Nasal mask
First Claim
1. A device for delivering a supply of gases to a user comprising a patient interface, in use in fluid communication with said supply of gases, engaging with said user and thereby supplying said gases to said user;
- and outlet means being integrated with or in fluid communication with said patient interface, said outlet means comprising;
a valve body including an internal passage, in use at least a portion of said gases flowing through said internal passage, an external vent, and a valve member operatively connected to said valve body and having at least two configurations, a first configuration in use during inspiration of said patient substantially blocking said vent and a second configuration in use with said vent passing expired gases from said patient.
1 Assignment
0 Petitions
Accused Products
Abstract
A system is disclosed comprising a high pressure gases source: for example a compressor, a low cross section conduit adapted to convey gases from the compressor, and a patient interface delivering gases to the patient. The patient interface includes valve member which is substantially closed during inspiration and venting externally during expiration. The combination of the low cross section and lightweight conduit and the valve member result in increased patient comfort.
37 Citations
18 Claims
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1. A device for delivering a supply of gases to a user comprising a patient interface, in use in fluid communication with said supply of gases, engaging with said user and thereby supplying said gases to said user;
- and outlet means being integrated with or in fluid communication with said patient interface, said outlet means comprising;
a valve body including an internal passage, in use at least a portion of said gases flowing through said internal passage, an external vent, and a valve member operatively connected to said valve body and having at least two configurations, a first configuration in use during inspiration of said patient substantially blocking said vent and a second configuration in use with said vent passing expired gases from said patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- and outlet means being integrated with or in fluid communication with said patient interface, said outlet means comprising;
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10. A valve for use with a patient interface, for delivering breathing assistance in the form of gases to a patient, said valve being integrated with or in fluid communication with said patient interface, said valve comprising:
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a valve body including an internal passage, in use at least a portion of said gases flowing through said internal passage, an external vent, and a valve member operatively connected to said valve body and having at least two configurations, a first configuration in use during inspiration of said patient substantially blocking said vent and a second configuration in use with said vent passing expired gases from said patient. - View Dependent Claims (11, 12, 13, 14, 15, 16, 18)
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17. A system for delivering respiratory gases to a user comprising:
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a high pressure gases source, a low cross section conduit adapted to convey gases from said gases source, and a patient interface adapted to deliver gases from said conduit to said patient.
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Specification