US 10,376,633 B2
Microflow restrictor assembly and methods of making the same
Robert G. Schinazi, Oceanside, CA (US)
Assigned to L2R Enterprises, LLC, Las Vegas, NV (US)
Filed by L2R Enterprises, LLC, Las Vegas, NV (US)
Filed on Feb. 21, 2017, as Appl. No. 15/438,270.
Claims priority of provisional application 62/298,168, filed on Feb. 22, 2016.
Prior Publication US 2017/0241583 A1, Aug. 24, 2017
Int. Cl. A61M 5/14 (2006.01); A61M 5/142 (2006.01); A61M 5/168 (2006.01); A61M 39/10 (2006.01)
CPC A61M 5/142 (2013.01) [A61M 5/141 (2013.01); A61M 5/168 (2013.01); A61M 39/10 (2013.01); A61M 2207/00 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A microflow assembly comprising:
a microflow assembly housing comprising an interior surface;
a mandrel having an exterior surface, the mandrel positioned adjacent to the microflow assembly housing so that at least a portion of the exterior surface of the mandrel is substantially parallel to at least a portion of the interior surface of the microflow assembly housing; and
at least one protrusion extending from either the interior surface of the microflow assembly housing or the exterior surface of the mandrel, the at least one protrusion abutting either the exterior surface of the mandrel or the interior surface of the microflow assembly housing to form an impermeably sealed fluid channel configured to reduce sagging within the microflow assembly, the impermeably sealed fluid channel having a channel inlet and a channel outlet,
wherein the impermeably sealed fluid channel is formed when the at least one protrusion is only partially-hardened, and
wherein at least one of the surfaces which form the impermeably sealed fluid channel has an average surface roughness that is greater than about 0.012 microns and less than about 5 microns.