초록 ▼

The present invention relates to a device for delivering a supply of gases to a patient. The device includes a patient interface and connecting member. The connecting member is preferably a L-shaped swivelled connector that is capable of being fixed into one of two positions, a first position where

The present invention relates to a device for delivering a supply of gases to a patient. The device includes a patient interface and connecting member. The connecting member is preferably a L-shaped swivelled connector that is capable of being fixed into one of two positions, a first position where the connector is freely rotatable within the patient interface, and a second position where an interference between the interface and connector prevents the free rotation of the connector within the patient interface. The present invention further relates to a connector that has outlet means, which includes at least one outlet vent and a funnel, which in use directs and passes a substantial portion gases expired from the patient through the outlet vent or vents.

대표청구항 ▼

1. A patient interface for use as part of a system for delivering a supply of gases to a user, the patient interface comprising: a hollow body adapted to locate onto a face of the user in use, said hollow body comprising an inside, an outside and an aperture passing from said inside of said hollow b

1. A patient interface for use as part of a system for delivering a supply of gases to a user, the patient interface comprising: a hollow body adapted to locate onto a face of the user in use, said hollow body comprising an inside, an outside and an aperture passing from said inside of said hollow body to said outside of said hollow body,an elbow connector adapted to connect between said aperture and the supply of gases so that in use said inside of said hollow body is in fluid communication with the supply of gases through said elbow connector,said elbow connector comprising a funnel located within said elbow connector, said elbow connector comprising as least one outlet bias hole, said funnel adapted so that in use a substantial portion of gases expired from the user pass through said funnel and pass out of said patient interface through said at least one outlet bias hole, andsaid funnel shielding said at least one outlet bias hole from an inlet flow of gases supplied to the user, said funnel located in and extending along a portion of said elbow connector that is substantially vertical when the user is lying on his or her back wearing said patient interface, said funnel extending from said at least one bias vent hole to a point at or close to a connection between said elbow connector and said hollow body,said funnel fixed against rotation within said elbow connector. 2. A patient interface as claimed in claim 1 wherein said elbow connector is adapted to locate in said aperture in use and connect with said hollow body, said elbow connector and said hollow body further adapted so that in use said elbow connector can be swiveled relative to said hollow body. 3. A patient interface as claimed in claim 2 wherein said elbow connector further comprises a flexible duct portion on the exterior surface of said elbow connector over and around said at least one outlet bias hole, at least one outlet vent hole formed in said flexible duct portion. 4. A patient interface as claimed in claim 3 wherein said patient interface is a nasal mask. 5. A patient interface as claimed in claim 3 wherein said patient interface is a mouthpiece. 6. A patient interface for use as part of a system for delivering a supply of gases to a user, the patient interface comprising: a hollow body adapted to locate onto a face of the user in use, said hollow body comprising an inside, an outside, and a rigid portion that comprises an aperture passing from said inside of said hollow body to said outside of said hollow body;a mask cushion portion connected to said hollow body and in use adapted to substantially seal against the face of the user;an elbow connector located in said aperture so that in use said inside of said hollow body is in fluid communication with the supply of gases through said elbow connector, said elbow connector able to swivel relative to said hollow body,said elbow connector comprising a funnel located within said elbow connector, said elbow connector comprising at least one outlet bias hole, said funnel adapted so that in use a substantial portion of gases expired from the user pass through said funnel and pass out of said patient interface through said at least one outlet bias hole, andsaid funnel shielding said at least one outlet bias hole from gases supplied to the user by the supply of gases, said funnel extending from said at least one bias vent hole to a point at or close to a connection between said elbow connector and said hollow body,said funnel fixed against rotation within said elbow connector. 7. A patient interface as claimed in claim 6, wherein said patient interface is a nasal mask and said elbow connector further comprises a flexible duct portion on an exterior surface of said elbow connector over and around said at least one outlet bias hole, at least one outlet vent hole being formed in said flexible duct portion. 8. A patient interface as claimed in claim 6, wherein said funnel comprises a tubular extension extending from within said elbow connector from said at least one outlet bias hole. 9. A patient interface as claimed in claim 6, said funnel being substantially vertical when the user is supine and wearing said patient interface. 