about the opening,
the first frame and the cushion together form the breathing chamber, and
the sealing surface is a surface of a membrane.
13. A mask assembly for treatment of sleep disorder breathing by delivering a flow of pressurized gas to a patient, the mask assembly comprising:
a second frame including a third wall defining an annular opening and including two headgear attachment locations, the substantially cylindrical surface at least partially extending through the annular opening, and the second frame being configured to removably interlock with the first frame proximate the elbow opening when the first frame and the second frame are moved towards one another along the central axis; and
a cushion attached to the first frame and including a side wall and a sealing surface adapted to seal around at least a patient's nose, the sealing surface being connected to the side wall at an outer periphery of the sealing surface and being unconnected at an inner periphery of the sealing surface; wherein
the sealing surface is on an opposite side of the first frame with respect to the elbow opening, and
14. The mask assembly according to claim 13, wherein the cushion is removably attached to the first frame.
15. The mask assembly according to claim 13, wherein the cushion is molded to the first frame.
16. The mask assembly according to claim 13, wherein the second frame includes two second frame openings through which the first frame is visible when the first frame and the second frame are attached to one another.
17. The mask assembly according to claim 16, wherein a first portion of the first frame protrudes through a first one of the two second frame openings and a second portion of the first frame protrudes through a second one of the two second frame openings.
18. The mask assembly according to claim 16, wherein the opening is between the two second frame openings.
19. The mask assembly according to claim 13, wherein the first frame and the second frame are adapted to be interlocked while an inlet elbow is engaged with the mask assembly.
20. The mask assembly according to claim 19, wherein the inlet elbow is configured to communicate the supply of breathing gas through the opening.
21. The mask assembly according to claim 13, wherein the first frame and the second frame have mutual contact points to prevent relative rotation of the first frame with respect to the second frame about the opening.
22. The mask assembly according to claim 13, wherein the two headgear attachment locations are adapted to engage with clips attached to straps of a headgear assembly.
23. The mask assembly according to claim 13, wherein the two headgear attachment locations are disposed adjacent to and on opposed lateral sides of the opening.
24. The mask assembly according to claim 13, wherein the first frame and the cushion together form the breathing chamber.
25. The mask assembly according to claim 13, wherein the sealing surface is a surface of a membrane.
26. The mask assembly according to claim 13, wherein
the cushion is removably attached to the first frame,
the second frame includes two second frame openings through which the first frame is visible when the first frame and the second frame are attached to one another and a first portion of the first frame protrudes through a first one of the two second frame openings and a second portion of the first frame protrudes through a second one of the two second frame openings,
the two headgear attachment locations are disposed adjacent to and on opposed lateral sides of the opening,
27. The mask assembly according to claim 13, wherein
the cushion is molded to the first frame,
the second frame includes two second frame openings through which the first frame is visible when the first frame and the second frame are attached to one another,
US20150217072A1 true US20150217072A1 (en) 2015-08-06
US10137270B2 US10137270B2 (en) 2018-11-27