US 11,752,294 B2
Respiratory access assembly with improved seal assembly
Edward B. Madsen, Cumming, GA (US); and Angela G. Mitchell, Atlanta, GA (US)
Assigned to Avent, Inc., Alpharetta, GA (US)
Filed by Avent, Inc., Alpharetta, GA (US)
Filed on Jan. 31, 2019, as Appl. No. 16/263,375.
Prior Publication US 2020/0246578 A1, Aug. 6, 2020
Int. Cl. A61M 16/20 (2006.01); A61M 16/00 (2006.01); A61M 16/04 (2006.01); A61M 16/08 (2006.01); A61M 39/06 (2006.01)
CPC A61M 16/201 (2014.02) [A61M 16/0003 (2014.02); A61M 16/0409 (2014.02); A61M 16/0816 (2013.01); A61M 39/0613 (2013.01); A61M 16/0463 (2013.01); A61M 16/0486 (2014.02)] 15 Claims
OG exemplary drawing
 
1. A respiratory access assembly comprising:
a manifold having a first mating surface defining a single port opening, said single port opening being a first port opening;
a rotatable adapter having a second mating surface defining a single port opening, said single port opening being a second port opening; and
a seal assembly disposed between the manifold and the rotatable adapter, the seal assembly comprising a first seal ring, a second seal ring, an outer seal ring disposed proximate an outer perimeter of at least one of the manifold or the rotatable adapter, and a connection portion connected between the first seal ring and the second seal ring;
wherein the rotatable adapter is rotatable relative to the manifold between a single port open and closed configuration, wherein the connection/disconnection between the first port opening and the second port opening forms the single port open and closed configuration,
wherein in the open configuration the first port opening of the manifold is aligned with the second port opening and sealed with the second port opening by the first seal ring of the seal assembly to form a fluid connection between the first port opening of the manifold and the second port opening of the rotatable adapter, and wherein in the closed configuration the first port opening of the manifold is sealed with a portion of the second mating surface of the rotatable adapter and the second seal ring of the seal assembly,
wherein the connection portion forms a seal between the first mating surface and the second mating surface between the first seal ring and the second seal ring, and
wherein the seal assembly is countersunk with respect to the first mating surface or the second mating surface of the manifold such that an outer sealing surface of the seal assembly is planar and the outer sealing surface of the seal assembly is flush with either the first mating surface or the second mating surface.