Sealing lip device for a respiratory mask, respiratory mask and a method and mould for producing the same
3 Assignments
0 Petitions
Accused Products
Abstract
A sealing lip device for a breathing mask includes a receiving opening for receiving at least the nose tip region of a mask wearer, a sealing lip which is formed from an elastomeric material and which surrounds the receiving opening and which is configured to cross the bridge of the nose and which has a contact zone provided for bearing against the face of a mask wearer in use. The sealing lip is elastically and yieldingly arranged in such a way that a first sealing lip zone which in use seals the region of the bridge of the nose has a higher degree of flexibility than a second sealing lip zone which in use is adjacent to at least one of the nostrils and the upper lip of the mask wearer in the application position of the breathing mask. The sealing lip includes a folding bellows structure that suspends the sealing lip in the region of the first zone provided for sealing of the region of the bridge of the nose. The folding bellows structure includes a fold indentation having zones of differing wall thickness.
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Citations
95 Claims
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1-46. -46. (canceled)
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47. A sealing lip device for a breathing mask having a receiving opening for receiving at least the nose tip region of a mask wearer, a sealing lip which is formed from an elastomeric material and which surrounds the receiving opening and which is configured to cross the bridge of the nose and which has a contact zone provided for bearing against the face of a mask wearer in use, wherein the sealing lip is elastically and yieldingly arranged in such a way that a first sealing lip zone which in use seals the region of the bridge of the nose has a higher degree of flexibility than a second sealing lip zone which in use is adjacent to at least one of the nostrils and the upper lip of the mask wearer in the application position of the breathing mask, and
wherein the sealing lip includes a folding bellows structure that suspends the sealing lip in the region of the first zone provided for sealing of the region of the bridge of the nose, the folding bellows structure including a fold indentation having zones of differing wall thickness.
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70. A breathing mask comprising a mask base body, a sealing lip device with a receiving opening for receiving at least the nose tip region of a mask wearer, a sealing lip which is formed from an elastomeric material and which surrounds the receiving opening and which is configured to cross the bridge of the nose and which has a contact zone provided for bearing against the face of a mask wearer, wherein the sealing lip is elastically and yieldingly arranged in such a way that in use there is a higher level of flexibility in the region of the bridge of the nose than in the region of at least one of the nostrils and the upper lip, and
wherein the sealing lip includes a folding bellows structure that suspends the sealing lip in the region of the first zone provided for sealing of the region of the bridge of the nose, the folding bellows structure including a fold indentation having zones of differing wall thickness.
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72. A method of producing a sealing lip device for a breathing mask comprising:
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introducing an elastomeric material into a mold cavity formed by a mold, at least partially setting the material in the mold cavity; and opening of the mold and removing the material from the mold; wherein the step of introducing the elastomeric material into the mold cavity includes introducing the material in two discrete steps which occur in succession in respect of time to form various portions of the sealing lip device having varying degrees of flexibility. - View Dependent Claims (73, 74, 75, 76)
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- 81. A breathing mask comprising a mask body and a sealing pad device which is formed from an elastomeric material and which in conjunction with the mask body delimits a mask internal space, and an outlet device for the discharge of at least partially consumed respiratory gas from the mask internal space, wherein the outlet device has a flow path portion which is at least partially defined by the sealing pad device.
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89. An elastomeric cushion for a breathing mask, comprising:
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a sealing lip; a frame; a mid-cushion section provided between the sealing lip and the frame; and a folding bellows structure provided about at least a portion of the mid-cushion section, wherein the folding bellows structure includes one or more fold indentations each having an indentation depth that is variable in different regions of the folding bellows structure. - View Dependent Claims (90, 91, 92, 93, 94)
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95. A cushion as set forth in claim 96, wherein the thickness of the sealing lip is less than the thickness of the frame.
Specification