10. A patient interface for use as part of a system for delivering a supply of gases to a user, the patient interface comprising: a hollow body adapted to locate onto a face of the user in use, said hollow body comprising an inside, an outside and an aperture passing from said inside of said hollow body to said outside of said hollow body,an elbow connector adapted to connect between said aperture and the supply of gases so that in use said inside of said hollow body is in fluid communication with the supply of gases through said elbow connector,said elbow connector comprising a funnel located within said elbow connector, and said elbow connector comprising as least one outlet bias hole, said funnel adapted so that in use a substantial portion of gases expired from the user pass through said funnel and pass out of said patient interface through said at least one outlet bias hole,said funnel extending within said elbow connector and shielding said at least one outlet bias hole from an inlet flow of gases supplied to the user, said funnel molded within an interior of said elbow connector, said funnel located in and extending along a portion of said elbow connector that is substantially vertical when the user is laying on a back of the user wearing said patient interface, said funnel extending from said at least one bias vent hole to a point at or close to a connection between said elbow connector and said hollow body wherein said elbow connector is adapted to locate in said aperture in use and connect with said hollow body,said elbow connector and said hollow body further adapted so that in use said elbow connector can be swiveled relative to said hollow body and wherein said elbow connector further comprises a flexible duct portion on an exterior surface of said elbow connector over and around said at least one outlet bias hole, at least one outlet vent hole formed in said flexible duct portion. 11. A patient interface as claimed in claim 10, wherein said patient interface is a nasal mask. 12. A patient interface as claimed in claim 10, wherein said patient interface is a mouthpiece. 13. A patient interface for use as part of a system for delivering a supply of gases to a user, the patient interface comprising: a hollow body adapted to locate onto a face of the user in use, said hollow body comprising an inside, an outside, and a rigid portion that comprises an aperture passing from said inside of said hollow body to said outside of said hollow body;a mask cushion portion connected to said hollow body and in use adapted to substantially seal against the face of the user;an elbow connector located in said aperture so that in use said inside of said hollow body is in fluid communication with the supply of gases through said elbow connector, said elbow connector able to swivel relative to said hollow body,said elbow connector comprising a funnel located within said elbow connector, said elbow connector comprising at least one outlet bias hole, said funnel adapted so that in use a substantial portion of gases expired from the user pass through said funnel and pass out of said patient interface through said at least one outlet bias hole, andsaid funnel extending within said elbow connector and shielding said at least one outlet bias hole from gases supplied to the user by the supply of gases, said funnel molded within an interior of said elbow connector that is substantially vertical when the user is lying on a back of the user wearing said patient interface, said funnel extending from said at least one bias vent hole to a point at or close to a connection between said elbow connector and said hollow body,wherein said patient interface is a nasal mask and said elbow connector further comprises a flexible duct portion on an exterior surface of said elbow connector over and around said at least one outlet bias hole, at least one outlet vent hole being formed in said flexible duct portion. 14. A patient interface comprising: a hollow body comprising an inside, an outside and an aperture passing from said inside of said hollow body to said outside of said hollow body;a mask cushion portion connected to said hollow body and adapted to be placed against a face of a user;an elbow connector comprising a first portion and a second portion wherein said first portion is substantially perpendicular to said second portion, said first portion being disposed in line with said mask portion, said elbow connector comprising at least one outlet bias hole disposed at a point at or near a location where said first portion and said second portion meet;a funnel located within said elbow connector and extending from a location within said elbow connector and ending at or near said at least one bias hole, said funnel fixed against rotation within said elbow connector;said funnel shielding said at least one outlet bias hole and said funnel substantially overlying said second portion of said elbow connector. 15. The patient interface as claimed in claim 14, wherein said at least one bias hole is adapted to allow an airflow out of the patient interface. 16. The patient interface as claimed in claim 14, wherein said elbow connector comprises at least two distinct gases-flow pathways. 17. The patient interface of as claimed in 16, wherein said at least two distinct gases-flow pathways comprise a first gases-flow pathway adapted to allow an inspiratory flow of gases towards said mask portion and a second gases-flow pathway adapted to allow a distinct flow of expiratory gases away from said mask portion. 18. The patient interface as claimed in claim 17, wherein said second gases-flow pathway comprises an interior of said funnel. 19. The patient interface as claimed in claim 18, wherein the first gases-flow pathway does not comprise said interior of said funnel. 20. A patient interface as claimed in claim 14, wherein said elbow connector further comprises a flexible duct portion on an exterior surface of said elbow connector over and around said at least one outlet bias hole, and said flexible duct portion comprises at least one outlet vent hole formed in said flexible duct portion. 21. A patient interface as claimed in claim 20, wherein said flexible duct portion comprises a rubber material.