PATIENT INTERFACE DEVICE HAVING A RESIDUAL LEAK SEAL CUSHION
First Claim
1. A patient interface device, comprising:
- a fluid coupling device having an inlet end and an outlet end;
a frame member having a connecting portion defining a first opening;
a cushion member coupled to the frame member, the cushion member having a main body portion and a coupling portion attached to the main body portion, the main body portion including an inwardly extending residual leak sealing member defining a second opening in the cushion member, wherein the coupling portion is attached to a first side of the connecting portion in a manner wherein at least a portion of the residual leak sealing member extends over the first opening on the first side of the connecting portion around the entire periphery of the first opening, and wherein the fluid coupling device is attached to a second side of the connecting portion opposite the first side in a manner wherein the outlet end of the fluid coupling device extends through the first opening and a terminal portion of the outlet end engages the residual leak sealing member without extending through the second opening and creates an airflow seal at a joint connection between the fluid coupling conduit and the frame member.
1 Assignment
0 Petitions
Accused Products
Abstract
A patient interface device includes a fluid coupling device, a frame member having a connecting portion defining a first opening, and a cushion member. The cushion member has a main body portion, a coupling portion attached thereto, and an inwardly extending sealing member defining a second opening in the cushion member. The coupling portion is attached to a first side of the connecting portion so that at least a portion of the sealing member extends over the first opening. The fluid coupling device is attached to a second side of the connecting portion so that the outlet end of the fluid coupling device extends through the first opening and a terminal portion of the outlet end engages the sealing member and creates an airflow seal at a joint connection between the fluid coupling conduit and the frame member.
16 Citations
17 Claims
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1. A patient interface device, comprising:
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a fluid coupling device having an inlet end and an outlet end; a frame member having a connecting portion defining a first opening; a cushion member coupled to the frame member, the cushion member having a main body portion and a coupling portion attached to the main body portion, the main body portion including an inwardly extending residual leak sealing member defining a second opening in the cushion member, wherein the coupling portion is attached to a first side of the connecting portion in a manner wherein at least a portion of the residual leak sealing member extends over the first opening on the first side of the connecting portion around the entire periphery of the first opening, and wherein the fluid coupling device is attached to a second side of the connecting portion opposite the first side in a manner wherein the outlet end of the fluid coupling device extends through the first opening and a terminal portion of the outlet end engages the residual leak sealing member without extending through the second opening and creates an airflow seal at a joint connection between the fluid coupling conduit and the frame member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of delivering a flow of breathing gas to a patient, comprising:
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generating the flow of breathing gas; delivering the flow of breathing gas to a patient interface device, the patient interface device having a frame member having a connecting portion, a cushion member having a main body portion and a coupling portion coupled to a first side of the connecting portion, and a fluid coupling device coupled to a second side of the connecting portion opposite the first side, the flow being delivered to the fluid coupling device; and preventing residual leak flow from the patient interface device through a joint connection between the fluid coupling conduit and the frame member using a sealing member provided as part of the main body portion of the cushion member that creates a seal at the joint connection. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification