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AssigneeIntersurgical AG
InventorsMartin David Spayne, Derek Anthony Mclaughlin, Simon Robert Payne, Matthew James William Leary, Mark Jennings
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There is provided a method of manufacturing a sealing member (42). The method comprises the steps of: (a) providing a mould having a cavity, a polymer injection port and a gas inlet port (38); (b) injecting a polymer and a blowing agent through the polymer injection port (28) into the cavity of the mould; and (c) introducing gas through the gas inlet port (38) into the cavity of the mould, to form a sealing member (42). The sealing member (42) comprises an internal chamber (44) at least partially bounded by a resiliently deformable enclosing wall formed of the polymer, the enclosing wall including an external surface, the external surface having a form that is determined by the cavity of the mould.
A method of manufacturing a sealing member, the method comprising the steps of:
A sealing member comprising an enclosed internal chamber at least partially bounded by a resiliently deformable enclosing wall, the enclosing wall including an external surface, the enclosing wall having a plurality of gas pockets formed therein, the sealing member having the form of a loop, and the internal chamber of the sealing member being continuous and extending around at least a majority of the loop.
A respiratory interface device comprising a body portion and a sealing member, the body portion comprising a first polymer, and the sealing member comprising a second polymer, the sealing member being fixed to the body portion, wherein the sealing member comprises an enclosed internal chamber at least partially bounded by a resiliently deformable enclosing wall formed of the second polymer, the enclosing wall including a patient-contacting surface and having a plurality of gas pockets formed therein, the sealing member having the form of a loop, and the internal chamber of the sealing member being continuous and extending around at least a majority of the loop.
Dependencies are inferred from the claim text.