Headgear for nasal masks
First Claim
1. Headgear for securing a mask to a user'"'"'s face, comprising or including:
- at least one strap having two ends each adapted when in use to be attached to a respective side of said mask and around the back of the user'"'"'s head, wherein a section of said at least one strap is substantially more elastic than the remainder of said at least one strap, said section in use assisting to maintain an appropriate tension to locate said mask on the face of said user.
1 Assignment
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Accused Products
Abstract
A nasal mask is disclosed which is more comfortable for the user to wear and reduces side leakage as compared to masks of the prior art. In a first form headgear for securing a mask to the user'"'"'s face is disclosed where a section of at least one strap securing a mask to a user'"'"'s face is substantially more elastic then the remainder of the strap. Headgear of this type allows the user to tilt the head backwards without lateral movement of the mask. In a further aspect, headgear tensioners are disclosed which provides a preset fitting of the mask and ensures that a user cannot over tighten the straps. The tensioners are recalling tension devices attached to the straps and/or mask on either side of the mask. In another form the headgear tensioner is a strap attachment on either side of the mask that allows the straps to move back through the attachment to a predetermined position that provides an appropriate tension between the back of the user'"'"'s head and mask. This limits the amount of leakage from the mask when the straps tighten or loosen as the user moves his or her head.
125 Citations
12 Claims
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1. Headgear for securing a mask to a user'"'"'s face, comprising or including:
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at least one strap having two ends each adapted when in use to be attached to a respective side of said mask and around the back of the user'"'"'s head, wherein a section of said at least one strap is substantially more elastic than the remainder of said at least one strap, said section in use assisting to maintain an appropriate tension to locate said mask on the face of said user. - View Dependent Claims (2, 3, 4)
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5. A nasal mask securable to a user'"'"'s face, comprising or including:
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restraining means attached to or around the head of said user, a body portion having an inlet receiving said supply of gases and an open section, sealing means attached to said body portion substantially contoured to the facial contours of said user, and a receiving means attached to said body which in use engages with said restraining means, said restraining means comprising or including;
a least one strap having two ends each capable of being releasable attached to said receiving means, said at least one strap extending, in use, from one side of said mask, around the back of the user'"'"'s head to the other side of said mask, wherein a section of said at least one strap is substantially more elastic than the remainder of said at least one strap, said section in use assists to maintain an appropriate tension to locate said mask on the face of said user. - View Dependent Claims (6)
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7. Headgear for securing a mask to a user'"'"'s face comprising or including:
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at least one strap having two ends, where at least one end adapted to, in use, be fixed to a side of said mask, a tensioning device, adapted to attach to one of the end of at least one strap not attached to said mask and said mask, or integrated as part of said at least one strap, which provides a tension between said strap and said mask, thereby restraining said mask on the face of said user. - View Dependent Claims (8, 9)
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10. Headgear for securing a mask to a user s face comprising or including:
at least one strap having two ends, where at least one end is adapted to, in use, be fixed to a side of said mask, around the back of the user'"'"'s head to the other side of said mask, each of said side attachment means comprising or including;
a frame attached to said mask, said frame including an opening, and a tongue within said opening, said tongue having a first end connected with said frame and a second end freely moveable, said second end including a gripping surface and said opening including a sliding surface, wherein a gap between said gripping surface and said sliding surface is of a distance such that when said strap is in use passed through said gap said second end is moved out of alignment with said frame allowing the length of said strap to be pulled through said gap, wherein, in use, when said strap is pulled through said gap to an over tensioned condition, said strap will slip through said gap until a balance tension is reached, said balance tension appropriate to substantially locate said mask on the face of said user. - View Dependent Claims (11, 12)
Specification