Patent ID: 11883599
Assignee: RESMED PTY LTD
Field: Medical technology (Instruments)
Classification: CPC A  B | IPC A  B

Claim 0:
1. A pad for forming a seal forming structure against a user's skin for use with a patient interface, the pad comprising:
a base layer having a first permeability to at least one substance;
a fiber layer comprising a plurality of fibers for contacting a patient's skin, each fiber of the fiber layer being spaced apart from the base layer; and
a connection layer for connecting the fibers to the base layer, the connection layer having a second permeability to the at least one substance;
wherein the base layer and/or the fiber layer is/are adapted to act as a reservoir for the at least one substance;
wherein the first permeability is an adjusted permeability that is configured to allow controlled speed of substance migration from the base layer to the connection layer; wherein the second permeability is an adjusted permeability that is configured to allow controlled speed of substance migration from the connection layer to the fiber layer; and wherein the first permeability is greater than the second permeability.