Nasal masks
First Claim
1. A device for delivering a supply of gases to a user comprising or including:
- a patient interface, which in use is in fluid communication with said supply of gases,securement means attached to or around the head of said user, andengaging means adapted to slidingly engage said securement means with said patient interface,restraining means on said patient interface to restrain said engaging means at least in one dimension on said patient interface, but allowing said engaging means to slide within said restraining means in at least one other dimension, said restraining means being substantially vertically adjustable on said patient interface in either a freely moveable position or lockable in at least one vertical position.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention is related to patient interfaces, such as nasal masks (2), particularly though not solely for use in providing continuous positive airway pressure therapy or positive pressure ventilation to patients suffering from obstructive sleep apnoea. In a first form the invention is a patient interface that has securement means (601) releasably attaching the interface to headstraps wherein the securement means (601) is slidably engaged with the patient interface. In a second form of the invention the mask headgear is formed of a plurality of straps (701, 702) where at least one of the plurality of straps is slidably engaged with another of the plurality of straps. In a further form the patient interface may be provided with vertically adjustable engaging means (802) that engage the patient interface with the headgear straps.
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Citations
18 Claims
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1. A device for delivering a supply of gases to a user comprising or including:
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a patient interface, which in use is in fluid communication with said supply of gases, securement means attached to or around the head of said user, and engaging means adapted to slidingly engage said securement means with said patient interface, restraining means on said patient interface to restrain said engaging means at least in one dimension on said patient interface, but allowing said engaging means to slide within said restraining means in at least one other dimension, said restraining means being substantially vertically adjustable on said patient interface in either a freely moveable position or lockable in at least one vertical position. - View Dependent Claims (2, 3, 4)
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5. A continuous positive airways pressure system for delivering gases to a user comprising or including a pressurised source of gases, transport means in fluid communication with said pressurised source adapted to convey said gases, and a nasal mask in fluid communication with said transport means, in use, delivering said gases to said user, said nasal mask comprising or including:
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a body portion having an inlet, in use said inlet receiving a supply of gases, sealing means engaged with said body portion, and adapted to seal against the facial contours of said user, and engaging means adapted to in use provide a sliding engagement with a means of securement to a user, and a compressive force on said sealing means to ensure said supply of gases is delivered to a user without significant leakage, restraining means on said body portion to restrain said engaging means at least in one dimension on said body portion, but allowing said engaging means to slide within at least one other dimension, said restraining means being substantially vertically adjustable on said body portion in either a freely moveable position or lockable in at least one vertical position. - View Dependent Claims (6, 7)
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8. A device for delivering a supply of gases to a user comprising or including:
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a patient interface, which in use is in fluid communication with said supply of gases, securement means attached to or around the head of said user, and engaging means adapted to engage said securement means with said patient interface, wherein said securement means comprises or includes a plurality of straps that are fastened around the head of said user in order to secure said patient interface to said user'"'"'s face, and at least one of said plurality of straps is slidably engaged with another of said plurality of straps. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A continuous positive airways pressure system for delivering gases to a user comprising or including a pressurised source of gases, transport means in fluid communication with said pressurised source adapted to convey said gases, and a nasal mask in fluid communication with said transport means in use delivering said gases to said user, said nasal mask comprising or including:
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a body portion having a inlet, in use said inlet receiving a supply of gases, sealing means engaged with said body portion, and adapted to seal against the facial contours of said user, and engaging means adapted to in use provide a sliding engagement with a means of securement to a user, and a compressive force on said sealing means to ensure said supply of gases is delivered to a user without significant leakage, wherein said means of securement comprises or includes a plurality of straps, that are fastened around the head of said user in order to secure said patient interface to said user'"'"'s face, and at least one of said plurality of straps is slidably engaged with another of said plurality of straps. - View Dependent Claims (16, 17, 18)
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Specification